/* admin 后台样式 — 跟主站 OPPO Sans+navy 对齐 */
/* 详见 SPRINT.md 视觉调性章节 */

@import url("https://chinese-fonts-cdn.deno.dev/packages/opposans/dist/OPPOSans-Regular/result.css");
@import url("https://chinese-fonts-cdn.deno.dev/packages/opposans/dist/OPPOSans-Bold/result.css");
@import url("https://chinese-fonts-cdn.deno.dev/packages/opposans/dist/OPPOSans-Heavy/result.css");

:root {
    --navy-900: #0a1628;
    --navy-800: #0f2035;
    --navy-700: #1a3a5c;
    --blue-500: #2563eb;
    --blue-400: #3b82f6;
    --blue-300: #60a5fa;
    --gold: #d4a853;
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-500: #64748b;
    --gray-700: #334155;
    --gray-900: #0f172a;
    --font: "OPPO Sans", "OPPOSans", -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { font-family: var(--font); color: var(--gray-900); background: var(--gray-50); min-height: 100vh; }

/* sidebar */
.admin-shell { display: flex; min-height: 100vh; }
.sidebar {
    width: 240px;
    background: var(--navy-900);
    color: white;
    padding: 32px 20px;
    flex-shrink: 0;
}
.sidebar-logo { font-size: 18px; font-weight: 800; margin-bottom: 36px; letter-spacing: 1px; }
.sidebar-nav a {
    display: block;
    padding: 12px 14px;
    color: rgba(255,255,255,0.75);
    text-decoration: none;
    border-radius: 8px;
    margin-bottom: 4px;
    font-size: 14px;
    transition: all 0.2s;
}
.sidebar-nav a:hover { background: rgba(255,255,255,0.06); color: white; }
.sidebar-nav a.active { background: var(--blue-500); color: white; }

/* main */
.admin-main { flex: 1; padding: 36px 48px; max-width: 1100px; }
.page-title { font-size: 28px; font-weight: 800; margin-bottom: 8px; color: var(--navy-900); letter-spacing: 1px; }
.page-subtitle { font-size: 14px; color: var(--gray-500); margin-bottom: 36px; }

/* card */
.card {
    background: white;
    border-radius: var(--radius);
    padding: 28px 32px;
    box-shadow: var(--shadow);
    margin-bottom: 24px;
    border: 1px solid var(--gray-100);
}
.card h2 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 18px;
    color: var(--navy-900);
}

/* form */
label { display: block; font-size: 13px; font-weight: 600; color: var(--gray-700); margin-bottom: 8px; letter-spacing: 0.3px; }
input[type="text"], input[type="url"], textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    font-family: var(--font);
    font-size: 14px;
    color: var(--gray-900);
    margin-bottom: 18px;
    transition: border-color 0.2s;
}
input:focus, textarea:focus { border-color: var(--blue-500); outline: none; }
textarea { min-height: 120px; resize: vertical; }
select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    font-family: var(--font);
    font-size: 14px;
    color: var(--gray-900);
    background: white;
    margin-bottom: 18px;
}

/* btn */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: 8px;
    font-family: var(--font);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    border: none;
}
.btn:disabled { opacity: 0.58; cursor: wait; }
.btn-primary { background: var(--blue-500); color: white; }
.btn-primary:hover { background: var(--blue-400); }
.btn-outline { background: white; color: var(--navy-900); border: 1px solid var(--gray-200); }
.btn-outline:hover { border-color: var(--blue-500); color: var(--blue-500); }
.btn-outline.danger { color: #b91c1c; border-color: #fecaca; }
.btn-outline.danger:hover { border-color: #ef4444; color: #991b1b; }

.card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}
.card-head h2 { margin-bottom: 0; }

.form-row {
    display: grid;
    gap: 18px;
}
.form-row.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.muted {
    color: var(--gray-500);
    font-size: 14px;
    line-height: 1.7;
}

.status-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.metric {
    background: white;
    border: 1px solid var(--gray-100);
    border-radius: 8px;
    padding: 22px 24px;
}
.metric span {
    display: block;
    color: var(--navy-900);
    font-size: 30px;
    font-weight: 900;
    line-height: 1;
    margin-bottom: 8px;
}
.metric p {
    color: var(--gray-500);
    font-size: 13px;
}

/* image thumb (功能 1 直连点选) */
.image-thumb {
    display: inline-block;
    width: 160px;
    height: 120px;
    border-radius: 8px;
    background: var(--gray-100) center/cover no-repeat;
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color 0.2s;
    position: relative;
}
.image-thumb:hover { border-color: var(--blue-500); }
.image-thumb::after {
    content: "点击替换";
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 600;
    border-radius: 6px;
    opacity: 0;
    transition: opacity 0.2s;
}
.image-thumb:hover::after { opacity: 1; }

.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 14px;
}
.image-grid.compact {
    grid-template-columns: repeat(auto-fill, minmax(132px, 1fr));
    max-height: 58vh;
    overflow: auto;
    padding-right: 4px;
}
.image-card {
    border: 1px solid var(--gray-200);
    background: white;
    border-radius: 8px;
    padding: 8px;
    text-align: left;
    cursor: pointer;
    font-family: var(--font);
    transition: border-color 0.2s, transform 0.2s;
}
.image-card:hover {
    border-color: var(--blue-500);
    transform: translateY(-1px);
}
.image-card-thumb {
    display: block;
    width: 100%;
    aspect-ratio: 4 / 3;
    background: var(--gray-100) center/cover no-repeat;
    border-radius: 6px;
    margin-bottom: 8px;
}
.image-card-name,
.image-card-folder {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.image-card-name { color: var(--gray-900); font-size: 13px; font-weight: 700; }
.image-card-folder { color: var(--gray-500); font-size: 11px; margin-top: 2px; }

.modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(10, 22, 40, 0.62);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}
.modal-panel {
    width: min(960px, 100%);
    max-height: 88vh;
    overflow: hidden;
    background: white;
    border-radius: 10px;
    padding: 24px;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
}
.modal-head,
.modal-tools {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}
.modal-head h2 {
    margin: 0 0 4px;
    color: var(--navy-900);
    font-size: 20px;
}
.icon-btn {
    width: 36px;
    height: 36px;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    background: white;
    color: var(--navy-900);
    cursor: pointer;
    font-size: 22px;
    line-height: 1;
}

.news-list { display: grid; gap: 18px; }
.news-editor {
    display: grid;
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 18px;
    padding: 18px;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    background: var(--gray-50);
}
.news-cover {
    width: 100%;
    aspect-ratio: 4 / 3;
    background: var(--gray-100) center/cover no-repeat;
    border-radius: 8px;
    border: 1px solid var(--gray-200);
}
.news-fields textarea { min-height: 76px; }
.row-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
.pill {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    padding: 4px 10px;
    border: 1px solid var(--blue-200, #b8cdf3);
    border-radius: 999px;
    color: var(--blue-500);
    background: var(--blue-50, #eef4ff);
    font-size: 12px;
    font-weight: 700;
}

.log-list { display: grid; gap: 10px; margin-top: 14px; }
.log-list.compact { margin-top: 16px; }
.log-line {
    border-left: 3px solid var(--blue-500);
    background: var(--gray-50);
    padding: 12px 14px;
    border-radius: 0 8px 8px 0;
}
.log-line div {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: baseline;
}
.log-line strong {
    color: var(--navy-900);
    font-size: 14px;
}
.log-line span,
.log-line p,
.log-line time {
    color: var(--gray-500);
    font-size: 12px;
}
.log-line p { margin: 4px 0; }

.toast {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 1100;
    max-width: 360px;
    padding: 12px 16px;
    border-radius: 8px;
    background: var(--navy-900);
    color: white;
    box-shadow: var(--shadow-lg, 0 12px 48px rgba(0,0,0,0.12));
    font-size: 14px;
}
.toast.error { background: #991b1b; }

/* 占位:开发中提示 */
.placeholder-note {
    background: rgba(212, 168, 83, 0.1);
    border-left: 4px solid var(--gold);
    padding: 16px 20px;
    border-radius: 0 8px 8px 0;
    margin: 24px 0;
    font-size: 14px;
    color: var(--gray-700);
}
.placeholder-note strong { color: var(--gold); }

@media (max-width: 860px) {
    .admin-shell { display: block; }
    .sidebar { width: 100%; padding: 22px 20px; }
    .sidebar-nav { display: flex; flex-wrap: wrap; gap: 6px; }
    .sidebar-nav a { margin-bottom: 0; }
    .admin-main { padding: 28px 20px; }
    .status-grid,
    .form-row.two,
    .news-editor { grid-template-columns: 1fr; }
}