/* ============================================================
   CLA Tech — Premium Enterprise Design System
   Version: 1.0.0
   ============================================================ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Kanit:wght@300;400;500;600;700&display=swap');

/* ============================================================
   1. CSS Custom Properties (Design Tokens)
   ============================================================ */
:root {
    /* Colors */
    --color-primary-dark: #0F172A;
    --color-primary-darker: #0a0f1c;
    --color-accent-blue: #0EA5E9;
    --color-accent-blue-dark: #0284C7;
    --color-accent-blue-light: #38BDF8;
    --color-accent-green: #10B981;
    --color-accent-green-dark: #059669;
    --color-bg: #F8FAFC;
    --color-surface: #FFFFFF;
    --color-text: #0F172A;
    --color-text-muted: #64748B;
    --color-text-light: #94A3B8;
    --color-border: #E2E8F0;
    --color-border-light: #F1F5F9;
    --color-danger: #EF4444;
    --color-danger-dark: #DC2626;
    --color-warning: #F59E0B;
    --color-warning-dark: #D97706;

    /* Spacing Scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Typography */
    --font-family: 'Inter', 'Kanit', system-ui, -apple-system, sans-serif;
    --font-thai: 'Kanit', 'Inter', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 0.9375rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    --line-height: 1.6;
    --line-height-tight: 1.2;
    --line-height-snug: 1.4;

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.03);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    --shadow-glow-blue: 0 0 20px rgba(14, 165, 233, 0.3);
    --shadow-glow-blue-lg: 0 0 40px rgba(14, 165, 233, 0.25), 0 0 80px rgba(14, 165, 233, 0.1);
    --shadow-glow-green: 0 0 20px rgba(16, 185, 129, 0.3);

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Z-Index Scale */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-overlay: 400;
    --z-modal: 500;
    --z-toast: 600;

    /* Layout */
    --container-max: 1200px;
    --container-narrow: 800px;
    --navbar-height: 72px;
    --sidebar-width: 260px;
}

/* ============================================================
   2. CSS Reset & Base Styles
   ============================================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height);
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

::selection {
    background-color: rgba(14, 165, 233, 0.2);
    color: var(--color-primary-dark);
}

img, video, svg {
    display: block;
    max-width: 100%;
    height: auto;
}

a {
    color: var(--color-accent-blue);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent-blue-dark);
}

ul, ol {
    list-style: none;
}

button, input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}

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

::-webkit-scrollbar-track {
    background: var(--color-primary-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--color-accent-blue);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent-blue-light);
}

/* ============================================================
   3. Typography
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: var(--line-height-tight);
    color: var(--color-text);
    letter-spacing: -0.01em;
}

h1 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
}

h2 {
    font-size: var(--font-size-3xl);
    padding-left: var(--space-5);
    border-left: 4px solid var(--color-accent-blue);
}

h3 {
    font-size: var(--font-size-2xl);
}

h4 {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

h5 {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

h6 {
    font-size: var(--font-size-base);
    font-weight: 600;
}

p {
    margin-bottom: var(--space-4);
    color: var(--color-text-muted);
}

small,
.text-small {
    font-size: var(--font-size-sm);
}

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

.text-accent {
    color: var(--color-accent-blue) !important;
}

.text-white {
    color: #fff !important;
}

.text-success {
    color: var(--color-accent-green) !important;
}

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

/* ============================================================
   4. Layout Utilities
   ============================================================ */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.container-narrow {
    max-width: var(--container-narrow);
}

/* Flexbox */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Grid */
.grid-2,
.grid-3,
.grid-4 {
    display: grid;
    gap: var(--space-8);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ============================================================
   5. Sections
   ============================================================ */
.section {
    padding: var(--space-20) 0;
}

.section-alt {
    background-color: var(--color-border-light);
}

.section-dark {
    background-color: var(--color-primary-dark);
    color: #fff;
}

.section-dark h2,
.section-dark h3,
.section-dark h4 {
    color: #fff;
}

.section-dark p {
    color: var(--color-text-light);
}

.section-dark h2 {
    border-left-color: var(--color-accent-blue-light);
}

/* Section Title Component */
.section-title {
    margin-bottom: var(--space-12);
}

.section-title h2 {
    margin-bottom: var(--space-3);
}

.section-title .section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
    margin-bottom: 0;
    padding-left: var(--space-5);
}

.section-dark .section-title .section-subtitle {
    color: var(--color-text-light);
}

/* Section Heading with Decorative Line */
.section-heading {
    text-align: center;
    margin-bottom: var(--space-12);
    position: relative;
}

.section-heading::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent-blue), var(--color-accent-green));
    margin: var(--space-4) auto 0;
    border-radius: var(--radius-full);
}

/* ============================================================
   6. Navigation
   ============================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height);
    display: flex;
    align-items: center;
    z-index: var(--z-sticky);
    transition: background-color var(--transition-base), box-shadow var(--transition-base), backdrop-filter var(--transition-base);
    background-color: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.nav-brand {
    font-family: var(--font-family);
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: #fff !important;
    text-decoration: none;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 2px;
}

.nav-logo {
    height: 40px;
    width: auto;
    object-fit: contain;
    filter: brightness(0) invert(1);
    transition: var(--transition-base);
}

.nav-brand:hover .nav-logo {
    filter: brightness(0) invert(1) drop-shadow(0 0 6px var(--color-accent-blue));
}

.nav-brand span {
    color: var(--color-accent-blue);
}

.footer-logo {
    height: 36px;
    width: auto;
    object-fit: contain;
    filter: brightness(0) invert(1);
    margin-bottom: var(--space-3);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.nav-link {
    position: relative;
    padding: var(--space-2) var(--space-4);
    color: rgba(255, 255, 255, 0.75) !important;
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-decoration: none;
    transition: color var(--transition-fast);
    border-radius: var(--radius-md);
}

.nav-link:hover,
.nav-link.active {
    color: #fff !important;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent-blue), var(--color-accent-green));
    transition: width var(--transition-base), left var(--transition-base);
    border-radius: var(--radius-full);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 70%;
    left: 15%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-2);
    cursor: pointer;
    background: none;
    border: none;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: #fff;
    transition: transform var(--transition-base), opacity var(--transition-fast);
    border-radius: 2px;
}

/* ============================================================
   7. Hero Section
   ============================================================ */
.hero {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary-dark);
    padding: calc(var(--navbar-height) + var(--space-16)) var(--space-6) var(--space-16);
    overflow: hidden;
    text-align: center;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        repeating-linear-gradient(
            60deg,
            transparent,
            transparent 70px,
            rgba(14, 165, 233, 0.04) 70px,
            rgba(14, 165, 233, 0.04) 71px
        ),
        repeating-linear-gradient(
            -60deg,
            transparent,
            transparent 70px,
            rgba(16, 185, 129, 0.03) 70px,
            rgba(16, 185, 129, 0.03) 71px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 100px,
            rgba(14, 165, 233, 0.02) 100px,
            rgba(14, 165, 233, 0.02) 101px
        ),
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 100px,
            rgba(14, 165, 233, 0.015) 100px,
            rgba(14, 165, 233, 0.015) 101px
        );
    pointer-events: none;
    z-index: 0;
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(14, 165, 233, 0.08) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 50%, rgba(16, 185, 129, 0.06) 0%, transparent 60%),
        radial-gradient(ellipse at 50% 100%, rgba(14, 165, 233, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    animation: fadeIn 0.8s ease-out;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    color: #fff;
    margin-bottom: var(--space-6);
    line-height: var(--line-height-tight);
    letter-spacing: -0.02em;
    border-left: none;
    padding-left: 0;
}

.hero-title .highlight {
    background: linear-gradient(135deg, var(--color-accent-blue), var(--color-accent-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    margin-bottom: var(--space-10);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: var(--line-height);
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================================
   8. Buttons
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-size-sm);
    font-weight: 600;
    line-height: 1.5;
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent-blue), var(--color-accent-blue-dark));
    color: #fff !important;
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(14, 165, 233, 0.25);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-accent-blue-light), var(--color-accent-blue));
    box-shadow: 0 4px 20px rgba(14, 165, 233, 0.4);
    transform: translateY(-1px);
    color: #fff !important;
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(14, 165, 233, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--color-accent-blue) !important;
    border-color: var(--color-accent-blue);
}

.btn-outline:hover {
    background: var(--color-accent-blue);
    color: #fff !important;
    box-shadow: var(--shadow-glow-blue);
}

.btn-outline-white {
    background: transparent;
    color: #fff !important;
    border-color: rgba(255, 255, 255, 0.4);
}

.btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.8);
    color: #fff !important;
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-muted) !important;
    border-color: transparent;
}

.btn-ghost:hover {
    background: var(--color-border-light);
    color: var(--color-text) !important;
}

.btn-success {
    background: linear-gradient(135deg, var(--color-accent-green), var(--color-accent-green-dark));
    color: #fff !important;
}

.btn-success:hover {
    box-shadow: var(--shadow-glow-green);
    transform: translateY(-1px);
}

.btn-danger {
    background: linear-gradient(135deg, var(--color-danger), var(--color-danger-dark));
    color: #fff !important;
}

.btn-danger:hover {
    box-shadow: 0 0 20px rgba(239, 68, 68, 0.3);
    transform: translateY(-1px);
}

.btn-sm {
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-xs);
    border-radius: var(--radius-md);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--font-size-base);
    border-radius: var(--radius-xl);
}

/* ============================================================
   9. Cards
   ============================================================ */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(14, 165, 233, 0.15);
}

.card-image {
    overflow: hidden;
    position: relative;
    aspect-ratio: 16/10;
    background: linear-gradient(135deg, #1e293b, #0f172a);
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.card:hover .card-image img {
    transform: scale(1.05);
}

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

.card-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-3);
    color: var(--color-text);
    border-left: none;
    padding-left: 0;
}

.card-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-4);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Service Card */
.service-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    cursor: default;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent-blue), var(--color-accent-green));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.service-card:hover {
    border-color: rgba(14, 165, 233, 0.3);
    box-shadow: 0 0 30px rgba(14, 165, 233, 0.12), 0 0 60px rgba(14, 165, 233, 0.06);
    transform: translateY(-4px);
}

.service-card:hover::before {
    opacity: 1;
}

.service-card-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-4);
    display: block;
    line-height: 1;
}

.service-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--space-3);
    color: var(--color-text);
}

.service-card p {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: 0;
    line-height: var(--line-height);
}

/* Portfolio Card */
.portfolio-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.portfolio-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(14, 165, 233, 0.2);
}

.portfolio-card .card-image {
    position: relative;
}

.portfolio-card .card-image .image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.1), rgba(16, 185, 129, 0.1));
    font-size: 3rem;
}

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

.portfolio-card .tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1);
    margin-top: var(--space-3);
}

.portfolio-card .tech-badge {
    font-size: var(--font-size-xs);
    padding: 2px var(--space-2);
    background: var(--color-border-light);
    color: var(--color-text-muted);
    border-radius: var(--radius-sm);
    font-weight: 500;
}

/* News Card */
.news-card {
    display: block;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
    text-decoration: none !important;
    color: inherit !important;
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(14, 165, 233, 0.2);
    color: inherit !important;
}

.news-card .card-image {
    aspect-ratio: 16/9;
}

.news-card .card-image .image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.08), rgba(16, 185, 129, 0.08));
    font-size: 2.5rem;
}

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

.news-card .card-date {
    font-size: var(--font-size-xs);
    color: var(--color-text-light);
    margin-bottom: var(--space-2);
    display: block;
}

.news-card .card-title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-2);
}

.news-card .read-more {
    font-size: var(--font-size-sm);
    color: var(--color-accent-blue);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    margin-top: var(--space-2);
    transition: gap var(--transition-fast);
}

.news-card:hover .read-more {
    gap: var(--space-2);
}

/* ============================================================
   10. Forms
   ============================================================ */
.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-2);
}

.form-control {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background-color: var(--color-surface);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    outline: none;
}

.form-control:focus {
    border-color: var(--color-accent-blue);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

.form-control::placeholder {
    color: var(--color-text-light);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%2364748B' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3E%3C/svg%3E");
    background-position: right 0.75rem center;
    background-repeat: no-repeat;
    background-size: 1.25rem;
    padding-right: var(--space-10);
}

.form-text {
    font-size: var(--font-size-xs);
    color: var(--color-text-light);
    margin-top: var(--space-1);
}

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

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

.form-check label {
    cursor: pointer;
    font-weight: 500;
}

/* Validation */
.validation-message {
    color: var(--color-danger);
    font-size: var(--font-size-xs);
    margin-top: var(--space-1);
    display: block;
}

.form-control.invalid,
.form-control.modified.invalid {
    border-color: var(--color-danger);
}

.form-control.valid,
.form-control.modified.valid {
    border-color: var(--color-accent-green);
}

/* ============================================================
   11. Badges
   ============================================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px var(--space-3);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    line-height: 1.6;
    white-space: nowrap;
}

.badge-primary {
    background: rgba(14, 165, 233, 0.1);
    color: var(--color-accent-blue);
}

.badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-accent-green);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--color-warning-dark);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-danger);
}

.badge-outline {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
}

/* Status Badges */
.status-published {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: 2px var(--space-3);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-accent-green);
}

.status-published::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-accent-green);
}

.status-draft {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: 2px var(--space-3);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    background: rgba(100, 116, 139, 0.1);
    color: var(--color-text-muted);
}

.status-draft::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-text-muted);
}

.status-processed {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: 2px var(--space-3);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-accent-green);
}

.status-processed::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-accent-green);
}

.status-pending {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: 2px var(--space-3);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    background: rgba(245, 158, 11, 0.1);
    color: var(--color-warning-dark);
}

.status-pending::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-warning);
    animation: glowPulse 2s ease-in-out infinite;
}

/* ============================================================
   12. Breadcrumb
   ============================================================ */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-4);
    flex-wrap: wrap;
}

.breadcrumb a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb a:hover {
    color: var(--color-accent-blue);
}

.breadcrumb-separator {
    color: var(--color-text-light);
    font-size: var(--font-size-xs);
}

.breadcrumb-current {
    color: var(--color-text);
    font-weight: 500;
}

/* ============================================================
   13. Page Header
   ============================================================ */
.page-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: calc(var(--navbar-height) + var(--space-10)) 0 var(--space-10);
}

.page-header h1 {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-2);
    border-left: none;
    padding-left: 0;
}

/* ============================================================
   14. Footer
   ============================================================ */
.footer {
    background-color: var(--color-primary-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--space-16) 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-10);
    padding-bottom: var(--space-12);
}

.footer-heading {
    font-size: var(--font-size-base);
    font-weight: 700;
    color: #fff;
    margin-bottom: var(--space-5);
    border-left: none;
    padding-left: 0;
}

.footer-text {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.5);
    line-height: var(--line-height);
}

.footer-link {
    display: block;
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6) !important;
    text-decoration: none;
    padding: var(--space-1) 0;
    transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.footer-link:hover {
    color: var(--color-accent-blue) !important;
    padding-left: var(--space-2);
}

.footer-brand {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: #fff;
    margin-bottom: var(--space-4);
    display: block;
}

.footer-brand span {
    color: var(--color-accent-blue);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: var(--space-6) 0;
    text-align: center;
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.4);
}

/* ============================================================
   15. CTA Section
   ============================================================ */
.cta-section {
    background: linear-gradient(135deg, var(--color-primary-dark), #162032);
    padding: var(--space-20) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 50%, rgba(14, 165, 233, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 50%, rgba(16, 185, 129, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.cta-section h2 {
    color: #fff;
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-4);
    border-left: none;
    padding-left: 0;
    position: relative;
}

.cta-section p {
    color: var(--color-text-light);
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-8);
    position: relative;
}

.cta-section .btn {
    position: relative;
}

/* ============================================================
   16. Admin Layout
   ============================================================ */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--color-primary-dark);
    color: #fff;
    overflow-y: auto;
    z-index: var(--z-fixed);
    display: flex;
    flex-direction: column;
}

.admin-sidebar-brand {
    padding: var(--space-6);
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: #fff;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.admin-sidebar-brand span {
    color: var(--color-accent-blue);
}

.admin-sidebar-nav {
    padding: var(--space-4) 0;
    flex: 1;
}

.admin-sidebar-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-6);
    color: rgba(255, 255, 255, 0.65) !important;
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
}

.admin-sidebar-link:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #fff !important;
}

.admin-sidebar-link.active {
    background: rgba(14, 165, 233, 0.1);
    color: var(--color-accent-blue) !important;
    border-left-color: var(--color-accent-blue);
}

.admin-sidebar-link .icon {
    font-size: var(--font-size-lg);
    width: 24px;
    text-align: center;
}

.admin-sidebar-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.08);
    margin: var(--space-3) var(--space-6);
}

.admin-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    min-height: 100vh;
    background: var(--color-bg);
}

.admin-topbar {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-4) var(--space-8);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.admin-main {
    padding: var(--space-8);
}

/* Admin Stat Card */
.admin-stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.admin-stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent-blue), var(--color-accent-green));
}

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

.admin-stat-card .stat-icon {
    font-size: 2rem;
    margin-bottom: var(--space-3);
}

.admin-stat-card .stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--color-text);
    line-height: 1;
    margin-bottom: var(--space-2);
}

.admin-stat-card .stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    font-weight: 500;
}

/* Admin Table */
.table-responsive {
    overflow-x: auto;
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

.admin-table thead {
    background: var(--color-border-light);
}

.admin-table th {
    padding: var(--space-4) var(--space-5);
    text-align: left;
    font-weight: 600;
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--color-border);
    white-space: nowrap;
}

.admin-table td {
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--color-border-light);
    color: var(--color-text);
    vertical-align: middle;
}

.admin-table tbody tr {
    transition: background-color var(--transition-fast);
}

.admin-table tbody tr:hover {
    background-color: rgba(14, 165, 233, 0.03);
}

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

.admin-table .actions {
    display: flex;
    gap: var(--space-2);
    white-space: nowrap;
}

/* ============================================================
   17. Alerts / Toast
   ============================================================ */
.alert {
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-5);
    border-left: 4px solid;
}

.alert-success {
    background: rgba(16, 185, 129, 0.08);
    color: var(--color-accent-green-dark);
    border-left-color: var(--color-accent-green);
}

.alert-error {
    background: rgba(239, 68, 68, 0.08);
    color: var(--color-danger-dark);
    border-left-color: var(--color-danger);
}

.alert-info {
    background: rgba(14, 165, 233, 0.08);
    color: var(--color-accent-blue-dark);
    border-left-color: var(--color-accent-blue);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.08);
    color: var(--color-warning-dark);
    border-left-color: var(--color-warning);
}

/* ============================================================
   18. Accordion / FAQ
   ============================================================ */
.accordion {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.accordion-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--transition-fast);
}

.accordion-item.active {
    border-color: rgba(14, 165, 233, 0.3);
}

.accordion-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-6);
    cursor: pointer;
    font-weight: 600;
    font-size: var(--font-size-base);
    color: var(--color-text);
    transition: background-color var(--transition-fast);
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    gap: var(--space-4);
}

.accordion-header:hover {
    background: var(--color-border-light);
}

.accordion-chevron {
    font-size: var(--font-size-sm);
    transition: transform var(--transition-base);
    flex-shrink: 0;
    color: var(--color-text-muted);
}

.accordion-item.active .accordion-chevron {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow), padding var(--transition-slow);
}

.accordion-item.active .accordion-content {
    max-height: 500px;
    padding: 0 var(--space-6) var(--space-6);
}

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

/* ============================================================
   19. Filter Buttons
   ============================================================ */
.filter-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-10);
}

.filter-btn {
    padding: var(--space-2) var(--space-5);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-full);
    background: var(--color-surface);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    border-color: var(--color-accent-blue);
    color: var(--color-accent-blue);
}

.filter-btn.active {
    background: var(--color-accent-blue);
    border-color: var(--color-accent-blue);
    color: #fff;
    box-shadow: 0 2px 8px rgba(14, 165, 233, 0.3);
}

/* ============================================================
   20. Loading Spinner
   ============================================================ */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: var(--space-8) auto;
}

.spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

.loading-container {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-16) 0;
    flex-direction: column;
    gap: var(--space-4);
}

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

/* ============================================================
   21. Why Choose Us Cards / Stats
   ============================================================ */
.why-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    text-align: center;
    transition: all var(--transition-base);
}

.why-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(14, 165, 233, 0.3);
    transform: translateY(-4px);
}

.why-card .why-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-4);
    display: block;
}

.why-card h4 {
    color: #fff;
    margin-bottom: var(--space-3);
    font-size: var(--font-size-lg);
}

.why-card p {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 0;
}

/* ============================================================
   22. Social Buttons
   ============================================================ */
.social-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-base);
    border: 1.5px solid;
}

.social-btn-facebook {
    background: rgba(24, 119, 242, 0.1);
    color: #1877F2 !important;
    border-color: rgba(24, 119, 242, 0.2);
}

.social-btn-facebook:hover {
    background: #1877F2;
    color: #fff !important;
    box-shadow: 0 4px 15px rgba(24, 119, 242, 0.3);
}

.social-btn-line {
    background: rgba(0, 185, 0, 0.1);
    color: #00B900 !important;
    border-color: rgba(0, 185, 0, 0.2);
}

.social-btn-line:hover {
    background: #00B900;
    color: #fff !important;
    box-shadow: 0 4px 15px rgba(0, 185, 0, 0.3);
}

/* ============================================================
   23. Login Page
   ============================================================ */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-dark);
    padding: var(--space-6);
    position: relative;
}

.login-container::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 50%, rgba(14, 165, 233, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 50%, rgba(16, 185, 129, 0.06) 0%, transparent 50%);
    pointer-events: none;
}

.login-card {
    background: var(--color-surface);
    border-radius: var(--radius-2xl);
    padding: var(--space-12);
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-2xl);
    position: relative;
    z-index: 1;
}

.login-card h1 {
    text-align: center;
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-8);
    border-left: none;
    padding-left: 0;
}

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

.login-brand .brand-text {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--color-primary-dark);
}

.login-brand .brand-text span {
    color: var(--color-accent-blue);
}

/* ============================================================
   24. Article Page
   ============================================================ */
.article-container {
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: var(--space-10) var(--space-6);
}

.article-container h1 {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-4);
    border-left: none;
    padding-left: 0;
}

.article-meta {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-8);
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.article-thumbnail {
    width: 100%;
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: var(--space-8);
    aspect-ratio: 16/9;
}

.article-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-content {
    font-size: var(--font-size-base);
    line-height: 1.8;
    color: var(--color-text);
}

.article-content h2 {
    margin-top: var(--space-10);
    margin-bottom: var(--space-4);
}

.article-content h3 {
    margin-top: var(--space-8);
    margin-bottom: var(--space-3);
}

.article-content p {
    margin-bottom: var(--space-5);
    color: var(--color-text);
}

.article-content img {
    border-radius: var(--radius-lg);
    margin: var(--space-6) 0;
}

.article-back {
    margin-top: var(--space-10);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border);
}

/* ============================================================
   25. Contact Page
   ============================================================ */
.contact-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--space-10);
    align-items: start;
}

.contact-info-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
}

.contact-info-item {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--color-border-light);
}

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

.contact-info-item .info-icon {
    font-size: var(--font-size-xl);
    flex-shrink: 0;
}

.contact-info-item .info-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--space-1);
}

.contact-info-item .info-value {
    font-weight: 600;
    color: var(--color-text);
    font-size: var(--font-size-sm);
    margin-bottom: 0;
}

.social-links {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-6);
}

/* ============================================================
   26. Animations & Keyframes
   ============================================================ */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes glowPulse {
    0%, 100% {
        box-shadow: 0 0 4px currentColor;
        opacity: 1;
    }
    50% {
        box-shadow: 0 0 8px currentColor;
        opacity: 0.7;
    }
}

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

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Animation utility classes */
.animate-fadeIn {
    animation: fadeIn 0.6s ease-out both;
}

.animate-slideUp {
    animation: slideUp 0.6s ease-out both;
}

.animate-slideInLeft {
    animation: slideInLeft 0.6s ease-out both;
}

.animate-slideInRight {
    animation: slideInRight 0.6s ease-out both;
}

.animate-scaleIn {
    animation: scaleIn 0.4s ease-out both;
}

/* Staggered animation delays */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }
.delay-6 { animation-delay: 0.6s; }
.delay-7 { animation-delay: 0.7s; }

/* ============================================================
   27. Utility Classes
   ============================================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-10 { margin-bottom: var(--space-10); }

.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

.p-1 { padding: var(--space-1); }
.p-2 { padding: var(--space-2); }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-5 { padding: var(--space-5); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

.hidden { display: none !important; }
.block { display: block; }
.inline-block { display: inline-block; }
.w-full { width: 100%; }
.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.overflow-hidden { overflow: hidden; }

/* ============================================================
   28. Blazor Error UI
   ============================================================ */
#blazor-error-ui {
    background: linear-gradient(135deg, var(--color-danger), var(--color-danger-dark));
    color: #fff;
    padding: var(--space-3) var(--space-6);
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: var(--z-toast);
    text-align: center;
    font-size: var(--font-size-sm);
    font-weight: 500;
    display: none;
}

#blazor-error-ui .dismiss {
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
    margin-left: var(--space-4);
    text-decoration: underline;
}

/* ============================================================
   29. Responsive Design
   ============================================================ */

/* Tablet and below */
@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: 1fr; }

    .admin-sidebar {
        transform: translateX(-100%);
        transition: transform var(--transition-base);
    }

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

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

/* Mobile */
@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2.25rem;
        --font-size-4xl: 1.875rem;
        --font-size-3xl: 1.5rem;
        --font-size-2xl: 1.25rem;
    }

    .container {
        padding: 0 var(--space-4);
    }

    .section {
        padding: var(--space-12) 0;
    }

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

    /* Mobile Navigation */
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: var(--navbar-height);
        left: 0;
        right: 0;
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(12px);
        flex-direction: column;
        padding: var(--space-6);
        gap: var(--space-1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: transform var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
        z-index: var(--z-dropdown);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-link {
        padding: var(--space-3) var(--space-4);
        font-size: var(--font-size-base);
    }

    .nav-link::after {
        display: none;
    }

    /* Mobile Hero */
    .hero {
        min-height: 70vh;
        padding: calc(var(--navbar-height) + var(--space-8)) var(--space-4) var(--space-8);
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .hero-actions .btn {
        width: 100%;
        max-width: 280px;
    }

    /* Mobile Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    /* Mobile Page Header */
    .page-header {
        padding: calc(var(--navbar-height) + var(--space-6)) 0 var(--space-6);
    }

    .page-header h1 {
        font-size: var(--font-size-3xl);
    }

    /* Mobile CTA */
    .cta-section h2 {
        font-size: var(--font-size-3xl);
    }

    /* Mobile Contact */
    .contact-grid {
        grid-template-columns: 1fr;
    }

    /* Mobile Login */
    .login-card {
        padding: var(--space-8);
    }

    /* Mobile Table */
    .admin-table {
        font-size: var(--font-size-xs);
    }

    .admin-table th,
    .admin-table td {
        padding: var(--space-3);
    }

    /* Mobile Admin */
    .admin-main {
        padding: var(--space-4);
    }

    .admin-topbar {
        padding: var(--space-3) var(--space-4);
    }
}

/* Desktop large */
@media (min-width: 1280px) {
    .hero-title {
        font-size: var(--font-size-6xl);
    }
}

/* ============================================================
   30. Print Styles
   ============================================================ */
@media print {
    .navbar, .footer, .nav-toggle, .hero-actions, .cta-section,
    .admin-sidebar, .admin-topbar, #blazor-error-ui {
        display: none !important;
    }

    .admin-content {
        margin-left: 0 !important;
    }

    body {
        color: #000;
        background: #fff;
    }
}

/* ── Google Maps Container ── */
.map-container {
    width: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
}

.map-container iframe {
    display: block;
    width: 100%;
    min-height: 450px;
}