/* =============================================
   MOBILE NAVIGATION - TradeSourceWorld
   ============================================= */

/* Hide mobile header on desktop, show on mobile */
.mobile-header {
    display: none;
}

.desktop-header {
    display: block;
}

/* =============================================
   MOBILE HEADER BAR
   ============================================= */
@media (max-width: 900px) {
    .mobile-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 12px 16px;
        background: var(--bg-white);
        border-bottom: 1px solid var(--border-color);
        position: sticky;
        top: 0;
        z-index: 1000;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    }
    
    .desktop-header {
        display: none;
    }
    
    .top-bar {
        display: none !important;
    }
}

/* Burger Menu Button */
.burger-menu {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    cursor: pointer;
    padding: 10px;
    gap: 5px;
    transition: all 0.3s ease;
}

.burger-menu:hover {
    background: var(--color-primary-dim);
    border-color: var(--color-primary);
}

.burger-line {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--color-navy);
    border-radius: 2px;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Burger Animation - Active State */
.burger-menu.active .burger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.burger-menu.active .burger-line:nth-child(2) {
    opacity: 0;
    transform: translateX(-10px);
}

.burger-menu.active .burger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Logo */
.mobile-logo-link {
    display: flex;
    align-items: center;
    flex: 1;
    justify-content: center;
    padding: 0 15px;
}

.mobile-logo {
    height: 40px;
    width: auto;
    max-width: 180px;
    object-fit: contain;
}

/* Mobile Header Actions */
.mobile-header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.mobile-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--color-navy);
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.mobile-action-btn:hover {
    background: var(--color-primary-dim);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.mobile-join-btn {
    width: auto;
    padding: 0 16px;
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.mobile-join-btn:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: #fff;
}

/* =============================================
   MOBILE NAV OVERLAY
   ============================================= */
.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(14, 42, 77, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 9998;
}

.mobile-nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* =============================================
   MOBILE NAV DRAWER
   ============================================= */
.mobile-nav {
    position: fixed;
    top: 0;
    left: -100%;
    width: 85%;
    max-width: 320px;
    height: 100vh;
    background: var(--bg-white);
    box-shadow: 4px 0 30px rgba(0, 0, 0, 0.2);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    transition: left 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
    overflow-x: hidden;
}

.mobile-nav.active {
    left: 0;
}

/* Mobile Nav Header */
.mobile-nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
    border-bottom: 3px solid var(--color-primary);
}

.mobile-nav-logo {
    height: 36px;
    width: auto;
    filter: brightness(0) invert(1);
}

.mobile-nav-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.15);
    border: none;
    border-radius: 8px;
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.mobile-nav-close:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: rotate(90deg);
}

/* Mobile Nav Search */
.mobile-nav-search {
    display: flex;
    padding: 16px 20px;
    background: var(--bg-light);
    gap: 8px;
}

.mobile-search-input {
    flex: 1;
    padding: 12px 16px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    color: var(--color-text-main);
    transition: all 0.3s ease;
}

.mobile-search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-dim);
}

.mobile-search-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--color-primary);
    border: none;
    border-radius: 8px;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.mobile-search-btn:hover {
    background: var(--color-primary-dark);
}

/* Mobile Nav Links */
.mobile-nav-links {
    padding: 12px 0;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 20px;
    color: var(--color-text-main);
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.25s ease;
    border-left: 3px solid transparent;
}

.mobile-nav-link i {
    width: 20px;
    text-align: center;
    font-size: 16px;
    color: var(--color-primary);
}

.mobile-nav-link:hover,
.mobile-nav-link:active {
    background: var(--color-primary-dim);
    border-left-color: var(--color-primary);
    color: var(--color-primary);
}

.mobile-nav-link.highlight {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: #fff;
    margin: 10px 20px;
    border-radius: 10px;
    border-left: none;
    justify-content: center;
    font-weight: 600;
}

.mobile-nav-link.highlight i {
    color: #fff;
}

.mobile-nav-link.highlight:hover {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    transform: scale(1.02);
}

/* Mobile Nav Divider */
.mobile-nav-divider {
    height: 1px;
    background: var(--border-color);
    margin: 8px 20px;
}

/* Mobile Nav Footer */
.mobile-nav-footer {
    margin-top: auto;
    padding: 20px;
    background: var(--bg-light);
    border-top: 1px solid var(--border-color);
}

.mobile-nav-help {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 14px;
    background: var(--bg-white);
    border: 2px solid var(--color-primary);
    border-radius: 10px;
    color: var(--color-primary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.mobile-nav-help:hover {
    background: var(--color-primary);
    color: #fff;
}

/* =============================================
   RESPONSIVE ADJUSTMENTS
   ============================================= */
@media (max-width: 480px) {
    .mobile-header {
        padding: 10px 12px;
    }
    
    .burger-menu {
        width: 40px;
        height: 40px;
        padding: 8px;
    }
    
    .burger-line {
        width: 18px;
    }
    
    .mobile-logo {
        height: 35px;
        max-width: 150px;
    }
    
    .mobile-action-btn {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }
    
    .mobile-join-btn {
        padding: 0 12px;
        font-size: 11px;
    }
    
    .mobile-nav {
        width: 90%;
        max-width: 300px;
    }
    
    .mobile-nav-link {
        padding: 12px 16px;
        font-size: 14px;
    }
    
    .mobile-search-input {
        padding: 10px 14px;
        font-size: 13px;
    }
    
    .mobile-search-btn {
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 360px) {
    .mobile-header {
        padding: 8px 10px;
    }
    
    .mobile-logo {
        height: 32px;
        max-width: 130px;
    }
    
    .mobile-action-btn {
        width: 34px;
        height: 34px;
    }
    
    .mobile-join-btn {
        padding: 0 10px;
        font-size: 10px;
    }
    
    .burger-menu {
        width: 36px;
        height: 36px;
    }
}