:root {
    /* Color Palette */
    --color-black: #0A0A0A;
    --color-dark-grey: #1A1A1A;
    --color-medium-grey: #333333;
    --color-light-grey: #666666;
    --color-lighter-grey: #999999;
    --color-border-grey: #2A2A2A;
    --color-white: #FFFFFF;
    --color-off-white: #F5F5F5;
    --color-red: #E01E1E;
    --color-red-dark: #B01515;
    --color-red-light: #FF3333;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-black);
    color: var(--color-off-white);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--color-border-grey);
    transition: var(--transition-medium);
}

.navbar.scrolled {
    background: rgba(10, 10, 10, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem var(--spacing-md);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    text-decoration: none;
    letter-spacing: -0.5px;
}

.logo-latent {
    color: var(--color-white);
}

.logo-org {
    color: var(--color-red);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--color-lighter-grey);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition-fast);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-red);
    transition: var(--transition-fast);
}

/* Active menu item (WordPress) */
.nav-menu li.current-menu-item > a,
.nav-menu li.current_page_item > a {
    color: var(--color-white);
}

/* If you have underline animation */
.nav-menu li.current-menu-item > a::after,
.nav-menu li.current_page_item > a::after {
    width: 100%;
}

.btn-waitlist {
    background: var(--color-red);
    color: var(--color-white) !important;
    padding: 0.5rem 1.25rem;
    border-radius: 4px;
    transition: var(--transition-fast);
}

.btn-waitlist::after {
    display: none;
}

.btn-waitlist:hover {
    background: var(--color-red-light);
    transform: translateY(-2px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--color-white);
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    padding: 120px 0 60px;
    background: linear-gradient(180deg, var(--color-black) 0%, var(--color-dark-grey) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(224, 30, 30, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(224, 30, 30, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    margin-bottom: var(--spacing-xl);
    position: relative;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: left;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--color-medium-grey);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-red);
    margin-bottom: var(--spacing-md);
}

.hero-title {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-sm);
    color: var(--color-white);
}

.hero-title .highlight {
    color: var(--color-red);
    position: relative;
}

.hero-subtitle {
    font-size: 1.75rem;
    font-weight: 300;
    color: var(--color-lighter-grey);
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.subtitle-emphasis {
    font-style: italic;
    color: var(--color-white);
}

.hero-description {
    font-size: 1.15rem;
    color: var(--color-lighter-grey);
    margin-bottom: var(--spacing-sm);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-authors {
    font-size: 1rem;
    color: var(--color-light-grey);
    margin-bottom: var(--spacing-md);
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-top: var(--spacing-md);
}

/* 3D Book Mockup */
.hero-book {
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 2000px;
    position: relative;
    z-index: 1;
}

.book-3d {
    position: relative;
    width: 400px;
    height: 550px;
    transform-style: preserve-3d;
    transform: rotateY(-25deg) rotateX(5deg);
    transition: transform 0.6s ease;
    animation: bookFloat 6s ease-in-out infinite;
}

@keyframes bookFloat {
    0%, 100% {
        transform: rotateY(-25deg) rotateX(5deg) translateY(0);
    }
    50% {
        transform: rotateY(-25deg) rotateX(5deg) translateY(-10px);
    }
}

.book-3d:hover {
    transform: rotateY(-20deg) rotateX(2deg) scale(1.02);
}

.book-front {
    position: absolute;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
}

.book-cover {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%);
    border: 3px solid var(--color-red);
    border-radius: 0 8px 8px 0;
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: 
        15px 15px 40px rgba(0, 0, 0, 0.6),
        -5px 0 20px rgba(0, 0, 0, 0.3),
        inset 0 0 50px rgba(224, 30, 30, 0.05);
    position: relative;
    overflow: hidden;
}

.book-cover::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(135deg, transparent 0%, rgba(224, 30, 30, 0.03) 50%, transparent 100%),
        radial-gradient(circle at 80% 20%, rgba(224, 30, 30, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

.book-badge {
    background: var(--color-red);
    color: var(--color-white);
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 2px;
    text-align: center;
    border-radius: 4px;
    margin-bottom: 1rem;
    text-transform: uppercase;
    position: relative;
    z-index: 1;
}

.book-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    color: var(--color-white);
    text-align: center;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.book-title-main {
    color: var(--color-red);
    font-size: 3rem;
    display: block;
    margin: 0.25rem 0;
}

.book-subtitle {
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--color-lighter-grey);
    text-align: center;
    font-weight: 400;
    padding: 0 0.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.book-discover {
    background: rgba(224, 30, 30, 0.1);
    border: 1px solid var(--color-red);
    border-left: 3px solid var(--color-red);
    padding: 1rem;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.discover-badge {
    font-size: 0.7rem;
    font-weight: 800;
    color: var(--color-red);
    letter-spacing: 1.5px;
    text-align: center;
    margin-bottom: 0.5rem;
}

.discover-phases {
    font-size: 0.65rem;
    color: var(--color-light-grey);
    text-align: center;
    line-height: 1.6;
    letter-spacing: 0.5px;
}

.discover-phases span {
    color: var(--color-white);
    font-weight: 600;
}

.book-authors {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-white);
    text-align: center;
    letter-spacing: 1px;
    border-top: 2px solid var(--color-red);
    padding-top: 1rem;
    position: relative;
    z-index: 1;
}

.with-contributors {
    display: block;
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--color-lighter-grey);
    margin-top: 0.25rem;
    font-style: italic;
}

.book-spine {
    position: absolute;
    left: -50px;
    top: 0;
    width: 50px;
    height: 100%;
    background: linear-gradient(90deg, #0a0a0a 0%, #1a1a1a 50%, #0a0a0a 100%);
    border-top: 2px solid var(--color-border-grey);
    border-bottom: 2px solid var(--color-border-grey);
    border-left: 2px solid var(--color-border-grey);
    transform-origin: left;
    transform: rotateY(90deg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: -10px 0 20px rgba(0, 0, 0, 0.5);
}

.spine-content {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    padding: 2rem 0;
}

.spine-title {
    font-weight: 800;
    font-size: 0.95rem;
    color: var(--color-white);
    letter-spacing: 2px;
}

.spine-authors {
    font-size: 0.75rem;
    color: var(--color-lighter-grey);
    font-weight: 600;
}

/* Hero Stats Section */
.hero-stats-section {
    position: relative;
    z-index: 1;
    margin-top: var(--spacing-lg);
}

.stats-heading {
    text-align: center;
    font-size: 1.75rem;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.hero-visual {
    margin-top: var(--spacing-lg);
}

.hero-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    max-width: 1000px;
    margin: 0 auto;
}

.stat-card {
    background: var(--color-dark-grey);
    border: 1px solid var(--color-border-grey);
    padding: var(--spacing-md);
    border-radius: 8px;
    text-align: center;
    transition: var(--transition-medium);
}

.stat-card:hover {
    border-color: var(--color-red);
    transform: translateY(-5px);
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--color-red);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.95rem;
    color: var(--color-white);
    margin-bottom: 0.5rem;
    min-height: 2.5rem;
}

.stat-source {
    font-size: 0.75rem;
    color: var(--color-light-grey);
    font-style: italic;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: var(--transition-fast);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--color-red);
    color: var(--color-white);
}

.btn-primary:hover {
    background: var(--color-red-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(224, 30, 30, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-light-grey);
}

.btn-secondary:hover {
    border-color: var(--color-red);
    color: var(--color-red);
    transform: translateY(-2px);
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* Section Styles */
section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-family: var(--font-display);
    font-size: 2.75rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--color-lighter-grey);
    max-width: 700px;
    margin: 0 auto;
}

/* Problem Section */
.problem-section {
    background: var(--color-dark-grey);
    position: relative;
}

.problem-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--spacing-md);
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.problem-card {
    background: var(--color-black);
    border: 2px solid var(--color-border-grey);
    border-radius: 8px;
    padding: var(--spacing-md);
    position: relative;
}

.problem-card.illusion {
    border-color: var(--color-light-grey);
}

.problem-card.reality {
    border-color: var(--color-red);
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.card-header i {
    font-size: 2rem;
    color: var(--color-red);
}

.card-header h3 {
    font-size: 1.5rem;
    color: var(--color-white);
}

.card-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.card-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-lighter-grey);
    font-size: 1rem;
}

.card-list i {
    color: var(--color-red);
    font-size: 1.1rem;
}

.card-label {
    position: absolute;
    top: -12px;
    right: var(--spacing-md);
    background: var(--color-red);
    color: var(--color-white);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.vs-divider {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-red);
    text-align: center;
}

.problem-insight {
    max-width: 800px;
    margin: 0 auto;
}

.insight-box {
    background: var(--color-black);
    border: 2px solid var(--color-red);
    border-radius: 8px;
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-align: center;
}

.insight-box i {
    font-size: 2rem;
    color: var(--color-red);
}

.insight-box p {
    font-size: 1.25rem;
    color: var(--color-white);
}

/* Framework Preview */
.framework-preview {
    background: var(--color-black);
}

.framework-circle {
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    position: relative;
    aspect-ratio: 1;
}

.framework-phases {
    position: relative;
    width: 100%;
    height: 100%;
    display: grid;
    place-items: center;
}

.phase-item {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: var(--transition-medium);
}

.phase-item:nth-child(1) { top: 0%; left: 50%; transform: translate(-50%, 0); }
.phase-item:nth-child(2) { top: 15%; right: 15%; }
.phase-item:nth-child(3) { top: 50%; right: 0%; transform: translate(0, -50%); }
.phase-item:nth-child(4) { bottom: 15%; right: 15%; }
.phase-item:nth-child(5) { bottom: 0%; left: 50%; transform: translate(-50%, 0); }
.phase-item:nth-child(6) { bottom: 15%; left: 15%; }
.phase-item:nth-child(7) { top: 50%; left: 0%; transform: translate(0, -50%); }
.phase-item:nth-child(8) { top: 15%; left: 15%; }

.phase-number {
    width: 60px;
    height: 60px;
    background: var(--color-dark-grey);
    border: 3px solid var(--color-red);
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-white);
    transition: var(--transition-medium);
}

.phase-name {
    font-weight: 600;
    color: var(--color-lighter-grey);
    font-size: 0.95rem;
    transition: var(--transition-medium);
}

.phase-item:hover .phase-number {
    background: var(--color-red);
    transform: scale(1.1);
}

.phase-item:hover .phase-name {
    color: var(--color-white);
}

.framework-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    background: var(--color-dark-grey);
    border: 3px solid var(--color-red);
    border-radius: 50%;
    display: grid;
    place-items: center;
}

.center-content {
    text-align: center;
}

.center-icon {
    font-size: 2.5rem;
    color: var(--color-red);
    margin-bottom: 0.5rem;
}

.center-text {
    font-size: 0.875rem;
    color: var(--color-white);
    font-weight: 600;
    line-height: 1.3;
}

.framework-cta {
    text-align: center;
}

/* Book Structure */
.book-structure {
    background: var(--color-dark-grey);
}

.structure-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.structure-card {
    background: var(--color-black);
    border: 1px solid var(--color-border-grey);
    border-radius: 8px;
    padding: var(--spacing-md);
    transition: var(--transition-medium);
}

.structure-card:hover {
    border-color: var(--color-red);
    transform: translateY(-5px);
}

.structure-icon {
    font-size: 2.5rem;
    color: var(--color-red);
    margin-bottom: var(--spacing-sm);
}

.structure-part {
    font-size: 0.875rem;
    color: var(--color-red);
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.structure-card h3 {
    font-size: 1.5rem;
    color: var(--color-white);
    margin-bottom: 0.5rem;
}

.structure-desc {
    color: var(--color-lighter-grey);
    margin-bottom: var(--spacing-sm);
    font-style: italic;
}

.structure-chapters {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.structure-chapters li {
    color: var(--color-light-grey);
    font-size: 0.9rem;
    padding-left: 1.25rem;
    position: relative;
}

.structure-chapters li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-red);
}

.structure-cta {
    text-align: center;
}

/* Impact Section */
.impact-section {
    background: var(--color-black);
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.impact-card {
    background: var(--color-dark-grey);
    border: 1px solid var(--color-border-grey);
    border-radius: 8px;
    padding: var(--spacing-md);
    transition: var(--transition-medium);
}

.impact-card:hover {
    border-color: var(--color-red);
    transform: translateY(-5px);
}

.impact-icon {
    font-size: 2.5rem;
    color: var(--color-red);
    margin-bottom: var(--spacing-sm);
}

.impact-card h3 {
    font-size: 1.25rem;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.impact-card p {
    color: var(--color-lighter-grey);
    line-height: 1.6;
}

/* Waitlist Section */
.waitlist-section {
    background: var(--color-dark-grey);
    position: relative;
}

.waitlist-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: start;
}

.waitlist-info h2 {
    text-align: left;
    margin-bottom: var(--spacing-sm);
}

.waitlist-description {
    font-size: 1.1rem;
    color: var(--color-lighter-grey);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.waitlist-benefits {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-white);
    font-size: 1rem;
}

.benefit-item i {
    color: var(--color-red);
    font-size: 1.25rem;
}

.waitlist-form-container {
    background: var(--color-black);
    border: 2px solid var(--color-border-grey);
    border-radius: 8px;
    padding: var(--spacing-md);
}

.waitlist-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    color: var(--color-white);
    font-weight: 600;
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    background: var(--color-dark-grey);
    border: 1px solid var(--color-border-grey);
    border-radius: 4px;
    padding: 0.75rem;
    color: var(--color-white);
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-red);
}

.form-group input::placeholder,.form-group textarea::placeholder {
    color: var(--color-light-grey);
}

.form-message {
    padding: var(--spacing-sm);
    border-radius: 4px;
    text-align: center;
    font-weight: 600;
    display: none;
}

.form-message.success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid #22c55e;
    color: #22c55e;
    display: block;
}

.form-message.error {
    background: rgba(224, 30, 30, 0.1);
    border: 1px solid var(--color-red);
    color: var(--color-red);
    display: block;
}

/* Footer */
.footer {
    background: var(--color-black);
    border-top: 1px solid var(--color-border-grey);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    color: var(--color-light-grey);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: var(--color-dark-grey);
    border: 1px solid var(--color-border-grey);
    border-radius: 50%;
    display: grid;
    place-items: center;
    color: var(--color-lighter-grey);
    transition: var(--transition-fast);
    text-decoration: none;
}

.footer-social a:hover {
    background: var(--color-red);
    color: var(--color-white);
    border-color: var(--color-red);
}

.footer-column h4 {
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    color: var(--color-lighter-grey);
    text-decoration: none;
    transition: var(--transition-fast);
    font-size: 0.95rem;
}

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

.footer-newsletter-text {
    color: var(--color-light-grey);
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
}

.footer-bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border-grey);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--color-light-grey);
    font-size: 0.875rem;
}

.footer-legal {
    display: flex;
    gap: 1.5rem;
}

.footer-legal a {
    color: var(--color-lighter-grey);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-legal a:hover {
    color: var(--color-red);
}

/* Responsive Design */
@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        top: 75px;
        left: -100%;
        width: 100%;
        flex-direction: column;
        background: rgba(10, 10, 10, 0.98);
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        transition: var(--transition-medium);
        border-bottom: 1px solid var(--color-border-grey);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .hero-content {
        text-align: center;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .book-3d {
        width: 320px;
        height: 440px;
        transform: rotateY(-20deg) rotateX(3deg);
    }
    
    @keyframes bookFloat {
        0%, 100% {
            transform: rotateY(-20deg) rotateX(3deg) translateY(0);
        }
        50% {
            transform: rotateY(-20deg) rotateX(3deg) translateY(-8px);
        }
    }
    
    .book-title {
        font-size: 2rem;
    }
    
    .book-title-main {
        font-size: 2.5rem;
    }
    
    .book-cover {
        padding: 2rem 1.5rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .problem-grid {
        grid-template-columns: 1fr;
    }
    
    .vs-divider {
        transform: rotate(90deg);
    }
    
    .waitlist-content {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
}

@media (max-width: 640px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-stats-grid {
        grid-template-columns: 1fr;
    }
    
    .book-3d {
        width: 280px;
        height: 385px;
        transform: rotateY(-15deg) rotateX(2deg);
    }
    
    @keyframes bookFloat {
        0%, 100% {
            transform: rotateY(-15deg) rotateX(2deg) translateY(0);
        }
        50% {
            transform: rotateY(-15deg) rotateX(2deg) translateY(-5px);
        }
    }
    
    .book-title {
        font-size: 1.75rem;
    }
    
    .book-title-main {
        font-size: 2.25rem;
    }
    
    .book-subtitle {
        font-size: 0.85rem;
    }
    
    .discover-phases {
        font-size: 0.6rem;
    }
    
    .book-authors {
        font-size: 0.85rem;
    }
    
    .framework-circle {
        transform: scale(0.8);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}