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

:root {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #111111;
    --bg-card: #141414;
    --bg-card-hover: #1a1a1a;

    --text-primary: #ffffff;
    --text-secondary: #b0aba5;
    --text-tertiary: #666666;

    --border-primary: #222222;
    --border-secondary: #1a1a1a;

    --accent: #ffffff;
    --accent-muted: rgba(255, 255, 255, 0.1);

    --radius-sm: 8px;
    --radius-md: 10px;
    --radius-lg: 16px;

    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);

    --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;

    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-7: 48px;
    --space-8: 64px;
    --space-9: 96px;
    --space-10: 128px;
}

html {
    scroll-behavior: smooth;
    background: #000000;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 16px;
    font-feature-settings: 'cv01', 'cv02';
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

h1 {
    font-size: clamp(36px, 5vw, 52px);
    letter-spacing: -0.03em;
    line-height: 1.1;
}

h2 {
    font-size: clamp(28px, 4vw, 38px);
    line-height: 1.15;
}

h3 {
    font-size: 19px;
    font-weight: 500;
}

h4 {
    font-size: 16px;
    font-weight: 600;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: calc(env(safe-area-inset-top) + 16px) 0 16px;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

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

.logo {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.01em;
}

.nav-cta {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    padding: 8px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: 6px;
    transition: var(--transition);
}

.nav-link {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition);
    white-space: nowrap;
}

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

.nav-cta:hover {
    background: var(--bg-card-hover);
    border-color: var(--text-tertiary);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.lang-toggle {
    display: flex;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: 6px;
    overflow: hidden;
}

.lang-btn {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 500;
    color: var(--text-tertiary);
    background: transparent;
    border: none;
    padding: 6px 12px;
    cursor: pointer;
    transition: color var(--transition), background var(--transition);
    line-height: 1;
}

.lang-btn:hover {
    color: var(--text-secondary);
}

.lang-btn.active {
    color: var(--text-primary);
    background: var(--accent-muted);
}

/* Hero */
.hero {
    padding: 160px 0 128px;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

#hero-canvas {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 60%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    background: transparent;
    opacity: 0;
    transition: opacity 0.5s ease;
}

#hero-canvas.ready {
    opacity: 1;
}

.hero-photo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 32px;
    border: 2px solid var(--border-primary);
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.03), 0 0 60px rgba(255, 255, 255, 0.04);
}

.hero h1 {
    max-width: 700px;
    margin-bottom: 24px;
}

.hero-sub {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 640px;
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-meta {
    display: flex;
    gap: 0;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.hero-meta span {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-tertiary);
}

.hero-meta-sep {
    margin: 0 12px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(255, 255, 255, 0.15);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-primary);
}

.btn-ghost:hover {
    color: var(--text-primary);
    border-color: var(--text-tertiary);
}

.btn-large {
    padding: 16px 40px;
    font-size: 16px;
}

/* Sections */
.section {
    padding: var(--space-10) 0;
    position: relative;
    z-index: 1;
}

.section-dark {
    background: var(--bg-secondary);
}

.section-header {
    margin-bottom: 48px;
}

.section-header h2 {
    margin-bottom: 16px;
}

.section-label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.18em;
    margin-bottom: 16px;
}

.section-label::before {
    content: "// ";
}

/* Section canvases — shared base */
#about-canvas,
#cta-canvas {
    position: absolute;
    top: 0;
    bottom: 0;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    background: transparent;
    opacity: 0;
    transition: opacity 0.5s ease;
}

#about-canvas.ready,
#cta-canvas.ready {
    opacity: 1;
}

/* About canvas — right-aligned like hero */
#about-canvas {
    right: 0;
    width: 55%;
}

/* CTA canvas — centered behind content */
#cta-canvas {
    left: 50%;
    transform: translateX(-50%);
    width: 70%;
}

.section-about {
    overflow: hidden;
}

/* About Text */
.about-text {
    max-width: 800px;
}

.about-text p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.about-text p:last-child {
    margin-bottom: 0;
}

/* Two Column Layout */
.two-column {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 48px;
}

.column-card {
    padding: 32px;
    background: var(--bg-tertiary);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    transition: transform var(--transition), border-color var(--transition);
}

.column-card:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.14);
}

.column-card h3 {
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-primary);
}

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

.format-list li {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
    padding-left: 20px;
    position: relative;
}

.format-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    background: var(--text-tertiary);
    border-radius: 50%;
}

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

.format-list li strong {
    color: var(--text-primary);
}

.method-intro {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.7;
}


/* Audience Content */
.audience-content {
    max-width: 800px;
}

.audience-intro {
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.audience-content > p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
}

.audience-split {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.audience-track {
    padding: 24px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
}

.audience-track h3 {
    margin-bottom: 10px;
    color: var(--text-primary);
}

.audience-track-sub {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.audience-track .audience-list {
    margin-bottom: 0;
}

.audience-content h3 {
    margin-bottom: 20px;
    color: var(--text-primary);
}

.audience-list, .not-for-list {
    list-style: none;
    margin-bottom: 40px;
}

.audience-list li, .not-for-list li {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 12px;
    padding-left: 24px;
    position: relative;
}

.audience-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    background: var(--text-tertiary);
    border-radius: 50%;
}

.not-for-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 2px;
    background: var(--text-tertiary);
}

.audience-list li strong, .not-for-list li strong {
    color: var(--text-primary);
}

/* Transformation */
.transformation {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 48px;
}

.transform-column {
    padding: 32px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
}

.transform-column h3 {
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-primary);
}

.transform-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.7;
}

.transform-column > p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.7;
}

.transform-column ul {
    list-style: none;
}

.transform-column ul li {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 12px;
    padding-left: 20px;
    position: relative;
}

.transform-column ul li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    background: var(--text-tertiary);
    border-radius: 50%;
}

.outcomes-list li strong {
    color: var(--text-primary);
}

/* Alternatives */
.alternatives {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.alternative {
    padding: 32px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: var(--radius-lg);
    transition: background var(--transition), transform var(--transition), border-color var(--transition);
}

.alternative:hover {
    background: rgba(255, 255, 255, 0.04);
    transform: translateY(-1px);
    border-color: rgba(255, 255, 255, 0.08);
}

.alternative h4 {
    color: var(--text-tertiary);
    margin-bottom: 16px;
}

.alternative p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 12px;
}

.alternative p:last-child {
    margin-bottom: 0;
}

.alternative .highlight {
    color: var(--text-secondary);
    padding-top: 12px;
    border-top: 1px solid var(--border-primary);
}

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

/* Testimonials */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.testimonial-card {
    padding: 32px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: background var(--transition), transform var(--transition), border-color var(--transition);
}

.testimonial-card:hover {
    background: rgba(255, 255, 255, 0.04);
    transform: translateY(-1px);
    border-color: rgba(255, 255, 255, 0.08);
}

.testimonial-quote {
    margin-bottom: 24px;
}

.testimonial-quote p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-secondary);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 16px;
    border-top: 1px solid var(--border-primary);
    text-decoration: none;
    transition: opacity var(--transition);
}

.testimonial-author:hover {
    opacity: 0.8;
}

.testimonial-photo {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.testimonial-author-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.testimonial-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.testimonial-role {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-tertiary);
}

/* CTA */
.cta {
    text-align: center;
    padding: var(--space-10) 0;
    background: var(--bg-primary);
    z-index: 1;
    overflow: hidden;
}

.cta-content {
    max-width: 1000px;
    margin: 0 auto;
}

.cta h2 {
    margin-bottom: 48px;
}

.cta-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    text-align: left;
    margin-bottom: 48px;
}

.cta-step {
    display: flex;
    gap: 20px;
    padding: 24px;
    background: rgba(17, 17, 17, 0.65);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    transition: transform var(--transition), border-color var(--transition);
}

.cta-step:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.14);
}

.cta-step:last-child {
}

.step-number {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-muted);
    border-radius: 50%;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    font-family: var(--font-mono);
}

.cta-step h4 {
    color: var(--text-primary);
    margin-bottom: 8px;
}

.cta-step p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
    margin: 0 0 10px 0;
}

.cta-note {
    display: block;
    margin-top: 16px;
    font-size: 14px;
    color: var(--text-tertiary);
}


/* Footer */
footer {
    padding: var(--space-7) 0;
    border-top: 1px solid var(--border-primary);
    text-align: center;
    position: relative;
    z-index: 1;
}

footer p {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-tertiary);
}

.footer-meta {
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-tertiary);
    opacity: 0.7;
}

/* Responsive */
@media (max-width: 900px) {
    .two-column {
        grid-template-columns: 1fr;
    }

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

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

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

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

@media (max-width: 600px) {
    .section {
        padding: var(--space-9) 0;
    }

    .hero {
        padding: 140px 0 var(--space-9);
        text-align: center;
    }

    .nav-link {
        display: none;
    }

    .hero h1 {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-sub {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-meta {
        justify-content: center;
    }

    .hero-actions {
        justify-content: center;
        flex-direction: column;
        align-items: center;
    }

    #hero-canvas {
        width: 100%;
        left: 0;
        right: 0;
        opacity: 0.06;
    }

    #about-canvas {
        width: 100%;
        left: 0;
        right: 0;
        opacity: 0.2;
    }

    #cta-canvas {
        width: 100%;
        left: 0;
        transform: none;
        opacity: 0.2;
    }

    .hero-photo {
        margin-left: auto;
        margin-right: auto;
        display: block;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }

    .column-card {
        padding: 24px;
    }

    .transform-column {
        padding: 24px;
    }

    .alternative {
        padding: 24px;
    }

    .testimonial-card {
        padding: 24px;
    }

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

    .cta-step {
        flex-direction: column;
        gap: 16px;
    }

    .section-header {
        margin-bottom: 40px;
    }
}