/* Main Stylesheet */

/* Base Styles */
body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    transition: background-color var(--transition-base), color var(--transition-base);
}

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

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-family-heading);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

h1 {
    font-size: var(--font-size-4xl);
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

h4 {
    font-size: var(--font-size-xl);
}

h5 {
    font-size: var(--font-size-lg);
}

h6 {
    font-size: var(--font-size-base);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
}

a {
    color: var(--color-primary);
    transition: color var(--transition-fast);
}

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

/* Header */
.site-header {
    background-color: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    transition: background-color var(--transition-base), border-color var(--transition-base);
}

.main-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

.nav-brand .logo img {
    height: 40px;
    width: auto;
    display: block;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: var(--spacing-sm);
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-text-primary);
    transition: all var(--transition-base);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-links a {
    color: var(--color-text-primary);
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
    background-color: var(--color-bg-secondary);
    color: var(--color-primary);
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* Language Switcher */
.language-switcher {
    display: flex;
    gap: var(--spacing-sm);
}

.lang-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    opacity: 0.6;
    transition: opacity var(--transition-fast), background-color var(--transition-fast);
}

.lang-link:hover {
    opacity: 1;
    background-color: var(--color-bg-secondary);
}

.lang-link.active {
    opacity: 1;
    background-color: var(--color-bg-tertiary);
}

.lang-link img {
    width: 20px;
    height: 20px;
}

/* Theme Toggle */
.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-fast);
}

.theme-toggle:hover {
    background-color: var(--color-bg-secondary);
}

.theme-icon {
    width: 20px;
    height: 20px;
}

[data-theme="light"] .dark-icon {
    display: none;
}

[data-theme="dark"] .light-icon {
    display: none;
}

[data-theme="dark"] .theme-toggle {
    background-color: #111827;
}

[data-theme="dark"] .theme-toggle:hover {
    background-color: #1f2937;
}

[data-theme="dark"] .theme-toggle .theme-icon {
    filter: brightness(0) invert(1);
    opacity: 0.92;
}

/* Main Content */
.site-main {
    min-height: max(calc(100vh - 200px), 1000px);
    position: relative;
    width: 100%;
}

@media (min-width: 769px) {
    .site-main {
        will-change: transform;
    }
}

/* Hero Section */
.hero {
    padding: var(--spacing-4xl) 0;
    background: linear-gradient(135deg, #0f9189 0%, #10919a 100%);
    color: white;
    text-align: center;
}

.hero-brand {
    font-family: 'Ephesis', cursive;
    font-weight: 400;
    font-size: var(--font-size-5xl);
    color: white;
    margin-bottom: var(--spacing-md);
    word-spacing: 0.35em;
}

.hero-content h1 {
    font-family: var(--font-family-heading);
    font-weight: var(--font-weight-bold);
    color: white;
    font-size: var(--font-size-3xl);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-lg);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-tagline {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
    color: white;
}

.hero-description {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: rgba(255, 255, 255, 0.92);
    max-width: 720px;
    margin: 0 auto;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-2xl);
    color: rgba(255, 255, 255, 0.9);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: var(--font-weight-semibold);
    text-align: center;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background-color: var(--color-secondary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

/* Sections */
.features,
.products-section,
.about-content,
.faq-section,
.contact-section {
    padding: var(--spacing-4xl) 0;
}

.page-header {
    padding: var(--spacing-3xl) 0;
    text-align: center;
    background-color: var(--color-bg-secondary);
}

/* Grid Layouts */
.features-grid,
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.features-grid--products,
.products-grid--catalog {
    grid-template-columns: repeat(2, 1fr);
}

.features-grid--products {
    margin-top: var(--spacing-2xl);
    margin-bottom: 0;
}

/* Cards */
.feature-card,
.product-card {
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.feature-card-link,
.product-card-link {
    display: block;
    color: inherit;
    text-decoration: none;
    cursor: pointer;
    height: 100%;
}

.feature-card-link h3,
.product-card-link .product-title {
    color: var(--color-text-primary);
}

.feature-card-link .btn,
.product-card-link .btn {
    margin-top: var(--spacing-md);
}

.feature-card-link:hover,
.product-card-link:hover {
    color: inherit;
}

.feature-card:hover,
.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    margin-bottom: var(--spacing-lg);
}

.product-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
}

.product-image img,
.product-image picture,
.product-image video,
.product-main-image img,
.product-main-image picture,
.product-main-image video {
    display: block;
    width: 100%;
    height: auto;
}

.product-info h3 {
    margin-bottom: var(--spacing-sm);
}

.product-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.product-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.product-price {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

.product-status {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

.product-status.in-stock {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
}

.product-status.out-of-stock {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--color-error);
}

/* Product Detail */
.product-detail {
    padding: var(--spacing-4xl) 0;
}

.back-link {
    display: inline-block;
    margin-bottom: var(--spacing-xl);
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-3xl);
}

.product-main-image {
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.product-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.product-download {
    width: 100%;
    max-width: 420px;
}

.product-download.is-open .product-download-toggle,
.product-download-toggle[hidden] {
    display: none !important;
}

.product-download-hint,
.product-download-consent {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
}

.product-download-consent {
    margin-bottom: var(--spacing-lg);
}

.product-download-success {
    color: var(--color-text-primary);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-relaxed);
}

.product-download-error {
    color: var(--color-error);
    margin-bottom: var(--spacing-md);
    line-height: var(--line-height-relaxed);
}

.product-download-form button[disabled] {
    opacity: 0.7;
    cursor: not-allowed;
}

.product-detail-body {
    padding-bottom: var(--spacing-4xl);
}

.product-detail-body article h2 {
    font-size: var(--font-size-xl);
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-md);
}

.product-detail-body article p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: var(--line-height-relaxed);
}

.product-detail-body article ul {
    list-style: disc;
    margin-left: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.product-detail-body article li {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Contact Page */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-3xl);
}

.info-item {
    margin-bottom: var(--spacing-xl);
}

.info-item h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--spacing-md);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    text-align: left;
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    transition: background-color var(--transition-fast);
}

.faq-question:hover {
    background-color: var(--color-bg-secondary);
}

.faq-icon {
    font-size: var(--font-size-2xl);
    transition: transform var(--transition-base);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.faq-item.active .faq-answer {
    max-height: 1200px;
    padding: 0 var(--spacing-lg) var(--spacing-lg);
}

.faq-answer p+p {
    margin-top: var(--spacing-md);
}

.faq-answer code {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    font-family: var(--font-family-mono, ui-monospace, monospace);
    font-size: var(--font-size-sm);
    word-break: break-all;
}

.faq-cta {
    text-align: center;
    margin-top: var(--spacing-4xl);
    padding: var(--spacing-3xl);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-2xl);
}

/* Learn */
.learn-section,
.learn-article-section {
    padding: var(--spacing-4xl) 0;
}

.learn-empty {
    max-width: 40rem;
    margin: 0 auto;
    text-align: center;
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
}

.learn-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
    max-width: 960px;
    margin: 0 auto;
}

.learn-card {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-xl);
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
}

.learn-card-date,
.learn-article-date {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.learn-card-title {
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-xl);
    line-height: var(--line-height-tight);
}

.learn-card-title a {
    color: var(--color-text-primary);
    text-decoration: none;
}

.learn-card-title a:hover {
    color: var(--color-primary);
}

.learn-card-excerpt {
    flex: 1;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

.learn-card-link {
    align-self: flex-start;
}

.page-header--compact {
    padding-bottom: var(--spacing-2xl);
}

.learn-article-body {
    max-width: 720px;
    margin: 0 auto;
}

.learn-article-body p {
    margin-bottom: var(--spacing-lg);
    line-height: var(--line-height-relaxed);
}

.learn-article-body h2 {
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-2xl);
    line-height: var(--line-height-tight);
}

.learn-article-body h3 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-xl);
    line-height: var(--line-height-tight);
}

.learn-article-body ul {
    list-style: disc;
    margin: 0 0 var(--spacing-lg) var(--spacing-xl);
}

.learn-article-body li {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

.learn-article-body code {
    padding: 0.1em 0.35em;
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.9em;
}

/* Alerts */
.alert {
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

.alert-error {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--color-error);
    border: 1px solid var(--color-error);
}

/* Error Page */
.error-page {
    padding: var(--spacing-4xl) 0;
    text-align: center;
}

/* Download landing (magic link from email) */
.download-landing-page {
    padding-bottom: var(--spacing-4xl);
}

.download-landing-page .page-header {
    margin-bottom: var(--spacing-2xl);
}

.download-landing-page .product-detail-grid {
    align-items: center;
    margin-bottom: var(--spacing-3xl);
}

.download-landing-page .product-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
}

.download-landing-intro {
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-xl);
}

.download-landing-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.download-landing-note {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    background-color: var(--color-bg-tertiary);
    border-left: 4px solid var(--color-primary);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
}

.download-landing-release {
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.download-landing-filename {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    color: var(--color-text-primary);
}

.download-landing-separator {
    margin: 0 var(--spacing-xs);
}

.download-landing-panel {
    margin-bottom: var(--spacing-3xl);
    padding: var(--spacing-2xl);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    background-color: var(--color-bg-secondary);
    box-shadow: var(--shadow-sm);
}

.download-landing-panel h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
}

.download-landing-panel>p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.download-landing-panel code {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    font-family: var(--font-family-mono, ui-monospace, monospace);
    font-size: var(--font-size-sm);
    word-break: break-all;
}

.download-archive-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.download-archive-item {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--spacing-sm) var(--spacing-lg);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
}

.download-archive-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.download-archive-link {
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
}

.download-archive-link:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

.download-archive-note {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.download-cross-sell-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.download-cross-sell-card {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    height: 100%;
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.download-cross-sell-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.download-cross-sell-card .product-image {
    margin-bottom: 0;
}

.download-cross-sell-card h3 {
    margin: 0;
    font-size: var(--font-size-xl);
}

.download-cross-sell-card h3 a {
    color: var(--color-text-primary);
}

.download-cross-sell-card h3 a:hover {
    color: var(--color-primary);
}

.download-cross-sell-card p {
    flex: 1;
    margin: 0;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
}

.download-cross-sell-card .btn {
    align-self: flex-start;
}

.error-code {
    font-size: 6rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
}

/* Footer */
.site-footer {
    background-color: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    margin-top: var(--spacing-4xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-section h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.footer-legal {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

/* CTA Section */
.cta-section {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-bg-secondary);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

/* TouchMod intro (homepage) */
.touchmod-intro {
    padding: var(--spacing-3xl) 0 var(--spacing-4xl);
    background-color: var(--color-bg-primary);
}

.touchmod-intro article h2 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-lg);
}

.touchmod-intro article h3 {
    font-size: var(--font-size-xl);
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-md);
}

.touchmod-intro article p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: var(--line-height-relaxed);
}

.touchmod-intro article ul {
    list-style: disc;
    margin-left: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.touchmod-intro article li {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* Legal Content */
.legal-content {
    padding: var(--spacing-3xl) 0;
}

.content-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.legal-content article h2 {
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-md);
}

.legal-content article ul,
.legal-content article ol {
    list-style: disc;
    margin-left: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.legal-content article li {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}

/* Values Grid */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.value-item {
    padding: var(--spacing-xl);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-xl);
}