/**
 * One RT Plus Service - Main Styles
 * Modern glassmorphism design with animations
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Noto+Sans+Thai:wght@300;400;500;600;700&display=swap');

/* ===========================
   LAYOUT STRUCTURE
   =========================== */
.app-layout {
    display: flex;
    min-height: 100vh;
}

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

.sidebar-header {
    padding: var(--spacing-6);
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.sidebar-logo {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #fff 0%, #e0e7ff 100%);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-primary);
}

.sidebar-title {
    color: var(--text-inverse);
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.sidebar-subtitle {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-xs);
}

.sidebar-nav {
    flex: 1;
    padding: var(--spacing-4);
    overflow-y: auto;
}

.nav-section {
    margin-bottom: var(--spacing-6);
}

.nav-section-title {
    color: rgba(255, 255, 255, 0.4);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--spacing-2) var(--spacing-4);
    margin-bottom: var(--spacing-2);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--radius-lg);
    color: rgba(255, 255, 255, 0.7);
    transition: all var(--transition-fast);
    margin-bottom: var(--spacing-1);
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-inverse);
}

.nav-item.active {
    background: rgba(255, 255, 255, 0.15);
    color: var(--text-inverse);
    font-weight: 500;
}

.nav-item-icon {
    width: 20px;
    height: 20px;
    opacity: 0.8;
}

.nav-item-badge {
    margin-left: auto;
    background: var(--color-danger);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.sidebar-footer {
    padding: var(--spacing-4);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
}

.user-avatar {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-secondary));
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
}

.user-info {
    flex: 1;
}

.user-name {
    color: var(--text-inverse);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.user-role {
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--font-size-xs);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.main-header {
    height: var(--header-height);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-8);
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

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

.sidebar-toggle {
    display: none;
}

.main-container {
    padding: var(--spacing-8);
    max-width: var(--content-max-width);
    margin: 0 auto;
}

/* ===========================
   CARDS
   =========================== */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-normal);
}

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

.card-glass {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
}

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

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.card-body {
    padding: var(--spacing-6);
}

.card-footer {
    padding: var(--spacing-4) var(--spacing-6);
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border-color);
}

/* Course Card */
.course-card {
    position: relative;
    display: flex;
    flex-direction: column;
}

.course-card-image {
    height: 160px;
    background: var(--color-primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-4xl);
    position: relative;
    overflow: hidden;
}

.course-card-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.3), transparent);
}

.course-card-badge {
    position: absolute;
    top: var(--spacing-3);
    right: var(--spacing-3);
    background: rgba(0, 0, 0, 0.5);
    color: white;
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.course-card-body {
    padding: var(--spacing-5);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.course-card-category {
    color: var(--color-primary);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-2);
}

.course-card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-3);
    line-height: var(--line-height-tight);
}

.course-card-meta {
    display: flex;
    gap: var(--spacing-4);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-top: auto;
}

.course-card-meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

/* Stats Card */
.stats-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-5);
    padding: var(--spacing-6);
}

.stats-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
}

.stats-icon.primary {
    background: linear-gradient(135deg, #eef2ff, #e0e7ff);
    color: var(--color-primary);
}

.stats-icon.success {
    background: linear-gradient(135deg, #ecfdf5, #d1fae5);
    color: var(--color-success);
}

.stats-icon.warning {
    background: linear-gradient(135deg, #fffbeb, #fef3c7);
    color: var(--color-warning);
}

.stats-icon.danger {
    background: linear-gradient(135deg, #fef2f2, #fee2e2);
    color: var(--color-danger);
}

.stats-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-primary);
}

.stats-label {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* ===========================
   BUTTONS
   =========================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--color-primary-gradient);
    color: white;
    box-shadow: 0 4px 14px rgba(79, 70, 229, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.5);
}

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

.btn-secondary:hover {
    background: var(--border-color);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}

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

.btn-success {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
}

.btn-lg {
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-base);
}

.btn-sm {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-xs);
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-lg);
}

/* ===========================
   FORMS
   =========================== */
.form-group {
    margin-bottom: var(--spacing-6);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2);
}

.form-input {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-base);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

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

.form-error {
    color: var(--color-danger);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-2);
}

/* ===========================
   BADGES & TAGS
   =========================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
}

.badge-primary {
    background: #eef2ff;
    color: var(--color-primary);
}

.badge-success {
    background: #ecfdf5;
    color: var(--color-success);
}

.badge-warning {
    background: #fffbeb;
    color: var(--color-warning);
}

.badge-danger {
    background: #fef2f2;
    color: var(--color-danger);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: var(--spacing-2);
}

.status-dot.pending {
    background: var(--color-warning);
}

.status-dot.in-progress {
    background: var(--color-info);
}

.status-dot.completed {
    background: var(--color-success);
}

.status-dot.failed {
    background: var(--color-danger);
}

/* ===========================
   ALERTS
   =========================== */
.alert {
    padding: var(--spacing-4) var(--spacing-5);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
}

.alert-success {
    background: #ecfdf5;
    color: #065f46;
    border-left: 4px solid var(--color-success);
}

.alert-danger {
    background: #fef2f2;
    color: #991b1b;
    border-left: 4px solid var(--color-danger);
}

.alert-warning {
    background: #fffbeb;
    color: #92400e;
    border-left: 4px solid var(--color-warning);
}

.alert-info {
    background: #eff6ff;
    color: #1e40af;
    border-left: 4px solid var(--color-info);
}

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

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

.table th,
.table td {
    padding: var(--spacing-4);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    background: var(--bg-tertiary);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

/* ===========================
   PROGRESS BAR
   =========================== */
.progress {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.progress-bar.primary {
    background: var(--color-primary-gradient);
}

.progress-bar.success {
    background: linear-gradient(90deg, #10b981, #34d399);
}

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

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

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.animate-fade-in {
    animation: fadeIn 0.3s ease forwards;
}

.animate-pulse {
    animation: pulse 2s infinite;
}

.animate-spin {
    animation: spin 1s linear infinite;
}

/* ===========================
   UTILITY CLASSES
   =========================== */
.text-center {
    text-align: center;
}

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

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

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

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

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

.mt-4 {
    margin-top: var(--spacing-4);
}

.mt-6 {
    margin-top: var(--spacing-6);
}

.mb-4 {
    margin-bottom: var(--spacing-4);
}

.mb-6 {
    margin-bottom: var(--spacing-6);
}

.flex {
    display: flex;
}

.flex-wrap {
    flex-wrap: wrap;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-4 {
    gap: var(--spacing-4);
}

.gap-6 {
    gap: var(--spacing-6);
}

.grid {
    display: grid;
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

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

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

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

    .sidebar-toggle {
        display: inline-flex !important;
    }

    .sidebar-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 99;
    }

    .sidebar-overlay.active {
        display: block;
    }

    .grid-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .main-header {
        padding: 0 var(--spacing-4);
    }

    .main-header>div {
        display: flex;
        align-items: center;
        gap: var(--spacing-3);
    }
}

@media (max-width: 768px) {

    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }

    .main-container {
        padding: var(--spacing-4);
    }
}