/* BookShelves Website Styles */

:root {
    --primary-color: #007AFF;
    --primary-dark: #005BBB;
    --secondary-color: #5856D6;
    --text-color: #1D1D1F;
    --text-secondary: #6E6E73;
    --bg-color: #FFFFFF;
    --bg-secondary: #F5F5F7;
    --border-color: #D2D2D7;
    --max-width: 1200px;
    --spacing: 1rem;
    --border-radius: 12px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 17px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex: 1;
    padding: 2rem 0;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-color);
}

h1 {
    font-size: 3rem;
    font-weight: 700;
}

h2 {
    font-size: 2.25rem;
    margin-top: 2.5rem;
}

h3 {
    font-size: 1.75rem;
    margin-top: 2rem;
}

h4 {
    font-size: 1.5rem;
}

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

a {
    color: var(--primary-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Header */
.site-header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: saturate(180%) blur(20px);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.navbar-brand .logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-color);
    text-decoration: none;
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-text {
    font-size: 1.5625rem;
}

.navbar-menu {
    display: flex;
    gap: 1.28rem;
    align-items: center;
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 400;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    text-decoration: none;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    text-decoration: none;
}

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

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Hero Section */
.hero {
    background: #f5f5f7;
    color: var(--text-color);
    padding: 3rem 0 3rem;
    text-align: center;
}

.hero h1 {
    color: var(--text-color);
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.hero .lead {
    font-size: 1.5rem;
    margin-bottom: 0;
    color: var(--text-secondary);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero .btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

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

/* Content */
.content {
    padding: 3rem 0;
}

.page {
    max-width: 800px;
}

.page-content {
    line-height: 1.8;
}

.page-content h2 {
    margin-top: 3rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-color);
}

.page-content h3 {
    margin-top: 2rem;
}

.page-content ul,
.page-content ol {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

.page-content li {
    margin-bottom: 0.5rem;
}

.page-content code {
    background-color: var(--bg-secondary);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
    font-size: 0.9em;
}

.page-content pre {
    background-color: var(--bg-secondary);
    padding: 1rem;
    border-radius: var(--border-radius);
    overflow-x: auto;
    margin-bottom: 1rem;
}

.page-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 1rem;
    margin-left: 0;
    color: var(--text-secondary);
    font-style: italic;
}

.page-meta {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* Footer */
.site-footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0 1.5rem;
    margin-top: 4rem;
}

.footer-content {
    text-align: center;
    margin-bottom: 1rem;
}

.footer-links-section {
    display: flex;
    justify-content: center;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    justify-content: center;
}

.footer-links a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.9rem;
}

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

.footer-links .separator {
    color: var(--text-secondary);
    user-select: none;
}

.footer-bottom {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.footer-bottom p {
    margin: 0.25rem 0;
}

.copyright {
    color: var(--text-secondary);
}

.disclaimer {
    color: var(--text-muted);
    opacity: 0.7;
}

/* App Store Badge */
.app-store-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: black;
    color: white;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.875rem;
}

.app-store-badge:hover {
    background-color: #333;
    text-decoration: none;
}

/* Responsive - Tablet */
@media (max-width: 1100px) and (min-width: 769px) {
    .container {
        padding: 0 2.5rem;
    }

    .hero-screenshots {
        padding-left: 2.5rem;
        padding-right: 2.5rem;
    }
}

/* Responsive - Mobile */
@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }

    .navbar {
        flex-direction: column;
        gap: 1rem;
    }

    .navbar-menu {
        gap: 0.64rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero .lead {
        font-size: 1.25rem;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    h3 {
        font-size: 1.5rem;
    }

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

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

/* Feature Cards */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem 4rem;
    margin: 3rem 0;
}

.feature-card {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    stroke: var(--text-color);
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.feature-content {
    flex: 1;
}

.feature-card h3 {
    font-size: 1.125rem;
    margin-top: 0;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-weight: 600;
}

.feature-card p {
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 0;
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* Download Badges */
.download-badges {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.download-badges-main {
    justify-content: center;
    gap: 1.5rem;
}

.download-badges-hero {
    justify-content: center;
    gap: 2rem;
    margin-top: 2.5rem;
}

.download-badges-footer {
    justify-content: center;
    gap: 1rem;
    margin: 3rem 0 0 0;
}

.badge-link {
    display: inline-block;
    transition: transform 0.2s ease;
}

.badge-link:hover {
    transform: scale(1.05);
}

.badge-link img {
    display: block;
    width: auto;
}

.download-badges:not(.download-badges-hero):not(.download-badges-footer) .badge-link img {
    height: 50px;
}

.download-badges-footer .badge-link img {
    height: 60px;
}

@media (max-width: 768px) {
    .download-badges {
        flex-direction: column;
        align-items: flex-start;
    }

    .download-badges-main {
        align-items: center;
    }
}

/* Social Icon Links */
.email-link,
.bluesky-link,
.mastodon-link,
.instagram-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.25rem;
    transition: all 0.2s ease;
}

.email-link svg,
.bluesky-link svg,
.mastodon-link svg,
.instagram-link svg {
    display: block;
    color: var(--text-color);
    transition: color 0.2s ease;
}

.email-link:hover svg {
    color: var(--primary-color);
}

.bluesky-link:hover svg {
    color: #1185fe;
}

.mastodon-link:hover svg {
    color: #6364ff;
}

.instagram-link:hover svg {
    color: #E1306C;
}

.email-link:hover,
.bluesky-link:hover,
.mastodon-link:hover,
.instagram-link:hover {
    text-decoration: none;
}

/* Hero Screenshots Gallery */
.hero-screenshots {
    background: #f5f5f7;
    padding: 2rem 1rem 4rem;
}

.hero-screenshots .screenshots-gallery {
    max-width: 1200px;
    margin: 0 auto;
}

.screenshots-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    align-items: center;
}

.screenshots-gallery img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    transition: transform 0.2s ease;
}

.screenshots-gallery img:hover {
    transform: scale(1.02);
}

@media (max-width: 1024px) {
    .screenshots-gallery {
        grid-template-columns: repeat(2, 1fr);
    }

    .screenshots-gallery img:nth-child(3) {
        display: none;
    }
}

@media (max-width: 640px) {
    .screenshots-gallery {
        grid-template-columns: 1fr;
    }

    .screenshots-gallery img:nth-child(2),
    .screenshots-gallery img:nth-child(3) {
        display: none;
    }

    .hero-screenshots {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border-color);
    padding: 16px;
    z-index: 1000;
    box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.1);
}

.cookie-banner-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.cookie-banner-text p {
    margin: 0;
    font-size: 14px;
    color: var(--text-color);
    line-height: 1.5;
}

.cookie-link {
    color: var(--primary-color);
    text-decoration: underline;
    font-weight: 500;
}

.cookie-banner-actions {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
}

.cookie-btn {
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.cookie-btn-primary {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.cookie-btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
}

.cookie-btn-secondary {
    background: transparent;
    color: #6b7280;
    border-color: #d1d5db;
}

.cookie-btn-secondary:hover {
    background: #f9fafb;
    color: var(--text-color);
}

/* Cookie Modal */
.cookie-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.cookie-modal-content {
    background: white;
    border-radius: 12px;
    max-width: 500px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.cookie-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 24px 16px;
    border-bottom: 1px solid var(--border-color);
}

.cookie-modal-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-color);
}

.cookie-modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: #6b7280;
    cursor: pointer;
    padding: 4px;
    line-height: 1;
    border-radius: 4px;
}

.cookie-modal-close:hover {
    background: #f3f4f6;
    color: var(--text-color);
}

.cookie-modal-body {
    padding: 24px;
}

.cookie-category {
    margin-bottom: 24px;
}

.cookie-category:last-child {
    margin-bottom: 0;
}

.cookie-category-header {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.cookie-category h4 {
    margin: 0 0 8px 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-color);
}

.cookie-category p {
    margin: 0;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.cookie-toggle {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
    margin-top: 2px;
}

.cookie-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.cookie-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #d1d5db;
    transition: 0.2s;
    border-radius: 24px;
}

.cookie-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.2s;
    border-radius: 50%;
}

input:checked + .cookie-slider {
    background-color: var(--primary-color);
}

input:checked + .cookie-slider:before {
    transform: translateX(20px);
}

input:disabled + .cookie-slider {
    opacity: 0.6;
    cursor: not-allowed;
}

.cookie-modal-footer {
    padding: 16px 24px 24px;
    border-top: 1px solid var(--border-color);
}

.cookie-modal-footer .cookie-btn {
    width: 100%;
    justify-content: center;
    display: flex;
}

/* Cookie Banner Mobile Responsive */
@media (max-width: 768px) {
    .cookie-banner-content {
        flex-direction: column;
        align-items: stretch;
        gap: 16px;
    }

    .cookie-banner-actions {
        justify-content: stretch;
    }

    .cookie-btn {
        flex: 1;
        text-align: center;
    }

    .cookie-modal {
        padding: 10px;
    }

    .cookie-category-header {
        gap: 12px;
    }
}