/* ==========================================================
   sns-base admin
   白背景ベース / 大きめの文字と余白 / カード型
   ========================================================== */

:root {
    --color-bg: #f6f7f9;
    --color-surface: #ffffff;
    --color-border: #e3e6ea;
    --color-text: #1f2933;
    --color-muted: #6b7682;
    --color-primary: #2f6fdf;
    --color-primary-dark: #2259b8;
    --color-primary-soft: #eaf1fd;
    --color-success: #1f8a4c;
    --color-success-soft: #e6f5ec;
    --color-warning: #b26a00;
    --color-warning-soft: #fdf3e1;
    --color-danger: #c62f3b;
    --color-danger-soft: #fdecee;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 1px 3px rgba(16, 24, 40, .06);
    --font: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic UI", Meiryo, system-ui, sans-serif;
}

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

html {
    font-size: 16px;
}

body {
    margin: 0;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font);
    font-size: 1rem;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--color-primary);
}

a:hover {
    color: var(--color-primary-dark);
}

h1, h2, h3 {
    line-height: 1.4;
}

/* ---------- Layout ---------- */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 24px 48px;
}

.topbar {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.topbar__inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 12px 24px;
    display: flex;
    align-items: center;
    gap: 32px;
    flex-wrap: wrap;
}

.topbar__brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    text-decoration: none;
    letter-spacing: .02em;
}

.topbar__nav {
    display: flex;
    gap: 4px;
    flex: 1;
    flex-wrap: wrap;
}

.topbar__nav a {
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
}

.topbar__nav a:hover {
    background: var(--color-bg);
}

.topbar__nav a.is-active {
    background: var(--color-primary-soft);
    color: var(--color-primary-dark);
    font-weight: 700;
}

.topbar__user {
    display: flex;
    align-items: center;
    gap: 12px;
}

.topbar__username {
    color: var(--color-muted);
    font-size: .9375rem;
}

.footer {
    color: var(--color-muted);
    font-size: .875rem;
}

.footer .container {
    padding-top: 0;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 28px;
}

.page-title {
    margin: 0;
    font-size: 1.75rem;
}

.page-lead {
    margin: 4px 0 0;
    color: var(--color-muted);
}

/* ---------- Card ---------- */

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 28px;
    margin-bottom: 24px;
}

.card__header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 16px;
}

.card__title {
    margin: 0 0 20px;
    font-size: 1.25rem;
}

.empty {
    margin: 0;
    padding: 24px 0;
    color: var(--color-muted);
    text-align: center;
}

.muted {
    color: var(--color-muted);
}

.small {
    font-size: .875rem;
}

.nowrap {
    white-space: nowrap;
}

.link {
    font-weight: 500;
    text-decoration: none;
}

/* ---------- Stats ---------- */

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.stats .card {
    margin-bottom: 0;
}

.stat {
    display: block;
    color: inherit;
    text-decoration: none;
}

.stat--link:hover {
    border-color: var(--color-primary);
    color: inherit;
}

.stat__label {
    color: var(--color-muted);
    font-weight: 500;
}

.stat__value {
    margin-top: 8px;
    font-size: 2.25rem;
    font-weight: 700;
    line-height: 1.2;
}

.stat__unit {
    margin-left: 4px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-muted);
}

.stat--danger .stat__value {
    color: var(--color-danger);
}

/* ---------- Timeline ---------- */

.timeline {
    list-style: none;
    margin: 0;
    padding: 0;
}

.timeline__item {
    display: flex;
    gap: 24px;
    padding: 16px 0;
    border-top: 1px solid var(--color-border);
}

.timeline__item:first-child {
    border-top: 0;
    padding-top: 0;
}

.timeline__time {
    flex: 0 0 64px;
    font-size: 1.25rem;
    font-weight: 700;
}

.timeline__body {
    flex: 1;
    min-width: 0;
}

.timeline__meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 4px;
}

.timeline__text {
    color: var(--color-text);
    text-decoration: none;
    word-break: break-word;
}

.timeline__text:hover {
    text-decoration: underline;
}

/* ---------- Table ---------- */

.table-wrap {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 14px 12px;
    border-bottom: 1px solid var(--color-border);
    text-align: left;
    vertical-align: top;
}

.table th {
    color: var(--color-muted);
    font-size: .875rem;
    font-weight: 600;
    white-space: nowrap;
    background: #fafbfc;
}

.table tbody tr:hover {
    background: #fafbfc;
}

.table .num {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.cell-body {
    min-width: 240px;
    word-break: break-word;
}

.cell-title {
    font-weight: 700;
}

/* ---------- Badge / Tag ---------- */

.badge,
.tag {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 999px;
    font-size: .8125rem;
    font-weight: 600;
    line-height: 1.6;
    white-space: nowrap;
}

.tag {
    background: var(--color-bg);
    color: var(--color-muted);
    border: 1px solid var(--color-border);
}

.badge--draft {
    background: #eef0f3;
    color: #4b5563;
}

.badge--scheduled {
    background: var(--color-warning-soft);
    color: var(--color-warning);
}

.badge--publishing {
    background: var(--color-primary-soft);
    color: var(--color-primary-dark);
}

.badge--published {
    background: var(--color-success-soft);
    color: var(--color-success);
}

.badge--failed {
    background: var(--color-danger-soft);
    color: var(--color-danger);
}

/* ---------- Buttons ---------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font: inherit;
    font-weight: 600;
    line-height: 1.4;
    text-decoration: none;
    cursor: pointer;
    transition: background-color .15s, border-color .15s;
}

.btn:focus-visible {
    outline: 3px solid rgba(47, 111, 223, .35);
    outline-offset: 2px;
}

.btn--primary {
    background: var(--color-primary);
    color: #fff;
}

.btn--primary:hover {
    background: var(--color-primary-dark);
    color: #fff;
}

.btn--secondary {
    background: var(--color-surface);
    border-color: var(--color-border);
    color: var(--color-text);
}

.btn--secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary-dark);
}

.btn--ghost {
    background: transparent;
    color: var(--color-muted);
}

.btn--ghost:hover {
    background: var(--color-bg);
    color: var(--color-text);
}

.btn--sm {
    padding: 6px 12px;
    font-size: .875rem;
}

.btn--lg {
    padding: 14px 28px;
    font-size: 1.0625rem;
}

.btn--block {
    width: 100%;
}

.inline-form {
    display: inline;
    margin: 0;
}

/* ---------- Forms ---------- */

.form__row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 0 24px;
}

.form__group {
    margin-bottom: 24px;
}

.form__label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.form__control {
    display: block;
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #cfd5dc;
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--color-text);
    font: inherit;
    line-height: 1.5;
}

.form__control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(47, 111, 223, .18);
}

.form__textarea {
    min-height: 240px;
    resize: vertical;
    line-height: 1.8;
}

.form__help {
    margin: 6px 0 0;
    color: var(--color-muted);
    font-size: .875rem;
}

.form__error {
    margin: 6px 0 0;
    color: var(--color-danger);
    font-size: .9375rem;
    font-weight: 600;
}

.form__fieldset {
    margin: 8px 0 24px;
    padding: 20px 24px 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.form__fieldset legend {
    padding: 0 8px;
    font-weight: 700;
}

.form__actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    padding-top: 8px;
}

.required,
.optional {
    margin-left: 6px;
    padding: 1px 8px;
    border-radius: 4px;
    font-size: .75rem;
    font-weight: 600;
    vertical-align: 1px;
}

.required {
    background: var(--color-danger-soft);
    color: var(--color-danger);
}

.optional {
    background: var(--color-bg);
    color: var(--color-muted);
}

.checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 24px;
    cursor: pointer;
}

.checkbox input {
    width: 20px;
    height: 20px;
}

.char-counter {
    margin-top: 6px;
    text-align: right;
    color: var(--color-muted);
    font-variant-numeric: tabular-nums;
}

.char-counter__count {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-text);
}

.char-counter.is-near .char-counter__count {
    color: var(--color-warning);
}

.char-counter.is-over,
.char-counter.is-over .char-counter__count {
    color: var(--color-danger);
}

/* ---------- Filters ---------- */

.filters {
    display: flex;
    align-items: flex-end;
    gap: 20px;
    flex-wrap: wrap;
}

.filters__item {
    flex: 1 1 200px;
}

.filters__actions {
    display: flex;
    gap: 8px;
}

/* ---------- Edit page ---------- */

.edit-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 24px;
    align-items: start;
}

.edit-aside {
    position: sticky;
    top: 24px;
}

.metrics {
    margin: 0 0 12px;
    display: grid;
    gap: 12px;
}

.metrics div {
    display: flex;
    justify-content: space-between;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-border);
}

.metrics dt {
    color: var(--color-muted);
}

.metrics dd {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

/* ---------- Alerts ---------- */

.alert {
    margin-bottom: 20px;
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    font-weight: 500;
}

.alert--success {
    background: var(--color-success-soft);
    border-color: #bfe3cd;
    color: #17663a;
}

.alert--info {
    background: var(--color-primary-soft);
    border-color: #c9dbf9;
    color: var(--color-primary-dark);
}

.alert--error {
    background: var(--color-danger-soft);
    border-color: #f5c4c9;
    color: #9d2230;
}

/* ---------- Pagination ---------- */

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    margin-top: 24px;
}

.pagination__info {
    color: var(--color-muted);
}

/* ---------- Login ---------- */

.login-page {
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.login {
    width: 100%;
    max-width: 420px;
}

.login__card {
    padding: 40px 36px;
}

.login__title {
    margin: 0;
    text-align: center;
    font-size: 1.75rem;
}

.login__lead {
    margin: 4px 0 28px;
    text-align: center;
    color: var(--color-muted);
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
    .edit-layout {
        grid-template-columns: 1fr;
    }

    .edit-aside {
        position: static;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 24px 16px 40px;
    }

    .card {
        padding: 20px;
    }

    .topbar__inner {
        gap: 12px;
        padding: 12px 16px;
    }

    .page-title {
        font-size: 1.5rem;
    }

    .form__actions .btn {
        flex: 1 1 100%;
    }
}