/* Mobile-first responsive design for EDI System */

/* Navigation fixes */
.navbar-toggler {
    border: 1px solid rgba(255,255,255,0.3);
    padding: 4px 8px;
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 0.2rem rgba(255,255,255,0.25);
}

/* Dropdown menu improvements */
.dropdown-menu {
    border: none;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    border-radius: 8px;
    min-width: 200px;
}

.dropdown-item {
    padding: 12px 20px;
    transition: all 0.3s ease;
    border-bottom: 1px solid #f8f9fa;
}

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

.dropdown-item:hover {
    background-color: #f8f9fa;
    color: #495057;
    transform: translateX(5px);
}

/* Small devices (landscape phones, 576px and up) */
@media (max-width: 575.98px) {
    .navbar-custom .navbar-nav .nav-link {
        padding: 12px 15px !important;
        font-size: 16px;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    
    .dropdown-menu {
        position: static !important;
        float: none !important;
        width: 100% !important;
        margin-top: 0 !important;
        background-color: rgba(255,255,255,0.95) !important;
        border: none !important;
        box-shadow: inset 0 1px 3px rgba(0,0,0,0.1) !important;
        border-radius: 0 !important;
    }
    
    .dropdown-item {
        padding: 15px 30px !important;
        font-size: 15px;
        color: #495057 !important;
    }
    
    .upload-card {
        margin: 5px !important;
    }
    
    .dropzone .dz-message {
        font-size: 14px !important;
        margin-top: 20px !important;
    }
    
    .btn-download {
        padding: 12px 25px !important;
        font-size: 14px !important;
    }
    
    .card-header-custom h3 {
        font-size: 1.2rem !important;
    }
    
    .container {
        padding-left: 10px !important;
        padding-right: 10px !important;
    }
}

/* Medium devices (tablets, 768px and up) */
@media (max-width: 767.98px) {
    .navbar-custom .navbar-nav .nav-link {
        padding: 12px 15px !important;
        font-size: 16px;
    }
    
    .dropdown-menu {
        position: static !important;
        float: none !important;
        width: 100% !important;
        margin-top: 0 !important;
        background-color: rgba(255,255,255,0.95) !important;
        border: none !important;
        box-shadow: inset 0 1px 3px rgba(0,0,0,0.1) !important;
        border-radius: 0 !important;
    }
    
    .dropdown-item {
        padding: 12px 25px !important;
        color: #495057 !important;
    }
    
    .upload-card {
        margin: 10px !important;
    }
    
    .dropzone .dz-message {
        font-size: 16px !important;
        margin-top: 30px !important;
    }
    
    .btn-download {
        padding: 10px 25px !important;
        font-size: 14px !important;
    }
    
    .navbar-collapse {
        background-color: rgba(0,0,0,0.05);
        border-radius: 5px;
        margin-top: 10px;
        padding: 10px;
    }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) {
    .container {
        max-width: 960px;
    }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
    .container {
        max-width: 1140px;
    }
}

/* Touch devices - increase touch targets */
@media (pointer: coarse) {
    .btn {
        min-height: 44px;
        min-width: 44px;
    }
    
    .nav-link {
        min-height: 44px;
    }
    
    .dropdown-item {
        min-height: 44px;
        padding: 12px 20px;
    }
}

/* Print styles */
@media print {
    .navbar-custom,
    .btn,
    .dropzone {
        display: none !important;
    }
    
    .card {
        border: 1px solid #000 !important;
        box-shadow: none !important;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .upload-card {
        background-color: #2d3748;
        color: #e2e8f0;
    }
    
    .dropzone {
        background: #4a5568 !important;
        color: #e2e8f0 !important;
    }
    
    .status-message {
        color: #e2e8f0 !important;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    .btn-download {
        border: 2px solid #000;
    }
    
    .navbar-custom {
        border-bottom: 2px solid #000;
    }
    
    .card {
        border: 2px solid #000;
    }
}