/* Lean Sales Website - Linear-inspired Dark Theme */

:root {
    --bg-primary: #0A0A0B;
    --bg-secondary: #111113;
    --bg-tertiary: #18181B;
    --bg-card: #1a1a1d;
    --border: #27272A;
    --border-light: #3f3f46;
    --text-primary: #FAFAFA;
    --text-secondary: #A1A1AA;
    --text-tertiary: #71717A;
    --accent: #6366F1;
    --accent-light: #818CF8;
    --accent-glow: rgba(99, 102, 241, 0.15);
    --success: #22C55E;
    --people-accent: #EC4899;
    --people-glow: rgba(236, 72, 153, 0.15);
    --ai-accent: #06B6D4;
    --ai-glow: rgba(6, 182, 212, 0.15);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 0;
    background: rgba(10, 10, 11, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

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

.logo {
    font-weight: 600;
    font-size: 18px;
    letter-spacing: -0.02em;
    text-decoration: none;
    color: var(--text-primary);
}

.logo span {
    color: var(--text-tertiary);
    font-weight: 400;
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background: var(--border);
    border-color: var(--border-light);
}

.btn-large {
    padding: 14px 28px;
    font-size: 16px;
}

/* Hero */
.hero {
    padding: 180px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 900px;
    height: 600px;
    background: radial-gradient(ellipse at center, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--success);
    border-radius: 50%;
}

h1 {
    font-size: 60px;
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 24px;
}

h1 .gradient {
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    max-width: 650px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
}

/* Stats */
.stats {
    display: flex;
    justify-content: center;
    gap: 64px;
    padding: 64px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.stat {
    text-align: center;
}

.stat-value {
    font-size: 44px;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.stat-label {
    font-size: 14px;
    color: var(--text-tertiary);
    margin-top: 4px;
}

/* Sections */
.section {
    padding: 120px 0;
}

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

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 16px;
}

h2 {
    font-size: 40px;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 650px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Problems Grid */
.problems-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 64px;
}

.problem-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
}

.problem-icon {
    font-size: 32px;
    margin-bottom: 16px;
}

.problem-card h3 {
    color: var(--text-primary);
}

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

/* Quote Block */
.quote-block {
    text-align: center;
    padding: 48px;
    background: var(--bg-tertiary);
    border-radius: 16px;
    border: 1px solid var(--border);
}

.quote-block blockquote {
    font-size: 24px;
    font-weight: 500;
    font-style: italic;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.quote-block cite {
    color: var(--text-tertiary);
    font-size: 14px;
}

/* Principles Grid */
.principles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.principle-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    transition: all 0.3s;
}

.principle-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.principle-number {
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 16px;
}

.principle-card h3 {
    color: var(--text-primary);
    margin-bottom: 12px;
}

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

/* Two Paths */
.paths-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.path-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 40px;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    transition: all 0.3s;
}

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

.path-accent {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.path-people .path-accent {
    background: linear-gradient(90deg, var(--people-accent) 0%, transparent 100%);
}

.path-people:hover {
    border-color: var(--people-accent);
    background: linear-gradient(180deg, var(--people-glow) 0%, var(--bg-card) 30%);
}

.path-ai .path-accent {
    background: linear-gradient(90deg, var(--ai-accent) 0%, transparent 100%);
}

.path-ai:hover {
    border-color: var(--ai-accent);
    background: linear-gradient(180deg, var(--ai-glow) 0%, var(--bg-card) 30%);
}

.path-card h3 {
    color: var(--text-primary);
    font-size: 24px;
    margin-bottom: 8px;
}

.path-tagline {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 24px;
    line-height: 1.6;
}

.path-features {
    list-style: none;
    margin-bottom: 24px;
}

.path-features li {
    color: var(--text-secondary);
    font-size: 14px;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 8px;
}

.path-features li::before {
    content: '→';
    color: var(--text-tertiary);
}

.path-features li:last-child {
    border-bottom: none;
}

.path-cta {
    color: var(--accent);
    font-weight: 500;
    font-size: 14px;
}

.path-people .path-cta {
    color: var(--people-accent);
}

.path-ai .path-cta {
    color: var(--ai-accent);
}

/* Qualification Grid */
.qual-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.qual-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px;
    text-align: center;
}

.qual-letter {
    font-size: 40px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 4px;
}

.qual-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

.qual-question {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.qual-details {
    font-size: 13px;
    color: var(--text-tertiary);
    line-height: 1.6;
}

/* Journey Steps (Pricing) */
.journey-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.journey-step {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px;
    position: relative;
}

.journey-step.featured {
    border-color: var(--accent);
    background: linear-gradient(180deg, var(--accent-glow) 0%, var(--bg-card) 40%);
}

.featured-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: var(--text-primary);
    padding: 4px 14px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
}

.step-icon {
    font-size: 28px;
    margin-bottom: 12px;
}

.step-phase {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 8px;
}

.journey-step h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.step-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 12px;
}

.journey-step > p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
}

.step-features {
    list-style: none;
    margin-bottom: 16px;
}

.step-features li {
    font-size: 13px;
    color: var(--text-secondary);
    padding: 6px 0;
    display: flex;
    align-items: center;
    gap: 6px;
}

.step-features li::before {
    content: '✓';
    color: var(--success);
    font-size: 12px;
}

.step-outcome {
    font-size: 13px;
    color: var(--text-tertiary);
    font-style: italic;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

/* Origin Block */
.origin-block {
    display: flex;
    gap: 48px;
    align-items: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 56px;
}

.origin-year {
    font-size: 100px;
    font-weight: 700;
    color: var(--bg-tertiary);
    letter-spacing: -0.04em;
    line-height: 1;
    flex-shrink: 0;
}

.origin-content h3 {
    font-size: 28px;
    margin-bottom: 16px;
}

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

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

/* CTA Section */
.cta-section {
    padding: 120px 0;
    text-align: center;
    position: relative;
    background: var(--bg-secondary);
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 700px;
    height: 500px;
    background: radial-gradient(ellipse at center, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
}

.cta-section h2 {
    margin-bottom: 16px;
    position: relative;
}

.cta-section p {
    color: var(--text-secondary);
    font-size: 18px;
    margin-bottom: 32px;
    position: relative;
}

.cta-buttons {
    position: relative;
    margin-bottom: 16px;
}

.cta-subtext {
    color: var(--text-tertiary);
    font-size: 14px;
    position: relative;
}

/* Footer */
footer {
    border-top: 1px solid var(--border);
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 48px 0;
}

.footer-brand p {
    color: var(--text-tertiary);
    font-size: 14px;
    margin-top: 8px;
}

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

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

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

.footer-contact a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding: 24px 0;
    text-align: center;
    color: var(--text-tertiary);
    font-size: 13px;
}

/* Responsive */
@media (max-width: 1024px) {
    .principles-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .journey-steps {
        grid-template-columns: repeat(2, 1fr);
    }

    .qual-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 40px;
    }

    h2 {
        font-size: 32px;
    }

    .nav-links {
        display: none;
    }

    .stats {
        flex-direction: column;
        gap: 32px;
    }

    .problems-grid,
    .principles-grid,
    .paths-grid,
    .journey-steps,
    .qual-grid {
        grid-template-columns: 1fr;
    }

    .origin-block {
        flex-direction: column;
        text-align: center;
    }

    .footer-container {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }
}