/* ==================================
   빨간고양이단 주식회사 웹사이트 스타일
   Red Cat Studio Website Styles
================================== */

/* ========== CSS VARIABLES ========== */
:root {
    /* Red Cat Brand Colors */
    --primary-red: #E31E24;
    --primary-red-dark: #C41E24;
    --primary-red-light: #FF4D52;
    --secondary-red: #FF6B6B;
    --accent-orange: #FF8A00;
    
    /* Dark Theme Colors */
    --dark-bg: #1A1B2E;
    --dark-bg-secondary: #2D2E4A;
    --dark-bg-tertiary: #3A3B5C;
    --dark-surface: #242540;
    --dark-card: #2A2B47;
    
    /* Text Colors */
    --text-primary: #FFFFFF;
    --text-secondary: #B8B9D1;
    --text-muted: #8B8CA7;
    --text-dark: #2D3748;
    --text-light: #F7FAFC;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-red) 0%, var(--primary-red-dark) 100%);
    --gradient-hero: linear-gradient(135deg, var(--dark-bg) 0%, var(--dark-bg-secondary) 50%, var(--primary-red-dark) 100%);
    --gradient-card: linear-gradient(145deg, var(--dark-card) 0%, var(--dark-surface) 100%);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(227, 30, 36, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(227, 30, 36, 0.1), 0 2px 4px -1px rgba(227, 30, 36, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(227, 30, 36, 0.1), 0 4px 6px -2px rgba(227, 30, 36, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(227, 30, 36, 0.1), 0 10px 10px -5px rgba(227, 30, 36, 0.04);
    --shadow-glow: 0 0 20px rgba(227, 30, 36, 0.3);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Typography */
    --font-family: 'Noto Sans KR', -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;
    
    /* Animations */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* ========== RESET & BASE STYLES ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--dark-bg);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-normal);
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
    transition: var(--transition-normal);
}

ul, ol {
    list-style: none;
}

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

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 900;
    margin-bottom: var(--spacing-md);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

/* ========== LOADING SCREEN ========== */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-content {
    text-align: center;
    animation: pulse 2s ease-in-out infinite;
}

.red-cat-logo {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
}

.red-cat-logo .cat-icon {
    font-size: 4rem;
    color: var(--primary-red);
    animation: float 3s ease-in-out infinite;
}

.red-cat-logo .cat-mask {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 30px;
    height: 15px;
    background: var(--dark-bg);
    border-radius: 50%;
    opacity: 0.8;
}

.loading-text {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-red);
    margin-bottom: var(--spacing-lg);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(227, 30, 36, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-red);
    margin: 0 auto;
    animation: spin 1s linear infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

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

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ========== NAVIGATION ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(26, 27, 46, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(227, 30, 36, 0.1);
    z-index: 1000;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(26, 27, 46, 0.98);
    box-shadow: var(--shadow-lg);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
}

.nav-logo .logo-icon {
    font-size: var(--font-size-2xl);
    color: var(--primary-red);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-2xl);
}

.nav-link {
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    transition: var(--transition-normal);
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-normal);
}

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

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

.nav-toggle .bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-fast);
}

.nav-toggle.active .bar:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.nav-toggle.active .bar:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active .bar:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ========== HERO SECTION ========== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px 0 50px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-hero);
    z-index: -2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(227, 30, 36, 0.1) 0%, rgba(26, 27, 46, 0.8) 70%);
    z-index: -1;
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.floating-cat {
    position: absolute;
    font-size: 2rem;
    color: rgba(227, 30, 36, 0.1);
    animation: floatSlow 8s ease-in-out infinite;
}

.floating-cat-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-cat-2 {
    top: 60%;
    right: 15%;
    animation-delay: 2s;
}

.floating-cat-3 {
    bottom: 30%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes floatSlow {
    0%, 100% { 
        transform: translateY(0px) rotate(0deg);
        opacity: 0.1;
    }
    50% { 
        transform: translateY(-30px) rotate(10deg);
        opacity: 0.2;
    }
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    animation: fadeInUp 1s ease-out;
}

.hero-logo {
    margin-bottom: var(--spacing-2xl);
}

.hero-cat-icon {
    position: relative;
    font-size: 5rem;
    color: var(--primary-red);
    margin: 0 auto;
    display: inline-block;
    animation: bounce 2s ease-in-out infinite;
}

.hero-cat-icon .cat-mask {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 20px;
    background: var(--dark-bg);
    border-radius: 50%;
    opacity: 0.8;
}

.hero-title {
    margin-bottom: var(--spacing-2xl);
}

.title-main {
    display: block;
    font-size: var(--font-size-5xl);
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
}

.title-sub {
    display: block;
    font-size: var(--font-size-lg);
    font-weight: 400;
    color: var(--text-secondary);
    line-height: 1.8;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: rgba(45, 46, 74, 0.3);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(227, 30, 36, 0.2);
    transition: var(--transition-normal);
    min-width: 120px;
}

.feature-item:hover {
    transform: translateY(-5px);
    background: rgba(45, 46, 74, 0.5);
    box-shadow: var(--shadow-glow);
}

.feature-item i {
    font-size: var(--font-size-2xl);
    color: var(--primary-red);
}

.feature-item span {
    font-weight: 500;
    color: var(--text-primary);
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-3xl);
    flex-wrap: wrap;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg) var(--spacing-2xl);
    border-radius: var(--radius-xl);
    font-weight: 600;
    font-size: var(--font-size-lg);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.cta-button.primary {
    background: var(--gradient-primary);
    color: var(--text-light);
    box-shadow: var(--shadow-lg);
}

.cta-button.primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.cta-button.secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--primary-red);
}

.cta-button.secondary:hover {
    background: var(--primary-red);
    color: var(--text-light);
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-2xl);
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--text-muted);
    animation: fadeInUp 1.5s ease-out;
}

.scroll-mouse {
    width: 24px;
    height: 40px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    margin: 0 auto var(--spacing-sm);
    position: relative;
}

.scroll-wheel {
    width: 3px;
    height: 6px;
    background: var(--text-muted);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollWheel 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scrollWheel {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
}

/* ========== ABOUT SECTION ========== */
.about {
    padding: var(--spacing-3xl) 0;
    background: var(--dark-bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.info-card {
    background: var(--gradient-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    border: 1px solid rgba(227, 30, 36, 0.1);
    transition: var(--transition-normal);
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.info-card .card-icon {
    font-size: var(--font-size-3xl);
    color: var(--primary-red);
    margin-bottom: var(--spacing-lg);
}

.info-card h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.info-card ul {
    list-style: none;
}

.info-card li {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    line-height: 1.6;
}

.info-card strong {
    color: var(--primary-red);
}

.service-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.service-card {
    background: var(--gradient-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid rgba(227, 30, 36, 0.1);
    transition: var(--transition-normal);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-card .service-icon {
    font-size: var(--font-size-2xl);
    color: var(--primary-red);
    margin-bottom: var(--spacing-md);
}

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

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

/* ========== PROJECTS SECTION ========== */
.projects {
    padding: var(--spacing-3xl) 0;
    background: var(--dark-bg);
}

.projects-grid {
    display: grid;
    gap: var(--spacing-2xl);
}

.project-card {
    background: var(--gradient-card);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid rgba(227, 30, 36, 0.1);
    transition: var(--transition-normal);
}

.project-card.featured {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.project-image {
    position: relative;
    height: 300px;
    overflow: hidden;
}

.project-card.featured .project-image {
    height: auto;
    min-height: 400px;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(26, 27, 46, 0.8) 0%, rgba(227, 30, 36, 0.2) 100%);
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
    padding: var(--spacing-lg);
}

.project-tags {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.tag {
    background: rgba(227, 30, 36, 0.9);
    color: var(--text-light);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.project-content {
    padding: var(--spacing-2xl);
}

.project-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--primary-red);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.project-features {
    margin-bottom: var(--spacing-xl);
}

.project-features .feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.project-features .feature i {
    color: var(--primary-red);
    font-size: var(--font-size-sm);
}

.project-stats {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: space-between;
}

.stat {
    text-align: center;
    padding: var(--spacing-md);
    background: rgba(45, 46, 74, 0.3);
    border-radius: var(--radius-md);
    flex: 1;
}

.stat-number {
    font-size: var(--font-size-xl);
    font-weight: 900;
    color: var(--primary-red);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* ========== SERVICES SECTION ========== */
.services {
    padding: var(--spacing-3xl) 0;
    background: var(--dark-bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
}

.service-item {
    background: var(--gradient-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    border: 1px solid rgba(227, 30, 36, 0.1);
    transition: var(--transition-normal);
    text-align: center;
}

.service-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.service-item .service-icon {
    font-size: var(--font-size-3xl);
    color: var(--primary-red);
    margin-bottom: var(--spacing-lg);
}

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

.service-item p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.service-item ul {
    text-align: left;
}

.service-item li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    position: relative;
    padding-left: var(--spacing-lg);
}

.service-item li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-red);
}

/* ========== TECHNOLOGY SECTION ========== */
.technology {
    padding: var(--spacing-3xl) 0;
    background: var(--dark-bg);
}

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

.tech-category {
    background: var(--gradient-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    border: 1px solid rgba(227, 30, 36, 0.1);
    transition: var(--transition-normal);
}

.tech-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

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

.tech-items {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tech-item {
    background: rgba(45, 46, 74, 0.5);
    color: var(--text-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: var(--transition-normal);
}

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

/* ========== CONTACT SECTION ========== */
.contact {
    padding: var(--spacing-3xl) 0;
    background: var(--dark-bg-secondary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.contact-card {
    background: var(--gradient-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    border: 1px solid rgba(227, 30, 36, 0.1);
    margin-bottom: var(--spacing-lg);
    transition: var(--transition-normal);
}

.contact-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.contact-card .card-icon {
    font-size: var(--font-size-2xl);
    color: var(--primary-red);
    margin-bottom: var(--spacing-md);
}

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

.info-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.info-item i {
    color: var(--primary-red);
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

.info-item div strong {
    display: block;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.info-item div span {
    color: var(--text-secondary);
    line-height: 1.5;
}

.info-item div span a {
    color: var(--primary-red);
    text-decoration: underline;
}

.info-item div span a:hover {
    color: var(--primary-red-light);
}

.contact-form-container {
    background: var(--gradient-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    border: 1px solid rgba(227, 30, 36, 0.1);
}

.contact-form h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    color: var(--text-primary);
    text-align: center;
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--dark-surface);
    border: 1px solid rgba(227, 30, 36, 0.2);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: var(--font-size-base);
    transition: var(--transition-normal);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-red);
    box-shadow: 0 0 0 3px rgba(227, 30, 36, 0.1);
}

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

.submit-button {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg) var(--spacing-xl);
    background: var(--gradient-primary);
    color: var(--text-light);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--font-size-lg);
    transition: var(--transition-normal);
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* ========== FOOTER ========== */
.footer {
    background: var(--dark-bg);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    border-top: 1px solid rgba(227, 30, 36, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-2xl);
}

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

.footer-logo .logo-icon {
    font-size: var(--font-size-2xl);
    color: var(--primary-red);
}

.company-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
}

.company-tagline {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.footer-quote {
    color: var(--text-secondary);
    font-style: italic;
    line-height: 1.6;
    max-width: 600px;
}

.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(--primary-red);
    margin-bottom: var(--spacing-md);
}

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

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

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(45, 46, 74, 0.5);
}

.footer-info p {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(227, 30, 36, 0.1);
    border-radius: 50%;
    color: var(--primary-red);
    transition: var(--transition-normal);
}

.social-link:hover {
    background: var(--primary-red);
    color: var(--text-light);
    transform: translateY(-2px);
}

/* ========== BACK TO TOP BUTTON ========== */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--text-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-normal);
    z-index: 1000;
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

/* ========== RESPONSIVE DESIGN ========== */
@media (max-width: 1024px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--dark-bg);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: var(--spacing-3xl);
        gap: var(--spacing-xl);
        transition: var(--transition-normal);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-features {
        gap: var(--spacing-lg);
    }

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

    .service-cards {
        grid-template-columns: 1fr;
    }

    .project-card.featured {
        grid-template-columns: 1fr;
    }

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

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

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }

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

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

    .hero-features {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .cta-button {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

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

    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }

    .project-stats {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

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

@media (max-width: 480px) {
    .hero-features {
        grid-template-columns: 1fr;
    }

    .feature-item {
        min-width: auto;
    }

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

    .hero-cat-icon {
        font-size: 4rem;
    }

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

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

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

/* ========== ACCESSIBILITY ========== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media (prefers-contrast: high) {
    :root {
        --text-secondary: #E2E8F0;
        --text-muted: #CBD5E0;
        --shadow-glow: 0 0 20px rgba(255, 255, 255, 0.3);
    }
}

/* ========== PRINT STYLES ========== */
@media print {
    .navbar,
    .scroll-indicator,
    .back-to-top,
    .floating-elements {
        display: none !important;
    }

    .hero {
        min-height: auto;
        padding: var(--spacing-xl) 0;
    }

    body {
        background: white !important;
        color: black !important;
    }

    .section-title {
        color: #E31E24 !important;
        -webkit-text-fill-color: #E31E24 !important;
    }
}

/* ========== PERFORMANCE OPTIMIZATIONS ========== */
.hero-background,
.project-image img {
    will-change: transform;
}

.floating-cat,
.loading-content,
.hero-cat-icon {
    will-change: transform, opacity;
}

/* Force GPU acceleration for smooth animations */
.nav-menu,
.project-card,
.service-item,
.contact-card {
    transform: translateZ(0);
}