@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700&family=Open+Sans:wght@400;600&display=swap');

:root {
    --color-white: #ffffff;
    --color-dark-blue: #1a365d;
    --color-dark-pink: #9d174d;
    --color-light-blue: #e0f2fe;
    --color-light-pink: #fce7f3;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-gray-light: #f8fafc;
    --color-gray-border: #e2e8f0;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Open Sans', sans-serif;
    color: var(--color-text);
    background: var(--color-white);
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

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

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

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 15px 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-logo img {
    height: 75px;
    width: auto;
}

.navbar-menu {
    display: flex;
    gap: 30px;
    list-style: none;
}

.navbar-menu a {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.navbar-menu a:hover {
    color: var(--color-dark-pink);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-dark-blue);
}

/* Hero Section - Parallax */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, var(--color-light-blue) 0%, var(--color-white) 50%, var(--color-light-pink) 100%);
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero::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"><circle cx="50" cy="50" r="1" fill="%231a365d" opacity="0.05"/></svg>');
    background-size: 50px 50px;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 40px 20px;
}

.hero-logo {
    max-width: 350px;
    margin-bottom: 30px;
    animation: logoFloat 3s ease-in-out infinite;
}

@keyframes logoFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero h1 {
    font-size: 2.5rem;
    color: var(--color-dark-blue);
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 15px 40px;
    border-radius: 50px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-dark-blue) 0%, var(--color-dark-pink) 100%);
    color: var(--color-white);
    box-shadow: 0 4px 15px rgba(26, 54, 93, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(26, 54, 93, 0.4);
    color: var(--color-white);
}

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

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

.btn-small {
    padding: 10px 25px;
    font-size: 0.85rem;
}

/* How It Works Section - Parallax */
.how-it-works {
    padding: 120px 0;
    background: var(--color-white);
    position: relative;
}

.how-it-works::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(180deg, var(--color-light-pink) 0%, transparent 100%);
    opacity: 0.3;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    z-index: 1;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--color-dark-blue);
    margin-bottom: 15px;
}

.section-title p {
    font-size: 1.1rem;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    position: relative;
    z-index: 1;
}

.step-card {
    background: var(--color-white);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
}

.step-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-dark-blue) 0%, var(--color-dark-pink) 100%);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Montserrat', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 25px;
}

.step-card h3 {
    font-size: 1.25rem;
    color: var(--color-dark-blue);
    margin-bottom: 15px;
}

.step-card p {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

.step-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

/* Pricing Section */
.pricing {
    padding: 120px 0;
    background: linear-gradient(180deg, var(--color-gray-light) 0%, var(--color-white) 100%);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.pricing-card {
    background: var(--color-white);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
    position: relative;
    border: 2px solid transparent;
}

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

.pricing-card.featured {
    border-color: var(--color-dark-pink);
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-5px);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--color-dark-pink) 0%, var(--color-dark-blue) 100%);
    color: var(--color-white);
    padding: 5px 20px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.pricing-card h3 {
    font-size: 1.5rem;
    color: var(--color-dark-blue);
    margin-bottom: 10px;
}

.pricing-price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-dark-blue);
    margin: 20px 0;
}

.pricing-price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--color-text-light);
}

.pricing-features {
    list-style: none;
    margin: 30px 0;
    text-align: left;
}

.pricing-features li {
    padding: 10px 0;
    border-bottom: 1px solid var(--color-gray-border);
    color: var(--color-text-light);
    display: flex;
    align-items: center;
    gap: 10px;
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features li::before {
    content: '✓';
    color: var(--color-dark-pink);
    font-weight: bold;
}

/* Upload Section */
.upload-section {
    padding: 120px 0;
    background: var(--color-white);
}

.upload-area {
    max-width: 600px;
    margin: 0 auto;
    border: 3px dashed var(--color-gray-border);
    border-radius: 20px;
    padding: 60px 40px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-area:hover,
.upload-area.dragover {
    border-color: var(--color-dark-pink);
    background: var(--color-light-pink);
}

.upload-icon {
    font-size: 4rem;
    color: var(--color-dark-blue);
    margin-bottom: 20px;
}

.upload-area h3 {
    font-size: 1.5rem;
    color: var(--color-dark-blue);
    margin-bottom: 10px;
}

.upload-area p {
    color: var(--color-text-light);
    margin-bottom: 20px;
}

.file-input {
    display: none;
}

.file-list {
    margin-top: 30px;
    text-align: left;
}

.file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px;
    background: var(--color-gray-light);
    border-radius: 10px;
    margin-bottom: 10px;
}

.file-item .remove-file {
    color: var(--color-dark-pink);
    cursor: pointer;
    font-size: 1.2rem;
}

/* Flipbook Viewer */
.flipbook-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
}

.flipbook-wrapper {
    background: var(--color-gray-light);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

#flipbook {
    width: 100%;
    height: 600px;
}

.flipbook-controls {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

.flipbook-controls button {
    padding: 12px 30px;
    border: none;
    background: var(--color-dark-blue);
    color: var(--color-white);
    border-radius: 30px;
    cursor: pointer;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    transition: all 0.3s ease;
}

.flipbook-controls button:hover {
    background: var(--color-dark-pink);
    transform: translateY(-2px);
}

.page-indicator {
    font-family: 'Montserrat', sans-serif;
    color: var(--color-text-light);
    padding: 12px 20px;
}

/* Dashboard */
.dashboard {
    padding: 120px 0 60px;
    min-height: 100vh;
    background: var(--color-gray-light);
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.dashboard-header h1 {
    color: var(--color-dark-blue);
}

.subscription-badge {
    background: linear-gradient(135deg, var(--color-dark-blue) 0%, var(--color-dark-pink) 100%);
    color: var(--color-white);
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 600;
}

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.book-card {
    background: var(--color-white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

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

.book-thumbnail {
    height: 200px;
    background: linear-gradient(135deg, var(--color-light-blue) 0%, var(--color-light-pink) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--color-dark-blue);
}

.book-info {
    padding: 20px;
}

.book-info h3 {
    color: var(--color-dark-blue);
    margin-bottom: 10px;
}

.book-status {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.book-status.preview {
    background: var(--color-light-pink);
    color: var(--color-dark-pink);
}

.book-status.active {
    background: #d1fae5;
    color: #065f46;
}

.book-status.expired {
    background: #fee2e2;
    color: #991b1b;
}

.book-actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

/* Auth Pages */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-light-blue) 0%, var(--color-white) 50%, var(--color-light-pink) 100%);
    padding: 20px;
}

.auth-card {
    background: var(--color-white);
    border-radius: 20px;
    padding: 50px 40px;
    max-width: 450px;
    width: 100%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    text-align: center;
}

.auth-card img {
    max-width: 200px;
    margin-bottom: 30px;
}

.auth-card h1 {
    color: var(--color-dark-blue);
    margin-bottom: 10px;
    font-size: 1.75rem;
}

.auth-card p {
    color: var(--color-text-light);
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--color-dark-blue);
}

.form-group input {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid var(--color-gray-border);
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

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

/* Footer */
.footer {
    background: var(--color-dark-blue);
    color: var(--color-white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand img {
    max-width: 150px;
    margin-bottom: 15px;
}

.footer-brand p {
    opacity: 0.8;
    font-size: 0.9rem;
}

.footer-links h4 {
    margin-bottom: 20px;
    font-size: 1rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links a {
    color: var(--color-white);
    opacity: 0.8;
    font-size: 0.9rem;
    display: block;
    padding: 5px 0;
    transition: opacity 0.3s ease;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--color-light-pink);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    opacity: 0.7;
    font-size: 0.85rem;
}

/* Alerts & Messages */
.alert {
    padding: 15px 20px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-info {
    background: var(--color-light-blue);
    color: var(--color-dark-blue);
    border: 1px solid #bae6fd;
}

/* Embed Code Box */
.embed-box {
    background: var(--color-gray-light);
    border-radius: 10px;
    padding: 20px;
    margin-top: 20px;
}

.embed-box label {
    display: block;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--color-dark-blue);
}

.embed-box textarea,
.embed-box input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--color-gray-border);
    border-radius: 8px;
    font-family: monospace;
    font-size: 0.85rem;
    resize: none;
    background: var(--color-white);
}

.copy-btn {
    margin-top: 10px;
    padding: 8px 20px;
    background: var(--color-dark-blue);
    color: var(--color-white);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: background 0.3s ease;
}

.copy-btn:hover {
    background: var(--color-dark-pink);
}

/* Responsive */
@media (max-width: 768px) {
    .navbar-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    }

    .navbar-menu.active {
        display: flex;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .hero-logo {
        max-width: 250px;
    }

    .section-title h2 {
        font-size: 1.75rem;
    }

    .pricing-card.featured {
        transform: none;
    }

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

    #flipbook {
        height: 400px;
    }

    .dashboard-header {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .btn {
        padding: 12px 30px;
        font-size: 0.9rem;
    }

    .step-card {
        padding: 30px 20px;
    }

    .pricing-card {
        padding: 30px 20px;
    }

    .auth-card {
        padding: 30px 20px;
    }
}