/**
 * ĐKHP Web - Light Theme Styles
 * Modern, clean design with light background
 */

/* ==================== CSS Variables ==================== */
:root {
    /* Colors - Light Theme */
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #dbeafe;
    --secondary: #64748b;
    --success: #22c55e;
    --success-bg: #dcfce7;
    --warning: #f59e0b;
    --warning-bg: #fef3c7;
    --danger: #ef4444;
    --danger-bg: #fee2e2;
    --info: #3b82f6;
    --info-bg: #dbeafe;

    /* Backgrounds */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-hover: #e2e8f0;

    /* Text */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;

    /* Borders */
    --border-color: #e2e8f0;
    --border-focus: #2563eb;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);

    /* Spacing */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ==================== Reset ==================== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    -webkit-font-smoothing: antialiased;
}

/* ==================== Pages ==================== */
.page {
    display: none;
    min-height: 100vh;
}

.page.active {
    display: block;
}

#app {
    min-height: 100vh;
}

/* ==================== Login Page ==================== */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-header .logo {
    margin-bottom: 16px;
}

.login-header h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 15px;
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-form label {
    display: block;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.login-form input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 15px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.login-form input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.password-input {
    position: relative;
}

.password-input input {
    padding-right: 48px;
}

.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
}

.error-message {
    color: var(--danger);
    font-size: 13px;
    margin-top: 12px;
    text-align: center;
}

.hidden {
    display: none !important;
}

/* ==================== Buttons ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-hover);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
}

.btn-outline:hover:not(:disabled) {
    background: var(--primary-light);
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover:not(:disabled) {
    background: var(--bg-hover);
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.btn-group {
    display: flex;
    gap: 8px;
}

.btn-loader {
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ==================== Header ==================== */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
}

.version-badge {
    font-size: 11px;
    font-weight: 600;
    padding: 2px 8px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 9999px;
}

.header-center {
    display: flex;
    align-items: center;
}

.global-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.control-group label {
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 13px;
}

.input-sm {
    width: 80px;
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 13px;
}

.input-sm:focus {
    outline: none;
    border-color: var(--primary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.student-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.student-name {
    font-weight: 600;
    color: var(--text-primary);
}

.student-id {
    font-size: 12px;
    color: var(--text-secondary);
}

/* ==================== Main Content ==================== */
.main-content {
    padding: 24px;
    max-width: 1400px;
    margin: 0 auto;
}

/* ==================== Tab Navigation ==================== */
.tab-nav {
    display: flex;
    gap: 4px;
    background: var(--bg-primary);
    padding: 8px;
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
    flex-wrap: wrap;
}

.tab-btn {
    padding: 10px 16px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.tab-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.tab-btn.active {
    background: var(--primary);
    color: white;
}

/* ==================== Tab Contents ==================== */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tab-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.tab-header h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.tab-actions {
    display: flex;
    gap: 8px;
}

/* ==================== Cards ==================== */
.card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.card h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

/* ==================== Forms ==================== */
.form-row {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.form-group {
    flex: 1;
    min-width: 200px;
}

.form-group.flex-2 {
    flex: 2;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-size: 13px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    background: var(--bg-primary);
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group textarea {
    resize: vertical;
    font-family: inherit;
}

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 400;
    cursor: pointer;
    margin-bottom: 0;
}

.checkbox-group input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary);
}

/* ==================== Tables ==================== */
.table-wrapper {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.data-table th,
.data-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    white-space: nowrap;
}

.data-table tbody tr:hover {
    background: var(--bg-secondary);
    cursor: pointer;
}

.data-table input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary);
}

.text-success {
    color: var(--success);
}

.text-danger {
    color: var(--danger);
}

.tables-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 20px;
}

/* ==================== Log Container ==================== */
.log-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.log-header h3 {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.log-container {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 12px;
    max-height: 300px;
    overflow-y: auto;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 12px;
}

.log-entry {
    padding: 6px 8px;
    border-radius: 4px;
    margin-bottom: 4px;
}

.log-entry:last-child {
    margin-bottom: 0;
}

.log-time {
    color: var(--text-muted);
    margin-right: 8px;
}

.log-info .log-message {
    color: var(--text-primary);
}

.log-success {
    background: var(--success-bg);
}

.log-success .log-message {
    color: var(--success);
    font-weight: 500;
}

.log-error {
    background: var(--danger-bg);
}

.log-error .log-message {
    color: var(--danger);
}

.log-warning {
    background: var(--warning-bg);
}

.log-warning .log-message {
    color: var(--warning);
}

/* ==================== Status Bar ==================== */
.status-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 24px;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    font-size: 12px;
    color: var(--text-secondary);
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
}

/* ==================== Toast ==================== */
#toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--info);
    transform: translateX(120%);
    transition: transform 0.3s ease;
}

.toast.show {
    transform: translateX(0);
}

.toast-success {
    border-left-color: var(--success);
}

.toast-error {
    border-left-color: var(--danger);
}

.toast-warning {
    border-left-color: var(--warning);
}

.toast-icon {
    font-size: 18px;
}

.toast-success .toast-icon {
    color: var(--success);
}

.toast-error .toast-icon {
    color: var(--danger);
}

.toast-message {
    font-size: 14px;
    color: var(--text-primary);
}

/* ==================== Responsive ==================== */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 12px;
        padding: 12px 16px;
    }

    .header-center {
        order: -1;
    }

    .main-content {
        padding: 16px;
        padding-bottom: 60px;
    }

    .tab-nav {
        padding: 6px;
    }

    .tab-btn {
        padding: 8px 12px;
        font-size: 12px;
    }

    .form-row {
        flex-direction: column;
    }

    .form-group {
        min-width: 100%;
    }

    .tables-container {
        grid-template-columns: 1fr;
    }

    .login-card {
        padding: 24px;
    }
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* ==================== Modal ==================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.modal.show {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 800px;
    max-height: 80vh;
    margin-right: 8px;
}

.log-info .log-message {
    color: var(--text-primary);
}

.log-success {
    background: var(--success-bg);
}

.log-success .log-message {
    color: var(--success);
    font-weight: 500;
}

.log-error {
    background: var(--danger-bg);
}

.log-error .log-message {
    color: var(--danger);
}

.log-warning {
    background: var(--warning-bg);
}

.log-warning .log-message {
    color: var(--warning);
}

/* ==================== Status Bar ==================== */
.status-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 24px;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    font-size: 12px;
    color: var(--text-secondary);
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
}

/* ==================== Toast ==================== */
#toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--info);
    transform: translateX(120%);
    transition: transform 0.3s ease;
}

.toast.show {
    transform: translateX(0);
}

.toast-success {
    border-left-color: var(--success);
}

.toast-error {
    border-left-color: var(--danger);
}

.toast-warning {
    border-left-color: var(--warning);
}

.toast-icon {
    font-size: 18px;
}

.toast-success .toast-icon {
    color: var(--success);
}

.toast-error .toast-icon {
    color: var(--danger);
}

.toast-message {
    font-size: 14px;
    color: var(--text-primary);
}

/* ==================== Responsive ==================== */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 12px;
        padding: 12px 16px;
    }

    .header-center {
        order: -1;
    }

    .main-content {
        padding: 16px;
        padding-bottom: 60px;
    }

    .tab-nav {
        padding: 6px;
    }

    .tab-btn {
        padding: 8px 12px;
        font-size: 12px;
    }

    .form-row {
        flex-direction: column;
    }

    .form-group {
        min-width: 100%;
    }

    .tables-container {
        grid-template-columns: 1fr;
    }

    .login-card {
        padding: 24px;
    }
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* ==================== Modal ==================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.modal.show {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 800px;
    max-height: 80vh;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    background: #fff;
    border-left: 4px solid #00897b;
}

.modal-header h2 {
    font-size: 18px;
    font-weight: 700;
    color: #00897b;
    margin: 0;
}

.modal-body {
    padding: 20px;
    overflow-y: auto;
    max-height: calc(80vh - 60px);
    background: #f8f9fa;
}

.modal-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    background: #fff;
}

/* Schedule Detail Styles */
.schedule-item {
    background-color: #fff9c4;
    /* Light yellow background */
    border: 1px solid #fbc02d;
    border-radius: 4px;
    padding: 15px;
    margin-bottom: 15px;
}

.schedule-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 14px;
}

.schedule-row strong {
    color: #333;
    min-width: 80px;
}

.detail-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 20px;
    background: #fff;
    padding: 15px;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.info-group label {
    font-weight: 600;
    color: #555;
    margin-right: 8px;
}

.info-group span {
    color: #00897b;
    font-weight: 500;
}

/* Schedule Summary */
.schedule-summary {
    margin-bottom: 16px;
    padding: 12px 16px;
    background: var(--primary-light);
    border-radius: var(--radius-md);
    color: var(--primary);
    font-weight: 500;
}

.schedule-summary:empty {
    display: none;
}
/* Muted text */
.text-muted {
    color: var(--text-muted);
    font-size: 13px;
}

/* ==================== Responsive ==================== */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 12px;
        padding: 12px 16px;
    }

    .header-center {
        order: -1;
    }

    .main-content {
        padding: 16px;
        padding-bottom: 60px;
    }

    .tab-nav {
        padding: 6px;
    }

    .tab-btn {
        padding: 8px 12px;
        font-size: 12px;
    }

    .form-row {
        flex-direction: column;
    }

    .form-group {
        min-width: 100%;
    }

    .tables-container {
        grid-template-columns: 1fr;
    }

    .login-card {
        padding: 24px;
    }
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* ==================== Modal ==================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.modal.show {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 800px;
    max-height: 80vh;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    background: #fff;
    border-left: 4px solid #00897b;
}

.modal-header h2 {
    font-size: 18px;
    font-weight: 700;
    color: #00897b;
    margin: 0;
}

.modal-body {
    padding: 20px;
    overflow-y: auto;
    max-height: calc(80vh - 60px);
    background: #f8f9fa;
}

.modal-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    background: #fff;
}

/* Schedule Detail Styles */
.schedule-item {
    background-color: #fff9c4;
    border: 1px solid #fbc02d;
    border-radius: 4px;
    padding: 15px;
    margin-bottom: 15px;
}

.schedule-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 14px;
}

.schedule-row strong {
    color: #333;
    min-width: 80px;
}

.detail-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 20px;
    background: #fff;
    padding: 15px;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.info-group label {
    font-weight: 600;
    color: #555;
    margin-right: 8px;
}

.info-group span {
    color: #00897b;
    font-weight: 500;
}

/* ==================== Schedule Grid ==================== */
.schedule-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    padding: 10px 0;
}

.day-group {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    overflow: hidden;
    height: fit-content;
}

.day-group .card-header {
    padding: 12px 16px;
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    margin: 0;
}

.schedule-item-row {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s;
}

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

.schedule-item-row:hover {
    background-color: var(--bg-secondary);
}

/* ==================== Expand Row (Accordion) ==================== */
.expand-row {
    background: var(--bg-tertiary);
}

.expand-row:hover {
    background: var(--bg-tertiary) !important;
    cursor: default;
}

.expand-cell {
    padding: 0 !important;
    border-bottom: 2px solid var(--primary);
}

.expand-content {
    padding: 16px 20px;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.expand-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.expand-header strong {
    font-size: 14px;
    color: var(--text-primary);
}

.expand-header .badge {
    background: var(--primary);
    color: white;
    padding: 4px 10px;
    border-radius: 9999px;
    font-size: 12px;
    font-weight: 500;
}

/* Inline Classes Table */
.inline-classes-table {
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.inline-classes-table th {
    background: var(--primary-light);
    color: var(--primary);
    font-size: 12px;
    padding: 10px 12px;
}

.inline-classes-table td {
    font-size: 13px;
    padding: 10px 12px;
}

.inline-classes-table tbody tr:hover {
    background: var(--bg-secondary);
}

/* Button with loading icon */
.btn-outline[id^="btn-view-"] {
    min-width: 90px;
    transition: all 0.2s;
}