/* Page frame: content centered without wrapper divs */
body > header,
main,
body > footer {
  padding-inline: max(var(--space-3), (100% - var(--content-width)) / 2);
}

body > header {
  display: grid;
  gap: var(--space-2);
  padding-block: var(--space-5) var(--space-4);
}

body > header h1 {
  font-size: clamp(1.75rem, 1.2rem + 3vw, 2.75rem);
}

.eyebrow {
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

main > section {
  display: grid;
  gap: var(--space-3);
  padding-block: var(--space-4);
}

/* Countdown: four equal columns; tabular digits so changing numbers never shift the layout */
.clock {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-2);
}

.clock-unit {
  display: grid;
  justify-items: center;
  padding: var(--space-3) var(--space-1);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background-color: var(--card-bg);
}

.clock-value {
  display: inline-block;
  min-width: 2ch; /* "--" is narrower than "15": reserve two digits so the value never moves */
  font-size: clamp(1.75rem, 1rem + 4vw, 3rem);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
  text-align: center;
}

/* JS fills these lines after load (the full event date, and the visitor's own time), and on
   phones each can wrap to two lines: reserve both lines so nothing below them shifts (CLS 0) */
.event-time,
.local-time {
  min-height: 3.2em;
}

.clock-label,
.event-time,
.local-time,
body > footer {
  color: var(--text-muted);
}

.clock-label {
  font-size: 0.8125rem;
}

.countdown-status {
  color: var(--accent);
  font-weight: 700;
}

/* Reminder form */
#reminder-form {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-4);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background-color: var(--card-bg);
}

.field {
  display: grid;
  gap: var(--space-1);
}

.field label {
  font-weight: 600;
}

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

.field input:not([type="checkbox"]) {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--field-border);
  border-radius: var(--radius);
  background-color: var(--bg-primary);
}

.field-check {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.field-check input {
  width: 1.25rem;
  height: 1.25rem;
  accent-color: var(--accent);
}

#reminder-form button {
  justify-self: start;
  padding: var(--space-2) var(--space-4);
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  font-weight: 700;
}

#submit-btn {
  background-color: var(--accent);
  color: var(--on-accent);
}

#reset-btn {
  background-color: transparent;
  color: var(--accent);
}

/* State styles: the form's data-state attribute is set by the state machine */
#reminder-form[data-state="submitting"] #submit-btn {
  cursor: progress;
  opacity: 0.7;
}

#reminder-form[data-state="success"] .form-status {
  color: var(--success);
  font-weight: 700;
}

.form-error {
  color: var(--error);
  font-weight: 600;
}

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

.demo-notes summary {
  cursor: pointer;
}

body > footer {
  padding-block: var(--space-4);
  border-block-start: 1px solid var(--border-color);
}