/* Purdue OPT/CPT Verification System - Mobile Optimized CSS */

/* Base Styles */
:root {
    --purdue-gold: #CEB888;
    --purdue-black: #000000;
    --purdue-gray: #8D8173;
    --purdue-light-gray: #F8F9FA;
    --secondary-color: #1E4D8C;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
}

/* Mobile First Approach */
body {
    font-size: 16px;
    line-height: 1.5;
}

/* Typography for Mobile */
h1 { font-size: 2rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

@media (min-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.75rem; }
    h4 { font-size: 1.5rem; }
    h5 { font-size: 1.25rem; }
    h6 { font-size: 1.125rem; }
}

/* Form Controls Mobile Optimization */
.form-control, .form-select {
    font-size: 16px; /* Prevents iOS zoom on focus */
    padding: 12px;
}

/* Fix for date inputs on iOS */
input[type="date"] {
    min-height: 44px; /* Minimum touch target size */
}

/* Button Sizing for Touch */
.btn {
    min-height: 44px;
    padding: 10px 20px;
    font-size: 16px;
}

.btn-sm {
    min-height: 36px;
    padding: 6px 12px;
    font-size: 14px;
}

.btn-lg {
    min-height: 52px;
    padding: 14px 28px;
    font-size: 18px;
}

/* Table Responsiveness */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
}

/* Card Adjustments for Mobile */
.card {
    margin-bottom: 1rem;
}

.dashboard-card, .form-section {
    padding: 1.25rem;
    margin-bottom: 1.25rem;
}

/* Navigation for Mobile */
.navbar-nav .nav-link {
    padding: 0.5rem 1rem;
}

/* Dropdown Menu Touch Optimization */
.dropdown-menu {
    min-width: 200px;
}

.dropdown-item {
    padding: 0.75rem 1.25rem;
}

/* Modal Mobile Optimization */
.modal-dialog {
    margin: 0.5rem;
}

.modal-content {
    border-radius: 0.5rem;
}

/* Timeline Responsive */
.timeline {
    padding-left: 20px;
}

.timeline::before {
    left: 10px;
}

.timeline-item::before {
    left: -18px;
    width: 10px;
    height: 10px;
}

/* Demo Controls Mobile */
.demo-controls {
    bottom: 10px;
    right: 10px;
}

.demo-controls .btn {
    padding: 8px 16px;
    font-size: 14px;
}

/* Status Badges Mobile */
.status-badge {
    padding: 4px 10px;
    font-size: 11px;
}

/* Match Indicator */
.match-indicator {
    height: 10px;
}

/* Alert Styling */
.alert {
    padding: 1rem;
    margin-bottom: 1rem;
}

/* Input Group Mobile */
.input-group {
    flex-wrap: nowrap;
}

.input-group-text {
    min-width: 44px;
    justify-content: center;
}

/* Grid System Adjustments */
.row {
    margin-left: -0.5rem;
    margin-right: -0.5rem;
}

.col, [class*="col-"] {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
}

/* Spacing for Mobile */
.mt-5 { margin-top: 2rem !important; }
.mb-5 { margin-bottom: 2rem !important; }
.pt-5 { padding-top: 2rem !important; }
.pb-5 { padding-bottom: 2rem !important; }

@media (min-width: 768px) {
    .mt-5 { margin-top: 3rem !important; }
    .mb-5 { margin-bottom: 3rem !important; }
    .pt-5 { padding-top: 3rem !important; }
    .pb-5 { padding-bottom: 3rem !important; }
}

/* Touch-friendly Checkboxes and Radio */
.form-check-input {
    width: 20px;
    height: 20px;
    margin-top: 0.25rem;
}

.form-check-label {
    padding-left: 0.5rem;
    line-height: 1.5;
}

/* Progress Bars */
.progress {
    height: 20px;
}

.progress-bar {
    font-size: 12px;
    line-height: 20px;
}

/* Tooltip and Popover Mobile */
.tooltip, .popover {
    font-size: 14px;
}

/* Loading Overlay */
#loadingOverlay .spinner-border {
    width: 3rem;
    height: 3rem;
}

/* Print Styles */
@media print {
    .demo-controls,
    .navbar,
    footer {
        display: none !important;
    }
    
    .container {
        width: 100% !important;
        max-width: 100% !important;
    }
}

/* Landscape Orientation */
@media screen and (orientation: landscape) and (max-height: 500px) {
    .dashboard-card, .form-section {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    h1, h2, h3, h4, h5, h6 {
        margin-bottom: 0.75rem;
    }
}

/* High DPI Screens */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    body {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}

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

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #121212;
        color: #e0e0e0;
    }
    
    .dashboard-card, .form-section, .card {
        background-color: #fcfbfb;
        border-color: #333;
    }
    
    .text-muted {
        color: #aaa !important;
    }
}

/* iPhone Notch Safe Areas */
@supports (padding: max(0px)) {
    body, .navbar, footer {
        padding-left: min(0vmin, env(safe-area-inset-left));
        padding-right: min(0vmin, env(safe-area-inset-right));
    }
    
    .demo-controls {
        right: max(10px, env(safe-area-inset-right));
        bottom: max(10px, env(safe-area-inset-bottom));
    }
}

/* Purdue University OPT/CPT Verification System Styles */

/* Table styles */
.table th {
    font-weight: 600;
    color: var(--primary-color);
    background-color: #f8fafc;
}

/* Card improvements */
.card {
    border: 1px solid #e2e8f0;
    border-radius: 10px;
}

/* Form improvements */
.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

/* Mobile optimizations */
@media (max-width: 576px) {
    .btn {
        padding: 0.375rem 0.75rem;
        font-size: 0.875rem;
    }
    
    .table {
        font-size: 0.875rem;
    }
    
    .dashboard-card {
        padding: 1rem;
    }
}

/* Print styles */
@media print {
    .demo-controls,
    .navbar,
    footer {
        display: none !important;
    }
}