/* Default theme: Steve Jobs' Minimalist Design */
:root {
    --color-primary: #2563EB;
    --color-secondary: #FFFFFF;
    --color-accent: #3B82F6;
    --color-text-primary: #111827;
    --color-text-secondary: #4B5563;
    --color-text-light: #6B7280;
    --color-bg: #FFFFFF;
    --color-card-bg: #F8FAFC;
    --color-border: #E2E8F0;
    --color-hover: #EFF6FF;
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-error: #EF4444;
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-pill: 30px;
}

/* White Theme */
body.theme-minimalist {
    --color-primary: #2563EB;
    --color-secondary: #FFFFFF;
    --color-accent: #3B82F6;
    --color-text-primary: #111827;
    --color-text-secondary: #4B5563;
    --color-text-light: #6B7280;
    --color-bg: #FFFFFF;
    --color-card-bg: #F8FAFC;
    --color-border: #E2E8F0;
    --color-hover: #EFF6FF;
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-error: #EF4444;
}

body.theme-minimalist {
    background: var(--color-bg);
}

body.theme-minimalist .hero {
    background: var(--color-primary);
    position: relative;
}

body.theme-minimalist .hero-title, body.theme-minimalist .hero-subtitle {
    color: white;
    font-weight: 700;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
    text-shadow: none;
}

body.theme-minimalist .section-title h2 {
    color: var(--color-text-primary);
    font-weight: 700;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
    display: inline-block;
}

body.theme-minimalist .section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 3px;
    background: var(--color-accent);
    border-radius: 2px;
}

body.theme-minimalist .feature-card, body.theme-minimalist .product-card, body.theme-minimalist .support-info {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
}

body.theme-minimalist .feature-card h3, body.theme-minimalist .product-card h3, body.theme-minimalist .support-info h3 {
    color: var(--color-text-primary);
    font-weight: 700;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
    display: inline-block;
}

body.theme-minimalist .feature-card p, body.theme-minimalist .product-card p, body.theme-minimalist .support-info p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

body.theme-minimalist .product-features li, body.theme-minimalist .pricing-features li, body.theme-minimalist .purchase-notes li {
    color: var(--color-text-secondary);
    position: relative;
    padding-left: 2rem;
}

body.theme-minimalist .product-features i, body.theme-minimalist .pricing-features i {
    color: var(--color-accent);
    position: absolute;
    left: 0;
    top: 0.5rem;
    font-size: 1.2rem;
}

body.theme-minimalist .nav-link {
    color: var(--color-text-primary);
    font-weight: 600;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding: 0.5rem 1rem;
}

body.theme-minimalist .nav-brand h1 {
    color: var(--color-text-primary);
    font-weight: 700;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.theme-minimalist .logo i {
    color: var(--color-accent);
    font-size: 1.8rem;
}

body.theme-minimalist .btn {
    color: var(--color-text-primary);
    font-weight: 600;
    border-width: 1px;
    border-radius: var(--border-radius-pill);
    padding: 0.75rem 2rem;
}

body.theme-minimalist .btn-primary {
    background: var(--color-accent);
    color: white;
    border: none;
    text-shadow: none;
}

body.theme-minimalist .btn-secondary {
    background: transparent;
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
}

/* Fix for hero CTA secondary button text color */
body.theme-minimalist .hero .cta-buttons .btn-secondary {
    color: white;
    border-color: white;
    background: transparent;
}

body.theme-minimalist .pricing-card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
}

body.theme-minimalist .pricing-card.featured {
    border-color: var(--color-accent);
}

body.theme-minimalist .popular-badge {
    background: var(--color-accent);
    color: white;
    font-weight: 600;
}

body.theme-minimalist .purchase-notes {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
}

body.theme-minimalist .purchase-notes h3 {
    color: var(--color-text-primary);
    font-weight: 600;
}

body.theme-minimalist .language-select {
    color: var(--color-text-primary);
    background: var(--color-secondary);
    border-color: var(--color-border);
}

body.theme-minimalist .header {
    background: white;
    border-bottom: 1px solid var(--color-border);
}

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

body {
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    font-weight: 400;
    line-height: 1.8;
    color: var(--color-text-primary);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
}

/* Default backgrounds for Hero and Pricing sections */
.hero {
    background: var(--color-primary);
}

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

/* Header Styles - Minimalist Design */
.header {
    background: white;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
}

/* Logo Design */
.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo i {
    font-size: 2.8rem;
    color: var(--color-accent);
}

/* Nav Brand */
.nav-brand h1 {
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--color-primary);
    letter-spacing: -1px;
    font-family: 'Inter', sans-serif;
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    gap: 2.5rem;
    align-items: center;
    list-style: none;
    font-weight: 600;
    letter-spacing: 1px;
}

.nav-link {
    color: var(--color-text-primary);
    text-decoration: none;
    font-weight: 550;
    padding: 0.8rem 0;
    font-size: 15px;
    letter-spacing: 0.5px;
    font-family: 'Inter', sans-serif;
    display: inline-block;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-text-primary);
}

/* Language Selector */
.language-select {
    padding: 0.5rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    background: white;
    color: var(--color-text-primary);
    font-size: 0.9rem;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%234a5568' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    padding-right: 2rem;
}

/* Button Styles */
.btn {
    padding: 14px 30px;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    border: 2px solid transparent;
    cursor: pointer;
    display: inline-block;
    text-align: center;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    font-family: 'Inter', sans-serif;
    background: var(--color-primary);
    color: white;
    transition: none;
}

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

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

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

.btn-large {
    padding: 16px 40px;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 1px;
}

/* Hero Section - Minimalist Design */
.hero {
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 60px 20px;
    position: relative;
    background: var(--color-primary);
}

/* Hero Content */
.hero-content {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

/* Hero Title - Eye-catching Design */
.hero-title {
    font-size: clamp(3.5rem, 8vw, 6rem);
    font-weight: 900;
    margin-bottom: 2rem;
    color: white;
    line-height: 1.1;
    letter-spacing: -1px;
    font-family: 'Inter', sans-serif;
    padding: 0;
    text-transform: none;
}

/* Hero Subtitle */
.hero-subtitle {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    margin: 0 auto 3rem;
    color: white;
    max-width: 900px;
    font-weight: 400;
    line-height: 1.6;
    text-align: center;
    font-family: 'Inter', sans-serif;
}

/* CTA Buttons - Unique Design */
.cta-buttons {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 0;
}

.cta-buttons .btn {
    padding: 16px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--border-radius-md);
    letter-spacing: 0.5px;
    text-transform: none;
    min-width: 160px;
    border: none;
    background: white;
    color: var(--color-primary);
}

/* Primary Button */
.cta-buttons .btn-primary {
    background: white;
    color: var(--color-primary);
    border: none;
    font-weight: 700;
}

/* Secondary Button */
.cta-buttons .btn-secondary {
    display: inline-block;
    background: transparent;
    color: white;
    border: 2px solid white;
    font-weight: 700;
    opacity: 1;
}

/* Features Section */
.features {
    padding: 8rem 0;
    background: var(--color-bg);
    position: relative;
}

.section-title {
    text-align: center;
    margin-bottom: 5rem;
    position: relative;
}

.section-title h2 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    color: var(--color-text-primary);
    margin-bottom: 1.5rem;
    font-weight: 800;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 5px;
    background: var(--color-accent);
    border-radius: 3px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
    position: relative;
}

.feature-card {
    background: var(--color-card-bg);
    padding: 50px 30px;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
    text-align: center;
    position: relative;
}

.feature-icon {
    width: 100px;
    height: 100px;
    background: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    font-size: 40px;
    color: white;
}

.feature-card h3 {
    font-size: 1.8rem;
    color: var(--color-text-primary);
    margin-bottom: 1.5rem;
    font-weight: 800;
    font-family: 'Inter', sans-serif;
}

.feature-card p {
    color: var(--color-text-secondary);
    line-height: 2;
    font-size: 1.1rem;
    font-family: 'Inter', sans-serif;
}

/* Products Section */
.products {
    padding: 8rem 0;
    background: var(--color-bg);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

.product-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--color-border);
    padding: 3rem 2rem;
    text-align: center;
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--color-accent);
}

.product-image {
    width: 100%;
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--color-primary);
    margin-bottom: 2rem;
    background: var(--color-card-bg);
    border-radius: 12px;
}

.product-card h3 {
    font-size: 1.8rem;
    color: var(--color-text-primary);
    margin-bottom: 1.5rem;
    font-weight: 700;
    font-family: 'Inter', sans-serif;
}

.product-card p {
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 2rem;
    font-family: 'Inter', sans-serif;
}

.product-features {
    list-style: none;
    padding: 0;
    margin: 0 0 2.5rem 0;
    text-align: left;
    background: var(--color-card-bg);
    padding: 2rem;
    border-radius: 12px;
}

.product-features li {
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
    padding-left: 2rem;
    position: relative;
    line-height: 1.6;
    font-family: 'Inter', sans-serif;
}

.product-features li i {
    color: var(--color-accent);
    position: absolute;
    left: 0;
    top: 0.4rem;
    font-size: 1rem;
    opacity: 0.8;
    font-weight: 900;
}

.product-actions .btn {
    border-radius: var(--border-radius-pill);
    padding: 12px 28px;
    font-size: 14px;
    font-weight: 600;
    border: 1px solid var(--color-accent);
    background: transparent;
    color: var(--color-accent);
    text-transform: none;
    letter-spacing: 0;
}

/* Pricing Section - Minimalist Design */
.pricing {
    padding: 8rem 0;
    position: relative;
    background: var(--color-bg);
}

.pricing-content {
    position: relative;
}

.pricing-subtitle {
    text-align: center;
    margin-bottom: 5rem;
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
    font-weight: 400;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Pricing Card - Steve Jobs' Minimalist Design */
.pricing-card {
    background: var(--color-card-bg);
    border-radius: var(--border-radius-md);
    padding: 2rem 1.5rem;
    text-align: center;
    border: 1px solid var(--color-border);
    position: relative;
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-accent);
}

/* Featured Pricing Card - Subtle Emphasis */
.pricing-card.featured {
    border-color: var(--color-accent);
    background: var(--color-card-bg);
    position: relative;
}

/* Popular Badge - Simplified */
.popular-badge {
    background: var(--color-accent);
    color: var(--color-bg);
    font-size: 0.8rem;
    padding: 0.5rem 1.25rem;
    border-radius: var(--border-radius-pill);
    font-weight: 600;
    margin-bottom: 1.5rem;
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Pricing Card Title - Clean Typography */
.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--color-text-primary);
    font-weight: 700;
    font-family: 'Inter', sans-serif;
    letter-spacing: -0.2px;
    line-height: 1.2;
}

/* Price - Bold & Minimal */
.price {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--color-accent);
    font-family: 'Inter', sans-serif;
    line-height: 1;
}

.price .currency {
    font-size: 1.2rem;
    font-weight: 600;
    vertical-align: top;
    margin-right: 0.25rem;
}

.price .amount {
    font-size: 2.8rem;
    font-weight: 900;
}

.price .period {
    font-size: 1rem;
    font-weight: 400;
    color: var(--color-text-secondary);
    margin-left: 0.5rem;
    vertical-align: bottom;
}

/* Pricing Features - Minimalist List */
.pricing-features {
    list-style: none;
    padding: 0;
    margin: 0 0 2rem 0;
    text-align: left;
    background: var(--color-card-bg);
    padding: 1.5rem;
    border-radius: 12px;
}

.pricing-features li {
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
    padding-left: 1.8rem;
    position: relative;
    line-height: 1.5;
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
}

.pricing-features li i {
    color: var(--color-primary);
    position: absolute;
    left: 0;
    top: 0.3rem;
    font-size: 1.3rem;
}

.pricing-card .btn {
    border-radius: 50px;
    padding: 14px 32px;
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    width: 100%;
    box-sizing: border-box;
}

.purchase-notes {
    background: white;
    border-radius: 20px;
    padding: 3rem;
    margin-top: 5rem;
    border: 1px solid var(--color-border);
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.purchase-notes h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--color-primary);
    font-weight: 700;
    font-family: 'Inter', sans-serif;
    text-align: center;
}

.purchase-notes ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.purchase-notes li {
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
    padding-left: 2rem;
    position: relative;
    line-height: 1.6;
    font-family: 'Inter', sans-serif;
}

.purchase-notes li i {
    color: var(--color-primary);
    position: absolute;
    left: 0;
    top: 0.3rem;
    font-size: 1.2rem;
}

/* Support Section - Minimalist Design */
.support {
    padding: 6rem 0;
    background: var(--color-bg);
    position: relative;
    border-top: 1px solid var(--color-border);
}

.support-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    align-items: stretch;
}

.support-item {
    width: 100%;
}

.support-info {
    background: #F8FAFC;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: 2.5rem;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
}

.support-info h3 {
    font-size: 1.35rem;
    color: var(--color-text-primary);
    margin-bottom: 1.25rem;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    width: 100%;
}

.support-info p {
    color: var(--color-text-secondary);
    margin-bottom: 0;
    line-height: 1.6;
    font-family: 'Inter', sans-serif;
    width: 100%;
    font-size: 1rem;
}

.support-info a {
    color: var(--color-primary);
    text-decoration: underline;
    transition: none;
}

.support-info a:hover {
    color: var(--color-accent);
}

/* Footer - Minimalist Design */
.footer {
    background: #FFFFFF;
    color: var(--color-text-primary);
    padding: 4rem 0 2rem;
    position: relative;
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    max-width: 1200px;
    margin: 0 auto 3rem;
    gap: 4rem;
}

.footer-brand {
    flex: 1;
    min-width: 300px;
}

.footer-links {
    display: flex;
    gap: 4rem;
    flex: 2;
    justify-content: flex-end;
}

.footer-column {
    min-width: 150px;
}

.footer-brand .logo {
    margin-bottom: 1.5rem;
}

.footer-brand h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
    font-weight: 700;
    font-family: 'Inter', sans-serif;
    display: inline-block;
}

.footer-brand p {
    color: var(--color-text-secondary);
    line-height: 1.8;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
}

.footer-column h4 {
    font-size: 1.1rem;
    margin-bottom: 1.25rem;
    color: var(--color-text-primary);
    font-weight: 600;
    font-family: 'Inter', sans-serif;
}

.footer-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-column li {
    margin-bottom: 0.75rem;
}

.footer-column a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    line-height: 1.6;
}

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

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding-top: 1.5rem;
    text-align: center;
    color: var(--color-text-light);
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    line-height: 1.5;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--color-accent);
    color: white;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--color-primary);
    transform: translateY(-3px);
}

.back-to-top i {
    font-weight: 600;
}

/* Mobile Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-bg);
        padding: 1rem 0;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        border-top: 1px solid var(--color-border);
    }

    .nav-menu.active {
        display: block;
    }

    .nav-menu li {
        text-align: center;
        margin: 1rem 0;
    }

    .nav-toggle {
        display: block;
    }

    .theme-selector {
        display: none;
    }

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

    .hero-title {
        font-size: clamp(2.5rem, 8vw, 4rem);
        padding: 0;
    }

    .hero-subtitle {
        font-size: clamp(1.2rem, 4vw, 1.5rem);
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .products-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .support-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 3rem;
        align-items: flex-start;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 2rem;
        justify-content: flex-start;
        width: 100%;
    }
    
    .footer-column {
        min-width: auto;
        width: 100%;
    }
}