/**
 * Naybr Responsive CSS
 * Mobile breakpoints + Mobile Navigation
 */

/* ========================================
   Mobile Navigation Components (hidden on desktop)
   ======================================== */
.naybr-hamburger,
.naybr-mobile-controls,
.naybr-mobile-backdrop,
.naybr-mobile-drawer {
    display: none;
}

/* ========================================
   Tablet (max-width: 768px)
   ======================================== */
@media (max-width: 768px) {
    .naybr-header-inner {
        height: 56px;
        padding: 0 var(--naybr-space-sm);
    }
    
    .naybr-logo {
        font-size: 1.25rem;
    }
    
    .naybr-nav-list {
        gap: var(--naybr-space-sm);
    }
    
    .naybr-nav-list a {
        padding: var(--naybr-space-xs) var(--naybr-space-sm);
        font-size: 0.875rem;
    }
    
    /* Hide nav text labels on tablet, keep icons */
    .naybr-nav-list a span:not(.nav-badge) {
        display: none;
    }
    
    /* Ensure header nav buttons are tappable */
    .naybr-nav .btn {
        min-height: 44px;
        min-width: 44px;
        padding: var(--naybr-space-sm) var(--naybr-space-md);
    }
    
    .naybr-hero-title {
        font-size: 2.25rem;
    }
    
    .naybr-hero-tagline {
        font-size: 1.25rem;
    }
    
    .naybr-hero-features {
        grid-template-columns: 1fr;
        gap: var(--naybr-space-md);
    }
    
    .naybr-footer-inner {
        flex-direction: column;
        text-align: center;
    }
    
    .naybr-footer-meta {
        text-align: center;
    }
    
    .naybr-dashboard-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ========================================
   Mobile Navigation (max-width: 640px)
   ======================================== */
@media (max-width: 640px) {
    /* Hide desktop nav, show hamburger */
    .naybr-nav-desktop {
        display: none !important;
    }
    
    .naybr-hamburger,
    .naybr-mobile-controls {
        display: flex;
    }
    
    .naybr-mobile-backdrop,
    .naybr-mobile-drawer {
        display: block;
    }
    
    /* Mobile controls container */
    .naybr-mobile-controls {
        align-items: center;
        gap: var(--naybr-space-xs);
    }
    
    /* Mobile header auth buttons */
    .naybr-mobile-controls .btn {
        padding: var(--naybr-space-xs) var(--naybr-space-sm);
        font-size: 0.8125rem;
        min-height: 36px;
    }
    
    /* Hamburger Button */
    .naybr-hamburger {
        position: relative;
        width: 44px;
        height: 44px;
        padding: 0;
        background: transparent;
        border: none;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        -webkit-tap-highlight-color: transparent;
    }
    
    /* Icon toggle states with crossfade */
    .hamburger-closed,
    .hamburger-open {
        position: absolute;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: opacity 0.25s ease;
    }
    
    .hamburger-closed {
        opacity: 1;
    }
    
    .hamburger-open {
        opacity: 0;
    }
    
    .naybr-hamburger.active .hamburger-closed {
        opacity: 0;
    }
    
    .naybr-hamburger.active .hamburger-open {
        opacity: 1;
    }
    
    /* Badge on hamburger */
    .hamburger-badge {
        position: absolute;
        top: 4px;
        right: 4px;
        min-width: 18px;
        height: 18px;
        padding: 0 5px;
        font-size: 0.6875rem;
        font-weight: 600;
        background: var(--naybr-error);
        color: white;
        border-radius: var(--naybr-radius-full);
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    /* Backdrop */
    .naybr-mobile-backdrop {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
        z-index: 998;
        -webkit-backdrop-filter: blur(2px);
        backdrop-filter: blur(2px);
    }
    
    .naybr-mobile-backdrop.open {
        opacity: 1;
        visibility: visible;
    }
    
    /* Drawer */
    .naybr-mobile-drawer {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: 280px;
        max-width: 85vw;
        background: var(--naybr-white);
        transform: translateX(100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 999;
        overflow-y: auto;
        overscroll-behavior: contain;
        -webkit-overflow-scrolling: touch;
        display: flex;
        flex-direction: column;
    }
    
    .naybr-mobile-drawer.open {
        transform: translateX(0);
    }
    
    /* Drawer Header */
    .mobile-drawer-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: var(--naybr-space-md);
        border-bottom: 1px solid var(--naybr-gray-200);
        flex-shrink: 0;
    }
    
    .mobile-drawer-close {
        width: 44px;
        height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: transparent;
        border: none;
        color: var(--naybr-gray-500);
        cursor: pointer;
        border-radius: var(--naybr-radius-md);
        -webkit-tap-highlight-color: transparent;
    }
    
    .mobile-drawer-close:active {
        background: var(--naybr-gray-100);
    }
    
    /* User Section */
    .mobile-drawer-user {
        display: flex;
        align-items: center;
        gap: var(--naybr-space-md);
        padding: var(--naybr-space-lg) var(--naybr-space-md);
        background: var(--naybr-primary-lighter);
        border-bottom: 1px solid var(--naybr-gray-200);
    }
    
    .mobile-user-avatar,
    .mobile-user-avatar-placeholder {
        width: 48px;
        height: 48px;
        border-radius: 50%;
        flex-shrink: 0;
    }
    
    .mobile-user-avatar {
        object-fit: cover;
    }
    
    .mobile-user-avatar-placeholder {
        display: flex;
        align-items: center;
        justify-content: center;
        background: linear-gradient(135deg, var(--naybr-primary-light), var(--naybr-primary));
        color: white;
        font-weight: 600;
        font-size: 1.125rem;
    }
    
    .mobile-user-info {
        display: flex;
        flex-direction: column;
        min-width: 0;
    }
    
    .mobile-user-name {
        font-weight: 600;
        color: var(--naybr-gray-900);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .mobile-user-profile {
        font-size: 0.8125rem;
        color: var(--naybr-primary);
    }
    
    /* Navigation Links */
    .mobile-drawer-nav {
        list-style: none;
        margin: 0;
        padding: var(--naybr-space-sm) 0;
    }
    
    .mobile-drawer-nav li a {
        display: flex;
        align-items: center;
        gap: var(--naybr-space-md);
        padding: var(--naybr-space-md);
        color: var(--naybr-gray-700);
        text-decoration: none;
        transition: background 0.15s ease;
        min-height: 48px;
    }
    
    .mobile-drawer-nav li a:active {
        background: var(--naybr-gray-100);
    }
    
    .mobile-drawer-nav li a.active {
        background: var(--naybr-primary-light);
        color: var(--naybr-primary-dark);
    }
    
    .mobile-drawer-nav li a svg {
        flex-shrink: 0;
        color: var(--naybr-gray-500);
    }
    
    .mobile-drawer-nav li a.active svg {
        color: var(--naybr-primary);
    }
    
    .mobile-drawer-nav li a span {
        flex: 1;
    }
    
    .mobile-nav-badge {
        min-width: 20px;
        height: 20px;
        padding: 0 6px;
        font-size: 0.75rem;
        font-weight: 600;
        background: var(--naybr-error);
        color: white;
        border-radius: var(--naybr-radius-full);
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .mobile-drawer-divider {
        margin: 0;
        border: none;
        border-top: 1px solid var(--naybr-gray-200);
    }
    
    .mobile-drawer-secondary li a {
        color: var(--naybr-gray-500);
        font-size: 0.9375rem;
    }
    
    /* Footer */
    .mobile-drawer-footer {
        margin-top: auto;
        padding: var(--naybr-space-lg) var(--naybr-space-md);
        border-top: 1px solid var(--naybr-gray-200);
    }
    
    .mobile-logout {
        display: flex;
        align-items: center;
        gap: var(--naybr-space-sm);
        color: var(--naybr-gray-500);
        font-size: 0.9375rem;
    }
    
    .mobile-drawer-auth {
        display: flex;
        flex-direction: column;
        gap: var(--naybr-space-sm);
    }
    
    .mobile-drawer-auth .btn {
        width: 100%;
        justify-content: center;
    }
    
    /* Body scroll lock when drawer open */
    body.mobile-nav-open {
        overflow: hidden;
        position: fixed;
        width: 100%;
    }
}

/* ========================================
   Small Mobile (max-width: 480px)
   ======================================== */
@media (max-width: 480px) {
    /* Ensure header is above all content and clickable */
    .naybr-header {
        position: sticky;
        top: 0;
        z-index: 100;
    }
    
    .naybr-header-inner {
        padding: 0 var(--naybr-space-md);
    }
    
    .naybr-container {
        padding: 0 var(--naybr-space-md);
    }
    
    .naybr-main {
        padding: var(--naybr-space-lg) 0;
    }
    
    .naybr-hero {
        padding: var(--naybr-space-xl) 0;
    }
    
    .naybr-hero-title {
        font-size: 1.75rem;
    }
    
    .naybr-hero-tagline {
        font-size: 1.125rem;
    }
    
    .naybr-feature {
        padding: var(--naybr-space-md);
    }
    
    .naybr-feature-icon {
        width: 48px;
        height: 48px;
    }
    
    .naybr-feature-icon svg {
        width: 24px;
        height: 24px;
    }
    
    .naybr-btn-lg {
        padding: var(--naybr-space-sm) var(--naybr-space-lg);
        font-size: 1rem;
    }
    
    .naybr-dashboard h1 {
        font-size: 1.5rem;
    }
    
    .naybr-dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .naybr-dash-card {
        padding: var(--naybr-space-lg);
    }
    
    .naybr-footer-nav .naybr-footer-list {
        flex-direction: column;
        gap: var(--naybr-space-sm);
    }
    
    /* iOS safe area padding for drawer */
    .naybr-mobile-drawer {
        padding-bottom: env(safe-area-inset-bottom, 0);
    }
    
    .mobile-drawer-footer {
        padding-bottom: calc(var(--naybr-space-lg) + env(safe-area-inset-bottom, 0));
    }
}

/* ========================================
   Reduced Motion
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .naybr-mobile-drawer {
        transition: none;
    }
    
    .naybr-mobile-backdrop {
        transition: none;
    }
}

/* ========================================
   Dark Mode (future)
   ======================================== */
@media (prefers-color-scheme: dark) {
    /* Ready for dark mode implementation */
}