/* ==========================================================================
   Mail Ward — SPF / DKIM / DMARC guide + tools
   Themeable, fully local. Palette shared with Subnet Studio & Markdown Studio.
   ========================================================================== */

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

:root {
    --font-ui: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
    --radius: 16px;
    --radius-sm: 10px;
    --speed: .25s;
    --ease: cubic-bezier(.22, 1, .36, 1);
    --warn: #f59e0b;
    --bad: #f43f5e;
}

/* --- Themes --------------------------------------------------------------- */
[data-theme="aurora"] {
    --bg-0: #06030f; --bg-1: #0d0726; --surface: rgba(20,12,45,.72); --surface-2: rgba(38,24,78,.6);
    --border: rgba(168,85,247,.28); --border-strong: rgba(168,85,247,.5);
    --text: #ece9ff; --text-muted: #a99fce;
    --accent: #a855f7; --accent-2: #22d3ee; --accent-3: #ec4899;
    --code-bg: rgba(10,6,24,.75); --glow: rgba(168,85,247,.35);
    --ok: #34d399; --b1: #a855f7; --b2: #22d3ee; --b3: #ec4899; color-scheme: dark;
}
[data-theme="midnight"] {
    --bg-0: #05070f; --bg-1: #0a1020; --surface: rgba(14,22,42,.75); --surface-2: rgba(24,36,66,.6);
    --border: rgba(96,165,250,.25); --border-strong: rgba(96,165,250,.5);
    --text: #e6edff; --text-muted: #8ea3c8;
    --accent: #60a5fa; --accent-2: #38bdf8; --accent-3: #818cf8;
    --code-bg: rgba(6,12,26,.8); --glow: rgba(96,165,250,.3);
    --ok: #34d399; --b1: #3b82f6; --b2: #38bdf8; --b3: #6366f1; color-scheme: dark;
}
[data-theme="solar"] {
    --bg-0: #fdf6e3; --bg-1: #f4ecd6; --surface: rgba(255,252,244,.85); --surface-2: rgba(248,240,222,.8);
    --border: rgba(181,137,0,.28); --border-strong: rgba(181,137,0,.5);
    --text: #4a3f28; --text-muted: #8a784f;
    --accent: #b58900; --accent-2: #cb4b16; --accent-3: #d33682;
    --code-bg: rgba(238,226,200,.7); --glow: rgba(181,137,0,.25);
    --ok: #6c7a00; --b1: #e0b84c; --b2: #cb4b16; --b3: #d33682; color-scheme: light;
}
[data-theme="nord"] {
    --bg-0: #2e3440; --bg-1: #3b4252; --surface: rgba(46,52,64,.82); --surface-2: rgba(67,76,94,.6);
    --border: rgba(136,192,208,.3); --border-strong: rgba(136,192,208,.55);
    --text: #eceff4; --text-muted: #9aa7bd;
    --accent: #88c0d0; --accent-2: #81a1c1; --accent-3: #b48ead;
    --code-bg: rgba(36,41,51,.8); --glow: rgba(136,192,208,.25);
    --ok: #a3be8c; --b1: #5e81ac; --b2: #88c0d0; --b3: #b48ead; color-scheme: dark;
}
[data-theme="dracula"] {
    --bg-0: #191a21; --bg-1: #282a36; --surface: rgba(33,34,44,.85); --surface-2: rgba(68,71,90,.5);
    --border: rgba(189,147,249,.3); --border-strong: rgba(189,147,249,.55);
    --text: #f8f8f2; --text-muted: #a7abbe;
    --accent: #bd93f9; --accent-2: #8be9fd; --accent-3: #ff79c6;
    --code-bg: rgba(20,21,28,.85); --glow: rgba(189,147,249,.3);
    --ok: #50fa7b; --b1: #bd93f9; --b2: #8be9fd; --b3: #ff79c6; color-scheme: dark;
}
[data-theme="rose"] {
    --bg-0: #191724; --bg-1: #1f1d2e; --surface: rgba(25,23,36,.85); --surface-2: rgba(38,35,58,.6);
    --border: rgba(235,188,186,.28); --border-strong: rgba(235,188,186,.5);
    --text: #e0def4; --text-muted: #a8a3c4;
    --accent: #ebbcba; --accent-2: #9ccfd8; --accent-3: #c4a7e7;
    --code-bg: rgba(20,18,30,.85); --glow: rgba(235,188,186,.25);
    --ok: #9ccfd8; --b1: #c4a7e7; --b2: #9ccfd8; --b3: #ebbcba; color-scheme: dark;
}
[data-theme="matrix"] {
    --bg-0: #000; --bg-1: #030f03; --surface: rgba(3,15,3,.85); --surface-2: rgba(8,30,8,.6);
    --border: rgba(0,255,102,.28); --border-strong: rgba(0,255,102,.5);
    --text: #b6ffcb; --text-muted: #4caf6a;
    --accent: #00ff66; --accent-2: #39ff14; --accent-3: #7cff9b;
    --code-bg: rgba(0,10,0,.85); --glow: rgba(0,255,102,.35);
    --ok: #39ff14; --b1: #00ff66; --b2: #008f39; --b3: #39ff14; color-scheme: dark;
}
[data-theme="paper"] {
    --bg-0: #fff; --bg-1: #f5f6f8; --surface: rgba(255,255,255,.92); --surface-2: rgba(240,242,245,.85);
    --border: rgba(20,30,50,.14); --border-strong: rgba(20,30,50,.3);
    --text: #1a2233; --text-muted: #5b6779;
    --accent: #2563eb; --accent-2: #0891b2; --accent-3: #db2777;
    --code-bg: rgba(240,242,246,.9); --glow: rgba(37,99,235,.12);
    --ok: #16a34a; --b1: #93c5fd; --b2: #a5f3fc; --b3: #fbcfe8; color-scheme: light;
}
[data-theme="sunset"] {
    --bg-0: #1a0a1e; --bg-1: #2b0f2e; --surface: rgba(40,14,42,.82); --surface-2: rgba(70,24,60,.6);
    --border: rgba(251,146,60,.3); --border-strong: rgba(251,146,60,.55);
    --text: #ffe8d6; --text-muted: #d3a08c;
    --accent: #fb923c; --accent-2: #f472b6; --accent-3: #fbbf24;
    --code-bg: rgba(26,8,24,.85); --glow: rgba(251,146,60,.3);
    --ok: #4ade80; --b1: #fb923c; --b2: #f472b6; --b3: #fbbf24; color-scheme: dark;
}
[data-theme="cyberpunk"] {
    --bg-0: #0a0a12; --bg-1: #12071e; --surface: rgba(18,7,30,.85); --surface-2: rgba(40,10,60,.6);
    --border: rgba(255,231,0,.3); --border-strong: rgba(255,0,200,.55);
    --text: #f6f6ff; --text-muted: #b39ad6;
    --accent: #ffe600; --accent-2: #00f0ff; --accent-3: #ff00c8;
    --code-bg: rgba(8,4,16,.9); --glow: rgba(255,0,200,.35);
    --ok: #00f0ff; --b1: #ff00c8; --b2: #00f0ff; --b3: #ffe600; color-scheme: dark;
}

/* --- Base ----------------------------------------------------------------- */
html { scroll-behavior: smooth; scroll-padding-top: 118px; }
* { scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent; }
::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: linear-gradient(var(--accent), var(--accent-3));
    border: 3px solid transparent; border-radius: 999px; background-clip: padding-box;
}

body {
    font-family: var(--font-ui); color: var(--text); background: var(--bg-0);
    line-height: 1.65; min-height: 100vh; overflow-x: hidden;
    transition: background var(--speed) var(--ease), color var(--speed) var(--ease);
}

.app-bg { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.blob { position: absolute; width: 46vw; height: 46vw; border-radius: 50%;
    filter: blur(90px); opacity: .38; mix-blend-mode: screen; animation: drift 26s var(--ease) infinite alternate; }
.blob.b1 { background: radial-gradient(circle, var(--b1), transparent 65%); top: -12vw; left: -8vw; }
.blob.b2 { background: radial-gradient(circle, var(--b2), transparent 65%); bottom: -14vw; right: -6vw; animation-delay: -9s; }
.blob.b3 { background: radial-gradient(circle, var(--b3), transparent 65%); top: 40%; left: 55%; animation-delay: -16s; }
@keyframes drift { from { transform: translate(0,0) scale(1); } to { transform: translate(5vw,4vw) scale(1.18); } }
.grid-overlay { position: absolute; inset: 0; opacity: .05;
    background-image: linear-gradient(var(--text) 1px, transparent 1px), linear-gradient(90deg, var(--text) 1px, transparent 1px);
    background-size: 44px 44px;
    -webkit-mask-image: radial-gradient(ellipse at 50% 0%, black, transparent 80%);
    mask-image: radial-gradient(ellipse at 50% 0%, black, transparent 80%); }

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .blob { animation: none; }
    * { transition-duration: .01ms !important; }
}

.sr-only, .skip-link:not(:focus) {
    position: absolute !important; width: 1px; height: 1px; overflow: hidden;
    clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap;
}
.skip-link:focus {
    position: fixed; top: 10px; left: 10px; z-index: 100; padding: 10px 16px;
    background: var(--accent); color: #fff; border-radius: var(--radius-sm);
}

a { color: var(--accent-2); text-decoration-color: color-mix(in srgb, var(--accent-2) 45%, transparent); }
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 2px; border-radius: 6px; }

/* --- Header --------------------------------------------------------------- */
.topbar {
    position: sticky; top: 0; z-index: 30;
    display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
    padding: 11px clamp(12px, 4vw, 40px);
    background: var(--surface); border-bottom: 1px solid var(--border);
    backdrop-filter: blur(18px) saturate(1.4); -webkit-backdrop-filter: blur(18px) saturate(1.4);
}
.brand { display: flex; align-items: center; gap: 11px; text-decoration: none; color: var(--text); }
.brand-mark { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 12px;
    font-size: 20px; background: linear-gradient(135deg, var(--accent), var(--accent-3));
    box-shadow: 0 6px 18px var(--glow); flex: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 16px; letter-spacing: .2px; }
.brand-text small { font-size: 10px; color: var(--text-muted); letter-spacing: 1.6px; text-transform: uppercase; }

.actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.ghost-link, .menu > button {
    font: inherit; font-size: 13.5px; color: var(--text); background: var(--surface-2);
    border: 1px solid var(--border); border-radius: var(--radius-sm);
    padding: 8px 13px; cursor: pointer; display: inline-flex; align-items: center; gap: 7px;
    text-decoration: none; white-space: nowrap;
    transition: transform var(--speed) var(--ease), box-shadow var(--speed) var(--ease), border-color var(--speed) var(--ease);
}
.ghost-link:hover, .menu > button:hover { transform: translateY(-2px); box-shadow: 0 6px 16px var(--glow); border-color: var(--border-strong); color: var(--text); }
.menu { position: relative; }
.menu-list {
    position: absolute; right: 0; top: calc(100% + 8px); min-width: 190px; padding: 6px;
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
    box-shadow: 0 20px 45px rgba(0,0,0,.4); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    z-index: 40; display: flex; flex-direction: column; gap: 2px;
}
.menu-list[hidden] { display: none; }
.menu-list button {
    display: flex; align-items: center; gap: 9px; width: 100%; font: inherit; font-size: 13px;
    color: var(--text); background: transparent; border: none; border-radius: 9px; padding: 8px 11px;
    text-align: left; cursor: pointer;
}
.menu-list button:hover { background: var(--accent); color: #fff; }
.menu-list button[aria-checked="true"] { border: 1px solid var(--border-strong); }
.swatch { width: 14px; height: 14px; border-radius: 4px; flex: none; }

/* --- Section nav ---------------------------------------------------------- */
.tocbar {
    position: sticky; top: 62px; z-index: 25;
    background: color-mix(in srgb, var(--bg-1) 82%, transparent);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
}
.toc-scroll {
    display: flex; gap: 4px; overflow-x: auto; padding: 7px clamp(12px, 4vw, 40px);
    scrollbar-width: none;
}
.toc-scroll::-webkit-scrollbar { display: none; }
.toc-scroll a {
    font-size: 13px; padding: 5px 11px; border-radius: 999px; white-space: nowrap;
    color: var(--text-muted); text-decoration: none; border: 1px solid transparent;
}
.toc-scroll a:hover { color: var(--text); background: var(--surface-2); }
.toc-scroll a.active { color: var(--text); background: var(--surface-2); border-color: var(--border-strong); }

/* --- Layout --------------------------------------------------------------- */
main { width: min(94%, 980px); margin: 0 auto; padding: clamp(22px, 4vw, 44px) 0 60px; }

.hero { text-align: center; margin-bottom: 34px; }
.eyebrow { font-size: 12px; letter-spacing: 2px; text-transform: uppercase; color: var(--text-muted); }
.hero h1 {
    font-size: clamp(2.2rem, 7vw, 3.6rem); font-weight: 800; line-height: 1.05; letter-spacing: -.02em;
    margin: 8px 0 14px;
    background: linear-gradient(120deg, var(--accent), var(--accent-3) 55%, var(--accent-2));
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: var(--accent);
}
.lede { color: var(--text); font-size: clamp(1rem, 2.2vw, 1.12rem); max-width: 66ch; margin: 0 auto; }
.note-inline { color: var(--text-muted); font-size: .88rem; margin-top: 14px; }

.card {
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
    box-shadow: 0 18px 44px rgba(0,0,0,.24); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    padding: clamp(18px, 3.6vw, 32px); margin-bottom: 26px;
    scroll-margin-top: 120px;
}
.card > h2 { font-size: clamp(1.25rem, 3.2vw, 1.5rem); margin-bottom: 8px; display: flex; align-items: center; gap: 10px; line-height: 1.25; }
.card > h2 .ic { font-size: 1.05em; }
.card h3 { font-size: 1.06rem; margin: 26px 0 10px; color: var(--text); }
.card h4 { font-size: .98rem; margin-bottom: 6px; }
.card p + p, .card p + ul, .card p + ol { margin-top: 10px; }
.section-lede { color: var(--text-muted); margin-bottom: 6px; max-width: 78ch; }
.card ul, .card ol { padding-left: 1.25em; }
.card li + li { margin-top: 6px; }

code {
    font-family: var(--font-mono); font-size: .875em; background: var(--code-bg);
    padding: .12em .4em; border-radius: 5px; border: 1px solid var(--border);
    word-break: break-word;
}
.code-block {
    background: var(--code-bg); border: 1px solid var(--border); border-radius: var(--radius-sm);
    padding: 13px 15px; overflow-x: auto; margin: 12px 0; min-width: 0;
}
.code-block code { background: none; border: none; padding: 0; font-size: .84rem; line-height: 1.6; white-space: pre; }
.code-block b { color: var(--accent-2); font-weight: 700; }
code.mini { display: block; margin-top: 10px; font-size: .72rem; padding: 8px 10px; overflow-x: auto; white-space: pre; }

/* --- TL;DR ---------------------------------------------------------------- */
.triple { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr)); margin: 16px 0; }
.triple-item { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 15px; min-width: 0; }
.triple-item h3 { margin: 0 0 8px; font-size: .98rem; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.triple-item p { font-size: .92rem; color: var(--text-muted); }
.triple-item em { color: var(--text); font-style: italic; }

.pill { font-size: .68rem; font-weight: 800; letter-spacing: .8px; padding: 3px 8px; border-radius: 999px; color: #08060f; }
.pill-spf { background: var(--b2); }
.pill-dkim { background: var(--b3); }
.pill-dmarc { background: var(--b1); }
[data-theme="paper"] .pill, [data-theme="solar"] .pill { color: #0b1020; }

/* --- Callouts ------------------------------------------------------------- */
.callout {
    border-left: 4px solid var(--accent); background: var(--surface-2);
    padding: 13px 16px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin: 16px 0;
    font-size: .95rem;
}
.callout-key { border-left-color: var(--accent); }
.callout-warn { border-left-color: var(--warn); }
.callout-info { border-left-color: var(--accent-2); }
.tip { font-size: .92rem; color: var(--text-muted); margin-top: 12px; }
.danger { color: var(--bad); }

/* --- Flow diagram --------------------------------------------------------- */
.flow { display: flex; flex-wrap: wrap; align-items: stretch; gap: 8px; margin: 18px 0 6px; }
.flow-step {
    flex: 1 1 160px; min-width: 0; background: var(--surface-2); border: 1px solid var(--border);
    border-radius: var(--radius-sm); padding: 12px; display: flex; flex-direction: column; gap: 5px;
}
.flow-step strong { font-size: .92rem; }
.flow-step small { font-size: .78rem; color: var(--text-muted); line-height: 1.5; }
.fs-ic { font-size: 1.4rem; }
.flow-check { border-color: var(--border-strong); box-shadow: 0 0 0 1px var(--border-strong) inset; }
.flow-arrow { align-self: center; color: var(--text-muted); font-size: 1.2rem; }
@media (max-width: 720px) { .flow-arrow { display: none; } }

/* --- Tables --------------------------------------------------------------- */
.table-wrap { overflow-x: auto; margin: 14px 0; border: 1px solid var(--border); border-radius: var(--radius-sm); min-width: 0; }
table { border-collapse: collapse; width: 100%; font-size: .89rem; }
th, td { padding: 9px 12px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--border); }
thead th { background: var(--surface-2); font-size: .78rem; text-transform: uppercase; letter-spacing: .8px; color: var(--text-muted); position: sticky; top: 0; }
tbody th[scope="row"] { font-weight: 600; color: var(--text-muted); white-space: nowrap; }
tbody tr:last-child td, tbody tr:last-child th { border-bottom: none; }
tbody tr:hover { background: color-mix(in srgb, var(--accent) 7%, transparent); }
.risk-table td:first-child { font-weight: 600; }

/* --- Lists ---------------------------------------------------------------- */
.deflist { list-style: none; padding-left: 0; }
.deflist li { padding-left: 1.1em; position: relative; font-size: .94rem; }
.deflist li::before { content: '▸'; position: absolute; left: 0; color: var(--accent); }
.rules { padding-left: 1.3em; }
.rules li { font-size: .95rem; }

/* --- Alignment boxes ------------------------------------------------------ */
.align-grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(min(250px, 100%), 1fr)); margin: 14px 0; }
.align-box { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px; background: var(--surface-2); min-width: 0; }
.align-box h4 { margin-bottom: 6px; }
.align-box p { font-size: .9rem; }
.align-box.ok { border-left: 4px solid var(--ok); }
.align-box.bad { border-left: 4px solid var(--bad); }
.mono-note { margin-top: 8px; line-height: 2.1; }
.mono-note code { font-size: .76rem; }

/* --- Buckets -------------------------------------------------------------- */
.bucket-grid { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(min(180px, 100%), 1fr)); margin: 14px 0; }
.bucket { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px; background: var(--surface-2); display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.bucket span { font-size: .84rem; color: var(--text-muted); }
.bucket.b-ok { border-top: 3px solid var(--ok); }
.bucket.b-warn { border-top: 3px solid var(--warn); }
.bucket.b-info { border-top: 3px solid var(--accent-2); }
.bucket.b-bad { border-top: 3px solid var(--bad); }

/* --- Extras grid ---------------------------------------------------------- */
.extras-grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr)); margin-top: 16px; }
.mini-card { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px; min-width: 0; }
.mini-card h3 { margin: 0 0 6px; font-size: 1rem; color: var(--accent); }
.mini-card p { font-size: .89rem; }
.mini-meta { margin-top: 8px; font-size: .8rem !important; color: var(--text-muted); font-style: italic; }

/* --- Steps ---------------------------------------------------------------- */
.steps { list-style: none; padding-left: 0; margin-top: 18px; counter-reset: none; }
.step {
    position: relative; border: 1px solid var(--border); border-radius: var(--radius-sm);
    background: var(--surface-2); padding: 16px 16px 16px 18px; margin-bottom: 14px;
    border-left: 4px solid var(--accent);
}
.step + .step { margin-top: 0; }
.step h3 { margin: 0 0 10px; display: flex; align-items: center; gap: 11px; font-size: 1.06rem; }
.step-n {
    display: grid; place-items: center; width: 30px; height: 30px; flex: none; border-radius: 9px;
    background: linear-gradient(135deg, var(--accent), var(--accent-3)); color: #fff;
    font-weight: 800; font-size: .92rem;
}
.step p, .step li { font-size: .93rem; }
.step-goal { color: var(--accent-2); font-weight: 600; }
.step-risk { margin-top: 10px !important; padding: 10px 12px; background: color-mix(in srgb, var(--bad) 12%, transparent);
    border-radius: var(--radius-sm); border: 1px solid color-mix(in srgb, var(--bad) 30%, transparent); }
.step-note { margin-top: 8px !important; color: var(--text-muted); font-size: .88rem !important; }

/* --- Forms & builder ------------------------------------------------------ */
.builder-grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr)); margin: 14px 0; }
.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field label { font-size: .84rem; color: var(--text-muted); }
.field .hint { font-size: .78rem; opacity: .85; }
input[type="text"], textarea, select {
    font: inherit; font-size: .92rem; color: var(--text); background: var(--code-bg);
    border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px 12px; width: 100%;
    font-family: var(--font-mono);
}
textarea { resize: vertical; min-height: 84px; line-height: 1.5; }
input[type="text"]:focus, textarea:focus { border-color: var(--border-strong); outline: none; box-shadow: 0 0 0 3px var(--glow); }

.fs { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px; margin: 14px 0; min-inline-size: 0; }
.fs legend { padding: 0 8px; font-size: .84rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }

.chip-grid { display: grid; gap: 8px; grid-template-columns: repeat(auto-fill, minmax(min(210px, 100%), 1fr)); }
.chip {
    display: flex; align-items: flex-start; gap: 9px; padding: 9px 11px; border-radius: var(--radius-sm);
    border: 1px solid var(--border); background: var(--surface-2); cursor: pointer; font-size: .88rem;
    min-width: 0; transition: border-color var(--speed) var(--ease), background var(--speed) var(--ease);
}
.chip:hover { border-color: var(--border-strong); }
.chip input { margin-top: 3px; accent-color: var(--accent); flex: none; }
.chip span { min-width: 0; }
.chip small { display: block; font-size: .74rem; color: var(--text-muted); font-family: var(--font-mono); word-break: break-all; }
.chip:has(input:checked) { border-color: var(--border-strong); background: color-mix(in srgb, var(--accent) 14%, var(--surface-2)); }

.stage-row { display: grid; gap: 8px; grid-template-columns: repeat(auto-fit, minmax(min(190px, 100%), 1fr)); }
.stage {
    font: inherit; text-align: left; cursor: pointer; padding: 11px 13px; border-radius: var(--radius-sm);
    border: 1px solid var(--border); background: var(--surface-2); color: var(--text);
    display: flex; flex-direction: column; gap: 3px; min-width: 0;
}
.stage span { font-size: .78rem; color: var(--text-muted); }
.stage[aria-checked="true"] { border-color: var(--border-strong); background: color-mix(in srgb, var(--accent) 18%, var(--surface-2)); box-shadow: 0 4px 16px var(--glow); }
.check-inline { display: flex; align-items: flex-start; gap: 9px; margin-top: 11px; font-size: .88rem; cursor: pointer; }
.check-inline input { margin-top: 4px; accent-color: var(--accent); flex: none; }

.btn {
    font: inherit; font-size: .88rem; cursor: pointer; padding: 9px 15px; border-radius: var(--radius-sm);
    border: 1px solid var(--border); background: var(--surface-2); color: var(--text);
    transition: transform var(--speed) var(--ease), box-shadow var(--speed) var(--ease);
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 6px 16px var(--glow); border-color: var(--border-strong); }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-3)); color: #fff; border-color: transparent; font-weight: 600; }
.btn-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }

/* --- Output blocks -------------------------------------------------------- */
.output { display: flex; flex-direction: column; gap: 12px; margin-top: 16px; }
.rec {
    border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--code-bg); overflow: hidden; min-width: 0;
}
.rec-head {
    display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
    padding: 9px 12px; background: var(--surface-2); border-bottom: 1px solid var(--border);
}
.rec-head strong { font-size: .88rem; }
.rec-head .meta { font-size: .76rem; color: var(--text-muted); font-family: var(--font-mono); }
.rec-head .copy { margin-left: auto; font-size: .78rem; padding: 5px 11px; }
.rec-body { padding: 12px; font-family: var(--font-mono); font-size: .82rem; overflow-x: auto; white-space: pre-wrap; word-break: break-word; line-height: 1.65; }
.rec-note { padding: 0 12px 12px; font-size: .82rem; color: var(--text-muted); }

.explain { list-style: none; padding: 0; margin: 0; }
.explain li { display: grid; grid-template-columns: minmax(0, 15em) minmax(0, 1fr); gap: 4px 14px; padding: 8px 12px; border-bottom: 1px solid var(--border); font-size: .87rem; }
.explain li:last-child { border-bottom: none; }
.explain .tok { font-family: var(--font-mono); font-size: .82rem; color: var(--accent-2); word-break: break-all; }
@media (max-width: 620px) { .explain li { grid-template-columns: minmax(0, 1fr); } }

.warn-list { display: flex; flex-direction: column; gap: 8px; margin-top: 14px; }
.msg { display: flex; gap: 10px; padding: 10px 13px; border-radius: var(--radius-sm); font-size: .88rem; border: 1px solid var(--border); align-items: flex-start; }
.msg .m-ic { flex: none; }
.msg.m-bad { border-color: color-mix(in srgb, var(--bad) 45%, transparent); background: color-mix(in srgb, var(--bad) 12%, transparent); }
.msg.m-warn { border-color: color-mix(in srgb, var(--warn) 45%, transparent); background: color-mix(in srgb, var(--warn) 12%, transparent); }
.msg.m-ok { border-color: color-mix(in srgb, var(--ok) 45%, transparent); background: color-mix(in srgb, var(--ok) 12%, transparent); }
.msg.m-info { background: var(--surface-2); }

.lookup { margin-top: 22px; border: 1px dashed var(--border-strong); border-radius: var(--radius-sm); padding: 12px 14px; }
.lookup summary { cursor: pointer; font-weight: 600; font-size: .93rem; }
.tag { font-size: .68rem; text-transform: uppercase; letter-spacing: 1px; padding: 2px 7px; border-radius: 999px; background: var(--accent-2); color: #08060f; margin-left: 6px; }
.section-note { font-size: .86rem; color: var(--text-muted); margin: 10px 0; }

/* --- Spoofing ------------------------------------------------------------- */
.danger-card { border-color: color-mix(in srgb, var(--bad) 38%, var(--border)); }
.spoof-grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr)); margin: 14px 0; }
.spoof-type { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px; min-width: 0; }
.spoof-type h4 { display: flex; align-items: center; gap: 9px; font-size: 1rem; margin-bottom: 8px; }
.spoof-type .num { display: grid; place-items: center; width: 24px; height: 24px; border-radius: 8px; background: var(--surface); border: 1px solid var(--border-strong); font-size: .8rem; font-weight: 700; flex: none; }
.spoof-type p { font-size: .88rem; }
.spoof-type .how { font-family: var(--font-mono); font-size: .8rem; color: var(--text-muted); margin-bottom: 8px; word-break: break-word; }
.spoof-type.worst { border-color: color-mix(in srgb, var(--bad) 45%, transparent); }
.verdict { margin-top: 9px !important; padding: 8px 11px; border-radius: var(--radius-sm); font-size: .86rem !important; }
.verdict.good { background: color-mix(in srgb, var(--ok) 14%, transparent); border: 1px solid color-mix(in srgb, var(--ok) 35%, transparent); }
.verdict.warn { background: color-mix(in srgb, var(--warn) 14%, transparent); border: 1px solid color-mix(in srgb, var(--warn) 35%, transparent); }
.verdict.bad { background: color-mix(in srgb, var(--bad) 14%, transparent); border: 1px solid color-mix(in srgb, var(--bad) 35%, transparent); }

.phase { border-left: 4px solid var(--accent-2); background: var(--surface-2); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: 14px 16px; margin: 12px 0; }
.phase h4 { display: flex; align-items: center; gap: 10px; font-size: 1rem; margin-bottom: 8px; flex-wrap: wrap; }
.clock { font-size: .72rem; letter-spacing: 1px; text-transform: uppercase; padding: 3px 9px; border-radius: 999px; background: var(--accent-2); color: #08060f; font-weight: 700; }
.phase li { font-size: .92rem; }

.triage { border: 1px solid var(--border-strong); border-radius: var(--radius-sm); padding: 14px; margin: 14px 0; background: var(--surface-2); }
.triage-q h4 { font-size: .98rem; margin-bottom: 10px; }
.triage-opts { display: grid; gap: 8px; grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr)); }
.triage-opts button { font: inherit; font-size: .88rem; text-align: left; cursor: pointer; padding: 10px 13px;
    border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--surface); color: var(--text); }
.triage-opts button:hover { border-color: var(--border-strong); background: color-mix(in srgb, var(--accent) 14%, var(--surface)); }
.triage-crumbs { font-size: .78rem; color: var(--text-muted); margin-bottom: 10px; }
.triage-out h4 { color: var(--accent); font-size: 1.02rem; margin: 6px 0 8px; }
.triage-out ul { margin-top: 8px; }
.triage-out li { font-size: .92rem; }

/* --- Two column ----------------------------------------------------------- */
.two-col { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); }
.two-col > div { min-width: 0; }
.two-col h3:first-child { margin-top: 8px; }

/* --- Checklist ------------------------------------------------------------ */
.progress-wrap { display: flex; align-items: center; gap: 12px; margin: 14px 0 16px; flex-wrap: wrap; }
.progress { flex: 1 1 200px; height: 10px; border-radius: 999px; background: var(--surface-2); border: 1px solid var(--border); overflow: hidden; min-width: 120px; }
.progress span { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width var(--speed) var(--ease); }
.progress-count { font-family: var(--font-mono); font-size: .84rem; color: var(--text-muted); }
.checklist { display: flex; flex-direction: column; gap: 4px; }
.ck-group { margin-top: 14px; font-size: .78rem; text-transform: uppercase; letter-spacing: 1.2px; color: var(--text-muted); }
.ck-item { display: flex; gap: 10px; align-items: flex-start; padding: 8px 11px; border-radius: var(--radius-sm); border: 1px solid transparent; cursor: pointer; font-size: .92rem; }
.ck-item:hover { background: var(--surface-2); border-color: var(--border); }
.ck-item input { margin-top: 4px; accent-color: var(--accent); flex: none; width: 16px; height: 16px; }
.ck-item.done span { text-decoration: line-through; color: var(--text-muted); }

/* --- Glossary / FAQ ------------------------------------------------------- */
.glossary dl { display: grid; grid-template-columns: minmax(0, 13em) minmax(0, 1fr); gap: 4px 18px; font-size: .92rem; }
.glossary dt { font-weight: 700; color: var(--accent); }
.glossary dd { color: var(--text-muted); padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.glossary dt { padding-bottom: 8px; border-bottom: 1px solid var(--border); }
@media (max-width: 620px) {
    .glossary dl { grid-template-columns: minmax(0, 1fr); gap: 2px; }
    .glossary dt { border-bottom: none; padding-bottom: 0; }
}

.faq { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 11px 14px; margin-bottom: 8px; background: var(--surface-2); }
.faq summary { cursor: pointer; font-weight: 600; font-size: .95rem; }
.faq p { margin-top: 10px; font-size: .92rem; color: var(--text-muted); }
.faq[open] summary { color: var(--accent); }

.sources p { font-size: .9rem; color: var(--text-muted); }

/* --- Footer --------------------------------------------------------------- */
.site-foot { width: min(94%, 980px); margin: 0 auto; padding: 24px 0 50px; text-align: center; font-size: .87rem; color: var(--text-muted); border-top: 1px solid var(--border); }
.site-foot .muted { display: block; margin-top: 6px; font-size: .82rem; opacity: .85; }

.to-top {
    position: fixed; right: 18px; bottom: 18px; z-index: 30; width: 42px; height: 42px; border-radius: 50%;
    border: 1px solid var(--border-strong); background: var(--surface); color: var(--text);
    font-size: 18px; cursor: pointer; backdrop-filter: blur(10px); box-shadow: 0 8px 22px rgba(0,0,0,.35);
}
.to-top[hidden] { display: none; }

@media (max-width: 560px) {
    .topbar { gap: 8px; }
    .ghost-link span { display: none; }
    .tocbar { top: 58px; }
}