/* ==========================================================================
   Variant 02 "HUD" — dense sci-fi console. Near-black blue ground, cyan
   accent, sharp 2px corners, monospace numerals. In the style of triff.tools.

   Typography is tuned for readability rather than maximum sci-fi: an upright
   technical sans, restrained letter-spacing, and uppercase kept to short
   labels only. Swap the UI face on --font-ui below; alternatives that hold
   the console feel:

     'IBM Plex Sans'     current. Technical, open apertures, pairs with Plex Mono.
     'Inter'             the most neutral and the most legible at small sizes.
     'Chakra Petch'      squarer and more overtly sci-fi, still readable.
     'Barlow Condensed'  the original condensed look. Tightest, hardest to read.

   Change the Google Fonts <link> in index.html to match whichever you pick.
   ========================================================================== */

:root {
    --bg: #05070b;
    --panel: #0b0f16;
    --panel-head: #0f1520;
    --panel-hover: #131b28;
    --line: #1b2534;
    --line-bright: #2b3a4d;
    --text: #e6eefb;
    --muted: #a9b6c8;
    --faint: #8697ab;
    --accent: #6cc2ff;
    --accent-bright: #9ad8ff;
    --accent-soft: rgba(108, 194, 255, 0.10);
    --amber: #ecc46a;
    --font-ui: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
    --mono: 'IBM Plex Mono', ui-monospace, Menlo, monospace;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background-color: var(--bg);
    background-image:
        linear-gradient(rgba(108, 194, 255, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(108, 194, 255, 0.025) 1px, transparent 1px);
    background-size: 44px 44px;
    color: var(--text);
    font-family: var(--font-ui);
    font-size: 15px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

.hud {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 18px 32px;
}

/* --- Top bar ------------------------------------------------------------ */

.hud-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    padding: 18px 0 14px;
    margin-bottom: 18px;
    border-bottom: 1px solid var(--line-bright);
    box-shadow: 0 1px 0 rgba(108, 194, 255, 0.14);
}

.hud-brand {
    display: flex;
    align-items: center;
    gap: 11px;
    font-size: 21px;
    font-weight: 600;
    letter-spacing: 0.01em;
}

.hud-brand em {
    font-style: normal;
    font-weight: 400;
    color: var(--faint);
}

.hud-glyph {
    width: 4px;
    height: 21px;
    background-color: var(--accent);
    box-shadow: 0 0 10px var(--accent);
}

.hud-status {
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.02em;
    color: var(--faint);
}

/* --- Panels ------------------------------------------------------------- */

.hud-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 14px;
    align-items: start;
}

.hud-row-top { grid-template-columns: 1.35fr 1fr; }

.panel {
    position: relative;
    background-color: var(--panel);
    border: 1px solid var(--line);
    border-radius: 2px;
}

/* Corner brackets, the HUD tell */
.panel::before,
.panel::after {
    content: '';
    position: absolute;
    width: 9px;
    height: 9px;
    border-color: var(--accent);
    opacity: 0.75;
    pointer-events: none;
}

.panel::before { top: -1px; left: -1px; border-top: 2px solid; border-left: 2px solid; }
.panel::after { bottom: -1px; right: -1px; border-bottom: 2px solid; border-right: 2px solid; }

.panel-label {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 14px;
    background-color: var(--panel-head);
    border-bottom: 1px solid var(--line);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
}

.panel-label em {
    font-style: normal;
    font-weight: 400;
    letter-spacing: 0.02em;
    text-transform: none;
    color: var(--faint);
    font-size: 12px;
}

.panel-body { padding: 16px 14px; }
.panel-body-flush { padding: 0; }

.panel-count .panel-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 18px;
    min-height: 100%;
}

/* --- Shared-time banner ------------------------------------------------- */

.shared-banner {
    display: none; /* script.js switches this to flex */
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    padding: 11px 14px;
    margin-bottom: 14px;
    background-color: var(--accent-soft);
    border: 1px solid rgba(108, 194, 255, 0.4);
    border-left: 3px solid var(--accent);
    border-radius: 2px;
}

.shared-banner-text {
    font-size: 14px;
    color: var(--muted);
}

.shared-banner-text strong {
    font-family: var(--mono);
    font-weight: 500;
    color: var(--accent-bright);
    margin-left: 6px;
}

/* --- Fields ------------------------------------------------------------- */

.field-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 13px;
}

.field-span { grid-column: 1 / -1; }

.field label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 7px;
    font-size: 13px;
    font-weight: 500;
    color: var(--muted);
}

.unit {
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.04em;
    color: var(--accent);
    border: 1px solid rgba(108, 194, 255, 0.35);
    border-radius: 2px;
    padding: 1px 5px;
}

input {
    width: 100%;
    padding: 10px 12px;
    background-color: #070a10;
    color: var(--text);
    border: 1px solid var(--line-bright);
    border-radius: 2px;
    font-family: var(--mono);
    font-size: 15px;
    cursor: pointer;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input:hover { border-color: #3b4d64; }

input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 1px var(--accent), 0 0 14px rgba(108, 194, 255, 0.25);
}

/* --- Countdown ---------------------------------------------------------- */

.countdown {
    font-family: var(--mono);
    font-size: 29px;
    font-weight: 500;
    text-align: center;
    min-height: 42px;
}

.countdown-future { color: var(--accent-bright); text-shadow: 0 0 18px rgba(108, 194, 255, 0.4); }
.countdown-past { color: var(--faint); }
.countdown-now { color: var(--amber); text-shadow: 0 0 18px rgba(236, 196, 106, 0.4); }

/* --- Controls ----------------------------------------------------------- */

.quick-adjust {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 6px;
    margin-top: 15px;
}

.chip {
    background-color: transparent;
    color: var(--muted);
    border: 1px solid var(--line-bright);
    border-radius: 2px;
    padding: 8px 4px;
    font-family: var(--mono);
    font-size: 13px;
    cursor: pointer;
    transition: color 0.15s ease, border-color 0.15s ease, background-color 0.15s ease;
}

.chip:hover {
    color: var(--accent-bright);
    border-color: var(--accent);
    background-color: var(--accent-soft);
}

.chip:active { transform: translateY(1px); }

.control-buttons { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }

.btn {
    border-radius: 2px;
    padding: 9px 18px;
    font-family: var(--font-ui);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.02em;
    cursor: pointer;
    transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
    background-color: rgba(108, 194, 255, 0.16);
    border: 1px solid var(--accent);
    color: var(--accent-bright);
}

.btn-primary:hover { background-color: var(--accent); color: #04080e; }

.btn-ghost {
    background-color: transparent;
    border: 1px solid var(--line-bright);
    color: var(--muted);
}

.btn-ghost:hover { border-color: var(--muted); color: var(--text); }

/* --- Tables ------------------------------------------------------------- */

.grid { width: 100%; border-collapse: collapse; font-size: 14px; }

.grid th {
    text-align: left;
    padding: 9px 12px;
    background-color: #080c12;
    border-bottom: 1px solid var(--line);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--faint);
}

.grid td {
    padding: 10px 12px;
    border-bottom: 1px solid #131a25;
    vertical-align: middle;
}

.grid tbody tr:last-child td { border-bottom: none; }

#discord-tbody tr { cursor: pointer; transition: background-color 0.12s ease; }
#discord-tbody tr:hover { background-color: var(--panel-hover); }
#discord-tbody tr:hover td:first-child { box-shadow: inset 2px 0 0 var(--accent); }
#discord-tbody tr:active { background-color: #18222f; }

.format-icon { width: 32px; color: var(--faint); }
.format-icon svg { display: block; }
#discord-tbody tr:hover .format-icon { color: var(--accent); }

.syntax { font-family: var(--mono); font-size: 13px; color: var(--accent); white-space: nowrap; }
.result { color: var(--text); }
.raw-unix { font-family: var(--mono); }

.timezone-grid td:last-child {
    font-family: var(--mono);
    font-size: 13px;
    color: var(--muted);
    white-space: nowrap;
}

#timezone-tbody tr.local-timezone td {
    background-color: var(--accent-soft);
    color: var(--accent-bright);
}

#timezone-tbody tr.local-timezone td:first-child {
    box-shadow: inset 2px 0 0 var(--accent);
    font-weight: 600;
}

#timezone-tbody tr[data-region="utc"] td { color: var(--amber); font-weight: 600; }

/* --- Toast -------------------------------------------------------------- */

.copy-message {
    display: none; /* script.js switches this to block */
    position: fixed;
    top: 18px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 50;
    background-color: var(--accent);
    color: #04080e;
    padding: 9px 20px;
    border-radius: 2px;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 0 24px rgba(108, 194, 255, 0.45);
}

/* --- Footer ------------------------------------------------------------- */

.site-footer {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 22px;
    padding-top: 14px;
    border-top: 1px solid var(--line);
    font-size: 13px;
    color: var(--faint);
}

.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--accent-bright); }

/* --- Flatpickr ---------------------------------------------------------- */

.flatpickr-calendar {
    background-color: var(--panel);
    border: 1px solid var(--line-bright);
    border-radius: 2px;
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.8);
    font-family: var(--font-ui);
}

.flatpickr-months { background-color: var(--panel-head); border-bottom: 1px solid var(--line); }
.flatpickr-months .flatpickr-month,
.flatpickr-current-month input.cur-year,
.flatpickr-current-month .flatpickr-monthDropdown-months { color: var(--text); fill: var(--text); background: transparent; }
.flatpickr-months .flatpickr-prev-month,
.flatpickr-months .flatpickr-next-month { color: var(--muted); fill: var(--muted); }
.flatpickr-months .flatpickr-prev-month:hover svg,
.flatpickr-months .flatpickr-next-month:hover svg { fill: var(--accent); }
.flatpickr-weekdays, span.flatpickr-weekday { background-color: var(--panel-head); color: var(--faint); }
.flatpickr-day { color: var(--text); border-radius: 2px; }
.flatpickr-day:hover { background-color: var(--panel-hover); border-color: var(--panel-hover); }
.flatpickr-day.today { border-color: var(--accent); }
.flatpickr-day.selected, .flatpickr-day.selected:hover { background-color: var(--accent); border-color: var(--accent); color: #04080e; }
.flatpickr-day.flatpickr-disabled, .flatpickr-day.prevMonthDay, .flatpickr-day.nextMonthDay { color: #4b5a6e; }
.flatpickr-time { border-top: 1px solid var(--line); }
.flatpickr-time input, .flatpickr-time .flatpickr-am-pm { color: var(--text); background: transparent; font-family: var(--mono); }
.flatpickr-time input:hover, .flatpickr-time input:focus,
.flatpickr-time .flatpickr-am-pm:hover, .flatpickr-time .flatpickr-am-pm:focus { background-color: var(--panel-hover); }
.flatpickr-time .numInputWrapper span.arrowUp:after { border-bottom-color: var(--accent); }
.flatpickr-time .numInputWrapper span.arrowDown:after { border-top-color: var(--accent); }

/* --- Responsive --------------------------------------------------------- */

@media (max-width: 900px) {
    .hud-row, .hud-row-top { grid-template-columns: 1fr; }
    .countdown { font-size: 26px; }
}

@media (max-width: 520px) {
    .field-grid { grid-template-columns: 1fr; }
    .quick-adjust { grid-template-columns: repeat(3, 1fr); }
    .grid { font-size: 13px; }
    .grid td, .grid th { padding: 9px 7px; }
    .syntax { font-size: 12px; }
    .hud-brand { font-size: 19px; }
    .site-footer { justify-content: center; text-align: center; }
}

/* --- Explanatory prose panels ------------------------------------------- */

.prose {
    max-width: 68ch;
}

.prose p {
    margin: 0 0 14px;
    color: var(--text);
}

.prose p:last-child {
    margin-bottom: 0;
}

.prose h3 {
    margin: 22px 0 7px;
    font-size: 15px;
    font-weight: 600;
    color: var(--accent-bright);
}

.prose h3:first-child {
    margin-top: 0;
}

.prose code {
    font-family: var(--mono);
    font-size: 13px;
    color: var(--accent);
    background-color: var(--accent-soft);
    border-radius: 2px;
    padding: 1px 5px;
    white-space: nowrap;
}

/* Explains what Copy link actually does, for a first-time visitor */
.control-hint {
    margin: 0;
    max-width: 44ch;
    text-align: center;
    font-size: 13px;
    line-height: 1.45;
    color: var(--faint);
}