/* Variables & Reset */
:root {
    --primary-color: #e31b23; /* Energetic Red */
    --secondary-color: #1a1a1a; /* Dark Gray */
    --bg-dark: #121212;
    --bg-darker: #0a0a0a;
    --text-light: #f5f5f5;
    --text-gray: #a0a0a0;
    --white: #ffffff;
    --font-heading: 'Oswald', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--white);
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

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

.btn {
    display: inline-block;
    padding: 12px 30px;
    font-family: var(--font-heading);
    font-weight: 700;
    text-transform: uppercase;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    border: 2px solid var(--primary-color);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--primary-color);
}

.btn-outline {
    background-color: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-outline:hover {
    background-color: var(--white);
    color: var(--secondary-color);
}

/* Header */
.header {
    background-color: rgba(18, 18, 18, 0.95);
    padding: 20px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
}

.nav-list {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-list a {
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
}

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

.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    background-image: url('https://images.unsplash.com/photo-1534438327276-14e5300c3a48?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80'); /* Placeholder Gym Image */
    background-size: cover;
    background-position: center;
    position: relative;
    display: flex;
    align-items: center;
    margin-top: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.5));
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 20px;
    line-height: 1.1;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: var(--text-gray);
    max-width: 600px;
}

.hero-btns {
    display: flex;
    gap: 20px;
}

/* Sections General */
.section {
    padding: 100px 0;
}

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

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

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

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

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

.about-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: var(--text-gray);
}

.about-image img {
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

/* Trainer Section */
.trainer {
    background-color: var(--bg-dark);
}

.trainer-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 50px;
    align-items: center;
}

.trainer-image img {
    border-radius: 8px;
    filter: grayscale(20%);
    transition: var(--transition);
}

.trainer-image img:hover {
    filter: grayscale(0%);
}

.trainer-info h2 {
    font-size: 2.5rem;
    margin-bottom: 5px;
}

.trainer-info h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.trainer-bio {
    margin-bottom: 30px;
    color: var(--text-gray);
}

.trainer-skills {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.trainer-skills li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
}

.trainer-skills i {
    color: var(--primary-color);
}

/* Services Section */
.services {
    background-color: var(--bg-darker);
}

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

.service-card {
    background-color: var(--bg-dark);
    padding: 40px 30px;
    border-radius: 8px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.05);
}

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

.service-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.service-card h3 {
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.service-card p {
    color: var(--text-gray);
    font-size: 0.9rem;
}

/* Reviews Section */
.reviews {
    background-color: var(--bg-dark);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.review-card {
    background-color: var(--bg-darker);
    padding: 30px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.review-header h4 {
    font-size: 1.1rem;
}

.stars {
    color: #ffd700;
    font-size: 0.8rem;
}

.review-card p {
    font-style: italic;
    color: var(--text-gray);
    font-size: 0.95rem;
}

/* Contact Section */
.contact {
    background-color: var(--bg-darker);
    padding-bottom: 0;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background-color: var(--bg-dark);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}

.contact-info {
    padding: 60px;
}

.contact-info h2 {
    margin-bottom: 15px;
}

.contact-info > p {
    margin-bottom: 40px;
    color: var(--text-gray);
}

.info-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 5px;
}

.info-item h4 {
    font-size: 0.9rem;
    margin-bottom: 5px;
    color: var(--text-gray);
}

.info-item p {
    font-size: 1.1rem;
    font-weight: 500;
}

.social-links {
    margin-top: 40px;
}

.social-links a {
    font-size: 1.5rem;
    color: var(--white);
    margin-right: 20px;
}

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

.contact-map {
    min-height: 400px;
}

/* Footer */
.footer {
    background-color: #000;
    padding: 30px 0;
    text-align: center;
    color: var(--text-gray);
    font-size: 0.9rem;
    border-top: 1px solid rgba(255,255,255,0.05);
}

/* Responsive */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 3rem;
    }
    
    .about-content, .trainer-grid, .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .about-image, .trainer-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    .nav-list {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--bg-dark);
        flex-direction: column;
        padding: 20px;
        text-align: center;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }

    .nav-list.active {
        display: flex;
    }

    .mobile-nav-toggle {
        display: block;
    }

    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-btns {
        flex-direction: column;
    }

    .contact-info {
        padding: 40px;
    }
}