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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #4A4A4A;
    background-color: #FFFFFF;
    overflow-x: hidden;
}

/* CSS Custom Properties for Color Palette */
:root {
    --primary-navy: #002D72;
    --accent-teal: #00B2A9;
    --background-white: #FFFFFF;
    --secondary-gray: #4A4A4A;
    --highlight-ice: #E6F7F9;
    --cta-cyan: #007C91;
    --midnight: #1A1A2E;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--primary-navy);
}

h1 { 
    font-size: 3.5rem; 
    font-weight: 800;
}
h2 { 
    font-size: 2.5rem; 
    font-weight: 700;
}
h3 { 
    font-size: 2rem; 
    font-weight: 600;
}
h4 { 
    font-size: 1.5rem; 
    font-weight: 600;
}
h5 { 
    font-size: 1.25rem; 
    font-weight: 600;
}
h6 { 
    font-size: 1rem; 
    font-weight: 600;
}

p {
    margin-bottom: 1rem;
    color: var(--secondary-gray);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 14px 28px;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-navy) 0%, var(--cta-cyan) 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 45, 114, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 30px rgba(0, 45, 114, 0.4);
    background: linear-gradient(135deg, var(--cta-cyan) 0%, var(--accent-teal) 100%);
}

.btn-secondary {
    background: transparent;
    color: var(--accent-teal);
    border: 2px solid var(--accent-teal);
    box-shadow: 0 4px 15px rgba(0, 178, 169, 0.2);
}

.btn-secondary:hover {
    background: var(--accent-teal);
    color: white;
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 30px rgba(0, 178, 169, 0.3);
}

/* Gradient Text */
.gradient-text {
    background: linear-gradient(135deg, var(--accent-teal) 0%, var(--cta-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.gradient-text::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(135deg, var(--accent-teal) 0%, var(--cta-cyan) 100%);
    border-radius: 2px;
    opacity: 0.3;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--highlight-ice);
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 2px 20px rgba(0, 45, 114, 0.1);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 30px rgba(0, 45, 114, 0.15);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-logo img {
    height: 40px;
    width: auto;
    transition: transform 0.3s ease;
}

.nav-logo:hover img {
    transform: scale(1.05);
}

.nav-logo h2 {
    color: var(--primary-navy);
    margin: 0;
    font-weight: 700;
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    gap: 2.5rem;
}

.nav-link {
    text-decoration: none;
    color: var(--primary-navy);
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link:hover {
    color: var(--accent-teal);
    transform: translateY(-2px);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(135deg, var(--accent-teal) 0%, var(--cta-cyan) 100%);
    transition: width 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border-radius: 2px;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--background-white) 0%, var(--highlight-ice) 50%, var(--background-white) 100%);
    animation: heroGradientShift 8s ease-in-out infinite;
}

@keyframes heroGradientShift {
    0%, 100% {
        background: linear-gradient(135deg, var(--background-white) 0%, var(--highlight-ice) 50%, var(--background-white) 100%);
    }
    50% {
        background: linear-gradient(135deg, var(--highlight-ice) 0%, var(--background-white) 50%, var(--highlight-ice) 100%);
    }
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: linear-gradient(135deg, var(--highlight-ice) 0%, rgba(0, 178, 169, 0.1) 100%);
    color: var(--accent-teal);
    padding: 12px 24px;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 2rem;
    border: 1px solid var(--accent-teal);
    box-shadow: 0 4px 15px rgba(0, 178, 169, 0.2);
    animation: badgePulse 3s ease-in-out infinite;
}

@keyframes badgePulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 4px 15px rgba(0, 178, 169, 0.2);
    }
    50% {
        transform: scale(1.02);
        box-shadow: 0 6px 20px rgba(0, 178, 169, 0.3);
    }
}

.hero-title {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--primary-navy);
    animation: titleSlideIn 1.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes titleSlideIn {
    0% {
        opacity: 0;
        transform: translateY(50px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--secondary-gray);
    margin-bottom: 2.5rem;
    line-height: 1.7;
    animation: subtitleFadeIn 1.5s ease-out 0.3s both;
}

@keyframes subtitleFadeIn {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    margin-bottom: 3rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 16px;
    box-shadow: 0 8px 25px rgba(0, 45, 114, 0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    animation: statSlideUp 1s ease-out calc(0.6s + var(--delay, 0s)) both;
}

.stat-item:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 15px 35px rgba(0, 45, 114, 0.2);
}

.stat-item:nth-child(1) { --delay: 0s; }
.stat-item:nth-child(2) { --delay: 0.2s; }
.stat-item:nth-child(3) { --delay: 0.4s; }

@keyframes statSlideUp {
    0% {
        opacity: 0;
        transform: translateY(40px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-teal);
    display: block;
    background: linear-gradient(135deg, var(--accent-teal) 0%, var(--cta-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 1rem;
    color: var(--secondary-gray);
    font-weight: 600;
    margin-top: 0.5rem;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    animation: buttonsSlideIn 1.8s ease-out 0.9s both;
}

@keyframes buttonsSlideIn {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.book-mockup {
    perspective: 1200px;
    animation: bookFloat 1.5s ease-out 1.2s both;
}

@keyframes bookFloat {
    0% {
        opacity: 0;
        transform: translateX(100px) scale(0.8);
    }
    100% {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
}

.book-cover {
    width: 320px;
    height: 420px;
    position: relative;
    transform-style: preserve-3d;
    transform: rotateY(-15deg) rotateX(5deg);
    transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    animation: bookHover 4s ease-in-out infinite;
}

@keyframes bookHover {
    0%, 100% {
        transform: rotateY(-15deg) rotateX(5deg) translateY(0px);
    }
    50% {
        transform: rotateY(-12deg) rotateX(3deg) translateY(-10px);
    }
}

.book-cover:hover {
    transform: rotateY(-8deg) rotateX(2deg) scale(1.05);
    animation-play-state: paused;
}

.book-spine {
    position: absolute;
    left: -22px;
    top: 0;
    width: 22px;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-navy) 0%, var(--midnight) 100%);
    transform: rotateY(-90deg);
    transform-origin: right;
    border-radius: 0 0 0 8px;
}

.book-front {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-navy) 0%, var(--cta-cyan) 50%, var(--accent-teal) 100%);
    border-radius: 12px;
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    color: white;
    box-shadow: 0 25px 50px rgba(0, 45, 114, 0.3);
    position: relative;
    overflow: hidden;
}

.book-front::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="neural" patternUnits="userSpaceOnUse" width="20" height="20"><circle cx="10" cy="10" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23neural)"/></svg>');
    opacity: 0.3;
}

.book-title {
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1.2;
}

.book-subtitle {
    font-size: 1rem;
    opacity: 0.9;
    line-height: 1.4;
}

.book-author {
    font-size: 1.1rem;
    font-weight: 500;
    opacity: 0.8;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: 1;
}

.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
}

.floating-element {
    position: absolute;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(0, 178, 169, 0.15) 0%, rgba(0, 124, 145, 0.1) 100%);
    border-radius: 50%;
    animation: neuralFloat var(--duration, 6s) ease-in-out infinite;
    animation-delay: var(--delay, 0s);
    border: 2px solid rgba(0, 178, 169, 0.2);
}

.floating-element::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    background: var(--accent-teal);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.6;
    animation: pulse 2s ease-in-out infinite;
}

.floating-element:nth-child(1) {
    top: 15%;
    left: 8%;
    --duration: 8s;
    --delay: 0s;
}

.floating-element:nth-child(2) {
    top: 65%;
    right: 12%;
    --duration: 10s;
    --delay: 2s;
}

.floating-element:nth-child(3) {
    bottom: 25%;
    left: 15%;
    --duration: 7s;
    --delay: 4s;
}

.floating-element:nth-child(4) {
    top: 40%;
    right: 25%;
    --duration: 9s;
    --delay: 1s;
}

.floating-element:nth-child(5) {
    bottom: 45%;
    left: 35%;
    --duration: 11s;
    --delay: 3s;
}

@keyframes neuralFloat {
    0%, 100% { 
        transform: translateY(0px) translateX(0px) rotate(0deg) scale(1); 
    }
    25% {
        transform: translateY(-30px) translateX(15px) rotate(90deg) scale(1.1);
    }
    50% { 
        transform: translateY(-20px) translateX(-10px) rotate(180deg) scale(0.9); 
    }
    75% {
        transform: translateY(10px) translateX(-20px) rotate(270deg) scale(1.05);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.6;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.3);
        opacity: 0.9;
    }
}

/* Statistics Section */
.statistics-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--background-white) 0%, var(--highlight-ice) 100%);
    position: relative;
    overflow: hidden;
}

.statistics-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="dots" patternUnits="userSpaceOnUse" width="10" height="10"><circle cx="5" cy="5" r="0.5" fill="rgba(0,178,169,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
    opacity: 0.5;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    position: relative;
    z-index: 2;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 2.5rem;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 20px;
    box-shadow: 0 8px 25px rgba(0, 45, 114, 0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(0, 178, 169, 0.1);
    backdrop-filter: blur(10px);
}

.stat-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 45, 114, 0.2);
    border-color: var(--accent-teal);
}

.stat-icon {
    width: 70px;
    height: 70px;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--accent-teal) 0%, var(--cta-cyan) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.8rem;
    box-shadow: 0 8px 20px rgba(0, 178, 169, 0.3);
    transition: all 0.3s ease;
}

.stat-card:hover .stat-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 12px 25px rgba(0, 178, 169, 0.4);
}

.stat-content h3 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary-navy);
    margin-bottom: 0.5rem;
}

.stat-content p {
    color: var(--secondary-gray);
    margin: 0;
    font-weight: 600;
    font-size: 1.1rem;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 5rem;
    position: relative;
}

.section-header::after {
    content: '';
    position: absolute;
    bottom: -2rem;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, var(--accent-teal) 0%, var(--cta-cyan) 100%);
    border-radius: 2px;
}

.section-header h2 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--primary-navy);
    position: relative;
}

.section-header p {
    font-size: 1.3rem;
    color: var(--secondary-gray);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Book Section */
.book-section {
    padding: 8rem 0;
    background: linear-gradient(135deg, var(--highlight-ice) 0%, var(--background-white) 50%, var(--highlight-ice) 100%);
    position: relative;
}

.book-overview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.book-content h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: #1a1a1a;
}

.book-content p {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.key-benefits {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 45, 114, 0.08);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(0, 178, 169, 0.1);
}

.benefit-item:hover {
    transform: translateX(10px);
    box-shadow: 0 8px 25px rgba(0, 45, 114, 0.15);
    border-color: var(--accent-teal);
}

.benefit-item i {
    color: var(--accent-teal);
    font-size: 1.4rem;
    padding: 0.5rem;
    background: rgba(0, 178, 169, 0.1);
    border-radius: 8px;
}

.book-structure h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #1a1a1a;
}

.chapters-overview {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.part-section {
    padding: 2rem;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 16px;
    box-shadow: 0 8px 25px rgba(0, 45, 114, 0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(0, 178, 169, 0.1);
    backdrop-filter: blur(10px);
}

.part-section:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 45, 114, 0.2);
    border-color: var(--accent-teal);
}

.part-section h4 {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--primary-navy);
}

.part-section i {
    color: var(--accent-teal);
    font-size: 1.5rem;
    padding: 0.5rem;
    background: rgba(0, 178, 169, 0.1);
    border-radius: 8px;
}

.part-section p {
    color: #666;
    margin: 0;
}

/* Executive Briefing */
.executive-briefing {
    background: white;
    padding: 3rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.executive-briefing h3 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 3rem;
    color: #1a1a1a;
}

.insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.insight-card {
    padding: 2.5rem;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 16px;
    border-left: 5px solid var(--accent-teal);
    position: relative;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 25px rgba(0, 45, 114, 0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.insight-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 45, 114, 0.2);
    border-left-color: var(--cta-cyan);
}

.insight-number {
    position: absolute;
    top: -15px;
    left: 25px;
    background: linear-gradient(135deg, var(--accent-teal) 0%, var(--cta-cyan) 100%);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.2rem;
    box-shadow: 0 6px 20px rgba(0, 178, 169, 0.3);
}

.insight-card h4 {
    margin-top: 1rem;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.insight-card p {
    color: #666;
    margin: 0;
    line-height: 1.6;
}

/* Assessment Section */
.assessment-section {
    padding: 6rem 0;
    background: white;
}

.assessment-container {
    max-width: 800px;
    margin: 0 auto;
}

.assessment-intro {
    text-align: center;
    margin-bottom: 3rem;
}

.assessment-intro h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.assessment-intro p {
    font-size: 1.1rem;
    color: #666;
}

.assessment-form {
    background: #f8fafc;
    padding: 3rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.question-section {
    display: none;
}

.question-section.active {
    display: block;
}

.question-section h4 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: #1a1a1a;
    text-align: center;
}

.question {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.question p {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.options {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.options label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.options label:hover {
    background: #e2e8f0;
    border-color: #667eea;
}

.options input[type="radio"] {
    margin-top: 2px;
}

.options input[type="radio"]:checked + span {
    color: #667eea;
    font-weight: 600;
}

.assessment-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 3rem;
}

.progress-bar {
    margin-top: 2rem;
    text-align: center;
}

.progress-bar .progress-fill {
    height: 6px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 3px;
    transition: width 0.3s ease;
    margin-bottom: 0.5rem;
}

.progress-text {
    font-size: 0.9rem;
    color: #666;
    font-weight: 500;
}

/* Assessment Results */
.assessment-results {
    background: #f8fafc;
    padding: 3rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.assessment-results h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #1a1a1a;
}

.score-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 3rem;
}

.score-circle {
    position: relative;
    width: 200px;
    height: 200px;
}

.score-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.score-number {
    font-size: 3rem;
    font-weight: 700;
    color: #667eea;
}

.score-label {
    font-size: 1.5rem;
    color: #666;
}

.maturity-level h4 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.maturity-level p {
    font-size: 1.1rem;
    color: #666;
}

.detailed-scores {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 3rem;
}

.score-category {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: white;
    border-radius: 8px;
}

.category-name {
    min-width: 200px;
    text-align: left;
    font-weight: 600;
    color: #1a1a1a;
}

.score-bar {
    flex: 1;
    height: 8px;
    background: #e2e8f0;
    border-radius: 4px;
    overflow: hidden;
}

.score-fill {
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 4px;
    transition: width 0.5s ease;
}

.score-value {
    min-width: 50px;
    text-align: right;
    font-weight: 600;
    color: #667eea;
}

.recommendations {
    text-align: left;
    margin-bottom: 3rem;
}

.recommendations h4 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.recommendation-item {
    padding: 1rem;
    background: white;
    border-radius: 8px;
    margin-bottom: 1rem;
    border-left: 4px solid #667eea;
}

.results-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Author Section */
.author-section {
    padding: 6rem 0;
    background: #f8fafc;
}

.author-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    align-items: start;
}

.author-image {
    text-align: center;
}

.image-placeholder {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    color: white;
    font-size: 6rem;
}

.author-credentials {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.credential {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.credential i {
    color: #667eea;
    font-size: 1.2rem;
}

.author-bio h3 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: #1a1a1a;
}

.author-title {
    font-size: 1.2rem;
    color: #667eea;
    font-weight: 600;
    margin-bottom: 2rem;
}

.bio-content p {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.expertise-areas {
    margin: 2rem 0;
}

.expertise-areas h4 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #1a1a1a;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.expertise-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.expertise-item i {
    color: #667eea;
    font-size: 1.2rem;
}

.achievements {
    margin: 2rem 0;
}

.achievements h4 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.achievements ul {
    list-style: none;
    padding: 0;
}

.achievements li {
    padding: 1rem;
    margin-bottom: 1rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    border-left: 4px solid #667eea;
}

.achievements strong {
    color: #1a1a1a;
}

.philosophy {
    margin: 2rem 0;
}

.philosophy h4 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.philosophy p {
    font-size: 1.1rem;
    line-height: 1.7;
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    border-left: 4px solid #667eea;
}

/* Speaking Section */
.speaking-section {
    padding: 6rem 0;
    background: white;
}

.speaking-intro {
    text-align: center;
    margin-bottom: 3rem;
}

.speaking-intro p {
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto;
}

.speaking-topics {
    margin-bottom: 4rem;
}

.speaking-topics h3 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
    color: #1a1a1a;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.topic-card {
    padding: 2rem;
    background: #f8fafc;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.topic-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.topic-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.topic-card h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.topic-card p {
    color: #666;
    line-height: 1.6;
}

.speaking-formats {
    margin-bottom: 4rem;
}

.speaking-formats h3 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
    color: #1a1a1a;
}

.formats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.format-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem;
    background: #f8fafc;
    border-radius: 12px;
}

.format-item i {
    color: #667eea;
    font-size: 2rem;
    margin-top: 0.5rem;
}

.format-item h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #1a1a1a;
}

.format-item p {
    color: #666;
    margin: 0;
    line-height: 1.6;
}

.booking-info {
    display: flex;
    justify-content: center;
}

.booking-card {
    max-width: 600px;
    padding: 3rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    color: white;
    text-align: center;
}

.booking-card h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.booking-card p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.booking-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
    text-align: left;
}

.feature {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.feature i {
    color: #a7f3d0;
}

.booking-card .btn {
    background: white;
    color: #667eea;
}

.booking-card .btn:hover {
    background: #f8fafc;
}

/* Blog Section */
.blog-section {
    padding: 6rem 0;
    background: #f8fafc;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.blog-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.blog-image {
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #00B2A9 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.blog-category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: rgba(255, 255, 255, 0.9);
    color: #667eea;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.blog-content {
    padding: 2rem;
}

.blog-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: #666;
}

.blog-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #1a1a1a;
    line-height: 1.4;
}

.blog-card p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.blog-link {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: gap 0.3s ease;
}

.blog-link:hover {
    gap: 1rem;
}

.blog-cta {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.blog-cta h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.blog-cta p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.newsletter-form {
    display: flex;
    gap: 1rem;
    max-width: 400px;
    margin: 0 auto;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
}

.newsletter-form input:focus {
    outline: none;
    border-color: #667eea;
}

/* Contact Section */
.contact-section {
    padding: 6rem 0;
    background: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: #1a1a1a;
}

.contact-info p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: #f8fafc;
    border-radius: 12px;
}

.contact-method i {
    color: #667eea;
    font-size: 1.5rem;
}

.contact-method h4 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
    color: #1a1a1a;
}

.contact-method p {
    color: #666;
    margin: 0;
}

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

.social-link {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.social-link:hover {
    transform: translateY(-3px);
}

.contact-form {
    background: #f8fafc;
    padding: 3rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #1a1a1a;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
}

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

/* Footer */
.footer {
    background: #1a1a1a;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: white;
}

.footer-section p {
    color: #ccc;
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #667eea;
}

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

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 1rem;
    text-align: center;
    color: #ccc;
}

.footer-bottom a {
    color: #667eea;
    text-decoration: none;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .book-overview {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .author-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .score-display {
        flex-direction: column;
        gap: 2rem;
    }

    .newsletter-form {
        flex-direction: column;
    }

    .results-actions {
        flex-direction: column;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .insights-grid,
    .topics-grid,
    .formats-grid {
        grid-template-columns: 1fr;
    }

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

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

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .book-cover {
        width: 250px;
        height: 320px;
    }

    .assessment-form,
    .contact-form {
        padding: 2rem;
    }

    .image-placeholder {
        width: 200px;
        height: 200px;
        font-size: 4rem;
    }
}