:root {
    --bg: #111;
    --panel: #151515;
    --ink: #eaeaea;
    --muted: #a8a8a8;
    --line: #262626;
    --accent: #ff6a00;
    --accent-2: #ff842b;
    --shadow: 0 10px 30px rgba(0, 0, 0, .35);
    --radius: 14px;
    --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

    --btn-fg: #111;
    --btn-grad-1: var(--accent);
    --btn-grad-2: var(--accent-2);
    --btn-grad-1-hover: #ff7a1f;
    --btn-grad-2-hover: #ffa366;
}

* {
    box-sizing: border-box
}

html, body {
    height: 100%
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font: 16px/1.45 system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, 'Helvetica Neue', Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

.container {
    max-width: 820px;
    margin: 48px auto;
    padding: 0 20px 32px
}

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 18px;
    border-bottom: 1px solid var(--line);
    padding: 0 0 14px
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px
}

.logo {
    width: 28px;
    height: 28px;
    display: block
}

.titles h1 {
    margin: 0;
    font-size: 26px;
    letter-spacing: .2px;
    line-height: 1.2
}

.sub {
    margin: 2px 0 0;
    color: var(--muted);
    font-size: 14px
}

.card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px clamp(16px, 2.5vw, 24px);
    margin-bottom: 18px;
}

.card-title {
    margin: 0 0 14px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: .4px;
    text-transform: uppercase;
    color: var(--muted)
}

/* LIVE CLOCK */
.clock-card {
    text-align: center
}

.clock {
    font-family: var(--mono);
    font-size: clamp(48px, 10vw, 72px);
    line-height: 1.1;
    letter-spacing: 2px;
    font-variant-numeric: tabular-nums
}

.clock-date {
    margin-top: 4px;
    color: var(--muted);
    font-size: 15px
}

.unix-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px dashed #1f1f1f
}

.unix-label {
    color: var(--muted);
    font-size: 13px
}

.unix {
    font-family: var(--mono);
    font-size: 20px;
    letter-spacing: .5px;
    user-select: all
}

/* WORLD CLOCK */
.tz-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 8px
}

.tz-row {
    display: flex;
    align-items: baseline;
    gap: 8px;
    background: #0f0f0f;
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 10px 12px
}

.tz-row--local {
    border-color: rgba(255, 106, 0, .55)
}

.tz-name {
    flex: 1;
    font-size: 14px;
    color: var(--muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis
}

.tz-row--local .tz-name {
    color: var(--ink)
}

.tz-day {
    font-size: 11px;
    color: var(--accent-2);
    white-space: nowrap
}

.tz-time {
    font-family: var(--mono);
    font-size: 15px;
    font-variant-numeric: tabular-nums
}

.tz-offset {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--muted);
    white-space: nowrap
}

/* CONVERTER */
.in-row {
    display: flex;
    gap: 8px;
    align-items: center
}

input[type="text"], input[type="datetime-local"] {
    flex: 1;
    min-width: 0;
    background: #0f0f0f;
    color: var(--ink);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 10px 12px;
    font-size: 15px;
    font-family: var(--mono);
    outline: none;
    height: 42px;
    color-scheme: dark;
}

input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(255, 106, 0, .15);
}

.outs {
    margin-top: 14px;
    border-top: 1px dashed #1f1f1f;
    padding-top: 12px;
    display: grid;
    gap: 8px
}

.out-row {
    display: flex;
    align-items: center;
    gap: 10px
}

.out-label {
    flex: 0 0 92px;
    font-size: 13px;
    color: var(--muted)
}

.out {
    flex: 1;
    min-width: 0;
    font-family: var(--mono);
    font-size: 14px;
    letter-spacing: .2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    cursor: copy;
    user-select: all
}

.out.copied {
    color: var(--accent-2)
}

.hint {
    margin: .5rem 0 0;
    color: #ffb199;
    font-size: 13px
}

.note {
    margin: 10px 0 0;
    color: var(--muted);
    font-size: 12px
}

/* BUTTONS */
.btn {
    background: #1a1a1a;
    border: 1px solid var(--line);
    color: var(--ink);
    padding: 10px 14px;
    border-radius: 10px;
    font-size: 14px;
    cursor: pointer;
    transition: transform .06s ease,
    border-color .15s ease,
    background .15s ease,
    box-shadow .15s ease;
}

.btn:hover {
    background: #202020;
    border-color: #2e2e2e
}

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

.btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px #111, 0 0 0 4px rgba(255, 106, 0, .45);
}

.btn-sm {
    padding: 6px 10px;
    font-size: 12px
}

.btn.copied {
    border-color: var(--accent);
    color: var(--accent-2)
}

.btn-ghost {
    background: #131313;
    border-color: #232323;
    color: var(--muted);
}

.btn-ghost:hover {
    background: #171717;
    border-color: #2a2a2a;
    color: var(--ink)
}

.lang {
    flex: 0 0 auto;
    min-width: 48px
}

@media (max-width: 560px) {
    .out-label {
        flex-basis: 72px
    }

    .in-row {
        flex-wrap: wrap
    }

    .in-row input {
        flex-basis: 100%
    }

    .in-row .btn {
        flex: 1
    }
}

@media (prefers-reduced-motion: reduce) {
    .btn {
        transition: none
    }
}