/* ============================================================
   WTDrive — Landing page styles
   Brand: light surfaces, blue→cyan brand gradient, green accent
   Type:  Geist (sans) + Geist Mono (numerals/specs)
   ============================================================ */

:root {
  /* Brand */
  --blue-700: #1554c0;
  --blue-600: #1e6fe6;
  --blue-500: #2b86f0;
  --cyan-400: #2bc4e0;
  --brand-grad: linear-gradient(135deg, #1e6fe6 0%, #22bce0 100%);

  /* Accent (success / “đang bật”) */
  --green-700: #15803d;
  --green-600: #16a34a;
  --green-100: #dcfce7;
  --green-50:  #f0fdf4;

  /* Ink + neutrals (slate, slightly cool) */
  --ink:       #0a1733;
  --slate-900: #0f172a;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --slate-150: #eaeef4;
  --slate-100: #f1f5f9;
  --slate-50:  #f8fafc;
  --white:     #ffffff;

  /* Semantic */
  --bg:        #ffffff;
  --bg-soft:   #f6f8fb;
  --text:      var(--slate-700);
  --heading:   var(--ink);
  --muted:     var(--slate-500);
  --border:    #e6eaf1;
  --border-strong: #d8deea;

  /* Type */
  --font-sans: "Geist", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SFMono-Regular", monospace;

  /* Radii */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 22px;
  --r-pill: 999px;

  /* Shadows — soft, never heavy */
  --sh-xs: 0 1px 2px rgba(13,30,66,.05);
  --sh-sm: 0 2px 8px rgba(13,30,66,.06);
  --sh-md: 0 8px 24px rgba(13,30,66,.08);
  --sh-lg: 0 24px 60px rgba(13,30,66,.12);
  --sh-blue: 0 12px 30px rgba(30,111,230,.30);

  /* Layout */
  --maxw: 1200px;
  --nav-h: 68px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 16px); }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  color: var(--heading);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0;
  text-wrap: balance;
}

p { margin: 0; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { margin: 0; padding: 0; list-style: none; }

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; }
.section--soft { background: var(--bg-soft); }
.section-head { max-width: 680px; margin: 0 auto 56px; text-align: center; }
.section-head.left { margin-left: 0; text-align: left; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--blue-600);
  margin-bottom: 16px;
}
.eyebrow::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--brand-grad);
}

.section-head h2 {
  font-size: clamp(30px, 4vw, 42px);
}
.section-head p {
  margin-top: 16px;
  font-size: 18px;
  color: var(--muted);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  padding: 13px 22px;
  border-radius: var(--r-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s var(--ease), box-shadow .2s var(--ease), background .2s, border-color .2s, color .2s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--brand-grad);
  color: #fff;
  box-shadow: var(--sh-blue);
}
.btn-primary:hover { box-shadow: 0 16px 36px rgba(30,111,230,.4); transform: translateY(-1px); }

.btn-ghost {
  background: var(--white);
  color: var(--heading);
  border-color: var(--border-strong);
  box-shadow: var(--sh-xs);
}
.btn-ghost:hover { border-color: var(--blue-500); color: var(--blue-600); }

.btn-soft {
  background: var(--slate-100);
  color: var(--heading);
}
.btn-soft:hover { background: var(--slate-200); }

.btn-lg { padding: 16px 28px; font-size: 16px; border-radius: var(--r-lg); }
.btn-block { width: 100%; }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-h);
  background: rgba(255,255,255,.82);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s, box-shadow .2s;
}
.nav.scrolled { border-color: var(--border); box-shadow: var(--sh-xs); }
.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand { display: flex; align-items: center; gap: 11px; font-weight: 600; }
.brand-mark {
  width: 34px; height: 34px;
  border-radius: 9px;
  background: var(--brand-grad);
  display: grid; place-items: center;
  color: #fff;
  font-weight: 700;
  font-size: 18px;
  box-shadow: var(--sh-sm);
}
.brand-name { font-size: 19px; color: var(--heading); letter-spacing: -0.02em; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 8px;
}
.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--slate-600);
  padding: 8px 14px;
  border-radius: var(--r-sm);
  transition: color .15s, background .15s;
}
.nav-links a:hover { color: var(--heading); background: var(--slate-100); }

.nav-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }

/* Lang toggle */
.lang {
  display: inline-flex;
  align-items: center;
  background: var(--slate-100);
  border-radius: var(--r-pill);
  padding: 3px;
  border: 1px solid var(--border);
}
.lang button {
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  color: var(--slate-500);
  background: transparent;
  border: none;
  padding: 6px 12px;
  border-radius: var(--r-pill);
  cursor: pointer;
  transition: color .15s, background .15s, box-shadow .15s;
}
.lang button.active {
  color: var(--heading);
  background: var(--white);
  box-shadow: var(--sh-xs);
}

.nav-toggle {
  display: none;
  background: none; border: none;
  width: 40px; height: 40px;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  align-items: center;
  justify-content: center;
}
.nav-toggle span {
  display: block; width: 20px; height: 2px;
  background: var(--heading); border-radius: 2px;
  transition: transform .2s, opacity .2s;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  padding: 84px 0 92px;
  overflow: hidden;
  background:
    radial-gradient(900px 500px at 80% -10%, rgba(43,196,224,.12), transparent 60%),
    radial-gradient(700px 500px at 8% 0%, rgba(30,111,230,.10), transparent 55%),
    var(--white);
}
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(700px 400px at 50% 0%, #000, transparent 75%);
          mask-image: radial-gradient(700px 400px at 50% 0%, #000, transparent 75%);
  opacity: .5;
  pointer-events: none;
}
.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  padding: 6px 14px 6px 8px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--slate-600);
  box-shadow: var(--sh-xs);
  margin-bottom: 24px;
}
.pill .tag {
  font-size: 11px; font-weight: 700;
  letter-spacing: .04em;
  color: var(--green-700);
  background: var(--green-100);
  padding: 3px 8px;
  border-radius: var(--r-pill);
}

.hero h1 {
  font-size: clamp(38px, 5.2vw, 60px);
  line-height: 1.04;
  letter-spacing: -0.03em;
}
.hero h1 .grad {
  background: var(--brand-grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero .lede {
  margin-top: 22px;
  font-size: 19px;
  line-height: 1.6;
  color: var(--slate-600);
  max-width: 540px;
}
.hero-cta { margin-top: 32px; display: flex; gap: 14px; flex-wrap: wrap; }

.hero-trust {
  margin-top: 34px;
  display: flex;
  gap: 26px;
  flex-wrap: wrap;
}
.hero-trust li {
  display: flex; align-items: center; gap: 9px;
  font-size: 14.5px; font-weight: 500; color: var(--slate-600);
}
.hero-trust .ck {
  width: 20px; height: 20px; flex: none;
  border-radius: 50%;
  background: var(--green-50);
  color: var(--green-600);
  display: grid; place-items: center;
}
.hero-trust .ck svg { width: 12px; height: 12px; }

/* ---------- Product mock (file manager) ---------- */
.mock-wrap { position: relative; }
.mock-glow {
  position: absolute; inset: -8% -6% -12% -6%;
  background: var(--brand-grad);
  filter: blur(60px);
  opacity: .16;
  border-radius: 40px;
  z-index: 0;
}
.mock {
  position: relative;
  z-index: 1;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  box-shadow: var(--sh-lg);
  overflow: hidden;
}
.mock-top {
  display: flex; align-items: center; gap: 14px;
  padding: 13px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--slate-50);
}
.dots { display: flex; gap: 7px; }
.dots i { width: 11px; height: 11px; border-radius: 50%; background: var(--slate-300); }
.mock-search {
  flex: 1;
  display: flex; align-items: center; gap: 8px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  padding: 6px 14px;
  font-size: 13px;
  color: var(--slate-400);
}
.mock-search svg { width: 14px; height: 14px; }
.mock-body { display: grid; grid-template-columns: 168px 1fr; min-height: 360px; }
.mock-side {
  border-right: 1px solid var(--border);
  padding: 16px 12px;
  background: var(--slate-50);
}
.mock-side .sgroup { font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--slate-400); padding: 0 8px; margin: 4px 0 8px; }
.mock-side a {
  display: flex; align-items: center; gap: 9px;
  font-size: 13.5px; font-weight: 500; color: var(--slate-600);
  padding: 8px 10px; border-radius: var(--r-sm);
  margin-bottom: 2px;
}
.mock-side a.on { background: rgba(30,111,230,.10); color: var(--blue-700); }
.mock-side a svg { width: 16px; height: 16px; opacity: .8; }
.mock-meter { margin: 16px 4px 0; }
.mock-meter .bar { height: 7px; border-radius: 99px; background: var(--slate-200); overflow: hidden; }
.mock-meter .bar i { display: block; height: 100%; width: 64%; background: var(--brand-grad); border-radius: 99px; }
.mock-meter .lbl { font-size: 11.5px; color: var(--slate-500); margin-top: 7px; }
.mock-meter .lbl b { color: var(--heading); font-family: var(--font-mono); font-weight: 600; }

.mock-main { padding: 16px 18px; }
.mock-crumb { font-size: 13px; color: var(--slate-500); margin-bottom: 14px; }
.mock-crumb b { color: var(--heading); }
.mock-folders { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; margin-bottom: 16px; }
.mfolder {
  border: 1px solid var(--border); border-radius: var(--r-md);
  padding: 12px; background: var(--white);
  display: flex; flex-direction: column; gap: 10px;
}
.mfolder .ic { width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center; color: #fff; }
.mfolder .ic svg { width: 17px; height: 17px; }
.mfolder .nm { font-size: 13px; font-weight: 600; color: var(--heading); }
.mfolder .mt { font-size: 11.5px; color: var(--slate-400); font-family: var(--font-mono); }

.mock-files { border: 1px solid var(--border); border-radius: var(--r-md); overflow: hidden; }
.mfile { display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 12px; padding: 10px 14px; border-bottom: 1px solid var(--border); font-size: 13px; }
.mfile:last-child { border-bottom: none; }
.mfile .fn { display: flex; align-items: center; gap: 10px; font-weight: 500; color: var(--heading); }
.mfile .ft { width: 26px; height: 26px; border-radius: 7px; display: grid; place-items: center; font-size: 10px; font-weight: 700; color: #fff; font-family: var(--font-mono); }
.mfile .sz, .mfile .dt { font-family: var(--font-mono); font-size: 12px; color: var(--slate-400); }

/* ---------- logo strip ---------- */
.logos { padding: 40px 0 8px; }
.logos p { text-align: center; font-size: 13px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--slate-400); margin-bottom: 26px; }
.logos-row { display: flex; align-items: center; justify-content: center; gap: 52px; flex-wrap: wrap; }
.logos-row span { font-size: 21px; font-weight: 700; color: var(--slate-300); letter-spacing: -0.02em; }

/* ============================================================
   FEATURES
   ============================================================ */
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feat {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 28px;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s;
}
.feat:hover { transform: translateY(-3px); box-shadow: var(--sh-md); border-color: var(--border-strong); }
.feat .ic {
  width: 48px; height: 48px;
  border-radius: var(--r-md);
  display: grid; place-items: center;
  margin-bottom: 18px;
  background: rgba(30,111,230,.1);
  color: var(--blue-600);
}
.feat .ic svg { width: 23px; height: 23px; }
.feat h3 { font-size: 19px; margin-bottom: 9px; }
.feat p { font-size: 15px; color: var(--muted); line-height: 1.55; }

/* ============================================================
   PRICING
   ============================================================ */
.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.plan {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 26px;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s;
}
.plan:hover { box-shadow: var(--sh-md); transform: translateY(-3px); }
.plan.featured {
  border-color: transparent;
  box-shadow: 0 0 0 2px var(--blue-500), var(--sh-md);
}
.plan-tag {
  position: absolute; top: -12px; left: 26px;
  background: var(--brand-grad);
  color: #fff; font-size: 12px; font-weight: 700;
  letter-spacing: .03em;
  padding: 5px 13px; border-radius: var(--r-pill);
  box-shadow: var(--sh-blue);
}
.plan-eyebrow { font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--slate-400); }
.plan-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-top: 10px; }
.plan-name { font-size: 24px; }
.plan-slug { font-family: var(--font-mono); font-size: 12.5px; color: var(--slate-400); margin-top: 4px; }
.plan-medal { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; flex: none; }
.plan-medal svg { width: 20px; height: 20px; color: #fff; }
.plan-desc { font-size: 14px; color: var(--muted); margin-top: 14px; min-height: 42px; line-height: 1.5; }

.plan-specs { margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--border); display: grid; gap: 0; }
.spec { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--border); }
.spec:last-child { border-bottom: none; }
.spec .k { font-size: 14px; color: var(--slate-600); }
.spec .v { font-family: var(--font-mono); font-size: 14.5px; font-weight: 600; color: var(--heading); font-variant-numeric: tabular-nums; }
.spec .v.hl { color: var(--blue-600); }

.plan-cta { margin-top: 22px; }

/* ============================================================
   COMPARISON TABLE
   ============================================================ */
.cmp-scroll { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--white); box-shadow: var(--sh-sm); }
table.cmp { width: 100%; border-collapse: collapse; min-width: 880px; }
table.cmp th, table.cmp td { padding: 16px 18px; text-align: center; border-bottom: 1px solid var(--border); }
table.cmp thead th { position: sticky; top: 0; background: var(--slate-50); }
table.cmp th.feature, table.cmp td.feature { text-align: left; font-weight: 600; color: var(--heading); }
table.cmp thead .pn { font-size: 16px; color: var(--heading); font-weight: 600; }
table.cmp thead .ps { font-family: var(--font-mono); font-size: 11.5px; color: var(--slate-400); font-weight: 500; display: block; margin-top: 2px; }
table.cmp col.col-feat { width: 22%; }
table.cmp tbody td { font-family: var(--font-mono); font-size: 14px; color: var(--slate-700); font-variant-numeric: tabular-nums; }
table.cmp tbody tr:last-child td { border-bottom: none; }
table.cmp tbody tr:hover td { background: var(--slate-50); }
table.cmp th.hot { background: rgba(30,111,230,.08); color: var(--blue-700); }
table.cmp td.dash { color: var(--slate-300); }
.cmp-check { color: var(--green-600); }

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.quotes { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.quote {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 28px;
  display: flex; flex-direction: column;
}
.quote .stars { color: #f5a623; font-size: 15px; letter-spacing: 2px; margin-bottom: 14px; }
.quote p { font-size: 16px; line-height: 1.6; color: var(--slate-700); }
.quote .who { margin-top: 22px; display: flex; align-items: center; gap: 12px; }
.quote .av { width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center; color: #fff; font-weight: 700; font-size: 15px; flex: none; }
.quote .who b { display: block; font-size: 14.5px; color: var(--heading); }
.quote .who span { font-size: 13px; color: var(--muted); }

/* ============================================================
   FAQ
   ============================================================ */
.faq-wrap { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-q {
  width: 100%; text-align: left;
  background: none; border: none; cursor: pointer;
  font-family: inherit;
  font-size: 18px; font-weight: 600; color: var(--heading);
  padding: 24px 44px 24px 0;
  position: relative;
  display: flex; align-items: center;
}
.faq-q .pm { position: absolute; right: 4px; top: 50%; transform: translateY(-50%); width: 24px; height: 24px; transition: transform .25s var(--ease); color: var(--blue-600); }
.faq-item.open .faq-q .pm { transform: translateY(-50%) rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s var(--ease); }
.faq-a p { padding: 0 44px 24px 0; font-size: 16px; color: var(--muted); line-height: 1.6; }

/* ============================================================
   CTA + FOOTER
   ============================================================ */
.cta-band { padding: 32px 0 96px; }
.cta-box {
  position: relative;
  overflow: hidden;
  background: var(--brand-grad);
  border-radius: var(--r-xl);
  padding: 64px 56px;
  text-align: center;
  color: #fff;
  box-shadow: var(--sh-blue);
}
.cta-box::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.12) 1px, transparent 1px);
  background-size: 40px 40px;
  -webkit-mask-image: radial-gradient(600px 300px at 50% 120%, #000, transparent 70%);
          mask-image: radial-gradient(600px 300px at 50% 120%, #000, transparent 70%);
}
.cta-box > * { position: relative; }
.cta-box h2 { color: #fff; font-size: clamp(28px, 4vw, 40px); }
.cta-box p { margin: 16px auto 0; max-width: 520px; color: rgba(255,255,255,.9); font-size: 18px; }
.cta-box .hero-cta { justify-content: center; margin-top: 30px; }
.cta-box .btn-white { background: #fff; color: var(--blue-700); }
.cta-box .btn-white:hover { transform: translateY(-1px); box-shadow: 0 16px 36px rgba(0,0,0,.18); }
.cta-box .btn-line { background: rgba(255,255,255,.12); color: #fff; border-color: rgba(255,255,255,.4); }
.cta-box .btn-line:hover { background: rgba(255,255,255,.2); }

.footer { background: var(--slate-900); color: var(--slate-400); padding: 64px 0 32px; }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 44px; border-bottom: 1px solid rgba(255,255,255,.08); }
.footer .brand-name { color: #fff; }
.footer-blurb { margin-top: 16px; font-size: 14.5px; line-height: 1.6; max-width: 300px; }
.footer h4 { color: #fff; font-size: 14px; letter-spacing: .04em; text-transform: uppercase; margin-bottom: 16px; }
.footer-col a { display: block; font-size: 14.5px; color: var(--slate-400); padding: 6px 0; transition: color .15s; }
.footer-col a:hover { color: #fff; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 28px; font-size: 13.5px; flex-wrap: wrap; }
.footer-bottom .soc { display: flex; gap: 10px; }
.footer-bottom .soc a { width: 36px; height: 36px; border-radius: 9px; display: grid; place-items: center; background: rgba(255,255,255,.06); color: var(--slate-300); transition: background .15s, color .15s; }
.footer-bottom .soc a:hover { background: rgba(255,255,255,.14); color: #fff; }
.footer-bottom .soc svg { width: 17px; height: 17px; }

/* ---------- scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1080px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .mock-wrap { max-width: 560px; }
  .feat-grid, .price-grid, .quotes { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .section { padding: 68px 0; }
  .hero { padding: 56px 0 64px; }
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav.open .nav-links {
    display: flex; flex-direction: column; align-items: stretch;
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--border);
    padding: 12px 20px 20px; gap: 2px; box-shadow: var(--sh-md);
  }
  .feat-grid, .price-grid, .quotes { grid-template-columns: 1fr; }
  .hero h1 { font-size: clamp(32px, 9vw, 44px); }
  .cta-box { padding: 44px 26px; }
  .section-head { margin-bottom: 40px; }
  .container { padding: 0 18px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 28px; }
}
@media (max-width: 460px) {
  .hero-cta .btn { width: 100%; }
  .mock-body { grid-template-columns: 1fr; }
  .mock-side { display: none; }
  .footer-top { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
}

/* ============================================================
   Webtui.vn — bổ sung (logo thật, giá VNĐ, add-on)
   ============================================================ */

/* Logo thương hiệu (hình lục giác) thay cho ký tự "W" */
.brand-logo {
  width: 36px; height: 36px;
  object-fit: contain;
  display: block;
  flex: none;
}
.footer .brand-logo { width: 34px; height: 34px; }

/* Giá trên thẻ gói */
.plan-price {
  margin-top: 16px;
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}
.plan-price .amt {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 32px;
  letter-spacing: -0.02em;
  color: var(--heading);
  line-height: 1;
}
.plan-price .per { font-size: 14px; color: var(--muted); }
.plan-price .free { color: var(--green-600); }
.featured .plan-price .amt { color: var(--blue-600); }

/* Hàng giá trong bảng so sánh */
table.cmp tbody tr.row-price td { font-weight: 600; color: var(--heading); }
table.cmp tbody tr.row-price td.free { color: var(--green-600); }

/* Khối Add-on */
.addons {
  margin-top: 40px;
  border: 1px dashed var(--border-strong);
  border-radius: var(--r-lg);
  background: var(--white);
  padding: 26px 28px;
}
.addons h3 {
  font-size: 18px;
  margin-bottom: 4px;
}
.addons .sub { font-size: 14px; color: var(--muted); margin-bottom: 18px; }
.addons-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.addon {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--slate-50);
}
.addon .nm { font-size: 14px; font-weight: 500; color: var(--heading); }
.addon .pr { font-family: var(--font-mono); font-weight: 600; font-size: 14px; color: var(--blue-600); white-space: nowrap; }
.addon .pr span { color: var(--muted); font-weight: 400; font-size: 12px; }
@media (max-width: 1080px) { .addons-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  { .addons-grid { grid-template-columns: 1fr; } }