:root {
    --primary: #7C3AED;
    --primary-dark: #5B21B6;
    --primary-light: #A78BFA;
    --secondary: #4C1D95;
    --accent: #F472B6;
    --text-main: #1F2937;
    --text-muted: #6B7280;
    --bg-light: #F9FAFB;
    --white: #FFFFFF;
    --glass: rgba(255, 255, 255, 0.8);
    --shadow: 0 10px 30px rgba(124, 58, 237, 0.1);
    --gradient: linear-gradient(135deg, #7C3AED 0%, #4C1D95 100%);
}

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

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

h1, h2, h3, h4, .btn, .nav-links {
    font-family: 'Outfit', sans-serif;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s ease;
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: 0.4s ease;
}

header.scrolled {
    background: var(--glass);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 90px;
    width: auto;
    transition: 0.3s ease;
    filter: brightness(0) invert(1); /* Visible on dark hero */
}

header.scrolled .logo img {
    height: 60px; /* Reducing slightly when scrolled for better space */
    filter: none; /* Original colors on light sticky header */
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    font-weight: 500;
    color: var(--white); /* White for hero visibility */
}

header.scrolled .nav-links a {
    color: var(--text-main); /* Dark for scrolled header */
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-cta .btn {
    padding: 0.75rem 1.75rem;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    background: url('hero-img.png') no-repeat center center/cover;
    color: var(--white);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(12, 10, 20, 0.7), rgba(124, 58, 237, 0.4));
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-text-wrapper {
    max-width: 700px;
}

.badge {
    background: rgba(124, 58, 237, 0.2);
    border: 1px solid var(--primary-light);
    color: var(--primary-light);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 2rem;
    display: inline-block;
    backdrop-filter: blur(5px);
}

.hero h1 {
    font-size: 4.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    max-width: 600px;
}

.hero-btns {
    display: flex;
    gap: 1.5rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-gradient {
    background: var(--gradient);
    color: var(--white);
    box-shadow: 0 10px 20px rgba(124, 58, 237, 0.3);
}

.btn-gradient:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 25px rgba(124, 58, 237, 0.4);
}

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

.btn-outline:hover {
    background: var(--white);
    color: var(--primary);
}

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

/* Sections General */
section {
    padding: 8rem 0;
}

.section-tag {
    color: var(--primary);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.875rem;
    display: block;
    margin-bottom: 1rem;
}

h2 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

/* About Section */
.about-image {
    position: relative;
}

.glass-card {
    background: var(--glass);
    padding: 1.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255,255,255,0.5);
}

.rounded-img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
}

.check-list {
    margin-top: 2rem;
}

.check-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-weight: 500;
}

.check-list i {
    color: var(--primary);
    font-size: 1.25rem;
}

/* Features Section */
.features-section {
    background: var(--bg-light);
}

.center {
    text-align: center;
    margin-bottom: 4rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.feature-card {
    background: var(--white);
    padding: 3.5rem 2.5rem;
    border-radius: 24px;
    transition: 0.4s ease;
    border: 1px solid #edf2f7;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
    border-color: var(--primary-light);
}

.icon-box {
    width: 70px;
    height: 70px;
    background: rgba(124, 58, 237, 0.1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    border-radius: 18px;
    margin-bottom: 2rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-muted);
}

/* CTA Banner */
.cta-banner {
    padding: 4rem 0 8rem;
}

.cta-card {
    background: var(--gradient);
    padding: 5rem;
    border-radius: 32px;
    color: var(--white);
    text-align: center;
    box-shadow: 0 30px 60px rgba(76, 29, 149, 0.3);
}

.cta-card h2 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.cta-card p {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    opacity: 0.9;
}

/* Footer */
footer {
    background: #0f172a;
    color: #94a3b8;
    padding-top: 8rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 4rem;
    margin-bottom: 5rem;
}

.footer-logo {
    height: 90px;
    margin-bottom: 2rem;
    filter: brightness(0) invert(1);
}

.footer-col h4 {
    color: var(--white);
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

.footer-col ul li {
    margin-bottom: 1rem;
}

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

.footer-col p {
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.social-links a {
    width: 45px;
    height: 45px;
    background: rgba(255,255,255,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--white);
}

.social-links a:hover {
    background: var(--primary);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: 2.5rem 0;
    text-align: center;
    font-size: 0.875rem;
}

/* Mobile Toggle */
.mobile-menu-toggle {
    display: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--white); /* White for hero */
    margin: 5px 0;
    transition: 0.3s ease;
}

header.scrolled .mobile-menu-toggle span {
    background: var(--text-main); /* Dark for scrolled */
}

/* Responsive */
@media (max-width: 1024px) {
    .hero h1 { font-size: 3.5rem; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .grid-2 { grid-template-columns: 1fr; gap: 3rem; }
    .features-grid { grid-template-columns: 1fr; }
    .nav-links { 
        display: none; 
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    }
    .nav-links.active { display: flex; }
    .mobile-menu-toggle { display: block; }
    .hero { height: auto; padding: 10rem 0 6rem; }
    .hero h1 { font-size: 2.8rem; margin-top: 1rem; }
    .cta-card { padding: 3rem 1.5rem; }
    .cta-card h2 { font-size: 2rem; }
}