/* =========================================================================
   ChennaiTech — Design System
   Palette: Professional blue (#1E40AF) + amber CTA  ·  Poppins + Inter
   Mobile-first, accessible (WCAG AA), performance-minded.
   ========================================================================= */

/* ---------- Design Tokens ---------- */
:root {
  /* Brand / blues */
  --navy-900:#081A3A; --navy-800:#0C2350; --navy-700:#123069; --navy-600:#16407F;
  --blue-700:#1E40AF; --blue-600:#1D4ED8; --blue-500:#2563EB; --blue-400:#3B82F6;
  --brand:#1565C0;   --brand-soft:#E8F1FC;
  /* Accent (amber / orange CTA) */
  --amber-500:#F59E0B; --amber-400:#FBBF24; --amber-600:#D97706; --orange-600:#EA580C;
  /* Aqua (water purifiers) */
  --aqua-500:#06B6D4; --aqua-600:#0891B2;
  /* Greens */
  --wa:#25D366; --wa-dark:#1EBE5D; --success:#15803D;
  /* Ink / neutrals */
  --ink-900:#0F172A; --ink-800:#1E293B; --ink-700:#334155; --ink-600:#475569;
  --ink-500:#64748B; --ink-400:#94A3B8;
  --line:#E2E8F0; --line-2:#EDF2F8; --line-blue:#DBE7FB;
  --bg:#F4F8FD; --bg-2:#ECF3FB; --surface:#FFFFFF; --surface-2:#F8FBFF;
  --danger:#DC2626;

  /* Typography */
  --font-head:'Poppins', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-body:'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  /* Radii */
  --r-xs:8px; --r-sm:12px; --r:16px; --r-lg:22px; --r-xl:30px; --r-pill:999px;

  /* Shadows */
  --sh-xs:0 1px 2px rgba(15,23,42,.06);
  --sh-sm:0 2px 8px rgba(15,23,42,.07);
  --sh:0 8px 24px rgba(15,23,42,.09);
  --sh-md:0 14px 38px rgba(15,40,90,.12);
  --sh-lg:0 26px 60px rgba(10,30,75,.18);
  --sh-blue:0 16px 40px rgba(30,64,175,.22);
  --sh-amber:0 12px 30px rgba(217,119,6,.32);

  /* Layout */
  --container:1200px;
  --gutter:clamp(16px, 4vw, 40px);
  --section-y:clamp(56px, 8vw, 104px);
  --header-h:74px;

  /* Z-index scale */
  --z-header:100; --z-drawer:200; --z-fab:150; --z-top:1000;
}

/* ---------- Reset / Base ---------- */
*,*::before,*::after { box-sizing:border-box; }
* { margin:0; }
html { -webkit-text-size-adjust:100%; scroll-behavior:smooth; overflow-x:clip; }
@media (prefers-reduced-motion:reduce){ html{ scroll-behavior:auto; } }
body {
  font-family:var(--font-body); color:var(--ink-700); background:var(--bg);
  font-size:16px; line-height:1.65; -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility; overflow-x:clip;
}
img,svg,video { display:block; max-width:100%; height:auto; }
a { color:inherit; text-decoration:none; }
ul { list-style:none; padding:0; }
button { font:inherit; color:inherit; cursor:pointer; background:none; border:none; }
input,select,textarea { font:inherit; color:inherit; }
:focus-visible { outline:3px solid var(--blue-400); outline-offset:2px; border-radius:4px; }
/* Higher-contrast focus ring on amber CTAs (blue ring fails 3:1 on amber) */
.btn--primary:focus-visible { outline-color:var(--navy-900); }
h1,h2,h3,h4 { font-family:var(--font-head); color:var(--ink-900); line-height:1.18; font-weight:700; letter-spacing:-.01em; }

/* ---------- Layout helpers ---------- */
.container { width:100%; max-width:var(--container); margin-inline:auto; padding-inline:var(--gutter); }
.section { padding-block:var(--section-y); }
.section--tight { padding-block:clamp(40px,6vw,72px); }
.bg-alt { background:var(--bg-2); }
.bg-white { background:var(--surface); }
.text-center { text-align:center; }
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }
.skip-link { position:absolute; left:16px; top:-60px; z-index:var(--z-top); background:var(--blue-700); color:#fff; padding:10px 18px; border-radius:0 0 12px 12px; transition:top .2s; }
.skip-link:focus { top:0; }

/* Icon sizing tokens */
.ic { width:24px; height:24px; flex:none; }
.ic-sm { width:18px; height:18px; flex:none; }
.ic-xs { width:15px; height:15px; flex:none; }
.ic-lg { width:30px; height:30px; flex:none; }

/* ---------- Buttons ---------- */
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:9px;
  font-family:var(--font-head); font-weight:600; font-size:.97rem; line-height:1;
  padding:14px 24px; border-radius:var(--r-pill); border:1.5px solid transparent;
  cursor:pointer; transition:transform .18s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
  white-space:nowrap; text-align:center;
}
.btn:active { transform:translateY(1px) scale(.99); }
.btn--primary { background:linear-gradient(135deg,var(--amber-400),var(--amber-600)); color:#3a2400; box-shadow:var(--sh-amber); }
.btn--primary:hover { box-shadow:0 16px 36px rgba(217,119,6,.42); transform:translateY(-2px); }
.btn--blue { background:linear-gradient(135deg,var(--blue-500),var(--blue-700)); color:#fff; box-shadow:var(--sh-blue); }
.btn--blue:hover { transform:translateY(-2px); box-shadow:0 20px 46px rgba(30,64,175,.32); }
.btn--wa { background:var(--wa); color:#06351b; box-shadow:0 10px 24px rgba(37,211,102,.32); }
.btn--wa:hover { background:var(--wa-dark); transform:translateY(-2px); }
.btn--outline { border-color:var(--line-blue); color:var(--blue-700); background:var(--surface); }
.btn--outline:hover { border-color:var(--blue-500); background:var(--brand-soft); transform:translateY(-2px); }
.btn--ghost-light { border-color:rgba(255,255,255,.4); color:#fff; }
.btn--ghost-light:hover { background:rgba(255,255,255,.12); border-color:#fff; }
.btn--sm { padding:10px 16px; font-size:.88rem; }
.btn--lg { padding:17px 32px; font-size:1.05rem; }
.btn--block { width:100%; }

/* ---------- Eyebrow / Section head ---------- */
.eyebrow {
  display:inline-flex; align-items:center; gap:8px; font-family:var(--font-head);
  font-weight:600; font-size:.78rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--blue-700); background:var(--brand-soft); padding:7px 15px; border-radius:var(--r-pill);
}
.eyebrow .ic-sm { color:var(--amber-600); }
.sec-head { max-width:680px; margin-bottom:clamp(28px,4vw,48px); }
.sec-head.center { margin-inline:auto; text-align:center; }
.sec-head .eyebrow { margin-bottom:16px; }
.sec-title { font-size:clamp(1.7rem,4.2vw,2.7rem); font-weight:800; color:var(--ink-900); }
.sec-title em { font-style:normal; color:var(--blue-700); }
.sec-sub { margin-top:14px; font-size:1.05rem; color:var(--ink-600); }

/* =========================================================================
   TOP BAR
   ========================================================================= */
.topbar {
  background:linear-gradient(90deg,var(--navy-900),var(--navy-700));
  color:#dbe7fb; font-size:.86rem;
}
.topbar__inner { display:flex; align-items:center; justify-content:space-between; gap:18px; min-height:42px; padding-block:6px; }
.topbar__list { display:flex; align-items:center; gap:22px; flex-wrap:wrap; }
.topbar a { display:inline-flex; align-items:center; gap:7px; color:#dbe7fb; transition:color .2s; }
.topbar a:hover { color:#fff; }
.topbar .ic-sm { color:var(--amber-400); }
.topbar__social { display:flex; gap:8px; }
.topbar__social a { width:30px; height:30px; border-radius:50%; background:rgba(255,255,255,.1); justify-content:center; }
.topbar__social a:hover { background:var(--amber-500); color:var(--navy-900); }
.topbar__right { display:flex; align-items:center; gap:14px; }
@media (max-width:860px){ .topbar__hide-sm { display:none; } }
@media (max-width:560px){ .topbar__inner{ justify-content:space-between; gap:10px; } .topbar__social{ display:none; } }

/* ---------- Language switcher ---------- */
.lang-switch { position:relative; }
.lang-switch__btn { display:inline-flex; align-items:center; gap:6px; color:#eaf2ff; font-family:var(--font-head);
  font-weight:600; font-size:.82rem; padding:5px 11px; border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.2); background:rgba(255,255,255,.07); transition:background .2s; }
.lang-switch__btn:hover { background:rgba(255,255,255,.15); }
.lang-switch__btn .ic-sm { color:var(--amber-400); }
.lang-switch__btn .ic-xs { transition:transform .2s; }
.lang-switch.is-open .lang-switch__btn .ic-xs { transform:rotate(180deg); }
.lang-switch__cur { letter-spacing:.05em; }
.lang-switch__menu { position:absolute; top:calc(100% + 8px); right:0; min-width:168px; background:#fff;
  border-radius:14px; box-shadow:var(--sh-lg); padding:7px; opacity:0; visibility:hidden;
  transform:translateY(-6px); transition:opacity .2s, transform .2s, visibility .2s; z-index:var(--z-top); }
.lang-switch.is-open .lang-switch__menu { opacity:1; visibility:visible; transform:none; }
.lang-switch__menu a { display:flex; align-items:center; justify-content:space-between; gap:16px;
  padding:10px 13px; border-radius:9px; color:var(--ink-700); font-size:.95rem; font-weight:500; }
.lang-switch__menu a span { font-family:var(--font-head); font-weight:700; font-size:.72rem; color:var(--ink-400); letter-spacing:.05em; }
.lang-switch__menu a:hover { background:var(--brand-soft); color:var(--blue-700); }
.lang-switch__menu a.is-active { background:var(--brand-soft); color:var(--blue-700); }
.lang-switch__menu a.is-active span { color:var(--blue-600); }

/* ---------- Tamil typography ---------- */
body.lang-ta { --font-head:'Poppins','Noto Sans Tamil',system-ui,sans-serif;
  --font-body:'Inter','Noto Sans Tamil',system-ui,sans-serif; line-height:1.72; }
body.lang-ta h1,body.lang-ta h2,body.lang-ta h3,body.lang-ta h4 { line-height:1.32; }
body.lang-ta .hero h1 { line-height:1.22; }
body.lang-ta .nav__links a { font-size:.9rem; padding-inline:11px; }
@media (min-width:901px){ body.lang-ta .nav__links { gap:2px; } }

/* =========================================================================
   HEADER / NAV
   ========================================================================= */
.header { position:sticky; top:0; z-index:var(--z-header); background:rgba(255,255,255,.92);
  backdrop-filter:saturate(140%) blur(10px); border-bottom:1px solid var(--line);
  transition:box-shadow .25s, background .25s; }
.header.is-scrolled { box-shadow:var(--sh-sm); }
.nav { display:flex; align-items:center; gap:18px; min-height:var(--header-h); }
.brand { display:inline-flex; align-items:center; flex:none; }
.brand-logo { height:42px; width:auto; }
.nav__links { display:flex; align-items:center; gap:4px; margin-left:auto; }
.nav__links a {
  font-family:var(--font-head); font-weight:600; font-size:.95rem; color:var(--ink-700);
  padding:10px 14px; border-radius:var(--r-pill); position:relative; transition:color .2s, background .2s;
}
.nav__links a:hover { color:var(--blue-700); background:var(--brand-soft); }
.nav__links a.is-active { color:var(--blue-700); }
.nav__links a.is-active::after { content:""; position:absolute; left:14px; right:14px; bottom:4px; height:2px; background:var(--amber-500); border-radius:2px; }
.nav__cta { display:flex; align-items:center; gap:10px; margin-left:8px; }
.nav__phone { display:inline-flex; align-items:center; gap:9px; font-family:var(--font-head); font-weight:700; color:var(--navy-800); }
.nav__phone .ic-wrap { width:38px; height:38px; border-radius:50%; background:var(--brand-soft); color:var(--blue-700); display:grid; place-items:center; }
.nav__phone small { display:block; font-size:.66rem; font-weight:500; color:var(--ink-500); letter-spacing:.04em; text-transform:uppercase; }
.nav__phone span b { font-size:1.02rem; }
.nav__toggle { display:none; width:46px; height:46px; border-radius:12px; border:1px solid var(--line); color:var(--navy-800); place-items:center; }

@media (max-width:1024px){
  .nav__links a { padding:10px 11px; font-size:.9rem; }
  .nav__phone small { display:none; }
}
@media (max-width:900px){
  .nav__toggle { display:grid; margin-left:auto; }
  /* backdrop-filter on .header would make it the containing block for the
     fixed drawer (breaking its full-height/position) — disable it on mobile */
  .header { -webkit-backdrop-filter:none; backdrop-filter:none; background:rgba(255,255,255,.97); }
  .nav__links { position:fixed; top:0; right:0; bottom:0; left:auto; height:100vh; height:100dvh;
    width:min(86vw,360px); flex-direction:column;
    align-items:stretch; gap:6px; background:var(--surface); padding:86px 22px 30px; margin:0;
    box-shadow:var(--sh-lg); transform:translateX(100%); visibility:hidden;
    transition:transform .32s cubic-bezier(.4,0,.2,1), visibility 0s linear .32s;
    z-index:calc(var(--z-drawer) + 1); overflow-y:auto; -webkit-overflow-scrolling:touch;
    padding-right:calc(22px + env(safe-area-inset-right));
    padding-top:calc(86px + env(safe-area-inset-top)); }
  .nav__links.is-open { transform:translateX(0); visibility:visible;
    transition:transform .32s cubic-bezier(.4,0,.2,1), visibility 0s linear 0s; }
  /* keep the toggle (X close icon) tappable above the open drawer */
  .nav__toggle { position:relative; z-index:calc(var(--z-drawer) + 2); }
  .nav__links a { padding:14px 16px; border-radius:12px; font-size:1.05rem; }
  .nav__links a.is-active::after { display:none; }
  .nav__links a.is-active { background:var(--brand-soft); }
  .nav__links .btn { margin-top:10px; }
  .nav__drawer-call { display:flex !important; }
  .nav__cta--desktop { display:none; }
  .nav-backdrop { position:fixed; inset:0; background:rgba(8,26,58,.5); opacity:0; visibility:hidden;
    transition:opacity .3s; z-index:var(--z-drawer); }
  .nav-backdrop.is-open { opacity:1; visibility:visible; }
}
.nav__drawer-call { display:none; }

/* =========================================================================
   HERO
   ========================================================================= */
.hero { position:relative; color:#eaf2ff; overflow:hidden;
  background:radial-gradient(1200px 600px at 80% -10%, #1c4da0 0%, transparent 55%),
             linear-gradient(160deg, var(--navy-900) 0%, var(--navy-700) 55%, #15407e 100%); }
.hero::before { /* dotted texture */
  content:""; position:absolute; inset:0;
  background-image:radial-gradient(rgba(255,255,255,.07) 1.4px, transparent 1.4px);
  background-size:26px 26px; opacity:.6; pointer-events:none;
}
.hero::after { content:""; position:absolute; left:0; right:0; bottom:-1px; height:90px;
  background:linear-gradient(to top, var(--bg), transparent); pointer-events:none; }
.hero__inner { position:relative; display:grid; grid-template-columns:1.05fr .95fr; gap:clamp(24px,4vw,60px);
  align-items:center; padding-block:clamp(46px,7vw,90px) clamp(80px,9vw,120px); }
.hero__sale { display:inline-flex; align-items:center; gap:9px; font-family:var(--font-head);
  font-weight:700; font-size:.8rem; letter-spacing:.12em; text-transform:uppercase;
  color:var(--navy-900); background:linear-gradient(135deg,var(--amber-400),var(--amber-500));
  padding:8px 16px; border-radius:var(--r-pill); box-shadow:var(--sh-amber); margin-bottom:22px; }
.hero h1 { color:#fff; font-size:clamp(2.1rem,5.4vw,3.5rem); font-weight:800; line-height:1.08; letter-spacing:-.02em; }
.hero h1 .grad { background:linear-gradient(120deg,#ffd271,#ffb02e); -webkit-background-clip:text; background-clip:text; color:transparent; }
.hero__sub { margin-top:18px; font-size:clamp(1rem,1.6vw,1.18rem); color:#c7d8f3; max-width:540px; }
.hero__cta { display:flex; flex-wrap:wrap; gap:14px; margin-top:30px; }
.hero__chips { display:flex; flex-wrap:wrap; gap:10px 18px; margin-top:30px; }
.hero__chip { display:inline-flex; align-items:center; gap:9px; font-size:.9rem; font-weight:500; color:#dbe7fb; }
.hero__chip .ic-wrap { width:30px; height:30px; border-radius:9px; background:rgba(255,255,255,.12);
  color:var(--amber-400); display:grid; place-items:center; }
.hero__chip .ic-sm { color:var(--amber-400); }

/* Hero visual / floating products */
.hero__visual { position:relative; min-height:340px; display:grid; place-items:center; }
.hero__glow { position:absolute; width:78%; aspect-ratio:1; border-radius:50%;
  background:radial-gradient(circle, rgba(91,160,255,.55), transparent 62%); filter:blur(18px); }
.hero__products { position:relative; width:100%; max-width:460px; aspect-ratio:1; }
.hero__products img { position:absolute; filter:drop-shadow(0 26px 30px rgba(0,0,0,.42)); }
.hero__products .hp-purifier { width:50%; left:6%; bottom:4%; z-index:3; animation:floaty 6s ease-in-out infinite; }
.hero__products .hp-battery  { width:42%; right:3%; bottom:0; z-index:2; animation:floaty 6s ease-in-out .8s infinite; }
.hero__products .hp-inverter { width:62%; right:2%; top:2%; z-index:1; animation:floaty 7s ease-in-out .4s infinite; }
@keyframes floaty { 0%,100%{ transform:translateY(0); } 50%{ transform:translateY(-12px); } }
.hero__badge { position:absolute; z-index:5; background:#fff; color:var(--navy-800); border-radius:16px;
  padding:12px 16px; box-shadow:var(--sh-lg); display:flex; align-items:center; gap:11px; }
.hero__badge .ic-wrap { width:38px; height:38px; border-radius:11px; display:grid; place-items:center; color:#fff; }
.hero__badge b { font-family:var(--font-head); font-size:.98rem; display:block; line-height:1.1; }
.hero__badge small { font-size:.74rem; color:var(--ink-500); }
.hero__badge--warranty { top:6%; left:-2%; }
.hero__badge--warranty .ic-wrap { background:linear-gradient(135deg,var(--amber-400),var(--amber-600)); color:#3a2400; }
.hero__badge--service { bottom:8%; right:-3%; }
.hero__badge--service .ic-wrap { background:linear-gradient(135deg,var(--blue-500),var(--blue-700)); }
@media (prefers-reduced-motion:reduce){ .hero__products img{ animation:none; } }

/* Hero stat strip */
.hero-stats { position:relative; margin-top:-46px; z-index:6; }
.hero-stats__grid { display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line);
  border:1px solid var(--line); border-radius:var(--r-lg); overflow:hidden; box-shadow:var(--sh-md); }
.hero-stat { background:var(--surface); padding:22px 18px; text-align:center; }
.hero-stat__num { font-family:var(--font-head); font-weight:800; font-size:clamp(1.5rem,3vw,2.1rem);
  color:var(--blue-700); line-height:1; }
.hero-stat__num span { color:var(--amber-600); }
.hero-stat__label { margin-top:6px; font-size:.83rem; color:var(--ink-500); font-weight:500; }

@media (max-width:880px){
  .hero__inner { grid-template-columns:1fr; text-align:center; padding-bottom:90px; }
  .hero__sub { margin-inline:auto; }
  .hero__cta,.hero__chips { justify-content:center; }
  .hero__visual { order:-1; min-height:300px; margin-top:6px; }
  .hero__products { max-width:380px; }
}
@media (max-width:620px){
  .hero-stats__grid { grid-template-columns:repeat(2,1fr); }
  .hero__badge--warranty { left:0; } .hero__badge--service { right:0; }
}

/* =========================================================================
   CATEGORY CARDS
   ========================================================================= */
.cat-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(16px,2.5vw,26px); }
.cat-card { position:relative; background:var(--surface); border:1px solid var(--line);
  border-radius:var(--r-lg); padding:30px 26px 26px; overflow:hidden; transition:transform .25s, box-shadow .25s, border-color .25s; }
.cat-card::before { content:""; position:absolute; inset:0 0 auto 0; height:5px; background:var(--grad,linear-gradient(90deg,var(--blue-500),var(--blue-700))); }
.cat-card:hover { transform:translateY(-6px); box-shadow:var(--sh-md); border-color:var(--line-blue); }
.cat-card__icon { width:62px; height:62px; border-radius:18px; display:grid; place-items:center; color:#fff;
  background:var(--grad,linear-gradient(135deg,var(--blue-500),var(--blue-700))); box-shadow:var(--sh); margin-bottom:18px; }
.cat-card__icon .ic { width:30px; height:30px; }
.cat-card h3 { font-size:1.32rem; font-weight:700; }
.cat-card__tag { display:block; margin-top:4px; font-size:.82rem; font-weight:600; color:var(--blue-700); letter-spacing:.02em; }
.cat-card p { margin-top:12px; color:var(--ink-500); font-size:.96rem; }
.cat-card__list { margin-top:16px; display:grid; gap:9px; }
.cat-card__list li { display:flex; align-items:flex-start; gap:9px; font-size:.92rem; color:var(--ink-700); }
.cat-card__list .ic-xs { color:var(--success); margin-top:4px; }
.cat-card__link { display:inline-flex; align-items:center; gap:7px; margin-top:20px; font-family:var(--font-head);
  font-weight:600; color:var(--blue-700); font-size:.95rem; }
.cat-card__link .ic-sm { transition:transform .2s; }
.cat-card:hover .cat-card__link .ic-sm { transform:translateX(4px); }
.cat-card--aqua  { --grad:linear-gradient(135deg,var(--aqua-500),var(--aqua-600)); }
.cat-card--aqua .cat-card__tag,.cat-card--aqua .cat-card__link { color:var(--aqua-600); }
.cat-card--blue  { --grad:linear-gradient(135deg,var(--blue-500),var(--blue-700)); }
.cat-card--amber { --grad:linear-gradient(135deg,var(--amber-500),var(--amber-600)); }
.cat-card--amber .cat-card__tag,.cat-card--amber .cat-card__link { color:var(--amber-600); }
@media (max-width:840px){ .cat-grid{ grid-template-columns:1fr; } }

/* =========================================================================
   PRODUCT CARDS
   ========================================================================= */
.p-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:clamp(14px,2vw,24px); }
.p-card { background:var(--surface); border:1px solid var(--line); border-radius:var(--r); overflow:hidden;
  display:flex; flex-direction:column; transition:transform .25s, box-shadow .25s, border-color .25s; }
.p-card:hover { transform:translateY(-6px); box-shadow:var(--sh-md); border-color:var(--line-blue); }
.p-card__media { position:relative; aspect-ratio:4/3; background:linear-gradient(170deg,#fff,#f1f6fd);
  display:grid; place-items:center; padding:16px; }
.p-card__media img { width:100%; height:100%; object-fit:contain; mix-blend-mode:multiply;
  transition:transform .35s ease; }
.p-card:hover .p-card__media img { transform:scale(1.06); }
.p-card__badge { position:absolute; top:12px; left:12px; z-index:2; font-family:var(--font-head);
  font-weight:700; font-size:.7rem; letter-spacing:.04em; text-transform:uppercase; color:#fff;
  background:linear-gradient(135deg,var(--blue-500),var(--blue-700)); padding:5px 11px; border-radius:var(--r-pill);
  box-shadow:var(--sh-sm); }
.p-card__price-tag { position:absolute; top:12px; right:12px; z-index:2; display:inline-flex; align-items:center; gap:5px;
  font-size:.7rem; font-weight:700; color:#9a5b00; background:#fff7e6; border:1px solid #fde4ad;
  padding:5px 9px; border-radius:var(--r-pill); }
.p-card__body { padding:16px 16px 18px; display:flex; flex-direction:column; flex:1; }
.p-card__brand { font-family:var(--font-head); font-size:.74rem; font-weight:700; letter-spacing:.08em;
  text-transform:uppercase; color:var(--blue-600); }
.p-card__name { font-size:1.04rem; font-weight:700; margin-top:3px; color:var(--ink-900); }
.p-card__specs { margin-top:12px; display:grid; gap:7px; flex:1; }
.p-card__specs li { display:flex; align-items:flex-start; gap:8px; font-size:.85rem; color:var(--ink-600); }
.p-card__specs .ic-xs { color:var(--success); margin-top:3px; flex:none; }
.p-card__actions { display:grid; grid-template-columns:1fr 1fr; gap:9px; margin-top:16px; }
.p-card__actions .btn { padding:11px 8px; min-height:44px; }
@media (max-width:1040px){ .p-grid{ grid-template-columns:repeat(3,1fr); } }
@media (max-width:760px){ .p-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:420px){ .p-grid{ grid-template-columns:1fr; } }

/* Product filter tabs */
.filter-tabs { display:flex; flex-wrap:wrap; gap:10px; justify-content:center; margin-bottom:34px; }
.filter-tab { font-family:var(--font-head); font-weight:600; font-size:.92rem; color:var(--ink-700);
  background:var(--surface); border:1.5px solid var(--line); padding:11px 20px; min-height:44px; border-radius:var(--r-pill);
  transition:all .2s; display:inline-flex; align-items:center; justify-content:center; gap:8px; }
.filter-tab .ic-sm { color:var(--blue-600); }
.filter-tab:hover { border-color:var(--blue-400); color:var(--blue-700); }
.filter-tab.is-active { background:linear-gradient(135deg,var(--blue-600),var(--blue-700)); color:#fff; border-color:transparent; box-shadow:var(--sh-blue); }
.filter-tab.is-active .ic-sm { color:#fff; }

/* =========================================================================
   SERVICES
   ========================================================================= */
.svc-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(16px,2.4vw,24px); }
.svc-card { background:var(--surface); border:1px solid var(--line); border-radius:var(--r-lg);
  padding:28px 26px; transition:transform .25s, box-shadow .25s, border-color .25s; position:relative; }
.svc-card:hover { transform:translateY(-6px); box-shadow:var(--sh-md); border-color:var(--line-blue); }
.svc-card__icon { width:58px; height:58px; border-radius:16px; display:grid; place-items:center;
  background:var(--brand-soft); color:var(--blue-700); margin-bottom:18px; transition:.25s; }
.svc-card:hover .svc-card__icon { background:linear-gradient(135deg,var(--blue-500),var(--blue-700)); color:#fff; transform:rotate(-4deg); }
.svc-card h3 { font-size:1.18rem; }
.svc-card p { margin-top:10px; color:var(--ink-500); font-size:.95rem; }
@media (max-width:900px){ .svc-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:560px){ .svc-grid{ grid-template-columns:1fr; } }

/* =========================================================================
   WHY US  (split with image)
   ========================================================================= */
.why { display:grid; grid-template-columns:1fr 1fr; gap:clamp(28px,5vw,64px); align-items:center; }
.why__media { position:relative; border-radius:var(--r-xl); overflow:hidden; box-shadow:var(--sh-lg);
  background:linear-gradient(160deg,var(--navy-800),var(--navy-600)); aspect-ratio:4/3.4; }
.why__media img { width:100%; height:100%; object-fit:cover; }
.why__float { position:absolute; left:18px; bottom:18px; background:#fff; border-radius:var(--r);
  padding:14px 18px; box-shadow:var(--sh-lg); display:flex; align-items:center; gap:13px; }
.why__float .ic-wrap { width:46px; height:46px; border-radius:13px; display:grid; place-items:center; color:#fff;
  background:linear-gradient(135deg,var(--amber-400),var(--amber-600)); }
.why__float b { font-family:var(--font-head); font-size:1.4rem; color:var(--navy-800); line-height:1; }
.why__float small { color:var(--ink-500); font-size:.82rem; }
.why-list { display:grid; grid-template-columns:1fr 1fr; gap:20px 24px; margin-top:26px; }
.why-item__icon { width:46px; height:46px; border-radius:13px; display:grid; place-items:center;
  background:var(--brand-soft); color:var(--blue-700); margin-bottom:12px; }
.why-item h3 { font-size:1.06rem; }
.why-item p { margin-top:6px; font-size:.9rem; color:var(--ink-500); }
@media (max-width:920px){ .why{ grid-template-columns:1fr; } .why__media{ order:-1; aspect-ratio:16/10; } }
@media (max-width:520px){ .why-list{ grid-template-columns:1fr; } }

/* =========================================================================
   BRANDS marquee
   ========================================================================= */
.brands { border-block:1px solid var(--line); background:var(--surface); }
.brands__inner { display:flex; align-items:center; gap:clamp(28px,5vw,64px); flex-wrap:wrap; justify-content:center; padding-block:30px; }
.brands__label { font-family:var(--font-head); font-weight:600; color:var(--ink-500); font-size:.9rem; }
.brand-name { font-family:var(--font-head); font-weight:800; font-size:clamp(1.1rem,2.4vw,1.5rem);
  color:var(--ink-600); letter-spacing:-.01em; transition:color .2s; }
.brand-name:hover { color:var(--blue-700); }

/* =========================================================================
   OFFERS (real ad banners)
   ========================================================================= */
.offers-grid { display:grid; grid-template-columns:1fr 1fr; gap:clamp(18px,3vw,30px); }
.offer-card { position:relative; border-radius:var(--r-lg); overflow:hidden; box-shadow:var(--sh-md);
  border:1px solid var(--line); background:var(--navy-800); transition:transform .25s, box-shadow .25s; }
.offer-card:hover { transform:translateY(-5px); box-shadow:var(--sh-lg); }
.offer-card img { width:100%; height:100%; object-fit:cover; transition:transform .4s; }
.offer-card:hover img { transform:scale(1.03); }
.offer-card__cap { position:absolute; left:0; right:0; bottom:0; padding:24px 22px 18px;
  background:linear-gradient(to top, rgba(8,26,58,.92), transparent); color:#fff; display:flex;
  align-items:flex-end; justify-content:space-between; gap:14px; }
.offer-card__cap h3 { color:#fff; font-size:1.2rem; }
.offer-card__cap p { font-size:.85rem; color:#c7d8f3; margin-top:2px; }
@media (max-width:780px){ .offers-grid{ grid-template-columns:1fr; } }

/* =========================================================================
   TESTIMONIALS
   ========================================================================= */
.tst-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:clamp(14px,2vw,22px); }
.tst-card { background:var(--surface); border:1px solid var(--line); border-radius:var(--r-lg);
  padding:24px 22px; display:flex; flex-direction:column; position:relative; }
.tst-card__quote { color:var(--brand-soft); position:absolute; top:18px; right:18px; }
.tst-card__quote .ic { width:34px; height:34px; color:#cfe1fa; }
.stars { display:inline-flex; gap:2px; }
.ic-star { width:16px; height:16px; color:var(--amber-500); }
.star.is-empty .ic-star { color:var(--line); }
.tst-card p { margin-top:14px; font-size:.93rem; color:var(--ink-700); flex:1; }
.tst-card__who { display:flex; align-items:center; gap:12px; margin-top:18px; padding-top:16px; border-top:1px solid var(--line-2); }
.tst-card__av { width:42px; height:42px; border-radius:50%; display:grid; place-items:center; color:#fff;
  font-family:var(--font-head); font-weight:700; background:linear-gradient(135deg,var(--blue-500),var(--blue-700)); }
.tst-card__who b { font-family:var(--font-head); font-size:.95rem; color:var(--ink-900); display:block; line-height:1.1; }
.tst-card__who small { font-size:.8rem; color:var(--ink-500); }
@media (max-width:1000px){ .tst-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:540px){ .tst-grid{ grid-template-columns:1fr; } }

/* =========================================================================
   SERVICE AREAS
   ========================================================================= */
.areas-wrap { background:linear-gradient(160deg,var(--navy-800),var(--navy-600)); border-radius:var(--r-xl);
  padding:clamp(30px,5vw,56px); color:#eaf2ff; position:relative; overflow:hidden; }
.areas-wrap::before { content:""; position:absolute; inset:0;
  background-image:radial-gradient(rgba(255,255,255,.06) 1.3px, transparent 1.3px); background-size:24px 24px; }
.areas-wrap > * { position:relative; }
.areas-wrap .sec-title { color:#fff; }
.areas-wrap .sec-sub { color:#c7d8f3; }
.areas-chips { display:flex; flex-wrap:wrap; gap:10px; margin-top:26px; }
.area-chip { display:inline-flex; align-items:center; gap:7px; font-size:.9rem; font-weight:500;
  background:rgba(255,255,255,.1); border:1px solid rgba(255,255,255,.16); color:#eaf2ff;
  padding:8px 15px; border-radius:var(--r-pill); transition:.2s; }
.area-chip .ic-xs { color:var(--amber-400); }
.area-chip:hover { background:rgba(255,255,255,.18); }

/* =========================================================================
   FAQ accordion
   ========================================================================= */
.faq { max-width:820px; margin-inline:auto; display:grid; gap:12px; }
.faq-item { background:var(--surface); border:1px solid var(--line); border-radius:var(--r); overflow:hidden; transition:border-color .2s, box-shadow .2s; }
.faq-item.is-open { border-color:var(--line-blue); box-shadow:var(--sh-sm); }
.faq-q { width:100%; display:flex; align-items:center; justify-content:space-between; gap:16px;
  padding:18px 22px; text-align:left; font-family:var(--font-head); font-weight:600; font-size:1.03rem; color:var(--ink-900); }
.faq-q .ic { color:var(--blue-600); transition:transform .3s; flex:none; }
.faq-item.is-open .faq-q .ic { transform:rotate(180deg); }
.faq-a { max-height:0; overflow:hidden; transition:max-height .35s ease; }
.faq-a__inner { padding:0 22px 20px; color:var(--ink-600); font-size:.96rem; }

/* =========================================================================
   CTA BAND
   ========================================================================= */
.cta-band { position:relative; overflow:hidden;
  background:radial-gradient(800px 300px at 85% 0%, #1c4da0, transparent 60%),
             linear-gradient(135deg,var(--navy-900),var(--navy-700)); color:#fff; }
.cta-band::before { content:""; position:absolute; inset:0;
  background-image:radial-gradient(rgba(255,255,255,.06) 1.3px, transparent 1.3px); background-size:24px 24px; }
.cta-band__inner { position:relative; display:flex; align-items:center; justify-content:space-between;
  gap:28px; flex-wrap:wrap; padding-block:clamp(36px,5vw,56px); }
.cta-band h2 { color:#fff; font-size:clamp(1.5rem,3.4vw,2.2rem); font-weight:800; }
.cta-band p { color:#c7d8f3; margin-top:8px; max-width:520px; }
.cta-band__num { display:inline-flex; align-items:center; gap:10px; margin-top:14px; font-family:var(--font-head);
  font-weight:800; font-size:clamp(1.4rem,3vw,1.9rem); color:var(--amber-400); }
.cta-band__actions { display:flex; flex-wrap:wrap; gap:14px; }

/* =========================================================================
   PAGE HERO (inner pages) + breadcrumb
   ========================================================================= */
.page-hero { position:relative; overflow:hidden; color:#eaf2ff;
  background:radial-gradient(900px 400px at 80% -20%, #1c4da0, transparent 55%),
             linear-gradient(150deg,var(--navy-900),var(--navy-700)); }
.page-hero::before { content:""; position:absolute; inset:0;
  background-image:radial-gradient(rgba(255,255,255,.06) 1.3px, transparent 1.3px); background-size:24px 24px; }
.page-hero__inner { position:relative; padding-block:clamp(40px,6vw,72px); text-align:center; }
.page-hero h1 { color:#fff; font-size:clamp(1.9rem,4.6vw,3rem); font-weight:800; }
.page-hero p { color:#c7d8f3; margin-top:12px; max-width:620px; margin-inline:auto; }
.breadcrumb { display:flex; align-items:center; justify-content:center; gap:8px; margin-top:18px; font-size:.88rem; color:#9fc0ee; }
.breadcrumb a:hover { color:#fff; }
.breadcrumb .ic-xs { color:var(--amber-400); }
.breadcrumb span[aria-current]{ color:#fff; font-weight:600; }

/* =========================================================================
   CONTACT
   ========================================================================= */
.contact-grid { display:grid; grid-template-columns:1fr 1.2fr; gap:clamp(24px,4vw,48px); align-items:start; }
.info-card { background:var(--surface); border:1px solid var(--line); border-radius:var(--r-lg); padding:26px; }
.info-list { display:grid; gap:18px; margin-top:8px; }
.info-row { display:flex; gap:15px; align-items:flex-start; }
.info-row__icon { width:46px; height:46px; border-radius:13px; display:grid; place-items:center; flex:none;
  background:var(--brand-soft); color:var(--blue-700); }
.info-row b { font-family:var(--font-head); display:block; color:var(--ink-900); font-size:.98rem; margin-bottom:2px; }
.info-row a,.info-row p { color:var(--ink-600); font-size:.95rem; }
.info-row a:hover { color:var(--blue-700); }
.info-actions { display:flex; gap:12px; flex-wrap:wrap; margin-top:22px; }

.form-card { background:var(--surface); border:1px solid var(--line); border-radius:var(--r-lg); padding:clamp(22px,3vw,34px); box-shadow:var(--sh-sm); }
.form-grid { display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.field { display:flex; flex-direction:column; gap:7px; }
.field--full { grid-column:1/-1; }
.field label { font-family:var(--font-head); font-weight:600; font-size:.9rem; color:var(--ink-800); }
.field label .req { color:var(--danger); }
.field input,.field select,.field textarea {
  width:100%; padding:13px 15px; border:1.5px solid var(--line); border-radius:var(--r-xs);
  background:var(--surface-2); transition:border-color .2s, box-shadow .2s, background .2s; font-size:.97rem; }
.field input:focus,.field select:focus,.field textarea:focus {
  border-color:var(--blue-500); background:#fff; box-shadow:0 0 0 4px rgba(37,99,235,.12); outline:none; }
.field textarea { resize:vertical; min-height:120px; }
.field .err-msg { font-size:.82rem; color:var(--danger); display:none; }
.field.has-error input,.field.has-error select,.field.has-error textarea { border-color:var(--danger); background:#fef2f2; }
.field.has-error .err-msg { display:block; }
.hp { position:absolute; left:-9999px; opacity:0; }
.form-note { font-size:.84rem; color:var(--ink-500); margin-top:6px; }

.alert { display:flex; gap:12px; align-items:flex-start; padding:15px 18px; border-radius:var(--r-xs); margin-bottom:20px; font-size:.95rem; }
.alert .ic { flex:none; margin-top:1px; }
.alert--success { background:#ecfdf3; border:1px solid #abebc6; color:#156534; }
.alert--error { background:#fef2f2; border:1px solid #f4b4b4; color:#a01b1b; }

.map-wrap { border-radius:var(--r-lg); overflow:hidden; border:1px solid var(--line); box-shadow:var(--sh-sm); line-height:0; }
.map-wrap iframe { width:100%; height:360px; border:0; }
@media (max-width:880px){ .contact-grid{ grid-template-columns:1fr; } }
@media (max-width:560px){ .form-grid{ grid-template-columns:1fr; } }

/* =========================================================================
   ABOUT extras
   ========================================================================= */
.about-grid { display:grid; grid-template-columns:1fr 1fr; gap:clamp(28px,5vw,60px); align-items:center; }
.about-media { border-radius:var(--r-xl); overflow:hidden; box-shadow:var(--sh-lg); }
.value-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.value-card { text-align:center; padding:28px 22px; background:var(--surface); border:1px solid var(--line); border-radius:var(--r-lg); }
.value-card__icon { width:60px; height:60px; border-radius:50%; display:grid; place-items:center; margin:0 auto 16px;
  background:var(--brand-soft); color:var(--blue-700); }
.steps { display:grid; grid-template-columns:repeat(4,1fr); gap:20px; counter-reset:step; }
.step { background:var(--surface); border:1px solid var(--line); border-radius:var(--r-lg); padding:26px 22px; position:relative; }
.step__n { font-family:var(--font-head); font-weight:800; font-size:2.2rem; color:var(--brand-soft);
  line-height:1; -webkit-text-stroke:1px var(--line-blue); }
.step h3 { font-size:1.05rem; margin-top:6px; }
.step p { margin-top:8px; font-size:.9rem; color:var(--ink-500); }
@media (max-width:920px){ .about-grid{ grid-template-columns:1fr; } .value-grid{ grid-template-columns:1fr; } .steps{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:520px){ .steps{ grid-template-columns:1fr; } }

/* =========================================================================
   FOOTER
   ========================================================================= */
.footer { background:linear-gradient(180deg,var(--navy-900),#05122b); color:#b9cbe8; }
.footer__top { display:grid; grid-template-columns:1.4fr 1fr 1fr 1.2fr; gap:clamp(26px,4vw,48px); padding-block:clamp(48px,6vw,72px); }
.footer__brand .brand-logo { height:44px; }
.footer__about { margin-top:18px; font-size:.93rem; color:#9fb3d4; max-width:320px; }
.footer__social { display:flex; gap:10px; margin-top:20px; }
.footer__social a { width:40px; height:40px; border-radius:11px; background:rgba(255,255,255,.08); display:grid; place-items:center; color:#cfe0f7; transition:.2s; }
.footer__social a:hover { background:var(--amber-500); color:var(--navy-900); transform:translateY(-3px); }
.footer__col-title { color:#fff; font-size:1.05rem; margin-bottom:18px; font-weight:700; }
.footer__links { display:grid; gap:11px; }
.footer__links a { font-size:.93rem; color:#9fb3d4; display:inline-flex; align-items:center; gap:8px; transition:.2s; }
.footer__links a:hover { color:#fff; transform:translateX(3px); }
.footer__links .ic-xs { color:var(--amber-400); }
.footer__contact { display:grid; gap:14px; }
.footer__contact .info-row__icon { background:rgba(255,255,255,.08); color:var(--amber-400); }
.footer__contact b { color:#fff; }
.footer__contact a,.footer__contact p { color:#9fb3d4; font-size:.92rem; }
.footer__contact a:hover { color:#fff; }
.footer__bar { border-top:1px solid rgba(255,255,255,.1); padding-block:20px; display:flex; align-items:center;
  justify-content:space-between; gap:14px; flex-wrap:wrap; font-size:.86rem; color:#8aa0c4; }
.footer__bar a:hover { color:#fff; }
@media (max-width:900px){ .footer__top{ grid-template-columns:1fr 1fr; } }
@media (max-width:520px){ .footer__top{ grid-template-columns:1fr; } .footer__bar{ justify-content:center; text-align:center; } }

/* =========================================================================
   FLOATING ACTIONS + BACK TO TOP
   ========================================================================= */
.fab { position:fixed; right:calc(18px + env(safe-area-inset-right)); bottom:calc(18px + env(safe-area-inset-bottom)); z-index:var(--z-fab); display:flex; flex-direction:column; gap:12px; }
.fab a { width:54px; height:54px; border-radius:50%; display:grid; place-items:center; color:#fff;
  box-shadow:var(--sh-lg); transition:transform .2s; position:relative; }
.fab a:hover { transform:scale(1.08); }
.fab__wa { background:var(--wa); }
.fab__call { background:linear-gradient(135deg,var(--blue-500),var(--blue-700)); }
.fab a .ic { width:26px; height:26px; }
.fab__pulse::after { content:""; position:absolute; inset:0; border-radius:50%; box-shadow:0 0 0 0 rgba(37,211,102,.5);
  animation:pulse 2s infinite; }
@keyframes pulse { 70%{ box-shadow:0 0 0 14px rgba(37,211,102,0);} 100%{ box-shadow:0 0 0 0 rgba(37,211,102,0);} }
@media (prefers-reduced-motion:reduce){ .fab__pulse::after{ animation:none; } }

.to-top { position:fixed; right:calc(18px + env(safe-area-inset-right)); bottom:calc(150px + env(safe-area-inset-bottom));
  z-index:var(--z-fab); width:46px; height:46px; border-radius:50%;
  background:var(--navy-800); color:#fff; display:grid; place-items:center; box-shadow:var(--sh-lg);
  opacity:0; visibility:hidden; transform:translateY(10px); transition:.25s; }
.to-top.is-visible { opacity:1; visibility:visible; transform:translateY(0); }
@media (max-width:900px){
  .fab { right:calc(14px + env(safe-area-inset-right)); bottom:calc(14px + env(safe-area-inset-bottom)); }
  .to-top { bottom:calc(146px + env(safe-area-inset-bottom)); right:calc(14px + env(safe-area-inset-right)); }
}

/* =========================================================================
   Scroll reveal
   ========================================================================= */
.reveal { opacity:0; transform:translateY(24px); transition:opacity .6s ease, transform .6s ease; }
.reveal.is-in { opacity:1; transform:none; }
.reveal.d1{ transition-delay:.08s; } .reveal.d2{ transition-delay:.16s; } .reveal.d3{ transition-delay:.24s; } .reveal.d4{ transition-delay:.32s; }
@media (prefers-reduced-motion:reduce){ .reveal{ opacity:1; transform:none; transition:none; } }

/* Utilities */
.mt-0{margin-top:0}.muted{color:var(--ink-600)}.lead{font-size:1.08rem;color:var(--ink-600)}
.stack-lg > * + *{margin-top:20px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
@media (max-width:700px){.grid-2{grid-template-columns:1fr}}