/* ============================================================
   Automa — Cinematic kinetic automation studio
   Self-contained · dark-first · light available · WP-portable
   ============================================================ */

/* ---------- Fonts (self-hosted · OFL) ---------- */
/* Space Grotesk — variable weight 300–700, one file per subset. */
@font-face {
  font-family: "Space Grotesk";
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url("fonts/space-grotesk-vietnamese.woff2") format("woff2");
  unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB;
}
@font-face {
  font-family: "Space Grotesk";
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url("fonts/space-grotesk-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Space Grotesk";
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url("fonts/space-grotesk-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ---------- Tokens ---------- */
:root {
  /* DARK (primary identity) */
  --bg: #05100C;
  --bg-2: #081712;
  --ink: #ECF6F0;
  --ink-muted: #7C948B;
  --ink-dim: #6E877C;            /* AA on --bg for small labels */
  --shadow-lg: 0 40px 80px -28px rgba(0,0,0,.72), 0 14px 30px -14px rgba(0,0,0,.5);
  --hairline: rgba(180, 255, 224, 0.10);
  --hairline-2: rgba(180, 255, 224, 0.18);
  --glass: rgba(12, 26, 21, 0.55);
  --glass-2: rgba(18, 34, 28, 0.7);

  --brand: #16E0A6;
  --brand-bright: #5BFFCB;
  --brand-ink: #16E0A6;
  --amber: #FFB020;

  /* per-app neon (readable on dark) */
  --app-vector: #A98CFF;
  --app-veo3: #58BBFF;
  --app-hl: #16E0A6;
  --app-spa: #FF8CB6;

  --error: #FF6B60;

  /* canvas field colors (read by JS) */
  --field-bg: 5, 16, 12;
  --field-particle: 22, 224, 166;
  --field-line: 90, 255, 203;

  /* type */
  --font-sans: "Be Vietnam Pro", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  --font-display: "Space Grotesk", "Chivo", "Be Vietnam Pro", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, monospace;

  --text-hero: clamp(2.9rem, 1rem + 7vw, 7.5rem);
  --text-h2: clamp(2rem, 1rem + 3.6vw, 4.25rem);
  --text-h3: clamp(1.2rem, 1rem + 0.6vw, 1.5rem);
  --text-base: clamp(1rem, 0.96rem + 0.25vw, 1.1rem);

  --shell: 1280px;
  --gutter: clamp(1.25rem, 3.5vw, 3rem);
  --space-section: clamp(5rem, 3rem + 9vw, 12rem);
  --radius: 20px;
  --radius-sm: 12px;

  --dur: 300ms;
  --dur-slow: 700ms;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-io: cubic-bezier(0.65, 0, 0.35, 1);
}

[data-theme="light"] {
  --bg: #EDEFE8;
  --bg-2: #E4E7DE;
  --ink: #0B1512;
  --ink-muted: #566860;
  --ink-dim: #5E6C62;            /* AA on light --bg */
  --shadow-lg: 0 40px 80px -30px rgba(16,24,20,.35), 0 12px 24px -12px rgba(16,24,20,.14);
  --hairline: rgba(11, 21, 18, 0.12);
  --hairline-2: rgba(11, 21, 18, 0.2);
  --glass: rgba(255, 255, 255, 0.6);
  --glass-2: rgba(255, 255, 255, 0.78);

  --brand: #0FA47B;
  --brand-bright: #0b8a68;
  --brand-ink: #087a5a;
  --amber: #98600b;

  --app-vector: #5b3fd1;
  --app-veo3: #1668B8;
  --app-hl: #087a5a;
  --app-spa: #C43C74;

  --error: #c62828;

  --field-bg: 237, 239, 232;
  --field-particle: 15, 164, 123;
  --field-line: 15, 164, 123;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.02; letter-spacing: -0.03em; font-weight: 700; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; background: none; border: none; color: inherit; }
ul, ol { list-style: none; padding: 0; }
strong { color: var(--ink); font-weight: 600; }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }
.shell { width: 100%; max-width: var(--shell); margin-inline: auto; padding-inline: var(--gutter); }

.skip-link { position: fixed; left: 12px; top: -60px; z-index: 300; background: var(--brand); color: #04140d; padding: .6rem 1rem; border-radius: 10px; font-weight: 600; transition: top var(--dur) var(--ease); }
.skip-link:focus { top: 12px; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; border-radius: 4px; }

/* ---------- Atmosphere ---------- */
.field { position: fixed; inset: 0; z-index: 0; width: 100%; height: 100%; pointer-events: none; }
.atmos-glow {
  position: fixed; z-index: 0; pointer-events: none;
  top: -20%; left: 50%; transform: translateX(-50%);
  width: min(1100px, 120vw); height: 700px;
  background: radial-gradient(50% 50% at 50% 50%, color-mix(in oklab, var(--brand) 24%, transparent), transparent 70%);
  opacity: .28; filter: blur(24px);
}
.grain {
  position: fixed; inset: 0; z-index: 1; pointer-events: none; opacity: .035; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.vignette { position: fixed; inset: 0; z-index: 1; pointer-events: none; box-shadow: inset 0 0 240px 40px color-mix(in oklab, var(--bg) 92%, black); }
[data-theme="light"] .grain { mix-blend-mode: multiply; opacity: .04; }
[data-theme="light"] .vignette { box-shadow: inset 0 0 220px 30px color-mix(in oklab, var(--bg) 88%, black); }

/* everything above atmosphere */
.site-header, main, .site-footer { position: relative; z-index: 2; }

/* ---------- Custom cursor ---------- */
.cursor-dot, .cursor-ring { position: fixed; top: 0; left: 0; z-index: 250; pointer-events: none; border-radius: 50%; opacity: 0; transition: opacity var(--dur) var(--ease); }
.cursor-dot { width: 6px; height: 6px; background: var(--brand); transform: translate(-50%, -50%); }
.cursor-ring { width: 34px; height: 34px; border: 1.5px solid color-mix(in oklab, var(--brand) 70%, transparent); transform: translate(-50%, -50%); transition: width .25s var(--ease), height .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease), opacity var(--dur) var(--ease); }
.cursor-ring.hover { width: 56px; height: 56px; background: color-mix(in oklab, var(--brand) 12%, transparent); border-color: transparent; }
.cursor-ring.cta { width: 72px; height: 72px; background: color-mix(in oklab, var(--brand) 18%, transparent); border-color: transparent; }
body.cursor-on { cursor: none; }
body.cursor-on a, body.cursor-on button, body.cursor-on input, body.cursor-on textarea { cursor: none; }
@media (hover: none) { .cursor-dot, .cursor-ring { display: none; } }

/* ---------- Buttons ---------- */
.btn { position: relative; display: inline-flex; align-items: center; gap: .55ch; padding: .8rem 1.4rem; border-radius: 999px; font-weight: 600; font-size: .97rem; letter-spacing: -0.01em; border: 1px solid transparent; transition: transform var(--dur) var(--ease), background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease); will-change: transform; }
.btn-lg { padding: 1.05rem 1.9rem; font-size: 1.05rem; }
.btn-primary { background: var(--brand); color: #03140d; box-shadow: 0 0 0 0 color-mix(in oklab, var(--brand) 60%, transparent); }
.btn-primary:hover { box-shadow: 0 14px 40px -10px color-mix(in oklab, var(--brand) 65%, transparent); }
.btn-line { color: var(--ink); border-color: var(--hairline-2); background: var(--glass); backdrop-filter: blur(8px); }
.btn-line:hover { border-color: var(--brand); color: var(--brand-ink); }
.btn-arrow { transition: transform var(--dur) var(--ease); }
.btn:hover .btn-arrow { transform: translate(2px, -1px); }

/* ---------- Header ---------- */
.site-header { position: sticky; top: 0; z-index: 100; transition: transform .4s var(--ease); }
.site-header.hide { transform: translateY(-105%); }
.header-inner { display: flex; align-items: center; gap: 1.5rem; height: 76px; }
.site-header::before { content: ""; position: absolute; inset: 0; z-index: -1; background: color-mix(in oklab, var(--bg) 60%, transparent); backdrop-filter: blur(0); border-bottom: 1px solid transparent; transition: backdrop-filter var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease); }
.site-header.elevated::before { backdrop-filter: blur(18px) saturate(1.3); border-bottom-color: var(--hairline); background: color-mix(in oklab, var(--bg) 80%, transparent); }

.brand { display: inline-flex; align-items: center; gap: .5rem; font-weight: 700; }
.brand-word { font-family: var(--font-display); font-size: 1.25rem; letter-spacing: -0.04em; }
.brand-reg { font-size: .7rem; color: var(--brand); align-self: flex-start; margin-top: .1rem; }
.fm-a { fill: var(--amber); } .fm-b { fill: color-mix(in oklab, var(--ink) 35%, var(--brand)); } .fm-c { fill: var(--brand); }
.fm-link { stroke: var(--brand); stroke-width: 1.8; fill: none; stroke-linecap: round; }
.brand:hover .fm-node { animation: blink 1.2s var(--ease) infinite; }
.brand:hover .fm-b { animation-delay: .15s; } .brand:hover .fm-c { animation-delay: .3s; }
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: .4; } }

.site-nav { display: flex; gap: .3rem; margin-inline: auto; }
.nav-link { display: inline-flex; align-items: baseline; gap: .45ch; padding: .5rem .8rem; border-radius: 8px; color: var(--ink-muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .02em; transition: color var(--dur) var(--ease); }
.nav-link:hover, .nav-link.is-active { color: var(--ink); }

.header-actions { display: flex; align-items: center; gap: .7rem; }
.theme-toggle { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--hairline-2); color: var(--ink); transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease); }
.theme-toggle:hover { border-color: var(--brand); color: var(--brand-ink); }
.theme-toggle svg { stroke: currentColor; stroke-width: 2; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.icon-sun { display: none; } .icon-moon { display: block; }
[data-theme="light"] .icon-sun { display: block; } [data-theme="light"] .icon-moon { display: none; }
.btn-arrow { font-size: .9em; }

.menu-toggle { display: none; width: 42px; height: 42px; border-radius: 10px; border: 1px solid var(--hairline-2); flex-direction: column; gap: 5px; align-items: center; justify-content: center; }
.menu-toggle span { width: 18px; height: 1.5px; background: var(--ink); transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease); }
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(3.5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); }
.mobile-menu { border-bottom: 1px solid var(--hairline); background: color-mix(in oklab, var(--bg) 94%, transparent); backdrop-filter: blur(18px); }
.mobile-menu[hidden] { display: none; }
.mobile-nav { display: flex; flex-direction: column; padding: 1rem var(--gutter) 1.5rem; gap: .2rem; max-width: var(--shell); margin-inline: auto; }
.mobile-link { padding: .9rem .3rem; font-size: 1.05rem; border-bottom: 1px solid var(--hairline); text-transform: uppercase; letter-spacing: .03em; }
.mobile-cta { margin-top: 1rem; justify-content: center; }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: 100svh; display: flex; align-items: center; padding: 7rem 0 5rem; }
.hero-inner { width: 100%; }
.hero-copy { max-width: 56rem; margin-inline: auto; text-align: center; }
.telemetry { display: inline-flex; align-items: center; gap: .8rem; flex-wrap: wrap; font-size: .74rem; letter-spacing: .05em; color: var(--ink-muted); text-transform: uppercase; margin-bottom: clamp(1.25rem, 3vw, 2rem); }
.tele-live { display: inline-flex; align-items: center; gap: .5rem; color: var(--ink); }
.tele-sep { color: var(--ink-dim); }
.pulse-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 0 color-mix(in oklab, var(--brand) 60%, transparent); flex: none; }
@media (prefers-reduced-motion: no-preference) { .pulse-dot { animation: pulse 2s var(--ease) infinite; } }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 color-mix(in oklab, var(--brand) 55%, transparent); } 70% { box-shadow: 0 0 0 7px transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }

.hero-title { font-size: var(--text-hero); font-weight: 700; letter-spacing: -0.055em; line-height: 0.92; text-transform: uppercase; }
.hero-title .line { display: block; }
.word { display: inline-block; }
.word .ri { display: inline-block; opacity: 0; transform: translateY(0.5em); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.word.in .ri { opacity: 1; transform: none; }
.grad-word .ri { color: transparent; background: linear-gradient(100deg, var(--brand), color-mix(in oklab, var(--brand) 55%, var(--amber))); -webkit-background-clip: text; background-clip: text; }

.hero-sub { font-size: clamp(1.05rem, 1rem + 0.5vw, 1.3rem); color: var(--ink-muted); max-width: 40rem; margin: 1.8rem auto 0; }
.hero-cta { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2.2rem; justify-content: flex-start; }
.hero-copy .hero-cta, .cta-band-inner .hero-cta { justify-content: center; }

.scroll-hint { position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: .6rem; font-size: .68rem; letter-spacing: .2em; color: var(--ink-muted); }
.scroll-track { width: 1px; height: 40px; background: var(--hairline-2); overflow: hidden; position: relative; }
.scroll-thumb { position: absolute; top: 0; left: 0; width: 100%; height: 40%; background: var(--brand); }
@media (prefers-reduced-motion: no-preference) { .scroll-thumb { animation: scrollDown 1.8s var(--ease-io) infinite; } }
@keyframes scrollDown { 0% { transform: translateY(-100%); } 100% { transform: translateY(250%); } }

/* ---------- Marquee ---------- */
.marquee { border-block: 1px solid var(--hairline); overflow: hidden; padding: 1.1rem 0; background: color-mix(in oklab, var(--bg-2) 60%, transparent); backdrop-filter: blur(6px); }
.marquee-track { display: inline-flex; align-items: center; gap: 2.5rem; white-space: nowrap; font-family: var(--font-display); font-size: clamp(1.3rem, 3vw, 2.2rem); font-weight: 700; text-transform: uppercase; letter-spacing: -0.02em; color: var(--ink); }
@media (prefers-reduced-motion: no-preference) { .marquee-track { animation: marquee 34s linear infinite; } }
@keyframes marquee { to { transform: translateX(-50%); } }
.m-dot { color: var(--brand); font-size: .7em; }

/* ---------- Section shell ---------- */
.section { padding-block: var(--space-section); }
.section-head { max-width: 52rem; margin-bottom: clamp(3rem, 2rem + 4vw, 5rem); }
.section-kicker { display: inline-flex; align-items: center; gap: .6ch; color: var(--brand-ink); font-size: .78rem; letter-spacing: .12em; margin-bottom: 1.4rem; }
.kicker-idx { color: var(--ink-dim); }
.section-title { font-size: var(--text-h2); text-transform: uppercase; letter-spacing: -0.04em; margin-bottom: 1.2rem; }
.section-lead { color: var(--ink-muted); font-size: clamp(1.05rem, 1rem + 0.4vw, 1.25rem); max-width: 40rem; }

/* ---------- Products board ---------- */
.board { position: relative; display: grid; grid-template-columns: repeat(12, 1fr); gap: clamp(1rem, 1.5vw, 1.6rem); }

.module { position: relative; z-index: 1; display: flex; flex-direction: column; background: var(--glass); border: 1px solid var(--hairline); border-radius: var(--radius); padding: clamp(1.5rem, 1rem + 1.5vw, 2.2rem); backdrop-filter: blur(14px); overflow: hidden; transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease); }
.module::before { content: ""; position: absolute; inset: 0; z-index: -1; opacity: 0; background: radial-gradient(130% 100% at 100% 0%, color-mix(in oklab, var(--app) 26%, transparent), transparent 62%); transition: opacity var(--dur) var(--ease); }
.module::after { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--app); transform: scaleY(0); transform-origin: top; transition: transform var(--dur-slow) var(--ease); }
.module:hover { transform: translateY(-8px); border-color: color-mix(in oklab, var(--app) 45%, var(--hairline)); background: var(--glass-2); }
.module:hover::before { opacity: 1; }
.module:hover::after { transform: scaleY(1); }
.m-1 { --app: var(--app-vector); grid-column: span 7; grid-row: span 2; }
.m-2 { --app: var(--app-veo3); grid-column: span 5; }
.m-3 { --app: var(--app-hl); grid-column: span 5; }
.m-4 { --app: var(--app-spa); grid-column: span 7; }

.mod-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.4rem; }
.mod-emblem { width: 60px; height: 60px; border-radius: 14px; display: grid; place-items: center; background: color-mix(in oklab, var(--app) 14%, transparent); border: 1px solid color-mix(in oklab, var(--app) 32%, var(--hairline)); }
.mod-emblem .e-stroke { fill: none; stroke: var(--app); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.mod-emblem .e-fill { fill: var(--app); }
.mod-emblem .e-fill-stroke { fill: none; stroke: var(--app); stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.mod-id { color: var(--ink-dim); font-size: .8rem; }
.mod-status { font-size: .62rem; letter-spacing: .06em; text-transform: uppercase; padding: .28rem .55rem; border-radius: 7px; border: 1px solid var(--hairline-2); color: var(--ink-muted); background: color-mix(in oklab, var(--brand) 8%, transparent); white-space: nowrap; }
.mod-status.soon { color: var(--amber); border-color: color-mix(in oklab, var(--amber) 35%, transparent); background: color-mix(in oklab, var(--amber) 10%, transparent); }
.mod-status.live { color: var(--brand-bright); border-color: color-mix(in oklab, var(--brand) 40%, transparent); background: color-mix(in oklab, var(--brand) 12%, transparent); }
.mod-name { font-size: clamp(1.5rem, 1rem + 1.8vw, 2.4rem); text-transform: uppercase; letter-spacing: -0.03em; margin-bottom: .7rem; }
.m-1 .mod-name { font-size: clamp(1.8rem, 1rem + 2.6vw, 3.2rem); }
.mod-desc { color: var(--ink-muted); max-width: 44ch; margin-bottom: 1.4rem; flex: 1; }
.m-1 .mod-desc { font-size: 1.12rem; }
.mod-tags { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: 1.6rem; }
.mod-tags li { font-size: .72rem; padding: .3rem .6rem; border-radius: 6px; border: 1px solid var(--hairline); color: var(--ink-muted); text-transform: uppercase; letter-spacing: .03em; }
.mod-cta { align-self: flex-start; display: inline-flex; align-items: center; gap: .5ch; font-size: .8rem; font-weight: 600; letter-spacing: .06em; color: var(--app); padding: .3rem 0; }
.mod-cta span { transition: transform var(--dur) var(--ease); }
.module:hover .mod-cta span { transform: translateX(5px); }

/* ---------- Value ---------- */
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--hairline); border: 1px solid var(--hairline); border-radius: var(--radius); overflow: hidden; margin-bottom: clamp(1.5rem, 3vw, 2.5rem); }
.stat { background: color-mix(in oklab, var(--bg-2) 55%, transparent); backdrop-filter: blur(10px); padding: clamp(1.5rem, 1rem + 2vw, 2.6rem); display: flex; flex-direction: column; gap: .5rem; }
.stat-num { font-size: clamp(2.5rem, 1.5rem + 4vw, 4.5rem); font-weight: 700; line-height: 1; color: var(--brand-ink); letter-spacing: -0.05em; }
.stat-label { color: var(--ink-muted); font-size: .9rem; text-transform: uppercase; letter-spacing: .04em; }

.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1rem, 1.5vw, 1.6rem); }
.v-card { background: var(--glass); border: 1px solid var(--hairline); border-radius: var(--radius); padding: clamp(1.6rem, 1rem + 1.5vw, 2.2rem); backdrop-filter: blur(12px); transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease); }
.v-card:hover { transform: translateY(-5px); border-color: var(--hairline-2); }
.v-big { grid-column: span 3; display: grid; grid-template-columns: auto 1fr; align-items: start; gap: 1.5rem 2rem; background: radial-gradient(120% 140% at 0 0, color-mix(in oklab, var(--brand) 12%, transparent), transparent 55%), var(--glass); border-color: color-mix(in oklab, var(--brand) 25%, var(--hairline)); }
.v-big h3 { grid-column: 2; }
.v-big p { grid-column: 2; max-width: 60ch; }
.v-big .v-icon { grid-row: span 2; }
.v-icon { width: 50px; height: 50px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 1.2rem; color: var(--brand); background: color-mix(in oklab, var(--brand) 14%, transparent); border: 1px solid color-mix(in oklab, var(--brand) 26%, var(--hairline)); }
.v-icon svg { fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.v-big .v-icon { margin-bottom: 0; }
.v-big .v-icon svg { fill: currentColor; stroke: none; }
.v-card h3 { font-size: var(--text-h3); text-transform: uppercase; letter-spacing: -0.02em; margin-bottom: .6rem; }
.v-big h3 { font-size: clamp(1.6rem, 1rem + 1.8vw, 2.4rem); }
.v-card p { color: var(--ink-muted); }

/* ---------- Pipeline (how) ---------- */
.pipeline { display: grid; gap: 0; border-top: 1px solid var(--hairline); }
.pl-step { display: grid; grid-template-columns: auto 1fr; gap: clamp(1.5rem, 4vw, 5rem); align-items: center; padding: clamp(2rem, 3vw, 3.5rem) 0; border-bottom: 1px solid var(--hairline); position: relative; transition: padding-left var(--dur) var(--ease); }
.pl-step::before { content: ""; position: absolute; left: 0; top: 50%; width: 0; height: 1px; background: var(--brand); transition: width var(--dur) var(--ease); }
.pl-step:hover { padding-left: 2rem; }
.pl-step:hover::before { width: 1.2rem; }
.pl-num { font-size: clamp(2rem, 1rem + 4vw, 4rem); font-weight: 700; color: var(--ink-dim); line-height: 1; transition: color var(--dur) var(--ease); }
.pl-step:hover .pl-num { color: var(--brand-ink); }
.pl-body h3 { font-size: var(--text-h3); text-transform: uppercase; letter-spacing: -0.02em; margin-bottom: .5rem; }
.pl-body p { color: var(--ink-muted); max-width: 46ch; }

/* ---------- Contact ---------- */
.contact-inner { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 6rem); align-items: center; }
.contact-copy .section-title { margin-bottom: 1.2rem; }
.mail-link { display: inline-block; margin-top: 1.6rem; font-size: 1.05rem; color: var(--brand-ink); letter-spacing: .02em; border-bottom: 1px solid color-mix(in oklab, var(--brand) 45%, transparent); padding-bottom: 3px; transition: color var(--dur) var(--ease); }
.mail-link:hover { color: var(--amber); }
.contact-form { background: var(--glass-2); border: 1px solid var(--hairline); border-radius: var(--radius); padding: clamp(1.6rem, 1rem + 2.5vw, 2.8rem); backdrop-filter: blur(16px); display: grid; gap: 1.2rem; }
.field { display: grid; gap: .5rem; }
.field label { font-size: .72rem; letter-spacing: .08em; color: var(--ink-muted); }
.field input, .field textarea { width: 100%; padding: .85rem 1rem; border-radius: var(--radius-sm); border: 1px solid var(--hairline-2); background: color-mix(in oklab, var(--bg) 40%, transparent); color: var(--ink); font: inherit; font-size: .98rem; resize: vertical; transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease); }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px color-mix(in oklab, var(--brand) 20%, transparent); }
.field.has-error input, .field.has-error textarea { border-color: var(--error); }
.field-error { color: var(--error); font-size: .82rem; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-success { color: var(--brand-ink); font-weight: 600; letter-spacing: .04em; text-align: center; }
.form-error { color: #ff6b6b; font-weight: 600; letter-spacing: .04em; text-align: center; }
.form-error a { color: inherit; text-decoration: underline; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--hairline); padding-top: clamp(3rem, 2rem + 4vw, 6rem); padding-bottom: 2rem; background: color-mix(in oklab, var(--bg-2) 50%, transparent); }
.footer-cta { padding-bottom: clamp(2.5rem, 5vw, 5rem); border-bottom: 1px solid var(--hairline); margin-bottom: 3rem; }
.footer-word { display: inline-flex; align-items: flex-start; gap: .2em; font-family: var(--font-display); font-size: clamp(3rem, 1rem + 11vw, 10rem); font-weight: 700; text-transform: uppercase; letter-spacing: -0.05em; line-height: .9; color: var(--ink); transition: color var(--dur) var(--ease); }
.footer-word:hover { color: var(--brand-ink); }
.fw-arrow { font-size: .35em; color: var(--brand); }
.footer-grid { display: grid; grid-template-columns: 1.8fr 1fr 1fr 1.2fr; gap: 2rem; padding-bottom: 3rem; }
.footer-legal { color: var(--ink-dim); font-size: .72rem; margin-top: .8rem; letter-spacing: .02em; }
.footer-brand .brand { display: inline-flex; }
.footer-tag { color: var(--ink-muted); margin-top: 1rem; max-width: 24rem; }
.footer-col { display: flex; flex-direction: column; gap: .6rem; }
.footer-col h4 { font-size: .72rem; letter-spacing: .12em; color: var(--ink-dim); margin-bottom: .5rem; }
.footer-col a { color: var(--ink-muted); font-size: .9rem; width: fit-content; transition: color var(--dur) var(--ease), transform var(--dur) var(--ease); }
.footer-col a:hover { color: var(--brand-ink); transform: translateX(3px); }
.footer-base { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; padding-top: 1.6rem; border-top: 1px solid var(--hairline); color: var(--ink-dim); font-size: .76rem; letter-spacing: .05em; }
.footer-status { display: inline-flex; align-items: center; gap: .5rem; color: var(--ink-muted); }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal, [data-reveal], .word .ri { opacity: 1 !important; transform: none !important; transition: none !important; }
  .marquee-track, .scroll-thumb, .pulse-dot, .brand:hover .fm-node { animation: none !important; }
  /* Không nhấc/đẩy khi hover nếu người dùng chọn giảm chuyển động */
  .btn:hover, .module:hover, .v-card:hover, .uc-card:hover, .price-card:hover,
  .feat-list li:hover, .footer-col a:hover, .pl-step:hover, .fp-node:hover { transform: none !important; }
}

/* ---------- Use cases ---------- */
.uc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(1rem, 1.5vw, 1.5rem); }
.uc-card { background: var(--glass); border: 1px solid var(--hairline); border-radius: var(--radius); padding: clamp(1.4rem, 1rem + 1vw, 1.9rem); backdrop-filter: blur(12px); transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease); }
.uc-card:hover { transform: translateY(-5px); border-color: var(--hairline-2); }
.uc-ico { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 12px; margin-bottom: 1rem; color: var(--brand); background: color-mix(in oklab, var(--brand) 14%, transparent); border: 1px solid color-mix(in oklab, var(--brand) 26%, var(--hairline)); }
.uc-ico svg { fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.uc-card h3 { font-size: var(--text-h3); text-transform: uppercase; letter-spacing: -0.02em; margin-bottom: .5rem; }
.uc-card p { color: var(--ink-muted); font-size: .96rem; }

.int-note { color: var(--ink-dim); font-size: .8em; }

/* ---------- Pricing ---------- */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1rem, 1.5vw, 1.5rem); align-items: stretch; }
.price-card { position: relative; display: flex; flex-direction: column; background: var(--glass); border: 1px solid var(--hairline); border-radius: var(--radius); padding: clamp(1.6rem, 1rem + 1.5vw, 2.2rem); backdrop-filter: blur(12px); }
.price-hot { border-color: color-mix(in oklab, var(--brand) 40%, var(--hairline)); box-shadow: 0 0 50px -18px color-mix(in oklab, var(--brand) 55%, transparent); }
.price-badge { position: absolute; top: -.7rem; right: 1.4rem; background: var(--brand); color: #03140d; font-size: .6rem; letter-spacing: .1em; padding: .3rem .6rem; border-radius: 6px; }
.price-name { font-size: var(--text-h3); text-transform: uppercase; letter-spacing: -0.02em; margin-bottom: .6rem; }
.price-amt { margin-bottom: .3rem; }
.price-num { font-family: var(--font-display); font-size: clamp(1.8rem, 1rem + 2vw, 2.6rem); font-weight: 700; color: var(--ink); letter-spacing: -0.03em; }
.price-sub { color: var(--ink-muted); font-size: .92rem; margin-bottom: 1.4rem; }
.price-feats { display: grid; gap: .6rem; margin-bottom: 1.8rem; flex: 1; }
.price-feats li { position: relative; padding-left: 1.5rem; color: var(--ink-muted); font-size: .95rem; }
.price-feats li::before { content: "✓"; position: absolute; left: 0; color: var(--brand); font-weight: 700; }
.price-card .btn { justify-content: center; }
.price-foot { color: var(--ink-dim); font-size: .78rem; margin-top: 1.5rem; text-align: center; }

/* ---------- FAQ ---------- */
.faq-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.faq-aside { position: sticky; top: 100px; background: radial-gradient(120% 100% at 0 0, color-mix(in oklab, var(--brand) 12%, transparent), transparent 55%), var(--glass); border: 1px solid color-mix(in oklab, var(--brand) 24%, var(--hairline)); border-radius: var(--radius); padding: clamp(1.6rem, 1rem + 1.5vw, 2.2rem); }
.faq-aside h2 { font-size: var(--text-h3); text-transform: uppercase; letter-spacing: -0.02em; margin-bottom: .7rem; }
.faq-aside p { color: var(--ink-muted); margin-bottom: 1.4rem; }
.faq-aside .btn { justify-content: center; width: 100%; }
.faq-mail { display: block; margin-top: 1rem; text-align: center; color: var(--brand-ink); font-size: .9rem; }
.faq-list { display: grid; gap: .8rem; }
.faq-item { border: 1px solid var(--hairline); border-radius: 14px; background: var(--glass); backdrop-filter: blur(10px); overflow: hidden; }
.faq-item summary { list-style: none; cursor: pointer; padding: 1.1rem 1.3rem; font-weight: 600; color: var(--ink); display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--brand); font-size: 1.3rem; font-weight: 400; transition: transform var(--dur) var(--ease); }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary:hover { color: var(--brand-ink); }
.faq-item > p { padding: 0 1.3rem 1.2rem; color: var(--ink-muted); }
.faq-item a { color: var(--brand-ink); border-bottom: 1px solid color-mix(in oklab, var(--brand) 40%, transparent); }

/* ---------- Nav dropdown (Sản phẩm) ---------- */
.nav-has-sub { position: relative; display: inline-flex; align-items: center; }
.nav-caret { font-size: .6em; margin-left: .1ch; display: inline-block; transition: transform var(--dur) var(--ease); }
.nav-has-sub:hover .nav-caret, .nav-has-sub.open .nav-caret { transform: rotate(180deg); }
.nav-sub { position: absolute; top: 100%; left: 0; min-width: 220px; padding: .5rem; margin-top: .3rem; display: flex; flex-direction: column; gap: .1rem; background: color-mix(in oklab, var(--bg) 92%, transparent); backdrop-filter: blur(16px); border: 1px solid var(--hairline); border-radius: 14px; box-shadow: var(--shadow-lg); opacity: 0; visibility: hidden; transform: translateY(6px); transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur); z-index: 20; }
.nav-has-sub:hover .nav-sub, .nav-has-sub.open .nav-sub { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-sub a { padding: .55rem .7rem; border-radius: 9px; color: var(--ink-muted); font-size: .82rem; text-transform: none; letter-spacing: 0; transition: background var(--dur) var(--ease), color var(--dur) var(--ease); }
.nav-sub a:hover { background: color-mix(in oklab, var(--brand) 12%, transparent); color: var(--ink); }

.section-more { margin-top: clamp(1.5rem, 3vw, 2.5rem); }

/* ---------- Inner page hero (generic pages) ---------- */
.app-page { position: relative; z-index: 2; --app: var(--brand); }
/* Accent riêng từng app — dark (mặc định) + light-safe (AA trên nền sáng) */
.app-page[data-app="vector-studio"] { --app: #A98CFF; }
.app-page[data-app="veo3-flow"] { --app: #58BBFF; }
.app-page[data-app="hl-market"] { --app: #16E0A6; }
.app-page[data-app="thao-moc-mansion"] { --app: #FF8CB6; }
[data-theme="light"] .app-page[data-app="vector-studio"] { --app: #5b3fd1; }
[data-theme="light"] .app-page[data-app="veo3-flow"] { --app: #1668B8; }
[data-theme="light"] .app-page[data-app="hl-market"] { --app: #087a5a; }
[data-theme="light"] .app-page[data-app="thao-moc-mansion"] { --app: #C43C74; }
/* Accent theo app cho phần tử con (thẻ/hàng/bảng) — dùng token nên tự đổi theo light/dark.
   Nguồn màu DUY NHẤT: các biến --app-* ở :root. KHÔNG nhúng hex thẳng vào style inline. */
[data-app="vector-studio"] { --app: var(--app-vector); }
[data-app="veo3-flow"] { --app: var(--app-veo3); }
[data-app="hl-market"] { --app: var(--app-hl); }
[data-app="thao-moc-mansion"] { --app: var(--app-spa); }

/* Chỉ dành cho trình đọc màn hình. */
.screen-reader-text { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

.page-hero { position: relative; padding: clamp(6rem, 4rem + 6vw, 9rem) 0 clamp(2rem, 1rem + 3vw, 3.5rem); }
.crumb { display: inline-block; color: var(--ink-muted); font-size: .8rem; letter-spacing: .04em; margin-bottom: 1.4rem; }
.crumb:hover { color: var(--brand-ink); }
.page-title { font-size: clamp(2.2rem, 1rem + 4.5vw, 4rem); text-transform: uppercase; letter-spacing: -0.04em; margin: .4rem 0 0; }
.page-title::after { content: ""; display: block; width: 3.5rem; height: 4px; margin-top: 1.1rem; border-radius: 4px; background: linear-gradient(90deg, var(--app), transparent); }
.page-lede { font-size: clamp(1.1rem, 1rem + 0.6vw, 1.45rem); color: var(--ink-muted); max-width: 46rem; margin-top: 1.4rem; }
.page-hero .hero-cta { margin-top: 2rem; }
.ph-note { margin-top: 1.4rem; color: var(--ink-dim); font-size: .82rem; max-width: 46rem; }
/* Bớt khoảng trống lớn giữa page-hero và section đầu tiên */
.page-hero + .section { padding-top: clamp(1rem, 0.5rem + 1.5vw, 2.5rem); }
/* app-hero đã có underline riêng (accent), tránh nhân đôi */
.app-hero .page-title::after { display: none; }

/* ---------- App detail hero (two-column, accent-themed) ---------- */
.app-hero { overflow: hidden; }
.app-hero-glow { position: absolute; z-index: 0; top: -30%; right: -8%; width: 620px; height: 620px; border-radius: 50%; pointer-events: none; background: radial-gradient(50% 50% at 50% 50%, color-mix(in oklab, var(--app) 34%, transparent), transparent 70%); opacity: .55; filter: blur(28px); }
.app-hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.ph-copy .mod-status { display: inline-flex; margin: 0 0 1rem; }
.app-hero .page-title { color: var(--ink); }
.app-hero .page-title::after { content: ""; display: block; width: 3.5rem; height: 4px; margin-top: 1rem; border-radius: 4px; background: linear-gradient(90deg, var(--app), transparent); }
.ph-visual { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1.6rem; min-height: 340px; padding: 2.5rem 1.5rem; border: 1px solid color-mix(in oklab, var(--app) 22%, var(--hairline)); border-radius: 26px; background: radial-gradient(120% 120% at 100% 0%, color-mix(in oklab, var(--app) 14%, transparent), transparent 60%), var(--glass); backdrop-filter: blur(12px); overflow: hidden; }
.ph-rings { position: absolute; inset: 0; pointer-events: none; background:
  radial-gradient(circle at 50% 42%, transparent 78px, color-mix(in oklab, var(--app) 20%, transparent) 79px, transparent 81px),
  radial-gradient(circle at 50% 42%, transparent 118px, color-mix(in oklab, var(--app) 12%, transparent) 119px, transparent 121px),
  radial-gradient(circle at 50% 42%, transparent 160px, color-mix(in oklab, var(--app) 8%, transparent) 161px, transparent 163px); }
.ph-badge { position: absolute; top: 1.1rem; left: 1.1rem; z-index: 2; font-size: .66rem; letter-spacing: .1em; text-transform: uppercase; color: var(--app); padding: .3rem .6rem; border-radius: 7px; background: color-mix(in oklab, var(--app) 14%, transparent); border: 1px solid color-mix(in oklab, var(--app) 30%, transparent); }
.ph-emblem-lg { position: relative; z-index: 1; display: grid; place-items: center; width: 128px; height: 128px; border-radius: 30px; color: var(--app); background: color-mix(in oklab, var(--app) 12%, var(--bg)); border: 1px solid color-mix(in oklab, var(--app) 30%, transparent); box-shadow: 0 0 60px -14px color-mix(in oklab, var(--app) 60%, transparent); }
.ph-emblem-lg svg { width: 72px; height: 72px; }
.ph-chips { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: .5rem; justify-content: center; }
.ph-chips li { font-size: .72rem; padding: .35rem .7rem; border-radius: 999px; color: var(--ink); background: color-mix(in oklab, var(--app) 12%, var(--glass)); border: 1px solid color-mix(in oklab, var(--app) 26%, var(--hairline)); }
.ph-emblem-lg .e-stroke { fill: none; stroke: var(--app); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.ph-emblem-lg .e-fill { fill: var(--app); }

/* ---------- Feature list (detail pages) ---------- */
.feat-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(.8rem, 1.5vw, 1.2rem); }
.feat-list li { position: relative; display: flex; gap: 1rem; align-items: flex-start; color: var(--ink); font-size: 1.02rem; padding: 1.3rem 1.4rem; background: var(--glass); border: 1px solid var(--hairline); border-radius: 16px; transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease); }
.feat-list li:hover { transform: translateY(-4px); border-color: color-mix(in oklab, var(--app) 40%, var(--hairline)); }
.feat-num { font-family: var(--font-mono); font-size: .9rem; font-weight: 600; color: var(--app); flex: none; padding-top: .1rem; }
.feat-text { line-height: 1.5; }
.feat-list li:last-child:nth-child(odd) { grid-column: 1 / -1; }

/* ---------- Detail info band (dành cho / trạng thái) ---------- */
.info-band { border-top: 1px solid var(--hairline); }
.info-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.info-chips { display: flex; flex-direction: column; gap: .7rem; margin-top: 1.4rem; }
.info-chips li { display: flex; align-items: center; gap: .8rem; font-size: 1.05rem; color: var(--ink); }
.ic-dot { width: 8px; height: 8px; border-radius: 50%; flex: none; background: var(--app); box-shadow: 0 0 12px -2px var(--app); }
.info-state { background: radial-gradient(120% 120% at 100% 0%, color-mix(in oklab, var(--app) 12%, transparent), transparent 60%), var(--glass); border: 1px solid color-mix(in oklab, var(--app) 22%, var(--hairline)); border-radius: var(--radius); padding: clamp(1.6rem, 1rem + 1.5vw, 2.2rem); }
.info-state .mod-status { display: inline-flex; margin: 1rem 0; }
.info-note { color: var(--ink-muted); margin-bottom: 1.2rem; }
.info-link { color: var(--app); font-weight: 600; font-size: .9rem; letter-spacing: .02em; }
.info-link:hover { text-decoration: underline; }

/* ---------- CTA band ---------- */
.cta-band { border-top: 1px solid var(--hairline); background: color-mix(in oklab, var(--bg-2) 40%, transparent); }
.cta-band-inner { text-align: center; max-width: 44rem; margin-inline: auto; }
.cta-band-inner .section-title { margin-bottom: 1rem; }
.cta-band-inner .hero-cta { justify-content: center; margin-top: 1.8rem; }

/* ---------- Legal pages ---------- */
.legal-page { position: relative; z-index: 2; padding: clamp(6rem, 4rem + 5vw, 9rem) 0 5rem; }
.legal-page .shell { max-width: 780px; }
.legal-back { display: inline-block; color: var(--ink-muted); font-size: .9rem; margin-bottom: 2rem; }
.legal-back:hover { color: var(--brand-ink); }
.legal-page h1 { font-size: clamp(2rem, 1rem + 3vw, 3rem); text-transform: uppercase; letter-spacing: -0.03em; margin-bottom: 1rem; }
.legal-page h2 { font-size: 1.2rem; margin: 2.2rem 0 .6rem; }
.legal-page p { color: var(--ink-muted); margin-bottom: .8rem; }
.legal-page a { color: var(--brand-ink); }
.legal-note { color: var(--amber); background: color-mix(in oklab, var(--amber) 10%, transparent); border: 1px solid color-mix(in oklab, var(--amber) 30%, transparent); border-radius: 10px; padding: .9rem 1.1rem; font-size: .82rem; margin-bottom: 2rem; }

/* ---------- Responsive ---------- */
@media (max-width: 1000px) {
  .site-nav { display: none; }
  .menu-toggle { display: flex; }
  .header-cta { display: none; }
  .hero { min-height: auto; padding-top: 6rem; }
  .scroll-hint { display: none; }
  .m-1, .m-2, .m-3, .m-4 { grid-column: span 6; grid-row: auto; }
  .board { grid-template-columns: repeat(6, 1fr); }
  .value-grid { grid-template-columns: repeat(2, 1fr); }
  .v-big { grid-column: span 2; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .contact-inner { grid-template-columns: 1fr; }
  .uc-grid { grid-template-columns: repeat(2, 1fr); }
  .int-inner { grid-template-columns: 1fr; gap: 2rem; }
  .price-grid { grid-template-columns: 1fr; max-width: 30rem; margin-inline: auto; }
  .tm-grid { grid-template-columns: 1fr; }
  .feat-list { grid-template-columns: 1fr; }
  .app-hero-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .ph-visual { min-height: 220px; order: -1; }
  .faq-layout { grid-template-columns: 1fr; }
  .faq-aside { position: static; }
  .info-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 620px) {
  .m-1, .m-2, .m-3, .m-4 { grid-column: 1 / -1; }
  .board { grid-template-columns: 1fr; }
  .value-grid { grid-template-columns: 1fr; }
  .v-big { grid-column: 1; grid-template-columns: 1fr; }
  .v-big h3, .v-big p { grid-column: 1; }
  .stats-row { grid-template-columns: 1fr; }
  .uc-grid { grid-template-columns: 1fr; }
  .int-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .pl-step { grid-template-columns: 1fr; gap: .5rem; }
}

/* ============================================================
   Blog — danh sách, thẻ bài, bài viết (article), archive, search.
   ============================================================ */

/* Cột đọc hẹp cho bài viết */
.shell-narrow { width: 100%; max-width: 46rem; margin-inline: auto; padding-inline: var(--gutter); }

/* -------- Lưới bài viết + thẻ -------- */
.blog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: clamp(1.4rem, 1rem + 1.5vw, 2.4rem); }

.post-card { display: flex; flex-direction: column; border: 1px solid var(--hairline); border-radius: var(--radius); background: var(--glass); overflow: hidden; transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease); }
.post-card:hover { transform: translateY(-6px); border-color: var(--hairline-2); background: var(--glass-2); }

.post-card-media { display: block; aspect-ratio: 16 / 10; overflow: hidden; background: var(--bg-2); }
.post-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--dur-slow) var(--ease); }
.post-card:hover .post-card-media img { transform: scale(1.05); }
.post-card-ph { display: block; width: 100%; height: 100%; background:
  radial-gradient(120% 100% at 0% 0%, color-mix(in oklab, var(--app) 26%, transparent), transparent 60%),
  linear-gradient(135deg, var(--bg-2), var(--bg)); }

.post-card-body { display: flex; flex-direction: column; gap: .7rem; padding: 1.3rem 1.4rem 1.5rem; }
.post-card-title { font-size: clamp(1.15rem, 1rem + .5vw, 1.4rem); line-height: 1.12; letter-spacing: -0.02em; }
.post-card-title a { color: var(--ink); background-image: linear-gradient(var(--app), var(--app)); background-size: 0% 2px; background-position: 0 100%; background-repeat: no-repeat; transition: background-size var(--dur) var(--ease), color var(--dur) var(--ease); }
.post-card:hover .post-card-title a { color: var(--app); }
.post-card-excerpt { color: var(--ink-muted); font-size: .96rem; line-height: 1.55; }
.post-card-meta { color: var(--ink-dim); font-size: .76rem; letter-spacing: .04em; margin-top: auto; }

/* Chip chuyên mục */
.post-chip { align-self: flex-start; display: inline-flex; align-items: center; padding: .28rem .7rem; border-radius: 999px; font-size: .7rem; letter-spacing: .1em; text-transform: uppercase; color: var(--app); border: 1px solid color-mix(in oklab, var(--app) 34%, var(--hairline)); background: color-mix(in oklab, var(--app) 12%, transparent); transition: background var(--dur) var(--ease); }
.post-chip:hover { background: color-mix(in oklab, var(--app) 20%, transparent); }

/* -------- Bài viết (article) -------- */
.article-head { padding-top: clamp(5.5rem, 4rem + 6vw, 8rem); }
.breadcrumb { margin-bottom: 1.6rem; color: var(--ink-dim); font-size: .76rem; }
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: .5ch; padding: 0; margin: 0; }
.breadcrumb li { display: inline-flex; gap: .5ch; }
.breadcrumb li + li::before { content: "/"; color: var(--hairline-2); }
.breadcrumb a { color: var(--ink-muted); transition: color var(--dur) var(--ease); }
.breadcrumb a:hover { color: var(--app); }
.breadcrumb [aria-current] { color: var(--ink); }

.article-title { font-size: clamp(2rem, 1rem + 4vw, 3.4rem); line-height: 1.04; letter-spacing: -0.035em; margin: 1rem 0 0; }
.article-standfirst { font-size: clamp(1.1rem, 1rem + .6vw, 1.35rem); color: var(--ink-muted); line-height: 1.5; margin-top: 1.1rem; }
.article-meta { margin-top: 1.5rem; display: flex; flex-wrap: wrap; align-items: center; gap: .7ch; color: var(--ink-dim); font-size: .82rem; letter-spacing: .03em; }
.article-meta .am-author { color: var(--ink); }

.article-cover { margin: clamp(2rem, 1rem + 3vw, 3.5rem) 0 0; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--hairline); aspect-ratio: 16 / 9; }
.article-cover img { width: 100%; height: 100%; object-fit: cover; }

/* Prose — chữ đọc */
.article-prose { margin-top: clamp(2rem, 1rem + 3vw, 3.5rem); color: var(--ink); font-size: 1.12rem; line-height: 1.78; }
.article-prose > * + * { margin-top: 1.35em; }
.article-prose p { color: color-mix(in oklab, var(--ink) 92%, var(--ink-muted)); }
.article-prose h2 { font-size: clamp(1.5rem, 1rem + 1.4vw, 2rem); line-height: 1.15; letter-spacing: -0.02em; margin-top: 2.4em; }
.article-prose h3 { font-size: clamp(1.25rem, 1rem + .8vw, 1.55rem); line-height: 1.2; letter-spacing: -0.015em; margin-top: 2em; }
.article-prose h2 + p, .article-prose h3 + p { margin-top: .7em; }
.article-prose a { color: var(--app); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; text-decoration-color: color-mix(in oklab, var(--app) 45%, transparent); transition: text-decoration-color var(--dur) var(--ease); }
.article-prose a:hover { text-decoration-color: var(--app); }
.article-prose strong { color: var(--ink); font-weight: 700; }
.article-prose ul, .article-prose ol { padding-left: 1.3em; }
.article-prose li + li { margin-top: .5em; }
.article-prose li::marker { color: var(--app); }
.article-prose blockquote { border-left: 3px solid var(--app); padding: .2em 0 .2em 1.3em; margin-left: 0; color: var(--ink-muted); font-size: 1.15em; font-style: italic; }
.article-prose img, .article-prose figure img { max-width: 100%; height: auto; border-radius: var(--radius-sm); }
.article-prose figure { margin-inline: 0; }
.article-prose figcaption { margin-top: .6em; color: var(--ink-dim); font-size: .85em; text-align: center; }
.article-prose code { font-family: var(--font-mono); font-size: .88em; background: var(--glass-2); border: 1px solid var(--hairline); border-radius: 6px; padding: .1em .4em; }
.article-prose pre { background: var(--bg-2); border: 1px solid var(--hairline); border-radius: var(--radius-sm); padding: 1.1rem 1.3rem; overflow-x: auto; }
.article-prose pre code { background: none; border: 0; padding: 0; font-size: .9em; }
.article-prose hr { border: 0; height: 1px; background: var(--hairline-2); margin-block: 2.4em; }
.article-prose table { width: 100%; border-collapse: collapse; font-size: .95em; }
.article-prose th, .article-prose td { border: 1px solid var(--hairline); padding: .6em .8em; text-align: left; }
.article-prose th { background: var(--glass); }

/* Tag + prev/next */
.article-tags { list-style: none; display: flex; flex-wrap: wrap; gap: .6rem; padding: 0; margin: clamp(2rem, 1rem + 3vw, 3rem) 0 0; }
.article-tags a { display: inline-flex; padding: .35rem .8rem; border-radius: 999px; border: 1px solid var(--hairline); color: var(--ink-muted); font-size: .8rem; letter-spacing: .02em; transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease); }
.article-tags a:hover { border-color: var(--app); color: var(--app); }

.article-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: clamp(2.5rem, 1rem + 4vw, 4rem); padding-top: 2rem; border-top: 1px solid var(--hairline); }
.article-nav .apn { display: block; }
.article-nav a { display: flex; flex-direction: column; gap: .35rem; color: var(--ink); font-family: var(--font-display); font-weight: 500; letter-spacing: -0.01em; line-height: 1.25; transition: color var(--dur) var(--ease); }
.article-nav a:hover { color: var(--app); }
.article-nav .apn-next { text-align: right; }
.article-nav .apn-k { color: var(--ink-dim); font-family: var(--font-mono); font-weight: 400; font-size: .74rem; letter-spacing: .06em; text-transform: uppercase; }

/* Related */
.section-related { border-top: 1px solid var(--hairline); }
.related-title { font-size: clamp(1.4rem, 1rem + 1.2vw, 1.9rem); letter-spacing: -0.02em; margin-bottom: clamp(1.5rem, 1rem + 1.5vw, 2.5rem); }

/* Phân trang */
.automa-pagination { margin-top: clamp(2.5rem, 1rem + 4vw, 4rem); }
.automa-pagination .nav-links { display: flex; flex-wrap: wrap; gap: .5rem; justify-content: center; }
.automa-pagination .page-numbers { display: inline-flex; align-items: center; justify-content: center; min-width: 2.6rem; height: 2.6rem; padding: 0 .7rem; border-radius: 12px; border: 1px solid var(--hairline); color: var(--ink-muted); font-family: var(--font-mono); font-size: .85rem; transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease); }
.automa-pagination a.page-numbers:hover { border-color: var(--app); color: var(--app); }
.automa-pagination .page-numbers.current { background: var(--app); border-color: var(--app); color: #04140d; font-weight: 700; }
.automa-pagination .page-numbers.dots { border-color: transparent; }

/* Search form */
.search-form { display: flex; gap: .6rem; max-width: 30rem; margin-top: 1.8rem; }
.search-field { flex: 1; padding: .8rem 1.1rem; border-radius: 12px; border: 1px solid var(--hairline-2); background: var(--glass); color: var(--ink); font-size: 1rem; }
.search-field:focus { outline: none; border-color: var(--app); }
.search-submit { flex: none; }

/* Empty state */
.blog-empty { padding-block: clamp(2rem, 1rem + 3vw, 4rem); }

@media (max-width: 640px) {
  .blog-grid { grid-template-columns: 1fr; }
  .article-nav { grid-template-columns: 1fr; }
  .article-nav .apn-next { text-align: left; }
  .article-prose { font-size: 1.06rem; }
}

/* ============================================================
   Sản phẩm — dải tóm tắt · chọn theo nhu cầu · bảng so sánh.
   ============================================================ */
.scenario-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.2rem; }
.scenario-card { display: flex; flex-direction: column; gap: .55rem; padding: 1.6rem 1.7rem; border: 1px solid var(--hairline); border-radius: var(--radius); background: var(--glass); transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease); }
.scenario-card:hover { border-color: var(--hairline-2); background: var(--glass-2); }
.sc-want { font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-dim); }
.sc-goal { font-family: var(--font-display); font-size: clamp(1.2rem, 1rem + .6vw, 1.5rem); font-weight: 600; letter-spacing: -0.02em; color: var(--ink); line-height: 1.15; }
.sc-desc { color: var(--ink-muted); font-size: .95rem; line-height: 1.55; }
.sc-apps { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: .6rem; }
.sc-app { display: inline-flex; align-items: center; gap: .5ch; padding: .4rem .85rem; border-radius: 999px; border: 1px solid color-mix(in oklab, var(--app) 30%, var(--hairline)); color: var(--ink); font-family: var(--font-mono); font-size: .8rem; letter-spacing: .02em; transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease); }
.sc-app:hover { border-color: var(--app); background: color-mix(in oklab, var(--app) 12%, transparent); }
.sc-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--app); flex: none; }

.compare-scroll { overflow-x: auto; border: 1px solid var(--hairline); border-radius: var(--radius); }
.compare-table { width: 100%; border-collapse: collapse; min-width: 640px; font-size: .95rem; }
.compare-table th, .compare-table td { text-align: left; padding: 1rem 1.2rem; border-bottom: 1px solid var(--hairline); vertical-align: middle; }
.compare-table thead th { font-family: var(--font-mono); font-size: .74rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-dim); font-weight: 400; }
.compare-table tbody tr { transition: background var(--dur) var(--ease); } /* --app do [data-app] cấp */
.compare-table tbody tr:hover { background: color-mix(in oklab, var(--app) 8%, transparent); }
.compare-table tbody tr:last-child td, .compare-table tbody tr:last-child th { border-bottom: 0; }
.compare-table th[scope="row"] a { font-family: var(--font-display); font-weight: 600; color: var(--ink); transition: color var(--dur) var(--ease); }
.compare-table th[scope="row"] a:hover { color: var(--app); }
.ct-badge { display: inline-flex; padding: .2rem .6rem; border-radius: 999px; font-size: .7rem; letter-spacing: .06em; color: var(--app); border: 1px solid color-mix(in oklab, var(--app) 30%, var(--hairline)); }

/* ============================================================
   Blog — chip chủ đề · bài nổi bật.
   ============================================================ */
.blog-cats { display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: clamp(1.5rem, 1rem + 1.5vw, 2.5rem); }
.bc-chip { display: inline-flex; align-items: center; gap: .5ch; padding: .45rem .9rem; border-radius: 999px; border: 1px solid var(--hairline); color: var(--ink-muted); font-size: .82rem; letter-spacing: .02em; transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease); }
.bc-chip:hover { border-color: var(--brand); color: var(--brand); }
.bc-chip.is-active { background: var(--brand); border-color: var(--brand); color: #04140d; }
.bc-count { opacity: .55; font-size: .9em; }

.post-featured { display: grid; grid-template-columns: 1.15fr 1fr; gap: clamp(1.5rem, 1rem + 2vw, 3rem); align-items: center; border: 1px solid var(--hairline); border-radius: var(--radius); overflow: hidden; background: var(--glass); margin-bottom: clamp(2rem, 1rem + 3vw, 3.5rem); transition: border-color var(--dur) var(--ease); }
.post-featured:hover { border-color: var(--hairline-2); }
.pf-media { display: block; align-self: stretch; min-height: 280px; overflow: hidden; background: var(--bg-2); }
.pf-media img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--dur-slow) var(--ease); }
.post-featured:hover .pf-media img { transform: scale(1.04); }
.pf-ph { display: block; width: 100%; height: 100%; min-height: 280px; background: radial-gradient(120% 100% at 0% 0%, color-mix(in oklab, var(--brand) 28%, transparent), transparent 60%), linear-gradient(135deg, var(--bg-2), var(--bg)); }
.pf-body { display: flex; flex-direction: column; gap: .85rem; padding: clamp(1.5rem, 1rem + 2vw, 2.5rem) clamp(1.5rem, 1rem + 2vw, 2.5rem) clamp(1.5rem, 1rem + 2vw, 2.5rem) 0; }
.pf-kicker { color: var(--brand-ink); font-size: .75rem; letter-spacing: .12em; }
.pf-title { font-size: clamp(1.5rem, 1rem + 2vw, 2.4rem); line-height: 1.08; letter-spacing: -0.03em; }
.pf-title a { color: var(--ink); transition: color var(--dur) var(--ease); }
.pf-title a:hover { color: var(--brand); }
.pf-excerpt { color: var(--ink-muted); line-height: 1.6; }
.pf-meta { color: var(--ink-dim); font-size: .78rem; letter-spacing: .03em; }
.pf-cta { align-self: flex-start; display: inline-flex; align-items: center; gap: .5ch; color: var(--brand); font-weight: 600; letter-spacing: .04em; margin-top: .3rem; }
.pf-cta span { display: inline-block; transition: transform var(--dur) var(--ease); }
.pf-cta:hover span { transform: translateX(3px); }
.blog-more-title { font-size: clamp(1.1rem, 1rem + .6vw, 1.4rem); color: var(--ink-muted); letter-spacing: -0.01em; margin-bottom: 1.4rem; }

/* ============================================================
   Article — mục lục · chia sẻ · hộp tác giả.
   ============================================================ */
.article-toc { margin: clamp(2rem, 1rem + 2vw, 2.6rem) 0 0; padding: 1.3rem 1.5rem; border: 1px solid var(--hairline); border-left: 3px solid var(--app); border-radius: var(--radius-sm); background: var(--glass); }
.toc-title { font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-dim); margin-bottom: .7rem; }
.article-toc ol { margin: 0; padding-left: 1.2em; display: flex; flex-direction: column; gap: .5rem; }
.article-toc a { color: var(--ink-muted); transition: color var(--dur) var(--ease); }
.article-toc a:hover { color: var(--app); }
.article-toc li::marker { color: var(--app); font-family: var(--font-mono); font-size: .85em; }

.article-share { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem; margin-top: clamp(2rem, 1rem + 2vw, 2.6rem); padding-top: 1.4rem; border-top: 1px solid var(--hairline); font-size: .82rem; }
.article-share .share-label { color: var(--ink-dim); letter-spacing: .06em; text-transform: uppercase; font-size: .72rem; margin-right: .3rem; }
.article-share a, .share-copy { display: inline-flex; padding: .4rem .8rem; border-radius: 999px; border: 1px solid var(--hairline); color: var(--ink-muted); background: none; cursor: pointer; font: inherit; letter-spacing: .02em; transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease); }
.article-share a:hover, .share-copy:hover { border-color: var(--app); color: var(--app); }
.share-copy.is-done { border-color: var(--brand); color: var(--brand); }

.author-box { display: flex; gap: 1.2rem; align-items: flex-start; margin-top: clamp(2.5rem, 1rem + 3vw, 3.5rem); padding: 1.5rem; border: 1px solid var(--hairline); border-radius: var(--radius); background: var(--glass); }
.ab-avatar { flex: none; width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center; font-family: var(--font-display); font-weight: 700; font-size: 1.3rem; color: #04140d; background: var(--brand); }
.ab-body { display: flex; flex-direction: column; gap: .3rem; }
.ab-name { font-family: var(--font-display); font-weight: 600; color: var(--ink); }
.ab-bio { color: var(--ink-muted); font-size: .92rem; line-height: 1.55; }

@media (max-width: 720px) {
  .post-featured { grid-template-columns: 1fr; }
  .pf-media, .pf-ph { min-height: 200px; }
  .pf-body { padding: 1.4rem; }
  .scenario-grid { grid-template-columns: 1fr; }
}