/* 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);
}

/* 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;
}

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

.book-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    background: var(--gray-light);
}

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

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

/* 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;
}

@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 {
    background: linear-gradient(135deg, var(--navy-dark) 0%, var(--royal-blue) 100%);
    color: var(--white);
    padding: 4rem 2rem;
    text-align: center;
}

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

.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;
}

.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;
}

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

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

.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 .btn {
    text-align: center;
}

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

    .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;
    }

    .section {
        padding: 3rem 0;
    }

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

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

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

    .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;
    }

    .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;
    }

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

    .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); }
}