:root {
    /* Color Palette */
    --primary: #0284c7; /* Sky blue */
    --primary-light: #38bdf8;
    --primary-dark: #0369a1;
    --secondary: #0f172a; /* Slate 900 */
    --accent: #10b981; /* Emerald */
    --accent-dark: #059669;
    
    --bg-color: #f8fafc;
    --bg-light: #ffffff;
    --text-main: #334155;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    
    /* Typography */
    --font-sans: 'Inter', sans-serif;
    
    /* Variables */
    --container-width: 1200px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --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-float: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
}

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

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* Utility Classes */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section-padding {
    padding: 6rem 0;
}

.bg-light {
    background-color: var(--bg-light);
}

.text-left {
    text-align: left !important;
}

.w-100 {
    width: 100%;
}

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
    box-shadow: 0 4px 14px rgba(2, 132, 199, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(2, 132, 199, 0.6);
}

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

.btn-secondary:hover {
    background-color: var(--primary-light);
    color: white;
    border-color: var(--primary-light);
}

/* Header & Nav */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.header.scrolled {
    padding: 0.5rem 0;
    background-color: rgba(255, 255, 255, 0.98);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    transition: height 0.3s ease;
}

.header.scrolled .nav-container {
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary);
}

.logo i {
    color: var(--accent);
    font-size: 2rem;
}

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

.nav-list {
    display: flex;
    align-items: center;
    gap: 2rem;
}

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

.nav-link:not(.btn-primary)::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--primary);
    transition: var(--transition);
}

.nav-link:not(.btn-primary):hover::after {
    width: 100%;
}

.nav-link:not(.btn-primary):hover {
    color: var(--primary);
}

.nav-btn {
    padding: 0.6rem 1.5rem;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--secondary);
    cursor: pointer;
}

/* Hero Section */
.hero {
    padding: 10rem 0 6rem 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(56, 189, 248, 0.1) 0%, rgba(248, 250, 252, 0) 70%);
    z-index: -1;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--secondary);
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-title span {
    color: var(--primary);
    position: relative;
}

.hero-title span::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 8px;
    background-color: var(--accent);
    opacity: 0.3;
    z-index: -1;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 90%;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3.5rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
}

.stat h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 0.25rem;
}

.stat p {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 500;
}

.hero-image-wrapper {
    position: relative;
    border-radius: var(--radius-lg);
    z-index: 1;
}

.hero-image {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-float);
    position: relative;
    z-index: 2;
    animation: floating 6s ease-in-out infinite;
}

@keyframes floating {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
    100% { transform: translateY(0px); }
}

.image-decoration {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 3px solid var(--primary-light);
    border-radius: var(--radius-lg);
    top: 20px;
    left: 20px;
    z-index: 0;
}

/* Sections Global */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem auto;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-muted);
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background-color: var(--bg-light);
    border-radius: var(--radius-md);
    padding: 2.5rem 2rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

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

.service-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(2, 132, 199, 0.1);
    color: var(--primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background-color: var(--primary);
    color: white;
}

.service-card h3 {
    font-size: 1.25rem;
    color: var(--secondary);
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.service-link {
    color: var(--primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.service-link i {
    transition: transform 0.2s;
}

.service-link:hover i {
    transform: translateX(5px);
}

.hidden-service {
    display: none !important;
}

/* About Section */
.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image-standin {
    background: linear-gradient(135deg, #e0e7ff, #bae6fd);
    height: 500px;
    border-radius: var(--radius-lg);
    position: relative;
    box-shadow: inset 0 0 20px rgba(0,0,0,0.05);
}

.floating-card {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background-color: white;
    padding: 1.5rem;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 1rem;
    animation: floating 5s ease-in-out infinite alternate;
}

.floating-card i {
    font-size: 2.5rem;
    color: var(--accent);
}

.about-content p {
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.about-features {
    margin-top: 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.about-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    color: var(--secondary);
}

.about-features i {
    color: var(--accent);
    font-size: 1.25rem;
}

/* Contact Section */
.contact-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background-color: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.contact-info {
    background: linear-gradient(135deg, var(--secondary), #1e293b);
    color: white;
    padding: 4rem;
}

.contact-item {
    display: flex;
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.contact-icon {
    width: 40px;
    height: 40px;
    background-color: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--primary-light);
}

.contact-item h4 {
    margin-bottom: 0.25rem;
    font-weight: 600;
    color: white;
}

.contact-item p {
    color: #cbd5e1;
}

.contact-form {
    padding: 4rem;
    background-color: white;
}

.contact-form h3 {
    font-size: 1.5rem;
    color: var(--secondary);
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input, .form-group select {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
}

.form-group input:focus, .form-group select:focus {
    border-color: var(--primary);
}

/* Footer */
.footer {
    background-color: var(--secondary);
    color: #e2e8f0;
    padding: 5rem 0 0 0;
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-logo {
    color: white;
    margin-bottom: 1.5rem;
    display: inline-flex;
}

.footer-col p {
    margin-bottom: 1.5rem;
    color: #94a3b8;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background-color: rgba(255,255,255,0.1);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--primary);
    transform: translateY(-3px);
}

.footer-col h4 {
    color: white;
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.footer-col ul li {
    margin-bottom: 0.75rem;
}

.footer-col ul li a {
    color: #94a3b8;
}

.footer-col ul li a:hover {
    color: white;
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding: 1.5rem 0;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #64748b;
}

/* Responsive */
@media (max-width: 992px) {
    .hero-container, .about-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        margin: 0 auto 2rem auto;
    }
    
    .hero-buttons, .hero-stats {
        justify-content: center;
    }
    
    .section-title.text-left {
        text-align: center !important;
    }
    
    .about-features {
        text-align: left;
    }
    
    .contact-card {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-list {
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: white;
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow-md);
        clip-path: circle(0% at top right);
        transition: all 0.4s ease-out;
    }
    
    .nav-list.active {
        clip-path: circle(150% at top right);
    }
    
    .mobile-toggle {
        display: block;
    }
    
    .hero {
        padding: 8rem 0 4rem 0;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .contact-info, .contact-form {
        padding: 2rem;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
    }
}