:root {
    --bsn-cyan: #05a4dc;
    --bsn-navy: #063f5b;
    --bsn-yellow: #f7b900;
    --bsn-text: #333333;
    --bsn-white: #ffffff;
}

html.bsn-notice-lock,
body.bsn-notice-lock {
    overflow: hidden !important;
}

.bsn-notice {
    position: fixed;
    inset: 0;
    z-index: 2147483000;
    display: grid;
    place-items: center;
    padding: 24px;
    visibility: hidden;
    pointer-events: none;
}

.bsn-notice.is-open {
    visibility: visible;
    pointer-events: auto;
}

.bsn-notice__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(3, 39, 57, 0.68);
    opacity: 0;
    transition: opacity 220ms ease;
    backdrop-filter: blur(2px);
}

.bsn-notice__dialog {
    position: relative;
    width: min(680px, 100%);
    max-height: calc(100vh - 48px);
    overflow: auto;
    background: var(--bsn-white);
    border-radius: 4px;
    box-shadow: 0 22px 70px rgba(0, 0, 0, 0.28);
    opacity: 0;
    transform: translateY(-52px) scale(0.985);
    transition: transform 320ms cubic-bezier(.2,.8,.2,1), opacity 220ms ease;
    outline: none;
}

.bsn-notice.is-open .bsn-notice__backdrop {
    opacity: 1;
}

.bsn-notice.is-open .bsn-notice__dialog {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.bsn-notice__accent {
    height: 10px;
    background: linear-gradient(90deg, var(--bsn-cyan) 0 76%, var(--bsn-yellow) 76% 100%);
}

.bsn-notice__content {
    padding: 34px 38px 36px;
}

.bsn-notice__eyebrow {
    margin-bottom: 8px;
    color: var(--bsn-cyan);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.09em;
}

.bsn-notice__title {
    margin: 0 0 18px;
    color: var(--bsn-navy);
    font-size: clamp(1.55rem, 4vw, 2.25rem);
    line-height: 1.15;
    font-weight: 700;
}

.bsn-notice__message {
    color: var(--bsn-text);
    font-size: 1.04rem;
    line-height: 1.65;
}

.bsn-notice__button {
    width: 100%;
    margin-top: 28px;
    padding: 14px 22px;
    border: 0;
    border-radius: 3px;
    background: var(--bsn-yellow);
    color: #3c3c3c;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 2px 0 rgba(0, 0, 0, 0.08);
    transition: transform 120ms ease, filter 120ms ease;
}

.bsn-notice__button:hover {
    filter: brightness(0.97);
    transform: translateY(-1px);
}

.bsn-notice__button:focus-visible {
    outline: 3px solid var(--bsn-cyan);
    outline-offset: 3px;
}

@media (max-width: 575px) {
    .bsn-notice {
        padding: 14px;
    }

    .bsn-notice__dialog {
        max-height: calc(100vh - 28px);
    }

    .bsn-notice__content {
        padding: 26px 22px 24px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .bsn-notice__backdrop,
    .bsn-notice__dialog,
    .bsn-notice__button {
        transition: none !important;
    }
}