:root {
            --dark-olive: #41431B;
            --highlight: #AEB784;
            --bg-light: #F3F4F4;
            --white: #FFFFFF;
            --text-gray: #555555;
            --transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { 
            font-family: 'Fira Sans', sans-serif; 
            background: var(--bg-light); 
            color: var(--dark-olive); 
            line-height: 1.8;
            overflow-x: hidden;
        }

        h1, h2, h3, h4 { font-weight: 900; text-transform: uppercase; letter-spacing: -0.03em; line-height: 1; }

        /* --- NAVIGATION --- */
        header {
            padding: 15px 5%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(65, 67, 27, 0.1);
        }

        .logo { font-size: 1.6rem; font-weight: 900; color: var(--dark-olive); cursor: pointer; display: flex; align-items: center; gap: 10px; }
        .logo i { color: var(--highlight); }
        
        nav { display: flex; gap: 25px; }
        nav a {
            text-decoration: none;
            color: var(--dark-olive);
            font-weight: 700;
            font-size: 0.85rem;
            text-transform: uppercase;
            transition: var(--transition);
            cursor: pointer;
            position: relative;
        }
        nav a::after {
            content: ''; position: absolute; bottom: -5px; left: 0; width: 0; height: 2px; background: var(--highlight); transition: 0.3s;
        }
        nav a:hover::after { width: 100%; }

        .auth-zone { display: flex; gap: 15px; align-items: center; }
        .btn-text { font-weight: 700; cursor: pointer; border: none; background: none; color: var(--dark-olive); text-transform: uppercase; font-size: 0.8rem; }
        .btn-fill { 
            background: var(--dark-olive); 
            color: var(--white); 
            padding: 12px 28px; 
            border-radius: 2px; 
            font-weight: 700; 
            cursor: pointer; 
            border: none;
            transition: 0.3s;
            text-transform: uppercase;
            font-size: 0.8rem;
            letter-spacing: 1px;
        }
        .btn-fill:hover { background: var(--highlight); color: var(--dark-olive); transform: translateY(-2px); }

        /* --- PAGE SYSTEM --- */
        .page { display: none; min-height: 100vh; padding-bottom: 100px; }
        .active-page { display: block; animation: slideUp 0.8s ease-out; }
        @keyframes slideUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }

        /* --- HERO SECTION --- */
        .hero {
            height: 90vh;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            padding: 0 8%;
            background: var(--bg-light);
            align-items: center;
            position: relative;
            overflow: hidden;
        }
        .hero-bg-overlay {
            position: absolute; right: 0; top: 0; width: 45%; height: 100%;
            background: url('https://i.pinimg.com/736x/be/c3/01/bec3017328c8b5143fdc4668ccd0022c.jpg') center/cover;
            clip-path: polygon(15% 0, 100% 0, 100% 100%, 0% 100%);
            z-index: 1;
            filter: grayscale(0.5);
            animation: kenBurns 20s infinite alternate;
        }
        @keyframes kenBurns { from { transform: scale(1); } to { transform: scale(1.15); } }

        .hero-content { position: relative; z-index: 2; padding-right: 50px; opacity: 0; transform: translateX(-50px); transition: 1s ease-out; }
        .hero-content.reveal { opacity: 1; transform: translateX(0); }
        .hero h1 { font-size: clamp(3.5rem, 10vw, 6.5rem); margin-bottom: 25px; color: var(--dark-olive); }
        .hero p { font-size: 1.25rem; margin-bottom: 40px; color: var(--text-gray); max-width: 550px; }

        /* --- FILTERS --- */
        .filter-bar {
            padding: 40px 8%;
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
            justify-content: center;
            background: var(--white);
            border-bottom: 1px solid #eee;
        }
        .filter-btn {
            padding: 10px 25px;
            border: 1px solid var(--dark-olive);
            background: transparent;
            cursor: pointer;
            font-weight: 700;
            text-transform: uppercase;
            font-size: 0.75rem;
            transition: 0.3s;
        }
        .filter-btn.active { background: var(--dark-olive); color: var(--white); }

        /* --- GRIDS & CARDS --- */
        .content-grid {
            padding: 60px 8%;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 40px;
        }
        .standard-card {
            background: var(--white);
            border: 1px solid rgba(0,0,0,0.05);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .standard-card:hover { transform: translateY(-10px); box-shadow: 0 30px 60px rgba(0,0,0,0.1); }
        .card-img { width: 100%; height: 240px; object-fit: cover; }
        .card-body { padding: 35px; flex-grow: 1; }
        .card-tag { color: var(--highlight); font-weight: 900; font-size: 0.7rem; text-transform: uppercase; margin-bottom: 10px; display: block; }
        .card-body h3 { margin-bottom: 15px; font-size: 1.5rem; }
        .card-body p { font-size: 0.95rem; color: var(--text-gray); margin-bottom: 25px; }

        /* --- TRAINERS SPECIFIC --- */
        .trainer-card { text-align: center; background: transparent; border: none; }
        .trainer-card .card-img { border-radius: 50%; width: 200px; height: 200px; margin: 0 auto 30px; border: 5px solid var(--highlight); }

        /* --- SUCCESS STORIES (ALTERNATING) --- */
        .story-section { padding: 100px 8%; }
        .story-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 80px;
            align-items: center;
            margin-bottom: 120px;
        }
        .story-row:nth-child(even) { direction: rtl; }
        .story-row:nth-child(even) .story-text { direction: ltr; }
        .story-img { width: 100%; height: 500px; object-fit: cover; border-radius: 4px; box-shadow: 30px 30px 0 var(--highlight); }
        .story-row:nth-child(even) .story-img { box-shadow: -30px 30px 0 var(--highlight); }
        .story-text h2 { font-size: 3.5rem; margin-bottom: 30px; }

        /* --- MODAL --- */
        .modal {
            position: fixed; inset: 0; background: rgba(0,0,0,0.85);
            z-index: 2000; display: none; align-items: center; justify-content: center; padding: 20px;
            backdrop-filter: blur(5px);
        }
        .modal-content {
            background: var(--white); width: 100%; max-width: 1000px; max-height: 90vh;
            overflow-y: auto; padding: 0; position: relative; border-radius: 4px;
        }
        .modal-header-img { width: 100%; height: 350px; object-fit: cover; }
        .modal-inner { padding: 60px 80px; }
        .close-modal { position: absolute; top: 20px; right: 20px; background: var(--white); width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; border: 1px solid #ddd; z-index: 10; }

        /* --- FOOTER --- */
        footer { background: var(--dark-olive); color: var(--white); padding: 100px 8% 40px; }
        .footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 50px; margin-bottom: 80px; }
        .footer-col h4 { color: var(--highlight); margin-bottom: 25px; font-size: 0.9rem; letter-spacing: 2px; }
        .footer-col ul { list-style: none; }
        .footer-col li { margin-bottom: 12px; opacity: 0.6; cursor: pointer; transition: 0.3s; font-size: 0.9rem; }
        .footer-col li:hover { opacity: 1; color: var(--highlight); padding-left: 5px; }

        /* --- AUTH --- */
        .auth-container { max-width: 1000px; margin: 80px auto; background: var(--white); display: grid; grid-template-columns: 1fr 1fr; min-height: 600px; box-shadow: 0 50px 100px rgba(0,0,0,0.1); }
        .auth-visual { background: url('https://images.unsplash.com/photo-1571019613454-1cb2f99b2d8b?q=80&w=1000') center/cover; }
        .auth-form-box { padding: 60px; display: flex; flex-direction: column; justify-content: center; }
        .form-input { width: 100%; padding: 15px; border: 1px solid #ddd; margin-bottom: 20px; border-radius: 2px; font-family: inherit; }

        /* --- RESPONSIVE --- */
        @media (max-width: 1000px) {
            .hero { grid-template-columns: 1fr; height: auto; padding-top: 100px; padding-bottom: 100px; }
            .hero-bg-overlay { display: none; }
            .hero-content { padding-right: 0; text-align: center; }
            .hero p { margin: 0 auto 40px; }
            .story-row { grid-template-columns: 1fr; gap: 40px; }
            .story-img { height: 350px; }
            .auth-container { grid-template-columns: 1fr; }
            .auth-visual { display: none; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        .main-header{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:20px 8%;
    background:var(--white);
    position:sticky;
    top:0;
    z-index:100;
}

.logo{
    display:flex;
    align-items:center;
    gap:10px;
    font-weight:700;
    cursor:pointer;
}

nav{
    display:flex;
    gap:30px;
}

nav a{
    cursor:pointer;
    font-weight:500;
}

.auth-zone{
    display:flex;
    gap:10px;
}

.menu-toggle{
    display:none;
    cursor:pointer;
}

/* MOBILE */
@media (max-width:900px){

    nav{
        position:absolute;
        top:80px;
        left:0;
        width:100%;
        background:white;
        flex-direction:column;
        align-items:center;
        gap:20px;
        padding:30px 0;
        display:none;
    }

    nav.active{
        display:flex;
    }

    .auth-zone{
        display:none;
    }

    .menu-toggle{
        display:block;
    }
}