/* ── Design Tokens (Aligned with sathishkannan.com) ── */
:root {
    --bg:           #f0f2f5;
    --bg-card:      #ffffff;
    --bg-nav:       #ffffff;
    --border:       #e8ecf0;
    --border-mid:   #d0d7e0;
    --ink:          #1a202c;
    --ink-soft:     #4a5568;
    --ink-muted:    #a0aec0;
    --accent:       #2d6a4f;
    --accent-lt:    #d8f3dc;
    --accent-mid:   #40916c;
    --accent-hover: #1b4332;
    --red:          #e53e3e;
    --red-lt:       #fff5f5;
    --amber:        #d97706;
    --amber-lt:     #fffbeb;
    --blue:         #3182ce;
    --blue-lt:      #ebf8ff;
    --shadow-sm:    0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md:    0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.04);
    --shadow-lg:    0 10px 15px rgba(0,0,0,0.07), 0 4px 6px rgba(0,0,0,0.04);
    --radius:       8px;
    --radius-sm:    4px;
    --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Base Reset & Typography ── */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background: var(--bg);
    color: var(--ink);
    font-family: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
    font-weight: 400;
    line-height: 1.7;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6, .serif-font {
    font-family: 'IBM Plex Serif', Georgia, serif;
    font-weight: 500;
    color: var(--ink);
}

p {
    color: var(--ink-soft);
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: var(--transition-fast);
}
a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

code, pre, .mono {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.86em;
    background: #f7fafc;
    color: var(--ink);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    border: 1px solid var(--border);
}

/* ── Header ── */
header.site-header {
    background: var(--bg-nav);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 14px 0;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 15px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.site-logo-mark {
    width: 36px;
    height: 36px;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.site-logo-mark span {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.8rem;
    font-weight: 600;
    color: #ffffff;
    letter-spacing: -0.02em;
}

.site-name {
    font-family: 'IBM Plex Sans', sans-serif;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: 0.01em;
    line-height: 1.2;
}

.subtitle {
    font-size: 0.8rem;
    color: var(--ink-soft);
    display: block;
}

/* ── Navigation Links (Nav Pills) ── */
.main-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.nav-link {
    color: var(--ink-soft);
    background-color: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius);
    padding: 6px 14px;
    font-family: 'IBM Plex Sans', sans-serif;
    font-weight: 400;
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--ink);
    background-color: rgba(0, 0, 0, 0.04);
    text-decoration: none;
}

.nav-link.active {
    color: var(--accent);
    background-color: var(--accent-lt);
    border-color: var(--accent-mid);
    font-weight: 500;
}

/* ── Main Container ── */
.main-content {
    padding: 30px 0 60px 0;
}

.content-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ── Cards & Panels ── */
.glass-panel, .radar-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    margin-bottom: 20px;
}

.section-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.glass-panel:hover, .section-card:hover, .radar-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-mid);
}

/* ── Badges & Indicators ── */
.badge, .pill {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 500;
    font-family: 'IBM Plex Mono', monospace;
}

.badge-green, .pill.green, .provider-badge {
    background-color: var(--accent-lt);
    color: var(--accent);
    border: 1px solid var(--accent-mid);
}

.badge-amber, .pill.amber {
    background-color: var(--amber-lt);
    color: var(--amber);
    border: 1px solid rgba(217, 119, 6, 0.3);
}

.badge-red, .pill.red {
    background-color: var(--red-lt);
    color: var(--red);
    border: 1px solid rgba(229, 62, 62, 0.3);
}

.badge-category {
    background-color: #f7fafc;
    color: var(--ink-soft);
    font-size: 0.725rem;
    font-family: 'IBM Plex Mono', monospace;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.severity-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.725rem;
    font-weight: 600;
    font-family: 'IBM Plex Mono', monospace;
    text-transform: uppercase;
}

.severity-badge.critical {
    background-color: var(--red-lt);
    color: var(--red);
    border: 1px solid rgba(229, 62, 62, 0.3);
}

.severity-badge.major {
    background-color: var(--amber-lt);
    color: var(--amber);
    border: 1px solid rgba(217, 119, 6, 0.3);
}

.severity-badge.minor {
    background-color: #f7fafc;
    color: var(--ink-soft);
    border: 1px solid var(--border);
}

/* ── Form Controls & Filters ── */
.form-control, .form-select {
    background-color: var(--bg-card);
    border: 1px solid var(--border-mid);
    color: var(--ink);
    border-radius: var(--radius);
    padding: 8px 14px;
    font-family: 'IBM Plex Sans', sans-serif;
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.form-control:focus, .form-select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(45, 106, 79, 0.15);
    outline: none;
}

.btn-filter {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    border-radius: var(--radius);
    font-family: 'IBM Plex Sans', sans-serif;
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--ink-soft);
    background-color: var(--bg-card);
    border: 1px solid var(--border-mid);
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-filter:hover, .btn-filter.active {
    background-color: var(--accent);
    border-color: var(--accent);
    color: #ffffff;
}

/* ── Tables ── */
.custom-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    margin-bottom: 20px;
}

.custom-table th {
    background: #fafbfc;
    color: var(--ink-soft);
    font-family: 'IBM Plex Sans', sans-serif;
    font-weight: 500;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    text-align: left;
}

.custom-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    color: var(--ink);
    font-size: 0.9rem;
}

.custom-table tr:last-child td {
    border-bottom: none;
}

.custom-table tr:hover td {
    background-color: #fafbfc;
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius);
    font-family: 'IBM Plex Sans', sans-serif;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--accent);
    color: #ffffff;
    border-color: var(--accent-mid);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    color: #ffffff;
    text-decoration: none;
}

.btn-outline-secondary {
    background-color: var(--bg-card);
    border-color: var(--border-mid);
    color: var(--ink-soft);
}

.btn-outline-secondary:hover {
    background-color: var(--accent);
    border-color: var(--accent);
    color: #ffffff !important;
    text-decoration: none;
}

/* ── Footer ── */
footer.site-footer {
    background: var(--bg-nav);
    border-top: 1px solid var(--border);
    padding: 30px 0;
    margin-top: 40px;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 15px;
}

.footer-brand {
    font-size: 0.95rem;
    color: var(--ink);
}

.footer-copyright {
    font-size: 0.8rem;
    color: var(--ink-muted);
}

.pulse-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #10b981;
    margin-right: 6px;
}

.uptime-badge { font-size:0.85rem; font-weight:600; padding:2px 8px; border-radius:4px; }
.uptime-badge.green { color:#16A34A; background:#F0FDF4; }
.uptime-badge.amber { color:#D97706; background:#FFFBEB; }
.uptime-badge.red   { color:#DC2626; background:#FEF2F2; }