/* ============================================
   Touchmobi — Design System & Styles
   ============================================ */

/* --- Custom Properties --- */
:root {
  --color-bg: #0a0a0f;
  --color-bg-raised: #111118;
  --color-bg-card: rgba(255, 255, 255, 0.03);
  --color-bg-card-hover: rgba(255, 255, 255, 0.06);
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-hover: rgba(255, 255, 255, 0.15);
  --color-text: #e4e4e7;
  --color-text-secondary: #a1a1aa;
  --color-text-muted: #71717a;
  --color-purple: #7c3aed;
  --color-blue: #4f46e5;
  --color-teal: #06b6d4;
  --gradient-accent: linear-gradient(135deg, #7c3aed, #4f46e5, #06b6d4);
  --gradient-text: linear-gradient(135deg, #a78bfa, #818cf8, #22d3ee);
  --gradient-glow-1: radial-gradient(600px circle at 20% 30%, rgba(124, 58, 237, 0.12), transparent 60%);
  --gradient-glow-2: radial-gradient(400px circle at 80% 20%, rgba(79, 70, 229, 0.1), transparent 60%);
  --gradient-glow-3: radial-gradient(500px circle at 60% 80%, rgba(6, 182, 212, 0.08), transparent 60%);

  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.5rem;

  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;
  --spacing-section: 120px;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-card-hover: 0 8px 40px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 60px rgba(124, 58, 237, 0.15);

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --transition-spring: 500ms cubic-bezier(0.16, 1, 0.3, 1);

  --header-height: 72px;
  --max-width: 1200px;
}

/* --- 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-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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

/* --- Background Grid --- */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  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;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 30%, transparent 80%);
}

/* --- Container --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* --- Gradient Text --- */
.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================
   HEADER
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

.header--scrolled {
  background-color: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--color-border);
}

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

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 700;
  font-size: var(--font-size-lg);
  letter-spacing: -0.02em;
}

.logo__icon {
  border-radius: 8px;
  object-fit: contain;
}

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

/* Nav */
.nav__list {
  display: flex;
  align-items: center;
  gap: var(--spacing-2xl);
}

.nav__link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  border-radius: 1px;
  transition: width var(--transition-base);
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-text);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

.nav__link--cta {
  padding: 8px 20px;
  border-radius: var(--radius-xl);
  background: var(--gradient-accent);
  color: #fff;
  font-weight: 600;
}

.nav__link--cta::after {
  display: none;
}

.nav__link--cta:hover {
  opacity: 0.9;
  color: #fff;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-fast);
  transform-origin: center;
}

.hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + var(--spacing-4xl)) 0 var(--spacing-4xl);
  overflow: hidden;
}

.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.hero__glow--1 {
  width: 600px;
  height: 600px;
  top: -10%;
  left: -5%;
  background: var(--gradient-glow-1);
  animation: glow-drift 12s ease-in-out infinite alternate;
}

.hero__glow--2 {
  width: 400px;
  height: 400px;
  top: -5%;
  right: -5%;
  background: var(--gradient-glow-2);
  animation: glow-drift 15s ease-in-out infinite alternate-reverse;
}

.hero__glow--3 {
  width: 500px;
  height: 500px;
  bottom: -20%;
  left: 30%;
  background: var(--gradient-glow-3);
  animation: glow-drift 18s ease-in-out infinite alternate;
}

@keyframes glow-drift {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -20px) scale(1.1); }
  100% { transform: translate(-20px, 30px) scale(0.95); }
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 780px;
  margin: 0 auto;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 6px 16px;
  border-radius: var(--radius-xl);
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid rgba(124, 58, 237, 0.2);
  color: var(--color-purple);
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--spacing-xl);
}

.hero__badge svg {
  color: var(--color-purple);
}

.hero__title {
  font-size: clamp(var(--font-size-3xl), 6vw, var(--font-size-5xl));
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--spacing-md);
}

.hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  font-weight: 500;
}

.hero__desc {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-2xl);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-3xl);
  flex-wrap: wrap;
}

.hero__stats {
  display: flex;
  justify-content: center;
  gap: var(--spacing-3xl);
  padding-top: var(--spacing-2xl);
  border-top: 1px solid var(--color-border);
}

.hero__stat {
  text-align: center;
}

.hero__stat-number {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__stat-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Floating shapes */
.hero__float {
  position: absolute;
  z-index: 0;
  pointer-events: none;
  opacity: 0.5;
}

.hero__float--1 {
  top: 20%;
  right: 10%;
  animation: float 8s ease-in-out infinite;
}

.hero__float--2 {
  bottom: 25%;
  left: 8%;
  animation: float 10s ease-in-out infinite reverse;
}

.hero__float--3 {
  top: 35%;
  left: 15%;
  animation: float 12s ease-in-out infinite 2s;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  25% { transform: translateY(-20px) rotate(5deg); }
  50% { transform: translateY(-10px) rotate(-3deg); }
  75% { transform: translateY(-25px) rotate(2deg); }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 12px 28px;
  border-radius: var(--radius-xl);
  font-size: var(--font-size-sm);
  font-weight: 600;
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--gradient-accent);
  color: #fff;
  box-shadow: 0 4px 20px rgba(124, 58, 237, 0.3);
}

.btn--primary:hover {
  box-shadow: 0 8px 30px rgba(124, 58, 237, 0.45);
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn--ghost:hover {
  border-color: var(--color-border-hover);
  background: rgba(255, 255, 255, 0.04);
}

.btn--large {
  padding: 16px 36px;
  font-size: var(--font-size-base);
}

/* ============================================
   SECTIONS — Shared
   ============================================ */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-tag {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-teal);
  margin-bottom: var(--spacing-md);
}

.section-title {
  font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-4xl));
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-md);
}

.section-desc {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 560px;
  margin: 0 auto;
}

/* ============================================
   SERVICES
   ============================================ */
.services {
  position: relative;
  padding: var(--spacing-section) 0;
  z-index: 1;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

/* Card */
.card {
  padding: var(--spacing-2xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card--glass {
  background: var(--color-bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.card:hover {
  border-color: var(--color-border-hover);
  background: var(--color-bg-card-hover);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

.card__icon {
  margin-bottom: var(--spacing-lg);
}

.card__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.card__subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
}

.card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-lg);
}

.card__badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-xl);
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid rgba(124, 58, 237, 0.2);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-purple);
}

.card__features {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.card__features li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* ============================================
   PHILOSOPHY
   ============================================ */
.philosophy {
  padding: var(--spacing-section) 0;
  position: relative;
  z-index: 1;
}

.philosophy__inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.philosophy__content .section-tag {
  margin-bottom: var(--spacing-md);
}

.philosophy__content .section-title {
  margin-bottom: var(--spacing-2xl);
}

.philosophy__points {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.philosophy__point {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-lg);
  text-align: left;
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-base);
}

.philosophy__point:hover {
  border-color: var(--color-border-hover);
}

.philosophy__point-icon {
  flex-shrink: 0;
}

.philosophy__point p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============================================
   WHY US
   ============================================ */
.why-us {
  padding: var(--spacing-section) 0;
  position: relative;
  z-index: 1;
}

.why-us__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
}

.feature {
  text-align: center;
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  transition: all var(--transition-base);
}

.feature:hover {
  border-color: var(--color-border-hover);
  background: var(--color-bg-card-hover);
  transform: translateY(-2px);
}

.feature__icon {
  margin-bottom: var(--spacing-lg);
}

.feature__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

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

/* ============================================
   ABOUT / TIMELINE
   ============================================ */
.about {
  padding: var(--spacing-section) 0;
  position: relative;
  z-index: 1;
}

.about__intro {
  max-width: 720px;
  margin: 0 auto var(--spacing-3xl);
  text-align: center;
}

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

/* Timeline */
.timeline {
  position: relative;
  max-width: 680px;
  margin: 0 auto;
  padding-left: var(--spacing-3xl);
}

.timeline__line {
  position: absolute;
  left: 11px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-purple), var(--color-blue), var(--color-teal), transparent);
}

.timeline__item {
  position: relative;
  padding-bottom: var(--spacing-2xl);
}

.timeline__item:last-child {
  padding-bottom: 0;
}

.timeline__marker {
  position: absolute;
  left: calc(-1 * var(--spacing-3xl) + 3px);
  top: 6px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--color-purple);
  background: var(--color-bg);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.timeline__item:hover .timeline__marker {
  background: var(--color-purple);
  box-shadow: 0 0 16px rgba(124, 58, 237, 0.4);
}

.timeline__content {
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  transition: border-color var(--transition-base);
}

.timeline__item:hover .timeline__content {
  border-color: var(--color-border-hover);
}

.timeline__year {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px 10px;
  border-radius: var(--radius-xl);
  background: rgba(124, 58, 237, 0.1);
  color: var(--color-purple);
  margin-bottom: var(--spacing-sm);
}

.timeline__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.timeline__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* ============================================
   CTA
   ============================================ */
.cta {
  position: relative;
  padding: var(--spacing-section) 0;
  z-index: 1;
  text-align: center;
}

.cta__glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(124, 58, 237, 0.1), transparent 70%);
  filter: blur(40px);
  pointer-events: none;
}

.cta__content {
  position: relative;
  z-index: 1;
}

.cta__title {
  font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-4xl));
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-md);
}

.cta__desc {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-2xl);
}

.cta__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
  position: relative;
  z-index: 1;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer__brand .logo {
  margin-bottom: var(--spacing-md);
}

.footer__tagline {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.footer__heading {
  font-size: var(--font-size-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text);
  margin-bottom: var(--spacing-lg);
}

.footer__links li {
  margin-bottom: var(--spacing-sm);
}

.footer__links a {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer__links a:hover {
  color: var(--color-text);
}

.footer__links--contact li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.footer__links--contact svg {
  flex-shrink: 0;
  color: var(--color-text-muted);
}

.footer__social {
  margin-top: var(--spacing-lg);
}

.footer__social a {
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer__social a:hover {
  color: var(--color-text);
}

.footer__bottom {
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer__bottom p {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* ============================================
   ANIMATIONS
   ============================================ */
.anim-fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.anim-fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.services .anim-fade-up:nth-child(1) { transition-delay: 0ms; }
.services .anim-fade-up:nth-child(2) { transition-delay: 100ms; }
.services .anim-fade-up:nth-child(3) { transition-delay: 200ms; }

.why-us .anim-fade-up:nth-child(1) { transition-delay: 0ms; }
.why-us .anim-fade-up:nth-child(2) { transition-delay: 100ms; }
.why-us .anim-fade-up:nth-child(3) { transition-delay: 200ms; }
.why-us .anim-fade-up:nth-child(4) { transition-delay: 300ms; }

.timeline .anim-fade-up:nth-child(1) { transition-delay: 0ms; }
.timeline .anim-fade-up:nth-child(2) { transition-delay: 80ms; }
.timeline .anim-fade-up:nth-child(3) { transition-delay: 160ms; }
.timeline .anim-fade-up:nth-child(4) { transition-delay: 240ms; }
.timeline .anim-fade-up:nth-child(5) { transition-delay: 320ms; }
.timeline .anim-fade-up:nth-child(6) { transition-delay: 400ms; }

/* ============================================
   RESPONSIVE
   ============================================ */

/* Tablet */
@media (max-width: 1024px) {
  :root {
    --spacing-section: 100px;
  }

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

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

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

/* Mobile */
@media (max-width: 768px) {
  :root {
    --spacing-section: 80px;
    --header-height: 64px;
  }

  /* Mobile nav */
  .hamburger {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: var(--color-bg-raised);
    border-left: 1px solid var(--color-border);
    padding: calc(var(--header-height) + var(--spacing-2xl)) var(--spacing-xl) var(--spacing-xl);
    transform: translateX(100%);
    transition: transform var(--transition-spring);
    z-index: 999;
  }

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

  .nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xl);
  }

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

  .nav__link--cta {
    text-align: center;
    width: 100%;
  }

  /* Hero */
  .hero {
    padding-top: calc(var(--header-height) + var(--spacing-3xl));
    min-height: auto;
    padding-bottom: var(--spacing-3xl);
  }

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

  .hero__stats {
    gap: var(--spacing-xl);
    flex-wrap: wrap;
  }

  .hero__float {
    display: none;
  }

  /* Grids */
  .services__grid {
    grid-template-columns: 1fr;
  }

  .why-us__grid {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

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

  /* Timeline */
  .timeline {
    padding-left: var(--spacing-2xl);
  }

  .timeline__marker {
    left: calc(-1 * var(--spacing-2xl) + 3px);
  }

  /* Philosophy */
  .philosophy__point {
    flex-direction: column;
    text-align: center;
  }

  /* CTA */
  .cta__actions {
    flex-direction: column;
  }

  .cta__actions .btn {
    width: 100%;
    justify-content: center;
  }
}

/* Large screens */
@media (min-width: 1440px) {
  .container {
    padding: 0 var(--spacing-2xl);
  }
}

/* Mobile overlay when nav is open */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 998;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.nav-overlay--visible {
  opacity: 1;
  pointer-events: auto;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .anim-fade-up {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hero__glow,
  .hero__float {
    animation: none;
  }
}