/* ============================================
   MAICORP — Premium Design System
   Brand: Sleek Tech / Corporate Elite
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

/* --- Design Tokens --- */
:root {
    /* Primary Palette — Deep navy conveys trust & authority */
    --color-primary-900: #0a1628;
    --color-primary-800: #0f2140;
    --color-primary-700: #152d58;
    --color-primary-600: #1b3970;
    --color-primary-500: #1e4d8f;

    /* Accent — Electric blue for CTAs & highlights */
    --color-accent-500: #2563eb;
    --color-accent-400: #3b82f6;
    --color-accent-300: #60a5fa;
    --color-accent-200: #93c5fd;
    --color-accent-100: #dbeafe;

    /* Neutrals */
    --color-white: #ffffff;
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;

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

    /* Surfaces */
    --surface-primary: var(--color-white);
    --surface-secondary: var(--color-gray-50);
    --surface-elevated: var(--color-white);
    --surface-dark: var(--color-primary-900);

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

    /* Font Sizes — Fluid scale */
    --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;
    --text-7xl: 4.5rem;

    /* Font Weights */
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;

    /* Spacing — 4px base grid */
    --space-0: 0;
    --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;
    --space-32: 8rem;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* Shadows — Subtle, layered */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 0 3px rgba(37, 99, 235, 0.15);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Layout */
    --container-max: 1200px;
    --container-narrow: 720px;
    --container-wide: 1400px;
    --header-height: 72px;

    /* Z-index scale */
    --z-base: 0;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-overlay: 300;
    --z-modal: 400;
    --z-toast: 500;
}

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

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

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    font-weight: var(--font-normal);
    line-height: 1.7;
    color: var(--color-gray-800);
    background-color: var(--surface-primary);
    overflow-x: hidden;
}

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

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

ul, ol {
    list-style: none;
}

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

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

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

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    z-index: var(--z-sticky);
    transition: all var(--transition-base);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-sm);
}

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

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--color-primary-900);
    letter-spacing: -0.02em;
    text-decoration: none;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--color-accent-500), var(--color-primary-700));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-weight: var(--font-extrabold);
    font-size: var(--text-sm);
    letter-spacing: 0.05em;
}

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

.nav a {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-gray-600);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    position: relative;
}

.nav a:hover,
.nav a.active {
    color: var(--color-primary-900);
    background: var(--color-gray-100);
}

.nav a.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: var(--space-4);
    right: var(--space-4);
    height: 2px;
    background: var(--color-accent-500);
    border-radius: var(--radius-full);
}

/* CTA Button in Header */
.header-cta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
    color: var(--color-gray-700);
}

.mobile-menu-toggle svg {
    width: 24px;
    height: 24px;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    line-height: 1.5;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255,255,255,0.1) 0%, transparent 100%);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.btn:hover::after {
    opacity: 1;
}

.btn--primary {
    background: var(--color-accent-500);
    color: var(--color-white);
    box-shadow: 0 1px 2px rgba(37, 99, 235, 0.2), inset 0 1px 0 rgba(255,255,255,0.1);
}

.btn--primary:hover {
    background: var(--color-accent-400);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3), inset 0 1px 0 rgba(255,255,255,0.1);
    transform: translateY(-1px);
}

.btn--primary:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(37, 99, 235, 0.2);
}

.btn--secondary {
    background: var(--color-white);
    color: var(--color-gray-700);
    border-color: var(--color-gray-200);
    box-shadow: var(--shadow-xs);
}

.btn--secondary:hover {
    background: var(--color-gray-50);
    border-color: var(--color-gray-300);
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
}

.btn--ghost {
    background: transparent;
    color: var(--color-gray-600);
}

.btn--ghost:hover {
    background: var(--color-gray-100);
    color: var(--color-gray-900);
}

.btn--dark {
    background: var(--color-primary-900);
    color: var(--color-white);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.btn--dark:hover {
    background: var(--color-primary-800);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    transform: translateY(-1px);
}

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

.btn--sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-xs);
}

.btn--icon {
    padding: var(--space-3);
    border-radius: var(--radius-md);
}

.btn--outline-white {
    background: transparent;
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn--outline-white:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--color-primary-900);
    overflow: hidden;
    padding-top: var(--header-height);
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(37, 99, 235, 0.15) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 80% 50%, rgba(37, 99, 235, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse 50% 30% at 20% 80%, rgba(30, 77, 143, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: var(--space-24) 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgba(37, 99, 235, 0.15);
    border: 1px solid rgba(37, 99, 235, 0.25);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-accent-300);
    margin-bottom: var(--space-8);
}

.hero-badge .dot {
    width: 6px;
    height: 6px;
    background: var(--color-accent-400);
    border-radius: var(--radius-full);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero h1 {
    font-size: clamp(var(--text-4xl), 5vw, var(--text-7xl));
    font-weight: var(--font-extrabold);
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--color-white);
    margin-bottom: var(--space-6);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.hero h1 .gradient-text {
    background: linear-gradient(135deg, var(--color-accent-300), var(--color-accent-200));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(var(--text-lg), 2vw, var(--text-xl));
    color: var(--color-gray-400);
    max-width: 600px;
    margin: 0 auto var(--space-10);
    line-height: 1.7;
    font-weight: var(--font-light);
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    flex-wrap: wrap;
    margin-bottom: var(--space-16);
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-16);
    padding-top: var(--space-12);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-stat {
    text-align: center;
}

.hero-stat-value {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    color: var(--color-white);
    letter-spacing: -0.02em;
}

.hero-stat-label {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    margin-top: var(--space-1);
    font-weight: var(--font-medium);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* ============================================
   SECTION SYSTEM
   ============================================ */
.section {
    padding: var(--space-24) 0;
}

.section--sm {
    padding: var(--space-16) 0;
}

.section--dark {
    background: var(--color-primary-900);
    color: var(--color-white);
}

.section--gray {
    background: var(--color-gray-50);
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto var(--space-16);
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-accent-500);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-4);
}

.section--dark .section-label {
    color: var(--color-accent-300);
}

.section-title {
    font-size: clamp(var(--text-3xl), 3.5vw, var(--text-5xl));
    font-weight: var(--font-bold);
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--color-gray-900);
    margin-bottom: var(--space-4);
}

.section--dark .section-title {
    color: var(--color-white);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--color-gray-500);
    line-height: 1.7;
}

.section--dark .section-subtitle {
    color: var(--color-gray-400);
}

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

.service-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    transition: all var(--transition-slow);
    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-500), var(--color-accent-300));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.service-card:hover {
    border-color: var(--color-accent-200);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

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

.service-icon {
    width: 48px;
    height: 48px;
    background: var(--color-accent-100);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-6);
    color: var(--color-accent-500);
}

.service-icon svg {
    width: 24px;
    height: 24px;
    stroke-width: 1.5;
}

.service-card h3 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-3);
    letter-spacing: -0.01em;
}

.service-card p {
    font-size: var(--text-base);
    color: var(--color-gray-500);
    line-height: 1.7;
}

/* ============================================
   PROJECT CARDS
   ============================================ */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
}

.project-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-slow);
}

.project-card:hover {
    border-color: var(--color-gray-300);
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.project-card-image {
    height: 200px;
    background: linear-gradient(135deg, var(--color-primary-800), var(--color-primary-600));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.project-card-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 30px 30px;
}

.project-card-image span {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: rgba(255,255,255,0.15);
    letter-spacing: -0.02em;
    z-index: 1;
}

.project-card-body {
    padding: var(--space-6) var(--space-8);
}

.project-card-body h3 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-2);
}

.project-card-body p {
    font-size: var(--text-base);
    color: var(--color-gray-500);
    line-height: 1.7;
    margin-bottom: var(--space-4);
}

.project-status {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-status--launched {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
}

.project-status--development {
    background: rgba(245, 158, 11, 0.1);
    color: var(--color-warning);
}

.project-status .status-dot {
    width: 6px;
    height: 6px;
    border-radius: var(--radius-full);
    background: currentColor;
}

/* ============================================
   ABOUT / WHY CHOOSE US
   ============================================ */
.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.value-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    transition: all var(--transition-slow);
    text-align: center;
}

.value-card:hover {
    border-color: var(--color-accent-200);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.value-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--color-accent-100), rgba(37, 99, 235, 0.08));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-5);
    color: var(--color-accent-500);
}

.value-icon svg {
    width: 28px;
    height: 28px;
    stroke-width: 1.5;
}

.value-card h3 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-2);
}

.value-card p {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    line-height: 1.7;
}

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.testimonial-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    transition: all var(--transition-slow);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-lg);
}

.testimonial-stars {
    display: flex;
    gap: var(--space-1);
    margin-bottom: var(--space-4);
    color: var(--color-warning);
}

.testimonial-text {
    font-size: var(--text-base);
    color: var(--color-gray-700);
    line-height: 1.8;
    margin-bottom: var(--space-6);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.testimonial-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-accent-200), var(--color-accent-400));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-bold);
    font-size: var(--text-sm);
    color: var(--color-white);
}

.testimonial-author-info h4 {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-gray-900);
}

.testimonial-author-info p {
    font-size: var(--text-xs);
    color: var(--color-gray-500);
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
    background: var(--color-primary-900);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 50% at 50% 0%, rgba(37, 99, 235, 0.12) 0%, transparent 60%);
    pointer-events: none;
}

.cta-section .container {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: var(--space-24) 0;
}

.cta-section h2 {
    font-size: clamp(var(--text-3xl), 3vw, var(--text-5xl));
    font-weight: var(--font-bold);
    color: var(--color-white);
    margin-bottom: var(--space-4);
    letter-spacing: -0.02em;
}

.cta-section p {
    font-size: var(--text-lg);
    color: var(--color-gray-400);
    max-width: 560px;
    margin: 0 auto var(--space-10);
}

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

/* ============================================
   CONTACT FORM
   ============================================ */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: start;
}

.contact-info h2 {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-4);
    letter-spacing: -0.02em;
}

.contact-info > p {
    font-size: var(--text-lg);
    color: var(--color-gray-500);
    margin-bottom: var(--space-10);
    line-height: 1.7;
}

.contact-detail {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.contact-detail-icon {
    width: 44px;
    height: 44px;
    background: var(--color-accent-100);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent-500);
    flex-shrink: 0;
}

.contact-detail-icon svg {
    width: 20px;
    height: 20px;
    stroke-width: 1.5;
}

.contact-detail h4 {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-1);
}

.contact-detail p,
.contact-detail a {
    font-size: var(--text-base);
    color: var(--color-gray-500);
}

.contact-detail a:hover {
    color: var(--color-accent-500);
}

/* Form */
.form-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    padding: var(--space-10);
    box-shadow: var(--shadow-lg);
}

.form-card h3 {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-6);
}

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

.form-group label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-gray-700);
    margin-bottom: var(--space-2);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-family: var(--font-sans);
    font-size: var(--text-base);
    color: var(--color-gray-900);
    background: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-gray-400);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--color-accent-500);
    box-shadow: var(--shadow-glow);
}

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

/* ============================================
   PRICING
   ============================================ */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    transition: all var(--transition-slow);
    position: relative;
}

.pricing-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.pricing-card--featured {
    border-color: var(--color-accent-500);
    box-shadow: var(--shadow-lg);
}

.pricing-card--featured::before {
    content: 'Most Popular';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--color-accent-500);
    color: var(--color-white);
    padding: var(--space-1) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-card h3 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-2);
}

.pricing-card .price {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-2);
    letter-spacing: -0.02em;
}

.pricing-card .price span {
    font-size: var(--text-base);
    font-weight: var(--font-normal);
    color: var(--color-gray-500);
}

.pricing-card .price-desc {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--color-gray-200);
}

.pricing-features {
    margin-bottom: var(--space-8);
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    margin-bottom: var(--space-3);
}

.pricing-features li svg {
    width: 18px;
    height: 18px;
    color: var(--color-success);
    flex-shrink: 0;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--color-gray-900);
    color: var(--color-gray-400);
    padding: var(--space-16) 0 var(--space-8);
}

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

.footer-brand .logo {
    color: var(--color-white);
    margin-bottom: var(--space-4);
}

.footer-brand p {
    font-size: var(--text-sm);
    line-height: 1.7;
    max-width: 280px;
}

.footer-col h4 {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-4);
}

.footer-col a {
    display: block;
    font-size: var(--text-sm);
    color: var(--color-gray-400);
    margin-bottom: var(--space-3);
    transition: color var(--transition-fast);
}

.footer-col a:hover {
    color: var(--color-white);
}

.footer-bottom {
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: var(--text-sm);
}

.footer-social {
    display: flex;
    gap: var(--space-4);
}

.footer-social a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-md);
    color: var(--color-gray-400);
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--color-white);
}

.footer-social a svg {
    width: 18px;
    height: 18px;
}

/* ============================================
   PAGE HERO (Sub-pages)
   ============================================ */
.page-hero {
    background: var(--color-primary-900);
    padding: calc(var(--header-height) + var(--space-16)) 0 var(--space-16);
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(37, 99, 235, 0.12) 0%, transparent 60%);
    pointer-events: none;
}

.page-hero .container {
    position: relative;
    z-index: 1;
    text-align: center;
}

.page-hero h1 {
    font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl));
    font-weight: var(--font-bold);
    color: var(--color-white);
    margin-bottom: var(--space-4);
    letter-spacing: -0.02em;
}

.page-hero p {
    font-size: var(--text-lg);
    color: var(--color-gray-400);
    max-width: 560px;
    margin: 0 auto;
}

/* ============================================
   ANIMATIONS
   ============================================ */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 100ms; }
.fade-in-delay-2 { transition-delay: 200ms; }
.fade-in-delay-3 { transition-delay: 300ms; }
.fade-in-delay-4 { transition-delay: 400ms; }

/* Stagger children */
.stagger-children > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.stagger-children.visible > *:nth-child(1) { transition-delay: 0ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(2) { transition-delay: 80ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(3) { transition-delay: 160ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(4) { transition-delay: 240ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(5) { transition-delay: 320ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(6) { transition-delay: 400ms; opacity: 1; transform: translateY(0); }

/* ============================================
   RESPONSIVE — TABLET
   ============================================ */
@media (max-width: 1024px) {
    .services-grid,
    .values-grid,
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .hero-stats {
        gap: var(--space-10);
    }
}

/* ============================================
   RESPONSIVE — MOBILE
   ============================================ */
@media (max-width: 768px) {
    :root {
        --header-height: 64px;
    }

    .nav {
        display: none;
    }

    .nav.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-white);
        border-bottom: 1px solid var(--color-gray-200);
        padding: var(--space-4) var(--space-6);
        box-shadow: var(--shadow-lg);
    }

    .nav.open a {
        padding: var(--space-3) var(--space-4);
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .header-cta .btn {
        display: none;
    }

    .hero .container {
        padding: var(--space-16) 0;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--space-6);
        padding-top: var(--space-8);
    }

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

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

    .section {
        padding: var(--space-16) 0;
    }

    .section-header {
        margin-bottom: var(--space-10);
    }

    .services-grid,
    .projects-grid,
    .values-grid,
    .testimonials-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .contact-layout {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }

    .cta-section .container {
        padding: var(--space-16) 0;
    }

    .container {
        padding: 0 var(--space-5);
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}