/* =====================================================================
   Nagaland AI theme — tokens, layout, components. Dark by default,
   light via html[data-theme="light"].
   ===================================================================== */
:root {
  --bg: #070B10; --bg-2: #0B1118; --surface: #0F1720; --surface-2: #142030;
  --line: rgba(255,255,255,.08); --line-2: rgba(255,255,255,.14);
  --text: #F2F6F4; --text-2: #C7D2CC; --muted: #9FB0A8;
  --green: #10B981; --green-2: #0d9488; --green-soft: rgba(16,185,129,.12);
  --gold: #EAC85E; --gold-2: #d4a843; --cyan: #67E8F9; --danger: #EF4444;
  --font-display: "Bricolage Grotesque", "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --radius: 18px; --radius-lg: 28px; --container: 1180px; --gutter: 20px;
  --shadow: 0 24px 60px rgba(0,0,0,.45); --shadow-sm: 0 10px 30px rgba(0,0,0,.25);
  --header-h: 72px;
  color-scheme: dark;
}
html[data-theme="light"] {
  --bg: #F7FAF8; --bg-2: #FFFFFF; --surface: #FFFFFF; --surface-2: #EEF4F0;
  --line: rgba(15,36,25,.08); --line-2: rgba(15,36,25,.16);
  --text: #0F2419; --text-2: #2E4A3C; --muted: #526B5E;
  --green: #0A7558; --green-2: #10B981; --green-soft: rgba(10,117,88,.1);
  --gold: #B8902E; --gold-2: #d4a843; --cyan: #0A7558;
  --shadow: 0 24px 60px rgba(15,36,25,.12); --shadow-sm: 0 10px 30px rgba(15,36,25,.08);
  color-scheme: light;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--font); font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { max-width: 100%; height: auto; }
a { color: var(--green); text-decoration: none; }
a:hover { color: var(--green-2); }
h1, h2, h3, h4 { font-family: var(--font-display); letter-spacing: -.02em; line-height: 1.12; margin: 0 0 .5em; color: var(--text); font-weight: 800; }
h1 { font-size: clamp(34px, 5.4vw, 64px); }
h2 { font-size: clamp(26px, 3.6vw, 42px); }
h3 { font-size: clamp(19px, 2.2vw, 24px); }
p { margin: 0 0 1em; }
.nai-skip { position: absolute; left: -9999px; top: 8px; background: var(--green); color: #fff; padding: 8px 12px; border-radius: 8px; z-index: 1000; }
.nai-skip:focus { left: 8px; }
.screen-reader-text { position: absolute !important; clip: rect(1px,1px,1px,1px); width: 1px; height: 1px; overflow: hidden; }
.nai-container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }
.nai-container--narrow { max-width: 800px; }
.nai-container--wide { max-width: 1040px; }
.nai-hide-sm { }

/* logo */
body .nai-logo-mark { display: inline-block; width: 26px; height: 26px; background: url("../img/face-icon.png") center / contain no-repeat; position: relative; flex-shrink: 0; vertical-align: middle; filter: drop-shadow(0 3px 8px rgba(255,70,40,.35)); }
body .nai-logo-mark::after { content: none; }
body .nai-logo-mark--lg { width: 64px; height: 64px; }
.nai-footer__brand .custom-logo-link { display: inline-block; margin-bottom: 2px; }
.custom-logo { display: block; height: auto; width: auto; max-height: 44px; max-width: min(220px, 40vw); object-fit: contain; }
.nai-footer__brand .custom-logo { max-height: 40px; }

/* buttons */
.nai-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-family: var(--font); font-size: 14.5px; font-weight: 700; padding: 11px 18px; border-radius: 12px; border: 1px solid transparent; cursor: pointer; text-decoration: none !important; transition: transform .12s, background .15s, border-color .15s, filter .15s; line-height: 1.2; white-space: nowrap; }
body .nai-btn--primary { background: linear-gradient(135deg, #10B981, #0d9488); color: #fff !important; box-shadow: 0 8px 20px rgba(16,185,129,.3); }
.nai-btn--primary:hover { transform: translateY(-1px); filter: brightness(1.06); }
.nai-btn--ghost { background: transparent; border-color: var(--line-2); color: var(--text) !important; }
.nai-btn--ghost:hover { border-color: var(--green); background: var(--green-soft); }
.nai-btn--lg { padding: 15px 26px; font-size: 16px; border-radius: 14px; }
.nai-btn--block { width: 100%; }
.nai-btn .nai-icon { width: 18px; height: 18px; }
.nai-iconbtn { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 12px; border: 1px solid var(--line-2); background: transparent; color: var(--text); cursor: pointer; transition: background .15s, border-color .15s; }
.nai-iconbtn:hover { background: var(--green-soft); border-color: var(--green); }
.nai-icon { width: 22px; height: 22px; }
.nai-eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 12.5px; font-weight: 800; letter-spacing: .6px; text-transform: uppercase; color: var(--green); background: var(--green-soft); border: 1px solid rgba(16,185,129,.3); padding: 6px 12px; border-radius: 999px; margin-bottom: 16px; }
.nai-eyebrow--sm { font-size: 11px; padding: 4px 9px; margin-bottom: 10px; }
.nai-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(16,185,129,.2); animation: nai-pulse 2s infinite; }
@keyframes nai-pulse { 0%, 100% { box-shadow: 0 0 0 4px rgba(16,185,129,.2); } 50% { box-shadow: 0 0 0 8px rgba(16,185,129,.05); } }

/* announcement + header */
.nai-announce { background: linear-gradient(90deg, #0d9488, #10B981); color: #06130d; font-size: 13.5px; font-weight: 700; text-align: center; padding: 8px 0; }
.nai-announce a { color: #06130d; }
.nai-header { position: sticky; top: 0; z-index: 900; background: color-mix(in srgb, var(--bg) 78%, transparent); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid transparent; transition: border-color .2s, background .2s; }
.nai-header.is-scrolled { border-bottom-color: var(--line); }
.nai-header__inner { display: flex; align-items: center; gap: 24px; height: var(--header-h); }
.nai-header__brand { min-width: 0; flex-shrink: 1; display: flex; align-items: center; }
.nai-header__brand a { display: inline-flex; align-items: center; }
.nai-header__actions { flex-shrink: 0; }
.nai-header__nav { flex: 1; display: flex; justify-content: center; }
.nai-menu { list-style: none; margin: 0; padding: 0; display: flex; gap: 4px; }
.nai-menu a { display: inline-block; padding: 8px 12px; border-radius: 10px; color: var(--text-2); font-weight: 600; font-size: 14.5px; }
.nai-menu a:hover, .nai-menu .current-menu-item > a { color: var(--text); background: var(--surface-2); }
.nai-header__actions { display: flex; align-items: center; gap: 8px; }
.nai-scheme .nai-icon--sun { display: none; } .nai-scheme .nai-icon--moon { display: block; }
html[data-theme="light"] .nai-scheme .nai-icon--sun { display: block; } html[data-theme="light"] .nai-scheme .nai-icon--moon { display: none; }
.nai-burger { display: none; flex-direction: column; gap: 4px; }
.nai-burger span { width: 18px; height: 2px; background: currentColor; border-radius: 2px; transition: transform .2s, opacity .2s; }
.nai-drawer { display: none; border-top: 1px solid var(--line); background: var(--bg-2); padding: 14px var(--gutter) 20px; }
.nai-drawer__menu { list-style: none; margin: 0 0 12px; padding: 0; }
.nai-drawer__menu a { display: block; padding: 12px 10px; border-radius: 10px; color: var(--text); font-weight: 600; font-size: 16px; }
.nai-drawer__menu a:hover { background: var(--surface-2); }
.nai-drawer__actions { display: flex; flex-direction: column; gap: 8px; }
body.nai-drawer-open .nai-drawer { display: block; }
body.nai-drawer-open .nai-burger span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
body.nai-drawer-open .nai-burger span:nth-child(2) { opacity: 0; }
body.nai-drawer-open .nai-burger span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* hero */
.nai-hero { position: relative; padding: 64px 0 40px; overflow: hidden; }
.nai-hero__bg { position: absolute; inset: 0; pointer-events: none; }
.nai-blob { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .55; }
.nai-blob--a { width: 520px; height: 520px; left: -140px; top: -160px; background: radial-gradient(circle, rgba(16,185,129,.55), transparent 65%); animation: nai-drift 14s ease-in-out infinite alternate; }
.nai-blob--b { width: 460px; height: 460px; right: -120px; top: 120px; background: radial-gradient(circle, rgba(234,200,94,.35), transparent 65%); animation: nai-drift 18s ease-in-out infinite alternate-reverse; }
html[data-theme="light"] .nai-blob { opacity: .35; }
@keyframes nai-drift { from { transform: translate(0,0); } to { transform: translate(40px, 30px); } }
.nai-grid { position: absolute; inset: 0; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 48px 48px; mask-image: radial-gradient(ellipse at 50% 0%, #000 20%, transparent 70%); -webkit-mask-image: radial-gradient(ellipse at 50% 0%, #000 20%, transparent 70%); opacity: .5; }
.nai-hero__text { position: relative; text-align: center; max-width: 820px; margin: 0 auto 36px; }
.nai-hero__text h1 { margin-bottom: 18px; background: linear-gradient(180deg, var(--text) 0%, var(--text-2) 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.nai-hero__text p { font-size: clamp(16px, 1.9vw, 19px); color: var(--muted); max-width: 680px; margin: 0 auto 26px; }
.nai-hero__cta { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.nai-hero__trust { list-style: none; margin: 22px 0 0; padding: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 22px; font-size: 13.5px; color: var(--muted); }
.nai-hero__trust li { display: inline-flex; align-items: center; gap: 6px; }
.nai-hero__trust .nai-icon { width: 16px; height: 16px; color: var(--green); }
.nai-hero__chat { position: relative; max-width: 940px; margin: 0 auto; }
.nai-hero--app { padding-bottom: 20px; }
.nai-hero--app .nai-split__text { text-align: left; }
.nai-split .nai-hero__cta { justify-content: flex-start; }

/* sections */
.nai-section { padding: 88px 0; position: relative; }
.nai-section--alt { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.nai-section--tight { padding: 40px 0; }
.nai-section__head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.nai-section__head p { color: var(--muted); font-size: 17px; }
.nai-reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; transition-delay: var(--d, 0ms); }
.nai-reveal.is-in { opacity: 1; transform: none; }

/* stats */
.nai-stats { padding: 10px 0 0; }
.nai-stats__list { list-style: none; margin: 0; padding: 22px 10px; display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.nai-stats__list li { text-align: center; padding: 10px; border-right: 1px solid var(--line); }
.nai-stats__list li:last-child { border-right: 0; }
.nai-stats__list strong { display: block; font-family: var(--font-display); font-size: clamp(22px, 2.6vw, 32px); font-weight: 800; letter-spacing: -.5px; background: linear-gradient(135deg, var(--green), var(--gold)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.nai-stats__list span { font-size: 13px; color: var(--muted); }

/* features */
.nai-features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.nai-feature { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 22px; transition: transform .2s, border-color .2s, box-shadow .2s; }
.nai-feature:hover { transform: translateY(-4px); border-color: rgba(16,185,129,.45); box-shadow: var(--shadow-sm); }
.nai-feature__icon { width: 46px; height: 46px; border-radius: 14px; display: flex; align-items: center; justify-content: center; background: var(--green-soft); color: var(--green); margin-bottom: 16px; }
.nai-feature h3 { font-size: 18px; margin-bottom: 8px; }
.nai-feature p { font-size: 14.5px; color: var(--muted); margin: 0; }

/* steps */
.nai-steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; counter-reset: s; }
.nai-step { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; position: relative; }
.nai-step__n { display: inline-flex; width: 38px; height: 38px; align-items: center; justify-content: center; border-radius: 12px; background: linear-gradient(135deg, var(--green), var(--green-2)); color: #fff; font-weight: 800; margin-bottom: 14px; }
.nai-step p { color: var(--muted); font-size: 15px; margin: 0; }

/* split */
.nai-split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.nai-split--reverse .nai-split__text { order: 2; }
.nai-split__text p { color: var(--muted); font-size: 17px; }
.nai-checks { list-style: none; margin: 0 0 22px; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.nai-checks li { position: relative; padding-left: 30px; font-size: 15.5px; color: var(--text-2); }
.nai-checks li::before { content: ""; position: absolute; left: 0; top: 3px; width: 19px; height: 19px; border-radius: 50%; background: var(--green-soft); border: 1px solid rgba(16,185,129,.5); }
.nai-checks li::after { content: ""; position: absolute; left: 6.5px; top: 7px; width: 5px; height: 9px; border: solid var(--green); border-width: 0 2px 2px 0; transform: rotate(45deg); }
.nai-mock { background: radial-gradient(120% 120% at 50% 0%, #13283a 0%, #0e1b27 45%, #0a121c 100%); border: 1px solid rgba(255,255,255,.12); border-radius: 22px; padding: 18px; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 10px; color: #F2F6F4; }
.nai-mock__bar { display: flex; align-items: center; gap: 10px; font-size: 13px; font-weight: 700; color: #9FB0A8; padding-bottom: 10px; border-bottom: 1px solid rgba(255,255,255,.08); }
.nai-mock__bubble { font-size: 14.5px; line-height: 1.5; background: rgba(255,255,255,.07); padding: 12px 14px; border-radius: 16px 16px 16px 5px; max-width: 92%; }
.nai-mock__bubble--user { background: linear-gradient(135deg, #10B981, #0d9488); align-self: flex-end; border-radius: 16px 16px 5px 16px; }
.nai-mock__bubble em { display: block; margin-top: 6px; color: #EAC85E; font-style: normal; font-size: 13.5px; }
.nai-mock__link { color: #67E8F9; text-decoration: underline; }

/* ecosystem */
.nai-eco { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.nai-eco__card { display: flex; flex-direction: column; gap: 6px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; color: var(--text); transition: transform .2s, border-color .2s; }
.nai-eco__card:hover { transform: translateY(-3px); border-color: rgba(234,200,94,.5); color: var(--text); }
.nai-eco__name { font-family: var(--font-display); font-weight: 800; font-size: 18px; }
.nai-eco__desc { color: var(--muted); font-size: 14.5px; }
.nai-eco__url { margin-top: 6px; font-size: 13px; color: var(--green); display: inline-flex; align-items: center; gap: 6px; }
.nai-eco__url .nai-icon { width: 14px; height: 14px; }

/* faq */
.nai-faq { display: flex; flex-direction: column; gap: 10px; }
.nai-faq__item { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 0 20px; }
.nai-faq__item summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 0; font-weight: 700; font-size: 16.5px; }
.nai-faq__item summary::-webkit-details-marker { display: none; }
.nai-faq__item summary .nai-icon { width: 18px; height: 18px; color: var(--muted); transform: rotate(90deg); transition: transform .2s; flex-shrink: 0; }
.nai-faq__item[open] summary .nai-icon { transform: rotate(-90deg); color: var(--green); }
.nai-faq__item p { color: var(--muted); margin: 0 0 18px; font-size: 15.5px; }

/* final CTA */
.nai-cta-final__box { text-align: center; padding: 56px 28px; border-radius: var(--radius-lg); background: linear-gradient(160deg, rgba(16,185,129,.18), rgba(234,200,94,.08)); border: 1px solid var(--line-2); }
.nai-cta-final__box p { color: var(--muted); max-width: 560px; margin: 0 auto 22px; font-size: 17px; }

/* badges + phone (shared with plugin markup) */
.nai-badges { display: flex; flex-wrap: wrap; gap: 10px; margin: 10px 0 18px; }
.nai-hero .nai-badges, .nai-split__text .nai-badges { margin: 12px 0 22px; }
.nai-badge { display: inline-flex; align-items: center; gap: 10px; padding: 9px 16px 9px 12px; border-radius: 12px; background: #0b0f14; color: #fff !important; border: 1px solid rgba(255,255,255,.18); min-width: 170px; transition: transform .12s, border-color .15s; }
.nai-badge:hover { transform: translateY(-1px); border-color: rgba(255,255,255,.4); }
.nai-badge svg { width: 24px; height: 24px; }
.nai-badge span { display: flex; flex-direction: column; line-height: 1.1; }
.nai-badge small { font-size: 10px; opacity: .75; } .nai-badge strong { font-size: 16px; }
.nai-phone { width: 240px; height: 460px; margin: 0 auto; border-radius: 38px; background: #0b0f14; border: 8px solid #1b2430; box-shadow: var(--shadow); padding: 26px 14px; }
.nai-phone__screen { display: flex; flex-direction: column; gap: 10px; height: 100%; }
.nai-phone__screen .nai-logo-mark { margin: 0 auto 12px; }
.nai-phone__bubble { font-size: 12.5px; line-height: 1.4; background: rgba(255,255,255,.08); color: #F2F6F4; padding: 10px 12px; border-radius: 14px 14px 14px 4px; max-width: 90%; }
.nai-phone__bubble--user { background: linear-gradient(135deg, #10B981, #0d9488); align-self: flex-end; border-radius: 14px 14px 4px 14px; }

/* pages */
.nai-page__head { padding: 56px 0 28px; background: radial-gradient(80% 60% at 50% 0%, rgba(16,185,129,.14), transparent 70%); text-align: center; }
.nai-page__head h1 { font-size: clamp(30px, 4.6vw, 52px); }
.nai-page__sub { color: var(--muted); font-size: 17px; max-width: 640px; margin: 0 auto; }
.nai-page { padding-bottom: 72px; }
.nai-page--full { padding-top: 40px; }
.nai-page__thumb, .nai-post__thumb { margin: 0 0 28px; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); }
.nai-prose { font-size: 17px; line-height: 1.75; color: var(--text-2); padding-top: 14px; }
.nai-prose--wide { font-size: 16px; }
.nai-prose > * + * { margin-top: 1.1em; }
.nai-prose h2 { font-size: clamp(22px, 2.8vw, 30px); margin-top: 2em; color: var(--text); padding-bottom: 8px; border-bottom: 1px solid var(--line); }
.nai-prose h3 { font-size: 20px; margin-top: 1.6em; color: var(--text); }
.nai-prose h4 { font-size: 17px; margin-top: 1.4em; color: var(--text); }
.nai-prose p.nai-lead, .nai-prose > p:first-of-type { font-size: 19px; color: var(--text); }
.nai-prose a { color: var(--green); font-weight: 600; text-decoration: underline; text-decoration-color: rgba(16,185,129,.35); text-underline-offset: 3px; }
.nai-prose a:hover { text-decoration-color: var(--green); }
.nai-prose ul, .nai-prose ol { padding-left: 0; list-style: none; }
.nai-prose li { position: relative; padding: 10px 14px 10px 36px; margin: 6px 0; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; }
.nai-prose ul li::before { content: ""; position: absolute; left: 14px; top: 17px; width: 9px; height: 9px; border-radius: 50%; background: var(--green); }
.nai-prose ol { counter-reset: nai; }
.nai-prose ol li { counter-increment: nai; }
.nai-prose ol li::before { content: counter(nai); position: absolute; left: 12px; top: 10px; font-weight: 800; color: var(--green); font-size: 14px; }
.nai-prose blockquote { margin: 1.4em 0; padding: 18px 22px; border-left: 4px solid var(--gold); background: var(--surface); border-radius: 0 14px 14px 0; font-style: italic; color: var(--text); }
.nai-prose blockquote p { margin: 0; }
.nai-prose code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .9em; background: var(--surface-2); padding: 2px 6px; border-radius: 6px; }
.nai-prose pre { background: #0F2419; color: #d1fae5; padding: 18px 20px; border-radius: 14px; overflow-x: auto; font-size: 14px; }
.nai-prose pre code { background: none; padding: 0; }
.nai-prose table { width: 100%; border-collapse: separate; border-spacing: 0; border: 1px solid var(--line-2); border-radius: 12px; overflow: hidden; font-size: 15px; }
.nai-prose th { background: var(--surface-2); text-align: left; padding: 12px 14px; font-weight: 700; color: var(--text); }
.nai-prose td { padding: 11px 14px; border-top: 1px solid var(--line); }
.nai-prose img { border-radius: 14px; }
.nai-prose hr { border: 0; height: 1px; background: linear-gradient(90deg, var(--green), transparent); margin: 2.2em 0; }
.nai-prose strong { color: var(--text); }
.nai-prose .wp-block-buttons .wp-block-button__link, .nai-prose .nai-btn { text-decoration: none; }
.nai-prose .nai-card, .nai-prose .nai-auth, .nai-prose .nai-upgrade, .nai-prose .nai-pricing, .nai-prose .nai-account, .nai-prose .nai-contact, .nai-prose .nai-appcta { font-size: 15px; }
.nai-prose .nai-checks li, .nai-prose .nai-children li { background: transparent; border: 0; padding: 0 0 0 28px; margin: 0; }
.nai-prose .nai-checks li::before { left: 0; top: 3px; width: 18px; height: 18px; background: var(--green-soft); }
.nai-prose .nai-children li { display: flex; padding: 12px 14px; background: var(--surface-2); border: 1px solid var(--line); }
.nai-prose .nai-children li::before { display: none; }
.nai-toc { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 16px 20px; margin: 0 0 28px; font-size: 14.5px; }
.nai-toc strong { display: block; margin-bottom: 8px; color: var(--text); }
.nai-toc ol { margin: 0; padding: 0; list-style: none; display: grid; gap: 4px; }
.nai-toc li { background: none; border: 0; padding: 2px 0 2px 22px; margin: 0; }
.nai-toc li::before { top: 4px; left: 2px; }
.nai-toc a { text-decoration: none; color: var(--text-2); font-weight: 600; }

/* blog */
.nai-posts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.nai-post-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: transform .2s, border-color .2s; }
.nai-post-card:hover { transform: translateY(-4px); border-color: rgba(16,185,129,.4); }
.nai-post-card__thumb { display: block; aspect-ratio: 16/9; background: var(--surface-2); }
.nai-post-card__thumb img { width: 100%; height: 100%; object-fit: cover; }
.nai-post-card__ph { display: flex; align-items: center; justify-content: center; height: 100%; }
.nai-post-card__body { padding: 20px 20px 22px; display: flex; flex-direction: column; gap: 8px; }
.nai-post-card h2 { font-size: 19px; margin: 0; }
.nai-post-card h2 a { color: var(--text); }
.nai-post-card p { color: var(--muted); font-size: 14.5px; margin: 0; }
.nai-post-card__meta { font-size: 12.5px; color: var(--muted); margin-top: auto; padding-top: 6px; }
.nai-pagination { display: flex; justify-content: center; gap: 6px; margin-top: 36px; }
.nai-pagination .page-numbers { display: inline-flex; align-items: center; justify-content: center; min-width: 40px; height: 40px; padding: 0 12px; border-radius: 10px; border: 1px solid var(--line-2); color: var(--text); font-weight: 600; }
.nai-pagination .page-numbers.current { background: var(--green); color: #fff; border-color: transparent; }
.nai-post__meta { color: var(--muted); font-size: 14px; margin-top: 10px; }
.nai-post__meta a { color: var(--green); }
.nai-tags { margin: 28px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.nai-tags a { font-size: 12.5px; font-weight: 700; padding: 6px 10px; border-radius: 999px; background: var(--surface-2); color: var(--text-2); }
.nai-share { display: flex; align-items: center; gap: 10px; margin: 24px 0; font-size: 14px; color: var(--muted); }
.nai-share a { padding: 7px 12px; border-radius: 10px; border: 1px solid var(--line-2); color: var(--text); font-weight: 600; }
.nai-postnav { display: flex; justify-content: space-between; gap: 12px; margin: 30px 0; }
.nai-postnav a { color: var(--text); font-weight: 600; }
.nai-search { display: flex; gap: 8px; margin: 18px auto 0; max-width: 480px; }
.nai-search input { flex: 1; font: inherit; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--line-2); background: var(--surface); color: var(--text); }
.nai-comments { margin-top: 40px; }
.nai-comments__list { list-style: none; padding: 0; }
.nai-comments .comment { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 16px; margin-bottom: 10px; }
.nai-comments input, .nai-comments textarea { font: inherit; width: 100%; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--line-2); background: var(--surface); color: var(--text); }
.nai-404 { padding: 56px 28px; }
.nai-404 .nai-logo-mark { margin-bottom: 18px; }

/* footer */
.nai-footer { border-top: 1px solid var(--line); background: var(--bg-2); padding: 64px 0 28px; margin-top: 20px; }
.nai-footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr; gap: 32px; }
.nai-footer__brand p { color: var(--muted); font-size: 14.5px; margin: 14px 0 6px; max-width: 320px; }
.nai-footer__col h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .6px; color: var(--muted); margin-bottom: 12px; font-family: var(--font); }
.nai-footer__menu { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.nai-footer__menu a { color: var(--text-2); font-size: 14.5px; }
.nai-footer__menu a:hover { color: var(--green); }
.nai-social { display: flex; flex-wrap: wrap; gap: 10px; }
.nai-social a { font-size: 13px; font-weight: 700; padding: 6px 10px; border-radius: 999px; border: 1px solid var(--line-2); color: var(--text-2); }
.nai-footer__bottom { margin-top: 44px; padding-top: 20px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 13px; color: var(--muted); }
.nai-footer__bottom p { margin: 0; }

/* chat full page */
body.nai-chat-full { overflow: hidden; }

/* responsive */
@media (max-width: 1100px) {
  .nai-features { grid-template-columns: repeat(2, 1fr); }
  .nai-footer__grid { grid-template-columns: 1.4fr 1fr 1fr; }
}
@media (max-width: 900px) {
  .nai-header__nav { display: none; }
  .nai-burger { display: inline-flex; }
  .nai-hide-sm { display: none !important; }
  .nai-split { grid-template-columns: 1fr; gap: 28px; }
  .nai-split--reverse .nai-split__text { order: 0; }
  .nai-steps { grid-template-columns: 1fr; }
  .nai-eco { grid-template-columns: repeat(2, 1fr); }
  .nai-posts { grid-template-columns: repeat(2, 1fr); }
  .nai-stats__list { grid-template-columns: repeat(3, 1fr); }
  .nai-stats__list li:nth-child(3n) { border-right: 0; }
  .nai-section { padding: 64px 0; }
}
@media (max-width: 640px) {
  :root { --gutter: 16px; --header-h: 64px; }
  .nai-hero { padding: 40px 0 24px; }
  .nai-features, .nai-eco, .nai-posts { grid-template-columns: 1fr; }
  .nai-stats__list { grid-template-columns: 1fr 1fr; padding: 14px 6px; }
  .nai-stats__list li { border-right: 0; }
  .nai-footer__grid { grid-template-columns: 1fr 1fr; }
  .nai-footer__brand { grid-column: 1 / -1; }
  .nai-hero__cta .nai-btn { width: 100%; }
  .nai-prose { font-size: 16px; }
  .nai-cta-final__box { padding: 40px 20px; }
  .nai-header__actions .nai-btn--primary { padding: 9px 12px; font-size: 13px; }
  .nai-header__inner { gap: 12px; }
  .custom-logo { max-height: 36px; max-width: min(150px, 38vw); }
}
@media (prefers-reduced-motion: reduce) { .nai-reveal { opacity: 1; transform: none; transition: none; } .nai-blob { animation: none; } }