/* ==========================================================================
   Audio Remastering Lab - Reusable Component Stylesheet
   Theme: Studio Hardware Console (Dark Charcoal, Amber Gold, Cyan Metering)
   ========================================================================== */

:root {
    --bg-app: #121316;
    --bg-panel: #1b1d22;
    --bg-panel-elevated: #23262d;
    --bg-surface: #15171b;
    --bg-input: #0e1013;

    --border-subtle: #2e323b;
    --border-strong: #414754;
    --border-focus: #f0a500;

    --text-primary: #eceef2;
    --text-secondary: #9ca3af;
    --text-muted: #646b78;

    --accent-primary: #f0a500;
    --accent-primary-hover: #ffb72b;
    --accent-primary-dim: rgba(240, 165, 0, 0.15);

    --accent-secondary: #38bdf8;
    --accent-secondary-dim: rgba(56, 189, 248, 0.15);

    --status-good: #22c55e;
    --status-warn: #f59e0b;
    --status-danger: #ef4444;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 10px;

    --font-mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    --shadow-panel: 0 6px 20px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

/* Base Reset & Typography */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-mono);
    background-color: #1e1e1e;
    color: #e0e0e0;
    line-height: 1.45;
    font-size: 14px;
    min-height: 100vh;
    overflow-x: hidden;
}

body.is-pro-mode {
    background-color: var(--bg-app);
    color: var(--text-primary);
    font-size: 13px;
}

/* ==========================================================================
   GLOBAL HEADER & VIEW SWITCHER (SHARED TOP BANNER)
   ========================================================================== */
.global-header {
    max-width: 64rem;
    margin: 0 auto 2rem;
    padding-top: 1rem;
    text-align: center;
}

body.is-pro-mode .global-header {
    max-width: 1480px;
    margin-bottom: 0.75rem;
}

.global-hero-title {
    font-size: 2.75rem;
    line-height: 1.05;
    font-weight: 700;
    color: #f0a500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.global-hero-subtitle {
    font-size: 1.08rem;
    color: #9ca3af;
    margin-top: 0.65rem;
}

.view-toggle-bar {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    margin-top: 1.15rem;
    padding: 0.35rem 0.5rem;
    background-color: #252525;
    border: 1px solid #444;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
}

.view-toggle-btn {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 700;
    padding: 0.5rem 1.1rem;
    border-radius: 6px;
    border: 1px solid transparent;
    background: transparent;
    color: #b0b0b0;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.18s ease;
}

.view-toggle-btn:hover:not(.is-active) {
    color: #ffffff;
    background-color: #333333;
}

.view-toggle-btn.is-active {
    background-color: #f0a500;
    color: #1e1e1e;
    border-color: #d08c00;
    box-shadow: 0 0 10px rgba(240, 165, 0, 0.4);
}

/* ==========================================================================
   CLASSIC VIEW (ORIGINAL UI LAYOUT & STYLING)
   ========================================================================== */
.classic-shell {
    max-width: 64rem;
    margin: 0 auto;
    padding: 0 1rem 2rem;
}

.control-group {
    background-color: #2d2d2d;
    padding: 1.5rem 2rem;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3), inset 0 1px 2px rgba(255, 255, 255, 0.05);
    margin-bottom: 2rem;
    border: 1px solid #444;
    transition: opacity 0.2s ease, filter 0.2s ease;
}

.control-group h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.35rem;
    color: #f0a500;
    border-bottom: 2px solid #f0a500;
    padding-bottom: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.control-group h4 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1.15rem;
    color: #d5d5d5;
    text-align: center;
}

.classic-three-col {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: 2rem;
    row-gap: 2rem;
}

@media (max-width: 768px) {
    .classic-three-col {
        grid-template-columns: 1fr;
    }
    .global-hero-title {
        font-size: 2rem;
    }
}

.classic-col-stack {
    display: flex;
    flex-direction: column;
    gap: 1.35rem;
}

.classic-shell .control-slider {
    gap: 0.35rem;
}

.classic-shell .control-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: #c5c5c5;
}

.classic-shell .control-value {
    min-width: 40px;
    text-align: right;
    color: #f0a500;
    font-size: 0.9rem;
    font-weight: 700;
}

.classic-shell .control-unit {
    font-size: 0.75rem;
    color: #aaa;
    margin-left: 2px;
}

.classic-shell .range-slider {
    height: 12px;
    background: #1a1a1a;
    border-radius: 6px;
    border: 1px solid #444;
    margin-top: 0.35rem;
}

.classic-shell .range-slider::-webkit-slider-thumb {
    width: 24px;
    height: 24px;
    background: #f0a500;
    border-radius: 4px;
    border: 2px solid #1e1e1e;
    box-shadow: 0 0 5px rgba(240, 165, 0, 0.5);
}

.classic-shell .range-slider::-moz-range-thumb {
    width: 22px;
    height: 22px;
    background: #f0a500;
    border-radius: 4px;
    border: 2px solid #1e1e1e;
    box-shadow: 0 0 5px rgba(240, 165, 0, 0.5);
}

.classic-shell .info-badge {
    width: 20px;
    height: 20px;
    background-color: #777;
    color: #1e1e1e;
    font-size: 0.75rem;
    margin-left: 6px;
}

.classic-shell .info-badge:hover {
    background-color: #f0a500;
}

.classic-file-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 0.5rem;
}

.classic-file-name {
    font-size: 0.88rem;
    color: #b0b0b0;
    flex-grow: 1;
}

.ab-toggle-container {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.ab-toggle-label {
    font-size: 0.92rem;
    color: #777;
    margin: 0 12px;
    font-weight: 600;
    cursor: pointer;
    transition: color 0.2s ease;
}

.ab-toggle-label.is-active-ab {
    color: #f0a500;
    font-weight: 700;
}

.ab-toggle-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 30px;
}

.ab-toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.ab-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #444;
    transition: 0.3s;
    border-radius: 30px;
}

.ab-slider::before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 4px;
    background-color: #e0e0e0;
    transition: 0.3s;
    border-radius: 50%;
}

.ab-toggle-switch input:checked + .ab-slider {
    background-color: #f0a500;
}

.ab-toggle-switch input:checked + .ab-slider::before {
    transform: translateX(30px);
    background-color: #1e1e1e;
}

.audio-player-unified {
    border: 1px solid #444;
    padding: 1.5rem;
    border-radius: 8px;
    background-color: #262626;
}

.classic-player-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.progress-bar-container {
    width: 100%;
    background-color: #1a1a1a;
    border-radius: 4px;
    height: 12px;
    cursor: pointer;
    margin: 1rem 0;
    border: 1px solid #444;
    overflow: hidden;
}

.progress-bar {
    background-color: #f0a500;
    height: 100%;
    width: 0%;
    border-radius: 3px;
}

.visualization-canvas {
    display: block;
    width: 100%;
    height: 120px;
    background-color: #1a1a1a;
    border: 1px solid #444;
    border-radius: 6px;
    margin-top: 1rem;
}

.analysis-block {
    border: 1px solid #4a4a4a;
    padding: 1rem 1.25rem;
    border-radius: 6px;
    background-color: #252525;
    margin-top: 1.25rem;
}

.analysis-block h5 {
    font-family: var(--font-mono);
    font-weight: 700;
    color: #f0a500;
    font-size: 1.05rem;
    margin-bottom: 0.75rem;
    border-bottom: 1px solid #555;
    padding-bottom: 0.5rem;
}

.analysis-metrics-grid {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    font-size: 0.88rem;
    color: #d5d5d5;
}

.analysis-suggestions-list {
    margin-top: 0.5rem;
    padding-left: 1.25rem;
    color: #b0b0b0;
    font-size: 0.85rem;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.btn-secondary {
    background-color: #5a5a5a;
    color: #e0e0e0;
    border-color: #404040;
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
}

.btn-secondary:hover:not(:disabled) {
    background-color: #6b6b6b;
}

.btn-download {
    background-color: #2d4f5a;
    color: #ace6f0;
    border-color: #407a8b;
    padding: 0.65rem 1.4rem;
    font-size: 0.92rem;
}

.btn-download:hover:not(:disabled) {
    background-color: #375f6c;
    box-shadow: 0 0 10px #ace6f0, 0 2px 3px rgba(0, 0, 0, 0.2);
}

.classic-console-dimmed {
    opacity: 0.35;
    filter: grayscale(0.8);
    pointer-events: none;
    user-select: none;
}

.classic-footer {
    max-width: 64rem;
    margin: 2rem auto 0;
    padding: 1.5rem 1rem;
    border-top: 1px solid #374151;
    text-align: center;
    font-size: 0.78rem;
    color: #b5b5b5;
}

body.is-pro-mode .classic-footer {
    max-width: 1480px;
}

.classic-footer a {
    color: #b5b5b5;
    text-decoration: underline;
    transition: color 0.15s ease;
}

.classic-footer a:hover {
    color: #f0a500;
}

/* First-visit welcome note */
.welcome-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
    background: rgba(10, 10, 10, 0.72);
}

.welcome-note {
    width: min(34rem, 100%);
    background-color: #2d2d2d;
    color: #e0e0e0;
    border: 1px solid #444;
    border-radius: 8px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.55), inset 0 1px 2px rgba(255, 255, 255, 0.05);
    padding: 1.6rem 1.75rem 1.4rem;
}

.welcome-kicker {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 1.4px;
    text-transform: uppercase;
    color: #f0a500;
    margin-bottom: 0.45rem;
}

.welcome-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: #f0a500;
    letter-spacing: 0.4px;
    margin-bottom: 0.9rem;
}

.welcome-copy {
    font-size: 0.92rem;
    line-height: 1.55;
    color: #d5d5d5;
}

.welcome-copy p + p {
    margin-top: 0.75rem;
}

.welcome-choices {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.7rem;
    margin: 1rem 0 0.15rem;
}

.welcome-choice {
    background: #1e1e1e;
    border: 1px solid #444;
    border-radius: 6px;
    padding: 0.7rem 0.75rem;
}

.welcome-choice strong {
    display: block;
    color: #f0a500;
    font-size: 0.78rem;
    letter-spacing: 0.4px;
    text-transform: uppercase;
    margin-bottom: 0.3rem;
}

.welcome-choice span {
    display: block;
    font-size: 0.8rem;
    line-height: 1.4;
    color: #c5c5c5;
}

.welcome-signoff {
    margin-top: 1.15rem;
    padding-top: 0.85rem;
    border-top: 1px solid #444;
    font-size: 0.88rem;
    color: #b5b5b5;
}

.welcome-signoff a {
    color: #f0a500;
    font-weight: 700;
    text-decoration: underline;
}

.welcome-signoff a:hover {
    color: #ffb733;
}

.welcome-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 1.1rem;
}

@media (max-width: 640px) {
    .welcome-choices {
        grid-template-columns: 1fr;
    }
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.hidden {
    display: none !important;
}

/* Layout Containers */
.app-shell {
    max-width: 1480px;
    margin: 0 auto;
    padding: 0.85rem 1.25rem 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.console-workspace {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 1rem;
    align-items: start;
}

.console-main {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-width: 0;
}

.console-sidebar {
    position: sticky;
    top: 0.85rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.grid-two-col {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.grid-three-col {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.85rem;
}

@media (max-width: 1120px) {
    .console-workspace {
        grid-template-columns: 1fr;
    }
    .console-sidebar {
        position: static;
    }
}

@media (max-width: 780px) {
    .grid-two-col,
    .grid-three-col {
        grid-template-columns: 1fr;
    }
}

/* Top Navigation / Header Bar */
.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding: 0.75rem 1.15rem;
    background: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-panel);
}

.brand-group {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.brand-badge {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, #f0a500 0%, #d97706 100%);
    color: #121316;
    font-weight: 700;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 12px rgba(240, 165, 0, 0.35);
}

.brand-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--accent-primary);
    letter-spacing: 1.2px;
    text-transform: uppercase;
}

.brand-subtitle {
    font-size: 0.72rem;
    color: var(--text-secondary);
}

.toolbar-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* View Mode Switcher Banner */
.view-mode-switcher {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--bg-surface);
    padding: 0.25rem 0.45rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-strong);
}

.view-mode-label {
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Reusable Panel Card & Inactive/Greyed-Out States */
.panel-card {
    position: relative;
    background-color: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1rem 1.15rem;
    box-shadow: var(--shadow-panel);
    transition: border-color 0.2s ease, opacity 0.2s ease, filter 0.2s ease;
}

/* Greyed out when module is bypassed */
.panel-card.is-bypassed .panel-body-controls {
    opacity: 0.32;
    filter: grayscale(0.85);
    pointer-events: none;
    user-select: none;
}

.panel-card.is-bypassed {
    border-color: #22252c;
}

/* Greyed out when no file is loaded or when listening to Original (A) */
.rack-Inactive-state .rack-module-card {
    opacity: 0.38;
    filter: grayscale(0.75);
    pointer-events: none;
    user-select: none;
}

.rack-status-notice {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.55rem 0.9rem;
    background: rgba(56, 189, 248, 0.12);
    border: 1px solid var(--accent-secondary);
    border-radius: var(--radius-sm);
    color: var(--accent-secondary);
    font-size: 0.76rem;
    font-weight: 600;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding-bottom: 0.65rem;
    margin-bottom: 0.85rem;
    border-bottom: 1px solid var(--border-subtle);
}

.panel-title-group {
    display: flex;
    align-items: center;
    gap: 0.55rem;
}

.panel-title {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.panel-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.column-subtitle {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    padding-bottom: 0.45rem;
    margin-bottom: 0.65rem;
    border-bottom: 1px solid var(--border-subtle);
}

/* Reusable Buttons */
.btn {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 700;
    padding: 0.45rem 0.85rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-strong);
    background-color: var(--bg-panel-elevated);
    color: var(--text-primary);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.15s ease;
    user-select: none;
    white-space: nowrap;
}

.btn:hover:not(:disabled) {
    border-color: var(--text-secondary);
    background-color: #2d313a;
}

.btn:disabled,
.btn.is-disabled {
    opacity: 0.38;
    cursor: not-allowed !important;
    box-shadow: none !important;
}

.btn-primary {
    background-color: var(--accent-primary);
    color: #121316;
    border-color: #d08c00;
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--accent-primary-hover);
    border-color: var(--accent-primary);
    box-shadow: 0 0 12px rgba(240, 165, 0, 0.4);
}

.btn-accent {
    background-color: rgba(56, 189, 248, 0.14);
    color: var(--accent-secondary);
    border-color: rgba(56, 189, 248, 0.45);
}

.btn-accent:hover:not(:disabled) {
    background-color: rgba(56, 189, 248, 0.25);
    box-shadow: 0 0 12px rgba(56, 189, 248, 0.3);
}

.btn-sm {
    font-size: 0.7rem;
    padding: 0.28rem 0.55rem;
}

/* Reusable Toggle Pill (Bypass, Loop, Loudness Match, A/B) */
.toggle-pill {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.24rem 0.55rem;
    border-radius: 999px;
    border: 1px solid var(--border-strong);
    background: var(--bg-input);
    color: var(--text-secondary);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    text-transform: uppercase;
    transition: all 0.15s ease;
}

.toggle-pill:disabled {
    opacity: 0.38;
    cursor: not-allowed;
}

.toggle-pill .status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background-color: var(--text-muted);
    transition: background-color 0.15s ease, box-shadow 0.15s ease;
}

.toggle-pill.is-active {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background-color: var(--accent-primary-dim);
}

.toggle-pill.is-active .status-dot {
    background-color: var(--accent-primary);
    box-shadow: 0 0 6px var(--accent-primary);
}

.toggle-pill.is-cyan.is-active {
    border-color: var(--accent-secondary);
    color: var(--accent-secondary);
    background-color: var(--accent-secondary-dim);
}

.toggle-pill.is-cyan.is-active .status-dot {
    background-color: var(--accent-secondary);
    box-shadow: 0 0 6px var(--accent-secondary);
}

/* Segmented Switch (View Mode, A/B Master Switch, Saturation Mode, Bit Depth) */
.segmented-group {
    display: inline-flex;
    background: var(--bg-input);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    padding: 2px;
    gap: 2px;
}

.segmented-btn {
    font-family: var(--font-mono);
    font-size: 0.74rem;
    font-weight: 700;
    padding: 0.32rem 0.7rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: 3px;
    cursor: pointer;
    text-transform: uppercase;
    transition: all 0.15s ease;
}

.segmented-btn:hover:not(.is-selected):not(:disabled) {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
}

.segmented-btn.is-selected {
    background: var(--accent-primary);
    color: #121316;
    box-shadow: 0 0 8px rgba(240, 165, 0, 0.35);
}

.segmented-btn:disabled {
    opacity: 0.38;
    cursor: not-allowed;
}

/* Reusable Select Input & Text Input */
.select-input,
.text-input {
    font-family: var(--font-mono);
    font-size: 0.76rem;
    background-color: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    padding: 0.38rem 0.6rem;
    outline: none;
}

.select-input:focus,
.text-input:focus {
    border-color: var(--accent-primary);
}

.select-input:disabled,
.text-input:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Reusable Parameter Slider Component & Dependent Disabled State */
.control-slider {
    display: flex;
    flex-direction: column;
    gap: 0.28rem;
    transition: opacity 0.18s ease, filter 0.18s ease;
}

.control-slider.is-inactive {
    opacity: 0.34;
    filter: grayscale(0.85);
}

.control-slider-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.35rem;
}

.control-label {
    font-size: 0.76rem;
    font-weight: 500;
    color: var(--text-primary);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.control-value-group {
    display: inline-flex;
    align-items: baseline;
    gap: 0.15rem;
}

.control-value {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--accent-primary);
    font-variant-numeric: tabular-nums;
}

.control-unit {
    font-size: 0.68rem;
    color: var(--text-secondary);
}

.range-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 7px;
    background: var(--bg-input);
    border-radius: 4px;
    border: 1px solid var(--border-subtle);
    outline: none;
    cursor: pointer;
}

.range-slider:disabled {
    cursor: not-allowed;
}

.range-slider:hover:not(:disabled) {
    border-color: var(--border-strong);
}

.range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 15px;
    height: 15px;
    border-radius: 3px;
    background: var(--accent-primary);
    border: 2px solid #121316;
    box-shadow: 0 0 5px rgba(240, 165, 0, 0.5);
    cursor: grab;
    transition: transform 0.1s ease;
}

.range-slider:disabled::-webkit-slider-thumb {
    background: #555;
    box-shadow: none;
    cursor: not-allowed;
}

.range-slider::-webkit-slider-thumb:active {
    cursor: grabbing;
    transform: scale(1.12);
}

.range-slider::-moz-range-thumb {
    width: 15px;
    height: 15px;
    border-radius: 3px;
    background: var(--accent-primary);
    border: 2px solid #121316;
    box-shadow: 0 0 5px rgba(240, 165, 0, 0.5);
    cursor: grab;
}

/* Info Tooltip Component */
.info-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background-color: #2e323b;
    color: var(--text-secondary);
    font-size: 0.62rem;
    font-weight: 700;
    cursor: help;
    flex-shrink: 0;
    transition: all 0.15s ease;
}

.info-badge:hover {
    background-color: var(--accent-primary);
    color: #121316;
}

.floating-tooltip {
    position: fixed;
    z-index: 1000;
    max-width: 260px;
    background-color: #101216;
    color: var(--text-primary);
    border: 1px solid var(--accent-primary);
    border-radius: var(--radius-sm);
    padding: 0.55rem 0.7rem;
    font-size: 0.72rem;
    line-height: 1.4;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.65);
    pointer-events: none;
}

/* Dropzone & File Loader Bar */
.file-dropzone {
    border: 1px dashed var(--border-strong);
    background: linear-gradient(180deg, rgba(240, 165, 0, 0.04) 0%, rgba(18, 19, 22, 0.4) 100%);
    border-radius: var(--radius-md);
    padding: 0.85rem 1.1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
    transition: border-color 0.2s ease, background-color 0.2s ease;
}

.file-dropzone.is-dragover {
    border-color: var(--accent-primary);
    background-color: var(--accent-primary-dim);
}

.file-status-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 0;
}

.file-meta-text {
    font-size: 0.78rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-meta-text strong {
    color: var(--text-primary);
}

/* Transport & Waveform Canvas Area */
.transport-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin-bottom: 0.65rem;
}

.transport-left,
.transport-center,
.transport-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.time-readout {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--accent-primary);
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
    padding: 0.3rem 0.65rem;
    border-radius: var(--radius-sm);
    font-variant-numeric: tabular-nums;
}

.visualizer-frame {
    position: relative;
    width: 100%;
    background-color: var(--bg-input);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.waveform-canvas {
    display: block;
    width: 100%;
    height: 112px;
    cursor: crosshair;
}

.eq-spectrum-canvas {
    display: block;
    width: 100%;
    height: 210px;
    cursor: crosshair;
}

.classic-spectrum-canvas {
    display: block;
    width: 100%;
    height: 110px;
}

.canvas-overlay-legend {
    position: absolute;
    top: 6px;
    right: 8px;
    display: flex;
    gap: 0.65rem;
    font-size: 0.66rem;
    color: var(--text-secondary);
    background: rgba(14, 16, 19, 0.78);
    padding: 2px 7px;
    border-radius: 3px;
    pointer-events: none;
}

.legend-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.legend-swatch {
    width: 8px;
    height: 8px;
    border-radius: 2px;
}

/* EQ Band Tabs / Strip */
.eq-band-tabs {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 0.4rem;
    margin: 0.7rem 0;
}

@media (max-width: 680px) {
    .eq-band-tabs {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.eq-band-tab {
    font-family: var(--font-mono);
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 0.4rem 0.45rem;
    text-align: left;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.15s ease;
}

.eq-band-tab:hover {
    border-color: var(--border-strong);
}

.eq-band-tab.is-active {
    border-color: var(--accent-primary);
    background: var(--accent-primary-dim);
    color: var(--text-primary);
}

.eq-band-tab-title {
    font-size: 0.68rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.eq-band-tab-sub {
    font-size: 0.65rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.eq-band-tab.is-active .eq-band-tab-sub {
    color: var(--accent-primary);
}

/* Metering Bridge & Stat Readouts */
.meter-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.5rem;
}

.stat-readout {
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 0.45rem 0.6rem;
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 0.65rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.stat-value {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
    margin-top: 2px;
}

.stat-value.is-amber {
    color: var(--accent-primary);
}

.stat-value.is-cyan {
    color: var(--accent-secondary);
}

.stat-value.is-good {
    color: var(--status-good);
}

.stat-value.is-warn {
    color: var(--status-warn);
}

.stat-value.is-danger {
    color: var(--status-danger);
}

/* Vertical / Horizontal Meter Bars */
.level-meter-group {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    margin-top: 0.65rem;
}

.meter-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.meter-row-label {
    width: 30px;
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--text-secondary);
}

.meter-track {
    flex: 1;
    height: 10px;
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
    border-radius: 3px;
    overflow: hidden;
    position: relative;
}

.meter-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #22c55e 0%, #22c55e 70%, #f0a500 88%, #ef4444 100%);
    transition: width 0.04s linear;
}

.meter-fill.is-gr {
    background: linear-gradient(90deg, #38bdf8 0%, #f0a500 100%);
}

.meter-db-text {
    width: 52px;
    text-align: right;
    font-size: 0.68rem;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
}

.vectorscope-canvas {
    display: block;
    width: 100%;
    height: 130px;
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
}

/* Phase Correlation Bar */
.phase-track {
    position: relative;
    height: 8px;
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    margin-top: 0.35rem;
}

.phase-center-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 1px;
    background: var(--text-muted);
}

.phase-indicator {
    position: absolute;
    top: 1px;
    bottom: 1px;
    width: 10px;
    border-radius: 2px;
    background: var(--status-good);
    transform: translateX(-50%);
    left: 75%;
    transition: left 0.06s linear;
}

/* Smart Auto-Master Diagnostic Banner */
.diagnostic-banner {
    background: var(--bg-surface);
    border: 1px solid var(--border-strong);
    border-left: 3px solid var(--accent-primary);
    border-radius: var(--radius-sm);
    padding: 0.7rem 0.9rem;
    font-size: 0.74rem;
}

.diagnostic-title {
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: 0.35rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.diagnostic-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    list-style: none;
}

.badge-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.18rem 0.5rem;
    border-radius: 3px;
    font-size: 0.68rem;
    background: var(--bg-panel-elevated);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
}

.badge-tag.is-highlight {
    border-color: rgba(240, 165, 0, 0.5);
    color: var(--accent-primary);
}

/* Comparison Table in Analysis Card */
.metrics-comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.72rem;
    margin-top: 0.25rem;
}

.metrics-comparison-table th,
.metrics-comparison-table td {
    padding: 0.38rem 0.4rem;
    text-align: left;
    border-bottom: 1px solid var(--border-subtle);
}

.metrics-comparison-table th {
    color: var(--text-secondary);
    font-weight: 600;
}

.audit-status-badge {
    font-size: 0.64rem;
    color: var(--text-secondary);
    padding: 2px 6px;
    border-radius: 3px;
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
}

.audit-status-badge.is-computing {
    color: var(--accent-primary);
    border-color: var(--accent-primary);
}

/* Footer & Shortcuts Bar */
.console-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-subtle);
    font-size: 0.72rem;
    color: var(--text-muted);
}

.shortcut-hints {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
}

.kbd-key {
    background: var(--bg-panel-elevated);
    border: 1px solid var(--border-strong);
    border-radius: 3px;
    padding: 1px 5px;
    font-size: 0.66rem;
    color: var(--text-primary);
}