:root {
    /* Colors - Light Theme */
    --bg-body: #ffffff;
    --bg-surface: #f8f9fa;
    --bg-glass: rgba(255, 255, 255, 0.7);
    --bg-glass-card: rgba(255, 255, 255, 0.85);

    --primary-color: #2563eb;
    /* Royal Blue */
    --primary-gradient: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
    --secondary-color: #06b6d4;
    /* Cyan */
    --accent-color: #7c3aed;
    /* Purple */

    --text-main: #1e293b;
    --text-muted: #64748b;
    --text-light: #ffffff;

    --border-glass: rgba(0, 0, 0, 0.05);

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --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-glass: 0 8px 32px 0 rgba(31, 38, 135, 0.1);

    /* Typography */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --container-width: 1200px;
    --header-height: 80px;
}

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

html {
    scroll-behavior: smooth;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--text-main);
    font-weight: 700;
    line-height: 1.2;
}

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

ul {
    list-style: none;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Utilities */
.text-gradient {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: var(--font-body);
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--bg-surface);
}

/* Header */
.header {
    height: var(--header-height);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-glass);
    display: flex;
    align-items: center;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo svg {
    height: 40px;
    width: auto;
}

.nav-list {
    display: flex;
    gap: 32px;
}

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

.nav-list a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background: var(--primary-gradient);
    transition: width 0.3s ease;
}

.nav-list a:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    padding-top: var(--header-height);
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg-3d {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: radial-gradient(circle at 70% 30%, rgba(37, 99, 235, 0.05), transparent 60%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text h1 {
    font-size: 3.5rem;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-text p {
    font-size: 1.25rem;
    /* Increased size (18px -> 20px) */
    color: var(--text-muted);
    margin-bottom: 32px;
    max-width: 540px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
}

.hero-trust {
    display: flex;
    gap: 24px;
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

.hero-trust span {
    display: flex;
    align-items: center;
    gap: 8px;
}

.hero-trust i {
    color: var(--primary-color);
}

.hero-visual {
    position: relative;
    height: 100%;
    min-height: 500px;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--bg-surface);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--bg-glass-card);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    padding: 32px;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    font-size: 24px;
    color: var(--primary-color);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Testimonials */
.testimonials {
    padding: 100px 0;
    position: relative;
}

.testimonial-card {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: 40px;
    background: white;
    border-radius: 24px;
    box-shadow: var(--shadow-glass);
}

.quote-icon {
    font-size: 40px;
    color: rgba(37, 99, 235, 0.2);
    margin-bottom: 24px;
}

.testimonial-text {
    font-size: 1.25rem;
    /* Increased size */
    font-style: italic;
    color: var(--text-main);
    margin-bottom: 32px;
}

.client-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.client-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-color);
}

.client-details h4 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.client-details span {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* FAQ */
.faq {
    padding: 100px 0;
    background: var(--bg-surface);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: 12px;
    margin-bottom: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.3s ease;
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

.faq-question {
    padding: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    font-size: 1.1rem;
}

.faq-answer {
    padding: 0 24px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    color: var(--text-muted);
}

.faq-toggle {
    transition: transform 0.3s ease;
}

.faq-item.active .faq-answer {
    padding-bottom: 24px;
    max-height: 200px;
    /* Adjust as needed */
}

.faq-item.active .faq-toggle {
    transform: rotate(180deg);
}

/* CTA */
.cta {
    padding: 80px 0;
    background: var(--primary-gradient);
    color: white;
    text-align: center;
}

.cta h2 {
    color: white;
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.cta p {
    font-size: 1.25rem;
    margin-bottom: 32px;
    opacity: 0.9;
}

.btn-white {
    background: white;
    color: var(--primary-color);
    font-weight: 700;
}

.btn-white:hover {
    background: #f0f9ff;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* Footer */
.footer {
    background: #F1F5F9;
    padding: 80px 0 20px;
    color: var(--text-main);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 60px;
}

.footer-column h4 {
    margin-bottom: 24px;
    font-size: 1.1rem;
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column a {
    color: var(--text-muted);
}

.footer-column a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: 16px;
    margin-top: 24px;
}

.social-links a {
    font-size: 20px;
    color: var(--text-main);
}

.footer-bottom {
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Mobile */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .hero-text p {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-trust {
        justify-content: center;
        flex-wrap: wrap;
    }

    .nav-list {
        display: none;
        /* simple toggle later */
    }

    .footer-content {
        flex-direction: column;
        gap: 40px;
    }
}