*, *::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: #a1a1a1;
    --text-tertiary: #666666;

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

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

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;

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

html {
    scroll-behavior: smooth;
}

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;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1000px;
    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(32px, 5vw, 48px);
    letter-spacing: -0.03em;
}

h2 {
    font-size: clamp(26px, 4vw, 36px);
}

h3 {
    font-size: 20px;
}

h4 {
    font-size: 17px;
    font-weight: 500;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-secondary);
}

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

.logo {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.01em;
}

.nav-cta {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    padding: 10px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

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

/* Hero */
.hero {
    padding: 160px 0 100px;
    text-align: center;
}

.hero-photo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 32px;
    border: 2px solid var(--border-primary);
}

.hero h1 {
    max-width: 700px;
    margin: 0 auto 24px;
}

.hero-sub {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 32px;
    line-height: 1.7;
}

.hero-meta {
    display: flex;
    gap: 24px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.hero-meta span {
    font-size: 14px;
    color: var(--text-tertiary);
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: 100px;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    padding: 14px 28px;
    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: 18px 40px;
    font-size: 16px;
}

/* Sections */
.section {
    padding: 100px 0;
}

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

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

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

.section-label {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 16px;
}

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

.about-text p {
    font-size: 17px;
    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 var(--border-primary);
    border-radius: var(--radius-lg);
}

.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;
}

.method-item {
    margin-bottom: 24px;
}

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

.method-item p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.method-note {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    padding-top: 16px;
    border-top: 1px solid var(--border-primary);
    font-style: italic;
}

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

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

.audience-content > p {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
}

.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;
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
}

.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);
}

/* CTA */
.cta {
    text-align: center;
    padding: 120px 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
}

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

.cta-steps {
    text-align: left;
    margin-bottom: 48px;
}

.cta-step {
    display: flex;
    gap: 20px;
    margin-bottom: 32px;
    padding: 24px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
}

.cta-step:last-child {
    margin-bottom: 0;
}

.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);
}

.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;
}

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


/* Footer */
footer {
    padding: 40px 0;
    border-top: 1px solid var(--border-primary);
    text-align: center;
}

footer p {
    font-size: 14px;
    color: var(--text-tertiary);
}

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

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

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

@media (max-width: 600px) {
    .section {
        padding: 80px 0;
    }

    .hero {
        padding: 140px 0 80px;
    }

    .hero-meta {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }

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

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

    .column-card {
        padding: 24px;
    }

    .transform-column {
        padding: 24px;
    }

    .alternative {
        padding: 24px;
    }

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

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