/* 
========================================
PHONE NAVBAR ENHANCEMENT SYSTEM
========================================
Optimized navigation for mobile phones and touch devices
*/

/* ===== MOBILE NAVIGATION ENHANCEMENTS ===== */
@media (max-width: 900px) {
    .navbar {
        position: sticky;
        top: 0;
        z-index: 1000;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        background: rgba(255, 255, 255, 0.95);
    }

    .theme-dark .navbar {
        background: rgba(45, 45, 45, 0.95);
    }

    .nav-container {
        position: relative;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding: 0.5rem 1rem;
    }

    .nav-logo {
        flex-shrink: 0;
    }

    .nav-logo-text {
        font-size: 1.3rem;
    }

    .nav-menu {
        display: none;
    }

    .nav-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        background: transparent;
        border: none;
        color: var(--text-color);
        font-size: 1.5rem;
        cursor: pointer;
        padding: 0.5rem;
        border-radius: 8px;
        transition: all 0.3s ease;
        min-width: 44px;
        min-height: 44px;
    }

    .nav-toggle:hover {
        background: rgba(212, 175, 55, 0.1);
        color: var(--primary-color);
    }

    .nav-toggle.active {
        background: rgba(212, 175, 55, 0.2);
        color: var(--primary-color);
        transform: rotate(90deg);
    }

    .mobile-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--card-bg);
        border-top: 1px solid var(--border-color);
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
        z-index: 999;
        max-height: calc(100vh - 80px);
        overflow-y: auto;
        border-radius: 0 0 15px 15px;
    }

    .mobile-menu.active {
        display: block;
        animation: slideDown 0.3s ease-out;
    }

    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .mobile-menu .nav-menu {
        display: flex;
        flex-direction: column;
        gap: 0;
        padding: 1rem;
        list-style: none;
        margin: 0;
    }

    .mobile-menu .nav-link {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        padding: 1rem;
        border-radius: 10px;
        margin-bottom: 0.5rem;
        width: 100%;
        text-decoration: none;
        color: var(--text-color);
        font-weight: 500;
        font-size: 1rem;
        transition: all 0.3s ease;
        background: transparent;
        border: 1px solid transparent;
        min-height: 50px;
        position: relative;
    }

    .mobile-menu .nav-link:hover,
    .mobile-menu .nav-link:focus {
        background: rgba(212, 175, 55, 0.1);
        border-color: rgba(212, 175, 55, 0.2);
        color: var(--primary-color);
        transform: translateX(-3px);
    }

    .mobile-menu .nav-link.active {
        background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
        color: white;
        box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
    }

    .mobile-menu .nav-link i {
        font-size: 1.2rem;
        width: 24px;
        text-align: center;
        flex-shrink: 0;
    }

    .mobile-menu .nav-link .cart-count {
        margin-left: auto;
        background: var(--danger-color);
        color: white;
        border-radius: 12px;
        min-width: 24px;
        height: 24px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 0.75rem;
        font-weight: 600;
        animation: pulse 2s infinite;
    }

    @keyframes pulse {
        0%, 100% {
            transform: scale(1);
        }
        50% {
            transform: scale(1.1);
        }
    }

    .user-info {
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

    .user-info .user-name {
        display: none;
    }

    .user-info .logout-btn {
        padding: 0.5rem 0.75rem;
        font-size: 0.9rem;
        min-height: 40px;
    }

    .user-info .logout-btn span {
        display: none;
    }

    .main-content {
        padding-top: 80px;
    }
}

/* ===== COMPACT PHONE MODE (480px and below) ===== */
@media (max-width: 480px) {
    .nav-container {
        padding: 0.4rem 0.75rem;
    }

    .nav-logo-text {
        font-size: 1.1rem;
    }

    .nav-toggle {
        font-size: 1.3rem;
        padding: 0.4rem;
        min-width: 40px;
        min-height: 40px;
    }

    .mobile-menu .nav-menu {
        padding: 0.75rem;
    }

    .mobile-menu .nav-link {
        padding: 0.75rem;
        font-size: 0.95rem;
        min-height: 46px;
    }

    .mobile-menu .nav-link i {
        font-size: 1.1rem;
        width: 20px;
    }

    .user-info .user-avatar {
        width: 32px;
        height: 32px;
        font-size: 0.9rem;
    }

    .user-info .logout-btn {
        padding: 0.4rem 0.6rem;
        font-size: 0.85rem;
        min-height: 36px;
    }

    .main-content {
        padding-top: 70px;
    }
}

/* ===== TINY PHONE MODE (360px and below) ===== */
@media (max-width: 360px) {
    .nav-container {
        padding: 0.3rem 0.5rem;
    }

    .nav-logo-text {
        font-size: 1rem;
    }

    .nav-toggle {
        font-size: 1.2rem;
        padding: 0.3rem;
        min-width: 36px;
        min-height: 36px;
    }

    .mobile-menu .nav-menu {
        padding: 0.5rem;
    }

    .mobile-menu .nav-link {
        padding: 0.6rem;
        font-size: 0.9rem;
        min-height: 42px;
        gap: 0.5rem;
    }

    .mobile-menu .nav-link i {
        font-size: 1rem;
        width: 18px;
    }

    .user-info .user-avatar {
        width: 28px;
        height: 28px;
        font-size: 0.8rem;
    }

    .user-info .logout-btn {
        padding: 0.3rem 0.5rem;
        font-size: 0.8rem;
        min-height: 32px;
    }

    .main-content {
        padding-top: 65px;
    }
}

/* ===== ACCESSIBILITY IMPROVEMENTS ===== */
@media (max-width: 900px) {
    .nav-toggle:focus {
        outline: 2px solid var(--primary-color);
        outline-offset: 2px;
    }

    .mobile-menu .nav-link:focus {
        outline: 2px solid var(--primary-color);
        outline-offset: -2px;
    }

    /* High contrast mode support */
    @media (prefers-contrast: high) {
        .mobile-menu .nav-link {
            border: 2px solid var(--text-color);
        }

        .mobile-menu .nav-link:hover,
        .mobile-menu .nav-link:focus {
            background: var(--text-color);
            color: var(--bg-color);
        }
    }

    /* Reduced motion support */
    @media (prefers-reduced-motion: reduce) {
        .nav-toggle.active {
            transform: none;
        }

        .mobile-menu.active {
            animation: none;
        }

        .mobile-menu .nav-link {
            transition: none;
        }

        .mobile-menu .nav-link:hover {
            transform: none;
        }

        .mobile-menu .nav-link .cart-count {
            animation: none;
        }
    }
}

/* ===== DARK THEME ADJUSTMENTS ===== */
.theme-dark .mobile-menu {
    background: var(--card-bg);
    border-color: var(--border-color);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
}

.theme-dark .mobile-menu .nav-link {
    color: var(--text-color);
}

.theme-dark .mobile-menu .nav-link:hover,
.theme-dark .mobile-menu .nav-link:focus {
    background: rgba(228, 164, 196, 0.1);
    border-color: rgba(228, 164, 196, 0.2);
    color: var(--primary-color);
}

.theme-dark .mobile-menu .nav-link.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

/* ===== LANDSCAPE ORIENTATION ADJUSTMENTS ===== */
@media (max-width: 900px) and (orientation: landscape) {
    .mobile-menu {
        max-height: calc(100vh - 60px);
    }

    .mobile-menu .nav-menu {
        padding: 0.5rem;
    }

    .mobile-menu .nav-link {
        padding: 0.6rem;
        margin-bottom: 0.3rem;
        min-height: 44px;
    }

    .main-content {
        padding-top: 60px;
    }
}

/* ===== TOUCH DEVICE OPTIMIZATIONS ===== */
@media (pointer: coarse) {
    .nav-toggle {
        min-width: 44px;
        min-height: 44px;
    }

    .mobile-menu .nav-link {
        min-height: 48px;
        -webkit-tap-highlight-color: rgba(212, 175, 55, 0.2);
    }

    .user-info .logout-btn {
        min-height: 44px;
    }
}

/* ===== LOADING STATES ===== */
.nav-link.loading {
    opacity: 0.7;
    pointer-events: none;
}

.nav-link.loading i {
    animation: spin 1s linear infinite;
}

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

/* ===== SAFE AREA SUPPORT FOR PHONES WITH NOTCHES ===== */
@supports (padding: env(safe-area-inset-top)) {
    @media (max-width: 900px) {
        .navbar {
            padding-top: env(safe-area-inset-top);
        }

        .mobile-menu {
            max-height: calc(100vh - env(safe-area-inset-top) - 80px);
        }
    }
}