/* ============================================
   MODERN AUDIT SAAS PLATFORM - STYLE SYSTEM
   ============================================ */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* ============================================
   CSS VARIABLES - THEME SYSTEM
   ============================================ */
:root {
    /* Legal Mode (Default) */
    --primary: #0f172a;
    --primary-light: #1e293b;
    --accent: #3b82f6;
    --accent-light: #60a5fa;
    --accent-dark: #2563eb;
    --gradient-start: #0f172a;
    --gradient-end: #1e40af;
    
    /* Neutral Colors */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    
    /* Status Colors */
    --success: #10b981;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --info: #3b82f6;
    --info-light: #dbeafe;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-glow: 0 0 40px -10px var(--accent);
    
    /* Spacing */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

/* Brand Mode Theme */
[data-theme="brand"],
.theme-brand {
    --primary: #581c87;
    --primary-light: #7c3aed;
    --accent: #a855f7;
    --accent-light: #c084fc;
    --accent-dark: #9333ea;
    --gradient-start: #581c87;
    --gradient-end: #7c3aed;
}

/* ============================================
   BASE STYLES
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   GLASSMORPHISM HEADER
   ============================================ */
.navbar-glass {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1rem 0;
}

.navbar-glass .navbar-brand {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.025em;
}

.navbar-glass .btn-nav {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

.navbar-glass .btn-nav:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
    transform: translateY(-1px);
}

.navbar-glass .btn-nav.active {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.4);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
    padding: 4rem 0 3rem;
    text-align: center;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    letter-spacing: -0.025em;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

/* ============================================
   MODE SELECTOR CARDS
   ============================================ */
.mode-selector-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    max-width: 700px;
    margin: 0 auto 2.5rem;
}

.mode-card {
    position: relative;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem 1.5rem;
    cursor: pointer;
    transition: var(--transition-base);
    text-align: center;
}

.mode-card:hover {
    border-color: var(--accent-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.mode-card.selected {
    border-color: var(--accent);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, rgba(59, 130, 246, 0.1) 100%);
    box-shadow: var(--shadow-glow);
}

.mode-card.selected.brand-card {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.05) 0%, rgba(168, 85, 247, 0.1) 100%);
}

.mode-card-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--accent);
    transition: var(--transition-base);
}

.mode-card.selected .mode-card-icon {
    background: var(--accent);
    color: white;
}

.mode-card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.mode-card-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.mode-card-check {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 24px;
    height: 24px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.75rem;
    opacity: 0;
    transform: scale(0.5);
    transition: var(--transition-fast);
}

.mode-card.selected .mode-card-check {
    opacity: 1;
    transform: scale(1);
}

/* ============================================
   URL INPUT - FLOATING LABEL STYLE
   ============================================ */
.url-input-container {
    max-width: 600px;
    margin: 0 auto 2rem;
}

.url-input-wrapper {
    position: relative;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.url-input-wrapper:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

.url-input-wrapper .form-control {
    border: none;
    background: transparent;
    padding: 1.5rem 1rem 0.75rem;
    font-size: 1rem;
    height: auto;
}

.url-input-wrapper .form-control:focus {
    box-shadow: none;
}

.url-input-wrapper .floating-label {
    position: absolute;
    top: 50%;
    left: 1rem;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1rem;
    pointer-events: none;
    transition: var(--transition-fast);
}

.url-input-wrapper .form-control:focus ~ .floating-label,
.url-input-wrapper .form-control:not(:placeholder-shown) ~ .floating-label {
    top: 0.75rem;
    transform: translateY(0);
    font-size: 0.75rem;
    color: var(--accent);
}

.url-input-wrapper .input-icon {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1.25rem;
}

/* ============================================
   MODERN BUTTONS
   ============================================ */
.btn-modern {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
}

.btn-modern-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(59, 130, 246, 0.4);
}

.btn-modern-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(59, 130, 246, 0.5);
    color: white;
}

.btn-modern-primary:active {
    transform: translateY(0);
}

.btn-modern-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-modern-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-modern-ghost {
    background: transparent;
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
}

.btn-modern-ghost:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* ============================================
   MODERN CARDS
   ============================================ */
.card-modern {
    background: var(--bg-secondary);
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.card-modern .card-body {
    padding: 2rem;
}

.card-modern-header {
    padding: 1.5rem 2rem;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-light);
}

/* ============================================
   STICKY RESULT HEADER
   ============================================ */
.result-sticky-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    margin-bottom: 2rem;
}

.result-sticky-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.result-site-info {
    flex: 1;
    min-width: 0;
}

.result-site-url {
    font-size: 0.875rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.result-mode-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.75rem;
    background: var(--accent);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

/* ============================================
   FILTER BAR
   ============================================ */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 0;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-light);
}

.filter-btn {
    padding: 0.5rem 1rem;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
}

.filter-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.filter-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

.filter-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    font-size: 0.75rem;
    margin-left: 0.375rem;
}

.filter-btn.active .filter-count {
    background: rgba(255, 255, 255, 0.2);
}

/* ============================================
   VIOLATION CARDS - MODERN STYLE
   ============================================ */
.violation-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.violation-card-modern {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-base);
    border: 1px solid var(--border-color);
}

/* Pending State (Default) */
.violation-card-modern.status-pending {
    opacity: 0.75;
    background: var(--bg-tertiary);
}

.violation-card-modern.status-pending .violation-content {
    filter: saturate(0.7);
}

/* Approved State */
.violation-card-modern.status-approved {
    opacity: 1;
    background: var(--bg-secondary);
    border-left: 4px solid var(--success);
    box-shadow: var(--shadow-lg);
}

.violation-card-modern.status-approved .approved-indicator {
    display: flex;
}

/* Card Header */
.violation-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-light);
}

.violation-header.severity-high {
    background: linear-gradient(135deg, var(--danger) 0%, #dc2626 100%);
    color: white;
}

.violation-header.severity-medium {
    background: linear-gradient(135deg, var(--warning) 0%, #d97706 100%);
    color: white;
}

.violation-number {
    font-weight: 600;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.violation-badges {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.badge-modern {
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.badge-severity-high {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.badge-severity-medium {
    background: rgba(0, 0, 0, 0.1);
    color: inherit;
}

.approved-indicator {
    display: none;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.75rem;
    background: var(--success);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

/* Card Content */
.violation-content {
    padding: 1.5rem;
}

.violation-reason {
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    border-left: 3px solid var(--accent);
}

/* Comparison View */
.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

@media (max-width: 768px) {
    .comparison-grid {
        grid-template-columns: 1fr;
    }
}

.comparison-block {
    border-radius: var(--radius-md);
    overflow: hidden;
}

.comparison-header {
    padding: 0.75rem 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.comparison-block.original .comparison-header {
    background: var(--danger);
    color: white;
}

.comparison-block.corrected .comparison-header {
    background: var(--success);
    color: white;
}

.comparison-body {
    padding: 1rem;
    font-size: 0.9375rem;
    line-height: 1.7;
    min-height: 100px;
}

.comparison-block.original .comparison-body {
    background: var(--danger-light);
    color: var(--text-primary);
}

.comparison-block.corrected .comparison-body {
    background: var(--success-light);
    color: var(--text-primary);
}

/* Editable Textarea for Corrected Text */
.editable-container {
    position: relative;
}

.suggestion-textarea {
    width: 100%;
    min-height: 100px;
    padding: 1rem;
    font-size: 0.9375rem;
    line-height: 1.7;
    font-family: inherit;
    background: transparent;
    border: 2px solid transparent;
    border-radius: 0;
    resize: none;
    overflow-y: hidden;
    transition: var(--transition-fast);
    color: var(--text-primary);
    box-sizing: border-box;
}

.suggestion-textarea:focus {
    outline: none;
    border-color: var(--accent);
    background: white;
    box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.1);
}

.suggestion-textarea.modified {
    border-color: var(--warning);
    background: rgba(255, 193, 7, 0.05);
}

.suggestion-textarea.saved {
    border-color: var(--success);
}

/* Edit hint icon */
.edit-hint {
    margin-left: auto;
    opacity: 0.7;
    font-size: 0.875rem;
    animation: pulse-hint 2s ease-in-out infinite;
}

@keyframes pulse-hint {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.comparison-block.corrected .comparison-header {
    justify-content: flex-start;
}

/* Button with changes indicator */
.btn-approve.has-changes {
    background: var(--warning);
    color: #000;
    animation: pulse-btn 1.5s ease-in-out infinite;
}

.btn-approve.has-changes:hover {
    background: #e0a800;
}

@keyframes pulse-btn {
    0%, 100% { box-shadow: 0 0 0 0 rgba(255, 193, 7, 0.4); }
    50% { box-shadow: 0 0 0 8px rgba(255, 193, 7, 0); }
}

/* Card Actions */
.violation-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
}

.btn-approve {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-approve:hover {
    background: var(--accent-dark);
    transform: translateY(-1px);
}

.btn-approve.approved {
    background: transparent;
    color: var(--text-secondary);
    padding: 0.5rem 0.75rem;
    font-weight: 500;
}

.btn-approve.approved:hover {
    color: var(--danger);
    transform: none;
}

.btn-copy {
    padding: 0.5rem 0.75rem;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-copy:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* ============================================
   MODERN OFFCANVAS
   ============================================ */
.offcanvas-modern {
    width: 50% !important;
    max-width: 700px;
    min-width: 400px;
}

@media (max-width: 992px) {
    .offcanvas-modern {
        width: 85% !important;
    }
}

.offcanvas-modern .offcanvas-header {
    padding: 1.5rem;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.offcanvas-modern .offcanvas-body {
    padding: 1.5rem;
    padding-bottom: 100px;
}

.offcanvas-sticky-footer {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem 1.5rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

/* ============================================
   STATS CARDS
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

@media (max-width: 992px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.stat-card-modern {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition-base);
}

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

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.stat-value.danger { color: var(--danger); }
.stat-value.warning { color: var(--warning); }
.stat-value.success { color: var(--success); }

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-sublabel {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* ============================================
   RECENT SCANS TABLE
   ============================================ */
.table-modern {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.table-modern thead th {
    padding: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.table-modern tbody td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-light);
    vertical-align: middle;
}

.table-modern tbody tr:hover {
    background: var(--bg-tertiary);
}

.table-modern tbody tr:last-child td {
    border-bottom: none;
}

/* ============================================
   LOADING STATES
   ============================================ */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */
.toast-modern {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 9999;
}

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */
@media (max-width: 768px) {
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .mode-selector-container {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .navbar-glass .d-flex.gap-2 {
        flex-wrap: wrap;
        justify-content: flex-end;
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    .navbar-glass,
    .result-sticky-header,
    .filter-bar,
    .btn-approve,
    .btn-copy,
    .offcanvas {
        display: none !important;
    }
    
    .violation-card-modern {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
    }
}