/* ==========================================================================
   Tre Zero Uno — components
   ========================================================================== */

/* --------------------------------------------------------------- buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-6);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 400;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  cursor: pointer;
  transition:
    background var(--duration-base) var(--ease-out),
    color var(--duration-base) var(--ease-out),
    border-color var(--duration-base) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

.btn--primary {
  background: var(--oro);
  border-color: var(--oro);
  color: var(--nero);
}
.btn--primary:hover {
  background: var(--oro-bright);
  border-color: var(--oro-bright);
  color: var(--nero);
}

.btn--ghost {
  background: transparent;
  border-color: color-mix(in srgb, var(--crema) 24%, transparent);
  color: var(--crema);
}
.btn--ghost:hover {
  border-color: var(--oro);
  color: var(--oro);
}

.btn--block { width: 100%; }
.btn--lg { padding: var(--space-5) var(--space-7); font-size: var(--text-base); }

/* ----------------------------------------------------------------- cards */
.card {
  background: var(--nero-raised);
  border: var(--border-hairline);
  border-radius: var(--radius-md);
  padding: var(--space-6);
}

.card--raised { box-shadow: var(--shadow-soft); }

/* ---------------------------------------------------------- scarcity meter */
/* The counter that carries the whole business model. */
.scarcity {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-6);
  background: var(--nero-raised);
  border: var(--border-oro);
  border-radius: var(--radius-md);
}

.scarcity__label {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--crema-faint);
}

.scarcity__count {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  line-height: 1;
  color: var(--crema);
}

.scarcity__count strong {
  font-size: var(--text-4xl);
  font-weight: 300;
  color: var(--oro);
  font-variant-numeric: tabular-nums;
}

.scarcity__bar {
  position: relative;
  height: 2px;
  background: var(--nero-line);
  overflow: hidden;
}

.scarcity__fill {
  position: absolute;
  inset-block: 0;
  left: 0;
  background: var(--oro);
  transition: width var(--duration-slow) var(--ease-out);
}

/* Stock drains → the meter warms toward red. */
.scarcity--low .scarcity__fill { background: var(--rosso); }
.scarcity--low .scarcity__count strong { color: var(--rosso); }

.scarcity--sold-out {
  border-color: color-mix(in srgb, var(--rosso) 45%, transparent);
}

/* ------------------------------------------------------------ menu items */
.menu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-5);
}

.menu-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-5) 0;
  border-bottom: var(--border-hairline);
}

.menu-item__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
}

.menu-item__name {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  letter-spacing: var(--tracking-display);
  color: var(--crema);
}

.menu-item__price {
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wide);
  color: var(--oro);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.menu-item__tagline {
  font-size: var(--text-sm);
  font-style: italic;
  color: var(--oro);
}

.menu-item__description {
  font-size: var(--text-sm);
  color: var(--crema-muted);
  line-height: var(--leading-snug);
}

.menu-item__image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-top: var(--space-2);
}

/* ----------------------------------------------------------------- forms */
.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.field__label {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--crema-muted);
}

.field__hint {
  font-size: var(--text-xs);
  color: var(--crema-faint);
}

.field__error {
  font-size: var(--text-xs);
  color: var(--rosso);
}

input[type="text"],
input[type="tel"],
input[type="email"],
input[type="number"],
input[type="password"],
input[type="date"],
input[type="time"],
select,
textarea {
  width: 100%;
  padding: var(--space-4);
  background: var(--nero-sunken);
  border: var(--border-hairline);
  border-radius: var(--radius-sm);
  color: var(--crema);
  font-family: var(--font-body);
  font-size: var(--text-base);
  transition: border-color var(--duration-fast) var(--ease-out);
}

/* Native date/time pickers paint their own icon in a fixed dark tone —
   invisible on our dark inputs without this. */
input[type="date"]::-webkit-calendar-picker-indicator,
input[type="time"]::-webkit-calendar-picker-indicator {
  filter: invert(1);
  cursor: pointer;
}

input::placeholder,
textarea::placeholder { color: var(--crema-faint); }

input:focus,
select:focus,
textarea:focus {
  border-color: var(--oro);
  outline: none;
}

textarea { resize: vertical; }

select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--oro) 50%),
    linear-gradient(135deg, var(--oro) 50%, transparent 50%);
  background-position: calc(100% - 20px) 50%, calc(100% - 14px) 50%;
  background-size: 6px 6px;
  background-repeat: no-repeat;
  padding-right: var(--space-8);
}

/* --------------------------------------------------------- slot selection */
.slot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--space-3);
}

.slot {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-4);
  background: var(--nero-sunken);
  border: var(--border-hairline);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease-out);
}

.slot:hover { border-color: color-mix(in srgb, var(--oro) 50%, transparent); }

.slot input { position: absolute; opacity: 0; pointer-events: none; }

.slot:has(input:checked) {
  border-color: var(--oro);
  background: color-mix(in srgb, var(--oro) 8%, var(--nero-sunken));
}

.slot--full {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}

.slot__time {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  letter-spacing: var(--tracking-display);
  font-variant-numeric: tabular-nums;
}

/* ----------------------------------------------------------- quantity step */
.stepper {
  display: inline-flex;
  align-items: center;
  border: var(--border-hairline);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.stepper button {
  width: 40px;
  height: 40px;
  background: var(--nero-sunken);
  border: 0;
  color: var(--crema);
  font-size: var(--text-lg);
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out);
}
.stepper button:hover:not(:disabled) { background: var(--nero-line); color: var(--oro); }
.stepper button:disabled { opacity: 0.3; cursor: not-allowed; }

.stepper__value {
  min-width: 44px;
  text-align: center;
  font-variant-numeric: tabular-nums;
  font-size: var(--text-base);
}

/* --------------------------------------------------------------- badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  border: 1px solid currentcolor;
}

.badge--ok { color: var(--verde); }
.badge--warn { color: var(--oro); }
.badge--critical { color: var(--rosso); }
.badge--muted { color: var(--crema-faint); }

/* ---------------------------------------------------------------- alerts */
.alert {
  padding: var(--space-4) var(--space-5);
  border-left: 2px solid var(--oro);
  background: var(--nero-raised);
  font-size: var(--text-sm);
  margin-bottom: var(--space-5);
}

.alert--error { border-left-color: var(--rosso); }
.alert--success { border-left-color: var(--verde); }

/* ------------------------------------------------------------- countdown */
.countdown {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.05em;
  color: var(--oro);
}

.countdown--urgent {
  color: var(--rosso);
  animation: pulse 1.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

/* ------------------------------------------------------------- pix panel */
.pix-qr {
  width: min(280px, 100%);
  margin-inline: auto;
  padding: var(--space-4);
  background: var(--bianco);
  border-radius: var(--radius-sm);
}

.pix-code {
  display: block;
  width: 100%;
  padding: var(--space-4);
  background: var(--nero-sunken);
  border: var(--border-hairline);
  border-radius: var(--radius-sm);
  color: var(--crema-muted);
  font-family: ui-monospace, "SF Mono", monospace;
  font-size: var(--text-xs);
  line-height: 1.5;
  word-break: break-all;
  max-height: 100px;
  overflow-y: auto;
}