:root {
    /* Colors from xenfaapp.com */
    --primary: #08836a;
    --primary-dark: #066b56;
    --primary-light: rgba(8, 131, 106, 0.1);
    
    --bg-main: #F9FAFC;
    --bg-white: #ffffff;
    
    --text-main: #1A1D1F;
    --text-muted: #5F6D7E;
    
    --border: rgba(0, 0, 0, 0.05);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
    
    /* Typography */
    --font-header: 'Lexend Deca', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Transitions */
    --transition: cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

/* Base Styles */
h1, h2, h3 {
    font-family: var(--font-header);
    font-weight: 900;
    letter-spacing: -0.02em;
    color: var(--text-main);
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s var(--transition);
}

/* Aurora Backdrop */
.aurora-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: 
        radial-gradient(circle at 80% 20%, rgba(8, 131, 106, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 20% 80%, rgba(167, 139, 250, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 10% 10%, rgba(251, 191, 193, 0.05) 0%, transparent 40%);
    filter: blur(60px);
}

/* Navbar */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 8%;
    position: absolute;
    width: 100%;
    z-index: 100;
}

nav .logo img {
    height: 32px;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 8%;
}

/* Buttons */
.btn-primary {
    background: #000000;
    color: white;
    padding: 1rem 2.5rem;
    border-radius: 12px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    position: relative;
    overflow: hidden;
}

.btn-primary.loading {
    color: transparent !important;
    pointer-events: none;
}

.spinner {
    display: none;
    position: absolute;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 0.8s linear infinite;
}

.btn-primary.loading .spinner {
    display: block;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.btn-primary:hover {
    background: #222222;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 1rem 2.5rem;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s var(--transition);
}

.btn-outline:hover {
    background: rgba(0, 0, 0, 0.02);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
    gap: 4rem;
    padding-top: 100px;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    margin-bottom: 2rem;
    line-height: 1.1;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 500px;
    margin-bottom: 3rem;
}

.hero-image {
    position: relative;
    border-radius: 40px;
    overflow: hidden;
}

.hero-image img {
    width: 100%;
    display: block;
}

/* Forms */
.waitlist-form {
    display: flex;
    gap: 12px;
    width: 100%;
    max-width: 550px;
    background: white;
    padding: 8px;
    border-radius: 16px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.05);
}

.form-input {
    flex: 1;
    background: transparent;
    border: none;
    padding: 1rem 1.5rem;
    color: var(--text-main);
    font-size: 1rem;
    outline: none;
}

/* Info Section */
.info-section {
    padding: 120px 0;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-top: 5rem;
}

.info-card {
    background: white;
    padding: 3.5rem;
    border-radius: 24px;
    box-shadow: var(--shadow);
    transition: 0.4s var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.02);
}

.info-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.08);
}

.icon-box {
    width: 60px;
    height: 60px;
    background: var(--primary-light);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    color: var(--primary);
    font-size: 1.5rem;
}

/* Evolution Section */
.evolution-section {
    background: white;
    padding: 100px 0;
    margin: 80px 0;
}

.evolution-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
}

/* Contact Section */
.contact-section {
    padding: 120px 0;
}

.contact-card {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 4rem;
    border-radius: 32px;
    box-shadow: var(--shadow);
}

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

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

.input-field {
    width: 100%;
    background: #F4F7F9;
    border: 1px solid transparent;
    padding: 1.2rem;
    border-radius: 12px;
    font-size: 1rem;
    transition: 0.3s;
}

.input-field:focus {
    background: white;
    border-color: var(--primary);
    outline: none;
}

/* Footer */
footer {
    padding: 6rem 0;
    background: white;
    border-top: 1px solid var(--border);
    text-align: center;
}

/* Responsive */
@media (max-width: 968px) {
    .hero { grid-template-columns: 1fr; text-align: center; }
    .hero p { margin-left: auto; margin-right: auto; }
    .waitlist-form { margin: 0 auto; }
    .evolution-grid { grid-template-columns: 1fr; }
    nav { padding: 1.5rem 5%; }
}

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

.animate {
    opacity: 0;
    transition: 0.8s var(--transition);
}

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

.fadeInUp {
    animation: fadeInUp 1s var(--transition) forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: 0.3s;
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    padding: 3rem;
    border-radius: 24px;
    max-width: 450px;
    width: 90%;
    text-align: center;
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.1);
    transform: scale(0.9);
    transition: 0.4s var(--transition);
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.modal-title {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    font-family: var(--font-header);
}

.modal-text {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.btn-modal {
    background: var(--primary);
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 12px;
    border: none;
    font-weight: 600;
    cursor: pointer;
}