/* ===================================
   CSS RESET & BASE STYLES
   =================================== */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
    overflow-x: hidden;
}

/* ===================================
   CSS VARIABLES
   =================================== */

:root {
    /* Colors */
    --primary-white: #ffffff;
    --accent-blue: #1976d2;
    --accent-orange: #ff9800;
    --accent-blue-light: #e3f2fd;
    --accent-orange-light: #fff3e0;
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-light: #999999;
    --border-light: #e0e0e0;
    --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-heavy: 0 8px 32px rgba(0, 0, 0, 0.2);
    
    /* Typography */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.875rem;
    --font-size-3xl: 2.25rem;
    --font-size-4xl: 3rem;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* Layout */
    --container-max-width: 1200px;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
}

/* ===================================
   UTILITY CLASSES
   =================================== */

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

.text-accent-blue {
    color: var(--accent-blue);
}

.text-accent-orange {
    color: var(--accent-orange);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ===================================
   BUTTON STYLES
   =================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

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

.btn-primary:hover {
    background-color: #1565c0;
    border-color: #1565c0;
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-secondary {
    background-color: transparent;
    color: var(--accent-blue);
    border-color: var(--accent-blue);
}

.btn-secondary:hover {
    background-color: var(--accent-blue);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

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

/* ===================================
   HEADER & NAVIGATION
   =================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition);
}

.navbar {
    padding: var(--space-md) 0;
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: var(--font-size-xl);
}

.logo-icon {
    width: 32px;
    height: 32px;
    margin-right: var(--space-sm);
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: var(--space-2xl);
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-menu a:hover {
    color: var(--accent-blue);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-blue);
    transition: var(--transition);
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-download {
    display: flex;
    align-items: center;
}

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

.hamburger-line {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    margin: 2px 0;
    transition: var(--transition);
}

/* ===================================
   HERO SECTION
   =================================== */

.hero {
    padding: calc(80px + var(--space-4xl)) 0 var(--space-4xl);
    background: linear-gradient(135deg, var(--primary-white) 0%, var(--accent-blue-light) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
}

.hero-tagline {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
    line-height: 1.5;
}

.hero-cta {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-start;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.machinery-svg {
    width: 100%;
    max-width: 400px;
    height: auto;
}

.animated-element {
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* ===================================
   SECTION STYLES
   =================================== */

.section-header {
    text-align: center;
    margin-bottom: var(--space-4xl);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===================================
   FEATURES SECTION
   =================================== */

.features {
    padding: var(--space-4xl) 0;
    background-color: var(--primary-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-2xl);
}

.feature-card {
    background: var(--primary-white);
    border-radius: var(--border-radius-lg);
    padding: var(--space-2xl);
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    border: 1px solid var(--border-light);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-medium);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-blue-light);
    border-radius: 50%;
}

.feature-icon svg {
    width: 32px;
    height: 32px;
}

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===================================
   SCREENSHOTS SECTION
   =================================== */

.screenshots {
    padding: var(--space-4xl) 0;
    background: linear-gradient(135deg, var(--accent-blue-light) 0%, var(--primary-white) 100%);
}

.screenshots-carousel {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 80px;
}

.carousel-container {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius-lg);
}

.carousel-track {
    display: flex;
    transition: transform 0.5s ease;
}

.screenshot-slide {
    min-width: 100%;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.screenshot-slide.active {
    opacity: 1;
}

.screenshot-card {
    background: var(--primary-white);
    border-radius: var(--border-radius-lg);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-medium);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 500px;
}

.screenshot-placeholder {
    background: linear-gradient(135deg, #f5f5f5 0%, #e0e0e0 100%);
    border-radius: var(--border-radius);
    padding: var(--space-2xl);
    margin-bottom: var(--space-lg);
    min-height: 400px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.screenshot-placeholder h4 {
    font-size: var(--font-size-xl);
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
}

.placeholder-content {
    width: 100%;
    max-width: 300px;
}

/* Dashboard placeholder styles */
.dashboard .chart-placeholder {
    width: 100%;
    height: 120px;
    background: var(--accent-blue);
    border-radius: var(--border-radius);
    margin-bottom: var(--space-lg);
    opacity: 0.3;
}

.dashboard .stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.dashboard .stat-item {
    height: 60px;
    background: var(--accent-orange);
    border-radius: var(--border-radius);
    opacity: 0.3;
}

/* Projects placeholder styles */
.projects .project-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.projects .project-item {
    height: 40px;
    background: var(--accent-blue);
    border-radius: var(--border-radius);
    opacity: 0.3;
}

/* Equipment placeholder styles */
.equipment .equipment-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.equipment .equipment-item {
    height: 80px;
    background: var(--accent-orange);
    border-radius: var(--border-radius);
    opacity: 0.3;
}

/* Mobile placeholder styles */
.mobile .mobile-screen {
    width: 200px;
    height: 300px;
    background: var(--primary-white);
    border-radius: 20px;
    border: 8px solid var(--text-primary);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    margin: 0 auto;
}

.mobile .mobile-header {
    height: 60px;
    background: var(--accent-blue);
    opacity: 0.8;
}

.mobile .mobile-content {
    flex: 1;
    background: #f5f5f5;
}

.mobile .mobile-nav {
    height: 50px;
    background: var(--accent-orange);
    opacity: 0.8;
}

.screenshot-caption {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    font-weight: 500;
}

/* App Screenshot Styles */
.app-screenshot {
    width: 100%;
    max-width: 300px;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-medium);
    margin: 0 auto var(--space-lg);
    display: block;
    object-fit: cover;
}

/* Carousel Controls */
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(25, 118, 210, 0.9);
    color: white;
    border: 3px solid var(--primary-white);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    z-index: 10;
    box-shadow: var(--shadow-medium);
}

.carousel-btn:hover {
    background: var(--accent-blue);
    color: white;
    transform: translateY(-50%) scale(1.15);
    box-shadow: var(--shadow-heavy);
}

.carousel-prev {
    left: 10px;
}

.carousel-next {
    right: 10px;
}

.carousel-btn svg {
    width: 28px;
    height: 28px;
}

.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-xl);
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--accent-blue);
    background: transparent;
    cursor: pointer;
    transition: var(--transition);
}

.indicator.active,
.indicator:hover {
    background: var(--accent-blue);
}

/* ===================================
   ABOUT SECTION
   =================================== */

.about {
    padding: var(--space-4xl) 0;
    background-color: var(--primary-white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
}

.about-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    line-height: 1.7;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    margin-top: var(--space-2xl);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--accent-blue);
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.about-illustration svg {
    width: 100%;
    max-width: 300px;
}

/* ===================================
   HOW IT WORKS SECTION
   =================================== */

.how-it-works {
    padding: var(--space-4xl) 0;
    background: linear-gradient(135deg, var(--accent-orange-light) 0%, var(--primary-white) 100%);
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-2xl);
}

.step {
    text-align: center;
    padding: var(--space-xl);
    background: var(--primary-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    position: relative;
}

.step:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.step-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    background: var(--accent-orange-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-icon svg {
    width: 40px;
    height: 40px;
}

.step-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.step-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===================================
   DOWNLOAD SECTION
   =================================== */

.download {
    padding: var(--space-4xl) 0;
    background: linear-gradient(135deg, var(--accent-blue-light) 0%, var(--primary-white) 100%);
}

.download-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
}

.download-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
    line-height: 1.7;
}

.download-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.download-feature {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-weight: 500;
    color: var(--text-primary);
}

.download-buttons {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xl);
}

.download-btn-container {
    text-align: center;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg) var(--space-2xl);
    background: var(--primary-white);
    border: 2px solid var(--border-light);
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    transition: var(--transition);
    box-shadow: var(--shadow-light);
    min-width: 200px;
}

.download-btn.coming-soon-btn {
    cursor: not-allowed;
    opacity: 0.7;
}



.download-btn-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.download-main {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.download-sub {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.coming-soon-note {
    padding: var(--space-md);
    background: var(--accent-orange-light);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--accent-orange);
    max-width: 500px;
    text-align: center;
}

.coming-soon-note p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin: 0;
}

.coming-soon-badge {
    display: inline-block;
    background: var(--accent-orange);
    color: white;
    padding: var(--space-xs) var(--space-sm);
    border-radius: 20px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-left: var(--space-md);
    position: relative;
    top: -2px;
}

/* ===================================
   CONTACT SECTION
   =================================== */

.contact {
    padding: var(--space-4xl) 0;
    background-color: var(--primary-white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: start;
}

.contact-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
    line-height: 1.7;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--accent-blue-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-method h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.contact-method p {
    color: var(--text-secondary);
}

/* Form Styles */
.contact-form {
    background: var(--primary-white);
    border-radius: var(--border-radius-lg);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.form-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xl);
    text-align: center;
}

.form-group {
    margin-bottom: var(--space-lg);
}

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

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--space-md);
    border: 2px solid var(--border-light);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-family: inherit;
    transition: var(--transition);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(25, 118, 210, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* Center submit button in contact form */
.contact-form .btn {
    align-self: center;
    margin-top: var(--space-md);
}

/* ===================================
   FOOTER
   =================================== */

.footer {
    background-color: var(--text-primary);
    color: white;
    padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: var(--space-4xl);
    margin-bottom: var(--space-2xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: var(--space-lg);
}

.footer-logo .logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.footer-description {
    color: #cccccc;
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2xl);
}

.footer-heading {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: white;
}

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

.footer-list li {
    margin-bottom: var(--space-sm);
}

.footer-list a {
    color: #cccccc;
    text-decoration: none;
    transition: var(--transition);
}

.footer-list a:hover {
    color: var(--accent-blue);
}

.social-links {
    display: flex;
    gap: var(--space-md);
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--accent-blue);
    transform: translateY(-2px);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer-bottom {
    border-top: 1px solid #444;
    padding-top: var(--space-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-lg);
}

.footer-copyright {
    color: #cccccc;
}

.footer-legal {
    display: flex;
    gap: var(--space-lg);
}

.footer-legal a {
    color: #cccccc;
    text-decoration: none;
    transition: var(--transition);
}

.footer-legal a:hover {
    color: var(--accent-blue);
}

/* ===================================
   ANIMATIONS & EFFECTS
   =================================== */

/* Fade-up animation for scroll reveals */
[data-aos="fade-up"] {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

[data-aos="fade-up"].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

/* Loading animation for buttons */
.btn:active {
    transform: scale(0.98);
}

/* Smooth scrolling enhancement */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */

/* Tablet Styles */
@media (max-width: 1024px) {
    :root {
        --font-size-4xl: 2.5rem;
        --font-size-3xl: 2rem;
        --space-4xl: 4rem;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-2xl);
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .download-content {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .screenshots-carousel {
        padding: 0 60px;
    }
    
    .carousel-prev {
        left: 5px;
    }
    
    .carousel-next {
        right: 5px;
    }
    
    .carousel-btn {
        width: 55px;
        height: 55px;
    }
}

/* Mobile Styles */
@media (max-width: 768px) {
    :root {
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
        --font-size-2xl: 1.5rem;
        --space-4xl: 3rem;
        --space-3xl: 2rem;
        --space-2xl: 1.5rem;
    }
    
    .container {
        padding: 0 var(--space-md);
    }
    
    /* Navigation */
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--primary-white);
        flex-direction: column;
        padding: var(--space-lg);
        box-shadow: var(--shadow-medium);
        border-top: 1px solid var(--border-light);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-download {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    /* Hero */
    .hero {
        padding: calc(80px + var(--space-2xl)) 0 var(--space-2xl);
        min-height: auto;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
    
    /* Features */
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    /* Screenshots */
    .carousel-btn {
        display: none;
    }
    
    .screenshot-placeholder {
        min-height: 300px;
        padding: var(--space-lg);
    }
    
    .app-screenshot {
        max-width: 250px;
    }
    
    .screenshot-card {
        min-height: 400px;
        padding: var(--space-lg);
    }
    
    .mobile .mobile-screen {
        width: 150px;
        height: 250px;
    }
    
    /* About */
    .about-stats {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
        text-align: center;
    }
    
    /* Steps */
    .steps-container {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    /* Footer */
    .footer-links {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-legal {
        justify-content: center;
    }
}

/* Small Mobile Styles */
@media (max-width: 480px) {
    :root {
        --font-size-4xl: 1.75rem;
        --font-size-3xl: 1.5rem;
        --space-lg: 1rem;
        --space-xl: 1.25rem;
        --space-2xl: 1.5rem;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-tagline {
        font-size: var(--font-size-lg);
    }
    
    .screenshot-placeholder {
        min-height: 250px;
        padding: var(--space-md);
    }
    
    .app-screenshot {
        max-width: 200px;
    }
    
    .screenshot-card {
        min-height: 350px;
        padding: var(--space-md);
    }
    
    .mobile .mobile-screen {
        width: 120px;
        height: 200px;
    }
    
    .form-title,
    .section-title {
        font-size: var(--font-size-2xl);
    }
}

/* High DPI Display Optimization */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .logo-icon,
    .feature-icon svg,
    .step-icon svg {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    /* Optional: Add dark mode styles if needed */
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .animated-element {
        animation: none;
    }
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .carousel-btn,
    .carousel-indicators,
    .btn {
        display: none !important;
    }
    
    .hero,
    .features,
    .about,
    .how-it-works,
    .contact {
        page-break-inside: avoid;
    }
}