:root {
  color-scheme: dark;
  --bg: #0b0d10;
  --card: #141b22;
  --card-strong: #1d2730;
  --ink: #f5f1e8;
  --muted: #b7c0c8;
  --accent: #f26a2e;
  --accent-dark: #b84a1d;
  --line: #394653;
  --marked: #f6c453;
  --accepted: #4fb286;
  --canceled: #d36b78;
  --focus: #7dd3fc;
  font-family: "Aptos", "Segoe UI", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; background: linear-gradient(180deg, rgb(11 13 16 / 82%), rgb(11 13 16 / 94%)), url("assets/boulder-bg.svg") center/cover fixed; color: var(--ink); }
button, input, textarea { font: inherit; }
button { border: 2px solid #ff9b68; border-radius: 999px; background: var(--accent); color: #15100d; padding: 0.8rem 1.1rem; font-weight: 900; cursor: pointer; }
button:hover { background: #ff8a50; }
button:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
button.secondary { background: #25313b; border-color: #7a8792; color: var(--ink); }
button.ghost { background: #101820; border: 1px solid var(--line); color: var(--ink); width: 2.5rem; height: 2.5rem; padding: 0; }
input, textarea { width: 100%; border: 1px solid var(--line); border-radius: 0.9rem; background: #0f151b; color: var(--ink); padding: 0.85rem 1rem; }
label { color: var(--muted); font-weight: 850; font-size: 0.9rem; }
.shell { width: min(980px, calc(100% - 2rem)); margin: 0 auto; padding: 3rem 0; }
.hero { padding: 3rem 0 1.25rem; }
.eyebrow { color: #ff9b68; font-weight: 950; letter-spacing: 0.14em; text-transform: uppercase; }
h1 { font-size: clamp(2.3rem, 7vw, 5.4rem); line-height: 0.95; margin: 0; max-width: 830px; text-shadow: 0 5px 30px rgb(0 0 0 / 55%); }
h2, h3 { margin-top: 0; }
.lede { max-width: 740px; color: #d7e4e8; font-size: 1.15rem; line-height: 1.7; }
.card { background: color-mix(in srgb, var(--card) 92%, black); border: 1px solid var(--line); border-radius: 1.5rem; box-shadow: 0 24px 70px rgb(0 0 0 / 34%); padding: 1.25rem; margin: 1rem 0; }
.stack { display: grid; gap: 0.65rem; }
.inline-field, .share-actions { display: flex; gap: 0.75rem; align-items: center; }
.inline-field input { flex: 1; }
.status { min-height: 1.5rem; color: #ffcf99; font-weight: 800; }
.is-hidden { display: none; }
.intro-card { display: flex; justify-content: space-between; gap: 1rem; align-items: center; }
.session-panel { align-items: center; display: flex; gap: 1rem; }
.mascot-button { background: #0f151b; border: 1px solid var(--line); border-radius: 1rem; padding: 0; width: min(16rem, 42vw); }
.mascot-button:hover { background: #17202a; }
.mascot { aspect-ratio: 1 / 1; border-radius: 1rem; display: block; height: auto; object-fit: contain; width: 100%; }
.goose-received { border-color: #ffcf99; box-shadow: inset 0 0 0 1px #ffcf99, 0 24px 70px rgb(0 0 0 / 34%); }
.date-form { display: grid; grid-template-columns: 1fr 1.4fr auto; gap: 0.9rem; align-items: end; }
.calendar-heading { display: flex; justify-content: space-between; align-items: center; }
.weekdays, .calendar-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 0.45rem; }
.weekdays { color: var(--muted); font-weight: 900; margin-bottom: 0.5rem; text-align: center; }
.day { min-height: 5rem; border: 1px solid var(--line); border-radius: 1rem; background: #101820; color: var(--ink); padding: 0.6rem; text-align: left; }
.day.is-outside { opacity: 0.45; }
.day.is-selected { font-weight: 850; }
.day.is-accepted { background: #143326; border-color: var(--accepted); box-shadow: inset 0 0 0 2px var(--accepted); }
.day.is-proposed { background: #332616; border-color: var(--marked); box-shadow: inset 0 0 0 2px var(--marked); }
.day.is-canceled { background: #35191f; border-color: var(--canceled); box-shadow: inset 0 0 0 2px var(--canceled); }
.day-number { display: block; font-weight: 950; }
.day-note { display: block; margin-top: 0.45rem; color: #f6d58d; font-size: 0.76rem; overflow-wrap: anywhere; }
.date-list { display: grid; gap: 0.5rem; padding: 0; list-style: none; }
.date-list li { display: flex; justify-content: space-between; gap: 1rem; align-items: center; border-bottom: 1px solid var(--line); padding: 0.65rem 0; }
.date-list .remove { background: #8f352b; border-color: #e4877d; color: white; padding: 0.55rem 0.8rem; }
.share-card textarea { margin-top: 0.75rem; }
.user-picker { border: 1px solid var(--line); border-radius: 1rem; display: flex; gap: 1rem; padding: 0.8rem 1rem; }
.user-picker legend { color: var(--muted); font-weight: 800; padding: 0 0.35rem; }
.user-picker label { align-items: center; color: var(--ink); display: flex; gap: 0.4rem; }
.user-picker input { width: auto; accent-color: var(--accent); }
.date-list small { color: var(--muted); }
.date-list .accept { background: #2f8c67; border-color: #8ee7bf; color: #07130e; padding: 0.55rem 0.8rem; }
.problem-report { margin: 1.5rem 0 0; text-align: center; }
.problem-report summary { color: #ff9b68; cursor: pointer; display: inline-block; font-weight: 900; list-style: none; text-decoration: underline; text-underline-offset: 0.25rem; }
.problem-report summary::-webkit-details-marker { display: none; }
.problem-report[open] { text-align: left; }
.debug-heading { align-items: center; display: flex; gap: 1rem; justify-content: space-between; }
.debug-log { background: #080d11; border: 1px solid #314842; border-radius: 1rem; color: #dff8ed; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; min-height: 12rem; overflow: auto; padding: 1rem; resize: vertical; white-space: pre-wrap; }
@media (max-width: 760px) {
  .inline-field, .intro-card, .share-actions, .debug-heading, .user-picker, .session-panel { align-items: stretch; flex-direction: column; }
  .date-form { grid-template-columns: 1fr; }
  .day { min-height: 4rem; padding: 0.45rem; }
  .mascot-button { width: 100%; }
}