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

:root {
    --primary-color: #1a1a2e;
    --secondary-color: #16213e;
    --accent-color: #d4af37;
    --text-light: #ffffff;
    --text-gray: #b0b0b0;
    --gradient-primary: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    --gradient-accent: linear-gradient(135deg, #d4af37 0%, #f4d03f 100%);
    --shadow-light: 0 4px 20px rgba(212, 175, 55, 0.1);
    --shadow-dark: 0 8px 40px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-light);
    background: var(--primary-color);
    overflow-x: hidden;
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition);
}

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

.logo h1 {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--accent-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-accent);
    transition: var(--transition);
}

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

.cta-button {
    background: var(--gradient-accent);
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    color: var(--primary-color) !important;
    font-weight: 600;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-light);
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-light);
    margin: 3px 0;
    transition: var(--transition);
}

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

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.8;
}

.hero-background::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(26, 26, 46, 0.8) 0%, rgba(22, 33, 62, 0.6) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: 0 2rem;
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    margin-bottom: 2rem;
    color: var(--text-gray);
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-quote {
    font-family: 'Playfair Display', serif;
    font-size: clamp(1rem, 2.5vw, 1.4rem);
    font-style: italic;
    margin-bottom: 3rem;
    color: var(--accent-color);
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-accent);
    color: var(--primary-color);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-light);
}

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

.btn-secondary:hover {
    background: var(--accent-color);
    color: var(--primary-color);
}

.btn-large {
    padding: 1.5rem 3rem;
    font-size: 1.2rem;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 30px;
    height: 30px;
    border-right: 2px solid var(--accent-color);
    border-bottom: 2px solid var(--accent-color);
    transform: rotate(45deg);
}

/* Sections */
.section-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2rem, 5vw, 3rem);
    text-align: center;
    margin-bottom: 3rem;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* About Section */
.about {
    padding: 6rem 0;
    background: var(--secondary-color);
}

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

.about-description {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2rem;
    color: var(--text-gray);
}

.features {
    display: grid;
    gap: 1.5rem;
}

.feature h3 {
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.feature p {
    color: var(--text-gray);
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: var(--shadow-dark);
}

/* Quotes Section */
.quotes {
    padding: 6rem 0;
    background: var(--primary-color);
}

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

.quote-card {
    background: var(--secondary-color);
    padding: 2rem;
    border-radius: 20px;
    border-left: 4px solid var(--accent-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.quote-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent 0%, rgba(212, 175, 55, 0.05) 100%);
    opacity: 0;
    transition: var(--transition);
}

.quote-card:hover::before {
    opacity: 1;
}

.quote-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-light);
}

.quote-card blockquote {
    font-family: 'Playfair Display', serif;
    font-size: 1.2rem;
    font-style: italic;
    line-height: 1.6;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.quote-card cite {
    color: var(--accent-color);
    font-weight: 600;
}

/* Why Read Section */
.why-read {
    padding: 6rem 0;
    background: var(--secondary-color);
}

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

.reason-card {
    text-align: center;
    padding: 2rem;
    background: var(--primary-color);
    border-radius: 20px;
    transition: var(--transition);
}

.reason-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-light);
}

.reason-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.reason-card h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.reason-card p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* Author Section */
.author {
    padding: 6rem 0;
    background: var(--primary-color);
}

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

.author-text h3 {
    color: var(--accent-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.author-text p {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.author-placeholder {
    width: 300px;
    height: 300px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Playfair Display', serif;
    font-size: 1.2rem;
    color: var(--accent-color);
    border: 3px solid var(--accent-color);
    margin: 0 auto;
}

/* Final CTA */
.final-cta {
    padding: 6rem 0;
    background: var(--gradient-primary);
    text-align: center;
}

.cta-content h2 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 1rem;
    color: var(--text-light);
}

.cta-content p {
    font-size: 1.2rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
}

.guarantee {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--accent-color);
}

/* Footer */
.footer {
    padding: 2rem 0;
    background: var(--primary-color);
    border-top: 1px solid var(--secondary-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-text p {
    color: var(--text-gray);
    font-size: 0.9rem;
}

.footer-links a {
    color: var(--accent-color);
    text-decoration: none;
    transition: var(--transition);
}

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

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--primary-color);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: var(--shadow-dark);
        padding: 2rem 0;
    }

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

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

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

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

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

    .btn {
        width: 100%;
        max-width: 300px;
    }

    .quotes-grid,
    .reasons-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        text-align: center;
        flex-direction: column;
    }
}

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

    .nav-container {
        padding: 1rem 15px;
    }

    .hero-content {
        padding: 0 1rem;
    }

    .about,
    .quotes,
    .why-read,
    .author,
    .final-cta {
        padding: 4rem 0;
    }

    .quote-card,
    .reason-card {
        padding: 1.5rem;
    }
}

/* Scroll animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

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