:root {
    /* Founder OS Inspired Palette */
    --bg-main: #F4F5F7;
    /* Very light cool gray/off-white */
    --bg-card: #FFFFFF;
    /* Pure white for cards */
    --text-primary: #111827;
    /* Deep charcoal gray, nearly black */
    --text-secondary: #4B5563;
    /* Slate gray for readable body text */
    --accent-lime: #D6F32F;
    /* Vibrant Founder OS Lime Green */
    --accent-lime-hover: #C2DE28;
    --border-light: #E5E7EB;
    /* Soft gray for subtle borders */

    /* Typography */
    --font-heading: 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Layout */
    --container-width: 1200px;
    --container-sm: 800px;

    /* Shadows - Soft and diffused */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.025);
    --shadow-card: 0 20px 40px -10px rgba(0, 0, 0, 0.03);

    /* Radii */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-pill: 9999px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1,
h2,
h3,
h4 {
    font-family: var(--font-heading);
    font-weight: 800;
    /* Extra bold for punchy headers */
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--text-primary);
}

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

h1.headline {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    margin-bottom: 1.5rem;
    font-weight: 800;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    letter-spacing: -0.02em;
}

p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    max-width: 65ch;
}

.subheadline {
    font-size: clamp(1.125rem, 2vw, 1.35rem);
    margin-bottom: 3rem;
    color: var(--text-secondary);
    font-weight: 400;
    line-height: 1.5;
}

/* Layout Utilities */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.container-sm {
    max-width: var(--container-sm);
}

section {
    padding: 6rem 0;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--accent-lime);
    color: #000;
    border: none;
}

.btn-primary:hover {
    background-color: var(--accent-lime-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(214, 243, 47, 0.3);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

.btn-nav {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-light);
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
}

.btn-nav:hover {
    background: white;
    box-shadow: var(--shadow-sm);
}

/* Header / Float Nav */
.sys-header {
    position: fixed;
    top: 1rem;
    left: 0;
    width: 100%;
    z-index: 1000;
    display: flex;
    justify-content: center;
    padding: 0 1rem;
}

.nav-container {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: var(--radius-pill);
    padding: 0.5rem 1rem 0.5rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 900px;
    /* Thinner float bar */
    box-shadow: var(--shadow-md);
}

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

.logo-mark {
    width: 24px;
    height: 24px;
    background-color: var(--accent-lime);
    border-radius: 50%;
}

.brand-name {
    font-weight: 800;
    font-size: 1.1rem;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
}

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

/* Mega Menu Dropdown */
.nav-dropdown {
    position: relative;
    display: inline-block;
}

.nav-dropdown-trigger {
    background: none;
    border: none;
    font-family: inherit;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    transition: color 0.2s;
    padding: 0;
}

.nav-dropdown:hover .nav-dropdown-trigger {
    color: var(--text-primary);
}

.mega-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 1.5rem;
    width: 340px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 100;
}

.nav-dropdown:hover .mega-menu {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(24px);
}

.mega-menu::before {
    content: '';
    position: absolute;
    top: -24px;
    left: 0;
    width: 100%;
    height: 24px;
    /* Invisible hover bridge so cursor doesn't un-hover */
}

.mega-menu-grid {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.mega-item {
    display: flex;
    flex-direction: column;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: background 0.2s;
}

.mega-item:hover {
    background: var(--bg-main);
}

.mega-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
    margin-bottom: 0.15rem;
    display: block;
}

.mega-desc {
    color: var(--text-secondary);
    font-size: 0.8rem;
    line-height: 1.4;
    display: block;
}

/* Hero Section */
.hero {
    padding-top: 12rem;
    padding-bottom: 6rem;
    text-align: center;
}

.hero-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-pill);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    margin-bottom: 2rem;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background-color: #10B981;
    /* Success green */
    border-radius: 50%;
}

.hero-actions {
    margin-bottom: 2rem;
}

.hero-social-proof {
    font-size: 0.875rem;
    color: #6B7280;
}

/* Logos */
.logos {
    padding: 3rem 0;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
    background: transparent;
}

.logo-track {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4rem;
    flex-wrap: wrap;
    opacity: 0.6;
}

.logo-placeholder {
    font-weight: 800;
    font-size: 1.5rem;
    color: #9CA3AF;
    letter-spacing: -0.03em;
}

/* Bento Features */
.features {
    padding: 8rem 0;
}

.section-header {
    max-width: 700px;
    margin: 0 auto 4rem auto;
}

.section-desc {
    margin: 0 auto;
}

.bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: minmax(300px, auto);
    gap: 1.5rem;
}

.bento-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(0, 0, 0, 0.02);
    overflow: hidden;
    position: relative;
    transition: transform 0.3s ease;
}

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

.card-large {
    grid-column: span 2;
    grid-row: span 2;
}

.card-small {
    grid-column: span 1;
    grid-row: span 1;
}

.border-green {
    border: 2px solid var(--accent-lime);
}

.card-wide {
    grid-column: span 3;
    grid-row: span 1;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
}

.card-medium {
    grid-column: span 2;
    grid-row: span 1;
}

.card-content {
    position: relative;
    z-index: 2;
    margin-bottom: 2rem;
}

.card-content p {
    font-size: 1rem;
}

/* Mock Visuals for Bento Cards */
.card-visual {
    flex-grow: 1;
    background: var(--bg-main);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.visual-speed {
    background: linear-gradient(135deg, #F9FAFB, #F3F4F6);
}

.mock-notification {
    background: white;
    padding: 1rem;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 1rem;
    animation: slideUp 3s infinite alternate ease-in-out;
}

@keyframes slideUp {
    0% {
        transform: translateY(10px);
        opacity: 0.8;
    }

    100% {
        transform: translateY(-10px);
        opacity: 1;
    }
}

.notif-icon.green {
    width: 32px;
    height: 32px;
    background: var(--accent-lime);
    border-radius: 50%;
}

.notif-text {
    display: flex;
    flex-direction: column;
    font-size: 0.8rem;
}

.notif-text strong {
    color: var(--text-primary);
}

.visual-multi {
    flex-direction: column;
    gap: 0.5rem;
}

.mock-pill {
    background: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.status-badge {
    background: #FEE2E2;
    color: #991B1B;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-pill);
    font-size: 0.875rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dot-red {
    width: 8px;
    height: 8px;
    background: #EF4444;
    border-radius: 50%;
}

/* Philosophy Split */
.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.lead {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    line-height: 1.4;
}

.clean-list {
    list-style: none;
    margin-top: 2rem;
}

.clean-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-weight: 500;
    color: var(--text-primary);
}

.glass-card {
    background: white;
    padding: 3rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
}

.mock-chart {
    display: flex;
    align-items: flex-end;
    gap: 1rem;
    height: 150px;
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--border-light);
    padding-bottom: 1rem;
}

.bar {
    flex: 1;
    min-width: 20px;
    background: var(--border-light);
    border-top-left-radius: 4px;
    border-top-right-radius: 4px;
}

.bar-1 {
    height: 40px;
}

.bar-2 {
    height: 60px;
}

.bar-3 {
    height: 50px;
}

.bar-4 {
    height: 90px;
}

.bar-5.active {
    height: 130px;
    background: var(--accent-lime);
}

.stat-row {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
}

.green-text {
    color: #059669;
    font-size: 1rem;
    margin-top: 0.5rem;
}

/* Video Section */
.video-showcase {
    padding: 0 0 6rem 0;
    /* No top padding as it sits tight below Hero */
}

.video-container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-card);
    padding: 1rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    /* 16:9 Aspect Ratio */
    height: 0;
    overflow: hidden;
    border-radius: var(--radius-md);
    background: var(--bg-main);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* Pricing Section */
.pricing {
    background: white;
    padding: 8rem 0;
}

.pricing-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    max-width: 500px;
    margin: 0 auto;
}

.card-header {
    padding: 3rem 3rem 2rem 3rem;
    text-align: center;
    background: var(--bg-main);
    border-bottom: 1px solid var(--border-light);
}

.card-header.border-green {
    border-top: 4px solid var(--accent-lime);
}

.price-tag {
    display: flex;
    justify-content: center;
    align-items: baseline;
    margin: 1.5rem 0 0.5rem 0;
}

.currency {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-secondary);
}

.amount {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1;
    color: var(--text-primary);
    font-family: var(--font-heading);
    letter-spacing: -0.05em;
}

.period {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-left: 0.25rem;
}

.setup-fee {
    font-size: 0.875rem;
    color: #059669;
    /* Success Green */
    font-weight: 600;
    margin: 0;
}

.feature-list {
    list-style: none;
    padding: 3rem;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    font-weight: 500;
}

.feature-list li:last-child {
    margin-bottom: 0;
}

.pricing-cta {
    padding: 0 3rem 3rem 3rem;
    text-align: center;
}

.pricing-note {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 1.5rem;
}

/* FAQs Section */
.faqs {
    padding: 8rem 0;
    background: var(--bg-main);
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    background: white;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.faq-item summary {
    padding: 1.5rem 2rem;
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--text-primary);
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-heading);
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--accent-lime-hover);
    transition: transform 0.3s ease;
}

.faq-item[open] summary::after {
    content: '−';
    /* Minus sign */
    transform: rotate(180deg);
}

.faq-content {
    padding: 0 2rem 2rem 2rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Footer & Existing Responsive */
.site-footer {
    padding: 4rem 0 2rem 0;
    background: white;
    border-top: 1px solid var(--border-light);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand .brand-name {
    display: block;
    margin: 1rem 0 0.5rem 0;
}

.footer-desc {
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-title {
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.2s;
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-light);
    font-size: 0.875rem;
    color: #9CA3AF;
}

.legal-links {
    display: flex;
    gap: 2rem;
}

.legal-links a {
    color: #9CA3AF;
    text-decoration: none;
}

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

/* Responsive */
@media (max-width: 1024px) {
    .bento-grid {
        grid-template-columns: 1fr;
    }

    .card-large,
    .card-small,
    .card-medium,
    .card-wide {
        grid-column: span 1;
        grid-row: auto;
    }

    .card-wide {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 768px) {

    .nav-links,
    .nav-actions {
        display: none;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero {
        padding-top: 10rem;
    }
}