:root {
    --bg: #f4f8f7;
    --panel: #ffffff;
    --ink: #16231f;
    --muted: #65736f;
    --line: #dce7e3;
    --accent: #0f766e;
    --accent-2: #3454d1;
    --sidebar: #12201d;
}

* { box-sizing: border-box; }
body {
    margin: 0;
    color: var(--ink);
    background: var(--bg);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    letter-spacing: 0;
}

a { color: var(--accent); }
.app-shell { display: flex; min-height: 100vh; }
.app-sidebar {
    position: sticky;
    top: 0;
    width: 260px;
    height: 100vh;
    padding: 18px;
    background: var(--sidebar);
    color: #fff;
}
.brand, .auth-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: inherit;
    text-decoration: none;
}
.brand-mark {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 8px;
    color: #fff;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    font-weight: 800;
}
.brand small, .auth-brand small { display: block; color: #b3c5c0; }
.nav-list { display: grid; gap: 6px; margin-top: 28px; }
.nav-list a {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 42px;
    padding: 10px 12px;
    border-radius: 8px;
    color: #d8e6e2;
    text-decoration: none;
}
.nav-list a:hover { background: rgba(255,255,255,.08); color: #fff; }
.nav-list svg, .btn svg, .status-row svg, .backup-list svg, .page-row svg { width: 18px; height: 18px; }
.app-main { flex: 1; min-width: 0; }
.app-topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 82px;
    padding: 18px 28px;
    border-bottom: 1px solid var(--line);
    background: rgba(244, 248, 247, .92);
    backdrop-filter: blur(14px);
}
.app-topbar h1 { margin: 0; font-size: 1.45rem; }
.section-kicker {
    display: inline-block;
    margin-bottom: 4px;
    color: var(--accent);
    font-size: .75rem;
    font-weight: 700;
    text-transform: uppercase;
}
.content-area { padding: 28px; }
.panel-card, .stat-card {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
    box-shadow: 0 12px 30px rgba(22, 35, 31, .05);
}
.panel-card { padding: 22px; }
.panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}
.panel-head h2 { margin: 0; font-size: 1.1rem; }
.stat-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 18px;
}
.stat-card { padding: 20px; }
.stat-card span, .stat-card small { color: var(--muted); }
.stat-card strong { display: block; margin: 8px 0; font-size: 2rem; }
.dashboard-grid, .two-column, .editor-layout { display: grid; gap: 18px; }
.two-column { grid-template-columns: minmax(280px, 380px) minmax(0, 1fr); }
.editor-layout { grid-template-columns: minmax(320px, 560px) minmax(0, 1fr); }
.btn-icon-text, .btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.btn-icon { width: 34px; height: 34px; padding: 0; }
.table-open { overflow: visible; }
.code-area { font-family: "Cascadia Mono", Consolas, monospace; }
.api-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}
.page-list { display: grid; gap: 8px; }
.page-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    min-height: 58px;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    text-align: left;
}
.page-row small { display: block; color: var(--muted); }
.browser-preview {
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
}
.browser-bar {
    display: flex;
    gap: 6px;
    padding: 10px;
    background: #eaf3f0;
}
.browser-bar span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #8ea6a0;
}
.browser-preview iframe { width: 100%; height: 390px; border: 0; }
.backup-list { display: grid; gap: 10px; }
.backup-list span {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid var(--line);
}
.toast-stack {
    position: fixed;
    top: 92px;
    right: 24px;
    z-index: 1080;
    width: min(380px, calc(100vw - 32px));
}

.auth-body {
    min-height: 100vh;
    background: var(--bg);
}
.auth-wrap {
    display: grid;
    min-height: 100vh;
    place-items: center;
    padding: 24px;
}
.auth-panel {
    width: min(980px, 100%);
    padding: 22px;
}
.login-grid {
    display: grid;
    grid-template-columns: 1fr minmax(320px, 420px);
    gap: 22px;
    align-items: stretch;
    margin-top: 22px;
}
.install-grid {
    display: grid;
    grid-template-columns: minmax(340px, 1fr) minmax(420px, 560px);
    gap: 22px;
    align-items: start;
    margin-top: 22px;
}
.install-card { max-height: none; }
.install-status {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
    margin: 24px 0 14px;
}
.install-status div {
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
}
.install-status strong, .install-status span { display: block; }
.install-status span { color: var(--muted); }
.install-status .ok { color: #15803d; }
.install-status .warn { color: #b45309; }
.install-note {
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    color: var(--muted);
}
.install-list {
    display: grid;
    gap: 9px;
    margin: 14px 0 0;
    padding: 0;
    list-style: none;
}
.install-list li {
    display: flex;
    gap: 9px;
    align-items: center;
}
.install-list svg { width: 18px; height: 18px; color: var(--accent-2); }
.db-switch {
    display: flex;
    gap: 10px;
}
.db-switch label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 11px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
}
.db-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.db-check { grid-column: 1 / -1; }
.login-copy, .login-card {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255,255,255,.86);
    box-shadow: 0 18px 45px rgba(22, 35, 31, .09);
}
.login-copy { padding: 38px; }
.login-copy h1 { max-width: 520px; margin-bottom: 12px; font-size: 2.45rem; }
.login-copy p { max-width: 520px; color: var(--muted); }
.login-card { padding: 28px; }
.login-card h2 { margin: 0; font-size: 1.45rem; }
.status-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.status-row span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    color: var(--muted);
}

@media (max-width: 980px) {
    .app-shell { display: block; }
    .app-sidebar {
        position: relative;
        width: 100%;
        height: auto;
    }
    .nav-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .two-column, .editor-layout, .login-grid, .install-grid, .api-grid { grid-template-columns: 1fr; }
    .stat-grid { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
    .content-area, .app-topbar { padding: 18px; }
    .app-topbar { align-items: flex-start; flex-direction: column; }
    .panel-head { align-items: flex-start; flex-direction: column; }
    .nav-list { grid-template-columns: 1fr; }
    .login-copy { padding: 24px; }
    .login-copy h1 { font-size: 2rem; }
    .install-status, .db-grid { grid-template-columns: 1fr; }
}