/* ============================================================
   SNOWSKY TINY A CONTROLLER - STYLES
   ============================================================ */

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2a2a2a;
    --accent: #CF1A37;
    --accent-dim: #a01528;
    --blue: #0066FF;
    --green: #00FF00;
    --text-primary: #ffffff;
    --text-secondary: #aaaaaa;
    --border: #333333;
}

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

body {
    font-family: Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
}

/* ---------- Top banner ---------- */

.top-banner {
    background: var(--accent);
    padding: 0 20px;
    height: 48px;
    display: flex;
    align-items: center;
    gap: 15px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    position: sticky;
    top: 0;
    z-index: 100;
}

.banner-title {
    font-size: 1.1em;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 2px;
    flex: 1;
    line-height: 1;
}

.connection-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75em;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.indicator-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #666;
}

.connection-indicator.connected .indicator-dot { background: var(--green); }
.indicator-text { color: #aaa; white-space: nowrap; }
.connection-indicator.connected .indicator-text { color: var(--green); }

button:disabled { opacity: 0.4; cursor: not-allowed; }

/* ---------- Layout ---------- */

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    align-items: start;
}

.section {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 20px;
}

.section-wide { grid-column: 1 / -1; }

.section-title {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--blue);
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 1px;
    margin-bottom: 15px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 5px;
    font-weight: bold;
}

/* ---------- View toggle ---------- */

.view-toggle {
    margin-left: auto;
    display: flex;
    border: 1px solid var(--border);
    border-radius: 3px;
    overflow: hidden;
}

.view-tab {
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 3px 12px;
    font-size: 10px;
    letter-spacing: 1px;
    color: var(--text-secondary);
}

.view-tab:hover { background: var(--bg-tertiary); color: var(--text-primary); }
.view-tab.active,
.view-tab.active:hover { background: var(--blue); color: #fff; }

.badge {
    background: var(--accent);
    color: #fff;
    font-size: 9px;
    padding: 2px 6px;
    border-radius: 3px;
    letter-spacing: 1px;
    margin-left: 8px;
    vertical-align: middle;
}

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

button, select, input[type="number"], input[type="text"] {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    padding: 10px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-family: Arial, sans-serif;
    font-size: 0.85em;
    letter-spacing: 1px;
    transition: all 0.2s;
}

input[type="text"] { cursor: text; text-transform: none; }

button:hover, select:hover { border-color: #4a4a4a; background: #3a3a3a; }
button:active { background: var(--blue); }

button.primary { background: var(--accent); border-color: var(--accent); }
button.primary:hover { background: var(--accent-dim); border-color: var(--accent-dim); }
button.attention { box-shadow: 0 0 0 2px rgba(207, 26, 55, 0.5); }

.link-button {
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 0;
    margin-top: 12px;
    font-size: 10px;
    text-transform: uppercase;
}

.link-button:hover { background: none; color: var(--text-primary); }

.field {
    display: flex;
    flex-direction: column;
    gap: 5px;
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.field select, .field input[type="text"] { width: 100%; }

.switch-field { flex-direction: row; align-items: center; justify-content: space-between; }
.switch-field input { width: 18px; height: 18px; accent-color: var(--accent); cursor: pointer; }

.button-row { display: flex; gap: 10px; margin-top: 12px; }
.button-row button { flex: 1; }

.hint {
    font-size: 11px;
    color: #666;
    line-height: 1.6;
    margin-top: 15px;
}

/* ---------- EQ toolbar ---------- */

.eq-toolbar {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr auto;
    gap: 15px;
    align-items: end;
    margin-bottom: 25px;
}

.gain-row { display: flex; align-items: center; gap: 10px; }
.gain-row input[type="range"] { flex: 1; }

.gain-value {
    font-size: 11px;
    color: var(--blue);
    font-weight: bold;
    white-space: nowrap;
    /* Fixed width + tabular figures: "-12.0" must occupy exactly as much room
       as "0.0", or the toolbar reflows and the whole panel shifts. */
    width: 62px;
    box-sizing: border-box;
    font-variant-numeric: tabular-nums;
}

.toolbar-actions { display: flex; gap: 10px; }

/* ---------- EQ bands ---------- */

.eq-bands {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 10px;
}

.band {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    background: #141414;
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 12px 6px;
}

.band-readout {
    font-size: 12px;
    font-weight: bold;
    color: var(--blue);
    min-height: 16px;
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

.band-readout small {
    font-size: 8px;
    color: #666;
    margin-left: 2px;
    font-weight: normal;
}

.eq-slider {
    -webkit-appearance: none;
    appearance: none;
    writing-mode: vertical-lr;
    direction: rtl;
    width: 6px;
    height: 150px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}

.eq-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 22px;
    height: 12px;
    border-radius: 3px;
    background: var(--accent);
    border: 1px solid #7d1022;
    cursor: grab;
}

.eq-slider::-moz-range-thumb {
    width: 22px;
    height: 12px;
    border-radius: 3px;
    background: var(--accent);
    border: 1px solid #7d1022;
    cursor: grab;
}

.band-field {
    display: flex;
    flex-direction: column;
    gap: 3px;
    font-size: 8px;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    width: 100%;
    align-items: center;
}

.band-field input, .band-field select {
    width: 100%;
    padding: 4px 2px;
    font-size: 10px;
    letter-spacing: 0;
    text-align: center;
}

.band-field input[type="number"] { cursor: text; }

.eq-scale {
    display: flex;
    justify-content: space-between;
    font-size: 9px;
    color: #444;
    margin-top: 10px;
    padding: 0 4px;
    letter-spacing: 1px;
}

/* ---------- Tone view ----------
   Two views over the same ten bands. The section is a flex column so the band
   sliders can sit *below* the knobs when inspecting — they are the same ten
   sliders either way, just revealed. */

.section-wide { display: flex; flex-direction: column; }

.eq-toolbar { order: 1; }
.tone-view  { order: 2; }
.eq-bands   { order: 3; }
.eq-scale   { order: 4; }

body:not(.mode-tone) .tone-view { display: none; }
body.mode-tone .eq-bands,
body.mode-tone .eq-scale { display: none; }

.knob-row {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
    align-items: start;
    padding: 22px 0 6px;
}

.knob-row tone-knob { --knob-size: 140px; }

.knob-cell {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    min-width: 0;
}

.kill-btn {
    width: 100%;
    max-width: 140px;
    padding: 9px 0;
    font-size: 10px;
    font-weight: bold;
    letter-spacing: 2px;
    text-transform: uppercase;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    border-radius: 3px;
}

.kill-btn:hover { border-color: var(--accent); color: #fff; background: #3a3a3a; }

.kill-btn.active,
.kill-btn.active:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    box-shadow: 0 0 0 2px rgba(207, 26, 55, 0.35);
}

/* The response strip: one column per band, showing the dB the knobs are adding
   there. The bar is the shape; the label under it is that band's frequency. */
.tone-readout {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin-top: 22px;
    font-size: 10px;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
}

.rsp-knobs { display: flex; gap: 22px; color: #666; }
.rsp-knobs b { color: var(--blue); font-size: 12px; }

.rsp-row {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    width: 100%;
    max-width: 620px;
}

.rsp-col {
    flex: 1 1 0;
    min-width: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.rsp-track {
    width: 100%;
    height: 58px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    border-bottom: 1px solid var(--border);
}

.rsp-bar {
    width: 70%;
    max-width: 16px;
    min-height: 2px;
    background: var(--bg-tertiary);
    border-radius: 2px 2px 0 0;
}

.rsp-col.up .rsp-bar { background: var(--blue); }
.rsp-col.down .rsp-bar { background: var(--accent); }

.rsp-db { font-size: 10px; color: #555; }
.rsp-col.up .rsp-db { color: var(--blue); font-weight: bold; }
.rsp-col.down .rsp-db { color: var(--accent); font-weight: bold; }

.rsp-freq { font-size: 8px; color: #444; letter-spacing: 0; }

/* A band whose device frequency is not its slot's. The shape is still right —
   the shares go by position — but the filter is sitting somewhere else, so the
   sound will not match the bars until the frequencies are restored. */
.rsp-col.drifted .rsp-freq { color: var(--accent); font-weight: bold; }

.rsp-caption { font-size: 9px; color: #444; letter-spacing: 1px; }

/* The headroom line. Calm while the curve fits, accent when it does not, and a
   button that only appears when there is something to fix. */
.tone-headroom {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 12px;
    font-size: 10px;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: #666;
    font-variant-numeric: tabular-nums;
    min-height: 26px;
}

.tone-headroom.clipping { color: var(--accent); font-weight: bold; }

.tone-headroom button {
    padding: 4px 10px;
    font-size: 10px;
    letter-spacing: 1px;
}

/* ---------- Connect gate ----------
   Nothing but the Connect button exists until a device is attached. */

body.is-connected .connect-prompt { display: none; }

body:not(.is-connected) .device-ui { display: none !important; }

.connect-prompt {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    background: var(--bg-secondary);
    border: 1px dashed var(--border);
    border-radius: 4px;
}

.connect-button {
    background: var(--accent);
    border: 1px solid var(--accent);
    color: #fff;
    font-size: 1em;
    font-weight: bold;
    padding: 14px 60px;
    letter-spacing: 2px;
}

.connect-button:hover { background: var(--accent-dim); border-color: var(--accent-dim); }
.connect-button:active { background: var(--accent-dim); }

.connect-prompt .hint { margin-top: 20px; }

.connect-error {
    display: none;
    margin-top: 20px;
    color: var(--accent);
    font-size: 12px;
    line-height: 1.5;
}

#saveTarget { margin-top: 12px; color: #888; }

.field-note {
    text-transform: none;
    letter-spacing: 0;
    color: #555;
    font-size: 10px;
}

/* ---------- Drag & drop ---------- */

body.dragging::after {
    content: 'Drop a FiiO .xml profile to apply it';
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(10, 10, 10, 0.85);
    border: 3px dashed var(--accent);
    color: #fff;
    font-size: 16px;
    letter-spacing: 2px;
    text-transform: uppercase;
    z-index: 200;
    pointer-events: none;
}

/* ---------- Status ---------- */

.status-line {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.5;
    min-height: 18px;
}

body.error .status-line { color: var(--accent); }

.log {
    display: none;
    margin-top: 10px;
    padding: 10px;
    background: #0d0d0d;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 10px;
    color: #666;
    max-height: 180px;
    overflow-y: auto;
    white-space: pre-wrap;
}

.log.open { display: block; }

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

@media (max-width: 1100px) {
    .eq-toolbar { grid-template-columns: 1fr 1fr; }
    .eq-bands { grid-template-columns: repeat(5, 1fr); }
    .knob-row { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
}

@media (max-width: 900px) {
    .container { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
    .connection-indicator { display: none; }
    .eq-bands { grid-template-columns: repeat(3, 1fr); }
    .eq-slider { height: 110px; }
    .knob-row { gap: 18px; }
    .knob-row tone-knob { --knob-size: 104px; }
}