:root {
    /* Color Palette - Premium Health Tech */
    --bg-dark: #0f172a;
    --bg-card: rgba(30, 41, 59, 0.7);
    --primary: #3b82f6;
    /* Vivid Blue */
    --accent: #10b981;
    /* Calming Green */
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --border-glass: rgba(255, 255, 255, 0.1);
    --glow: rgba(59, 130, 246, 0.5);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    background-image:
        radial-gradient(circle at 15% 50%, rgba(59, 130, 246, 0.08) 0%, transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(16, 185, 129, 0.08) 0%, transparent 25%);
}

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

.text-gradient {
    background: linear-gradient(135deg, #fff 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 50px;
    background: linear-gradient(90deg, var(--primary), #2563eb);
    color: white;
    text-decoration: none;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.5);
}

/* Navbar */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
}

.logo img {
    height: 40px;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    margin-left: 2rem;
    transition: color 0.3s;
}

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

/* Hero Section */
.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    min-height: 80vh;
    padding: 4rem 0;
}

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 500px;
}

/* Glass Card Form */
.hero-form {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass);
    padding: 2.5rem;
    border-radius: 24px;
    box-shadow: 0 20px 50px -10px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
}

.hero-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

.hero-form h3 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.form-group {
    margin-bottom: 1.2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 1rem;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    color: white;
    font-size: 1rem;
    transition: border 0.3s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
}

.status-msg {
    margin-top: 10px;
    text-align: center;
    font-size: 0.9rem;
    display: none;
}

.status-msg.success {
    display: block;
    color: var(--accent);
}

.status-msg.error {
    display: block;
    color: #ef4444;
}

/* Features */
.features {
    padding: 5rem 0;
}

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

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-glass);
    padding: 2rem;
    border-radius: 16px;
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.05);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary);
}

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

    .hero-content p {
        margin: 0 auto 2.5rem;
    }

    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: transparent;
    border: 1px solid var(--border-glass);
    color: var(--text-main);
    font-size: 1.5rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.mobile-menu-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary);
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-content {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.mobile-menu-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background: transparent;
    border: 1px solid var(--border-glass);
    color: var(--text-main);
    font-size: 2rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.mobile-menu-close:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary);
    transform: rotate(90deg);
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    text-align: center;
}

.mobile-nav-link {
    color: var(--text-main);
    text-decoration: none;
    font-size: 2rem;
    font-weight: 600;
    transition: all 0.3s ease;
    padding: 1rem;
}

.mobile-nav-link:hover {
    color: var(--primary);
    transform: translateX(10px);
}

/* Guides Section */
.guides-section {
    padding: 5rem 0;
}

.guides-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.guide-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-glass);
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s ease;
}

.guide-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary);
}

.guide-icon {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.guide-card h3 {
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.guide-card p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.guide-download-btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background: linear-gradient(90deg, var(--primary), #2563eb);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.guide-download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.4);
}

/* About Section */
.about-section {
    padding: 5rem 0;
    background: rgba(255, 255, 255, 0.02);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text h3 {
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
}

.about-text p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
    text-align: center;
}

.stat-item {
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Footer */
.footer {
    background: rgba(0, 0, 0, 0.5);
    padding: 3rem 0 1.5rem;
    margin-top: 5rem;
    border-top: 1px solid var(--border-glass);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    align-items: center;
    text-align: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
    font-weight: 700;
}

.footer-links {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-copy {
    padding-top: 1rem;
    border-top: 1px solid var(--border-glass);
    width: 100%;
}

.footer-copy p {
    color: var(--text-muted);
    font-size: 0.9rem;
}