:root {
    --primary: #1E7F5C;
    --primary-dark: #145940;
    --secondary: #C9A24D;
    --secondary-dark: #A68535;
    --dark: #121212;
    --light: #F8F9FA;
    --white: #FFFFFF;
    --gray: #6C757D;
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --glass: rgba(255, 255, 255, 0.8);
}

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

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

h1,
h2,
h3 {
    font-family: 'Poppins', sans-serif;
    line-height: 1.2;
    color: var(--primary);
}

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

.section {
    padding: 100px 0;
}

.text-center {
    text-align: center;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1.2rem 2.5rem;
    border-radius: 50px;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(30, 127, 92, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(30, 127, 92, 0.4);
}

.btn-large {
    font-size: 1.2rem;
    padding: 1.5rem 3.5rem;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f0f7f4 0%, #ffffff 100%);
    position: relative;
    padding-top: 100px;
}

.nav-top {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 100;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: 0.3s all ease;
}

.back-link:hover {
    color: var(--primary-dark);
    transform: translateX(-5px);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    color: var(--primary-dark);
}

.hero-content .subtitle {
    font-size: 1.5rem;
    color: var(--gray);
    margin-bottom: 2.5rem;
}

.hero-image img {
    width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transform: rotate(2deg);
}

/* About Section */
.about {
    background-color: var(--light);
}

.about h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

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

.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    border-top: 4px solid var(--primary);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.feature-card i {
    font-size: 2rem;
    color: var(--secondary);
    margin-bottom: 1rem;
    display: block;
}

/* Who Is This For */
.who-is-this-for {
    background: var(--white);
}

.who-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.who-card {
    padding: 2rem;
    background: var(--light);
    border-radius: var(--border-radius);
    text-align: center;
}

.who-card i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

/* Pricing Section */
.pricing {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
}

.pricing h2,
.pricing h3 {
    color: var(--white);
}

.price-card {
    background: var(--white);
    color: var(--dark);
    max-width: 400px;
    margin: 3rem auto;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.price-card .old-price {
    font-size: 1.5rem;
    text-decoration: line-through;
    color: var(--gray);
}

.price-card .new-price {
    font-size: 4rem;
    color: var(--primary);
    font-weight: 800;
    margin: 1rem 0;
}

.price-card .btn {
    width: 100%;
}

/* CTA Section */
.cta {
    background-color: var(--white);
}

.cta-box {
    background: var(--light);
    padding: 4rem;
    border-radius: 30px;
    border: 2px dashed var(--primary);
}

/* Footer */
footer {
    background: var(--dark);
    color: var(--white);
    padding: 3rem 0;
    text-align: center;
}

/* Responsive */
@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 3rem;
    }

    .hero-image {
        order: -1;
        max-width: 400px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }

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

    .price-card {
        padding: 2rem;
    }
}

/* Animations */
[data-reveal],
.animate-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: 1s all ease;
}

[data-reveal].active,
.animate-reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Ensure visibility if script fails */
.no-js [data-reveal],
.no-js .animate-reveal {
    opacity: 1;
    transform: none;
}

/* --- Calorie Guide Pop-up Styles --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(5px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: var(--white);
    max-width: 450px;
    width: 90%;
    border-radius: 20px;
    position: relative;
    padding: 0;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    transform: scale(0.9) translateY(20px);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.active .modal-content {
    transform: scale(1) translateY(0);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(0, 0, 0, 0.2);
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: background 0.3s;
}

.modal-close:hover {
    background: rgba(0, 0, 0, 0.4);
}

.modal-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: 40px 30px;
    text-align: center;
    color: white;
}

.modal-header i {
    font-size: 4rem;
    margin-bottom: 15px;
    display: block;
    color: var(--secondary);
}

.modal-header h3 {
    color: white;
    font-size: 1.8rem;
    margin-bottom: 5px;
}

.modal-header .badge {
    position: static;
    display: inline-block;
    background: var(--secondary);
    color: white;
    padding: 4px 12px;
    border-radius: 5px;
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
    margin-top: 10px;
}

.modal-body {
    padding: 30px;
    text-align: center;
}

.modal-body ul {
    text-align: left;
    margin: 20px 0;
}

.modal-body ul li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-body .price-tag {
    font-size: 2.5rem;
    color: var(--primary);
    font-weight: 800;
    margin: 20px 0;
}

.modal-body .price-tag span {
    text-decoration: line-through;
    color: #999;
    font-size: 1.2rem;
    margin-right: 10px;
}

.modal-body .btn {
    width: 100%;
}