/* ============================================
   STABLE BASE — Design System & Styles
   ============================================ */

/* --- CSS Variables --- */
:root {
    /* Typography */
    --font-body: 'Raleway', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Colors — Light Theme */
    --bg-primary: #ffffff;
    --bg-secondary: #f5f7ff;
    --bg-tertiary: #eef0f8;
    --bg-card: #ffffff;
    --bg-card-hover: #f3f4fc;

    --text-primary: #111113;
    --text-secondary: #2a2a32;
    --text-tertiary: #52525b;

    /* Accent — Royal Blue / Deep Indigo (DeepSecret palette) */
    --accent-primary: #4f46e5;
    --accent-secondary: #4338ca;
    --accent-tertiary: #3730a3;
    --accent-light: #818cf8;
    --accent-lighter: #a5b4fc;
    --accent-hover: #3730a3;

    /* Accent alpha scales */
    --accent-a4: rgba(79, 70, 229, 0.04);
    --accent-a6: rgba(79, 70, 229, 0.06);
    --accent-a8: rgba(79, 70, 229, 0.08);
    --accent-a10: rgba(79, 70, 229, 0.10);
    --accent-a12: rgba(79, 70, 229, 0.12);
    --accent-a15: rgba(79, 70, 229, 0.15);
    --accent-a25: rgba(79, 70, 229, 0.25);
    --accent-a35: rgba(79, 70, 229, 0.35);

    /* Status colors */
    --color-green: #16a34a;
    --color-green-bg: rgba(79, 70, 229, 0.08);
    --color-green-border: rgba(79, 70, 229, 0.15);
    --color-amber: #d97706;
    --color-amber-bg: rgba(217, 119, 6, 0.08);
    --color-amber-border: rgba(217, 119, 6, 0.15);
    --color-rose: #e11d48;
    --color-rose-bg: rgba(225, 29, 72, 0.08);
    --color-rose-border: rgba(225, 29, 72, 0.15);

    /* Borders */
    --border-primary: rgba(0, 0, 0, 0.07);
    --border-secondary: rgba(0, 0, 0, 0.12);
    --border-hover: var(--accent-a35);

    /* Shadows */
    --shadow-sm: 0 1px 3px var(--accent-a25), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px var(--accent-a6);
    --shadow-lg: 0 8px 30px var(--accent-a8);
    --shadow-hover: 0 8px 30px var(--accent-a6);

    /* Spacing */
    --section-padding: 64px;
    --container-max: 1320px;
    --nav-height: 72px;

    /* Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 100px;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
    --duration-fast: 150ms;
    --duration-normal: 300ms;
    --duration-slow: 500ms;
}

/* --- Top accent gradient line --- */
.top-accent {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #4f46e5, #4338ca, var(--accent-light), #4338ca, #4f46e5);
    z-index: 1001;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background: #ffffff;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Noise texture */
.noise {
    position: fixed;
    inset: 0;
    z-index: 9999;
    pointer-events: none;
    opacity: 0.015;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px 256px;
}

/* --- Layout --- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

a {
    color: inherit;
    text-decoration: none;
}

::selection {
    background: var(--accent-a15);
    color: var(--text-primary);
}

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-primary);
    transition: box-shadow var(--duration-normal) ease;
}

.nav.scrolled {
    box-shadow: 0 1px 8px rgba(0, 0, 0, 0.06);
}

.nav-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0;
}

.logo-pronounce {
    position: relative;
}

.nav-logo::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 28px;
    height: 100%;
    background: linear-gradient(
        110deg,
        transparent 0%,
        transparent 35%,
        rgba(255, 255, 255, 0.5) 50%,
        transparent 65%,
        transparent 100%
    );
    background-size: 300% 100%;
    animation: logo-shimmer 4s ease-in-out infinite;
    pointer-events: none;
    border-radius: 4px;
}

@keyframes logo-shimmer {
    0%, 100% { background-position: 200% center; }
    50% { background-position: -100% center; }
}

.pronounce-tip {
    position: absolute;
    bottom: -36px;
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    background: #fbbf24;
    color: #422006;
    font-size: 12px;
    font-weight: 600;
    font-family: var(--font-mono);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    box-shadow: 0 2px 8px rgba(251, 191, 36, 0.3);
}

.pronounce-tip::before {
    content: '';
    position: absolute;
    top: -4px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-bottom: 5px solid #fbbf24;
}

.logo-pronounce:hover .pronounce-tip {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.logo-wordmark {
    height: 28px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    margin-left: auto;
}

.nav-links a {
    font-size: 14px;
    font-weight: 450;
    color: var(--text-secondary);
    transition: color var(--duration-fast) ease;
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 1.5px;
    background: var(--text-secondary);
    border-radius: 2px;
    transition: all var(--duration-normal) var(--ease-out);
}

.nav-toggle.active span:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobile menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--duration-normal) ease;
}

.mobile-menu.active {
    opacity: 1;
    pointer-events: all;
}

.mobile-menu-inner {
    display: flex;
    flex-direction: column;
    padding: 32px 24px;
    gap: 8px;
}

.mobile-link {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 12px 0;
    border-bottom: 1px solid var(--border-primary);
    transition: color var(--duration-fast) ease;
}

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

.mobile-link.btn {
    margin-top: 16px;
    border-bottom: none;
    text-align: center;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: inherit;
    font-weight: 500;
    font-size: 14px;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
    white-space: nowrap;
    text-decoration: none;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 15px;
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-a15);
    box-shadow: 0 1px 3px var(--accent-a25), 0 1px 2px rgba(0, 0, 0, 0.06);
}

.btn-primary:hover {
    background: var(--accent-hover);
    box-shadow: 0 4px 16px var(--accent-a25), 0 1px 3px rgba(0, 0, 0, 0.08);
    transform: translateY(-1px);
}

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

.btn-ghost:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.03);
    border-color: rgba(0, 0, 0, 0.15);
}

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

.btn-outline:hover {
    background: rgba(0, 0, 0, 0.03);
    border-color: rgba(0, 0, 0, 0.2);
    transform: translateY(-1px);
}

/* --- Hero Section --- */
.hero {
    position: relative;
    padding-top: calc(var(--nav-height) + 48px);
    padding-bottom: 48px;
    overflow: hidden;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
    border-radius: var(--radius-xl);
    background:
        radial-gradient(ellipse 60% 60% at 50% 50%, transparent 0%, rgba(255, 255, 255, 0.85) 65%, #ffffff 100%),
        radial-gradient(ellipse 55% 55% at 50% 50%, var(--accent-a8) 0%, var(--accent-a4) 50%, transparent 75%),
        radial-gradient(circle at 1px 1px, rgba(79, 70, 229, 0.04) 1px, transparent 0),
        var(--bg-secondary);
    background-size: 100% 100%, 100% 100%, 32px 32px, 100% 100%;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.hero-grid-bg,
.hero-glow {
    display: none;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px 6px 10px;
    background: linear-gradient(
        100deg,
        var(--accent-a8) 0%,
        var(--accent-a8) 40%,
        var(--accent-a15) 50%,
        var(--accent-a8) 60%,
        var(--accent-a8) 100%
    );
    background-size: 300% 100%;
    border: 1px solid var(--accent-a15);
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 500;
    color: var(--accent-tertiary);
    margin-bottom: 24px;
    animation: shimmer-badge 5s ease-in-out infinite;
}

@keyframes shimmer-badge {
    0%, 100% { background-position: 100% center; }
    50% { background-position: -100% center; }
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-primary);
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--accent-a35); }
    50% { opacity: 0.8; box-shadow: 0 0 0 6px rgba(79, 70, 229, 0); }
}

.hero-title {
    font-size: clamp(40px, 5vw, 60px);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}

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

.typing-wrapper {
    display: inline;
    font-size: clamp(28px, 3.5vw, 42px);
}

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

.typing-cursor {
    color: var(--accent-primary);
    font-weight: 300;
    animation: blink-cursor 0.7s step-end infinite;
}

@keyframes blink-cursor {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.hero-tagline {
    display: block;
    font-size: clamp(16px, 2vw, 20px);
    font-weight: 400;
    color: var(--text-secondary);
    letter-spacing: -0.01em;
    line-height: 1.5;
    margin-top: 12px;
    -webkit-text-fill-color: var(--text-secondary);
    background: none;
}

.hero-subtitle {
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-secondary);
    max-width: 500px;
    margin-bottom: 32px;
}

.hero-cta {
    display: flex;
    gap: 12px;
}

/* Hero expertise cards */
.hero-visual {
    position: relative;
    z-index: 2;
}

.hero-card-stack {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.hero-expertise-card {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    padding: 16px 20px;
    transition: all var(--duration-normal) var(--ease-out);
}

.hero-expertise-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateX(-4px);
    box-shadow: 0 8px 30px var(--accent-a8);
}

.hero-expertise-card h4 {
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 2px;
}

.hero-expertise-card p {
    font-size: 13px;
    color: var(--text-tertiary);
    line-height: 1.4;
}

.hex-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
}

.hex-icon--blue {
    background: var(--accent-a8);
    border: 1px solid var(--accent-a15);
    color: var(--accent-primary);
}

.hex-icon--violet {
    background: var(--accent-a8);
    border: 1px solid var(--accent-a15);
    color: var(--accent-secondary);
}

.hex-icon--green {
    background: var(--color-green-bg);
    border: 1px solid var(--color-green-border);
    color: var(--color-green);
}

.hex-icon--amber {
    background: var(--color-amber-bg);
    border: 1px solid var(--color-amber-border);
    color: var(--color-amber);
}

.hex-icon--rose {
    background: var(--color-rose-bg);
    border: 1px solid var(--color-rose-border);
    color: var(--color-rose);
}


/* --- Section Shared --- */
.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 64px;
}

.section-title {
    font-size: clamp(28px, 3.5vw, 42px);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* --- Services Section --- */
.services {
    padding: var(--section-padding) 0;
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border-primary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.service-card {
    background: var(--bg-card);
    padding: 32px;
    transition: background var(--duration-normal) ease, box-shadow var(--duration-normal) ease;
    position: relative;
}

.service-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--accent-a4) 0%, transparent 60%);
    opacity: 0;
    transition: opacity var(--duration-normal) ease;
}

.service-card:hover {
    background: var(--bg-card-hover);
    box-shadow: 0 8px 30px var(--accent-a6);
}

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

.service-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-a8);
    border: 1px solid var(--accent-a12);
    border-radius: var(--radius-md);
    color: var(--accent-primary);
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.service-card h3 {
    font-size: 16px;
    font-weight: 650;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
    position: relative;
    z-index: 1;
}

.service-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.65;
    position: relative;
    z-index: 1;
}

/* --- Expertise Section --- */
.expertise {
    padding: var(--section-padding) 0;
    background:
        radial-gradient(ellipse 60% 60% at 50% 50%, transparent 0%, rgba(255, 255, 255, 0.85) 65%, #ffffff 100%),
        radial-gradient(ellipse 55% 55% at 50% 50%, var(--accent-a8) 0%, var(--accent-a4) 50%, transparent 75%),
        radial-gradient(circle at 1px 1px, rgba(79, 70, 229, 0.04) 1px, transparent 0),
        var(--bg-secondary);
    background-size: 100% 100%, 100% 100%, 32px 32px, 100% 100%;
    border-radius: var(--radius-xl);
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
    overflow: hidden;
}

.expertise-points {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px 48px;
    margin-bottom: 64px;
}

.expertise-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.expertise-check {
    width: 30px;
    height: 30px;
    min-width: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-green-bg);
    border: 1px solid var(--color-green-border);
    border-radius: var(--radius-sm);
    color: var(--color-green);
    margin-top: 2px;
}

.expertise-item strong {
    font-size: 15px;
    font-weight: 650;
    display: block;
    margin-bottom: 3px;
}

.expertise-item p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.65;
}

/* Engagement cards */
.engagement-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.engagement-card {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    padding: 32px;
    transition: all var(--duration-normal) ease;
    position: relative;
}

.engagement-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-a8);
}

.engagement-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-a8);
    border: 1px solid var(--accent-a12);
    border-radius: var(--radius-md);
    color: var(--accent-primary);
    margin-bottom: 16px;
}

.engagement-label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent-tertiary);
    margin-bottom: 8px;
}

.engagement-card h4 {
    font-size: 16px;
    font-weight: 650;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.engagement-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.65;
    margin-bottom: 12px;
}

.engagement-duration {
    display: inline-block;
    font-size: 12px;
    font-weight: 500;
    padding: 4px 10px;
    background: var(--accent-a4);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-full);
    color: var(--text-tertiary);
    font-family: var(--font-mono);
}

/* --- Approach Section --- */
.approach {
    padding: var(--section-padding) 0;
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.approach-timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
}

.approach-timeline::before {
    content: '';
    position: absolute;
    top: 28px;
    left: calc(12.5% + 12px);
    right: calc(12.5% + 12px);
    height: 1px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary), var(--accent-primary));
    opacity: 0.3;
}

.approach-step {
    text-align: center;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 1px solid var(--border-secondary);
    font-size: 16px;
    font-weight: 700;
    color: var(--accent-primary);
    font-family: var(--font-mono);
    margin-bottom: 24px;
    position: relative;
    z-index: 2;
    transition: all var(--duration-normal) ease;
}

.approach-step:hover .step-number {
    border-color: var(--accent-primary);
    background: var(--bg-primary);
    box-shadow: 0 0 0 4px var(--bg-primary), 0 0 20px var(--accent-a15);
}

.step-content h3 {
    font-size: 16px;
    font-weight: 650;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.step-content p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.65;
}

/* --- Transform / Before-After Section --- */
.transform-section {
    padding: 80px 0;
    background:
        radial-gradient(ellipse 60% 60% at 50% 50%, transparent 0%, rgba(255, 255, 255, 0.85) 65%, #ffffff 100%),
        radial-gradient(ellipse 55% 55% at 50% 50%, var(--accent-a8) 0%, var(--accent-a4) 50%, transparent 75%),
        radial-gradient(circle at 1px 1px, rgba(79, 70, 229, 0.04) 1px, transparent 0),
        var(--bg-secondary);
    background-size: 100% 100%, 100% 100%, 32px 32px, 100% 100%;
    border-radius: var(--radius-xl);
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
    overflow: hidden;
}

.transform-text {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
}

.transform-heading {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 14px;
}

.transform-heading--before {
    color: var(--text-tertiary);
}

.transform-heading--after {
    color: var(--accent-primary);
}

.transform-text-col p {
    font-size: 16px;
    line-height: 1.75;
    color: var(--text-secondary);
}

/* --- Case Studies Section --- */
.case-studies {
    padding: var(--section-padding) 0;
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.case-card {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    padding: 32px;
    display: flex;
    flex-direction: column;
    transition: border-color var(--duration-normal) ease, box-shadow var(--duration-normal) ease;
}

.case-card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 8px 30px var(--accent-a6);
}

.case-industry {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent-primary);
    background: var(--accent-a6);
    border: 1px solid var(--accent-a10);
    border-radius: var(--radius-full);
    padding: 4px 12px;
    margin-bottom: 16px;
    align-self: flex-start;
}

.case-card h3 {
    font-size: 16px;
    font-weight: 650;
    letter-spacing: -0.01em;
    line-height: 1.35;
    margin-bottom: 8px;
}

.case-card > p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.65;
    margin-bottom: 24px;
    flex: 1;
}

.case-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    padding-top: 20px;
    border-top: 1px solid var(--border-primary);
}

.case-metric {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.case-metric-value {
    font-size: 15px;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--text-primary);
    font-family: var(--font-mono);
}

.case-metric-label {
    font-size: 11px;
    color: var(--text-tertiary);
    font-weight: 450;
    line-height: 1.3;
}

/* --- Industries Section --- */
.industries {
    padding: var(--section-padding) 0;
    background:
        radial-gradient(ellipse 60% 60% at 50% 50%, transparent 0%, rgba(255, 255, 255, 0.85) 65%, #ffffff 100%),
        radial-gradient(ellipse 55% 55% at 50% 50%, var(--accent-a8) 0%, var(--accent-a4) 50%, transparent 75%),
        radial-gradient(circle at 1px 1px, rgba(79, 70, 229, 0.04) 1px, transparent 0),
        var(--bg-secondary);
    background-size: 100% 100%, 100% 100%, 32px 32px, 100% 100%;
    border-radius: var(--radius-xl);
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
    overflow: hidden;
}

.industries-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.industry-card {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    padding: 32px;
    transition: border-color var(--duration-normal) ease, box-shadow var(--duration-normal) ease;
}

.industry-card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 8px 30px var(--accent-a6);
}

.industry-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-a6);
    border: 1px solid var(--accent-a10);
    border-radius: var(--radius-md);
    color: var(--accent-primary);
    margin-bottom: 16px;
}

.industry-card h4 {
    font-size: 16px;
    font-weight: 650;
    letter-spacing: -0.01em;
    margin-bottom: 8px;
}

.industry-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.65;
}

/* --- Testimonials Section --- */
.testimonials {
    padding: var(--section-padding) 0;
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
    overflow: hidden;
}

.testimonials-grid {
    display: flex;
    gap: 20px;
    animation: marquee 60s linear infinite;
    width: max-content;
    padding-left: 24px;
}

.testimonials-grid:hover {
    animation-play-state: paused;
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    padding: 36px 32px 28px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    min-width: 380px;
    max-width: 380px;
    flex-shrink: 0;
    transition: all var(--duration-normal) ease;
}

.testimonial-card::before {
    content: "\201C";
    position: absolute;
    top: 20px;
    left: 28px;
    font-family: Georgia, serif;
    font-size: 64px;
    line-height: 1;
    color: var(--accent-primary);
    opacity: 0.12;
    pointer-events: none;
}

.testimonial-card:hover {
    border-color: var(--accent-a25);
    box-shadow: 0 12px 40px var(--accent-a8);
}

.testimonial-text {
    font-size: 13.5px;
    line-height: 1.75;
    color: var(--text-secondary);
    margin-bottom: 24px;
    padding-top: 16px;
    flex: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 14px;
    padding-top: 20px;
    border-top: 1px solid var(--border-primary);
    margin-top: auto;
}

.testimonial-author::before {
    content: "";
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-tertiary));
    opacity: 0.15;
    flex-shrink: 0;
}

.testimonial-author strong {
    display: block;
    font-size: 14px;
    font-weight: 650;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.testimonial-author span {
    display: block;
    font-size: 11.5px;
    color: var(--text-tertiary);
    margin-top: 2px;
    letter-spacing: 0.01em;
}

/* --- Contact Section --- */
.contact {
    padding: var(--section-padding) 0;
    background:
        radial-gradient(ellipse 60% 60% at 50% 50%, transparent 0%, rgba(255, 255, 255, 0.85) 65%, #ffffff 100%),
        radial-gradient(ellipse 55% 55% at 50% 50%, var(--accent-a8) 0%, var(--accent-a4) 50%, transparent 75%),
        radial-gradient(circle at 1px 1px, rgba(79, 70, 229, 0.04) 1px, transparent 0),
        var(--bg-secondary);
    background-size: 100% 100%, 100% 100%, 32px 32px, 100% 100%;
    border-radius: var(--radius-xl);
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.contact-details {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.contact-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: border-color var(--duration-normal) ease, box-shadow var(--duration-normal) ease;
}

.contact-item:hover {
    border-color: var(--border-hover);
    box-shadow: 0 4px 16px var(--accent-a6);
}

.contact-item svg {
    color: var(--accent-primary);
    flex-shrink: 0;
}

/* --- Footer --- */
.footer {
    padding: 40px 0 32px;
    background: var(--bg-primary);
}

.footer-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
}

.footer-nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

.footer-nav a {
    font-size: 13px;
    font-weight: 450;
    color: var(--text-tertiary);
    transition: color var(--duration-fast) ease;
}

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

.footer-social {
    display: flex;
    align-items: center;
    gap: 16px;
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
    transition: color var(--duration-fast) ease, background var(--duration-fast) ease;
}

.footer-social a:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.04);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-primary);
}

.footer-bottom p {
    font-size: 13px;
    color: var(--text-tertiary);
}

.footer-bottom-links {
    display: flex;
    gap: 24px;
}

.footer-bottom-links a {
    font-size: 13px;
    color: var(--text-tertiary);
    transition: color var(--duration-fast) ease;
}

.footer-bottom-links a:hover {
    color: var(--text-primary);
}

.footer-bottom code {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-tertiary);
    background: none;
}

/* --- Animations --- */
.animate-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.3s var(--ease-out) forwards;
}

.animate-in:nth-child(1) { animation-delay: 0s; }
.animate-in:nth-child(2) { animation-delay: 0.05s; }
.animate-in:nth-child(3) { animation-delay: 0.1s; }
.animate-in:nth-child(4) { animation-delay: 0.15s; }
.animate-in:nth-child(5) { animation-delay: 0.2s; }

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

[data-animate] {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.25s var(--ease-out), transform 0.25s var(--ease-out);
}

[data-animate].visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
    .gradient-text,
    .hero-badge,
    .typing-cursor {
        animation: none;
    }

    [data-animate] {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .animate-in {
        opacity: 1;
        transform: none;
        animation: none;
    }
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    :root {
        --section-padding: 52px;
    }

    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-card-stack {
        max-width: 560px;
    }

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

    .expertise-points {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .engagement-cards {
        grid-template-columns: 1fr;
    }

    .approach-timeline {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }

    .approach-timeline::before {
        display: none;
    }

    .cases-grid {
        grid-template-columns: 1fr;
        max-width: 560px;
        margin: 0 auto;
    }

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

    .transform-text {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 40px;
    }

    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .mobile-menu {
        display: block;
    }

    .nav-actions .btn {
        display: none;
    }

    .hero {
        min-height: auto;
        padding-top: calc(var(--nav-height) + 40px);
        padding-bottom: 40px;
    }

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

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

    .approach-timeline {
        grid-template-columns: 1fr;
    }

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

    .contact-details {
        flex-direction: column;
        align-items: center;
    }

    .footer-row {
        flex-direction: column;
        gap: 24px;
    }

    .footer-nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px 24px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .services,
    .expertise,
    .approach,
    .transform-section,
    .case-studies,
    .industries,
    .testimonials,
    .contact {
        margin-left: 8px;
        margin-right: 8px;
        border-radius: var(--radius-lg);
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-expertise-card {
        padding: 16px 18px;
    }

}