:root {
  --bg: #f5f5f7;
  --card: #ffffff;
  --text: #1d1d1f;
  --muted: #86868b;
  --line: rgba(0, 0, 0, 0.08);
  --fill: rgba(0, 0, 0, 0.045);
  --accent: #0071e3;
  --accent-soft: rgba(0, 113, 227, 0.1);
  --red: #e0302a;
  --red-soft: rgba(255, 59, 48, 0.1);
  --green: #1f8a38;
  --green-soft: rgba(52, 199, 89, 0.14);
  --yellow-soft: rgba(255, 204, 0, 0.18);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --card: #1c1c1e;
    --text: #f5f5f7;
    --muted: #98989d;
    --line: rgba(255, 255, 255, 0.12);
    --fill: rgba(255, 255, 255, 0.08);
    --accent: #0a84ff;
    --accent-soft: rgba(10, 132, 255, 0.18);
    --red: #ff6961;
    --red-soft: rgba(255, 69, 58, 0.18);
    --green: #30d158;
    --green-soft: rgba(48, 209, 88, 0.16);
    --yellow-soft: rgba(255, 214, 10, 0.16);
    --shadow: none;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}
header { padding: 2.5rem 1.5rem 0.75rem; max-width: 1100px; margin: 0 auto; }
.header-row { display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 0.65rem; }
.logo { border-radius: 9px; display: block; }
.lang-toggle label { font-size: 0.75rem; padding: 0.28rem 0.7rem; }
h1 { margin: 0; font-size: 2rem; font-weight: 700; letter-spacing: -0.025em; }
.tagline { margin: 0.15rem 0 0; color: var(--muted); font-size: 0.95rem; }
main { max-width: 1100px; margin: 0 auto; padding: 1rem 1.5rem 3rem; }
footer {
  max-width: 1100px; margin: 0 auto; padding: 0 1.5rem 2.5rem;
  color: var(--muted); font-size: 0.78rem;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- controls ---------- */

.controls {
  display: flex; flex-wrap: wrap; gap: 1rem 1.25rem; align-items: end;
  background: var(--card); border: 1px solid var(--line);
  border-radius: 18px; padding: 1.1rem 1.25rem; margin-bottom: 0.9rem;
  box-shadow: var(--shadow);
}
.controls label {
  display: flex; flex-direction: column; gap: 0.3rem;
  font-size: 0.75rem; font-weight: 500; color: var(--muted);
}
.controls input[type="number"],
.controls input[type="date"] {
  font: inherit; font-size: 0.9rem; color: var(--text);
  background: var(--fill); border: 1px solid transparent;
  border-radius: 10px; padding: 0.45rem 0.65rem;
}
.controls input:focus-visible {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.controls input[type="number"] { width: 5.5rem; }

/* segmented control */
.mode {
  display: inline-flex; gap: 2px; margin: 0; padding: 3px;
  background: var(--fill); border: none; border-radius: 11px;
}
.mode legend { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.mode label {
  flex-direction: row; align-items: center; cursor: pointer;
  padding: 0.4rem 0.9rem; border-radius: 8.5px;
  font-size: 0.85rem; font-weight: 500; color: var(--muted);
  transition: color 0.15s, background 0.15s;
}
.mode label:has(input:checked) {
  background: var(--card); color: var(--text); font-weight: 600;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}
.mode input { display: none; }

.style-control { min-width: 230px; }
.style-control input[type="range"] { width: 100%; accent-color: var(--accent); margin: 0.15rem 0 0; }
.slider-labels {
  display: flex; justify-content: space-between; gap: 1.5rem; width: 100%;
  font-size: 0.72rem; color: var(--muted);
}

.check-control {
  flex-direction: row !important; align-items: center; gap: 0.45rem !important;
  color: var(--text) !important; font-size: 0.85rem !important; font-weight: 400 !important;
  padding-bottom: 0.45rem;
}
.check-control input { accent-color: var(--accent); width: 1rem; height: 1rem; }

.months-control { display: flex; flex-direction: column; gap: 0.35rem; width: 100%; }
.months-label { font-size: 0.75rem; font-weight: 500; color: var(--muted); }
.months-hint { font-weight: 400; opacity: 0.75; }
.months { display: flex; flex-wrap: wrap; gap: 0.3rem; }
.months .chip {
  border-radius: 980px; padding: 0.2rem 0.7rem;
  font-size: 0.78rem; font-weight: 500; cursor: pointer;
  color: var(--muted); background: var(--fill); user-select: none;
  transition: background 0.15s, color 0.15s;
}
.months .chip input { display: none; }
.months .chip:has(input:checked) { color: #fff; background: var(--accent); }

/* buttons */
.toolbar { display: flex; gap: 0.5rem; align-items: center; }
.export-wrap { position: relative; }
.export-menu {
  position: absolute; top: calc(100% + 6px); left: 0; z-index: 30;
  display: flex; flex-direction: column; gap: 2px; min-width: 12rem;
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 0.35rem; box-shadow: 0 8px 30px rgba(0, 0, 0, 0.14);
}
.export-menu button {
  background: transparent; color: var(--text); font-weight: 500;
  text-align: left; border-radius: 9px; padding: 0.45rem 0.7rem; font-size: 0.85rem;
}
.export-menu button:hover { background: var(--accent-soft); color: var(--accent); filter: none; }
button {
  font: inherit; font-size: 0.88rem; font-weight: 600; cursor: pointer;
  border: none; border-radius: 980px; padding: 0.5rem 1.15rem;
  color: #fff; background: var(--accent);
  transition: filter 0.15s, background 0.15s;
}
button:hover { filter: brightness(1.08); }
button.secondary { background: var(--accent-soft); color: var(--accent); }
button.secondary.danger { background: var(--red-soft); color: var(--red); }

/* ---------- summary & confirmed plan ---------- */

.summary {
  background: var(--card); border: 1px solid var(--line); border-radius: 18px;
  padding: 1rem 1.4rem 0.95rem; margin-bottom: 0.9rem; font-size: 0.92rem;
  box-shadow: var(--shadow);
}
.stats { display: flex; flex-wrap: wrap; gap: 0.75rem 2.5rem; }
.stat-value {
  font-size: 1.75rem; font-weight: 650; letter-spacing: -0.02em; line-height: 1.15;
}
.stat-label { font-size: 0.73rem; color: var(--muted); margin-top: 1px; }
.summary-foot {
  margin: 0.65rem 0 0; font-size: 0.78rem; color: var(--muted);
  border-top: 1px solid var(--line); padding-top: 0.6rem;
}
.lost { color: var(--red); font-size: 0.78rem; }

.final {
  background: var(--card); border: 1px solid var(--line); border-radius: 18px;
  padding: 0.9rem 1.25rem; margin-bottom: 0.9rem; box-shadow: var(--shadow);
}
.final h2 {
  margin: 0 0 0.3rem; font-size: 0.8rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.06em; color: var(--green);
}
#final-summary { font-size: 0.92rem; margin-bottom: 0.55rem; }
#final-summary strong { font-weight: 650; }
#final-blocks { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.streak-chip {
  background: var(--green-soft); border-radius: 980px;
  padding: 0.25rem 0.8rem; font-size: 0.8rem; font-weight: 500;
}
.streak-chip em { color: var(--green); font-style: normal; font-weight: 600; margin-left: 0.15rem; }

/* ---------- results ---------- */

.results { display: block; }
.calendar-wrap { margin-bottom: 1.75rem; }

.suggestions h2 {
  font-size: 0.8rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--muted); margin: 1.1rem 0 0.55rem;
}
#picks, #ranked {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 0.5rem; margin-bottom: 0.5rem;
}
.empty-note { color: var(--muted); font-size: 0.8rem; margin: 0.2rem 0; grid-column: 1 / -1; }
#ignored-note { color: var(--muted); font-size: 0.8rem; margin: 0 0 0.5rem; }
#ignored-note button {
  font-size: 0.75rem; padding: 0.18rem 0.7rem; margin-left: 0.3rem;
  background: var(--accent-soft); color: var(--accent);
}

/* suggestion cards */
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 0.6rem 0.8rem 0.55rem; cursor: default;
  box-shadow: var(--shadow); transition: border-color 0.15s;
}
.card:hover { border-color: var(--accent); }
.card.added { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.card-top { display: flex; align-items: center; gap: 0.45rem; }
.range { font-size: 0.92rem; font-weight: 600; letter-spacing: -0.01em; }
.ratio {
  margin-left: auto; font-size: 0.72rem; font-weight: 700;
  color: var(--green); background: var(--green-soft);
  border-radius: 980px; padding: 0.08rem 0.5rem;
}
.main-badge {
  font-size: 0.62rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--accent); background: var(--accent-soft);
  border-radius: 980px; padding: 0.1rem 0.45rem;
}
.card .detail { color: var(--muted); font-size: 0.76rem; margin-top: 0.15rem; }
.card-actions { display: flex; gap: 0.35rem; margin-top: 0.5rem; align-items: center; }
.card-actions button { padding: 0.18rem 0.7rem; font-size: 0.74rem; }
.card-actions .btn-add { background: var(--accent-soft); color: var(--accent); }
.card.added .btn-add { background: var(--accent); color: #fff; }
.card-actions .btn-ignore {
  margin-left: auto; background: transparent; color: var(--muted);
  padding: 0.18rem 0.5rem; font-size: 0.78rem; font-weight: 500;
}
.card-actions .btn-ignore:hover { background: var(--fill); filter: none; }

/* ---------- calendar ---------- */

.legend {
  display: flex; flex-wrap: wrap; gap: 0.9rem; margin-bottom: 0.7rem;
  color: var(--muted); font-size: 0.75rem; align-items: center;
}
.sw {
  display: inline-block; width: 9px; height: 9px; border-radius: 50%;
  margin-right: 0.32rem; vertical-align: -0.5px;
}
.sw.weekend { background: var(--fill); box-shadow: inset 0 0 0 1px var(--line); }
.sw.holiday { background: var(--red); }
.sw.vacation { background: var(--green); }
.sw.confirmed { background: var(--accent); }
.sw.span { background: var(--yellow-soft); box-shadow: inset 0 0 0 1px rgba(180, 150, 0, 0.35); }
.legend-hint { margin-left: auto; font-style: italic; }

.calendar {
  display: grid; gap: 0.75rem;
  grid-template-columns: repeat(auto-fill, minmax(225px, 1fr));
}
.month {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 16px; padding: 0.8rem 0.75rem 0.9rem;
  box-shadow: var(--shadow);
}
.month h3 {
  margin: 0 0 0.55rem; font-size: 0.82rem; font-weight: 600; text-align: center;
  letter-spacing: -0.01em;
}
.grid {
  display: grid; grid-template-columns: repeat(7, 1fr); gap: 3px;
  font-size: 0.72rem; text-align: center;
}
.dow { color: var(--muted); font-size: 0.62rem; font-weight: 600; padding-bottom: 2px; }
.day {
  aspect-ratio: 1; display: flex; align-items: center; justify-content: center;
  border-radius: 50%; position: relative; font-variant-numeric: tabular-nums;
}
.day.out { visibility: hidden; }
.day.span { background: var(--yellow-soft); }
.day.weekend { color: var(--muted); }
.day.weekend:not(.span):not(.holiday) { background: var(--fill); }
.day.holiday { background: var(--red-soft); color: var(--red); font-weight: 650; }
.day.vacation { background: var(--green-soft); color: var(--green); font-weight: 650; }
.day.confirmed { background: var(--accent); color: #fff; font-weight: 650; }
.day.clickable { cursor: pointer; }
.day.clickable:hover { box-shadow: 0 0 0 2px var(--accent); }
.day.hovered { box-shadow: 0 0 0 2px var(--accent); }

/* inline tooltips */
.day[data-tip]:hover::after {
  content: attr(data-tip);
  position: absolute; bottom: calc(100% + 7px); left: 50%; transform: translateX(-50%);
  background: #333336; color: #f5f5f7;
  font-size: 0.68rem; font-weight: 500; line-height: 1.3;
  padding: 0.28rem 0.6rem; border-radius: 8px; white-space: nowrap;
  z-index: 10; pointer-events: none;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.22);
}
.day[data-tip]:hover::before {
  content: ""; position: absolute; bottom: calc(100% + 2px); left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent; border-top-color: #333336; border-bottom: none;
  z-index: 10; pointer-events: none;
}
@media (prefers-color-scheme: dark) {
  .day[data-tip]:hover::after { background: #48484a; color: #fff; }
  .day[data-tip]:hover::before { border-top-color: #48484a; }
}