/* ==========================================================================
   Spectrum Scryer — Wi-Fi & RF neighbourhood viewer
   Dark instrument-panel UI, friendly edges.
   ========================================================================== */

:root {
    --bg: #060910;
    --bg-2: #0b111c;
    --surface: #101724cc;
    --surface-solid: #111827;
    --border: #1f2a3d;
    --border-soft: #17202f;
    --text: #e9eef8;
    --text-soft: #9baaC4;
    --text-faint: #64728b;
    --accent: #38bdf8;
    --accent-2: #a78bfa;
    --good: #34d399;
    --warn: #fbbf24;
    --hot: #fb7185;
    --radius: 16px;
    --radius-sm: 10px;
    --font: 'Space Grotesk', system-ui, -apple-system, sans-serif;
    --mono: 'JetBrains Mono', ui-monospace, Menlo, monospace;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font);
    color: var(--text);
    background:
        radial-gradient(900px 520px at 12% -5%, rgba(56, 189, 248, .14), transparent 60%),
        radial-gradient(760px 560px at 92% 2%, rgba(167, 139, 250, .13), transparent 55%),
        var(--bg);
    background-attachment: fixed;
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.wrap {
    width: min(100% - 2rem, 1040px);
    margin: 0 auto;
    padding: clamp(1.5rem, 4vw, 3rem) 0 3rem;
    display: flex;
    flex-direction: column;
    gap: 1.4rem;
}

[hidden] {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

/* ---- Hero ---- */
.hero {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .5rem;
    padding: 1rem 0 .25rem;
}

.hero-mark {
    font-size: clamp(2.5rem, 8vw, 3.6rem);
    filter: drop-shadow(0 0 22px rgba(56, 189, 248, .5));
    animation: pulse 3.6s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.07);
    }
}

.hero h1 {
    font-size: clamp(2rem, 6vw, 3rem);
    letter-spacing: -.02em;
    background: linear-gradient(120deg, var(--accent), var(--accent-2) 70%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.lede {
    max-width: 62ch;
    color: var(--text-soft);
}

.lede strong {
    color: var(--text);
}

/* ---- Cards ---- */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: clamp(1rem, 3vw, 1.6rem);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    backdrop-filter: blur(8px);
}

.card-head {
    display: flex;
    gap: .9rem;
    align-items: flex-start;
}

.card-head h2 {
    font-size: 1.25rem;
    letter-spacing: -.01em;
}

.card-sub {
    color: var(--text-soft);
    font-size: .95rem;
    margin-top: .2rem;
}

.step-badge {
    flex: 0 0 auto;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-weight: 700;
    color: #051019;
    background: linear-gradient(140deg, var(--accent), var(--accent-2));
}

/* ---- Buttons ---- */
.btn {
    font: inherit;
    font-weight: 600;
    border: 1px solid transparent;
    border-radius: 999px;
    padding: .6rem 1.15rem;
    cursor: pointer;
    color: var(--text);
    background: #16203100;
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    transition: transform .12s ease, background .2s ease, border-color .2s ease;
}

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

.btn:focus-visible,
.chip:focus-visible,
.os-tab:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #04121c;
}

.btn-ghost {
    border-color: var(--border);
    background: #10192880;
    color: var(--text-soft);
}

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

.btn-sm {
    padding: .4rem .85rem;
    font-size: .88rem;
}

.btn-row {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
}

/* ---- OS tabs ---- */
.os-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
}

.os-tab {
    font: inherit;
    font-weight: 600;
    font-size: .9rem;
    padding: .45rem 1rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: #0d1524;
    color: var(--text-soft);
    cursor: pointer;
}

.os-tab.is-active {
    background: linear-gradient(135deg, rgba(56, 189, 248, .22), rgba(167, 139, 250, .22));
    border-color: var(--accent);
    color: var(--text);
}

.os-panel {
    border: 1px dashed var(--border);
    border-radius: var(--radius-sm);
    padding: .9rem;
    display: flex;
    flex-direction: column;
    gap: .6rem;
    background: #0a111d80;
}

.os-where,
.os-note {
    font-size: .9rem;
    color: var(--text-soft);
}

.os-note {
    color: var(--text-faint);
}

.cmd-row {
    display: flex;
    gap: .6rem;
    align-items: center;
    flex-wrap: wrap;
}

.cmd {
    font-family: var(--mono);
    font-size: .88rem;
    background: #060b14;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: .55rem .8rem;
    color: var(--accent);
    flex: 1 1 260px;
    overflow-x: auto;
    white-space: pre;
}

/* ---- Inputs ---- */
.field-label {
    font-size: .9rem;
    font-weight: 600;
    color: var(--text-soft);
}

.scan-input {
    font-family: var(--mono);
    font-size: .85rem;
    min-height: 150px;
    resize: vertical;
    width: 100%;
    padding: .8rem;
    color: var(--text);
    background: #070d17;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.select,
.search-box input {
    font: inherit;
    color: var(--text);
    background: #070d17;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: .55rem .75rem;
    width: 100%;
}

.parse-msg {
    font-size: .92rem;
    min-height: 1.4em;
    color: var(--text-soft);
}

.parse-msg.is-ok {
    color: var(--good);
}

.parse-msg.is-bad {
    color: var(--hot);
}

/* ---- Stats ---- */
.stat-strip {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
    gap: .6rem;
}

.stat-strip li {
    background: #0b1220;
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    padding: .6rem .7rem;
    display: flex;
    flex-direction: column;
}

.stat-num {
    font-family: var(--mono);
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--accent);
}

.stat-label {
    font-size: .78rem;
    color: var(--text-faint);
    text-transform: uppercase;
    letter-spacing: .06em;
}

/* ---- Filters ---- */
.filters {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
    align-items: center;
}

.search-box {
    flex: 1 1 220px;
}

.chip-row {
    display: flex;
    gap: .35rem;
    flex-wrap: wrap;
}

.chip {
    font: inherit;
    font-size: .85rem;
    font-weight: 600;
    padding: .35rem .8rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: #0d1524;
    color: var(--text-soft);
    cursor: pointer;
}

.chip.is-active {
    background: linear-gradient(135deg, rgba(56, 189, 248, .25), rgba(167, 139, 250, .25));
    border-color: var(--accent);
    color: var(--text);
}

/* ---- AP list ---- */
.ap-list {
    display: flex;
    flex-direction: column;
    gap: .55rem;
}

.ap {
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    background: #0a1120;
    padding: .7rem .85rem;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: .5rem .9rem;
    align-items: center;
}

.ap.is-hidden-net {
    border-color: #4c3a6a;
    background: linear-gradient(90deg, rgba(167, 139, 250, .1), #0a1120 45%);
}

.ap-main {
    min-width: 0;
}

.ap-name {
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: .45rem;
    flex-wrap: wrap;
}

.ap-name .ghost {
    color: var(--accent-2);
    font-style: italic;
}

.ap-meta {
    font-family: var(--mono);
    font-size: .78rem;
    color: var(--text-faint);
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-top: .2rem;
}

.badge {
    font-family: var(--font);
    font-size: .7rem;
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
    padding: .1rem .45rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    color: var(--text-soft);
}

.badge-hidden {
    color: var(--accent-2);
    border-color: #6d5bab;
}

.badge-open {
    color: var(--hot);
    border-color: #7d3a48;
}

.badge-band {
    color: var(--accent);
    border-color: #23566f;
}

.ap-signal {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: .25rem;
    min-width: 120px;
}

.ap-rssi {
    font-family: var(--mono);
    font-size: .95rem;
    font-weight: 600;
}

.bar {
    width: 110px;
    height: 7px;
    border-radius: 999px;
    background: #16203a;
    overflow: hidden;
}

.bar span {
    display: block;
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--hot), var(--warn) 45%, var(--good));
}

.ap-sub {
    grid-column: 1 / -1;
    border-top: 1px dashed var(--border-soft);
    padding-top: .45rem;
    display: flex;
    flex-direction: column;
    gap: .25rem;
}

.ap-sub-row {
    font-family: var(--mono);
    font-size: .76rem;
    color: var(--text-soft);
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
}

.empty-msg {
    color: var(--text-faint);
    font-size: .92rem;
    text-align: center;
    padding: .8rem;
}

/* ---- Chart ---- */
.chart-shell,
.spark-shell {
    background: #070d17;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: .5rem;
}

#chart,
#spark {
    display: block;
    width: 100%;
    height: auto;
}

.advice {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
}

.advice-pill {
    font-size: .85rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: .35rem .8rem;
    background: #0d1524;
    color: var(--text-soft);
}

.advice-pill strong {
    color: var(--good);
}

/* ---- Locator ---- */
.locator {
    display: grid;
    grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
    gap: 1.2rem;
    align-items: center;
}

@media (max-width: 700px) {
    .locator {
        grid-template-columns: 1fr;
    }
}

.dial-shell {
    position: relative;
    display: grid;
    place-items: center;
}

#dial {
    width: 100%;
    max-width: 260px;
    height: auto;
}

.dial-centre {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    pointer-events: none;
}

.dial-rssi {
    font-family: var(--mono);
    font-size: 2rem;
    font-weight: 600;
}

.dial-unit {
    font-size: .75rem;
    color: var(--text-faint);
    letter-spacing: .08em;
    text-transform: uppercase;
}

.locator-side {
    display: flex;
    flex-direction: column;
    gap: .7rem;
}

.verdict {
    font-size: 1.05rem;
    font-weight: 600;
}

.readouts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: .5rem;
}

.readouts div {
    background: #0b1220;
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    padding: .45rem .6rem;
}

.readouts dt {
    font-size: .72rem;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--text-faint);
}

.readouts dd {
    font-family: var(--mono);
    font-size: .95rem;
}

.slider {
    display: flex;
    flex-direction: column;
    gap: .3rem;
    font-size: .85rem;
    color: var(--text-soft);
}

.slider output {
    font-family: var(--mono);
    color: var(--accent);
}

.slider input[type='range'] {
    width: 100%;
    accent-color: var(--accent);
}

.fineprint {
    font-size: .82rem;
    color: var(--text-faint);
}

/* ---- Live boxes ---- */
.live-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: .8rem;
}

.live-box {
    background: #0a1120;
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    padding: .85rem;
    display: flex;
    flex-direction: column;
    gap: .55rem;
}

.live-box h3 {
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: .4rem;
}

.tag {
    font-size: .68rem;
    font-weight: 700;
    letter-spacing: .05em;
    text-transform: uppercase;
    color: var(--accent);
    border: 1px solid #23566f;
    border-radius: 999px;
    padding: .05rem .45rem;
}

.live-sub {
    font-size: .87rem;
    color: var(--text-soft);
}

.live-msg {
    font-size: .85rem;
    color: var(--text-faint);
    min-height: 1.2em;
}

.ble-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: .35rem;
}

.ble-list li {
    font-family: var(--mono);
    font-size: .8rem;
    background: #0b1322;
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    padding: .4rem .55rem;
    display: flex;
    justify-content: space-between;
    gap: .6rem;
}

/* ---- FAQ ---- */
.faq {
    display: flex;
    flex-direction: column;
    gap: .45rem;
}

.faq details {
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    background: #0a1120;
    padding: .6rem .8rem;
}

.faq summary {
    cursor: pointer;
    font-weight: 600;
}

.faq p {
    margin-top: .5rem;
    color: var(--text-soft);
    font-size: .92rem;
}

/* ---- Footer ---- */
.foot {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: .5rem;
    font-size: .85rem;
    color: var(--text-faint);
    padding-top: .5rem;
}

.foot a {
    color: var(--accent);
    text-decoration: none;
}

.foot a:hover {
    text-decoration: underline;
}

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation: none !important;
        transition: none !important;
    }
}