/* ============================================
   📐 Layout - App Structure & Views
   ============================================ */

/* Loader */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-bg-primary);
    z-index: 9999;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

/* App Container */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--color-bg-primary);
}

/* App Header */
.app-header {
    background-color: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    background-color: rgba(255, 255, 255, 0.95);
}

.dark-theme .app-header {
    background-color: rgba(31, 41, 55, 0.95);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    max-width: 1200px;
    margin: 0 auto;
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding-right: var(--space-xs);
}

.app-branding {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.app-icon {
    font-size: 1.75rem;
}

.app-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

/* Main Content */
.app-main {
    flex: 1;
    padding: var(--space-lg);
    padding-bottom: calc(var(--space-lg) + 60px); /* Space for footer */
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}

/* Views */
.view {
    display: none;
    animation: fadeIn var(--transition-base);
}

.view.active {
    display: block;
}

/* Sections */
.clubs-section {
    margin-bottom: var(--space-2xl);
}

.find-club-section {
    margin-top: var(--space-2xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
}

.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-lg);
}

/* Clubs Grid */
.clubs-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--space-2xl) var(--space-lg);
}

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

.empty-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

.empty-description {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    max-width: 400px;
    margin: 0 auto;
}

/* App Footer */
.app-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50px;
    background-color: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    z-index: 90;
    backdrop-filter: blur(12px);
    background-color: rgba(255, 255, 255, 0.95);
}

.dark-theme .app-footer {
    background-color: rgba(31, 41, 55, 0.95);
}

.footer-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all var(--transition-base);
    position: relative;
}

.footer-link:hover {
    background-color: var(--color-bg-hover);
    transform: translateY(-2px);
}

.footer-link:active {
    transform: translateY(0);
}

.footer-emoji {
    font-size: 1.5rem;
    line-height: 1;
}

/* Tooltip on hover */
.footer-link::after {
    content: attr(title);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 8px;
    padding: 6px 12px;
    background-color: var(--color-text-primary);
    color: var(--color-bg-primary);
    font-size: 0.75rem;
    white-space: nowrap;
    border-radius: var(--radius-sm);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
}

.footer-link:hover::after {
    opacity: 1;
}

/* Responsive Layout */
@media (max-width: 768px) {
    .clubs-grid {
        grid-template-columns: 1fr;
    }
    
    .app-title {
        font-size: 1.125rem;
    }
    
    .section-title {
        font-size: 1.25rem;
    }
    
    .app-main {
        padding: var(--space-md);
        padding-bottom: calc(var(--space-md) + 60px);
    }
    
    .app-footer {
        gap: var(--space-lg);
    }
}

@media (max-width: 480px) {
    .header-content {
        padding: var(--space-sm) var(--space-md);
    }
    
    .app-icon {
        font-size: 1.5rem;
    }
    
    .app-title {
        font-size: 1rem;
    }
    
    .app-main {
        padding-bottom: calc(var(--space-md) + 32px);
    }
    
    .app-footer {
        height: 28px;
        gap: var(--space-sm);
    }
    
    .footer-link {
        width: 28px;
        height: 28px;
    }
    
    .footer-emoji {
        font-size: 1.125rem;
    }
    
    /* Hide tooltip on small screens (touch devices) */
    .footer-link::after {
        display: none;
    }
}