:root {
    /* Professional Color Palette - Light Theme */
    --primary-color: #10b981;
    --primary-dark: #059669;
    --secondary-color: #14b8a6;
    --accent-color: #10b981;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --text-color: #1e293b;
    --text-secondary: #475569;
    --background: #ffffff;
    --background-light: #f8fafc;
    --card-bg: #ffffff;
    --border-color: #e5e7eb;
    --white: #ffffff;
    --gradient-1: linear-gradient(135deg, #10b981 0%, #14b8a6 100%);
    --gradient-2: linear-gradient(135deg, #059669 0%, #10b981 100%);
    --shadow-color: rgba(16, 185, 129, 0.1);
    
    /* Enhanced Spacing System */
    --spacing-2xs: 0.125rem;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* Container widths */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1200px;
}

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

body {
    font-family: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background);
    background-image: 
        radial-gradient(circle at 50% 0%, rgba(14, 165, 233, 0.1) 0%, transparent 25%),
        radial-gradient(circle at 80% 50%, rgba(99, 102, 241, 0.08) 0%, transparent 25%);
    background-attachment: fixed;
    overflow-x: hidden;
    min-height: 100vh;
}

header {
    background: #ffffff !important;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid #e5e7eb !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05) !important;
}

header.scrolled {
    background: #ffffff !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08) !important;
    border-bottom-color: #e5e7eb !important;
}

nav {
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 5rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #0f172a !important;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    cursor: pointer;
    transition: transform 0.3s ease;
    z-index: 1001;
    text-decoration: none;
}

.logo:hover {
    transform: scale(1.05);
}

.logo img {
    height: 40px;
    width: 40px;
    vertical-align: middle;
    border-radius: 50%;
    object-fit: cover;
}

.logo-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    letter-spacing: -0.5px;
}

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

.nav-link {
    text-decoration: none;
    color: #64748b !important;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2px;
}

.nav-link:hover {
    color: #0f172a !important;
    background: #f8fafc !important;
}

.nav-link:hover::before {
    transform: translateX(-50%) scaleX(1);
}

.nav-link.active {
    color: #10b981 !important;
    background: rgba(16, 185, 129, 0.08) !important;
}

.nav-link.active::before {
    transform: translateX(-50%) scaleX(1);
}

/* Mobile Menu Button */
.mobile-menu-button {
    display: none;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 101;
    flex-direction: column;
    gap: 4px;
    width: 32px;
    height: 32px;
    align-items: center;
    justify-content: center;
}

.hamburger-line {
    width: 24px;
    height: 2px;
    background: var(--text-color);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu-button.active .hamburger-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.mobile-menu-button.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-button.active .hamburger-line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

.mobile-menu-button i {
    transition: transform 0.3s ease;
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(2, 6, 23, 0.98);
    backdrop-filter: blur(10px);
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-content {
    position: relative;
    height: 100%;
    display: flex;
    flex-direction: column;
    padding: 2rem;
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
}

.mobile-menu-close {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.mobile-nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 600;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.mobile-nav-link:hover {
    color: var(--primary-color);
    padding-left: 1rem;
}

.mobile-nav-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin: 2rem 0;
}

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

.theme-toggle-mobile {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 2rem;
    padding: 0.5rem 1rem;
    color: var(--text-color);
    cursor: pointer;
    transition: background 0.3s ease;
}

.theme-toggle-mobile:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Auth Section Styles */
.auth-section {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-login {
    padding: 10px 24px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.25);
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.35);
}

/* User Profile Dropdown */
.user-profile-dropdown {
    position: relative;
}

.profile-trigger {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: #f8fafc;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
}

html.dark .profile-trigger {
    background: #1e293b;
    border-color: #334155;
    color: #f9fafb;
}

.profile-trigger:hover {
    background: #f1f5f9;
    border-color: #10b981;
}

html.dark .profile-trigger:hover {
    background: #334155;
}

.profile-trigger i.fa-user-circle {
    font-size: 24px;
    color: #10b981;
}

.profile-trigger i.fa-chevron-down {
    font-size: 12px;
    color: #64748b;
    transition: transform 0.3s;
}

.user-profile-dropdown.active .profile-trigger i.fa-chevron-down {
    transform: rotate(180deg);
}

.profile-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 280px;
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s;
    z-index: 1000;
}

html.dark .profile-menu {
    background: #1e293b;
    border-color: #334155;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.user-profile-dropdown.active .profile-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.profile-menu-header {
    padding: 20px;
    border-bottom: 1px solid #e5e7eb;
    display: flex;
    gap: 12px;
    align-items: center;
}

html.dark .profile-menu-header {
    border-bottom-color: #334155;
}

.profile-avatar {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 28px;
    flex-shrink: 0;
}

.profile-info {
    flex: 1;
    min-width: 0;
}

.profile-menu .profile-name {
    font-weight: 600;
    font-size: 15px;
    color: #1f2937;
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

html.dark .profile-menu .profile-name {
    color: #f9fafb;
}

.profile-menu .profile-email {
    font-size: 13px;
    color: #6b7280;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.profile-menu-divider {
    height: 1px;
    background: #e5e7eb;
    margin: 8px 0;
}

html.dark .profile-menu-divider {
    background: #334155;
}

.profile-menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: #374151;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
}

html.dark .profile-menu-item {
    color: #d1d5db;
}

.profile-menu-item:hover {
    background: #f9fafb;
    color: #10b981;
}

html.dark .profile-menu-item:hover {
    background: #334155;
}

.profile-menu-item:first-of-type {
    border-radius: 12px 12px 0 0;
}

.profile-menu-item:last-of-type {
    border-radius: 0 0 12px 12px;
    color: #dc2626;
}

html.dark .profile-menu-item:last-of-type {
    color: #f87171;
}

.profile-menu-item:last-of-type:hover {
    background: #fef2f2;
    color: #dc2626;
}

html.dark .profile-menu-item:last-of-type:hover {
    background: rgba(239, 68, 68, 0.1);
    color: #f87171;
}

.profile-menu-item i {
    width: 18px;
    text-align: center;
}

main {
    margin-top: 4rem;
}

.hero {
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 50%, #f0f9ff 100%);
    padding: calc(var(--spacing-3xl) + var(--spacing-2xl)) var(--spacing-xl);
    text-align: center;
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: #0f172a;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.hero p {
    font-size: 1.35rem;
    margin-bottom: 2rem;
    color: #475569;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.cta-button:hover {
    background-color: var(--secondary-color);
}

/* Standardized button utilities (use these going forward) */
.btn { 
    display: inline-flex; 
    align-items: center; 
    justify-content: center; 
    gap: .5rem; 
    padding: .75rem 1.5rem; 
    border-radius: 9999px; 
    font-weight: 600; 
    text-decoration: none; 
    transition: all .18s ease;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

.btn-primary { 
    background: linear-gradient(90deg, var(--secondary-color), var(--primary-color)); 
    color: #fff; 
    box-shadow: 0 6px 18px rgba(16, 185, 129, 0.3);
}

.btn-primary:hover { 
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(16, 185, 129, 0.4);
}

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

html.dark .btn-secondary {
    background: #1e293b;
    color: var(--primary-color);
}

.btn-secondary:hover { 
    background: var(--primary-color); 
    color: white;
    transform: translateY(-2px);
}

/* Hero CTA container */
.hero-cta {
    display: flex;
    gap: 16px;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.payment-info {
    text-align: center;
    font-size: 14px;
    color: #64748b;
    margin-top: 8px;
}

.no-subscription {
    font-weight: 600;
    color: var(--primary-color);
}

/* keep old class names working */
.cta-button.primary { 
    padding: .75rem 1.25rem; 
    border-radius: 999px; 
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.12);
}

.cta-button.secondary { 
    background: transparent; 
    border: 1px solid rgba(255, 255, 255, 0.06); 
    color: #fff; 
    padding: .65rem 1rem; 
    border-radius: 999px;
}
*** End Patch

section {
    padding: var(--spacing-3xl) var(--spacing-xl);
    max-width: var(--container-xl);
    margin: 0 auto;
}

/* Pricing Section */
.pricing {
    background-color: #f8fafc;
    position: relative;
    overflow: hidden;
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.pricing-header h2 {
    font-size: 2.5rem;
    color: var(--text-color);
    margin-bottom: var(--spacing-md);
}

.pricing-header p {
    font-size: 1.125rem;
    color: var(--text-color);
    opacity: 0.8;
    max-width: 600px;
    margin: 0 auto;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    max-width: 1100px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

.pricing-card {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 1rem;
    padding: var(--spacing-2xl);
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
}

.pricing-card.popular {
    border: 2px solid var(--primary-color);
    transform: scale(1.05);
}

.pricing-card.popular:hover {
    transform: scale(1.05) translateY(-8px);
}

.popular-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.pricing-name {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: var(--spacing-sm);
}

.pricing-description {
    color: var(--text-color);
    opacity: 0.8;
    margin-bottom: var(--spacing-lg);
    font-size: 0.95rem;
}

.pricing-price {
    margin-bottom: var(--spacing-xl);
}

.price-amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-color);
    line-height: 1;
}

.price-period {
    font-size: 1rem;
    color: var(--text-color);
    opacity: 0.7;
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin: var(--spacing-xl) 0;
    flex-grow: 1;
}

.pricing-features li {
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.pricing-features li::before {
    content: "✓";
    color: var(--primary-color);
    font-weight: bold;
}

.pricing-features li.disabled {
    opacity: 0.5;
}

.pricing-features li.disabled::before {
    content: "×";
    color: #dc2626;
}

.pricing-button {
    display: inline-block;
    width: 100%;
    padding: var(--spacing-md);
    border-radius: 0.5rem;
    text-align: center;
    font-weight: 600;
    transition: all 0.3s ease;
    text-decoration: none;
}

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

.pricing-button-primary:hover {
    background-color: var(--secondary-color);
}

.pricing-button-secondary {
    background-color: #f3f4f6;
    color: #1e293b;
}

.pricing-button-secondary:hover {
    background-color: #e5e7eb;
}

@media (max-width: 1024px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
        max-width: 800px;
    }
    
    .pricing-card.popular {
        grid-row: 1;
        grid-column: 1 / -1;
    }
}

@media (max-width: 640px) {
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }
    
    .pricing-card {
        transform: none !important;
    }
    
    .pricing-card.popular {
        transform: none !important;
        order: -1;
    }
    
    .pricing-header h2 {
        font-size: 2rem;
    }
}

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

.feature-card {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    padding: var(--spacing-xl);
    border-radius: 0.5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.feature-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.download-section {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: 2rem;
    padding: var(--spacing-3xl) var(--spacing-2xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

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

.download-header h2 {
    font-size: 2.5rem;
    color: var(--text-color);
    margin-bottom: var(--spacing-md);
}

.download-header p {
    font-size: 1.125rem;
    color: var(--text-color);
    opacity: 0.8;
    max-width: 600px;
    margin: 0 auto;
}

.download-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: var(--spacing-xl) auto;
}

.download-card {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    padding: var(--spacing-2xl);
    border-radius: 1rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}

.download-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
}

.download-icon {
    width: 64px;
    height: 64px;
    background: var(--light-bg);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.download-icon img {
    width: 32px;
    height: 32px;
}

.download-platform {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: var(--spacing-sm);
}

.download-version {
    font-size: 0.875rem;
    color: var(--text-color);
    opacity: 0.7;
    margin-bottom: var(--spacing-lg);
}

.download-size {
    font-size: 0.875rem;
    color: var(--text-color);
    opacity: 0.7;
    margin-bottom: var(--spacing-xl);
}

.download-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background-color: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: 0.75rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    margin-top: auto;
}

.download-button:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

.download-button svg {
    width: 20px;
    height: 20px;
}

.download-requirements {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    text-align: center;
}

.requirements-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: var(--spacing-md);
}

.requirements-list {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
    max-width: 800px;
    margin: 0 auto;
}

.requirement-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-color);
    opacity: 0.8;
    font-size: 0.95rem;
}

.requirement-item svg {
    width: 16px;
    height: 16px;
    color: var(--primary-color);
}

@media (max-width: 768px) {
    /* Auth section responsive */
    .auth-section {
        display: none;
    }

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

    .download-section {
        padding: var(--spacing-2xl) var(--spacing-lg);
        border-radius: 1rem;
    }

    .download-header h2 {
        font-size: 2rem;
    }

    .download-options {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .requirements-list {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }
}

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

.step {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: 0.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.step h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

footer {
    background-color: #f8fafc;
    color: var(--text-color);
    padding: var(--spacing-2xl) 0;
    margin-top: var(--spacing-3xl);
}

.footer-content {
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
}

.footer-section {
    text-align: left;
}

.footer-section h4 {
    color: var(--text-color);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

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

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

.footer-section ul li a {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.3s ease;
    opacity: 0.8;
}

.footer-section ul li a:hover {
    color: var(--primary-color);
    opacity: 1;
}

.footer-bottom {
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    text-align: center;
    color: var(--text-color);
    opacity: 0.7;
}

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

@media (max-width: 640px) {
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-section {
        text-align: center;
    }
}

@media (max-width: 768px) {
    /* Show mobile menu button */
    .mobile-menu-button {
        display: block;
    }
    
    /* Hide desktop navigation on mobile */
    .nav-links {
        display: none;
    }
    
    /* Adjust header and navigation */
    nav {
        padding: var(--spacing-md) var(--spacing-lg);
        height: auto;
    }
    
    .logo {
        font-size: 1.25rem;
    }
    
    .logo img {
        height: 28px;
    }
    
    /* Adjust main content spacing */
    main {
        margin-top: 3.5rem;
    }
    
    /* Hero section */
    .hero {
        padding: var(--spacing-3xl) var(--spacing-lg);
    }
    
    .hero h1 {
        font-size: 2rem;
        line-height: 1.2;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    /* Sections */
    section {
        padding: var(--spacing-2xl) var(--spacing-lg);
    }
    
    /* Feature grid */
    .feature-grid,
    .guide-steps {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    /* Download section */
    .download-section {
        padding: var(--spacing-2xl) var(--spacing-lg);
        border-radius: 1rem;
    }

    .download-header h2 {
        font-size: 1.75rem;
    }

    .download-options {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        max-width: 100%;
    }
    
    /* Download cards */
    .download-card {
        padding: var(--spacing-xl);
    }

    .requirements-list {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    /* Pricing section */
    .pricing-header h2 {
        font-size: 2rem;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        padding: 0;
    }
    
    .pricing-card {
        transform: none !important;
    }
    
    .pricing-card:hover {
        transform: translateY(-4px) !important;
    }
    
    .pricing-card.popular {
        transform: none !important;
        order: -1;
    }
    
    .pricing-card.popular:hover {
        transform: translateY(-4px) !important;
    }
    
    /* Buttons */
    .cta-button,
    .btn {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: 0.95rem;
        width: 100%;
        text-align: center;
    }
    
    /* Feature cards */
    .feature-card {
        padding: var(--spacing-lg);
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }
    
    .footer-section {
        text-align: center;
    }
}

/* Tablet screens */
@media (min-width: 769px) and (max-width: 1024px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
        max-width: 800px;
    }
    
    .pricing-card.popular {
        grid-column: 1 / -1;
        max-width: 400px;
        margin: 0 auto;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .download-options {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Small mobile screens */
@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .hero p {
        font-size: 0.95rem;
    }
    
    section {
        padding: var(--spacing-xl) var(--spacing-md);
    }
    
    .pricing-header h2,
    .download-header h2 {
        font-size: 1.5rem;
    }
    
    .pricing-card,
    .feature-card {
        padding: var(--spacing-lg);
    }
    
    .logo {
        font-size: 1.1rem;
    }
    
    .logo img {
        height: 24px;
    }
}

/* Dark Mode Styles */
.dark {
    --text-color: #f1f5f9;
    --text-secondary: #cbd5e1;
    --background: #020617;
    --background-light: #0f172a;
    --card-bg: rgba(15, 23, 42, 0.8);
    --border-color: rgba(148, 163, 184, 0.1);
    --shadow-color: rgba(14, 165, 233, 0.15);
    --white: #ffffff;
}

.dark body {
    background-image: 
        radial-gradient(circle at 50% 0%, var(--primary-color) 0%, transparent 25%),
        radial-gradient(circle at 80% 50%, var(--secondary-color) 0%, transparent 25%);
}

.dark header {
    background: #0f172a;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.dark header.scrolled {
    background: #0f172a;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

/* Dark mode for pricing section */
.dark .pricing {
    background-color: var(--background);
}

.dark .pricing-card {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(148, 163, 184, 0.1);
}

.dark .pricing-card:hover {
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3);
}

.dark .pricing-button-secondary {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-color);
}

.dark .pricing-button-secondary:hover {
    background-color: rgba(255, 255, 255, 0.15);
}

/* Dark mode for feature cards */
.dark .feature-card {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(148, 163, 184, 0.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.dark .feature-card:hover {
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
}

/* Dark mode for download section */
.dark .download-section {
    background: linear-gradient(135deg, var(--background-light) 0%, var(--background) 100%);
}

.dark .download-card {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(148, 163, 184, 0.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.dark .download-card:hover {
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
}

/* Dark mode for hero section */
.dark .hero {
    background: linear-gradient(135deg, #020617 0%, #0f172a 50%, #0a1628 100%);
}

.dark .hero h1 {
    color: #f1f5f9;
}

.dark .hero p {
    color: #cbd5e1;
}

/* Dark mode for mobile menu */
.dark .mobile-menu-overlay {
    background: rgba(2, 6, 23, 0.98);
}

.dark .mobile-nav-link {
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

.dark .mobile-nav-divider {
    background: rgba(255, 255, 255, 0.1);
}

.dark .theme-toggle-mobile {
    background: rgba(255, 255, 255, 0.1);
}

.dark .theme-toggle-mobile:hover {
    background: rgba(255, 255, 255, 0.2);
}

.dark .btn-secondary {
    border-color: rgba(255, 255, 255, 0.2);
}

.dark .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Dark mode for footer */
.dark footer {
    background-color: var(--background-light);
}

.dark .footer-section ul li a {
    color: var(--text-secondary);
}

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

.dark .footer-bottom {
    border-top-color: rgba(255, 255, 255, 0.1);
}