:root {
            --soft-coral: #F2B8A0;
            --misty-beige: #FAF4E3;
            --warm-taupe: #A8978E;
            --pale-mint: #D3E4CD;
            --soft-charcoal: #5C5C5C;
            --white: #FFFFFF;
            --transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            background-color: var(--misty-beige);
            font-family: 'Lexend Deca', sans-serif;
            color: var(--soft-charcoal);
            overflow-x: hidden;
            line-height: 1.6;
        }

        /* Typography Classes */
        .lexend-bold { font-weight: 700; }
        .lexend-semibold { font-weight: 600; }
        .lexend-medium { font-weight: 500; }

        /* HEADER */
        header {
            position: fixed;
            top: 0;
            width: 100%;
            height: 100px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 8%;
            z-index: 1000;
            transition: var(--transition);
        }

        header.scrolled {
            background: rgba(250, 244, 227, 0.9);
            backdrop-filter: blur(20px);
            height: 80px;
            box-shadow: 0 10px 30px rgba(168, 151, 142, 0.1);
        }

        .logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--soft-coral);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            cursor: pointer;
        }

        nav { display: flex; gap: 35px; }

        nav a {
            text-decoration: none;
            color: var(--soft-charcoal);
            font-weight: 500;
            font-size: 0.95rem;
            position: relative;
            cursor: pointer;
        }

        nav a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 50%;
            width: 0;
            height: 3px;
            background: var(--soft-coral);
            transition: var(--transition);
            transform: translateX(-50%);
            border-radius: 10px;
        }

        nav a:hover::after { width: 100%; }

        .auth-btn {
            background: var(--soft-coral);
            color: white;
            padding: 12px 28px;
            border-radius: 50px;
            border: none;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 15px rgba(242, 184, 160, 0.3);
        }

        .auth-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(242, 184, 160, 0.5);
        }

        /* HERO SECTION */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            padding: 0 8%;
            background: radial-gradient(circle at 10% 20%, rgba(211, 228, 205, 0.3) 0%, transparent 50%);
        }

        .hero-shapes {
            position: absolute;
            inset: 0;
            z-index: 1;
            overflow: hidden;
        }

        .blob {
            position: absolute;
            background: var(--pale-mint);
            filter: blur(60px);
            border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
            animation: morph 15s linear infinite alternate;
        }

        @keyframes morph {
            0% { border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%; transform: rotate(0deg) scale(1); }
            100% { border-radius: 70% 30% 50% 50% / 30% 60% 40% 70%; transform: rotate(180deg) scale(1.2); }
        }

        .hero-content {
            flex: 1;
            z-index: 2;
            padding-right: 50px;
        }

        .hero-image {
            flex: 1;
            z-index: 2;
            display: flex;
            justify-content: flex-end;
        }

        .hero-card {
            background: rgba(255, 255, 255, 0.7);
            backdrop-filter: blur(30px);
            padding: 50px;
            border-radius: 40px;
            border: 1px solid white;
            box-shadow: 0 20px 60px rgba(168, 151, 142, 0.1);
            max-width: 600px;
        }

        .hero-card h1 {
            font-size: 4rem;
            color: var(--soft-coral);
            line-height: 1.1;
            margin-bottom: 25px;
        }

        .hero-card p {
            color: var(--warm-taupe);
            font-size: 1.2rem;
            margin-bottom: 40px;
        }

        /* PROGRAM SECTION */
        .section-padding { padding: 120px 8%; }

        .program-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 30px;
            margin-top: 60px;
        }

        .program-card {
            background: var(--white);
            padding: 40px;
            border-radius: 30px;
            transition: var(--transition);
            position: relative;
            border: 1px solid transparent;
            cursor: pointer;
            overflow: hidden;
        }

        .program-card:hover {
            transform: translateY(-15px);
            border-color: var(--soft-coral);
            box-shadow: 0 30px 60px rgba(242, 184, 160, 0.15);
        }

        .program-card img {
            width: 100%;
            height: 200px;
            border-radius: 20px;
            object-fit: cover;
            margin-bottom: 25px;
        }

        /* FILTER SYSTEM */
        .filter-bar {
            display: flex;
            gap: 15px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .filter-tag {
            padding: 10px 25px;
            background: white;
            border-radius: 50px;
            cursor: pointer;
            font-weight: 500;
            transition: 0.3s;
            border: 1px solid #eee;
        }

        .filter-tag.active {
            background: var(--soft-coral);
            color: white;
            border-color: var(--soft-coral);
        }

        /* CHALLENGES */
        .challenge-container {
            background: var(--pale-mint);
            border-radius: 60px;
            padding: 80px 5%;
        }

        .challenge-card {
            background: rgba(255,255,255,0.5);
            padding: 30px;
            border-radius: 25px;
            border: 1px solid rgba(255,255,255,0.8);
            transition: 0.3s;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .challenge-card:hover {
            background: white;
            transform: scale(1.03);
        }

        /* AUTH MODAL */
        .modal-overlay {
            position: fixed;
            inset: 0;
            background: rgba(92, 92, 92, 0.4);
            backdrop-filter: blur(10px);
            z-index: 2000;
            display: none;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }

        .modal-body {
            background: var(--misty-beige);
            width: 100%;
            max-width: 900px;
            border-radius: 40px;
            overflow: hidden;
            display: flex;
            position: relative;
            box-shadow: 0 40px 100px rgba(0,0,0,0.2);
        }

        .modal-side {
            flex: 1;
            padding: 60px;
            background: var(--white);
        }

        .modal-info {
            flex: 0.8;
            padding: 60px;
            background: var(--soft-coral);
            color: white;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        /* STATS */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            text-align: center;
        }

        .stat-circle {
            width: 150px;
            height: 150px;
            margin: 0 auto 20px;
            border: 8px solid var(--soft-coral);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.5rem;
            color: var(--soft-charcoal);
            background: white;
        }

        /* FOOTER */
        footer {
            background: var(--soft-charcoal);
            color: var(--misty-beige);
            padding: 100px 8% 50px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 50px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            padding-bottom: 60px;
        }

        .footer-col h4 {
            color: var(--soft-coral);
            margin-bottom: 30px;
            font-size: 1.2rem;
        }

        .footer-col ul { list-style: none; }
        .footer-col li { margin-bottom: 15px; }
        .footer-col a {
            color: inherit;
            text-decoration: none;
            opacity: 0.7;
            transition: 0.3s;
        }

        .footer-col a:hover { opacity: 1; color: var(--soft-coral); }

        /* FORM */
        input {
            width: 100%;
            padding: 18px;
            border-radius: 15px;
            border: 2px solid #eee;
            margin-bottom: 20px;
            font-family: inherit;
            outline: none;
            transition: 0.3s;
        }

        input:focus { border-color: var(--soft-coral); }

        .btn-full {
            width: 100%;
            padding: 18px;
            background: var(--soft-coral);
            color: white;
            border: none;
            border-radius: 15px;
            font-weight: 700;
            cursor: pointer;
            transition: 0.3s;
        }

        .btn-full:hover { background: #e0a38b; }

        /* PAGE VISIBILITY */
        .page { display: none; min-height: 100vh; }
        .page.active { display: block; animation: fadeIn 0.8s ease; }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .close-btn {
            position: absolute;
            top: 30px;
            right: 30px;
            background: none;
            border: none;
            cursor: pointer;
            color: var(--warm-taupe);
        }

        /* RESPONSIVE */
        @media (max-width: 1024px) {
            .hero { flex-direction: column; padding-top: 150px; text-align: center; }
            .hero-content { padding-right: 0; margin-bottom: 50px; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .stats-grid { grid-template-columns: 1fr; }
        }
    </style>