/* ====================================================================
   Modern Dark Theme Design System for mod-scanner Wasm
   ==================================================================== */

:root {
    --bg-dark: #0b0f19;
    --bg-card: rgba(18, 24, 38, 0.75);
    --bg-card-hover: rgba(28, 38, 58, 0.85);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-focus: rgba(99, 102, 241, 0.5);

    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --accent-primary: #6366f1;
    --accent-primary-hover: #4f46e5;
    
    --color-clean: #10b981;
    --color-clean-bg: rgba(16, 185, 129, 0.12);
    --color-clean-border: rgba(16, 185, 129, 0.3);

    --color-flagged: #f59e0b;
    --color-flagged-bg: rgba(245, 158, 11, 0.12);
    --color-flagged-border: rgba(245, 158, 11, 0.3);

    --color-reject: #f43f5e;
    --color-reject-bg: rgba(244, 63, 94, 0.12);
    --color-reject-border: rgba(244, 63, 94, 0.3);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.6);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.12) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(16, 185, 129, 0.08) 0px, transparent 50%);
    background-attachment: fixed;
    color: var(--text-primary);
    font-family: var(--font-sans);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    -webkit-font-smoothing: antialiased;
}

.app-container {
    width: 100%;
    max-width: 960px;
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* ====================================================================
   Header
   ==================================================================== */

.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.brand-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    background: linear-gradient(135deg, var(--accent-primary), #a855f7);
    color: #fff;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.app-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.badge-wasm {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    background: rgba(99, 102, 241, 0.2);
    border: 1px solid rgba(99, 102, 241, 0.4);
    color: #818cf8;
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-full);
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.2rem;
}

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

.pill {
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.3rem 0.75rem;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.pill-glow {
    background: rgba(16, 185, 129, 0.15);
    border-color: rgba(16, 185, 129, 0.3);
    color: #34d399;
}

/* ====================================================================
   Cards & Glassmorphism
   ==================================================================== */

.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
}

/* ====================================================================
   Initialization Card
   ==================================================================== */

.init-card {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    border-color: rgba(99, 102, 241, 0.3);
}

.init-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.spinner-ring {
    width: 32px;
    height: 32px;
    border: 3px solid rgba(99, 102, 241, 0.2);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    flex-shrink: 0;
}

.spinner-ring.sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

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

.progress-bar-container {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width 0.3s ease;
}

.init-fill {
    background: linear-gradient(90deg, var(--accent-primary), #a855f7);
}

.scan-fill {
    background: linear-gradient(90deg, #38bdf8, var(--accent-primary));
}

/* ====================================================================
   Tab Navigation
   ==================================================================== */

.tab-nav {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.6rem 1rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
}

.tab-btn.active {
    color: var(--text-primary);
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

/* ====================================================================
   Dropzone
   ==================================================================== */

.dropzone {
    background: var(--bg-card);
    border: 2px dashed rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.dropzone:hover, .dropzone.dragover {
    border-color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.06);
    transform: translateY(-2px);
}

.dropzone-icon {
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
}

.dropzone h3 {
    font-size: 1.15rem;
    font-weight: 600;
}

.dropzone code {
    background: rgba(255, 255, 255, 0.08);
    padding: 0.15rem 0.4rem;
    border-radius: var(--radius-sm);
    color: #818cf8;
    font-family: var(--font-mono);
}

.dropzone-features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ====================================================================
   Form Inputs & Buttons
   ==================================================================== */

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-input, .form-textarea {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    transition: border-color 0.2s ease;
    width: 100%;
}

.form-input:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.url-input-group {
    display: flex;
    gap: 0.75rem;
    margin: 1.25rem 0 0.75rem 0;
}

.url-hints {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.url-hints code {
    background: rgba(255, 255, 255, 0.05);
    padding: 0.15rem 0.4rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
}

.btn {
    background: var(--accent-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    padding: 0.7rem 1.25rem;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-icon {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-icon:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.btn-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
}

.btn-close:hover {
    color: var(--text-primary);
}

/* ====================================================================
   Settings Drawer
   ==================================================================== */

.settings-drawer {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.5rem;
    animation: slideDown 0.2s ease;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.settings-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

/* ====================================================================
   Live Scanning Card
   ==================================================================== */

.scan-status-card {
    border-color: rgba(56, 189, 248, 0.3);
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.scan-status-header {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.badge-status {
    margin-left: auto;
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.85rem;
    background: rgba(56, 189, 248, 0.15);
    color: #38bdf8;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-full);
}

/* ====================================================================
   Results View
   ==================================================================== */

.results-section {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 1.5rem;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.status-banner {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.75rem 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid;
    flex-wrap: wrap;
}

.status-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    flex-shrink: 0;
}

.status-details {
    flex: 1;
    min-width: 250px;
}

.status-top {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.status-top h2 {
    font-size: 1.35rem;
    font-weight: 700;
}

.status-pill {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.status-summary {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: 0.3rem;
}

.status-actions {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}

/* Banner Colors */
.banner-clean {
    background: var(--color-clean-bg);
    border-color: var(--color-clean-border);
}
.banner-clean .status-icon {
    background: var(--color-clean);
    color: #0b0f19;
}
.banner-clean .status-pill {
    background: var(--color-clean);
    color: #0b0f19;
}

.banner-flagged {
    background: var(--color-flagged-bg);
    border-color: var(--color-flagged-border);
}
.banner-flagged .status-icon {
    background: var(--color-flagged);
    color: #0b0f19;
}
.banner-flagged .status-pill {
    background: var(--color-flagged);
    color: #0b0f19;
}

.banner-reject {
    background: var(--color-reject-bg);
    border-color: var(--color-reject-border);
}
.banner-reject .status-icon {
    background: var(--color-reject);
    color: #fff;
}
.banner-reject .status-pill {
    background: var(--color-reject);
    color: #fff;
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

.metric-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.metric-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.metric-value {
    font-size: 1.75rem;
    font-weight: 700;
    font-family: var(--font-mono);
}

.text-danger { color: var(--color-reject); }
.text-warning { color: var(--color-flagged); }
.text-success { color: var(--color-clean); }
.text-mono { font-family: var(--font-mono); font-size: 0.85rem; }
.truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* Violations Section */
.violations-section, .flags-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 0.4rem;
}
.dot-danger { background: var(--color-reject); }
.dot-warning { background: var(--color-flagged); }

.violations-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.violation-item {
    background: rgba(244, 63, 94, 0.06);
    border: 1px solid rgba(244, 63, 94, 0.2);
    border-radius: var(--radius-md);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.violation-title {
    font-weight: 600;
    color: var(--color-reject);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.violation-path {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-primary);
}

.violation-reason {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Flags / 3-Panel Diff Gallery */
.flags-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 1.25rem;
}

.flag-card {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.flag-header {
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.flag-path {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
}

.flag-score-badge {
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: #fbbf24;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-full);
}

.flag-image-box {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: #11141a;
    cursor: pointer;
    position: relative;
}

.flag-image-box img {
    max-width: 100%;
    height: auto;
    image-rendering: pixelated;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease;
}

.flag-image-box:hover img {
    transform: scale(1.02);
}

.flag-footer {
    padding: 0.75rem 1rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
    border-top: 1px solid var(--border-color);
}

/* ====================================================================
   Image Modal Lightbox
   ==================================================================== */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 1.5rem;
    animation: fadeIn 0.15s ease;
}

.modal-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    position: relative;
    box-shadow: var(--shadow-lg);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1.25rem;
}

.modal-image-container img {
    max-width: 100%;
    max-height: 70vh;
    image-rendering: pixelated;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
}

.modal-labels {
    display: flex;
    gap: 2rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* ====================================================================
   Footer
   ==================================================================== */

.app-footer {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.app-footer a {
    color: var(--accent-primary);
    text-decoration: none;
}

.app-footer a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 640px) {
    .app-header { flex-direction: column; align-items: flex-start; }
    .status-banner { flex-direction: column; align-items: flex-start; }
    .url-input-group { flex-direction: column; }
    .flags-gallery { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .modal-labels { flex-direction: column; gap: 0.4rem; text-align: center; }
}