/* ==========================================================================
   AI Innovation Hub - Accessible Design System for Adults & Seniors (45+)
   ========================================================================== */

:root {
    /* Color Palette (Warm, Trustworthy, High Readability) */
    --primary-color: #1e40af;       /* Royal Blue */
    --primary-hover: #1d4ed8;
    --primary-light: #eff6ff;
    --secondary-color: #0d9488;     /* Deep Teal */
    --secondary-hover: #0f766e;
    
    --accent-color: #d97706;        /* Warm Amber */
    --accent-hover: #b45309;
    
    --success-color: #15803d;      /* Forest Green */
    --danger-color: #b91c1c;       /* Crimson Red */
    --warning-color: #c2410c;      /* Rust Orange */
    
    --bg-page: #f8fafc;
    --bg-card: #ffffff;
    --bg-header: #ffffff;
    --bg-footer: #0f172a;
    
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --text-inverse: #ffffff;
    
    --border-color: #cbd5e1;
    --border-focus: #2563eb;
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.12);
    
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    
    /* Dynamic Font Scale Multiplier */
    --font-scale: 1.0;
    
    --font-family-title: 'Prompt', -apple-system, sans-serif;
    --font-family-body: 'Sarabun', -apple-system, sans-serif;
}

/* ================= Dark Theme ================= */
[data-theme="dark"] {
    --primary-color: #3b82f6;
    --primary-hover: #60a5fa;
    --primary-light: #1e293b;
    --secondary-color: #14b8a6;
    
    --bg-page: #0f172a;
    --bg-card: #1e293b;
    --bg-header: #1e293b;
    --bg-footer: #020617;
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    --border-color: #334155;
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
}

/* ================= High Contrast Theme (for Seniors / Low Vision) ================= */
[data-theme="high-contrast"] {
    --primary-color: #ffff00;       /* Bright Yellow */
    --primary-hover: #e6e600;
    --primary-light: #333300;
    --secondary-color: #00ffff;     /* Cyan */
    
    --bg-page: #000000;
    --bg-card: #121212;
    --bg-header: #1a1a1a;
    --bg-footer: #000000;
    
    --text-primary: #ffffff;
    --text-secondary: #f0f0f0;
    --text-muted: #cccccc;
    --text-inverse: #000000;
    
    --border-color: #ffffff;
    --border-focus: #ffff00;
    
    --shadow-md: 0 0 0 2px #ffffff;
}

/* Font Size Scales */
[data-font-size="small"] { --font-scale: 0.92; }
[data-font-size="medium"] { --font-scale: 1.05; }
[data-font-size="large"] { --font-scale: 1.22; }

/* Global Reset */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: calc(16px * var(--font-scale));
}

body {
    font-family: var(--font-family-body);
    background-color: var(--bg-page);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    width: 92%;
    max-width: 1240px;
    margin: 0 auto;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-title);
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

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

/* ================= Buttons ================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-family-title);
    font-size: 1rem;
    font-weight: 600;
    padding: 0.7rem 1.4rem;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    white-space: nowrap;
}

.btn-large {
    font-size: 1.15rem;
    padding: 0.85rem 1.8rem;
    border-radius: var(--radius-md);
}

.btn-sm {
    font-size: 0.9rem;
    padding: 0.4rem 0.8rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--text-inverse);
}
.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(30, 64, 175, 0.25);
}

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

.btn-admin {
    background-color: #0f172a;
    color: #f8fafc;
    border: 2px solid #334155;
}
.btn-admin:hover {
    background-color: #1e293b;
    border-color: var(--primary-color);
}

.btn-success {
    background-color: var(--success-color);
    color: #ffffff;
}
.btn-success:hover {
    background-color: #166534;
}

.btn-warning {
    background-color: var(--warning-color);
    color: #ffffff;
}

.btn-text {
    background: none;
    border: none;
    color: var(--primary-color);
    font-family: var(--font-family-title);
    font-weight: 600;
    cursor: pointer;
    text-decoration: underline;
    font-size: 1rem;
}

/* ================= Accessibility Bar ================= */
.access-bar {
    background-color: #0f172a;
    color: #f8fafc;
    padding: 0.5rem 0;
    font-size: 0.9rem;
    border-bottom: 1px solid #334155;
}

.access-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.access-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.access-label {
    color: #cbd5e1;
    font-weight: 500;
}

.access-btn {
    background: #1e293b;
    color: #ffffff;
    border: 1px solid #475569;
    padding: 0.25rem 0.65rem;
    border-radius: 6px;
    font-size: 0.85rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}
.access-btn:hover {
    background: #334155;
    border-color: var(--primary-color);
}

.font-size-group {
    display: flex;
    gap: 0.3rem;
    background: #1e293b;
    padding: 2px;
    border-radius: 6px;
    border: 1px solid #475569;
}

.font-btn {
    background: none;
    border: none;
    color: #cbd5e1;
    padding: 0.2rem 0.6rem;
    font-weight: bold;
    border-radius: 4px;
    cursor: pointer;
}

.font-btn.active, .font-btn:hover {
    background: var(--primary-color);
    color: #ffffff;
}

/* ================= Main Header ================= */
.main-header {
    background-color: var(--bg-header);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 0;
    gap: 1rem;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--text-primary);
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #ffffff;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-family: var(--font-family-title);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

.brand-sub {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.main-nav {
    display: flex;
    gap: 1.5rem;
}

.nav-link {
    font-family: var(--font-family-title);
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--primary-color);
    background-color: var(--primary-light);
}

/* Notice Banner */
.welcome-notice {
    background-color: #fffbebf5;
    border-bottom: 1px solid #fef3c7;
    color: #92400e;
    padding: 0.6rem 0;
    font-size: 0.95rem;
}
[data-theme="dark"] .welcome-notice {
    background-color: #451a03;
    border-color: #78350f;
    color: #fef3c7;
}

.notice-content {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}
.notice-icon {
    font-size: 1.2rem;
    color: var(--accent-color);
}

/* ================= Hero Section ================= */
.hero-section {
    padding: 3rem 0;
    background: linear-gradient(180deg, var(--primary-light) 0%, var(--bg-page) 100%);
    border-bottom: 1px solid var(--border-color);
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 2.5rem;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background-color: var(--secondary-color);
    color: #ffffff;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
    margin-bottom: 1rem;
}

.hero-title {
    font-size: 2.4rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.hero-title .highlight {
    color: var(--primary-color);
    position: relative;
    display: inline-block;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 1.8rem;
}

.hero-stats {
    display: flex;
    gap: 2rem;
}

.stat-box {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: var(--font-family-title);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* Hero Search Card */
.hero-search-card {
    background-color: var(--bg-card);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--border-color);
}

.hero-search-card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.4rem;
    color: var(--primary-color);
}

.hero-search-card p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1.2rem;
}

.search-box-large {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.search-box-large input {
    width: 100%;
    padding: 0.9rem 1.2rem;
    font-size: 1.1rem;
    font-family: var(--font-family-body);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    background-color: var(--bg-page);
    color: var(--text-primary);
    outline: none;
}

.search-box-large input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.15);
}

/* ================= Main Content Showcase ================= */
.main-content {
    padding: 3rem 0;
}

.category-header h2 {
    font-size: 1.75rem;
    margin-bottom: 1.2rem;
}

.category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.cat-btn {
    background-color: var(--bg-card);
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
    padding: 0.7rem 1.2rem;
    font-size: 1.05rem;
    font-family: var(--font-family-title);
    font-weight: 500;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.cat-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.cat-btn.active {
    background-color: var(--primary-color);
    color: var(--text-inverse);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.filter-status {
    background-color: var(--primary-light);
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.05rem;
}

/* ================= Project Cards Grid ================= */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 2rem;
}

.project-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    border: 2px solid var(--border-color);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.card-image-wrap {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
    background-color: #e2e8f0;
}

.card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.project-card:hover .card-image {
    transform: scale(1.04);
}

.category-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    background-color: rgba(15, 23, 42, 0.85);
    color: #ffffff;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
    backdrop-filter: blur(4px);
}

.card-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card-title {
    font-size: 1.35rem;
    margin-bottom: 0.6rem;
    color: var(--text-primary);
    line-height: 1.35;
}

.card-description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 1.2rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.5;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1.4rem;
    margin-top: auto;
}

.ai-tag {
    background-color: var(--primary-light);
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.2rem 0.6rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.card-actions {
    display: flex;
    gap: 0.8rem;
}

.card-actions .btn {
    flex: 1;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 1rem;
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 2px dashed var(--border-color);
}

.empty-icon {
    font-size: 3.5rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.empty-state h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.empty-state p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* ================= Guide Section ================= */
.guide-section {
    background-color: var(--primary-light);
    padding: 4rem 0;
    border-top: 1px solid var(--border-color);
}

.section-title {
    margin-bottom: 3rem;
}
.section-title.text-center {
    text-align: center;
}

.section-title h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.section-title p {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.step-card {
    background-color: var(--bg-card);
    padding: 2rem;
    border-radius: var(--radius-md);
    border: 2px solid var(--border-color);
    position: relative;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.step-num {
    position: absolute;
    top: -15px;
    left: 20px;
    width: 36px;
    height: 36px;
    background-color: var(--accent-color);
    color: #ffffff;
    border-radius: 50%;
    font-family: var(--font-family-title);
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.step-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.6rem;
}

.step-card p {
    font-size: 1.05rem;
    color: var(--text-secondary);
}

/* ================= Footer ================= */
.main-footer {
    background-color: var(--bg-footer);
    color: #94a3b8;
    padding-top: 3.5rem;
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 3rem;
    padding-bottom: 3rem;
}

.footer-brand .brand-logo {
    margin-bottom: 1rem;
}

.brand-logo.light span {
    color: #ffffff;
    font-size: 1.4rem;
    font-weight: 700;
}

.footer-brand p {
    font-size: 1rem;
    line-height: 1.6;
}

.footer-links h4, .footer-contact h4 {
    color: #ffffff;
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.6rem;
}

.footer-links a {
    color: #cbd5e1;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-links a:hover {
    color: #ffffff;
}

.footer-contact p {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.95rem;
}

.footer-bottom {
    background-color: rgba(0, 0, 0, 0.4);
    padding: 1.2rem 0;
    text-align: center;
    font-size: 0.95rem;
    border-top: 1px solid #1e293b;
}

/* ================= MODALS ================= */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
    padding: 1rem;
}

.modal-backdrop.active {
    opacity: 1;
    visibility: visible;
}

.modal-box {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 2px solid var(--border-color);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    transform: translateY(20px);
    transition: transform 0.25s ease;
}

.modal-backdrop.active .modal-box {
    transform: translateY(0);
}

.modal-large {
    max-width: 720px;
}

.modal-xlarge {
    max-width: 960px;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 20px;
    background: var(--bg-page);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1.8rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
}
.modal-close:hover {
    background-color: var(--danger-color);
    color: #ffffff;
    border-color: var(--danger-color);
}

.modal-body {
    padding: 2rem;
}

/* Detail Modal Styles */
.detail-header {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    margin-bottom: 1.5rem;
}

.detail-img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: 1.2rem;
}

.detail-title {
    font-size: 1.8rem;
    line-height: 1.3;
}

.detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    color: var(--text-muted);
}

.detail-section {
    margin-bottom: 1.5rem;
}

.detail-section h4 {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 0.6rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.detail-section p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.instructions-box {
    background-color: var(--primary-light);
    border-left: 4px solid var(--primary-color);
    padding: 1rem 1.2rem;
    border-radius: var(--radius-sm);
    font-size: 1.05rem;
}

.modal-action-bar {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

/* ================= Admin Drawer / Modal ================= */
.admin-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--primary-light);
}

.admin-header h2 {
    font-size: 1.5rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.admin-tab-bar {
    display: flex;
    gap: 0.5rem;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.admin-tab {
    background: none;
    border: none;
    padding: 0.8rem 1.4rem;
    font-family: var(--font-family-title);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.2s ease;
}

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

/* Admin Form Grid */
.admin-form {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.form-banner {
    background-color: var(--primary-light);
    color: var(--primary-color);
    padding: 0.8rem 1.2rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-family-title);
    font-weight: 600;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group.full-width {
    grid-column: span 2;
}

.form-group label {
    font-family: var(--font-family-title);
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--text-primary);
}

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

.form-group input, 
.form-group select, 
.form-group textarea {
    padding: 0.8rem 1rem;
    font-family: var(--font-family-body);
    font-size: 1.05rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    background-color: var(--bg-page);
    color: var(--text-primary);
    outline: none;
}

.form-group input:focus, 
.form-group select:focus, 
.form-group textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.15);
}

.input-with-icon {
    position: relative;
    display: flex;
    align-items: center;
}

.input-with-icon i {
    position: absolute;
    left: 14px;
    color: var(--text-muted);
    font-size: 1.1rem;
}

.input-with-icon input {
    padding-left: 2.6rem;
    width: 100%;
}

.form-hint {
    font-size: 0.88rem;
    color: var(--text-muted);
}

.image-upload-wrapper {
    display: flex;
    gap: 0.8rem;
    align-items: center;
}

.btn-upload {
    white-space: nowrap;
    padding: 0.8rem 1.2rem;
    font-size: 1rem;
    cursor: pointer;
    margin: 0;
}

.image-preview-box {
    position: relative;
    margin-top: 0.8rem;
    width: 100%;
    max-width: 280px;
    height: 160px;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 2px solid var(--border-color);
    background-color: var(--bg-page);
}

.image-preview-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.btn-remove-img {
    position: absolute;
    top: 8px;
    right: 8px;
    background-color: rgba(185, 28, 28, 0.9);
    color: #ffffff;
    border: none;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.btn-remove-img:hover {
    background-color: #dc2626;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

/* Table Management */
.table-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.table-title {
    font-family: var(--font-family-title);
    font-weight: 600;
    font-size: 1.1rem;
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 1rem;
}

.admin-table th, .admin-table td {
    padding: 0.9rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.admin-table th {
    background-color: var(--primary-light);
    font-family: var(--font-family-title);
    font-weight: 600;
    color: var(--text-primary);
}

.table-thumb {
    width: 60px;
    height: 45px;
    object-fit: cover;
    border-radius: 6px;
}

.table-link {
    font-size: 0.85rem;
    color: var(--text-muted);
    word-break: break-all;
}

.table-actions-cell {
    display: flex;
    justify-content: center;
    gap: 0.4rem;
}

.btn-icon {
    width: 36px;
    height: 36px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.btn-icon-edit {
    background-color: #e0f2fe;
    color: #0369a1;
}
.btn-icon-edit:hover {
    background-color: #0284c7;
    color: #ffffff;
}

.btn-icon-delete {
    background-color: #fee2e2;
    color: #b91c1c;
}
.btn-icon-delete:hover {
    background-color: #dc2626;
    color: #ffffff;
}

/* ================= Notification Toast ================= */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #0f172a;
    color: #ffffff;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-family: var(--font-family-title);
    font-size: 1.05rem;
    z-index: 2000;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.27, 1.55);
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast-icon {
    font-size: 1.4rem;
    color: #22c55e;
}

/* ================= Responsive Adjustments ================= */
@media (max-width: 900px) {
    .hero-container {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .form-group.full-width {
        grid-column: span 1;
    }
}

@media (max-width: 600px) {
    .header-container {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .main-nav {
        overflow-x: auto;
        width: 100%;
        padding-bottom: 0.4rem;
    }

    .access-container {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .project-grid {
        grid-template-columns: 1fr;
    }
}