/* =========================================================
   BinForce Technology — brand site
   Palette: paper white / deep forest ink / signal green
   ========================================================= */

:root {
  --ink: #071410;
  --ink-soft: #25352f;
  --muted: #5d6b65;
  --line: #e1e8e3;
  --line-strong: #cfd9d2;
  --paper: #ffffff;
  --bg: #f5f8f5;
  --accent: #00d959;
  --accent-soft: #d9fbe6;
  --accent-deep: #007a64;
  --accent-ink: #04352a;

  --font: "Inter", "Noto Sans HK", "Noto Sans TC", -apple-system, BlinkMacSystemFont,
          "Segoe UI", "PingFang HK", "Microsoft JhengHei", sans-serif;

  --max: 1180px;
  --nav-h: 78px;
  --radius: 22px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
p { margin: 0; }
h1, h2, h3, h4 { margin: 0; line-height: 1.15; letter-spacing: -0.02em; font-weight: 700; }
ul, ol, dl, dd { margin: 0; padding: 0; }
li { list-style: none; }
figure { margin: 0; }
button { font: inherit; }

::selection { background: var(--accent); color: #04251b; }

:focus-visible {
  outline: 2px solid var(--accent-deep);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: clamp(20px, 4.5vw, 40px);
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 200;
  padding: 12px 18px;
  background: var(--accent);
  color: #04251b;
  font-weight: 600;
  border-radius: 10px;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 14px; }

/* ---------------------------------------------------------
   Header
   --------------------------------------------------------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  color: #fff;
  transition: background 0.35s var(--ease), box-shadow 0.35s var(--ease),
              color 0.35s var(--ease), backdrop-filter 0.35s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(251, 253, 251, 0.9);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  backdrop-filter: saturate(180%) blur(16px);
  color: var(--ink);
  box-shadow: 0 1px 0 rgba(7, 20, 16, 0.07);
}

.nav-inner {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
}
.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  box-shadow: 0 4px 14px -6px rgba(0, 217, 89, 0.55);
}
.brand-text strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.2;
}
.brand-text small {
  display: block;
  margin-top: 3px;
  font-size: 0.56rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  opacity: 0.68;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links > a:not(.btn) {
  position: relative;
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.76);
  transition: color 0.25s var(--ease);
}
.nav-links > a:not(.btn)::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -7px;
  width: 100%;
  height: 1.5px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.nav-links > a:not(.btn):hover { color: #fff; }
.nav-links > a:not(.btn):hover::after { transform: scaleX(1); }
.nav-links > a:not(.btn)[aria-current="true"] { color: #fff; }
.nav-links > a:not(.btn)[aria-current="true"]::after { transform: scaleX(1); }

.site-header.is-scrolled .nav-links > a:not(.btn) { color: var(--muted); }
.site-header.is-scrolled .nav-links > a:not(.btn):hover,
.site-header.is-scrolled .nav-links > a:not(.btn)[aria-current="true"] { color: var(--ink); }

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 600;
  line-height: 1;
}
.lang-switch > a,
.lang-switch > span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  padding: 6px 9px;
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.66);
  transition: background 0.25s var(--ease), color 0.25s var(--ease);
}
.lang-switch > a:hover { color: #fff; }
.lang-switch .is-current {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}
.site-header.is-scrolled .lang-switch { border-color: var(--line-strong); }
.site-header.is-scrolled .lang-switch > a,
.site-header.is-scrolled .lang-switch > span { color: var(--muted); }
.site-header.is-scrolled .lang-switch .is-current {
  background: rgba(4, 53, 42, 0.07);
  color: var(--accent-ink);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  border-radius: 12px;
  background: transparent;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6px;
}
.menu-toggle span {
  display: block;
  width: 20px;
  height: 1.8px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}
.site-header.menu-open .menu-toggle span:first-child { transform: translateY(3.9px) rotate(45deg); }
.site-header.menu-open .menu-toggle span:last-child { transform: translateY(-3.9px) rotate(-45deg); }

/* ---------------------------------------------------------
   Buttons
   --------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.94rem;
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease),
              border-color 0.25s var(--ease), box-shadow 0.25s var(--ease), color 0.25s var(--ease);
}
.btn-solid {
  background: var(--accent);
  color: #04251b;
  box-shadow: 0 12px 32px -14px rgba(0, 217, 89, 0.7);
}
.btn-solid:hover {
  background: #23e775;
  transform: translateY(-2px);
  box-shadow: 0 18px 40px -16px rgba(0, 217, 89, 0.75);
}
.btn-ghost {
  border-color: rgba(255, 255, 255, 0.24);
  background: rgba(255, 255, 255, 0.03);
  color: #fff;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
}
.btn-sm { padding: 10px 18px; font-size: 0.84rem; }
.btn-lg { padding: 17px 32px; font-size: 1rem; }

/* ---------------------------------------------------------
   Shared type
   --------------------------------------------------------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 20px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-deep);
}
.eyebrow .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(0, 217, 89, 0.14);
}
.eyebrow-light { color: rgba(255, 255, 255, 0.62); }

.grad {
  background: linear-gradient(100deg, #00d959 5%, #7bf7b0 55%, #2ee091 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------------------------------------------------------
   Hero
   --------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  padding-top: calc(var(--nav-h) + 42px);
  background: #04100c;
  color: #fff;
  isolation: isolate;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(900px 620px at 78% 8%, rgba(0, 217, 89, 0.22), transparent 62%),
    radial-gradient(760px 560px at 6% 88%, rgba(0, 141, 116, 0.24), transparent 66%),
    radial-gradient(500px 400px at 50% 45%, rgba(0, 217, 89, 0.06), transparent 70%),
    linear-gradient(180deg, #04100c 0%, #07150f 58%, #06120e 100%);
}
.hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 68px 68px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 0%, transparent 78%);
  mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 0%, transparent 78%);
  opacity: 0.75;
}
.hero-bg::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -55%;
  width: 1100px;
  height: 700px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgba(0, 217, 89, 0.1), transparent 65%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: clamp(30px, 4.5vw, 60px);
  padding-bottom: clamp(48px, 7vw, 92px);
  min-height: min(76vh, 700px);
}

.hero-copy { max-width: 620px; }

.hero h1 {
  font-size: clamp(2.65rem, 5.6vw, 4.5rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
  font-weight: 800;
}
.hero .lead {
  margin-top: 26px;
  max-width: 540px;
  font-size: clamp(0.98rem, 1.2vw, 1.08rem);
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.66);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(22px, 3.4vw, 46px);
  margin-top: 46px;
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.hero-facts dt {
  font-size: 0.86rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.92);
  letter-spacing: 0.01em;
}
.hero-facts dd {
  margin-top: 4px;
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.56);
}

/* Hero visual */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30px 0;
  min-height: 460px;
}
.orb {
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, rgba(0, 217, 89, 0.32), rgba(0, 141, 116, 0.12) 45%, transparent 70%);
  filter: blur(30px);
  animation: pulse 9s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.85; }
  50% { transform: scale(1.08); opacity: 1; }
}

.phone {
  position: relative;
  z-index: 2;
  background: linear-gradient(155deg, #2a3d35 0%, #0a1612 46%, #1d2d27 100%);
  padding: 9px;
  border-radius: 40px;
  box-shadow:
    0 50px 90px -34px rgba(0, 0, 0, 0.85),
    0 0 0 1px rgba(255, 255, 255, 0.13),
    inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}
.phone::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(150deg, rgba(255, 255, 255, 0.16), transparent 32%);
  pointer-events: none;
  z-index: 3;
}
.phone-screen {
  position: relative;
  border-radius: 32px;
  overflow: hidden;
  background: #fff;
  transform: translateZ(0);
}
.phone-screen img { display: block; width: 100%; height: auto; }

.phone-hero {
  width: min(300px, 72%);
  animation: float 7.5s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0.4deg); }
  50% { transform: translateY(-14px) rotate(-0.6deg); }
}

.float-chip {
  position: absolute;
  z-index: 4;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 15px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(9, 25, 19, 0.66);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.88);
  box-shadow: 0 16px 30px -18px rgba(0, 0, 0, 0.9);
  animation: chipFloat 6.5s ease-in-out infinite;
  white-space: nowrap;
}
.chip-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px rgba(0, 217, 89, 0.9);
}
.chip-1 { top: 16%; left: 0; animation-delay: -0.8s; }
.chip-2 { top: 48%; right: -2%; animation-delay: -2.6s; }
.chip-3 { bottom: 13%; left: 2%; animation-delay: -4.2s; }
@keyframes chipFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-9px); }
}

/* Marquee */
.marquee {
  position: relative;
  overflow: hidden;
  padding: 20px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.marquee-track {
  display: flex;
  align-items: center;
  gap: 44px;
  width: max-content;
  animation: marquee 46s linear infinite;
}
.marquee-track span {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.24em;
  color: rgba(255, 255, 255, 0.5);
  white-space: nowrap;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------------------------------------------------------
   Sections
   --------------------------------------------------------- */
.section { padding: clamp(76px, 9vw, 128px) 0; }

.about { background: var(--bg); }
.services { background: var(--paper); }

.section-head { max-width: 760px; }
.section-head h2 {
  font-size: clamp(2rem, 3.7vw, 3.15rem);
  line-height: 1.14;
  letter-spacing: -0.03em;
}
.section-lead {
  margin-top: 20px;
  max-width: 620px;
  font-size: clamp(0.98rem, 1.15vw, 1.05rem);
  line-height: 1.85;
  color: var(--muted);
}

.section-head-row {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  align-items: end;
  gap: 40px;
  max-width: none;
  margin-bottom: clamp(40px, 5vw, 64px);
}
.section-head-row .section-lead-right {
  margin-top: 0;
  padding-bottom: 6px;
  max-width: 380px;
  justify-self: end;
}

/* Values */
.values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: clamp(40px, 5vw, 64px);
}
.value-card {
  position: relative;
  padding: 32px 28px 34px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
}
.value-card:hover {
  transform: translateY(-5px);
  border-color: #c8e9d5;
  box-shadow: 0 28px 50px -34px rgba(7, 20, 16, 0.28);
}
.value-index {
  display: inline-block;
  margin-bottom: 22px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--accent-deep);
}
.value-card h3 { font-size: 1.16rem; margin-bottom: 10px; }
.value-card p { font-size: 0.93rem; line-height: 1.8; color: var(--muted); }

/* Services */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.service-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 30px 28px 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfdfb;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease),
              border-color 0.4s var(--ease), background 0.4s var(--ease);
}
.service-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(420px 220px at 85% 0%, rgba(0, 217, 89, 0.09), transparent 70%);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
  pointer-events: none;
}
.service-card:hover {
  transform: translateY(-5px);
  border-color: #c8e9d5;
  background: #fff;
  box-shadow: 0 30px 56px -38px rgba(7, 20, 16, 0.34);
}
.service-card:hover::after { opacity: 1; }

.service-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  margin-bottom: 22px;
  border-radius: 13px;
  background: rgba(0, 217, 89, 0.09);
  color: var(--accent-deep);
}
.service-icon svg { width: 23px; height: 23px; }
.service-card h3 { font-size: 1.13rem; margin-bottom: 10px; }
.service-card p {
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--muted);
  margin-bottom: 22px;
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}
.tags li {
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.67rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: #6b7a73;
  background: #fff;
}

/* ---------------------------------------------------------
   Product
   --------------------------------------------------------- */
.product {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: #05100c;
  isolation: isolate;
}
.product::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 80px 80px;
  -webkit-mask-image: radial-gradient(ellipse 75% 65% at 50% 45%, #000, transparent 78%);
  mask-image: radial-gradient(ellipse 75% 65% at 50% 45%, #000, transparent 78%);
}
.product-glow {
  position: absolute;
  top: -10%;
  right: -10%;
  width: 720px;
  height: 720px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 217, 89, 0.16), transparent 66%);
  filter: blur(20px);
  pointer-events: none;
}

.product-head {
  display: grid;
  grid-template-columns: 1fr 0.85fr;
  align-items: end;
  gap: 40px;
  margin-bottom: clamp(44px, 6vw, 76px);
}
.product-head h2 {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.035em;
}
.product-logo {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  box-shadow: 0 10px 26px -10px rgba(0, 217, 89, 0.65), 0 0 0 1px rgba(255, 255, 255, 0.12);
}
.product-en {
  font-size: 0.34em;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.42);
  text-transform: uppercase;
}
.product-lead {
  margin-top: 0;
  max-width: 420px;
  justify-self: end;
  padding-bottom: 8px;
  color: rgba(255, 255, 255, 0.6);
}

.product-body {
  display: grid;
  grid-template-columns: minmax(0, 0.76fr) minmax(0, 1.24fr);
  gap: clamp(30px, 5vw, 60px);
  align-items: center;
}
.product-body > * { min-width: 0; }

.feature {
  padding: 22px 0 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.feature:first-child { padding-top: 0; border-top: 0; }
.feature h3 {
  font-size: 1.02rem;
  margin-bottom: 7px;
  color: rgba(255, 255, 255, 0.95);
}
.feature p {
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.52);
}
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 26px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  transition: gap 0.25s var(--ease), color 0.25s var(--ease);
}
.link-arrow:hover { gap: 14px; color: #4df08d; }

.product-phones {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(10px, 2vw, 22px);
  padding: 24px 0 40px;
}
.phone-product {
  width: 31%;
  max-width: 240px;
  padding: 6px;
  border-radius: 30px;
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease);
}
.phone-product .phone-screen { border-radius: 24px; }
.phone-product figcaption {
  position: absolute;
  left: 50%;
  bottom: -34px;
  transform: translateX(-50%);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.56);
  white-space: nowrap;
}
.phone-product.p1 { transform: translateY(10px) rotate(-3.2deg); }
.phone-product.p2 { transform: translateY(40px); z-index: 3; }
.phone-product.p3 { transform: translateY(10px) rotate(3.2deg); }
.phone-product:hover { transform: translateY(0) rotate(0deg); box-shadow: 0 60px 100px -40px rgba(0, 217, 89, 0.35); }


/* ---------------------------------------------------------
   Security architecture
   --------------------------------------------------------- */
.security {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #edf6f0 0%, #f4f9f5 100%);
}
.security::after {
  content: "";
  position: absolute;
  top: -160px;
  right: -120px;
  width: 540px;
  height: 540px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 217, 89, 0.13), transparent 66%);
  filter: blur(16px);
  pointer-events: none;
}
.security > .wrap { position: relative; z-index: 1; }

.security-head {
  display: grid;
  grid-template-columns: 1fr 0.82fr;
  align-items: end;
  gap: 40px;
  margin-bottom: clamp(36px, 4.6vw, 56px);
}
.security-head h2 {
  font-size: clamp(2rem, 3.7vw, 3.15rem);
  line-height: 1.14;
  letter-spacing: -0.03em;
}
.security-lead {
  margin-top: 0;
  max-width: 430px;
  justify-self: end;
  padding-bottom: 6px;
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.security-card {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 30px 28px 32px;
  border: 1px solid #d8e9df;
  border-radius: var(--radius);
  background: #fff;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
}
.security-card:hover {
  transform: translateY(-4px);
  border-color: #bfe3cc;
  box-shadow: 0 30px 54px -38px rgba(7, 20, 16, 0.32);
}
.security-card.is-primary {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(155deg, #08241b 0%, #04120e 58%, #0a2a1f 100%);
  box-shadow: 0 30px 60px -40px rgba(4, 18, 14, 0.7);
}
.security-card.is-primary::after {
  content: "";
  position: absolute;
  top: -100px;
  right: -90px;
  width: 270px;
  height: 270px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 217, 89, 0.3), transparent 65%);
  pointer-events: none;
}
.security-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  margin-bottom: 24px;
  border-radius: 13px;
  background: rgba(0, 217, 89, 0.1);
  color: var(--accent-deep);
}
.security-icon svg { width: 23px; height: 23px; }
.is-primary .security-icon {
  background: rgba(0, 217, 89, 0.16);
  color: #63f3a1;
}
.security-tag {
  display: block;
  margin-bottom: 12px;
  font-size: 0.61rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--accent-deep);
}
.is-primary .security-tag { color: #56ea96; }
.security-card h3 { font-size: 1.13rem; margin-bottom: 10px; }
.security-card p {
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--muted);
}
.is-primary p { color: rgba(255, 255, 255, 0.66); }

.security-note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid #d9e9df;
  font-size: 0.82rem;
  color: #5d6b65;
}
.security-note .link-arrow {
  margin-top: 0;
  color: var(--accent-deep);
}
.security-note .link-arrow:hover { color: var(--accent-ink); }

/* ---------------------------------------------------------
   Process
   --------------------------------------------------------- */
.process { background: var(--bg); }

.steps {
  max-width: 900px;
  margin-top: clamp(36px, 5vw, 58px);
}
.step {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 24px;
  padding: 28px 0 30px;
  border-top: 1px solid var(--line-strong);
  transition: background 0.3s var(--ease);
}
.step:last-child { border-bottom: 1px solid var(--line-strong); }
.step-num {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--accent-deep);
  padding-top: 4px;
}
.step h3 {
  font-size: 1.25rem;
  margin-bottom: 8px;
}
.step h3 em {
  font-style: normal;
  font-size: 0.62em;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #6b7a73;
  margin-left: 10px;
}
.step p {
  max-width: 620px;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--muted);
}

.engagement {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: clamp(40px, 5vw, 60px);
}
.engagement article {
  padding: 26px 26px 28px;
  background: linear-gradient(180deg, #f0faf4, #f7fbf8);
  border: 1px solid #dbeee2;
  border-radius: 18px;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.engagement article:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 40px -32px rgba(4, 53, 42, 0.35);
}
.engagement h3 { font-size: 1rem; margin-bottom: 8px; color: var(--accent-ink); }
.engagement p { font-size: 0.88rem; line-height: 1.75; color: #55685f; }

/* ---------------------------------------------------------
   Contact
   --------------------------------------------------------- */
.contact {
  padding: 24px 0 clamp(72px, 8vw, 104px);
  background: var(--bg);
}
.contact-card {
  position: relative;
  overflow: hidden;
  padding: clamp(44px, 6.5vw, 84px);
  border-radius: clamp(24px, 3vw, 34px);
  background: #06120e;
  color: #fff;
  isolation: isolate;
}
.contact-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  -webkit-mask-image: radial-gradient(ellipse 70% 80% at 75% 30%, #000, transparent 75%);
  mask-image: radial-gradient(ellipse 70% 80% at 75% 30%, #000, transparent 75%);
}
.contact-glow {
  position: absolute;
  right: -8%;
  top: -40%;
  width: 620px;
  height: 620px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 217, 89, 0.24), transparent 62%);
  filter: blur(10px);
  z-index: -1;
}
.contact-card h2 {
  max-width: 760px;
  font-size: clamp(2.1rem, 4.6vw, 3.7rem);
  line-height: 1.1;
  letter-spacing: -0.035em;
}
.contact-lead {
  margin-top: 22px;
  max-width: 520px;
  font-size: clamp(0.96rem, 1.1vw, 1.03rem);
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.62);
}
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}
.contact-meta {
  margin-top: 28px;
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.56);
}

/* ---------------------------------------------------------
   Footer
   --------------------------------------------------------- */
.site-footer {
  padding: clamp(52px, 6vw, 76px) 0 28px;
  background: #04100c;
  color: rgba(255, 255, 255, 0.72);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr 1fr 1.1fr;
  gap: 40px;
}
.footer-brand .brand { margin-bottom: 16px; }
.footer-brand p {
  max-width: 260px;
  font-size: 0.86rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.52);
}
.footer-col h3 {
  margin-bottom: 16px;
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.52);
}
.footer-col > a,
.footer-col > span {
  display: block;
  margin-bottom: 10px;
  font-size: 0.87rem;
  color: rgba(255, 255, 255, 0.68);
  transition: color 0.25s var(--ease);
}
.footer-col > a:hover { color: var(--accent); }
.footer-lang {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.78rem;
}
.footer-lang a { color: rgba(255, 255, 255, 0.5); }
.footer-lang a:hover { color: var(--accent); }
.footer-lang span[aria-current="true"] { color: rgba(255, 255, 255, 0.9); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(38px, 5vw, 56px);
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.09);
  font-size: 0.73rem;
  color: rgba(255, 255, 255, 0.48);
}
.footer-note { color: rgba(255, 255, 255, 0.5); }

/* ---------------------------------------------------------
   Reveal animation
   --------------------------------------------------------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
}
.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------------------------------------------------------
   Responsive
   --------------------------------------------------------- */
@media (max-width: 1080px) {
  .nav-links { gap: 20px; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-col:last-child { grid-column: 2 / -1; }
}

@media (max-width: 980px) {
  .menu-toggle { display: flex; }

  .nav-links {
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 14px 24px 26px;
    background: #fff;
    color: var(--ink);
    border-radius: 0 0 22px 22px;
    box-shadow: 0 30px 60px -30px rgba(7, 20, 16, 0.3);
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
    max-height: calc(100vh - var(--nav-h));
    overflow-y: auto;
  }
  .nav-links > a:not(.btn) {
    padding: 14px 2px;
    border-bottom: 1px solid var(--line);
    color: var(--ink-soft);
    font-size: 0.98rem;
  }
  .nav-links > a:not(.btn)[aria-current="true"] { color: var(--accent-ink); }
  .nav-links > a:not(.btn)::after { display: none; }
  .lang-switch {
    align-self: flex-start;
    margin: 18px 0 6px;
    border-color: var(--line-strong);
  }
  .lang-switch > a,
  .lang-switch > span { color: var(--muted); }
  .lang-switch .is-current { background: rgba(4, 53, 42, 0.07); color: var(--accent-ink); }
  .nav-cta { margin-top: 12px; align-self: stretch; }

  .site-header.menu-open {
    background: #fff;
    color: var(--ink);
    box-shadow: 0 1px 0 rgba(7, 20, 16, 0.07);
  }
  .site-header.menu-open .nav-links {
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    min-height: 0;
    padding-top: 18px;
    gap: 40px;
  }
  .hero-copy { max-width: 640px; }
  .hero-visual { min-height: 420px; padding: 10px 0 0; }
  .phone-hero { width: min(270px, 62%); }
  .chip-1 { left: 6%; }
  .chip-2 { right: 5%; }
  .chip-3 { left: 10%; bottom: 8%; }

  .section-head-row { grid-template-columns: 1fr; gap: 18px; align-items: start; }
  .section-head-row .section-lead-right { justify-self: start; max-width: 560px; padding-bottom: 0; }

  .security-head { grid-template-columns: 1fr; gap: 18px; align-items: start; }
  .security-lead { justify-self: start; max-width: 600px; padding-bottom: 0; }
  .security-grid { grid-template-columns: 1fr 1fr; }
  .security-card.is-primary { grid-column: 1 / -1; }

  .values { grid-template-columns: 1fr; }
  .value-card { padding: 28px 24px; }
  .value-index { margin-bottom: 14px; }

  .product-head { grid-template-columns: 1fr; gap: 20px; }
  .product-head h2 { font-size: clamp(2.2rem, 7vw, 3rem); }
  .product-logo { width: 46px; height: 46px; border-radius: 12px; }
  .product-lead { justify-self: start; max-width: 560px; padding-bottom: 0; }
  .product-body { grid-template-columns: 1fr; gap: 26px; }
  .product-features { display: grid; grid-template-columns: 1fr 1fr; gap: 0 28px; }
  .link-arrow { grid-column: 1 / -1; }
  .product-phones { padding-top: 30px; }

  .engagement { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .hero h1 { font-size: clamp(2.4rem, 10vw, 3.2rem); }
  .hero-facts { gap: 20px 26px; }
  .hero-facts > div { min-width: calc(50% - 26px); }
  .hero-visual { min-height: 380px; }
  .phone-hero { width: min(240px, 64%); }
  .float-chip { font-size: 0.66rem; padding: 8px 12px; }
  .chip-2 { right: 0; }

  .services .section-head h2 br,
  .br-mobile { display: none; }

  .service-grid { grid-template-columns: 1fr; }
  .security-grid { grid-template-columns: 1fr; }
  .security-card.is-primary { grid-column: auto; }
  .product-features { grid-template-columns: 1fr; }
  .feature:first-child { padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, 0.1); }

  .product-phones {
    gap: 14px;
    justify-content: flex-start;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding: 30px 4px 46px;
    margin-inline: -4px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .product-phones::-webkit-scrollbar { display: none; }
  .phone-product {
    width: 47%;
    min-width: 168px;
    flex-shrink: 0;
    scroll-snap-align: center;
    transform: none !important;
    padding: 5px;
    border-radius: 26px;
  }
  .phone-product .phone-screen { border-radius: 21px; }
  .phone-product figcaption { bottom: -30px; }

  .step { grid-template-columns: 52px 1fr; gap: 14px; }
  .step h3 { font-size: 1.1rem; }
  .step h3 em { display: block; margin: 4px 0 0; }

  .contact-actions { flex-direction: column; align-items: stretch; }
  .contact-actions .btn { width: 100%; }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-col:last-child { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; }
}

@media (max-width: 420px) {
  .hero-facts > div { min-width: 100%; }
  .float-chip.chip-1 { left: -2%; }
  .float-chip.chip-3 { display: none; }
}

/* ---------------------------------------------------------
   Motion / contrast preferences
   --------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .js [data-reveal] { opacity: 1; transform: none; }
  .phone-hero, .float-chip, .orb, .marquee-track { animation: none !important; }
}