@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    /* Refined HSL Color System */
    --primary-hsl: 217, 33%, 12%;
    --secondary-hsl: 158, 80%, 45%;
    --accent-hsl: 224, 71%, 45%;
    --text-hsl: 210, 40%, 96%;
    --light-text-hsl: 210, 20%, 70%;
    
    --primary: hsl(var(--primary-hsl));
    --secondary: hsl(var(--secondary-hsl));
    --accent: hsl(var(--accent-hsl));
    --bg-dark: hsl(217, 33%, 8%);
    --bg-card: hsla(0, 0%, 100%, 0.03);
    --glass-border: hsla(0, 0%, 100%, 0.08);
    
    --transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    --shadow-md: 0 8px 32px 0 hsla(0, 0%, 0%, 0.3);
    --shadow-lg: 0 16px 48px 0 hsla(0, 0%, 0%, 0.5);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: hsl(var(--text-hsl));
    line-height: 1.6;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

h1, h2, h3, .logo {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 800;
}

/* Glassmorphism Components */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.glass-card:hover {
    background: hsla(0, 0%, 100%, 0.06);
    border-color: hsla(var(--secondary-hsl), 0.4);
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

/* Gradient Text */
.gradient-text {
    background: linear-gradient(135deg, #fff 0%, hsl(var(--secondary-hsl)) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
    background: hsla(var(--secondary-hsl), 0.3);
    border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--secondary);
}

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition);
}

header.scrolled {
    padding: 0.8rem 0;
    background: hsla(var(--primary-hsl), 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

nav {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    letter-spacing: -1px;
    color: var(--secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo i {
    font-size: 1.4rem;
}

.nav-links {
    display: flex;
    gap: 3rem;
    align-items: center;
}

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    color: hsl(var(--light-text-hsl));
    position: relative;
}

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

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

.nav-link:hover, .nav-link.active {
    color: #fff;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 0 2rem;
    overflow: hidden;
    background: radial-gradient(circle at 80% 20%, hsla(var(--secondary-hsl), 0.1), transparent),
                radial-gradient(circle at 20% 80%, hsla(var(--accent-hsl), 0.1), transparent);
}

.hero-content {
    max-width: 800px;
    z-index: 2;
}

.hero h1 {
    font-size: clamp(3rem, 8vw, 5.5rem);
    line-height: 0.9;
    margin-bottom: 2rem;
}

.hero p {
    font-size: 1.25rem;
    color: hsl(var(--light-text-hsl));
    margin-bottom: 3rem;
    max-width: 600px;
}

.cta-group {
    display: flex;
    gap: 1.5rem;
}

/* Buttons */
.btn {
    padding: 1.2rem 2.8rem;
    border-radius: 12px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
}

.btn-primary {
    background: var(--secondary);
    color: var(--primary);
}

.btn-primary:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px hsla(var(--secondary-hsl), 0.4);
}

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

.btn-outline:hover {
    border-color: var(--secondary);
    background: hsla(var(--secondary-hsl), 0.05);
}

/* Sections */
section {
    padding: 10rem 2rem;
    max-width: 1300px;
    margin: 0 auto;
}

.section-tag {
    color: var(--secondary);
    text-transform: uppercase;
    font-weight: 800;
    letter-spacing: 3px;
    font-size: 0.8rem;
    display: block;
    margin-bottom: 1rem;
    text-align: center;
}

.section-title {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 5rem;
}

/* Service Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
}

.service-card {
    padding: 3.5rem;
    text-align: left;
}

.icon-box {
    width: 70px;
    height: 70px;
    background: hsla(var(--secondary-hsl), 0.1);
    color: var(--secondary);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 2rem;
    transition: var(--transition);
}

.service-card:hover .icon-box {
    background: var(--secondary);
    color: var(--primary);
    transform: rotateY(180deg);
}

/* Form Styles */
.form-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
}

.contact-form {
    padding: 4rem;
}

.input-group {
    margin-bottom: 2rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.8rem;
    font-weight: 600;
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 1.2rem;
    background: hsla(0, 0%, 100%, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: #fff;
    font-family: inherit;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--secondary);
    background: hsla(0, 0%, 100%, 0.06);
}

/* Animations */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.23, 1, 0.32, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
    .hero h1 { font-size: 4rem; }
    .form-container { grid-template-columns: 1fr; gap: 4rem; }
}

@media (max-width: 768px) {
    header { padding: 1rem 0; }
    .nav-links { display: none; }
    .hero { text-align: center; }
    .cta-group { justify-content: center; flex-direction: column; }
    .section-title { font-size: 2.2rem; }
    .service-card { padding: 2.5rem; }
}