/* capo-styles.css - نسخه نهایی کامل */

:root {
    --capo-primary: #2196F3;
    --capo-primary-dark: #1976D2;
    --capo-primary-light: #64B5F6;
    --capo-primary-soft: rgba(33, 150, 243, 0.1);
    --capo-primary-gradient: linear-gradient(135deg, #2196F3 0%, #1565C0 100%);
    --capo-bg: #ffffff;
    --capo-bg-secondary: #f5f7fa;
    --capo-border: #e2e8f0;
    --capo-text: #1e293b;
    --capo-text-light: #64748b;
    --capo-success: #10b981;
    --capo-warning: #f59e0b;
    --capo-info: #3b82f6;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   حالت دارک مود کامل
   ============================================ */
@media (prefers-color-scheme: dark) {
    :root {
        --capo-bg: #1e293b;
        --capo-bg-secondary: #0f172a;
        --capo-border: #334155;
        --capo-text: #f1f5f9;
        --capo-text-light: #94a3b8;
    }
    
    .chord-toggle span {
        color: #647687 !important;
    }
    .toggle-status {
        color: #f1f5f9 !important;
    }
    .slider {
        background-color: #475569;
    }
    .slider:before {
        background-color: #f1f5f9;
    }
    .capo-control-section {
        background: #1e293b;
    }
    .capo-fret-btn {
        background: #334155;
        border-color: #475569;
        color: #f1f5f9;
    }
    .capo-fret-btn.active {
        background: var(--capo-primary-gradient);
        border-color: var(--capo-primary);
        color: white;
    }
    .capo-fret-btn:hover {
        background: #475569;
    }
    .capo-fret-btn.suggested {
        background: rgba(33, 150, 243, 0.2);
        border-color: var(--capo-primary-light);
    }
    .capo-key-display {
        background: #0f172a;
        border-color: #334155;
    }
    .capo-key-display-value {
        color: #64B5F6;
    }
    .capo-suggestion-note {
        background: rgba(59, 130, 246, 0.15);
        color: #90caf9;
        border-color: rgba(59, 130, 246, 0.2);
    }
    .capo-note {
        background: #0f172a;
        color: #94a3b8;
    }
    .capo-msg.success {
        background: rgba(16, 185, 129, 0.15);
        color: #34d399;
    }
    .capo-msg.info {
        background: rgba(59, 130, 246, 0.15);
        color: #90caf9;
    }
    .capo-msg.warning {
        background: rgba(245, 158, 11, 0.15);
        color: #fbbf24;
    }
    .capo-link {
        color: #64B5F6;
    }
    .capo-link:hover {
        color: #90caf9;
    }
    .capo-ai-badge {
        background: var(--capo-primary-gradient);
        color: white;
    }
    .capo-tools-container {
        background: #0f172a;
        border-color: #334155;
    }
    .capo-tools-title {
        color: #f1f5f9;
    }
    .capo-tools-description {
        color: #94a3b8;
    }
    .capo-tool-btn.tuner {
        background: var(--capo-primary-gradient);
        color: white;
    }
    .capo-tool-btn.metronome {
        background: #f59e0b;
        color: white;
    }
}

/* ============================================
   دکمه اصلی و کاپو
   ============================================ */
.chord-toggle {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.chord-toggle:first-of-type {
    border-top: 1px solid var(--capo-border);
    padding-top: 16px;
}

.chord-toggle.capo-toggle {
    margin-top: 0;
    padding-top: 16px;
    border-top: 1px solid var(--capo-border);
}

.chord-toggle img {
    width: auto;
    height: 24px;
    vertical-align: middle;
    opacity: 0.8;
    transition: var(--transition);
}

.chord-toggle:hover img {
    opacity: 1;
}

.chord-toggle span {
    margin-left: 5px;
    font-size: 14px;
    font-weight: 500;
    color: var(--capo-text);
}

/* ============================================
   سوئیچ
   ============================================ */
.switch {
    position: relative;
    display: inline-block;
    width: 52px;
    height: 28px;
    flex-shrink: 0;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #cbd5e1;
    transition: var(--transition);
    border-radius: 28px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 24px;
    width: 24px;
    left: 2px;
    bottom: 2px;
    background-color: white;
    transition: var(--transition);
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
}

.switch.active .slider {
    background: var(--capo-primary-gradient);
    box-shadow: 0 0 0 3px var(--capo-primary-soft);
}

.switch.active .slider:before {
    transform: translateX(24px);
}

.switch:hover .slider {
    background-color: #94a3b8;
}

.switch.active:hover .slider {
    background-color: var(--capo-primary-dark);
}

.toggle-status {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 10px;
    font-weight: 600;
    color: #475569;
    pointer-events: none;
    white-space: nowrap;
    transition: var(--transition);
}

.switch.active .toggle-status {
    display: none;
}

/* ============================================
   بخش کنترل کاپو
   ============================================ */
.capo-control-section {
    position: relative;
    margin: 16px 0 24px;
    padding: 18px 20px 16px;
    background: var(--capo-bg);
    border-radius: 24px;
    border-right: 4px solid var(--capo-primary);
    box-shadow: var(--shadow-md);
    animation: slideDown 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.capo-control-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(33, 150, 243, 0.05), transparent 60%);
    pointer-events: none;
    animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.1); }
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-15px); }
    to { opacity: 1; transform: translateY(0); }
}

.capo-message {
    position: relative;
    font-size: 13px;
    font-weight: 500;
    color: var(--capo-text);
    margin-bottom: 14px;
    line-height: 1.5;
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    z-index: 1;
}

.capo-message strong {
    color: var(--capo-primary);
    background: var(--capo-primary-soft);
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 12px;
}

/* ============================================
   دکمه‌های عددی فرت
   ============================================ */
.capo-fret-selector {
    position: relative;
    margin: 12px 0;
    z-index: 1;
}

.capo-fret-selector label {
    display: block;
    font-weight: 600;
    color: var(--capo-text);
    font-size: 13px;
    margin-bottom: 10px;
    text-align: center;
}

.capo-fret-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
}

.capo-fret-btn {
    position: relative;
    min-width: 44px;
    padding: 8px 14px;
    border: 2px solid var(--capo-border);
    border-radius: 14px;
    background: var(--capo-bg);
    color: var(--capo-text);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    font-family: inherit;
}

.capo-fret-btn:not(.active) {
    transform: scale(0.95);
    opacity: 0.7;
}

.capo-fret-btn.active {
    transform: scale(1.08);
    opacity: 1;
    background: var(--capo-primary-gradient);
    border-color: var(--capo-primary);
    color: white;
    box-shadow: 0 4px 16px rgba(33, 150, 243, 0.3);
}

.capo-fret-btn.suggested {
    border-color: var(--capo-primary-light);
    background: var(--capo-primary-soft);
}

.capo-fret-btn.active::after {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 16px;
    background: var(--capo-primary-gradient);
    opacity: 0.25;
    filter: blur(6px);
    z-index: -1;
    animation: glowPulse 2s ease-in-out infinite;
}

.capo-fret-btn.suggested::before {
    content: '✨';
    position: absolute;
    top: -8px;
    right: -6px;
    font-size: 11px;
    animation: sparkle 2s ease-in-out infinite;
}

@keyframes sparkle {
    0%, 100% { transform: scale(1) rotate(0deg); opacity: 1; }
    50% { transform: scale(1.3) rotate(20deg); opacity: 0.8; }
}

.capo-fret-btn:hover {
    transform: scale(1.03) !important;
    border-color: var(--capo-primary-light);
    box-shadow: var(--shadow-sm);
}

.capo-fret-btn.active:hover {
    transform: scale(1.1) !important;
}

.capo-fret-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: scale(0.95) !important;
}

/* ============================================
   نمایش گام انتخاب شده
   ============================================ */
.capo-key-display {
    display: none;
    margin: 12px 0 6px;
    padding: 8px 14px;
    background: var(--capo-bg-secondary);
    border-radius: 14px;
    text-align: center;
    direction: rtl;
    border: 1px solid var(--capo-border);
    animation: fadeInUp 0.4s ease-out;
}

.capo-key-display.visible {
    display: block;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.capo-key-display-label {
    font-size: 11px;
    color: var(--capo-text-light);
    display: block;
    margin-bottom: 2px;
}

.capo-key-display-value {
    font-size: 22px;
    font-weight: 800;
    color: var(--capo-primary);
    letter-spacing: 0.5px;
    unicode-bidi: bidi-override;
    direction: ltr;
    display: inline-block;
}

/* ============================================
   پیام‌ها
   ============================================ */
.capo-suggestion-note {
    position: relative;
    font-size: 12px;
    margin: 10px 0 6px;
    padding: 8px 14px;
    background: var(--capo-info-bg);
    border-radius: 14px;
    text-align: center;
    color: var(--capo-info);
    font-weight: 500;
    line-height: 1.5;
    z-index: 1;
    border: 1px solid rgba(59, 130, 246, 0.08);
}

.capo-note {
    position: relative;
    font-size: 11px;
    color: var(--capo-text-light);
    margin-top: 8px;
    padding: 8px 12px;
    background: var(--capo-bg-secondary);
    border-radius: 12px;
    text-align: center;
    line-height: 1.5;
    z-index: 1;
}

/* ============================================
   ★★★ بخش تیونر و مترونوم ★★★
   ============================================ */
.capo-tools-container {
    display: none;
    margin-top: 12px;
    padding: 14px 16px;
    background: var(--capo-bg-secondary);
    border-radius: 16px;
    border: 1px solid var(--capo-border);
    direction: rtl;
    text-align: right;
    animation: fadeInUp 0.5s ease-out;
}

.capo-tools-container.visible {
    display: block;
}

.capo-tools-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--capo-text);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.capo-tools-title span {
    font-size: 18px;
}

.capo-tools-description {
    font-size: 12px;
    color: var(--capo-text-light);
    line-height: 1.6;
    margin-bottom: 12px;
}

.capo-tools-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.capo-tool-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 40px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.capo-tool-btn.tuner {
    background: var(--capo-primary-gradient);
    color: white;
    box-shadow: 0 2px 10px rgba(33, 150, 243, 0.25);
}

.capo-tool-btn.tuner:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(33, 150, 243, 0.35);
    color: white;
}

.capo-tool-btn.metronome {
    background: var(--capo-warning);
    color: white;
    box-shadow: 0 2px 10px rgba(245, 158, 11, 0.25);
}

.capo-tool-btn.metronome:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(245, 158, 11, 0.35);
    color: white;
}

.capo-tool-btn svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
    flex-shrink: 0;
}

/* ============================================
   آیکون هوش مصنوعی
   ============================================ */
.capo-ai-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px 3px 6px;
    background: var(--capo-primary-gradient);
    color: white;
    border-radius: 20px;
    font-size: 9px;
    font-weight: 600;
    margin-right: 4px;
    animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.capo-ai-badge svg {
    width: 12px;
    height: 12px;
    fill: white;
    animation: spinSlow 8s linear infinite;
}

@keyframes spinSlow {
    to { transform: rotate(360deg); }
}

/* ============================================
   لودینگ و پیام‌ها
   ============================================ */
.capo-loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    margin-right: 6px;
    border: 2px solid var(--capo-border);
    border-top-color: var(--capo-primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    vertical-align: middle;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.capo-msg {
    position: relative;
    font-size: 12px;
    margin-top: 10px;
    padding: 8px 12px;
    border-radius: 12px;
    text-align: center;
    font-weight: 500;
    animation: fadeIn 0.3s ease-out;
    z-index: 1;
}

.capo-msg.success {
    background: var(--capo-success-bg);
    color: var(--capo-success);
}

.capo-msg.warning {
    background: var(--capo-warning-bg);
    color: var(--capo-warning);
}

.capo-msg.info {
    background: var(--capo-info-bg);
    color: var(--capo-info);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   ریسپانسیو
   ============================================ */
@media (max-width: 992px) {
    .capo-control-section { padding: 16px 16px 14px; }
    .capo-fret-btn { min-width: 40px; padding: 7px 12px; font-size: 13px; }
    .capo-key-display-value { font-size: 20px; }
}

@media (max-width: 768px) {
    .chord-toggle { gap: 10px; }
    .switch { width: 46px; height: 24px; }
    .slider:before { height: 20px; width: 20px; }
    .switch.active .slider:before { transform: translateX(22px); }
    .toggle-status { font-size: 9px; }
    
    .capo-control-section { padding: 14px 14px 12px; border-radius: 20px; }
    .chord-toggle img { height: 20px; }
    .chord-toggle span { font-size: 13px; }
    .capo-message { font-size: 12px; margin-bottom: 12px; }
    
    .capo-fret-buttons { gap: 8px; }
    .capo-fret-btn { min-width: 38px; padding: 6px 10px; font-size: 12px; border-radius: 12px; }
    .capo-fret-btn.active { transform: scale(1.06); }
    .capo-fret-btn:not(.active) { transform: scale(0.92); }
    
    .capo-key-display-value { font-size: 18px; }
    .capo-key-display { padding: 6px 12px; }
    
    .capo-suggestion-note { font-size: 11px; padding: 6px 10px; }
    .capo-note { font-size: 10px; padding: 6px 10px; }
    .capo-msg { font-size: 11px; padding: 6px 10px; }
    
    .capo-tools-container { padding: 12px 14px; }
    .capo-tools-title { font-size: 12px; }
    .capo-tools-description { font-size: 11px; }
    .capo-tools-buttons { flex-direction: column; align-items: stretch; }
    .capo-tool-btn { justify-content: center; padding: 10px 16px; font-size: 12px; }
}

@media (max-width: 480px) {
    .capo-control-section { padding: 12px 12px 10px; border-radius: 16px; }
    .capo-message { font-size: 11px; }
    .capo-fret-buttons { gap: 6px; }
    .capo-fret-btn { min-width: 34px; padding: 5px 8px; font-size: 11px; border-radius: 10px; }
    .capo-fret-btn.suggested::before { font-size: 9px; top: -6px; right: -4px; }
    .capo-key-display-value { font-size: 16px; }
    
    .capo-tools-container { padding: 10px 12px; }
    .capo-tools-title { font-size: 11px; }
    .capo-tools-description { font-size: 10px; }
    .capo-tool-btn { font-size: 11px; padding: 8px 14px; }
    .capo-tool-btn svg { width: 16px; height: 16px; }
}

@media (min-width: 1920px) {
    .capo-control-section { padding: 24px 28px 20px; border-radius: 32px; }
    .capo-fret-btn { min-width: 56px; padding: 12px 20px; font-size: 18px; border-radius: 18px; }
    .capo-key-display-value { font-size: 28px; }
    .capo-message { font-size: 16px; }
    .capo-suggestion-note { font-size: 14px; }
    .capo-tools-title { font-size: 16px; }
    .capo-tools-description { font-size: 14px; }
    .capo-tool-btn { font-size: 16px; padding: 14px 28px; }
}