/* ==================== THEME SYSTEM ==================== */
:root {
    /* Base structure */
    --header-height: 38px;
    --footer-height: 140px;
    --font-tech: 'Courier New', 'Consolas', monospace;
    --font-ui: 'Segoe UI', 'Verdana', sans-serif;
    
    /* Module colors (shared across themes - WCAG AAA compliant) */
    --mod-input-color: #fbbf24;      /* Brighter Amber */
    --mod-db-color: #22d3ee;         /* Brighter Cyan */
    --mod-score-color: #cbd5e1;      /* Lighter Grey */
    --mod-prog-color: #e879f9;       /* Brighter Magenta */
    --mod-solar-color: #22d3ee;      /* Brighter Teal */
    --mod-ref-color: #fb923c;        /* Brighter Orange */
    --mod-tool-color: #34d399;       /* Brighter Green */
}

/* THEME A: Clean DAW / Logic-style (subtle color bands) */
body[data-theme="clean-daw"] {
    --bg-app: #18181b;
    --bg-panel: #27272a;
    --bg-header: #3f3f46;
    --bg-input: #09090b;
    
    --accent-primary: #60a5fa;
    --accent-secondary: #34d399;
    --accent-glow: rgba(96, 165, 250, 0.15);
    --accent-grid: rgba(255, 255, 255, 0.03);
    
    --text-main: #ffffff;
    --text-muted: #d4d4d8;
    --text-highlight: #93c5fd;
    
    --border-light: #52525b;
    --border-hover: #60a5fa;
    
    --radius-sm: 2px;
    --radius-md: 4px;
}

/* THEME B: Channel Strip DAW (Reaper-ish) */
body[data-theme="channel-strip"] {
    --bg-app: #0f172a;
    --bg-panel: #1e293b;
    --bg-header: #334155;
    --bg-input: #020617;
    
    --accent-primary: #38bdf8;
    --accent-secondary: #22d3ee;
    --accent-glow: rgba(56, 189, 248, 0.2);
    --accent-grid: rgba(56, 189, 248, 0.04);
    
    --text-main: #f8fafc;
    --text-muted: #cbd5e1;
    --text-highlight: #bae6fd;
    
    --border-light: #64748b;
    --border-hover: #38bdf8;
    
    --radius-sm: 1px;
    --radius-md: 2px;
}

/* THEME C: Matrix FX (darker, more glow) */
body[data-theme="matrix-fx"] {
    --bg-app: #000000;
    --bg-panel: #050a0f;
    --bg-header: #0a1520;
    --bg-input: #000000;
    
    --accent-primary: #00f3ff;
    --accent-secondary: #00ff41;
    --accent-glow: rgba(0, 243, 255, 0.3);
    --accent-grid: rgba(0, 243, 255, 0.1);
    
    --text-main: #e0f7fa;
    --text-muted: #8ab4c5;
    --text-highlight: #00f3ff;
    
    --border-light: #2a5c7d;
    --border-hover: #00f3ff;
    
    --radius-sm: 0px;
    --radius-md: 0px;
}

/* THEME D: Steam 2000 (Retro Olive/Green) */
body[data-theme="steam-2000"] {
    --bg-app: #1e251e;
    --bg-panel: #2a352b;
    --bg-header: #3d4c3f;
    --bg-input: #121612;
    
    --accent-primary: #d4e09b;
    --accent-secondary: #a8b970;
    --accent-glow: rgba(198, 212, 126, 0.15);
    --accent-grid: rgba(198, 212, 126, 0.06);
    
    --text-main: #f0f5e9;
    --text-muted: #b8c4b0;
    --text-highlight: #ffffff;
    
    --border-light: #5c7060;
    --border-hover: #d4e09b;
    
    --radius-sm: 0px;
    --radius-md: 0px;
    
    --font-ui: 'Verdana', 'Tahoma', sans-serif;
}

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

/* Accessibility: Focus Styles */
:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

body {
    background-color: var(--bg-app);
    background-image: 
        linear-gradient(var(--accent-grid) 1px, transparent 1px),
        linear-gradient(90deg, var(--accent-grid) 1px, transparent 1px);
    background-size: 20px 20px;
    color: var(--text-main);
    font-family: var(--font-ui);
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    font-size: 12px;
}

/* ==================== CONTROL DECK (TOP) ==================== */
.control-deck {
    height: var(--header-height);
    background: rgba(5, 10, 15, 0.9);
    border-bottom: 1px solid var(--accent-primary);
    display: flex;
    align-items: center;
    padding: 0 12px;
    gap: 16px;
}

/* Hide internal titles since we have module headers */
#number-generator-container h3 { display: none; }

/* ==================== MAIN WORKSPACE ==================== */
.workspace {
    flex: 1;
    display: grid;
    grid-template-columns: minmax(280px, 0.85fr) 1fr minmax(260px, 0.75fr);
    overflow: auto;
    background: transparent;
    padding: 6px;
    gap: 6px;
    align-items: start;
}

.workspace-column {
    display: flex;
    flex-direction: column;
    gap: 6px;
    overflow: visible;
    min-height: min-content;
}

.workspace-column.right-sidebar {
    position: sticky;
    top: calc(var(--header-height) + 6px);
    align-self: flex-start;
    max-height: calc(100vh - var(--header-height) - 12px);
    overflow-y: auto;
}

.workspace-column.center-stage {
    border: 1px solid var(--border-light);
    background: rgba(0,0,0,0.5);
    position: relative;
    padding: 0;
    gap: 6px;
    padding-bottom: 6px;
}

/* Corner decorations for center stage */
.workspace-column.center-stage::before {
    content: '';
    position: absolute;
    top: -1px; left: -1px;
    width: 10px; height: 10px;
    border-top: 2px solid var(--accent-primary);
    border-left: 2px solid var(--accent-primary);
}
.workspace-column.center-stage::after {
    content: '';
    position: absolute;
    bottom: -1px; right: -1px;
    width: 10px; height: 10px;
    border-bottom: 2px solid var(--accent-primary);
    border-right: 2px solid var(--accent-primary);
}

/* ==================== STUDIO MODULE BASE STYLES ==================== */
.studio-module {
    background: linear-gradient(180deg, rgba(255,255,255,0.02), transparent);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 0;
    display: flex;
    flex-direction: column;
    min-width: 220px;
    width: 100%;
    min-height: 120px;
    color: var(--text-main);
    font-family: var(--font-ui);
}

.studio-module .module-header {
    padding: 8px 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    font-weight: 700;
    font-size: 0.92rem;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    background: rgba(0,0,0,0.03);
}

.studio-module .module-header .btn-icon {
    background: transparent;
    border: none;
    cursor: pointer;
    color: inherit;
}

.studio-module .module-content {
    padding: 10px;
    overflow: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Keep module-specific overrides (e.g. sheet music) intact */

/* ==================== LEARN MODULE PAGES ==================== */
#learn-inversions-page,
#learn-chords-page,
#learn-piano-notes-page {
    max-width: 100%;
}

/* ==================== BOTTOM DECK (PIANO) ==================== */
.bottom-deck {
    --dock-header-h: 0px;
    /* ~25% of the screen, but not rigid: keeps the dock usable on mobile */
    height: clamp(160px, 25vh, 320px);
    overflow: hidden;
    background: linear-gradient(180deg, #0a0a0a 0%, #000000 100%);
    border-top: 2px solid var(--accent-primary);
    padding: 0;
    flex-shrink: 0;
    position: relative;
    z-index: 90;
    box-shadow: 
        0 -4px 20px rgba(0,0,0,0.8),
        0 -1px 0 var(--accent-primary),
        inset 0 1px 0 rgba(255,255,255,0.05);
}

/* Dock grid takes the full deck height; visualizers scale to fit (no internal scrolling) */
#instrument-dock-root #instrument-dock {
    margin-top: 0;
    height: 100%;
    overflow: hidden;
    box-sizing: border-box;
    padding: 6px 10px 8px 10px;
    display: grid;
    gap: 10px;
    grid-template-columns: 1fr 1fr;
}

/* Dock mode: ensure the remaining instrument fills the dock width (no “blank column” on the right) */
#instrument-dock-root.dock-mode-piano #instrument-dock,
#instrument-dock-root.dock-mode-guitar #instrument-dock {
    grid-template-columns: 1fr !important;
    gap: 0px !important;
}

#instrument-dock-root.dock-mode-piano #instrument-pane-piano,
#instrument-dock-root.dock-mode-guitar #instrument-pane-guitar {
    grid-column: 1 / -1;
}

.instrument-dock-settings {
    position: absolute;
    top: 6px;
    right: 12px;
    z-index: 110;
    pointer-events: auto;
}

.instrument-dock-settings-anchor {
    position: relative;
    display: inline-block;
}

#instrument-dock-settings-btn {
    font-size: 0.8rem;
    padding: 2px 8px;
}

#instrument-dock-settings-panel {
    min-width: 180px;
}

/* Decorative corner accents for bottom deck */
.bottom-deck::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 40px;
    height: 40px;
    border-top: 2px solid var(--accent-primary);
    border-left: 2px solid var(--accent-primary);
    opacity: 0.5;
}

.bottom-deck::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 40px;
    height: 40px;
    border-top: 2px solid var(--accent-primary);
    border-right: 2px solid var(--accent-primary);
    opacity: 0.5;
}

.bottom-deck-label {
    position: absolute;
    top: 4px;
    left: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-tech);
    font-size: 0.6rem;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    z-index: 10;
    pointer-events: none;
}

#instrument-dock-root #instrument-pane-piano,
#instrument-dock-root #instrument-pane-guitar {
    height: 100%;
    min-height: 0;
    overflow: hidden;
    display: flex;
}

#instrument-dock-root .instrument-pane > * {
    flex: 1 1 auto;
    min-height: 0;
    min-width: 0;
}

.deck-icon {
    font-size: 0.8rem;
    filter: drop-shadow(0 0 4px var(--accent-primary));
}

/* Tech decoration in header */
body[data-theme="matrix-fx"] .module-header::before {
    content: '■ ';
    color: var(--accent-secondary);
    margin-right: 5px;
}

/* ==================== PER-MODULE COLOR THEMING ==================== */

/* Theme A: Clean DAW - Subtle colored header bands only */
body[data-theme="clean-daw"] .mod-input .module-header { color: var(--mod-input-color); }
body[data-theme="clean-daw"] .mod-db .module-header { color: var(--mod-db-color); }
body[data-theme="clean-daw"] .mod-score .module-header { color: var(--mod-score-color); }
body[data-theme="clean-daw"] .mod-prog .module-header { color: var(--mod-prog-color); }
body[data-theme="clean-daw"] .mod-solar .module-header { color: var(--mod-solar-color); }
body[data-theme="clean-daw"] .mod-ref .module-header { color: var(--mod-ref-color); }
body[data-theme="clean-daw"] .mod-tool .module-header { color: var(--mod-tool-color); }

/* Theme B: Channel Strip - Header + left border with module color, body slightly tinted */
body[data-theme="channel-strip"] .mod-input { 
    border-left: 3px solid var(--mod-input-color); 
    background: linear-gradient(90deg, rgba(245, 158, 11, 0.05) 0%, var(--bg-panel) 100%);
}
body[data-theme="channel-strip"] .mod-input .module-header { 
    color: var(--mod-input-color); 
    background: linear-gradient(90deg, rgba(245, 158, 11, 0.15) 0%, transparent 100%);
}

/* ==================== LANDING PAGE STYLES ==================== */
.landing-page {
    font-family: var(--font-ui);
}

.landing-page h1, .landing-page h3 {
    font-weight: 600;
}

.module-card {
    background: var(--bg-panel);
    border: 1px solid var(--border-light);
    border-radius: 6px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.module-card:hover {
    background: rgba(96, 165, 250, 0.05);
    border-color: var(--accent-primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    transform: translateY(-2px);
}

.module-card.selected {
    background: rgba(96, 165, 250, 0.15);
    border-color: var(--accent-primary);
    box-shadow: 0 0 12px rgba(96, 165, 250, 0.3);
}

.module-card-title {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-main);
}

.module-card-description {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.module-card-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-top: 8px;
}

.module-card-tag {
    background: rgba(96, 165, 250, 0.1);
    border: 1px solid var(--accent-primary);
    color: var(--accent-primary);
    padding: 3px 8px;
    border-radius: 3px;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.skill-level-btn.active {
    background: var(--accent-primary) !important;
    color: #000 !important;
    border-color: var(--accent-primary) !important;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    #module-grid {
        grid-template-columns: 1fr !important;
    }

    .landing-page {
        padding: 15px !important;
    }

    .landing-page h1 {
        font-size: 1.8rem;
    }

    #intent-search {
        width: 100% !important;
    }

    .skill-level-btn {
        flex: 1;
        min-width: 80px;
        padding: 8px 12px !important;
        font-size: 0.8rem !important;
    }
}

body[data-theme="channel-strip"] .mod-db { 
    border-left: 3px solid var(--mod-db-color);
    background: linear-gradient(90deg, rgba(0, 243, 255, 0.05) 0%, var(--bg-panel) 100%);
}
body[data-theme="channel-strip"] .mod-db .module-header { 
    color: var(--mod-db-color);
    background: linear-gradient(90deg, rgba(0, 243, 255, 0.15) 0%, transparent 100%);
}

body[data-theme="channel-strip"] .mod-score { 
    border-left: 3px solid var(--mod-score-color);
}
body[data-theme="channel-strip"] .mod-score .module-header { 
    color: var(--mod-score-color);
}

body[data-theme="channel-strip"] .mod-prog { 
    border-left: 3px solid var(--mod-prog-color);
    background: linear-gradient(90deg, rgba(217, 70, 239, 0.05) 0%, var(--bg-panel) 100%);
}
body[data-theme="channel-strip"] .mod-prog .module-header { 
    color: var(--mod-prog-color);
    background: linear-gradient(90deg, rgba(217, 70, 239, 0.15) 0%, transparent 100%);
}

body[data-theme="channel-strip"] .mod-solar { 
    border-left: 3px solid var(--mod-solar-color);
    background: linear-gradient(90deg, rgba(6, 182, 212, 0.05) 0%, var(--bg-panel) 100%);
}
body[data-theme="channel-strip"] .mod-solar .module-header { 
    color: var(--mod-solar-color);
    background: linear-gradient(90deg, rgba(6, 182, 212, 0.15) 0%, transparent 100%);
}

body[data-theme="channel-strip"] .mod-ref { 
    border-left: 3px solid var(--mod-ref-color);
    background: linear-gradient(90deg, rgba(249, 115, 22, 0.05) 0%, var(--bg-panel) 100%);
}
body[data-theme="channel-strip"] .mod-ref .module-header { 
    color: var(--mod-ref-color);
    background: linear-gradient(90deg, rgba(249, 115, 22, 0.15) 0%, transparent 100%);
}

body[data-theme="channel-strip"] .mod-tool { 
    border-left: 3px solid var(--mod-tool-color);
    background: linear-gradient(90deg, rgba(16, 185, 129, 0.05) 0%, var(--bg-panel) 100%);
}
body[data-theme="channel-strip"] .mod-tool .module-header { 
    color: var(--mod-tool-color);
    background: linear-gradient(90deg, rgba(16, 185, 129, 0.15) 0%, transparent 100%);
}

/* Theme C: Matrix FX - Strong accent with background wash */
body[data-theme="matrix-fx"] .mod-input {
    border: 1px solid rgba(245, 158, 11, 0.3);
    background: radial-gradient(circle at top left, rgba(245, 158, 11, 0.08), var(--bg-panel));
}
body[data-theme="matrix-fx"] .mod-input .module-header { 
    color: var(--mod-input-color);
    text-shadow: 0 0 8px rgba(245, 158, 11, 0.5);
}
body[data-theme="matrix-fx"] .mod-input:hover {
    border-color: var(--mod-input-color);
    box-shadow: 0 0 20px rgba(245, 158, 11, 0.3);
}

body[data-theme="matrix-fx"] .mod-db {
    border: 1px solid rgba(0, 243, 255, 0.3);
    background: radial-gradient(circle at top left, rgba(0, 243, 255, 0.08), var(--bg-panel));
}
body[data-theme="matrix-fx"] .mod-db .module-header { 
    color: var(--mod-db-color);
    text-shadow: 0 0 8px rgba(0, 243, 255, 0.5);
}
body[data-theme="matrix-fx"] .mod-db:hover {
    border-color: var(--mod-db-color);
    box-shadow: 0 0 20px rgba(0, 243, 255, 0.3);
}

body[data-theme="matrix-fx"] .mod-score {
    border: 1px solid var(--border-light);
}
body[data-theme="matrix-fx"] .mod-score .module-header { 
    color: var(--mod-score-color);
}

body[data-theme="matrix-fx"] .mod-prog {
    border: 1px solid rgba(217, 70, 239, 0.3);
    background: radial-gradient(circle at top left, rgba(217, 70, 239, 0.08), var(--bg-panel));
}
body[data-theme="matrix-fx"] .mod-prog .module-header { 
    color: var(--mod-prog-color);
    text-shadow: 0 0 8px rgba(217, 70, 239, 0.5);
}
body[data-theme="matrix-fx"] .mod-prog:hover {
    border-color: var(--mod-prog-color);
    box-shadow: 0 0 20px rgba(217, 70, 239, 0.3);
}

body[data-theme="matrix-fx"] .mod-solar {
    border: 1px solid rgba(6, 182, 212, 0.3);
    background: radial-gradient(circle at top left, rgba(6, 182, 212, 0.08), var(--bg-panel));
}
body[data-theme="matrix-fx"] .mod-solar .module-header { 
    color: var(--mod-solar-color);
    text-shadow: 0 0 8px rgba(6, 182, 212, 0.5);
}
body[data-theme="matrix-fx"] .mod-solar:hover {
    border-color: var(--mod-solar-color);
    box-shadow: 0 0 20px rgba(6, 182, 212, 0.3);
}

body[data-theme="matrix-fx"] .mod-ref {
    border: 1px solid rgba(249, 115, 22, 0.3);
    background: radial-gradient(circle at top left, rgba(249, 115, 22, 0.08), var(--bg-panel));
}
body[data-theme="matrix-fx"] .mod-ref .module-header { 
    color: var(--mod-ref-color);
    text-shadow: 0 0 8px rgba(249, 115, 22, 0.5);
}
body[data-theme="matrix-fx"] .mod-ref:hover {
    border-color: var(--mod-ref-color);
    box-shadow: 0 0 20px rgba(249, 115, 22, 0.3);
}

body[data-theme="matrix-fx"] .mod-tool {
    border: 1px solid rgba(16, 185, 129, 0.3);
    background: radial-gradient(circle at top left, rgba(16, 185, 129, 0.08), var(--bg-panel));
}
body[data-theme="matrix-fx"] .mod-tool .module-header { 
    color: var(--mod-tool-color);
    text-shadow: 0 0 8px rgba(16, 185, 129, 0.5);
}
body[data-theme="matrix-fx"] .mod-tool:hover {
    border-color: var(--mod-tool-color);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.3);
}

.module-content {
    padding: 10px;
    overflow: visible;
    background: transparent;
    display: flex;
    flex-direction: column;
}

/* Specific Module Tweaks */
#sheet-music-container {
    background: #e0e0e0;
    border: 2px solid var(--border-light);
    min-height: 180px;
    max-height: none;
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    padding: 20px;
    filter: invert(1) hue-rotate(180deg);
    width: 100%;
    box-sizing: border-box;
    overflow-x: auto;
}

/* Keep embedded sheet renderers from overflowing the center stage */
#sheet-music-container svg,
#sheet-music-container canvas {
    max-width: 100%;
}

#chord-explorer-container {
    overflow: visible;
    display: flex;
    flex-direction: column;
    width: 100%;
}

/* ==================== PROGRESSION BUILDER STYLES ==================== */
.progression-builder-ui {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-family: var(--font-ui);
}

.pb-top {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: flex-start;
}

.pb-left {
    flex: 1;
    min-width: 300px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.pb-input {
    background: var(--bg-input);
    border: 1px solid var(--border-light);
    padding: 8px;
    border-radius: var(--radius-sm);
}

.pb-input-numbers {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    min-height: 32px;
    align-items: center;
}

.pb-chip {
    background: var(--accent-primary);
    color: #000;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    font-family: var(--font-tech);
}

.pb-hint {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-style: italic;
}

.pb-keyscale {
    margin-top: 6px;
    color: var(--accent-secondary);
    font-size: 0.8rem;
    font-family: var(--font-tech);
}

.pb-controls {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.pg-target {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: center;
}

.pg-degree-list {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.pg-degree-btn {
    font-size: 0.75rem;
    padding: 4px 8px !important;
}

.pb-explore {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.pb-label {
    font-size: 0.85rem;
    color: var(--text-main);
    font-family: var(--font-tech);
}

.pb-select {
    flex: 1;
    min-width: 150px;
}

.pb-regenerate {
    white-space: nowrap;
}

.pb-pad {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: center;
    margin-top: 10px;
}

.pb-pad-wrap {
    position: relative;
    width: 180px;
    height: 180px;
    margin: 12px 20px;
}

.pb-axis-label {
    position: absolute;
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    font-family: var(--font-tech);
    letter-spacing: 1px;
    white-space: nowrap;
}

.pb-axis-top { top: -20px; left: 50%; transform: translateX(-50%); }
.pb-axis-bottom { bottom: -20px; left: 50%; transform: translateX(-50%); }
.pb-axis-left { left: -35px; top: 50%; transform: translateY(-50%) rotate(-90deg); }
.pb-axis-right { right: -35px; top: 50%; transform: translateY(-50%) rotate(90deg); }

.pb-axis-badge {
    font-size: 0.6rem;
    margin-left: 3px;
}

.pb-axis-sub {
    font-size: 0.6rem;
    display: block;
    margin-top: 2px;
}

.pb-pad-surface {
    width: 100%;
    height: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border-light);
    position: relative;
    cursor: crosshair;
    overflow: hidden;
}

.pb-status {
    display: flex;
    gap: 8px;
    width: 100%;
    justify-content: center;
}

.pb-card {
    background: var(--bg-input);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    padding: 6px 10px;
    text-align: center;
    flex: 1;
    min-width: 80px;
}

.pb-card-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 4px;
    font-family: var(--font-tech);
}

.pb-card-value {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 2px;
}

.pb-card-sub {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.pb-chord-explanation {
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-bottom: 2px;
    line-height: 1.2;
}

.pb-chord-degree {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-align: center;
}

.pb-progression-controls {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-top: 8px;
}

.pb-suggest-alternatives,
.pb-show-analysis {
    font-size: 0.8rem;
    padding: 6px 12px;
}

.pb-sub-panel {
    margin-top: 12px;
    padding: 12px;
    background: var(--bg-input);
    border: 1px solid var(--border-light);
}

.pb-sub-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.pb-progression-display {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
    padding: 10px;
    background: rgba(0,0,0,0.2);
    border-radius: 4px;
}

.pb-chord-item {
    background: var(--bg-input);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    padding: 8px;
    min-width: 120px;
    flex: 1 1 120px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.pb-chord-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-left: 8px;
    margin-bottom: 4px;
}

.pb-chord-name {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-main);
}

.pb-chord-grade {
    font-size: 0.7rem;
    font-weight: 600;
}

/* Mini Chord Strip */
.mini-chord-strip {
    display: flex;
    gap: 8px;
    padding: 8px 12px;
    overflow-x: auto;
    overflow-y: hidden;
    flex-wrap: nowrap;
    background: rgba(0,0,0,0.3);
    border-bottom: 1px solid var(--border-light);
    min-height: 50px;
    align-items: center;
}

/* Piano overrides */
#instrument-dock-root #piano-wrapper {
    position: relative;
    width: 100%;
    min-width: 0;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

#instrument-dock-root #piano-container {
    height: 100%;
    min-height: 0;
    width: 100%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    gap: 6px;
    padding: 0;
    background: 
        radial-gradient(ellipse at center top, rgba(0, 243, 255, 0.03) 0%, transparent 50%),
        linear-gradient(180deg, rgba(0,0,0,0.5) 0%, #000000 100%);
    position: relative;
}

/* Stack any extra UI above the keyboard */
#instrument-dock-root #piano-container > * {
    flex: 0 0 auto;
}

/* Let the keyboard consume remaining dock height */
#instrument-dock-root #piano-container > .piano-visualizer {
    flex: 1 1 auto;
    min-height: 0;
}

/* Center the keyboard when it fits; keep scroll behavior when it doesn't */
#instrument-dock-root #piano-container .piano-visualizer {
    margin-left: auto;
    margin-right: auto;
    max-width: 100%;
    max-height: 100%;
}

#instrument-dock-root #guitar-dock-container {
    height: 100%;
    min-height: 0;
    width: 100%;
    min-width: 0;
    overflow: hidden;
    display: flex;
    align-items: stretch;
    justify-content: stretch;
}

/* Make the docked guitar fill its container like the piano */
#instrument-dock-root #guitar-dock-container .guitar-fretboard {
    width: 100%;
    height: 100%;
    min-height: 0;
    min-width: 0;
}

/* Add subtle grid pattern to piano container */
#piano-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.01) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.01) 1px, transparent 1px);
    background-size: 20px 20px;
    pointer-events: none;
    opacity: 0.5;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1200px) {
    .workspace {
        grid-template-columns: 300px 1fr;
    }
    .workspace-column.right-sidebar {
        display: none;
    }
}

@media (max-width: 900px) {
    body { overflow: auto; height: auto; display: block; }
    .control-deck { 
        height: auto; 
        flex-wrap: wrap; 
        padding: 12px; 
        position: sticky;
        top: 0;
    }
    .workspace {
        display: flex;
        flex-direction: column;
        height: auto;
        overflow: visible;
    }
    .workspace-column {
        height: auto;
        overflow: visible;
        border: none;
    }
    .bottom-deck {
        position: sticky;
        bottom: 0;
        height: clamp(170px, 32vh, 360px);
    }
}

/* Utilities */
.btn-icon { 
    background: transparent; 
    border: 1px solid transparent; 
    color: var(--text-muted); 
    cursor: pointer; 
    font-family: var(--font-tech);
    padding: 2px 6px;
}
.btn-icon:hover { 
    color: var(--accent-primary); 
    border-color: var(--accent-primary);
    background: rgba(0, 243, 255, 0.1);
}

/* Scrollbars */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: #000; border-left: 1px solid var(--border-light); }
::-webkit-scrollbar-thumb { background: var(--border-light); border: 1px solid #000; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-primary); }

/* Global Button Styles for injected modules */
button {
    font-family: var(--font-tech) !important;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 0 !important;
}

.btn {
    background: var(--bg-input);
    border: 1px solid var(--border-light);
    color: var(--text-main);
    padding: 8px 12px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s ease;
}

.btn:hover {
    border-color: var(--accent-primary);
    background: rgba(0, 243, 255, 0.1);
    color: var(--accent-primary);
}

.btn-primary {
    background: var(--accent-primary);
    color: #000;
    border-color: var(--accent-primary);
}

.btn-primary:hover {
    background: var(--accent-secondary);
    border-color: var(--accent-secondary);
}

/* Input Styles */
input, select {
    background: #000 !important;
    border: 1px solid var(--border-light) !important;
    color: var(--accent-primary) !important;
    font-family: var(--font-tech) !important;
    border-radius: 0 !important;
}
input:focus, select:focus {
    border-color: var(--accent-primary) !important;
    box-shadow: 0 0 8px var(--accent-glow) !important;
    outline: none;
}

/* ==================== SIMPLIFIED CONTROL DECK ==================== */
.primary-input-section {
    border-left: 1px solid var(--border-light);
    padding-left: 16px;
}

.grading-section {
    border-left: 1px solid var(--border-light);
    padding-left: 12px;
}

.secondary-controls {
    border-left: 1px solid var(--border-light);
    padding-left: 12px;
}

/* ==================== DROPDOWN PANELS ==================== */
.tools-dropdown-panel,
#settings-dropdown-panel,
#help-dropdown-panel {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    background: var(--bg-panel);
    border: 1px solid var(--border-light);
    padding: 8px;
    min-width: 200px;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s ease;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0,0,0,0.5);
}

.tools-dropdown-panel.open,
#settings-dropdown-panel.open,
#help-dropdown-panel.open {
    max-height: 400px;
    opacity: 1;
    pointer-events: auto;
}

.module-toggle-item {
    display: flex;
    align-items: center;
    padding: 6px 8px;
    margin-bottom: 4px;
    background: var(--bg-input);
    border: 1px solid var(--border-light);
    transition: all 0.2s ease;
}

.module-toggle-item:hover {
    border-color: var(--accent-primary);
    background: rgba(0, 243, 255, 0.05);
}

.module-toggle-item input[type="checkbox"] {
    margin-right: 8px;
    cursor: pointer;
    width: 16px;
    height: 16px;
    accent-color: var(--accent-primary);
}

.module-toggle-item label {
    cursor: pointer;
    flex: 1;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    user-select: none;
}

.module-toggle-item:hover label {
    color: var(--accent-primary);
}

/* ==================== TUTORIAL SYSTEM ==================== */
.tutorial-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    z-index: 9998;
    display: none;
    pointer-events: none;
}

.tutorial-overlay.active {
    display: block;
}

.tutorial-highlight {
    position: absolute;
    border: 3px solid var(--accent-primary);
    box-shadow: 0 0 20px var(--accent-primary), inset 0 0 20px rgba(0, 243, 255, 0.2);
    pointer-events: none;
    z-index: 9999;
    animation: pulse-highlight 2s infinite;
}

@keyframes pulse-highlight {
    0%, 100% { box-shadow: 0 0 20px var(--accent-primary), inset 0 0 20px rgba(0, 243, 255, 0.2); }
    50% { box-shadow: 0 0 40px var(--accent-primary), inset 0 0 40px rgba(0, 243, 255, 0.3); }
}

.tutorial-tooltip {
    position: fixed;
    background: var(--bg-panel);
    border: 2px solid var(--accent-primary);
    padding: 16px 20px;
    max-width: 400px;
    z-index: 10000;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.8);
    font-family: var(--font-ui);
    display: none;
}

.tutorial-tooltip.active {
    display: block;
}

.tutorial-tooltip-title {
    font-family: var(--font-tech);
    font-size: 0.9rem;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 6px;
}

.tutorial-tooltip-content {
    color: var(--text-main);
    font-size: 0.85rem;
    line-height: 1.5;
    margin-bottom: 12px;
}

.tutorial-tooltip-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

.tutorial-tooltip-actions button {
    padding: 6px 12px;
    font-size: 0.75rem;
}

/* Demo Mode Hover Tooltips */
.demo-tooltip {
    position: absolute;
    background: var(--bg-panel);
    border: 1px solid var(--accent-primary);
    padding: 12px 16px;
    max-width: 300px;
    z-index: 10001;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.7);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s ease;
    font-family: var(--font-ui);
    font-size: 0.8rem;
    line-height: 1.4;
    color: var(--text-main);
}

.demo-tooltip.show {
    opacity: 1;
}

.demo-tooltip-title {
    font-family: var(--font-tech);
    font-size: 0.75rem;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

/* Easy Mode Indicator */
.easy-mode-badge {
    position: fixed;
    top: 60px;
    right: 20px;
    background: var(--accent-secondary);
    color: #000;
    padding: 8px 16px;
    font-family: var(--font-tech);
    font-size: 0.75rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    z-index: 9997;
    box-shadow: 0 4px 12px rgba(52, 211, 153, 0.4);
    animation: badge-glow 2s infinite;
}

/* Input Mode Toggle Buttons */
.input-mode-btn {
    background: var(--bg-lighter);
    border: 1px solid var(--border-main);
    color: var(--text-dim);
    padding: 6px 12px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-ui);
}

.input-mode-btn:hover {
    background: var(--bg-panel);
    border-color: var(--accent-primary);
    color: var(--text-main);
}

.input-mode-btn.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: #000;
    font-weight: bold;
}

/* Word Analysis Panel */
.word-analysis-panel {
    position: fixed;
    top: 80px;
    right: -350px;
    width: 340px;
    max-height: calc(100vh - 100px);
    background: var(--bg-panel);
    border: 1px solid var(--accent-primary);
    box-shadow: -4px 0 16px rgba(0, 0, 0, 0.7);
    z-index: 9000;
    transition: right 0.3s ease;
    display: flex;
    flex-direction: column;
}

.word-analysis-panel.active {
    right: 20px;
}

/* Word Settings Panel */
.word-settings-panel {
    position: fixed;
    top: 80px;
    right: -350px;
    width: 340px;
    max-height: calc(100vh - 100px);
    background: var(--bg-panel);
    border: 1px solid var(--border-main);
    box-shadow: -4px 0 16px rgba(0, 0, 0, 0.7);
    z-index: 9000;
    transition: right 0.3s ease;
    display: flex;
    flex-direction: column;
}

.word-settings-panel.active {
    right: 20px;
}

.word-analysis-panel .panel-header,
.word-settings-panel .panel-header {
    background: var(--bg-darker);
    border-bottom: 1px solid var(--border-light);
    padding: 12px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-tech);
    font-size: 0.85rem;
    color: var(--text-main);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.word-analysis-panel .panel-content,
.word-settings-panel .panel-content {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
}

.analysis-empty {
    color: var(--text-dim);
    font-style: italic;
    text-align: center;
    padding: 24px;
}

.analysis-section {
    margin-bottom: 16px;
    padding: 12px;
    background: var(--bg-lighter);
    border: 1px solid var(--border-main);
}

.analysis-section-title {
    font-family: var(--font-tech);
    font-size: 0.75rem;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.analysis-item {
    display: flex;
    justify-content: space-between;
    padding: 4px 0;
    font-size: 0.85rem;
}

.analysis-item-label {
    color: var(--text-dim);
}

.analysis-item-value {
    color: var(--text-main);
    font-weight: bold;
}

.archetype-match {
    background: var(--bg-darker);
    border: 1px solid var(--accent-secondary);
    padding: 8px;
    margin-top: 8px;
}

.archetype-match-title {
    color: var(--accent-secondary);
    font-weight: bold;
    margin-bottom: 4px;
}

.archetype-match-confidence {
    color: var(--text-dim);
    font-size: 0.8rem;
}

/* Settings Panel Specific */
.setting-group {
    margin-bottom: 20px;
}

.setting-group label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-main);
    margin-bottom: 8px;
    font-family: var(--font-tech);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.75rem;
}

.weight-slider {
    width: 100%;
    height: 6px;
    background: var(--bg-lighter);
    border: 1px solid var(--border-main);
    outline: none;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
}

.weight-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: var(--accent-primary);
    cursor: pointer;
    border-radius: 50%;
}

.weight-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: var(--accent-primary);
    cursor: pointer;
    border-radius: 50%;
    border: none;
}

.weight-value {
    display: inline-block;
    margin-left: 8px;
    color: var(--accent-primary);
    font-weight: bold;
    min-width: 40px;
}

#reset-weights-btn {
    width: 100%;
    margin-top: 8px;
}

@keyframes badge-glow {
    0%, 100% { box-shadow: 0 4px 12px rgba(52, 211, 153, 0.4); }
    50% { box-shadow: 0 4px 20px rgba(52, 211, 153, 0.7); }
}

.demo-mode-badge {
    position: fixed;
    top: 100px;
    right: 20px;
    background: var(--accent-primary);
    color: #000;
    padding: 8px 16px;
    font-family: var(--font-tech);
    font-size: 0.75rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    z-index: 9997;
    box-shadow: 0 4px 12px rgba(96, 165, 250, 0.4);
}

/* Tutorial Step Counter */
.tutorial-progress {
    position: fixed;
    top: 60px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-panel);
    border: 1px solid var(--accent-primary);
    padding: 8px 20px;
    font-family: var(--font-tech);
    font-size: 0.75rem;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    z-index: 9997;
    display: none;
}

.tutorial-progress.active {
    display: block;
}