:root {
    --bg-0: #070b14;
    --bg-1: #0c1220;
    --bg-2: #111827;
    --bg-3: #1a2436;
    --border: #1e3a5f;
    --border-hover: #2d5a8a;
    --text-1: #e2e8f0;
    --text-2: #94a3b8;
    --text-3: #4a6080;
    --accent: #38bdf8;
    --accent-dim: rgba(56, 189, 248, 0.1);
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --success-dim: rgba(34, 197, 94, 0.12);
    --danger-dim: rgba(239, 68, 68, 0.12);
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --radius: 6px;
}

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

body {
    background: var(--bg-0);
    color: var(--text-1);
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
    width: 100%;
}

/* ── Keyframes ── */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes livePulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
    60%      { box-shadow: 0 0 0 5px rgba(34, 197, 94, 0); }
}

@keyframes shieldGlow {
    0%, 100% { filter: drop-shadow(0 0 2px rgba(56, 189, 248, 0.3)); }
    50%      { filter: drop-shadow(0 0 6px rgba(56, 189, 248, 0.6)); }
}

@keyframes cursorBlink {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0; }
}

/* ── Header ── */
.site-header {
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    background: var(--bg-1);
}

.site-header .container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    font-family: var(--font-mono);
    font-size: 1.15rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--text-1);
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    animation: shieldGlow 3s ease-in-out infinite;
    flex-shrink: 0;
}

.logo-text { letter-spacing: -0.01em; }

/* ── Trust bar ── */
.trust-bar {
    background: var(--bg-0);
    border-bottom: 1px solid var(--border);
    padding: 0.45rem 0;
}

.trust-bar .container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.trust-item {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-3);
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.trust-item::before {
    content: '✓';
    color: var(--success);
    font-size: 0.6rem;
}

.trust-sep {
    color: var(--border);
    font-size: 0.65rem;
}

/* ── Main ── */
main {
    flex: 1;
    padding: 2.5rem 1.5rem;
    animation: fadeUp 0.4s ease-out both;
}

/* ── Site intro ── */
.site-intro {
    padding: 2.25rem 0 1.75rem;
}

.site-tagline {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-1);
    letter-spacing: -0.01em;
    margin-bottom: 0.3rem;
}

.site-sub {
    font-size: 0.82rem;
    color: var(--text-3);
    letter-spacing: 0.02em;
}

/* ── Card metadata ── */
.card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0 0.5rem;
    margin-top: 0.875rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
}

.card-meta span {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    color: #6b82a0;
    letter-spacing: 0.04em;
}

.card-meta span + span::before {
    content: '·';
    margin-right: 0.5rem;
    color: var(--border);
}

/* ── Tools Grid ── */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.tool-card {
    background: var(--bg-1);
    padding: 1.75rem;
    text-decoration: none;
    color: inherit;
    display: block;
    transition: background 0.2s, transform 0.22s cubic-bezier(0.2, 0, 0, 1), box-shadow 0.22s, border-color 0.2s;
    will-change: transform;
    position: relative;
    overflow: hidden;
}

/* Accent top bar on LIVE cards */
.tool-card:not(.tool-card--soon)::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: rgba(56, 189, 248, 0.18);
    transition: background 0.2s;
}

.tool-card:not(.tool-card--soon):hover::before {
    background: var(--accent);
}

.tool-card:hover:not(.tool-card--soon) {
    background: var(--bg-2);
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(56, 189, 248, 0.08), 0 2px 8px rgba(0,0,0,0.3);
    z-index: 1;
}

.tool-card:hover:not(.tool-card--soon) h2 {
    color: var(--accent);
}

.tool-card--soon {
    opacity: 0.38;
    cursor: default;
}

.tool-header {
    margin-bottom: 1rem;
}

.tool-tag {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    padding: 0.2rem 0.55rem;
    border-radius: 3px;
    background: var(--success-dim);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.2);
    animation: livePulse 2.5s ease-in-out infinite;
    display: inline-block;
}

.tool-tag--soon {
    background: transparent;
    color: var(--text-3);
    border-color: var(--border);
    animation: none;
}

.tool-card h2 {
    font-family: var(--font-mono);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-1);
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
    transition: color 0.2s;
}

.tool-card p {
    font-size: 0.85rem;
    color: var(--text-2);
    opacity: 0.75;
    line-height: 1.5;
}

/* ── Tool hero (individual tool pages) ── */
.tool-hero {
    margin-bottom: 2rem;
    animation: fadeUp 0.35s ease-out both;
}

.tool-hero h1 {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
    letter-spacing: -0.02em;
}

.accent { color: var(--accent); }

.tool-desc {
    color: var(--text-2);
    font-size: 0.9rem;
}

/* ── Scan form ── */
.scan-form {
    margin-bottom: 2rem;
    animation: fadeUp 0.4s ease-out 0.05s both;
}

.input-group {
    display: flex;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--bg-1);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.input-group:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.08);
}

.url-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    padding: 0.875rem 1rem;
    color: var(--text-1);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    min-width: 0;
}

.url-input::placeholder { color: var(--text-3); }

.scan-btn {
    background: var(--accent);
    color: #000;
    border: none;
    padding: 0.875rem 1.75rem;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    cursor: pointer;
    transition: opacity 0.15s, background 0.15s;
    flex-shrink: 0;
}

.scan-btn:hover { opacity: 0.88; }
.scan-btn:disabled { opacity: 0.45; cursor: not-allowed; }

/* ── Results ── */
.results {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    animation: fadeUp 0.35s ease-out both;
}

.results.hidden { display: none; }

/* ── Grade panel ── */
.grade-panel {
    background: var(--bg-1);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.75rem 2rem;
    display: flex;
    align-items: center;
    gap: 2rem;
}

.grade-letter {
    font-family: var(--font-mono);
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1;
    min-width: 4.5rem;
    text-align: center;
    letter-spacing: -0.03em;
}

.grade-aplus, .grade-a { color: var(--success); }
.grade-b  { color: #84cc16; }
.grade-c  { color: var(--warning); }
.grade-d  { color: #f97316; }
.grade-f  { color: var(--danger); }

.grade-info { flex: 1; min-width: 0; }

.grade-url {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-3);
    margin-bottom: 0.2rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.grade-score {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-1);
    line-height: 1.2;
}

.grade-score span {
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--text-2);
}

.grade-meta {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-2);
    margin-top: 0.3rem;
}

/* ── Headers list ── */
.headers-list {
    display: flex;
    flex-direction: column;
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.header-row {
    padding: 1rem 1.25rem;
    display: grid;
    grid-template-columns: 10px 1fr auto;
    gap: 0.875rem;
    align-items: start;
}

.header-status-col {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.3rem;
}

.pts-deducted {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    color: var(--danger);
    letter-spacing: 0.04em;
}

.header-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-top: 5px;
    flex-shrink: 0;
}

.header-dot.present       { background: var(--success); box-shadow: 0 0 5px var(--success); }
.header-dot.missing       { background: var(--danger);  box-shadow: 0 0 5px var(--danger); }
.header-dot.warn          { background: var(--warning); box-shadow: 0 0 5px var(--warning); }
.header-dot.misconfigured { background: #f97316;        box-shadow: 0 0 5px #f97316; }

.header-name {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-1);
    margin-bottom: 0.2rem;
}

.header-value {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--accent);
    word-break: break-all;
    margin-bottom: 0.25rem;
    line-height: 1.5;
}

.header-desc {
    font-size: 0.78rem;
    color: var(--text-2);
    opacity: 0.8;
    line-height: 1.45;
}

.header-badge {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 0.18rem 0.45rem;
    border-radius: 3px;
    white-space: nowrap;
    margin-top: 2px;
}

.header-badge.present {
    background: var(--success-dim);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.header-badge.missing {
    background: var(--danger-dim);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.header-badge.misconfigured {
    background: rgba(249,115,22,0.12);
    color: #f97316;
    border: 1px solid rgba(249,115,22,0.25);
}

.header-badge.legacy-present {
    background: rgba(100,116,139,0.1);
    color: #64748b;
    border: 1px solid rgba(100,116,139,0.2);
}

/* ── Raw headers ── */
.raw-section {
    background: var(--bg-1);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.raw-toggle {
    width: 100%;
    background: none;
    border: none;
    color: var(--text-2);
    padding: 0.875rem 1.25rem;
    text-align: left;
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.15s;
}

.raw-toggle:hover { color: var(--text-1); }

.raw-content {
    border-top: 1px solid var(--border);
    padding: 1rem 1.25rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-2);
    line-height: 1.9;
    word-break: break-all;
    max-height: 280px;
    overflow-y: auto;
}

.raw-content.hidden { display: none; }

.raw-line { display: flex; gap: 0.5rem; }
.raw-key  { color: var(--accent); flex-shrink: 0; }

/* ── Loading / Error ── */
.loading {
    padding: 2.5rem;
    text-align: center;
    color: var(--text-2);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.loading::after {
    content: '';
    display: inline-block;
    width: 0.6em;
    height: 1em;
    background: var(--accent);
    margin-left: 4px;
    vertical-align: text-bottom;
    animation: cursorBlink 0.8s step-end infinite;
}

.error-msg {
    background: var(--danger-dim);
    border: 1px solid rgba(239, 68, 68, 0.25);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    color: var(--danger);
    font-family: var(--font-mono);
    font-size: 0.82rem;
}

/* ── Footer ── */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 1.25rem 0;
    background: var(--bg-1);
    margin-top: auto;
}

.site-footer p {
    font-size: 0.75rem;
    color: var(--text-3);
    text-align: center;
}

.footer-link {
    color: var(--text-3);
    text-decoration: none;
    border-bottom: 1px solid var(--border);
    transition: color 0.15s, border-color 0.15s;
}

.footer-link:hover {
    color: var(--accent);
    border-color: var(--accent);
}

/* ── Responsive ── */
@media (max-width: 600px) {
    .tools-grid { grid-template-columns: 1fr; }
    .grade-panel { flex-direction: column; align-items: flex-start; gap: 1rem; }
    .grade-letter { font-size: 2.8rem; min-width: auto; }
    .trust-bar .container { gap: 0.5rem; }
}