/* ============================================================
   MAP Solutions — Smart Factory Landing Page
   Industrial Tech · Dark Theme · Cyan + Orange Accent
   ============================================================ */

/* ---------- 1. Reset & Base ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-text-size-adjust: 100%;
}

:root {
  color-scheme: dark;

  /* Palette */
  --bg: #050816;
  --bg-1: #0a1028;
  --bg-2: #0e1638;
  --surface: #121b3d;
  --surface-2: #1a2350;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #f0f3ff;
  --text-muted: #a8b2cf;
  --text-dim: #828cad;

  --accent-ink: var(--primary); /* cyan used as TEXT — deepens on light bg for contrast */

  --primary: #00d9ff;
  --primary-2: #2ee1ff;
  --accent: #ff6b35;
  --accent-2: #ffb700;
  --magenta: #d946ef;
  --violet: #8b5cf6;
  --emerald: #10d9a0;

  /* Surfaces & overlays — theme-aware (flipped in [data-theme="light"]) */
  --glass: rgba(255, 255, 255, 0.04);       /* subtle glass fill (buttons, fields, chips) */
  --glass-hover: rgba(255, 255, 255, 0.08); /* hover state for glass surfaces */
  --glass-weak: rgba(255, 255, 255, 0.02);  /* faintest fill (client chips, filters) */
  --card-top: rgba(255, 255, 255, 0.04);    /* card gradient — top stop */
  --card-bot: rgba(255, 255, 255, 0.01);    /* card gradient — bottom stop */
  --grid-line: rgba(255, 255, 255, 0.04);   /* decorative background grid lines */
  --nav-bg: rgba(5, 8, 22, 0.78);           /* scrolled navbar backdrop */
  --nav-bg-solid: rgba(5, 8, 22, 0.96);     /* mobile menu sheet */
  --inset-bg: rgba(5, 8, 22, 0.55);         /* inset panels (form, results) */
  --shadow-hover: 0 30px 60px -25px rgba(0, 0, 0, 0.7);

  /* Effects */
  --grad-text: linear-gradient(135deg, #00d9ff 0%, #7c5cff 50%, #ff6b35 100%);
  --grad-glow-cyan: radial-gradient(circle, rgba(0, 217, 255, 0.35), transparent 70%);
  --grad-glow-orange: radial-gradient(circle, rgba(255, 107, 53, 0.32), transparent 70%);
  --grad-glow-violet: radial-gradient(circle, rgba(124, 92, 255, 0.30), transparent 70%);

  --shadow-card: 0 24px 60px -24px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.05) inset;
  --shadow-glow: 0 0 0 1px rgba(0, 217, 255, 0.3), 0 12px 40px -10px rgba(0, 217, 255, 0.25);

  /* Type — Be Vietnam Pro: thiết kế riêng cho tiếng Việt, dấu chuẩn xác */
  --font-sans: 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-display: 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  /* Radii */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;
  --r-xl: 32px;
  --r-pill: 999px;

  /* Layout */
  --container: 1240px;
  --section-py: clamp(72px, 10vw, 140px);
}

/* ---------- 1b. Light theme ----------
   Only the theme-dependent tokens are overridden; every component reads these
   variables, so the whole page flips without touching individual rules.
   The brand cyan/orange/violet accents stay vibrant; only their use as TEXT
   switches to a deeper ink (--accent-ink) for contrast on light surfaces. */
:root[data-theme="light"] {
  color-scheme: light;

  --bg: #e4e9f3;         /* deeper cool gray so white cards clearly separate */
  --bg-1: #ffffff;
  --bg-2: #ffffff;
  --surface: #ffffff;
  --surface-2: #f3f6fc;
  --border: rgba(15, 23, 55, 0.12);
  --border-strong: rgba(15, 23, 55, 0.22);
  --text: #0b1220;
  --text-muted: #45506d;
  --text-dim: #5f6886;

  --accent-ink: #0a7e98; /* deep cyan — readable as text on white (WCAG AA) */

  --glass: rgba(15, 23, 55, 0.045);
  --glass-hover: rgba(15, 23, 55, 0.085);
  --glass-weak: rgba(15, 23, 55, 0.03);
  --card-top: #ffffff;   /* solid white cards — crisp separation from the bg */
  --card-bot: #ffffff;
  --grid-line: rgba(15, 23, 55, 0.045);
  --nav-bg: rgba(255, 255, 255, 0.85);
  --nav-bg-solid: rgba(255, 255, 255, 0.98);
  --inset-bg: #f7f9fd;   /* solid light inset (form, results) */
  --shadow-hover: 0 22px 48px -24px rgba(15, 23, 55, 0.30);

  /* Deeper, contrast-safe gradient for TEXT (brand, stats, KPIs). The bright
     cyan→orange ramp washed out and looked garish on white; every stop here
     clears WCAG AA on a white background. */
  --grad-text: linear-gradient(135deg, #0a7e98 0%, #6d28d9 55%, #c2410c 100%);
  --shadow-card: 0 1px 2px rgba(15, 23, 55, 0.06), 0 16px 34px -18px rgba(15, 23, 55, 0.26);
}

/* Light hero: a clean brand-tinted gradient instead of a dimmed photo.
   A white film over the dark aerial shot read muddy/low-contrast ("thô") and
   leaked stray ground markings — a soft gradient is crisper and more premium. */
:root[data-theme="light"] .hero::before {
  background-image:
    radial-gradient(64% 52% at 50% 40%, rgba(255, 255, 255, 0.86), rgba(255, 255, 255, 0) 72%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.55) 0%, rgba(244, 247, 252, 0.12) 55%, var(--bg) 100%),
    url('assets/img/hero-light.jpg');
  background-size: cover;
  background-position: center;
  background-blend-mode: normal;
}

/* Crispness on white: the blurred neon orbs and the noise overlay are tuned for
   the dark canvas — on a light bg they read as muddy colored haze / dirty grain.
   Drop them; the faint grid + hero gradient carry enough atmosphere. */
:root[data-theme="light"] .bg-orbs,
:root[data-theme="light"] .bg-noise { display: none; }

/* Solid white cards need a real (soft, neutral) shadow to lift off the light bg.
   In dark mode they sit shadowless on the dark canvas — hence the light-only rule. */
:root[data-theme="light"] .value-card,
:root[data-theme="light"] .sol-card,
:root[data-theme="light"] .ind-card,
:root[data-theme="light"] .proj-card,
:root[data-theme="light"] .member,
:root[data-theme="light"] .cs-card,
:root[data-theme="light"] .cta-card,
:root[data-theme="light"] .cta-form,
:root[data-theme="light"] .cs-results {
  box-shadow: var(--shadow-card);
}
:root[data-theme="light"] .value-card:hover,
:root[data-theme="light"] .sol-card:hover,
:root[data-theme="light"] .ind-card:hover,
:root[data-theme="light"] .proj-card:hover,
:root[data-theme="light"] .member:hover {
  box-shadow: var(--shadow-hover);
}

/* Tame the neon cyan halos — they look toy-like on white. Keep the brand color,
   swap the glow for a soft neutral lift. */
:root[data-theme="light"] .btn-primary { box-shadow: 0 8px 22px -10px rgba(8, 99, 130, 0.45); }
:root[data-theme="light"] .btn-primary:hover { box-shadow: 0 14px 30px -12px rgba(8, 99, 130, 0.55); }
:root[data-theme="light"] .filter-btn.is-active { box-shadow: 0 8px 20px -10px rgba(8, 99, 130, 0.4); }
:root[data-theme="light"] .proc-num { box-shadow: 0 12px 26px -10px rgba(15, 23, 55, 0.28); }
:root[data-theme="light"] .sol-card:hover { border-color: rgba(8, 145, 178, 0.45); }

/* Soften the decorative glow blobs baked into feature cards (cyan smudges on white) */
:root[data-theme="light"] .cs-card::before { opacity: 0.1; }
:root[data-theme="light"] .ind-featured::before { opacity: 0.2; }

/* Firmer borders so the tinted feature cards still read as cards on white */
:root[data-theme="light"] .ind-featured { border-color: rgba(8, 145, 178, 0.3); }
:root[data-theme="light"] .cta-card { border-color: rgba(8, 145, 178, 0.28); }
:root[data-theme="light"] .cs-card { border-color: rgba(8, 145, 178, 0.2); }

/* Footer: a cool wash instead of the dark-mode black fade */
:root[data-theme="light"] .footer {
  background: linear-gradient(180deg, transparent, rgba(15, 23, 55, 0.04));
}

/* Native form controls render light; wells are solid white for a crisp form */
:root[data-theme="light"] .cta-form,
:root[data-theme="light"] .form-field select { color-scheme: light; }
:root[data-theme="light"] .form-field input,
:root[data-theme="light"] .form-field select,
:root[data-theme="light"] .form-field textarea { background: #ffffff; }
:root[data-theme="light"] .form-field select option { background-color: #ffffff; color: var(--text); }

body {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; background: none; border: none; color: inherit; }
ul { list-style: none; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.25; letter-spacing: -0.02em; }

/* ---------- 2. Background Decoration ---------- */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -3;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: center;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  pointer-events: none;
}

.bg-orbs {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  overflow: hidden;
}
.orb {
  position: absolute;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.45;
  animation: orbFloat 18s ease-in-out infinite;
}
.orb-1 {
  background: var(--grad-glow-cyan);
  top: -200px;
  left: -200px;
}
.orb-2 {
  background: var(--grad-glow-violet);
  top: 30%;
  right: -250px;
  animation-delay: -6s;
  animation-duration: 22s;
}
.orb-3 {
  background: var(--grad-glow-orange);
  bottom: -200px;
  left: 30%;
  animation-delay: -12s;
  opacity: 0.32;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(40px, -30px) scale(1.08); }
  66% { transform: translate(-30px, 40px) scale(0.95); }
}

.bg-noise {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

/* ---------- 3. Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 40px);
}

.section { padding: var(--section-py) 0; position: relative; }

.section-head { max-width: 760px; margin: 0 auto 56px; text-align: center; }
.section-title {
  font-size: clamp(28px, 4vw, 48px);
  margin-top: 16px;
  letter-spacing: -0.02em;
}
.section-lede {
  color: var(--text-muted);
  margin-top: 18px;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.7;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-ink);
}
.eyebrow-line {
  width: 32px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary));
}

.gradient-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- 4. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  border-radius: var(--r-pill);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: -0.01em;
  transition: all .25s ease;
  position: relative;
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; transition: transform .25s ease; }
.btn-sm { padding: 10px 18px; font-size: 14px; }

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #00b8e6 100%);
  color: #001827;
  box-shadow: 0 8px 28px -8px rgba(0, 217, 255, 0.6);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 36px -10px rgba(0, 217, 255, 0.8);
}
.btn-primary:hover svg { transform: translateX(3px); }

.btn-ghost {
  color: var(--text);
  background: var(--glass);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover {
  background: var(--glass-hover);
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

/* ---------- Skip link (a11y) ---------- */
.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  padding: 10px 16px;
  border-radius: var(--r-pill);
  background: var(--primary);
  color: #001827;
  font-weight: 600;
  font-size: 14px;
  transform: translateY(-150%);
  transition: transform .2s ease;
}
.skip-link:focus-visible {
  transform: translateY(0);
  outline: 2px solid #fff;
  outline-offset: 2px;
}

/* ---------- 5. Navigation ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  transition: all .35s ease;
}
.nav.is-scrolled {
  background: var(--nav-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.05em;
  font-size: 18px;
  color: var(--text);
}
.brand-mark {
  height: 36px;
  width: auto;
  display: block;
  /* the real logo carries its own colour — just a soft lift so it sits on dark + light */
  filter: drop-shadow(0 3px 12px rgba(0, 217, 255, 0.22));
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}
.brand:hover .brand-mark { transform: rotate(-6deg) scale(1.05); }
.brand-name { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
:root[data-theme="light"] .brand-mark { filter: drop-shadow(0 3px 10px rgba(15, 23, 55, 0.18)); }

.nav-links {
  display: flex;
  gap: 4px;
  align-items: center;
}
.nav-links a {
  padding: 8px 16px;
  font-size: 14.5px;
  color: var(--text-muted);
  border-radius: var(--r-pill);
  transition: color .15s ease, background .15s ease;
  position: relative;
  outline: none;
}
.nav-links a:hover {
  color: var(--text);
  background: var(--glass);
}
.nav-links a:focus-visible {
  box-shadow: 0 0 0 2px rgba(0, 217, 255, 0.5);
}
.nav-links a.is-active {
  color: var(--accent-ink);
  background: rgba(0, 217, 255, 0.10);
}
.nav-links a.is-active::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: -6px;
  transform: translateX(-50%);
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 10px var(--primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--glass);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  transition: all .2s ease;
}
.lang-toggle:hover { border-color: var(--border-strong); }
.lang-opt {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  opacity: .5;
  transition: color .2s ease, opacity .2s ease;
}
.lang-opt.is-active { color: var(--accent-ink); opacity: 1; }
.lang-sep { color: var(--text-dim); }
.flag {
  width: 18px;
  height: 12px;
  border-radius: 2px;
  display: block;
  flex: none;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.14);
}

/* ---------- Theme (dark/light) toggle ---------- */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  flex: none;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--glass);
  color: var(--text-muted);
  transition: color .2s ease, border-color .2s ease, background .2s ease, transform .2s ease;
}
.theme-toggle:hover {
  color: var(--text);
  border-color: var(--border-strong);
}
.theme-toggle:active { transform: scale(0.92); }
.theme-toggle:focus-visible {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.25);
}
.theme-toggle svg { width: 18px; height: 18px; }
/* Show the icon for the action the click performs:
   dark theme → sun (go light) · light theme → moon (go dark) */
.theme-toggle .icon-moon { display: none; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: block; }

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 10px;
}
.nav-burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all .3s ease;
}

/* ---------- 6. Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(180deg, rgba(5, 8, 22, 0.86) 0%, rgba(5, 8, 22, 0.7) 40%, rgba(5, 8, 22, 0.96) 100%),
    linear-gradient(135deg, rgba(0, 217, 255, 0.18), rgba(124, 92, 255, 0.18), rgba(255, 107, 53, 0.14)),
    url('assets/img/hero.jpg');
  background-size: cover;
  background-position: center;
  background-blend-mode: normal, overlay, normal;
}

.hero-inner {
  position: relative;
  text-align: center;
  max-width: 960px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  border: 1px solid var(--border-strong);
  background: var(--glass);
  backdrop-filter: blur(10px);
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 32px;
}
.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(0, 217, 255, 0.6);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(0, 217, 255, 0.7); }
  70% { box-shadow: 0 0 0 12px rgba(0, 217, 255, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 217, 255, 0); }
}

.hero-title {
  font-size: clamp(34px, 5.6vw, 64px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.035em;
  margin: 0 auto 28px;
}
.hero-title .line { display: block; }

.hero-sub {
  font-size: clamp(16px, 1.8vw, 20px);
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 80px;
}

.hero-marquee {
  margin-top: 64px;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, black 15%, black 85%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 15%, black 85%, transparent);
}
.marquee-track {
  display: flex;
  gap: 28px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-dim);
  letter-spacing: 0.15em;
  white-space: nowrap;
  animation: marquee 40s linear infinite;
  width: max-content;
}
.marquee-track span:nth-child(odd) { color: var(--accent-ink); font-weight: 500; }
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.hero-visual {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.18;
  mix-blend-mode: screen;
}
.hex-grid {
  display: grid;
  grid-template-columns: repeat(3, 100px);
  gap: 40px;
  transform: rotate(15deg);
}
.hex {
  width: 100px;
  height: 110px;
  background: linear-gradient(135deg, rgba(0, 217, 255, 0.05), rgba(255, 107, 53, 0.05));
  border: 1px solid rgba(255, 255, 255, 0.06);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  animation: hexFloat 8s ease-in-out infinite;
}
.hex:nth-child(2) { animation-delay: -1s; }
.hex:nth-child(3) { animation-delay: -2s; }
.hex:nth-child(4) { animation-delay: -3s; }
.hex:nth-child(5) { animation-delay: -4s; }
.hex:nth-child(6) { animation-delay: -5s; }
.hex:nth-child(7) { animation-delay: -6s; }
.hex:nth-child(8) { animation-delay: -7s; }
@keyframes hexFloat {
  0%, 100% { transform: translateY(0); opacity: 0.3; }
  50% { transform: translateY(-12px); opacity: 0.7; }
}

/* ---------- 7. Stats Bar ---------- */
.stats {
  padding: 32px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(0, 217, 255, 0.02), transparent);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.stat { text-align: center; padding: 24px 12px; }
.stat-num {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 700;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
  letter-spacing: -0.03em;
}
.stat-label {
  margin-top: 10px;
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* ---------- 7b. Clients trust strip ---------- */
.clients { padding: 56px 0 16px; }
.clients-lede {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 26px;
}
.clients-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 14px;
}
.client-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--glass-weak);
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: all .25s ease;
}
.client-chip svg { width: 18px; height: 18px; flex: none; }
.client-chip:hover {
  color: var(--text-muted);
  border-color: var(--border-strong);
  background: var(--glass);
}
.client-chip:hover svg { color: var(--accent-ink); }

/* ---------- 9. About / Values ---------- */
.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.value-card {
  background: linear-gradient(180deg, var(--card-top), var(--card-bot));
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 32px;
  transition: all .3s ease;
  position: relative;
  overflow: hidden;
}
.value-card::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 200px;
  height: 200px;
  background: var(--grad-glow-cyan);
  opacity: 0;
  transition: opacity .4s ease;
  border-radius: 50%;
}
.value-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
}
.value-card:hover::before { opacity: 0.6; }

.value-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 217, 255, 0.16), rgba(0, 217, 255, 0.04));
  border: 1px solid rgba(0, 217, 255, 0.25);
  color: var(--accent-ink);
  margin-bottom: 20px;
}
.value-icon svg { width: 26px; height: 26px; }

.value-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
}
.value-card p {
  color: var(--text-muted);
  font-size: 14.5px;
  line-height: 1.65;
}

/* ---------- 10. Solutions ---------- */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.sol-card {
  background: linear-gradient(180deg, var(--surface), var(--bg-2));
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 28px;
  position: relative;
  transition: all .35s ease;
  overflow: hidden;
}
.sol-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 217, 255, 0.08), transparent 50%);
  opacity: 0;
  transition: opacity .35s ease;
  pointer-events: none;
}
.sol-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 217, 255, 0.4);
  box-shadow: 0 24px 50px -20px rgba(0, 217, 255, 0.2);
}
.sol-card:hover::after { opacity: 1; }

/* Số thứ tự 01–23 đã bỏ để thẻ gọn hơn (ẩn để khỏi sửa 23 chỗ trong HTML) */
.sol-tag { display: none; }
.sol-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 217, 255, 0.2), rgba(124, 92, 255, 0.12));
  border: 1px solid rgba(0, 217, 255, 0.3);
  color: var(--accent-ink);
  margin-bottom: 20px;
  transition: all .3s ease;
}
.sol-icon svg { width: 28px; height: 28px; }
.sol-card:hover .sol-icon {
  transform: rotate(-5deg) scale(1.05);
  background: linear-gradient(135deg, rgba(0, 217, 255, 0.3), rgba(255, 107, 53, 0.2));
}
.sol-card h3 {
  font-size: 22px;
  letter-spacing: -0.01em;
}
.sol-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--accent-ink);
  margin-top: 4px;
  margin-bottom: 14px;
}
.sol-desc {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.65;
}

/* Solution accent colors by position */
.sol-card[data-sol="mes"] .sol-icon { background: linear-gradient(135deg, rgba(255, 107, 53, 0.2), rgba(255, 183, 0, 0.12)); border-color: rgba(255, 107, 53, 0.3); color: var(--accent); }
.sol-card[data-sol="wms"] .sol-icon { background: linear-gradient(135deg, rgba(16, 217, 160, 0.2), rgba(0, 217, 255, 0.12)); border-color: rgba(16, 217, 160, 0.3); color: var(--emerald); }
.sol-card[data-sol="asrs"] .sol-icon { background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(217, 70, 239, 0.12)); border-color: rgba(139, 92, 246, 0.3); color: var(--violet); }
.sol-card[data-sol="rcs"] .sol-icon { background: linear-gradient(135deg, rgba(255, 183, 0, 0.2), rgba(255, 107, 53, 0.12)); border-color: rgba(255, 183, 0, 0.35); color: var(--accent-2); }
.sol-card[data-sol="aps"] .sol-icon { background: linear-gradient(135deg, rgba(217, 70, 239, 0.2), rgba(139, 92, 246, 0.12)); border-color: rgba(217, 70, 239, 0.3); color: var(--magenta); }
.sol-card[data-sol="scada"] .sol-icon { background: linear-gradient(135deg, rgba(0, 217, 255, 0.2), rgba(16, 217, 160, 0.12)); border-color: rgba(0, 217, 255, 0.3); color: var(--accent-ink); }
.sol-card[data-sol="twin"] .sol-icon { background: linear-gradient(135deg, rgba(124, 92, 255, 0.22), rgba(0, 217, 255, 0.12)); border-color: rgba(124, 92, 255, 0.35); color: #a78bfa; }
.sol-card[data-sol="hrm"] .sol-icon { background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(217, 70, 239, 0.12)); border-color: rgba(139, 92, 246, 0.3); color: var(--violet); }
.sol-card[data-sol="tpm"] .sol-icon { background: linear-gradient(135deg, rgba(255, 107, 53, 0.2), rgba(255, 183, 0, 0.12)); border-color: rgba(255, 107, 53, 0.3); color: var(--accent); }
.sol-card[data-sol="qms"] .sol-icon { background: linear-gradient(135deg, rgba(16, 217, 160, 0.2), rgba(0, 217, 255, 0.12)); border-color: rgba(16, 217, 160, 0.3); color: var(--emerald); }
.sol-card[data-sol="crm"] .sol-icon { background: linear-gradient(135deg, rgba(217, 70, 239, 0.2), rgba(139, 92, 246, 0.12)); border-color: rgba(217, 70, 239, 0.3); color: var(--magenta); }
.sol-card[data-sol="scm"] .sol-icon { background: linear-gradient(135deg, rgba(16, 217, 160, 0.2), rgba(0, 217, 255, 0.12)); border-color: rgba(16, 217, 160, 0.3); color: var(--emerald); }
.sol-card[data-sol="plm"] .sol-icon { background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(0, 217, 255, 0.12)); border-color: rgba(139, 92, 246, 0.3); color: var(--violet); }
.sol-card[data-sol="bi"] .sol-icon { background: linear-gradient(135deg, rgba(255, 183, 0, 0.2), rgba(255, 107, 53, 0.12)); border-color: rgba(255, 183, 0, 0.35); color: var(--accent-2); }
.sol-card[data-sol="eam"] .sol-icon { background: linear-gradient(135deg, rgba(255, 107, 53, 0.2), rgba(255, 183, 0, 0.12)); border-color: rgba(255, 107, 53, 0.3); color: var(--accent); }
.sol-card[data-sol="ehs"] .sol-icon { background: linear-gradient(135deg, rgba(16, 217, 160, 0.2), rgba(124, 92, 255, 0.12)); border-color: rgba(16, 217, 160, 0.3); color: var(--emerald); }
.sol-card[data-sol="wcs"] .sol-icon { background: linear-gradient(135deg, rgba(0, 217, 255, 0.2), rgba(16, 217, 160, 0.12)); border-color: rgba(0, 217, 255, 0.3); color: var(--accent-ink); }
.sol-card[data-sol="tms"] .sol-icon { background: linear-gradient(135deg, rgba(217, 70, 239, 0.2), rgba(255, 107, 53, 0.12)); border-color: rgba(217, 70, 239, 0.3); color: var(--magenta); }
.sol-card[data-sol="lims"] .sol-icon { background: linear-gradient(135deg, rgba(124, 92, 255, 0.2), rgba(217, 70, 239, 0.12)); border-color: rgba(124, 92, 255, 0.3); color: var(--violet); }
.sol-card[data-sol="ai"] .sol-icon { background: linear-gradient(135deg, rgba(0, 217, 255, 0.2), rgba(124, 92, 255, 0.14)); border-color: rgba(124, 92, 255, 0.35); color: var(--violet); }
.sol-card[data-sol="agent"] .sol-icon { background: linear-gradient(135deg, rgba(217, 70, 239, 0.2), rgba(124, 92, 255, 0.12)); border-color: rgba(217, 70, 239, 0.3); color: var(--magenta); }
.sol-card[data-sol="iiot"] .sol-icon { background: linear-gradient(135deg, rgba(16, 217, 160, 0.2), rgba(0, 217, 255, 0.12)); border-color: rgba(16, 217, 160, 0.3); color: var(--emerald); }

/* ---------- 11. Industries ---------- */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.ind-card {
  background: linear-gradient(180deg, var(--card-top), var(--card-bot));
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 30px;
  transition: all .3s ease;
  position: relative;
  overflow: hidden;
}
.ind-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  background: linear-gradient(180deg, var(--card-top), var(--card-bot));
}
.ind-featured {
  background: linear-gradient(135deg, rgba(0, 217, 255, 0.12), rgba(255, 107, 53, 0.08));
  border-color: rgba(0, 217, 255, 0.35);
  grid-column: span 2;
}
.ind-featured::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 60%;
  height: 200%;
  background: var(--grad-glow-cyan);
  opacity: 0.5;
  filter: blur(40px);
  pointer-events: none;
}

.ind-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--glass);
  border: 1px solid var(--border);
  color: var(--text);
  margin-bottom: 18px;
}
.ind-featured .ind-icon {
  background: linear-gradient(135deg, var(--primary), #2ee1ff);
  color: #001827;
  border-color: transparent;
}
.ind-icon svg { width: 24px; height: 24px; }
.ind-card h3 { font-size: 19px; margin-bottom: 10px; }
.ind-featured h3 { font-size: 24px; }
.ind-card p { color: var(--text-muted); font-size: 14px; line-height: 1.65; }

.ind-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 4px 12px;
  border-radius: var(--r-pill);
  background: linear-gradient(135deg, var(--primary), var(--violet));
  color: #001827;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ---------- 12. Projects ---------- */
.filter-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 40px;
}
.filter-btn {
  padding: 10px 20px;
  border-radius: var(--r-pill);
  border: 1px solid var(--border);
  background: var(--glass-weak);
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  transition: all .25s ease;
}
.filter-btn:hover {
  color: var(--text);
  border-color: var(--border-strong);
  background: var(--glass-hover);
}
.filter-btn.is-active {
  background: linear-gradient(135deg, var(--primary), #00b8e6);
  color: #001827;
  border-color: transparent;
  box-shadow: 0 8px 24px -10px rgba(0, 217, 255, 0.6);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.proj-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: all .35s ease;
  display: flex;
  flex-direction: column;
}
.proj-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-hover);
}
.proj-card.is-hidden { display: none; }

.proj-cover {
  height: 180px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.proj-cover::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.6;
  pointer-events: none;
}
.proj-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, 0.4));
  pointer-events: none;
}

/* Illustrated "blueprint" covers — white line-art on a brand gradient.
   Replaces the off-brand stock photos: every cover now actually depicts what
   its caption claims, in one cohesive, swappable visual language. */
.proj-art {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  transition: transform .55s cubic-bezier(.22, 1, .36, 1);
}
.proj-card:hover .proj-art { transform: scale(1.045); }
.proj-art .s0 { fill: none; stroke: rgba(255,255,255,.88); stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.proj-art .s1 { fill: none; stroke: rgba(255,255,255,.58); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.proj-art .s2 { fill: none; stroke: rgba(255,255,255,.30); stroke-width: 1.2; stroke-linecap: round; stroke-linejoin: round; }
.proj-art .f0 { fill: rgba(255,255,255,.10); }
.proj-art .f1 { fill: rgba(255,255,255,.20); }
.proj-art .box  { fill: rgba(255,255,255,.12); stroke: rgba(255,255,255,.72); stroke-width: 1.7; stroke-linejoin: round; }
.proj-art .box2 { fill: rgba(255,255,255,.24); stroke: rgba(255,255,255,.88); stroke-width: 1.7; stroke-linejoin: round; }
.proj-art .dot  { fill: rgba(255,255,255,.92); }
.proj-art .spark { fill: #fff; }
.proj-art .pulse { animation: artPulse 2.8s ease-in-out infinite; }
@keyframes artPulse { 0%, 100% { opacity: .45; } 50% { opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  .proj-art .pulse { animation: none; }
  .proj-card:hover .proj-art { transform: none; }
}

.proj-chip {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  padding: 4px 12px;
  border-radius: var(--r-pill);
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: #fff;
}

/* Brand gradient covers (deep → saturated) behind the blueprint line-art.
   Each project keeps a distinct hue so the grid feels lively, not templated. */
.proj-cover {
  background-size: cover;
  background-position: center;
  background-color: #0a1230;
}
.proj-cover-textile-1 { background-image: linear-gradient(150deg, #062a3e 0%, #0e7ea3 100%); }
.proj-cover-textile-2 { background-image: linear-gradient(150deg, #3a0a29 0%, #c23d86 100%); }
.proj-cover-textile-3 { background-image: linear-gradient(150deg, #0a1f4d 0%, #2f6fd6 100%); }
.proj-cover-textile-4 { background-image: linear-gradient(150deg, #3a1605 0%, #d9641f 100%); }
.proj-cover-textile-5 { background-image: linear-gradient(150deg, #06301f 0%, #1f9e63 100%); }
.proj-cover-textile-6 { background-image: linear-gradient(150deg, #260a4d 0%, #8a4fe0 100%); }
.proj-cover-mfg-1 { background-image: linear-gradient(150deg, #04223a 0%, #1273c0 100%); }
.proj-cover-mfg-2 { background-image: linear-gradient(150deg, #3a0c0c 0%, #cc3333 100%); }
.proj-cover-mfg-3 { background-image: linear-gradient(150deg, #3a2606 0%, #d99a1f 100%); }
.proj-cover-mfg-4 { background-image: linear-gradient(150deg, #14202e 0%, #4a6378 100%); }
.proj-cover-mfg-5 { background-image: linear-gradient(150deg, #3a0c28 0%, #e0457a 100%); }
.proj-cover-log-1 { background-image: linear-gradient(150deg, #053024 0%, #12a075 100%); }
.proj-cover-log-2 { background-image: linear-gradient(150deg, #220a4d 0%, #7c4fe0 100%); }
.proj-cover-log-3 { background-image: linear-gradient(150deg, #3a1a05 0%, #e07a1f 100%); }
.proj-cover-en-1 { background-image: linear-gradient(150deg, #33270a 0%, #e0b020 100%); }

.proj-body {
  padding: 24px 24px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.proj-tags {
  display: flex;
  gap: 6px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.proj-tags span {
  padding: 3px 10px;
  border-radius: var(--r-pill);
  background: rgba(0, 217, 255, 0.1);
  border: 1px solid rgba(0, 217, 255, 0.25);
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.proj-body h3 {
  font-size: 18px;
  line-height: 1.3;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.proj-body p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
  flex: 1;
}

/* ---------- 12b. Case study ---------- */
.cs-card {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: clamp(28px, 4vw, 56px);
  background: linear-gradient(180deg, var(--surface), var(--bg-2));
  border: 1px solid rgba(0, 217, 255, 0.22);
  border-radius: var(--r-xl);
  padding: clamp(28px, 5vw, 56px);
  position: relative;
  overflow: hidden;
}
.cs-card::before {
  content: '';
  position: absolute;
  top: -160px;
  left: -160px;
  width: 420px;
  height: 420px;
  background: var(--grad-glow-cyan);
  opacity: 0.35;
  pointer-events: none;
}
.cs-main { position: relative; }
.cs-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 22px; }
.cs-tags span {
  padding: 4px 12px;
  border-radius: var(--r-pill);
  background: rgba(0, 217, 255, 0.1);
  border: 1px solid rgba(0, 217, 255, 0.25);
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.cs-heading {
  font-size: 14px;
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-ink);
  margin: 26px 0 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.cs-heading::before {
  content: '';
  width: 18px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), transparent);
}
.cs-text { color: var(--text-muted); font-size: 15px; line-height: 1.7; }
.cs-list { display: grid; gap: 9px; }
.cs-list li {
  position: relative;
  padding-left: 24px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.6;
}
.cs-list li::before {
  content: '›';
  position: absolute;
  left: 4px;
  top: -1px;
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-weight: 700;
}
.cs-quote {
  margin-top: 28px;
  padding: 20px 24px;
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: rgba(0, 217, 255, 0.06);
}
.cs-quote p { font-style: italic; color: var(--text); font-size: 15px; line-height: 1.7; }
.cs-quote cite {
  display: block;
  margin-top: 12px;
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}
.cs-results {
  position: relative;
  align-self: start;
  background: var(--inset-bg);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 28px;
}
.cs-results h4 {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 22px;
}
.cs-kpis { display: grid; grid-template-columns: 1fr 1fr; gap: 20px 16px; }
.cs-kpi-num {
  font-family: var(--font-display);
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.cs-kpi-label { margin-top: 5px; font-size: 12.5px; line-height: 1.45; color: var(--text-muted); }
.cs-results-foot {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px dashed var(--border-strong);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text-muted);
}

/* ---------- 13. Process ---------- */
.process-list {
  display: grid;
  gap: 16px;
  max-width: 880px;
  margin: 0 auto;
  position: relative;
}
.process-list::before {
  content: '';
  position: absolute;
  left: 35px;
  top: 30px;
  bottom: 30px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary), var(--violet), var(--accent));
  opacity: 0.4;
}
.proc-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  align-items: flex-start;
  padding: 24px 28px 24px 0;
  background: linear-gradient(90deg, var(--glass), transparent);
  border-radius: var(--r-lg);
  position: relative;
}
.proc-num {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--violet));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: #001827;
  box-shadow: 0 10px 30px -8px rgba(0, 217, 255, 0.4);
  position: relative;
  z-index: 1;
}
.proc-item h3 { font-size: 22px; margin-bottom: 8px; }
.proc-item p { color: var(--text-muted); font-size: 15px; line-height: 1.65; }

/* ---------- 14. Team ---------- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.member {
  background: linear-gradient(180deg, var(--surface), var(--bg-2));
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 32px 28px;
  text-align: center;
  transition: all .35s ease;
  position: relative;
  overflow: hidden;
}
.member::before {
  content: '';
  position: absolute;
  top: -80px;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 200px;
  border-radius: 50%;
  opacity: 0;
  transition: opacity .4s ease;
  filter: blur(60px);
  pointer-events: none;
}
.member:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
}
.member:hover::before { opacity: 0.7; }

.avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.02em;
  position: relative;
  border: 2px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 12px 32px -10px rgba(0, 0, 0, 0.5);
  overflow: hidden;
}
/* Cartoon portrait fills the whole avatar circle (clipped round by overflow:hidden) */
.avatar svg {
  width: 100%;
  height: 100%;
  display: block;
  transition: transform .45s cubic-bezier(.22, 1, .36, 1);
}
.member:hover .avatar svg { transform: scale(1.06); }
.avatar::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 1px dashed rgba(255, 255, 255, 0.15);
  pointer-events: none;
}
.avatar-1 { background: linear-gradient(135deg, #00d9ff, #7c5cff); }
.avatar-2 { background: linear-gradient(135deg, #ff6b35, #ffb700); }
.avatar-3 { background: linear-gradient(135deg, #10d9a0, #00d9ff); }
.avatar-4 { background: linear-gradient(135deg, #d946ef, #8b5cf6); }
.avatar-5 { background: linear-gradient(135deg, #8b5cf6, #ec4899); }
.avatar-6 { background: linear-gradient(135deg, #f97316, #d946ef); }

.member:nth-child(1):hover::before { background: var(--grad-glow-cyan); }
.member:nth-child(2):hover::before { background: var(--grad-glow-orange); }
.member:nth-child(3):hover::before { background: radial-gradient(circle, rgba(16, 217, 160, 0.35), transparent 70%); }
.member:nth-child(4):hover::before { background: radial-gradient(circle, rgba(217, 70, 239, 0.35), transparent 70%); }
.member:nth-child(5):hover::before { background: var(--grad-glow-violet); }
.member:nth-child(6):hover::before { background: var(--grad-glow-orange); }

.member h3 {
  font-size: 19px;
  margin-bottom: 4px;
  position: relative;
  z-index: 1;
}
.role {
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}
.member p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.65;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}
.member-skills {
  display: flex;
  gap: 6px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}
.member-skills span {
  padding: 4px 12px;
  border-radius: var(--r-pill);
  background: var(--glass);
  border: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
}

/* ---------- 15. CTA ---------- */
.cta-card {
  background: linear-gradient(135deg, rgba(0, 217, 255, 0.1), rgba(124, 92, 255, 0.08), rgba(255, 107, 53, 0.06));
  border: 1px solid rgba(0, 217, 255, 0.3);
  border-radius: var(--r-xl);
  padding: clamp(40px, 6vw, 80px);
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.cta-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(0, 217, 255, 0.2), transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(255, 107, 53, 0.18), transparent 50%);
  pointer-events: none;
}

.cta-content { position: relative; }
.cta-content h2 {
  font-size: clamp(28px, 4vw, 44px);
  margin: 16px 0 16px;
  line-height: 1.15;
}
.cta-content p {
  color: var(--text-muted);
  margin-bottom: 28px;
  font-size: 16px;
  line-height: 1.7;
  max-width: 520px;
}
.cta-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.cta-form {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: var(--inset-bg);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: clamp(22px, 3vw, 30px);
  backdrop-filter: blur(10px);
  color-scheme: dark;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.form-field { display: flex; flex-direction: column; gap: 7px; }
.form-field label {
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}
.form-field input,
.form-field select,
.form-field textarea {
  font: inherit;
  font-size: 14.5px;
  color: var(--text);
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 11px 14px;
  width: 100%;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.form-field textarea { resize: vertical; min-height: 96px; }
/* Popup dropdown do OS vẽ — ép màu tối tường minh để không bị chữ trắng trên nền trắng */
.form-field select { color-scheme: dark; }
.form-field select option {
  background-color: var(--bg-2);
  color: var(--text);
}
.form-field input::placeholder,
.form-field textarea::placeholder { color: var(--text-dim); }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: rgba(0, 217, 255, 0.55);
  box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.12);
}
.form-field .is-invalid,
.form-field input.is-invalid {
  border-color: rgba(255, 92, 92, 0.7);
  box-shadow: 0 0 0 3px rgba(255, 92, 92, 0.12);
}
.form-submit { justify-content: center; margin-top: 4px; }
.form-status {
  min-height: 20px;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--emerald);
}
.form-status.is-error { color: #ff8585; }

/* ---------- 16. Footer ---------- */
.footer {
  padding: 80px 0 0;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.3));
  margin-top: 60px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 2fr;
  gap: 60px;
  padding-bottom: 48px;
}
.footer-brand p {
  color: var(--text-muted);
  margin-top: 18px;
  max-width: 380px;
  font-size: 14.5px;
  line-height: 1.7;
}
.brand-footer { font-size: 22px; }
.brand-footer .brand-mark { height: 42px; }

/* Social icons */
.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 22px;
}
.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  background: var(--glass);
  border: 1px solid var(--border);
  transition: transform .25s ease, background .25s ease, color .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.footer-social a svg { width: 18px; height: 18px; }
.footer-social a:hover { transform: translateY(-3px); color: #fff; border-color: transparent; }
.footer-social a.s-li:hover { background: #0a66c2; box-shadow: 0 10px 22px -8px rgba(10, 102, 194, 0.7); }
.footer-social a.s-fb:hover { background: #1877f2; box-shadow: 0 10px 22px -8px rgba(24, 119, 242, 0.7); }
.footer-social a.s-yt:hover { background: #ff0033; box-shadow: 0 10px 22px -8px rgba(255, 0, 51, 0.6); }
.footer-social a.s-za:hover { background: #0068ff; box-shadow: 0 10px 22px -8px rgba(0, 104, 255, 0.7); }

.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.footer-col h4 {
  font-family: var(--font-display);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text);
  margin-bottom: 18px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col li, .footer-col a {
  color: var(--text-muted);
  font-size: 14px;
  transition: color .2s ease;
}
.footer-col a:hover { color: var(--accent-ink); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 24px 0;
}
.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text-dim);
}
.footer-meta { font-family: var(--font-mono); letter-spacing: 0.05em; }

/* ---------- 16b. Floating action buttons (contact + back-to-top) ---------- */
.fab-stack {
  position: fixed;
  right: clamp(14px, 2.4vw, 28px);
  bottom: clamp(14px, 2.4vw, 28px);
  z-index: 95;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}
.fab {
  position: relative;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 12px 28px -10px rgba(0, 0, 0, 0.45);
  transition: transform .25s ease, box-shadow .25s ease, opacity .3s ease, visibility .3s ease;
}
.fab svg { width: 24px; height: 24px; }
.fab:hover { transform: translateY(-3px) scale(1.06); box-shadow: 0 18px 36px -12px rgba(0, 0, 0, 0.5); }
.fab:active { transform: scale(0.95); }
.fab:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.5); }

.fab-zalo { background: #0068ff; }
.fab-phone { background: linear-gradient(135deg, var(--primary), #00b8e6); color: #001827; }
.fab-email,
.fab-top {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border-strong);
}

/* Back-to-top reserves its slot (no layout shift) but stays hidden until scrolled */
.fab-top {
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px) scale(0.85);
}
.fab-top.is-shown {
  opacity: 1;
  visibility: visible;
  transform: none;
}

/* Attention ripple on the Zalo button */
.fab-zalo::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  animation: fabPulse 2.2s ease-out infinite;
  pointer-events: none;
}
@keyframes fabPulse {
  0% { box-shadow: 0 0 0 0 rgba(0, 104, 255, 0.5); }
  70% { box-shadow: 0 0 0 14px rgba(0, 104, 255, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 104, 255, 0); }
}

@media (max-width: 760px) {
  .fab { width: 46px; height: 46px; }
  .fab svg { width: 21px; height: 21px; }
  .fab-stack { gap: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  .fab-zalo::after { animation: none; }
}
@media print {
  .fab-stack { display: none !important; }
}

/* ---------- 17. Reveal animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .9s cubic-bezier(.22,1,.36,1), transform .9s cubic-bezier(.22,1,.36,1);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  .orb, .pulse-dot, .marquee-track, .hex { animation: none !important; }
}

/* Print / PDF export: mọi nội dung phải hiển thị, bỏ hiệu ứng nền */
@media print {
  .reveal { opacity: 1 !important; transform: none !important; }
  .bg-grid, .bg-orbs, .bg-noise, .hero-visual { display: none !important; }
  .nav { position: static; }
}

/* ---------- 18. Responsive ---------- */
@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-card { grid-template-columns: 1fr; }
  .cs-card { grid-template-columns: 1fr; }
  .ind-featured { grid-column: span 1; }
  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 760px) {
  .nav-links { display: none; }
  .nav.is-open .nav-links {
    display: flex;
    position: absolute;
    top: 100%;
    left: 16px;
    right: 16px;
    margin-top: 8px;
    padding: 14px;
    flex-direction: column;
    align-items: stretch;
    background: var(--nav-bg-solid);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-strong);
    border-radius: var(--r-md);
  }
  .nav.is-open .nav-links a {
    padding: 12px 14px;
    text-align: left;
  }
  .nav-burger { display: flex; }
  .nav.is-open .nav-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav.is-open .nav-burger span:nth-child(2) { opacity: 0; }
  .nav.is-open .nav-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .hero { padding: 120px 0 60px; min-height: auto; }
  .hero-title { font-size: clamp(30px, 8vw, 44px); }
  .hero-ctas { flex-direction: column; align-items: stretch; }
  .hero-ctas .btn { justify-content: center; }

  .footer-cols { grid-template-columns: 1fr 1fr; gap: 28px; }
  .proc-item { grid-template-columns: 56px 1fr; gap: 16px; padding: 18px 18px 18px 0; }
  .proc-num { width: 56px; height: 56px; font-size: 18px; }
  .process-list::before { left: 27px; }

  .nav-actions .btn { display: none; }
  .hero-visual { display: none; }

  /* Keep the brand lockup on one tidy line once the nav collapses */
  .nav-inner { gap: 14px; }
  .brand { gap: 8px; }
  .brand-name { white-space: nowrap; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .footer-cols { grid-template-columns: 1fr; }
  .cta-actions { flex-direction: column; }
  .cta-actions .btn { justify-content: center; }
  .filter-bar { gap: 6px; }
  .filter-btn { padding: 8px 14px; font-size: 13px; }
  .form-row { grid-template-columns: 1fr; }
  .cs-kpis { gap: 16px 12px; }

  /* Compact the brand + language switch so everything fits a phone nav bar.
     Flags are decorative — the VI / EN labels carry the meaning. */
  .brand-name { font-size: 15px; }
  .brand-mark { height: 30px; }
  .nav-actions { gap: 10px; }
  .lang-toggle { padding: 7px 11px; }
  .lang-toggle .flag { display: none; }
}