/* ============================================
   AURORA UI — Fraud Document Detector
   Dark base, ethereal gradients, glassmorphism
   ============================================ */

:root {
    --bg-deep: #0a0e1a;
    --bg-surface: rgba(255, 255, 255, 0.04);
    --glass: rgba(255, 255, 255, 0.06);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-hover: rgba(255, 255, 255, 0.1);
    --text-primary: #e8ecf4;
    --text-secondary: rgba(232, 236, 244, 0.55);
    --text-muted: rgba(232, 236, 244, 0.35);
    --accent: #7c6cf0;
    --accent-glow: rgba(124, 108, 240, 0.4);
    --aurora-1: #6366f1;
    --aurora-2: #06b6d4;
    --aurora-3: #a855f7;
    --success: #34d399;
    --success-bg: rgba(52, 211, 153, 0.12);
    --danger: #f87171;
    --danger-bg: rgba(248, 113, 113, 0.12);
    --warning: #fbbf24;
    --warning-bg: rgba(251, 191, 36, 0.12);
    --radius: 16px;
    --radius-sm: 10px;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background: var(--bg-deep);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ---- Aurora Background ---- */
.aurora-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.aurora-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.35;
    animation: drift 20s ease-in-out infinite alternate;
}

.aurora-orb-1 {
    width: 600px; height: 600px;
    background: radial-gradient(circle, var(--aurora-1), transparent 70%);
    top: -10%; left: -5%;
    animation-duration: 22s;
}

.aurora-orb-2 {
    width: 500px; height: 500px;
    background: radial-gradient(circle, var(--aurora-2), transparent 70%);
    top: 40%; right: -10%;
    animation-duration: 18s;
    animation-delay: -5s;
}

.aurora-orb-3 {
    width: 450px; height: 450px;
    background: radial-gradient(circle, var(--aurora-3), transparent 70%);
    bottom: -5%; left: 30%;
    animation-duration: 25s;
    animation-delay: -10s;
}

@keyframes drift {
    0%   { transform: translate(0, 0) scale(1); }
    50%  { transform: translate(40px, -30px) scale(1.1); }
    100% { transform: translate(-20px, 20px) scale(0.95); }
}

/* ---- Layout ---- */
.container {
    position: relative;
    z-index: 1;
    max-width: 1100px;
    margin: 0 auto;
    padding: 32px 24px;
}

/* ---- Header ---- */
header { margin-bottom: 36px; }

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--aurora-2);
    background: rgba(6, 182, 212, 0.12);
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 12px;
}

header h1 {
    font-size: 2.4rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #e8ecf4 0%, var(--aurora-2) 50%, var(--aurora-3) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

header p {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 300;
}

/* ---- Glass Card ---- */
.card {
    background: var(--glass);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 28px;
    margin-bottom: 24px;
    transition: border-color 0.3s ease;
}

.card:hover {
    border-color: rgba(255,255,255,0.12);
}

/* ---- Step Indicator ---- */
.step-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 28px;
    gap: 0;
}

.step {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: all 0.4s ease;
}

.step.active {
    color: var(--text-primary);
    background: rgba(124, 108, 240, 0.15);
}

.step-num {
    width: 22px; height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 600;
    border: 1.5px solid var(--text-muted);
    transition: all 0.4s ease;
}

.step.active .step-num {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
    box-shadow: 0 0 12px var(--accent-glow);
}

.step-line {
    width: 36px;
    height: 1px;
    background: rgba(255,255,255,0.1);
}

/* ---- Upload ---- */
.upload-area {
    border: 1.5px dashed rgba(255,255,255,0.12);
    border-radius: var(--radius-sm);
    padding: 48px 24px;
    text-align: center;
    min-height: 220px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-area:hover {
    border-color: var(--accent);
    background: rgba(124, 108, 240, 0.05);
}

.upload-icon {
    color: var(--text-muted);
    margin-bottom: 16px;
    transition: color 0.3s;
}

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

.upload-title {
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.upload-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.upload-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 14px;
}

.upload-success { text-align: center; }

.s3-uri {
    font-size: 0.8rem;
    color: var(--text-secondary);
    background: rgba(255,255,255,0.04);
    padding: 8px 12px;
    border-radius: 6px;
    margin: 10px 0;
    word-break: break-all;
    font-family: 'JetBrains Mono', monospace;
}

.file-preview {
    margin-top: 15px;
    padding: 10px;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    background: rgba(255,255,255,0.03);
}

.file-preview img {
    border-radius: 6px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

/* ---- Buttons ---- */
.btn-primary {
    background: var(--accent);
    color: white;
    border: none;
    padding: 10px 24px;
    border-radius: 8px;
    cursor: pointer;
    font-family: 'Outfit', sans-serif;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 0 20px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 0 30px var(--accent-glow);
}

.btn-analyze {
    width: 100%;
    margin-top: 16px;
    padding: 14px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: 'Outfit', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--aurora-1), var(--aurora-3));
    color: white;
    transition: all 0.3s ease;
    box-shadow: 0 4px 24px rgba(99, 102, 241, 0.3);
}

.btn-analyze:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 6px 32px rgba(99, 102, 241, 0.4);
}

.btn-analyze:disabled {
    background: rgba(255,255,255,0.06);
    color: var(--text-muted);
    cursor: not-allowed;
    box-shadow: none;
}

/* ---- Loading ---- */
.loading-section {
    text-align: center;
    padding: 60px 28px;
}

.loading-ring {
    width: 48px; height: 48px;
    border: 3px solid rgba(255,255,255,0.08);
    border-top: 3px solid var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

.loading-text {
    font-weight: 500;
    font-size: 1.05rem;
    margin-bottom: 6px;
}

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

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

/* ---- Upload Spinner ---- */
.upload-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.upload-spinner .loading-ring {
    margin-bottom: 1rem;
}

.upload-progress {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

/* ---- Results ---- */
.section-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.results-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 28px;
}

.results-left, .results-right {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Overall Score */
.overall-score {
    text-align: center;
    padding: 24px;
    background: rgba(255,255,255,0.03);
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
}

.overall-score h3 {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 12px;
}

.score-display {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--aurora-2), var(--aurora-3));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 8px 0 12px;
}

.recommendation {
    font-size: 0.85rem;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 20px;
    display: inline-block;
    letter-spacing: 0.02em;
}

.recommendation.accept { background: var(--success-bg); color: var(--success); }
.recommendation.review { background: var(--warning-bg); color: var(--warning); }
.recommendation.deny   { background: var(--danger-bg);  color: var(--danger); }

/* Metrics */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
}

.metric-card {
    text-align: center;
    padding: 16px 12px;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.02);
    transition: border-color 0.3s;
}

.metric-card:hover {
    border-color: rgba(255,255,255,0.15);
}

.metric-card h4 {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.metric-value {
    display: block;
    margin-top: 8px;
    font-weight: 600;
    font-size: 1rem;
    font-family: 'JetBrains Mono', monospace;
}

/* Recommendations Panel */
.recommendations-panel {
    background: rgba(255,255,255,0.03);
    border-radius: var(--radius-sm);
    padding: 24px;
    border: 1px solid var(--glass-border);
    border-left: 3px solid var(--accent);
    height: 100%;
}

.recommendations-panel h3 {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 16px;
}

/* Markdown Content */
.markdown-content {
    line-height: 1.75;
    font-size: 0.9rem;
    color: var(--text-primary);
    overflow-y: auto;
    max-height: 480px;
}

.markdown-content::-webkit-scrollbar { width: 4px; }
.markdown-content::-webkit-scrollbar-track { background: transparent; }
.markdown-content::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }

.markdown-content h1, .markdown-content h2, .markdown-content h3 {
    margin: 16px 0 8px;
    color: var(--aurora-2);
    letter-spacing: -0.01em;
}

.markdown-content h1 { font-size: 1.2rem; }
.markdown-content h2 { font-size: 1.1rem; }
.markdown-content h3 { font-size: 1rem; }

.markdown-content p { margin-bottom: 10px; }

.markdown-content ul, .markdown-content ol {
    padding-left: 20px;
    margin-bottom: 10px;
}

.markdown-content li { margin-bottom: 4px; }

.markdown-content strong { color: var(--aurora-2); }

.markdown-content code {
    background: rgba(255,255,255,0.08);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.82rem;
    font-family: 'JetBrains Mono', monospace;
}

.markdown-content blockquote {
    border-left: 2px solid var(--accent);
    padding-left: 12px;
    margin: 10px 0;
    color: var(--text-secondary);
    font-style: italic;
}

.markdown-content hr {
    border: none;
    border-top: 1px solid var(--glass-border);
    margin: 14px 0;
}

.markdown-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 10px 0;
}

.markdown-content th, .markdown-content td {
    border: 1px solid var(--glass-border);
    padding: 6px 10px;
    text-align: left;
    font-size: 0.85rem;
}

.markdown-content th {
    background: rgba(255,255,255,0.05);
    font-weight: 600;
}

/* Approval */
.approval-section {
    border-top: 1px solid var(--glass-border);
    padding-top: 24px;
}

.approval-section h3 {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 16px;
}

.approval-buttons {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.btn-accept, .btn-deny {
    flex: 1;
    padding: 14px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-family: 'Outfit', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.btn-accept {
    background: var(--success-bg);
    color: var(--success);
    border-color: rgba(52, 211, 153, 0.2);
}

.btn-accept:hover {
    background: rgba(52, 211, 153, 0.2);
    box-shadow: 0 0 20px rgba(52, 211, 153, 0.15);
}

.btn-deny {
    background: var(--danger-bg);
    color: var(--danger);
    border-color: rgba(248, 113, 113, 0.2);
}

.btn-deny:hover {
    background: rgba(248, 113, 113, 0.2);
    box-shadow: 0 0 20px rgba(248, 113, 113, 0.15);
}

#reviewComments {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    resize: vertical;
    font-family: 'Outfit', sans-serif;
    font-size: 0.9rem;
    background: rgba(255,255,255,0.03);
    color: var(--text-primary);
    transition: border-color 0.3s;
}

#reviewComments:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

#reviewComments::placeholder {
    color: var(--text-muted);
}

/* Status Messages */
.status-message {
    margin-top: 20px;
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    text-align: center;
    font-weight: 500;
    display: none;
    backdrop-filter: blur(12px);
}

.status-message.success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(52, 211, 153, 0.2);
}

.status-message.error {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(248, 113, 113, 0.2);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .container { padding: 20px 16px; }

    header h1 { font-size: 1.8rem; }

    .results-layout { grid-template-columns: 1fr; }

    .metrics-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }

    .approval-buttons { flex-direction: column; }

    .step-label { display: none; }

    .aurora-orb { opacity: 0.2; }
}