/* Apple-Inspired Modern Design System */

:root {
    /* Logo-inspired gradient color palette */
    --brand-teal: #20B2AA;
    --brand-teal-light: #40E0D0;
    --brand-blue: #4169E1;
    --brand-blue-dark: #1E3A8A;
    --brand-purple: #9370DB;
    --brand-purple-dark: #6A4C93;
    
    /* Dashboard dark theme colors - matching reference design exactly */
    --dashboard-bg: linear-gradient(135deg, #1a2332 0%, #2d3748 50%, #4c1d95 100%);
    --dashboard-card: #2a3441;
    --dashboard-border: rgba(255, 255, 255, 0.08);
    --dashboard-text: #ffffff;
    --dashboard-text-muted: #ffffff;
    --dashboard-accent: #22d3ee;
    
    /* Light theme colors */
    --light-dashboard-bg: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #cbd5e1 100%);
    --light-dashboard-card: #ffffff;
    --light-dashboard-border: rgba(0, 0, 0, 0.08);
    --light-dashboard-text: #1e293b;
    --light-dashboard-text-muted: #64748b;
    --light-dashboard-accent: #0ea5e9;
    
    /* Legacy aliases for compatibility */
    --apple-blue: var(--brand-blue);
    --apple-blue-hover: var(--brand-blue-dark);
    --apple-green: var(--brand-purple);
    
    /* Grays remain the same */
    --apple-gray-1: #F2F2F7;
    --apple-gray-2: #E5E5EA;
    --apple-gray-3: #C7C7CC;
    --apple-gray-4: #8E8E93;
    --apple-gray-5: #636366;
    --apple-gray-6: #48484A;
    --apple-gray-7: #3A3A3C;
    --apple-gray-8: #1C1C1E;
    
    --apple-red: #FF3B30;
    --apple-orange: #FF9500;
    --apple-yellow: #FFCC00;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 16px -4px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    
    /* Typography */
    --font-system: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', system-ui, sans-serif;
    --font-mono: 'SF Mono', ui-monospace, 'Monaco', 'Cascadia Code', monospace;
}

/* Dashboard Dark Theme */
.dashboard-theme {
    background: var(--dashboard-bg) !important;
    min-height: 100vh;
    color: var(--dashboard-text);
}

.dashboard-theme .card {
    background: var(--dashboard-card);
    border: 1px solid var(--dashboard-border);
    backdrop-filter: blur(10px);
}

.dashboard-theme .navbar {
    background: rgba(0, 0, 0, 0.2) !important;
    border-bottom: 1px solid var(--dashboard-border);
}

.dashboard-card {
    background: var(--dashboard-card);
    border: 1px solid var(--dashboard-border);
    border-radius: 16px;
    padding: 1.5rem;
    transition: all 0.2s ease;
}

.dashboard-upload-area {
    background: var(--dashboard-card);
    border: 2px dashed rgba(34, 211, 238, 0.4);
    border-radius: 16px;
    padding: 3rem 2rem;
    text-align: center;
    transition: all 0.2s ease;
}

.dashboard-upload-area:hover {
    border-color: var(--dashboard-accent);
}

/* Light Theme Override */
.light-theme {
    --dashboard-bg: var(--light-dashboard-bg);
    --dashboard-card: var(--light-dashboard-card);
    --dashboard-border: var(--light-dashboard-border);
    --dashboard-text: var(--light-dashboard-text);
    --dashboard-text-muted: var(--light-dashboard-text-muted);
    --dashboard-accent: var(--light-dashboard-accent);
}

.light-theme .dashboard-card {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.light-theme .dashboard-upload-area {
    border-color: rgba(14, 165, 233, 0.3);
}

.light-theme .dashboard-upload-area:hover {
    border-color: var(--dashboard-accent);
    background: rgba(14, 165, 233, 0.05);
}

/* Theme Toggle Button */
.theme-toggle {
    background: var(--dashboard-card);
    border: 1px solid var(--dashboard-border);
    border-radius: 8px;
    padding: 0.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
}

.light-theme .theme-toggle:hover {
    background: rgba(0, 0, 0, 0.05);
}

/* Global styles */
* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-system);
    font-weight: 400;
    line-height: 1.6;
    color: var(--apple-gray-8);
    background: linear-gradient(135deg, rgba(32, 178, 170, 0.1) 0%, rgba(65, 105, 225, 0.1) 50%, rgba(147, 112, 219, 0.1) 100%);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--apple-gray-2);
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--apple-gray-8) !important;
}

/* Container improvements */
.container {
    max-width: 1200px;
}

/* Card redesign */
.card {
    background: rgba(255, 255, 255, 0.95);
    border: none;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(20px);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.card-body {
    padding: 2.5rem;
}

.card-title {
    font-weight: 600;
    color: var(--apple-gray-8);
    margin-bottom: 1.5rem;
    font-size: 1.75rem;
}

/* Modern upload area */
.upload-area {
    border: 2px dashed var(--apple-gray-3);
    border-radius: 20px;
    padding: 4rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 250, 252, 0.9) 100%);
    position: relative;
    overflow: hidden;
}

.upload-area::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--apple-blue) 0%, rgba(0, 122, 255, 0.8) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.upload-area:hover {
    border-color: var(--apple-blue);
    transform: scale(1.02);
    box-shadow: var(--shadow-md);
}

.upload-area:hover::before {
    opacity: 0.05;
}

.upload-area.dragover {
    border-color: var(--apple-blue);
    background: linear-gradient(135deg, rgba(0, 122, 255, 0.05) 0%, rgba(0, 122, 255, 0.1) 100%);
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.upload-content {
    position: relative;
    z-index: 2;
}

.upload-icon {
    margin-bottom: 1.5rem;
    opacity: 0.7;
    transition: all 0.3s ease;
}

.upload-area:hover .upload-icon {
    opacity: 1;
    transform: scale(1.1);
}

.upload-area h5 {
    font-weight: 600;
    color: var(--apple-gray-8);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.upload-area p {
    color: var(--apple-gray-5);
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

/* Modern buttons */
.btn {
    font-family: var(--font-system);
    font-weight: 500;
    border-radius: 12px;
    padding: 0.75rem 1.5rem;
    border: none;
    transition: all 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    font-size: 0.95rem;
    letter-spacing: -0.01em;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--apple-blue) 0%, #0056CC 100%);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--apple-blue-hover) 0%, #004499 100%);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-outline-danger {
    background: rgba(255, 59, 48, 0.1);
    color: var(--apple-red);
    border: 1px solid rgba(255, 59, 48, 0.3);
}

.btn-outline-danger:hover,
.btn-outline-danger.active {
    background: var(--apple-red);
    color: white;
    border-color: var(--apple-red);
}

.btn-outline-warning {
    background: rgba(255, 149, 0, 0.1);
    color: var(--apple-orange);
    border: 1px solid rgba(255, 149, 0, 0.3);
}

.btn-outline-warning:hover,
.btn-outline-warning.active {
    background: var(--apple-orange);
    color: white;
    border-color: var(--apple-orange);
}

.btn-outline-info {
    background: rgba(255, 204, 0, 0.1);
    color: #B8860B;
    border: 1px solid rgba(255, 204, 0, 0.3);
}

.btn-outline-info:hover,
.btn-outline-info.active {
    background: var(--apple-yellow);
    color: var(--apple-gray-8);
    border-color: var(--apple-yellow);
}

.btn-outline-secondary {
    background: rgba(142, 142, 147, 0.1);
    color: var(--apple-gray-5);
    border: 1px solid var(--apple-gray-3);
}

.btn-outline-secondary:hover,
.btn-outline-secondary.active {
    background: var(--apple-gray-5);
    color: white;
    border-color: var(--apple-gray-5);
}

/* Button groups */
.btn-group {
    gap: 0.5rem;
    flex-wrap: wrap;
}

.btn-group .btn {
    margin: 0;
    border-radius: 12px !important;
    flex: none;
}

/* Progress bar */
.progress {
    height: 6px;
    border-radius: 20px;
    background-color: var(--apple-gray-2);
    overflow: hidden;
}

.progress-bar {
    background: linear-gradient(90deg, var(--apple-blue) 0%, #0056CC 100%);
    border-radius: 20px;
    transition: width 0.3s ease;
}

/* Alerts */
.alert {
    border: none;
    border-radius: 16px;
    padding: 1.25rem 1.5rem;
    font-weight: 500;
    box-shadow: var(--shadow-sm);
}

.alert-danger {
    background: linear-gradient(135deg, rgba(255, 59, 48, 0.1) 0%, rgba(255, 59, 48, 0.05) 100%);
    color: var(--apple-red);
    border-left: 4px solid var(--apple-red);
}

.alert-success {
    background: linear-gradient(135deg, rgba(52, 199, 89, 0.1) 0%, rgba(52, 199, 89, 0.05) 100%);
    color: var(--apple-green);
    border-left: 4px solid var(--apple-green);
}

/* Severity styling */
.severity-critical {
    color: var(--apple-red) !important;
    font-weight: 600;
}

.severity-major {
    color: var(--apple-orange) !important;
    font-weight: 600;
}

.severity-minor {
    color: #B8860B !important;
    font-weight: 500;
}

.severity-advisory {
    color: var(--apple-gray-5) !important;
    font-weight: 500;
}

/* Finding cards */
.finding-card {
    margin-bottom: 1.5rem;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.finding-card .card {
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
}

.finding-card:hover {
    transform: translateY(-4px);
}

.finding-card .card-body {
    padding: 1.75rem;
}

.finding-card .card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.finding-card .card-text {
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--apple-gray-6);
}

.finding-card .card-text small {
    font-size: 0.85rem;
    color: var(--apple-gray-5);
}

/* Sheet sections */
.sheet-section {
    margin-bottom: 3rem;
}

.sheet-section h3,
.sheet-section h5 {
    font-weight: 600;
    color: var(--apple-gray-8);
    margin-bottom: 2rem;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Feature list */
.list-unstyled li {
    padding: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    color: var(--apple-gray-6);
}

/* Footer */
footer {
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--apple-gray-2);
    margin-top: 4rem;
}

/* Modal improvements */
.modal-content {
    border-radius: 20px;
    border: none;
    box-shadow: var(--shadow-xl);
    backdrop-filter: blur(20px);
}

.modal-header {
    border-bottom: 1px solid var(--apple-gray-2);
    padding: 1.5rem 2rem;
}

.modal-body {
    padding: 2rem;
    max-height: 70vh;
    overflow-y: auto;
}

.modal-footer {
    border-top: 1px solid var(--apple-gray-2);
    padding: 1.5rem 2rem;
}

/* Code elements */
code {
    background: var(--apple-gray-1);
    color: var(--apple-blue);
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 500;
}

/* Pricing grid responsive layout */
.pricing-grid {
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 1.5rem !important;
    max-width: 500px !important;
    margin: 0 auto !important;
}

/* Two columns on tablets and desktop */
@media (min-width: 768px) {
    .pricing-grid {
        grid-template-columns: 1fr 1fr !important;
        max-width: 600px !important;
    }
}

/* Responsive design */
@media (max-width: 768px) {
    .card-body {
        padding: 2rem 1.5rem;
    }
    
    .upload-area {
        padding: 3rem 1.5rem;
    }
    
    .btn-group {
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .btn-group .btn {
        flex: 1;
        min-width: auto;
    }
    
    .finding-card .card-body {
        padding: 1.5rem;
    }
    
    /* Mobile pricing adjustments */
    .pricing-grid {
        max-width: 100% !important;
        padding: 0 1rem;
    }
    
    /* Ensure proper touch targets on mobile (44x44px minimum) */
    .pricing-grid button[type="submit"] {
        min-height: 44px !important;
        padding: 0.875rem 1.5rem !important;
        font-size: 1rem !important;
        font-weight: 600 !important;
        border-radius: 12px !important;
        width: 100% !important;
        touch-action: manipulation;
    }
    
    /* Mobile pricing card adjustments */
    .pricing-grid > div > div {
        padding: 1.25rem !important;
        min-height: auto !important;
        height: auto !important;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card,
.finding-card,
.alert {
    animation: fadeInUp 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--apple-gray-1);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: var(--apple-gray-4);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--apple-gray-5);
}

/* Hide elements */
.sheet-section.hidden {
    display: none !important;
}

/* Print styles */
@media print {
    .navbar,
    footer,
    .btn-group,
    .modal {
        display: none !important;
    }
    
    .card {
        border: 1px solid var(--apple-gray-3);
        box-shadow: none;
        break-inside: avoid;
    }
    
    body {
        background: white;
    }
}

/* Loading spinner animation */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}