/* Agent Platform – Stylesheet */

:root {
    --color-bg: #f7f8fa;
    --color-surface: #ffffff;
    --color-border: #e1e4e8;
    --color-text: #1f2328;
    --color-text-muted: #57606a;
    --color-primary: #0969da;
    --color-primary-hover: #0860c7;
    --color-success: #1a7f37;
    --color-danger: #cf222e;
    --color-warning: #bf8700;
    --radius: 6px;
    --shadow: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-lg: 0 4px 12px rgba(0,0,0,0.08);
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

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

html, body { height: 100%; }
body {
    font-family: var(--font);
    font-size: 14px;
    line-height: 1.5;
    color: var(--color-text);
    background: var(--color-bg);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* === Navbar === */
.navbar {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 12px 24px;
    display: flex;
    align-items: center;
    gap: 24px;
    box-shadow: var(--shadow);
}
.nav-brand { font-weight: 700; font-size: 16px; color: var(--color-primary); }
.nav-links { display: flex; gap: 16px; flex: 1; }
.nav-link {
    color: var(--color-text-muted);
    text-decoration: none;
    padding: 6px 12px;
    border-radius: var(--radius);
    transition: background 0.15s;
}
.nav-link:hover { background: var(--color-bg); color: var(--color-text); }
.nav-user { color: var(--color-text-muted); font-size: 13px; }

/* === Container === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
    width: 100%;
    flex: 1;
}

/* === Page Header === */
.page-header { margin-bottom: 24px; }
.page-header h1 { font-size: 28px; font-weight: 600; margin-bottom: 4px; }
.subtitle { color: var(--color-text-muted); }

/* === Card === */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 16px;
    box-shadow: var(--shadow);
}
.card h2 { font-size: 18px; font-weight: 600; margin-bottom: 12px; }

/* === Table === */
.table { width: 100%; border-collapse: collapse; }
.table th, .table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}
.table th { background: var(--color-bg); font-weight: 600; font-size: 12px; text-transform: uppercase; color: var(--color-text-muted); }
.table tbody tr:hover { background: var(--color-bg); }

/* === Form === */
.form { display: flex; flex-direction: column; gap: 12px; }
.form-row { display: flex; gap: 12px; }
.form-row .form-group { flex: 1; }
.form-group { display: flex; flex-direction: column; gap: 4px; }
.form-group label { font-size: 13px; font-weight: 500; color: var(--color-text-muted); }
input, select, textarea {
    font-family: inherit;
    font-size: 14px;
    padding: 8px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-surface);
    color: var(--color-text);
    width: 100%;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(9,105,218,0.15);
}
textarea { font-family: inherit; resize: vertical; }

/* === Button === */
.btn {
    display: inline-block;
    padding: 8px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-surface);
    color: var(--color-text);
    text-decoration: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.15s;
}
.btn:hover { background: var(--color-bg); border-color: var(--color-text-muted); }
.btn-primary {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}
.btn-primary:hover { background: var(--color-primary-hover); }
.btn-danger {
    background: var(--color-surface);
    color: var(--color-danger);
    border-color: var(--color-border);
}
.btn-danger:hover { background: var(--color-danger); color: white; border-color: var(--color-danger); }
.btn-sm { padding: 4px 10px; font-size: 12px; }

/* === Badge === */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    background: var(--color-bg);
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
}
.badge-green { background: #dafbe1; color: var(--color-success); border-color: #1a7f3730; }
.badge-red { background: #ffebe9; color: var(--color-danger); border-color: #cf222e30; }

/* === Empty State === */
.empty-state {
    text-align: center;
    padding: 32px;
    color: var(--color-text-muted);
}

/* === Code === */
code {
    font-family: var(--mono);
    font-size: 12.5px;
    background: var(--color-bg);
    padding: 2px 6px;
    border-radius: 4px;
}
pre {
    background: var(--color-bg);
    padding: 12px;
    border-radius: var(--radius);
    overflow-x: auto;
    font-size: 12px;
    margin-top: 8px;
}

/* === Chat === */
.chat-container { min-height: 400px; }
.messages { display: flex; flex-direction: column; gap: 12px; }
.message {
    padding: 10px 14px;
    border-radius: var(--radius);
    max-width: 80%;
}
.message-user {
    background: var(--color-primary);
    color: white;
    align-self: flex-end;
}
.message-assistant {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    align-self: flex-start;
}
.message-tool {
    background: #fff8c5;
    color: var(--color-warning);
    border: 1px solid #d4a72c30;
    align-self: center;
    font-family: var(--mono);
    font-size: 12px;
    max-width: 90%;
}
.message-role {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 4px;
    opacity: 0.7;
}
.message-content { white-space: pre-wrap; word-wrap: break-word; }

/* === Tools Grid === */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 12px;
}
.tool-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 12px;
}
.tool-card h3 { margin-bottom: 6px; font-size: 14px; }
.tool-card p { color: var(--color-text-muted); font-size: 13px; }

/* === Footer === */
.footer {
    text-align: center;
    padding: 16px;
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-border);
    background: var(--color-surface);
}

/* === Responsive === */
@media (max-width: 640px) {
    .navbar { flex-wrap: wrap; gap: 12px; padding: 12px; }
    .nav-links { order: 3; width: 100%; }
    .container { padding: 12px; }
    .form-row { flex-direction: column; }
    .message { max-width: 95%; }
}