:root {
  --navy: #0f172a;
  --navy-deep: #020617;
  --slate: #334155;
  --accent: #0369a1;
  --gold: #d69e2e;
  --bg: #f4f7fb;
  --fg: #020617;
  --line: rgba(226, 232, 240, 0.7);
  --white: #ffffff;
  --radius: 1rem;
  --touch: 44px;
  --font: "Vazirmatn", Tahoma, sans-serif;
  --shadow: 0 24px 60px rgba(2, 6, 23, 0.28);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
  .reveal { opacity: 1 !important; transform: none !important; }
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--fg);
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(3, 105, 161, 0.12), transparent 55%),
    radial-gradient(900px 500px at 0% 20%, rgba(214, 158, 46, 0.08), transparent 50%),
    var(--bg);
}

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

a { color: inherit; }

.skip {
  position: absolute;
  inset-inline-start: -999px;
}
.skip:focus {
  inset-inline-start: 1rem;
  top: 1rem;
  z-index: 40;
  background: var(--white);
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--navy) 88%, transparent);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner {
  min-height: 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
  color: var(--white);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.logo-dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(214, 158, 46, 0.22);
}

.nav {
  display: none;
  gap: 1.25rem;
}

.nav a {
  text-decoration: none;
  color: rgba(248, 250, 252, 0.82);
  font-size: 0.92rem;
  min-height: var(--touch);
  display: inline-flex;
  align-items: center;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--touch);
  padding: 0.7rem 1.25rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 180ms var(--ease), background 180ms ease, border-color 180ms ease;
}

.btn:active { transform: scale(0.97); }
.btn:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}

.btn-accent {
  background: var(--accent);
  color: var(--white);
}

.btn-gold {
  background: linear-gradient(135deg, #e8b84a, var(--gold) 45%, #b7791f);
  color: var(--navy-deep);
}

.btn-ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.35);
}

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

/* Hero */
.hero {
  position: relative;
  min-height: min(100dvh, 920px);
  display: grid;
  align-items: end;
  overflow: hidden;
  color: var(--white);
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transform: scale(1.02);
  animation: heroDrift 18s var(--ease) infinite alternate;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(2, 6, 23, 0.35) 0%, rgba(2, 6, 23, 0.72) 48%, rgba(2, 6, 23, 0.94) 100%),
    radial-gradient(600px 280px at 70% 30%, rgba(3, 105, 161, 0.25), transparent 70%);
}

.hero-copy {
  position: relative;
  z-index: 1;
  padding: 6.5rem 0 4rem;
  max-width: 40rem;
  margin-inline: auto 0;
}

.brand-mark {
  margin: 0 0 0.75rem;
  font-size: clamp(2.6rem, 8vw, 4.8rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.04em;
  color: var(--white);
  text-shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
}

.brand-mark::after {
  content: "";
  display: inline-block;
  width: 0.55rem;
  height: 0.55rem;
  margin-inline-start: 0.45rem;
  border-radius: 50%;
  background: var(--gold);
  vertical-align: 0.55em;
}

.hero h1 {
  margin: 0 0 0.85rem;
  font-size: clamp(1.35rem, 3.4vw, 2rem);
  font-weight: 700;
  line-height: 1.35;
  color: rgba(248, 250, 252, 0.96);
}

.lede {
  margin: 0 0 0.85rem;
  color: rgba(226, 232, 240, 0.88);
  font-size: 1.05rem;
  max-width: 34rem;
}

.byline {
  margin: 0 0 1.5rem;
  color: rgba(248, 250, 252, 0.78);
  font-size: 0.95rem;
}

.byline strong {
  color: var(--gold);
  font-weight: 700;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

@keyframes heroDrift {
  from { transform: scale(1.02) translateY(0); }
  to { transform: scale(1.06) translateY(-1.5%); }
}

/* Sections */
.section {
  padding: clamp(3.5rem, 8vw, 5.5rem) 0;
}

.section-head {
  margin-bottom: 2rem;
  max-width: 36rem;
}

.section-head h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.55rem, 3vw, 2.1rem);
  letter-spacing: -0.02em;
}

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

/* Tour / gallery */
.tour {
  background: linear-gradient(180deg, transparent, rgba(15, 23, 42, 0.03));
}

.stage-frame {
  margin: 0;
  border-radius: calc(var(--radius) + 4px);
  overflow: hidden;
  border: 1px solid rgba(15, 23, 42, 0.12);
  box-shadow: var(--shadow);
  background: var(--navy);
  aspect-ratio: 16 / 10;
}

.stage-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: opacity 220ms ease;
}

.stage-guide {
  margin: 1.15rem 0 1.35rem;
  padding: 1.15rem 1.2rem;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.stage-guide h3 {
  margin: 0 0 0.45rem;
  font-size: 1.2rem;
}

.stage-guide p {
  margin: 0 0 0.75rem;
  color: var(--slate);
  font-size: 0.98rem;
}

.guide-steps {
  margin: 0;
  padding: 0 1.1rem 0 0;
  color: var(--navy);
  display: grid;
  gap: 0.35rem;
}

.guide-steps li {
  padding: 0.15rem 0;
}

.thumbs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.thumb {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: 0.9rem;
  padding: 0.45rem;
  text-align: right;
  cursor: pointer;
  min-height: var(--touch);
  transition: border-color 180ms ease, transform 180ms var(--ease), box-shadow 180ms ease;
}

.thumb img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: top;
  border-radius: 0.65rem;
  margin-bottom: 0.45rem;
}

.thumb span {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--slate);
  padding: 0 0.2rem 0.2rem;
}

.thumb:hover { transform: translateY(-2px); }
.thumb.is-active {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(3, 105, 161, 0.18);
}
.thumb.is-active span { color: var(--navy); }

.thumb:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}

/* Modules — interaction containers, not marketing card clutter */
.module-grid {
  display: grid;
  gap: 1rem;
}

.module {
  padding: 1.35rem 1.25rem;
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--white) 86%, #dbeafe);
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-inline-start: 4px solid var(--accent);
}

.module h3 {
  margin: 0 0 0.4rem;
  font-size: 1.15rem;
}

.module p {
  margin: 0;
  color: var(--slate);
  font-size: 0.95rem;
}

.poster-band {
  padding: 0 0 2rem;
}

.poster-band img {
  width: 100%;
  border-radius: calc(var(--radius) + 2px);
  border: 1px solid rgba(15, 23, 42, 0.12);
  box-shadow: 0 18px 50px rgba(2, 6, 23, 0.18);
}

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

.flow .section-head p { color: rgba(226, 232, 240, 0.75); }

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: center;
  padding: 1.1rem 1.2rem;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.steps strong {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--gold);
  color: var(--navy-deep);
  font-size: 1rem;
}

.tech-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.tech-list li {
  min-height: var(--touch);
  display: flex;
  align-items: center;
  padding: 0.85rem 1rem;
  border-radius: 0.85rem;
  background: var(--white);
  border: 1px solid rgba(15, 23, 42, 0.08);
  font-weight: 600;
  font-size: 0.92rem;
}

.final-cta {
  padding: 4.5rem 0;
  text-align: center;
  background:
    radial-gradient(700px 280px at 50% 0%, rgba(214, 158, 46, 0.22), transparent 70%),
    linear-gradient(180deg, #0b1220, var(--navy-deep));
  color: var(--white);
}

.final-cta h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
}

.final-cta p {
  margin: 0 0 1.4rem;
  color: rgba(226, 232, 240, 0.8);
}

.site-footer {
  background: var(--navy-deep);
  color: rgba(226, 232, 240, 0.7);
  padding: 1.25rem 0 1.75rem;
  font-size: 0.9rem;
}

.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-footer a {
  color: var(--gold);
  text-decoration: none;
}

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 380ms var(--ease), transform 380ms var(--ease);
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

/* Guide tutorials */
.guide {
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.02), transparent);
}

.guide-block {
  display: grid;
  gap: 1.25rem;
  margin-bottom: 2rem;
  align-items: center;
}

.guide-block:last-child { margin-bottom: 0; }

.guide-media {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(15, 23, 42, 0.1);
  box-shadow: 0 14px 36px rgba(2, 6, 23, 0.12);
  background: var(--navy);
}

.guide-media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: top center;
}

.guide-body h3 {
  margin: 0 0 0.55rem;
  font-size: clamp(1.2rem, 2.4vw, 1.55rem);
}

.guide-body p {
  margin: 0 0 0.75rem;
  color: var(--slate);
}

.guide-body ul {
  margin: 0;
  padding: 0 1.1rem 0 0;
  display: grid;
  gap: 0.45rem;
  color: var(--navy);
}

.guide-body code {
  font-family: ui-monospace, Consolas, monospace;
  font-size: 0.88em;
  background: rgba(3, 105, 161, 0.1);
  padding: 0.1rem 0.35rem;
  border-radius: 0.35rem;
}

.demo-accounts {
  margin-top: 2rem;
  padding: 1.25rem 1.3rem;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.demo-accounts h3 {
  margin: 0 0 0.65rem;
  font-size: 1.05rem;
  color: var(--gold);
}

.demo-accounts ul {
  margin: 0;
  padding: 0 1.1rem 0 0;
  display: grid;
  gap: 0.4rem;
  color: rgba(248, 250, 252, 0.88);
}

.demo-accounts code {
  font-family: ui-monospace, Consolas, monospace;
  color: #7dd3fc;
}

.maker {
  padding-top: 1rem;
}

.maker-inner {
  text-align: center;
  padding: 2.5rem 1.5rem;
  border-radius: calc(var(--radius) + 4px);
  background:
    radial-gradient(500px 180px at 50% 0%, rgba(214, 158, 46, 0.16), transparent 70%),
    var(--white);
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.maker-label {
  margin: 0 0 0.35rem;
  color: var(--slate);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
}

.maker-inner h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  letter-spacing: -0.03em;
  color: var(--navy);
}

.maker-text {
  margin: 0 auto;
  max-width: 38rem;
  color: var(--slate);
}

@media (min-width: 720px) {
  .thumbs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .module-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .tech-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .hero-copy { padding-bottom: 5rem; }
  .guide-block {
    grid-template-columns: 1.05fr 1fr;
    gap: 1.75rem;
    margin-bottom: 2.75rem;
  }
  .guide-block.reverse .guide-media { order: 2; }
  .guide-block.reverse .guide-body { order: 1; }
}

@media (min-width: 980px) {
  .nav { display: flex; }
  .thumbs { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .module-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .hero-copy {
    width: min(1120px, calc(100% - 2rem));
    margin-inline: auto;
    padding-inline: 0;
  }
}