/* =====================================================
   Appcorn Technologies — Shared Design System
   ===================================================== */

/* Google Fonts: Inter (EN) + Cairo (AR) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Cairo:wght@300;400;500;600;700;800&display=swap');

/* ── CSS Variables ─────────────────────────────────── */
:root {
  /* Colors */
  --color-bg:           #F8FAFC;
  --color-surface:      #FFFFFF;
  --color-nav:          #0F172A;
  --color-primary:      #1D4ED8;
  --color-primary-hover:#1E40AF;
  --color-accent:       #10B981;
  --color-accent-hover: #059669;
  --color-text:         #0F172A;
  --color-text-muted:   #64748B;
  --color-border:       #E2E8F0;
  --color-card-shadow:  0 1px 3px rgba(0,0,0,.07), 0 8px 24px rgba(0,0,0,.06);

  /* Spacing */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Typography */
  --font-en: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-ar: 'Cairo', 'Segoe UI', Tahoma, sans-serif;

  /* Borders */
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-full: 9999px;

  /* Nav height */
  --nav-height: 68px;

  /* Transitions */
  --transition: 0.2s ease;
}

/* ── Base Reset ────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-en);
  font-size: 1rem;
  line-height: 1.6;
  background-color: var(--color-bg);
  color: var(--color-text);
  transition: direction var(--transition), text-align var(--transition);
}

/* Arabic mode */
body.lang-ar {
  font-family: var(--font-ar);
  direction: rtl;
  text-align: right;
}

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

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

/* ── Navigation ────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  inset-inline-start: 0;
  width: 100%;
  height: var(--nav-height);
  background: var(--color-nav);
  z-index: 1000;
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--space-xl);
  gap: var(--space-lg);
}

/* Logo */
.logo {
  font-family: var(--font-en);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #FFFFFF;
  text-decoration: none;
  flex-shrink: 0;
}

.logo span {
  color: var(--color-accent);
}

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255,255,255,.7);
  transition: color var(--transition);
}

.nav-links a:hover {
  color: #FFFFFF;
}

/* Nav right (lang toggle + links) */
.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

/* Language toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
  color: rgba(255,255,255,.85);
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
  white-space: nowrap;
  font-family: var(--font-en);
}

.lang-toggle:hover {
  background: rgba(255,255,255,.15);
  border-color: rgba(255,255,255,.3);
}

.lang-toggle .globe-icon {
  width: 15px;
  height: 15px;
  opacity: .75;
}

/* ── Page Layout ───────────────────────────────────── */
.page-wrapper {
  padding-top: var(--nav-height);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
  width: 100%;
}

/* ── Hero ──────────────────────────────────────────── */
.hero {
  background: linear-gradient(155deg, #0F172A 0%, #1E293B 50%, #0F172A 100%);
  color: white;
  padding: var(--space-3xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 600px 400px at 20% 50%, rgba(16,185,129,.07) 0%, transparent 70%),
    radial-gradient(ellipse 500px 400px at 80% 20%, rgba(29,78,216,.1) 0%, transparent 60%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(16,185,129,.12);
  border: 1px solid rgba(16,185,129,.25);
  border-radius: var(--radius-full);
  padding: 0.3rem 0.9rem;
  margin-bottom: var(--space-lg);
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.12;
  margin-bottom: var(--space-lg);
  color: #FFFFFF;
}

body.lang-ar .hero-title {
  letter-spacing: 0;
  line-height: 1.3;
}

.hero-title .highlight {
  background: linear-gradient(90deg, #34D399, #6EE7B7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.15rem;
  font-weight: 400;
  color: rgba(255,255,255,.65);
  max-width: 560px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.7;
}

/* ── Section Titles ────────────────────────────────── */
.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-md);
  line-height: 1.2;
}

body.lang-ar .section-title {
  letter-spacing: 0;
  line-height: 1.4;
}

.section-desc {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 540px;
  line-height: 1.7;
}

.section-header {
  margin-bottom: var(--space-2xl);
}

.section-header.centered {
  text-align: center;
}

.section-header.centered .section-desc {
  margin: 0 auto;
}

/* ── App Card ──────────────────────────────────────── */
.apps-section {
  padding: var(--space-3xl) 0;
  background: var(--color-surface);
}

.app-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
  max-width: 860px;
  margin: 0 auto;
  box-shadow: var(--color-card-shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.app-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 6px rgba(0,0,0,.05), 0 20px 40px rgba(0,0,0,.1);
}

.app-icon-wrapper {
  flex-shrink: 0;
}

.app-icon-img {
  width: 100px;
  height: 100px;
  border-radius: 22px;
  box-shadow: 0 4px 16px rgba(0,0,0,.15);
  object-fit: cover;
}

.app-info {
  flex: 1;
  min-width: 0;
}

.app-name {
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

body.lang-ar .app-name {
  letter-spacing: 0;
}

.app-desc-text {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  line-height: 1.65;
}

.download-badges {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  align-items: center;
}

.badge-link {
  display: inline-block;
  transition: transform var(--transition), opacity var(--transition);
}

.badge-link:hover {
  transform: translateY(-2px);
  opacity: .9;
}

.badge-img {
  height: 44px;
  width: auto;
}

/* ── App Feature Grid ──────────────────────────────── */
.app-tagline {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.app-features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  margin: var(--space-lg) 0;
  border-top: 1px solid var(--color-border);
}

.app-feature-item {
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.875rem;
}

/* Add a right border to left-column items (first of each pair) */
.app-feature-item:nth-child(odd) {
  padding-inline-end: var(--space-lg);
  border-inline-end: 1px solid var(--color-border);
}

.app-feature-item:nth-child(even) {
  padding-inline-start: var(--space-lg);
}

.app-feature-item .feat-title {
  font-weight: 600;
  color: var(--color-text);
  display: block;
  margin-bottom: 0.15rem;
}

.app-feature-item .feat-desc {
  color: var(--color-text-muted);
  display: block;
  line-height: 1.5;
}

.app-why-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin: var(--space-md) 0 var(--space-lg);
}

.app-why-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: rgba(16,185,129,.08);
  border: 1px solid rgba(16,185,129,.2);
  color: #065F46;
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
}

/* Wider app card for richer content */
.app-card-full {
  max-width: 960px;
  align-items: flex-start;
}

.app-card-full .app-info {
  padding-top: 0.2rem;
}

@media (max-width: 768px) {
  .app-features-grid {
    grid-template-columns: 1fr;
  }
  .app-card-full {
    align-items: center;
  }
}

/* ── About Section ─────────────────────────────────── */
.about-section {
  padding: var(--space-3xl) 0;
  background: var(--color-bg);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

.about-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
}

.about-card-icon {
  width: 44px;
  height: 44px;
  background: rgba(29,78,216,.08);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  font-size: 1.3rem;
}

.about-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.about-card-text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ── Content Pages (Support / Privacy) ────────────── */
.content-page {
  padding: var(--space-3xl) 0;
  flex: 1;
}

.content-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl) var(--space-3xl);
  box-shadow: var(--color-card-shadow);
  max-width: 760px;
  margin: 0 auto;
}

.content-card h1 {
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

body.lang-ar .content-card h1 {
  letter-spacing: 0;
}

.content-card h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
}

.content-card p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  line-height: 1.75;
}

.content-card ul {
  padding-inline-start: 1.5rem;
  margin-bottom: var(--space-md);
}

body.lang-ar .content-card ul {
  padding-inline-start: 1.5rem;
  padding-inline-end: 0;
}

.content-card li {
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  line-height: 1.7;
}

.content-card strong {
  color: var(--color-text);
  font-weight: 600;
}

.contact-box {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-xl);
  margin: var(--space-lg) 0;
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.contact-box-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
}

.contact-box a {
  color: var(--color-primary);
  font-weight: 600;
  transition: color var(--transition);
}

.contact-box a:hover {
  color: var(--color-primary-hover);
}

/* ── Footer ────────────────────────────────────────── */
.site-footer {
  background: var(--color-nav);
  color: rgba(255,255,255,.55);
  padding: var(--space-2xl) 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.footer-logo {
  font-family: var(--font-en);
  font-size: 1.1rem;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: -0.02em;
}

.footer-logo span {
  color: var(--color-accent);
}

.footer-copy {
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
}

.footer-links a {
  font-size: 0.85rem;
  color: rgba(255,255,255,.55);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: #FFFFFF;
}

/* ── Page Not Found ────────────────────────────────── */
.not-found-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--nav-height) - 100px);
  text-align: center;
  padding: var(--space-2xl);
}

.not-found-code {
  font-size: 7rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: var(--space-md);
}

.not-found-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.not-found-desc {
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  max-width: 400px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--color-primary);
  color: #FFFFFF;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  text-decoration: none;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

/* ── Responsive ────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-inner {
    padding: 0 var(--space-lg);
  }

  .nav-links {
    display: none;
  }

  .hero {
    padding: var(--space-2xl) 0;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .app-card {
    flex-direction: column;
    text-align: center;
    padding: var(--space-xl);
    gap: var(--space-lg);
  }

  body.lang-ar .app-card {
    text-align: center;
  }

  .download-badges {
    justify-content: center;
  }

  .content-card {
    padding: var(--space-xl) var(--space-lg);
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }

  body.lang-ar .footer-inner {
    align-items: flex-end;
  }

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

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-lg);
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .badge-img {
    height: 40px;
  }
}