/* Time Converter — tokens first; never use literal colours below the token blocks. */
:root, [data-theme="dark"] {
    --bg: #070d1a;
    --bg-glow-1: rgba(56, 189, 248, .10);
    --bg-glow-2: rgba(59, 130, 246, .08);
    --card: rgba(255, 255, 255, .035);
    --card-solid: #0c1424;
    --card-border: rgba(255, 255, 255, .08);
    --raise: rgba(255, 255, 255, .06);
    --raise-2: rgba(255, 255, 255, .1);
    --text: #e6edf7;
    --muted: #8ea0bb;
    --faint: #5b6b84;
    --accent: #38bdf8;
    --accent-ink: #04121c;
    --accent-soft: rgba(56, 189, 248, .14);
    --now: #4ade80;
    --sel: #fbbf24;
    --warn: #fbbf24;
    --warn-soft: rgba(251, 191, 36, .1);
    --shadow: 0 18px 50px rgba(0, 0, 0, .45);

    --c-day: #d6e6ff;      --c-day-ink: #0f2236;
    --c-tw: #6d97ad;       --c-tw-ink: #071a25;
    --c-dark: #253a4b;     --c-dark-ink: #dbe6f2;
    --c-wk: #34d399;       --c-wk-ink: #032016;
    --c-fr: #2f5f52;       --c-fr-ink: #d3f5e7;
    --c-sl: #172433;       --c-sl-ink: #7f93ad;
    --c-we: #3a3a64;       --c-we-ink: #cfd2f2;
    color-scheme: dark;
}
[data-theme="light"] {
    --bg: #f3f6fb;
    --bg-glow-1: rgba(56, 189, 248, .12);
    --bg-glow-2: rgba(99, 102, 241, .06);
    --card: #ffffff;
    --card-solid: #ffffff;
    --card-border: #e0e7f1;
    --raise: #f1f5fa;
    --raise-2: #e6edf6;
    --text: #0f1b2d;
    --muted: #5a6b84;
    --faint: #94a3b8;
    --accent: #0b8fd3;
    --accent-ink: #ffffff;
    --accent-soft: rgba(11, 143, 211, .1);
    --now: #22a55a;
    --sel: #e08a00;
    --warn: #b45309;
    --warn-soft: #fff7e6;
    --shadow: 0 16px 40px rgba(15, 27, 45, .14);

    --c-day: #e1ecff;      --c-day-ink: #10243a;
    --c-tw: #7fa6ba;       --c-tw-ink: #08202d;
    --c-dark: #3a505d;     --c-dark-ink: #ffffff;
    --c-wk: #3ccf8e;       --c-wk-ink: #04241a;
    --c-fr: #b9ead3;       --c-fr-ink: #0e3a2b;
    --c-sl: #dfe5ee;       --c-sl-ink: #6b7c93;
    --c-we: #ece6f6;       --c-we-ink: #5b4f78;
    color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    min-height: 100vh;
    font-family: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
    font-size: 15px;
    color: var(--text);
    background:
        radial-gradient(900px 500px at 10% -10%, var(--bg-glow-1), transparent 60%),
        radial-gradient(800px 500px at 100% 0%, var(--bg-glow-2), transparent 60%),
        var(--bg);
    background-attachment: fixed;
}
button, input, select { font: inherit; color: inherit; }
.mono, .time, .cell { font-variant-numeric: tabular-nums; }

/* ---------- top bar ---------- */
.topbar {
    position: sticky; top: 0; z-index: 30;
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    padding: 10px 24px;
    background: color-mix(in srgb, var(--bg) 82%, transparent);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border);
}
.crumbs { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--muted); }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--accent); }
.crumbs [aria-current] { color: var(--text); font-weight: 600; }
.topbar-actions { display: flex; align-items: center; gap: 10px; }

.wrap { max-width: 1480px; margin: 0 auto; padding: 24px 24px 48px; }
.hero h1 { margin: 6px 0 6px; font-size: clamp(26px, 3vw, 34px); letter-spacing: -.01em; }
.hero p { margin: 0 0 20px; color: var(--muted); max-width: 760px; line-height: 1.55; }

.card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 14px;
    padding: 18px 20px;
}
.card + .card, .card + .cols, .cols { margin-top: 16px; }
.card h3 { margin: 0; font-size: 15px; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 12px; }

/* ---------- buttons ---------- */
.btn {
    display: inline-flex; align-items: center; gap: 6px;
    height: 36px; padding: 0 14px;
    border-radius: 9px; border: 1px solid var(--card-border);
    background: var(--raise); color: var(--text);
    font-size: 14px; font-weight: 500; text-decoration: none; cursor: pointer;
    transition: background .15s, border-color .15s;
}
.btn:hover { background: var(--raise-2); border-color: var(--accent); }
.btn.is-live { border-color: var(--now); color: var(--now); }
.icon-btn {
    display: inline-grid; place-items: center;
    width: 36px; height: 36px; border-radius: 9px;
    border: 1px solid var(--card-border); background: var(--raise);
    font-size: 20px; line-height: 1; cursor: pointer;
}
.icon-btn:hover { border-color: var(--accent); color: var(--accent); }
.seg { display: inline-flex; padding: 3px; gap: 2px; border-radius: 10px; background: var(--raise); border: 1px solid var(--card-border); }
.seg button {
    border: 0; background: transparent; padding: 6px 12px; border-radius: 7px;
    font-size: 13px; font-weight: 500; color: var(--muted); cursor: pointer;
}
.seg button[aria-pressed="true"] { background: var(--accent); color: var(--accent-ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---------- search ---------- */
.search { position: relative; }
.search-ico { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--muted); pointer-events: none; }
.search input {
    width: 100%; height: 50px; padding: 0 44px 0 42px;
    border-radius: 12px; border: 1px solid var(--card-border);
    background: var(--raise); font-size: 16px; outline: none;
}
.search input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.search input::-webkit-search-cancel-button { display: none; }
.kbd-hint {
    position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
    font-family: 'IBM Plex Mono', monospace; font-size: 12px; color: var(--faint);
    border: 1px solid var(--card-border); border-radius: 5px; padding: 1px 7px;
}
.results {
    position: absolute; left: 0; right: 0; top: calc(100% + 6px); z-index: 40;
    margin: 0; padding: 6px; list-style: none;
    max-height: min(460px, 60vh); overflow-y: auto;
    background: var(--card-solid); border: 1px solid var(--card-border); border-radius: 12px;
    box-shadow: var(--shadow);
}
.results li { display: flex; align-items: center; gap: 12px; padding: 9px 10px; border-radius: 8px; cursor: pointer; }
.results li.sub { padding-left: 34px; }
.results li[aria-selected="true"] { background: var(--accent-soft); }
.results li.info { cursor: default; color: var(--muted); font-size: 13px; }
.results .flag { width: 24px; text-align: center; font-size: 18px; flex: none; }
.results .flag.ico { font-size: 12px; font-weight: 700; color: var(--accent); font-family: 'IBM Plex Mono', monospace; }
.results .r-main { flex: 1; min-width: 0; }
.results .r-title { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.results .r-title .tag { margin-left: 8px; font-size: 11px; font-weight: 600; color: var(--accent); text-transform: uppercase; letter-spacing: .04em; }
.results .r-sub { font-size: 12.5px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.results .r-time { text-align: right; font-size: 13px; flex: none; }
.results .r-time b { display: block; font-family: 'IBM Plex Mono', monospace; font-weight: 500; }
.results .r-time span { color: var(--muted); font-size: 12px; }

.toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin-top: 14px; }
.daynav { display: flex; align-items: center; gap: 6px; }
.daynav input, .timefield input, .dur select {
    height: 36px; padding: 0 10px; border-radius: 9px;
    border: 1px solid var(--card-border); background: var(--raise);
}
.timefield { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.timefield b { color: var(--text); font-weight: 600; }
.notice {
    margin: 12px 0 0; padding: 9px 12px; border-radius: 9px;
    background: var(--warn-soft); color: var(--warn); font-size: 13.5px; line-height: 1.45;
}

/* ---------- board ---------- */
.board-card { padding: 18px 0 14px; background: var(--card-solid); }
.board-title {
    margin: 0 20px 14px; padding-bottom: 12px;
    border-bottom: 1px solid var(--card-border);
    color: var(--accent); font-size: 22px; font-weight: 700; letter-spacing: .02em; text-transform: uppercase;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.board { overflow-x: auto; overflow-y: hidden; outline: none; padding-bottom: 6px; scrollbar-width: thin; }
.board:focus-visible { box-shadow: inset 0 0 0 2px var(--accent); }
.grid { position: relative; display: inline-block; min-width: 100%; padding: 4px 20px 6px 0; }
.row { display: flex; align-items: center; padding: 8px 0 18px; }
.row.dragging { opacity: .45; }
.row.drop-before { box-shadow: inset 0 2px 0 var(--accent); }

.rowhead {
    position: sticky; left: 0; z-index: 3;
    display: flex; align-items: center; gap: 12px;
    width: var(--headw, 400px); flex: none; padding: 0 14px 0 20px; align-self: stretch;
    background: var(--card-solid);
}
.meta { flex: 1; min-width: 0; }
.meta-top { display: flex; align-items: center; gap: 6px; min-width: 0; }
.loc-title { font-weight: 700; font-size: 16px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.base-ico { color: var(--accent); flex: none; display: inline-flex; }
.badge {
    flex: none; font-size: 11.5px; line-height: 1; padding: 4px 6px; border-radius: 5px;
    background: var(--raise); border: 1px solid var(--card-border); color: var(--muted); white-space: nowrap;
}
.badge.dst { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 40%, transparent); }
.loc-sub { font-size: 13.5px; color: var(--muted); margin-top: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.loc-extra { font-size: 12px; color: var(--faint); margin-top: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.loc-extra .diff { color: var(--muted); font-weight: 600; }
.clock { width: 104px; flex: none; text-align: right; }
.clock .time { font-family: 'IBM Plex Mono', monospace; font-size: 21px; font-weight: 500; letter-spacing: .02em; white-space: nowrap; }
.clock .time small { font-size: 12px; color: var(--muted); margin-left: 2px; }
.clock .date { font-size: 12.5px; color: var(--muted); margin-top: 2px; white-space: nowrap; }
.clock .rel { display: inline-block; margin-left: 4px; font-size: 10.5px; font-weight: 700; color: var(--accent); }

.row-actions {
    position: absolute; right: 118px; top: 50%; transform: translateY(-50%);
    display: flex; gap: 2px; padding: 2px; border-radius: 8px;
    background: var(--card-solid); border: 1px solid var(--card-border);
    opacity: 0; pointer-events: none; transition: opacity .12s;
}
.rowhead:hover .row-actions, .rowhead:focus-within .row-actions { opacity: 1; pointer-events: auto; }
.row-actions button {
    width: 26px; height: 26px; border: 0; border-radius: 6px; background: transparent;
    display: grid; place-items: center; color: var(--muted); cursor: pointer;
}
.row-actions button:hover { background: var(--raise-2); color: var(--text); }
.row-actions button.del:hover { color: #f87171; }
.grip { cursor: grab; color: var(--faint); flex: none; display: grid; place-items: center; width: 14px; margin-left: -12px; }
.grip:active { cursor: grabbing; }

.strip { display: flex; gap: 4px; padding-left: 6px; }
.cell {
    position: relative; flex: none;
    width: var(--cw, 46px); height: 48px; border-radius: 3px;
    display: grid; place-items: center;
    font-size: var(--cfs, 19px); line-height: 1; cursor: pointer; user-select: none;
    background: var(--c-dark); color: var(--c-dark-ink);
    transition: filter .1s;
}
.cell:hover { filter: brightness(1.12); }
.cell.k-day { background: var(--c-day); }
.cell.k-tw { background: var(--c-tw); }
.cell.k-dark { background: var(--c-dark); }
.cell.k-wk { background: var(--c-wk); }
.cell.k-fr { background: var(--c-fr); }
.cell.k-sl { background: var(--c-sl); }
.cell.k-we { background: var(--c-we); }
.cell.i-day { color: var(--c-day-ink); }
.cell.i-tw { color: var(--c-tw-ink); }
.cell.i-dark { color: var(--c-dark-ink); }
.cell.i-wk { color: var(--c-wk-ink); }
.cell.i-fr { color: var(--c-fr-ink); }
.cell.i-sl { color: var(--c-sl-ink); }
.cell.i-we { color: var(--c-we-ink); }
.cell .h { display: inline-flex; align-items: baseline; }
.cell .hm { font-size: calc(var(--cfs, 19px) - 3px); letter-spacing: -.03em; }
.cell sup { font-size: 10px; font-weight: 600; margin-left: 1px; transform: translateY(-5px); opacity: .85; }
.cell .ap { font-size: 9px; font-weight: 600; margin-left: 1px; opacity: .75; }
.cell.newday { font-size: calc(var(--cfs, 19px) - 4px); font-weight: 700; letter-spacing: .02em; }
.cell .daycap {
    position: absolute; top: calc(100% + 3px); left: 50%; transform: translateX(-50%);
    font-size: 10.5px; font-weight: 500; color: var(--muted); white-space: nowrap; letter-spacing: .03em;
}
.cell .dstmark {
    position: absolute; top: 3px; right: 3px; width: 7px; height: 7px; border-radius: 50%;
    background: var(--warn); box-shadow: 0 0 0 2px var(--card-solid);
}

.overlap-row { padding: 0 0 8px; }
.overlap-row .rowhead { align-self: center; font-size: 12.5px; color: var(--muted); font-weight: 600; }
.overlap-row .cell { height: 8px; border-radius: 4px; background: transparent; cursor: default; }
.overlap-row .cell.on { background: var(--c-wk); }

.colbox {
    position: absolute; top: 0; bottom: 0; z-index: 2; pointer-events: none;
    border: 3px solid var(--now); border-radius: 4px;
}
.colbox.sel { border-color: var(--sel); background: color-mix(in srgb, var(--sel) 10%, transparent); }
.nowline { position: absolute; top: 0; bottom: 0; width: 2px; z-index: 2; pointer-events: none; background: var(--now); opacity: .9; }

.empty { padding: 36px 20px; text-align: center; color: var(--muted); }

.legend { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 6px 18px; padding: 10px 20px 0; font-size: 13.5px; color: var(--muted); }
.legend span { display: inline-flex; align-items: center; gap: 7px; }
.legend i { width: 18px; height: 18px; border-radius: 4px; display: inline-block; }
.legend i.box { background: transparent; border: 3px solid var(--now); }
.legend i.box.sel { border-color: var(--sel); }

/* ---------- lower cards ---------- */
.cols { display: grid; grid-template-columns: 1.15fr 1fr; gap: 16px; }
.cols .card { margin: 0; }
.dur { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.summary, .dstlist { list-style: none; margin: 0; padding: 0; }
.summary li, .dstlist li {
    display: flex; justify-content: space-between; align-items: baseline; gap: 12px;
    padding: 9px 0; border-top: 1px solid var(--card-border); font-size: 14px;
}
.summary li:first-child, .dstlist li:first-child { border-top: 0; }
.summary .who, .dstlist .who { font-weight: 600; min-width: 0; }
.summary .who small, .dstlist .who small { display: block; font-weight: 400; color: var(--muted); font-size: 12.5px; margin-top: 2px; }
.summary .when { font-family: 'IBM Plex Mono', monospace; text-align: right; white-space: nowrap; }
.summary .when small { display: block; font-family: 'IBM Plex Sans', sans-serif; color: var(--muted); font-size: 12px; margin-top: 2px; }
.dstlist .what { text-align: right; font-size: 13px; color: var(--muted); }
.dstlist .what b { color: var(--text); font-weight: 600; }
.dstlist .what .soon { color: var(--warn); font-weight: 600; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }

.foot { color: var(--faint); font-size: 12.5px; line-height: 1.6; margin: 22px 2px 0; max-width: 980px; }

.toast {
    position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px);
    padding: 10px 16px; border-radius: 10px; z-index: 60;
    background: var(--card-solid); border: 1px solid var(--card-border); box-shadow: var(--shadow);
    font-size: 14px; opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- small screens ---------- */
@media (max-width: 980px) {
    .cols { grid-template-columns: 1fr; }
}
@media (max-width: 700px) {
    .topbar { padding: 10px 16px; }
    .wrap { padding: 16px 16px 40px; }
    .card { padding: 14px; }
    .board-card { padding: 14px 0 12px; }
    .board-title { margin: 0 14px 10px; font-size: 17px; }
    .kbd-hint { display: none; }
    .search input { font-size: 15px; height: 46px; }
    .rowhead { width: var(--headw, 168px); padding: 0 8px 0 14px; flex-direction: column; align-items: flex-start; justify-content: center; gap: 4px; }
    .grip { display: none; }
    .meta { width: 100%; }
    .loc-title { font-size: 14px; }
    .loc-sub, .loc-extra { display: none; }
    .badge:not(.abbr) { display: none; }
    .clock { width: auto; text-align: left; display: flex; align-items: baseline; gap: 6px; }
    .clock .time { font-size: 16px; }
    .clock .date { font-size: 11.5px; }
    .row-actions { position: static; transform: none; opacity: 1; pointer-events: auto; background: transparent; border: 0; padding: 0; margin-left: -4px; }
    .row-actions button { width: 24px; height: 22px; }
    .cell { height: 44px; }
    .dstlist li { flex-direction: column; gap: 4px; }
    .dstlist .what { text-align: left; }
    .legend { justify-content: flex-start; padding: 10px 14px 0; font-size: 12.5px; }
}
@media (hover: none) {
    .row-actions { position: static; transform: none; opacity: 1; pointer-events: auto; background: transparent; border: 0; }
}