:root {
  --bg: #f7f8fa;
  --bg-elevated: #ffffff;
  --ink: #15202b;
  --ink-muted: #5b6775;
  --line: #dde3ea;
  --dash: #3d5a80;
  --entry: #0e6b6a;
  --admin: #6b2d3c;
  --wash: #eef2f6;
  --topbar: rgba(247, 248, 250, 0.9);
  --shadow: 0 14px 36px rgba(21, 32, 43, 0.08);
  --hero-panel: linear-gradient(145deg, #1b2430 0%, #3d5a80 72%, #4f6f95 100%);
  --note-bg: #eaf0f6;
  --note-border: #c9d6e4;
  --radius: 20px;
  --font-display: "Fraunces", "Noto Naskh Arabic", serif;
  --font-body: "IBM Plex Sans Arabic", "IBM Plex Sans", sans-serif;
}

html[data-theme="dark"] {
  --bg: #0c1118;
  --bg-elevated: #151c26;
  --ink: #f2f5f8;
  --ink-muted: #9aa6b4;
  --line: #2a3442;
  --wash: #1a2330;
  --topbar: rgba(12, 17, 24, 0.9);
  --shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
  --hero-panel: linear-gradient(145deg, #101820 0%, #2a405c 100%);
  --note-bg: #1a2635;
  --note-border: #33465c;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--font-body);
  line-height: 1.65;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.site-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 70% 45% at 100% 0%, rgba(61, 90, 128, 0.16), transparent 55%),
    radial-gradient(ellipse 55% 40% at 0% 20%, rgba(14, 107, 106, 0.10), transparent 50%),
    linear-gradient(180deg, var(--bg), var(--wash));
}

.site-motif {
  position: fixed;
  inset: 0;
  z-index: -1;
  opacity: 0.14;
  background-image: none;
  background-repeat: repeat;
  background-size: 200px auto;
  pointer-events: none;
}

html[data-theme="dark"] .site-motif {
  opacity: 0.1;
  filter: invert(1) brightness(1.35);
}

.wrap {
  width: min(1100px, calc(100% - 2rem));
  margin-inline: auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: var(--topbar);
  border-bottom: 1px solid var(--line);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 700;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  box-shadow: 0 6px 16px rgba(27, 36, 48, 0.22);
}

.brand span {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  padding: 0.5rem 0.85rem;
  border-radius: 999px;
  color: var(--ink-muted);
  font-size: 0.92rem;
  font-weight: 550;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--ink);
  background: var(--wash);
}

.controls {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-inline-start: 0.4rem;
  padding: 0.2rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg-elevated);
}

.toggle-btn {
  min-width: 3.1rem;
  height: 2.15rem;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--ink-muted);
  font: inherit;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  padding: 0 0.75rem;
}

.toggle-btn[aria-pressed="true"],
.toggle-btn:hover {
  background: var(--ink);
  color: var(--bg);
}

.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2.25rem;
  align-items: center;
  padding: 3.25rem 0 3.5rem;
}

.hero-visual {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  min-height: min(52vh, 460px);
  border-radius: 28px;
  overflow: hidden;
  background: var(--hero-panel);
  box-shadow: var(--shadow);
  animation: fade-up 700ms ease both;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: none;
  background-size: 160px auto;
  opacity: 0.22;
  filter: invert(1);
}

.hero-mark {
  position: relative;
  z-index: 1;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6.2vw, 4.8rem);
  font-weight: 700;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.96);
  line-height: 1;
  text-align: center;
  direction: ltr;
  unicode-bidi: isolate;
}

.hero-copy { animation: fade-up 700ms 80ms ease both; }

.hero-brand {
  margin: 0 0 0.9rem;
  font-family: var(--font-display);
  font-size: clamp(2.3rem, 4.8vw, 3.6rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.hero-lead {
  margin: 0 0 1.5rem;
  color: var(--ink-muted);
  font-size: 1.08rem;
  max-width: 34ch;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.9rem;
  padding: 0.7rem 1.2rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  transition: transform 160ms ease, background 160ms ease;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--ink);
  color: var(--bg);
}

.btn-ghost {
  background: var(--bg-elevated);
  border-color: var(--line);
  color: var(--ink);
}

.section { padding: 3.5rem 0; }

.section-head {
  max-width: 40rem;
  margin-bottom: 1.6rem;
}

.section-head h2 {
  margin: 0 0 0.55rem;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 2.8vw, 2.3rem);
  letter-spacing: -0.02em;
}

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

.pillars { display: grid; gap: 0; }

.pillar {
  padding: 1.2rem 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 8.5rem 1fr;
  gap: 1rem;
  opacity: 0;
  transform: translateY(12px);
}

.pillar.is-in {
  opacity: 1;
  transform: none;
  transition: opacity 550ms ease, transform 550ms ease;
}

.pillar strong {
  font-family: var(--font-display);
  font-size: 1.1rem;
}

.pillar p {
  margin: 0.2rem 0 0;
  color: var(--ink-muted);
}

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

.app-tile {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1.2rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  box-shadow: var(--shadow);
  min-height: 100%;
  transition: transform 180ms ease, border-color 180ms ease;
}

.app-tile:hover { transform: translateY(-3px); }

.app-tile img {
  width: 56px;
  height: 56px;
  border-radius: 14px;
}

.app-tile h3 { margin: 0; font-size: 1.12rem; }
.app-tile p { margin: 0; color: var(--ink-muted); flex: 1; }
.app-tile .open { font-weight: 700; }
.app-tile[data-app="viewer"] .open { color: var(--dash); }
.app-tile[data-app="entry"] .open { color: var(--entry); }
.app-tile[data-app="admin"] .open { color: var(--admin); }

.page-hero { padding: 3rem 0 1.5rem; }
.page-hero h1 {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.5vw, 2.7rem);
}
.page-hero p {
  margin: 0;
  max-width: 42rem;
  color: var(--ink-muted);
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.download-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  padding: 1.15rem;
  display: grid;
  gap: 0.75rem;
}

.download-item h3 {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

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

.badge {
  display: inline-block;
  margin-inline-start: 0.4rem;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  vertical-align: middle;
  background: var(--wash);
  color: var(--ink-muted);
  border: 1px solid var(--line);
}

.badge-ready {
  background: rgba(14, 107, 106, 0.12);
  color: var(--entry);
  border-color: rgba(14, 107, 106, 0.28);
}

.dl-stack {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  margin-top: 0.85rem;
}

.dl-stack .btn {
  width: 100%;
  justify-content: center;
  text-align: center;
}

.btn.is-disabled {
  opacity: 0.5;
  pointer-events: none;
}

.note {
  margin-top: 1.35rem;
  padding: 1rem 1.1rem;
  border-radius: 14px;
  background: var(--note-bg);
  border: 1px solid var(--note-border);
}

.creator {
  margin-top: 0.5rem;
  padding: 1.4rem 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  box-shadow: var(--shadow);
  display: grid;
  gap: 0.45rem;
  justify-items: start;
}

.creator h2 {
  margin: 0 0 0.25rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
}

.creator .role {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
}

.creator a {
  color: var(--dash);
  font-weight: 600;
}

.phone-ltr {
  direction: ltr;
  unicode-bidi: isolate;
  display: inline-block;
}

html[data-theme="dark"] .creator a {
  color: #9db4d4;
}

.footer {
  border-top: 1px solid var(--line);
  padding: 1.75rem 0 2.2rem;
  color: var(--ink-muted);
  font-size: 0.92rem;
  background: color-mix(in srgb, var(--wash) 70%, transparent);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: space-between;
  align-items: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem;
}

.footer-links a {
  color: var(--dash);
  font-weight: 650;
}

.policy-layout {
  display: grid;
  gap: 1rem;
  padding-bottom: 3rem;
}

.policy-card {
  padding: 1.35rem 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  box-shadow: var(--shadow);
}

.policy-card h2,
.policy-card h3 { margin-top: 0; }
.policy-card p:last-child,
.policy-card ul:last-child { margin-bottom: 0; }
.policy-card a { color: var(--dash); font-weight: 650; }

html[lang="ar"] .only-en,
html[lang="en"] .only-ar { display: none; }

@keyframes fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: none; }
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 1.75rem;
  }
  .hero-visual {
    min-height: 210px;
    order: -1;
  }
  .app-grid,
  .download-grid { grid-template-columns: 1fr; }
  .pillar { grid-template-columns: 1fr; }
  .nav a { padding: 0.45rem 0.65rem; font-size: 0.85rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}