:root {
  --paper: #e9ecef;
  --card: #f8f9fa;
  --ink: #0e1014;
  --ink-2: #1a1d24;
  --muted: #474d5a;
  --muted-on-ink: #aab0bd;
  --line: #c3c8d0;
  --signal: #ff4b1c;
  --signal-soft: #ffd9cd;
  --focus: #1f4fff;
  --display: "Helvetica Neue", "Arial Nova", Arial, "Liberation Sans", sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --rail: 400px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.5 var(--display);
}
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
.mono { font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.06em; text-transform: uppercase; }

:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.rail :focus-visible, .detail :focus-visible.on-ink { outline-color: #ffc2b0; }

.skip { position: absolute; left: 8px; top: -60px; background: var(--signal); color: var(--ink); padding: 8px 14px; font-weight: 700; z-index: 20; }
.skip:focus { top: 8px; }

.shell { display: grid; grid-template-columns: var(--rail) minmax(0, 1fr); min-height: 100vh; }

/* ---------- rail ---------- */
.rail {
  background: var(--ink);
  color: #f2f4f7;
  position: sticky; top: 0;
  height: 100vh; overflow-y: auto;
  padding: 28px 28px 20px;
  display: flex; flex-direction: column; gap: 22px;
}
.wordmark {
  margin: 0; font-size: 4.6rem; line-height: 0.82; font-weight: 900; letter-spacing: -0.045em;
}
.wordmark::after { content: ""; display: inline-block; width: 0.17em; height: 0.17em; background: var(--signal); margin-left: 0.06em; }
.tagline { margin: 12px 0 0; color: var(--muted-on-ink); font-size: 1rem; }
.tagline .mono { color: #f2f4f7; }

.days { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.daytile {
  display: grid; grid-template-columns: auto 1fr; grid-template-rows: auto auto; column-gap: 12px; align-items: end;
  text-align: left; padding: 10px 14px 12px;
  background: transparent; border: 2px solid #3a3f4b; color: #f2f4f7; border-radius: 0;
}
.daytile .dname { grid-column: 1 / -1; color: var(--muted-on-ink); }
.daytile .dnum { font-size: 3.6rem; font-weight: 900; line-height: 0.9; letter-spacing: -0.05em; }
.daytile .dcount { color: var(--muted-on-ink); align-self: end; padding-bottom: 4px; line-height: 1.15; }
.daytile:hover { border-color: #f2f4f7; }
.daytile[aria-pressed="true"] { background: var(--signal); border-color: var(--signal); color: var(--ink); }
.daytile[aria-pressed="true"] .dname, .daytile[aria-pressed="true"] .dcount { color: var(--ink); }

.controls { display: grid; gap: 14px; }
.field label { display: block; margin-bottom: 6px; font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted-on-ink); }
.field input, .field select {
  width: 100%; height: 48px; padding: 0 14px;
  background: #1c2028; border: 2px solid #3a3f4b; border-radius: 0; color: #f2f4f7;
  appearance: none; -webkit-appearance: none;
}
.field select {
  background-image: linear-gradient(45deg, transparent 50%, #f2f4f7 50%), linear-gradient(135deg, #f2f4f7 50%, transparent 50%);
  background-position: calc(100% - 22px) 21px, calc(100% - 16px) 21px;
  background-size: 6px 6px; background-repeat: no-repeat; padding-right: 40px;
}
.field input::placeholder { color: #8a91a0; }
.field input:hover, .field select:hover { border-color: #8a91a0; }
.field input:focus-visible, .field select:focus-visible { border-color: #fff; }

.savedtoggle {
  display: flex; align-items: center; gap: 10px; width: 100%; height: 48px; padding: 0 14px;
  background: transparent; border: 2px solid #3a3f4b; border-radius: 0; color: #f2f4f7; font-weight: 700;
}
.savedtoggle .pill { margin-left: auto; min-width: 28px; text-align: center; padding: 1px 8px; border: 2px solid currentColor; }
.savedtoggle:hover { border-color: #f2f4f7; }
.savedtoggle[aria-pressed="true"] { background: var(--signal); border-color: var(--signal); color: var(--ink); }
.savedtoggle[aria-pressed="true"] svg path { fill: currentColor; }

.shortlist { border-top: 2px solid #3a3f4b; padding-top: 14px; }
.shortlist summary {
  display: flex; justify-content: space-between; align-items: center; cursor: pointer; list-style: none;
  font-weight: 800; font-size: 1.15rem; padding: 4px 0;
}
.shortlist summary::-webkit-details-marker { display: none; }
.shortlist summary::before { content: "+"; font-family: var(--mono); width: 22px; color: var(--signal); font-weight: 700; }
.shortlist[open] summary::before { content: "–"; }
.shortlist summary span:first-of-type { margin-right: auto; }
.shortlist summary .mono { color: var(--muted-on-ink); }
.sl-empty { color: var(--muted-on-ink); margin: 10px 0 0; font-size: 0.95rem; }
.sl-list { list-style: none; margin: 10px 0 0; padding: 0; display: grid; gap: 0; }
.sl-item { display: grid; grid-template-columns: 1fr auto; align-items: center; border-bottom: 1px solid #2b303a; }
.sl-open {
  display: grid; grid-template-columns: 76px 1fr; gap: 10px; text-align: left; background: transparent; border: 0; padding: 10px 0; color: #f2f4f7;
}
.sl-open .mono { color: var(--muted-on-ink); padding-top: 3px; line-height: 1.25; }
.sl-open strong { font-weight: 700; line-height: 1.25; }
.sl-open:hover strong { text-decoration: underline; text-decoration-color: var(--signal); text-underline-offset: 3px; text-decoration-thickness: 2px; }
.sl-rm { width: 44px; height: 44px; background: transparent; border: 0; color: var(--muted-on-ink); font-size: 1.4rem; line-height: 1; }
.sl-rm:hover { color: var(--signal); }
.sl-clash { display: inline-block; margin-top: 3px; padding: 0 6px; background: var(--signal); color: var(--ink); font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; font-weight: 700; }
.sl-total { display: flex; justify-content: space-between; margin: 12px 0 0; color: var(--muted-on-ink); }
.sl-total strong { color: #f2f4f7; font-family: var(--mono); font-size: 0.95rem; }
.sl-clear { margin-top: 8px; background: transparent; border: 0; padding: 8px 0; color: var(--muted-on-ink); text-decoration: underline; text-underline-offset: 3px; }
.sl-clear:hover { color: #f2f4f7; }
.foot { margin: auto 0 0; color: #8a91a0; text-transform: none; letter-spacing: 0.02em; }

/* ---------- stage ---------- */
.stage { padding: 0 48px 80px; min-width: 0; }
.statusbar { display: flex; justify-content: space-between; gap: 20px; padding: 22px 0 14px; color: var(--muted); }
.statusbar p { margin: 0; }
#status { color: var(--ink); font-weight: 700; }

.day { margin-top: 8px; }
.day-head {
  position: sticky; top: 0; z-index: 3;
  display: flex; align-items: flex-end; gap: 20px;
  background: var(--paper); padding: 14px 0 12px; border-bottom: 4px solid var(--ink);
}
.day-num { font-size: 7.2rem; font-weight: 900; line-height: 0.74; letter-spacing: -0.06em; }
.day-meta h2 { margin: 0; font-size: 2rem; line-height: 1; font-weight: 900; letter-spacing: -0.02em; text-transform: uppercase; }
.day-meta p { margin: 6px 0 0; color: var(--muted); }
.day-signal { margin-left: auto; align-self: flex-start; width: 22px; height: 22px; background: var(--signal); }

.rows { list-style: none; margin: 0; padding: 0; }
.row {
  position: relative;
  display: grid; grid-template-columns: 124px minmax(0, 1fr) auto; column-gap: 28px; align-items: start;
  padding: 24px 0 24px 0; border-bottom: 1px solid var(--line);
  background: transparent;
}
.row.is-saved::before { content: ""; position: absolute; left: -48px; top: 0; bottom: 0; width: 8px; background: var(--signal); }
.row:hover { background: linear-gradient(90deg, transparent, rgba(255,255,255,0.55) 20%, rgba(255,255,255,0.55) 80%, transparent); }

.t-start { font-family: var(--mono); font-size: 2.1rem; font-weight: 700; line-height: 1; letter-spacing: -0.04em; }
.t-start small { font-size: 0.95rem; letter-spacing: 0; margin-left: 3px; font-weight: 700; }
.t-end { margin-top: 8px; color: var(--muted); }
.r-main { min-width: 0; }
.r-tags { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 8px; }
.tag { display: inline-block; padding: 1px 8px; border: 2px solid var(--ink); font-weight: 700; }
.tag-plain { border-color: transparent; padding-left: 0; color: var(--muted); font-weight: 400; }
.r-title { margin: 0; font-size: 1.7rem; line-height: 1.12; font-weight: 800; letter-spacing: -0.02em; text-wrap: balance; }
.r-where { margin: 8px 0 0; color: var(--muted); }
.r-sum { margin: 8px 0 0; max-width: 58ch; }

.ruler {
  position: relative; height: 14px; margin-top: 16px; max-width: 560px;
  background:
    repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px calc(100% / 14)),
    linear-gradient(var(--line), var(--line)) 0 100% / 100% 1px no-repeat;
}
.ruler .bar { position: absolute; top: 2px; height: 10px; background: var(--ink); min-width: 4px; }
.is-saved .ruler .bar, .ruler.on-signal .bar { background: var(--signal); }
.ruler-labels { display: flex; justify-content: space-between; max-width: 560px; margin-top: 4px; color: var(--muted); font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.04em; }

.r-act { display: flex; flex-direction: column; align-items: flex-end; gap: 10px; min-width: 128px; }
.price { font-size: 1.7rem; font-weight: 900; letter-spacing: -0.03em; line-height: 1; }
.price.free { background: var(--ink); color: var(--paper); padding: 4px 10px 5px; font-size: 1rem; letter-spacing: 0.04em; text-transform: uppercase; font-family: var(--mono); font-weight: 700; }
.act-btns { display: flex; gap: 8px; margin-top: 6px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 0 18px; border: 2px solid var(--ink); border-radius: 0; background: transparent; font-weight: 800;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn-solid { background: var(--ink); color: var(--paper); }
.btn-solid:hover { background: var(--signal); border-color: var(--signal); color: var(--ink); }
.iconbtn {
  width: 44px; height: 44px; display: inline-grid; place-items: center; padding: 0;
  background: transparent; border: 2px solid var(--ink); border-radius: 0;
}
.iconbtn:hover { background: var(--ink); color: var(--paper); }
.iconbtn[aria-pressed="true"] { background: var(--signal); border-color: var(--signal); color: var(--ink); }
.iconbtn[aria-pressed="true"] path { fill: currentColor; }

.empty { margin-top: 48px; padding: 40px; border: 4px solid var(--ink); background: var(--card); max-width: 640px; }
.empty[hidden] { display: none; }
.empty-big { margin: 0 0 8px; font-size: 3rem; line-height: 1; font-weight: 900; letter-spacing: -0.04em; }
.empty p { margin-top: 0; }
.empty .btn { margin-top: 8px; }

/* ---------- detail sheet ---------- */
.detail {
  margin: 0 0 0 auto; padding: 0; border: 0; border-left: 4px solid var(--ink);
  width: min(600px, 100%); max-width: none; height: 100dvh; max-height: none;
  background: var(--card); color: var(--ink);
}
.detail::backdrop { background: rgba(14, 16, 20, 0.62); }
.detail[open] { animation: slide-in 220ms cubic-bezier(.2,.8,.2,1); }
.detail[open]::backdrop { animation: fade-in 220ms ease-out; }
@keyframes slide-in { from { transform: translateX(40px); opacity: 0; } to { transform: none; opacity: 1; } }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }

.d-wrap { display: flex; flex-direction: column; height: 100%; }
.d-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 14px 24px; background: var(--ink); color: #f2f4f7; }
.d-top .mono { color: var(--muted-on-ink); }
.d-top .btn { border-color: #f2f4f7; color: #f2f4f7; min-height: 44px; }
.d-top .btn:hover { background: #f2f4f7; color: var(--ink); }
.d-top :focus-visible { outline-color: #ffc2b0; }
.d-scroll { flex: 1; overflow-y: auto; padding: 28px 32px 24px; }
.d-hero { display: flex; align-items: flex-end; gap: 16px; border-bottom: 4px solid var(--ink); padding-bottom: 14px; }
.d-hero .day-num { font-size: 6rem; }
.d-hero p { margin: 0; }
.d-title { margin: 22px 0 0; font-size: 2.3rem; line-height: 1.04; font-weight: 900; letter-spacing: -0.03em; text-wrap: balance; }
.d-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin: 24px 0; border-top: 2px solid var(--ink); }
.d-facts div { padding: 12px 12px 12px 0; border-bottom: 1px solid var(--line); }
.d-facts dt { color: var(--muted); font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.06em; text-transform: uppercase; }
.d-facts dd { margin: 2px 0 0; font-weight: 800; font-size: 1.1rem; line-height: 1.3; }
.d-body p { margin: 0 0 16px; max-width: 54ch; }
.d-body p.lead { font-size: 1.2rem; line-height: 1.45; }
.d-body p.access { border-left: 6px solid var(--signal); padding: 4px 0 4px 16px; background: transparent; }
.d-body p.access::before { content: "Access & practical notes"; display: block; color: var(--muted); margin-bottom: 2px; font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.06em; text-transform: uppercase; }
.d-hero .day-meta p.d-day { margin: 0; font-size: 1.5rem; font-weight: 900; line-height: 1; text-transform: uppercase; letter-spacing: -0.02em; }
.d-clash { margin: 0 0 16px; padding: 10px 14px; background: var(--signal-soft); border: 2px solid var(--ink); font-weight: 600; }
.d-clash[hidden] { display: none; }
.d-foot { padding: 16px 32px 20px; border-top: 4px solid var(--ink); background: var(--card); }
.d-save { width: 100%; min-height: 56px; font-size: 1.1rem; }
.d-save[aria-pressed="true"] { background: var(--signal); border-color: var(--ink); color: var(--ink); }
.d-save[aria-pressed="false"] { background: var(--ink); color: var(--paper); }
.d-save:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.d-save[aria-pressed="true"]:hover { background: var(--ink); color: var(--signal); }
.d-save svg path { fill: none; }
.d-save[aria-pressed="true"] svg path { fill: currentColor; }

/* ---------- mobile ---------- */
@media (max-width: 960px) {
  .shell { display: block; }
  .rail { position: static; height: auto; overflow: visible; padding: 18px 16px 16px; gap: 14px; }
  .brand { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; }
  .wordmark { font-size: 3.4rem; }
  .tagline { margin: 0; text-align: right; font-size: 0.92rem; max-width: 15ch; line-height: 1.25; }
  .tagline .mono { display: block; }
  .daytile { padding: 8px 12px 10px; }
  .daytile .dnum { font-size: 2.6rem; }
  .controls { grid-template-columns: 1fr 1fr; gap: 10px; }
  .field-search { grid-column: 1 / -1; }
  .field label { margin-bottom: 4px; }
  .savedtoggle { align-self: end; padding: 0 12px; }
  .savedtoggle span:nth-of-type(1) { white-space: nowrap; }
  .foot { display: none; }
  .stage { padding: 0 16px 60px; }
  .statusbar { padding: 16px 0 10px; }
  .hint { display: none; }
  .day-head { top: 0; gap: 12px; padding: 10px 0; }
  .day-num { font-size: 4.2rem; }
  .day-meta h2 { font-size: 1.4rem; }
  .day-meta p { margin-top: 4px; font-size: 0.92rem; }
  .row { grid-template-columns: 74px minmax(0, 1fr); column-gap: 14px; padding: 18px 0; }
  .row.is-saved::before { left: -16px; width: 6px; }
  .t-start { font-size: 1.45rem; }
  .t-start small { font-size: 0.8rem; }
  .t-end { font-size: 0.72rem; }
  .r-title { font-size: 1.3rem; }
  .r-sum { display: none; }
  .r-act { grid-column: 1 / -1; flex-direction: row; align-items: center; justify-content: space-between; margin-top: 14px; min-width: 0; }
  .act-btns { margin-top: 0; }
  .price { font-size: 1.4rem; }
  .ruler, .ruler-labels { max-width: none; }
  .detail { width: 100%; border-left: 0; }
  .d-scroll { padding: 22px 18px 18px; }
  .d-top { padding: 10px 16px; }
  .d-hero .day-num { font-size: 4.6rem; }
  .d-title { font-size: 1.85rem; }
  .d-foot { padding: 12px 16px 16px; }
  .empty { padding: 24px; margin-top: 28px; }
  .empty-big { font-size: 2.2rem; }
}

@media (max-width: 380px) {
  .row { grid-template-columns: 66px minmax(0, 1fr); column-gap: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  .detail[open], .detail[open]::backdrop { animation: none; }
  * { scroll-behavior: auto !important; transition: none !important; }
}