/* ===== ROOT VARIABLES ===== */
:root {
    --primary: #1D67AD;
    --primary-dark: #15568F;
    --secondary: #4CC0B5;
    --brand-start: #4CC0B5;
    --brand-end: #1D67AD;
    --brand-gradient: linear-gradient(135deg, var(--brand-start) 0%, var(--brand-end) 100%);
    --success: #10B981;
    --danger: #0F4C81;
    --warning: #F59E0B;

    --text-dark: #1F2937;
    --text-gray: #6B7280;
    --text-light: #9CA3AF;
    --bg-light: #F9FAFB;
    --bg-white: #FFFFFF;
    --border: #E5E7EB;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

    --spacing: 16px;
}

/* Visually-hidden utility for accessible labels */
.sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-white);
    line-height: 1.6;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 700;
}

h1 { font-size: 48px; }
h2 { font-size: 36px; }
h3 { font-size: 24px; }
h4 { font-size: 18px; }

p {
    color: var(--text-gray);
    line-height: 1.7;
}

/* ===== CONTAINER ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing);
}

.mobile-only {
    display: none;
}

/* ===== BUTTONS ===== */
button, .btn-primary, .btn-secondary, .btn-submit {
    font-family: inherit;
    border: none;
    cursor: pointer;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    padding: 12px 28px;
}

.btn-primary {
    background: var(--brand-gradient);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: var(--brand-gradient);
    filter: brightness(0.95);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.btn-submit {
    background: var(--primary);
    color: white;
    width: 100%;
    padding: 14px;
    font-size: 16px;
}

.btn-submit:hover {
    background: var(--primary-dark);
}

.btn-nav {
    padding: 8px 16px;
    background: var(--brand-gradient);
    color: white;
    border-radius: 6px;
}

/* ===== NAVIGATION ===== */
.navbar {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}

.logo-text {
    font-size: 24px;
    font-weight: 800;
    color: var(--brand-end);
    background: var(--brand-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Logo image (falls back to text) */
.logo-img {
    height: 36px;
    width: auto;
    display: inline-block;
    vertical-align: middle;
    margin-right: 10px;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--primary);
}

/* ===== HERO SECTION ===== */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(76, 192, 181, 0.12) 0%, rgba(29, 103, 173, 0.08) 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 52px;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--text-dark);
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-gray);
    margin-bottom: 32px;
    line-height: 1.6;
}

.hero-stats {
    display: flex;
    gap: 24px;
    margin: 40px 0;
}

.stat-badge {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 20px;
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.stat-number {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 13px;
    color: var(--text-gray);
    margin-top: 4px;
    font-weight: 500;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin: 32px 0;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image .demo-placeholder {
    width: 75%;
}

.demo-placeholder {
    background: var(--brand-gradient);
    border-radius: 20px;
    padding: 0;
    color: white;
    text-align: center;
    min-height: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.demo-placeholder svg {
    margin-bottom: 20px;
}

.demo-placeholder p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
}

/* ===== DEMO SECTION ===== */
.demo-section {
    display: none;
    padding: 80px 0;
    background: var(--bg-white);
}

.section-title {
    text-align: center;
    font-size: 42px;
    margin-bottom: 16px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-gray);
    font-size: 18px;
    margin-bottom: 48px;
}

.video-container {
    margin-bottom: 60px;
}

.video-placeholder {
    background: linear-gradient(135deg, rgba(76, 192, 181, 0.16), rgba(29, 103, 173, 0.12));
    border-radius: 16px;
    aspect-ratio: 16 / 9;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.video-placeholder:hover {
    transform: scale(1.02);
}

.demo-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 16px;
    display: block;
    background: #000;
}

.play-button-large {
    width: 120px;
    height: 120px;
    background: rgba(79, 70, 229, 0.1);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.3s ease;
}

.video-placeholder:hover .play-button-large {
    background: rgba(79, 70, 229, 0.2);
    transform: scale(1.1);
}

.demo-flow {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.flow-step {
    text-align: center;
    padding: 24px;
    background: var(--bg-light);
    border-radius: 12px;
}

.flow-step h3 {
    color: var(--primary);
    margin-bottom: 12px;
}

.flow-step p {
    font-size: 14px;
}

/* ===== PROBLEM SECTION ===== */
.problem-section {
    padding: 80px 0;
    background: white;
}

.pain-points {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
    margin: 48px 0;
}

.pain-point {
    background: var(--bg-light);
    padding: 32px;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease;
}

.pain-point:hover {
    transform: translateY(-8px);
}

.pain-point .icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.pain-point h4 {
    margin: 16px 0 12px;
}

.pain-point p {
    font-size: 14px;
    font-style: italic;
}

.interview-highlight {
    background: linear-gradient(135deg, rgba(76, 192, 181, 0.1), rgba(29, 103, 173, 0.08));
    border-left: 4px solid var(--danger);
    padding: 40px;
    border-radius: 12px;
    margin-top: 48px;
}

.interview-highlight p {
    font-style: italic;
}

.problem-stats {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.stat-box {
    background: white;
    padding: 32px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-md);
}

.stat-huge {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary);
    display: block;
}

.stat-text {
    color: var(--text-gray);
    font-size: 16px;
    margin-top: 8px;
}

/* ===== SOLUTION SECTION ===== */
.solution-section {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(76, 192, 181, 0.12) 0%, rgba(29, 103, 173, 0.08) 100%);
}

.solution-highlights {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 24px;
    margin: 48px 0;
}

.highlight-card {
    background: white;
    padding: 32px;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.highlight-card:hover {
    transform: translateY(-8px);
}

.highlight-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.highlight-card h3 {
    margin: 16px 0 12px;
}

.highlight-card p {
    font-size: 14px;
}

.value-prop {
    background: white;
    padding: 40px;
    border-radius: 12px;
    margin: 48px 0 0;
    box-shadow: var(--shadow-sm);
}

.value-prop h3 {
    margin-bottom: 24px;
    color: var(--primary);
}

.value-prop ul {
    list-style: none;
}

.value-prop li {
    padding: 12px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: flex-start;
}

.value-prop li:last-child {
    border-bottom: none;
}

.value-prop strong {
    color: var(--primary);
    margin-right: 12px;
    min-width: 120px;
}

/* ===== TRACTION SECTION ===== */
.traction-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.traction-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}

.traction-card {
    background: white;
    padding: 32px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-md);
    border-top: 4px solid var(--success);
}

.traction-number {
    font-size: 42px;
    font-weight: 700;
    color: var(--success);
    display: block;
}

.traction-title {
    font-size: 16px;
    color: var(--text-dark);
    margin: 12px 0 8px;
    font-weight: 600;
}

.traction-card p {
    font-size: 13px;
}

.testimonials {
    background: white;
    padding: 48px;
    border-radius: 12px;
    margin-bottom: 32px;
}

.testimonials h3 {
    margin-bottom: 32px;
    text-align: center;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.testimonial {
    padding: 24px;
    background: var(--bg-light);
    border-radius: 8px;
    border-left: 4px solid var(--success);
}

.testimonial p {
    font-size: 15px;
    line-height: 1.8;
}

.waitlist-metric {
    background: linear-gradient(135deg, var(--success), #34D399);
    color: white;
    padding: 32px;
    border-radius: 12px;
    text-align: center;
}

.waitlist-metric h4,
.waitlist-metric p {
    color: white;
}

/* ===== WHY NOW SECTION ===== */
.why-now-section {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(76, 192, 181, 0.05) 0%, rgba(29, 103, 173, 0.05) 100%);
}

.why-now-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.why-now-card {
    background: white;
    padding: 32px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: transform 0.2s, box-shadow 0.2s;
}

.why-now-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

.why-now-icon {
    font-size: 48px;
    margin-bottom: 16px;
    display: block;
}

.why-now-card h3 {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.why-now-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

/* ===== BUSINESS SECTION ===== */
.business-section {
    padding: 80px 0;
    background: white;
}

.business-model {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin: 48px 0;
}

.revenue-stream {
    background: var(--bg-light);
    padding: 32px;
    border-radius: 12px;
    border-top: 4px solid var(--primary);
}

.price {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    margin: 12px 0 16px;
}

.revenue-stream ul {
    list-style: none;
    margin-top: 16px;
}

.revenue-stream li {
    padding: 8px 0;
    font-size: 14px;
    padding-left: 24px;
    position: relative;
}

.revenue-stream li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 700;
}

.unit-economics {
    background: linear-gradient(135deg, rgba(76, 192, 181, 0.1), rgba(29, 103, 173, 0.08));
    padding: 40px;
    border-radius: 12px;
}

.unit-economics h3 {
    margin-bottom: 24px;
    color: var(--primary);
}

.econ-table {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.econ-row {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.econ-row span:last-child {
    font-weight: 600;
    color: var(--primary);
}

/* ===== ROADMAP SECTION ===== */
.roadmap-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.roadmap {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.roadmap-phase {
    background: white;
    padding: 32px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.roadmap-phase h3 {
    color: var(--primary);
    margin-bottom: 20px;
    font-size: 18px;
}

.phase-items {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.item {
    font-size: 14px;
    line-height: 1.6;
}

/* ===== COMPETITIVE SECTION ===== */
.competitive-section {
    padding: 80px 0;
    background: white;
}

.compact-competitive {
    display: none;
}

.compact-item {
    background: var(--bg-light);
    border-radius: 10px;
    padding: 14px 16px;
    font-size: 14px;
    line-height: 1.5;
}

.compact-item strong {
    color: var(--primary);
}

.comparison {
    display: grid;
    gap: 32px;
    margin: 48px 0;
}

.comparison-row {
    display: grid;
    grid-template-columns: 1fr 120px 1fr;
    gap: 24px;
    align-items: center;
}

.comparison .option {
    background: var(--bg-light);
    padding: 24px;
    border-radius: 12px;
}

.comparison .option h4 {
    margin-bottom: 12px;
    color: var(--danger);
}

.comparison .option p {
    font-size: 13px;
    margin: 6px 0;
}

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

.comparison .vs img {
    width: 52px;
    height: 52px;
    object-fit: contain;
    display: inline-block;
}

.advantages {
    background: var(--brand-gradient);
    color: white;
    padding: 48px;
    border-radius: 12px;
    margin: 48px 0 0;
}

.advantages h3 {
    color: white;
    margin-bottom: 24px;
}

.moat-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.moat-item {
    padding: 20px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    border-left: 3px solid rgba(255, 255, 255, 0.9);
    color: rgba(255, 255, 255, 0.98);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.moat-item strong {
    display: block;
    margin-bottom: 8px;
    color: #E6FFFB;
}

/* ===== ASK SECTION ===== */
.ask-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.ask-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin: 48px 0;
}

.ask-box {
    background: white;
    padding: 32px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.ask-box h3 {
    margin-bottom: 24px;
    color: var(--primary);
}

.spend-breakdown {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.spend-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.spend-label {
    font-size: 14px;
    color: var(--text-dark);
}

.spend-percent {
    background: var(--bg-light);
    padding: 4px 12px;
    border-radius: 4px;
    font-weight: 600;
    color: var(--primary);
}

.ask-box ul {
    list-style: none;
}

.ask-box li {
    padding: 10px 0;
    font-size: 15px;
}

.investor-cta {
    text-align: center;
    margin-top: 60px;
}

.investor-cta h3 {
    margin-bottom: 12px;
}

.investor-cta p {
    font-size: 16px;
    margin-bottom: 24px;
}

/* ===== WAITLIST SECTION ===== */
.waitlist-section {
    padding: 80px 0;
    background: var(--brand-gradient);
    color: white;
}

.waitlist-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.waitlist-content h2 {
    color: white;
    margin-bottom: 12px;
}

.waitlist-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 18px;
    margin-bottom: 32px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-row.full {
    grid-template-columns: 1fr;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    padding: 12px;
    border: none;
    border-radius: 6px;
    font-family: inherit;
    font-size: 14px;
    width: 100%;
}

.contact-form textarea {
    resize: vertical;
}

.form-note {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.8);
}

.success-message {
    background: var(--success);
    color: white;
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 24px;
    font-weight: 600;
}

/* ===== PITCH DOCS SECTION ===== */
.pitch-docs {
    padding: 60px 0;
    background: white;
    border-top: 1px solid var(--border);
}

.pitch-docs h3 {
    text-align: center;
    margin-bottom: 40px;
}

.docs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.doc-card {
    background: var(--bg-light);
    padding: 32px;
    border-radius: 12px;
    transition: transform 0.3s ease;
}

.doc-card:hover {
    transform: translateY(-4px);
}

.doc-card h4 {
    margin-bottom: 12px;
    color: var(--primary);
}

.doc-card p {
    font-size: 14px;
    margin-bottom: 16px;
}

.doc-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
}

.doc-link:hover {
    text-decoration: underline;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 40px 0;
    border-top: 1px solid var(--border);
}

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

.footer-bottom p {
    color: white;
}

.footer-bottom a {
    color: var(--secondary);
    text-decoration: none;
}

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


/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 36px;
    }

    .section-title {
        font-size: 32px;
    }

    .hero-stats,
    .business-model,
    .roadmap,
    .moat-list,
    .testimonial-grid,
    .docs-grid {
        grid-template-columns: 1fr;
    }

    .solution-highlights,
    .traction-grid,
    .why-now-grid {
        display: grid !important;
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
        gap: 12px;
    }

    .highlight-card {
        padding: 20px;
    }

    .demo-flow {
        grid-template-columns: 1fr;
    }

    .pain-points {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 12px;
    }

    .pain-point {
        padding: 16px;
    }

    .pain-point p {
        font-size: 13px;
    }

    .comparison-row {
        grid-template-columns: 1fr;
    }

    .comparison .vs {
        padding: 20px 0;
    }

    .comparison .vs img {
        width: 44px;
        height: 44px;
    }

    .demo-section,
    .value-prop {
        display: none;
    }

    .desktop-only {
        display: none !important;
    }

    .mobile-only {
        display: inline-block;
    }

    .nav-content {
        gap: 10px;
    }

    .nav-links {
        gap: 8px;
    }

    .nav-links a:not(.btn-nav) {
        display: none;
    }

    .nav-links .btn-nav {
        font-size: 13px;
        padding: 7px 12px;
        white-space: nowrap;
    }

    .hero-cta {
        flex-direction: column;
    }

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

    .ask-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 14px;
    }

    h1 { font-size: 32px; }
    h2 { font-size: 24px; }
    h3 { font-size: 18px; }

    .container {
        padding: 0 12px;
    }

    .hero {
        padding: 40px 0;
    }

    .solution-highlights,
    .traction-grid,
    .why-now-grid {
        display: grid !important;
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
        gap: 10px;
    }

    .demo-section,
    .problem-section,
    .solution-section,
    .traction-section,
    .business-section,
    .roadmap-section,
    .competitive-section,
    .ask-section,
    .waitlist-section {
        padding: 40px 0;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .stat-badge {
        padding: 12px 16px;
    }

    .stat-number {
        font-size: 24px;
    }

    .stat-label {
        font-size: 12px;
    }
}