:root {
    --primary: #00bcd4;
    --primary-dark: #0097a7;
    --secondary: #263238;
    --accent: #4dd0e1;
    --bg-dark: #0a192f;
    --text-light: #e6f1ff;
    --text-muted: #8892b0;
    --white: #ffffff;
    --glass: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --transition: all 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

h1, h2, h3 {
    font-family: 'Montserrat', sans-serif;
    color: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 25, 47, 0.85);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 20px 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    transition: var(--transition);
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 188, 212, 0.2);
}

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

.btn-secondary:hover {
    background: rgba(0, 188, 212, 0.1);
}

.btn-nav {
    padding: 8px 20px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    padding-top: 120px;
    background: url('assets/hero_bg.png') no-repeat center center/cover;
    display: flex;
    align-items: center;
    position: relative;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, var(--bg-dark) 50%, rgba(10, 25, 47, 0.4));
    z-index: 1;
}

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

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.badge {
    color: var(--primary);
    background: rgba(0, 188, 212, 0.1);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 20px;
    display: inline-block;
}

.hero h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 25px;
}

.highlight {
    color: var(--primary);
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-btns .btn {
    margin-right: 20px;
}

.hero-image img {
    max-width: 100%;
    height: auto;
}

.floating {
    animation: floating 3s ease-in-out infinite;
}

@keyframes floating {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

/* Cycle Section */
.cycle {
    padding: 100px 0;
}

.cycle-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.cycle-item {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    padding: 40px;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
}

.cycle-item:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
}

.cycle-icon {
    font-size: 2.5rem;
    font-weight: 800;
    color: rgba(0, 188, 212, 0.2);
    margin-bottom: 20px;
}

.cycle-item h3 {
    margin-bottom: 15px;
}

.cycle-item p {
    color: var(--text-muted);
}

/* Benefits Section */
.benefits {
    padding: 100px 0;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.benefit-card {
    background: var(--glass);
    padding: 30px;
    border-radius: 10px;
    transition: var(--transition);
}

.benefit-card:hover {
    background: rgba(0, 188, 212, 0.05);
}

.benefit-card .icon {
    font-size: 2rem;
    margin-bottom: 20px;
    display: block;
}

.benefit-card h3 {
    margin-bottom: 10px;
}

/* Ingredients Section */
.ingredients {
    padding: 100px 0;
    background: rgba(0, 188, 212, 0.02);
}

.ingredients-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.ingredient-item {
    border-left: 3px solid var(--primary);
    padding-left: 20px;
}

.ingredient-item h3 {
    margin-bottom: 5px;
    font-size: 1.3rem;
}

/* Usage Section */
.usage {
    padding: 100px 0;
}

.usage-flex {
    display: flex;
    align-items: center;
    gap: 50px;
}

.usage-content h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
}

.usage-content ul {
    list-style: none;
}

.usage-content li {
    margin-bottom: 20px;
    position: relative;
    padding-left: 30px;
    font-size: 1.1rem;
}

.usage-content li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

.usage-image img {
    max-width: 400px;
}

/* Reviews Teaser */
.reviews-teaser {
    padding: 80px 0;
    text-align: center;
    background: rgba(0, 188, 212, 0.03);
}

.reviews-teaser .stars {
    color: #ffb400;
    margin-bottom: 20px;
}

.teaser-content p {
    font-size: 1.3rem;
    font-style: italic;
    margin-bottom: 30px;
    color: var(--text-light);
}

/* Pricing Section */
.pricing {
    padding: 100px 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.price-card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    padding: 50px 30px;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition);
}

.price-card.popular {
    border-color: var(--primary);
    background: rgba(0, 188, 212, 0.05);
    transform: scale(1.05);
}

.price-card h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.duration {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    margin: 20px 0;
}

.price-card p {
    margin-bottom: 30px;
    color: var(--text-muted);
}

/* Footer */
footer {
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid var(--glass-border);
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-content p {
        margin: 0 auto 40px;
    }
    .hero h1 {
        font-size: 3rem;
    }
    .hero::after {
        background: rgba(10, 25, 47, 0.8);
    }
    .cycle-grid, .pricing-grid {
        grid-template-columns: 1fr;
    }
    .usage-flex {
        flex-direction: column;
    }
}