/* style.css — Guitar Chords UI Styling */
/* Fix-Slice GC-MR-011: Fretboard Coach UX adaptiert */
/* Ruhiges Griffbrett, unsichtbare Hit-Areas, sichtbare Dots nur bei Auswahl */

/* ============================================================================
   CSS VARIABLES
   ============================================================================ */

:root {
    /* Neutral Base Colors */
    --bg-primary: #1a1a1a;
    --bg-secondary: #252525;
    --bg-tertiary: #2d2d2d;
    --bg-hover: #353535;
    
    /* Text Colors */
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --text-muted: #606060;
    
    /* Accent Colors for Status/Intervals */
    --accent-exact: #4caf50;
    --accent-complete: #8bc34a;
    --accent-partial: #ffc107;
    --accent-unknown: #757575;
    --accent-ambiguous: #2196f3;
    
    /* Fretboard Colors (wie Fretboard Coach) */
    --fretboard-bg: #1a1a1a;
    --string-color: rgba(255,160,40,0.65);
    --fret-color: #6a3010;
    --fret-text: #d07030;
    --fret-text-active: #ffffff;
    
    /* Borders and Shadows */
    --border-color: #3a3a3a;
    --border-radius: 4px;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-mono: 'Courier New', Courier, monospace;
}

/* ============================================================================
   RESET AND BASE
   ============================================================================ */

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.4;
    min-height: 100vh;
}

/* ============================================================================
   APP CONTAINER
   ============================================================================ */

.app-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--spacing-md);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ============================================================================
   BACK LINK
   ============================================================================ */

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.02em;
    color: var(--text-muted);
    text-decoration: none;
    margin-bottom: var(--spacing-md);
    transition: color 0.15s;
}

.back-link:hover {
    color: var(--text-secondary);
}

/* ============================================================================
   HEADER
   ============================================================================ */

.header {
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.header h1 {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--text-primary);
    letter-spacing: 0;
}

/* ============================================================================
   MAIN CONTENT
   ============================================================================ */

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* ============================================================================
   FRETBOARD SECTION
   ============================================================================ */

.fretboard-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.fretboard-container {
    width: 100%;
    max-width: 600px;
    aspect-ratio: 600 / 148;
    background-color: var(--fretboard-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    position: relative;
}

.fretboard-svg {
    width: 100%;
    height: 100%;
    display: block;
}

/* Fretboard SVG Elements
   (GC-CL-001: gezielte Klassen statt Pauschalregeln — die alten Regeln
   ueberschrieben u.a. die Dot-Label-Farbe und die Root-Akzente) */
.fretboard-svg line.string-line {
    stroke: var(--string-color);
}

.fretboard-svg line.fret-line {
    stroke: var(--fret-color);
}

.fretboard-svg rect.nut {
    fill: #888;
    stroke: none;
}

.fretboard-svg text {
    fill: var(--fret-text);
    font-size: 10px;
    font-family: var(--font-mono);
    text-anchor: middle;
    dominant-baseline: middle;
    pointer-events: none;
}

/* ============================================================================
   VISIBLE DOTS (nur für ausgewählte Positionen)
   ============================================================================ */

.visible-dot {
    pointer-events: none;
    stroke: rgba(0, 0, 0, 0.55);
    stroke-width: 2;
}

/* Root-Akzent: heller Ring + Glow (Fill bleibt Pitch-Class-Farbe) */
.visible-dot.is-root {
    stroke: #ffffff;
    stroke-width: 3;
    filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.7));
}

/* Pitch Class Colors für sichtbare Dots */
.visible-dot.pc-0 { fill: #4caf50; }
.visible-dot.pc-1 { fill: #489d48; }
.visible-dot.pc-2 { fill: #8bc34a; }
.visible-dot.pc-3 { fill: #82b046; }
.visible-dot.pc-4 { fill: #cddc39; }
.visible-dot.pc-5 { fill: #ffc107; }
.visible-dot.pc-6 { fill: #ffb300; }
.visible-dot.pc-7 { fill: #ff9800; }
.visible-dot.pc-8 { fill: #f57c00; }
.visible-dot.pc-9 { fill: #ff5722; }
.visible-dot.pc-10 { fill: #e64a19; }
.visible-dot.pc-11 { fill: #9c27b0; }

/* ============================================================================
   HIT AREAS (unsichtbare Klickzonen)
   ============================================================================ */

.hit-area {
    fill: transparent;
    stroke: none;
    pointer-events: all;
    cursor: pointer;
    transition: fill 0.15s ease;
}

.hit-area:hover {
    fill: rgba(255, 255, 255, 0.05);
}

/* ============================================================================
   DOT LABELS (Notennamen auf ausgewählten Dots)
   ============================================================================ */

/* Hoehere Spezifitaet als .fretboard-svg text, sonst gewinnt die Textregel */
.fretboard-svg text.dot-label {
    pointer-events: none;
    font-size: 9px;
    font-weight: 700;
    fill: #0a0f14;
    text-anchor: middle;
    dominant-baseline: middle;
}

/* ============================================================================
   RESULTS SECTION
   ============================================================================ */

.results-section {
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
}

.result-primary {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.chord-symbol {
    font-size: 2.5rem;
    font-weight: 300;
    color: var(--text-primary);
    font-family: var(--font-mono);
    letter-spacing: 0;
}

.status-badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0;
    font-family: var(--font-mono);
}

.status-badge.exact { background-color: var(--accent-exact); color: #1a1a1a; }
.status-badge.complete { background-color: var(--accent-complete); color: #1a1a1a; }
.status-badge.partial { background-color: var(--accent-partial); color: #1a1a1a; }
.status-badge.unknown { background-color: var(--accent-unknown); color: var(--text-primary); }
.status-badge.ambiguous { background-color: var(--accent-ambiguous); color: #ffffff; }
.status-badge.selected { background-color: var(--bg-hover); color: var(--text-secondary); border: 1px solid var(--border-color); }

.result-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.result-details div {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-sm);
    font-size: 0.9rem;
}

.result-details .notes-label,
.result-details .bass-label,
.result-details .intervals-label {
    color: var(--text-secondary);
    font-family: var(--font-mono);
    min-width: 60px;
}

.result-details .notes-values,
.result-details .bass-values,
.result-details .intervals-values {
    color: var(--text-primary);
    font-family: var(--font-mono);
}

/* Alternatives */
.alternatives {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.alternatives-label {
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-family: var(--font-mono);
}

.alternatives-values {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.alternatives-values .alt-chord {
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--bg-tertiary);
    border-radius: var(--border-radius);
}

/* ============================================================================
   ROOT SELECTION SECTION
   ============================================================================ */

.root-section {
    background-color: var(--bg-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.root-container {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.root-notes {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
    justify-content: center;
}

.root-note-button {
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-family: var(--font-mono);
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 40px;
}

.root-note-button:hover {
    background-color: var(--bg-hover);
    border-color: var(--text-muted);
}

.root-note-button.active {
    background-color: var(--accent-exact);
    border-color: var(--accent-exact);
    color: #000;
    font-weight: bold;
}

.notation-toggle {
    display: flex;
    margin-left: var(--spacing-md);
}

/* ============================================================================
   QUALITY SELECTION SECTION
   ============================================================================ */

.quality-section {
    background-color: var(--bg-secondary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.quality-tabs {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
}

.quality-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.quality-group-title {
    color: var(--text-muted);
    font-size: 0.8rem;
    font-family: var(--font-mono);
    padding: 0 var(--spacing-xs);
}

.quality-button {
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 0.85rem;
    font-family: var(--font-mono);
    cursor: pointer;
    transition: all 0.2s ease;
}

.quality-button:hover {
    background-color: var(--bg-hover);
    border-color: var(--text-muted);
}

.quality-button.active {
    background-color: var(--accent-complete);
    border-color: var(--accent-complete);
    color: #000;
    font-weight: bold;
}

/* ============================================================================
   VOICINGS SECTION (GC-MR-020: Gross und vertikal)
   ============================================================================ */

.voicings-section {
    background-color: var(--bg-secondary);
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.voicings-container {
    max-width: 800px;
    margin: 0 auto;
}

.voicings-title {
    color: var(--text-primary);
    font-size: 1rem;
    font-family: var(--font-family);
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

/* GC-MR-020: Voicing-Liste VERTIKAL (nicht horizontal) */
.voicings-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
}

/* GC-MR-020: Jedes Voicing-Item hat volle Breite */
.voicing-item {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
    max-width: 620px;
}

.voicing-item:hover {
    background-color: var(--bg-hover);
    border-color: var(--text-muted);
}

/* Aktives Voicing (entspricht exakt der Board-Auswahl) */
.voicing-item.active {
    border-color: var(--accent-exact);
}

/* GC-MR-020: Grosser Voicing-Board Container */
.voicing-board-container {
    width: 100%;
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
}

/* GC-MR-020: Grosses Voicing-Board SVG (600x148 wie Hauptboard) */
.voicing-board-container svg.voicing-board-svg {
    width: 100%;
    height: auto;
    display: block;
    aspect-ratio: 600 / 148;
    min-height: 148px;
}

/* Legacy Mini-Fretboard (Fallback) */
.voicing-mini-fretboard {
    width: 100%;
    height: 60px;
    margin-bottom: var(--spacing-xs);
    overflow: hidden;
}

.voicing-mini-fretboard svg {
    width: 100%;
    height: 100%;
}

.voicing-name {
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: var(--font-mono);
    font-weight: bold;
    text-align: center;
    margin-bottom: var(--spacing-xs);
}

.voicing-info {
    color: var(--text-muted);
    font-size: 0.75rem;
    font-family: var(--font-mono);
    text-align: center;
}

.voicings-empty {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-family: var(--font-family);
    text-align: center;
    padding: var(--spacing-md);
}

/* ============================================================================
   LEADSHEET SECTION (Slice 4)
   ============================================================================ */

.leadsheet-section {
    background-color: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
}

.leadsheet-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.leadsheet-title {
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 500;
}

.leadsheet-actions {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.leadsheet-actions .control-button {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.85rem;
}

.leadsheet-actions .control-button:disabled {
    opacity: 0.4;
    cursor: default;
}

.leadsheet-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    align-items: center;
    min-height: 40px;
}

.leadsheet-empty {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.ls-chip {
    display: inline-flex;
    align-items: stretch;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.ls-chip button {
    background: none;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-mono);
    cursor: pointer;
    padding: var(--spacing-xs) var(--spacing-sm);
    transition: background-color 0.15s ease;
}

.ls-chip button:hover:not(:disabled) {
    background-color: var(--bg-hover);
}

.ls-chip button:disabled {
    opacity: 0.3;
    cursor: default;
}

.ls-chip .ls-symbol {
    font-weight: bold;
    font-size: 0.95rem;
}

.ls-chip .ls-move {
    font-size: 0.6rem;
    color: var(--text-secondary);
    border-left: 1px solid var(--border-color);
}

.ls-chip .ls-remove {
    font-size: 0.9rem;
    color: var(--text-secondary);
    border-left: 1px solid var(--border-color);
}

.ls-chip .ls-remove:hover {
    color: #ff6b5e;
}

/* ============================================================================
   CONTROLS SECTION
   ============================================================================ */

.controls-section {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.control-button {
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-family: var(--font-mono);
    cursor: pointer;
    transition: all 0.2s ease;
}

.control-button:hover {
    background-color: var(--bg-hover);
    border-color: var(--text-muted);
}

.control-button:active {
    background-color: var(--fretboard-bg);
}

/* Segmented Controls */
.control-button.segmented {
    border-radius: 0;
}

.control-button.segmented:first-of-type {
    border-top-left-radius: var(--border-radius);
    border-bottom-left-radius: var(--border-radius);
}

.control-button.segmented:last-of-type {
    border-top-right-radius: var(--border-radius);
    border-bottom-right-radius: var(--border-radius);
}

.control-button.segmented:not(:first-of-type) {
    border-left: none;
    margin-left: -1px;
}

.control-button.segmented:not(:first-of-type):hover {
    border-left: none;
}

.control-button.active.segmented {
    background-color: var(--bg-hover);
    border-color: var(--text-muted);
}

.control-button#clear-button {
    border-color: var(--accent-unknown);
    color: var(--accent-unknown);
}

.control-button#clear-button:hover {
    background-color: rgba(117, 117, 117, 0.3);
    border-color: var(--accent-unknown);
}

/* ============================================================================
   RESPONSIVE DESIGN
   ============================================================================ */

@media (max-width: 600px) {
    .app-container {
        padding: var(--spacing-sm);
    }

    .header h1 {
        font-size: 1.25rem;
    }

    .chord-symbol {
        font-size: 2rem;
    }

    .result-primary {
        flex-direction: column;
        align-items: flex-start;
    }

    .fretboard-container {
        aspect-ratio: 600 / 148;
    }

    .controls-section {
        gap: var(--spacing-xs);
    }

    .control-button {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.85rem;
    }
}

@media (min-width: 601px) and (max-width: 800px) {
    .chord-symbol {
        font-size: 2.25rem;
    }

    .fretboard-container {
        aspect-ratio: 600 / 148;
    }
}

@media (min-width: 801px) {
    .chord-symbol {
        font-size: 3rem;
    }

    .result-details div {
        font-size: 1rem;
    }

    .alternatives-values {
        font-size: 0.95rem;
    }
}

/* ============================================================================
   PRINT STYLES
   ============================================================================ */

@media print {
    body {
        background-color: white;
        color: black;
    }

    .app-container {
        max-width: none;
        padding: 0;
    }

    .chord-symbol {
        color: black;
    }

    .result-details * {
        color: black;
    }
}