:root {
    --abc-color-primary: #005bac;
    --abc-color-primary-dark: #004182;
    --abc-color-navy: #002b55;
    --abc-color-gold: #c5a059;
    --abc-color-gold-light: #e6dcc5;
    --abc-color-beige: #f9f8f4;
    --abc-color-text: #333333;
    --abc-color-text-light: #666666;
    --abc-color-white: #ffffff;
    --abc-shadow-soft: 0 10px 40px -10px rgba(0, 0, 0, 0.08);
}

.abc-line-start {
    font-family: var(--abc-font-primary);
    color: var(--abc-color-text);
    background: var(--abc-color-beige);
    min-height: 100vh;
}

.abc-line-start a {
    text-decoration: none !important;
}

.abc-line-start__header {
    padding: 24px 20px 16px;
    text-align: center;
    background: var(--abc-color-white);
    border-bottom: 1px solid var(--abc-color-gold-light);
}

.abc-line-start__brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    max-width: 700px;
    margin: 0 auto;
}

.abc-line-start__brand .custom-logo-link img,
.abc-line-start__brand .custom-mobile-logo-link img {
    max-height: 48px;
    width: auto;
    display: block;
}

.abc-line-start__brand-name {
    font-size: clamp(13px, 3.2vw, 15px);
    color: var(--abc-color-navy);
    letter-spacing: 0.04em;
    white-space: nowrap;
}

.abc-line-start__main {
    max-width: 640px;
    margin: 0 auto;
    padding: 56px 24px 80px;
}

@media (max-width: 600px) {
    .abc-line-start__main {
        padding: 40px 20px 64px;
    }
}

.abc-line-start__heading {
    font-size: clamp(20px, 5.5vw, 32px);
    line-height: 1.5;
    color: var(--abc-color-navy);
    text-align: center;
    margin: 0 0 40px;
    letter-spacing: 0.04em;
}

.abc-line-start .abc-heading-unit {
    display: inline-block;
    white-space: nowrap;
}

@media (max-width: 400px) {
    .abc-line-start .abc-heading-unit {
        display: block;
        white-space: normal;
    }
}

.abc-line-start__form {
    background: var(--abc-color-white);
    padding: 40px 32px;
    border-radius: 4px;
    box-shadow: var(--abc-shadow-soft);
}

@media (max-width: 600px) {
    .abc-line-start__form {
        padding: 32px 20px;
    }
}

.abc-line-start__honeypot {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.abc-line-start__fieldset {
    border: none;
    padding: 0;
    margin: 0 0 32px;
}

.abc-line-start__fieldset:last-of-type {
    margin-bottom: 40px;
}

.abc-line-start__legend {
    font-size: clamp(15px, 4vw, 17px);
    font-weight: 600;
    color: var(--abc-color-navy);
    margin-bottom: 16px;
    padding: 0;
    letter-spacing: 0.04em;
}

.abc-line-start__option {
    display: flex;
    align-items: center;
    min-height: 48px;
    padding: 8px 16px;
    margin-bottom: 8px;
    border: 1px solid var(--abc-color-gold-light);
    border-radius: 4px;
    cursor: pointer;
    font-size: 15px;
    color: var(--abc-color-text);
    transition: background 0.2s, border-color 0.2s;
}

.abc-line-start__option:hover {
    background: var(--abc-color-beige);
    border-color: var(--abc-color-gold);
}

.abc-line-start__option input[type="checkbox"] {
    margin-right: 12px;
    width: 18px;
    height: 18px;
    accent-color: var(--abc-color-primary);
    flex-shrink: 0;
}

.abc-line-start__submit {
    display: block;
    width: 100%;
    padding: 18px 24px;
    font-size: clamp(16px, 4.2vw, 18px);
    font-family: var(--abc-font-primary);
    font-weight: 600;
    color: var(--abc-color-white);
    background: var(--abc-color-primary);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    letter-spacing: 0.08em;
    transition: background 0.2s, opacity 0.2s;
}

.abc-line-start__submit:hover:not(:disabled) {
    background: var(--abc-color-primary-dark);
}

.abc-line-start__submit:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.abc-line-start__notice {
    margin: 20px 0 0;
    font-size: 12px;
    line-height: 1.6;
    color: var(--abc-color-text-light);
    text-align: center;
}

.abc-line-start__complete {
    background: var(--abc-color-white);
    padding: 56px 32px;
    border-radius: 4px;
    box-shadow: var(--abc-shadow-soft);
    text-align: center;
}

@media (max-width: 600px) {
    .abc-line-start__complete {
        padding: 40px 20px;
    }
}

.abc-line-start__complete-text {
    font-size: clamp(15px, 4vw, 17px);
    line-height: 1.8;
    color: var(--abc-color-navy);
    margin: 0 0 32px;
    letter-spacing: 0.04em;
}

.abc-line-start__line-button {
    display: inline-block;
    min-width: 240px;
    padding: 18px 32px;
    font-size: clamp(16px, 4.2vw, 18px);
    font-weight: 600;
    color: var(--abc-color-white);
    background: var(--abc-color-primary);
    border-radius: 4px;
    letter-spacing: 0.08em;
    transition: background 0.2s;
}

.abc-line-start__line-button:hover {
    background: var(--abc-color-primary-dark);
}

.abc-line-start__noscript {
    background: var(--abc-color-white);
    padding: 32px 24px;
    border-radius: 4px;
    box-shadow: var(--abc-shadow-soft);
    text-align: center;
    margin-top: 32px;
}

.abc-line-start__noscript p {
    margin: 0 0 16px;
    font-size: 14px;
    line-height: 1.7;
    color: var(--abc-color-text);
}