/* AlignHour — "paper & ink with an amber hour" */
:root {
  --paper: #f7f2e8;
  --paper-2: #efe7d7;
  --card: #fffdf8;
  --ink: #1c1a16;
  --ink-2: #4a453c;
  --ink-3: #7b7466;
  --line: #ded4c1;
  --amber: #e4570f;
  --amber-ink: #b8430a;
  --amber-soft: #fbe3d3;
  --teal: #0e5a5f;
  --teal-2: #13787e;
  --heat-0: #efe7d7;
  --heat-1: #0e5a5f;
  --ok: #2f7d4f;
  --danger: #b3261e;
  --shadow: 0 1px 0 rgba(28, 26, 22, 0.04), 0 12px 32px -18px rgba(28, 26, 22, 0.35);
  --radius: 14px;
  --display: 'Fraunces', 'Iowan Old Style', Georgia, serif;
  --sans: 'Instrument Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #15130f;
    --paper-2: #1e1b16;
    --card: #1c1a15;
    --ink: #f3ecdf;
    --ink-2: #cdc4b4;
    --ink-3: #978e7e;
    --line: #353028;
    --amber: #ff7a33;
    --amber-ink: #ff9a5e;
    --amber-soft: #3a2415;
    --teal: #3cc2c0;
    --teal-2: #6fd8d5;
    --heat-0: #25211b;
    --heat-1: #2fb3b1;
    --ok: #62c38a;
    --danger: #ff6b61;
    --shadow: 0 1px 0 rgba(0, 0, 0, 0.3), 0 16px 40px -20px rgba(0, 0, 0, 0.8);
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
/* faint paper grain */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
  background-image: radial-gradient(rgba(120, 100, 70, 0.08) 1px, transparent 1px);
  background-size: 3px 3px;
  z-index: -1;
}
a { color: var(--amber-ink); text-underline-offset: 3px; }
img, svg { max-width: 100%; display: block; }
h1, h2, h3 { font-family: var(--display); font-weight: 600; letter-spacing: -0.02em; line-height: 1.08; margin: 0; }
p { margin: 0; }
.wrap { width: min(1120px, 100% - 32px); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- header / footer ---------- */
.site-head { padding: 20px 0; }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-family: var(--display); font-size: 1.35rem; font-weight: 600; letter-spacing: -0.02em; }
.brand-mark { width: 30px; height: 30px; }
.head-tag { font-size: 0.85rem; color: var(--ink-3); }
.head-tag b { color: var(--ink); font-weight: 600; }

.site-foot { border-top: 1px solid var(--line); margin-top: 96px; padding: 32px 0 48px; color: var(--ink-3); font-size: 0.9rem; }
.site-foot .wrap { display: flex; flex-wrap: wrap; gap: 12px 28px; justify-content: space-between; }
.site-foot nav { display: flex; gap: 20px; flex-wrap: wrap; }
.site-foot a { color: var(--ink-2); }

/* ---------- hero ---------- */
.hero { padding: 40px 0 24px; }
.hero-grid { display: grid; grid-template-columns: 1.02fr 1fr; gap: 56px; align-items: start; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 0.78rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--amber-ink); background: var(--amber-soft); padding: 6px 12px; border-radius: 999px; }
.eyebrow::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 0 4px color-mix(in srgb, var(--amber) 25%, transparent); }
.hero h1 { font-size: clamp(2.6rem, 6vw, 4.6rem); margin: 20px 0 20px; font-variation-settings: 'opsz' 144, 'SOFT' 50; }
.hero h1 em { font-style: italic; color: var(--amber); font-weight: 500; }
.lede { font-size: 1.15rem; color: var(--ink-2); max-width: 34ch; }
.hero-points { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 10px; color: var(--ink-2); }
.hero-points li { display: flex; gap: 10px; align-items: baseline; }
.hero-points li::before { content: '✦'; color: var(--amber); font-size: 0.8rem; }

/* animated week illustration */
.weekart { margin-top: 36px; display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; max-width: 420px; }
.weekart span { aspect-ratio: 1.6; border-radius: 5px; background: var(--paper-2); border: 1px solid var(--line); animation: pulse 6s ease-in-out infinite; }
.weekart span.h1 { background: color-mix(in srgb, var(--heat-1) 30%, var(--heat-0)); }
.weekart span.h2 { background: color-mix(in srgb, var(--heat-1) 60%, var(--heat-0)); }
.weekart span.h3 { background: var(--amber); border-color: var(--amber); animation-name: glow; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.75; } }
@keyframes glow { 0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--amber) 40%, transparent); } 50% { box-shadow: 0 0 0 6px color-mix(in srgb, var(--amber) 0%, transparent); } }

/* ---------- cards & forms ---------- */
.card { background: var(--card); border: 1px solid var(--line); border-radius: calc(var(--radius) + 4px); box-shadow: var(--shadow); padding: 28px; }
.card h2 { font-size: 1.6rem; }
.card .sub { color: var(--ink-3); margin-top: 6px; font-size: 0.95rem; }
.step { display: grid; gap: 10px; margin-top: 24px; }
.step-label { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 0.95rem; }
.step-num { width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center; background: var(--ink); color: var(--paper); font-size: 0.78rem; font-weight: 700; }
.hint { color: var(--ink-3); font-size: 0.85rem; }
label.field { display: grid; gap: 6px; font-size: 0.85rem; color: var(--ink-2); font-weight: 500; }
input[type='text'], textarea, select {
  width: 100%;
  font: inherit;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 11px 13px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
textarea { resize: vertical; min-height: 64px; }
input:focus-visible, textarea:focus-visible, select:focus-visible, button:focus-visible, a:focus-visible {
  outline: none;
  border-color: var(--amber);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--amber) 28%, transparent);
}
.row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
details.more summary { cursor: pointer; color: var(--ink-3); font-size: 0.88rem; list-style: none; }
details.more summary::before { content: '+ '; }
details.more[open] summary::before { content: '− '; }
details.more textarea { margin-top: 8px; }

.btn {
  appearance: none;
  border: 0;
  cursor: pointer;
  font: 600 1rem var(--sans);
  border-radius: 12px;
  padding: 14px 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  transition: transform 0.08s, background 0.15s, box-shadow 0.15s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--ink); color: var(--paper); box-shadow: 0 6px 0 -2px var(--amber); }
.btn-primary:hover { background: color-mix(in srgb, var(--ink) 88%, var(--amber)); }
.btn-primary:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--ink-3); }
.btn-danger { background: transparent; color: var(--danger); border: 1px solid color-mix(in srgb, var(--danger) 40%, transparent); }
.btn-sm { padding: 8px 12px; font-size: 0.88rem; border-radius: 9px; }
.btn-block { width: 100%; }

.summary-line { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 22px; padding-top: 18px; border-top: 1px dashed var(--line); font-size: 0.9rem; color: var(--ink-2); }
.summary-line b { color: var(--ink); }
.msg { margin-top: 12px; font-size: 0.9rem; min-height: 1.2em; }
.msg.err { color: var(--danger); }
.msg.ok { color: var(--ok); }
.privacy-note { display: flex; gap: 10px; align-items: flex-start; margin-top: 16px; font-size: 0.85rem; color: var(--ink-3); }
.privacy-note svg { flex: none; width: 18px; height: 18px; margin-top: 2px; color: var(--teal); }

/* ---------- calendar ---------- */
.cal { border: 1px solid var(--line); border-radius: 12px; padding: 12px; background: var(--paper); user-select: none; }
.cal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.cal-head b { font-family: var(--display); font-weight: 600; font-size: 1.05rem; }
.cal-nav { display: flex; gap: 4px; }
.cal-nav button { width: 32px; height: 32px; border-radius: 8px; border: 1px solid var(--line); background: var(--card); color: var(--ink); cursor: pointer; font-size: 1rem; }
.cal-nav button:disabled { opacity: 0.35; cursor: default; }
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.cal-dow { text-align: center; font-size: 0.72rem; font-weight: 600; letter-spacing: 0.06em; color: var(--ink-3); padding: 4px 0; text-transform: uppercase; }
.cal-day { aspect-ratio: 1; border: 0; border-radius: 9px; background: transparent; color: var(--ink); font: 500 0.92rem var(--sans); cursor: pointer; position: relative; touch-action: manipulation; }
.cal-day:hover:not(:disabled) { background: var(--paper-2); }
.cal-day:disabled { color: var(--ink-3); opacity: 0.4; cursor: default; }
.cal-day.today::after { content: ''; position: absolute; left: 50%; bottom: 5px; width: 4px; height: 4px; margin-left: -2px; border-radius: 50%; background: var(--amber); }
.cal-day[aria-pressed='true'] { background: var(--ink); color: var(--paper); }
.cal-day[aria-pressed='true'].today::after { background: var(--paper); }

/* ---------- share result ---------- */
.share { display: none; }
.share.show { display: block; animation: rise 0.35s ease-out; }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.share h2 { font-size: 1.8rem; }
.linkbox { display: flex; gap: 8px; margin-top: 18px; }
.linkbox input { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.9rem; }
.share-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }

/* ---------- content sections ---------- */
.section { margin-top: 110px; }
.section-head { max-width: 640px; }
.section-head .kicker { font-size: 0.78rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--teal); }
.section-head h2 { font-size: clamp(2rem, 4vw, 2.9rem); margin-top: 10px; }
.section-head p { color: var(--ink-2); margin-top: 14px; font-size: 1.05rem; }
.steps3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 40px; counter-reset: s; }
.steps3 article { border-top: 2px solid var(--ink); padding-top: 18px; counter-increment: s; }
.steps3 article::before { content: '0' counter(s); font-family: var(--display); font-size: 2.6rem; color: var(--amber); font-weight: 500; line-height: 1; }
.steps3 h3 { font-size: 1.3rem; margin-top: 12px; }
.steps3 p { color: var(--ink-2); margin-top: 8px; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 40px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.features article { background: var(--card); padding: 26px; }
.features h3 { font-size: 1.15rem; font-family: var(--sans); font-weight: 600; letter-spacing: -0.01em; }
.features p { color: var(--ink-2); margin-top: 8px; font-size: 0.95rem; }
.features .ic { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: var(--amber-soft); color: var(--amber-ink); margin-bottom: 14px; font-size: 1.1rem; }
.faq { margin-top: 32px; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); padding: 18px 0; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 1.05rem; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::after { content: '+'; color: var(--amber); font-size: 1.3rem; line-height: 1; }
.faq details[open] summary::after { content: '−'; }
.faq details p { color: var(--ink-2); margin-top: 10px; max-width: 70ch; }
.prose { max-width: 70ch; }
.prose h1 { font-size: clamp(2.2rem, 5vw, 3.2rem); margin: 24px 0 16px; }
.prose h2 { font-size: 1.5rem; margin: 36px 0 10px; }
.prose p, .prose li { color: var(--ink-2); margin-top: 10px; }

/* ---------- poll page ---------- */
.poll-head { padding: 24px 0 8px; }
.poll-head h1 { font-size: clamp(2rem, 5vw, 3.2rem); margin-top: 14px; overflow-wrap: anywhere; }
.poll-head .note { color: var(--ink-2); margin-top: 12px; max-width: 70ch; white-space: pre-wrap; overflow-wrap: anywhere; }
.meta-row { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 16px; font-size: 0.88rem; color: var(--ink-3); align-items: center; }
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 5px 11px; border-radius: 999px; background: var(--paper-2); border: 1px solid var(--line); color: var(--ink-2); font-size: 0.82rem; }
.pill.expire { background: color-mix(in srgb, var(--teal) 10%, var(--card)); color: var(--teal); border-color: color-mix(in srgb, var(--teal) 30%, transparent); }
.poll-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px; margin-top: 28px; align-items: start; }
.panel h2 { font-size: 1.4rem; }
.panel .sub { margin-top: 4px; }
.tabs { display: none; }
.tz-row { display: flex; gap: 10px; align-items: center; margin-top: 18px; font-size: 0.85rem; color: var(--ink-3); }
.tz-row select { width: auto; max-width: 100%; padding: 6px 10px; font-size: 0.85rem; }

.slotgrid-wrap { overflow-x: auto; margin-top: 14px; padding-bottom: 6px; -webkit-overflow-scrolling: touch; }
.slotgrid { display: grid; gap: 3px; user-select: none; -webkit-user-select: none; min-width: min-content; }
.sg-corner { position: sticky; left: 0; background: var(--card); z-index: 1; }
.sg-day { text-align: center; font-size: 0.75rem; line-height: 1.2; color: var(--ink-3); padding: 2px 2px 6px; min-width: 52px; }
.sg-day b { display: block; color: var(--ink); font-size: 0.95rem; font-family: var(--display); font-weight: 600; }
.sg-time { font-size: 0.72rem; color: var(--ink-3); text-align: right; padding-right: 6px; align-self: center; white-space: nowrap; position: sticky; left: 0; background: var(--card); z-index: 1; font-variant-numeric: tabular-nums; }
.sg-cell { height: 30px; border-radius: 6px; border: 1px solid var(--line); background: var(--paper); padding: 0; cursor: pointer; font: 600 0.72rem var(--sans); color: var(--ink); touch-action: manipulation; transition: background 0.08s; }
.sg-cell.none { background: repeating-linear-gradient(45deg, transparent 0 4px, var(--paper-2) 4px 6px); border-style: dashed; cursor: default; opacity: 0.5; }
.pick .sg-cell[aria-pressed='true'] { background: var(--amber); border-color: var(--amber); color: #fff; }
.pick .sg-cell:not(.none):hover { border-color: var(--amber); }
.heat .sg-cell { cursor: pointer; }
.heat .sg-cell.best { outline: 2px solid var(--amber); outline-offset: 1px; }
.heat .sg-cell.sel { box-shadow: 0 0 0 2px var(--ink); }
.pick-tools { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }

.who { margin-top: 14px; padding: 14px; border-radius: 12px; background: var(--paper); border: 1px solid var(--line); font-size: 0.9rem; min-height: 64px; }
.who b { font-weight: 600; }
.who .yes { color: var(--ok); }
.who .no { color: var(--ink-3); }
.best-list { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 8px; }
.best-list li { display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--line); background: var(--paper); }
.best-list li.all { border-color: var(--amber); background: var(--amber-soft); }
.best-list .when { font-weight: 600; }
.best-list .rate { font-variant-numeric: tabular-nums; font-weight: 600; color: var(--teal); }
.best-list li.all .rate { color: var(--amber-ink); }
.bar { grid-column: 1 / -1; height: 6px; border-radius: 99px; background: var(--paper-2); overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--teal); border-radius: inherit; }
.best-list li.all .bar i { background: var(--amber); }
.people { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.people .pill { background: var(--card); }
.empty { color: var(--ink-3); font-size: 0.92rem; padding: 18px; text-align: center; border: 1px dashed var(--line); border-radius: 12px; margin-top: 14px; }
.legend { display: flex; align-items: center; gap: 8px; font-size: 0.75rem; color: var(--ink-3); margin-top: 10px; }
.legend .ramp { width: 120px; height: 8px; border-radius: 99px; background: linear-gradient(90deg, var(--heat-0), var(--heat-1)); border: 1px solid var(--line); }
.state { text-align: center; padding: 80px 0; }
.state h1 { font-size: 2.2rem; }
.state p { color: var(--ink-2); margin: 12px auto 24px; max-width: 46ch; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%) translateY(20px); background: var(--ink); color: var(--paper); padding: 12px 18px; border-radius: 12px; font-size: 0.92rem; opacity: 0; pointer-events: none; transition: 0.25s; z-index: 10; max-width: calc(100% - 32px); }
.toast.show { opacity: 1; transform: translateX(-50%); }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .hero-grid, .poll-grid { grid-template-columns: 1fr; gap: 32px; }
  .steps3, .features { grid-template-columns: 1fr; }
  .lede { max-width: none; }
  .weekart { display: none; }
  .tabs { display: flex; gap: 6px; margin-top: 22px; padding: 4px; background: var(--paper-2); border-radius: 12px; border: 1px solid var(--line); }
  .tabs button { flex: 1; border: 0; background: transparent; padding: 10px; border-radius: 9px; font: 600 0.92rem var(--sans); color: var(--ink-2); cursor: pointer; }
  .tabs button[aria-selected='true'] { background: var(--card); color: var(--ink); box-shadow: var(--shadow); }
  .poll-grid { margin-top: 16px; }
  .poll-grid > .panel[hidden-mobile] { display: none; }
}
@media (max-width: 520px) {
  .card { padding: 20px; }
  .row { grid-template-columns: 1fr 1fr; }
  .row .field:last-child { grid-column: 1 / -1; }
  .head-tag { display: none; }
  .section { margin-top: 80px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}