:root {
  --primary: #1e4b8e;
  --primary-dark: #0b1b2f;
  --secondary: #00c896;
  --accent: #ff9f43;
  --text: #1f2937;
  --muted: #6b7280;
  --bg: #f8fafc;
  --card: #ffffff;
  --radius: 16px;
  --shadow: 0 10px 40px rgba(15, 23, 42, 0.08);
  --header-h: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  margin: 0;
  font-family: 'Vazirmatn', Tahoma, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}

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

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

.container {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  color: var(--primary);
  font-size: 0.95rem;
}

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 1.1rem;
}

.nav-desktop {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0.25rem;
}

.nav-desktop a {
  padding: 0.5rem 0.85rem;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--muted);
  transition: 0.2s;
}

.nav-desktop a:hover { color: var(--primary); background: #eef2ff; }

.menu-btn {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 12px;
  background: #eef2ff;
  color: var(--primary);
  cursor: pointer;
}

.nav-mobile {
  display: none;
  position: fixed;
  top: var(--header-h);
  inset-inline: 0;
  background: #fff;
  border-bottom: 1px solid #e5e7eb;
  padding: 0.75rem 1rem 1rem;
  box-shadow: var(--shadow);
}

.nav-mobile.open { display: block; }

.nav-mobile a {
  display: block;
  padding: 0.75rem 0.5rem;
  border-radius: 10px;
  font-weight: 500;
}

.nav-mobile a:hover { background: #f1f5f9; }

@media (min-width: 900px) {
  .nav-desktop { display: flex; }
  .menu-btn, .nav-mobile { display: none !important; }
  .brand span.short { display: none; }
}

@media (max-width: 899px) {
  .brand span.full { display: none; }
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  padding: calc(var(--header-h) + 2rem) 0 4rem;
  color: #fff;
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 60% at 20% 10%, rgba(0, 200, 150, 0.25), transparent 60%),
    radial-gradient(ellipse 70% 50% at 90% 20%, rgba(255, 159, 67, 0.18), transparent 55%),
    linear-gradient(145deg, var(--primary-dark) 0%, var(--primary) 45%, #163a72 100%);
}

.hero-grid {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.hero-badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 0.82rem;
  backdrop-filter: blur(6px);
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.6rem, 4vw, 2.75rem);
  line-height: 1.35;
  font-weight: 800;
}

.hero-lead {
  margin: 0 0 1.75rem;
  max-width: 38rem;
  font-size: clamp(1rem, 2.2vw, 1.15rem);
  color: rgba(255, 255, 255, 0.88);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

/* Live stats in hero — glass cards matching feature-grid */
.trust-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  width: 100%;
}

.hero-stat {
  text-align: center;
  padding: 1rem 0.75rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.hero-stat strong {
  display: block;
  font-size: clamp(1.35rem, 3.5vw, 1.85rem);
  font-weight: 800;
  color: #6ee7b7;
  line-height: 1.2;
  margin-bottom: 0.35rem;
  font-variant-numeric: tabular-nums;
}

.hero-stat span {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.45;
}

@media (max-width: 640px) {
  .trust-stats {
    grid-template-columns: 1fr;
    gap: 0.6rem;
  }

  .hero-stat {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    text-align: right;
    padding: 0.85rem 1rem;
  }

  .hero-stat strong {
    margin-bottom: 0;
    font-size: 1.5rem;
    flex-shrink: 0;
  }

  .hero-stat span {
    font-size: 0.85rem;
    text-align: left;
  }
}

@media (min-width: 641px) and (max-width: 900px) {
  .trust-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .trust-stats .hero-stat:last-child:nth-child(odd) {
    grid-column: 1 / -1;
    max-width: 50%;
    margin-inline: auto;
    width: 100%;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: linear-gradient(135deg, var(--secondary), #00a67d);
  color: #fff;
  box-shadow: 0 8px 24px rgba(0, 200, 150, 0.35);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.5);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.85rem;
}

.feature-card {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius);
  padding: 1rem;
  text-align: center;
  backdrop-filter: blur(8px);
}

.feature-card strong {
  display: block;
  margin: 0.5rem 0 0.25rem;
  font-size: 0.95rem;
}

.feature-card span { font-size: 0.8rem; color: rgba(255,255,255,0.8); }

.hero-visual {
  display: none;
  justify-content: center;
}

.phone-mock {
  width: min(280px, 80vw);
  aspect-ratio: 9/18;
  border-radius: 28px;
  padding: 10px;
  background: #111827;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
}

.phone-screen {
  height: 100%;
  border-radius: 20px;
  background: linear-gradient(180deg, #eff6ff, #fff);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--primary);
}

.phone-screen .app-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

@media (min-width: 900px) {
  .hero-grid { grid-template-columns: 1.1fr 0.9fr; }
  .hero-visual { display: flex; }
}

/* Sections */
.section {
  padding: 4.5rem 0;
}

.section-alt { background: #fff; }

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 2.5rem;
}

.section-head h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  color: var(--primary);
}

.section-head p { margin: 0; color: var(--muted); }

.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid #eef2f7;
}

.grid-2 {
  display: grid;
  gap: 1.25rem;
}

.grid-3 {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.grid-4 {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

@media (min-width: 768px) {
  .grid-2 { grid-template-columns: 1.2fr 0.8fr; }
}

.quote-box {
  padding: 1.5rem;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  border-radius: var(--radius);
  font-weight: 600;
  text-align: center;
  line-height: 1.8;
}

.stat {
  text-align: center;
  padding: 1.25rem;
  background: #f8fafc;
  border-radius: var(--radius);
  border: 1px solid #e5e7eb;
}

.stat strong {
  display: block;
  font-size: 1.75rem;
  color: var(--secondary);
  margin-bottom: 0.25rem;
}

.stat span {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.5;
}

.team-card {
  padding: 1.25rem;
  text-align: center;
}

.team-card.highlight {
  border: 2px solid var(--accent);
}

.avatar {
  width: 72px;
  height: 72px;
  margin: 0 auto 0.75rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 1.5rem;
}

.team-card h3 { margin: 0 0 0.25rem; font-size: 1.05rem; }
.team-card .role { color: var(--primary); font-weight: 600; font-size: 0.9rem; margin-bottom: 0.35rem; }
.team-card p { margin: 0; color: var(--muted); font-size: 0.88rem; }

.supervisor {
  max-width: 360px;
  margin: 0 auto 2rem;
  padding: 1.5rem;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border-radius: var(--radius);
  text-align: center;
  border: 3px solid var(--secondary);
}

.objective-main {
  padding: 1.75rem;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border-radius: var(--radius);
  text-align: center;
  margin-bottom: 1.5rem;
}

.download-wrap {
  display: grid;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 768px) {
  .download-wrap { grid-template-columns: 1fr 1fr; }
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
}

.check-list li {
  padding: 0.45rem 0;
  padding-inline-start: 1.5rem;
  position: relative;
}

.check-list li::before {
  content: '✓';
  position: absolute;
  inset-inline-start: 0;
  color: var(--secondary);
  font-weight: 700;
}

/* Footer */
.site-footer {
  background: linear-gradient(180deg, var(--primary-dark), #071018);
  color: rgba(255, 255, 255, 0.85);
  padding: 3rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-bottom: 2rem;
}

.site-footer h3, .site-footer h4 {
  color: var(--secondary);
  margin-top: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1.25rem;
  text-align: center;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.65);
}

.footer-bottom a { color: var(--secondary); font-weight: 600; }

/* Scroll top */
.scroll-top {
  position: fixed;
  bottom: 1.25rem;
  inset-inline-start: 1.25rem;
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  cursor: pointer;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transition: 0.25s;
  z-index: 90;
}

.scroll-top.visible { opacity: 1; visibility: visible; }

.progress-bar {
  position: fixed;
  top: 0;
  inset-inline: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--secondary), var(--accent));
  transform-origin: right;
  transform: scaleX(0);
  z-index: 110;
}