/* Local fonts: no external font/CDN requests */
@font-face {
  font-family: "Altmind Latin";
  src: url("../assets/fonts/Inter-Regular.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Altmind Latin";
  src: url("../assets/fonts/Inter-Medium.woff2") format("woff2");
  font-style: normal;
  font-weight: 500;
  font-display: swap;
}

@font-face {
  font-family: "Altmind Latin";
  src: url("../assets/fonts/Inter-SemiBold.woff2") format("woff2");
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: "Altmind Latin";
  src: url("../assets/fonts/Inter-Bold.woff2") format("woff2");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}

@font-face {
  font-family: "Altmind Persian";
  src: url("../assets/fonts/NotoSansArabic-Regular.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Altmind Persian";
  src: url("../assets/fonts/NotoSansArabic-Medium.woff2") format("woff2");
  font-style: normal;
  font-weight: 500;
  font-display: swap;
}

@font-face {
  font-family: "Altmind Persian";
  src: url("../assets/fonts/NotoSansArabic-SemiBold.woff2") format("woff2");
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: "Altmind Persian";
  src: url("../assets/fonts/NotoSansArabic-Bold.woff2") format("woff2");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}

:root {
  --bg: #050b16;
  --bg-elevated: #0a1628;
  --bg-panel: rgba(12, 28, 52, 0.72);
  --line: rgba(56, 189, 248, 0.28);
  --cyan: #38bdf8;
  --cyan-bright: #7dd3fc;
  --green: #22c55e;
  --green-soft: #4ade80;
  --text: #e8f1ff;
  --muted: #9fb3c8;
  --white: #ffffff;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --radius: 18px;
  --font-en: "Altmind Latin", "Segoe UI", Arial, sans-serif;
  --font-fa: "Altmind Persian", Tahoma, Arial, sans-serif;
  --max: 1120px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(34, 197, 94, 0.12), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 20%, rgba(56, 189, 248, 0.1), transparent 50%),
    radial-gradient(ellipse 50% 30% at 0% 60%, rgba(56, 189, 248, 0.08), transparent 45%),
    var(--bg);
  font-family: var(--font-en);
  line-height: 1.6;
  overflow-x: hidden;
}

body[dir="rtl"] {
  font-family: var(--font-fa);
}

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

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

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* Nav */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
  background: rgba(5, 11, 22, 0.82);
  border-bottom: 1px solid rgba(56, 189, 248, 0.15);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand img {
  width: 40px;
  height: 40px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--cyan-bright);
}

.lang-toggle {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  background: rgba(8, 20, 36, 0.9);
}

.lang-toggle button {
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 0.45rem 0.85rem;
  cursor: pointer;
  font: inherit;
  font-size: 0.85rem;
}

.lang-toggle button.active {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.25), rgba(34, 197, 94, 0.2));
  color: var(--white);
}

/* Hero */
.hero {
  position: relative;
  min-height: min(100vh, 920px);
  display: grid;
  align-items: end;
  padding: 4rem 0 3.5rem;
  overflow: hidden;
}

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

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  opacity: 0.42;
  filter: saturate(1.05) contrast(1.05);
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(5, 11, 22, 0.35) 0%, rgba(5, 11, 22, 0.55) 45%, rgba(5, 11, 22, 0.96) 100%),
    linear-gradient(90deg, rgba(5, 11, 22, 0.65), transparent 40%, transparent 60%, rgba(5, 11, 22, 0.65));
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--green-soft);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

body[dir="rtl"] .eyebrow {
  text-transform: none;
  letter-spacing: 0;
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  line-height: 1.12;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.hero h1 .accent {
  color: var(--cyan-bright);
  text-shadow: 0 0 28px rgba(56, 189, 248, 0.35);
}

.hero-lead {
  margin: 0 0 1.75rem;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  max-width: 38rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.35rem;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.btn-primary {
  background: linear-gradient(135deg, #22c55e, #16a34a 40%, #0ea5e9);
  color: #041018;
  box-shadow: 0 10px 30px rgba(34, 197, 94, 0.25);
}

.btn-ghost {
  background: rgba(8, 20, 36, 0.65);
  border-color: var(--line);
  color: var(--text);
}

/* Sections */
section {
  padding: 5rem 0;
}

.section-head {
  margin-bottom: 2.25rem;
  max-width: 42rem;
}

.section-head h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.7rem, 3.5vw, 2.4rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

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

.panel {
  border: 1px solid var(--line);
  background: var(--bg-panel);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

/* Feature grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.feature-item {
  padding: 1.35rem 1.4rem;
}

.feature-item h3 {
  margin: 0 0 0.45rem;
  font-size: 1.1rem;
  color: var(--cyan-bright);
}

.feature-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.feature-icon {
  width: 42px;
  height: 42px;
  margin-bottom: 0.85rem;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, rgba(56, 189, 248, 0.18), rgba(34, 197, 94, 0.12));
  border: 1px solid rgba(56, 189, 248, 0.25);
  color: var(--green-soft);
  font-size: 1.15rem;
}

/* Highlight strip */
.iran-strip {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1.25rem;
  align-items: stretch;
}

.iran-copy {
  padding: 2rem;
}

.iran-copy h2 {
  margin-top: 0;
}

.iran-visual {
  overflow: hidden;
  min-height: 280px;
}

.iran-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Apps */
.app-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.app-grid article {
  padding: 1.1rem 1.15rem;
  text-align: center;
}

.app-grid strong {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--cyan-bright);
}

.app-grid span {
  color: var(--muted);
  font-size: 0.92rem;
}

/* Specs */
.specs-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
}

.spec-table th,
.spec-table td {
  padding: 0.9rem 1rem;
  text-align: start;
  border-bottom: 1px solid rgba(56, 189, 248, 0.12);
}

.spec-table th {
  color: var(--muted);
  font-weight: 500;
  width: 48%;
}

.spec-table td {
  color: var(--text);
  font-weight: 600;
}

.spec-table tr:last-child th,
.spec-table tr:last-child td {
  border-bottom: 0;
}

.versions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
  padding: 1rem;
}

.version {
  padding: 1.1rem;
  border: 1px solid rgba(56, 189, 248, 0.18);
  border-radius: 14px;
  background: rgba(5, 14, 28, 0.55);
}

.version .count {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--green-soft);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.version h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
}

.version p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

/* Visual split */
.split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 1.25rem;
  align-items: center;
}

.split-copy h2 {
  margin-top: 0;
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0 0;
  display: grid;
  gap: 0.7rem;
}

.checklist li {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  color: var(--muted);
}

.checklist li::before {
  content: "✓";
  color: var(--green);
  font-weight: 700;
  margin-top: 0.1rem;
}

.shot {
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.shot img {
  width: 100%;
  height: auto;
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.9rem;
  counter-reset: step;
}

.step {
  padding: 1.25rem;
  position: relative;
}

.step::before {
  counter-increment: step;
  content: counter(step);
  display: inline-grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  margin-bottom: 0.85rem;
  background: rgba(56, 189, 248, 0.15);
  border: 1px solid var(--line);
  color: var(--cyan-bright);
  font-weight: 700;
}

.step h3 {
  margin: 0 0 0.4rem;
  font-size: 1.02rem;
}

.step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

/* Environments */
.env-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.env-item {
  padding: 1rem 0.85rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.95rem;
  border: 1px solid rgba(56, 189, 248, 0.16);
  border-radius: 14px;
  background: rgba(8, 18, 34, 0.55);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.env-item:hover {
  border-color: rgba(34, 197, 94, 0.45);
  transform: translateY(-2px);
  color: var(--text);
}

/* Services */
.services {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.service {
  padding: 1.2rem 1.25rem;
}

.service h3 {
  margin: 0 0 0.4rem;
  color: var(--cyan-bright);
  font-size: 1.05rem;
}

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

/* Contact */
.contact {
  padding: 2rem;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.5rem;
  align-items: center;
}

.contact h2 {
  margin: 0 0 0.6rem;
}

.contact p {
  margin: 0 0 1rem;
  color: var(--muted);
}

.contact-links {
  display: grid;
  gap: 0.75rem;
}

.contact-links a {
  padding: 0.95rem 1.1rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(5, 14, 28, 0.6);
}

.contact-links a strong {
  display: block;
  color: var(--green-soft);
  margin-bottom: 0.15rem;
}

.site-footer {
  padding: 2rem 0 2.5rem;
  border-top: 1px solid rgba(56, 189, 248, 0.12);
  color: var(--muted);
  font-size: 0.9rem;
}

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

/* Motion */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }

  .reveal.visible {
    opacity: 1;
    transform: none;
  }

  .hero-content {
    animation: rise 0.9s ease both;
  }

  @keyframes rise {
    from {
      opacity: 0;
      transform: translateY(24px);
    }
    to {
      opacity: 1;
      transform: none;
    }
  }
}

/* Responsive */
@media (max-width: 960px) {
  .iran-strip,
  .specs-layout,
  .split,
  .contact {
    grid-template-columns: 1fr;
  }

  .steps,
  .env-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 680px) {
  .nav-links a:not(.lang-toggle a) {
    display: none;
  }

  .feature-grid,
  .versions,
  .services,
  .steps,
  .env-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 3rem;
  }
}

/* Utility classes replacing inline styles so CSP can disallow inline CSS */
.mt-3-5 { margin-top: 3.5rem; }
.mt-1-5 { margin-top: 1.5rem; }
.mt-1-25 { margin-top: 1.25rem; }
.overflow-hidden { overflow: hidden; }