/* ============================================================
   MySimoka SmartGrowth — Design tokens
   Palette: modern saturated blue as primary, deep navy for
   contrast bands, soft blue-white as base surface.
   Type: Sora (display) + Inter (body)
============================================================ */

:root {
  --bg: #F6F9FF;
  --surface: #FFFFFF;
  --ink: #0B1730;
  --ink-muted: #55617A;
  --ink-soft: #8792A8;

  --blue-50:  #EAF1FF;
  --blue-100: #DCE8FF;
  --blue-200: #B7CEFF;
  --blue-400: #4E7FF2;
  --blue-500: #2F63EB;
  --blue-600: #2354E6;
  --blue-700: #1A3FBD;

  --navy-900: #071026;
  --navy-800: #0C1B3A;

  --border: #E3E9F7;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;

  --shadow-sm: 0 1px 2px rgba(11, 23, 48, 0.06);
  --shadow-md: 0 8px 24px rgba(35, 84, 230, 0.10);
  --shadow-lg: 0 20px 48px rgba(11, 23, 48, 0.14);

  --font-display: 'Sora', 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--ink);
  margin: 0 0 16px;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

p { color: var(--ink-muted); margin: 0 0 16px; }

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

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

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 112px 0; }

.section-label {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue-600);
  background: var(--blue-50);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.section-label--light {
  color: #BFD3FF;
  background: rgba(255, 255, 255, 0.08);
}

h2 { font-size: clamp(28px, 4vw, 40px); font-weight: 700; }

/* ============================================================
   Reveal-on-scroll
============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ============================================================
   Navbar
============================================================ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 249, 255, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.navbar.is-scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  color: var(--ink);
  text-decoration: none;
}
.logo-highlight { color: var(--blue-600); }

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 36px;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-muted);
  transition: color 0.2s ease;
}
.nav-links a:hover { color: var(--blue-600); }

.nav-cta {
  background: var(--blue-600);
  color: #fff !important;
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 600 !important;
  transition: background 0.2s ease, transform 0.2s ease;
}
.nav-cta:hover { background: var(--blue-700); transform: translateY(-1px); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

/* ============================================================
   Hero
============================================================ */
#hero {
  position: relative;
  min-height: 86vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  padding-bottom: 88px;
  overflow: hidden;
  background: radial-gradient(circle at 78% 22%, #16265e 0%, transparent 55%), linear-gradient(160deg, var(--navy-900) 0%, #0A1530 55%, #0C1B3A 100%);
}

.hero-glow {
  position: absolute;
  top: -260px;
  right: -180px;
  width: 680px;
  height: 680px;
  background: radial-gradient(circle at center, var(--blue-500) 0%, rgba(47,99,235,0.35) 45%, transparent 72%);
  filter: blur(20px);
  opacity: 0.65;
  border-radius: 50%;
  z-index: 0;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 30%, transparent 80%);
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.badge {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: #BFD3FF;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(190, 211, 255, 0.25);
  padding: 7px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
}

.hero-text h1 {
  font-size: clamp(34px, 4.6vw, 52px);
  font-weight: 800;
  color: #fff;
}

.text-accent {
  background: linear-gradient(92deg, #6FA0FF, #BFD3FF);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-desc {
  font-size: 17px;
  max-width: 460px;
  margin-bottom: 32px;
  color: #A9B6D6;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--blue-600);
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  padding: 15px 26px;
  border-radius: 999px;
  box-shadow: var(--shadow-md);
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.cta-btn:hover {
  background: var(--blue-700);
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(35, 84, 230, 0.22);
}

.cta-btn--light {
  background: #fff;
  color: var(--blue-700);
}
.cta-btn--light:hover {
  background: var(--blue-50);
  color: var(--blue-700);
}

.ghost-btn {
  font-weight: 600;
  font-size: 15px;
  color: #DCE8FF;
  padding: 15px 8px;
  border-bottom: 2px solid rgba(220, 232, 255, 0.25);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.ghost-btn:hover { color: #fff; border-color: #6FA0FF; }

/* --- 3D model viewer --- */
.hero-model { width: 100%; }

.viewer-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(255,255,255,0.05), rgba(255,255,255,0.015));
  border: 1px solid rgba(190, 211, 255, 0.16);
  box-shadow: 0 30px 70px rgba(3, 8, 24, 0.55), inset 0 1px 0 rgba(255,255,255,0.06);
  overflow: hidden;
  cursor: grab;
}
.viewer-frame:active { cursor: grabbing; }

#modelCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
}

.viewer-loading {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  color: #9FB0D6;
  font-size: 13px;
  font-weight: 500;
  background: transparent;
  transition: opacity 0.3s ease;
  pointer-events: none;
  text-align: center;
  padding: 0 24px;
}
.viewer-loading.is-error { color: #E4ECFF; }

.viewer-spinner {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2.5px solid rgba(190, 211, 255, 0.2);
  border-top-color: #6FA0FF;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.viewer-hint {
  position: absolute;
  left: 16px;
  bottom: 16px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 500;
  color: #C9D6F5;
  background: rgba(7, 16, 38, 0.55);
  border: 1px solid rgba(190, 211, 255, 0.18);
  padding: 8px 14px;
  border-radius: 999px;
  backdrop-filter: blur(6px);
  pointer-events: none;
}

.viewer-toolbar {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 5;
}

.viewer-tool {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(190, 211, 255, 0.2);
  border-radius: 10px;
  background: rgba(7, 16, 38, 0.55);
  backdrop-filter: blur(6px);
  color: #C9D6F5;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.viewer-tool:hover {
  background: rgba(47, 99, 235, 0.45);
  color: #fff;
  border-color: rgba(110, 160, 255, 0.5);
}
.viewer-tool:active {
  transform: scale(0.92);
}

/* ============================================================
   Detailed Features — Slider
============================================================ */
#detailed-features { background: var(--navy-900); }

#detailed-features .section-label { color: #BFD3FF; background: rgba(255,255,255,0.08); }
#detailed-features h2 { color: #fff; }

.df-slider { position: relative; overflow: hidden; }

.df-track {
  display: flex;
  transition: transform 0.5s cubic-bezier(.4,0,.2,1);
}

.df-slide {
  min-width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.df-slide-img {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: rgba(255,255,255,0.05);
  aspect-ratio: 4 / 3;
  border: 1px solid rgba(190,211,255,0.12);
}

.df-slide-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.df-slide-text { padding: 16px 0; }

.df-slide-num {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 800;
  color: rgba(79,127,242,0.2);
  line-height: 1;
  margin-bottom: 16px;
}

.df-slide-text h3 {
  color: #fff;
  font-size: clamp(22px, 3vw, 28px);
  margin-bottom: 12px;
}

.df-slide-text p {
  color: #A9B6D6;
  font-size: 16px;
  line-height: 1.7;
  max-width: 440px;
  margin: 0;
}

.df-controls {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 40px;
}

.df-arrow {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(190,211,255,0.2);
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  color: #C9D6F5;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.df-arrow:hover {
  background: rgba(47,99,235,0.4);
  color: #fff;
  border-color: rgba(110,160,255,0.5);
}
.df-arrow:active { transform: scale(0.92); }

.df-dots {
  display: flex;
  gap: 8px;
  align-items: center;
}

.df-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(190,211,255,0.2);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background 0.25s ease, width 0.25s ease;
}
.df-dot.is-active {
  background: var(--blue-400);
  width: 24px;
  border-radius: 4px;
}

/* ============================================================
   Problem section
============================================================ */
#problem { background: var(--surface); }

#problem h2 { margin-bottom: 48px; max-width: 560px; }

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

.problem-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.problem-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--blue-200);
}

.problem-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blue-100);
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}

.problem-icon svg {
  width: 24px;
  height: 24px;
  color: var(--blue-600);
}

.problem-card h3 {
  font-size: 19px;
  margin-bottom: 8px;
}

.problem-card p { margin: 0; font-size: 15px; }

/* ============================================================
   Value section — light, blue-tinted (hero + footer own the dark tone)
============================================================ */
#value {
  position: relative;
  background: var(--blue-50);
  overflow: hidden;
  text-align: center;
}

#value .container { position: relative; z-index: 1; }

#value h2 { margin: 0 auto 20px; max-width: 560px; }

.value-content {
  max-width: 640px;
  margin: 0 auto 56px;
}
.value-content p {
  color: var(--ink-muted);
  font-size: 17px;
  margin: 0;
}

.value-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 760px;
  margin: 0 auto;
}

.stat {
  border-top: 1px solid var(--blue-200);
  padding-top: 20px;
}

.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  color: var(--blue-700);
  margin-bottom: 6px;
}

.stat-label {
  font-size: 14px;
  color: var(--ink-muted);
}

/* ============================================================
   Features
============================================================ */
#features { background: var(--surface); }

#features h2 { margin-bottom: 48px; max-width: 560px; }

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

.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--blue-200);
}

.feature-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blue-600);
  color: #fff;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}
.feature-icon svg { width: 24px; height: 24px; }

.feature-card h3 { font-size: 19px; margin-bottom: 8px; }
.feature-card p { margin: 0; font-size: 15px; }

/* Asymmetric rhythm: last two cards feel like a closing pair */
.feature-card:nth-child(4),
.feature-card:nth-child(5) {
  background: var(--blue-50);
  border-color: var(--blue-200);
}
.feature-card:nth-child(4) .feature-icon,
.feature-card:nth-child(5) .feature-icon {
  background: var(--navy-900);
}

/* ============================================================
   Team
============================================================ */
#team { background: var(--bg); }

#team h2 { margin-bottom: 48px; }

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

.team-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.team-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }

.team-avatar {
  width: 76px;
  height: 76px;
  margin: 0 auto 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue-500), var(--blue-700));
}

.team-card h3 { font-size: 18px; margin-bottom: 4px; }
.team-role { font-size: 14px; color: var(--ink-muted); }

/* ============================================================
   Footer
============================================================ */
footer {
  background: linear-gradient(160deg, var(--navy-900), var(--blue-700));
  padding: 88px 0 32px;
}

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

.footer-cta h3 {
  color: #fff;
  font-size: clamp(24px, 3.4vw, 32px);
  margin-bottom: 28px;
}

.footer-cta .cta-btn { margin: 0; }

.footer-cta-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.footer-cta-visual {
  display: flex;
  justify-content: center;
}

.footer-mockup {
  max-width: 280px;
}

.footer-mockup-img {
  width: 100%;
  display: block;
}

.footer-cta-content {
  text-align: left;
}

.footer-cta-content h3 {
  margin-bottom: 24px;
}

.copyright {
  font-size: 13px;
  color: #8CA0D6;
  margin: 0;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ============================================================
   Responsive
============================================================ */
@media (max-width: 900px) {
  section { padding: 80px 0; }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-model { order: -1; }
  .hero-desc { max-width: 100%; }

  .problem-grid,
  .features-grid {
    grid-template-columns: 1fr 1fr;
  }

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

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

  .value-stats { grid-template-columns: 1fr; gap: 20px; }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }

  .nav-links {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 12px 24px 24px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s ease, opacity 0.25s ease;
  }
  .nav-links.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-links li { width: 100%; padding: 12px 0; border-bottom: 1px solid var(--border); }
  .nav-links li:last-child { border-bottom: none; padding-top: 16px; }
  .nav-cta { display: inline-block; }

  .nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.is-open span:nth-child(2) { opacity: 0; }
  .nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .problem-grid,
  .features-grid,
  .team-grid {
    grid-template-columns: 1fr;
  }

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

  .footer-cta-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-cta-content { text-align: center; }

  .footer-cta-content .cta-btn { margin: 0 auto; }
}