/* fidem.dev 공통 스타일. index.html / done.html 이 함께 쓴다. */

:root {
    color-scheme: light dark;
    --bg: #ffffff;
    --surface: #ffffff;
    --fg: #16181d;
    --sub: #5b6270;
    --muted: #8b929e;
    --line: #e3e6ea;
    --key: #1c3f66;
    --key-fg: #ffffff;
    --key-hover: #16324f;
    --ok: #1d6b4f;
    --danger: #a4353b;
    --shadow: 0 1px 2px rgba(16, 20, 28, .06), 0 8px 24px rgba(16, 20, 28, .06);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0e1013;
        --surface: #161a20;
        --fg: #e9ecf1;
        --sub: #a8b0bd;
        --muted: #7d8695;
        --line: #262c35;
        --key: #7fb0e0;
        --key-fg: #0e1013;
        --key-hover: #9cc4ec;
        --ok: #6fc39c;
        --danger: #e2868b;
        --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .3);
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--fg);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
                 "Noto Sans KR", "Apple SD Gothic Neo", sans-serif;
    font-size: 15px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

.wrap {
    max-width: 880px;
    margin: 0 auto;
    padding: 72px 20px 96px;
}

.wrap.narrow { max-width: 480px; }

header { margin-bottom: 44px; }

.brand {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--muted);
    margin: 0 0 10px;
}

h1 {
    font-size: 27px;
    font-weight: 650;
    letter-spacing: -0.02em;
    margin: 0 0 8px;
}

.tagline {
    font-size: 15px;
    color: var(--sub);
    margin: 0;
}

/* --- 상품 목록 --- */

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 18px;
}

.card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 24px 22px 22px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
}

.card h2 {
    font-size: 16px;
    font-weight: 600;
    margin: 0 0 14px;
}

.price {
    display: flex;
    align-items: baseline;
    gap: 5px;
    margin-bottom: 6px;
}

.price .amount {
    font-size: 30px;
    font-weight: 650;
    letter-spacing: -0.02em;
    font-variant-numeric: tabular-nums;
}

.price .unit { font-size: 14px; color: var(--muted); }

.kind {
    font-size: 12.5px;
    color: var(--muted);
    margin: 0 0 18px;
}

.card p.desc {
    font-size: 14px;
    color: var(--sub);
    margin: 0 0 20px;
    flex: 1;
}

/* --- 버튼 --- */

button.buy,
a.buy {
    appearance: none;
    display: block;
    width: 100%;
    padding: 11px 16px;
    border: 0;
    border-radius: 8px;
    background: var(--key);
    color: var(--key-fg);
    font: inherit;
    font-size: 14.5px;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: background .15s;
}

button.buy:hover:not(:disabled),
a.buy:hover { background: var(--key-hover); }

button.buy:focus-visible,
a.buy:focus-visible {
    outline: 2px solid var(--key);
    outline-offset: 2px;
}

button.buy:disabled { opacity: .55; cursor: default; }

button.ghost {
    appearance: none;
    padding: 8px 18px;
    border: 1px solid var(--line);
    border-radius: 7px;
    background: transparent;
    color: var(--fg);
    font: inherit;
    font-size: 14px;
    cursor: pointer;
}

button.ghost:hover { border-color: var(--fg); }

/* --- 불러오는 동안 자리 잡아 두기. 화면이 튀지 않게 --- */

.skeleton .bar {
    background: var(--line);
    border-radius: 5px;
    animation: pulse 1.4s ease-in-out infinite;
}

.skeleton .bar.t { height: 15px; width: 45%; margin-bottom: 16px; }
.skeleton .bar.a { height: 30px; width: 62%; margin-bottom: 20px; }
.skeleton .bar.d { height: 13px; width: 100%; margin-bottom: 8px; }
.skeleton .bar.d2 { height: 13px; width: 72%; margin-bottom: 26px; }
.skeleton .bar.b { height: 41px; width: 100%; }

@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .45; } }

@media (prefers-reduced-motion: reduce) {
    .skeleton .bar { animation: none; }
    button.buy, a.buy { transition: none; }
}

/* --- 안내 상자 --- */

.notice {
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 28px 24px;
    text-align: center;
    color: var(--sub);
    font-size: 14.5px;
}

.notice.error { border-color: var(--danger); color: var(--danger); }

/* --- 결제 결과 --- */

.result {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 30px 26px 26px;
    box-shadow: var(--shadow);
}

.result .mark {
    font-size: 26px;
    line-height: 1;
    margin-bottom: 14px;
}

.result .mark.ok { color: var(--ok); }
.result .mark.wait { color: var(--muted); }
.result .mark.bad { color: var(--danger); }

.result h2 {
    font-size: 19px;
    font-weight: 650;
    letter-spacing: -0.01em;
    margin: 0 0 8px;
}

.result p.lead {
    font-size: 14.5px;
    color: var(--sub);
    margin: 0 0 22px;
}

dl.summary {
    display: grid;
    grid-template-columns: 88px 1fr;
    gap: 8px 14px;
    margin: 0 0 24px;
    padding-top: 20px;
    border-top: 1px solid var(--line);
    font-size: 14px;
}

dl.summary dt { color: var(--muted); }
dl.summary dd { margin: 0; font-variant-numeric: tabular-nums; }

footer {
    margin-top: 56px;
    padding-top: 18px;
    border-top: 1px solid var(--line);
    font-size: 12.5px;
    color: var(--muted);
    display: flex;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}