/* ========== COMPONENTS CSS - SpotiTube ========== */
/* Archivo: public/css/components.css */
/* Descripción: Estilos de componentes reutilizables */

/* ========== BRAND TITLE (SpotiTube con degradados) ========== */
.brand-title {
    font-weight: 700;
    letter-spacing: -0.5px;
    display: inline-block;
}

.brand-title .spoti {
    background: linear-gradient(90deg, #4ade80, #1db954);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-title .tube {
    background: linear-gradient(90deg, #1db954, #ff0000);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Variantes de tamaño */
h1.brand-title {
    font-size: 2.5rem;
}

h2.brand-title {
    font-size: 2rem;
}

.welcome-modal-title.brand-title {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

/* ========== BOTONES ========== */
.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--border-radius-pill);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn-primary {
    background: var(--spotify-green);
    color: var(--spotify-black);
}

.btn-primary:hover {
    background: var(--spotify-green-hover);
    transform: scale(1.05);
    box-shadow: var(--shadow-glow-green);
}

.btn-secondary {
    background: transparent;
    color: var(--spotify-white);
    border: 1px solid var(--spotify-white);
}

.btn-secondary:hover {
    background: var(--spotify-white);
    color: var(--spotify-black);
    transform: translateY(-2px);
}

.btn-youtube {
    background: var(--youtube-red);
    color: var(--spotify-white);
}

.btn-youtube:hover {
    background: var(--youtube-red-hover);
    transform: scale(1.05);
    box-shadow: var(--shadow-glow-red);
}

.btn-danger {
    background: var(--error-color);
    color: var(--spotify-white);
}

.btn-danger:hover {
    background: #c91b2c;
    transform: scale(1.05);
}

.btn-small {
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-sm);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: var(--font-size-lg);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.btn-loading {
    position: relative;
    color: transparent !important;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin-top: -10px;
    margin-left: -10px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ========== CARDS ========== */
.card {
    background: rgba(33, 33, 33, 0.9);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.card-elevated {
    background: var(--bg-elevated);
    box-shadow: var(--shadow-heavy);
}

/* ========== FORMULARIOS ========== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--spotify-gray);
    border-radius: var(--border-radius-small);
    background: var(--spotify-dark-gray);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    transition: all var(--transition-normal);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--spotify-green);
    box-shadow: 0 0 0 3px rgba(29, 185, 84, 0.2);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-muted);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-select {
    cursor: pointer;
    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='%23b3b3b3' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

/* ========== CHARACTER COUNTER ========== */
.character-counter {
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-top: var(--spacing-sm);
}

.character-counter.warning {
    color: var(--warning-color);
}

.character-counter.error {
    color: var(--error-color);
}

/* ========== LOADING SPINNER ========== */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--spotify-gray);
    border-top-color: var(--spotify-green);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

.loading-spinner-small {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

/* ========== PROGRESS BAR MEJORADO ========== */
.progress-container {
    width: 100%;
    margin: var(--spacing-xl) 0;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--spotify-gray);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--spotify-green) 0%, var(--spotify-green-hover) 100%);
    width: 0%;
    transition: width 0.3s ease;
    border-radius: 4px;
}

/* Modo pulsante para cuando no hay progreso medible */
.progress-fill.pulsing {
    width: 100% !important;
    animation: progressPulse 1.5s ease-in-out infinite;
    background: linear-gradient(
        90deg, 
        var(--spotify-gray) 0%, 
        var(--spotify-green) 25%, 
        var(--spotify-green-hover) 50%, 
        var(--spotify-green) 75%, 
        var(--spotify-gray) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s ease-in-out infinite;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.progress-text {
    text-align: center;
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    font-weight: 500;
}

/* Subtexto de estadísticas */
.progress-stats {
    text-align: center;
    margin-top: 4px;
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.progress-stats .stat-found {
    color: var(--spotify-green);
}

.progress-stats .stat-not-found {
    color: #f59e0b;
}

/* Porcentaje visible */
.progress-percent {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 10px;
    font-weight: bold;
    color: var(--text-primary);
    text-shadow: 0 0 3px rgba(0,0,0,0.5);
}

/* ========== MESSAGES ========== */
.message {
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius-small);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.message-success {
    background: rgba(29, 185, 84, 0.1);
    border: 1px solid var(--success-color);
    color: var(--success-color);
}

.message-error {
    background: rgba(226, 33, 52, 0.1);
    border: 1px solid var(--error-color);
    color: var(--error-color);
}

.message-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid var(--warning-color);
    color: var(--warning-color);
}

.message-info {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid var(--info-color);
    color: var(--info-color);
}

/* ========== BADGES/CHIPS ========== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius-pill);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.badge-green {
    background: rgba(29, 185, 84, 0.2);
    color: var(--spotify-green);
    border: 1px solid var(--spotify-green);
}

.badge-red {
    background: rgba(255, 0, 0, 0.2);
    color: var(--youtube-red);
    border: 1px solid var(--youtube-red);
}

.artist-chip {
    background: rgba(29, 185, 84, 0.2);
    border: 1px solid var(--spotify-green);
    border-radius: 20px;
    padding: 0.25rem 0.75rem;
    font-size: var(--font-size-sm);
    color: var(--text-primary);
}

/* ========== AVATARS ========== */
.avatar {
    width: var(--avatar-size);
    height: var(--avatar-size);
    border-radius: 50%;
    object-fit: cover;
}

.avatar-small {
    width: 32px;
    height: 32px;
}

.avatar-large {
    width: 80px;
    height: 80px;
}

/* ========== USER INFO ========== */
.user-info {
    background: rgba(29, 185, 84, 0.1);
    border: 1px solid var(--spotify-green);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.user-avatar {
    width: var(--avatar-size);
    height: var(--avatar-size);
    border-radius: 50%;
    margin-right: var(--spacing-md);
}

.user-details h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

.user-details p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: 0;
}

/* ========== LANGUAGE SELECTOR ========== */
.language-selector {
    background: rgba(29, 185, 84, 0.1);
    border: 1px solid var(--spotify-green);
    border-radius: 20px;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-primary);
    cursor: pointer;
    font-size: var(--font-size-sm);
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

.language-selector:hover {
    background: rgba(29, 185, 84, 0.2);
    transform: translateY(-2px);
}

.language-selector option {
    background: var(--spotify-dark-gray);
    color: var(--text-primary);
}

/* ========== TOOLTIP ========== */
.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-elevated);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    border-radius: var(--border-radius-small);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: var(--z-tooltip);
}

.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
}

/* ========== DIVIDER ========== */
.divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin: var(--spacing-lg) 0;
}

.divider-vertical {
    width: 1px;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    margin: 0 var(--spacing-md);
}

/* ========== CATEGORÍAS COLAPSABLES ========== */
.category-header.collapsible {
    padding: 0.5rem 0.75rem;
    margin: 0 -0.75rem 1rem -0.75rem;
    border-radius: var(--border-radius-small);
    transition: background-color 0.2s ease;
}

.category-header.collapsible:hover {
    background: rgba(255, 255, 255, 0.05);
}

.category-header .collapse-icon {
    font-size: 0.7em;
    opacity: 0.7;
    min-width: 1em;
    text-align: center;
}

.category-header.collapsed .collapse-icon {
    opacity: 0.5;
}

.category-content {
    transition: all 0.3s ease;
}

/* Liked Songs especial */
.liked-songs-item {
    background: linear-gradient(135deg, rgba(75, 0, 130, 0.2), rgba(180, 0, 180, 0.1));
    border-radius: var(--border-radius-small);
}

.liked-songs-item:hover {
    background: linear-gradient(135deg, rgba(75, 0, 130, 0.3), rgba(180, 0, 180, 0.2));
}

/* ========== MODAL DE BIENVENIDA ========== */
.welcome-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.welcome-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.welcome-modal {
    background: linear-gradient(145deg, #1e1e1e, #282828);
    border-radius: 16px;
    padding: 2rem;
    max-width: 420px;
    width: 90%;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(29, 185, 84, 0.3);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.welcome-modal-overlay.active .welcome-modal {
    transform: scale(1);
}

.welcome-modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 28px;
    cursor: pointer;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
    line-height: 1;
}

.welcome-modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.welcome-modal-title {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.welcome-modal-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.welcome-feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.welcome-icon {
    font-size: 1.3rem;
    min-width: 2rem;
    text-align: center;
}

.welcome-modal-btn {
    width: 100%;
    padding: 0.9rem;
    font-size: 1.1rem;
}