/* IP/WATCH
   Two surfaces share one set of fonts:
   - the tracker page is a dark signage "board" whose colour follows the user status
   - login, upload and admin are a warm paper "ledger"                              */

* {
    box-sizing: border-box;
}

:root {
    --font-display: 'Big Shoulders Display', 'Arial Narrow', Impact, sans-serif;
    --font-mono: 'IBM Plex Mono', ui-monospace, Menlo, Consolas, monospace;
    --font-body: 'IBM Plex Sans', system-ui, sans-serif;

    --paper: #efe9dd;
    --paper-raised: #f8f4ea;
    --ink: #1a1814;
    --ink-soft: #6b6458;
    --rule: #cfc6b4;
    --signal: #d9480f;
}


/* =====================================================================
   TRACKER BOARD
   ===================================================================== */

body.page-tracker {
    --accent: #9aa7b4;
    --text: #f4efe6;
    --text-soft: rgba(244, 239, 230, 0.62);
    --line: rgba(244, 239, 230, 0.18);

    margin: 0;
    min-height: 100dvh;
    font-family: var(--font-body);
    color: var(--text);
    background: var(--colour-unknown);
    transition: background-color 0.4s ease;
}

/* Status colours: the background comes from config.py, the accent (lamp, rules, buttons) is set here. */
body.group-allowed { background: var(--colour-allowed); --accent: #5ff0b0; }
body.group-non_allowed { background: var(--colour-non-allowed); --accent: #ff6b5c; }
body.group-unused { background: var(--colour-unused); --accent: #ffb627; }
body.group-unknown { background: var(--colour-unknown); --accent: #9aa7b4; }

/* Faint scan-lines and a soft glow from the top, behind everything. */
body.page-tracker::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(120% 60% at 50% -10%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 70%),
        repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 4px);
}

/* Alarm: the whole board flashes between two tones until it is touched. */
body.alarm {
    animation: alarm-flash 0.6s steps(1, end) infinite;
    --accent: #ffffff;
}

@keyframes alarm-flash {
    0%, 49% { background: var(--colour-alarm-bright); }
    50%, 100% { background: var(--colour-alarm-dark); }
}


.board {
    position: relative;
    width: 100%;
    max-width: 62rem;
    min-height: 100dvh;
    margin: 0 auto;
    padding: max(1.1rem, env(safe-area-inset-top)) 1.25rem max(1.1rem, env(safe-area-inset-bottom));
    display: flex;
    flex-direction: column;
}


/* ----- top bar: wordmark and status lamp ----- */

.bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid var(--line);
}

.brand {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.35rem;
    letter-spacing: 0.12em;
}

.brand i {
    font-style: normal;
    color: var(--accent);
    margin: 0 0.1em;
}

.status {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.lamp {
    width: 0.7rem;
    height: 0.7rem;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 28%, transparent),
                0 0 14px var(--accent);
    animation: lamp-pulse 2.4s ease-in-out infinite;
}

@keyframes lamp-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.45; }
}


/* ----- hero: the address itself ----- */

.hero {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.7rem;
    padding: 1.5rem 0;
}

.label {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--text-soft);
}

/* tracker.js sets the font size so the address spans the full width. */
.ip {
    width: 100%;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 4rem;
    line-height: 0.9;
    letter-spacing: 0.01em;
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
}

.ip.shake {
    animation: ip-shake 0.4s ease-in-out 2;
}

@keyframes ip-shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-6px); }
    75% { transform: translateX(6px); }
}

.name {
    display: inline-block;
    align-self: flex-start;
    max-width: 100%;
    padding: 0.35rem 0.8rem 0.3rem;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(1.4rem, 6vw, 2.3rem);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--accent);
    border: 1.5px solid var(--accent);
    overflow-wrap: anywhere;
}

/* Phones: the box is at least half the screen and grows with the name up to the full width.
   tracker.js shrinks the font so even a very long name fits on one line where it can. */
@media (max-width: 640px) {
    .name {
        min-width: 50%;
        white-space: nowrap;
    }

    .name.wrap {
        white-space: normal;
    }
}


/* ----- assign control (only for unassigned addresses) ----- */

.assign-box {
    display: flex;
    gap: 0.5rem;
    width: 100%;
    max-width: 26rem;
    margin-bottom: 1.1rem;
}

.assign-box[hidden] {
    display: none;
}

.assign-box select {
    flex: 1;
    min-width: 0;
}

.assign-box select,
.assign-box button {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    padding: 0.8rem 0.9rem;
    border-radius: 0;
    color: var(--text);
    background: rgba(0, 0, 0, 0.28);
    border: 1px solid var(--line);
}

.assign-box select option {
    color: var(--ink);
}

.assign-box button {
    cursor: pointer;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink);
    background: var(--accent);
    border-color: var(--accent);
    font-weight: 500;
}

.assign-box button:active {
    transform: translateY(1px);
}


/* ----- readings: count and the two dates ----- */

.cells {
    display: grid;
    grid-template-columns: 0.7fr 1.15fr 1.15fr;
    margin: 0;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.cell {
    padding: 0.8rem 0.7rem 0.8rem 0;
}

.cell + .cell {
    padding-left: 0.8rem;
    border-left: 1px solid var(--line);
}

.cell dt {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-soft);
    margin-bottom: 0.35rem;
}

.cell dd {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.45;
}

.cell dd .time {
    display: block;
    color: var(--text-soft);
}

.cell .big {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 2.3rem;
    line-height: 1;
}


/* ----- actions ----- */

.actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-top: 1.1rem;
}

.refresh-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.85rem 1.4rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text);
    background: transparent;
    border: 1.5px solid var(--accent);
    border-radius: 0;
    cursor: pointer;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.refresh-btn svg {
    width: 1.05rem;
    height: 1.05rem;
}

.refresh-btn:hover {
    background: var(--accent);
    color: var(--ink);
}

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

.refresh-btn.clicked svg {
    animation: refresh-spin 0.5s ease;
}

@keyframes refresh-spin {
    to { transform: rotate(360deg); }
}

.tracker-nav {
    display: flex;
    gap: 1.2rem;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.tracker-nav a {
    color: var(--text-soft);
    text-decoration: none;
    padding-bottom: 2px;
    border-bottom: 1px solid transparent;
}

.tracker-nav a:hover {
    color: var(--text);
    border-bottom-color: var(--accent);
}


/* ----- start screen: the first tap unlocks browser audio ----- */

.overlay {
    position: fixed;
    inset: 0;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.6rem;
    background: #14130f;
    color: #f4efe6;
    cursor: pointer;
    text-align: center;
    padding: 1.5rem;
}

.overlay-ring {
    position: relative;
    width: 7rem;
    height: 7rem;
    border-radius: 50%;
    border: 1.5px solid #ffb627;
    display: flex;
    align-items: center;
    justify-content: center;
}

.overlay-ring::before,
.overlay-ring::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 1.5px solid #ffb627;
    animation: ring-out 2.4s ease-out infinite;
}

.overlay-ring::after {
    animation-delay: 1.2s;
}

.overlay-ring span {
    width: 1.1rem;
    height: 1.1rem;
    border-radius: 50%;
    background: #ffb627;
    box-shadow: 0 0 22px #ffb627;
}

@keyframes ring-out {
    from { transform: scale(1); opacity: 0.8; }
    to { transform: scale(2.1); opacity: 0; }
}

.overlay-title {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: clamp(2.4rem, 11vw, 4.2rem);
    letter-spacing: 0.14em;
    line-height: 1;
}

.overlay-title i {
    font-style: normal;
    color: #ffb627;
}

.overlay-hint {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: rgba(244, 239, 230, 0.6);
}


/* =====================================================================
   LEDGER (login, upload)
   ===================================================================== */

body.page-plain {
    margin: 0;
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.55;
    background: var(--paper);
    color: var(--ink);
}

.plain-bar {
    background: var(--ink);
    color: var(--paper);
}

.plain-bar-inner {
    max-width: 52rem;
    margin: 0 auto;
    padding: 0.85rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.plain-brand {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.3rem;
    letter-spacing: 0.12em;
    color: var(--paper);
    text-decoration: none;
}

.plain-brand i {
    font-style: normal;
    color: #ffb627;
    margin: 0 0.1em;
}

.plain-nav {
    display: flex;
    gap: 1.2rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.plain-nav a {
    color: rgba(239, 233, 221, 0.7);
    text-decoration: none;
}

.plain-nav a:hover {
    color: #ffb627;
}

.plain-container {
    max-width: 52rem;
    margin: 0 auto;
    padding: 2.2rem 1.25rem 4rem;
}

.plain-container h1 {
    margin: 0 0 0.4rem;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: clamp(2.2rem, 8vw, 3.4rem);
    line-height: 1;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.plain-container h2 {
    margin: 0 0 0.6rem;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.6rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.eyebrow {
    margin: 0 0 0.7rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--signal);
}

.lede {
    max-width: 36rem;
    color: var(--ink-soft);
}

.plain-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 1.6rem 0;
    padding: 1.4rem;
    max-width: 30rem;
    background: var(--paper-raised);
    border: 1.5px solid var(--ink);
    box-shadow: 6px 6px 0 var(--ink);
}

.plain-form.wide {
    max-width: none;
}

.plain-form label {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-soft);
}

.plain-form input[type="password"],
.plain-form input[type="text"] {
    font-family: var(--font-mono);
    font-size: 1.05rem;
    padding: 0.75rem 0.85rem;
    color: var(--ink);
    background: #fff;
    border: 1.5px solid var(--ink);
    border-radius: 0;
}

.plain-form input[type="file"] {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    padding: 1.4rem 1rem;
    background: repeating-linear-gradient(-45deg, transparent 0 8px, rgba(26, 24, 20, 0.04) 8px 16px);
    border: 1.5px dashed var(--ink);
    cursor: pointer;
}

.plain-form input:focus,
.plain-form button:focus-visible {
    outline: 3px solid var(--signal);
    outline-offset: 2px;
}

.plain-form button {
    padding: 0.9rem 1rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--paper);
    background: var(--ink);
    border: 1.5px solid var(--ink);
    border-radius: 0;
    cursor: pointer;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

.plain-form button:hover {
    background: var(--signal);
    border-color: var(--signal);
}

.error-message {
    margin: 0;
    padding: 0.6rem 0.8rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: #7f1d1d;
    background: #f6d9d3;
    border-left: 4px solid #b91c1c;
}

.result {
    margin-top: 2.4rem;
}

.result-summary {
    display: flex;
    gap: 2rem;
    margin: 0 0 1.2rem;
}

.result-summary div {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-soft);
}

.result-summary strong {
    display: block;
    font-family: var(--font-display);
    font-size: 3rem;
    line-height: 1;
    letter-spacing: 0;
    color: var(--ink);
}

.table-scroll {
    overflow-x: auto;
    border: 1.5px solid var(--ink);
    background: var(--paper-raised);
}

.table-scroll table {
    border-collapse: collapse;
    width: 100%;
    font-family: var(--font-mono);
    font-size: 0.82rem;
}

.table-scroll th {
    padding: 0.55rem 0.8rem;
    text-align: left;
    font-weight: 500;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    font-size: 0.68rem;
    color: var(--paper);
    background: var(--ink);
}

.table-scroll td {
    padding: 0.5rem 0.8rem;
    border-bottom: 1px solid var(--rule);
}