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

:root {
    /* Primary color palette: White, Black, and BC9C22 */
    --primary-color: #BC9C22;
    --primary-light: rgba(188, 156, 34, 0.1);
    --primary-dark: rgba(188, 156, 34, 0.8);

    /* Light theme colors */
    --text-primary: #000000;
    --text-secondary: rgba(0, 0, 0, 0.7);
    --text-light: rgba(0, 0, 0, 0.5);
    --background: #FFFFFF;
    --background-secondary: rgba(188, 156, 34, 0.03);
    --background-dark: #000000;
    --surface: #FFFFFF;
    --border: rgba(0, 0, 0, 0.1);
    --border-light: rgba(0, 0, 0, 0.05);

    /* Simplified gradients using only our three colors */
    --gradient-primary: linear-gradient(135deg, #BC9C22 0%, rgba(188, 156, 34, 0.9) 100%);
    --gradient-hero: linear-gradient(135deg, #FFFFFF 0%, rgba(188, 156, 34, 0.05) 100%);
    --gradient-background: linear-gradient(135deg, #FFFFFF 0%, rgba(188, 156, 34, 0.03) 100%);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --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: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 4rem;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-base: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-base: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-base: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 200ms ease-in-out;
    --transition-slow: 300ms ease-in-out;
}

/* Dark theme variables */
[data-theme="dark"] {
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-light: rgba(255, 255, 255, 0.5);
    --background: #000000;
    --background-secondary: rgba(188, 156, 34, 0.05);
    --background-dark: #000000;
    --surface: #111111;
    --border: rgba(255, 255, 255, 0.1);
    --border-light: rgba(255, 255, 255, 0.05);

    --gradient-hero: linear-gradient(135deg, #000000 0%, rgba(188, 156, 34, 0.05) 100%);
    --gradient-background: linear-gradient(135deg, #000000 0%, rgba(188, 156, 34, 0.03) 100%);

    /* Dark theme shadows */
    --shadow-sm: 0 1px 2px 0 rgba(255, 255, 255, 0.05);
    --shadow-base: 0 1px 3px 0 rgba(255, 255, 255, 0.1), 0 1px 2px 0 rgba(255, 255, 255, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(255, 255, 255, 0.1), 0 2px 4px -1px rgba(255, 255, 255, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(255, 255, 255, 0.1), 0 4px 6px -2px rgba(255, 255, 255, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(255, 255, 255, 0.1), 0 10px 10px -5px rgba(255, 255, 255, 0.04);
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    overflow-x: hidden;
    transition: background-color var(--transition-base), color var(--transition-base);
}

/* Global transition for theme switching */
* {
    transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

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

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-base);
}

h1 {
    font-size: var(--font-size-5xl);
}

h2 {
    font-size: var(--font-size-4xl);
}

h3 {
    font-size: var(--font-size-3xl);
}

h4 {
    font-size: var(--font-size-2xl);
}

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

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

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
    min-height: 48px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: var(--surface);
    color: var(--text-primary);
    border: 2px solid var(--border);
    box-shadow: var(--shadow-sm);
}

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

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

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

/* Contact form submit button centering */
.contact-form .btn {
    display: block;
    margin: 0 auto;
}

/* Gradient Text */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-base);
    color: var(--text-primary);
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-base) var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    font-size: var(--font-size-xl);
    font-weight: 800;
}

.logo-text {
    color: var(--text-primary);
}

.logo-accent {
    color: var(--primary-color);
    margin-left: 4px;
}

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

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

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

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

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

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: none;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: var(--font-size-sm);
}

.theme-toggle:hover {
    background: var(--background-secondary);
    color: var(--primary-color);
    transform: translateY(-1px);
}

/* Dark theme navbar adjustments */
[data-theme="dark"] .navbar {
    background: rgba(0, 0, 0, 0.95);
}

[data-theme="dark"] .navbar.scrolled {
    background: rgba(0, 0, 0, 0.98);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: var(--gradient-hero);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.3;
    animation: float 6s ease-in-out infinite;
}

.gradient-orb-1 {
    width: 300px;
    height: 300px;
    background: var(--primary-color);
    top: 10%;
    right: 10%;
    animation-delay: 0s;
}

.gradient-orb-2 {
    width: 400px;
    height: 400px;
    background: rgba(0, 0, 0, 0.05);
    bottom: 20%;
    left: 10%;
    animation-delay: 2s;
}

.gradient-orb-3 {
    width: 200px;
    height: 200px;
    background: var(--primary-color);
    top: 60%;
    right: 30%;
    animation-delay: 4s;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0px) rotate(0deg);
    }

    50% {
        transform: translateY(-20px) rotate(180deg);
    }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    height: 500px;
}

.floating-card {
    position: absolute;
    background: var(--surface);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
    animation: floatCard 4s ease-in-out infinite;
}

.card-1 {
    top: 20%;
    left: 10%;
    width: 200px;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: 20%;
    width: 180px;
    animation-delay: 1.5s;
}

.card-3 {
    bottom: 20%;
    left: 30%;
    width: 190px;
    animation-delay: 3s;
}

@keyframes floatCard {

    0%,
    100% {
        transform: translateY(0px) rotateY(0deg);
    }

    50% {
        transform: translateY(-15px) rotateY(5deg);
    }
}

.card-header {
    display: flex;
    justify-content: flex-end;
    margin-bottom: var(--spacing-base);
}

.card-dots {
    display: flex;
    gap: 4px;
}

.card-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border);
}

.card-dots span:first-child {
    background: var(--primary-color);
}

.card-dots span:nth-child(2) {
    background: rgba(0, 0, 0, 0.3);
}

.card-dots span:last-child {
    background: rgba(0, 0, 0, 0.6);
}

.feature-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-light);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-base);
    color: var(--primary-color);
    font-size: var(--font-size-lg);
}

.card-content h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.card-content p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
}

/* About Section */
.about {
    padding: var(--spacing-4xl) 0;
    background: var(--background-secondary);
}

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

.about-item {
    margin-bottom: var(--spacing-2xl);
}

.about-item h3 {
    font-size: var(--font-size-xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-base);
}

.about-item p {
    font-size: var(--font-size-base);
    line-height: 1.7;
}

.about-stats {
    background: var(--surface);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
}

.about-principles-container {
    background: var(--surface);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
}

.about-principles {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.principle-card {
    text-align: center;
    padding: var(--spacing-lg);
}

.principle-icon {
    margin-bottom: var(--spacing-base);
}

.principle-icon i {
    font-size: var(--font-size-2xl);
    color: var(--primary-color);
}

.principle-card h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.principle-card p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

.stat-item {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.stat-item:last-child {
    margin-bottom: 0;
}

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

/* Products Section */
.products {
    padding: var(--spacing-4xl) 0;
}

.product-showcase {
    background: var(--surface);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
}

.product-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 600px;
}

.product-info {
    padding: var(--spacing-3xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.product-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-base);
    background: var(--primary-light);
    color: var(--primary-color);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-base);
    width: fit-content;
}

.product-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--spacing-base);
}

.product-description {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
}

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

.feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.feature i {
    color: var(--primary-color);
    width: 16px;
}

.product-buttons {
    display: flex;
    gap: var(--spacing-base);
    flex-wrap: wrap;
}

/* App Screenshots Preview */
.product-preview {
    background: var(--background-light);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
}

.app-screenshots {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xl);
}

.screenshot-container {
    position: relative;
    width: 300px;
    height: 650px;
    border-radius: 30px;
    overflow: hidden;
    box-shadow:
        0 0 0 2px rgba(0, 0, 0, 0.1),
        0 20px 40px rgba(0, 0, 0, 0.15),
        0 40px 80px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-base);
}

.screenshot-container:hover {
    transform: translateY(-5px);
    box-shadow:
        0 0 0 2px rgba(0, 0, 0, 0.15),
        0 25px 50px rgba(0, 0, 0, 0.2),
        0 50px 100px rgba(0, 0, 0, 0.15);
}

.app-screenshot {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    transition: opacity var(--transition-base);
}

.app-screenshot.dark-mode {
    opacity: 0;
}

.app-screenshot.light-mode {
    opacity: 1;
}

.screenshot-toggle {
    display: flex;
    background: var(--surface);
    border-radius: 50px;
    padding: 4px;
    gap: 4px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
}

.toggle-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    border: none;
    background: transparent;
    border-radius: 46px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
}

.toggle-btn:hover {
    color: var(--text-primary);
    background: var(--background-light);
}

.toggle-btn.active {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 2px 8px rgba(188, 156, 34, 0.3);
}

.toggle-btn i {
    font-size: 16px;
}

/* Responsive design for app screenshots */
@media (max-width: 768px) {
    .screenshot-container {
        width: 250px;
        height: 540px;
    }

    .app-screenshots {
        gap: var(--spacing-lg);
    }

    .product-preview {
        padding: var(--spacing-lg);
    }

    .toggle-btn {
        padding: 10px 16px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .screenshot-container {
        width: 220px;
        height: 476px;
    }

    .toggle-btn {
        padding: 8px 14px;
        font-size: 12px;
    }

    .toggle-btn i {
        font-size: 14px;
    }
}

/* Services Section */
.services {
    padding: var(--spacing-4xl) 0;
    background: var(--background-secondary);
}

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

.service-card {
    background: var(--surface);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

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

.service-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-light);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
    font-size: var(--font-size-xl);
}

.service-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-base);
}

.service-card p {
    font-size: var(--font-size-base);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.service-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.service-features span {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--background-secondary);
    border-radius: var(--radius-base);
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--text-secondary);
}

/* Technology Stack */
.tech-stack {
    padding: var(--spacing-4xl) 0;
}

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

.tech-category {
    text-align: center;
}

.tech-category h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.tech-items {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-base);
}

.tech-item {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.tech-item:hover {
    background: var(--primary-light);
    color: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* Contact Section */
.contact {
    padding: var(--spacing-4xl) 0;
    background: var(--background-secondary);
}

.contact-content {
    display: flex;
    justify-content: center;
    align-items: start;
}

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

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

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-light);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: var(--font-size-lg);
}

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

.contact-details p {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    margin: 0;
}

.contact-form {
    background: var(--surface);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 600px;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-base);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    transition: all var(--transition-base);
    background: var(--background);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

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

/* Contact form submit button centering */
.contact-form .btn {
    display: block;
    margin: 0 auto;
}

/* Dark theme specific adjustments */
[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group textarea {
    background: var(--surface);
    color: var(--text-primary);
    border-color: var(--border);
}

[data-theme="dark"] .form-group input::placeholder,
[data-theme="dark"] .form-group textarea::placeholder {
    color: var(--text-light);
}

/* Footer */
.footer {
    background: var(--background-dark);
    color: #fff;
    padding: var(--spacing-4xl) 0 var(--spacing-xl) 0;
}

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

.footer-brand {
    max-width: 300px;
}

.footer-brand .logo {
    margin-bottom: var(--spacing-base);
}

.footer-brand .logo-text,
.footer-brand .logo-accent {
    color: var(--surface);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-base);
}

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

.footer-section h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--surface);
    margin-bottom: var(--spacing-base);
}

.footer-section a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    margin-bottom: var(--spacing-sm);
    transition: color var(--transition-base);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--font-size-sm);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
}

/* Dark theme footer adjustments */
[data-theme="dark"] .footer {
    background: var(--background-dark);
}

[data-theme="dark"] .footer-brand .logo-text,
[data-theme="dark"] .footer-brand .logo-accent {
    color: var(--text-primary);
}

[data-theme="dark"] .footer-brand p {
    color: var(--text-secondary);
}

[data-theme="dark"] .footer-section h4 {
    color: var(--text-primary);
}

[data-theme="dark"] .footer-section a {
    color: var(--text-secondary);
}

[data-theme="dark"] .footer-section a:hover {
    color: var(--primary-color);
}

[data-theme="dark"] .footer-bottom {
    color: var(--text-light);
    border-top: 1px solid var(--border);
}

[data-theme="dark"] .footer-bottom p {
    color: var(--text-light);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--surface);
        flex-direction: column;
        padding: var(--spacing-xl);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }

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

    .nav-toggle {
        display: flex;
    }

    .nav-actions {
        gap: var(--spacing-sm);
    }

    .theme-toggle {
        width: 36px;
        height: 36px;
        font-size: 0.8rem;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .hero-visual {
        display: none;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .about-principles {
        grid-template-columns: 1fr;
        gap: var(--spacing-base);
    }

    .about-principles-container {
        padding: var(--spacing-lg);
    }

    .principle-card {
        padding: var(--spacing-base);
    }

    .product-content {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        justify-content: center;
    }

    .product-buttons {
        justify-content: center;
    }

    .container {
        padding: 0 var(--spacing-base);
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .tech-categories {
        grid-template-columns: 1fr;
    }

    .product-features {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .services-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .tech-categories {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .about-principles {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .about-principles-container {
        padding: var(--spacing-base);
    }

    .principle-card {
        padding: var(--spacing-sm);
    }

    .about-item {
        margin-bottom: var(--spacing-lg);
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

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

    .floating-card {
        width: 150px !important;
        padding: var(--spacing-base);
    }

    .feature-icon {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-base);
    }

    .card-content h3 {
        font-size: var(--font-size-base);
    }

    .card-content p {
        font-size: var(--font-size-xs);
    }
}

/* Extra small devices (very small phones) */
@media (max-width: 320px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-base);
    }

    .tech-categories {
        grid-template-columns: 1fr;
        gap: var(--spacing-base);
    }

    .about-content {
        gap: var(--spacing-lg);
    }

    .about-principles-container {
        padding: var(--spacing-sm);
    }

    .principle-card {
        padding: var(--spacing-xs);
    }

    .about-item {
        margin-bottom: var(--spacing-base);
    }

    .about-item h3 {
        font-size: var(--font-size-lg);
    }

    .about-item p {
        font-size: var(--font-size-sm);
    }

    .principle-card h4 {
        font-size: var(--font-size-base);
    }

    .principle-card p {
        font-size: var(--font-size-xs);
    }

    .service-card,
    .tech-category {
        padding: var(--spacing-base);
    }

    .hero-title {
        font-size: var(--font-size-2xl);
    }

    .section-title {
        font-size: var(--font-size-xl);
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Smooth scrolling offset for fixed navbar */
section {
    scroll-margin-top: 80px;
}