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

:root {
    --primary-black: #000000;
    --primary-white: #ffffff;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
    
    /* Enhanced Liquid Glass Variables */
    --glass-bg: rgba(255, 255, 255, 0.08);
    --glass-bg-hover: rgba(255, 255, 255, 0.12);
    --glass-bg-strong: rgba(255, 255, 255, 0.15);
    --glass-border: rgba(255, 255, 255, 0.15);
    --glass-border-hover: rgba(255, 255, 255, 0.25);
    --glass-border-strong: rgba(255, 255, 255, 0.3);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    --glass-shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.5);
    --glass-shadow-strong: 0 20px 60px rgba(0, 0, 0, 0.6);
    --glass-blur: blur(16px);
    --glass-blur-strong: blur(24px);
    --glass-blur-ultra: blur(32px);
    
    /* Glass Reflection Variables */
    --glass-reflection: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    --glass-shimmer: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.1) 50%, transparent 100%);
    --glass-glow: 0 0 20px rgba(255, 255, 255, 0.1);
    
    /* Gradient Backgrounds */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-tertiary: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-dark: linear-gradient(135deg, #0c0c0c 0%, #1a1a1a 50%, #0f0f0f 100%);
    
    --container-width: 1200px;
    --section-padding: 120px 0;
    --border-radius: 16px;
    --border-radius-lg: 24px;
    --shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--primary-white);
    background: var(--gradient-dark);
    background-attachment: fixed;
    overflow-x: hidden;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Glassmorphism Utility Classes */
.glass {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    transition: var(--transition-smooth);
}

.glass:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    box-shadow: var(--glass-shadow-hover);
    transform: translateY(-2px);
}

.glass-strong {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: var(--glass-blur-strong);
    -webkit-backdrop-filter: var(--glass-blur-strong);
    border: 1px solid var(--glass-border-hover);
    box-shadow: var(--glass-shadow-hover);
}

.glass-button {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.glass-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.glass-button:hover::before {
    left: 100%;
}

.glass-button:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    box-shadow: var(--glass-shadow-hover);
    transform: translateY(-3px);
}

/* Language Toggle */
.language-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
}

.lang-btn {
    background: var(--gray-800);
    border: 1px solid var(--gray-600);
    color: var(--primary-white);
    padding: 8px 16px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.lang-btn:hover {
    background: var(--gray-700);
    transform: translateY(-2px);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur-strong);
    -webkit-backdrop-filter: var(--glass-blur-strong);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    z-index: 999;
    padding: 20px 0;
    transition: var(--transition-smooth);
    position: relative;
}

.navbar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--glass-reflection);
    pointer-events: none;
    z-index: -1;
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 600;
}

.logo-icon {
    font-size: 24px;
    color: var(--primary-white);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-link {
    color: var(--gray-300);
    text-decoration: none;
    font-weight: 400;
    transition: var(--transition);
    position: relative;
}

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

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

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

.nav-cta {
    background: var(--glass-bg-strong);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    color: var(--primary-white);
    border: 1px solid var(--glass-border);
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.nav-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--glass-shimmer);
    transition: left 0.6s ease;
}

.nav-cta:hover::before {
    left: 100%;
}

.nav-cta:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    box-shadow: var(--glass-glow);
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-black) 0%, var(--gray-900) 100%);
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(1px);
    z-index: 2;
}

.animated-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: 3;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: float 6s ease-in-out infinite;
}

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

.shape-2 {
    width: 300px;
    height: 300px;
    top: 60%;
    right: 15%;
    animation-delay: 2s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    bottom: 20%;
    left: 50%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-content {
    text-align: center;
    z-index: 4;
    max-width: 800px;
    padding: 0 20px;
    position: relative;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 30px;
    background: linear-gradient(135deg, var(--primary-white) 0%, var(--gray-400) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-300);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-cta {
    background: var(--glass-bg-strong);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    color: var(--primary-white);
    border: 1px solid var(--glass-border-strong);
    padding: 18px 36px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition-smooth);
    animation: fadeInUp 1s ease-out 0.4s both;
    position: relative;
    overflow: hidden;
    box-shadow: var(--glass-shadow);
}

.hero-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--glass-shimmer);
    transition: left 0.6s ease;
}

.hero-cta::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--glass-reflection);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.hero-cta:hover::before {
    left: 100%;
}

.hero-cta:hover::after {
    opacity: 1;
}

.hero-cta:hover {
    transform: translateY(-3px);
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    box-shadow: var(--glass-shadow-hover), var(--glass-glow);
}

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

/* Section Styles */
section {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--primary-white);
}

.section-subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-white);
    margin-bottom: 20px;
}

.section-description {
    font-size: 1.1rem;
    color: var(--gray-300);
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about {
    background: var(--gray-900);
}

.about-text {
    font-size: 1.2rem;
    color: var(--gray-300);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.feature-item {
    text-align: center;
    padding: 40px 20px;
    background: var(--primary-black);
    border-radius: var(--border-radius);
    transition: var(--transition);
    border: 1px solid var(--gray-800);
}

.feature-item:hover {
    transform: translateY(-5px);
    border-color: var(--gray-600);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-white);
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.service-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--glass-reflection);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-white), var(--gray-400));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover::after {
    opacity: 1;
}

.service-card:hover {
    transform: translateY(-5px);
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    box-shadow: var(--glass-shadow-hover);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.service-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-white);
    margin-bottom: 15px;
}

.service-description {
    color: var(--gray-300);
    line-height: 1.7;
}

/* Case Studies Section */
.case-studies {
    background: var(--gray-900);
}

.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}

.case-study-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    transition: var(--transition-smooth);
    position: relative;
    text-decoration: none;
    color: inherit;
    display: block;
}

.case-study-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--glass-reflection);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: 1;
}

.case-study-card:hover::before {
    opacity: 1;
}

.case-study-card:hover {
    transform: translateY(-8px);
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    box-shadow: var(--glass-shadow-hover);
}

.clickable-card:hover {
    cursor: pointer;
}

.clickable-card:hover .case-study-title {
    color: var(--primary-white);
}

.clickable-card:hover .case-study-description {
    color: var(--gray-200);
}

.case-study-image {
    padding: 0;
    background: var(--glass-bg-strong);
    backdrop-filter: var(--glass-blur-strong);
    -webkit-backdrop-filter: var(--glass-blur-strong);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 200px;
    position: relative;
    z-index: 2;
    overflow: hidden;
}

.case-study-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease, filter 0.3s ease;
    filter: blur(1px) brightness(0.7);
}

.case-study-card:hover .case-study-img {
    transform: scale(1.05);
    filter: blur(1px) brightness(0.8);
}

.workflow-diagram {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.workflow-step {
    text-align: center;
    min-width: 80px;
}

.step-icon {
    font-size: 2rem;
    margin-bottom: 8px;
}

.step-text {
    font-size: 0.9rem;
    color: var(--gray-300);
    font-weight: 500;
}

.workflow-arrow {
    font-size: 1.5rem;
    color: var(--gray-400);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

.case-study-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-white);
    margin: 30px 30px 15px;
}

.case-study-description {
    color: var(--gray-300);
    margin: 0 30px 30px;
    line-height: 1.6;
}

/* Why Choose Us Section */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.advantage-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    transition: var(--transition-smooth);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--glass-reflection);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.advantage-card:hover::before {
    opacity: 1;
}

.advantage-card:hover {
    transform: translateY(-5px);
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    box-shadow: var(--glass-shadow-hover);
}

.advantage-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.advantage-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-white);
    margin-bottom: 15px;
}

.advantage-description {
    color: var(--gray-300);
    line-height: 1.7;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: var(--glass-blur-ultra);
    -webkit-backdrop-filter: var(--glass-blur-ultra);
}

.modal-content {
    position: relative;
    background: var(--glass-bg-strong);
    backdrop-filter: var(--glass-blur-strong);
    -webkit-backdrop-filter: var(--glass-blur-strong);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    max-width: 500px;
    width: 90%;
    border: 1px solid var(--glass-border-strong);
    box-shadow: var(--glass-shadow-strong);
    animation: modalSlideIn 0.3s ease-out;
}

.modal-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--glass-reflection);
    border-radius: var(--border-radius-lg);
    pointer-events: none;
    z-index: -1;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--gray-400);
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--primary-white);
}

.modal-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-white);
    margin-bottom: 10px;
}

.modal-subtitle {
    color: var(--gray-300);
    margin-bottom: 30px;
    line-height: 1.6;
}

/* Form Styles */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background: var(--primary-black);
    border: 1px solid var(--gray-700);
    border-radius: var(--border-radius);
    color: var(--primary-white);
    font-size: 16px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-white);
}

.form-group label {
    position: absolute;
    top: 15px;
    left: 15px;
    color: var(--gray-400);
    font-size: 16px;
    transition: var(--transition);
    pointer-events: none;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: -10px;
    left: 10px;
    font-size: 12px;
    color: var(--primary-white);
    background: var(--gray-900);
    padding: 0 5px;
}

.form-submit {
    background: var(--glass-bg-strong);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    color: var(--primary-white);
    border: 1px solid var(--glass-border-strong);
    padding: 15px 30px;
    border-radius: var(--border-radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    box-shadow: var(--glass-shadow);
}

.form-submit::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--glass-shimmer);
    transition: left 0.6s ease;
}

.form-submit:hover::before {
    left: 100%;
}

.form-submit:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    box-shadow: var(--glass-shadow-hover), var(--glass-glow);
    transform: translateY(-2px);
}

.form-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.submit-loading {
    display: none;
}

.form-submit.loading .submit-text {
    display: none;
}

.form-submit.loading .submit-loading {
    display: inline;
}

/* Footer */
.footer {
    background: var(--primary-black);
    padding: 40px 0;
    border-top: 1px solid var(--gray-800);
}

.footer-text {
    text-align: center;
    color: var(--gray-400);
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    .services-grid,
    .case-studies-grid,
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .workflow-diagram {
        flex-direction: column;
        gap: 10px;
    }
    
    .workflow-arrow {
        transform: rotate(90deg);
    }
    
    .modal-content {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-content {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
}

/* Scroll animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}