/* ================= PAGE HERO ================= */

.page-hero {
    padding: 140px 0 80px;
    text-align: center;
    background: linear-gradient(135deg, #ffffff 60%, #f5f5f5 60%);
}

.page-hero h1 {
    font-size: 48px;
    font-weight: 900;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.page-hero p {
    font-size: 20px;
    color: #666;
}

/* ================= FORM SECTION ================= */

.form-section {
    padding: 100px 0;
    background: #ffffff;
}

#participant-form {
    max-width: 750px;
    margin: 0 auto;
    background: #fff;
    padding: 50px;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.05);
}

/* ================= FORM GROUP ================= */

.form-group {
    margin-bottom: 30px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

/* ================= INPUTS ================= */

input,
textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 16px;
    transition: 0.3s ease;
    background: #fafafa;
    resize: none;
}

input:focus,
textarea:focus {
    outline: none;
    border-color: var(--red);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(225,6,0,0.08);
}

/* ================= CHECKBOXES ================= */

.checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    cursor: pointer;
    font-weight: 500;
}

.checkbox input {
    width: 18px;
    height: 18px;
    accent-color: var(--red);
    cursor: pointer;
}

/* ================= CONSENT ================= */

.consent {
    align-items: flex-start;   /* вместо center */
    margin-top: 25px;
    margin-bottom: 30px;
    font-size: 14px;
    color: #666;
    line-height: 1.5;
}

.consent input {
    margin-top: 4px;   /* аккуратное выравнивание */
    flex-shrink: 0;
}

.consent span {
    display: block;
}

.consent a {
    color: var(--red);
    text-decoration: underline;
}

.consent a:hover {
    opacity: 0.8;
}

/* ================= BUTTON ================= */

#participant-form .btn-primary:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

#participant-form .btn-primary {
    width: 100%;
    padding: 16px;
    font-size: 16px;
    border: none;
    cursor: pointer;
    border-radius: 6px;
}

#participant-form .btn-primary:hover {
    transform: translateY(-2px);
}

/* ================= SUCCESS MESSAGE ================= */

.form-success {
    display: none;
    text-align: center;
    padding: 30px;
    background: #f0fff4;
    border: 1px solid #d4edda;
    border-radius: 6px;
    color: #2e7d32;
    margin-top: 20px;
}

/* ================= ERROR STATE ================= */

input.error,
textarea.error {
    border-color: #d32f2f;
    background: #fff5f5;
}

input.valid,
textarea.valid {
    border-color: #2e7d32;
    background: #f4fff7;
}

input.invalid,
textarea.invalid {
    border-color: #d32f2f;
    background: #fff5f5;
}

.field-error {
    font-size: 13px;
    color: #d32f2f;
    margin-top: 5px;
}

/* ================= TOAST ================= */

.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background: #2e7d32;
    color: #fff;
    padding: 16px 22px;
    border-radius: 6px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    font-size: 14px;
    opacity: 0;
    transform: translateY(-20px);
    pointer-events: none;
    transition: 0.4s ease;
    z-index: 2000;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}


/* ================= MOBILE ================= */

@media (max-width: 768px) {

    .page-hero {
        padding: 100px 0 60px;
    }

    .page-hero h1 {
        font-size: 32px;
    }

    .form-section {
        padding: 60px 0;
    }

    #participant-form {
        padding: 25px;
        box-shadow: none;
        border: 1px solid #eee;
    }

    input,
    textarea {
        font-size: 14px;
    }
}