:root {
  color-scheme: dark;
  --bg: #0b1021;
  --panel: #10162f;
  --panel-strong: #0f172a;
  --panel-soft: rgba(255, 255, 255, 0.04);
  --text: #e8ecff;
  --muted: #9fb4ff;
  --accent: #6dd3ff;
  --accent-strong: #7ed3ff;
  --border: #1e2a4a;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: radial-gradient(circle at 10% 20%, rgba(109, 211, 255, 0.12), transparent 25%),
    radial-gradient(circle at 90% 30%, rgba(131, 146, 255, 0.12), transparent 20%),
    linear-gradient(145deg, #0b1021, #0a122b 40%, #050a1a);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
}

main,
.app-shell,
.page,
.tool-shell {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

.app-header,
header.app-header {
  text-align: center;
  margin-bottom: 20px;
}

h1,
h2,
h3,
h4,
h5 {
  color: var(--text);
  margin-top: 0;
}

p {
  margin: 0 0 0.6rem;
}

a {
  color: var(--accent-strong);
}

a:hover {
  color: #a5dfff;
}

.card,
.card-gradient,
.toast,
.notice,
.control-card,
.dropzone,
.hero-card,
.card-ghost,
.results-list article {
  background: linear-gradient(145deg, #111827, #0b1224);
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
}

.card + .card {
  margin-top: 1rem;
}

.card-ghost {
  background: var(--panel-soft);
}

.card-gradient {
  background: linear-gradient(145deg, #10162f, #0f172a 60%);
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.75rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  font-weight: 700;
  color: var(--text);
}

.page-title {
  font-size: clamp(2rem, 4vw, 2.6rem);
  font-weight: 700;
}

.hero {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  align-items: start;
  margin-bottom: 24px;
}

.hero-card {
  background: radial-gradient(circle at 20% 20%, rgba(109, 211, 255, 0.1), transparent 40%), var(--panel);
}

.pill-list {
  list-style: none;
  padding: 0;
  margin: 0.75rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill,
.pill-list li {
  display: inline-flex;
  gap: 0.35rem;
  align-items: center;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-size: 0.95rem;
}

.muted,
.hint {
  color: var(--muted);
  font-size: 0.95rem;
}

.eyebrow {
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
  color: #9ca3af;
  margin: 0 0 0.35rem;
}

.lede {
  color: #d5dbff;
  margin-bottom: 0.75rem;
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

input,
textarea,
select,
button,
.btn,
.form-control,
input[type='file'] {
  font-family: inherit;
}

input[type='text'],
input[type='number'],
input[type='file'],
textarea,
select,
.form-control {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border-radius: 10px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: rgba(15, 23, 42, 0.75);
  color: var(--text);
}

input[type='file'] {
  padding: 0.75rem;
  border-style: dashed;
  cursor: pointer;
}

input:focus,
textarea:focus,
select:focus {
  outline: 2px solid rgba(109, 211, 255, 0.5);
  border-color: rgba(109, 211, 255, 0.6);
}

button,
.btn,
button[type='submit'] {
  appearance: none;
  border: none;
  border-radius: 10px;
  background: linear-gradient(135deg, #22d3ee, #6366f1);
  color: #0b1120;
  font-weight: 700;
  padding: 0.8rem 1.2rem;
  cursor: pointer;
  transition: transform 0.12s ease, filter 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 16px 35px rgba(99, 102, 241, 0.28);
}

.btn-primary,
.btn-modern {
  color: #0b1120;
}

button:hover,
.btn:hover {
  transform: translateY(-1px);
  filter: brightness(1.05);
}

button:active,
.btn:active {
  transform: translateY(0);
}

button.ghost,
.btn.ghost,
.btn-outline,
.btn-outline-light {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: var(--text);
  box-shadow: none;
}

.controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}

.control-card {
  padding: 1rem;
  background: var(--panel);
}

.form-grid,
.grid,
.result-grid,
.results-list,
.controls-grid {
  display: grid;
  gap: 14px;
}

.form-grid .grid,
.grid.grid-columns,
.result-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.field.inline {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.checkbox {
  display: flex;
  gap: 8px;
  align-items: center;
  cursor: pointer;
}

.actions,
.d-flex {
  display: flex;
  align-items: center;
}

.actions {
  gap: 10px;
  flex-wrap: wrap;
}

.d-flex.gap-3 {
  gap: 1rem;
}

.result-header,
.card-header,
.d-flex.justify-content-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
}

pre,
.code-block {
  background: rgba(15, 23, 42, 0.6);
  border-radius: 12px;
  padding: 1rem;
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  border: 1px solid rgba(148, 163, 184, 0.2);
  color: #e5e7eb;
  overflow-x: auto;
}

.result-grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.results-list {
  gap: 10px;
  padding: 0;
  margin: 0;
}

.results-list article,
.toast,
.notice {
  display: block;
}

.notice {
  border-color: rgba(124, 58, 237, 0.25);
  background: linear-gradient(145deg, rgba(124, 58, 237, 0.15), rgba(14, 165, 233, 0.08));
}

.toast {
  background: rgba(34, 197, 94, 0.12);
  border-color: rgba(34, 197, 94, 0.35);
}

.file-list {
  border: 1px dashed rgba(148, 163, 184, 0.35);
  border-radius: 12px;
  padding: 1rem;
  background: rgba(15, 23, 42, 0.4);
}

.dropzone,
.drop-zone {
  text-align: center;
  border: 1px dashed rgba(148, 163, 184, 0.35);
  border-radius: 12px;
  padding: 1rem;
  background: rgba(15, 23, 42, 0.4);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.dropzone.dragover,
.drop-zone.dragover {
  background: rgba(59, 130, 246, 0.12);
  border-color: #60a5fa;
}

.badge {
  background: #10b981;
  color: #041014;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-weight: 700;
  display: inline-block;
  margin-bottom: 0.5rem;
}

.error {
  background: rgba(239, 68, 68, 0.15);
  color: #fecdd3;
  border: 1px solid rgba(239, 68, 68, 0.3);
  padding: 0.75rem;
  border-radius: 10px;
}

.success {
  color: #bbf7d0;
}

#status[data-variant='error'],
.status[data-variant='error'] {
  color: #fecdd3;
}

#status[data-variant='success'],
.status[data-variant='success'] {
  color: #bbf7d0;
}

.controls-grid .form-text,
.form-text,
.small,
.small-text {
  color: #94a3b8;
}

.table,
table {
  width: 100%;
  border-collapse: collapse;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(148, 163, 184, 0.25);
  border-radius: 12px;
  overflow: hidden;
}

table th,
table td {
  padding: 0.65rem 0.8rem;
  border-bottom: 1px solid rgba(148, 163, 184, 0.15);
}

@media (max-width: 960px) {
  main,
  .app-shell,
  .page,
  .tool-shell {
    padding: 24px 16px 48px;
  }

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

  .actions,
  .field.inline,
  .result-header,
  .card-header {
    flex-direction: column;
    align-items: flex-start;
  }

  button,
  .btn,
  button.ghost,
  .btn.ghost {
    width: 100%;
  }
}