:root {
  --bg-0: #08070f;
  --bg-1: #0f0d1f;
  --panel: rgba(22, 19, 42, 0.72);
  --border: rgba(120, 90, 220, 0.28);
  --cyan: #22e6d3;
  --magenta: #ff4fd8;
  --lime: #b6ff3d;
  --violet: #8b5cff;
  --text: #e8e6f5;
  --muted: #8f8ab5;
  --mono: 'JetBrains Mono', monospace;
  --display: 'Bricolage Grotesque', sans-serif;
}

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

body {
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(139,92,255,0.18), transparent 60%),
    radial-gradient(900px 500px at 0% 110%, rgba(34,230,211,0.12), transparent 55%),
    linear-gradient(160deg, var(--bg-0), var(--bg-1));
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--display);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.app-root { max-width: 1100px; margin: 0 auto; padding: 20px 16px 60px; }

/* ===== Header ===== */
.header {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  padding: 30px 26px;
  background: linear-gradient(135deg, rgba(30,22,58,0.9), rgba(12,10,28,0.9));
  box-shadow: 0 0 60px rgba(139,92,255,0.15), inset 0 0 40px rgba(34,230,211,0.05);
  animation: rise 0.7s ease both;
}
.neural-wrap { position: absolute; inset: 0; opacity: 0.35; pointer-events: none; }
.neural-svg { width: 100%; height: 100%; }
.neu-node { fill: var(--cyan); animation: pulseNode 2.4s ease-in-out infinite; }
.neu-line { stroke: var(--violet); stroke-width: 0.6; opacity: 0.4; animation: pulseLine 3s ease-in-out infinite; }
@keyframes pulseNode { 0%,100% { opacity: 0.3; r: 3; } 50% { opacity: 1; r: 5; filter: drop-shadow(0 0 4px var(--cyan)); } }
@keyframes pulseLine { 0%,100% { opacity: 0.15; } 50% { opacity: 0.6; } }

.header-content { position: relative; z-index: 2; }
.logo {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(2rem, 6vw, 3.4rem);
  letter-spacing: -0.03em;
  background: linear-gradient(100deg, #fff, var(--cyan) 55%, var(--magenta));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  line-height: 1;
}
.logo-em { -webkit-text-fill-color: initial; }
.tagline { color: var(--muted); margin-top: 10px; font-size: 0.95rem; font-weight: 300; max-width: 520px; }
.tagline em { color: var(--lime); font-style: normal; }

.header-stats { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; align-items: center; }
.stat-chip {
  font-family: var(--mono); font-size: 0.75rem; color: var(--lime);
  border: 1px solid rgba(182,255,61,0.3); padding: 5px 11px; border-radius: 999px;
  background: rgba(182,255,61,0.06);
}
.gear-btn {
  font-family: var(--mono); font-size: 0.75rem; color: var(--muted);
  background: rgba(255,255,255,0.04); border: 1px solid var(--border);
  padding: 5px 12px; border-radius: 999px; cursor: pointer; transition: all 0.2s;
}
.gear-btn:hover { color: var(--cyan); border-color: var(--cyan); }

/* ===== Drawer ===== */
.drawer {
  margin-top: 14px; padding: 20px; border-radius: 16px;
  background: var(--panel); border: 1px solid var(--border);
  backdrop-filter: blur(10px); animation: rise 0.35s ease both;
}
.drawer-title { font-family: var(--mono); color: var(--cyan); font-size: 0.85rem; margin-bottom: 12px; }
.drawer-head-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.clear-btn {
  font-family: var(--mono); font-size: 0.72rem; color: var(--magenta);
  background: rgba(255,79,216,0.08); border: 1px solid rgba(255,79,216,0.3);
  padding: 4px 10px; border-radius: 8px; cursor: pointer;
}
.clear-btn:hover { background: rgba(255,79,216,0.2); }
.hint { color: var(--muted); font-size: 0.8rem; margin-top: 10px; font-weight: 300; }
.hint code { font-family: var(--mono); color: var(--lime); background: rgba(182,255,61,0.08); padding: 1px 6px; border-radius: 4px; }

.hist-list { display: flex; flex-direction: column; gap: 8px; max-height: 340px; overflow-y: auto; }
.hist-item {
  text-align: left; display: flex; flex-direction: column; gap: 6px;
  background: rgba(255,255,255,0.03); border: 1px solid var(--border);
  border-radius: 10px; padding: 11px 13px; cursor: pointer; transition: all 0.18s;
}
.hist-item:hover { border-color: var(--cyan); background: rgba(34,230,211,0.06); transform: translateX(3px); }
.hist-title { color: var(--text); font-size: 0.9rem; font-weight: 600; }
.hist-meta { display: flex; gap: 8px; align-items: center; }
.hist-time { font-family: var(--mono); font-size: 0.68rem; color: var(--muted); }

/* ===== Main grid ===== */
.main-grid {
  margin-top: 18px; display: grid; grid-template-columns: 1fr 1.35fr; gap: 18px;
}
@media (max-width: 820px) { .main-grid { grid-template-columns: 1fr; } }

.panel {
  position: relative; background: var(--panel); border: 1px solid var(--border);
  border-radius: 18px; padding: 22px; backdrop-filter: blur(12px);
  box-shadow: 0 8px 40px rgba(0,0,0,0.4);
  animation: rise 0.6s ease both;
}
.input-panel { animation-delay: 0.1s; }
.output-panel { animation-delay: 0.2s; }
.panel-badge { font-family: var(--mono); font-size: 0.72rem; color: var(--violet); margin-bottom: 16px; letter-spacing: 0.05em; }

.field-label { display: block; font-family: var(--mono); font-size: 0.78rem; color: var(--muted); margin: 14px 0 6px; }
.field-label:first-of-type { margin-top: 0; }
.input-el {
  width: 100%; font-family: var(--mono); font-size: 0.88rem; color: var(--text);
  background: rgba(8,7,15,0.6); border: 1px solid var(--border);
  border-radius: 10px; padding: 11px 13px; transition: all 0.2s; outline: none;
}
.input-el:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(34,230,211,0.15); }
select.input-el { cursor: pointer; }
.title-input::placeholder { color: #55507a; }

.predict-btn {
  width: 100%; margin-top: 22px; font-family: var(--display); font-weight: 800;
  font-size: 1.05rem; color: #08070f; cursor: pointer; border: none;
  border-radius: 12px; padding: 14px;
  background: linear-gradient(100deg, var(--cyan), var(--lime));
  box-shadow: 0 0 30px rgba(34,230,211,0.35); transition: all 0.2s;
}
.predict-btn:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 6px 40px rgba(34,230,211,0.5); }
.predict-btn:active:not(:disabled) { transform: translateY(0) scale(0.98); }
.predict-btn.loading { background: linear-gradient(100deg, #3a3560, #2a2648); color: var(--muted); cursor: wait; box-shadow: none; }
.btn-loading { display: inline-flex; align-items: center; gap: 8px; }
.spinner {
  width: 15px; height: 15px; border: 2px solid rgba(255,255,255,0.2);
  border-top-color: var(--cyan); border-radius: 50%; display: inline-block;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.err-msg {
  margin-top: 14px; font-size: 0.82rem; color: #ffb3b3;
  background: rgba(255,79,79,0.1); border: 1px solid rgba(255,79,79,0.35);
  padding: 10px 12px; border-radius: 10px; animation: shake 0.4s;
}
@keyframes shake { 0%,100%{transform:translateX(0);} 25%{transform:translateX(-5px);} 75%{transform:translateX(5px);} }
.kbd-hint { margin-top: 16px; }
kbd { font-family: var(--mono); background: rgba(255,255,255,0.08); border: 1px solid var(--border); border-radius: 5px; padding: 1px 7px; font-size: 0.72rem; }

/* ===== Output ===== */
.output-inner { animation: rise 0.4s ease both; }
.code-header { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
.lang-badge {
  font-family: var(--mono); font-size: 0.72rem; font-weight: 700;
  color: var(--bg-0); background: var(--magenta); padding: 4px 10px; border-radius: 6px;
  letter-spacing: 0.05em;
}
.lang-badge.sm { background: rgba(255,79,216,0.15); color: var(--magenta); font-size: 0.65rem; padding: 2px 7px; }
.code-actions { display: flex; gap: 8px; }
.icon-btn {
  font-family: var(--mono); font-size: 0.74rem; color: var(--muted); cursor: pointer;
  background: rgba(255,255,255,0.05); border: 1px solid var(--border);
  padding: 5px 11px; border-radius: 8px; transition: all 0.18s;
}
.icon-btn:hover { color: var(--cyan); border-color: var(--cyan); }

.code-box {
  background: #060510; border: 1px solid var(--border); border-radius: 12px;
  padding: 16px; overflow-x: auto; max-height: 460px; overflow-y: auto;
}
.code-pre {
  font-family: var(--mono); font-size: 0.82rem; line-height: 1.6;
  color: #d5d1ee; white-space: pre; tab-size: 2;
}
.tok-kw { color: var(--magenta); font-weight: 700; }
.tok-str { color: var(--lime); }
.tok-com { color: #5a5580; font-style: italic; }
.tok-num { color: var(--cyan); }

.conf-row { display: flex; align-items: center; gap: 12px; margin-top: 16px; cursor: help; flex-wrap: wrap; }
.conf-label { font-family: var(--mono); font-size: 0.72rem; color: var(--muted); }
.conf-bar { flex: 1; min-width: 100px; height: 8px; background: rgba(255,255,255,0.07); border-radius: 999px; overflow: hidden; }
.conf-fill { height: 100%; border-radius: 999px; background: linear-gradient(90deg, var(--cyan), var(--lime)); transition: width 0.9s cubic-bezier(0.2,0.9,0.3,1); box-shadow: 0 0 12px rgba(182,255,61,0.5); }
.conf-val { font-family: var(--mono); font-size: 0.82rem; color: var(--lime); font-weight: 700; }

.loading-state { display: flex; flex-direction: column; align-items: center; gap: 22px; padding: 50px 10px; }
.loading-orb {
  width: 60px; height: 60px; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--cyan), var(--violet) 70%);
  box-shadow: 0 0 40px var(--cyan); animation: orbPulse 1.2s ease-in-out infinite;
}
@keyframes orbPulse { 0%,100% { transform: scale(0.85); opacity: 0.7; } 50% { transform: scale(1.1); opacity: 1; } }
.loading-text { font-family: var(--mono); font-size: 0.82rem; color: var(--cyan); text-align: center; min-height: 1.4em; }

.empty-state { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 50px 10px; text-align: center; color: var(--muted); }
.empty-icon { font-size: 3rem; color: var(--violet); opacity: 0.5; animation: floaty 3s ease-in-out infinite; }
@keyframes floaty { 0%,100% { transform: translateY(0) rotate(0); } 50% { transform: translateY(-8px) rotate(45deg); } }
.empty-sub { font-size: 0.78rem; opacity: 0.7; font-weight: 300; }

/* ===== Footer ===== */
.footer {
  margin-top: 40px; display: flex; justify-content: space-between; align-items: center;
  gap: 12px; flex-wrap: wrap; font-family: var(--mono); font-size: 0.72rem; color: var(--muted);
  padding-top: 20px; border-top: 1px solid var(--border);
}
.footer a { color: var(--cyan); text-decoration: none; }
.footer a:hover { text-decoration: underline; }

/* ===== Toast ===== */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  font-family: var(--mono); font-size: 0.82rem; color: var(--bg-0);
  background: var(--cyan); padding: 11px 20px; border-radius: 12px;
  box-shadow: 0 8px 30px rgba(34,230,211,0.5); z-index: 100;
  animation: toastIn 0.3s ease both;
}
@keyframes toastIn { from { opacity: 0; transform: translateX(-50%) translateY(15px); } to { opacity: 1; transform: translateX(-50%) translateY(0); } }
@keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }