/* Design System Variables */
:root {
    /* Primary Colors */
    --navy: #0D3D67;
    /* Shield navy - primary brand color */
    --sky-blue: #54AEEF;
    /* Person icon - accent & CTAs */
    --white: #FFFFFF;
    /* Base background */

    /* Extended Palette */
    --navy-dark: #0A2F4F;
    /* Darker navy for text */
    --navy-light: #1A5080;
    /* Hover states */
    --sky-light: #7BC4F5;
    /* Light accents */
    --gray-50: #F8FAFC;
    /* Subtle backgrounds */
    --gray-100: #F1F5F9;
    /* Card backgrounds */
    --gray-200: #E2E8F0;
    /* Borders */
    --gray-600: #475569;
    /* Secondary text */
    --gray-900: #0F172A;
    /* Primary text */

    /* Status Colors */
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 5rem;

    /* 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);

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
}

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

html {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    line-height: 1.5;
    color: var(--gray-900);
    background-color: var(--white);
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s;
}

ul {
    list-style: none;
}

img,
svg {
    display: block;
    max-width: 100%;
}

/* Layout Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

.section {
    padding-top: var(--spacing-xxl);
    padding-bottom: var(--spacing-xxl);
}

.grid {
    display: grid;
    gap: var(--spacing-lg);
}

/* Components */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all 0.2s;
    cursor: pointer;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--sky-blue);
    color: var(--white);
}

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

.btn-secondary {
    background-color: var(--white);
    color: var(--navy);
    border-color: var(--gray-200);
}

.btn-secondary:hover {
    border-color: var(--navy);
    background-color: var(--gray-50);
}

.btn-text {
    color: var(--sky-blue);
    padding: 0;
}

.btn-text:hover {
    text-decoration: underline;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--navy);
    line-height: 1.2;
    font-weight: 700;
}

h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
}

h2 {
    font-size: 2.25rem;
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--gray-600);
}

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

.text-lead {
    font-size: 1.25rem;
    color: var(--gray-600);
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    padding: var(--spacing-md) 0;
}

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

.brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--navy);
}

.logo-icon {
    width: 40px;
    height: 40px;
}

.main-nav ul {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.main-nav a {
    font-weight: 500;
    color: var(--gray-600);
}

/* Navigation */
.main-nav a {
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--sky-blue);
    transition: width 0.2s;
}

.main-nav a:hover::after {
    width: 100%;
}

.auth-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

/* Hero Section */
.hero {
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.badge {
    display: inline-block;
    background-color: var(--gray-100);
    color: var(--navy);
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 999px;
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--gray-200);
}

.hero h1 {
    font-size: 3.5rem;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-lg);
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.sub-text {
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* Features (Quick Pitch) */
.feature-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.card {
    background-color: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: transform 0.2s, box-shadow 0.2s;
}

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

.feature-card .icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

/* AI Differentiator */
.bg-navy {
    background-color: var(--navy);
    color: var(--white);
}

.bg-navy h2 {
    color: var(--white);
}

.bg-navy p {
    color: var(--gray-200);
}

.row {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
}

.col {
    flex: 1;
}

.check-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--gray-100);
}

.check-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--sky-blue);
    font-weight: bold;
}

.secure-note {
    margin-top: var(--spacing-lg);
    font-size: 0.875rem;
    opacity: 0.8;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
}

.ai-visual-placeholder {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.confidence-score {
    text-align: center;
}

.confidence-score .score {
    display: block;
    font-size: 4rem;
    font-weight: 700;
    color: var(--success);
}

.confidence-score .label {
    display: block;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.8;
}

/* Dual Mode (Tabs) */
.tabs {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.tab-btn {
    background: none;
    border: none;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-600);
    padding: 0.5rem 1rem;
    cursor: pointer;
    border-bottom: 2px solid transparent;
}

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

.tab-content {
    background-color: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

.tab-pane {
    display: none;
    padding: var(--spacing-xl);
}

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

.split-view {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
}

.split-view .text {
    flex: 1;
}

.split-view .text ul {
    margin: var(--spacing-md) 0;
}

.split-view .text li {
    margin-bottom: var(--spacing-sm);
    padding-left: 1.5rem;
    position: relative;
}

.split-view .text li::before {
    content: '•';
    color: var(--sky-blue);
    position: absolute;
    left: 0;
    font-size: 1.5rem;
    line-height: 1;
}

.split-view .image,
.split-view .code {
    flex: 1;
}

.code pre {
    background-color: var(--gray-900);
    color: var(--gray-50);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    overflow-x: auto;
    font-family: monospace;
    font-size: 0.875rem;
}

.screenshot-placeholder {
    background-color: var(--white);
    height: 250px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-600);
    box-shadow: var(--shadow-md);
}

/* Products */
.bg-gray {
    background-color: var(--gray-50);
}

.product-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}

.product-card h4 {
    margin-bottom: var(--spacing-xs);
    color: var(--navy);
}

.product-card p {
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
}

.product-card .price {
    display: inline-block;
    background-color: var(--gray-100);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gray-600);
}

/* Pricing */
.pricing-table-wrapper {
    overflow-x: auto;
    margin-top: var(--spacing-xl);
}

.pricing-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.pricing-table th,
.pricing-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--gray-200);
}

.pricing-table th {
    font-weight: 600;
    color: var(--navy);
    background-color: var(--gray-50);
}

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

/* Footer */
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.brand-col p {
    color: var(--sky-light);
    margin-top: var(--spacing-sm);
}

.links-col h4 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.links-col ul li {
    margin-bottom: var(--spacing-sm);
}

.links-col a {
    color: var(--gray-200);
}

.links-col a:hover {
    color: var(--white);
}

.copright {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    color: var(--gray-600);
    font-size: 0.875rem;
}

.filter-white {
    filter: brightness(0) invert(1);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .row,
    .split-view {
        flex-direction: column;
    }

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

    .nav-wrapper {
        flex-wrap: wrap;
    }

    .main-nav {
        order: 3;
        width: 100%;
        margin-top: var(--spacing-md);
        display: none;
    }

    /* Hidden for MVP on mobile if no JS toggle yet, or stack it */
    .main-nav ul {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
}

/* Legal / Prose Content */
.legal-content {
    max-width: 800px;
    margin: 0 auto;
    padding-top: var(--spacing-xxl);
    padding-bottom: var(--spacing-xxl);
}

.legal-content h1 {
    margin-bottom: var(--spacing-lg);
}

.legal-content h2 {
    margin-top: var(--spacing-xl);
    font-size: 1.75rem;
}

.legal-content h3 {
    margin-top: var(--spacing-lg);
    font-size: 1.25rem;
}

.legal-content p,
.legal-content li {
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
    color: var(--gray-600);
}

.legal-content ul {
    list-style: disc;
    padding-left: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.legal-content .last-updated {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
}

.legal-content .sms-box,
.legal-content .contact-box {
    background-color: var(--gray-50);
    border-left: 4px solid var(--sky-blue);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.legal-content .highlight {
    background-color: var(--gray-200);
    padding: 0.2rem 0.4rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    color: var(--navy);
}

/* ============================================================
   Registration / Form Page Styles
   ============================================================ */

.register-page {
    min-height: 100vh;
    background-color: var(--gray-50);
    padding: var(--spacing-xl) var(--spacing-md);
}

.register-card {
    max-width: 680px;
    margin: 0 auto;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
}

.register-card h1 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-xs);
}

.register-card .register-subtitle {
    color: var(--gray-600);
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-xl);
}

/* Form fields */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: var(--spacing-xs);
}

.form-label .optional-tag {
    font-weight: 400;
    color: var(--gray-600);
    margin-left: 0.25rem;
}

.form-input {
    width: 100%;
    padding: 0.625rem 0.875rem;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.9375rem;
    color: var(--gray-900);
    background: var(--white);
    transition: border-color 0.15s, box-shadow 0.15s;
    outline: none;
}

.form-input:focus {
    border-color: var(--sky-blue);
    box-shadow: 0 0 0 3px rgba(84, 174, 239, 0.15);
}

.form-input.invalid {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.12);
}

.form-error {
    display: none;
    margin-top: var(--spacing-xs);
    font-size: 0.8125rem;
    color: var(--danger);
}

.form-error.visible {
    display: block;
}

/* Phone input wrapper with flag/prefix */
.phone-input-wrapper {
    display: flex;
    align-items: center;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.phone-input-wrapper:focus-within {
    border-color: var(--sky-blue);
    box-shadow: 0 0 0 3px rgba(84, 174, 239, 0.15);
}

.phone-input-wrapper.invalid {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.12);
}

.phone-prefix {
    padding: 0.625rem 0.75rem;
    background: var(--gray-50);
    border-right: 1px solid var(--gray-200);
    font-size: 0.9375rem;
    color: var(--gray-600);
    white-space: nowrap;
    user-select: none;
}

.phone-input-wrapper .form-input {
    border: none;
    box-shadow: none;
    border-radius: 0;
    flex: 1;
}

.phone-input-wrapper .form-input:focus {
    border: none;
    box-shadow: none;
}

/* SMS Disclosure box adjacent to phone field */
.sms-disclosure {
    background: #EFF8FF;
    border: 1px solid #BAE2FF;
    border-left: 4px solid var(--sky-blue);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    padding: var(--spacing-md);
    margin-top: var(--spacing-sm);
    font-size: 0.8125rem;
    color: var(--gray-900);
    line-height: 1.5;
}

.sms-disclosure strong {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--navy);
    margin-bottom: 0.375rem;
}

/* Section dividers within form */
.form-section {
    margin-bottom: var(--spacing-lg);
}

.form-section-title {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--gray-600);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--gray-200);
}

/* Verification options checkboxes */
.verification-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

.verify-option {
    display: flex;
    align-items: flex-start;
    gap: 0.625rem;
    padding: var(--spacing-md);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: border-color 0.15s, background-color 0.15s;
    user-select: none;
}

.verify-option:hover {
    border-color: var(--sky-blue);
    background: #F5FBFF;
}

.verify-option input[type="checkbox"] {
    margin-top: 0.15rem;
    accent-color: var(--sky-blue);
    width: 1rem;
    height: 1rem;
    flex-shrink: 0;
    cursor: pointer;
}

.verify-option-label {
    flex: 1;
}

.verify-option-label strong {
    display: block;
    font-size: 0.875rem;
    color: var(--navy);
    margin-bottom: 0.2rem;
}

.verify-option-label span {
    font-size: 0.8125rem;
    color: var(--gray-600);
}

/* Partner sharing info panel */
.partner-info-panel {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    font-size: 0.875rem;
}

.partner-info-panel h4 {
    font-size: 0.875rem;
    color: var(--navy);
    margin-bottom: var(--spacing-sm);
}

.partner-info-panel .receives,
.partner-info-panel .not-receives {
    margin-bottom: var(--spacing-sm);
}

.partner-info-panel .receives-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.partner-info-panel .receives-label.green { color: var(--success); }
.partner-info-panel .receives-label.red { color: var(--danger); }

.partner-info-panel ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.partner-info-panel ul li {
    font-size: 0.8125rem;
    color: var(--gray-600);
    padding: 0.125rem 0;
}

.partner-info-panel ul li::before {
    margin-right: 0.375rem;
}

.partner-info-panel .receives ul li::before { content: '✓'; color: var(--success); }
.partner-info-panel .not-receives ul li::before { content: '✗'; color: var(--danger); }

/* Consent checkboxes */
.consent-group {
    margin-bottom: var(--spacing-md);
}

.consent-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: var(--spacing-md);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    background: var(--white);
    transition: border-color 0.15s;
}

.consent-item.required-consent {
    border-left: 3px solid var(--sky-blue);
}

.consent-item.conditional-consent {
    border-left: 3px solid var(--warning);
}

.consent-item.hidden {
    display: none;
}

.consent-item input[type="checkbox"] {
    margin-top: 0.15rem;
    accent-color: var(--sky-blue);
    width: 1.1rem;
    height: 1.1rem;
    flex-shrink: 0;
    cursor: pointer;
}

.consent-item label {
    font-size: 0.875rem;
    color: var(--gray-600);
    line-height: 1.55;
    cursor: pointer;
}

.consent-item label strong {
    display: block;
    color: var(--gray-900);
    margin-bottom: 0.25rem;
    font-size: 0.875rem;
}

.consent-item label a {
    color: var(--sky-blue);
    text-decoration: underline;
}

/* Submit button */
.submit-btn {
    width: 100%;
    padding: 0.875rem;
    font-size: 1rem;
    font-weight: 700;
    border: none;
    border-radius: var(--radius-md);
    background: var(--sky-blue);
    color: var(--white);
    cursor: pointer;
    transition: background 0.2s, opacity 0.2s;
    margin-top: var(--spacing-md);
}

.submit-btn:hover:not(:disabled) {
    background: var(--navy);
}

.submit-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Success state */
.register-success {
    display: none;
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.register-success .success-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.register-success h2 {
    margin-bottom: var(--spacing-sm);
}

.register-success p {
    color: var(--gray-600);
    max-width: 420px;
    margin: 0 auto var(--spacing-md);
}

/* Mobile responsive adjustments */
@media (max-width: 640px) {
    .register-card {
        padding: var(--spacing-lg);
    }

    .form-row,
    .verification-options {
        grid-template-columns: 1fr;
    }
}