@import url('https://fonts.googleapis.com/css2?family=Lexend:wght@300;400;500;600&display=swap');

html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    font-family: 'Lexend', sans-serif;
    box-sizing: border-box;
}

body {
    background: url("../images/woods.jpg") no-repeat center center fixed;
    background-size: cover;
    overflow-x: hidden;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 10px 0;
    background-color: #8a958322;
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
    flex-wrap: wrap;
}

.navbar-menu {
    list-style: none;
    display: flex;
    gap: 40px;
    margin: 0;
    padding: 0;
}

.navbar a {
    text-decoration: none;
    color: #ddebd5;
    font-size: clamp(1rem, 2vw, 2em);
    font-weight: normal;
    text-shadow: 0 0 5px #707d5b, 0 0 10px #7d936f;
    transition: color 0.3s ease;
}

.navbar a:hover {
    color: #ffffff;
}

.logout-button {
    color: #a7bfe9;
    padding: 6px 12px;
    font-size: clamp(1rem, 2vw, 1.2rem);
    border-radius: 6px;
    font-weight: bold;
    text-shadow: 0 0 4px #142976;
    text-decoration: none;
    transition: all 0.3s ease;
}

.register_section_css {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    padding-top: 60px;
    box-sizing: border-box;
}

.register_section_css .container {
    background-color: rgba(255, 255, 255, 0.88);
    border-radius: 10px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.25);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    animation: fadeIn 0.8s ease-in-out;
    width: clamp(220px, 25vw, 340px);
    padding: clamp(1rem, 2.5vw, 2rem);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

legend {
    font-size: clamp(1.1rem, 1.8vw, 1.5rem);
    font-weight: 600;
    color: #333;
    margin-bottom: clamp(0.8rem, 1.2vw, 1.2rem);
}

.form-control-label {
    font-weight: 500;
    color: #333;
    font-size: clamp(0.8rem, 1vw, 0.95rem);
    text-align: left;
    width: 100%;
}

.form-control-lg {
    width: 90%;
    padding: clamp(0.45rem, 1vw, 0.7rem);
    margin-bottom: clamp(0.6rem, 1vw, 0.9rem);
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: clamp(0.85rem, 1vw, 1rem);
    transition: all 0.25s ease;
}

.form-control-lg:focus {
    border-color: #4CAF50;
    box-shadow: 0 0 6px rgba(76, 175, 80, 0.3);
}

.is-invalid {
    border-color: #dc3545 !important;
    background-color: #fff5f5;
}

.invalid-feedback {
    color: #dc3545;
    font-size: 0.8rem;
    margin-top: -0.3rem;
    margin-bottom: 0.7rem;
}

.btn-outline-info {
    width: 100%;
    padding: clamp(0.5rem, 1vw, 0.7rem);
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: clamp(0.85rem, 1vw, 1rem);
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s ease;
}

.btn-outline-info:hover {
    background-color: #45a049;
}

.border-top {
    margin-top: clamp(0.8rem, 1.2vw, 1.2rem);
    padding-top: clamp(0.6rem, 1vw, 0.8rem);
    border-top: 1px solid #ccc;
    width: 100%;
    text-align: center;
    font-size: clamp(0.8rem, 0.9vw, 0.95rem);
    color: #333;
}

.border-top a {
    color: #4CAF50;
    text-decoration: none;
    font-weight: bold;
}

.border-top a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        align-items: center;
        height: auto;
        padding: 6px 0;
    }

    .navbar-menu {
        flex-direction: column;
        gap: 5px;
        align-items: center;
    }

    .logout-button {
        position: static;
        transform: none;
        font-size: clamp(0.8rem, 2vw, 1em);
    }

    .register_section_css {
        padding-top: 80px;
    }
}

@media (max-width: 480px) {
    .register_section_css {
        padding-top: 90px;
    }

    .register_section_css .container {
        width: clamp(200px, 65vw, 280px);
        padding: clamp(0.8rem, 3vw, 1.2rem);
    }

    legend {
        font-size: clamp(1rem, 4vw, 1.2rem);
    }
}