/* Arabic Root Explorer — clean, mobile-friendly, RTL-aware styles.
   Google Fonts: Amiri (Arabic display), Inter (Latin UI).
   Accent palette: deep green #0e5a3a. */

:root {
  --green-900: #0a3d27;
  --green-700: #0e5a3a;
  --green-600: #127247;
  --green-500: #178a56;
  --teal-300: #6fd3a5;
  --bg: #f6f8f7;
  --card-bg: #ffffff;
  --text: #1a2b23;
  --muted: #5c6f66;
  --border: #dde7e1;
  --shadow: 0 6px 18px rgba(14, 90, 58, 0.08);
  --radius: 14px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", "Amiri", system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

html[lang="ar"] body {
  font-family: "Amiri", "Inter", system-ui, sans-serif;
}

html[lang="ar"] .word,
html[lang="ar"] .root-letters,
html[lang="ar"] .meaning.ar {
  font-family: "Amiri", serif;
}

/* ---------- top back link ---------- */

.back-link {
  display: inline-block;
  padding: 12px 20px;
  color: var(--green-700);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.15s ease;
}

.back-link:hover {
  color: var(--green-500);
}

/* ---------- hero ---------- */

.hero {
  background: linear-gradient(135deg, var(--green-900), var(--green-600) 60%, var(--green-500));
  color: #fff;
  text-align: center;
  padding: 48px 20px 64px;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(111, 211, 165, 0.25), transparent 45%);
  pointer-events: none;
}

.hero h1 {
  font-family: "Amiri", serif;
  font-size: 2.6rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  position: relative;
}

.subtitle {
  margin-top: 10px;
  font-size: 1.05rem;
  opacity: 0.92;
  position: relative;
}

/* ---------- layout ---------- */

.container {
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
  padding: 0 20px;
  flex: 1;
}

/* ---------- search ---------- */

.search-box {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 26px;
  margin-top: -34px;
  position: relative;
  z-index: 2;
}

.search-box label {
  display: block;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--green-700);
}

.input-row {
  display: flex;
  gap: 12px;
}

.input-row input {
  flex: 1;
  padding: 14px 16px;
  font-size: 1.4rem;
  font-family: "Amiri", serif;
  border: 2px solid var(--border);
  border-radius: 10px;
  outline: none;
  transition: border-color 0.15s ease;
  background: #fbfdfc;
  color: var(--text);
}

.input-row input:focus {
  border-color: var(--green-500);
}

.input-row button {
  padding: 14px 28px;
  font-size: 1.05rem;
  font-weight: 700;
  background: var(--green-700);
  color: #fff;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
  white-space: nowrap;
}

.input-row button:hover {
  background: var(--green-600);
}

.input-row button:active {
  transform: scale(0.97);
}

.hint {
  margin-top: 10px;
  font-size: 0.88rem;
  color: var(--muted);
}

/* ---------- results ---------- */

.results {
  margin-top: 28px;
}

.empty-state {
  text-align: center;
  padding: 46px 20px;
  color: var(--muted);
  background: var(--card-bg);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

.empty-icon {
  display: block;
  font-size: 2rem;
  margin-bottom: 8px;
}

.root-header {
  margin-bottom: 18px;
}

.root-letters {
  font-family: "Amiri", serif;
  font-size: 2.2rem;
  color: var(--green-900);
}

.root-translit {
  color: var(--muted);
  font-size: 0.95rem;
}

.root-count {
  color: var(--green-600);
  font-weight: 600;
  font-size: 0.9rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 16px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 20px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(14, 90, 58, 0.14);
}

.card .word {
  font-family: "Amiri", serif;
  font-size: 1.7rem;
  color: var(--green-900);
}

.card .pattern {
  display: inline-block;
  margin-top: 4px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--green-600);
  background: rgba(23, 138, 86, 0.1);
  padding: 2px 10px;
  border-radius: 999px;
}

.meanings {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 0.92rem;
}

.meaning.ar {
  font-family: "Amiri", serif;
  font-size: 1.05rem;
  color: var(--text);
}

.meaning.en {
  color: var(--muted);
}

/* ---------- not found / suggestions ---------- */

.not-found {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 24px;
  box-shadow: var(--shadow);
}

.not-found h2 {
  font-family: "Amiri", serif;
  color: var(--green-900);
  margin-bottom: 6px;
}

.not-found p {
  color: var(--muted);
}

.suggestions {
  margin-top: 18px;
}

.suggestions h3 {
  font-size: 0.95rem;
  color: var(--green-700);
  margin-bottom: 10px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip {
  font-family: "Amiri", serif;
  font-size: 1.25rem;
  padding: 8px 18px;
  background: #f0f7f3;
  color: var(--green-700);
  border: 1px solid var(--teal-300);
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.chip:hover {
  background: var(--green-700);
  color: #fff;
}

/* ---------- about ---------- */

.about {
  margin-top: 36px;
  padding: 24px 26px;
  background: linear-gradient(135deg, #eef7f2, #f6faf8);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.about h2 {
  font-family: "Amiri", serif;
  color: var(--green-900);
  margin-bottom: 8px;
}

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

/* ---------- footer ---------- */

.footer {
  margin-top: 48px;
  padding: 20px;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.lang-toggle {
  padding: 8px 20px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--green-700);
  background: #fff;
  border: 1.5px solid var(--green-700);
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.lang-toggle:hover {
  background: var(--green-700);
  color: #fff;
}

/* ---------- responsive ---------- */

@media (max-width: 560px) {
  .hero h1 {
    font-size: 1.9rem;
  }

  .input-row {
    flex-direction: column;
  }

  .input-row button {
    width: 100%;
  }

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

  .search-box {
    padding: 20px;
  }
}