/* ============================================================================
   SUNRISE SCHOOL ERP STYLES
   Enterprise Resource Management System
   ============================================================================ */

/* --------------------------------------------------------------------------
   CSS Variables for ERP (Extends theme.css variables)
   -------------------------------------------------------------------------- */
:root {
    /* ERP-specific layout variables */
    --erp-sidebar-width: 260px;
    --erp-sidebar-collapsed: 70px;
    --erp-topbar-height: 64px;
    --erp-bg: #f4f6f9;
    --erp-sidebar-bg: #1e3a5f;
    --erp-sidebar-active: #2c4f7a;
    --erp-sidebar-hover: rgba(255, 255, 255, 0.08);
    --erp-text-light: rgba(255, 255, 255, 0.85);
    --erp-text-muted: rgba(255, 255, 255, 0.6);

    /* Alias for backward compatibility (uses theme.css values) */
    --border-light: var(--surface-border);
    --transition-fast: 150ms ease;
}

/* --------------------------------------------------------------------------
   Loading State
   -------------------------------------------------------------------------- */
.erp-loading {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--erp-bg);
    gap: var(--space-4);
}

.erp-loading .spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--surface-light);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.erp-loading p {
    color: var(--text-secondary);
    font-size: var(--text-sm);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* --------------------------------------------------------------------------
   Login Page
   -------------------------------------------------------------------------- */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: var(--space-6);
}

.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 450px;
    width: 100%;
}

.login-card {
    background: var(--surface-white);
    border-radius: var(--radius-2xl);
    padding: var(--space-10);
    box-shadow: var(--shadow-xl);
    width: 100%;
}

.login-header {
    text-align: center;
    margin-bottom: var(--space-8);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.login-logo {
    width: 80px;
    height: auto;
    margin-bottom: var(--space-4);
}

.login-title {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--color-primary);
    margin-bottom: var(--space-1);
}

.login-subtitle {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.login-footer {
    margin-top: var(--space-6);
    text-align: center;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--text-secondary);
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
}

.back-link:hover {
    color: var(--color-primary);
}

/* Login Info Section */
.login-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: var(--text-inverse);
}

.login-info h2 {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    margin-bottom: var(--space-6);
}

.role-cards {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.role-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.role-icon {
    font-size: var(--text-2xl);
}

.role-card h3 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-1);
}

.role-card p {
    font-size: var(--text-sm);
    opacity: 0.8;
}

/* --------------------------------------------------------------------------
   ERP Layout
   -------------------------------------------------------------------------- */
.erp-layout {
    display: flex;
    min-height: 100vh;
    background: var(--erp-bg);
    transition: all 0.3s ease;
}

/* Sidebar */
.erp-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--erp-sidebar-width);
    height: 100vh;
    background: var(--erp-sidebar-bg);
    z-index: 100;
    display: flex;
    flex-direction: column;
    transition: width 0.3s ease;
    overflow: hidden;
}

/* Sidebar Scrollbar - Stylish & Smooth */
.erp-sidebar:hover {
    overflow-y: auto;
    overflow-x: hidden;
}

.erp-sidebar::-webkit-scrollbar {
    width: 6px;
}

.erp-sidebar::-webkit-scrollbar-track {
    background: transparent;
    margin: 4px 0;
}

.erp-sidebar::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    transition: background 0.3s ease;
}

.erp-sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.4);
}

/* Firefox Scrollbar */
.erp-sidebar {
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
}

/* Sidebar Navigation Scroll */
.sidebar-nav {
    flex: 1;
    padding: var(--space-3);
    overflow-x: hidden;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.15) transparent;
}

.sidebar-nav::-webkit-scrollbar {
    width: 5px;
}

.sidebar-nav::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-nav::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 10px;
}

.sidebar-nav::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Collapsed State */
.sidebar-collapsed .erp-sidebar {
    width: var(--erp-sidebar-collapsed);
}

.sidebar-collapsed .erp-main {
    margin-left: var(--erp-sidebar-collapsed);
}

/* Sidebar Header */
.sidebar-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    min-height: 60px;
    position: relative;
    flex-shrink: 0;
}

.sidebar-logo {
    width: 38px;
    height: 38px;
    min-width: 38px;
    flex-shrink: 0;
    object-fit: contain;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.1);
    padding: 4px;
}

.sidebar-brand {
    font-family: var(--font-display);
    font-size: var(--text-base);
    font-weight: var(--font-bold);
    color: var(--text-inverse);
    white-space: nowrap;
    flex: 1;
    overflow: hidden;
    transition: opacity 0.2s ease, width 0.2s ease;
}

.sidebar-collapsed .sidebar-brand {
    opacity: 0;
    width: 0;
    padding: 0;
}

.sidebar-collapse-btn {
    width: 36px;
    height: 36px;
    min-width: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-light);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    flex-shrink: 0;
    transition: all 0.2s ease;
}

.sidebar-collapse-btn:hover {
    background: var(--surface-muted);
    color: var(--text-primary);
}

/* Collapsed header - stack vertically */
.sidebar-collapsed .sidebar-header {
    flex-direction: column;
    padding: var(--space-3) var(--space-2);
    gap: var(--space-2);
    align-items: center;
}

.sidebar-collapsed .sidebar-logo {
    width: 36px;
    height: 36px;
    min-width: 36px;
}

.sidebar-collapsed .sidebar-collapse-btn {
    width: 100%;
    max-width: 36px;
}

/* Sidebar Navigation Collapsed State */
.sidebar-nav.collapsed .menu-text,
.sidebar-nav.collapsed .menu-arrow,
.sidebar-nav.collapsed .menu-badge {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

.sidebar-collapsed .menu-text,
.sidebar-collapsed .menu-arrow,
.sidebar-collapsed .menu-badge {
    opacity: 0;
    width: 0;
    overflow: hidden;
    transition: opacity 0.2s ease;
}

.sidebar-loading,
.sidebar-empty {
    padding: var(--space-4);
    text-align: center;
    color: var(--erp-text-muted);
    font-size: var(--text-sm);
}

/* Menu Items */
.sidebar-menu-item,
.sidebar-menu-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    width: 100%;
    padding: var(--space-3);
    background: transparent;
    border: none;
    border-radius: var(--radius-lg);
    color: var(--erp-text-light);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    cursor: pointer;
    text-align: left;
    text-decoration: none;
    transition: all 0.15s ease;
    margin-bottom: var(--space-1);
    position: relative;
    overflow: hidden;
}

.sidebar-menu-item:hover,
.sidebar-menu-toggle:hover {
    background: var(--erp-sidebar-hover);
    color: var(--text-inverse);
}

.sidebar-menu-item.active {
    background: var(--erp-sidebar-active);
    color: var(--text-inverse);
}

.sidebar-menu-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background: var(--color-accent);
    border-radius: 0 2px 2px 0;
}

.menu-icon {
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.menu-icon i {
    font-size: 18px;
    opacity: 0.9;
}

.menu-text {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: opacity 0.2s ease, width 0.2s ease;
}

.menu-arrow {
    flex-shrink: 0;
    transition: transform 0.2s ease, opacity 0.2s ease;
    opacity: 0.6;
}

.menu-badge {
    font-size: 10px;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    background: var(--badge-color, var(--color-accent));
    color: white;
    font-weight: var(--font-bold);
    flex-shrink: 0;
}

.menu-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
    opacity: 0.5;
}

/* Menu Group */
.sidebar-menu-group {
    margin-bottom: var(--space-1);
}

.sidebar-menu-group.expanded .menu-arrow {
    transform: rotate(180deg);
}

.sidebar-menu-group .sidebar-submenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.sidebar-menu-group.expanded .sidebar-submenu {
    max-height: 500px;
}

/* Submenu */
.sidebar-submenu {
    padding-left: var(--space-2);
}

.sidebar-submenu-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    padding-left: calc(var(--space-3) + 22px);
    border-radius: var(--radius-md);
    color: var(--erp-text-muted);
    font-size: var(--text-sm);
    text-decoration: none;
    transition: all 0.15s ease;
    position: relative;
}

.sidebar-submenu-item:hover {
    color: var(--erp-text-light);
    background: var(--erp-sidebar-hover);
}

.sidebar-submenu-item.active {
    color: var(--text-inverse);
    background: rgba(255, 255, 255, 0.1);
}

.sidebar-submenu-item .menu-icon {
    width: 18px;
    height: 18px;
}

.sidebar-submenu-item .menu-icon i {
    font-size: 14px;
}

/* Collapsed submenu - show on hover */
.sidebar-collapsed .sidebar-menu-group:hover .sidebar-submenu {
    position: absolute;
    left: var(--erp-sidebar-collapsed);
    top: 0;
    width: 200px;
    max-height: none;
    background: var(--erp-sidebar-bg);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    box-shadow: var(--shadow-lg);
    padding: var(--space-2);
    z-index: 200;
}

.sidebar-collapsed .sidebar-menu-group {
    position: relative;
}

.sidebar-collapsed .sidebar-submenu-item {
    padding-left: var(--space-3);
}

.sidebar-collapsed .sidebar-submenu-item .menu-text {
    opacity: 1;
    width: auto;
}

/* Main Content */
.erp-main {
    flex: 1;
    margin-left: var(--erp-sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left 0.3s ease;
}

/* Topbar */
.erp-topbar {
    position: sticky;
    top: 0;
    height: var(--erp-topbar-height);
    background: var(--surface-white);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    padding: 0 var(--space-6);
    z-index: 50;
    gap: var(--space-4);
}

.sidebar-toggle-mobile {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
}

.sidebar-toggle-mobile:hover {
    background: var(--surface-light);
}

.topbar-spacer {
    flex: 1;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.topbar-username {
    font-weight: var(--font-medium);
    color: var(--text-primary);
}

/* Mobile Responsive */
@media (max-width: 1024px) {
    .erp-sidebar {
        transform: translateX(-100%);
    }

    .erp-layout:not(.sidebar-collapsed) .erp-sidebar {
        transform: translateX(0);
    }

    .sidebar-collapsed .erp-sidebar {
        transform: translateX(-100%);
    }

    .erp-main {
        margin-left: 0;
    }

    .sidebar-collapsed .erp-main {
        margin-left: 0;
    }

    .sidebar-toggle-mobile {
        display: flex;
    }

    .sidebar-collapse-btn {
        display: none;
    }
}

/* User Dropdown */
.user-dropdown {
    position: relative;
}

.user-btn {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2);
    background: transparent;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.user-btn:hover {
    background: var(--surface-light);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--gradient-gold);
    color: var(--color-primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-bold);
    font-size: var(--text-lg);
}

.user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
}

.user-name {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
}

.user-role {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 200px;
    background: var(--surface-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--space-2);
    margin-top: var(--space-2);
    display: none;
    z-index: 100;
}

.user-dropdown:hover .dropdown-menu,
.dropdown-menu:hover {
    display: block;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    border: none;
    background: transparent;
    width: 100%;
    cursor: pointer;
    text-align: left;
}

.dropdown-item:hover {
    background: var(--surface-light);
    color: var(--text-primary);
}

.dropdown-item-danger:hover {
    background: #fef2f2;
    color: #dc2626;
}

.dropdown-divider {
    margin: var(--space-2) 0;
    border: none;
    border-top: 1px solid var(--surface-border);
}

/* Page Content */
.erp-content {
    flex: 1;
    padding: var(--space-6);
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
}

.page-title {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
}

.page-subtitle {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-top: var(--space-1);
}

/* --------------------------------------------------------------------------
   Dashboard Components
   -------------------------------------------------------------------------- */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.kpi-card {
    background: var(--surface-white);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    box-shadow: var(--shadow-sm);
}

.kpi-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
}

.kpi-primary .kpi-icon {
    background: #e0f2fe;
    color: #0284c7;
}

.kpi-success .kpi-icon {
    background: #dcfce7;
    color: #16a34a;
}

.kpi-warning .kpi-icon {
    background: #fef3c7;
    color: #d97706;
}

.kpi-danger .kpi-icon {
    background: #fee2e2;
    color: #dc2626;
}

.kpi-content {
    display: flex;
    flex-direction: column;
}

.kpi-value {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
}

.kpi-label {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.dashboard-section {
    margin-bottom: var(--space-6);
}

.section-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: var(--space-4);
}

.quick-action-card {
    background: var(--surface-white);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.quick-action-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.quick-action-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-3);
    background: var(--surface-light);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}

.quick-action-card span {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-primary);
}

.activity-card {
    background: var(--surface-white);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
}

/* --------------------------------------------------------------------------
   Profile Page
   -------------------------------------------------------------------------- */
.profile-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
}

@media (max-width: 992px) {
    .profile-grid {
        grid-template-columns: 1fr;
    }
}

.profile-card {
    background: var(--surface-white);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-sm);
    grid-column: 1 / -1;
}

@media (min-width: 992px) {
    .profile-card {
        grid-column: 1 / 2;
        grid-row: 1 / 3;
    }
}

.profile-header {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--surface-border);
}

.profile-avatar {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-full);
    background: var(--gradient-gold);
    color: var(--color-primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-bold);
    font-size: var(--text-3xl);
}

.profile-name {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
}

.profile-username {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-2);
}

.profile-roles {
    display: flex;
    gap: var(--space-2);
}

.role-badge {
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
}

.role-admin {
    background: #dbeafe;
    color: #1e40af;
}

.role-accountant {
    background: #dcfce7;
    color: #166534;
}

.role-teacher {
    background: #fef3c7;
    color: #92400e;
}

.profile-details {
    display: grid;
    gap: var(--space-4);
}

.detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--surface-border);
}

.detail-item:last-child {
    border-bottom: none;
}

.detail-label {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.detail-value {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-primary);
}

.settings-card {
    background: var(--surface-white);
    border-radius: var(--radius-2xl);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
}

.settings-title {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.settings-desc {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-5);
}

.security-tips {
    list-style: none;
    padding: 0;
    margin: 0;
}

.security-tips li {
    position: relative;
    padding-left: var(--space-6);
    margin-bottom: var(--space-3);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.security-tips li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #16a34a;
    font-weight: bold;
}

/* --------------------------------------------------------------------------
   Form Styles
   -------------------------------------------------------------------------- */
.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
}

.input-wrapper {
    position: relative;
}

.input-wrapper svg {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.input-wrapper .form-input {
    padding-left: var(--space-12);
}

.form-input {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-base);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    background: var(--surface-white);
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.1);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.validation-error {
    display: block;
    font-size: var(--text-xs);
    color: #dc2626;
    margin-top: var(--space-1);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* Alert Styles */
.alert {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    margin-bottom: var(--space-5);
}

.alert-error {
    background: #fef2f2;
    color: #dc2626;
    border: 1px solid #fecaca;
}

.alert-success {
    background: #f0fdf4;
    color: #16a34a;
    border: 1px solid #bbf7d0;
}

/* Spinner */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* --------------------------------------------------------------------------
   Mobile Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .erp-sidebar {
        transform: translateX(-100%);
    }

    .erp-sidebar.open {
        transform: translateX(0);
    }

    .erp-main {
        margin-left: 0;
    }

    .sidebar-toggle {
        display: flex;
    }
    
    .user-info {
        display: none;
    }
}

@media (max-width: 768px) {
    .erp-content {
        padding: var(--space-4);
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-3);
    }
}

/* --------------------------------------------------------------------------
   Text Utilities
   -------------------------------------------------------------------------- */
.text-muted {
    color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   Masters Page
   -------------------------------------------------------------------------- */
.masters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-4);
}

.master-card {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    background: var(--surface-white);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.master-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.master-icon {
    width: 56px;
    height: 56px;
    background: var(--surface-light);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    flex-shrink: 0;
}

.master-content {
    flex: 1;
}

.master-content h3 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.master-content p {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.master-arrow {
    color: var(--text-muted);
    flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   Data Tables
   -------------------------------------------------------------------------- */
.data-table-container {
    background: var(--surface-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: var(--space-4);
    text-align: left;
}

.data-table th {
    background: var(--surface-light);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--surface-border);
}

.data-table td {
    font-size: var(--text-sm);
    color: var(--text-primary);
    border-bottom: 1px solid var(--surface-border);
}

.data-table tbody tr:hover {
    background: var(--surface-light);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

/* Status Badges */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
}

.status-badge i {
    font-size: 0.65rem;
}

.status-active {
    background: #dcfce7;
    color: #166534;
}

.status-inactive {
    background: #f3f4f6;
    color: #6b7280;
}

.status-new {
    background: #e0f2fe;
    color: #0369a1;
}

.status-info {
    background: #dbeafe;
    color: #1e40af;
}

.status-warning {
    background: #fef3c7;
    color: #92400e;
}

.status-success {
    background: #dcfce7;
    color: #166534;
}

.status-danger {
    background: #fee2e2;
    color: #dc2626;
}

.status-primary {
    background: #ede9fe;
    color: #6d28d9;
}

.status-muted {
    background: #f3f4f6;
    color: #6b7280;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
}

.badge-primary {
    background: #dbeafe;
    color: #1e40af;
}

.badge-success {
    background: #dcfce7;
    color: #166534;
}

.badge-warning {
    background: #fef3c7;
    color: #92400e;
}

.badge-secondary {
    background: #f3f4f6;
    color: #6b7280;
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: var(--space-2);
}

.btn-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    background: var(--surface-light);
    color: var(--color-primary);
}

.btn-icon-danger:hover {
    background: #fef2f2;
    color: #dc2626;
}

/* Empty & Loading States */
.loading-state,
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-16);
    background: var(--surface-white);
    border-radius: var(--radius-xl);
    text-align: center;
}

.loading-state .spinner {
    width: 40px;
    height: 40px;
    border-width: 3px;
    border-color: var(--surface-border);
    border-top-color: var(--color-primary);
    margin-bottom: var(--space-4);
}

.empty-state svg {
    color: var(--text-muted);
    margin-bottom: var(--space-4);
}

.empty-state h3 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.empty-state p {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   Modal Styles
   -------------------------------------------------------------------------- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--space-4);
}

.modal-content {
    background: var(--surface-white);
    border-radius: var(--radius-2xl);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
}

.modal-sm {
    max-width: 400px;
}

.modal-lg {
    max-width: 700px;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--surface-border);
}

.modal-header h2 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    border-radius: var(--radius-full);
    font-size: var(--text-xl);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--surface-light);
    color: var(--text-primary);
}

.modal-content form,
.modal-body {
    padding: var(--space-6);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-5) var(--space-6);
    border-top: 1px solid var(--surface-border);
    background: var(--surface-light);
}

/* Form Row */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

@media (max-width: 640px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* Form Check */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
}

.form-check input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
}

/* Page Actions */
.page-actions {
    display: flex;
    gap: var(--space-3);
}

/* Danger Button */
.btn-danger {
    background: #dc2626;
    color: white;
}

.btn-danger:hover {
    background: #b91c1c;
}

/* Code styling */
code {
    background: var(--surface-light);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-md);
    font-family: monospace;
    font-size: var(--text-sm);
}

/* --------------------------------------------------------------------------
   Form Grid Layouts
   -------------------------------------------------------------------------- */
.form-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

.form-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
}

.form-grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);
}

@media (max-width: 768px) {
    .form-grid-2,
    .form-grid-3,
    .form-grid-4 {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 1024px) and (min-width: 769px) {
    .form-grid-3,
    .form-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Checkbox Group */
.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
}

/* --------------------------------------------------------------------------
   Filter Bar
   -------------------------------------------------------------------------- */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--surface-white);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-4);
    box-shadow: var(--shadow-sm);
}

.filter-group {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.filter-group label {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    white-space: nowrap;
}

.form-input-sm {
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    min-width: 150px;
}

/* Table Footer */
.table-footer {
    padding: var(--space-4);
    text-align: right;
}

/* Progress Indicators */
.progress-indicators {
    display: flex;
    gap: var(--space-1);
}

.progress-dot {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    background: var(--surface-light);
    color: var(--text-muted);
}

.progress-dot.completed {
    background: #dcfce7;
    color: #166534;
}

/* Additional Status Classes */
.status-draft {
    background: #fef3c7;
    color: #92400e;
}

.status-review {
    background: #dbeafe;
    color: #1e40af;
}

.status-rejected {
    background: #fef2f2;
    color: #dc2626;
}

/* --------------------------------------------------------------------------
   Wizard Styles
   -------------------------------------------------------------------------- */
.wizard-container {
    background: var(--surface-white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.wizard-steps {
    display: flex;
    border-bottom: 1px solid var(--surface-border);
    overflow-x: auto;
}

.wizard-step {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-4) var(--space-2);
    min-width: 120px;
    position: relative;
    opacity: 0.5;
}

.wizard-step.active {
    opacity: 1;
}

.wizard-step.completed .step-number {
    background: #16a34a;
    color: white;
}

.step-number {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    background: var(--surface-light);
    color: var(--text-secondary);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-2);
}

.wizard-step.active .step-number {
    background: var(--color-primary);
    color: white;
}

.step-label {
    font-size: var(--text-xs);
    color: var(--text-secondary);
    text-align: center;
}

.wizard-content {
    padding: var(--space-6);
}

.wizard-step-content {
    max-width: 800px;
    margin: 0 auto;
}

.wizard-actions {
    display: flex;
    justify-content: space-between;
    padding-top: var(--space-6);
    border-top: 1px solid var(--surface-border);
    margin-top: var(--space-6);
}

/* Form Sections */
.form-section {
    margin-bottom: var(--space-6);
}

.form-section-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

.form-section-desc {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-4);
}

/* Document Grid */
.document-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-4);
}

.document-card {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-fast);
}

.document-card.uploaded {
    border-color: #16a34a;
    background: #f0fdf4;
}

.document-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-light);
    border-radius: var(--radius-lg);
    color: var(--text-muted);
    flex-shrink: 0;
}

.document-card.uploaded .document-icon {
    background: #dcfce7;
    color: #16a34a;
}

.document-info {
    flex: 1;
}

.document-info h4 {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.document-action {
    flex-shrink: 0;
}

/* Info Card */
.info-card {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-4);
    background: #dbeafe;
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-4);
}

.info-icon {
    color: #1e40af;
}

.info-card h4 {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: #1e40af;
    margin-bottom: var(--space-1);
}

.info-card p {
    font-size: var(--text-sm);
    color: #1e40af;
}

/* Fee Summary */
.fee-summary {
    background: var(--surface-light);
    border-radius: var(--radius-xl);
    padding: var(--space-4);
}

.fee-summary h4 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-3);
}

.summary-table {
    width: 100%;
}

.summary-table td {
    padding: var(--space-2) 0;
    border-bottom: 1px solid var(--surface-border);
}

.summary-table .total-row td {
    border-bottom: none;
    padding-top: var(--space-3);
}

.text-right {
    text-align: right;
}

/* Payment Summary */
.payment-summary {
    background: var(--surface-light);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    margin-bottom: var(--space-4);
}

.payment-amount {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.payment-amount .label {
    font-size: var(--text-base);
    color: var(--text-secondary);
}

.payment-amount .amount {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--color-primary);
}

/* Checklist */
.checklist {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.checklist-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--text-muted);
}

.checklist-item.completed {
    color: #16a34a;
}

.checklist-item.pending svg {
    color: #dc2626;
}

/* --------------------------------------------------------------------------
   Student Profile Styles
   -------------------------------------------------------------------------- */
.profile-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--space-6);
}

@media (max-width: 1024px) {
    .profile-layout {
        grid-template-columns: 1fr;
    }
}

.profile-sidebar .profile-card {
    background: var(--surface-white);
    border-radius: var(--radius-2xl);
    padding: var(--space-6);
    text-align: center;
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--space-4);
}

.profile-avatar-large {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-4);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: white;
}

.profile-name {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.profile-subtitle {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-3);
}

.profile-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2);
    background: var(--surface-white);
    border-radius: var(--radius-xl);
    padding: var(--space-4);
    box-shadow: var(--shadow-sm);
}

.stat-item {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
}

.stat-label {
    display: block;
    font-size: var(--text-xs);
    color: var(--text-muted);
}

/* Tabs */
.tabs {
    display: flex;
    gap: var(--space-1);
    border-bottom: 1px solid var(--surface-border);
    margin-bottom: var(--space-4);
}

.tab {
    padding: var(--space-3) var(--space-4);
    background: none;
    border: none;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-muted);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
}

.tab:hover {
    color: var(--text-primary);
}

.tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.tab-content {
    background: var(--surface-white);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
}

/* Detail Cards */
.details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-4);
}

.detail-card {
    background: var(--surface-white);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
}

.detail-card h4 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--surface-border);
}

.detail-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.detail-row {
    display: flex;
    justify-content: space-between;
}

.detail-label {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.detail-value {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-primary);
}

/* Document List */
.document-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.document-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    background: var(--surface-light);
    border-radius: var(--radius-lg);
}

.document-item svg {
    color: var(--text-muted);
}

.document-details {
    flex: 1;
}

.document-name {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-primary);
}

.document-date {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   Approval Styles
   -------------------------------------------------------------------------- */
.approval-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-4);
}

.approval-card {
    background: var(--surface-white);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
}

.approval-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-3);
}

.admission-no {
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    color: var(--text-muted);
}

.approval-body h4 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.approval-meta {
    display: flex;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-top: var(--space-2);
}

.approval-progress {
    display: flex;
    gap: var(--space-2);
    padding: var(--space-3) 0;
    border-top: 1px solid var(--surface-border);
    border-bottom: 1px solid var(--surface-border);
    margin: var(--space-3) 0;
}

.approval-actions {
    padding-top: var(--space-3);
}

/* Review Layout */
.review-layout {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: var(--space-6);
}

@media (max-width: 1024px) {
    .review-layout {
        grid-template-columns: 1fr;
    }
}

.review-main {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.review-card {
    background: var(--surface-white);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
}

.review-card h3 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--surface-border);
}

.decision-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

.btn-success {
    background: #16a34a;
    color: white;
}

.btn-success:hover {
    background: #15803d;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* --------------------------------------------------------------------------
   Fee Management Styles
   -------------------------------------------------------------------------- */

/* Fee Setup Grid */
.fee-setup-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--space-4);
}

.fee-setup-card {
    background: var(--surface-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.fee-setup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4);
    background: var(--surface-light);
    border-bottom: 1px solid var(--surface-border);
}

.fee-setup-header h3 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin: 0;
}

.fee-setup-body {
    padding: var(--space-4);
}

.fee-session {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-3);
}

.fee-heads-list {
    margin-bottom: var(--space-4);
}

.fee-head-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-2) 0;
    border-bottom: 1px dashed var(--surface-border);
}

.fee-head-row:last-child {
    border-bottom: none;
}

.fee-head-name {
    font-size: var(--text-sm);
    color: var(--text-primary);
}

.fee-head-freq {
    font-size: var(--text-xs);
    color: var(--text-muted);
    padding: var(--space-1) var(--space-2);
    background: var(--surface-light);
    border-radius: var(--radius-sm);
}

.fee-head-amount {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
}

.fee-summary-row {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-3);
    background: var(--surface-light);
    border-radius: var(--radius-lg);
    margin-top: var(--space-3);
}

.fee-summary-item {
    flex: 1;
    text-align: center;
}

.fee-summary-item .label {
    display: block;
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.fee-summary-item .value {
    display: block;
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    color: var(--color-primary);
}

.fee-setup-footer {
    padding: var(--space-3) var(--space-4);
    border-top: 1px solid var(--surface-border);
}

/* Fee Head Editor */
.fee-head-editor {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.fee-head-edit-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr auto;
    gap: var(--space-2);
    align-items: center;
}

.btn-danger-icon {
    color: #dc2626;
    padding: var(--space-2);
}

.btn-danger-icon:hover {
    background: #fef2f2;
}

/* Collection Layout */
.collection-layout {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: var(--space-6);
}

@media (max-width: 1024px) {
    .collection-layout {
        grid-template-columns: 1fr;
    }
}

.search-panel {
    background: var(--surface-white);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
    height: fit-content;
}

.search-panel h3 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-4);
}

.student-search-results {
    max-height: 400px;
    overflow-y: auto;
    margin-top: var(--space-3);
}

.student-result-item {
    padding: var(--space-3);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid var(--border-light);
    margin-bottom: var(--space-2);
}

.student-result-item:hover {
    background: var(--surface-light);
    border-color: var(--color-primary);
}

.student-result-item.selected {
    background: rgba(17, 46, 103, 0.1);
    border-color: var(--color-primary);
}

.student-result-item .student-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.student-result-item .student-info strong {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-primary);
}

.student-result-item .student-info .text-muted {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.loading-state-inline {
    display: flex;
    justify-content: center;
    padding: var(--space-4);
}

.summary-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.summary-item .label {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.summary-item .value {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   Dashboard Charts & Analytics
   -------------------------------------------------------------------------- */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--space-5);
    margin-top: var(--space-5);
}

@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

.chart-container {
    background: var(--surface-white);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
}

.bar-chart {
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    height: 200px;
    gap: var(--space-2);
    padding: var(--space-4) 0;
}

.bar-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    max-width: 80px;
}

.bars {
    display: flex;
    gap: 4px;
    align-items: flex-end;
    height: 160px;
    width: 100%;
    justify-content: center;
}

.bar {
    width: 20px;
    border-radius: 4px 4px 0 0;
    transition: height 0.3s ease;
    min-height: 4px;
}

.bar-income {
    background: linear-gradient(180deg, var(--success-400), var(--success-500));
}

.bar-expense {
    background: linear-gradient(180deg, var(--danger-400), var(--danger-500));
}

.bar-label {
    font-size: var(--text-xs);
    color: var(--text-muted);
    margin-top: var(--space-2);
    text-align: center;
    white-space: nowrap;
}

.chart-legend {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    margin-top: var(--space-3);
    padding-top: var(--space-3);
    border-top: 1px solid var(--border-color);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 3px;
}

/* Class Strength List */
.class-strength-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.strength-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.strength-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.strength-class {
    font-weight: 500;
    color: var(--text-primary);
}

.strength-count {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.strength-bar {
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
}

.strength-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-400), var(--primary-500));
    border-radius: 4px;
    transition: width 0.3s ease;
}

/* Activity List */
.activity-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-3);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.activity-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    background: var(--primary-100);
    color: var(--primary-600);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.activity-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
}

.activity-text {
    font-size: var(--text-sm);
    color: var(--text-primary);
}

.activity-time {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

/* KPI Sub text */
.kpi-sub {
    font-size: var(--text-xs);
    color: var(--text-muted);
    margin-top: 2px;
}

.student-result-item:hover {
    background: var(--surface-light);
}

.student-result-item.selected {
    background: var(--color-primary);
    color: white;
}

.student-result-item.selected .text-muted {
    color: rgba(255, 255, 255, 0.7);
}

/* ============================================================================
   TIMELINE - For follow-ups and activity history
   ============================================================================ */
.timeline {
    position: relative;
    padding-left: var(--space-8);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 14px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--surface-border);
}

.timeline-item {
    position: relative;
    padding-bottom: var(--space-5);
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: calc(-1 * var(--space-8) + 6px);
    width: 20px;
    height: 20px;
    background: var(--surface-white);
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.timeline-marker i {
    font-size: 10px;
    color: var(--color-primary);
}

.timeline-content {
    background: var(--surface-white);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
}

.timeline-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-2);
}

.timeline-date {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-primary);
}

.timeline-time {
    margin-left: var(--space-2);
    color: var(--text-muted);
}

.timeline-badge {
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
}

.badge-danger {
    background: #fee2e2;
    color: #dc2626;
}

.timeline-body {
    margin-bottom: var(--space-2);
}

.timeline-contact-mode {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.timeline-notes {
    margin: var(--space-2) 0 0;
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

.timeline-next {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding-top: var(--space-2);
    border-top: 1px dashed var(--surface-border);
    font-size: var(--text-xs);
    color: var(--color-primary);
}

.timeline-empty {
    text-align: center;
    padding: var(--space-8);
    color: var(--text-muted);
}

.timeline-empty i {
    font-size: 2rem;
    display: block;
    margin-bottom: var(--space-2);
}

.timeline-compact .timeline-content {
    padding: var(--space-3);
}

.timeline-compact .timeline-item {
    padding-bottom: var(--space-3);
}

/* ============================================================================
   PERSON INFO CARD - For contact/person display
   ============================================================================ */
.person-card {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--surface-white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--surface-border);
}

.person-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-semibold);
    font-size: var(--text-lg);
    flex-shrink: 0;
}

.person-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.avatar-primary {
    background: #dbeafe;
    color: #1e40af;
}

.avatar-success {
    background: #dcfce7;
    color: #166534;
}

.avatar-warning {
    background: #fef3c7;
    color: #92400e;
}

.person-info {
    flex: 1;
    min-width: 0;
}

.person-name {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin: 0 0 var(--space-1);
}

.person-subtitle {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin: 0 0 var(--space-2);
}

.person-contacts {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-bottom: var(--space-2);
}

.person-contact {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.person-contact:hover {
    color: var(--color-primary);
}

.person-whatsapp:hover {
    color: #25d366;
}

.person-address {
    display: flex;
    align-items: flex-start;
    gap: var(--space-1);
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin: 0;
}

.person-card-compact {
    padding: var(--space-3);
}

.person-card-compact .person-avatar {
    width: 40px;
    height: 40px;
    font-size: var(--text-sm);
}

/* ============================================================================
   DETAIL LAYOUT - For detail pages with sidebar
   ============================================================================ */
.detail-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: var(--space-6);
}

@media (max-width: 1024px) {
    .detail-layout {
        grid-template-columns: 1fr;
    }
}

.detail-main {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.detail-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--space-4);
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.detail-label {
    font-size: var(--text-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.detail-value {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-primary);
}

/* Enquiry Status Header */
.enquiry-status-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4);
}

.enquiry-no {
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    color: var(--text-primary);
}

.enquiry-date {
    margin-left: var(--space-3);
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.status-workflow {
    padding-top: var(--space-4);
    border-top: 1px solid var(--surface-border);
}

.status-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-2);
}

/* Card Header with Action */
.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--surface-border);
}

.card-header h3 {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin: 0;
}

.card-header h3 i {
    color: var(--text-muted);
}

/* Form Section Title */
.form-section-title {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: var(--space-4) 0 var(--space-3);
    padding-bottom: var(--space-2);
    border-bottom: 1px solid var(--surface-border);
}

.form-section-title:first-child {
    margin-top: 0;
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-2);
}

.breadcrumb a {
    color: var(--color-primary);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

/* ============================================================================
   MODULE GRID - For feature cards on index pages
   ============================================================================ */
.module-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.module-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: white;
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
    border: 1px solid #e5e7eb;
}

.module-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    border-color: var(--color-primary);
}

.module-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #e0e7ff, #c7d2fe);
    color: var(--color-primary);
    border-radius: 16px;
    flex-shrink: 0;
}

.module-content {
    flex: 1;
    min-width: 0;
}

.module-content h3 {
    font-size: 1rem;
    font-weight: 600;
    margin: 0 0 0.25rem;
    color: #111827;
}

.module-content p {
    font-size: 0.875rem;
    color: #6b7280;
    margin: 0;
}

.module-arrow {
    color: #9ca3af;
    flex-shrink: 0;
}

.module-card:hover .module-arrow {
    color: var(--color-primary);
}

@media (max-width: 768px) {
    .module-grid {
        grid-template-columns: 1fr;
    }

    .module-card {
        padding: 1rem;
    }

    .module-icon {
        width: 48px;
        height: 48px;
    }
}

.student-info strong {
    display: block;
    font-size: var(--text-sm);
}

.student-info .text-muted {
    font-size: var(--text-xs);
}

.fee-details-panel {
    background: var(--surface-white);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
}

.student-header-card {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--surface-light);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-4);
}

.student-avatar {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: white;
}

.student-details h3 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    margin: 0 0 var(--space-1);
}

.student-details p {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin: 0;
}

.outstanding-badge {
    margin-left: auto;
    text-align: right;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-lg);
}

.outstanding-badge.has-dues {
    background: #fef2f2;
}

.outstanding-badge.no-dues {
    background: #f0fdf4;
}

.outstanding-badge .label {
    display: block;
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.outstanding-badge.has-dues .amount {
    color: #dc2626;
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
}

.outstanding-badge.no-dues .amount {
    color: #16a34a;
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
}

.ledger-section {
    margin-bottom: var(--space-4);
}

.ledger-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-3);
}

.ledger-header h4 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    margin: 0;
}

.ledger-table-container {
    max-height: 350px;
    overflow-y: auto;
}

.row-paid {
    background: #f0fdf4;
    opacity: 0.7;
}

.text-danger {
    color: #dc2626 !important;
}

.text-success {
    color: #16a34a !important;
}

.collection-form {
    background: var(--surface-light);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
}

.collection-form h4 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-4);
}

.collection-summary {
    display: flex;
    gap: var(--space-6);
    margin-bottom: var(--space-4);
}

.form-actions {
    margin-top: var(--space-4);
    display: flex;
    gap: var(--space-3);
}

/* Generate Container */
.generate-container {
    max-width: 500px;
    margin: 0 auto;
}

.generate-card {
    background: var(--surface-white);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.generate-icon {
    margin-bottom: var(--space-4);
    color: var(--color-primary);
}

.generate-card h3 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-2);
}

.btn-lg {
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-base);
}

/* Summary Cards */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

.summary-card {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    background: var(--surface-white);
    border-radius: var(--radius-xl);
    padding: var(--space-4);
    box-shadow: var(--shadow-sm);
}

.summary-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #dbeafe;
    color: #1e40af;
    border-radius: var(--radius-lg);
}

.summary-icon.warning {
    background: #fef3c7;
    color: #92400e;
}

.summary-icon.danger {
    background: #fef2f2;
    color: #dc2626;
}

.summary-value {
    display: block;
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
}

.summary-label {
    display: block;
    font-size: var(--text-sm);
    color: var(--text-muted);
}

/* Receipt */
.receipt-container {
    max-width: 500px;
    margin: 0 auto;
    background: white;
    border: 1px solid var(--surface-border);
    padding: var(--space-6);
}

.receipt-header {
    text-align: center;
    border-bottom: 2px solid var(--text-primary);
    padding-bottom: var(--space-4);
    margin-bottom: var(--space-4);
}

.receipt-header h3 {
    font-size: var(--text-xl);
    margin: 0;
}

.receipt-header p {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.receipt-info,
.receipt-student {
    margin-bottom: var(--space-4);
}

.receipt-row {
    display: flex;
    justify-content: space-between;
    padding: var(--space-1) 0;
    font-size: var(--text-sm);
}

.receipt-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-4) 0;
}

.receipt-table th,
.receipt-table td {
    padding: var(--space-2);
    border: 1px solid var(--surface-border);
    text-align: left;
    font-size: var(--text-sm);
}

.receipt-table th {
    background: var(--surface-light);
}

.receipt-table tfoot td {
    font-weight: var(--font-bold);
    background: var(--surface-light);
}

.receipt-amount-words {
    padding: var(--space-3);
    background: var(--surface-light);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    margin-bottom: var(--space-4);
}

.receipt-payment {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

/* Inline Loading */
.loading-state-inline {
    display: flex;
    justify-content: center;
    padding: var(--space-4);
}

/* Alert Styles */
.alert-success {
    background: #f0fdf4;
    border: 1px solid #86efac;
    color: #166534;
}

/* Form Section Header */
.form-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-3);
}

.form-section-header h4 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    margin: 0;
}

/* Modal Large */
.modal-lg {
    max-width: 700px;
}

/* --------------------------------------------------------------------------
   Pagination
   -------------------------------------------------------------------------- */
.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-3) var(--space-4);
    background: var(--surface-light);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    border-bottom: 1px solid var(--surface-border);
}

.pagination-top {
    margin-bottom: 0;
}

.pagination-buttons {
    display: flex;
    gap: var(--space-2);
}

.pagination-info,
.page-info {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}