:root {
    /* Color Palette - Nature Inspired Premium */
    --primary: hsl(158, 64%, 50%);
    --primary-hover: hsl(158, 64%, 40%);
    --secondary: hsl(210, 20%, 98%);
    --accent: hsl(262, 80%, 50%);
    --text-main: hsl(220, 30%, 10%);
    --text-sub: hsl(220, 10%, 40%);
    --bg-main: #ffffff;
    --bg-soft: #f8fafc;
    --glass: rgba(255, 255, 255, 0.75);

    /* Shadows & Radii */
    --shadow-sm: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-premium: 0 20px 40px -10px rgba(0, 0, 0, 0.1);
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Layout */
    --max-width: 1100px;
    --header-height: 80px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Outfit', sans-serif;
    color: var(--text-main);
    background-color: var(--bg-main);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.max-width {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Utilities */
.text-gradient {
    background: linear-gradient(90deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    gap: 8px;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: #000;
    color: #fff;
}

.btn-primary:hover {
    background-color: #222;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.2);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid #e2e8f0;
    color: var(--text-main);
}

.btn-outline:hover {
    border-color: var(--text-main);
    background-color: #f8fafc;
}

.btn-xl {
    padding: 16px 32px;
    font-size: 1.125rem;
    border-radius: 16px;
}

.btn-dark {
    background-color: #000;
    color: #fff;
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(160, 144, 252, 0.1);
    color: var(--accent);
    text-transform: uppercase;
    font-weight: 700;
    font-size: 0.75rem;
    letter-spacing: 1px;
    border-radius: 8px;
    margin-bottom: 16px;
}

/* Announcement Bar */
.announcement-bar {
    background: #F3FFFC;
    border-bottom: 1px solid rgba(158, 252, 212, 0.3);
    padding: 10px 0;
    text-align: center;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary-hover);
    position: relative;
    z-index: 1001;
}

.announcement-bar strong {
    font-weight: 700;
}

/* Header */
.header {
    height: var(--header-height);
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--glass);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-main);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    border: 1px solid #f1f5f9;
    margin-bottom: 24px;
}

.badge-icon {
    font-size: 1rem;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-main);
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -1px;
}

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

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

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

.nav-cta {
    display: flex;
    gap: 12px;
}

/* Hero Section */
.hero {
    padding-top: 40px;
    padding-bottom: 80px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, #F3FFFC 0%, #FFFFFF 100%);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 4.5rem;
    line-height: 1.1;
    font-weight: 800;
    letter-spacing: -3px;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-sub);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 80px;
}

.play-icon {
    width: 32px;
    height: 32px;
    background: #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 0.75rem;
    margin-right: 4px;
}

/* Hero Interaction */
.hero-visual {
    margin-top: 64px;
    perspective: 1000px;
}

.browser-mockup {
    background: #fff;
    border-radius: 12px;
    padding: 12px 0 0 0;
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.hero-carousel {
    position: relative;
    aspect-ratio: 16/9;
    width: 100%;
    background: #f8fafc;
}

.carousel-track {
    width: 100%;
    height: 100%;
    position: relative;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.carousel-slide.active {
    opacity: 1;
}

.carousel-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.2);
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background: #0D51FF;
    transform: scale(1.3);
}

.hero-bg-accent {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(158, 252, 212, 0.4) 0%, rgba(158, 252, 212, 0) 70%);
    top: -100px;
    right: -100px;
    z-index: 1;
}

/* Social Proof */
.social-proof {
    padding: 60px 0;
    border-top: 1px solid #f1f5f9;
}

.trust-text {
    text-align: center;
    font-weight: 600;
    color: var(--text-sub);
    margin-bottom: 32px;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.logo-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 60px;
    flex-wrap: wrap;
    opacity: 0.5;
}

.logo-placeholder {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-main);
}

/* Features */
.features {
    padding: 100px 0;
    background: #f8fafc;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
}

.section-title {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -2px;
    line-height: 1.1;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.feature-card {
    background: #fff;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-premium);
}

.card-header {
    height: 240px;
    position: relative;
    overflow: hidden;
}

.feature-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-card:hover .feature-img {
    transform: scale(1.1);
}

.h-blue {
    background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%);
}

.h-purple {
    background: linear-gradient(135deg, #f3e8ff 0%, #e9d5ff 100%);
}

.h-green {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
}

.h-peach {
    background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
}

.h-vibrant {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}

.h-gray {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.card-body {
    padding: 40px;
}

.card-body h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.card-body p {
    color: var(--text-sub);
    margin-bottom: 24px;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    font-weight: 500;
    font-size: 0.95rem;
}

.feature-list li::before {
    content: '✓';
    color: var(--primary);
    font-weight: 900;
}

/* Philosophy */
.philosophy {
    padding: 0;
    background-color: #151922; /* Matching Design.md's specific dark theme */
    background-image: 
        radial-gradient(at 100% 0%, #1a2233 0, transparent 40%), 
        radial-gradient(at 0% 100%, #1a2233 0, transparent 40%);
    color: #fff;
    position: relative;
    text-align: center;
    overflow: hidden;
}

.tear-top {
    width: 100%;
    display: block;
    margin-bottom: 80px;
    position: relative;
    z-index: 2;
}

.tear-bottom {
    width: 100%;
    height: 12vw; /* Fixed relative height to ensure we only see the top of the asset */
    object-fit: cover;
    object-position: top; /* Keeps the torn edge and crops the bottom shadow */
    margin-top: -8%; /* Overlap with the dark section content */
    display: block;
    position: relative;
    z-index: 2;
}

.philosophy-container {
    max-width: 1100px;
    margin: 0 auto;
    padding-bottom: 80px; /* Space for the overlap */
    position: relative;
    z-index: 1;
}

/* Ruled Paper Effect */
.paper-effect {
    background: #fff;
    background-image: linear-gradient(#e2e8f0 1px, transparent 1px);
    background-size: 100% 2.8rem;
    position: relative;
    max-width: 850px;
    margin: 0 auto;
    padding: 3rem 4rem 3rem 6rem;
    border-radius: 4px;
    text-align: left;
    color: #334155;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.paper-effect::before {
    content: '';
    position: absolute;
    top: 0;
    left: 4.5rem;
    height: 100%;
    width: 2px;
    background: #fecaca;
}

.paper-holes {
    position: absolute;
    left: 1.5rem;
    top: 2rem;
    bottom: 2rem;
    width: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.paper-holes::after {
    content: '';
    height: 100%;
    width: 100%;
    background-image: radial-gradient(circle, #000 6px, transparent 7px);
    background-size: 20px 4rem;
}

.paper-title {
    font-family: 'Outfit', sans-serif;
    font-size: 2.5rem;
    font-weight: 800;
    color: #1e293b;
    margin-bottom: 2rem;
    line-height: 1.2;
}

.philosophy-desc p {
    font-family: 'Inter', sans-serif;
    font-size: 1.2rem;
    line-height: 2.8rem;
    margin-bottom: 0;
}

.highlight-text-box {
    margin-top: 2.8rem;
    padding: 1rem 1.5rem;
    background: rgba(13, 81, 255, 0.05);
    border-left: 4px solid #0D51FF;
    font-weight: 500;
    color: #475569;
}

.phil-badge {
    background: rgba(160, 144, 252, 0.2);
    color: #C8BFFB;
    text-transform: uppercase;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 1px;
    padding: 10px 24px;
    border-radius: 8px;
    display: inline-block;
}

.phil-item h4 {
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
}

.philosophy-desc p {
    font-family: 'Inter', sans-serif;
    font-size: 1.2rem;
    line-height: 2.8rem;
    margin-bottom: 20px;
}

.highlight-text {
    font-weight: 600;
    color: var(--text-main);
    padding: 20px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 12px;
    border: 1px solid rgba(0, 0, 0, 0.03);
}

.philosophy-grid {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.phil-item {
    flex: 1;
    background: rgba(255, 255, 255, 0.6);
    padding: 24px;
    border-radius: 12px;
    border: 1px solid rgba(0, 0, 0, 0.03);
    backdrop-filter: blur(8px);
}

.phil-progress {
    height: 4px;
    background: #334155;
    margin-bottom: 16px;
    border-radius: 2px;
    position: relative;
    overflow: hidden;
}

.phil-progress::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 30%;
    background: var(--primary);
}

.phil-item h4 {
    font-size: 1rem;
    font-weight: 600;
}

/* SEO content block */
.seo-rich-text {
    padding: 80px 0;
    background: #fff;
}

.seo-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.seo-grid h3 {
    margin-bottom: 16px;
}

.seo-grid p {
    color: var(--text-sub);
}

/* SEO Support Section */
.seo-support-section {
    padding: 100px 0;
    background: #fff;
    border-top: 1px solid #f1f5f9;
}

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

.article-box {
    padding: 32px;
    background: var(--bg-soft);
    border-radius: 16px;
    border: 1px solid rgba(0, 0, 0, 0.03);
}

.article-box h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-main);
}

.article-box p {
    color: var(--text-sub);
    font-size: 0.9375rem;
}

.article-box strong {
    color: var(--primary-hover);
}

.section-subtitle {
    margin-top: 16px;
    color: var(--text-sub);
    font-size: 1.125rem;
}

/* CTA */
.cta-section {
    padding: 100px 0;
}

.cta-card {
    background: #F3FFFC;
    padding: 80px;
    border-radius: var(--radius-xl);
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.cta-card h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 16px;
}

.cta-card p {
    font-size: 1.25rem;
    color: var(--text-sub);
    margin-bottom: 32px;
}

/* Footer */
.footer {
    padding: 100px 0 40px;
    border-top: 1px solid #f1f5f9;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-brand p {
    margin-top: 16px;
    color: var(--text-sub);
    max-width: 250px;
}

.footer-links h4 {
    margin-bottom: 24px;
    font-weight: 700;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    text-decoration: none;
    color: var(--text-sub);
    transition: color 0.3s;
}

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

.footer-tagline {
    margin-top: 16px;
    color: var(--text-sub);
    font-size: 0.95rem;
    line-height: 1.5;
}

.footer-socials {
    display: flex;
    gap: 16px;
    margin-top: 24px;
}

.social-link {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #f1f5f9;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s ease;
    filter: grayscale(1);
    opacity: 0.7;
}

.social-link:hover {
    background: var(--primary);
    filter: grayscale(0);
    opacity: 1;
    transform: translateY(-3px);
}

.footer-bottom-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 40px;
    border-top: 1px solid #f1f5f9;
}

.footer-badges {
    display: flex;
    gap: 20px;
}

.f-badge {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-sub);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Animations */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

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

    .hero-title {
        font-size: 3.5rem;
    }

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

@media (max-width: 768px) {
    .nav-links,
    .nav-cta {
        display: none;
    }

    .hero-title {
        font-size: 2.5rem;
        letter-spacing: -1.5px;
    }

    .big-statement {
        font-size: 3rem;
    }

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

    .cta-card {
        padding: 40px 20px;
    }

    .philosophy-grid {
        flex-direction: column;
    }
}

/* FAQ Section */
.faq {
    padding: 100px 0;
    background: #fff;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid #f1f5f9;
}

.faq-question {
    width: 100%;
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-main);
    transition: color 0.3s;
}

.faq-question:hover {
    color: var(--primary);
}

.faq-icon {
    font-size: 1.5rem;
    font-weight: 400;
    transition: transform 0.3s ease;
    color: var(--text-sub);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
}

.faq-answer p {
    padding-bottom: 24px;
    color: var(--text-sub);
    line-height: 1.8;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    opacity: 1;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
    color: var(--primary);
}