:root {
    --color-bg-dark: #0d1117;
    --color-bg: #161b22;
    --color-bg-elevated: #1c2128;
    --color-bg-card: #21262d;
    --color-blue: #4a7dff;
    --color-blue-bright: #6b9bff;
    --color-blue-glow: rgba(74, 125, 255, 0.15);
    --color-pink: #e8b4bc;
    --color-text: #e6edf3;
    --color-text-secondary: #8b949e;
    --color-text-muted: #6e7681;
    --color-border: #30363d;
    --color-border-light: #3d444d;
    --font-body: 'Inter', -apple-system, sans-serif;
}

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

html {
    font-size: 17px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--color-bg-dark);
    color: var(--color-text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 2px 2px, var(--color-text-muted) 0.5px, transparent 0.5px);
    background-size: 24px 24px;
    opacity: 0.015;
    pointer-events: none;
    z-index: 0;
}

/* Header */
.site-header {
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    background: rgba(13, 17, 23, 0.95);
    backdrop-filter: blur(12px);
    z-index: 100;
}

.site-header::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    right: 0;
    height: 1px;
    background: repeating-linear-gradient(
        to right,
        var(--color-border-light) 0px,
        var(--color-border-light) 2px,
        transparent 2px,
        transparent 8px
    );
    opacity: 0.5;
}

.site-header nav {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-header .logo {
    font-weight: 500;
    font-size: 1.1rem;
    letter-spacing: -0.01em;
    color: var(--color-text);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    color: var(--color-blue);
}

.logo-incep {
    color: var(--color-text);
}

.logo-labs {
    color: var(--color-text-muted);
}

.site-header .nav-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-text-muted);
    background: var(--color-bg-elevated);
    padding: 0.35rem 0.7rem;
    border-radius: 4px;
    border: 1px solid var(--color-border);
    position: relative;
}

/* Hero */
.hero {
    background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-dark) 100%);
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--color-border);
}

.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(74, 125, 255, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero-inner {
    max-width: 800px;
    margin: 0 auto;
    padding: 5rem 2rem 4.5rem;
    position: relative;
    z-index: 1;
}

.hero-eyebrow {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-blue);
    font-weight: 600;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.hero-eyebrow i {
    width: 14px;
    height: 14px;
}

.hero h1 {
    font-size: clamp(2rem, 4.5vw, 2.75rem);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.03em;
    color: var(--color-text);
    margin-bottom: 1.25rem;
}

.hero h1 span {
    color: var(--color-blue-bright);
}

.hero-subtitle {
    font-size: 1.05rem;
    color: var(--color-text-secondary);
    max-width: 540px;
    line-height: 1.7;
}

.hero-meta {
    margin-top: 2.5rem;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.hero-meta span {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.hero-meta i {
    width: 14px;
    height: 14px;
}

/* Dot pattern decoration */
.dot-pattern {
    position: absolute;
    left: 2rem;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.3;
    pointer-events: none;
}

.dot-pattern circle {
    fill: var(--color-text-muted);
}

.dot-pattern.right {
    left: auto;
    right: 2rem;
    transform: translateY(-50%) scaleX(-1);
}

.dot-pattern.top-right {
    left: auto;
    right: 1rem;
    top: 1rem;
    transform: scale(0.6);
    transform-origin: top right;
}

.dot-pattern.bottom-left {
    left: 1rem;
    top: auto;
    bottom: 1rem;
    transform: scale(0.5) rotate(180deg);
    transform-origin: bottom left;
}

.dot-pattern.small {
    transform: scale(0.5);
}

/* Punchcard holes decorations */
.punchcard-holes {
    position: absolute;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.punchcard-holes.left {
    left: 8px;
    top: 50%;
    transform: translateY(-50%);
}

.punchcard-holes.right {
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
}

.punchcard-hole {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-bg-dark);
    border: 1px solid var(--color-border);
    opacity: 0.4;
}

.punchcard-edge {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 20px;
    pointer-events: none;
}

.punchcard-edge.left {
    left: 0;
    background: repeating-linear-gradient(
        to bottom,
        transparent 0px,
        transparent 8px,
        var(--color-border) 8px,
        var(--color-border) 9px
    );
    opacity: 0.3;
}

.punchcard-edge.right {
    right: 0;
    background: repeating-linear-gradient(
        to bottom,
        transparent 0px,
        transparent 8px,
        var(--color-border) 8px,
        var(--color-border) 9px
    );
    opacity: 0.3;
}

/* Article */
.article {
    max-width: 780px;
    margin: 0 auto;
    padding: 3.5rem 2rem;
    position: relative;
}

.article-decoration {
    position: fixed;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.4;
    pointer-events: none;
    z-index: 0;
}

@media (max-width: 1200px) {
    .article-decoration {
        opacity: 0.2;
    }
}

@media (max-width: 900px) {
    .article-decoration {
        display: none;
    }
}

.article p {
    margin-bottom: 1.4rem;
    color: var(--color-text-secondary);
}

.article p.lead {
    font-size: 1.1rem;
    line-height: 1.75;
    color: var(--color-text);
}

.article h2 {
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin: 3rem 0 1.1rem;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: 0.55rem;
}

.article h2 i {
    color: var(--color-blue);
    width: 22px;
    height: 22px;
}

.article h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin: 2rem 0 0.75rem;
    color: var(--color-text);
}

.article ul, .article ol {
    margin: 0 0 1.4rem 1.2rem;
    color: var(--color-text-secondary);
}

.article li {
    margin-bottom: 0.45rem;
}

.article strong {
    color: var(--color-text);
    font-weight: 600;
}

/* Callout boxes */
.callout {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-left: 3px solid var(--color-blue);
    padding: 1.35rem 1.5rem;
    margin: 1.75rem 0;
    border-radius: 0 8px 8px 0;
}

.callout.gradient-top {
    border-left: 1px solid var(--color-border);
    border-radius: 12px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-bg-card) 0%, var(--color-bg-elevated) 100%);
    border: 1px solid var(--color-border-light);
}

.callout.gradient-top::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-blue) 0%, var(--color-pink) 100%);
}

.callout p {
    margin-bottom: 0;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.callout-title {
    font-weight: 600;
    font-size: 0.7rem;
    color: var(--color-blue);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.callout-title i {
    width: 14px;
    height: 14px;
}

/* Highlight box */
.highlight-box {
    background: linear-gradient(135deg, var(--color-bg-card) 0%, var(--color-bg-elevated) 100%);
    border: 1px solid var(--color-border-light);
    padding: 1.75rem;
    border-radius: 12px;
    margin: 2rem 0;
    position: relative;
    overflow: hidden;
}

.highlight-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-blue) 0%, var(--color-pink) 100%);
}

.highlight-box::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 3px 3px, var(--color-text-muted) 1px, transparent 1px);
    background-size: 16px 16px;
    opacity: 0.025;
    pointer-events: none;
}

.highlight-box h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 0.65rem;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: 0.45rem;
}

.highlight-box h3 i {
    width: 18px;
    height: 18px;
    color: var(--color-blue);
}

.highlight-box p {
    color: var(--color-text-secondary);
    margin-bottom: 0;
    font-size: 0.92rem;
}

/* Two streams section */
.diagram-section {
    background: var(--color-bg);
    padding: 3.5rem 2rem;
    margin: 2.5rem 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    position: relative;
}

/* Punchcard perforated edges */
.diagram-section::before,
.diagram-section::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    height: 1px;
    background: repeating-linear-gradient(
        to right,
        var(--color-border-light) 0px,
        var(--color-border-light) 4px,
        transparent 4px,
        transparent 12px
    );
}

.diagram-section::before {
    top: 4px;
}

.diagram-section::after {
    bottom: 4px;
}

.diagram-container {
    max-width: 920px;
    margin: 0 auto;
}

.diagram-title {
    font-size: 1.2rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--color-text);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.diagram-title i {
    color: var(--color-blue);
    width: 22px;
    height: 22px;
}

.two-streams {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

@media (max-width: 700px) {
    .two-streams {
        grid-template-columns: 1fr;
    }
}

.stream-card {
    background: var(--color-bg-elevated);
    border-radius: 10px;
    padding: 1.5rem;
    border: 1px solid var(--color-border);
    transition: border-color 0.2s ease;
    position: relative;
    overflow: hidden;
}

.stream-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 3px 3px, var(--color-text-muted) 1px, transparent 1px);
    background-size: 12px 12px;
    opacity: 0.03;
    pointer-events: none;
}

/* Punchcard corner notch */
.stream-card::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 16px;
    height: 16px;
    background: var(--color-bg);
    clip-path: polygon(100% 0, 0 0, 100% 100%);
    border-bottom-left-radius: 4px;
}

.stream-card:hover {
    border-color: var(--color-border-light);
}

.stream-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.9rem;
}

.stream-icon i {
    width: 20px;
    height: 20px;
}

.stream-card.current .stream-icon {
    background: rgba(232, 180, 188, 0.15);
    color: var(--color-pink);
}

.stream-card.venture .stream-icon {
    background: var(--color-blue-glow);
    color: var(--color-blue);
}

.stream-card h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--color-text);
}

.stream-card .stream-timing {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.stream-card.current .stream-timing {
    color: var(--color-pink);
}

.stream-card.venture .stream-timing {
    color: var(--color-blue);
}

.stream-card p {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.9rem;
    line-height: 1.6;
}

.stream-card ul {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-left: 0;
    list-style: none;
}

.stream-card li {
    margin-bottom: 0.35rem;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.stream-card li::before {
    content: '';
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--color-blue);
    margin-top: 0.55rem;
    flex-shrink: 0;
}

/* Multiplier grid */
.multiplier-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.7rem;
    margin-top: 1.1rem;
}

@media (max-width: 600px) {
    .multiplier-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.multiplier-item {
    background: var(--color-bg-elevated);
    padding: 1rem 0.85rem;
    border-radius: 8px;
    text-align: center;
    border: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
}

.multiplier-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 4px 4px, var(--color-text-muted) 1px, transparent 1px),
        radial-gradient(circle at 4px 4px, var(--color-text-muted) 1px, transparent 1px);
    background-size: 8px 8px;
    background-position: 0 0, 4px 4px;
    opacity: 0.04;
    pointer-events: none;
}

.multiplier-value {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-blue-bright);
    margin-bottom: 0.1rem;
}

.multiplier-label {
    font-size: 0.65rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

/* Performance scale */
.performance-scale {
    display: flex;
    gap: 0.5rem;
    margin: 1.25rem 0 2rem;
    padding: 1rem;
    background: var(--color-bg-elevated);
    border-radius: 8px;
    border: 1px solid var(--color-border);
    position: relative;
}

.performance-scale::before {
    content: '';
    position: absolute;
    top: 4px;
    left: 8px;
    right: 8px;
    height: 1px;
    background: repeating-linear-gradient(
        to right,
        var(--color-border-light) 0px,
        var(--color-border-light) 3px,
        transparent 3px,
        transparent 8px
    );
    opacity: 0.6;
}

.performance-item {
    flex: 1;
    text-align: center;
    padding: 0.75rem 0.5rem;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.performance-item[data-level="1"] {
    background: rgba(239, 68, 68, 0.1);
}

.performance-item[data-level="2"] {
    background: rgba(251, 146, 60, 0.1);
}

.performance-item[data-level="3"] {
    background: rgba(148, 163, 184, 0.1);
}

.performance-item[data-level="4"] {
    background: rgba(74, 125, 255, 0.15);
}

.performance-item[data-level="5"] {
    background: linear-gradient(135deg, rgba(74, 125, 255, 0.2) 0%, rgba(232, 180, 188, 0.2) 100%);
}

.performance-multiplier {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.performance-item[data-level="1"] .performance-multiplier {
    color: #f87171;
}

.performance-item[data-level="2"] .performance-multiplier {
    color: #fb923c;
}

.performance-item[data-level="3"] .performance-multiplier {
    color: var(--color-text-secondary);
}

.performance-item[data-level="4"] .performance-multiplier {
    color: var(--color-blue);
}

.performance-item[data-level="5"] .performance-multiplier {
    color: var(--color-blue-bright);
}

.performance-label {
    font-size: 0.6rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 500;
}

@media (max-width: 500px) {
    .performance-scale {
        flex-wrap: wrap;
    }
    .performance-item {
        flex: 0 0 calc(33.333% - 0.35rem);
    }
}

/* Timeline */
.timeline {
    margin: 2rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.4rem;
    bottom: 0.4rem;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-blue), var(--color-pink));
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    padding-bottom: 1.5rem;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -1.5rem;
    top: 0.3rem;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-blue);
    border: 2px solid var(--color-bg-dark);
    box-shadow: 0 0 0 2px var(--color-blue);
}

.timeline-year {
    font-weight: 600;
    color: var(--color-blue-bright);
    font-size: 0.8rem;
    margin-bottom: 0.3rem;
}

.timeline-content {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Scenario card */
.scenario {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 1.5rem 1.5rem 1.5rem 2rem;
    margin: 1.75rem 0;
    position: relative;
    overflow: hidden;
}

/* Punchcard row of holes on left */
.scenario::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 24px;
    bottom: 24px;
    width: 5px;
    background: repeating-linear-gradient(
        to bottom,
        var(--color-bg-dark) 0px,
        var(--color-bg-dark) 5px,
        transparent 5px,
        transparent 14px
    );
    border-radius: 2px;
    opacity: 0.4;
}

.scenario-header {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    margin-bottom: 1.1rem;
    padding-bottom: 0.9rem;
    border-bottom: 1px solid var(--color-border);
}

.scenario-avatar {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--color-blue) 0%, var(--color-blue-bright) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    position: relative;
    flex-shrink: 0;
}

/* Fixed circle behind the avatar */
.scenario-avatar::before {
    content: '';
    position: absolute;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--color-blue-glow);
    border: 1px solid rgba(74, 125, 255, 0.2);
    z-index: -1;
}

.scenario-avatar i {
    width: 20px;
    height: 20px;
}

.scenario-name {
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.95rem;
}

.scenario-role {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.scenario-numbers {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.7rem;
    margin-top: 1.1rem;
}

@media (max-width: 500px) {
    .scenario-numbers {
        grid-template-columns: 1fr;
    }
}

.scenario-stat {
    text-align: center;
    padding: 0.9rem;
    background: var(--color-bg-card);
    border-radius: 8px;
    border: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
}

.scenario-stat::before {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    right: 3px;
    height: 1px;
    background: linear-gradient(90deg, var(--color-blue), var(--color-pink));
    opacity: 0.4;
    border-radius: 1px;
}

.scenario-stat-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-blue-bright);
}

.scenario-stat-label {
    font-size: 0.6rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.15rem;
    font-weight: 500;
}

/* Scenario tabs */
.scenario-tabs {
    display: none;
    gap: 0.5rem;
    margin-bottom: 1rem;
    padding: 0.5rem;
    background: var(--color-bg-elevated);
    border-radius: 10px;
    border: 1px solid var(--color-border);
}

.scenario-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

.scenario-tab:hover {
    background: var(--color-bg-card);
}

.scenario-tab.active {
    background: var(--color-bg-card);
    border-color: var(--color-blue);
}

.scenario-tab-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-blue-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-blue);
    transition: all 0.2s ease;
}

.scenario-tab.active .scenario-tab-icon {
    background: linear-gradient(135deg, var(--color-blue) 0%, var(--color-blue-bright) 100%);
    color: white;
}

.scenario-tab-icon i {
    width: 16px;
    height: 16px;
}

.scenario-tab-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text-muted);
    transition: color 0.2s ease;
}

.scenario-tab.active .scenario-tab-label {
    color: var(--color-text);
}

/* Desktop: show tabs and toggle scenarios */
@media (min-width: 900px) {
    .scenario-tabs {
        display: flex;
    }

    .scenario[data-scenario] {
        display: none;
    }

    .scenario[data-scenario].active {
        display: block;
    }
}

/* Principles grid */
.principles-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.85rem;
    margin: 1.5rem 0;
}

@media (max-width: 600px) {
    .principles-grid {
        grid-template-columns: 1fr;
    }
}

.principle {
    padding: 1.1rem;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background: var(--color-bg-elevated);
    transition: border-color 0.2s ease;
    position: relative;
    overflow: hidden;
}

/* Punchcard corner notch */
.principle::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 12px;
    height: 12px;
    background: var(--color-bg-dark);
    clip-path: polygon(0 100%, 0 0, 100% 100%);
    border-top-right-radius: 3px;
}

.principle:hover {
    border-color: var(--color-border-light);
}

.principle-icon {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    background: var(--color-blue-glow);
    color: var(--color-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.65rem;
}

.principle-icon i {
    width: 16px;
    height: 16px;
}

.principle h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
    color: var(--color-text);
}

.principle p {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-bottom: 0;
    line-height: 1.55;
}

/* Five Pillars grid */
.pillars-grid {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin: 1.5rem 0 2.5rem;
}

.pillar {
    display: flex;
    gap: 1rem;
    padding: 1.1rem 1.25rem 1.1rem 1.75rem;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    transition: border-color 0.2s ease;
    position: relative;
    overflow: hidden;
}

/* Punchcard left edge holes */
.pillar::before {
    content: '';
    position: absolute;
    left: 6px;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--color-bg-dark);
    box-shadow: 
        0 -10px 0 var(--color-bg-dark),
        0 10px 0 var(--color-bg-dark);
    opacity: 0.5;
}

.pillar:hover {
    border-color: var(--color-blue);
    cursor: pointer;
}

.pillar-number {
    width: 28px;
    height: 28px;
    min-width: 28px;
    background: linear-gradient(135deg, var(--color-blue) 0%, var(--color-pink) 100%);
    color: white;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    box-shadow: 0 2px 8px rgba(74, 125, 255, 0.3);
}

.pillar-content h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.3rem;
}

.pillar-content p {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin: 0;
    line-height: 1.55;
}

/* Comparison section */
.comparison-section {
    background: var(--color-bg-elevated);
    padding: 1.75rem;
    border-radius: 10px;
    margin: 2rem 0;
    border: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
}

.comparison-title {
    font-size: 0.95rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 1.25rem;
    color: var(--color-text);
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.85rem;
}

@media (max-width: 700px) {
    .comparison-grid {
        grid-template-columns: 1fr;
    }
}

.comparison-card {
    background: var(--color-bg-card);
    padding: 1.1rem;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

/* Punchcard corner cut */
.comparison-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 10px;
    height: 10px;
    background: var(--color-bg-elevated);
    clip-path: polygon(100% 0, 0 0, 100% 100%);
}

.comparison-card.highlighted {
    border-color: var(--color-blue);
    background: var(--color-blue-glow);
}

.comparison-card.highlighted::before {
    background: var(--color-bg);
}

.comparison-card h4 {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: 0.35rem;
    min-height: 1.2rem;
}

.comparison-card h4 i {
    width: 14px;
    height: 14px;
}

.comparison-card.highlighted h4 {
    color: var(--color-blue-bright);
}

.comparison-card-description {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: 0.75rem;
    line-height: 1.5;
    min-height: 2.25rem;
}

.comparison-card-problem {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    line-height: 1.5;
    flex-grow: 1;
}

.comparison-card-problem strong {
    color: var(--color-text-secondary);
}

.comparison-card .tag {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    margin-top: 0.75rem;
    font-weight: 600;
    align-self: flex-start;
}

.comparison-card .tag i {
    width: 10px;
    height: 10px;
}

.comparison-card .tag.negative {
    background: rgba(239, 68, 68, 0.15);
    color: #f87171;
}

.comparison-card .tag.positive {
    background: var(--color-blue-glow);
    color: var(--color-blue-bright);
}

/* FAQ */
.faq-item {
    border-bottom: 1px dashed var(--color-border);
    padding: 1.2rem 0;
    position: relative;
}

.faq-item:first-child {
    border-top: 1px dashed var(--color-border);
}

.faq-question {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-text);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: flex-start;
    gap: 0.45rem;
}

.faq-question i {
    color: var(--color-blue);
    width: 16px;
    height: 16px;
    margin-top: 0.15rem;
    flex-shrink: 0;
}

.faq-answer {
    color: var(--color-text-secondary);
    font-size: 0.85rem;
    padding-left: 1.4rem;
    line-height: 1.65;
}

/* Footer CTA */
.footer-cta {
    background: var(--color-bg);
    color: white;
    padding: 4rem 2rem;
    text-align: center;
    position: relative;
    border-top: 1px solid var(--color-border);
}

.footer-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-blue), var(--color-pink), transparent);
}

.footer-cta::after {
    content: '';
    position: absolute;
    top: 6px;
    left: 0;
    right: 0;
    height: 1px;
    background: repeating-linear-gradient(
        to right,
        var(--color-border-light) 0px,
        var(--color-border-light) 4px,
        transparent 4px,
        transparent 12px
    );
    opacity: 0.4;
}

.footer-cta h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.65rem;
    color: var(--color-text);
}

.footer-cta p {
    color: var(--color-text-muted);
    max-width: 400px;
    margin: 0 auto 1.5rem;
    font-size: 0.9rem;
}

.footer-cta a {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.75rem 1.5rem;
    background: var(--color-blue);
    color: white;
    text-decoration: none;
    font-weight: 600;
    border-radius: 6px;
    font-size: 0.85rem;
    transition: all 0.2s ease;
}

.footer-cta a:hover {
    background: var(--color-blue-bright);
    transform: translateY(-1px);
}

.footer-cta a i {
    width: 16px;
    height: 16px;
}

/* Site footer */
.site-footer {
    padding: 1.5rem 2rem;
    text-align: center;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-dark);
    position: relative;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 4px;
    left: 0;
    right: 0;
    height: 1px;
    background: repeating-linear-gradient(
        to right,
        var(--color-border-light) 0px,
        var(--color-border-light) 4px,
        transparent 4px,
        transparent 12px
    );
    opacity: 0.3;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-inner, .article, .diagram-section {
    animation: fadeInUp 0.45s ease-out;
}