/* ================================
   WordUnscrambler4Me — Stylesheet
   Bright, playful, word-game energy
   ================================ */

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

:root {
  --ink:         #1e293b;
  --ink-soft:    #475569;
  --ink-mute:    #94a3b8;
  --bg:          #f8faff;
  --white:       #ffffff;
  --primary:     #7c3aed;
  --primary-lt:  #f5f3ff;
  --primary-dk:  #6d28d9;
  --teal:        #0891b2;
  --teal-lt:     #ecfeff;
  --green:       #059669;
  --green-lt:    #ecfdf5;
  --amber:       #d97706;
  --amber-lt:    #fffbeb;
  --rose:        #e11d48;
  --rose-lt:     #fff1f2;
  --orange:      #ea580c;
  --orange-lt:   #fff7ed;
  --border:      #e2e8f0;
  --shadow-sm:   0 1px 3px rgba(30,41,59,0.07);
  --shadow-md:   0 4px 18px rgba(30,41,59,0.10);
  --shadow-lg:   0 12px 40px rgba(30,41,59,0.13);
  --radius:      16px;
  --radius-sm:   10px;
  --font-display: 'Nunito', 'Trebuchet MS', system-ui, sans-serif;
  --font-body:    'Nunito', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  font-size: 16px;
}
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ---- Header ---- */
.site-header {
  background: var(--white);
  border-bottom: 2px solid var(--border);
  position: sticky; top: 0; z-index: 200;
  box-shadow: var(--shadow-sm);
}
.hdr-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 66px;
}
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo-icon { font-size: 26px; }
.logo-text {
  font-family: var(--font-display);
  font-size: 22px; color: var(--primary);
  font-weight: 800; letter-spacing: -0.5px;
}
.site-nav { display: flex; gap: 24px; }
.site-nav a {
  text-decoration: none; color: var(--ink-soft);
  font-size: 14px; font-weight: 700; transition: color 0.15s;
}
.site-nav a:hover { color: var(--primary); }
.mob-menu-btn {
  display: none; background: none; border: 1.5px solid var(--border);
  border-radius: 8px; padding: 6px 10px; font-size: 18px; cursor: pointer; color: var(--ink-soft);
}

/* ---- Hero ---- */
.hero {
  background: linear-gradient(135deg, #f5f3ff 0%, #faf5ff 35%, #ecfeff 70%, #f0fdf4 100%);
  padding: 56px 0 0; position: relative; overflow: hidden;
  border-bottom: 2px solid var(--border);
}
.hero::before {
  content: '';
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 50% 60% at 90% 30%, rgba(124,58,237,0.09) 0%, transparent 70%),
    radial-gradient(ellipse 40% 50% at 10% 80%, rgba(8,145,178,0.08) 0%, transparent 70%);
}
.hero-inner {
  display: grid; grid-template-columns: 1fr 1.1fr;
  gap: 40px; align-items: center; position: relative; z-index: 1;
}
.hero-text { padding-bottom: 56px; }
.hero-text h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.1; color: var(--ink); margin-bottom: 14px;
}
.hero-text h1 em { font-style: normal; color: var(--primary); }
.hero-sub { font-size: 17px; color: var(--ink-soft); max-width: 380px; line-height: 1.65; font-weight: 600; }
.hero-badges { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 18px; }
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  background: var(--white); border: 1.5px solid var(--border);
  border-radius: 20px; padding: 5px 12px; font-size: 13px;
  color: var(--ink-soft); font-weight: 700;
  box-shadow: var(--shadow-sm);
}

/* ---- Main Unscrambler Card ---- */
.unscrambler-card {
  background: var(--white);
  border-radius: var(--radius) var(--radius) 0 0;
  box-shadow: var(--shadow-lg);
  border: 2px solid var(--border); border-bottom: none;
  overflow: hidden;
}
.card-header {
  background: var(--primary);
  padding: 16px 24px;
  display: flex; align-items: center; gap: 10px;
}
.card-header h2 {
  color: var(--white); font-size: 16px; font-weight: 800;
  letter-spacing: -0.3px;
}
.card-header .card-icon { font-size: 22px; }
.card-body { padding: 24px; }

.letters-input-wrap { position: relative; margin-bottom: 14px; }
.letters-input {
  width: 100%;
  padding: 18px 60px 18px 20px;
  font-size: 28px;
  font-weight: 900;
  font-family: var(--font-display);
  letter-spacing: 6px;
  text-transform: uppercase;
  border: 2.5px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--primary);
  background: var(--primary-lt);
  transition: border-color 0.15s, box-shadow 0.15s;
  text-align: center;
}
.letters-input:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(124,58,237,0.12);
}
.clear-btn {
  position: absolute; right: 14px; top: 50%; transform: translateY(-50%);
  background: var(--border); border: none; border-radius: 50%;
  width: 32px; height: 32px; cursor: pointer; font-size: 16px;
  color: var(--ink-soft); display: flex; align-items: center; justify-content: center;
  transition: background 0.15s;
}
.clear-btn:hover { background: #cbd5e1; }

.filter-row {
  display: flex; gap: 10px; margin-bottom: 14px; flex-wrap: wrap;
}
.filter-item { display: flex; flex-direction: column; gap: 4px; flex: 1; min-width: 120px; }
.filter-item label {
  font-size: 11px; font-weight: 800; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--ink-mute);
}
.filter-item input, .filter-item select {
  padding: 9px 12px; border: 1.5px solid var(--border); border-radius: 8px;
  font-family: var(--font-body); font-size: 14px; font-weight: 600; color: var(--ink);
  background: var(--white);
}
.filter-item input:focus, .filter-item select:focus {
  outline: none; border-color: var(--primary);
}
.unscramble-btn {
  width: 100%; padding: 16px;
  background: var(--primary); color: var(--white);
  border: none; border-radius: var(--radius-sm);
  font-family: var(--font-display); font-size: 18px; font-weight: 900;
  cursor: pointer; transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
  box-shadow: 0 3px 10px rgba(124,58,237,0.3);
  letter-spacing: 0.5px;
}
.unscramble-btn:hover { background: var(--primary-dk); box-shadow: 0 5px 18px rgba(124,58,237,0.4); }
.unscramble-btn:active { transform: scale(0.99); }

/* ---- Results ---- */
.results-area { border-top: 2px solid var(--border); }
.results-summary {
  padding: 14px 24px; background: var(--primary-lt);
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px;
}
.results-summary .found-count {
  font-size: 15px; font-weight: 800; color: var(--primary);
}
.results-summary .sort-wrap { display: flex; align-items: center; gap: 8px; }
.results-summary select {
  padding: 5px 10px; border: 1.5px solid var(--border); border-radius: 8px;
  font-family: var(--font-body); font-size: 13px; font-weight: 600; color: var(--ink);
}
.length-tabs {
  display: flex; gap: 6px; padding: 12px 24px; flex-wrap: wrap;
  background: var(--white); border-bottom: 1px solid var(--border);
}
.len-tab {
  padding: 4px 12px; border: 1.5px solid var(--border); border-radius: 20px;
  font-size: 13px; font-weight: 700; cursor: pointer; color: var(--ink-soft);
  background: var(--white); transition: all 0.12s;
}
.len-tab.active, .len-tab:hover {
  background: var(--primary); color: var(--white); border-color: var(--primary);
}
.words-container { padding: 16px 24px 24px; }
.word-group { margin-bottom: 20px; }
.word-group h4 {
  font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--ink-mute); margin-bottom: 10px; display: flex; align-items: center; gap: 6px;
}
.word-group h4 .count-pill {
  background: var(--primary-lt); color: var(--primary);
  border-radius: 12px; padding: 1px 8px; font-size: 11px;
}
.words-flex { display: flex; flex-wrap: wrap; gap: 7px; }
.word-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: 10px;
  font-size: 15px; font-weight: 800; cursor: pointer;
  transition: transform 0.12s, box-shadow 0.12s;
  text-decoration: none; color: inherit;
  border: 1.5px solid transparent;
}
.word-chip:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.word-chip .chip-score {
  font-size: 11px; font-weight: 700; opacity: 0.7;
  background: rgba(0,0,0,0.08); border-radius: 6px; padding: 1px 5px;
}
/* Length-based colours */
.wc-2 { background: #fee2e2; color: #991b1b; border-color: #fca5a5; }
.wc-3 { background: #ffedd5; color: #9a3412; border-color: #fdba74; }
.wc-4 { background: #fef9c3; color: #854d0e; border-color: #fde047; }
.wc-5 { background: #dcfce7; color: #166534; border-color: #86efac; }
.wc-6 { background: #cffafe; color: #155e75; border-color: #67e8f9; }
.wc-7 { background: #ede9fe; color: #5b21b6; border-color: #c4b5fd; }
.wc-8 { background: #fce7f3; color: #9d174d; border-color: #f9a8d4; }
.wc-9 { background: #f0fdf4; color: #14532d; border-color: #86efac; }
.no-results {
  text-align: center; padding: 32px;
  color: var(--ink-mute); font-size: 16px; font-weight: 600;
}
.no-results .emoji { font-size: 40px; display: block; margin-bottom: 10px; }

/* ---- Scrabble scores ---- */
.scrabble-values {
  display: flex; flex-wrap: wrap; gap: 6px; padding: 16px 24px;
  border-top: 1px solid var(--border); background: #fffbeb;
}
.tile {
  width: 36px; height: 36px; border-radius: 6px;
  background: #fbbf24; color: var(--ink); font-weight: 900; font-size: 14px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  position: relative; box-shadow: 0 2px 4px rgba(0,0,0,0.15);
  cursor: default; line-height: 1;
}
.tile span { font-size: 8px; font-weight: 700; position: absolute; bottom: 2px; right: 3px; color: #78350f; }

/* ---- Ad slots ---- */
.ad-slot {
  background: var(--white); border: 1.5px dashed var(--border);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-mute); font-size: 12px; font-weight: 600;
}
.ad-leaderboard { min-height: 90px; margin: 24px auto; }
.ad-rectangle { min-height: 250px; margin: 0 auto 36px; max-width: 700px; }

/* ---- Feature cards ---- */
.features-section { padding: 48px 0 40px; }
.section-title {
  font-family: var(--font-display); font-size: 2rem; font-weight: 900;
  color: var(--ink); margin-bottom: 6px;
}
.section-sub { font-size: 15px; color: var(--ink-soft); font-weight: 600; margin-bottom: 28px; }
.features-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px;
}
.feature-card {
  background: var(--white); border: 2px solid var(--border);
  border-radius: var(--radius); padding: 20px;
  text-decoration: none; color: var(--ink);
  display: block; transition: box-shadow 0.15s, transform 0.15s, border-color 0.15s;
}
.feature-card:hover {
  box-shadow: var(--shadow-md); transform: translateY(-3px);
}
.feature-card.fc-purple { border-top: 4px solid var(--primary); }
.feature-card.fc-teal   { border-top: 4px solid var(--teal); }
.feature-card.fc-green  { border-top: 4px solid var(--green); }
.feature-card.fc-amber  { border-top: 4px solid var(--amber); }
.feature-card.fc-rose   { border-top: 4px solid var(--rose); }
.feature-card.fc-orange { border-top: 4px solid var(--orange); }
.feature-icon { font-size: 30px; display: block; margin-bottom: 10px; }
.feature-card h3 { font-size: 15px; font-weight: 800; margin-bottom: 5px; }
.feature-card p { font-size: 13px; color: var(--ink-soft); line-height: 1.5; font-weight: 600; }
.feature-card .new-badge {
  display: inline-block; font-size: 10px; font-weight: 800;
  text-transform: uppercase; letter-spacing: 0.07em;
  background: var(--primary); color: white;
  border-radius: 6px; padding: 2px 7px; margin-bottom: 8px;
}

/* ---- Daily challenge ---- */
.daily-card {
  background: linear-gradient(135deg, var(--primary) 0%, #6d28d9 100%);
  border-radius: var(--radius); padding: 28px; color: var(--white);
  margin-bottom: 32px; position: relative; overflow: hidden;
}
.daily-card::before {
  content: '🎯';
  position: absolute; right: 24px; top: 50%; transform: translateY(-50%);
  font-size: 80px; opacity: 0.15;
}
.daily-card h3 {
  font-size: 13px; font-weight: 800; text-transform: uppercase;
  letter-spacing: 0.1em; opacity: 0.75; margin-bottom: 8px;
}
.daily-scrambled {
  font-size: 2.5rem; font-weight: 900; letter-spacing: 8px;
  font-family: var(--font-display); margin-bottom: 14px;
}
.daily-hint { font-size: 14px; opacity: 0.75; margin-bottom: 16px; }
.daily-input {
  width: 100%; padding: 12px 16px;
  border: 2px solid rgba(255,255,255,0.3); border-radius: 10px;
  background: rgba(255,255,255,0.12); color: var(--white);
  font-family: var(--font-display); font-size: 18px; font-weight: 800;
  text-transform: uppercase; letter-spacing: 3px; margin-bottom: 10px;
  text-align: center;
}
.daily-input::placeholder { color: rgba(255,255,255,0.4); }
.daily-input:focus { outline: none; border-color: rgba(255,255,255,0.7); }
.daily-actions { display: flex; gap: 10px; }
.daily-btn {
  padding: 10px 20px; border: none; border-radius: 8px; cursor: pointer;
  font-family: var(--font-display); font-size: 14px; font-weight: 800;
  transition: opacity 0.15s;
}
.daily-btn.primary { background: var(--white); color: var(--primary); }
.daily-btn.secondary { background: rgba(255,255,255,0.15); color: var(--white); border: 1.5px solid rgba(255,255,255,0.3); }
.daily-btn:hover { opacity: 0.9; }
.daily-streak { font-size: 13px; opacity: 0.7; margin-top: 10px; }

/* ---- Scrabble checker ---- */
.checker-section { background: var(--white); border-radius: var(--radius); padding: 28px; border: 2px solid var(--border); margin-bottom: 32px; }
.checker-result {
  margin-top: 16px; padding: 16px; border-radius: var(--radius-sm);
  font-size: 16px; font-weight: 800; text-align: center; display: none;
}
.checker-result.valid { background: var(--green-lt); color: var(--green); border: 1.5px solid #6ee7b7; }
.checker-result.invalid { background: var(--rose-lt); color: var(--rose); border: 1.5px solid #fda4af; }

/* ---- Word value calc ---- */
.value-section { background: var(--white); border-radius: var(--radius); padding: 28px; border: 2px solid var(--border); margin-bottom: 32px; }
.tiles-display { display: flex; flex-wrap: wrap; gap: 6px; margin: 14px 0; min-height: 50px; }
.total-score {
  font-family: var(--font-display); font-size: 2.5rem; font-weight: 900;
  color: var(--amber); text-align: center; margin-top: 10px;
}
.total-score span { font-size: 14px; color: var(--ink-mute); font-weight: 700; display: block; }

/* ---- FAQ ---- */
.faq-section { padding: 0 0 48px; }
.faq-list { display: flex; flex-direction: column; gap: 8px; max-width: 780px; }
.faq-item {
  background: var(--white); border: 2px solid var(--border);
  border-radius: var(--radius-sm); overflow: hidden;
}
.faq-item summary {
  padding: 16px 20px; font-weight: 800; font-size: 15px;
  cursor: pointer; list-style: none;
  display: flex; justify-content: space-between; align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+'; font-size: 22px; color: var(--primary); font-weight: 300; flex-shrink: 0;
  transition: transform 0.2s;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { padding: 0 20px 16px; font-size: 14px; color: var(--ink-soft); line-height: 1.7; font-weight: 600; }

/* ---- Page hero (sub-pages) ---- */
.page-hero {
  background: linear-gradient(135deg, #f5f3ff 0%, #ecfeff 60%, #f0fdf4 100%);
  padding: 48px 0; border-bottom: 2px solid var(--border);
}
.page-hero h1 { font-family: var(--font-display); font-size: clamp(2rem,4vw,3rem); font-weight: 900; color: var(--ink); }
.page-hero h1 em { font-style: normal; color: var(--primary); }
.page-hero p { color: var(--ink-soft); font-size: 16px; font-weight: 600; margin-top: 10px; max-width: 500px; }
.page-body { padding: 40px 0 60px; }

/* ---- Legal pages ---- */
.legal-page { padding: 48px 0 80px; }
.legal-page h1 { font-family: var(--font-display); font-size: 2.5rem; font-weight: 900; margin-bottom: 8px; }
.legal-page .updated { font-size: 13px; color: var(--ink-mute); margin-bottom: 40px; }
.legal-page h2 { font-family: var(--font-display); font-size: 1.4rem; font-weight: 800; margin: 32px 0 12px; }
.legal-page p, .legal-page li { font-size: 15px; color: var(--ink-soft); line-height: 1.8; margin-bottom: 10px; font-weight: 600; }
.legal-page ul { padding-left: 20px; margin-bottom: 16px; }
.legal-max { max-width: 720px; }

/* ---- Footer ---- */
.site-footer {
  background: var(--ink); color: rgba(255,255,255,0.6);
  padding: 48px 0 0;
}
.footer-inner {
  display: grid; grid-template-columns: 1fr 2fr;
  gap: 48px; padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .logo-text { color: var(--white); font-size: 20px; }
.footer-brand p { font-size: 14px; margin-top: 8px; line-height: 1.6; font-weight: 600; }
.footer-links { display: flex; gap: 48px; flex-wrap: wrap; }
.footer-col { display: flex; flex-direction: column; gap: 10px; min-width: 130px; }
.footer-col h4 { font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: 0.09em; color: var(--white); margin-bottom: 4px; }
.footer-col a { font-size: 14px; color: rgba(255,255,255,0.55); text-decoration: none; font-weight: 600; transition: color 0.15s; }
.footer-col a:hover { color: #c4b5fd; }
.footer-bottom { padding: 20px 0; font-size: 13px; text-align: center; font-weight: 600; }

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; gap: 24px; }
  .hero-text { padding-bottom: 0; }
  .hero-text h1 { font-size: 2.2rem; }
  .unscrambler-card { border-radius: var(--radius); }
  .filter-row { flex-direction: column; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .site-nav { display: none; flex-direction: column; position: absolute; top: 66px; left: 0; right: 0; background: var(--white); border-bottom: 2px solid var(--border); padding: 16px 24px; gap: 14px; box-shadow: var(--shadow-md); }
  .site-nav.open { display: flex; }
  .mob-menu-btn { display: block; }
  .features-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .features-grid { grid-template-columns: 1fr; }
  .daily-scrambled { font-size: 2rem; letter-spacing: 5px; }
}