:root {
  color-scheme: light dark;

  --bg: #fbf6ee;
  --surface: #ffffff;
  --ink: #1f1b16;
  --muted: #6b6258;
  --border: #e4d9c8;
  --accent: #c2410c;
  --accent-ink: #ffffff;
  --accent-soft: #fde8d8;
  --danger: #b42318;

  /* The result panel imitates a microwave's amber display, so it is dark in both themes. */
  --display-bg: #1b1208;
  --display-ink: #ffb000;
  --display-dim: #7a5c1f;
  --display-text: #e9c981;

  --radius: 16px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

/* Dark palette: used when the system is dark and the user hasn't forced light, or when they forced dark. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #17130f;
    --surface: #221c16;
    --ink: #f6efe4;
    --muted: #b3a692;
    --border: #3a3128;
    --accent: #ff8a4c;
    --accent-ink: #2a1405;
    --accent-soft: #3b2616;
    --danger: #ff8f85;
    --display-bg: #0e0a05;
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #17130f;
  --surface: #221c16;
  --ink: #f6efe4;
  --muted: #b3a692;
  --border: #3a3128;
  --accent: #ff8a4c;
  --accent-ink: #2a1405;
  --accent-soft: #3b2616;
  --danger: #ff8f85;
  --display-bg: #0e0a05;
}

:root[data-theme="light"] {
  color-scheme: light;
}

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

html {
  -webkit-text-size-adjust: 100%;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 1.0625rem/1.4 var(--font);
}

.app {
  max-width: 34rem;
  margin: 0 auto;
  padding: max(1rem, env(safe-area-inset-top)) max(1rem, env(safe-area-inset-right))
    max(2rem, env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left));
  display: grid;
  gap: 1rem;
}

#pkg-form {
  display: grid;
  gap: 1rem;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

/* ---------- Header ---------- */

h1 {
  margin: 0.5rem 0 0;
  font-size: 1.75rem;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.title-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1rem;
}

.theme-toggle {
  display: inline-flex;
  margin-top: 0.5rem;
  border: 1.5px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
}

.theme-toggle button {
  min-height: 2.75rem;
  min-width: 3.4rem;
  padding: 0 0.7rem;
  font: 600 0.875rem var(--font);
  color: var(--ink);
  background: transparent;
  border: 0;
}

.theme-toggle button[aria-pressed="true"] {
  color: var(--accent-ink);
  background: var(--accent);
}

.subtitle {
  margin: 0.25rem 0 0;
  color: var(--muted);
}

/* ---------- Cards and form controls ---------- */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1rem 1.1rem;
}

h2 {
  margin: 0 0 0.75rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.section-title {
  margin-bottom: 0.5rem;
}

label,
legend {
  display: block;
  margin: 0.9rem 0 0.35rem;
  padding: 0;
  font-size: 0.9375rem;
  font-weight: 600;
}

h2 + label {
  margin-top: 0;
}

fieldset {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

input {
  width: 100%;
  min-height: 3rem;
  padding: 0.5rem 0.85rem;
  /* 16px or larger stops iOS Safari from zooming in when a field is focused. */
  font: inherit;
  color: var(--ink);
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: 12px;
}

input:focus {
  border-color: var(--accent);
}

input::placeholder {
  color: var(--muted);
  opacity: 0.7;
}

.field {
  position: relative;
}

.field input {
  padding-right: 3.2rem;
  font-variant-numeric: tabular-nums;
}

.unit {
  position: absolute;
  top: 50%;
  right: 0.9rem;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
}

.duration {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.6rem;
}

.chip {
  min-width: 3.6rem;
  min-height: 2.75rem;
  padding: 0 0.8rem;
  font: inherit;
  font-size: 0.9375rem;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  background: transparent;
  border: 1.5px solid var(--border);
  border-radius: 999px;
}

.chip[aria-pressed="true"] {
  color: var(--accent-ink);
  background: var(--accent);
  border-color: var(--accent);
}

.hint {
  margin: 0.75rem 0 0;
  font-size: 0.9375rem;
  color: var(--muted);
}

.warning {
  margin: 0;
  padding: 0.6rem 0.8rem;
  font-size: 0.9375rem;
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  border-radius: 12px;
}

/* ---------- Result display ---------- */

.display {
  padding: 1.1rem 1rem 1.2rem;
  text-align: center;
  color: var(--display-ink);
  background: var(--display-bg);
  border-radius: 20px;
  box-shadow:
    inset 0 0 0 2px rgba(255, 176, 0, 0.14),
    0 6px 18px rgba(0, 0, 0, 0.12);
}

.display-label {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--display-text);
  opacity: 0.8;
}

.display-time {
  margin: 0.15rem 0;
  font: 700 clamp(3.5rem, 22vw, 5rem) / 1 var(--mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  text-shadow: 0 0 22px rgba(255, 176, 0, 0.4);
}

.display[data-state="idle"] .display-time {
  color: var(--display-dim);
  text-shadow: none;
}

.display-detail {
  min-height: 1.4em;
  margin: 0.4rem 0 0;
  font-size: 0.9375rem;
  color: var(--display-text);
}

/* ---------- Buttons ---------- */

.actions {
  display: flex;
  gap: 0.75rem;
}

button {
  cursor: pointer;
}

.primary {
  flex: 1;
  min-height: 3.25rem;
  font: 700 1.0625rem var(--font);
  color: var(--accent-ink);
  background: var(--accent);
  border: 0;
  border-radius: 14px;
}

.primary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.secondary {
  min-height: 3.25rem;
  padding: 0 1.25rem;
  font: 600 1rem var(--font);
  color: var(--ink);
  background: transparent;
  border: 1.5px solid var(--border);
  border-radius: 14px;
}

.status {
  min-height: 1.4em;
  margin: -0.25rem 0 0;
  color: var(--muted);
}

/* ---------- Saved packages ---------- */

.saved-list {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.saved-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.15rem 1rem;
  align-items: center;
  padding: 0.9rem 1rem 0.4rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.saved-name {
  margin: 0;
  font-weight: 650;
  overflow-wrap: anywhere;
}

.saved-meta {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--muted);
}

.saved-time {
  grid-column: 2;
  grid-row: 1 / span 2;
  margin: 0;
  padding: 0.45rem 0.7rem;
  font: 700 1.75rem / 1 var(--mono);
  font-variant-numeric: tabular-nums;
  color: var(--display-ink);
  background: var(--display-bg);
  border-radius: 10px;
}

.saved-actions {
  grid-column: 1 / -1;
  display: flex;
  gap: 0.25rem;
  margin: 0.2rem -0.6rem 0;
}

.link {
  min-height: 2.75rem;
  padding: 0 0.75rem;
  font: 600 0.9375rem var(--font);
  color: var(--accent);
  background: none;
  border: 0;
}

.link.danger {
  color: var(--danger);
}

.foot {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--muted);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}