:root {
    /* Color Palette — modern, educational, human-centered */
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-primary-light: #dbeafe;
    --color-secondary: #0f172a;
    --color-accent: #06b6d4;
    --color-accent-light: #cffafe;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-surface: #ffffff;
    --color-surface-alt: #f8fafc;
    --color-surface-elevated: #ffffff;
    --color-text: #1e293b;
    --color-text-muted: #475569;
    --color-text-inverse: #ffffff;
    --color-border: #e2e8f0;
    --color-border-light: #f1f5f9;
    --color-focus-ring: rgba(37, 99, 235, 0.3);

    /* Typography */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing Scale */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    /* Sizing */
    --max-width: 1200px;
    --header-height: 72px;
    --border-radius: 8px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-surface);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img, svg {
    display: block;
    max-width: 100%;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-dark);
}

ul {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    line-height: 1.2;
    color: var(--color-secondary);
}

/* ============================================
   UTILITIES
   ============================================ */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border-radius: var(--border-radius);
    z-index: 1000;
    font-weight: 500;
}

.skip-link:focus {
    top: var(--space-md);
    color: var(--color-text-inverse);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.nav-toggle:focus-visible,
.nav-link:focus-visible {
    outline: 3px solid transparent;
    box-shadow: 0 0 0 3px var(--color-focus-ring);
    border-radius: var(--border-radius);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 500;
    line-height: 1;
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    gap: var(--space-sm);
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: var(--color-text-inverse);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-primary);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary-dark);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-inverse);
    border-color: var(--color-text-inverse);
}

.btn-outline:hover {
    background: var(--color-text-inverse);
    color: var(--color-primary);
    transform: translateY(-1px);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.0625rem;
}

.btn-tertiary {
    background: transparent;
    color: var(--color-primary);
    border-color: transparent;
}

.btn-tertiary:hover {
    color: var(--color-primary-dark);
    background: var(--color-primary-light);
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border-light);
    z-index: 100;
    display: flex;
    align-items: center;
}

.site-header.is-scrolled {
    box-shadow: var(--shadow-sm);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    color: var(--color-secondary);
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.125rem;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-primary);
    border-radius: 1px;
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: 1px solid transparent;
    cursor: pointer;
    padding: var(--space-sm);
    border-radius: var(--border-radius);
}

.nav-toggle-bar {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-secondary);
    border-radius: 2px;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
}

/* ============================================
   HERO
   ============================================ */
.hero {
    padding: calc(var(--header-height) + var(--space-4xl)) 0 var(--space-4xl);
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-primary-light) 50%, var(--color-accent-light) 100%);
    position: relative;
    overflow: hidden;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: var(--space-3xl);
}

.hero-content h1 {
    font-size: clamp(2.5rem, 5vw, 3.75rem);
    font-weight: 700;
    margin-bottom: var(--space-lg);
}

.hero-content .highlight {
    color: var(--color-primary);
}

.hero-subtitle {
    font-size: 1.1875rem;
    color: var(--color-text-muted);
    max-width: 540px;
    margin-bottom: var(--space-2xl);
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.eyebrow {
    display: inline-block;
    margin-bottom: var(--space-md);
    color: var(--color-primary);
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hero-points {
    margin-bottom: var(--space-xl);
    display: grid;
    gap: var(--space-sm);
}

.hero-points li {
    position: relative;
    padding-left: var(--space-lg);
    color: var(--color-text);
}

.hero-points li::before {
    content: "\2713";
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: 700;
}

.hero-book-panel {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-book-card {
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--space-2xl);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.hero-book-mockup {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-book-cover-img {
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    max-height: 260px;
    width: auto;
}

.hero-book-caption {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

.proof-card {
    width: 100%;
    padding: var(--space-2xl);
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-xl);
    backdrop-filter: blur(12px);
}

.proof-card h2 {
    font-size: 1.5rem;
    margin-bottom: var(--space-lg);
}

.proof-list {
    display: grid;
    gap: var(--space-md);
}

.proof-list li {
    position: relative;
    padding-left: var(--space-lg);
    color: var(--color-text);
}

.proof-list li::before {
    content: "\2022";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

/* Hero Visual (abstract shapes) */
.hero-visual {
    position: relative;
    height: 400px;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.6;
    animation: float 6s ease-in-out infinite;
}

.hero-shape-1 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    top: 10%;
    left: 15%;
    animation-delay: 0s;
}

.hero-shape-2 {
    width: 180px;
    height: 180px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-success));
    top: 50%;
    right: 10%;
    animation-delay: -2s;
}

.hero-shape-3 {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--color-warning), var(--color-primary));
    bottom: 10%;
    left: 30%;
    animation-delay: -4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(3deg); }
}

/* ============================================
   SECTIONS (shared)
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-header h2 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   SERVICES
   ============================================ */
.services {
    padding: var(--space-4xl) 0;
    background: var(--color-surface);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-xl);
}

.service-card {
    padding: var(--space-2xl);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-base);
}

.service-card:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.service-icon {
    width: 48px;
    height: 48px;
    color: var(--color-primary);
    margin-bottom: var(--space-lg);
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-md);
}

.service-card p {
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* ============================================
   FEATURED BOOK
   ============================================ */
.featured-book {
    padding: var(--space-4xl) 0;
    background: var(--color-surface-alt);
}

.featured-book .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: var(--space-3xl);
}

.badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: var(--color-success);
    color: var(--color-text-inverse);
    font-size: 0.8125rem;
    font-weight: 600;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-lg);
}

.book-content h2 {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    margin-bottom: var(--space-sm);
}

.book-series {
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: var(--space-lg);
}

.book-description {
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

.book-highlights {
    margin-bottom: var(--space-2xl);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
}

.book-highlights li {
    position: relative;
    padding-left: var(--space-lg);
    color: var(--color-text);
    font-size: 0.9375rem;
}

.book-highlights li::before {
    content: "\2713";
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: 700;
}

/* Book Visual / Mockup */
.book-visual {
    display: flex;
    justify-content: center;
}

.book-mockup {
    perspective: 800px;
}

.trust-strip {
    padding: var(--space-xl) 0;
    background: var(--color-surface-alt);
    border-bottom: 1px solid var(--color-border);
}

.trust-strip-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
}

.trust-chip {
    padding: 0.625rem 1.125rem;
    border-radius: 999px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    font-size: 0.9375rem;
    font-weight: 500;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.book-cover {
    width: 240px;
    height: 340px;
    background: linear-gradient(145deg, var(--color-primary), var(--color-primary-dark));
    border-radius: 4px 16px 16px 4px;
    box-shadow: var(--shadow-xl), -10px 0 30px rgba(37, 99, 235, 0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl);
    transform: rotateY(-8deg);
    transition: transform var(--transition-slow);
}

.book-cover:hover {
    transform: rotateY(0deg);
}

.book-cover-title {
    color: var(--color-text-inverse);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.375rem;
    text-align: center;
    line-height: 1.3;
    margin-bottom: var(--space-lg);
}

.book-cover-series {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ============================================
   AUDIENCES
   ============================================ */
.audiences {
    padding: var(--space-4xl) 0;
    background: var(--color-surface);
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-xl);
}

.audience-card {
    text-align: center;
    padding: var(--space-2xl) var(--space-xl);
    border-radius: var(--border-radius-lg);
    background: var(--color-surface-alt);
    transition: all var(--transition-base);
}

.audience-card:hover {
    background: var(--color-primary-light);
    transform: translateY(-4px);
}

.audience-icon {
    display: block;
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-md);
    color: var(--color-primary);
}

.audience-icon svg {
    width: 100%;
    height: 100%;
}

.audience-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
}

.audience-card p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
    padding: var(--space-4xl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    text-align: center;
    color: var(--color-text-inverse);
}

.cta-section h2 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    color: var(--color-text-inverse);
    margin-bottom: var(--space-md);
}

.cta-section p {
    font-size: 1.125rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto var(--space-2xl);
}

.cta-buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

.inline-actions {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.inline-actions--center {
    justify-content: center;
    margin-top: var(--space-xl);
}

.inline-actions--spaced {
    margin-top: var(--space-2xl);
}

/* Card content typography (pillars & series showcase) */
.card-heading-lg {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.card-heading-md {
    font-size: 1.375rem;
    margin: var(--space-sm) 0;
}

.card-text {
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.card-text-tight {
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.card-meta {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    margin-bottom: var(--space-lg);
}

.card-link {
    margin-top: var(--space-sm);
}

/* Honeypot field — visually and functionally hidden from users */
.hp-field {
    display: none;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    padding: var(--space-3xl) 0 var(--space-xl);
    background: var(--color-secondary);
    color: rgba(255, 255, 255, 0.7);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand p {
    margin-top: var(--space-md);
    max-width: 300px;
    line-height: 1.7;
}

.footer-brand .logo {
    color: var(--color-text-inverse);
}

.footer-links h4 {
    color: var(--color-text-inverse);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.9375rem;
    display: block;
    padding: var(--space-xs) 0;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 0.875rem;
}

/* ============================================
   RESPONSIVE — TABLET
   ============================================ */
@media (max-width: 968px) {
    .hero .container {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        display: none;
    }

    .hero-book-panel {
        display: flex;
    }

    .hero {
        min-height: auto;
        padding-bottom: var(--space-3xl);
    }

    .featured-book .container {
        grid-template-columns: 1fr;
    }

    .book-visual {
        order: -1;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-xl);
    }
}

/* ============================================
   RESPONSIVE — MOBILE
   ============================================ */
/* Mobile navigation — collapses to a toggle once the 6-item bar would crowd */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-list {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-surface);
        flex-direction: column;
        padding: var(--space-xl);
        gap: var(--space-lg);
        border-bottom: 1px solid var(--color-border);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition-base);
    }

    .nav-list.is-open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
}

@media (max-width: 640px) {
    :root {
        --space-4xl: 3.5rem;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-cta .btn {
        width: 100%;
    }

    .contact-actions,
    .inline-actions {
        flex-direction: column;
    }

    .contact-actions .btn,
    .inline-actions .btn {
        width: 100%;
    }

    .metadata-item {
        flex-direction: column;
        align-items: flex-start;
    }

    .book-highlights {
        grid-template-columns: 1fr;
    }

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

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

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

@media (max-width: 400px) {
    .audience-grid {
        grid-template-columns: 1fr;
    }
}


/* ============================================
   PAGE HERO (inner pages)
   ============================================ */
.page-hero {
    padding: calc(var(--header-height) + var(--space-3xl)) 0 var(--space-3xl);
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-primary-light) 100%);
    text-align: center;
}

.page-hero h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--space-md);
}

.page-hero-subtitle {
    font-size: 1.1875rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ============================================
   CONTENT SECTIONS (inner pages)
   ============================================ */
.content-section {
    padding: var(--space-4xl) 0;
}

.narrow-container {
    max-width: 760px;
}

.content-section.alt-bg {
    background: var(--color-surface-alt);
}

.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
}

.content-block h2 {
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
}

.content-block p {
    color: var(--color-text-muted);
    line-height: 1.8;
}

/* ============================================
   VALUES GRID
   ============================================ */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-xl);
}

.value-card {
    padding: var(--space-2xl);
    background: var(--color-surface);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
}

.value-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
    color: var(--color-primary);
}

.value-card p {
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* ============================================
   CREDIBILITY
   ============================================ */
.credibility-content {
    max-width: 720px;
    margin: 0 auto;
}

.credibility-content > p {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
    text-align: center;
}

.credibility-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.credibility-list li {
    padding-left: var(--space-lg);
    position: relative;
    color: var(--color-text);
}

.credibility-list li::before {
    content: "\2713";
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: 700;
}

/* ============================================
   SERVICE DETAIL (services page)
   ============================================ */
.service-detail {
    max-width: 720px;
}

.founder-section {
    display: flex;
    justify-content: center;
}

.founder-section-wide {
    justify-content: flex-start;
}

.founder-profile-card {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: var(--space-2xl);
    align-items: start;
    padding: var(--space-2xl);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-xl);
    background: var(--color-surface);
    box-shadow: var(--shadow-md);
}

.founder-profile-card-wide {
    width: 100%;
}

.founder-photo-wrap {
    width: 160px;
    aspect-ratio: 1 / 1;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.founder-photo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--color-primary-light);
    box-shadow: var(--shadow-md);
}

.founder-photo-fallback {
    display: none;
    width: 160px;
    aspect-ratio: 1 / 1;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary-dark);
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
}

.founder-kicker {
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.founder-summary {
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.founder-credentials {
    margin-bottom: var(--space-xl);
}

.trust-cards-grid .service-card,
.outcome-card,
.timeline-item,
.service-package-card,
.proof-note-card,
.metadata-panel,
.credentials-panel,
.chapters-card,
.faq-item,
.privacy-content {
    box-shadow: var(--shadow-sm);
}

.outcomes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-xl);
}

.outcome-card {
    padding: var(--space-2xl);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    background: var(--color-surface);
}

.outcome-card h3 {
    margin-bottom: var(--space-sm);
}

.outcome-card p {
    color: var(--color-text-muted);
}

.proof-note-card {
    max-width: 840px;
    margin: 0 auto;
    padding: var(--space-xl);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    background: var(--color-surface);
    color: var(--color-text);
}

.rating-display {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}

.rating-stars {
    color: var(--color-warning);
    font-size: 1.5rem;
    letter-spacing: 0.05em;
}

.rating-score {
    font-size: 1.75rem;
    font-weight: 700;
    font-family: var(--font-heading);
    color: var(--color-secondary);
}

.rating-out-of {
    font-size: 1rem;
    font-weight: 400;
    color: var(--color-text-muted);
}

.compact-note {
    margin-top: var(--space-xl);
}

.feature-list-columns {
    columns: 2;
    column-gap: var(--space-2xl);
}

.credentials-panel {
    padding: var(--space-2xl);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    background: var(--color-surface);
}

.timeline-list {
    display: grid;
    gap: var(--space-lg);
}

.timeline-item {
    padding: var(--space-xl);
    border-left: 4px solid var(--color-primary);
    background: var(--color-surface);
    border-radius: 0 var(--border-radius-lg) var(--border-radius-lg) 0;
}

.timeline-label {
    display: inline-block;
    margin-bottom: var(--space-sm);
    color: var(--color-primary);
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.timeline-item p {
    color: var(--color-text-muted);
}

.service-package-card {
    padding: var(--space-2xl);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-xl);
    background: var(--color-surface);
}

.service-package-header {
    margin-bottom: var(--space-xl);
}

.service-package-header > p {
    color: var(--color-text-muted);
    line-height: 1.8;
    max-width: 780px;
}

.service-package-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.service-package-grid h3 {
    font-size: 1rem;
    margin-bottom: var(--space-sm);
}

.service-package-grid p {
    color: var(--color-text-muted);
}

.badge-accent {
    background: var(--color-accent);
}

.badge-warning {
    background: var(--color-warning);
    color: var(--color-secondary);
}

.badge-success {
    background: var(--color-success);
}

.service-detail-content h2 {
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    margin-bottom: var(--space-md);
}

.service-detail-content > p {
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
    font-size: 1.0625rem;
}

.feature-list {
    margin-bottom: var(--space-2xl);
}

.feature-list li {
    padding: var(--space-sm) 0;
    padding-left: var(--space-lg);
    position: relative;
    color: var(--color-text);
}

.feature-list li::before {
    content: "\2713";
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: 700;
}

/* ============================================
   BOOKS GRID
   ============================================ */
.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-xl);
}

.book-card {
    padding: var(--space-xl);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-base);
    position: relative;
}

.book-card:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.book-card-number {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-light);
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.875rem;
    border-radius: 50%;
}

.book-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-xs);
    padding-right: var(--space-2xl);
}

.book-card p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

/* Featured book detail (books page) */
.featured-book-detail {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.book-info .badge {
    margin-bottom: var(--space-md);
}

.book-info h2 {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    margin-bottom: var(--space-md);
}

.book-tagline {
    font-size: 1.0625rem;
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
}

.book-info h3 {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
    margin-top: var(--space-xl);
}

.chapters-list ol {
    list-style: decimal;
    padding-left: var(--space-xl);
    color: var(--color-text);
    line-height: 2;
}

.book-detail-layout {
    align-items: center;
}

.metadata-panel {
    display: grid;
    gap: var(--space-md);
    margin: var(--space-xl) 0;
    padding: var(--space-xl);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    background: var(--color-surface-alt);
}

.metadata-item {
    display: flex;
    justify-content: space-between;
    gap: var(--space-lg);
    align-items: baseline;
    border-bottom: 1px solid var(--color-border-light);
    padding-bottom: var(--space-sm);
}

.metadata-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.metadata-item span {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

.metadata-item strong {
    text-align: right;
}

.chapters-card {
    padding: var(--space-xl);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    background: var(--color-surface);
}

.placeholder-card {
    border-style: dashed;
}

/* ============================================
   CONTACT FORM
   ============================================ */
.contact-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.contact-form-wrapper h2 {
    font-size: 1.5rem;
    margin-bottom: var(--space-xl);
}

.form-intro {
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
}

.required {
    color: #ef4444;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-body);
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    background: var(--color-surface);
    color: var(--color-text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-group input[aria-invalid="true"],
.form-group select[aria-invalid="true"],
.form-group textarea[aria-invalid="true"] {
    border-color: #dc2626;
}

.field-error {
    color: #b91c1c;
    font-size: 0.875rem;
    margin-top: var(--space-xs);
}

.privacy-note-box {
    margin-bottom: var(--space-xl);
}

.privacy-note {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
}

.contact-actions {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.form-status {
    min-height: 1.5rem;
    margin-top: var(--space-md);
    color: var(--color-primary-dark);
    font-weight: 500;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Contact Info Sidebar */
.contact-info-card {
    padding: var(--space-xl);
    background: var(--color-surface-alt);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--space-xl);
}

.contact-info-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-lg);
}

.contact-method {
    margin-bottom: var(--space-lg);
}

.contact-method h4 {
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-xs);
}

.contact-quick-links li {
    padding: var(--space-xs) 0;
}

.contact-quick-links a {
    font-size: 0.9375rem;
}

.contact-quick-links li {
    color: var(--color-text);
    padding-left: var(--space-lg);
    position: relative;
}

.contact-quick-links li::before {
    content: "\2022";
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

/* ============================================
   FADE-IN ANIMATION
   ============================================ */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.faq-list {
    display: grid;
    gap: var(--space-lg);
}

.faq-item {
    padding: var(--space-xl);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    background: var(--color-surface);
}

.faq-item h3 {
    margin-bottom: var(--space-sm);
}

.faq-item p,
.privacy-content p {
    color: var(--color-text-muted);
}

.privacy-content {
    padding: var(--space-2xl);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-xl);
    background: var(--color-surface);
}

.privacy-content h2 {
    margin: var(--space-xl) 0 var(--space-sm);
}

.privacy-content h2:first-child {
    margin-top: 0;
}

/* ============================================
   RESPONSIVE ADDITIONS
   ============================================ */
@media (max-width: 968px) {
    .two-col {
        grid-template-columns: 1fr;
    }

    .featured-book-detail {
        grid-template-columns: 1fr;
    }

    .founder-profile-card {
        grid-template-columns: 1fr;
    }

    .feature-list-columns {
        columns: 1;
    }

    .featured-book-detail .book-visual {
        justify-self: center;
    }

    .contact-layout {
        grid-template-columns: 1fr;
    }

    .credibility-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .books-grid {
        grid-template-columns: 1fr;
    }
}


/* ============================================
   REAL BOOK COVER IMAGE
   ============================================ */
.book-cover-img {
    width: 280px;
    height: auto;
    border-radius: 4px 12px 12px 4px;
    box-shadow: var(--shadow-xl), -8px 0 24px rgba(37, 99, 235, 0.15);
    transform: rotateY(-5deg);
    transition: transform var(--transition-slow);
}

.book-cover-img:hover {
    transform: rotateY(0deg) scale(1.02);
}

@media (max-width: 640px) {
    .book-cover-img {
        width: 200px;
    }
}

body.nav-open {
    overflow: hidden;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .fade-in {
        opacity: 1;
        transform: none;
    }
}


/* ============================================
   SVG LOGO ICON
   ============================================ */
.logo-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--border-radius);
}