:root {
    --scd-red: #CE0E2D;
    --scd-red-dark: #A90C25;
    --scd-red-soft: #F9E7EA;
    --scd-black: #1D1D1B;
    --scd-gray: #54565A;
    --scd-light-gray: #C8C8C8;
    --surface: #FFFFFF;
    --background: #F5F5F6;
    --border: #E2E2E3;
    --success: #16784A;
    --warning: #B76A00;
    --info: #2563B8;
    --shadow-sm: 0 2px 10px rgba(29, 29, 27, 0.06);
    --shadow-lg: 0 22px 55px rgba(29, 29, 27, 0.13);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 24px;
}

* { box-sizing: border-box; }

html { font-size: 100%; }
@media screen and (max-width:680px) {
    :is(.notice-modal-dialog,.schedule-modal>section,.admin-modal-dialog) {
        max-width:calc(100vw - 2rem);max-height:calc(100dvh - 2rem);overflow-y:auto;
        font-size:.95rem;line-height:1.5;overflow-wrap:anywhere;
    }
    :is(.notice-modal-dialog,.schedule-modal,.admin-modal-dialog) :is(input,select,textarea) {font-size:1rem}
    :is(.notice-modal-dialog,.schedule-modal,.admin-modal-dialog) :is(label,p,.notice-author) {font-size:.9rem}
    :is(.notice-modal-dialog,.schedule-modal,.admin-modal-dialog) :is(h2,h3) {font-size:1.15rem}
    .notice-modal-dialog .notice-author {flex-wrap:wrap}
    :is(.notice-modal-dialog,.schedule-modal,.admin-modal-dialog) footer {flex-wrap:wrap;gap:.5rem}
}
@media print { html { font-size: 16px; } }

body {
    margin: 0;
    color: var(--scd-black);
    background: var(--background);
    font-family: "Pretendard", "Noto Sans KR", "Malgun Gothic", Arial, sans-serif;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

button, input, select, textarea { font: inherit; }
button { cursor: pointer; transition: filter 160ms ease, box-shadow 160ms ease, background-color 160ms ease, border-color 160ms ease; }
button:hover:not(:disabled) { filter: brightness(.94); box-shadow: 0 3px 9px rgba(29, 29, 27, .12); }
button:disabled { cursor: not-allowed; opacity: .65; }
button, a { -webkit-tap-highlight-color: transparent; }

a { color: inherit; }

.button {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0 18px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.button:active { transform: translateY(1px); }
.button:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, a:focus-visible, summary:focus-visible {
    outline: 3px solid rgba(206, 14, 45, 0.22);
    outline-offset: 2px;
}

.button-primary { color: #fff; background: var(--scd-red); }
.button-primary:hover { background: var(--scd-red-dark); }
.button-ghost { color: var(--scd-gray); background: #fff; border-color: var(--border); }
.button-ghost:hover { color: var(--scd-black); background: #f7f7f7; }

.eyebrow {
    margin: 0 0 6px;
    color: var(--scd-red);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.12em;
}

.simple-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.message-card {
    width: min(100%, 480px);
    padding: 40px;
    text-align: center;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.message-card h1 { margin: 8px 0; font-size: 1.5rem; }
.message-card p { margin: 0 0 24px; color: var(--scd-gray); }
.message-code { color: var(--scd-red); font-size: 2.5rem; font-weight: 800; }