/* CSS Variables - Brand Colors */
:root {
    --primary-bg: #050816;
    --accent-cyan: #00E0FF;
    --accent-orange: #FF7A45;
    --text-primary: #FFFFFF;
    --text-secondary: #B8BCC8;
    --text-muted: #6B7280;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.1);
    --hover-bg: rgba(0, 224, 255, 0.1);
    
    --font-heading: 'Space Grotesk', 'Inter', sans-serif;
    --font-body: 'Inter', 'Roboto', sans-serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    /* Prevent horizontal scroll on mobile */
    overflow-x: hidden;
    /* Improve font rendering */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background-color: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    /* Improve scrolling on iOS */
    -webkit-overflow-scrolling: touch;
    /* Prevent text size adjustment on orientation change */
    -webkit-text-size-adjust: 100%;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: 3.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.5rem;
}

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

a {
    color: var(--accent-cyan);
    text-decoration: none;
    transition: var(--transition);
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(5, 8, 22, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px); /* Safari support */
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--card-border);
    /* Prevent navbar from shifting on scroll (iOS Safari) */
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-menu a {
    color: var(--text-secondary);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--accent-cyan);
    background: var(--hover-bg);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

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

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Hero Section */
.hero {
    margin-top: 80px;
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    background: linear-gradient(180deg, var(--primary-bg) 0%, rgba(5, 8, 22, 0.8) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 0%, rgba(0, 224, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-trust-bar {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--card-border);
}

.trust-text {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
}

.trust-logos {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.logo-item {
    color: var(--text-muted);
    font-size: 0.9rem;
    opacity: 0.6;
    transition: var(--transition);
    cursor: pointer;
}

.logo-item:hover {
    opacity: 1;
    color: var(--accent-cyan);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn-primary {
    background: var(--accent-orange);
    color: var(--primary-bg);
}

.btn-primary:hover {
    background: #ff8c5a;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 122, 69, 0.3);
}

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

.btn-secondary:hover {
    background: var(--hover-bg);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 224, 255, 0.2);
}

/* Sections */
.section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.section-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* Why Section */
.why-section {
    background: rgba(255, 255, 255, 0.02);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    transition: var(--transition);
}

.feature-card:hover {
    border-color: var(--accent-cyan);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 224, 255, 0.1);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
    color: var(--accent-cyan);
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--text-secondary);
}

/* Lean Data Workshop Card - Full width when alone, centered and wider */
.ldw-card {
    grid-column: 1 / -1;
    max-width: 100%;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .ldw-card {
        max-width: 600px;
    }
}

@media (min-width: 1024px) {
    .ldw-card {
        max-width: 700px;
    }
}

@media (min-width: 1200px) {
    .ldw-card {
        max-width: 800px;
    }
}

.ldw-card .feature-icon {
    text-align: center;
    font-size: 4.5rem;
    margin-bottom: var(--spacing-md);
    line-height: 1;
    display: block;
}

.ldw-card h3 {
    text-align: center;
}

.ldw-card h3 a {
    color: var(--accent-cyan);
    text-decoration: none;
}

.ldw-card h3 a:hover {
    color: var(--text-primary);
}

.ldw-card .btn {
    display: block;
    text-align: center;
    margin-top: var(--spacing-md);
}

/* Offerings Section */
.offerings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.offering-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    transition: var(--transition);
}

.offering-card:hover {
    border-color: var(--accent-cyan);
    transform: translateY(-4px);
}

.offering-card h3 {
    color: var(--accent-cyan);
    margin-bottom: var(--spacing-md);
}

.offering-card ul {
    list-style: none;
    padding-left: 0;
}

.offering-card li {
    color: var(--text-secondary);
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
}

.offering-card li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-cyan);
}

/* Clients Preview Section */
.clients-preview-section {
    background: rgba(255, 255, 255, 0.02);
}

.clients-logo-wall {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    margin: var(--spacing-lg) 0;
}

.client-logo {
    color: var(--text-muted);
    font-size: 1.2rem;
    opacity: 0.6;
    transition: var(--transition);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
}

.client-logo:hover {
    opacity: 1;
    color: var(--accent-cyan);
    border-color: var(--accent-cyan);
}

.impact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.impact-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
}

.impact-card h4 {
    color: var(--accent-cyan);
    margin-bottom: var(--spacing-sm);
}

.impact-card p {
    color: var(--text-secondary);
}

/* Founder Section */
.founder-section {
    background: rgba(255, 255, 255, 0.02);
}

.founder-content {
    max-width: 900px;
    margin: 0 auto var(--spacing-lg);
}

.founder-text p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-size: 1.05rem;
    line-height: 1.8;
}

.media-strip {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--card-border);
}

.media-label {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.media-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
}

.media-logos span {
    color: var(--text-secondary);
    font-size: 0.9rem;
    opacity: 0.7;
    transition: var(--transition);
}

.media-logos span:hover {
    opacity: 1;
    color: var(--accent-cyan);
}

/* CTA Section */
.cta-section {
    text-align: center;
    background: linear-gradient(135deg, rgba(0, 224, 255, 0.1) 0%, rgba(255, 122, 69, 0.1) 100%);
}

.cta-text {
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    background: rgba(0, 0, 0, 0.3);
    padding: var(--spacing-lg) 0 var(--spacing-md);
    border-top: 1px solid var(--card-border);
    margin-top: var(--spacing-xl);
}

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

.footer-col h4 {
    color: var(--accent-cyan);
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.footer-col p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

.footer-col ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-col ul li a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--accent-cyan);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--card-border);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Page-specific Styles */
.page-hero {
    margin-top: 80px;
    padding: var(--spacing-xl) 0;
    text-align: center;
    background: linear-gradient(180deg, var(--primary-bg) 0%, rgba(5, 8, 22, 0.8) 100%);
}

.page-hero h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.page-hero p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto;
    color: var(--text-secondary);
}

.content-section {
    padding: var(--spacing-lg) 0;
}

.content-section h2 {
    color: var(--accent-cyan);
    margin-bottom: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.content-section h3 {
    color: var(--text-primary);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.content-section ul {
    margin-left: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.content-section li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.8;
}

/* Form Styles */
.contact-form {
    max-width: 700px;
    margin: 0 auto;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-cyan);
    background: rgba(255, 255, 255, 0.08);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* Responsive Design - Mobile First Approach */

/* Large Tablets and Small Desktops (1024px and below) */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    h1 {
        font-size: 3rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    h2 {
        font-size: 2.2rem;
    }
    
    .features-grid,
    .offerings-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

/* Tablets (768px and below) */
@media (max-width: 768px) {
    /* Navigation */
    .mobile-menu-toggle {
        display: flex;
        z-index: 1001;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background: rgba(5, 8, 22, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px); /* Safari support */
        width: 100%;
        padding: var(--spacing-md);
        border-top: 1px solid var(--card-border);
        transition: left 0.3s ease;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
        max-height: calc(100vh - 70px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
        /* Prevent menu from shifting */
        transform: translateZ(0);
        -webkit-transform: translateZ(0);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-menu a {
        display: block;
        padding: var(--spacing-sm) var(--spacing-md);
        width: 100%;
        text-align: left;
        font-size: 1rem;
        min-height: 44px; /* Touch target size */
        display: flex;
        align-items: center;
    }
    
    /* Typography */
    h1 {
        font-size: 2.5rem;
        line-height: 1.1;
    }
    
    .hero-title {
        font-size: 2.5rem;
        line-height: 1.1;
    }
    
    .page-hero h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    h3 {
        font-size: 1.5rem;
    }
    
    h4 {
        font-size: 1.3rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
        line-height: 1.7;
    }
    
    .page-hero p {
        font-size: 1.1rem;
    }
    
    /* Spacing */
    .section {
        padding: var(--spacing-lg) 0;
    }
    
    .hero {
        padding: var(--spacing-lg) 0;
    }
    
    .page-hero {
        padding: var(--spacing-lg) 0;
    }
    
    .content-section {
        padding: var(--spacing-md) 0;
    }
    
    /* Grids */
    .features-grid,
    .offerings-grid,
    .impact-cards {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    /* Buttons */
    .hero-cta,
    .cta-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .btn {
        width: 100%;
        padding: 1rem 1.5rem;
        font-size: 1rem;
        min-height: 48px; /* Touch target size */
    }
    
    /* Cards */
    .feature-card,
    .offering-card,
    .impact-card,
    .article-card {
        padding: var(--spacing-sm);
    }
    
    .feature-icon {
        font-size: 2.5rem;
    }
    
    /* Trust Bar */
    .hero-trust-bar {
        margin-top: var(--spacing-lg);
        padding: var(--spacing-sm) 0;
    }
    
    .trust-logos {
        gap: var(--spacing-sm);
    }
    
    .logo-item {
        font-size: 0.85rem;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: var(--spacing-md);
    }
    
    /* Form */
    .contact-form {
        padding: var(--spacing-md);
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 16px; /* Prevents zoom on iOS */
        min-height: 44px; /* Touch target */
    }
    
    /* Tabs */
    .tabs {
        flex-direction: column;
        gap: 0;
    }
    
    .tab-button {
        width: 100%;
        text-align: left;
        padding: var(--spacing-sm) var(--spacing-md);
        min-height: 48px;
        border-bottom: 1px solid var(--card-border);
    }
    
    .tab-button.active {
        border-bottom-color: var(--accent-cyan);
        border-left: 3px solid var(--accent-cyan);
    }
    
    /* Media Strip */
    .media-logos {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
    }
    
    /* Founder Content */
    .founder-content {
        padding: 0 var(--spacing-sm);
    }
    
    .founder-text p {
        font-size: 1rem;
    }
}

/* Mobile Phones (480px and below) */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    /* Typography */
    h1 {
        font-size: 2rem;
        line-height: 1.2;
    }
    
    .hero-title {
        font-size: 2rem;
        line-height: 1.2;
    }
    
    .page-hero h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    h3 {
        font-size: 1.3rem;
    }
    
    h4 {
        font-size: 1.1rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .page-hero p {
        font-size: 1rem;
    }
    
    .section-intro {
        font-size: 1rem;
    }
    
    .cta-text {
        font-size: 1rem;
    }
    
    /* Spacing */
    .section {
        padding: var(--spacing-md) 0;
    }
    
    .hero {
        margin-top: 70px;
        padding: var(--spacing-md) 0;
    }
    
    .page-hero {
        margin-top: 70px;
        padding: var(--spacing-md) 0;
    }
    
    /* Logo */
    .logo {
        font-size: 1.2rem;
    }
    
    /* Cards */
    .feature-card,
    .offering-card,
    .impact-card,
    .article-card {
        padding: var(--spacing-sm);
    }
    
    .feature-icon {
        font-size: 2rem;
    }
    
    /* Buttons */
    .btn {
        padding: 0.875rem 1.25rem;
        font-size: 0.95rem;
    }
    
    /* Trust Bar */
    .trust-text {
        font-size: 0.85rem;
        padding: 0 var(--spacing-sm);
    }
    
    .clients-logo-wall {
        gap: var(--spacing-sm);
    }
    
    .client-logo {
        font-size: 1rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    /* Footer */
    .footer {
        padding: var(--spacing-md) 0 var(--spacing-sm);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    /* Content */
    .content-section h2 {
        font-size: 1.75rem;
    }
    
    .content-section ul {
        margin-left: var(--spacing-sm);
        padding-left: var(--spacing-sm);
    }
}

/* Very Small Phones (360px and below) */
@media (max-width: 360px) {
    .container {
        padding: 0 0.75rem;
    }
    
    h1 {
        font-size: 1.75rem;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .logo {
        font-size: 1.1rem;
    }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
    /* Remove hover effects on touch devices */
    .feature-card:hover,
    .offering-card:hover,
    .article-card:hover {
        transform: none;
        box-shadow: none;
    }
    
    /* Increase touch targets */
    .nav-menu a,
    .btn,
    .tab-button {
        min-height: 44px;
    }
    
    /* Improve tap feedback */
    .btn:active {
        transform: scale(0.98);
        opacity: 0.9;
    }
    
    .nav-menu a:active {
        background: var(--hover-bg);
        opacity: 0.9;
    }
    
    .tab-button:active {
        opacity: 0.8;
    }
}

/* Touch device specific styles */
.touch-device .btn,
.touch-device .tab-button,
.touch-device .nav-menu a {
    -webkit-tap-highlight-color: rgba(0, 224, 255, 0.2);
    tap-highlight-color: rgba(0, 224, 255, 0.2);
}

.touch-device .btn:active,
.touch-device .tab-button:active {
    transform: scale(0.97);
    transition: transform 0.1s ease;
}

/* Landscape Mobile Optimization */
@media (max-width: 768px) and (orientation: landscape) {
    .hero {
        padding: var(--spacing-md) 0;
    }
    
    .page-hero {
        padding: var(--spacing-md) 0;
    }
    
    .section {
        padding: var(--spacing-md) 0;
    }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .logo {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}

/* Tabs */
.tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--card-border);
}

.tab-button {
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.tab-button:hover {
    color: var(--accent-cyan);
}

.tab-button.active {
    color: var(--accent-cyan);
    border-bottom-color: var(--accent-cyan);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Articles List */
.articles-list {
    display: grid;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.article-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    transition: var(--transition);
}

.article-card:hover {
    border-color: var(--accent-cyan);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 224, 255, 0.1);
}

.article-card h3 {
    color: var(--accent-cyan);
    margin-bottom: var(--spacing-xs);
}

.article-meta {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.article-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.article-link {
    color: var(--accent-cyan);
    font-weight: 500;
    display: inline-block;
    margin-top: var(--spacing-xs);
}

.article-link:hover {
    color: var(--text-primary);
}

/* Content Block */
.content-block {
    margin-bottom: var(--spacing-lg);
}

.content-block h3 {
    color: var(--accent-cyan);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.content-block ul {
    margin-left: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.content-block li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.8;
}