/* tekocenter.site — trang chào của Tekovate (src/landing.js phục vụ). Màu + font theo bộ nhận diện Tekovate 2026. */
:root {
  --blue: #1F3ECA;
  --blue-deep: #172FA3;
  --cyan: #66D7CF;
  --violet: #584FC7;
  --lav: #8F8FEC;
  --ink: #0F1A4D;
  --ink-2: #44507F;
  --paper: #F4F6FE;
  --white: #fff;
  --rule: rgba(15, 26, 77, .13);
  --ease: cubic-bezier(.16, 1, .3, 1);
  --head: "Be Vietnam Pro", "Manrope", system-ui, sans-serif;
  --body: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
  color-scheme: light;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 1rem/1.6 var(--body); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
img, svg { display: block; }
a { color: inherit; text-underline-offset: .2em; text-decoration-thickness: 1px; }
::selection { background: var(--cyan); color: var(--ink); }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3 { font-family: var(--head); text-wrap: balance; margin: 0; }
p { margin: 0; text-wrap: pretty; }
.wrap { width: 100%; max-width: 1240px; margin-inline: auto; padding-inline: max(16px, env(safe-area-inset-left)) max(16px, env(safe-area-inset-right)); }
@media (min-width: 720px) { .wrap { padding-inline: 40px; } }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 16px; top: -60px; z-index: 10; background: var(--white); color: var(--blue); padding: 10px 14px; border-radius: 8px; font-weight: 600; }
.skip:focus { top: 12px; }

/* ---------- Hero ---------- */
.hero { position: relative; background: var(--blue); color: var(--white); overflow: hidden; isolation: isolate; padding-bottom: 40px; }
.hero ::selection { background: var(--white); color: var(--blue); }
.hero :focus-visible { outline-color: var(--cyan); }
.field { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; pointer-events: none; }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 22px; }
.brand img { width: 132px; height: auto; }
@media (min-width: 720px) { .brand img { width: 156px; } .bar { padding-top: 30px; } }
.lang { display: none; gap: 2px; padding: 3px; border-radius: 999px; background: rgba(255, 255, 255, .1); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .18); }
.js .lang { display: flex; }
.lang button { font: 600 .8125rem/1 var(--body); letter-spacing: .02em; color: rgba(255, 255, 255, .82); background: transparent; border: 0; border-radius: 999px; min-width: 44px; min-height: 36px; padding: 0 10px; cursor: pointer; transition: background-color .25s var(--ease), color .25s var(--ease); }
.lang button:hover { color: var(--white); background: rgba(255, 255, 255, .12); }
.lang button[aria-pressed="true"] { background: var(--white); color: var(--blue); }

.stage { display: grid; gap: 8px; padding-top: 28px; }
.intro { position: relative; z-index: 1; max-width: 40rem; }
.slogan { font: 600 .95rem/1.4 var(--body); color: var(--cyan); letter-spacing: .01em; margin-bottom: 14px; }
h1 { font-weight: 700; font-size: clamp(3.1rem, 13.5vw, 6rem); line-height: .94; letter-spacing: -.04em; margin-bottom: 22px; }
.lead { font-size: 1.125rem; line-height: 1.55; color: rgba(255, 255, 255, .9); max-width: 34ch; }
.mark { order: -1; width: 92px; height: 132px; margin-bottom: 8px; }
.mark-svg { width: 100%; height: 100%; }
.cv .mark-svg { visibility: hidden; }
@media (min-width: 900px) {
  .hero { min-height: min(100vh, 880px); display: flex; flex-direction: column; padding-bottom: 56px; }
  .stage { grid-template-columns: 1.15fr .85fr; align-items: center; flex: 1; padding-top: 24px; padding-bottom: 32px; }
  .mark { order: 0; width: auto; height: min(52vh, 440px); aspect-ratio: 361 / 520; justify-self: center; margin: 0; }
  .lead { font-size: 1.25rem; }
  .slogan { font-size: 1.05rem; }
}

/* Lối vào */
.doors { display: grid; gap: 14px; position: relative; z-index: 1; margin-top: 28px; }
@media (min-width: 720px) { .doors { grid-template-columns: 1fr 1fr; gap: 20px; } }
.door { position: relative; display: grid; align-content: start; gap: 6px; padding: 24px 24px 22px; border-radius: 22px; background: var(--white); color: var(--ink); text-decoration: none; overflow: hidden;
  box-shadow: 0 1px 0 rgba(255, 255, 255, .6) inset, 0 10px 30px -14px rgba(5, 14, 70, .55);
  transition: transform .45s var(--ease), box-shadow .45s var(--ease); }
@media (min-width: 900px) { .door { padding: 30px 32px 28px; } }
.door-icon { width: 32px; height: 32px; fill: none; stroke: var(--blue); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 10px; }
.door-who { font: 600 .9375rem/1.3 var(--body); color: var(--violet); }
.door-act { display: flex; align-items: center; gap: 12px; font: 700 clamp(1.4rem, 5.6vw, 1.9rem)/1.15 var(--head); letter-spacing: -.02em; color: var(--blue); }
.arrow { width: 26px; height: 26px; flex: none; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; transition: transform .45s var(--ease); }
.door-note { font-size: .9375rem; color: var(--ink-2); max-width: 46ch; }
.door-dots { position: absolute; right: -10px; top: -10px; width: 128px; height: 108px; opacity: .55; pointer-events: none;
  background:
    radial-gradient(circle, var(--lav) 2.4px, transparent 2.9px) 0 0 / 22px 22px,
    radial-gradient(circle, var(--cyan) 2.4px, transparent 2.9px) 11px 11px / 22px 22px;
  -webkit-mask: linear-gradient(225deg, #000 20%, transparent 70%); mask: linear-gradient(225deg, #000 20%, transparent 70%);
  transition: transform .6s var(--ease), opacity .6s var(--ease); }
@media (hover: hover) {
  .door:hover { transform: translateY(-4px); box-shadow: 0 1px 0 rgba(255, 255, 255, .6) inset, 0 26px 50px -18px rgba(5, 14, 70, .7); }
  .door:hover .arrow { transform: translateX(6px); }
  .door:hover .door-dots { transform: translate(-8px, 8px); opacity: .9; }
}
.door:active { transform: scale(.985); transition-duration: .15s; }
.door:focus-visible { outline: 3px solid var(--cyan); outline-offset: 4px; border-radius: 22px; }

/* Dải chuyển màu + hoạ tiết chấm zig-zag */
.band { height: 64px;
  background:
    radial-gradient(circle, rgba(255, 255, 255, .5) 1.8px, transparent 2.3px) 0 0 / 20px 20px,
    radial-gradient(circle, rgba(255, 255, 255, .5) 1.8px, transparent 2.3px) 10px 10px / 20px 20px,
    linear-gradient(90deg, var(--cyan), var(--blue) 50%, var(--lav)); }
@media (min-width: 900px) { .band { height: 88px; } }

/* ---------- Sản phẩm ---------- */
.eco { padding-top: 64px; padding-bottom: 56px; }
@media (min-width: 900px) { .eco { padding-top: 104px; padding-bottom: 80px; } }
.eco-head { display: grid; gap: 14px; margin-bottom: 40px; }
@media (min-width: 900px) { .eco-head { grid-template-columns: 1fr 1fr; align-items: end; gap: 48px; margin-bottom: 56px; } }
.eco-head h2 { font-size: clamp(2rem, 7vw, 3.4rem); line-height: 1.02; letter-spacing: -.035em; color: var(--ink); }
.eco-head p { font-size: 1.0625rem; color: var(--ink-2); max-width: 46ch; }
.brands { list-style: none; margin: 0; padding: 0; display: grid; gap: 0 40px; }
@media (min-width: 640px) { .brands { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1000px) { .brands { grid-template-columns: repeat(3, 1fr); } }
.b { position: relative; padding: 22px 0 28px; border-top: 1px solid var(--rule); display: grid; gap: 6px; align-content: start; }
.b::before { content: ""; position: absolute; top: -1px; left: 0; width: 44px; height: 3px; background: var(--c); border-radius: 0 0 3px 3px; transform-origin: left; transition: transform .7s var(--ease) .15s; }
.b h3 { font-size: 1.45rem; letter-spacing: -.02em; color: var(--ink); }
.b p { color: var(--ink-2); max-width: 38ch; }
.b a { justify-self: start; display: inline-flex; align-items: center; gap: 4px; margin-top: 6px; font-weight: 600; font-size: .9375rem; color: var(--blue); text-decoration: none; padding: 4px 0; }
.b a:hover { text-decoration: underline; }
.b a svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; transition: transform .35s var(--ease); }
.b a:hover svg { transform: translate(2px, -2px); }
@media (prefers-reduced-motion: no-preference) {
  .js .b.pre { opacity: 0; transform: translateY(16px); }
  .js .b.pre::before { transform: scaleX(0); }
  .js .b { transition: opacity .7s var(--ease) var(--delay, 0s), transform .7s var(--ease) var(--delay, 0s); }
}

/* ---------- Công ty ---------- */
.co { display: grid; gap: 28px; padding-top: 40px; padding-bottom: 48px; border-top: 1px solid var(--rule); }
@media (min-width: 900px) { .co { grid-template-columns: 220px 1fr; gap: 48px; padding-top: 56px; } }
.co-logo { width: 168px; height: auto; margin-top: 4px; }
.facts { display: grid; gap: 22px 32px; margin: 0; }
@media (min-width: 560px) { .facts { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1100px) { .facts { grid-template-columns: repeat(4, auto); justify-content: space-between; } }
.facts dt { font-size: .875rem; color: var(--ink-2); margin-bottom: 4px; }
.facts dd { margin: 0; font-weight: 600; line-height: 1.5; }
.facts a { color: var(--blue); }
.num { font-variant-numeric: tabular-nums; }

.foot { display: flex; justify-content: space-between; gap: 16px; padding-top: 20px; padding-bottom: max(28px, env(safe-area-inset-bottom)); font-size: .875rem; color: var(--ink-2); border-top: 1px solid var(--rule); }
.foot a { color: var(--ink-2); }

/* Màn hình chờ: chữ lên sau khi chấm tụ thành biểu tượng (≤1,2 giây). Mặc định luôn hiện. */
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: no-preference) {
  .js .intro > *, .js .door { animation: rise .8s var(--ease) backwards; }
  .js .slogan { animation-delay: .3s; }
  .js h1 { animation-delay: .38s; }
  .js .lead { animation-delay: .46s; }
  .js .door:nth-child(1) { animation-delay: .54s; }
  .js .door:nth-child(2) { animation-delay: .62s; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition-duration: .01ms !important; } }