/* ============================================================
   Aquatel Technologies - Core Design System
   Pure Water. Refined by Science. Delivered Fresh.
   ------------------------------------------------------------
   Edit the CSS variables in :root to re-theme the whole site.
   ============================================================ */

/* ---------- 1. Design Tokens ---------- */
:root {
  /* Brand palette */
  --navy: #032B5F;
  --deep-blue: #0057D9;
  --aqua: #00C2E8;
  --soft-aqua: #DDF8FF;
  --ice-white: #F7FCFF;
  --text-dark: #071B3A;
  --muted-text: #5B6B84;
  --success-aqua: #20D6B5;
  --warning: #FFB020;

  /* Glass surfaces */
  --card-white: rgba(255, 255, 255, 0.82);
  --glass-border: rgba(255, 255, 255, 0.35);
  --glass-blur: 16px;

  /* Semantic surface tokens (theme-aware) */
  --bg: var(--ice-white);
  --bg-alt: #ECF7FF;
  --surface: var(--card-white);
  --surface-solid: #ffffff;
  --border: rgba(3, 43, 95, 0.10);
  --text: var(--text-dark);
  --text-muted: var(--muted-text);
  --heading: var(--navy);

  /* Gradients */
  --grad-brand: linear-gradient(135deg, var(--deep-blue) 0%, var(--aqua) 100%);
  --grad-deep: linear-gradient(160deg, var(--navy) 0%, var(--deep-blue) 70%);
  --grad-soft: linear-gradient(180deg, var(--ice-white) 0%, var(--soft-aqua) 100%);
  --grad-text: linear-gradient(120deg, var(--deep-blue), var(--aqua));

  /* Typography */
  --font-head: 'Sora', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-num: 'Manrope', system-ui, sans-serif;

  /* Type scale */
  --fs-display: clamp(2.4rem, 6vw, 4.4rem);
  --fs-h1: clamp(2rem, 4.5vw, 3.2rem);
  --fs-h2: clamp(1.6rem, 3.2vw, 2.4rem);
  --fs-h3: clamp(1.25rem, 2vw, 1.6rem);
  --fs-body: 1rem;
  --fs-small: 0.875rem;

  /* Spacing scale (8pt rhythm) */
  --sp-1: 0.5rem;
  --sp-2: 1rem;
  --sp-3: 1.5rem;
  --sp-4: 2rem;
  --sp-5: 3rem;
  --sp-6: 4rem;
  --sp-7: 6rem;

  /* Radius */
  --r-sm: 10px;
  --r-md: 18px;
  --r-lg: 28px;
  --r-pill: 999px;

  /* Shadows / elevation scale */
  --sh-1: 0 2px 8px rgba(3, 43, 95, 0.06);
  --sh-2: 0 10px 30px rgba(3, 43, 95, 0.10);
  --sh-3: 0 20px 50px rgba(3, 43, 95, 0.16);
  --sh-glow: 0 12px 40px rgba(0, 194, 232, 0.30);

  /* Layout */
  --container: 1200px;
  --nav-h: 76px;

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 240ms;

  /* z-index scale */
  --z-base: 1;
  --z-raised: 10;
  --z-sticky: 40;
  --z-float: 60;
  --z-nav: 100;
  --z-modal: 1000;
}

/* Dark mode (toggled by [data-theme="dark"] on <html>) */
[data-theme="dark"] {
  --bg: #04183a;
  --bg-alt: #061f47;
  --surface: rgba(13, 38, 76, 0.72);
  --surface-solid: #0a234d;
  --border: rgba(120, 190, 255, 0.16);
  --text: #E8F3FF;
  --text-muted: #9FB6D6;
  --heading: #EAF6FF;
  --card-white: rgba(13, 38, 76, 0.72);
  --glass-border: rgba(120, 190, 255, 0.22);
  --grad-soft: linear-gradient(180deg, #04183a 0%, #061f47 100%);
  --sh-1: 0 2px 8px rgba(0, 0, 0, 0.30);
  --sh-2: 0 12px 30px rgba(0, 0, 0, 0.38);
  --sh-3: 0 22px 50px rgba(0, 0, 0, 0.45);
}

/* ---------- 2. Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
/* Lenis disables native smooth scroll when active */
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-head);
  color: var(--heading);
  line-height: 1.15;
  font-weight: 700;
  margin: 0 0 var(--sp-2);
  letter-spacing: -0.01em;
}
h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

p { margin: 0 0 var(--sp-2); max-width: 70ch; }

a { color: var(--deep-blue); text-decoration: none; transition: color var(--dur) var(--ease); }
a:hover { color: var(--aqua); }

img, svg { max-width: 100%; display: block; }

ul { margin: 0; padding: 0; list-style: none; }

button { font-family: inherit; cursor: pointer; }

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

::selection { background: var(--aqua); color: #fff; }

/* Skip link for keyboard users */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--navy);
  color: #fff;
  padding: 12px 20px;
  border-radius: 0 0 var(--r-sm) 0;
  z-index: var(--z-modal);
}
.skip-link:focus { left: 0; }

/* ---------- 3. Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.1rem, 4vw, 2.2rem);
}
.section { padding-block: clamp(3.5rem, 8vw, 6.5rem); position: relative; }
.section--tight { padding-block: clamp(2.5rem, 5vw, 4rem); }
.section--alt { background: var(--bg-alt); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--deep-blue);
  background: var(--soft-aqua);
  padding: 6px 14px;
  border-radius: var(--r-pill);
  margin-bottom: var(--sp-2);
}
[data-theme="dark"] .eyebrow { background: rgba(0,194,232,0.14); color: var(--aqua); }

.section-head { max-width: 720px; margin: 0 auto var(--sp-5); text-align: center; }
.section-head.left { margin-inline: 0; text-align: left; }
.section-head p { color: var(--text-muted); margin-inline: auto; }
.section-head.left p { margin-inline: 0; }

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

.grid { display: grid; gap: var(--sp-3); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-6 { grid-template-columns: repeat(6, 1fr); }

/* ---------- 4. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1;
  padding: 15px 26px;
  min-height: 48px;
  border: none;
  border-radius: var(--r-pill);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background var(--dur) var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn svg, .btn i { width: 18px; height: 18px; }

.btn-primary { background: var(--grad-brand); color: #fff; box-shadow: var(--sh-glow); }
.btn-primary:hover { box-shadow: 0 16px 46px rgba(0, 194, 232, 0.42); color: #fff; }

.btn-ghost {
  background: var(--surface);
  color: var(--heading);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--sh-1);
}
.btn-ghost:hover { color: var(--heading); box-shadow: var(--sh-2); }

.btn-outline {
  background: transparent;
  color: var(--deep-blue);
  border: 2px solid var(--deep-blue);
}
[data-theme="dark"] .btn-outline { color: var(--aqua); border-color: var(--aqua); }
.btn-outline:hover { background: var(--deep-blue); color: #fff; }
[data-theme="dark"] .btn-outline:hover { background: var(--aqua); color: var(--navy); }

.btn-whatsapp { background: #25D366; color: #fff; }
.btn-whatsapp:hover { background: #1ebe5b; color: #fff; }

.btn-sm { padding: 10px 18px; min-height: 40px; font-size: 0.85rem; }
.btn-block { width: 100%; }

/* Ripple */
.ripple {
  position: absolute;
  border-radius: 50%;
  transform: scale(0);
  background: rgba(255, 255, 255, 0.5);
  animation: ripple-anim 600ms var(--ease);
  pointer-events: none;
}

/* ---------- 5. Glass card ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-lg);
  padding: var(--sp-4);
  box-shadow: var(--sh-2);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
  position: relative;
}
.card--hover:hover { transform: translateY(-6px); box-shadow: var(--sh-3); }
.card__icon {
  width: 56px; height: 56px;
  display: grid; place-items: center;
  border-radius: 16px;
  background: var(--grad-brand);
  color: #fff;
  margin-bottom: var(--sp-2);
  box-shadow: var(--sh-glow);
}
.card__icon i, .card__icon svg { width: 28px; height: 28px; }

/* ---------- 6. Navigation ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-h);
  z-index: var(--z-nav);
  display: flex;
  align-items: center;
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease), backdrop-filter var(--dur) var(--ease);
}
.nav.scrolled {
  background: var(--surface);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--sh-1);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-head); font-weight: 700; font-size: 1.15rem; color: var(--heading); }
.brand:hover { color: var(--heading); }
.brand__mark { width: 40px; height: 40px; object-fit: contain; }
/* Brand wordmark stays light while nav is transparent over the navy hero */
.nav:not(.scrolled) .brand { color: #fff; }
.nav:not(.scrolled) .brand small { color: #9FC6F0; }
.brand small { display: block; font-size: 0.6rem; letter-spacing: 0.24em; color: var(--text-muted); font-weight: 600; font-family: var(--font-num); }

.nav__links { display: flex; align-items: center; gap: clamp(0.4rem, 1.4vw, 1.1rem); }
.nav__links a {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 0.92rem;
  color: var(--text);
  padding: 8px 6px;
  position: relative;
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 6px; right: 6px; bottom: 2px;
  height: 2px;
  background: var(--grad-brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease);
}
.nav__links a:hover { color: var(--deep-blue); }
.nav__links a:hover::after,
.nav__links a[aria-current="page"]::after { transform: scaleX(1); }
.nav__links a[aria-current="page"] { color: var(--deep-blue); font-weight: 600; }

.nav__actions { display: flex; align-items: center; gap: 12px; }

.theme-toggle, .nav__burger {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  background: var(--surface);
  color: var(--heading);
  backdrop-filter: blur(var(--glass-blur));
}
.theme-toggle i { width: 20px; height: 20px; }
.nav__burger { display: none; }
.nav__burger span { display: block; width: 20px; height: 2px; background: var(--heading); position: relative; transition: var(--dur); }
.nav__burger span::before, .nav__burger span::after { content: ""; position: absolute; left: 0; width: 20px; height: 2px; background: var(--heading); transition: var(--dur); }
.nav__burger span::before { top: -6px; }
.nav__burger span::after { top: 6px; }
.nav__burger.open span { background: transparent; }
.nav__burger.open span::before { top: 0; transform: rotate(45deg); }
.nav__burger.open span::after { top: 0; transform: rotate(-45deg); }

/* Mobile slide-out panel */
.mobile-panel {
  position: fixed;
  inset: 0 0 0 auto;
  width: min(85vw, 340px);
  background: var(--surface-solid);
  z-index: var(--z-modal);
  transform: translateX(100%);
  transition: transform 360ms var(--ease);
  padding: calc(var(--nav-h) + 1rem) var(--sp-4) var(--sp-4);
  display: flex;
  flex-direction: column;
  gap: 6px;
  box-shadow: var(--sh-3);
  overflow-y: auto;
}
.mobile-panel.open { transform: translateX(0); }
.mobile-panel a {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 1.1rem;
  color: var(--text);
  padding: 14px 4px;
  border-bottom: 1px solid var(--border);
}
.mobile-panel a[aria-current="page"] { color: var(--deep-blue); }
.mobile-panel .btn { margin-top: var(--sp-3); }
.nav-overlay {
  position: fixed; inset: 0;
  background: rgba(3, 17, 40, 0.5);
  backdrop-filter: blur(2px);
  z-index: var(--z-float);
  opacity: 0; visibility: hidden;
  transition: var(--dur);
}
.nav-overlay.open { opacity: 1; visibility: visible; }

/* Scroll progress bar */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%;
  background: linear-gradient(90deg, var(--deep-blue), var(--aqua), #7FE9FF);
  z-index: calc(var(--z-nav) + 1);
  transition: width 80ms linear;
  box-shadow: 0 0 10px rgba(0, 194, 232, 0.6);
}

/* ---------- 7. Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  overflow: hidden;
  background: var(--grad-deep);
}
/* Soft cyan glow + grid depth behind hero content */
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 78% 30%, rgba(0, 194, 232, 0.30), transparent 45%),
    radial-gradient(circle at 12% 80%, rgba(0, 87, 217, 0.30), transparent 40%);
  pointer-events: none; z-index: 1;
}
.hero__particles { position: absolute; inset: 0; z-index: 0; }
.hero__inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--sp-5); align-items: center; }
.hero__content { color: #EAF6FF; }
.hero h1 { color: #fff; font-size: var(--fs-display); margin-bottom: var(--sp-3); }
.hero h1 .text-gradient { background: linear-gradient(120deg, #7FE9FF, #00C2E8); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero__sub { font-size: 1.15rem; color: #C5E4FF; max-width: 56ch; margin-bottom: var(--sp-4); }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: var(--sp-5); }
.hero__stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-2); }
.hero__stat { text-align: left; }
.hero__stat b { font-family: var(--font-num); font-size: 1.4rem; color: #fff; display: block; }
.hero__stat span { font-size: 0.8rem; color: #9FC6F0; }

/* Floating bottle illustration */
.hero__visual { position: relative; display: grid; place-items: center; }
.hero__bottle {
  width: min(420px, 92%); height: auto; border-radius: var(--r-lg);
  box-shadow: 0 30px 60px rgba(0, 30, 80, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

/* ---------- 8. Trust strip ---------- */
.trust-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--sp-2); }
.trust-item {
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: 10px;
  padding: var(--sp-3) var(--sp-2);
  background: var(--surface);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
  box-shadow: var(--sh-1);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.trust-item:hover { transform: translateY(-4px); box-shadow: var(--sh-2); }
.trust-item i { width: 30px; height: 30px; color: var(--deep-blue); }
.trust-item:hover i { color: var(--aqua); }
.trust-item span { font-size: 0.82rem; font-weight: 600; color: var(--heading); line-height: 1.3; }

/* ---------- 9. Product cards ---------- */
.product-card { display: flex; flex-direction: column; text-align: center; }
.product-card .product-art { height: 150px; display: grid; place-items: center; margin-bottom: var(--sp-2); }
.product-card .product-art svg { height: 100%; width: auto; }
/* Real bottle photos: framed product tile */
.product-card.has-photo .product-art {
  height: 210px; border-radius: var(--r-md); overflow: hidden;
  background: linear-gradient(180deg, #EAF6FF, #DDF8FF);
}
.product-photo { width: 100%; height: 100%; object-fit: cover; object-position: center; transition: transform 0.5s var(--ease); }
.product-card.has-photo:hover .product-photo { transform: scale(1.05); }
.product-photo-lg { width: 100%; height: 100%; object-fit: contain; }
.product-card h3 { margin-bottom: 4px; }
.product-card .product-type { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--aqua); margin-bottom: var(--sp-1); }
.product-card p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: var(--sp-2); }
.product-card .use-case { font-size: 0.8rem; color: var(--text-muted); margin-bottom: var(--sp-3); }
.product-card .price { font-family: var(--font-num); font-weight: 800; font-size: 1.3rem; color: var(--heading); margin-bottom: 4px; }
.product-card .price small { display: block; font-size: 0.68rem; font-weight: 600; color: var(--warning); text-transform: uppercase; letter-spacing: 0.06em; }
.product-card .btn { margin-top: auto; }
.badge {
  display: inline-block; font-family: var(--font-num); font-weight: 700; font-size: 0.7rem;
  padding: 4px 10px; border-radius: var(--r-pill); background: var(--soft-aqua); color: var(--deep-blue);
}

/* ---------- 10. RO Process stepper ---------- */
.process-wrap { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: var(--sp-5); align-items: center; }
.process-steps { display: flex; flex-direction: column; gap: 12px; }
.process-step {
  display: flex; gap: 16px; align-items: flex-start;
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
  transition: all var(--dur) var(--ease);
  width: 100%; text-align: left;
}
.process-step:hover { border-color: var(--aqua); }
.process-step.active { background: var(--grad-brand); border-color: transparent; box-shadow: var(--sh-glow); }
.process-step.active .step-num, .process-step.active h3, .process-step.active p { color: #fff; }
.process-step.active .step-num { background: rgba(255,255,255,0.22); }
.step-num {
  flex-shrink: 0; width: 40px; height: 40px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--soft-aqua); color: var(--deep-blue);
  font-family: var(--font-num); font-weight: 800;
}
.process-step h3 { font-size: 1.05rem; margin-bottom: 2px; }
.process-step .step-body { max-height: 0; overflow: hidden; opacity: 0; transition: all 360ms var(--ease); }
.process-step.active .step-body { max-height: 200px; opacity: 1; margin-top: 6px; }
.process-step p { font-size: 0.88rem; margin: 0; }

/* Animated pipe visual */
.process-visual { position: relative; display: grid; place-items: center; min-height: 360px; }
.flow-droplet { fill: var(--aqua); filter: drop-shadow(0 0 8px var(--aqua)); }

/* ---------- 11. Comparison / chart ---------- */
.compare-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-5); align-items: center; }
.chart-box { background: var(--surface); border: 1px solid var(--glass-border); border-radius: var(--r-lg); padding: var(--sp-4); box-shadow: var(--sh-2); }
.metric-list { display: flex; flex-direction: column; gap: var(--sp-2); }
.metric-row { display: grid; grid-template-columns: 140px 1fr; gap: 14px; align-items: center; }
.metric-row .label { font-weight: 600; color: var(--heading); font-size: 0.9rem; display: flex; align-items: center; gap: 6px; }
.metric-row .label .help { width: 16px; height: 16px; color: var(--text-muted); cursor: help; }
.bar-track { background: var(--border); height: 12px; border-radius: var(--r-pill); overflow: hidden; position: relative; }
.bar-fill { height: 100%; border-radius: var(--r-pill); width: 0; transition: width 1s var(--ease); }
.bar-fill.tap { background: linear-gradient(90deg, #9aa7bd, #c2ccdb); }
.bar-fill.aquatel { background: var(--grad-brand); }
.legend { display: flex; gap: var(--sp-3); margin-top: var(--sp-3); font-size: 0.82rem; color: var(--text-muted); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.dot { width: 12px; height: 12px; border-radius: 50%; display: inline-block; }
.dot.tap { background: #aab6c9; }
.dot.aquatel { background: var(--aqua); }

/* ---------- 12. Service cards / tabs ---------- */
.service-card { text-align: left; }
.service-card h3 { margin-bottom: 6px; }
.service-card .best-for { font-size: 0.8rem; color: var(--aqua); font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; margin: var(--sp-2) 0; }
.service-card p { font-size: 0.92rem; color: var(--text-muted); }

.tabs { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; margin-bottom: var(--sp-4); }
.tab-btn {
  padding: 10px 22px; border-radius: var(--r-pill);
  border: 1px solid var(--border); background: var(--surface);
  font-family: var(--font-head); font-weight: 600; font-size: 0.9rem; color: var(--text);
  transition: all var(--dur) var(--ease); min-height: 44px;
}
.tab-btn.active { background: var(--grad-brand); color: #fff; border-color: transparent; box-shadow: var(--sh-glow); }
.tab-panel { display: none; animation: fade-up 0.5s var(--ease); }
.tab-panel.active { display: block; }

/* ---------- 13. Calculator ---------- */
.calc-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-5); }
.calc-form { display: flex; flex-direction: column; gap: var(--sp-3); }
.calc-result {
  background: var(--grad-deep); color: #fff; border-radius: var(--r-lg);
  padding: var(--sp-5); display: flex; flex-direction: column; gap: var(--sp-2);
  box-shadow: var(--sh-3); justify-content: center;
}
.calc-result h3 { color: #fff; }
.calc-result .big-num { font-family: var(--font-num); font-size: 2.6rem; font-weight: 800; color: #7FE9FF; line-height: 1; }
.calc-result .result-row { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.14); }
.calc-result .result-row span:first-child { color: #9FC6F0; }
.calc-result .result-row b { font-family: var(--font-num); }

/* Form fields */
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-weight: 600; font-size: 0.88rem; color: var(--heading); }
.field label .req { color: #e5484d; }
.field input, .field select, .field textarea {
  width: 100%; padding: 13px 15px; min-height: 48px;
  font-family: var(--font-body); font-size: 1rem; color: var(--text);
  background: var(--surface-solid); border: 1px solid var(--border); border-radius: var(--r-sm);
  transition: border var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--aqua); box-shadow: 0 0 0 3px rgba(0,194,232,0.18);
}
.field .helper { font-size: 0.78rem; color: var(--text-muted); }
.field .error-msg { font-size: 0.78rem; color: #e5484d; display: none; }
.field.invalid input, .field.invalid select, .field.invalid textarea { border-color: #e5484d; }
.field.invalid .error-msg { display: block; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-2); }

/* ---------- 14. Subscription plans ---------- */
.toggle-switch { display: inline-flex; align-items: center; gap: 12px; justify-content: center; margin-bottom: var(--sp-4); width: 100%; }
.toggle-switch button {
  background: var(--surface); border: 1px solid var(--border); padding: 8px 20px; border-radius: var(--r-pill);
  font-family: var(--font-head); font-weight: 600; color: var(--text-muted); min-height: 44px;
}
.toggle-switch button.active { background: var(--grad-brand); color: #fff; border-color: transparent; }
.plan-card { display: flex; flex-direction: column; gap: var(--sp-2); }
.plan-card.featured { border: 2px solid var(--aqua); box-shadow: var(--sh-glow); }
.plan-card .plan-tag { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--aqua); }
.plan-card .plan-price { font-family: var(--font-num); font-size: 2rem; font-weight: 800; color: var(--heading); }
.plan-card .plan-price small { font-size: 0.85rem; color: var(--text-muted); font-weight: 500; }
.plan-card ul.features { display: flex; flex-direction: column; gap: 10px; margin: var(--sp-2) 0; }
.plan-card ul.features li { display: flex; gap: 10px; align-items: flex-start; font-size: 0.9rem; color: var(--text-muted); }
.plan-card ul.features li i { width: 18px; height: 18px; color: var(--success-aqua); flex-shrink: 0; margin-top: 2px; }
.plan-card .btn { margin-top: auto; }

/* ---------- 15. Sustainability ---------- */
.sustain-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: var(--sp-2); }
.sustain-item { text-align: center; padding: var(--sp-3) var(--sp-2); }
.sustain-item i { width: 36px; height: 36px; color: var(--success-aqua); margin-bottom: var(--sp-1); }
.sustain-item h4 { font-size: 0.95rem; color: var(--heading); margin-bottom: 4px; }
.sustain-item p { font-size: 0.82rem; color: var(--text-muted); margin: 0; }

/* ---------- 16. Testimonials ---------- */
.testimonial { padding: var(--sp-4); }
.testimonial .quote { font-size: 1.05rem; color: var(--text); font-style: italic; margin-bottom: var(--sp-3); }
.testimonial .author { display: flex; align-items: center; gap: 12px; }
.testimonial .avatar { width: 48px; height: 48px; border-radius: 50%; background: var(--grad-brand); display: grid; place-items: center; color: #fff; font-family: var(--font-num); font-weight: 800; }
.testimonial .author b { display: block; color: var(--heading); font-size: 0.92rem; }
.testimonial .author span { font-size: 0.8rem; color: var(--text-muted); }
.stars { color: var(--warning); display: flex; gap: 2px; margin-bottom: var(--sp-2); }
.stars i { width: 16px; height: 16px; fill: var(--warning); }

/* ---------- 17. FAQ accordion ---------- */
.faq-list { max-width: 800px; margin-inline: auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--surface); border: 1px solid var(--glass-border); border-radius: var(--r-md); overflow: hidden; }
.faq-q {
  width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: var(--sp-3); background: none; border: none; text-align: left;
  font-family: var(--font-head); font-weight: 600; font-size: 1rem; color: var(--heading); min-height: 56px;
}
.faq-q i { width: 20px; height: 20px; color: var(--aqua); transition: transform var(--dur) var(--ease); flex-shrink: 0; }
.faq-item.open .faq-q i { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 360ms var(--ease); }
.faq-a p { padding: 0 var(--sp-3) var(--sp-3); color: var(--text-muted); margin: 0; }

/* ---------- 18. Footer ---------- */
.footer { background: var(--navy); color: #C5E4FF; padding-block: var(--sp-6) var(--sp-4); position: relative; }
[data-theme="dark"] .footer { background: #02152f; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: var(--sp-4); margin-bottom: var(--sp-5); }
.footer h4 { color: #fff; font-size: 0.95rem; margin-bottom: var(--sp-2); }
.footer__brand .brand { color: #fff; margin-bottom: var(--sp-2); }
.footer__brand .brand small { color: #7FA8D9; }
.footer__brand p { font-size: 0.9rem; color: #9FC6F0; }
.footer ul li { margin-bottom: 10px; }
.footer ul li a { color: #9FC6F0; font-size: 0.9rem; }
.footer ul li a:hover { color: var(--aqua); }
.footer__contact li { display: flex; gap: 10px; align-items: flex-start; font-size: 0.9rem; }
.footer__contact i { width: 18px; height: 18px; color: var(--aqua); flex-shrink: 0; margin-top: 2px; }
.footer__social { display: flex; gap: 12px; margin-top: var(--sp-2); }
.footer__social a { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; background: rgba(255,255,255,0.08); color: #fff; }
.footer__social a:hover { background: var(--aqua); color: var(--navy); }
.footer__bottom { border-top: 1px solid rgba(255,255,255,0.12); padding-top: var(--sp-3); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 0.82rem; color: #7FA8D9; }

/* ---------- 19. Floating UI ---------- */
.float-whatsapp {
  position: fixed; bottom: 24px; right: 24px; z-index: var(--z-float);
  width: 58px; height: 58px; border-radius: 50%; background: #25D366;
  display: grid; place-items: center; color: #fff; box-shadow: 0 8px 24px rgba(37,211,102,0.5);
  transition: transform var(--dur) var(--ease);
}
.float-whatsapp:hover { transform: scale(1.08); color: #fff; }
.float-whatsapp i { width: 28px; height: 28px; }
.float-whatsapp::after {
  content: "Order on WhatsApp"; position: absolute; right: 70px; white-space: nowrap;
  background: var(--navy); color: #fff; padding: 8px 14px; border-radius: var(--r-sm);
  font-size: 0.82rem; opacity: 0; pointer-events: none; transition: opacity var(--dur);
}
.float-whatsapp:hover::after { opacity: 1; }

.back-top {
  position: fixed; bottom: 24px; left: 24px; z-index: var(--z-float);
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--surface); border: 1px solid var(--glass-border); color: var(--heading);
  display: grid; place-items: center; box-shadow: var(--sh-2);
  backdrop-filter: blur(var(--glass-blur));
  opacity: 0; visibility: hidden; transform: translateY(10px); transition: all var(--dur) var(--ease);
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top i { width: 22px; height: 22px; }

/* Cursor glow (desktop only, injected via JS) */
.cursor-glow {
  position: fixed; top: 0; left: 0; width: 400px; height: 400px; border-radius: 50%;
  background: radial-gradient(circle, rgba(0,194,232,0.18) 0%, transparent 60%);
  pointer-events: none; z-index: 0; transform: translate(-50%, -50%);
  transition: opacity 400ms; opacity: 0; mix-blend-mode: screen;
}

/* ---------- 20. Modal (product quick-view) ---------- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(3,17,40,0.55); backdrop-filter: blur(4px);
  z-index: var(--z-modal); display: grid; place-items: center; padding: var(--sp-3);
  opacity: 0; visibility: hidden; transition: var(--dur);
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal {
  background: var(--surface-solid); border-radius: var(--r-lg); padding: var(--sp-5);
  max-width: 540px; width: 100%; box-shadow: var(--sh-3); position: relative;
  transform: scale(0.95); transition: transform 320ms var(--ease); max-height: 90vh; overflow-y: auto;
}
.modal-overlay.open .modal { transform: scale(1); }
.modal-close {
  position: absolute; top: 16px; right: 16px; width: 40px; height: 40px; border-radius: 50%;
  background: var(--bg-alt); border: none; color: var(--heading); display: grid; place-items: center;
}
.modal-close i { width: 20px; height: 20px; }

/* ---------- 21. Enquiry cart (products page) ---------- */
.cart-bar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: var(--z-sticky);
  background: var(--surface-solid); border-top: 1px solid var(--border); box-shadow: 0 -8px 30px rgba(3,43,95,0.12);
  padding: var(--sp-2) 0; transform: translateY(110%); transition: transform 360ms var(--ease);
}
.cart-bar.show { transform: translateY(0); }
.cart-bar .container { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-2); flex-wrap: wrap; }
.cart-summary { font-family: var(--font-num); font-weight: 700; color: var(--heading); }
.cart-summary span { color: var(--deep-blue); }

.qty { display: inline-flex; align-items: center; border: 1px solid var(--border); border-radius: var(--r-pill); overflow: hidden; }
.qty button { width: 36px; height: 36px; background: var(--bg-alt); border: none; color: var(--heading); font-size: 1.2rem; }
.qty input { width: 44px; text-align: center; border: none; min-height: 36px; background: transparent; }
.qty input::-webkit-outer-spin-button, .qty input::-webkit-inner-spin-button { -webkit-appearance: none; }

/* Page hero (subpages) */
.page-hero { background: var(--grad-deep); color: #fff; padding-top: calc(var(--nav-h) + var(--sp-5)); padding-bottom: var(--sp-6); position: relative; overflow: hidden; text-align: center; }
.page-hero h1 { color: #fff; }
.page-hero p { color: #C5E4FF; margin-inline: auto; max-width: 60ch; }
.page-hero .container { position: relative; z-index: 2; }

/* Wave divider */
.wave-divider { display: block; width: 100%; height: auto; line-height: 0; }
.wave-divider svg { width: 100%; height: auto; display: block; }

/* Comparison table */
.compare-table { width: 100%; border-collapse: collapse; background: var(--surface); border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--sh-2); }
.compare-table th, .compare-table td { padding: 16px; text-align: left; border-bottom: 1px solid var(--border); font-size: 0.92rem; }
.compare-table th { background: var(--navy); color: #fff; font-family: var(--font-head); }
.compare-table tr:last-child td { border-bottom: none; }
.compare-table .check { color: var(--success-aqua); }
.compare-table .cross { color: var(--text-muted); }

/* Utility */
.center { text-align: center; }
.mt-4 { margin-top: var(--sp-4); }
.mb-0 { margin-bottom: 0; }
.flex-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.flex-cta.center { justify-content: center; }
.muted { color: var(--text-muted); }
.hidden { display: none !important; }
.value-list { display: flex; flex-direction: column; gap: 12px; }
.value-list li { display: flex; gap: 12px; align-items: flex-start; }
.value-list li i { width: 22px; height: 22px; color: var(--success-aqua); flex-shrink: 0; margin-top: 2px; }
