/* =============================================
   ARTIST WAVE BUTTONS - ConincStudio™
   Complete button system for Artist Dashboard Wave
   
   Prefix: wave-btn
   Scoped to: Hero, Track Library, Upload Panel
   Palette: #F5B301 (Gold) | #FF8C42 (Orange)
            #9D4DFF (Purple) | #00E6D7 (Teal)
   ============================================= */

/* =============================================
   BASE BUTTON
   ============================================= */
.wave-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: 60px;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.4;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border: none;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.3px;
    white-space: nowrap;
    user-select: none;
    min-height: 44px;
    color: #120A1F;
}

.wave-btn .wave-btn-icon {
    font-size: 1.1rem;
    line-height: 1;
    flex-shrink: 0;
}

.wave-btn .wave-btn-label {
    flex: 1;
    text-align: center;
}

.wave-btn .wave-btn-badge {
    background: rgba(255, 255, 255, 0.15);
    padding: 0 8px;
    border-radius: 12px;
    font-size: 0.65rem;
    font-weight: 700;
    line-height: 1.6;
    margin-left: 4px;
}

/* =============================================
   BUTTON SIZES
   ============================================= */
.wave-btn-sm {
    padding: 6px 16px;
    font-size: 0.75rem;
    min-height: 32px;
    border-radius: 40px;
}

.wave-btn-sm .wave-btn-icon {
    font-size: 0.85rem;
}

.wave-btn-lg {
    padding: 14px 36px;
    font-size: 1.05rem;
    min-height: 52px;
    border-radius: 70px;
}

.wave-btn-lg .wave-btn-icon {
    font-size: 1.3rem;
}

.wave-btn-xl {
    padding: 18px 48px;
    font-size: 1.2rem;
    min-height: 62px;
    border-radius: 80px;
}

.wave-btn-xl .wave-btn-icon {
    font-size: 1.5rem;
}

.wave-btn-block {
    width: 100%;
    justify-content: center;
}

/* =============================================
   1. PRIMARY GOLD BUTTON
   ============================================= */
.wave-btn-gold {
    background: linear-gradient(135deg, #F5B301, #FF8C42);
    color: #120A1F;
    box-shadow: 
        0 4px 20px rgba(245, 179, 1, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    font-weight: 700;
}

.wave-btn-gold::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.wave-btn-gold:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 
        0 8px 35px rgba(245, 179, 1, 0.4),
        0 0 60px rgba(245, 179, 1, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.wave-btn-gold:hover::before {
    opacity: 1;
}

.wave-btn-gold:active {
    transform: scale(0.97);
    box-shadow: 0 2px 10px rgba(245, 179, 1, 0.2);
}

/* =============================================
   2. GLASS BUTTON
   ============================================= */
.wave-btn-glass {
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: #EEEEEE;
    font-weight: 500;
}

.wave-btn-glass::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        rgba(245, 179, 1, 0.03),
        rgba(157, 77, 255, 0.03)
    );
    opacity: 0;
    transition: opacity 0.3s ease;
}

.wave-btn-glass:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(245, 179, 1, 0.2);
    transform: translateY(-2px);
    box-shadow: 
        0 4px 20px rgba(0, 0, 0, 0.3),
        0 0 30px rgba(245, 179, 1, 0.04);
    color: #FFFFFF;
}

.wave-btn-glass:hover::before {
    opacity: 1;
}

.wave-btn-glass:active {
    transform: scale(0.97);
}

/* =============================================
   3. SECONDARY OUTLINE GOLD
   ============================================= */
.wave-btn-outline {
    background: transparent;
    color: #F5B301;
    border: 2px solid #F5B301;
}

.wave-btn-outline:hover {
    background: rgba(245, 179, 1, 0.08);
    border-color: #FEC503;
    transform: translateY(-2px);
    box-shadow: 
        0 4px 25px rgba(245, 179, 1, 0.15),
        0 0 40px rgba(245, 179, 1, 0.05);
}

.wave-btn-outline:active {
    transform: scale(0.97);
}

/* =============================================
   4. PURPLE BUTTON (Creative)
   ============================================= */
.wave-btn-purple {
    background: linear-gradient(135deg, #9D4DFF, #7B2FBE);
    color: #FFFFFF;
    box-shadow: 
        0 4px 20px rgba(157, 77, 255, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.wave-btn-purple:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 
        0 8px 35px rgba(157, 77, 255, 0.4),
        0 0 60px rgba(157, 77, 255, 0.1);
}

.wave-btn-purple:active {
    transform: scale(0.97);
}

/* =============================================
   5. TEAL BUTTON (Confirmation)
   ============================================= */
.wave-btn-teal {
    background: linear-gradient(135deg, #00E6D7, #00B4A8);
    color: #120A1F;
    box-shadow: 
        0 4px 20px rgba(0, 230, 215, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.wave-btn-teal:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 
        0 8px 35px rgba(0, 230, 215, 0.4),
        0 0 60px rgba(0, 230, 215, 0.1);
}

.wave-btn-teal:active {
    transform: scale(0.97);
}

/* =============================================
   6. DANGER BUTTON
   ============================================= */
.wave-btn-danger {
    background: rgba(255, 68, 68, 0.08);
    color: #FF4444;
    border: 1px solid rgba(255, 68, 68, 0.15);
}

.wave-btn-danger:hover {
    background: rgba(255, 68, 68, 0.15);
    border-color: rgba(255, 68, 68, 0.3);
    transform: translateY(-2px);
    color: #FF6666;
}

.wave-btn-danger:active {
    transform: scale(0.97);
}

/* =============================================
   7. GHOST BUTTON (Minimal)
   ============================================= */
.wave-btn-ghost {
    background: transparent;
    border: none;
    color: #EEEEEE;
    opacity: 0.6;
    padding: 8px 16px;
}

.wave-btn-ghost:hover {
    opacity: 1;
    color: #F5B301;
    background: rgba(255, 255, 255, 0.04);
}

/* =============================================
   8. ICON-ONLY BUTTON
   ============================================= */
.wave-btn-icon-only {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.wave-btn-icon-only .wave-btn-icon {
    font-size: 1.1rem;
}

.wave-btn-icon-only.wave-btn-sm {
    width: 32px;
    height: 32px;
}

.wave-btn-icon-only.wave-btn-lg {
    width: 56px;
    height: 56px;
}

/* =============================================
   9. PLAY BUTTON (Special for tracks)
   ============================================= */
.wave-btn-play {
    background: #F5B301;
    border: none;
    color: #0A0A0A;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(245, 179, 1, 0.4);
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.wave-btn-play:hover {
    transform: scale(1.08);
    background: #FF8C42;
    box-shadow: 0 6px 30px rgba(255, 140, 66, 0.5);
}

.wave-btn-play:active {
    transform: scale(0.95);
}

.wave-btn-play::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.wave-btn-play:hover::before {
    opacity: 1;
}

.wave-btn-play.playing {
    background: #FF8C42;
    box-shadow: 
        0 6px 30px rgba(255, 140, 66, 0.5),
        0 0 40px rgba(255, 140, 66, 0.3);
    animation: playPulse 1.5s ease-in-out infinite;
}

@keyframes playPulse {
    0%, 100% {
        box-shadow: 
            0 6px 30px rgba(255, 140, 66, 0.5),
            0 0 40px rgba(255, 140, 66, 0.3);
    }
    50% {
        box-shadow: 
            0 6px 30px rgba(255, 140, 66, 0.7),
            0 0 60px rgba(255, 140, 66, 0.5);
    }
}

/* =============================================
   10. UPLOAD BUTTON (Dashed Border)
   ============================================= */
.wave-btn-upload {
    background: rgba(245, 179, 1, 0.05);
    border: 2px dashed rgba(245, 179, 1, 0.3);
    color: #F5B301;
    padding: 14px 28px;
    border-radius: 20px;
    transition: all 0.3s ease;
}

.wave-btn-upload:hover {
    background: rgba(245, 179, 1, 0.1);
    border-color: rgba(245, 179, 1, 0.6);
    border-style: solid;
    transform: translateY(-2px);
    box-shadow: 
        0 8px 25px rgba(245, 179, 1, 0.15),
        0 0 40px rgba(245, 179, 1, 0.05);
}

/* =============================================
   11. DISABLED STATE
   ============================================= */
.wave-btn:disabled,
.wave-btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
    pointer-events: none;
}

/* =============================================
   12. LOADING STATE
   ============================================= */
.wave-btn.loading {
    pointer-events: none;
    color: transparent;
    position: relative;
}

.wave-btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: 50%;
    animation: btnSpin 0.8s linear infinite;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #120A1F;
}

@keyframes btnSpin {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* =============================================
   13. FOCUS STATE (Accessibility)
   ============================================= */
.wave-btn:focus-visible {
    outline: 2px solid #F5B301;
    outline-offset: 2px;
}

/* =============================================
   14. HERO BUTTONS (Context-Specific)
   ============================================= */
.wave-hero-actions .wave-btn {
    min-height: 46px;
    padding: 12px 28px;
}

/* =============================================
   15. TRACK LIBRARY BUTTONS (Compact)
   ============================================= */
.wave-track-actions .wave-btn {
    padding: 6px 10px;
    min-height: 32px;
    min-width: 32px;
    border-radius: 8px;
    font-size: 0.85rem;
}

/* =============================================
   16. UPLOAD PANEL BUTTONS
   ============================================= */
.wave-upload-actions .wave-btn {
    flex: 1 0 auto;
    min-width: 140px;
}

.wave-upload-actions .wave-btn.wave-btn-gold {
    flex: 1 0 100%;
}

/* =============================================
   17. BUTTON GROUP
   ============================================= */
.wave-btn-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.wave-btn-group .wave-btn {
    flex: 1;
    min-width: 0;
}

.wave-btn-group-stacked {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* =============================================
   18. RESPONSIVE
   ============================================= */
@media (max-width: 768px) {
    .wave-btn {
        padding: 8px 18px;
        font-size: 0.85rem;
        min-height: 40px;
    }

    .wave-btn-lg {
        padding: 12px 28px;
        font-size: 0.95rem;
        min-height: 46px;
    }

    .wave-btn-sm {
        padding: 5px 12px;
        font-size: 0.7rem;
        min-height: 28px;
    }

    .wave-btn-icon-only {
        width: 40px;
        height: 40px;
    }

    .wave-btn-play {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .wave-hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .wave-hero-actions .wave-btn {
        width: 100%;
        justify-content: center;
    }

    .wave-upload-actions {
        flex-direction: column;
    }

    .wave-upload-actions .wave-btn {
        width: 100%;
        min-width: 0;
    }
}

@media (max-width: 480px) {
    .wave-btn {
        font-size: 0.8rem;
        padding: 8px 16px;
        min-height: 36px;
    }

    .wave-btn-sm {
        padding: 4px 10px;
        font-size: 0.65rem;
        min-height: 24px;
    }

    .wave-btn-play {
        width: 36px;
        height: 36px;
        font-size: 0.9rem;
    }

    .wave-btn-icon-only {
        width: 36px;
        height: 36px;
    }

    .wave-track-actions .wave-btn {
        min-width: 28px;
        min-height: 28px;
        padding: 4px 8px;
    }
}