/* ===========================
   ByteBound — Design System
   =========================== */

:root {
  --bg-base: #03060f;
  --bg-surface: #0a0f1e;
  --bg-card: #0f1729;
  --bg-card-hover: #141e35;
  --border: rgba(59, 130, 246, 0.15);
  --border-hover: rgba(59, 130, 246, 0.35);

  --blue: #3b82f6;
  --blue-light: #60a5fa;
  --blue-dark: #1d4ed8;
  --cyan: #06b6d4;
  --cyan-light: #22d3ee;

  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --text-faint: #475569;

  --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
  --gradient-hero: linear-gradient(135deg, #03060f 0%, #0a1628 50%, #03060f 100%);
  --glow-blue: 0 0 40px rgba(59, 130, 246, 0.25);
  --glow-cyan: 0 0 40px rgba(6, 182, 212, 0.2);

  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --transition: all 0.25s ease;

  --nav-height: 72px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-base);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.75rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }

p { color: var(--text-muted); }

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

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

/* ── Layout ── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 100px 0;
}

/* ── Navigation ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: var(--transition);
}

.nav.scrolled {
  background: rgba(3, 6, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: -0.03em;
}

.nav-logo-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  box-shadow: var(--glow-blue);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: rgba(59, 130, 246, 0.1);
}

.nav-cta {
  background: var(--gradient-primary);
  color: white !important;
  padding: 10px 20px !important;
  border-radius: var(--radius-sm) !important;
  font-weight: 600 !important;
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.35);
  transition: var(--transition) !important;
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 30px rgba(59, 130, 246, 0.5) !important;
  background: rgba(0,0,0,0) !important;
  background: var(--gradient-primary) !important;
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 0 30px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 45px rgba(59, 130, 246, 0.55);
}

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

.btn-outline:hover {
  background: rgba(59, 130, 246, 0.08);
  border-color: var(--blue);
  transform: translateY(-2px);
}

/* ── Cards ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
}

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

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.2);
}

/* ── Section Headers ── */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 16px;
}

.section-label::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}

.section-header h2 {
  margin-bottom: 16px;
}

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

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-height);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/hero-bg.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.08;
  z-index: 0;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(59, 130, 246, 0.15) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 30%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
  z-index: 0;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: 100px;
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--blue-light);
  margin-bottom: 28px;
}

.hero-badge-dot {
  width: 7px;
  height: 7px;
  background: var(--cyan);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.hero h1 {
  margin-bottom: 24px;
}

.hero p {
  font-size: 1.2rem;
  max-width: 560px;
  margin-bottom: 40px;
  color: var(--text-muted);
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-faint);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: float 2.5s ease-in-out infinite;
  z-index: 1;
}

.hero-scroll svg {
  animation: bounce-arrow 2s infinite;
}

@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-6px); }
}

@keyframes bounce-arrow {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(4px); }
}

/* ── Stats ── */
.stats-section {
  padding: 60px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ── Services Preview ── */
.services-preview {
  background: var(--bg-surface);
}

/* ── Feature Grid ── */
.feature-card {
  display: flex;
  gap: 20px;
  padding: 28px;
}

.feature-card .card-icon {
  flex-shrink: 0;
}

.feature-card-body h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

/* ── Image + Text ── */
.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.split-section.reverse {
  direction: rtl;
}

.split-section.reverse > * {
  direction: ltr;
}

.split-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.split-image img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  display: block;
  border-radius: var(--radius-lg);
}

.split-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-hover);
  pointer-events: none;
}

.split-image-glow {
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  background: var(--gradient-primary);
  opacity: 0.15;
  z-index: -1;
  filter: blur(20px);
}

.split-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.split-content h2 {
  margin-bottom: 0;
}

.split-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 8px;
}

.split-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.split-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--gradient-primary);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ── CTA Banner ── */
.cta-section {
  padding: 80px 0;
}

.cta-inner {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 80px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-inner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: var(--gradient-primary);
}

.cta-inner h2 {
  margin-bottom: 16px;
}

.cta-inner p {
  max-width: 480px;
  margin: 0 auto 40px;
  font-size: 1.1rem;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Services Page ── */
.services-hero {
  padding: 160px 0 100px;
  background: var(--bg-surface);
  text-align: center;
}

.services-hero h1 {
  margin-bottom: 16px;
}

.services-hero p {
  font-size: 1.15rem;
  max-width: 540px;
  margin: 0 auto;
}

.service-detail-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

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

.service-detail-header {
  padding: 40px 40px 28px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.06), transparent);
}

.service-detail-header .card-icon {
  margin-bottom: 16px;
}

.service-detail-header h3 {
  font-size: 1.35rem;
  margin-bottom: 10px;
}

.service-detail-body {
  padding: 28px 40px 40px;
}

.service-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 16px;
}

.service-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.service-features li::before {
  content: '→';
  color: var(--blue);
  flex-shrink: 0;
  margin-top: 1px;
}

.process-section {
  background: var(--bg-surface);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 32px;
  left: 10%;
  right: 10%;
  height: 1px;
  background: var(--border);
}

.process-step {
  text-align: center;
  padding: 0 20px;
}

.step-number {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0 auto 20px;
  position: relative;
  z-index: 1;
  background-color: var(--bg-card);
  border: 1px solid var(--border-hover);
  -webkit-text-fill-color: transparent;
  background: var(--bg-card);
}

.step-number span {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 1.3rem;
  font-weight: 800;
}

.process-step h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

/* ── About Page ── */
.about-hero {
  padding: 160px 0 100px;
  background: var(--bg-surface);
}

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

.value-card {
  padding: 32px;
  border-left: 2px solid var(--blue);
}

.value-card h3 {
  margin-bottom: 10px;
}

/* ── Founder Section ── */
.founder-section {
  background: var(--bg-surface);
}

.founder-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 64px;
  align-items: start;
}

.founder-photo-col {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: calc(var(--nav-height) + 24px);
}

.founder-photo-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 3 / 4;
}

.founder-photo {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: var(--radius-lg);
  object-fit: cover;
  object-position: top;
  position: relative;
  z-index: 1;
}

.founder-photo-glow {
  position: absolute;
  inset: -2px;
  border-radius: var(--radius-lg);
  background: var(--gradient-primary);
  opacity: 0.2;
  z-index: 0;
  filter: blur(24px);
}

.founder-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.founder-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
}

.founder-title {
  font-size: 0.9rem;
  color: var(--blue-light);
  font-weight: 500;
}

.founder-email {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 4px;
  transition: var(--transition);
}

.founder-email:hover {
  color: var(--blue-light);
}

.founder-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.founder-badge {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 5px 10px;
  border-radius: 100px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  color: var(--blue-light);
  white-space: nowrap;
}

.founder-bio {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.founder-lead {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--text);
  font-weight: 500;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.founder-bio p {
  color: var(--text-muted);
  line-height: 1.75;
}

.founder-career {
  margin-top: 8px;
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.founder-career-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  margin-bottom: 20px;
}

.founder-career-grid {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.founder-career-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}

.founder-career-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.career-company {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  flex-shrink: 0;
}

.career-role {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: right;
}

/* ── Contact Page ── */
.contact-hero {
  padding: 160px 0 80px;
  background: var(--bg-surface);
  text-align: center;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 60px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.1rem;
}

.contact-info-text strong {
  display: block;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  margin-bottom: 4px;
}

.contact-info-text a,
.contact-info-text span {
  color: var(--text);
  font-size: 0.95rem;
}

.contact-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px;
}

.form-group {
  margin-bottom: 24px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

input, textarea, select {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--blue);
  background: rgba(59, 130, 246, 0.05);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.12);
}

input::placeholder, textarea::placeholder {
  color: var(--text-faint);
}

textarea {
  resize: vertical;
  min-height: 140px;
}

select option {
  background: var(--bg-surface);
}

.form-submit {
  width: 100%;
  padding: 16px;
  font-size: 1rem;
}

/* ── Footer ── */
.footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 60px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: 0.9rem;
  margin-top: 12px;
  max-width: 260px;
}

.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: var(--transition);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-faint);
}

/* ── Page Hero (shared) ── */
.page-hero {
  padding: 140px 0 80px;
  background: var(--bg-surface);
  position: relative;
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(59, 130, 246, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 30%, rgba(6, 182, 212, 0.06) 0%, transparent 50%);
}

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

.page-hero h1 {
  margin-bottom: 16px;
}

.page-hero p {
  font-size: 1.1rem;
  max-width: 540px;
  margin: 0 auto;
}

/* ── Animations ── */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .process-steps::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .split-section { grid-template-columns: 1fr; gap: 48px; }
  .split-section.reverse { direction: ltr; }
  .contact-layout { grid-template-columns: 1fr; }
  .founder-layout { grid-template-columns: 1fr; gap: 48px; }
  .founder-photo-col { position: static; }
}

@media (max-width: 768px) {
  section { padding: 72px 0; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }

  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(3, 6, 15, 0.97);
    backdrop-filter: blur(20px);
    padding: 24px;
    border-bottom: 1px solid var(--border);
    gap: 4px;
  }
  .nav-hamburger { display: flex; }

  .hero { min-height: 100svh; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { text-align: center; justify-content: center; }

  .cta-inner { padding: 48px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }

  .contact-form-card { padding: 28px 20px; }
  .service-detail-header, .service-detail-body { padding: 24px; }
  .founder-career-item { flex-direction: column; gap: 4px; }
  .career-role { text-align: left; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  h1 { font-size: 2rem; }
  h2 { font-size: 1.6rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}