/* ============================================
   Novamira Portfolio Theme — Main Stylesheet
   Tech-Style Dark Theme
   ============================================ */

/* --------------------------------------------
   CSS Variables / Theme Tokens — DARK TECH STYLE
   -------------------------------------------- */
:root {
    /* Background Colors — Dark Tech Feel */
    --color-bg: #282848;
    --color-bg-alt: #323258;
    --color-bg-card: #3a3a62;
    --color-surface: #383860;

    /* Borders and Dividers — Subtle Tech Glow */
    --color-border: #3a3a6a;
    --color-border-light: #343460;
    --color-border-glow: rgba(99, 102, 241, 0.3);

    /* Text Colors */
    --color-text: #e8e8f5;
    --color-text-secondary: #b0b0d0;
    --color-text-muted: #9090b0;
    --color-text-bright: #ffffff;

    /* Primary Colors — Electric Indigo/Purple */
    --color-primary: #6366f1;
    --color-primary-hover: #818cf8;
    --color-primary-dim: #4f46e5;
    --color-primary-light: #1e1b4b;
    --color-primary-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);

    /* Accent Colors — Cyan/Teal for Tech Feel */
    --color-accent: #06b6d4;
    --color-accent-hover: #22d3ee;
    --color-accent-gradient: linear-gradient(135deg, #06b6d4 0%, #10b981 100%);

    /* Status Colors */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;

    /* Glowing Effects */
    --glow-primary: 0 0 20px rgba(99, 102, 241, 0.4);
    --glow-accent: 0 0 20px rgba(6, 182, 212, 0.4);
    --glow-purple: 0 0 25px rgba(168, 85, 247, 0.3);

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);

    /* Typography */
    --font-sans: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;

    /* Spacing — Reduced for tighter layout */
    --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;

    /* Layout */
    --container-max: 1280px;
    --content-max: 780px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.25s ease;
    --transition-slow: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-curve: cubic-bezier(0.4, 0, 0.2, 1);

    /* Header */
    --header-height: 76px;
}

/* Default to dark theme */
body {
    background-color: var(--color-bg);
    color: var(--color-text);
}

[data-theme="dark"] {
    --color-bg: #282848;
    --color-bg-alt: #323258;
    --color-bg-card: #3a3a62;
    --color-surface: #383860;

    --color-border: #3a3a6a;
    --color-border-light: #343460;

    --color-text: #e8e8f5;
    --color-text-secondary: #b0b0d0;
    --color-text-muted: #9090b0;

    --color-primary: #6366f1;
    --color-primary-hover: #818cf8;
    --color-primary-light: #1e1b4b;
}

/* Light theme (minimal changes) */
[data-theme="light"] {
    --color-bg: #f5f5f8;
    --color-bg-alt: #ffffff;
    --color-bg-card: #ffffff;
    --color-surface: #f0f0f5;

    --color-border: #e0e0e8;
    --color-border-light: #ececf5;

    --color-text: #1a1a2e;
    --color-text-secondary: #5a5a7a;
    --color-text-muted: #9aa0b0;

    --color-primary: #4f46e5;
    --color-primary-hover: #4338ca;
    --color-primary-light: #eef2ff;
}

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

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

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
    color: var(--color-primary-hover);
}

ul, ol {
    list-style: none;
}

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

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

/* --------------------------------------------
   Header
   -------------------------------------------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    background: rgba(40, 40, 72, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.site-header.scrolled {
    box-shadow: var(--shadow-lg);
    border-bottom-color: var(--color-border-glow);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-weight: 700;
    font-size: var(--text-xl);
    color: var(--color-text-bright);
}

.logo-svg {
    width: 40px;
    height: 40px;
    fill: var(--color-primary);
}

.logo-text {
    background: var(--color-primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-link {
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: var(--text-sm);
    padding: var(--space-2) 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary-gradient);
    transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.current {
    color: var(--color-text-bright);
}

.nav-link:hover::after,
.nav-link.current::after {
    width: 100%;
}

.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
    z-index: 1001;
    padding: var(--space-2);
}

.nav-item-has-children:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.submenu a {
    display: block;
    padding: var(--space-2) var(--space-3);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.submenu a:hover {
    background: var(--color-primary-light);
    color: var(--color-text-bright);
}

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

.lang-switcher a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--color-text-secondary);
}

.lang-switcher a:hover,
.lang-switcher a.current {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text-bright);
}

.lang-switcher a {
    font-weight: 600;
    font-size: var(--text-xs);
    text-transform: uppercase;
    text-decoration: none;
}

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

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text-bright);
    transition: all var(--transition-base);
}

/* Mobile Menu */
.mobile-menu {
    display: block;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg);
    padding: var(--space-6);
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    z-index: 999;
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-menu .nav-menu {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-2);
}

.mobile-menu .nav-link {
    padding: var(--space-4);
    border-radius: var(--radius-md);
}

/* --------------------------------------------
   Hero Section
   -------------------------------------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
    padding-top: var(--header-height);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(168, 85, 247, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(6, 182, 212, 0.1) 0%, transparent 40%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    padding: var(--space-12) var(--space-4);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--color-primary-light);
    border: 1px solid var(--color-primary);
    border-radius: 50px;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--space-6);
    animation: fadeInUp 0.6s ease-out;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-6);
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.gradient-text {
    background: var(--color-primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 3vw, 1.5rem);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-10);
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

/* --------------------------------------------
   Buttons
   -------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0.875rem 2rem;
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: 600;
    line-height: 1;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-primary-gradient);
    color: var(--color-text-bright);
    border-color: transparent;
    box-shadow: var(--glow-primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(99, 102, 241, 0.5);
}

.btn-outline {
    background: transparent;
    border-color: var(--color-border);
    color: var(--color-text);
}

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

.btn-block {
    width: 100%;
}

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

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

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--space-12);
}

.section-badge {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: var(--color-primary-light);
    border: 1px solid var(--color-primary);
    border-radius: 50px;
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    margin-bottom: var(--space-4);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--space-4);
    line-height: 1.2;
}

.section-desc {
    color: var(--color-text-secondary);
    font-size: var(--text-lg);
    line-height: 1.7;
}

/* --------------------------------------------
   Featured Cases Section
   -------------------------------------------- */
.featured-section {
    position: relative;
    padding: var(--space-20) 0;
    background: var(--color-bg);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.case-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.case-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-primary);
    box-shadow: var(--glow-primary);
}

.case-thumbnail {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
}

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

.case-card:hover .case-thumbnail img {
    transform: scale(1.1);
}

.case-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.case-card:hover .case-overlay {
    opacity: 1;
}

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

.case-title {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-3);
    color: var(--color-text);
}

.case-excerpt {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    line-height: 1.6;
    margin-bottom: var(--space-4);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.case-tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.tech-tag {
    padding: var(--space-1) var(--space-3);
    background: var(--color-primary-light);
    border: 1px solid var(--color-primary);
    border-radius: 50px;
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--color-primary);
}

.case-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-primary);
    font-weight: 600;
    font-size: var(--text-sm);
}

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

/* No cases message */
.no-cases {
    text-align: center;
    padding: var(--space-16);
    color: var(--color-text-secondary);
}

/* --------------------------------------------
   Case Archive Cards
   -------------------------------------------- */
.case-card-link {
    display: flex;
    flex-direction: column;
    height: 100%;
    text-decoration: none;
    color: inherit;
}

.case-card-thumb {
    width: 100%;
    height: 240px;
    overflow: hidden;
    flex-shrink: 0;
}

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

.case-card:hover .case-card-thumb img {
    transform: scale(1.1);
}

.case-card-body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: var(--space-5) var(--space-6);
}

.case-card-title {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: var(--text-xl);
    font-weight: 700;
    line-height: 1.4;
    min-height: calc(1.4em * 2);
    color: var(--color-text);
    flex: 1;
}

.case-card-cta {
    margin-top: auto;
    align-self: flex-end;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-primary);
    font-weight: 600;
    font-size: var(--text-sm);
    padding-top: var(--space-4);
    transition: color var(--transition-fast);
}

.case-card:hover .case-card-cta {
    color: var(--color-primary-hover);
}

/* --------------------------------------------
   Case Detail Gallery
   -------------------------------------------- */
.case-gallery {
    margin: var(--space-10) 0;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.case-gallery-main {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--color-bg);
}

.gallery-track {
    flex: 1;
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
    min-height: 400px;
}

.gallery-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.gallery-slide.active {
    opacity: 1;
    pointer-events: auto;
}

.gallery-slide img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: var(--space-4);
}

.gallery-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    border: 2px solid var(--color-border);
    border-radius: 50%;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    backdrop-filter: blur(4px);
}

.gallery-nav:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.gallery-prev {
    left: var(--space-4);
}

.gallery-next {
    right: var(--space-4);
}

.case-gallery-thumbs {
    display: flex;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-alt);
    overflow-x: auto;
}

.gallery-thumb {
    flex-shrink: 0;
    width: 80px;
    height: 60px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
    padding: 0;
    background: none;
    transition: all var(--transition-fast);
    opacity: 0.5;
}

.gallery-thumb:hover {
    opacity: 0.8;
    border-color: var(--color-primary-hover);
}

.gallery-thumb.active {
    opacity: 1;
    border-color: var(--color-primary);
}

.gallery-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Case Hero */
.case-hero {
    padding: calc(var(--header-height) + var(--space-16)) 0 var(--space-8);
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
    text-align: center;
    position: relative;
}

.case-hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(circle at 50% 100%, rgba(99, 102, 241, 0.08) 0%, transparent 60%);
    pointer-events: none;
}

.case-hero-content {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.case-hero-cats {
    display: flex;
    gap: var(--space-2);
    justify-content: center;
    margin-bottom: var(--space-4);
}

.case-cat-label {
    padding: var(--space-1) var(--space-4);
    background: var(--color-primary-light);
    border: 1px solid var(--color-primary);
    border-radius: 50px;
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--color-primary);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.case-cat-label:hover {
    background: var(--color-primary);
    color: var(--color-text-bright);
}

.case-hero-title {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: var(--space-4);
}

.case-hero-desc {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto;
}

/* Case Layout (main + sidebar) */
.case-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--space-10);
    margin-top: var(--space-8);
}

.case-description {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    line-height: 1.9;
}

.case-description h2 {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-bottom: var(--space-6);
    color: var(--color-text);
}

.case-description p {
    margin-bottom: var(--space-5);
    color: var(--color-text-secondary);
}

.case-info-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    position: sticky;
    top: calc(var(--header-height) + var(--space-8));
}

.case-info-item {
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--color-border);
}

.case-info-item:last-of-type {
    border-bottom: none;
}

.case-info-label {
    display: block;
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-2);
}

.case-info-value {
    display: block;
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--color-text);
}

.case-info-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-2);
}

.case-info-tech .tech-tag {
    padding: var(--space-1) var(--space-3);
    background: var(--color-primary-light);
    border: 1px solid var(--color-primary);
    border-radius: 50px;
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--color-primary);
}

.case-info-action {
    margin-top: var(--space-6);
}

.case-info-action .btn-block {
    width: 100%;
    text-align: center;
}

/* Case Navigation */
.case-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: var(--space-10) 0;
    gap: var(--space-6);
}

.case-nav a {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.case-nav a:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.case-nav-back a {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* --------------------------------------------
   Services Section
   -------------------------------------------- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.service-card {
    text-align: center;
    padding: var(--space-8) var(--space-6);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-5);
    background: var(--color-primary-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}

.service-icon svg {
    width: 32px;
    height: 32px;
}

.service-title {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-3);
}

.service-desc {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    line-height: 1.6;
}

/* --------------------------------------------
   Blog Section
   -------------------------------------------- */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    align-items: stretch;
}

.blog-card {
    display: flex;
    flex-direction: column;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.blog-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
}

.blog-card-thumb {
    display: block;
    width: 100%;
    height: 220px;
    overflow: hidden;
    flex-shrink: 0;
}

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

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

.blog-card-body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: var(--space-5) var(--space-6);
}

.blog-card-title {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: var(--text-lg);
    font-weight: 600;
    line-height: 1.5;
    min-height: calc(1.5em * 2);
    flex: 1;
}

.blog-card-title a {
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.blog-card-title a:hover {
    color: var(--color-primary);
}

.blog-read-more {
    margin-top: auto;
    align-self: flex-end;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-primary);
    font-weight: 600;
    font-size: var(--text-sm);
    padding-top: var(--space-4);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.blog-read-more:hover {
    color: var(--color-primary-hover);
}

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

/* Homepage blog section (front-page.php) backward compat */
.blog-thumbnail {
    display: block;
    width: 100%;
    height: 220px;
    overflow: hidden;
}

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

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

.blog-meta {
    padding: var(--space-5) var(--space-6);
}

.blog-categories {
    margin-bottom: var(--space-3);
}

.blog-category {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: var(--color-primary-light);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 50px;
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--color-primary);
}

.blog-title {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-3);
    line-height: 1.4;
}

.blog-title a {
    color: var(--color-text);
}

.blog-title a:hover {
    color: var(--color-primary);
}

.blog-excerpt {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    line-height: 1.6;
    margin-bottom: var(--space-4);
}

/* --------------------------------------------
   Content Layout (Single Page/Post)
   -------------------------------------------- */
.content-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--space-10);
}

.post-body,
.page-body {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
}

.entry-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--space-4);
    line-height: 1.3;
}

.entry-meta {
    display: flex;
    gap: var(--space-6);
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}

.entry-content {
    line-height: 1.8;
}

.entry-content h2 {
    font-size: var(--text-2xl);
    margin-top: var(--space-10);
    margin-bottom: var(--space-4);
}

.entry-content h3 {
    font-size: var(--text-xl);
    margin-top: var(--space-8);
    margin-bottom: var(--space-3);
}

.entry-content ul,
.entry-content ol {
    margin: var(--space-6) 0;
    padding-left: var(--space-6);
}

.entry-content li {
    margin-bottom: var(--space-2);
    padding-left: var(--space-2);
}

.entry-content p {
    margin-bottom: var(--space-5);
}

.entry-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: var(--space-6) 0;
}

/* --------------------------------------------
   Sidebar
   -------------------------------------------- */
.sidebar,
.content-sidebar {
    position: sticky;
    top: calc(var(--header-height) + var(--space-8));
    height: fit-content;
}

.widget {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    margin-bottom: var(--space-6);
}

.widget-title {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-5);
    padding-bottom: var(--space-3);
    border-bottom: 2px solid var(--color-border);
}

.widget ul li {
    padding: var(--space-2) 0;
    border-bottom: 1px solid var(--color-border-light);
}

.widget ul li:last-child {
    border-bottom: none;
}

.widget ul li a {
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.widget ul li a:hover {
    color: var(--color-primary);
}

/* Subcategory Navigation */
.cat-nav {
    list-style: none;
}

.cat-nav li {
    border-bottom: 1px solid var(--color-border-light);
}

.cat-nav li:last-child {
    border-bottom: none;
}

.cat-nav li a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) 0;
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.cat-nav li a:hover {
    color: var(--color-primary);
    padding-left: var(--space-2);
}

.cat-nav li.current-cat a {
    color: var(--color-primary);
    font-weight: 600;
}

.cat-nav li.current-cat a::before {
    content: '';
    display: inline-block;
    width: 3px;
    height: 1em;
    background: var(--color-primary);
    border-radius: 2px;
    margin-right: var(--space-2);
    flex-shrink: 0;
}

.cat-nav .children {
    margin-left: var(--space-4);
    list-style: none;
}

.cat-nav .children li {
    border-bottom: none;
}

.cat-nav .children li a {
    font-size: var(--text-xs);
    padding: var(--space-2) 0;
}

.cat-nav .count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    height: 22px;
    padding: 0 var(--space-1);
    background: var(--color-primary-light);
    border-radius: 50px;
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-primary);
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.tag-cloud a {
    padding: var(--space-1) var(--space-3);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 50px;
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.tag-cloud a:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text-bright);
}

/* --------------------------------------------
   Page/Post Hero
   -------------------------------------------- */
.page-hero {
    padding: calc(var(--header-height) + var(--space-16)) 0 var(--space-12);
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
    text-align: center;
}

.page-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--space-4);
}

.page-breadcrumbs {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}

.page-breadcrumbs a {
    color: var(--color-text-secondary);
}

/* Post Hero (Single Blog Post) */
.post-hero {
    padding: calc(var(--header-height) + var(--space-20)) 0 var(--space-16);
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
    text-align: center;
    position: relative;
}

.post-hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(circle at 50% 100%, rgba(99, 102, 241, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

.post-hero-content {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.post-meta {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    align-items: center;
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
}

.post-meta span {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.post-meta span::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--color-primary);
    margin-right: var(--space-1);
}

.post-meta span:first-child::before {
    display: none;
}

.post-author a {
    color: var(--color-primary);
    font-weight: 500;
}

.post-author a:hover {
    color: var(--color-primary-hover);
}

.post-title {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: var(--space-4);
    color: var(--color-text-bright);
}

.post-excerpt {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto;
}

/* Post Body */
.post-body {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-10);
    margin-top: var(--space-8);
    font-size: var(--text-base);
    line-height: 1.9;
}

.post-thumbnail {
    margin-bottom: var(--space-6);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.post-thumbnail img {
    width: 100%;
    height: auto;
}

.post-footer-meta {
    margin-top: var(--space-8);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border);
}

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    align-items: center;
}

.tag-label {
    font-weight: 600;
    color: var(--color-text);
    margin-right: var(--space-2);
}

.post-tags a {
    padding: var(--space-1) var(--space-3);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 50px;
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.post-tags a:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text-bright);
}

/* Post Navigation */
.post-nav {
    display: flex;
    justify-content: space-between;
    margin-top: var(--space-10);
    gap: var(--space-6);
}

.post-nav a {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-6);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
    max-width: 45%;
}

.post-nav a:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-light);
}

/* --------------------------------------------
   Contact Form
   -------------------------------------------- */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-10);
}

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

.contact-details {
    margin-bottom: var(--space-8);
}

.contact-detail {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-5);
}

.contact-detail-icon {
    width: 48px;
    height: 48px;
    background: var(--color-primary-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}

.contact-detail-icon svg {
    width: 24px;
    height: 24px;
}

.contact-detail h4 {
    font-size: var(--text-sm);
    font-weight: 600;
    margin-bottom: var(--space-1);
}

.contact-detail p {
    color: var(--color-text-secondary);
    margin: 0;
}

.contact-form .form-group {
    margin-bottom: var(--space-5);
}

.contact-form label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--space-2);
    color: var(--color-text);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: var(--space-4);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
}

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

.contact-form textarea {
    min-height: 150px;
    resize: vertical;
}

.success-message {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--color-success);
    border-radius: var(--radius-md);
    padding: var(--space-5);
    text-align: center;
    margin-bottom: var(--space-6);
    color: var(--color-success);
}

/* --------------------------------------------
   Footer
   -------------------------------------------- */
.site-footer {
    background: var(--color-bg-card);
    border-top: 1px solid var(--color-border);
    padding: var(--space-16) 0 var(--space-8);
}

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

.footer-brand p {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    margin-top: var(--space-4);
    line-height: 1.7;
}

.footer-title {
    font-size: var(--text-sm);
    font-weight: 600;
    margin-bottom: var(--space-5);
    color: var(--color-text);
}

.footer-nav li {
    margin-bottom: var(--space-3);
}

.footer-nav a {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
}

.footer-nav a:hover {
    color: var(--color-primary);
}

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

.social-link {
    width: 40px;
    height: 40px;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text-bright);
}

.footer-bottom {
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
}

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

/* --------------------------------------------
   404 Page
   -------------------------------------------- */
.error-page {
    min-height: calc(100vh - var(--header-height));
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-16) var(--space-4);
}

.error-code {
    font-size: clamp(5rem, 20vw, 12rem);
    font-weight: 800;
    background: var(--color-primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--space-6);
}

.error-title {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--space-4);
}

.error-message {
    color: var(--color-text-secondary);
    font-size: var(--text-lg);
    margin-bottom: var(--space-8);
}

/* --------------------------------------------
   Pagination
   -------------------------------------------- */
.pagination {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-10);
}

.pagination a,
.pagination span {
    min-width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.pagination a:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text-bright);
}

.pagination .current {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text-bright);
}

/* --------------------------------------------
   Animations
   -------------------------------------------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease-out forwards;
}

/* --------------------------------------------
   Responsive Design
   -------------------------------------------- */

/* Tablet */
@media (max-width: 1024px) {
    .cases-grid,
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .content-layout,
    .contact-layout {
        grid-template-columns: 1fr;
    }

    .sidebar,
    .content-sidebar {
        position: static;
    }
}

/* Mobile */
@media (max-width: 992px) {
    :root {
        --space-12: 2rem;
        --space-16: 3rem;
        --space-20: 4rem;
        --space-24: 5rem;
    }

    .nav-menu {
        display: none;
    }

    .mobile-toggle {
        display: flex;
    }

    .lang-switcher {
        display: none;
    }
}

@media (max-width: 768px) {
    .hero {
        min-height: 80vh;
    }

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

    .section-header {
        margin-bottom: var(--space-8);
    }

    .cases-grid,
    .blog-grid,
    .services-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --container-max: 100%;
        --header-height: 64px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .pagination {
        flex-wrap: wrap;
    }
}