/* ===== Design System Variables ===== */
:root {
  --bg: #F6F7FB;
  --card: #FFFFFF;
  --ink: #14162B;
  --muted: #4B5069;
  --indigo: #4F46E5;
  --magenta: #D946EF;
  --purple: #A21CAF;
  --success: #22C55E;
  --error: #EF4444;
  --radius: 12px;
  --font: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --max-w: 1200px;
  --transition: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--indigo); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--magenta); }

/* ===== Focus Visible ===== */
:focus-visible {
  outline: 3px solid var(--indigo);
  outline-offset: 2px;
  border-radius: 4px;
}

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

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 { line-height: 1.2; font-weight: 700; color: var(--ink); }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 900; line-height: 1.1; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 800; }
h3 { font-size: 1.25rem; font-weight: 700; }
p { max-width: 34em; }

/* ===== Navigation ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--card);
  border-bottom: 2px solid var(--ink);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--ink);
}

.nav-brand svg { flex-shrink: 0; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--ink);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  padding: 4px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--indigo);
  transition: width var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 10px 24px;
  background: var(--indigo);
  color: #fff !important;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all var(--transition);
  border: 2px solid var(--indigo);
}

.nav-cta:hover {
  background: transparent;
  color: var(--indigo) !important;
}

/* Mobile menu */
.menu-toggle {
  display: none;
  background: none;
  border: 2px solid var(--ink);
  border-radius: 8px;
  padding: 8px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--ink);
  margin: 5px 0;
  transition: all var(--transition);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--font);
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  min-height: 44px;
  text-align: center;
}

.btn-primary {
  background: var(--indigo);
  color: #fff;
  border-color: var(--indigo);
}

.btn-primary:hover {
  background: var(--purple);
  border-color: var(--purple);
  color: #fff;
  transform: translateY(-2px);
}

.btn-primary:active { transform: translateY(0); }

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

.btn-secondary:hover {
  background: var(--indigo);
  color: #fff;
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: transparent;
  padding: 14px 16px;
}

.btn-ghost:hover { color: var(--indigo); }

.btn:disabled, .btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ===== Hero Section ===== */
.hero {
  padding: 80px 0 100px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 3px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 16px;
}

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

.hero h1 .accent { color: var(--indigo); }

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--muted);
  margin-bottom: 40px;
  line-height: 1.7;
}

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

.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-shape {
  width: 400px;
  height: 400px;
  position: relative;
}

.hero-shape .circle {
  position: absolute;
  border-radius: 50%;
  border: 3px solid;
}

.hero-shape .circle-1 {
  width: 300px; height: 300px;
  top: 50px; left: 50px;
  border-color: var(--indigo);
  animation: float 6s ease-in-out infinite;
}

.hero-shape .circle-2 {
  width: 200px; height: 200px;
  top: 100px; left: 100px;
  border-color: var(--magenta);
  animation: float 6s ease-in-out infinite 1s;
}

.hero-shape .circle-3 {
  width: 100px; height: 100px;
  top: 150px; left: 150px;
  background: var(--indigo);
  animation: float 6s ease-in-out infinite 2s;
}

.hero-img-wrapper {
  width: 100%;
  max-width: 420px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 3px solid var(--ink);
}

.hero-img-wrapper img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

/* ===== Style Info Bar ===== */
.style-bar {
  padding: 32px 0;
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  background: var(--card);
}

.chip-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  background: var(--bg);
  color: var(--ink);
  transition: all var(--transition);
}

.chip:hover {
  background: var(--indigo);
  color: #fff;
  border-color: var(--indigo);
}

/* ===== Section ===== */
.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

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

.section-header p {
  color: var(--muted);
  margin: 0 auto;
  font-size: 1.05rem;
}

/* ===== Feature Cards ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--card);
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--indigo);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

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

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--indigo);
}

.feature-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
  color: var(--indigo);
}

.feature-card h3 { margin-bottom: 12px; }

.feature-card p {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ===== About Section ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.about-img {
  border-radius: var(--radius);
  overflow: hidden;
  border: 3px solid var(--ink);
}

.about-img img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}

.about-content h2 { margin-bottom: 20px; }
.about-content p { color: var(--muted); margin-bottom: 16px; line-height: 1.7; }

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 32px;
}

.stat-item {
  text-align: center;
  padding: 16px;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
}

.stat-number {
  font-size: 2rem;
  font-weight: 900;
  color: var(--indigo);
  display: block;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ===== Team Section ===== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.team-card {
  background: var(--card);
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: all var(--transition);
}

.team-card:hover {
  transform: translateY(-4px);
  border-color: var(--indigo);
}

.team-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 16px;
  overflow: hidden;
  border: 3px solid var(--indigo);
}

.team-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-card h3 { font-size: 1rem; margin-bottom: 4px; }
.team-card .role { color: var(--muted); font-size: 0.85rem; }

/* ===== Contact Section ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

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

.contact-info-item svg {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  color: var(--indigo);
  margin-top: 2px;
}

.contact-info-item .label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  margin-bottom: 4px;
}

.contact-info-item .value {
  font-weight: 600;
  font-size: 1rem;
}

.contact-info-item .value a { color: var(--ink); }
.contact-info-item .value a:hover { color: var(--indigo); }

/* ===== Form ===== */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--ink);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 1rem;
  background: var(--card);
  color: var(--ink);
  transition: border-color var(--transition);
  min-height: 48px;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--indigo);
  outline: none;
}

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

/* ===== Login Page ===== */
.login-wrapper {
  min-height: calc(100vh - 72px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
}

.login-card {
  background: var(--card);
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  padding: 48px 40px;
  width: 100%;
  max-width: 440px;
}

.login-card h1 {
  font-size: 1.75rem;
  margin-bottom: 8px;
  text-align: center;
}

.login-card .subtitle {
  text-align: center;
  color: var(--muted);
  margin-bottom: 32px;
}

.login-card .btn { width: 100%; }

.login-footer {
  text-align: center;
  margin-top: 24px;
  font-size: 0.9rem;
  color: var(--muted);
}

/* ===== Download Page ===== */
.download-hero {
  padding: 80px 0;
  text-align: center;
}

.download-hero h1 { margin-bottom: 16px; }
.download-hero .subtitle { color: var(--muted); font-size: 1.1rem; margin-bottom: 40px; }

.download-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 700px;
  margin: 0 auto;
}

.download-card {
  background: var(--card);
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition);
}

.download-card:hover {
  transform: translateY(-4px);
  border-color: var(--indigo);
}

.download-card svg {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  color: var(--indigo);
}

.download-card h3 { margin-bottom: 8px; }
.download-card p { color: var(--muted); font-size: 0.9rem; margin-bottom: 20px; }

.download-steps {
  padding: 60px 0;
  border-top: 2px solid var(--ink);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.step-card {
  text-align: center;
  padding: 24px;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--indigo);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.2rem;
  margin: 0 auto 16px;
}

/* ===== Services Page ===== */
.services-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.service-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  background: var(--card);
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  padding: 32px;
  transition: all var(--transition);
}

.service-item:hover { border-color: var(--indigo); }

.service-item:nth-child(even) .service-img { order: 2; }

.service-img {
  border-radius: var(--radius);
  overflow: hidden;
  border: 2px solid var(--ink);
}

.service-img img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.service-content h3 { font-size: 1.4rem; margin-bottom: 12px; }
.service-content p { color: var(--muted); line-height: 1.7; margin-bottom: 16px; }

/* ===== Footer ===== */
.site-footer {
  background: var(--ink);
  color: #fff;
  padding: 48px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand { font-size: 1.1rem; font-weight: 700; margin-bottom: 12px; }
.footer-desc { color: rgba(255,255,255,0.6); font-size: 0.9rem; line-height: 1.6; }

.footer-col h4 {
  color: #fff;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: rgba(255,255,255,0.6); font-size: 0.9rem; }
.footer-col a:hover { color: #fff; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 24px;
  text-align: center;
  color: rgba(255,255,255,0.4);
  font-size: 0.85rem;
}

/* ===== Badge ===== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: var(--radius);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.badge-indigo { background: var(--indigo); color: #fff; }
.badge-magenta { background: var(--magenta); color: #fff; }
.badge-success { background: var(--success); color: #fff; }

/* ===== Toggle ===== */
.toggle {
  position: relative;
  width: 52px;
  height: 28px;
  background: var(--muted);
  border-radius: 14px;
  cursor: pointer;
  transition: background var(--transition);
  border: none;
}

.toggle.active { background: var(--indigo); }

.toggle::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 22px;
  height: 22px;
  background: #fff;
  border-radius: 50%;
  transition: transform var(--transition);
}

.toggle.active::after { transform: translateX(24px); }

/* ===== Scroll Animations ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== Keyframes ===== */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== Prefers Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal, .reveal-left, .reveal-right {
    opacity: 1;
    transform: none;
  }
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .menu-toggle { display: block; }

  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--card);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 2px solid var(--ink);
  }

  .nav-links.open { display: flex; }

  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { order: -1; }
  .hero-shape { width: 280px; height: 280px; }
  .hero-shape .circle-1 { width: 200px; height: 200px; top: 40px; left: 40px; }
  .hero-shape .circle-2 { width: 140px; height: 140px; top: 70px; left: 70px; }
  .hero-shape .circle-3 { width: 70px; height: 70px; top: 105px; left: 105px; }

  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .service-item { grid-template-columns: 1fr; }
  .service-item:nth-child(even) .service-img { order: 0; }
  .download-cards { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: repeat(3, 1fr); }

  .section { padding: 56px 0; }
  .hero { padding: 48px 0 64px; }
}

@media (max-width: 375px) {
  .container { padding: 0 16px; }
  .about-stats { grid-template-columns: 1fr; }
}