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

:root {
    --primary-light: #F8FAFC;
    --primary-dark: #0F172A;
    --action-color: #2563EB;
    --action-hover: #1D4ED8;
    --accent-color: #F97316;
    --text-main: #1E293B;
    --text-muted: #64748B;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.3);
    --shadow-premium: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--primary-light);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Outfit', sans-serif;
    color: var(--primary-dark);
}

/* Glassmorphism Classes */
.glass-effect {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
}

/* Navigation */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: transparent;
}

header.scrolled {
    padding: 1rem 5%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    font-family: 'Outfit', sans-serif;
    color: var(--action-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

nav a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

nav a:hover { color: var(--action-color); }

/* Mobile Menu Button */
.hamburger {
    display: none;
    cursor: pointer;
    background: none;
    border: none;
    padding: 10px;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--primary-dark);
    margin: 5px 0;
    transition: var(--transition-smooth);
}

/* Mobile Nav Active */
@media (max-width: 992px) {
    nav ul {
        display: none;
        flex-direction: column;
        position: fixed;
        top: 0;
        right: 0;
        height: 100vh;
        width: 280px;
        background: white;
        padding: 80px 40px;
        box-shadow: -10px 0 30px rgba(0,0,0,0.1);
        z-index: 1000;
    }

    nav ul.nav-active { display: flex; }

    .hamburger { display: block; }
}

/* Hero Section */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 1rem 60px;
    background: radial-gradient(circle at top right, rgba(37, 99, 235, 0.08), transparent),
                radial-gradient(circle at bottom left, rgba(249, 115, 22, 0.05), transparent);
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(to bottom right, var(--primary-dark), #475569);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 3D Cards */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    padding: 2rem 0;
}

.service-card {
    padding: 3rem 2rem;
    border-radius: 24px;
    background: white;
    border: 1px solid #F1F5F9;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    transition: var(--transition-smooth);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

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

/* Sidebar Branding */
.sidebar {
    position: sticky;
    top: 100px;
    padding: 2.5rem;
    background: linear-gradient(135deg, var(--primary-dark) 0%, #1e293b 100%);
    color: white;
    border-radius: 24px;
}

/* FAQ Accordion */
details {
    margin-bottom: 1.25rem;
    border-radius: 16px;
    background: white;
    border: 1px solid #E2E8F0;
    transition: var(--transition-smooth);
}

summary {
    padding: 1.5rem;
    cursor: pointer;
    font-weight: 700;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

summary i { transition: transform 0.3s; }
details[open] summary i { transform: rotate(180deg); }

/* Typography Helpers */
.text-gradient {
    background: linear-gradient(45deg, var(--action-color), var(--accent-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Mobile Friendly */
.mobile-cta {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: var(--action-color);
    color: white;
    text-align: center;
    padding: 1.25rem;
    font-weight: 800;
    text-decoration: none;
    z-index: 2000;
    font-size: 1.1rem;
    letter-spacing: 0.5px;
    box-shadow: 0 -5px 20px rgba(37, 99, 235, 0.3);
}

@media (max-width: 768px) {
    .mobile-cta { display: block; }
    body { padding-bottom: 60px; }
}

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

.fade-in {
    animation: fadeInUp 1s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}