:root {
    --navy: #10243f;
    --line: #dbe3ef;
    --bg: #f4f6f9;
    --card: #fff;
    --text: #172033;
}

body {
    background: var(--bg);
    color: var(--text);
}

.app-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 260px 1fr;
}

.sidebar {
    background: var(--navy);
    color: #fff;
    padding: 22px 16px;
}

.brand {
    font-weight: 800;
    font-size: 1.15rem;
    margin-bottom: 24px;
}

.sidebar .nav-link {
    color: rgba(255,255,255,.78);
    border-radius: 8px;
    margin-bottom: 4px;
}

.sidebar .nav-link.active,
.sidebar .nav-link:hover {
    color: #fff;
    background: rgba(255,255,255,.12);
}

.content {
    padding: 28px;
    max-width: 1480px;
    width: 100%;
}

h1 {
    font-size: 1.8rem;
    margin-bottom: 18px;
}

h2 {
    font-size: 1.15rem;
    margin-bottom: 14px;
}

.panel,
.metric,
.auth-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 18px;
    margin-bottom: 18px;
    box-shadow: 0 8px 22px rgba(16,36,63,.05);
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(150px, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}

.metric span {
    display: block;
    color: #5f6e82;
    font-size: .9rem;
}

.metric strong {
    display: block;
    font-size: 2rem;
    margin-top: 6px;
}

.auth-wrap {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 20px;
}

.auth-card {
    width: min(420px, 100%);
}

.actions {
    white-space: nowrap;
}

.actions form,
.template-row form {
    display: inline-block;
}

.template-row {
    display: grid;
    grid-template-columns: 160px 1fr auto auto;
    gap: 10px;
    align-items: center;
    padding: 12px 0;
    border-top: 1px solid var(--line);
}

.template-row code {
    white-space: normal;
}

.action-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.copy-notice {
    position: fixed;
    right: 18px;
    bottom: 18px;
    z-index: 2000;
    max-width: min(360px, calc(100vw - 36px));
    padding: 12px 14px;
    border-radius: 8px;
    color: #fff;
    background: #176b45;
    box-shadow: 0 12px 28px rgba(16,36,63,.22);
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
    transition: opacity .18s ease, transform .18s ease;
}

.copy-notice[data-type="danger"] {
    background: #b42318;
}

.copy-notice.show {
    opacity: 1;
    transform: translateY(0);
}

pre {
    background: #f7f9fc;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 14px;
    white-space: pre-wrap;
}

.prompt-preview {
    min-height: 360px;
    margin-bottom: 14px;
    white-space: pre;
}

@media (max-width: 900px) {
    .app-shell {
        grid-template-columns: 1fr;
    }
    .sidebar {
        position: static;
    }
    .sidebar .nav {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 4px;
    }
    .content {
        padding: 16px;
    }
    .metric-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .template-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    .metric-grid,
    .sidebar .nav {
        grid-template-columns: 1fr;
    }
}