/* Serbian ID Check. Shared tokens (colors, radius, shadow, fonts) come from /shared/tokens.css */

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
}

/* Components set display (grid, flex); keep the hidden attribute stronger */
[hidden] {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.tool {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
}

.idc {
  display: grid;
  gap: 1rem;
}

.idc-intro {
  display: grid;
  gap: 0.4rem;
}

.idc-title {
  margin: 0;
  font-family: var(--font-display);
  text-transform: var(--display-case);
  font-size: clamp(1.5rem, 6vw, 2rem);
  font-weight: 800;
  letter-spacing: var(--tracking-display);
}

.card {
  display: grid;
  gap: 1rem;
  min-width: 0;
  padding: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.card-title {
  margin: 0;
  font-family: var(--font-display);
  text-transform: var(--display-case);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: var(--tracking-display);
}

.card-hint {
  margin: 0;
  color: var(--text-muted);
}

.sub-title {
  margin: 0.25rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ── privacy note ─────────────────────────────────────────────────────────── */

.privacy {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin: 0;
  padding: 0.8rem 1rem;
  font-size: 0.9rem;
  background: var(--success-soft);
  border: 1px solid color-mix(in srgb, var(--success) 40%, transparent);
  border-radius: calc(var(--radius) - 4px);
}

.privacy svg {
  width: 1.25rem;
  height: 1.25rem;
  flex: none;
  margin-top: 0.05rem;
  fill: none;
  stroke: var(--success);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* On the green tint, plain --success is just under 4.5:1 in light mode; a darker green
   passes. Dark mode keeps the token. */
.privacy strong {
  color: light-dark(color-mix(in srgb, var(--success) 75%, black), var(--success));
}

/* ── controls ─────────────────────────────────────────────────────────────── */

.field {
  display: grid;
  gap: 0.4rem;
  min-width: 0;
}

.field-label {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.input {
  width: 100%;
  min-width: 0;
  padding: 0.6rem 0.75rem;
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) - 4px);
}

/* Numbers are easier to compare digit by digit in a monospace face */
.input--number {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}

.input:focus-visible,
.btn:focus-visible,
.segmented-btn:focus-visible,
.sources a:focus-visible {
  outline: 2px solid var(--accent-text);
  outline-offset: 2px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 2.5rem;
  padding: 0.55rem 1rem;
  font: 600 0.9rem/1.2 var(--button-font);
  text-transform: var(--button-case);
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) - 4px);
  cursor: pointer;
}

.btn:hover {
  border-color: var(--text-muted);
}

.btn--primary {
  color: var(--on-accent);
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: var(--shadow-glow);
}

.btn--primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
}

.segmented {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding: 0.2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) - 2px);
}

.segmented-btn {
  min-height: 2.5rem;
  padding: 0.4rem 0.6rem;
  font: 600 0.9rem/1.15 var(--button-font);
  text-transform: var(--button-case);
  color: var(--text-muted);
  background: transparent;
  border: 0;
  border-radius: calc(var(--radius) - 5px);
  cursor: pointer;
}

.segmented-btn:hover {
  color: var(--text);
}

.segmented-btn[aria-pressed="true"] {
  color: var(--on-accent);
  background: var(--accent);
}

/* ── result ───────────────────────────────────────────────────────────────── */

.result {
  display: grid;
  gap: 0.75rem;
  padding: 0.9rem 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-left-width: 4px;
  border-radius: calc(var(--radius) - 4px);
}

.result[data-state="valid"] {
  border-color: var(--success);
}

.result[data-state="invalid"] {
  border-color: var(--danger);
}

.verdict {
  margin: 0;
  color: var(--text-muted);
}

.result[data-state="valid"] .verdict,
.result[data-state="invalid"] .verdict {
  font-family: var(--font-display);
  text-transform: var(--display-case);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: var(--tracking-display);
}

.result[data-state="valid"] .verdict {
  color: var(--success);
}

.result[data-state="invalid"] .verdict {
  color: var(--danger);
}

.test-note {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.badge {
  display: inline-block;
  margin-right: 0.35rem;
  padding: 0.1rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--warning);
  background: var(--warning-soft);
  border: 1px solid var(--warning);
  border-radius: var(--radius-pill);
}

.checks {
  display: grid;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.checks:empty,
.facts:empty {
  display: none;
}

.check {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
}

.check-icon {
  display: grid;
  place-items: center;
  width: 1.35rem;
  height: 1.35rem;
  flex: none;
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: 50%;
}

.check--ok .check-icon {
  color: var(--success);
  background: var(--success-soft);
}

.check--fail .check-icon {
  color: var(--danger);
  background: var(--danger-soft);
}

.check-body {
  display: grid;
  gap: 0.15rem;
  min-width: 0;
}

.check-label {
  font-weight: 600;
}

.check-reason {
  font-size: 0.9rem;
  color: var(--danger);
  overflow-wrap: anywhere;
}

.facts {
  display: grid;
  gap: 0.35rem;
  margin: 0;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

.fact {
  display: grid;
  grid-template-columns: minmax(7rem, 11rem) minmax(0, 1fr);
  gap: 0.25rem 0.75rem;
}

.fact dt {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding-top: 0.15rem;
}

.fact dd {
  margin: 0;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

/* ── about ────────────────────────────────────────────────────────────────── */

.about-text {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.55;
}

.sources {
  display: grid;
  gap: 0.5rem;
  margin: 0;
  padding: 0 0 0 1.1rem;
  font-size: 0.875rem;
}

.sources a {
  color: var(--accent-text);
  overflow-wrap: anywhere;
}

.source-date {
  color: var(--text-muted);
  white-space: nowrap;
}

@media (max-width: 480px) {
  .fact {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 400px) {
  .tool {
    padding-inline: 0.75rem;
  }

  .card {
    padding: 1rem;
  }

  .button-row .btn {
    flex: 1 1 auto;
  }
}