/* Legal-Tech Dashboard theme — pure CSS, no framework, no build step. */

:root {
  --bg: #020617;
  --bg-elevated: rgba(15, 23, 42, 0.55);
  --bg-inset: rgba(2, 6, 23, 0.55);
  --border: rgba(30, 41, 59, 0.8);
  --border-soft: rgba(51, 65, 85, 0.6);
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-soft: rgba(59, 130, 246, 0.15);
  --accent-ring: rgba(59, 130, 246, 0.35);
  --warning-soft: rgba(245, 158, 11, 0.12);
  --warning-border: rgba(245, 158, 11, 0.35);
  --warning-text: #fde68a;
  --radius-lg: 1rem;
  --radius-md: 0.75rem;
  --radius-sm: 0.5rem;
  --shadow-elevated: 0 20px 40px -20px rgba(0, 0, 0, 0.6);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.5;
}

.app-shell {
  min-height: 100vh;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  flex-direction: column;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--border-soft);
  background: rgba(2, 6, 23, 0.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text);
  font-size: 0.95rem;
}
.brand .icon { color: var(--accent); }

.app-nav {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.nav-link {
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 600;
  border: 1px solid transparent;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}
.nav-link:hover { color: var(--text); }
.nav-link--active {
  color: var(--text);
  background: var(--accent-soft);
  border-color: var(--accent-ring);
}

.app-main {
  flex: 1;
  padding-block: 2rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero h1 {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: clamp(1.35rem, 4vw, 1.9rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0 0 0.5rem;
}
.hero .subtitle {
  color: var(--text-muted);
  max-width: 62ch;
  margin: 0;
  font-size: 0.95rem;
}

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 1.5rem;
  box-shadow: var(--shadow-elevated);
}

.grid-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: start;
}
@media (min-width: 840px) {
  .grid-layout { grid-template-columns: 1.05fr 0.95fr; }
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.15rem;
}
.field label,
.field-label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  text-transform: uppercase;
}

input[type="number"],
input[type="text"],
select {
  background: var(--bg-inset);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius-md);
  padding: 0.75rem 0.9rem;
  font-size: 1rem;
  width: 100%;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 2.25rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%2394a3b8'%3E%3Cpath fill-rule='evenodd' d='M5.23 7.21a.75.75 0 011.06.02L10 11.19l3.71-3.96a.75.75 0 111.08 1.04l-4.25 4.5a.75.75 0 01-1.08 0l-4.25-4.5a.75.75 0 01.02-1.06z' clip-rule='evenodd'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.8rem center;
  background-size: 16px;
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-ring);
}

input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  background: transparent;
  margin: 0.3rem 0;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: 999px;
  background: rgba(51, 65, 85, 0.6);
}
input[type="range"]::-moz-range-track {
  height: 6px;
  border-radius: 999px;
  background: rgba(51, 65, 85, 0.6);
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid #0b1220;
  margin-top: -6px;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}
input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid #0b1220;
  cursor: pointer;
}
input[type="range"]:focus-visible::-webkit-slider-thumb,
input[type="range"]:focus-visible::-moz-range-thumb {
  box-shadow: 0 0 0 4px var(--accent-ring);
}

.percent-slider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.percent-slider__value {
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-variant-numeric: tabular-nums;
  min-width: 3.4rem;
  text-align: right;
  color: var(--text);
  font-weight: 700;
  font-size: 0.9rem;
}

.bar {
  width: 100%;
  height: 8px;
  display: block;
  margin-top: 0.35rem;
}
.bar__track { fill: rgba(51, 65, 85, 0.5); }
.bar__fill { fill: var(--accent); transition: width 0.25s ease; }

.segmented {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
}
@media (min-width: 420px) {
  .segmented { grid-template-columns: repeat(4, 1fr); }
}
.segmented__option {
  min-height: 48px;
  padding: 0.6rem 0.4rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-inset);
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}
.segmented__option:hover { border-color: var(--border-soft); color: var(--text); }
.segmented__option[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: #dbeafe;
  box-shadow: 0 0 0 1px var(--accent-ring);
}
.segmented__option:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-ring);
}

.btn-primary {
  margin-top: 0.5rem;
  width: 100%;
  min-height: 52px;
  padding: 0.9rem 1.2rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #f8fafc;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.1s ease;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:active { transform: translateY(1px); }
.btn-primary:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px var(--accent-ring);
}

.result-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-height: 260px;
}
.result-card h2 {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0;
}

.metric-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}
@media (min-width: 480px) {
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
}
.metric-card {
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  min-height: 96px;
}
.metric-card--accent {
  border-color: var(--accent-ring);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.14), rgba(2, 6, 23, 0.5));
  grid-column: 1 / -1;
}
.metric-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.metric-value {
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-variant-numeric: tabular-nums;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
}
.metric-value--lg { font-size: 1.55rem; color: #93c5fd; }

.ad-slot {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px dashed var(--border-soft);
  border-radius: var(--radius-md);
  background: rgba(2, 6, 23, 0.35);
  color: var(--text-dim);
  contain: layout size;
  width: 100%;
}
.ad-slot__label {
  position: absolute;
  top: 0.55rem;
  left: 0.8rem;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.7;
}

.disclaimer-block {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  background: var(--warning-soft);
  border: 1px solid var(--warning-border);
  border-radius: var(--radius-lg);
  padding: 1rem 1.1rem;
  color: var(--warning-text);
  font-size: 0.85rem;
  line-height: 1.6;
}
.disclaimer-block strong { color: #fef3c7; }
.disclaimer-block .icon { color: #f59e0b; flex-shrink: 0; margin-top: 0.15rem; }

.app-footer { padding-block: 1.5rem 2.5rem; }

.icon { flex-shrink: 0; }

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