*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Noto Sans JP', sans-serif;
    background: #1a130a;
    overflow: hidden;
}

/* ── 背景写真 ─────────────────────────────── */
.wedding-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
}
.wedding-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.38) saturate(0.7);
    transform: scale(1.03);
}
.wedding-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        160deg,
        rgba(30, 18, 6, 0.55) 0%,
        rgba(80, 55, 25, 0.3) 100%
    );
}

/* ── カード ───────────────────────────────── */
.login-card {
    position: relative;
    z-index: 10;
    width: 420px;
    max-width: calc(100vw - 32px);
    background: rgba(255, 252, 247, 0.94);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 2px;
    padding: 52px 46px 44px;
    box-shadow:
        0 24px 64px rgba(0, 0, 0, 0.45),
        0 0 0 1px rgba(179, 139, 89, 0.25);
}

/* ── モノグラム ───────────────────────────── */
.monogram {
    font-family: 'Playfair Display', serif;
    font-size: 2.6rem;
    font-weight: 400;
    color: #b38b59;
    text-align: center;
    letter-spacing: 10px;
    margin-bottom: 18px;
}

/* ── 装飾ライン ───────────────────────────── */
.ornament {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 34px;
}
.ornament::before,
.ornament::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, transparent, #d4b896, transparent);
}
.ornament span {
    font-size: 0.68rem;
    letter-spacing: 3.5px;
    text-transform: uppercase;
    color: #b38b59;
    white-space: nowrap;
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 400;
}

/* ── フォームタイトル ─────────────────────── */
.login-card h2 {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 400;
    color: #3d2f25;
    text-align: center;
    margin-bottom: 30px;
    letter-spacing: 1px;
}

/* ── エラー・サクセスメッセージ ──────────── */
.alert {
    padding: 11px 16px;
    border-radius: 3px;
    font-size: 0.88rem;
    margin-bottom: 22px;
    line-height: 1.6;
}
.alert-error {
    background: #fdf2f2;
    border-left: 3px solid #c0392b;
    color: #8b1a1a;
}
.alert-info {
    background: #fef9f0;
    border-left: 3px solid #b38b59;
    color: #7a5c30;
}

/* ── フォームグループ ─────────────────────── */
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    font-size: 0.75rem;
    color: #9b8573;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 7px;
    font-weight: 400;
}
.form-group input {
    width: 100%;
    padding: 13px 15px;
    border: 1px solid #e2d0bc;
    border-radius: 2px;
    font-size: 0.95rem;
    font-family: 'Noto Sans JP', sans-serif;
    background: #fffdf9;
    color: #3d2f25;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.form-group input:focus {
    border-color: #b38b59;
    outline: none;
    box-shadow: 0 0 0 3px rgba(179, 139, 89, 0.13);
}

/* ── 送信ボタン ───────────────────────────── */
.btn-submit {
    width: 100%;
    padding: 14px;
    margin-top: 6px;
    background: #b38b59;
    color: #fff;
    border: none;
    border-radius: 2px;
    font-size: 0.9rem;
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 500;
    letter-spacing: 3px;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
}
.btn-submit:hover  { background: #9a7447; }
.btn-submit:active { transform: scale(0.99); }

/* ── 下部リンク ───────────────────────────── */
.card-footer {
    margin-top: 26px;
    text-align: center;
    font-size: 0.83rem;
    color: #a89282;
    line-height: 1.8;
}
.card-footer a {
    color: #b38b59;
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color 0.2s;
}
.card-footer a:hover { color: #9a7447; }

/* ── レスポンシブ ─────────────────────────── */
@media (max-width: 480px) {
    .login-card { padding: 36px 20px 32px; }
    .monogram   { font-size: 2.1rem; }
}