/* ============================================
   ZENITHUS TECH — Premium Corporate Website
   Enterprise Software Engineering + AI
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  --navy-950: #020617;
  --navy-900: #0a1628;
  --navy-800: #111d35;
  --navy-700: #1a2744;
  --navy-600: #243356;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  --blue-400: #60a5fa;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --font: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --container: 1200px;
  --container-lg: 1320px;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --transition: 0.3s var(--ease);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  color: var(--gray-900);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  background: var(--white);
}

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

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

ul {
  list-style: none;
}

button {
  font-family: var(--font);
}

::selection {
  background: var(--blue-600);
  color: var(--white);
}

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

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

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

.section {
  padding: 120px 0;
  position: relative;
}

.section-white {
  background: var(--white);
}

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

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

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--gray-500);
  margin-bottom: 64px;
  max-width: 600px;
}

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

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

.section-lead {
  font-size: 1.25rem;
  color: var(--gray-500);
  max-width: 700px;
  margin: 0 auto 48px;
  line-height: 1.8;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 36px;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 50px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font);
  white-space: nowrap;
  letter-spacing: 0.01em;
  position: relative;
  overflow: hidden;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.btn-primary {
  background: var(--blue-600);
  color: var(--white);
  border-color: var(--blue-600);
}

.btn-primary:hover {
  background: var(--blue-700);
  border-color: var(--blue-700);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(37, 99, 235, 0.4);
}

.btn-outline-dark {
  background: transparent;
  color: var(--gray-900);
  border-color: var(--gray-300);
}

.btn-outline-dark:hover {
  border-color: var(--gray-900);
  background: var(--gray-900);
  color: var(--white);
  transform: translateY(-2px);
}

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

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--white);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: #25d366;
  color: var(--white);
  border-color: #25d366;
}

.btn-whatsapp:hover {
  background: #1ebe5d;
  border-color: #1ebe5d;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(37, 211, 102, 0.35);
}

.btn-sm {
  padding: 10px 24px;
  font-size: 0.8125rem;
}

.btn-lg {
  padding: 18px 44px;
  font-size: 1rem;
}

/* ---------- Navbar ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: all var(--transition);
}

.navbar.scrolled {
  background: rgba(10, 22, 40, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 12px 0;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-logo {
  display: flex;
  align-items: center;
  z-index: 10;
}

.logo-img {
  height: 32px;
  width: auto;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.navbar-links a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color var(--transition);
  letter-spacing: 0.01em;
}

.navbar-links a:hover {
  color: var(--white);
}

.navbar-links .btn {
  padding: 10px 24px;
  font-size: 0.8125rem;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 10;
}

.mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition);
}

.mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--navy-900);
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-bg-img {
  position: absolute;
  transform: scaleX(-1);
  right: 0;
  top: 0;
  height: 100%;
  width: 55%;
  object-fit: cover;
  object-position: left;
  opacity: 0.55;
  mask-image: linear-gradient(to right, transparent 0%, black 30%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 30%);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    var(--navy-900) 0%,
    var(--navy-900) 38%,
    rgba(10, 22, 40, 0.7) 60%,
    rgba(10, 22, 40, 0.35) 100%
  );
}

/* Subtle grid pattern on hero */
.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;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 140px 0 120px;
}

.hero-text {
  max-width: 640px;
  margin-left: auto;
}

.hero-tagline {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--blue-400);
  margin-bottom: 28px;
  text-transform: uppercase;
}

.hero-headline {
  font-size: clamp(2.5rem, 5.5vw, 3.75rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.08;
  margin-bottom: 8px;
  letter-spacing: -0.03em;
}

.hero-headline-sub {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.3;
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

.hero-headline-sub .highlight {
  color: var(--blue-400);
  font-weight: 600;
  position: relative;
}

.hero-desc {
  font-size: 1.0625rem;
  color: var(--gray-400);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 520px;
}

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

/* ---------- Trust Bar (floating below hero) ---------- */
.trust-bar {
  position: relative;
  z-index: 5;
  margin-top: -48px;
  padding: 0 24px;
}

.trust-bar-inner {
  max-width: var(--container);
  margin: 0 auto;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-xl);
  padding: 36px 48px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.trust-item {
  text-align: center;
  position: relative;
}

.trust-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: -16px;
  top: 50%;
  transform: translateY(-50%);
  height: 40px;
  width: 1px;
  background: var(--gray-200);
}

.trust-icon-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin: 0 auto 10px;
  background: rgba(37, 99, 235, 0.08);
  border-radius: 50%;
  color: var(--blue-600);
}

.trust-number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--navy-900);
  line-height: 1;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.trust-number .suffix {
  font-size: 1rem;
  font-weight: 600;
  color: var(--blue-600);
}

.trust-label {
  font-size: 0.8125rem;
  color: var(--gray-500);
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.4;
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--blue-600);
  margin-bottom: 20px;
}

.about-heading {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
  color: var(--gray-900);
}

.about-text p {
  font-size: 1rem;
  color: var(--gray-600);
  margin-bottom: 20px;
  line-height: 1.8;
}

.about-text p:last-child {
  margin-bottom: 0;
}

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

.capability-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--gray-50);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.capability-item:hover {
  background: var(--white);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.capability-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  background: var(--blue-600);
  color: var(--white);
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
}

.capability-icon svg {
  width: 22px;
  height: 22px;
}

.capability-text h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 4px;
}

.capability-text p {
  font-size: 0.8125rem;
  color: var(--gray-500);
  line-height: 1.5;
}

/* ---------- Founder ---------- */
.founder-section {
  background: var(--navy-900);
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.founder-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.founder-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.founder-quote-mark {
  font-size: 5rem;
  font-weight: 900;
  color: var(--blue-500);
  line-height: 1;
  margin-bottom: 16px;
  opacity: 0.5;
}

.founder-quote {
  font-size: clamp(1.375rem, 2.5vw, 1.75rem);
  font-weight: 600;
  line-height: 1.45;
  margin-bottom: 32px;
  color: var(--white);
  font-style: italic;
}

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

.founder-signature {
  width: 100px;
  height: auto;
  opacity: 0.9;
  filter: brightness(2);
}

.founder-meta .founder-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
}

.founder-meta .founder-role {
  font-size: 0.8125rem;
  color: var(--gray-400);
}

.founder-image-wrapper {
  position: relative;
  display: flex;
  justify-content: flex-end;
}

.founder-image-wrapper img {
  width: 100%;
  max-width: 480px;
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}


/* ---------- Process ---------- */
.process-timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  position: relative;
  margin-bottom: 60px;
}

/* Connection line */
.process-timeline::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: var(--gray-200);
  z-index: 0;
}

.process-step {
  text-align: center;
  padding: 0 16px;
  position: relative;
  z-index: 1;
}

.process-number {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--white);
  border: 2px solid var(--gray-200);
  border-radius: 50%;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--blue-600);
  transition: all var(--transition);
}

.process-step:hover .process-number {
  background: var(--blue-600);
  border-color: var(--blue-600);
  color: var(--white);
  transform: scale(1.1);
  box-shadow: 0 8px 30px rgba(37, 99, 235, 0.3);
}

.process-title {
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--gray-900);
}

.process-desc {
  font-size: 0.8125rem;
  color: var(--gray-500);
  line-height: 1.6;
}

.process-detail {
  max-width: 800px;
  margin: 0 auto;
  background: var(--white);
  padding: 40px 48px;
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
  position: relative;
}

.process-detail::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--blue-600);
  border-radius: 4px 0 0 4px;
}

.process-detail h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--gray-900);
}

.process-detail p {
  font-size: 1rem;
  color: var(--gray-600);
  line-height: 1.8;
}

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

.solution-card {
  padding: 40px 32px;
  background: var(--white);
  border-radius: var(--radius);
  transition: all var(--transition);
  border: 1px solid var(--gray-200);
  position: relative;
  overflow: hidden;
}

.solution-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--blue-600);
  transform: scaleX(0);
  transition: transform var(--transition);
  transform-origin: left;
}

.solution-card:hover {
  border-color: var(--blue-600);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.solution-card:hover::before {
  transform: scaleX(1);
}

.solution-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 24px;
  background: rgba(37, 99, 235, 0.08);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-600);
  transition: all var(--transition);
}

.solution-card:hover .solution-icon {
  background: var(--blue-600);
  color: var(--white);
}

.solution-icon svg {
  width: 24px;
  height: 24px;
}

.solution-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--gray-900);
}

.solution-card p {
  font-size: 0.9375rem;
  color: var(--gray-500);
  line-height: 1.7;
}

/* ---------- Products Ecosystem ---------- */
.ecosystem-header {
  text-align: center;
  margin-bottom: 64px;
}

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

.product-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px;
  border: 1px solid var(--gray-200);
  transition: all var(--transition);
  position: relative;
}

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

.product-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.product-icon-wrap {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  background: var(--navy-900);
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  padding: 10px;
}

.product-icon-wrap svg {
  width: 22px;
  height: 22px;
}

.product-name {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 2px;
}

.product-tag {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--blue-600);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.product-desc {
  font-size: 0.875rem;
  color: var(--gray-500);
  margin-bottom: 20px;
  line-height: 1.65;
}

.product-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.product-features li {
  font-size: 0.8125rem;
  color: var(--gray-600);
  padding-left: 20px;
  position: relative;
  line-height: 1.5;
}

.product-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 6px;
  height: 6px;
  background: var(--blue-600);
  border-radius: 50%;
}

/* ---------- Stats Banner ---------- */
.stats-banner {
  position: relative;
  padding: 80px 0;
  overflow: hidden;
  background: var(--navy-900);
}

.stats-banner::before {
  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;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 48px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.stat-item {
  position: relative;
  text-align: center;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: -24px;
  top: 50%;
  transform: translateY(-50%);
  height: 48px;
  width: 1px;
  background: rgba(255, 255, 255, 0.1);
}

.stat-number {
  display: block;
  font-size: clamp(2.5rem, 4vw, 3.25rem);
  font-weight: 900;
  color: var(--white);
  line-height: 1;
  margin-bottom: 10px;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.8125rem;
  color: var(--gray-400);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 2px;
  line-height: 1.4;
}

/* ---------- AI Section ---------- */
.ai-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--blue-600);
  margin-bottom: 20px;
}

.ai-heading {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  color: var(--gray-900);
  letter-spacing: -0.02em;
}

.ai-text {
  font-size: 1rem;
  color: var(--gray-500);
  line-height: 1.8;
}

.ai-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.ai-card {
  padding: 36px 28px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.ai-card:hover {
  transform: translateY(-4px);
  border-color: var(--blue-600);
  box-shadow: var(--shadow-lg);
}

.ai-card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(37, 99, 235, 0.08);
  border-radius: var(--radius-sm);
  color: var(--blue-600);
}

.ai-card-icon svg {
  width: 24px;
  height: 24px;
}

.ai-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--gray-900);
}

.ai-card p {
  font-size: 0.875rem;
  color: var(--gray-500);
  line-height: 1.65;
}

.ai-compliance-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.ai-compliance-item {
  padding: 10px 28px;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 50px;
}

.ai-compliance-label {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--gray-700);
  letter-spacing: 1px;
}

/* ---------- Stacks ---------- */
.stacks-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.stack-card {
  padding: 32px 24px;
  background: var(--white);
  border-radius: var(--radius-sm);
  border: 1px solid var(--gray-200);
  text-align: center;
  transition: all var(--transition);
}

.stack-card:hover {
  border-color: var(--blue-600);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.stack-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-600);
}

.stack-icon svg {
  width: 32px;
  height: 32px;
}

.stack-card h3 {
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--gray-900);
}

.stack-card p {
  font-size: 0.8125rem;
  color: var(--gray-500);
  line-height: 1.6;
}

/* ---------- FAQ ---------- */
.faq-layout {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 80px;
  align-items: flex-start;
}

.faq-sidebar {
  position: sticky;
  top: 120px;
}

.faq-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--blue-600);
  margin-bottom: 20px;
}

.faq-heading {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  color: var(--gray-900);
  letter-spacing: -0.02em;
}

.faq-sidebar-text {
  font-size: 1rem;
  color: var(--gray-500);
  line-height: 1.7;
  margin-bottom: 24px;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--white);
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--gray-200);
  transition: all var(--transition);
}

.faq-item.active {
  border-color: var(--blue-600);
  box-shadow: var(--shadow);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--gray-900);
  text-align: left;
  transition: color var(--transition);
  line-height: 1.5;
}

.faq-question:hover {
  color: var(--blue-600);
}

.faq-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  margin-left: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-100);
  border-radius: 50%;
  color: var(--gray-600);
  transition: all var(--transition);
  font-size: 1.25rem;
  font-weight: 300;
  line-height: 1;
}

.faq-item.active .faq-icon {
  background: var(--blue-600);
  color: var(--white);
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease);
}

.faq-item.active .faq-answer {
  max-height: 400px;
}

.faq-answer p {
  padding: 0 24px 20px;
  font-size: 0.9375rem;
  color: var(--gray-500);
  line-height: 1.8;
}

/* ---------- CTA ---------- */
.cta-section {
  background: var(--navy-900);
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.cta-content {
  text-align: center;
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin: 0 auto;
}

.cta-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--white);
  letter-spacing: -0.02em;
}

.cta-desc {
  font-size: 1.125rem;
  color: var(--gray-400);
  margin-bottom: 40px;
  line-height: 1.7;
}

.cta-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.cta-trust {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.cta-trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--gray-400);
}

.cta-trust-item svg {
  width: 16px;
  height: 16px;
  color: var(--blue-400);
}

/* ---------- Footer ---------- */
.footer {
  background: var(--navy-950);
  color: var(--gray-400);
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-logo {
  height: 28px;
  width: auto;
  margin-bottom: 16px;
  opacity: 0.8;
}

.footer-tagline {
  font-size: 0.9375rem;
  color: var(--gray-500);
  margin-bottom: 24px;
  line-height: 1.6;
  max-width: 280px;
}

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

.badge {
  display: inline-block;
  padding: 4px 12px;
  font-size: 0.6875rem;
  font-weight: 600;
  background: rgba(37, 99, 235, 0.12);
  color: var(--blue-400);
  border-radius: 4px;
  letter-spacing: 0.5px;
}

.footer-links h4 {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 20px;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--gray-500);
  transition: color var(--transition);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
}

.footer-bottom p {
  font-size: 0.75rem;
  color: var(--gray-600);
}

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

.footer-bottom-links a {
  font-size: 0.75rem;
  color: var(--gray-600);
}

.footer-bottom-links a:hover {
  color: var(--gray-400);
}

/* ---------- WhatsApp Floating Button ---------- */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 999;
  width: 60px;
  height: 60px;
  background: #25d366;
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  transition: all var(--transition);
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.5);
}

.whatsapp-float svg {
  width: 28px;
  height: 28px;
}

@media (max-width: 480px) {
  .whatsapp-float {
    bottom: 20px;
    right: 20px;
    width: 52px;
    height: 52px;
  }

  .whatsapp-float svg {
    width: 24px;
    height: 24px;
  }
}

/* ---------- Scroll Reveal Animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s var(--ease-out),
              transform 0.7s var(--ease-out);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.7s var(--ease-out),
              transform 0.7s var(--ease-out);
}

.reveal-left.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.7s var(--ease-out),
              transform 0.7s var(--ease-out);
}

.reveal-right.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.7s var(--ease-out),
              transform 0.7s var(--ease-out);
}

.reveal-scale.active {
  opacity: 1;
  transform: scale(1);
}

/* ---------- Responsive: Small Desktop / Laptop ---------- */
@media (max-width: 1280px) {
  .stacks-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }

  .navbar-links {
    gap: 24px;
  }

  .founder-grid {
    gap: 48px;
  }
}

/* ---------- Responsive: Tablet ---------- */
@media (max-width: 1024px) {
  .section {
    padding: 80px 0;
  }

  .about-grid,
  .founder-grid,
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }

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

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

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

  .process-timeline {
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
  }

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

  .process-desc {
    display: none;
  }

  .trust-bar-inner {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    padding: 28px 36px;
  }

  .trust-item:nth-child(2)::after {
    display: none;
  }

  .trust-label {
    font-size: 0.75rem;
  }

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

  .stat-item:nth-child(2)::after {
    display: none;
  }

  .faq-sidebar {
    position: static;
  }

  .founder-image-wrapper img {
    max-width: 100%;
  }

  .navbar-links .btn {
    display: none;
  }

  .hero-bg-img {
    transform: scaleX(-1);
    width: 100%;
    opacity: 0.3;
  }
}

/* ---------- Responsive: Mobile ---------- */
@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }

  /* Navbar mobile */
  .navbar-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 85%;
    max-width: 320px;
    height: 100vh;
    height: 100dvh;
    background: var(--navy-900);
    flex-direction: column;
    justify-content: center;
    gap: 20px;
    padding: 40px;
    transition: right var(--transition);
    box-shadow: -8px 0 40px rgba(0, 0, 0, 0.5);
  }

  .navbar-links.open {
    right: 0;
  }

  .navbar-links a {
    font-size: 1.0625rem;
    color: rgba(255, 255, 255, 0.8);
  }

  .mobile-toggle {
    display: flex;
  }

  /* Hero mobile */
  .hero-bg-img {
    width: 100%;
    height: 100%;
    opacity: 0.15;
    object-position: right center;
    transform: scaleX(-1);
    mask-image: none;
    -webkit-mask-image: none;
  }

  .hero-overlay {
    background: linear-gradient(
      to bottom,
      rgba(10, 22, 40, 0.9),
      rgba(10, 22, 40, 0.75)
    );
  }

  .hero-text {
    max-width: 100%;
    margin-left: 0;
    text-align: center;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    justify-content: center;
  }

  /* Trust bar mobile */
  .trust-bar {
    margin-top: -32px;
    padding: 0 16px;
  }

  .trust-bar-inner {
    grid-template-columns: repeat(2, 1fr);
    padding: 24px;
    gap: 20px;
  }

  .trust-item::after {
    display: none !important;
  }

  .trust-number {
    font-size: 1.5rem;
  }

  /* Grids mobile */
  .solutions-grid,
  .products-grid,
  .stacks-grid,
  .ai-cards-grid {
    grid-template-columns: 1fr;
  }

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

  .stat-item::after {
    display: none !important;
  }

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

  .process-timeline {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .process-step {
    display: flex;
    align-items: center;
    text-align: left;
    gap: 16px;
    padding: 0;
  }

  .process-number {
    width: 56px;
    height: 56px;
    margin: 0;
    flex-shrink: 0;
    font-size: 1.25rem;
  }

  .founder-grid {
    text-align: center;
  }

  .founder-image-wrapper {
    order: -1;
  }

  .founder-image-wrapper img {
    width: 100%;
    max-width: 360px;
    margin-right: 0;
    margin: 0 auto;
  }

  .founder-meta {
    align-items: center;
  }

  .founder-signature {
    margin: 0 auto;
  }

  .ai-compliance-bar {
    gap: 10px;
  }

  .ai-compliance-item {
    padding: 8px 20px;
  }

  .ai-compliance-label {
    font-size: 0.75rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  /* CTA mobile */
  .cta-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-buttons .btn {
    justify-content: center;
  }

  .cta-trust {
    flex-direction: column;
    gap: 12px;
  }
}

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

  .hero-headline {
    font-size: 2rem;
  }

  .hero-headline-sub {
    font-size: 1.125rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .trust-bar-inner {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 24px 20px;
  }

  .trust-item {
    display: flex;
    align-items: center;
    gap: 12px;
    text-align: left;
  }

  .trust-icon-badge {
    margin: 0;
    flex-shrink: 0;
    width: 40px;
    height: 40px;
  }

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

  .stat-number {
    font-size: 2rem;
  }

  .process-step {
    gap: 12px;
  }

  .process-number {
    width: 48px;
    height: 48px;
    font-size: 1.125rem;
  }

  .founder-quote {
    font-size: 1.125rem;
  }

  .ai-compliance-bar {
    flex-direction: column;
    gap: 8px;
  }

  .ai-compliance-item {
    width: 100%;
    text-align: center;
  }
}

/* ---------- Print ---------- */
@media print {
  .navbar,
  .hero-bg,
  .hero::after,
  .mobile-toggle {
    display: none;
  }

  .hero {
    min-height: auto;
    padding: 40px 0;
  }

  .section {
    padding: 40px 0;
  }

  .reveal,
  .reveal-left,
  .reveal-right,
  .reveal-scale {
    opacity: 1;
    transform: none;
  }
}