/* ===================================
   Upload-to-Insight Portal - Styles
   =================================== */

/* CSS Variables */
:root {
    --color-primary: #1a2744;
    --color-accent: #d4a039;
    --color-bg: #f8f7f4;
    --color-text: #2d2d2d;
    --color-text-light: #5a5a5a;
    --color-success: #2d5a3d;
    --color-error: #a63d3d;
    --color-border: #e0ded9;
    --color-white: #ffffff;

    --font-heading: 'DM Serif Display', Georgia, serif;
    --font-body: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    --transition: 0.2s ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
}

/* Container */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.logo h1 {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 400;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.tagline {
    font-size: 1.05rem;
    color: var(--color-text-light);
}

/* Main Content */
.main-content {
    flex: 1;
}

/* Input Section */
.input-section {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

/* Tab Navigation */
.tab-nav {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--color-border);
    padding-bottom: 0;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: none;
    border: none;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-light);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    bottom: -2px;
    border-bottom: 2px solid transparent;
}

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

.tab-btn.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-accent);
}

.tab-btn svg {
    opacity: 0.7;
}

.tab-btn.active svg {
    opacity: 1;
}

/* Tab Content */
.tab-content {
    margin-bottom: 1.5rem;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Upload Zone */
.upload-zone {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-md);
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: var(--color-bg);
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--color-accent);
    background: rgba(212, 160, 57, 0.05);
}

.upload-zone.dragover {
    transform: scale(1.01);
}

.upload-icon {
    color: var(--color-text-light);
    margin-bottom: 1rem;
}

.upload-zone:hover .upload-icon,
.upload-zone.dragover .upload-icon {
    color: var(--color-accent);
}

.upload-text {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.upload-subtext {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: 0.75rem;
}

.upload-formats {
    font-size: 0.85rem;
    color: var(--color-text-light);
    opacity: 0.8;
}

/* File Preview */
.file-preview {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background: var(--color-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.file-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.file-info svg {
    color: var(--color-accent);
}

.file-name {
    font-weight: 500;
    color: var(--color-text);
}

.file-size {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

.remove-file {
    padding: 0.5rem;
    background: none;
    border: none;
    color: var(--color-text-light);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.remove-file:hover {
    background: var(--color-border);
    color: var(--color-error);
}

/* Text Input */
.text-input {
    width: 100%;
    min-height: 200px;
    padding: 1rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    resize: vertical;
    transition: var(--transition);
}

.text-input:focus {
    outline: none;
    border-color: var(--color-accent);
}

.text-input::placeholder {
    color: var(--color-text-light);
    opacity: 0.7;
}

.char-count {
    text-align: right;
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-top: 0.5rem;
}

.char-count.warning {
    color: var(--color-accent);
}

.char-count.error {
    color: var(--color-error);
}

/* Depth Section */
.depth-section {
    margin-bottom: 1.5rem;
}

.depth-section h3 {
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.depth-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.depth-option {
    cursor: pointer;
}

.depth-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.depth-card {
    display: block;
    padding: 1rem;
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    text-align: center;
    transition: var(--transition);
}

.depth-option:hover .depth-card {
    border-color: var(--color-text-light);
}

.depth-option input:checked + .depth-card {
    border-color: var(--color-accent);
    background: rgba(212, 160, 57, 0.08);
}

.depth-title {
    display: block;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.depth-desc {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-light);
}

/* Analyze Button */
.analyze-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 1rem 2rem;
    background: var(--color-primary);
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 1.05rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
}

.analyze-btn:hover:not(:disabled) {
    background: #243452;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.analyze-btn:active:not(:disabled) {
    transform: translateY(0);
}

.analyze-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-loading {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.spinner {
    animation: spin 1s linear infinite;
}

.spinner-circle {
    stroke-dasharray: 50;
    stroke-dashoffset: 20;
}

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

/* Error Message */
.error-message {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    background: rgba(166, 61, 61, 0.1);
    border: 1px solid rgba(166, 61, 61, 0.3);
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    color: var(--color-error);
}

.error-message svg {
    flex-shrink: 0;
    margin-top: 0.1rem;
}

/* Report Section */
.report-section {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 2rem;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.report-header h2 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-primary);
}

.report-meta {
    display: flex;
    gap: 0.75rem;
}

.report-depth,
.report-type {
    font-size: 0.8rem;
    padding: 0.25rem 0.75rem;
    background: var(--color-bg);
    border-radius: 20px;
    color: var(--color-text-light);
}

.report-depth {
    background: rgba(212, 160, 57, 0.15);
    color: #996b00;
}

/* Report Content */
.report-content {
    line-height: 1.7;
    color: var(--color-text);
}

.report-content h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 400;
    color: var(--color-primary);
    margin: 1.5rem 0 0.75rem 0;
}

.report-content h3:first-child {
    margin-top: 0;
}

.report-content p {
    margin-bottom: 1rem;
}

.report-content ul,
.report-content ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.report-content li {
    margin-bottom: 0.5rem;
}

.report-content strong {
    color: var(--color-primary);
}

.report-content blockquote {
    margin: 1rem 0;
    padding: 1rem;
    background: var(--color-bg);
    border-left: 3px solid var(--color-accent);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.report-content .highlight {
    background: rgba(212, 160, 57, 0.15);
    padding: 0.1rem 0.3rem;
    border-radius: var(--radius-sm);
}

/* Report Actions */
.report-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text);
    cursor: pointer;
    transition: var(--transition);
}

.action-btn:hover {
    background: var(--color-border);
}

.action-btn.copied {
    background: var(--color-success);
    color: var(--color-white);
    border-color: var(--color-success);
}

.action-btn.primary {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.action-btn.primary:hover {
    background: #243452;
}

/* Feedback Section */
.feedback-section {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.feedback-question {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: 1rem;
}

.feedback-buttons {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
}

.feedback-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--color-text-light);
    cursor: pointer;
    transition: var(--transition);
}

.feedback-btn:hover {
    border-color: var(--color-text-light);
    color: var(--color-text);
}

.feedback-btn.selected {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.feedback-thanks {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--color-success);
}

/* Footer */
.footer {
    margin-top: 3rem;
    text-align: center;
}

.privacy-note {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: rgba(45, 90, 61, 0.08);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    color: var(--color-success);
    margin-bottom: 1rem;
}

.copyright {
    font-size: 0.8rem;
    color: var(--color-text-light);
}

/* Responsive */
@media (max-width: 640px) {
    .container {
        padding: 1.5rem 1rem;
    }

    .logo h1 {
        font-size: 1.75rem;
    }

    .tagline {
        font-size: 0.95rem;
    }

    .depth-options {
        grid-template-columns: 1fr;
    }

    .depth-card {
        padding: 0.75rem;
    }

    .report-header {
        flex-direction: column;
        gap: 0.75rem;
        text-align: center;
    }

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

    .feedback-btn {
        justify-content: center;
    }
}

/* Charts Section */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.chart-container {
    background: linear-gradient(135deg, #fafafa 0%, #f5f5f5 100%);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    min-height: 320px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.chart-container:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
}

.chart-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 50%, var(--color-success) 100%);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.chart-container canvas {
    max-height: 280px;
}

/* Section titles in reports */
.section-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--color-primary);
    margin: 2rem 0 1rem 0;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--color-border);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: var(--color-accent);
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.metric-card {
    background: linear-gradient(135deg, var(--color-primary) 0%, #243452 100%);
    color: var(--color-white);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: 0 4px 12px rgba(26, 39, 68, 0.2);
    transition: transform 0.2s ease;
}

.metric-card:hover {
    transform: translateY(-2px);
}

.metric-card:nth-child(2) {
    background: linear-gradient(135deg, var(--color-success) 0%, #1e4a2d 100%);
    box-shadow: 0 4px 12px rgba(45, 90, 61, 0.2);
}

.metric-card:nth-child(3) {
    background: linear-gradient(135deg, var(--color-accent) 0%, #b8862e 100%);
    box-shadow: 0 4px 12px rgba(212, 160, 57, 0.2);
}

.metric-card:nth-child(4) {
    background: linear-gradient(135deg, #6b4423 0%, #4a2e18 100%);
    box-shadow: 0 4px 12px rgba(107, 68, 35, 0.2);
}

.metric-value {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.metric-label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.9;
}

/* Insights Text */
.insights-text {
    background: var(--color-bg);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--color-accent);
}

.insights-text h3 {
    color: var(--color-primary);
    font-family: var(--font-heading);
    margin-top: 1.25rem;
}

.insights-text h3:first-child {
    margin-top: 0;
}

/* Concern Cards */
.concern-card {
    background: linear-gradient(135deg, #fff8e6 0%, #fff5d9 100%);
    border-left: 4px solid var(--color-accent);
    padding: 1rem 1.25rem;
    margin: 0.75rem 0;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-size: 0.95rem;
    color: #7a5500;
    box-shadow: 0 2px 4px rgba(212, 160, 57, 0.1);
}

.concern-card.critical {
    background: linear-gradient(135deg, #fee 0%, #fdd 100%);
    border-left-color: var(--color-error);
    color: #8b3030;
    box-shadow: 0 2px 4px rgba(166, 61, 61, 0.1);
}

/* Data Tables */
.table-title {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 1.5rem 0 0.75rem 0;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    font-size: 0.9rem;
    background: var(--color-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.data-table th,
.data-table td {
    padding: 0.875rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.data-table th {
    background: var(--color-primary);
    color: var(--color-white);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

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

.data-table tr:hover td {
    background: rgba(212, 160, 57, 0.05);
}

.data-table td:last-child {
    text-align: right;
    font-weight: 500;
    color: var(--color-primary);
}

/* Report Footer */
.report-footer {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
    text-align: center;
    font-size: 0.8rem;
    color: var(--color-text-light);
}

/* ===================================
   Tier Selection Section
   =================================== */

.tier-section {
    margin-bottom: 1.5rem;
}

.tier-section h3 {
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.tier-options {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
}

.tier-option {
    cursor: pointer;
}

.tier-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.tier-card {
    display: block;
    padding: 1rem;
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    text-align: center;
    transition: var(--transition);
    position: relative;
}

.tier-option:hover .tier-card {
    border-color: var(--color-text-light);
}

.tier-option input:checked + .tier-card {
    border-color: var(--color-accent);
    background: rgba(212, 160, 57, 0.08);
}

/* Free tier styling */
.tier-free-card {
    border-style: dashed;
}

.tier-free-card .tier-tag {
    display: inline-block;
    background: var(--color-success);
    color: white;
    font-size: 0.65rem;
    padding: 0.15rem 0.5rem;
    border-radius: 10px;
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* Premium tier styling */
.tier-premium-card {
    background: linear-gradient(135deg, #fafafa 0%, #f5f5f5 100%);
}

.tier-premium-card .tier-tag {
    display: inline-block;
    background: var(--color-accent);
    color: white;
    font-size: 0.65rem;
    padding: 0.15rem 0.5rem;
    border-radius: 10px;
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.tier-title {
    display: block;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.tier-desc {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-light);
    line-height: 1.4;
}

.tier-price {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-top: 0.5rem;
}

/* ===================================
   Tier Badges in Reports
   =================================== */

.tier-badge {
    font-size: 0.8rem;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-weight: 500;
}

.tier-badge.tier-free {
    background: rgba(45, 90, 61, 0.15);
    color: var(--color-success);
}

.tier-badge.tier-simple {
    background: rgba(212, 160, 57, 0.15);
    color: #996b00;
}

.tier-badge.tier-detailed {
    background: rgba(26, 39, 68, 0.15);
    color: var(--color-primary);
}

.tier-badge.tier-exhaustive {
    background: linear-gradient(135deg, rgba(26, 39, 68, 0.2) 0%, rgba(212, 160, 57, 0.2) 100%);
    color: var(--color-primary);
    border: 1px solid rgba(212, 160, 57, 0.3);
}

.domain-badge {
    font-size: 0.8rem;
    padding: 0.25rem 0.75rem;
    background: var(--color-bg);
    border-radius: 20px;
    color: var(--color-text-light);
}

/* ===================================
   Teaser Section (Free Tier Upsell)
   =================================== */

.teaser-section {
    background: linear-gradient(135deg, #fff8e6 0%, #fff5d9 100%);
    border: 2px dashed var(--color-accent);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin: 2rem 0;
    text-align: center;
}

.teaser-header {
    margin-bottom: 1rem;
}

.teaser-header h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.teaser-stats {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.teaser-stats strong {
    color: var(--color-accent);
}

.teaser-missing {
    margin: 1rem 0;
}

.teaser-missing h4 {
    font-size: 0.85rem;
    color: var(--color-text);
    margin-bottom: 0.75rem;
}

.missing-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
}

.missing-item {
    background: white;
    padding: 0.4rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--color-text);
    border: 1px solid rgba(212, 160, 57, 0.3);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.teaser-message {
    font-size: 0.9rem;
    color: #7a5500;
    font-style: italic;
    margin-bottom: 1rem;
}

.teaser-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.pricing-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--color-accent);
    color: white;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.pricing-btn:hover {
    background: #c49432;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.new-analysis-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
}

.new-analysis-btn:hover {
    background: var(--color-border);
}

/* ===================================
   Upgrade Modal
   =================================== */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    border-radius: var(--radius-lg);
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.modal-header h2 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.modal-header p {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-text-light);
    transition: color 0.2s;
}

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

.modal-subtitle {
    color: var(--color-text-light);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.modal-features {
    margin: 1.5rem 0;
}

.feature-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.95rem;
    color: var(--color-text);
}

.feature-row:last-child {
    border-bottom: none;
}

.feature-check {
    color: var(--color-success);
    font-weight: bold;
}

.modal-pricing {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.modal-pricing .pricing-btn {
    flex: 1;
    flex-direction: column;
    padding: 1rem;
    text-align: center;
}

.modal-pricing .pricing-btn .price {
    font-size: 1.25rem;
    font-weight: 700;
    display: block;
}

.modal-pricing .pricing-btn .plan-name {
    font-size: 0.85rem;
    opacity: 0.9;
}

.modal-pricing .pricing-btn.featured {
    background: var(--color-primary);
    position: relative;
}

.modal-pricing .pricing-btn .plan-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--color-accent);
    color: white;
    font-size: 0.65rem;
    padding: 0.2rem 0.5rem;
    border-radius: 10px;
    text-transform: uppercase;
    font-weight: 600;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-border);
}

.feature-list li:last-child {
    border-bottom: none;
}

.feature-list .feature-icon {
    color: var(--color-success);
    flex-shrink: 0;
}

.feature-list .feature-text {
    font-size: 0.95rem;
    color: var(--color-text);
}

.feature-list .feature-text strong {
    display: block;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}

/* ===================================
   How It Works Section
   =================================== */

.how-it-works {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
    margin-top: 2rem;
}

.how-it-works h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    color: var(--color-primary);
    text-align: center;
    margin-bottom: 1rem;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.step {
    text-align: center;
    padding: 0.75rem;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    background: var(--color-accent);
    color: white;
    border-radius: 50%;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.step-title {
    display: block;
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.step-desc {
    font-size: 0.75rem;
    color: var(--color-text-light);
    line-height: 1.4;
}

/* ===================================
   Analysis Cards in Report
   =================================== */

.analysis-card {
    background: var(--color-bg);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    margin-bottom: 1rem;
    border-left: 4px solid var(--color-accent);
}

.analysis-card h4 {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.analysis-card .analysis-type {
    display: inline-block;
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
    background: rgba(26, 39, 68, 0.1);
    color: var(--color-primary);
    border-radius: 10px;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

/* ===================================
   Responsive Adjustments for Tier Section
   =================================== */

@media (max-width: 800px) {
    .tier-options {
        grid-template-columns: repeat(2, 1fr);
    }

    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 500px) {
    .tier-options {
        grid-template-columns: 1fr;
    }

    .steps-grid {
        grid-template-columns: 1fr;
    }

    .teaser-actions {
        flex-direction: column;
    }

    .pricing-btn,
    .new-analysis-btn {
        width: 100%;
        justify-content: center;
    }
}

/* ===================================
   Randomization Notice
   =================================== */

.randomization-notice {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    background: rgba(45, 90, 61, 0.08);
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    color: var(--color-success);
}

.randomization-notice svg {
    flex-shrink: 0;
    margin-top: 0.1rem;
}

/* ===================================
   Utility Classes
   =================================== */

[hidden] {
    display: none !important;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}