/**
 * CLUB V2.2 - Componentes Comunes
 * Header, Footer, Logo, Navegación
 */

/* ==========================================
   LOGO
   ========================================== */
.logo {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.logo-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-sm);
    display: block;
}

.logo-text {
    color: var(--color-text-white);
    font-size: var(--font-size-2xl);
    font-weight: bold;
    display: block;
}

.logo-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-base);
    display: block;
    margin-top: var(--spacing-xs);
}

/* ==========================================
   HEADER
   ========================================== */
.header {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--color-text-white);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

.header-left h1 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xs);
}

.header-left p {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.puntos-badge {
    background: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-pill);
    font-weight: bold;
    font-size: var(--font-size-md);
}

/* ==========================================
   NAVEGACIÓN INFERIOR
   ========================================== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-bg-card);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    padding: var(--spacing-sm) 0;
    z-index: var(--z-fixed);
}

.nav-container {
    display: flex;
    justify-content: space-around;
    align-items: center;
    max-width: 600px;
    margin: 0 auto;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    transition: color var(--transition-base);
    cursor: pointer;
}

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

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

.nav-icon {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xs);
}

/* ==========================================
   TABS
   ========================================== */
.tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.tab {
    flex: 1;
    padding: 12px;
    background: var(--color-bg-light);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;
    text-align: center;
    font-weight: bold;
    transition: all var(--transition-base);
    color: var(--color-text-primary);
}

.tab:hover {
    background: #E5E7EB;
}

.tab.active {
    background: var(--gradient-primary);
    color: var(--color-text-white);
}

/* ==========================================
   AVATARES
   ========================================== */
.avatar {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-round);
    object-fit: cover;
    border: 4px solid var(--color-bg-card);
    box-shadow: var(--shadow-lg);
}

.avatar-sm {
    width: 40px;
    height: 40px;
}

.avatar-lg {
    width: 120px;
    height: 120px;
}

.avatar-placeholder {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-round);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-white);
    font-size: var(--font-size-2xl);
    font-weight: bold;
    border: 4px solid var(--color-bg-card);
    box-shadow: var(--shadow-lg);
}

/* ==========================================
   LISTAS
   ========================================== */
.list-group {
    list-style: none;
    padding: 0;
    margin: 0;
}

.list-item {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    transition: background var(--transition-base);
}

.list-item:last-child {
    border-bottom: none;
}

.list-item:hover {
    background: var(--color-bg-light);
}

.list-item-clickable {
    cursor: pointer;
}

/* ==========================================
   GRID
   ========================================== */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 768px) {
    .grid-3,
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   MODALES
   ========================================== */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: var(--z-modal-backdrop);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.modal {
    background: var(--color-bg-card);
    border-radius: var(--radius-xxl);
    padding: var(--spacing-xl);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-2xl);
    z-index: var(--z-modal);
}

.modal-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin: 0;
}

.modal-close {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    cursor: pointer;
    color: var(--color-text-secondary);
    padding: 0;
    line-height: 1;
}

.modal-close:hover {
    color: var(--color-text-primary);
}

.modal-body {
    padding: var(--spacing-lg) 0;
}

.modal-footer {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

/* ==========================================
   LOADING
   ========================================== */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: var(--radius-round);
    animation: spin 0.8s linear infinite;
}

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

.spinner-lg {
    width: 60px;
    height: 60px;
    border-width: 6px;
}

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

.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xxl);
    gap: var(--spacing-lg);
}

.loading-text {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

/* ==========================================
   DIVIDERS
   ========================================== */
.divider {
    text-align: center;
    margin: var(--spacing-xl) 0;
    color: var(--color-text-muted);
    position: relative;
}

.divider::before,
.divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 40%;
    height: 1px;
    background: var(--color-border);
}

.divider::before {
    left: 0;
}

.divider::after {
    right: 0;
}

/* ==========================================
   EMPTY STATE
   ========================================== */
.empty-state {
    text-align: center;
    padding: var(--spacing-xxl);
    color: var(--color-text-secondary);
}

.empty-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

.empty-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.empty-description {
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-lg);
}