/* ===== ROOT VARIABLES ===== */
:root {
  --bg: #0F1117;
  --bg2: #1A1D2E;
  --bg3: #252840;
  --primary: #7C3AED;
  --primary-light: #9D5CF6;
  --primary-glow: rgba(124, 58, 237, 0.3);
  --teal: #06B6D4;
  --teal-glow: rgba(6, 182, 212, 0.2);
  --text: #F8F9FF;
  --text-muted: #9CA3AF;
  --text-dim: #6B7280;
  --border: rgba(255,255,255,0.08);
  --border-hover: rgba(124,58,237,0.5);
  --card-shadow: 0 4px 24px rgba(0,0,0,0.4);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.18s ease;
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
img { max-width: 100%; display: block; }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* ===== TOPBAR ===== */
.topbar {
  background: rgba(15,17,23,0.95);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 0 1.5rem;
}
.topbar-inner {
  max-width: 1400px;
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  flex-shrink: 0;
}
.logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--teal));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}
.logo-text span { color: var(--primary-light); }

/* Clipboard bar */
.clipboard-bar {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 30px;
  padding: 0.4rem 1rem;
  min-width: 0;
  max-width: 600px;
  margin: 0 auto;
}
.clipboard-label {
  font-size: 0.7rem;
  color: var(--text-dim);
  white-space: nowrap;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.clipboard-symbols {
  display: flex;
  gap: 0.3rem;
  flex-wrap: nowrap;
  overflow: hidden;
  flex: 1;
  min-width: 0;
}
.clipboard-chip {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.15rem 0.5rem;
  font-size: 1.1rem;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  position: relative;
}
.clipboard-chip:hover { border-color: var(--primary); background: var(--primary-glow); }
.clipboard-empty { font-size: 0.75rem; color: var(--text-dim); font-style: italic; }
.clipboard-clear {
  font-size: 0.7rem;
  color: var(--text-dim);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  transition: var(--transition);
  white-space: nowrap;
}
.clipboard-clear:hover { color: #EF4444; }

/* Nav right */
.topbar-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}
.lang-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: var(--transition);
}
.lang-btn:hover { border-color: var(--primary); color: var(--text); }
.search-btn {
  width: 36px; height: 36px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: var(--transition);
}
.search-btn:hover { border-color: var(--primary); color: var(--text); }

/* Lang dropdown */
.lang-wrapper { position: relative; }
.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.5rem;
  min-width: 160px;
  display: none;
  z-index: 999;
  box-shadow: var(--card-shadow);
}
.lang-dropdown.open { display: block; }
.lang-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}
.lang-option:hover, .lang-option.active { background: var(--bg3); color: var(--text); }
.lang-option .flag { font-size: 1.1rem; }

/* ===== HERO ===== */
.hero {
  text-align: center;
  padding: 4rem 1.5rem 2rem;
  max-width: 860px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(124,58,237,0.12);
  border: 1px solid rgba(124,58,237,0.3);
  border-radius: 20px;
  padding: 0.3rem 0.9rem;
  font-size: 0.78rem;
  color: var(--primary-light);
  letter-spacing: 0.04em;
  margin-bottom: 1.25rem;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.15;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #fff 40%, var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto;
}

/* ===== SEARCH BAR ===== */
.search-section {
  max-width: 640px;
  margin: 1.5rem auto 0;
  padding: 0 1.5rem;
}
.search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.search-icon {
  position: absolute;
  left: 1rem;
  color: var(--text-dim);
  font-size: 0.9rem;
  pointer-events: none;
}
#searchInput {
  width: 100%;
  padding: 0.85rem 1rem 0.85rem 2.8rem;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 30px;
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
}
#searchInput:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-glow); }
#searchInput::placeholder { color: var(--text-dim); }
.search-results {
  position: absolute;
  top: calc(100% + 8px);
  left: 0; right: 0;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.5rem;
  z-index: 500;
  display: none;
  max-height: 300px;
  overflow-y: auto;
  box-shadow: var(--card-shadow);
}
.search-results.show { display: block; }
.search-result-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}
.search-result-item:hover { background: var(--bg3); }
.search-result-sym { font-size: 1.4rem; width: 2rem; text-align: center; }
.search-result-info { font-size: 0.8rem; color: var(--text-muted); }
.search-result-name { color: var(--text); font-size: 0.9rem; }

/* ===== SECTION WRAPPER ===== */
.section {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
}
.section-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.section-title .icon { font-size: 1.1rem; }
.section-line {
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--teal));
  border-radius: 2px;
  margin-bottom: 1.25rem;
}

/* ===== CATEGORY TABS ===== */
.tabs-section { padding-top: 2rem; }
.tabs-wrap {
  display: flex;
  gap: 0.4rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scrollbar-width: none;
  margin-bottom: 1.5rem;
}
.tabs-wrap::-webkit-scrollbar { display: none; }
.tab-btn {
  padding: 0.5rem 1rem;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--bg2);
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 500;
  white-space: nowrap;
  transition: var(--transition);
}
.tab-btn:hover { border-color: var(--primary); color: var(--text); }
.tab-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* ===== SYMBOL GRID ===== */
.symbol-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(52px, 1fr));
  gap: 0.4rem;
}
.sym-card {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  user-select: none;
}
.sym-card:hover {
  border-color: var(--primary);
  background: var(--bg3);
  box-shadow: 0 0 16px var(--primary-glow);
  transform: scale(1.1);
  z-index: 2;
}
.sym-card.copied {
  border-color: var(--teal);
  background: var(--teal-glow);
  box-shadow: 0 0 16px var(--teal-glow);
}
.sym-tooltip {
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.25rem 0.5rem;
  font-size: 0.7rem;
  color: var(--text);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s;
  z-index: 10;
}
.sym-card:hover .sym-tooltip { opacity: 1; }

/* ===== COPY TOAST ===== */
#copyToast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--primary);
  color: #fff;
  padding: 0.6rem 1.5rem;
  border-radius: 30px;
  font-size: 0.9rem;
  font-weight: 600;
  z-index: 9999;
  transition: transform 0.3s cubic-bezier(0.34,1.56,0.64,1);
  pointer-events: none;
  box-shadow: 0 8px 24px var(--primary-glow);
}
#copyToast.show { transform: translateX(-50%) translateY(0); }

/* ===== PAGES GRID ===== */
.pages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.75rem;
}
.page-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  color: var(--text);
}
.page-card:hover {
  border-color: var(--primary);
  background: var(--bg3);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--primary-glow);
}
.page-card-icon { font-size: 1.6rem; flex-shrink: 0; }
.page-card-label { font-size: 0.82rem; color: var(--text-muted); line-height: 1.4; }
.page-card-name { font-size: 0.9rem; font-weight: 600; color: var(--text); }

/* ===== TOOLS SECTION ===== */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}
.tool-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.tool-card:hover {
  border-color: var(--teal);
  box-shadow: 0 8px 24px var(--teal-glow);
  transform: translateY(-2px);
}
.tool-card-icon {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--teal));
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
}
.tool-card-name { font-size: 1rem; font-weight: 700; }
.tool-card-desc { font-size: 0.82rem; color: var(--text-muted); line-height: 1.5; }
.tool-card-link {
  font-size: 0.8rem;
  color: var(--teal);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: auto;
}

/* ===== TRENDING ===== */
.trending-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.75rem;
}
.trending-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  color: var(--text);
}
.trending-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--primary-glow);
}
.trending-sym { font-size: 2.2rem; }
.trending-name { font-size: 0.9rem; font-weight: 600; }
.trending-meta { font-size: 0.75rem; color: var(--text-dim); }
.trending-badge {
  font-size: 0.68rem;
  background: rgba(124,58,237,0.15);
  color: var(--primary-light);
  border-radius: 4px;
  padding: 0.1rem 0.4rem;
  width: fit-content;
}

/* ===== FOOTER ===== */
footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  margin-top: 3rem;
  padding: 3rem 1.5rem 1.5rem;
}
.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}
.footer-brand { max-width: 300px; }
.footer-brand .logo { font-size: 1.2rem; margin-bottom: 0.75rem; }
.footer-brand p { font-size: 0.82rem; color: var(--text-dim); line-height: 1.7; }
.footer-col h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 1rem;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col ul li a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: var(--transition);
}
.footer-col ul li a:hover { color: var(--primary-light); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-bottom p { font-size: 0.78rem; color: var(--text-dim); }
.footer-langs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.footer-lang-link {
  font-size: 0.75rem;
  color: var(--text-dim);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  transition: var(--transition);
}
.footer-lang-link:hover { color: var(--primary-light); }

/* ===== DIVIDER ===== */
.section-divider {
  height: 1px;
  background: var(--border);
  max-width: 1400px;
  margin: 0 auto;
}

/* ===== TOOL PAGE SPECIFIC ===== */
.tool-page-wrap {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}
.tool-header {
  text-align: center;
  padding: 3rem 0 2rem;
}
.tool-header h1 { font-size: 2rem; font-weight: 800; margin-bottom: 0.5rem; }
.tool-header p { color: var(--text-muted); }
.tool-box {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.tool-textarea {
  width: 100%;
  min-height: 140px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
  padding: 1rem;
  resize: vertical;
  outline: none;
  transition: var(--transition);
  line-height: 1.6;
}
.tool-textarea:focus { border-color: var(--primary); }
.tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.5rem;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition);
  margin-top: 0.75rem;
  border: none;
  cursor: pointer;
}
.tool-btn:hover { opacity: 0.9; transform: translateY(-1px); }
.tool-btn-secondary {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
}
.tool-btn-secondary:hover { border-color: var(--primary); }
.tool-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }

/* ===== SYMBOL DETAIL PAGE ===== */
.sym-detail-hero {
  text-align: center;
  padding: 3rem 1.5rem 2rem;
  background: linear-gradient(180deg, rgba(124,58,237,0.08) 0%, transparent 100%);
}
.sym-detail-big {
  font-size: 6rem;
  line-height: 1;
  margin-bottom: 0.75rem;
  cursor: pointer;
  transition: var(--transition);
  display: inline-block;
}
.sym-detail-big:hover { transform: scale(1.1); }
.sym-detail-name { font-size: 1.8rem; font-weight: 800; margin-bottom: 0.5rem; }
.sym-detail-copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  background: var(--primary);
  color: #fff;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  margin-top: 1rem;
}
.sym-detail-copy-btn:hover { background: var(--primary-light); }
.sym-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}
.sym-info-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem;
}
.sym-info-label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-dim); margin-bottom: 0.4rem; }
.sym-info-value { font-size: 1rem; font-weight: 600; font-family: 'Courier New', monospace; }

/* ===== CATEGORY PAGE ===== */
.cat-header {
  padding: 3rem 1.5rem 1.5rem;
  max-width: 1400px;
  margin: 0 auto;
}
.cat-header h1 { font-size: 2rem; font-weight: 800; margin-bottom: 0.5rem; }
.cat-header p { color: var(--text-muted); max-width: 600px; }
.cat-symbol-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
  gap: 0.5rem;
}

/* ===== BREADCRUMB ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--text-dim);
  padding: 1rem 1.5rem 0;
  max-width: 1400px;
  margin: 0 auto;
}
.breadcrumb a { color: var(--text-dim); transition: var(--transition); }
.breadcrumb a:hover { color: var(--primary-light); }
.breadcrumb span { color: var(--text-muted); }

/* ===== EMOJI KEYBOARD ===== */
.emoji-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(48px, 1fr));
  gap: 0.3rem;
  max-height: 400px;
  overflow-y: auto;
  padding-right: 0.25rem;
}
.emoji-cat-tabs {
  display: flex;
  gap: 0.4rem;
  overflow-x: auto;
  padding-bottom: 0.75rem;
  margin-bottom: 0.75rem;
  scrollbar-width: none;
}
.emoji-cat-tabs::-webkit-scrollbar { display: none; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .topbar-inner { gap: 0.5rem; }
  .clipboard-bar { display: none; }
  .hero { padding: 2.5rem 1rem 1.5rem; }
  .pages-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 1.5rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .sym-detail-big { font-size: 4rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .trending-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
}
@media (max-width: 480px) {
  .section { padding: 2rem 1rem; }
  .pages-grid { grid-template-columns: repeat(2, 1fr); }
  .symbol-grid { grid-template-columns: repeat(auto-fill, minmax(44px, 1fr)); }
  .tools-grid { grid-template-columns: 1fr; }
  .lang-btn span:last-child { display: none; }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp 0.4s ease both; }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}