/* ============================================
   Black Rain Portal — Style Sheet
   Dark theme · Neon blue accents · RTL · Low resource
   ============================================ */

:root {
  --bg-deep: #07070b;
  --bg-primary: #0a0a0f;
  --bg-card: #12121a;
  --bg-card-hover: #1a1a26;
  --border: #1e1e2e;
  --border-soft: rgba(56, 189, 248, 0.12);
  --text: #e8e8f0;
  --text-muted: #9a9ab0;
  --neon: #38bdf8;
  --neon-dim: rgba(56, 189, 248, 0.35);
  --neon-glow: rgba(56, 189, 248, 0.15);
  --accent: #0ea5e9;
  --radius: 14px;
  --radius-sm: 8px;
  --font: "Vazirmatn", system-ui, -apple-system, "Segoe UI", Tahoma, sans-serif;
  --header-h: 68px;
  --transition: 0.25s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  #rain-canvas {
    display: none !important;
  }
}

body {
  font-family: var(--font);
  background: var(--bg-deep);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ---- Digital Rain Canvas ---- */
#rain-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.45;
}

.page-wrapper {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ---- Header ---- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: var(--header-h);
}

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

.logo {
  text-decoration: none;
  color: var(--text);
}

.logo-text {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.12em;
  background: linear-gradient(135deg, #e8e8f0 0%, var(--neon) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav {
  display: flex;
  gap: 1.75rem;
  align-items: center;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--neon);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  right: 0;
  width: 0;
  height: 2px;
  background: var(--neon);
  transition: width var(--transition);
}

.nav-link:hover::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ---- Hero ---- */
.hero {
  padding: 5.5rem 0 4.5rem;
  text-align: center;
}

.hero-title {
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto 2rem;
  font-weight: 400;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.6rem;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition), box-shadow var(--transition),
    transform var(--transition), opacity var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #0284c7);
  color: #fff;
  box-shadow: 0 4px 20px var(--neon-glow);
}

.btn-primary:hover {
  box-shadow: 0 6px 28px var(--neon-dim);
  transform: translateY(-2px);
}

.btn-card {
  width: 100%;
  margin-top: auto;
  background: transparent;
  color: var(--neon);
  border: 1px solid var(--neon-dim);
}

.btn-card:hover:not(:disabled) {
  background: var(--neon-glow);
  border-color: var(--neon);
}

.btn-card:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  color: var(--text-muted);
  border-color: var(--border);
}

/* ---- Sections ---- */
.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  text-align: center;
}

.section-desc {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  font-size: 0.98rem;
}

.services {
  padding: 3rem 0 4rem;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

/* ---- Cards ---- */
.card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  transition: border-color var(--transition), background var(--transition),
    transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  border-color: var(--border-soft);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
}

.card-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.12);
  color: var(--neon);
  border: 1px solid var(--border-soft);
}

.card-badge.ready {
  background: rgba(34, 197, 94, 0.12);
  color: #4ade80;
  border-color: rgba(34, 197, 94, 0.25);
}

.card-icon {
  width: 48px;
  height: 48px;
  color: var(--neon);
  opacity: 0.9;
}

.card-icon svg {
  width: 100%;
  height: 100%;
}

.card-title {
  font-size: 1.2rem;
  font-weight: 600;
}

.card-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  flex-grow: 1;
}

/* ---- Future ---- */
.future {
  padding: 2.5rem 0 4rem;
}

.future-list {
  max-width: 560px;
  margin: 0 auto;
}

.future-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.9rem 1.1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.95rem;
}

.future-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon);
  opacity: 0.6;
  flex-shrink: 0;
}

/* ---- About ---- */
.about {
  padding: 2.5rem 0 5rem;
}

.about-text {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
  color: var(--text-muted);
  font-size: 1rem;
}

/* ---- Footer ---- */
.footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  background: rgba(7, 7, 11, 0.9);
  padding: 2rem 0 1.5rem;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}

.footer-nav {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition);
}

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

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-muted);
  opacity: 0.8;
}

/* ---- Animations (respect reduced motion) ---- */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  animation: fadeUp 0.6s ease forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .fade-in {
    opacity: 1;
    transform: none;
    animation: none;
  }
}

/* ---- Mobile ---- */
@media (max-width: 768px) {
  .nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    right: 0;
    left: 0;
    flex-direction: column;
    background: rgba(10, 10, 15, 0.98);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    gap: 0;
  }

  .nav.open {
    display: flex;
  }

  .nav-link {
    padding: 0.85rem 1.5rem;
    width: 100%;
    text-align: right;
  }

  .nav-link::after {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .hero {
    padding: 3.5rem 0 3rem;
  }

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

  #rain-canvas {
    opacity: 0.28;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.55rem;
  }

  .card {
    padding: 1.4rem 1.2rem;
  }
}

/* Focus visible for accessibility */
:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
}

button:focus:not(:focus-visible),
a:focus:not(:focus-visible) {
  outline: none;
}