/* CSS Variables for consistent theming */
:root {
    color-scheme: dark;

    /* Primary colors */
    --color-primary: #D4AF37;
    --color-primary-light: #D4AF3730;
    --color-primary-dark: #D4AF3715;

    /* Status colors */
    --color-error: #EF4444;
    --color-warning: #F59E0B;
    --color-info: #3B82F6;
    --color-queue: #6366F1;

    /* Section colors */
    --color-intro: #8B5CF6;
    --color-verse: #3B82F6;
    --color-chorus: #F59E0B;
    --color-bridge: #EC4899;
    --color-inst: #10B981;
    --color-outro: #EAB308;

    /* Background colors */
    --bg-dark: #0a0a0a;
    --bg-main: #111111;
    --bg-card: #1a1a1a;
    --bg-input: #151515;
    --bg-elevated: #1e1e1e;

    /* Border colors */
    --border-default: #3a3a3a;
    --border-hover: #4a4a4a;

    /* Text colors */
    --text-primary: #e0e0e0;
    --text-secondary: #888;
    --text-muted: #666;
    --text-dim: #555;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    background: var(--bg-main);
    font-family: 'Inter', -apple-system, sans-serif;
    color: var(--text-primary);
    min-height: 100vh;
}
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-default); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-hover); }

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 4px;
    background: var(--border-default);
    border-radius: 2px;
    outline: none;
}
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    background: var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
}

/* Text input with numeric styling */
input[type="text"][inputmode="numeric"] {
    background-color: var(--bg-input);
    border: 1px solid var(--border-default);
    border-radius: 6px;
    color: var(--color-primary);
    padding: 6px 8px;
    font-size: 13px;
    font-weight: 600;
    outline: none;
}
input[type="text"][inputmode="numeric"]:focus {
    border-color: var(--color-primary);
}

select {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 8L2 4h8z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
}

textarea::placeholder, input::placeholder {
    color: var(--text-dim);
}

/* Add Section Popup - fixed position */
.add-section-popup {
    position: fixed;
    background-color: var(--bg-elevated);
    border: 1px solid var(--border-default);
    border-radius: 12px;
    padding: 8px;
    z-index: 10000;
    min-width: 160px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.6);
}

.add-section-popup button {
    display: block;
    width: 100%;
    padding: 10px 14px;
    border-radius: 8px;
    border: none;
    background-color: transparent;
    cursor: pointer;
    text-align: left;
    font-size: 13px;
    font-weight: 500;
    transition: background 0.15s;
}

.add-section-popup button:hover {
    background-color: var(--border-default);
}

/* Pulse animation for generating indicator */
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

/* Indeterminate progress bar animation */
@keyframes indeterminate {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(400%);
    }
}

.progress-bar-indeterminate {
    position: relative;
    overflow: hidden;
    background: var(--border-default);
}

.progress-bar-indeterminate::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 30%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
    animation: indeterminate 1.5s ease-in-out infinite;
}

/* Waveform trimmer styles */
.waveform-container {
    background: var(--bg-dark);
    border-radius: 8px;
    padding: 12px;
    margin: 12px 0;
}

.waveform-container canvas {
    border-radius: 4px;
}

/* Custom select dropdown - remove default arrow */
.custom-select {
    -webkit-appearance: none !important;
    -moz-appearance: none !important;
    appearance: none !important;
    background-image: none !important;
}
.custom-select::-ms-expand {
    display: none !important;
}

/* Fade in animation for expanded waveform popup */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Common Input Styles */
.input-base {
    width: 100%;
    background-color: var(--bg-input);
    border: 1px solid var(--border-default);
    border-radius: 10px;
    padding: 12px 14px;
    color: var(--text-primary);
    font-size: 13px;
    outline: none;
}

.input-base:focus {
    border-color: var(--color-primary);
}

.input-small {
    padding: 8px 10px;
    border-radius: 6px;
}

/* Button Styles */
.btn {
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all 0.15s;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #fff;
    padding: 10px 16px;
}

.btn-primary:hover {
    opacity: 0.9;
}

.btn-secondary {
    background-color: var(--bg-elevated);
    border: 1px solid var(--border-default);
    color: var(--text-primary);
    padding: 10px 16px;
}

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

.btn-icon {
    background: none;
    border: 1px solid var(--border-default);
    border-radius: 4px;
    padding: 4px 8px;
    color: var(--text-muted);
    font-size: 10px;
}

.btn-icon:hover {
    border-color: var(--border-hover);
}

.btn-danger {
    border-color: var(--color-error);
    color: var(--color-error);
}

.btn-success {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-info {
    border-color: #3B82F6;
    color: #3B82F6;
}

/* Tag/Chip Styles */
.tag {
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 500;
}

.tag-primary { background-color: var(--color-primary-dark); color: var(--color-primary); }
.tag-info { background-color: #3B82F620; color: #3B82F6; }
.tag-warning { background-color: #F59E0B20; color: #F59E0B; }
.tag-purple { background-color: #8B5CF620; color: #8B5CF6; }
.tag-error { background-color: #EF444420; color: #EF4444; }
.tag-queue { background-color: #6366F120; color: #6366F1; }

/* Text Styles */
.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-dim { color: var(--text-dim); }
.text-success { color: var(--color-primary); }
.text-error { color: var(--color-error); }

.text-xs { font-size: 10px; }
.text-sm { font-size: 11px; }
.text-base { font-size: 12px; }
.text-md { font-size: 13px; }
.text-lg { font-size: 14px; }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }

/* Truncate text */
.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Flex utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 6px; }
.gap-3 { gap: 8px; }
.gap-4 { gap: 12px; }

/* Card base */
.card-base {
    background-color: var(--bg-card);
    border-radius: 12px;
    padding: 16px 18px;
}

/* Activity item */
.activity-item {
    background-color: var(--bg-input);
    border-radius: 8px;
    padding: 10px;
    border: 1px solid var(--border-default);
    transition: all 0.15s;
}

.activity-item:hover {
    border-color: var(--color-primary);
}

.activity-item.active {
    border-color: var(--color-primary);
}

.activity-item.error {
    border-color: var(--color-error);
}

/* Album cover / play button */
.album-cover {
    width: 72px;
    height: 72px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.15s;
}

.album-cover.playing { background-color: var(--color-primary); }
.album-cover.generating { background-color: var(--color-warning); }
.album-cover.queued { background-color: var(--color-queue); }
.album-cover.failed { background-color: var(--color-error); }
.album-cover.default { background-color: var(--border-default); }

.album-cover-overlay {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 8px;
    opacity: 0;
    transition: opacity 0.15s;
}

.album-cover:hover .album-cover-overlay {
    opacity: 1;
}

/* Song thumbnail hover (Songs panel) */
.song-thumb-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 6px;
    opacity: 0;
    transition: opacity 0.15s;
}

.song-thumb-hover:hover .song-thumb-overlay {
    opacity: 1;
}

/* Section pill drag and drop */
.section-pill {
    user-select: none;
    -webkit-user-select: none;
}

.section-pill:active {
    cursor: grabbing;
}

.section-pill.dragging {
    opacity: 0.4 !important;
    transform: scale(0.95) !important;
}

/* ====== Guard Well Farm Branding ====== */
.gwf-footer {
    text-align: center;
    padding: 16px 24px;
    color: #888;
    font-size: 12px;
    border-top: 1px solid #2a2a2a;
    background: #0a0a0a;
    letter-spacing: 0.5px;
}

.gwf-logo-text {
    font-family: 'Kung Fu Hustle', 'Bebas Neue', Impact, sans-serif;
    color: #D4AF37;
    font-size: 22px;
    letter-spacing: 2px;
}

.gwf-subtitle {
    font-size: 11px;
    color: #C8A951;
    letter-spacing: 1px;
}

.gwf-accent {
    color: #8B0000;
}


/* Mobile responsive: make generate button always visible */
@media (max-width: 768px) {
    .generate-btn {
        position: fixed !important;
        bottom: 80px !important;
        left: 16px !important;
        right: 16px !important;
        width: calc(100% - 32px) !important;
        z-index: 99 !important;
        box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.5) !important;
    }
}