/* 
 * Energym - Main Stylesheet
 * Theme: Black & Gold (#EED529)
 */

/* ===== CSS Variables ===== */
:root {
    --primary: #EED529;
    --primary-dark: #D4BE24;
    --primary-light: #F5E55C;
    --bg-dark: #0a0a0a;
    --bg-darker: #050505;
    --bg-card: #111111;
    --bg-card-hover: #1a1a1a;
    --text-white: #ffffff;
    --text-light: #e5e5e5;
    --text-muted: #888888;
    --text-dark: #333333;
    --border-color: #222222;
    --success: #22c55e;
    --error: #ef4444;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --transition: all 0.3s ease;
    --font-main: 'Bebas Neue', 'Arial Black', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

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

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

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

ul, ol {
    list-style: none;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-main);
    font-weight: 400;
    letter-spacing: 2px;
    text-transform: uppercase;
    line-height: 1.2;
}

h1 { font-size: clamp(3rem, 8vw, 6rem); }
h2 { font-size: clamp(2rem, 5vw, 3.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.25rem; }

.text-primary { color: var(--primary); }
.text-muted { color: var(--text-muted); }

/* ===== Utilities ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 100px 0;
}

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

.section-header h2 {
    color: var(--text-white);
    margin-bottom: 10px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.125rem;
}

.gold-line {
    width: 80px;
    height: 4px;
    background: var(--primary);
    margin: 20px auto;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    border-radius: 0;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(238, 213, 41, 0.4);
}

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

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

.btn-dark {
    background: var(--bg-card);
    color: var(--text-white);
    border: 1px solid var(--border-color);
}

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

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    padding: 10px 0;
    background: rgba(5, 5, 5, 0.98);
}

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

.logo {
    font-family: var(--font-main);
    font-size: 2rem;
    color: var(--primary);
    letter-spacing: 4px;
}

.nav-links {
    display: flex;
    gap: 35px;
    align-items: center;
}

.nav-links a {
    color: var(--text-light);
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

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

.lang-switch {
    background: var(--primary);
    color: var(--bg-dark);
    padding: 8px 16px;
    font-weight: 700;
    font-size: 0.75rem;
}

.lang-switch:hover {
    background: var(--primary-light);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-white);
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.7) 0%,
        rgba(0, 0, 0, 0.5) 50%,
        rgba(10, 10, 10, 1) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 0 20px;
}

.hero h1 {
    color: var(--text-white);
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero .tagline {
    color: var(--primary);
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

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

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

.about-content h3 {
    color: var(--primary);
    margin-bottom: 15px;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.feature-card {
    text-align: center;
    padding: 30px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.feature-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
}

.feature-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    background: var(--primary);
    color: var(--bg-dark);
    font-size: 1.5rem;
}

.feature-card h4 {
    color: var(--text-white);
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 40px 30px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: var(--primary);
    transition: var(--transition);
}

.service-card:hover::before {
    height: 100%;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.service-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(238, 213, 41, 0.1);
    color: var(--primary);
    font-size: 1.25rem;
    margin-bottom: 20px;
}

.service-card h3 {
    color: var(--text-white);
    font-size: 1.25rem;
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-muted);
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.service-price {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
}

/* ===== Schedule Section ===== */
.schedule {
    background: var(--bg-darker);
}

.schedule-container {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 40px;
}

.booking-form {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 30px;
}

.booking-form h3 {
    color: var(--text-white);
    margin-bottom: 25px;
    font-size: 1.5rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-light);
    font-size: 0.875rem;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-darker);
    border: 1px solid var(--border-color);
    color: var(--text-white);
    font-family: var(--font-body);
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23888' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
}

.schedule-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.class-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 25px;
    transition: var(--transition);
}

.class-card:hover {
    border-color: var(--primary);
}

.class-time {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.class-day {
    background: var(--primary);
    color: var(--bg-dark);
    padding: 5px 12px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.class-hour {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.class-card h4 {
    color: var(--text-white);
    margin-bottom: 10px;
}

.class-instructor {
    color: var(--primary);
    font-size: 0.875rem;
    margin-bottom: 10px;
}

.class-spots {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* ===== Gallery Section ===== */
.gallery {
    background: var(--bg-dark);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
}

.gallery-item {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(238, 213, 41, 0);
    transition: var(--transition);
}

.gallery-item:hover::after {
    background: rgba(238, 213, 41, 0.2);
}

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

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

.review-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 35px;
    transition: var(--transition);
}

.review-card:hover {
    border-color: var(--primary);
}

.review-stars {
    color: var(--primary);
    margin-bottom: 20px;
    font-size: 1rem;
}

.review-content {
    color: var(--text-light);
    font-style: italic;
    margin-bottom: 25px;
    line-height: 1.8;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.review-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-dark);
    font-weight: 700;
    font-size: 1.25rem;
}

.review-info h5 {
    color: var(--text-white);
    font-family: var(--font-body);
    font-weight: 600;
    text-transform: none;
    letter-spacing: 0;
}

.review-info span {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* ===== Contact Section ===== */
.contact {
    background: var(--bg-dark);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 40px;
}

.contact-info h3 {
    color: var(--text-white);
    margin-bottom: 30px;
}

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

.contact-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(238, 213, 41, 0.1);
    color: var(--primary);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-text h4 {
    color: var(--text-white);
    margin-bottom: 5px;
    font-size: 1rem;
}

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

.contact-text a {
    color: var(--primary);
}

.contact-text a:hover {
    text-decoration: underline;
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--border-color);
    padding: 40px 0;
    text-align: center;
}

.footer-logo {
    font-family: var(--font-main);
    font-size: 2.5rem;
    color: var(--primary);
    letter-spacing: 4px;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
}

.footer-social a {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-light);
    font-size: 1.125rem;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
    color: var(--bg-dark);
    border-color: var(--primary);
}

.footer-copyright {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ===== Modal ===== */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 2000;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.9);
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 40px;
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--primary);
}

.modal h3 {
    color: var(--text-white);
    margin-bottom: 25px;
}

/* ===== Alerts ===== */
.alert {
    padding: 15px 20px;
    margin-bottom: 20px;
    border: 1px solid;
    font-size: 0.9rem;
}

.alert-success {
    background: rgba(34, 197, 94, 0.1);
    border-color: var(--success);
    color: var(--success);
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--error);
    color: var(--error);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .schedule-container {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--bg-darker);
        padding: 20px;
        gap: 15px;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .section {
        padding: 60px 0;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
}

@media (max-width: 480px) {
    .gallery-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    
    .reviews-slider {
        grid-template-columns: 1fr;
    }
    
    h1 {
        font-size: 2.5rem;
    }
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeInUp 0.6s ease forwards;
}

/* ===== Loading Spinner ===== */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--bg-dark);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-darker);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}


/* =====================
   TRAINERS SECTION
   ===================== */
.trainers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.trainer-card {
    background: #1a1a1a;
    border-radius: 4px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.trainer-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
}

.trainer-photo {
    position: relative;
    width: 100%;
    aspect-ratio: 3 / 4;
    overflow: hidden;
    background: #111;
}

.trainer-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.trainer-card:hover .trainer-photo img {
    transform: scale(1.05);
}

.trainer-photo-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #222;
    color: #555;
    font-size: 60px;
}

.trainer-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, transparent 50%);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 14px;
    padding-bottom: 16px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.trainer-card:hover .trainer-overlay {
    opacity: 1;
}

.trainer-overlay a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #eed529;
    color: #111;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: background 0.2s ease, transform 0.2s ease;
    text-decoration: none;
}

.trainer-overlay a:hover {
    background: #fff;
    transform: scale(1.15);
}

.trainer-info {
    padding: 20px;
}

.trainer-info h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
    margin: 0 0 4px;
}

.trainer-specialty {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 600;
    color: #eed529;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 10px;
}

.trainer-bio {
    font-size: 0.88rem;
    color: #aaa;
    line-height: 1.6;
    margin-bottom: 12px;
}

.trainer-exp {
    font-size: 0.82rem;
    color: #888;
    display: flex;
    align-items: center;
    gap: 6px;
}

.trainer-exp i {
    color: #eed529;
}

@media (max-width: 768px) {
    .trainers-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .trainers-grid {
        grid-template-columns: 1fr;
    }
}