:root {
    --primary-navy: #193750;
    --primary-gold: #b89d44;
    --primary-gold-hover: #978037;
    --light-bg: #f4f7fc;
    --white: #ffffff;
}

.reg-section {
    background-color: var(--light-bg);
    padding: 80px 0;
    min-height: 100vh;
}

.reg-card {
    background: var(--white);
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(25, 55, 80, 0.15);
    border: 1px solid rgba(184, 157, 68, 0.2);
    overflow: hidden;
    transition: transform 0.3s ease;
}

.reg-card-header {
    background: linear-gradient(135deg, var(--primary-navy) 0%, #0d1c29 100%);
    padding: 30px;
    text-align: center;
    border-bottom: 4px solid var(--primary-gold);
}

    .reg-card-header h2 {
        color: var(--primary-gold);
        font-family: 'Inter', sans-serif;
        font-weight: 700;
        margin: 0;
        letter-spacing: 1px;
        text-transform: uppercase;
    }

.reg-card-body {
    padding: 40px;
}

.form-label-premium {
    color: var(--primary-navy);
    font-weight: 600;
    margin-bottom: 8px;
    display: block;
}

.form-control-premium {
    border: 2px solid #e1e5eb;
    border-radius: 8px;
    padding: 12px 15px;
    transition: all 0.3s ease;
    background-color: #fcfcfc;
}

    .form-control-premium:focus {
        border-color: var(--primary-gold);
        box-shadow: 0 0 0 4px rgba(184, 157, 68, 0.1);
        outline: none;
    }

.upload-box {
    border: 2px dashed #ccc;
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #fafafa;
}

    .upload-box:hover {
        border-color: var(--primary-gold);
        background: #fffdf5;
    }

.upload-icon {
    font-size: 2rem;
    color: var(--primary-gold);
    margin-bottom: 10px;
}

.charter-box {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 20px;
    height: 250px;
    overflow-y: scroll;
    margin-bottom: 20px;
    font-size: 0.9rem;
    line-height: 1.8;
    color: #444;
    box-shadow: inset 0 2px 5px rgba(0,0,0,0.05);
}

.charter-title {
    color: var(--primary-navy);
    font-weight: bold;
    margin-bottom: 10px;
    display: block;
    font-size: 1.1rem;
    border-bottom: 1px solid var(--primary-gold);
    padding-bottom: 5px;
}

.btn-register-premium {
    background-color: var(--primary-navy);
    color: var(--white);
    border: 2px solid var(--primary-navy);
    padding: 12px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.4s ease;
    width: 100%;
    display: block;
    margin-top: 20px;
}

    .btn-register-premium:hover {
        background-color: var(--primary-gold);
        border-color: var(--primary-gold);
        color: var(--white);
        transform: translateY(-2px);
    }

    .btn-register-premium:disabled {
        background-color: #ccc;
        border-color: #ccc;
        cursor: not-allowed;
        transform: none;
    }

.custom-checkbox .form-check-input:checked {
    background-color: var(--primary-gold);
    border-color: var(--primary-gold);
}