/* ════════════════════════════════════════════════════════════
   GlobalAnything — Design System
   Palette: Deep Ink / Electric Teal / Warm Parchment
   Type: Inter (UI) + Noto Serif Arabic (display + RTL text)
   Signature element: The "language orbit" hero animation
   ════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Noto+Serif+Arabic:wght@400;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ─── Tokens ───────────────────────────────────────────────── */
:root {
  --ink-950: #0a0f1a;
  --ink-900: #111827;
  --ink-800: #1f2937;
  --ink-700: #374151;
  --ink-600: #4b5563;
  --ink-400: #9ca3af;
  --ink-200: #e5e7eb;
  --ink-100: #f3f4f6;
  --ink-50:  #f9fafb;

  --teal-500: #14b8a6;
  --teal-400: #2dd4bf;
  --teal-300: #5eead4;
  --teal-100: #ccfbf1;

  --amber-400: #fbbf24;
  --amber-100: #fef3c7;

  --parchment: #faf7f2;

  --bg:       var(--parchment);
  --bg-card:  #ffffff;
  --bg-muted: var(--ink-100);
  --border:   var(--ink-200);
  --text:     var(--ink-900);
  --text-muted: var(--ink-600);
  --accent:   var(--teal-500);
  --accent-light: var(--teal-100);

  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow:    0 4px 12px rgba(0,0,0,.10), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg: 0 12px 32px rgba(0,0,0,.12), 0 4px 8px rgba(0,0,0,.06);

  --font-ui:   'Inter', system-ui, sans-serif;
  --font-arab: 'Noto Serif Arabic', serif;
  --font-mono: 'JetBrains Mono', monospace;

  --nav-h: 64px;
  --transition: 0.18s ease;
}

[data-theme="dark"] {
  --bg:       var(--ink-950);
  --bg-card:  var(--ink-900);
  --bg-muted: var(--ink-800);
  --border:   var(--ink-700);
  --text:     #f1f5f9;
  --text-muted: var(--ink-400);
  --accent:   var(--teal-400);
  --accent-light: rgba(20,184,166,.15);
  --shadow-sm: 0 1px 3px rgba(0,0,0,.3);
  --shadow:    0 4px 12px rgba(0,0,0,.4);
  --shadow-lg: 0 12px 32px rgba(0,0,0,.5);
}

.high-contrast {
  --bg: #000; --bg-card: #111; --bg-muted: #1a1a1a;
  --text: #fff; --text-muted: #ccc; --border: #555;
  --accent: #0ff; --accent-light: rgba(0,255,255,.1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-ui);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  transition: background var(--transition), color var(--transition);
}

img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
button { cursor: pointer; font-family: var(--font-ui); border: none; }

/* ─── Typography ───────────────────────────────────────────── */
h1, h2, h3, h4 { line-height: 1.2; font-weight: 600; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); letter-spacing: -0.02em; }
h3 { font-size: 1.125rem; }

/* Arabic text areas use Noto Serif Arabic */
[dir="rtl"], textarea[dir="rtl"], .ar-text {
  font-family: var(--font-arab);
  line-height: 2;
}

/* ─── Layout ───────────────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ─── Nav ──────────────────────────────────────────────────── */
nav {
  position: sticky; top: 0; z-index: 100;
  height: var(--nav-h);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(8px);
}

.nav-inner {
  display: flex; align-items: center; gap: 16px;
  height: 100%; max-width: 1200px;
  margin: 0 auto; padding: 0 20px;
}

.brand {
  font-size: 1.25rem; font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--teal-300));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; white-space: nowrap;
  text-decoration: none;
}

.nav-links {
  display: flex; gap: 4px; margin-left: auto;
  list-style: none; align-items: center;
}

.nav-links a {
  padding: 6px 12px; border-radius: var(--radius-sm);
  color: var(--text-muted); font-size: 0.875rem; font-weight: 500;
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover { color: var(--text); background: var(--bg-muted); text-decoration: none; }

.ui-lang-switcher {
  display: flex; gap: 2px; padding: 3px;
  background: var(--bg-muted); border-radius: var(--radius);
}
.ui-lang-btn {
  padding: 4px 10px; border-radius: var(--radius-sm);
  background: none; color: var(--text-muted);
  font-size: 0.8rem; font-weight: 500;
  transition: all var(--transition);
}
.ui-lang-btn.active { background: var(--bg-card); color: var(--text); box-shadow: var(--shadow-sm); }

#theme-toggle {
  padding: 6px 12px; border-radius: var(--radius-sm);
  background: var(--bg-muted); color: var(--text-muted);
  font-size: 0.8rem; transition: all var(--transition);
}
#theme-toggle:hover { color: var(--text); }

/* ─── Hero ─────────────────────────────────────────────────── */
.hero {
  padding: 80px 0 60px;
  text-align: center;
  position: relative; overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% -10%, rgba(20,184,166,.12), transparent);
  pointer-events: none;
}

.hero-eyebrow {
  display: inline-block;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 4px 14px; border-radius: 100px;
  margin-bottom: 20px;
}

.hero h1 span { color: var(--accent); }

.hero-sub {
  font-size: 1.125rem; color: var(--text-muted);
  max-width: 560px; margin: 16px auto 32px;
}

/* Signature element: orbiting language characters */
.lang-orbit {
  position: relative; width: 260px; height: 260px;
  margin: 0 auto 40px;
}

.orbit-center {
  position: absolute; inset: 50%; transform: translate(-50%,-50%);
  width: 72px; height: 72px;
  background: linear-gradient(135deg, var(--teal-500), var(--teal-300));
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem; box-shadow: 0 0 32px rgba(20,184,166,.4);
  z-index: 2;
}

.orbit-ring {
  position: absolute; inset: 0;
  border-radius: 50%;
  border: 1px dashed rgba(20,184,166,.25);
  animation: spin 22s linear infinite;
}
.orbit-ring:nth-child(3) { inset: 20px; animation-direction: reverse; animation-duration: 16s; }

@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.orbit-char {
  position: absolute;
  width: 38px; height: 38px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; box-shadow: var(--shadow-sm);
  animation: counterSpin 22s linear infinite;
}
.orbit-ring:nth-child(3) .orbit-char { animation-duration: 16s; animation-direction: normal; }

@keyframes counterSpin { from { transform: rotate(0deg); } to { transform: rotate(-360deg); } }

/* Position orbit chars around circle */
.orbit-char:nth-child(1) { top: -19px; left: calc(50% - 19px); }
.orbit-char:nth-child(2) { top: calc(50% - 19px); right: -19px; }
.orbit-char:nth-child(3) { bottom: -19px; left: calc(50% - 19px); }
.orbit-char:nth-child(4) { top: calc(50% - 19px); left: -19px; }

.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent); color: #fff;
  padding: 14px 28px; border-radius: var(--radius);
  font-size: 1rem; font-weight: 600;
  box-shadow: 0 4px 16px rgba(20,184,166,.35);
  transition: all 0.2s; border: none;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(20,184,166,.45); }
.btn-primary:active { transform: none; }

.btn-secondary {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--bg-muted); color: var(--text);
  padding: 8px 16px; border-radius: var(--radius-sm);
  font-size: 0.875rem; font-weight: 500;
  border: 1px solid var(--border);
  transition: all var(--transition); white-space: nowrap;
}
.btn-secondary:hover { background: var(--border); }

/* ─── Features Grid ─────────────────────────────────────────── */
.features-section { padding: 64px 0; }

.section-eyebrow {
  text-align: center; color: var(--accent);
  font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title { text-align: center; margin-bottom: 48px; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}
.feature-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }

.feature-icon {
  width: 48px; height: 48px;
  background: var(--accent-light); border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; margin-bottom: 16px;
}
.feature-card h3 { margin-bottom: 8px; }
.feature-card p { color: var(--text-muted); font-size: 0.9rem; }

/* ─── Language Selector ─────────────────────────────────────── */
.lang-selector-wrap { padding: 32px 0 0; }

.lang-selector-label {
  font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: 12px;
}

#lang-selector {
  display: flex; flex-wrap: wrap; gap: 8px;
}

.lang-pill {
  display: flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: 100px;
  background: var(--bg-muted); border: 1.5px solid var(--border);
  color: var(--text-muted); font-size: 0.85rem; font-weight: 500;
  transition: all var(--transition);
}
.lang-pill:hover { border-color: var(--accent); color: var(--text); }
.lang-pill.active {
  background: var(--accent-light); border-color: var(--accent);
  color: var(--accent); font-weight: 600;
}
.lang-pill .flag { font-size: 1rem; }

/* ─── Mode Navigation ─────────────────────────────────────── */
.mode-nav {
  display: flex; gap: 4px; padding: 20px 0 0;
  border-bottom: 1px solid var(--border); margin-bottom: 24px;
  overflow-x: auto; scrollbar-width: none;
}
.mode-nav::-webkit-scrollbar { display: none; }

.mode-btn {
  padding: 10px 20px; border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  background: none; color: var(--text-muted);
  font-size: 0.9rem; font-weight: 500; white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: all var(--transition); position: relative; bottom: -1px;
}
.mode-btn:hover { color: var(--text); }
.mode-btn.active {
  color: var(--accent); border-bottom-color: var(--accent);
  background: var(--bg-card);
}

.mode-panel { display: none; }
.mode-panel.active { display: block; }

/* ─── App Section ───────────────────────────────────────────── */
.app-section { padding: 0 0 64px; }

.app-layout {
  display: grid; grid-template-columns: 1fr 340px;
  gap: 24px; align-items: start;
}

@media (max-width: 900px) {
  .app-layout { grid-template-columns: 1fr; }
}

/* ─── Text Area ─────────────────────────────────────────────── */
.textarea-wrap {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.textarea-toolbar {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px; border-bottom: 1px solid var(--border);
  background: var(--bg-muted); flex-wrap: wrap;
}

.toolbar-right { margin-left: auto; display: flex; gap: 4px; align-items: center; }

#main-textarea {
  width: 100%; min-height: 180px;
  padding: 16px 18px;
  background: transparent; color: var(--text);
  border: none; outline: none; resize: vertical;
  font-size: 1.1rem; font-family: var(--font-ui);
  line-height: 1.8;
}

.textarea-footer {
  display: flex; align-items: center; gap: 12px;
  padding: 8px 14px; border-top: 1px solid var(--border);
  font-size: 0.8rem; color: var(--text-muted);
  flex-wrap: wrap;
}
.detected-lang { margin-left: auto; }

/* ─── Keyboard ──────────────────────────────────────────────── */
.keyboard-wrap {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 16px;
  box-shadow: var(--shadow);
}

#keyboard-container { display: flex; flex-direction: column; gap: 6px; }

.key-row {
  display: flex; gap: 5px; justify-content: center; flex-wrap: wrap;
}

.key {
  min-width: 36px; height: 42px; padding: 0 6px;
  background: var(--bg-muted); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text);
  font-size: 1rem; font-weight: 500;
  box-shadow: 0 2px 0 var(--border);
  transition: background 0.1s, transform 0.1s, box-shadow 0.1s;
  display: flex; align-items: center; justify-content: center;
}

.key:hover { background: var(--accent-light); border-color: var(--accent); }
.key:active { transform: translateY(1px); box-shadow: none; }

.key-wide { min-width: 60px; }
.key-space { flex: 1; max-width: 200px; }
.key-enter, .key-backspace { background: var(--bg-muted); color: var(--text-muted); }

.key-shift, .key-enter, .key-backspace, .key-meta {
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.02em;
  min-width: 54px;
}

.key-diacritic {
  min-width: 30px; height: 36px;
  font-family: var(--font-arab); font-size: 1.2rem;
  background: var(--amber-100); border-color: var(--amber-400);
  color: var(--ink-900);
}
[data-theme="dark"] .key-diacritic { background: rgba(251,191,36,.15); color: var(--amber-400); }

.diacritics-row { align-items: center; }
.row-label { font-size: 0.7rem; color: var(--text-muted); margin-right: 4px; }

.large-keys .key { min-width: 48px; height: 54px; font-size: 1.15rem; }
.large-keys .key-wide { min-width: 72px; }

/* ─── Sidebar Panel ─────────────────────────────────────────── */
.sidebar { display: flex; flex-direction: column; gap: 20px; }

.panel-box {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.panel-head {
  padding: 12px 16px; background: var(--bg-muted);
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--text-muted);
}

.panel-body { padding: 12px 14px; }

/* Suggestions & Phrases */
#suggestions-container, #phrases-container {
  display: flex; flex-wrap: wrap; gap: 6px;
  min-height: 40px;
}

.suggestion-pill, .phrase-pill {
  padding: 5px 12px; border-radius: 100px;
  background: var(--accent-light); border: 1px solid var(--accent);
  color: var(--accent); font-size: 0.85rem; font-weight: 500;
  font-family: var(--font-arab);
  transition: all var(--transition);
}
.suggestion-pill:hover, .phrase-pill:hover {
  background: var(--accent); color: #fff;
}

/* ─── Transliteration Panel ─────────────────────────────────── */
.translit-panel { padding: 24px 0; }

.translit-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start;
}

@media (max-width: 600px) { .translit-grid { grid-template-columns: 1fr; } }

.translit-input-wrap label {
  display: block; font-size: 0.8rem; font-weight: 600;
  color: var(--text-muted); margin-bottom: 6px;
  text-transform: uppercase; letter-spacing: 0.06em;
}

#translit-input {
  width: 100%; padding: 12px 14px;
  background: var(--bg-card); color: var(--text);
  border: 1.5px solid var(--border); border-radius: var(--radius);
  font-size: 1rem; font-family: var(--font-ui); outline: none;
  transition: border-color var(--transition);
}
#translit-input:focus { border-color: var(--accent); }

.translit-arrow {
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; color: var(--accent); align-self: center;
}

@media (max-width: 600px) { .translit-arrow { transform: rotate(90deg); } }

.translit-preview-wrap {
  background: var(--bg-card); border: 1.5px solid var(--accent-light);
  border-radius: var(--radius); padding: 12px 14px; min-height: 54px;
  font-family: var(--font-arab); font-size: 1.4rem; direction: rtl;
  color: var(--accent);
}

#translit-suggestions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }

.translit-hint {
  font-size: 0.85rem; color: var(--text-muted);
  background: var(--bg-muted); border-radius: var(--radius);
  padding: 10px 14px; margin-top: 16px;
}

/* ─── Learn Section ─────────────────────────────────────────── */
.learn-panel { padding: 24px 0; }
.learn-tabs { display: flex; gap: 8px; margin-bottom: 24px; flex-wrap: wrap; }

.learn-tab-btn {
  padding: 8px 18px; border-radius: 100px;
  background: var(--bg-muted); border: 1.5px solid var(--border);
  color: var(--text-muted); font-size: 0.875rem; font-weight: 500;
  transition: all var(--transition);
}
.learn-tab-btn.active, .learn-tab-btn:hover {
  background: var(--accent-light); border-color: var(--accent); color: var(--accent);
}

.learn-section { display: none; }
.learn-section.active { display: block; }

.alpha-section-title {
  font-size: 1.1rem; font-weight: 600; margin-bottom: 16px;
  font-family: var(--font-arab); direction: rtl; color: var(--accent);
}

.alphabet-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(70px, 1fr)); gap: 8px;
}

.alpha-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 10px 6px; text-align: center;
  cursor: default; transition: all var(--transition);
}
.alpha-card:hover, .alpha-card:focus {
  border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-light); outline: none;
}
.alpha-char {
  display: block; font-size: 1.6rem; font-family: var(--font-arab);
  color: var(--text); line-height: 1.4;
}
.alpha-name { display: block; font-size: 0.65rem; color: var(--text-muted); margin-top: 2px; }
.alpha-roman { display: block; font-size: 0.7rem; font-family: var(--font-mono); color: var(--accent); }

/* Lessons */
.lessons-grid { display: grid; gap: 16px; }

.lesson-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 20px;
  box-shadow: var(--shadow-sm);
}
.lesson-header { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.lesson-flag { font-size: 1.3rem; }
.lesson-title { font-weight: 600; flex: 1; }
.lesson-level {
  background: var(--accent-light); color: var(--accent);
  font-size: 0.75rem; font-weight: 600; padding: 3px 10px;
  border-radius: 100px;
}
.lesson-text {
  font-family: var(--font-arab); font-size: 1.4rem;
  padding: 12px 16px; background: var(--bg-muted);
  border-radius: var(--radius); margin-bottom: 8px;
  letter-spacing: 0.1em;
}
.lesson-hint { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 12px; }

/* ─── Articles ──────────────────────────────────────────────── */
.articles-panel { padding: 24px 0; }

.articles-filter {
  display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px;
}

.filter-btn {
  padding: 6px 14px; border-radius: 100px;
  background: var(--bg-muted); border: 1.5px solid var(--border);
  color: var(--text-muted); font-size: 0.8rem; font-weight: 500;
  transition: all var(--transition);
}
.filter-btn.active, .filter-btn:hover {
  background: var(--accent-light); border-color: var(--accent); color: var(--accent);
}

.articles-list {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px;
}

.article-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 20px;
  box-shadow: var(--shadow-sm); transition: transform 0.2s, box-shadow 0.2s;
}
.article-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }

.article-meta { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.article-cat {
  background: var(--accent-light); color: var(--accent);
  font-size: 0.72rem; font-weight: 600; padding: 3px 10px;
  border-radius: 100px; text-transform: uppercase; letter-spacing: 0.05em;
}
.article-lang {
  font-size: 0.72rem; font-weight: 600; color: var(--text-muted);
  background: var(--bg-muted); padding: 3px 8px; border-radius: 100px;
}
.article-title {
  font-size: 0.975rem; font-weight: 600; margin-bottom: 8px; line-height: 1.4;
}
.article-desc {
  font-size: 0.85rem; color: var(--text-muted); margin-bottom: 14px; line-height: 1.5;
}
.article-link {
  font-size: 0.85rem; font-weight: 600; color: var(--accent);
}

/* ─── Modal ─────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,.6); backdrop-filter: blur(4px);
  display: none; align-items: center; justify-content: center;
  padding: 20px;
}
.modal-overlay.open { display: flex; }

.modal-box {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-xl); padding: 32px; max-width: 600px;
  width: 100%; max-height: 80vh; overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal-header { display: flex; align-items: start; gap: 16px; margin-bottom: 20px; }
.modal-header h2 { flex: 1; font-size: 1.2rem; line-height: 1.3; }
.modal-close {
  background: var(--bg-muted); border: 1px solid var(--border);
  color: var(--text-muted); width: 32px; height: 32px;
  border-radius: 50%; font-size: 1rem; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.modal-close:hover { color: var(--text); }

.article-full h4 { margin: 16px 0 8px; }
.article-full ul { padding-left: 20px; color: var(--text-muted); font-size: 0.9rem; }
.article-full ul li { margin-bottom: 6px; }
.article-full p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 12px; line-height: 1.7; }

/* ─── Install Banner ─────────────────────────────────────────── */
#install-banner {
  display: none; align-items: center; justify-content: space-between;
  gap: 12px; padding: 12px 20px;
  background: linear-gradient(135deg, var(--ink-900), var(--ink-800));
  color: #fff; font-size: 0.875rem;
  border-bottom: 1px solid var(--ink-700);
}
[data-theme="dark"] #install-banner { background: linear-gradient(135deg, var(--ink-800), var(--ink-700)); }

.install-left { display: flex; align-items: center; gap: 10px; }
.install-actions { display: flex; gap: 8px; }

/* ─── Toast ─────────────────────────────────────────────────── */
#toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--ink-900); color: #fff;
  padding: 10px 24px; border-radius: 100px;
  font-size: 0.9rem; font-weight: 500;
  opacity: 0; pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  z-index: 300;
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
[data-theme="dark"] #toast { background: var(--teal-500); }

/* ─── Language Info Card ──────────────────────────────────────── */
.lang-info-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px 16px; margin-top: 12px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 6px;
  font-size: 0.8rem;
}
.lang-info-row { display: contents; }
.lang-info-label { color: var(--text-muted); font-weight: 500; }
.lang-info-value { color: var(--text); font-weight: 600; }

/* ─── Accessibility Controls ─────────────────────────────────── */
.a11y-controls { display: flex; gap: 8px; padding: 12px 0; flex-wrap: wrap; }

/* ─── Footer ─────────────────────────────────────────────────── */
footer {
  background: var(--ink-950); color: var(--ink-400);
  padding: 48px 0 24px; margin-top: 64px;
  border-top: 1px solid var(--ink-800);
}
[data-theme="dark"] footer { background: #060a12; }

.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
  margin-bottom: 40px;
}

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}

.footer-brand .brand-text {
  font-size: 1.25rem; font-weight: 700;
  background: linear-gradient(135deg, var(--teal-500), var(--teal-300));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; display: block; margin-bottom: 10px;
}
.footer-desc { font-size: 0.875rem; line-height: 1.7; max-width: 280px; }
.footer-contact { font-size: 0.85rem; margin-top: 12px; }
.footer-contact a { color: var(--teal-400); }

.footer-col h4 {
  color: #fff; font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  margin-bottom: 14px;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-col ul a {
  font-size: 0.875rem; color: var(--ink-400);
  transition: color var(--transition);
}
.footer-col ul a:hover { color: var(--teal-400); text-decoration: none; }

.footer-bottom {
  border-top: 1px solid var(--ink-800);
  padding-top: 20px;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
}
.footer-bottom p { font-size: 0.8rem; }
.footer-langs { display: flex; gap: 8px; flex-wrap: wrap; }
.footer-lang-chip {
  background: var(--ink-800); color: var(--ink-400);
  font-size: 0.72rem; padding: 3px 10px; border-radius: 100px;
}

/* ─── Responsive ───────────────────────────────────────────── */
@media (max-width: 640px) {
  .nav-links { display: none; }
  .hero { padding: 48px 0 32px; }
  .lang-orbit { width: 200px; height: 200px; }
  .key { min-width: 28px; height: 38px; font-size: 0.9rem; }
  .key-wide { min-width: 44px; }
  .articles-list { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .mode-btn { padding: 8px 14px; font-size: 0.82rem; }
  .key { min-width: 24px; height: 36px; font-size: 0.85rem; padding: 0 3px; }
}

/* ─── Print ─────────────────────────────────────────────────── */
@media print {
  nav, footer, .keyboard-wrap, .mode-nav, .sidebar, .btn-primary, .btn-secondary { display: none !important; }
  .textarea-wrap { box-shadow: none; border: 1px solid #ccc; }
}

/* ─── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--ink-400); }

/* ─── Focus Styles ──────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}