/* ── base.css ── Reset and global tokens ── */

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: rgba(37, 99, 235, 0.15);
    --success: #16a34a;
    --success-dark: #15803d;
    --success-bg: #dcfce7;
    --danger: #dc2626;
    --danger-dark: #b91c1c;
    --danger-bg: #fef2f2;
    --warning: #d97706;
    --info: #0284c7;
    --info-bg: #e0f2fe;
    --bg: #f1f5f9;
    --card-bg: #ffffff;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
    --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* ── Navigation ── */

.nav {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-inner {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 16px;
    display: flex;
    align-items: center;
    height: 56px;
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    margin-right: auto;
}

.nav-brand:hover {
    text-decoration: none;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 4px;
}

.nav-links a {
    display: block;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-muted);
    transition: background 0.2s, color 0.2s;
}

.nav-links a:hover {
    background: var(--bg);
    color: var(--text);
    text-decoration: none;
}

.nav-links a.active {
    background: var(--primary-light);
    color: var(--primary);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--text);
}

/* ── Status bar ── */

.status-bar {
    padding: 10px 16px;
    text-align: center;
    font-weight: 600;
    font-size: 0.9rem;
    transition: background 0.3s, color 0.3s;
}

.status-bar.active   { background: var(--success-bg); color: var(--success); }
.status-bar.inactive { background: var(--danger-bg);  color: var(--danger);  }
.status-bar.loading  { background: var(--info-bg);    color: var(--info);    }

/* ── Container ── */

.container {
    max-width: 760px;
    margin: 0 auto;
    padding: 24px 16px;
    flex: 1;
}

/* ── Footer ── */

.footer {
    text-align: center;
    padding: 20px 16px;
    font-size: 0.8rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
}