/* Willie Knight Books - Design System */

/* Color Variables */
:root {
    --navy-blue: #002244;
    --navy-dark: #041E42;
    --white: #FFFFFF;
    --silver: #869397;
    --royal-blue: #003594;
    --royal-dark: #012169;
    --gray: #C3CBD0;
    --gray-light: #E8EAED;
}

/* Typography */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;700;900&family=Lato:wght@300;400;700&display=swap');

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

body {
    font-family: 'Lato', sans-serif;
    line-height: 1.6;
    color: var(--navy-blue);
    background-color: var(--white);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    line-height: 1.2;
    color: var(--navy-dark);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }

p {
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: var(--royal-blue);
    transition: color 0.3s ease;
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Header & Navigation */
header {
    background: var(--navy-blue);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'Playfair Display', serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--white);
    font-weight: 400;
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

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

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    color: var(--white);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('https://images.unsplash.com/photo-1579546929518-9e396f3cc809?w=1920&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    z-index: 1;
}

.hero-background::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(4, 30, 66, 0.7) 0%, rgba(0, 53, 148, 0.7) 100%);
    z-index: 3;
}

.hero-content {
    position: relative;
    z-index: 4;
    text-align: center;
    padding: 2rem;
    max-width: 1100px;
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    font-size: 5.5rem;
    font-weight: 900;
    letter-spacing: 5px;
    margin-bottom: 1.5rem;
    color: var(--white);
    text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 300;
    letter-spacing: 3px;
    margin-bottom: 1rem;
    color: var(--silver);
    text-transform: uppercase;
}

.hero-companies {
    font-size: 1rem;
    font-weight: 400;
    letter-spacing: 2px;
    margin-bottom: 3rem;
    color: var(--silver);
    text-transform: uppercase;
}

.hero-tagline {
    font-size: 2rem;
    font-style: italic;
    margin-bottom: 3rem;
    color: var(--white);
    font-weight: 400;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-ctas {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-cta {
    display: inline-block;
    background: var(--white);
    color: var(--navy-blue);
    padding: 1.2rem 3rem;
    font-weight: 700;
    font-size: 1.1rem;
    border-radius: 50px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    white-space: nowrap;
}

.hero-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    background: var(--silver);
}

.hero-cta-secondary {
    background: transparent;
    border: 2px solid var(--white);
    color: var(--white);
}

.hero-cta-secondary:hover {
    background: var(--white);
    color: var(--navy-blue);
    box-shadow: 0 10px 25px rgba(255, 255, 255, 0.2);
}

.hero-message {
    margin-top: 3rem;
    padding-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-message-title {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: 3px;
    margin-bottom: 1rem;
    color: var(--white);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    text-transform: uppercase;
}

.hero-message-tagline {
    font-size: 1.4rem;
    font-weight: 400;
    font-style: italic;
    margin-bottom: 1.5rem;
    color: var(--white);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-message-text {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--white);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.hero-message-closing {
    font-size: 1.3rem;
    font-weight: 600;
    font-style: italic;
    color: var(--white);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background: var(--royal-blue);
    margin: 1rem auto 0;
}

/* Featured Books */
.featured-books {
    background: var(--gray-light);
    padding: 5rem 0;
}

.book-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.book-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.book-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

    .book-image {
        width: 100%;
        height: auto;
        max-height: 500px;
        object-fit: contain;
        object-position: center;
        background: var(--gray-light);
        display: block;
        padding: 1rem;
        box-sizing: border-box;
    }

    @media (max-width: 768px) {
        .book-image {
            padding: 0.75rem;
            max-height: 400px;
        }
    }

    @media (max-width: 480px) {
        .book-image {
            padding: 0.5rem;
            max-height: 350px;
        }
    }

.book-info {
    padding: 2rem;
}

.book-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.book-description {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.btn {
    display: inline-block;
    background: var(--royal-blue);
    color: var(--white);
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 700;
    transition: background 0.3s ease, transform 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    background: var(--navy-blue);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--royal-blue);
    color: var(--royal-blue);
}

.btn-secondary:hover {
    background: var(--royal-blue);
    color: var(--white);
}

/* Intro Section */
.welcome {
    background: var(--white);
    padding: 4rem 0;
}

.welcome-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--navy-blue);
}

.welcome-title {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    color: var(--navy-dark);
    letter-spacing: 2px;
}

.welcome-subtitle {
    font-size: 1.4rem;
    margin-bottom: 2rem;
    color: var(--royal-blue);
    font-style: italic;
}

.welcome-content p {
    margin-bottom: 1.2rem;
    text-align: left;
}

.welcome-content p strong {
    color: var(--navy-dark);
}

.welcome-highlight {
    text-align: center !important;
    font-size: 1.2rem;
    margin: 1.5rem 0 !important;
}

.welcome-list {
    text-align: left;
    max-width: 600px;
    margin: 1.5rem auto;
    list-style: none;
    padding: 0;
}

.welcome-list li {
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
    padding-left: 0;
}

.welcome-tagline {
    text-align: center !important;
    font-size: 1.3rem;
    margin-top: 2.5rem !important;
    color: var(--royal-blue);
    font-style: italic;
}

.intro {
    background: var(--white);
}

.intro-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    font-size: 1.2rem;
    line-height: 1.8;
}

/* Author Message Section */
.author-message {
    background: linear-gradient(135deg, rgba(4, 30, 66, 0.05) 0%, rgba(0, 53, 148, 0.05) 100%);
    padding: 4rem 0;
}

.author-message-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: left;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--navy-blue);
    padding: 0 2rem;
}

.author-message-title {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--navy-dark);
    text-align: center;
    letter-spacing: 1px;
}

.author-message-content p {
    margin-bottom: 1.2rem;
}

.author-purpose {
    text-align: center !important;
    font-size: 1.2rem;
    margin: 1rem 0 !important;
    color: var(--royal-blue);
}

.author-list {
    max-width: 700px;
    margin: 1.5rem auto;
    list-style: none;
    padding: 0;
    text-align: left;
}

.author-list li {
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
    padding-left: 1.5rem;
    position: relative;
}

.author-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--royal-blue);
    font-weight: bold;
    font-size: 1.3rem;
}

.author-highlight {
    text-align: center !important;
    font-size: 1.3rem;
    margin: 2rem 0 !important;
    color: var(--navy-dark);
    font-style: italic;
}

.author-signature {
    text-align: right !important;
    font-size: 1.3rem;
    font-style: italic;
    margin-top: 2.5rem !important;
    color: var(--royal-blue);
    font-weight: 600;
}

/* Newsletter Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: var(--white);
    margin: 10% auto;
    padding: 3rem;
    border-radius: 20px;
    max-width: 600px;
    position: relative;
    animation: slideDown 0.3s ease;
}

/* Retailer Modal */
.retailer-modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    z-index: 2500;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.retailer-modal.show {
    display: flex;
}

.retailer-modal-content {
    background: var(--white);
    border-radius: 24px;
    max-width: 1100px;
    width: 100%;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
    position: relative;
    overflow: hidden;
    animation: fadeIn 0.4s ease;
}

    .retailer-close {
        position: absolute;
        top: 1.2rem;
        right: 1.5rem;
        background: transparent;
        border: none;
        font-size: 2.5rem;
        line-height: 1;
        color: var(--navy-dark);
        cursor: pointer;
        transition: transform 0.2s ease;
        z-index: 10;
        padding: 0.5rem;
        min-width: 44px;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

.retailer-close:hover {
    transform: rotate(90deg);
}

.retailer-layout {
    display: flex;
    gap: 2.5rem;
    padding: 3rem;
}

.retailer-cover {
    flex: 0 0 280px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.retailer-cover img {
    width: 100%;
    max-width: 280px;
    border-radius: 18px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.25);
}

.retailer-body {
    flex: 1;
}

.retailer-body h2 {
    font-size: 2.2rem;
    margin-bottom: 0.5rem;
}

.retailer-subtitle {
    color: #5f6b77;
    margin-bottom: 2rem;
}

.retailer-section {
    margin-bottom: 2rem;
}

.retailer-section h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--royal-blue);
}

.retailer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.8rem;
}

.retailer-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--gray-light);
    padding: 0.9rem 1.2rem;
    border-radius: 12px;
    font-weight: 600;
    color: var(--navy-dark);
    box-shadow: inset 0 0 0 1px rgba(0, 34, 68, 0.08);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.retailer-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
}

.retailer-btn {
    background: var(--royal-blue);
    color: var(--white);
    padding: 0.4rem 1.1rem;
    border-radius: 999px;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

@keyframes slideDown {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.close {
    position: absolute;
    right: 1.5rem;
    top: 1.5rem;
    font-size: 2rem;
    font-weight: bold;
    color: var(--navy-blue);
    cursor: pointer;
    transition: transform 0.3s ease;
}

.close:hover {
    transform: rotate(90deg);
}

.modal-title {
    text-align: center;
    margin-bottom: 1.5rem;
}

.modal-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

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

.form-group label {
    margin-bottom: 0.5rem;
    font-weight: 700;
    color: var(--navy-dark);
}

.form-group input {
    padding: 1rem;
    border: 2px solid var(--gray);
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--royal-blue);
}

/* About Page */
.about-hero {
    position: relative;
    background: linear-gradient(135deg, rgba(4, 30, 66, 0.92) 0%, rgba(0, 53, 148, 0.88) 100%);
    color: var(--white);
    padding: 6rem 0;
    overflow: hidden;
}

.about-hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top left, rgba(134, 147, 151, 0.4), transparent 55%);
    pointer-events: none;
}

.about-hero-content {
    position: relative;
    display: grid;
    grid-template-columns: 420px 1fr;
    gap: 4rem;
    align-items: center;
}

.about-hero-photo {
    height: 100%;
    border-radius: 30px;
    overflow: hidden;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.25);
}

.about-hero-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.about-hero-text h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.about-hero-subtitle {
    font-size: 1.4rem;
    letter-spacing: 2px;
    color: var(--silver);
    margin-bottom: 1.5rem;
}

.about-hero-description {
    font-size: 1.15rem;
    line-height: 1.9;
    margin-bottom: 2.5rem;
    color: rgba(255, 255, 255, 0.85);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 3rem 0;
}

.about-profile {
    display: flex;
    gap: 3rem;
    align-items: center;
    margin-bottom: 3rem;
}

.about-photo {
    flex: 0 0 320px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.18);
}

.about-photo img {
    width: 100%;
    height: auto;
    display: block;
}

.bio-section {
    margin-bottom: 3rem;
    line-height: 1.8;
    font-size: 1.1rem;
}

.quote-carousel {
    background: var(--gray-light);
    padding: 3rem;
    border-radius: 15px;
    margin: 3rem 0;
    text-align: center;
}

.quote-text {
    font-size: 1.5rem;
    font-style: italic;
    color: var(--navy-dark);
    margin-bottom: 1rem;
    font-family: 'Playfair Display', serif;
}

.quote-author {
    color: var(--royal-blue);
    font-weight: 700;
}

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

.venture-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.venture-card:hover {
    transform: translateY(-5px);
}

.venture-title {
    color: var(--royal-blue);
    margin-bottom: 1rem;
}

/* Books Page */
.books-hero {
    background: var(--navy-blue);
    color: var(--white);
    padding: 4rem 2rem;
    text-align: center;
}

.books-hero h1 {
    color: var(--white);
    font-size: 3.2rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    text-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

.books-hero-subtitle {
    margin-top: 1rem;
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.9);
    letter-spacing: 1px;
}

.book-catalog {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 2.5rem;
    padding: 3rem 0;
}

/* Contact Page */
.contact-hero {
    background: var(--navy-blue);
    color: var(--white);
    padding: 4rem 2rem;
    text-align: center;
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem 0;
}

.contact-form {
    background: var(--gray-light);
    padding: 3rem;
    border-radius: 15px;
    margin-bottom: 3rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--gray);
    border-radius: 10px;
    font-size: 1rem;
    font-family: 'Lato', sans-serif;
    resize: vertical;
    min-height: 150px;
}

textarea:focus {
    outline: none;
    border-color: var(--royal-blue);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.social-link {
    background: var(--royal-blue);
    color: var(--white);
    padding: 1rem 2rem;
    border-radius: 50px;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: transform 0.3s ease, background 0.3s ease;
}

.social-link:hover {
    transform: translateY(-3px);
    background: var(--navy-blue);
}

/* Footer */
footer {
    background: var(--navy-dark);
    color: var(--white);
    padding: 3rem 2rem 2rem;
    margin-top: 5rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--white);
    margin-bottom: 1rem;
}

.footer-section a {
    color: var(--silver);
    display: block;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--white);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--silver);
}

/* Video Embed */
.video-container {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: 15px;
    margin: 2rem 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.watch-section {
    background: var(--gray-light);
    padding: 5rem 0;
}

.watch-title {
    text-align: center;
    margin-bottom: 2rem;
}

.watch-subtext {
    text-align: center;
    margin-top: 1.5rem;
    color: #666;
}

.legacy-section {
    background: var(--gray-light);
}

.legacy-title {
    text-align: center;
    margin-bottom: 2rem;
}

.legacy-text {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    color: #555;
    line-height: 1.8;
}

.legacy-actions {
    text-align: center;
    margin-top: 2rem;
}

.beyond-cta-section {
    background: var(--navy-dark);
    color: var(--white);
}

.beyond-cta-title {
    text-align: center;
    margin-bottom: 1.5rem;
}

.beyond-cta-text {
    max-width: 800px;
    margin: 0 auto 2rem;
    line-height: 1.8;
    color: var(--silver);
    text-align: center;
}

.beyond-cta-actions {
    text-align: center;
}

/* Individual Book Product Page */
.product-hero {
    background: linear-gradient(135deg, var(--navy-dark) 0%, var(--royal-blue) 100%);
    color: var(--white);
    padding: 4rem 2rem;
    text-align: center;
}

.product-hero-secondary {
    background: linear-gradient(135deg, rgba(134, 147, 151, 0.35) 0%, rgba(4, 30, 66, 0.9) 100%);
}

.product-hero-tertiary {
    background: linear-gradient(135deg, rgba(0, 53, 148, 0.85) 0%, rgba(1, 33, 105, 0.95) 100%);
}

.product-hero h1 {
    color: var(--white);
}

.product-detail {
    max-width: 1100px;
    margin: 0 auto;
    padding: 3rem 0;
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: start;
}

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

.product-image {
    width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.product-image-back {
    margin-top: 0;
}

.product-info h1 {
    margin-bottom: 1rem;
}

.product-description {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.purchase-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

.purchase-options h3 {
    margin-bottom: 0.5rem;
}

.purchase-options .btn {
    text-align: center;
}

/* Responsive Design */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .nav-links {
        flex-direction: column;
        gap: 0.75rem;
        width: 100%;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        display: block;
        padding: 0.75rem 0;
        min-height: 44px;
    }

    .hero-title {
        font-size: 3rem;
        letter-spacing: 3px;
    }

    .hero-subtitle {
        font-size: 1.1rem;
        letter-spacing: 2px;
    }

    .hero-companies {
        font-size: 0.85rem;
        letter-spacing: 1.5px;
    }

    .hero-tagline {
        font-size: 1.3rem;
    }

    .hero-ctas {
        flex-direction: column;
        align-items: center;
    }

    .hero-cta {
        width: 100%;
        max-width: 280px;
    }

    .hero-message {
        margin-top: 2rem;
        padding-top: 2rem;
    }

    .hero-message-title {
        font-size: 1.8rem;
        letter-spacing: 2px;
    }

    .hero-message-tagline {
        font-size: 1.2rem;
    }

    .hero-message-text {
        font-size: 1rem;
        padding: 0 1rem;
    }

    .hero-message-closing {
        font-size: 1.1rem;
    }

    .welcome {
        padding: 2.5rem 0;
    }

    .welcome-content {
        padding: 0 1rem;
        font-size: 1rem;
    }

    .welcome-title {
        font-size: 2rem;
        letter-spacing: 1px;
    }

    .welcome-subtitle {
        font-size: 1.2rem;
    }

    .welcome-highlight {
        font-size: 1.1rem !important;
    }

    .welcome-tagline {
        font-size: 1.1rem !important;
    }

    .welcome-list {
        max-width: 100%;
        padding: 0 1rem;
    }

    .welcome-list li {
        font-size: 1rem;
    }

    .author-message {
        padding: 2.5rem 0;
    }

    .author-message-content {
        padding: 0 1rem;
        font-size: 1rem;
    }

    .author-message-title {
        font-size: 2rem;
    }

    .author-purpose {
        font-size: 1.1rem !important;
    }

    .author-list {
        max-width: 100%;
        padding: 0;
    }

    .author-list li {
        font-size: 1rem;
    }

    .author-highlight {
        font-size: 1.1rem !important;
    }

    .author-signature {
        font-size: 1.1rem !important;
    }

    .section {
        padding: 3rem 0;
    }

    .book-grid,
    .book-catalog,
    .ventures-grid {
        grid-template-columns: 1fr;
    }

    .product-hero,
    .product-hero-secondary,
    .product-hero-tertiary {
        padding: 3rem 1.5rem;
    }

    .product-hero h1,
    .product-hero-secondary h1,
    .product-hero-tertiary h1 {
        font-size: 2.5rem;
    }

    .product-detail {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 2rem 1rem;
    }

    .product-images {
        max-width: 100%;
    }

    .product-info {
        padding: 0;
    }

    .video-container {
        padding-bottom: 56.25%;
    }

    .video-container iframe {
        height: 100%;
    }

    .about-hero-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        text-align: center;
    }

    .about-hero-text h1 {
        font-size: 3rem;
    }

    .about-hero-photo {
        max-width: 420px;
        margin: 0 auto;
    }

    .support-hero h1 {
        font-size: 2.4rem;
    }

    .support-hero-description {
        font-size: 1rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .retailer-layout {
        flex-direction: column;
        align-items: center;
        padding: 2.5rem;
    }

    .retailer-cover {
        flex: none;
        margin-bottom: 1.5rem;
    }

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

    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    header {
        padding: 1rem;
    }

    nav {
        gap: 0.75rem;
    }

    .logo {
        font-size: 1.5rem;
    }

    .nav-links a {
        font-size: 1rem;
    }

    .hero-title {
        font-size: 2.2rem;
        letter-spacing: 2px;
    }

    .hero-subtitle {
        font-size: 0.95rem;
        letter-spacing: 1.5px;
    }

    .hero-companies {
        font-size: 0.75rem;
        letter-spacing: 1px;
    }

    .hero-tagline {
        font-size: 1.1rem;
    }

    .hero-cta {
        padding: 1rem 2rem;
        font-size: 1rem;
        min-height: 44px;
    }

    .hero-message {
        margin-top: 1.5rem;
        padding-top: 1.5rem;
    }

    .hero-message-title {
        font-size: 1.5rem;
        letter-spacing: 1.5px;
    }

    .hero-message-tagline {
        font-size: 1rem;
    }

    .hero-message-text {
        font-size: 0.95rem;
        padding: 0 0.5rem;
    }

    .hero-message-closing {
        font-size: 1rem;
    }

    .author-message {
        padding: 2rem 0;
    }

    .author-message-content {
        padding: 0 0.5rem;
        font-size: 0.95rem;
    }

    .author-message-title {
        font-size: 1.8rem;
    }

    .author-purpose {
        font-size: 1rem !important;
    }

    .author-list li {
        font-size: 0.95rem;
    }

    .author-highlight {
        font-size: 1rem !important;
    }

    .author-signature {
        font-size: 1rem !important;
    }

    .btn {
        min-height: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .book-card .btn {
        width: 100%;
    }

    .modal-content {
        padding: 2rem 1.5rem;
        margin: 20% 5%;
    }

    .about-hero-text h1 {
        font-size: 2.4rem;
    }

    .about-hero-subtitle {
        font-size: 1.1rem;
    }

    .about-hero-description {
        font-size: 1.05rem;
    }

    .product-hero,
    .product-hero-secondary,
    .product-hero-tertiary {
        padding: 2.5rem 1rem;
    }

    .product-hero h1,
    .product-hero-secondary h1,
    .product-hero-tertiary h1 {
        font-size: 2rem;
        line-height: 1.2;
    }

    .product-detail {
        padding: 1.5rem 0.5rem;
        gap: 1.5rem;
    }

    .product-image {
        border-radius: 10px;
    }

    .product-description {
        font-size: 1rem;
    }

    .purchase-options {
        gap: 0.75rem;
    }

    .purchase-options .btn {
        width: 100%;
        padding: 0.875rem 1.5rem;
        font-size: 0.95rem;
    }

    .retailer-modal {
        padding: 0.5rem;
    }

    .retailer-modal-content {
        max-width: 100%;
        margin: 5% 2%;
        border-radius: 16px;
        max-height: 90vh;
        overflow-y: auto;
        position: relative;
    }

    .retailer-close {
        top: 0.75rem;
        right: 0.75rem;
        font-size: 2rem;
        min-width: 40px;
        min-height: 40px;
    }

    .retailer-layout {
        padding: 1.5rem 1rem;
        flex-direction: column;
    }

    .retailer-cover {
        max-width: 200px;
        margin: 0 auto 1.5rem;
    }

    .retailer-cover img {
        width: 100%;
        height: auto;
    }

    .retailer-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .retailer-link {
        padding: 0.875rem 1rem;
        font-size: 0.9rem;
    }

    .video-container {
        padding-bottom: 56.25%;
        margin: 1rem 0;
    }

    .video-container iframe {
        border-radius: 8px;
    }

    .social-links {
        flex-direction: column;
        align-items: stretch;
    }

    .social-link {
        justify-content: center;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.8s ease-out;
}

/* Loading States */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--white);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.quote-highlight {
    text-align: center;
    max-width: 720px;
    margin: 4rem auto;
    padding: 3rem 2rem;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(134, 147, 151, 0.2));
    border-radius: 24px;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.15);
    position: relative;
    overflow: hidden;
}

.quote-highlight::before {
    content: '\201C';
    position: absolute;
    top: -40px;
    left: 30px;
    font-size: 10rem;
    color: rgba(255, 255, 255, 0.15);
    font-family: 'Playfair Display', serif;
}

.quote-text {
    font-family: 'Playfair Display', serif;
    font-size: 2.2rem;
    line-height: 1.4;
    color: var(--navy-dark);
    margin-bottom: 1.5rem;
}

.quote-author {
    font-size: 1.2rem;
    letter-spacing: 2px;
    color: var(--royal-blue);
    text-transform: uppercase;
}

.support-btn {
    margin-top: 2rem;
    display: inline-block;
}

.support-hero {
    position: relative;
    background: linear-gradient(135deg, rgba(4, 30, 66, 0.95) 0%, rgba(0, 53, 148, 0.85) 100%);
    color: var(--white);
    padding: 6rem 0;
    overflow: hidden;
}

.support-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(134, 147, 151, 0.4) 0%, transparent 70%);
}

.support-hero-content {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.support-hero h1 {
    font-size: 3.8rem;
    margin-bottom: 1rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--white);
}

.support-hero-subtitle {
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 1.5rem;
    letter-spacing: 1px;
}

.support-hero-description {
    font-size: 1.15rem;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2.5rem;
}

.support-hero-ctas {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.support-card {
    background: var(--white);
    border-radius: 18px;
    padding: 2.5rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
    height: 100%;
}

.support-card h3 {
    color: var(--royal-blue);
    margin-bottom: 1rem;
}

.support-options {
    background: linear-gradient(135deg, rgba(4, 30, 66, 0.05) 0%, rgba(134, 147, 151, 0.1) 100%);
}

.support-options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.support-option {
    background: var(--white);
    border-radius: 18px;
    padding: 2.5rem;
    box-shadow: 0 18px 35px rgba(0, 0, 0, 0.1);
    text-align: left;
}

.support-option h3 {
    color: var(--navy-dark);
    margin-bottom: 1rem;
}

.support-impact {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.impact-stat {
    background: var(--white);
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
    text-align: center;
}

.impact-stat h3 {
    color: var(--royal-blue);
    margin-bottom: 0.8rem;
}

.support-testimonials {
    background: radial-gradient(circle at top, rgba(0, 53, 148, 0.08), transparent 65%);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.testimonial-card {
    background: var(--white);
    border-radius: 18px;
    padding: 2.5rem;
    box-shadow: 0 18px 35px rgba(0, 0, 0, 0.12);
}

.testimonial-quote {
    font-style: italic;
    line-height: 1.8;
    margin-bottom: 1.2rem;
}

.testimonial-author {
    font-weight: 700;
    color: var(--royal-blue);
}

.support-cta {
    background: linear-gradient(135deg, rgba(4, 30, 66, 0.92) 0%, rgba(0, 53, 148, 0.88) 100%);
    color: var(--white);
}

.support-cta-card {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
    padding: 3.5rem 3rem;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.05);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.2);
    color: var(--white);
}

.support-cta-card h2 {
    color: var(--white);
    margin-bottom: 1rem;
}

.support-cta-card p {
    color: rgba(255, 255, 255, 0.85);
}

.support-cta-actions {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.support-impact-section {
    background: var(--gray-light);
}

.product-hero-secondary h1,
.product-hero-tertiary h1 {
    color: var(--white);
}