:root {
  --bg0: #070b12;
  --bg1: #0d1522;
  --bg2: #121c2c;
  --panel: #101a28;
  --panel-edge: rgba(125, 211, 252, 0.14);
  --text: #e8eef7;
  --muted: #8b9bb0;
  --accent: #38bdf8;
  --accent-2: #0ea5e9;
  --ok: #34d399;
  --warn: #fbbf24;
  --err: #f87171;
  --btn: #16324a;
  --btn-hover: #1d415e;
  --radius: 14px;
  --font-ui: "Trebuchet MS", "Candara", "Segoe UI", sans-serif;
  --font-mono: "Cascadia Mono", "Consolas", "Lucida Console", monospace;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
}

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

html,
body {
  margin: 0;
  min-height: 100%;
  color: var(--text);
  font-family: var(--font-ui);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(14, 165, 233, 0.18), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(52, 211, 153, 0.08), transparent 50%),
    linear-gradient(165deg, var(--bg0), var(--bg1) 45%, var(--bg2));
  background-attachment: fixed;
}

body {
  padding: 1.25rem clamp(0.85rem, 2vw, 1.75rem) 2.5rem;
}

.wrap {
  max-width: 1280px;
  margin: 0 auto;
}

.brand {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  margin-bottom: 1rem;
}

.brand h1 {
  margin: 0;
  font-size: clamp(1.55rem, 3.2vw, 2.15rem);
  letter-spacing: -0.03em;
  font-weight: 800;
  background: linear-gradient(90deg, #e0f2fe, var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: brandIn 0.55s ease both;
}

.brand p {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  max-width: 36rem;
  line-height: 1.45;
}

.privacy {
  margin: 0 0 1.15rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--panel-edge);
  border-radius: var(--radius);
  background: rgba(16, 26, 40, 0.72);
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.5;
  animation: fadeUp 0.45s ease 0.08s both;
}

.privacy strong {
  color: var(--ok);
  font-weight: 700;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  align-items: stretch;
}

.panel {
  display: flex;
  flex-direction: column;
  min-height: min(72vh, 780px);
  background: linear-gradient(180deg, rgba(18, 28, 44, 0.95), rgba(10, 16, 26, 0.92));
  border: 1px solid var(--panel-edge);
  border-radius: calc(var(--radius) + 2px);
  box-shadow: var(--shadow);
  overflow: hidden;
  animation: fadeUp 0.5s ease both;
}

.panel:nth-child(2) {
  animation-delay: 0.06s;
}

.panel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
  padding: 0.9rem 1rem 0.75rem;
  border-bottom: 1px solid rgba(125, 211, 252, 0.1);
}

.panel-head h2 {
  margin: 0;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

button {
  appearance: none;
  border: 1px solid rgba(125, 211, 252, 0.22);
  background: var(--btn);
  color: var(--text);
  font: inherit;
  font-size: 0.86rem;
  font-weight: 700;
  padding: 0.48rem 0.85rem;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.18s ease, transform 0.15s ease, border-color 0.18s ease;
}

button:hover {
  background: var(--btn-hover);
  border-color: rgba(56, 189, 248, 0.45);
}

button:active {
  transform: translateY(1px);
}

button.primary {
  background: linear-gradient(135deg, var(--accent-2), #0369a1);
  border-color: transparent;
}

button.primary:hover {
  filter: brightness(1.08);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.15rem;
  padding: 0.65rem 1rem 0;
}

.options label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--muted);
  font-size: 0.86rem;
  cursor: pointer;
  user-select: none;
}

.options input {
  accent-color: var(--accent);
  width: 1rem;
  height: 1rem;
}

textarea {
  flex: 1;
  width: 100%;
  margin: 0.75rem 1rem 1rem;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(125, 211, 252, 0.12);
  border-radius: 12px;
  resize: none;
  background: rgba(7, 11, 18, 0.72);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.5;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

textarea:focus {
  border-color: rgba(56, 189, 248, 0.55);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

#output {
  color: #dbeafe;
}

.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0 1rem;
}

.stat {
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  border: 1px solid rgba(125, 211, 252, 0.14);
  background: rgba(8, 14, 24, 0.65);
  color: var(--muted);
}

.stat b {
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.stat.ok b { color: var(--ok); }
.stat.cancel b { color: var(--err); }

.status-bar {
  min-height: 1.35rem;
  margin: 0.55rem 1rem 0.95rem;
  font-size: 0.84rem;
  color: var(--muted);
}

.status-bar.error { color: var(--err); }
.status-bar.warn { color: var(--warn); }
.status-bar.ok { color: var(--ok); }

.footer-note {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.78rem;
  text-align: center;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes brandIn {
  from { opacity: 0; letter-spacing: 0.08em; filter: blur(4px); }
  to { opacity: 1; letter-spacing: -0.03em; filter: blur(0); }
}

@media (max-width: 860px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .panel {
    min-height: 52vh;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}