/*
 * T1K — Precision Engineering Aesthetic
 * Dark-mode-first. Editorial. Confident.
 * Overrides shared brand for T1K identity.
 */

/* ============================================
   FONTS
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=DM+Mono:wght@400;500&display=swap');

/* ============================================
   T1K THEME — Full Override
   ============================================ */
.theme-t1k {
    --color-accent: #2563eb;
    --color-accent-glow: rgba(37, 99, 235, 0.15);
    --color-accent-soft: rgba(37, 99, 235, 0.08);
    --color-accent-bright: #3b82f6;

    /* Dark palette — light dark mode */
    --color-bg: #2a3555;
    --color-bg-alt: #243050;
    --color-bg-card: #324060;
    --color-bg-card-hover: #3a4a6a;
    --color-bg-elevated: #3a4a6a;

    --color-text: #edf0f7;
    --color-text-muted: #9aabc4;
    --color-text-light: #ffffff;
    --color-text-dim: #7080a0;

    --color-border: #3a4a68;
    --color-border-light: #324060;
    --color-border-accent: rgba(37, 99, 235, 0.3);

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 30px rgba(37, 99, 235, 0.15);

    /* Override font */
    --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'DM Mono', 'JetBrains Mono', monospace;
}

/* Kill dark mode media query - we're always dark */
@media (prefers-color-scheme: dark) {
    .theme-t1k {
        --color-bg: #2a3555;
        --color-bg-alt: #243050;
        --color-text: #edf0f7;
        --color-text-muted: #9aabc4;
        --color-border: #3a4a68;
        --color-border-light: #324060;
    }
}

/* ============================================
   GLOBAL OVERRIDES
   ============================================ */
.theme-t1k body {
    background: var(--color-bg);
    color: var(--color-text);
    overflow-x: hidden;
}

.theme-t1k a {
    color: var(--color-accent-bright);
}

.theme-t1k a:hover {
    color: #60a5fa;
}

/* ============================================
   HEADER
   ============================================ */
.theme-t1k .header {
    background: rgba(42, 53, 85, 0.85);
    backdrop-filter: blur(20px) saturate(1.4);
    -webkit-backdrop-filter: blur(20px) saturate(1.4);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-3) 0;
}

.theme-t1k .logo {
    font-family: var(--font-mono);
    font-size: var(--text-xl);
    font-weight: 500;
    letter-spacing: 0.15em;
    color: var(--color-text-light);
    text-transform: uppercase;
    position: relative;
}

.theme-t1k .logo::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.theme-t1k .logo:hover::after {
    transform: scaleX(1);
}

.theme-t1k .nav-link {
    font-size: var(--text-sm);
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-text-dim);
    padding: var(--space-2) 0;
    position: relative;
    transition: color 0.25s ease;
}

.theme-t1k .nav-link:hover {
    color: var(--color-text);
    text-decoration: none;
}

.theme-t1k .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--color-accent);
    transform: scaleX(0);
    transition: transform 0.25s ease;
}

.theme-t1k .nav-link:hover::after {
    transform: scaleX(1);
}

.theme-t1k .lang-switch {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    padding: var(--space-1) var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-dim);
}

.theme-t1k .lang-switch:hover {
    border-color: var(--color-accent);
    color: var(--color-accent-bright);
}

/* ============================================
   HERO — Cinematic
   ============================================ */
.theme-t1k .hero {
    position: relative;
    padding: 0;
    text-align: left;
    min-height: 85vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.theme-t1k .hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 70% 40%, rgba(37, 99, 235, 0.08), transparent),
        radial-gradient(ellipse 50% 50% at 20% 80%, rgba(37, 99, 235, 0.04), transparent);
    pointer-events: none;
}

/* Grid overlay */
.theme-t1k .hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(37, 99, 235, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37, 99, 235, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    mask-image: radial-gradient(ellipse 70% 60% at 60% 50%, black, transparent);
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 60% 50%, black, transparent);
}

.theme-t1k .hero .container {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    padding-top: var(--space-16);
    padding-bottom: var(--space-16);
}

.theme-t1k .hero-title {
    font-size: clamp(2.5rem, 5.5vw, 4.5rem);
    font-weight: 700;
    line-height: 1.08;
    letter-spacing: -0.03em;
    color: var(--color-text-light);
    max-width: 800px;
    margin-bottom: var(--space-8);
}

.theme-t1k .hero-subtitle {
    font-size: var(--text-xl);
    line-height: 1.6;
    color: var(--color-text-muted);
    max-width: 580px;
    margin-left: 0;
    text-align: left;
}

.theme-t1k .hero-actions {
    justify-content: flex-start;
    gap: var(--space-4);
    margin-top: var(--space-8);
}

/* Hero stat badge — floating */
.hero-stat {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-accent-bright);
    margin-bottom: var(--space-6);
    padding: var(--space-2) var(--space-4);
    background: var(--color-accent-soft);
    border: 1px solid var(--color-border-accent);
    border-radius: var(--radius-full);
}

.hero-stat .dot {
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* ============================================
   HERO PHOTO (index page)
   ============================================ */
.hero-visual {
    position: absolute;
    top: 0;
    right: 0;
    width: 45%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.hero-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    opacity: 0.35;
    filter: saturate(0.5) contrast(1.05);
    mix-blend-mode: lighten;
}

.hero-visual::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, var(--color-bg) 0%, transparent 40%, transparent 80%, var(--color-bg) 100%),
                linear-gradient(180deg, transparent 60%, var(--color-bg) 100%);
}

/* ============================================
   BUTTONS — Sharp
   ============================================ */
.theme-t1k .btn {
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: var(--text-sm);
    letter-spacing: 0.03em;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.theme-t1k .btn-primary {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
    box-shadow: 0 0 20px rgba(37, 99, 235, 0.25);
}

.theme-t1k .btn-primary:hover {
    background: var(--color-accent-bright);
    border-color: var(--color-accent-bright);
    color: #fff;
    box-shadow: 0 0 30px rgba(37, 99, 235, 0.4);
    transform: translateY(-1px);
}

.theme-t1k .btn-secondary {
    background: transparent;
    color: var(--color-text);
    border-color: var(--color-border);
}

.theme-t1k .btn-secondary:hover {
    border-color: var(--color-text-muted);
    background: rgba(255, 255, 255, 0.03);
    color: var(--color-text-light);
}

.theme-t1k .btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
}

/* ============================================
   CARDS — Glass
   ============================================ */
.theme-t1k .card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.theme-t1k .card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-accent);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.theme-t1k .card-title {
    color: var(--color-text-light);
    font-weight: 600;
}

.theme-t1k .card-description {
    color: var(--color-text-muted);
}

.theme-t1k .card-icon {
    color: var(--color-accent);
    margin-bottom: var(--space-4);
}

/* ============================================
   BADGES
   ============================================ */
.theme-t1k .badge {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: var(--color-accent-soft);
    color: var(--color-accent-bright);
    border: 1px solid var(--color-border-accent);
    padding: var(--space-1) var(--space-3);
}

/* ============================================
   SECTIONS
   ============================================ */
.theme-t1k .bg-alt {
    background: var(--color-bg-alt);
}

.theme-t1k .py-16 {
    padding-top: 6rem;
    padding-bottom: 6rem;
}

/* Section headers */
.section-label {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent-bright);
    margin-bottom: var(--space-4);
    display: block;
}

.section-title {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-text-light);
    margin-bottom: var(--space-4);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-muted);
    max-width: 600px;
    line-height: 1.6;
}

.section-subtitle.centered {
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   VALUE CARDS — Numbered
   ============================================ */
.value-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.value-card {
    position: relative;
    padding-top: var(--space-8);
}

.value-card .value-number {
    font-family: var(--font-mono);
    font-size: 5rem;
    font-weight: 700;
    line-height: 1;
    color: rgba(37, 99, 235, 0.07);
    position: absolute;
    top: -0.5rem;
    left: var(--space-6);
    pointer-events: none;
}

/* ============================================
   CAROUSEL — Value Proposition
   ============================================ */
.carousel {
    max-width: 700px;
    margin: 0 auto;
}

.carousel-viewport {
    overflow: hidden;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-bg-card);
}

.carousel-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel-slide {
    min-width: 100%;
    padding: var(--space-12) var(--space-8);
    text-align: center;
    box-sizing: border-box;
}

.carousel-number {
    font-family: var(--font-mono);
    font-size: 4rem;
    font-weight: 700;
    line-height: 1;
    color: rgba(37, 99, 235, 0.12);
    display: block;
    margin-bottom: var(--space-4);
}

.carousel-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-text-light);
    margin-bottom: var(--space-4);
}

.carousel-text {
    font-size: var(--text-lg);
    color: var(--color-text-muted);
    line-height: 1.6;
    max-width: 520px;
    margin: 0 auto;
}

.carousel-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    margin-top: var(--space-6);
}

.carousel-arrow {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 0;
}

.carousel-arrow:hover {
    border-color: var(--color-accent);
    color: var(--color-accent-bright);
}

.carousel-dots {
    display: flex;
    gap: var(--space-2);
}

.carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-border);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0;
}

.carousel-dot.active {
    background: var(--color-accent);
    width: 24px;
    border-radius: 4px;
}

@media (max-width: 768px) {
    .carousel-slide {
        padding: var(--space-8) var(--space-6);
    }

    .carousel-number {
        font-size: 3rem;
    }

    .carousel-title {
        font-size: var(--text-xl);
    }

    .carousel-text {
        font-size: var(--text-base);
    }
}

/* ============================================
   CASE STUDIES — Photo Cards
   ============================================ */
.case-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
}

.case-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.case-card:hover {
    border-color: var(--color-border-accent);
    box-shadow: var(--shadow-glow);
}

.case-card-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
}

.case-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(0.6) brightness(0.7);
    transition: all 0.4s ease;
}

.case-card:hover .case-card-image img {
    filter: saturate(0.6) brightness(0.7);
    transform: scale(1.03);
}

.case-card-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60%;
    background: linear-gradient(transparent, var(--color-bg-card));
}

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

.case-card-note {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-accent-bright);
    margin-top: var(--space-4);
    padding-top: var(--space-3);
    border-top: 1px solid var(--color-border);
}

/* ============================================
   PROCESS STEPS — Timeline
   ============================================ */
.process-timeline {
    position: relative;
    padding-left: 3rem;
}

.process-timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 1px;
    background: linear-gradient(180deg, var(--color-accent), var(--color-border) 80%, transparent);
}

.process-step {
    position: relative;
    padding: var(--space-6);
    margin-bottom: var(--space-6);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.process-step:hover {
    border-color: var(--color-border-accent);
}

.step-number {
    position: absolute;
    left: -3rem;
    top: var(--space-6);
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-accent);
    background: var(--color-bg);
    border: 2px solid var(--color-accent);
    border-radius: 50%;
    z-index: 2;
}

.step-title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text-light);
    margin-bottom: var(--space-2);
}

.step-description {
    color: var(--color-text-muted);
    line-height: 1.6;
    margin: 0;
}

/* ============================================
   COMPARISON TABLE
   ============================================ */
.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.comparison-col {
    padding: var(--space-8);
}

.comparison-col.negative {
    background: rgba(239, 68, 68, 0.03);
    border-right: 1px solid var(--color-border);
}

.comparison-col.positive {
    background: rgba(37, 99, 235, 0.03);
}

.comparison-col h3 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-6);
}

.comparison-col.negative h3 {
    color: var(--color-text-muted);
}

.comparison-col.positive h3 {
    color: var(--color-accent-bright);
}

.comparison-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: 1.5;
}

.comparison-item .icon {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    margin-top: 1px;
}

.comparison-col.negative .icon {
    color: rgba(239, 68, 68, 0.5);
}

.comparison-col.positive .icon {
    color: var(--color-accent);
}

/* ============================================
   COMPARISON — Bar Visualization
   ============================================ */
.comparison-bar-section {
    margin-top: var(--space-8);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.comparison-bars {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.comparison-bar {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.bar-label {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 500;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
}

.bar-track {
    display: flex;
    height: 36px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.bar-fill {
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 500;
    transition: width 0.6s ease;
}

.bar-fill span {
    white-space: nowrap;
}

.bar-ui {
    background: rgba(239, 68, 68, 0.15);
    color: rgba(239, 68, 68, 0.7);
}

.bar-data {
    background: rgba(37, 99, 235, 0.08);
    color: var(--color-text-dim);
}

.bar-data-primary {
    background: rgba(37, 99, 235, 0.2);
    color: var(--color-accent-bright);
}

.bar-ui-secondary {
    background: rgba(239, 68, 68, 0.08);
    color: var(--color-text-dim);
}

.comparison-caption {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-accent-bright);
    text-align: center;
    margin-top: var(--space-4);
}

/* ============================================
   INFRASTRUCTURE SECTION
   ============================================ */
.infra-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
}

.infra-item {
    padding: var(--space-6);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    text-align: center;
    transition: all 0.3s ease;
}

.infra-item:hover {
    border-color: var(--color-border-accent);
}

.infra-item h4 {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-light);
    margin-bottom: var(--space-2);
}

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

/* ============================================
   SERVICES — Feature Cards
   ============================================ */
.service-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
}

.service-card {
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.service-card ul {
    list-style: none;
    padding: 0;
    margin-top: var(--space-4);
}

.service-card li {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    padding: var(--space-2) 0;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.service-card li:last-child {
    border-bottom: none;
}

.service-card li::before {
    content: '→';
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
}

/* ============================================
   PRICING MODELS
   ============================================ */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);
}

.pricing-card {
    padding: var(--space-6);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    text-align: center;
    transition: all 0.3s ease;
}

.pricing-card:hover {
    border-color: var(--color-border-accent);
    background: var(--color-bg-card-hover);
}

.pricing-card h3 {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--color-accent-bright);
    margin-bottom: var(--space-3);
}

.pricing-card p {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: 1.5;
    margin: 0;
}

/* ============================================
   CONTACT PAGE
   ============================================ */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    align-items: start;
}

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

.contact-main h2 {
    font-size: var(--text-2xl);
    color: var(--color-text-light);
    margin-bottom: var(--space-4);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--color-accent-soft);
    border: 1px solid var(--color-border-accent);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
}

.contact-method h3 {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-dim);
    margin-bottom: var(--space-1);
}

.contact-method a,
.contact-method p {
    font-size: var(--text-base);
    color: var(--color-text-light);
    margin: 0;
}

.contact-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.contact-sidebar .card h3 {
    font-size: var(--text-base);
    color: var(--color-accent-bright);
    margin-bottom: var(--space-3);
}

.contact-sidebar .card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.contact-sidebar .card li {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    padding: var(--space-2) 0;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.contact-sidebar .card li:last-child {
    border-bottom: none;
}

.contact-sidebar .card li::before {
    content: '→';
    font-family: var(--font-mono);
    color: var(--color-accent);
    font-size: var(--text-xs);
}

/* FAQ */
.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

.faq-card {
    padding: var(--space-6);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.faq-card:hover {
    border-color: var(--color-border-accent);
}

.faq-card h4 {
    font-size: var(--text-base);
    color: var(--color-text-light);
    margin-bottom: var(--space-3);
}

.faq-card p {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: 1.6;
    margin: 0;
}

/* ============================================
   APPROACH PAGE — Philosophy
   ============================================ */
.philosophy-section {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--space-12);
    align-items: center;
}

.philosophy-visual {
    position: relative;
    height: 400px;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.philosophy-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(0.5) brightness(0.6);
}

.philosophy-visual::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.15), transparent);
}

.philosophy-overlay {
    position: absolute;
    bottom: var(--space-8);
    left: var(--space-8);
    right: var(--space-8);
    z-index: 2;
}

.philosophy-overlay .big-text {
    font-family: var(--font-mono);
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 700;
    color: var(--color-text-light);
    line-height: 1;
    letter-spacing: 0.05em;
}

.philosophy-overlay .sub-text {
    font-size: var(--text-lg);
    color: var(--color-text-muted);
    margin-top: var(--space-2);
}

.philosophy-content .lead {
    font-size: var(--text-xl);
    color: var(--color-text);
    line-height: 1.6;
}

.philosophy-quote {
    font-style: italic;
    color: var(--color-text-muted);
    padding-left: var(--space-4);
    border-left: 2px solid var(--color-accent);
    margin-top: var(--space-6);
}

/* Infra detail lists */
.infra-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
}

.infra-detail-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-6);
}

.infra-detail-card h3 {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-accent-bright);
    margin-bottom: var(--space-4);
}

.infra-detail-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.infra-detail-card li {
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--color-border);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.infra-detail-card li:last-child {
    border-bottom: none;
}

.infra-detail-card li strong {
    color: var(--color-text);
    font-weight: 600;
}

/* ============================================
   CTA SECTIONS
   ============================================ */
.cta-section {
    text-align: center;
    padding: 5rem 0;
    position: relative;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 60% 50% at 50% 50%, rgba(37, 99, 235, 0.06), transparent);
    pointer-events: none;
}

.cta-section h2 {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 700;
    color: var(--color-text-light);
    margin-bottom: var(--space-4);
}

.cta-section .lead {
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   DOCS INDEX — Overview Cards
   ============================================ */
.docs-overview-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.docs-overview-card {
    display: flex;
    align-items: flex-start;
    gap: var(--space-6);
    padding: var(--space-8);
    text-decoration: none;
}

.docs-overview-card:hover {
    text-decoration: none;
}

.docs-overview-num {
    font-family: var(--font-mono);
    font-size: var(--text-2xl);
    font-weight: 700;
    color: rgba(37, 99, 235, 0.25);
    min-width: 3rem;
    text-align: center;
    flex-shrink: 0;
    line-height: 1.3;
}

.docs-overview-body {
    flex: 1;
    min-width: 0;
}

.docs-overview-title {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-text-light);
    margin: 0 0 var(--space-3) 0;
}

.docs-overview-intro {
    font-size: var(--text-base);
    color: var(--color-text-muted);
    line-height: 1.7;
    margin: 0 0 var(--space-3) 0;
}

.docs-overview-meta {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-text-dim);
    letter-spacing: 0.02em;
}

.docs-overview-card .doc-list-arrow {
    flex-shrink: 0;
    color: var(--color-text-dim);
    margin-top: var(--space-2);
    transition: transform 0.2s ease, color 0.2s ease;
}

.docs-overview-card:hover .doc-list-arrow {
    color: var(--color-accent);
    transform: translateX(3px);
}

/* ============================================
   DOCS INDEX — Legacy List (kept for reference)
   ============================================ */
.doc-group-header {
    margin-bottom: var(--space-4);
}

.doc-list {
    display: flex;
    flex-direction: column;
    gap: 1px;
    background: var(--color-border);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.doc-list-item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-6);
    background: var(--color-bg-card);
    text-decoration: none;
    transition: all 0.2s ease;
}

.doc-list-item:hover {
    background: var(--color-bg-card-hover);
    text-decoration: none;
}

.doc-list-num {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-accent);
    min-width: 2rem;
    text-align: center;
    flex-shrink: 0;
}

.doc-list-body {
    flex: 1;
    min-width: 0;
}

.doc-list-title {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-text-light);
    margin: 0;
    line-height: 1.3;
}

.doc-list-desc {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin: var(--space-1) 0 0;
    line-height: 1.4;
}

.doc-list-arrow {
    color: var(--color-text-dim);
    flex-shrink: 0;
    transition: transform 0.2s ease, color 0.2s ease;
}

.doc-list-item:hover .doc-list-arrow {
    color: var(--color-accent);
    transform: translateX(3px);
}

/* ============================================
   DOCS VIEWER — Sidebar + Content
   ============================================ */
.theme-t1k .doc-sidebar {
    background: var(--color-bg-alt);
    border-right-color: var(--color-border);
}

.theme-t1k .doc-nav .nav-link.active {
    background: var(--color-accent);
    color: #fff;
}

.doc-sidebar-back {
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--color-border);
    margin-top: auto;
}

.doc-sidebar-back .nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-text-dim);
}

.doc-sidebar-back .nav-link:hover {
    color: var(--color-accent-bright);
}

/* Sidebar as flex column to push back-link to bottom */
.theme-t1k .doc-sidebar {
    display: flex;
    flex-direction: column;
}

/* ============================================
   MARKDOWN CONTENT — Dark theme
   ============================================ */
.theme-t1k .markdown-content h1 {
    border-bottom-color: var(--color-accent);
}

.theme-t1k .markdown-content h2 {
    color: var(--color-accent-bright);
}

.theme-t1k .markdown-content code {
    background: var(--color-bg-card);
}

.theme-t1k .markdown-content pre {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
}

.theme-t1k .markdown-content blockquote {
    border-left-color: var(--color-accent);
    color: var(--color-text-muted);
}

.theme-t1k .markdown-content th {
    background: var(--color-bg-card);
}

.theme-t1k .markdown-content th,
.theme-t1k .markdown-content td {
    border-color: var(--color-border);
}

@media (max-width: 1024px) {
    .doc-sidebar-back {
        padding: var(--space-3) var(--space-4);
    }
}

/* ============================================
   FOOTER
   ============================================ */
.theme-t1k .footer {
    background: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    margin-top: 0;
}

.theme-t1k .footer-text {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    letter-spacing: 0.05em;
    color: var(--color-text-dim);
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fade-up {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-in {
    animation: fade-up 0.6s ease forwards;
    opacity: 0;
}

.animate-in:nth-child(1) { animation-delay: 0.1s; }
.animate-in:nth-child(2) { animation-delay: 0.2s; }
.animate-in:nth-child(3) { animation-delay: 0.3s; }
.animate-in:nth-child(4) { animation-delay: 0.4s; }

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .hero-visual {
        display: none;
    }

    .philosophy-section {
        grid-template-columns: 1fr;
    }

    .philosophy-visual {
        height: 300px;
    }

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

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

@media (max-width: 768px) {
    .theme-t1k .hero {
        min-height: 70vh;
    }

    .value-grid,
    .infra-grid {
        grid-template-columns: 1fr;
    }

    .case-grid,
    .service-grid,
    .comparison-grid,
    .faq-grid,
    .infra-detail-grid {
        grid-template-columns: 1fr;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .comparison-col.negative {
        border-right: none;
        border-bottom: 1px solid var(--color-border);
    }

    .process-timeline {
        padding-left: 2.5rem;
    }

    .theme-t1k .nav {
        gap: var(--space-3);
    }

    .theme-t1k .nav-link {
        font-size: var(--text-xs);
    }
}

/* ============================================
   MOBILE NAV
   ============================================ */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-text);
    cursor: pointer;
    padding: var(--space-2);
}

@media (max-width: 640px) {
    .nav-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .theme-t1k .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        padding: var(--space-4);
        gap: 0;
    }

    .theme-t1k .nav.open {
        display: flex;
    }

    .theme-t1k .nav .nav-link {
        padding: var(--space-3) var(--space-4);
        border-bottom: 1px solid var(--color-border);
    }

    .theme-t1k .nav .nav-link:last-child {
        border-bottom: none;
    }
}