/* Landing page (public homepage) — light "white + blue" product page for the
   pix4ks API platform. This file is loaded ONLY by html/index.html, so the body
   theme override here never touches the dark admin/quota UIs.
   All classes are prefixed lp- and colors come from the --lp-* tokens below. */

/* ── Light theme tokens (scoped to the landing tree) ─────────────────────── */
.lp {
  --lp-bg: #ffffff;
  --lp-bg-soft: #f4f8ff;     /* very light blue wash */
  --lp-bg-alt: #eaf1fe;
  --lp-surface: #ffffff;
  --lp-border: #e4ecf7;
  --lp-border-strong: #cfddf3;

  --lp-text: #0e1c38;        /* deep navy — headings/body */
  --lp-text-2: #38496a;      /* slate — secondary */
  --lp-text-3: #55637d;      /* muted — captions (AA on white: ~6:1) */

  --lp-blue: #2563eb;        /* primary */
  --lp-blue-500: #3b82f6;
  --lp-blue-700: #1d4ed8;
  --lp-indigo: #4f46e5;
  --lp-cyan: #06b6d4;
  --lp-sky: #38bdf8;
  --lp-blue-050: #eff5ff;
  --lp-blue-100: #dbe8ff;

  --lp-shadow-sm: 0 2px 8px rgba(15, 40, 90, .06);
  --lp-shadow-md: 0 12px 28px rgba(28, 74, 168, .12);
  --lp-shadow-lg: 0 28px 64px rgba(28, 74, 168, .18);
  --lp-shadow-blue: 0 14px 34px rgba(37, 99, 235, .32);

  --lp-radius: 16px;
  --lp-radius-sm: 10px;
  --lp-maxw: 1180px;

  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow-x: clip;
  color: var(--lp-text);
  font-size: 16px;
  line-height: 1.6;
}

/* Repaint the shared body/base for the landing page. This stylesheet is loaded
   ONLY by index.html, so overriding body unconditionally is safe and avoids a
   flash of the dark base theme before .lp mounts (no :has() dependency). */
html:has(#app), body { background: #ffffff; color: var(--lp-text, #0e1c38); }
.lp a { color: var(--lp-blue-700); }
.lp a:hover { text-decoration: none; }
.lp ::selection { background: var(--lp-blue-100); color: var(--lp-blue-700); }

/* ── Keyframes ───────────────────────────────────────────────────────────── */
@keyframes lp-aurora   { from { transform: translate3d(0,0,0) scale(1); } to { transform: translate3d(0,-4%,0) scale(1.08); } }
@keyframes lp-float    { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }
@keyframes lp-float-sm { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
@keyframes lp-grad     { 0%,100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }
@keyframes lp-flow     { from { background-position: -40% 0; } to { background-position: 140% 0; } }
@keyframes lp-flow-y   { from { background-position: 0 -40%; } to { background-position: 0 140%; } }
@keyframes lp-pulse    { 0% { box-shadow: 0 0 0 0 rgba(37,99,235,.45); } 70% { box-shadow: 0 0 0 12px rgba(37,99,235,0); } 100% { box-shadow: 0 0 0 0 rgba(37,99,235,0); } }
@keyframes lp-blink    { 0%,100% { opacity: 1; } 50% { opacity: .35; } }
@keyframes lp-shimmer  { from { transform: translateX(-120%); } to { transform: translateX(220%); } }
@keyframes lp-fill     { from { width: 8%; } to { width: 100%; } }
@keyframes lp-spin     { to { transform: rotate(360deg); } }
@keyframes lp-dot      { 0% { left: -6%; opacity: 0; } 12% { opacity: 1; } 88% { opacity: 1; } 100% { left: 102%; opacity: 0; } }
@keyframes lp-dot-y    { 0% { top: -6%; opacity: 0; } 12% { opacity: 1; } 88% { opacity: 1; } 100% { top: 102%; opacity: 0; } }
@keyframes lp-rise     { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }

/* ── Scroll reveal (JS adds .reveal, then .is-visible when in view) ───────── */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); will-change: opacity, transform; }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; } .reveal.d2 { transition-delay: .16s; } .reveal.d3 { transition-delay: .24s; } .reveal.d4 { transition-delay: .32s; }

/* Respect reduced-motion: kill loops + reveal instantly. */
@media (prefers-reduced-motion: reduce) {
  .lp *, .lp *::before, .lp *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
}

/* ── Top navigation ──────────────────────────────────────────────────────── */
.lp-nav { position: sticky; top: 0; z-index: 50; transition: background .25s, box-shadow .25s, border-color .25s; border-bottom: 1px solid transparent; }
.lp-nav.scrolled { background: rgba(255,255,255,.82); backdrop-filter: saturate(150%) blur(12px); border-bottom-color: var(--lp-border); box-shadow: var(--lp-shadow-sm); }
.lp-nav-inner { max-width: var(--lp-maxw); margin: 0 auto; padding: 15px 24px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.lp-brand { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 18px; color: var(--lp-text); letter-spacing: -.01em; }
.lp-brand .lp-logo { width: 34px; height: 34px; border-radius: 10px; background: linear-gradient(135deg, var(--lp-blue-500), var(--lp-indigo)); display: grid; place-items: center; color: #fff; font-weight: 800; box-shadow: var(--lp-shadow-blue); }
.lp-logo-img { height: 32px; width: auto; display: block; }
.lp-logo-img.footer { height: 24px; }

/* Navbar account menu (shown when signed in, replaces the login button). */
.lp-user { position: relative; }
.lp-user-trigger { display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 12px 0 8px; border: 1px solid var(--lp-border-strong); border-radius: 999px; background: var(--lp-surface); color: var(--lp-text); font: inherit; font-weight: 700; cursor: pointer; transition: border-color .15s, box-shadow .15s; }
.lp-user-trigger:hover { border-color: var(--lp-blue-500); box-shadow: var(--lp-shadow-sm); }
.lp-user-avatar { width: 26px; height: 26px; flex: none; display: grid; place-items: center; border-radius: 999px; background: var(--lp-blue-050); color: var(--lp-blue); }
.lp-user-avatar svg { width: 16px; height: 16px; }
.lp-user-name { max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 14px; }
.lp-user-arrow { width: 16px; height: 16px; color: var(--lp-text-3); transition: transform .2s; }
.lp-user.open .lp-user-arrow { transform: rotate(180deg); }
.lp-user-menu { position: absolute; top: calc(100% + 8px); right: 0; min-width: 220px; padding: 8px; border: 1px solid var(--lp-border); border-radius: 14px; background: var(--lp-surface); box-shadow: var(--lp-shadow-md); opacity: 0; visibility: hidden; transform: translateY(-6px); transition: opacity .18s, transform .18s, visibility .18s; z-index: 60; }
.lp-user.open .lp-user-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.lp-user-head { padding: 8px 10px 10px; font-size: 13px; font-weight: 700; color: var(--lp-text-3); word-break: break-all; border-bottom: 1px solid var(--lp-border); margin-bottom: 6px; }
.lp-user-item { display: flex; align-items: center; gap: 10px; padding: 10px 10px; border-radius: 9px; color: var(--lp-text-2); font-size: 14px; font-weight: 600; text-decoration: none; }
.lp-user-item:hover { background: var(--lp-blue-050); color: var(--lp-blue-700); }
.lp-user-item.danger { color: #dc2626; }
.lp-user-item.danger:hover { background: #fef2f2; color: #dc2626; }
.lp-user-ic { width: 18px; height: 18px; flex: none; }
.lp-nav-links { display: flex; align-items: center; gap: 6px; }
.lp-nav-links a { color: var(--lp-text-2); padding: 9px 14px; border-radius: 999px; font-size: 15px; font-weight: 600; transition: color .15s, background .15s; }
.lp-nav-links a:hover { color: var(--lp-blue-700); background: var(--lp-blue-050); }

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.lp-btn { display: inline-flex; align-items: center; gap: 9px; padding: 12px 22px; border-radius: 999px; border: 1px solid var(--lp-border-strong); background: var(--lp-surface); color: var(--lp-text); font-size: 15px; font-weight: 700; cursor: pointer; transition: transform .12s, box-shadow .2s, border-color .2s, background .2s; }
.lp-btn svg { width: 18px; height: 18px; }
.lp-btn:hover { transform: translateY(-2px); text-decoration: none; box-shadow: var(--lp-shadow-md); }
/* Primary: gradient #2563eb→#1d4ed8; white text ≥5.1:1 on both ends (AA). */
.lp-btn.primary { background: linear-gradient(135deg, var(--lp-blue), var(--lp-blue-700)); border-color: transparent; color: #fff; box-shadow: var(--lp-shadow-blue); }
.lp-btn.primary:hover { box-shadow: 0 18px 40px rgba(37,99,235,.42); }
.lp-btn.ghost { background: var(--lp-surface); color: var(--lp-blue-700); }
.lp-btn.lg { padding: 15px 30px; font-size: 16px; }
/* Arrow span wraps an inline SVG; without flex-centering the icon sits on the
   text baseline and looks vertically offset. inline-flex + center fixes it. */
.lp-btn .lp-arrow { display: inline-flex; align-items: center; justify-content: center; transition: transform .18s; }
.lp-btn:hover .lp-arrow { transform: translateX(3px); }
/* Any inline-SVG icon holder in a button/link stays centered on the text. */
.lp-btn > span, .lp-nav-links a > span, .lp-user-item > span { display: inline-flex; align-items: center; }

/* ── Shared section frame ────────────────────────────────────────────────── */
.lp-section { max-width: var(--lp-maxw); margin: 0 auto; padding: 92px 24px; width: 100%; }
.lp-section.tint { max-width: none; background: linear-gradient(180deg, var(--lp-bg-soft), #fff); border-block: 1px solid var(--lp-border); }
.lp-section.tint > .lp-inner { max-width: var(--lp-maxw); margin: 0 auto; }
.lp-section-head { text-align: center; max-width: 720px; margin: 0 auto 52px; }
.lp-kicker { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px; border: 1px solid var(--lp-blue-100); background: var(--lp-blue-050); color: var(--lp-blue-700); font-size: 13px; font-weight: 700; letter-spacing: .03em; text-transform: uppercase; }
.lp-kicker .lp-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--lp-blue); animation: lp-blink 1.6s ease-in-out infinite; }
.lp-h2 { font-size: clamp(28px, 4vw, 40px); letter-spacing: -.025em; margin: 18px 0 14px; color: var(--lp-text); }
.lp-lead { color: var(--lp-text-2); font-size: 17px; line-height: 1.65; }

.lp-grad { background: linear-gradient(100deg, var(--lp-blue-700), var(--lp-blue-500) 42%, var(--lp-cyan) 70%, var(--lp-indigo)); background-size: 220% 100%; -webkit-background-clip: text; background-clip: text; color: transparent; animation: lp-grad 7s ease-in-out infinite; }

/* ── Hero ────────────────────────────────────────────────────────────────── */
.lp-hero { position: relative; overflow: clip; isolation: isolate; }
/* Aurora blobs (radial-gradients, no images). */
.lp-hero::before { content: ""; position: absolute; inset: -10% -5% auto -5%; height: 780px; z-index: -2; background: radial-gradient(560px 420px at 14% 8%, rgba(59,130,246,.24), transparent 60%), radial-gradient(680px 520px at 88% -2%, rgba(6,182,212,.20), transparent 62%), radial-gradient(520px 520px at 62% 96%, rgba(79,70,229,.16), transparent 60%); animation: lp-aurora 18s ease-in-out infinite alternate; pointer-events: none; }
/* Dot grid, fading toward bottom. */
.lp-hero::after { content: ""; position: absolute; inset: 0; z-index: -1; background-image: radial-gradient(rgba(37,99,235,.14) 1px, transparent 1.4px); background-size: 30px 30px; -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 78%); mask-image: linear-gradient(180deg, #000 0%, transparent 78%); pointer-events: none; }
.lp-hero-inner { max-width: var(--lp-maxw); margin: 0 auto; padding: 80px 24px 92px; display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.lp-hero-copy { max-width: 620px; }
.lp-hero .lp-kicker { animation: lp-rise .6s both; }
.lp-h1 { font-size: clamp(36px, 5.4vw, 60px); line-height: 1.06; letter-spacing: -.035em; margin: 22px 0 20px; color: var(--lp-text); animation: lp-rise .6s .05s both; }
.lp-hero-sub { color: var(--lp-text-2); font-size: clamp(17px, 2vw, 20px); line-height: 1.6; margin-bottom: 30px; animation: lp-rise .6s .12s both; }
.lp-hero-cta { display: flex; gap: 14px; flex-wrap: wrap; animation: lp-rise .6s .18s both; }
.lp-hero-trust { margin-top: 30px; display: flex; gap: 26px; flex-wrap: wrap; color: var(--lp-text-3); font-size: 14px; animation: lp-rise .6s .24s both; }
.lp-hero-trust span { display: inline-flex; align-items: center; gap: 8px; }
.lp-hero-trust .lp-tcheck { color: var(--lp-blue); display: grid; place-items: center; }
.lp-hero-trust .lp-tcheck svg { width: 17px; height: 17px; }
.lp-hero-trust b { color: var(--lp-text); font-weight: 800; }

/* Hero visual — floating API demo card + orbiting chips. */
.lp-hero-visual { position: relative; min-height: 420px; animation: lp-rise .7s .2s both; }
.lp-demo-card { position: relative; z-index: 2; background: var(--lp-surface); border: 1px solid var(--lp-border); border-radius: 18px; box-shadow: var(--lp-shadow-lg); overflow: hidden; animation: lp-float 7s ease-in-out infinite; }
.lp-demo-head { display: flex; align-items: center; gap: 8px; padding: 13px 16px; border-bottom: 1px solid var(--lp-border); background: var(--lp-bg-soft); }
.lp-demo-head .lp-d { width: 11px; height: 11px; border-radius: 50%; }
.lp-demo-head .r { background: #ff6058; } .lp-demo-head .y { background: #ffbd2e; } .lp-demo-head .g { background: #28c840; }
.lp-demo-title { margin-left: 8px; font-family: var(--mono); font-size: 12.5px; color: var(--lp-text-3); }
.lp-demo-body { padding: 18px; font-family: var(--mono); font-size: 13px; line-height: 1.7; }
.lp-demo-line { color: var(--lp-text-2); white-space: pre-wrap; word-break: break-word; }
.lp-demo-line .k { color: var(--lp-blue-700); } .lp-demo-line .s { color: var(--lp-cyan); } .lp-demo-line .m { color: var(--lp-indigo); font-weight: 700; }
.lp-demo-status { display: flex; align-items: center; gap: 9px; margin: 14px 0 12px; padding: 9px 12px; border-radius: 10px; background: var(--lp-blue-050); color: var(--lp-blue-700); font-family: var(--mono); font-size: 12.5px; font-weight: 700; }
.lp-demo-status .lp-live { width: 9px; height: 9px; border-radius: 50%; background: var(--lp-blue); animation: lp-pulse 1.8s infinite; }
.lp-demo-bar { height: 6px; border-radius: 999px; background: var(--lp-bg-alt); overflow: hidden; margin-bottom: 14px; }
.lp-demo-bar i { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--lp-blue-500), var(--lp-cyan)); animation: lp-fill 2.6s ease-in-out infinite alternate; }
.lp-demo-result { position: relative; height: 132px; border-radius: 12px; overflow: hidden; background: linear-gradient(135deg, #dbe8ff, #cbeafe 55%, #dfe7ff); border: 1px solid var(--lp-border); }
.lp-demo-result::before { content: ""; position: absolute; inset: 0; background: linear-gradient(115deg, transparent 30%, rgba(255,255,255,.75) 50%, transparent 70%); transform: translateX(-120%); animation: lp-shimmer 2.8s ease-in-out infinite; }
.lp-demo-result .lp-badge { position: absolute; right: 10px; bottom: 10px; display: inline-flex; align-items: center; gap: 6px; padding: 5px 11px; border-radius: 999px; background: rgba(255,255,255,.9); color: var(--lp-blue-700); font-family: var(--mono); font-size: 11.5px; font-weight: 700; box-shadow: var(--lp-shadow-sm); }
.lp-demo-result .lp-badge .lp-live { width: 8px; height: 8px; border-radius: 50%; background: #22c55e; }
.lp-demo-result .lp-ph { position: absolute; inset: 0; display: grid; place-items: center; color: rgba(37,99,235,.55); }
.lp-demo-result .lp-ph svg { width: 44px; height: 44px; }

.lp-chip-float { position: absolute; z-index: 3; display: inline-flex; align-items: center; gap: 8px; padding: 9px 14px; border-radius: 999px; background: var(--lp-surface); border: 1px solid var(--lp-border); box-shadow: var(--lp-shadow-md); font-size: 13.5px; font-weight: 700; color: var(--lp-text); }
.lp-chip-float svg { width: 16px; height: 16px; }
.lp-chip-float.c1 { top: 6%; right: -4%; color: var(--lp-blue-700); animation: lp-float-sm 5.5s ease-in-out infinite; }
.lp-chip-float.c2 { top: 42%; left: -10%; color: var(--lp-indigo); animation: lp-float 6.5s ease-in-out infinite .3s; }
.lp-chip-float.c3 { bottom: 4%; right: 2%; color: var(--lp-cyan); animation: lp-float-sm 6s ease-in-out infinite .6s; }

/* ── Stats strip ─────────────────────────────────────────────────────────── */
.lp-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; max-width: var(--lp-maxw); margin: -36px auto 0; padding: 0 24px; position: relative; z-index: 5; }
.lp-stat { background: var(--lp-surface); border: 1px solid var(--lp-border); border-radius: var(--lp-radius); padding: 24px 20px; text-align: center; box-shadow: var(--lp-shadow-md); }
.lp-stat-value { font-size: 34px; font-weight: 800; letter-spacing: -.02em; background: linear-gradient(135deg, var(--lp-blue), var(--lp-indigo)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lp-stat-label { color: var(--lp-text-3); font-size: 14px; margin-top: 6px; }

/* ── Feature cards (3 API products) ──────────────────────────────────────── */
.lp-features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.lp-feature { position: relative; background: var(--lp-surface); border: 1px solid var(--lp-border); border-radius: 20px; padding: 30px 26px; overflow: hidden; transition: transform .22s, box-shadow .22s, border-color .22s; }
.lp-feature::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: linear-gradient(90deg, var(--lp-blue-500), var(--lp-cyan)); opacity: 0; transition: opacity .22s; }
.lp-feature:hover { transform: translateY(-6px); box-shadow: var(--lp-shadow-lg); border-color: var(--lp-border-strong); }
.lp-feature:hover::before { opacity: 1; }
.lp-feature-icon { width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center; margin-bottom: 18px; transition: transform .22s; }
.lp-feature:hover .lp-feature-icon { transform: scale(1.06) rotate(-4deg); }
.lp-feature-icon svg { width: 28px; height: 28px; }
.lp-feature-icon.c-blue { background: linear-gradient(135deg, #e0edff, #cfe0ff); color: var(--lp-blue-700); }
.lp-feature-icon.c-cyan { background: linear-gradient(135deg, #d6f3fb, #c7ecfa); color: #0e7490; }
.lp-feature-icon.c-indigo { background: linear-gradient(135deg, #e6e6ff, #dcd9ff); color: var(--lp-indigo); }
.lp-feature h3 { font-size: 21px; margin-bottom: 10px; color: var(--lp-text); letter-spacing: -.01em; }
.lp-feature-desc { color: var(--lp-text-2); font-size: 15px; line-height: 1.6; margin-bottom: 18px; }
.lp-feature-list { list-style: none; display: flex; flex-direction: column; gap: 11px; }
.lp-feature-list li { display: flex; align-items: flex-start; gap: 10px; color: var(--lp-text); font-size: 15px; line-height: 1.5; }
.lp-check { flex: 0 0 auto; margin-top: 2px; width: 20px; height: 20px; border-radius: 50%; background: var(--lp-blue-050); color: var(--lp-blue); display: grid; place-items: center; }
.lp-check svg { width: 13px; height: 13px; }

/* ── Architecture diagram (mô hình) ──────────────────────────────────────── */
.lp-arch { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; gap: 0; align-items: stretch; max-width: 1080px; margin: 0 auto; }
.lp-arch-node { position: relative; background: var(--lp-surface); border: 1px solid var(--lp-border); border-radius: 18px; padding: 24px 20px; text-align: center; box-shadow: var(--lp-shadow-sm); transition: transform .2s, box-shadow .2s; z-index: 2; }
.lp-arch-node:hover { transform: translateY(-4px); box-shadow: var(--lp-shadow-md); }
.lp-arch-ic { width: 52px; height: 52px; margin: 0 auto 14px; border-radius: 14px; display: grid; place-items: center; background: linear-gradient(135deg, var(--lp-blue-050), var(--lp-blue-100)); color: var(--lp-blue-700); }
.lp-arch-ic svg { width: 26px; height: 26px; }
.lp-arch-step { font-size: 12px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--lp-blue); }
.lp-arch-node h4 { font-size: 17px; margin: 4px 0 7px; color: var(--lp-text); }
.lp-arch-node p { font-size: 13.5px; color: var(--lp-text-3); line-height: 1.5; }
.lp-arch-tags { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin-top: 12px; }
.lp-arch-tags span { font-size: 11.5px; font-weight: 700; padding: 3px 9px; border-radius: 999px; background: var(--lp-blue-050); color: var(--lp-blue-700); }
/* Animated connector between nodes (horizontal). */
.lp-arch-link { position: relative; align-self: center; height: 3px; min-width: 26px; margin: 0 -2px; background: var(--lp-border-strong); border-radius: 2px; z-index: 1; }
.lp-arch-link::before { content: ""; position: absolute; inset: 0; border-radius: inherit; background: linear-gradient(90deg, transparent, var(--lp-blue), transparent); background-size: 40% 100%; background-repeat: no-repeat; animation: lp-flow 2s linear infinite; }
.lp-arch-link::after { content: ""; position: absolute; top: 50%; right: -5px; width: 10px; height: 10px; border-top: 3px solid var(--lp-border-strong); border-right: 3px solid var(--lp-border-strong); transform: translateY(-50%) rotate(45deg); }

/* ── How it works (3 steps) ──────────────────────────────────────────────── */
.lp-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; position: relative; }
.lp-step { position: relative; background: var(--lp-surface); border: 1px solid var(--lp-border); border-radius: 18px; padding: 30px 26px; box-shadow: var(--lp-shadow-sm); transition: transform .2s, box-shadow .2s; }
.lp-step:hover { transform: translateY(-4px); box-shadow: var(--lp-shadow-md); }
.lp-step-num { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; font-weight: 800; font-size: 19px; color: #fff; background: linear-gradient(135deg, var(--lp-blue), var(--lp-indigo)); box-shadow: var(--lp-shadow-blue); margin-bottom: 18px; }
.lp-step h3 { font-size: 18px; margin-bottom: 9px; color: var(--lp-text); }
.lp-step p { color: var(--lp-text-2); font-size: 15px; line-height: 1.6; }

/* ── Code sample (tabbed curl) ───────────────────────────────────────────── */
.lp-code-wrap { max-width: 820px; margin: 0 auto; border-radius: 18px; overflow: hidden; box-shadow: var(--lp-shadow-lg); border: 1px solid var(--lp-border); background: #0d1b34; }
.lp-code-head { display: flex; align-items: center; gap: 10px; padding: 13px 16px; background: #0a1528; border-bottom: 1px solid rgba(255,255,255,.08); }
.lp-code-tabs { display: flex; gap: 6px; margin-left: 4px; }
.lp-code-tab { padding: 6px 14px; border-radius: 999px; border: none; cursor: pointer; font-family: var(--mono); font-size: 12.5px; font-weight: 700; color: #93a4c7; background: transparent; transition: color .15s, background .15s; }
.lp-code-tab:hover { color: #dbe8ff; }
.lp-code-tab.active { color: #fff; background: rgba(59,130,246,.28); }
.lp-code-copy { margin-left: auto; display: inline-flex; align-items: center; gap: 7px; padding: 7px 13px; border-radius: 999px; border: 1px solid rgba(255,255,255,.16); background: transparent; color: #b9c8e6; font-size: 12.5px; font-weight: 700; cursor: pointer; transition: color .15s, border-color .15s, background .15s; }
.lp-code-copy:hover { color: #fff; border-color: rgba(255,255,255,.34); background: rgba(255,255,255,.06); }
.lp-code-copy svg { width: 15px; height: 15px; }
.lp-code { margin: 0; padding: 20px 18px; overflow-x: auto; font-family: var(--mono); font-size: 13.5px; line-height: 1.75; color: #d7e2f4; }
.lp-code .tok-cmd { color: #4ade80; } .lp-code .tok-flag { color: #93a4c7; } .lp-code .tok-str { color: #fcd34d; } .lp-code .tok-url { color: #7dd3fc; } .lp-code .tok-key { color: #c4b5fd; }

/* ── FAQ ─────────────────────────────────────────────────────────────────── */
.lp-faq { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.lp-faq-item { background: var(--lp-surface); border: 1px solid var(--lp-border); border-radius: 14px; overflow: hidden; transition: border-color .18s, box-shadow .18s; }
.lp-faq-item.open { border-color: var(--lp-border-strong); box-shadow: var(--lp-shadow-md); }
.lp-faq-q { width: 100%; text-align: left; cursor: pointer; padding: 18px 20px; font-size: 16px; font-weight: 700; color: var(--lp-text); background: transparent; border: none; font-family: inherit; display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.lp-faq-q .lp-faq-toggle { flex: 0 0 auto; width: 26px; height: 26px; border-radius: 8px; background: var(--lp-blue-050); color: var(--lp-blue-700); display: grid; place-items: center; font-size: 20px; line-height: 1; transition: transform .2s, background .2s, color .2s; }
.lp-faq-item.open .lp-faq-toggle { transform: rotate(45deg); background: var(--lp-blue); color: #fff; }
.lp-faq-a { max-height: 0; overflow: hidden; transition: max-height .26s ease; }
.lp-faq-item.open .lp-faq-a { max-height: 340px; }
.lp-faq-a p { padding: 0 20px 18px; color: var(--lp-text-2); font-size: 15px; line-height: 1.65; }

/* ── Final CTA band ──────────────────────────────────────────────────────── */
.lp-cta-band { position: relative; overflow: hidden; border-radius: 26px; padding: 62px 32px; text-align: center; background: linear-gradient(135deg, var(--lp-blue-700), var(--lp-blue) 55%, var(--lp-indigo)); box-shadow: var(--lp-shadow-lg); isolation: isolate; }
.lp-cta-band::before { content: ""; position: absolute; inset: 0; z-index: -1; background: radial-gradient(420px 260px at 20% 10%, rgba(255,255,255,.28), transparent 60%), radial-gradient(460px 300px at 88% 90%, rgba(6,182,212,.4), transparent 62%); animation: lp-aurora 14s ease-in-out infinite alternate; }
.lp-cta-band::after { content: ""; position: absolute; inset: 0; z-index: -1; background-image: radial-gradient(rgba(255,255,255,.16) 1px, transparent 1.4px); background-size: 26px 26px; -webkit-mask-image: radial-gradient(closest-side at 50% 40%, #000, transparent); mask-image: radial-gradient(closest-side at 50% 40%, #000, transparent); }
.lp-cta-band h2 { font-size: clamp(28px, 4.4vw, 42px); letter-spacing: -.025em; margin-bottom: 14px; color: #fff; }
.lp-cta-band p { color: rgba(255,255,255,.92); font-size: 18px; margin-bottom: 30px; }
.lp-cta-band .lp-btn.primary { background: #fff; color: var(--lp-blue-700); box-shadow: 0 14px 34px rgba(0,0,0,.22); }
.lp-cta-band .lp-btn.ghost { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.5); color: #fff; }

/* ── Footer ──────────────────────────────────────────────────────────────── */
.lp-footer { border-top: 1px solid var(--lp-border); margin-top: auto; background: var(--lp-bg-soft); }
.lp-footer-inner { max-width: var(--lp-maxw); margin: 0 auto; padding: 34px 24px; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: var(--lp-text-3); font-size: 14px; }
.lp-footer-links { display: flex; gap: 22px; flex-wrap: wrap; }
.lp-footer-links a { color: var(--lp-text-2); font-weight: 600; }
.lp-footer-links a:hover { color: var(--lp-blue-700); }

/* Toast (copy feedback) */
.lp-toast { position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(20px); background: var(--lp-text); color: #fff; padding: 11px 20px; border-radius: 999px; font-size: 14px; font-weight: 700; box-shadow: var(--lp-shadow-lg); opacity: 0; pointer-events: none; transition: opacity .25s, transform .25s; z-index: 100; }
.lp-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 960px) {
  .lp-hero-inner { grid-template-columns: 1fr; gap: 40px; padding-top: 56px; }
  .lp-hero-copy { max-width: 640px; }
  .lp-hero-visual { min-height: 380px; max-width: 460px; margin: 0 auto; width: 100%; }
  .lp-features, .lp-steps { grid-template-columns: 1fr; }
  .lp-arch { grid-template-columns: 1fr; gap: 0; }
  .lp-arch-link { width: 3px; min-height: 30px; height: auto; justify-self: center; margin: -2px 0; }
  .lp-arch-link::before { background: linear-gradient(180deg, transparent, var(--lp-blue), transparent); background-size: 100% 40%; animation: lp-flow-y 2s linear infinite; }
  .lp-arch-link::after { top: auto; bottom: -5px; right: 50%; transform: translateX(50%) rotate(135deg); }
}
@media (max-width: 720px) {
  .lp-stats { grid-template-columns: repeat(2, 1fr); }
  .lp-nav-links a:not(.lp-btn) { display: none; }
  .lp-section { padding: 64px 18px; }
  .lp-hero-inner { padding: 40px 18px 72px; }
  .lp-chip-float.c2 { left: -4%; }
}

/* ══════════════════════════════════════════════════════════════════════════
   CodeBuddy-inspired components — kept in the pix4ks light+blue system.
   Content stays about pix4ks (Google Flow ảnh/video + ChatBot); only the
   STRUCTURE (laptop/IDE mockup, robot mascot, chrome CTA band, giant
   watermark) is borrowed. All inline SVG / pure CSS (CSP: no external img/js).
   ══════════════════════════════════════════════════════════════════════════ */

/* ── Robot mascot (hero) — inline SVG tinted via currentColor ─────────────── */
.lp-mascot { position: absolute; z-index: 4; width: 92px; height: 92px; top: -6%; left: -6%; color: var(--lp-blue); filter: drop-shadow(0 10px 22px rgba(37,99,235,.28)); animation: lp-float 6s ease-in-out infinite; pointer-events: none; }
.lp-mascot svg { width: 100%; height: 100%; display: block; }
@media (max-width: 960px) { .lp-mascot { width: 72px; height: 72px; top: -4%; left: 2%; } }

/* ── Product showcase: MacBook frame around the real pix4ks create UI ─────── */
.lp-showcase { max-width: 980px; margin: 0 auto; }
.lp-laptop { position: relative; margin: 0 auto; max-width: 860px; animation: lp-float 8s ease-in-out infinite; }
/* Screen: bezel + the mock pix4ks app inside. */
.lp-laptop-screen { position: relative; border-radius: 16px 16px 4px 4px; padding: 12px; background: linear-gradient(160deg, #1a2540, #0d1b34); box-shadow: var(--lp-shadow-lg); border: 1px solid rgba(255,255,255,.06); }
.lp-laptop-cam { position: absolute; top: 6px; left: 50%; transform: translateX(-50%); width: 6px; height: 6px; border-radius: 50%; background: #33415c; }
.lp-app { border-radius: 9px; overflow: hidden; background: #f7faff; border: 1px solid var(--lp-border); }
.lp-app-bar { display: flex; align-items: center; gap: 8px; padding: 10px 14px; background: #fff; border-bottom: 1px solid var(--lp-border); }
.lp-app-bar .lp-d { width: 11px; height: 11px; border-radius: 50%; }
.lp-app-bar .r { background: #ff6058; } .lp-app-bar .y { background: #ffbd2e; } .lp-app-bar .g { background: #28c840; }
.lp-app-url { margin-left: 8px; flex: 1; font-family: var(--mono); font-size: 12px; color: var(--lp-text-3); background: var(--lp-bg-soft); border: 1px solid var(--lp-border); border-radius: 7px; padding: 4px 10px; }
.lp-app-body { display: grid; grid-template-columns: 1.1fr 1fr; gap: 0; min-height: 300px; }
.lp-app-canvas { padding: 20px; border-right: 1px solid var(--lp-border); display: flex; flex-direction: column; }
.lp-app-canvas-grid { flex: 1; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.lp-shot { border-radius: 12px; border: 1px solid var(--lp-border); position: relative; overflow: hidden; background: linear-gradient(135deg, #dbe8ff, #cbeafe 55%, #dfe7ff); min-height: 84px; display: grid; place-items: center; color: rgba(37,99,235,.5); }
.lp-shot svg { width: 30px; height: 30px; }
.lp-shot::after { content: ""; position: absolute; inset: 0; background: linear-gradient(115deg, transparent 30%, rgba(255,255,255,.7) 50%, transparent 70%); transform: translateX(-120%); animation: lp-shimmer 3s ease-in-out infinite; }
.lp-shot.v { background: linear-gradient(135deg, #e6e0ff, #d7e6ff 55%, #dcefff); color: rgba(79,70,229,.55); }
.lp-shot.v2 { background: linear-gradient(135deg, #d6f3fb, #cbe6ff); color: rgba(6,132,144,.5); }
/* Composer strip mimicking /create-video "Bạn muốn tạo gì?" */
.lp-app-composer { margin-top: 14px; display: flex; align-items: center; gap: 10px; padding: 10px 12px; border: 1px solid var(--lp-border); border-radius: 12px; background: #fff; box-shadow: var(--lp-shadow-sm); }
.lp-app-composer .ph { flex: 1; color: var(--lp-text-3); font-size: 13.5px; }
.lp-app-composer .pill { font-size: 11.5px; font-weight: 700; color: var(--lp-blue-700); background: var(--lp-blue-050); border: 1px solid var(--lp-blue-100); border-radius: 999px; padding: 4px 10px; }
.lp-app-composer .go { width: 30px; height: 30px; flex: none; border-radius: 50%; display: grid; place-items: center; color: #fff; background: linear-gradient(135deg, var(--lp-blue), var(--lp-blue-700)); box-shadow: var(--lp-shadow-blue); }
.lp-app-composer .go svg { width: 15px; height: 15px; }
/* Side panel: fake job list / API response */
.lp-app-side { padding: 18px 16px; background: linear-gradient(180deg, #fbfdff, #f2f7ff); }
.lp-app-side-title { font-size: 12px; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; color: var(--lp-text-3); margin-bottom: 12px; }
.lp-job { display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 10px; background: #fff; border: 1px solid var(--lp-border); margin-bottom: 9px; font-size: 12.5px; color: var(--lp-text-2); }
.lp-job .lp-live { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.lp-job .lp-live.ok { background: #22c55e; } .lp-job .lp-live.run { background: var(--lp-blue); animation: lp-pulse 1.8s infinite; }
.lp-job .tag { margin-left: auto; font-family: var(--mono); font-size: 11px; color: var(--lp-text-3); }
/* Laptop base/hinge */
.lp-laptop-base { height: 14px; margin: 0 auto; width: 112%; max-width: none; transform: translateX(-5.3%); background: linear-gradient(180deg, #c3cede, #94a3b8); border-radius: 0 0 14px 14px; box-shadow: 0 18px 30px rgba(15,40,90,.18); }
.lp-laptop-base::after { content: ""; display: block; width: 16%; height: 5px; margin: 0 auto; background: #7c8aa3; border-radius: 0 0 8px 8px; }
@media (max-width: 760px) {
  .lp-app-body { grid-template-columns: 1fr; }
  .lp-app-canvas { border-right: none; border-bottom: 1px solid var(--lp-border); }
  .lp-app-side { display: none; }
}

/* ── Chrome / brushed-metal CTA band (reskin of .lp-cta-band via .chrome) ─── */
.lp-cta-band.chrome { background: linear-gradient(135deg, #e9edf4 0%, #cbd5e6 26%, #f3f6fb 50%, #c2cee0 74%, #dbe3ef 100%); background-size: 200% 100%; animation: lp-grad 12s ease-in-out infinite; }
.lp-cta-band.chrome::before { background: linear-gradient(115deg, transparent 34%, rgba(255,255,255,.7) 50%, transparent 66%); mix-blend-mode: screen; animation: lp-shimmer 6s ease-in-out infinite; }
.lp-cta-band.chrome::after { background-image: radial-gradient(rgba(15,40,90,.10) 1px, transparent 1.4px); }
.lp-cta-band.chrome h2 { color: var(--lp-text); }
.lp-cta-band.chrome p { color: var(--lp-text-2); }
.lp-cta-band.chrome .lp-btn.primary { background: linear-gradient(135deg, var(--lp-blue), var(--lp-blue-700)); color: #fff; box-shadow: var(--lp-shadow-blue); }
.lp-cta-band.chrome .lp-btn.ghost { background: rgba(255,255,255,.6); border-color: var(--lp-border-strong); color: var(--lp-blue-700); }
/* Faint watermark behind the chrome band copy */
.lp-cta-band.chrome .lp-watermark { color: rgba(15,40,90,.06); }

/* ── Giant faded "pix4ks" wordmark watermark ──────────────────────────────── */
.lp-watermark { position: absolute; left: 50%; bottom: -.18em; transform: translateX(-50%); z-index: 0; font-weight: 900; letter-spacing: -.04em; line-height: .8; font-size: clamp(72px, 20vw, 260px); color: var(--lp-blue-050); white-space: nowrap; pointer-events: none; user-select: none; }
.lp-cta-band > *:not(.lp-watermark) { position: relative; z-index: 1; }
/* Footer becomes a positioning context + clip so the watermark can bleed. */
.lp-footer { position: relative; overflow: clip; }
.lp-footer .lp-watermark { bottom: -.28em; color: rgba(37,99,235,.05); }
.lp-footer-inner { position: relative; z-index: 1; }

/* ══════════════════════════════════════════════════════════════════════════
   More CodeBuddy-inspired sections (marquee, bento, models, use-cases) —
   pix4ks content, light+blue tokens, pure CSS.
   ══════════════════════════════════════════════════════════════════════════ */

/* ── Marquee (edge-faded compatibility strip) ─────────────────────────────── */
@keyframes lp-marq { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.lp-marquee-wrap { max-width: var(--lp-maxw); margin: 6px auto 0; padding: 0 24px; }
.lp-marquee-cap { text-align: center; color: var(--lp-text-3); font-size: 13px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; margin-bottom: 16px; }
.lp-marquee { position: relative; overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); display: flex; flex-direction: column; gap: 12px; }
.lp-marquee-row { display: flex; gap: 12px; width: max-content; animation: lp-marq 40s linear infinite; }
.lp-marquee-row.alt { animation-duration: 55s; animation-direction: reverse; }
.lp-marquee:hover .lp-marquee-row { animation-play-state: paused; }
.lp-marquee-item { display: inline-flex; align-items: center; gap: 9px; padding: 10px 18px; border-radius: 999px; border: 1px solid var(--lp-border); background: var(--lp-surface); box-shadow: var(--lp-shadow-sm); font-size: 14px; font-weight: 700; color: var(--lp-text-2); white-space: nowrap; }
.lp-marquee-ic { display: inline-flex; color: var(--lp-blue); }
.lp-marquee-ic svg { width: 16px; height: 16px; }

/* ── Bento grid ───────────────────────────────────────────────────────────── */
.lp-bento { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 1fr; gap: 18px; }
.lp-bento-tile { position: relative; overflow: hidden; background: var(--lp-surface); border: 1px solid var(--lp-border); border-radius: 20px; padding: 26px 24px; box-shadow: var(--lp-shadow-sm); transition: transform .22s, box-shadow .22s, border-color .22s; }
.lp-bento-tile:hover { transform: translateY(-5px); box-shadow: var(--lp-shadow-lg); border-color: var(--lp-border-strong); }
.lp-bento-tile.b-lg { grid-column: span 2; grid-row: span 2; }
.lp-bento-tile.b-wide { grid-column: span 2; }
.lp-bento-tile::after { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: linear-gradient(90deg, var(--lp-blue-500), var(--lp-cyan)); opacity: 0; transition: opacity .22s; }
.lp-bento-tile:hover::after { opacity: 1; }
.lp-bento-ic { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; margin-bottom: 16px; background: linear-gradient(135deg, var(--lp-blue-050), var(--lp-blue-100)); color: var(--lp-blue-700); }
.lp-bento-ic svg { width: 26px; height: 26px; }
.lp-bento-tile.c-cyan .lp-bento-ic { background: linear-gradient(135deg, #d6f3fb, #c7ecfa); color: #0e7490; }
.lp-bento-tile.c-indigo .lp-bento-ic { background: linear-gradient(135deg, #e6e6ff, #dcd9ff); color: var(--lp-indigo); }
.lp-bento-tile h3 { font-size: 19px; margin-bottom: 8px; color: var(--lp-text); letter-spacing: -.01em; }
.lp-bento-tile.b-lg h3 { font-size: 24px; }
.lp-bento-tile p { color: var(--lp-text-2); font-size: 15px; line-height: 1.6; }
.lp-bento-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 16px; }
.lp-bento-tags span { font-size: 12px; font-weight: 700; padding: 4px 11px; border-radius: 999px; background: var(--lp-blue-050); color: var(--lp-blue-700); font-family: var(--mono); }

/* ── Models showcase ──────────────────────────────────────────────────────── */
.lp-models { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; max-width: 900px; margin: 0 auto; }
.lp-model-group { background: var(--lp-surface); border: 1px solid var(--lp-border); border-radius: 20px; padding: 26px; box-shadow: var(--lp-shadow-sm); transition: transform .2s, box-shadow .2s; }
.lp-model-group:hover { transform: translateY(-4px); box-shadow: var(--lp-shadow-md); }
.lp-model-head { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.lp-model-badge { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: linear-gradient(135deg, var(--lp-blue-050), var(--lp-blue-100)); color: var(--lp-blue-700); }
.lp-model-badge.c-cyan { background: linear-gradient(135deg, #d6f3fb, #c7ecfa); color: #0e7490; }
.lp-model-badge.c-indigo { background: linear-gradient(135deg, #e6e6ff, #dcd9ff); color: var(--lp-indigo); }
.lp-model-badge svg { width: 22px; height: 22px; }
.lp-model-head h3 { font-size: 20px; color: var(--lp-text); }
.lp-model-list { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.lp-model-list li { display: flex; align-items: flex-start; gap: 11px; }
.lp-model-dot { flex: none; margin-top: 7px; width: 8px; height: 8px; border-radius: 50%; background: linear-gradient(135deg, var(--lp-blue), var(--lp-cyan)); }
.lp-model-list b { display: block; color: var(--lp-text); font-size: 15px; }
.lp-model-sub { color: var(--lp-text-3); font-size: 13.5px; }
.lp-model-note { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--lp-border); color: var(--lp-text-3); font-size: 13px; font-family: var(--mono); }

/* ── Use cases ────────────────────────────────────────────────────────────── */
.lp-usecases { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.lp-usecase { background: var(--lp-surface); border: 1px solid var(--lp-border); border-radius: 18px; padding: 26px 22px; box-shadow: var(--lp-shadow-sm); transition: transform .2s, box-shadow .2s, border-color .2s; }
.lp-usecase:hover { transform: translateY(-5px); box-shadow: var(--lp-shadow-lg); border-color: var(--lp-border-strong); }
.lp-usecase-ic { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; margin-bottom: 16px; background: linear-gradient(135deg, var(--lp-blue-050), var(--lp-blue-100)); color: var(--lp-blue-700); transition: transform .22s; }
.lp-usecase:hover .lp-usecase-ic { transform: scale(1.08) rotate(-4deg); }
.lp-usecase-ic svg { width: 24px; height: 24px; }
.lp-usecase h3 { font-size: 17px; margin-bottom: 8px; color: var(--lp-text); }
.lp-usecase p { color: var(--lp-text-2); font-size: 14.5px; line-height: 1.6; }

/* ── Responsive for the new sections ──────────────────────────────────────── */
@media (max-width: 900px) {
  .lp-bento { grid-template-columns: repeat(2, 1fr); }
  .lp-bento-tile.b-lg { grid-column: span 2; grid-row: span 1; }
  .lp-usecases { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .lp-bento, .lp-models, .lp-usecases { grid-template-columns: 1fr; }
  .lp-bento-tile.b-lg, .lp-bento-tile.b-wide { grid-column: span 1; }
}