/* ============================================================
   WHY SMARTWATT? — real-time home energy intelligence
   Palette from the SmartWatt dashboard:
   amber #fbbf24 (watt/energy) · teal #2dd4bf · sky #38bdf8 ·
   emerald #34d399 · on a deep slate canvas. Plus Jakarta Sans.
   Dark = electric dashboard. Light (default) = clean white slate.
   ============================================================ */

:root {
  --bg: #060d1c;
  --bg-soft: #0c1730;
  --bg-card: rgba(15, 28, 54, 0.55);
  --ink: #eaf2ff;
  --ink-dim: #93a6c9;
  --line: rgba(56, 189, 248, 0.16);
  --line-soft: rgba(56, 189, 248, 0.08);

  --amber: #fbbf24;
  --teal: #2dd4bf;
  --sky: #38bdf8;
  --emerald: #34d399;
  --cyan: #22d3ee;

  --grad: linear-gradient(92deg, #fbbf24 0%, #2dd4bf 52%, #38bdf8 100%);
  --grad-cool: linear-gradient(92deg, #22d3ee 0%, #38bdf8 100%);
  --btn-ink: #04101f;

  --body-bg:
    radial-gradient(900px 600px at 84% -10%, rgba(56, 189, 248, 0.20), transparent 60%),
    radial-gradient(720px 520px at -8% 38%, rgba(45, 212, 191, 0.14), transparent 60%),
    radial-gradient(900px 700px at 50% 112%, rgba(251, 191, 36, 0.12), transparent 60%);

  --nav-bg: rgba(6, 13, 28, 0.72);
  --tint-panel: rgba(12, 23, 48, 0.45);
  --panel-bg: rgba(12, 23, 48, 0.6);
  --well: rgba(4, 12, 26, 0.55);
  --well-line: rgba(56, 189, 248, 0.14);
  --ghost-stroke: rgba(56, 189, 248, 0.13);
  --marquee-stroke: rgba(56, 189, 248, 0.55);
  --chip-bg: rgba(45, 212, 191, 0.08);

  --before-fill: linear-gradient(90deg, rgba(148, 163, 184, 0.55), rgba(148, 163, 184, 0.3));
  --rose: #fb7185;

  --card-shadow-hover: 0 24px 60px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(56, 189, 248, 0.18);
  --shadow-accent: 0 18px 50px rgba(45, 212, 191, 0.4);
  --shadow-accent-hover: 0 22px 70px rgba(56, 189, 248, 0.5);

  --hero-glow-a: radial-gradient(circle, rgba(56, 189, 248, 0.32), transparent 65%);
  --hero-glow-b: radial-gradient(circle, rgba(251, 191, 36, 0.16), transparent 65%);
  --scrim-c: 6, 13, 28;
  --cta-glow:
    radial-gradient(closest-side, rgba(45, 212, 191, 0.38), transparent 70%),
    radial-gradient(closest-side at 62% 42%, rgba(251, 191, 36, 0.16), transparent 70%);
  --loader-glow: radial-gradient(700px 500px at 50% 60%, rgba(56, 189, 248, 0.22), transparent 65%);
  --grain-o: 0.05;

  --cs-line: #c3d6f2;

  --font-display: "Plus Jakarta Sans", system-ui, sans-serif;
  --font-body: "Plus Jakarta Sans", system-ui, sans-serif;

  --pad: clamp(1.25rem, 4vw, 4rem);
  --radius: 20px;
}

/* ---------- light theme (default): white slate + energy accents ---------- */

html[data-theme="light"] {
  --bg: #f3f6fb;
  --bg-soft: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.9);
  --ink: #0b1220;
  --ink-dim: #51617c;
  --line: rgba(13, 148, 136, 0.18);
  --line-soft: rgba(13, 148, 136, 0.1);

  --amber: #d97706;
  --teal: #0d9488;
  --sky: #0284c7;
  --emerald: #059669;
  --cyan: #0891b2;

  --grad: linear-gradient(92deg, #d97706 0%, #0d9488 52%, #0284c7 100%);
  --grad-cool: linear-gradient(92deg, #0891b2 0%, #0284c7 100%);
  --btn-ink: #ffffff;

  --body-bg:
    radial-gradient(900px 600px at 84% -10%, rgba(2, 132, 199, 0.12), transparent 60%),
    radial-gradient(720px 520px at -8% 38%, rgba(13, 148, 136, 0.1), transparent 60%),
    radial-gradient(900px 700px at 50% 112%, rgba(217, 119, 6, 0.1), transparent 60%);

  --nav-bg: rgba(243, 246, 251, 0.82);
  --tint-panel: rgba(13, 148, 136, 0.05);
  --panel-bg: rgba(255, 255, 255, 0.74);
  --well: rgba(13, 148, 136, 0.08);
  --well-line: rgba(13, 148, 136, 0.14);
  --ghost-stroke: rgba(13, 148, 136, 0.14);
  --marquee-stroke: rgba(2, 132, 199, 0.5);
  --chip-bg: rgba(13, 148, 136, 0.08);

  --before-fill: linear-gradient(90deg, rgba(100, 116, 139, 0.45), rgba(100, 116, 139, 0.25));
  --rose: #e11d48;

  --card-shadow-hover: 0 24px 60px rgba(15, 23, 42, 0.16), 0 0 0 1px rgba(13, 148, 136, 0.15);
  --shadow-accent: 0 18px 50px rgba(2, 132, 199, 0.28);
  --shadow-accent-hover: 0 22px 70px rgba(13, 148, 136, 0.4);

  --hero-glow-a: radial-gradient(circle, rgba(2, 132, 199, 0.22), transparent 65%);
  --hero-glow-b: radial-gradient(circle, rgba(217, 119, 6, 0.18), transparent 65%);
  --scrim-c: 243, 246, 251;
  --cta-glow:
    radial-gradient(closest-side, rgba(13, 148, 136, 0.26), transparent 70%),
    radial-gradient(closest-side at 62% 42%, rgba(217, 119, 6, 0.2), transparent 70%);
  --loader-glow: radial-gradient(700px 500px at 50% 60%, rgba(2, 132, 199, 0.16), transparent 65%);
  --grain-o: 0.03;

  --cs-line: #1e293b;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; overflow-x: clip; }

body {
  font-family: var(--font-body);
  background-color: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  overflow-x: hidden;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.5s ease, color 0.5s ease;
}

/* fixed, composited backdrop — avoids the per-frame repaint that
   `background-attachment: fixed` triggers on scroll */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: var(--body-bg);
}

::selection { background: var(--teal); color: var(--bg); }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--amber), var(--sky));
  border-radius: 99px;
  border: 2px solid var(--bg);
}

h1, h2, h3 { font-family: var(--font-display); }

/* ---------- utilities ---------- */

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

.kicker {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--teal);
}

.dot { color: var(--amber); }

.hl {
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hl-amber   { background-image: linear-gradient(92deg, var(--amber), var(--teal)); }
.hl-teal    { background-image: linear-gradient(92deg, var(--teal), var(--cyan)); }
.hl-emerald { background-image: linear-gradient(92deg, var(--emerald), var(--teal)); }
.hl-sky     { background-image: linear-gradient(92deg, var(--sky), var(--cyan)); }

/* ---------- grain overlay ---------- */

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 4;
  opacity: var(--grain-o);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- loader ---------- */

.loader {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: none;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  background-image: var(--loader-glow);
}
html.js .loader { display: flex; animation: loader-bail 0.6s ease 4s forwards; }
@keyframes loader-bail { to { opacity: 0; visibility: hidden; } }

.loader.is-done { opacity: 0; visibility: hidden; transition: opacity 0.6s ease, visibility 0.6s; }

.loader-inner { display: grid; justify-items: center; gap: 1rem; }

.loader-mark {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.26em;
  font-size: clamp(0.9rem, 2.6vw, 1.2rem);
}

.loader-line {
  width: min(240px, 50vw);
  height: 2px;
  background: var(--line);
  border-radius: 99px;
  overflow: hidden;
}
.loader-line-fill {
  display: block;
  height: 100%;
  width: 100%;
  background: var(--grad);
  transform-origin: left;
  animation: loader-grow 1.4s cubic-bezier(0.65, 0, 0.35, 1) infinite;
}
@keyframes loader-grow {
  0% { transform: scaleX(0); transform-origin: left; }
  55% { transform: scaleX(1); transform-origin: left; }
  56% { transform-origin: right; }
  100% { transform: scaleX(0); transform-origin: right; }
}

.loader-tag { font-size: 0.78rem; color: var(--ink-dim); letter-spacing: 0.12em; }

/* ---------- progress bar ---------- */

.progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 80;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: left;
}

/* ---------- nav ---------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 70;
  display: flex;
  align-items: center;
  gap: 1.6rem;
  padding: 1.1rem var(--pad);
  transition: background 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease;
}
.nav.is-scrolled {
  padding-block: 0.7rem;
  background: var(--nav-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--line);
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.18em;
  color: var(--ink);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 1.6rem;
  margin-left: auto;
}
.nav-links a {
  color: var(--ink-dim);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: color 0.25s ease;
}
.nav-links a:hover { color: var(--teal); }

.nav-cta {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
  color: var(--btn-ink);
  text-decoration: none;
  background: var(--grad);
  padding: 0.55rem 1.2rem;
  border-radius: 99px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.nav > .nav-cta { margin-left: auto; }
.nav-links ~ .nav-cta { margin-left: 0; }
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(56, 189, 248, 0.35);
}

/* theme toggle — top right corner */
.theme-btn {
  width: 40px;
  height: 40px;
  flex: none;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--teal);
  cursor: pointer;
  transition: border-color 0.3s ease, transform 0.3s ease, color 0.3s ease;
}
.theme-btn:hover { border-color: var(--teal); transform: rotate(18deg); color: var(--sky); }
.theme-btn svg { width: 18px; height: 18px; }
html[data-theme="light"] .ic-sun { display: none; }
html:not([data-theme="light"]) .ic-moon { display: none; }

/* ---------- scroll cue (shared) ---------- */

.scroll-cue-track {
  width: 22px; height: 36px;
  border: 1.5px solid var(--line);
  border-radius: 99px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}
.scroll-cue-dot {
  width: 4px; height: 8px;
  border-radius: 99px;
  background: var(--teal);
  animation: cue 1.8s ease-in-out infinite;
}
@keyframes cue {
  0%, 100% { transform: translateY(0); opacity: 1; }
  60% { transform: translateY(12px); opacity: 0.2; }
}
.scroll-cue-text {
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

/* ---------- cutscene ---------- */

.cutscene { position: relative; }

.cutscene-stage {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(0.8rem, 2vh, 1.6rem);
  padding: 5.5rem var(--pad) 3.5rem;
  will-change: transform;
}

.cs-kicker {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.36em;
  text-transform: uppercase;
  color: var(--teal);
}

.cs-headlines {
  position: relative;
  width: 100%;
  height: clamp(3.2rem, 9vw, 6.4rem);
}
.cs-h {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  text-align: center;
  font-size: clamp(1.5rem, 5.7vw, 4.4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  white-space: nowrap;
}
html.js .cs-h:not(.is-first) { opacity: 0; }

.cs-art { width: 100%; display: grid; justify-items: center; }
.cs-svg {
  width: min(820px, 94vw);
  height: auto;
  overflow: visible;
}

.cs-pipes, .cs-light { stroke: var(--cs-line); stroke-width: 3; }
.cs-plants, .cs-roots { stroke: var(--amber); stroke-width: 3; }
.cs-roots { opacity: 0.8; stroke-width: 2.6; }
.cs-arrows { stroke: var(--teal); stroke-width: 3; }
.cs-waterg { stroke: var(--sky); stroke-width: 3; }
.cs-wave { opacity: 0.9; }
.cs-fill { fill: color-mix(in srgb, var(--amber) 32%, transparent); stroke: none; }
.cs-drop { fill: var(--amber); stroke: none; }
.cs-rays line { stroke: var(--teal); stroke-width: 3; opacity: 0.9; }
.cs-sparks { stroke: var(--amber); stroke-width: 2.6; opacity: 0.9; }

.cs-cue {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-top: 0.6rem;
}

/* ---------- hero ---------- */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(6rem, 12vh, 9rem) var(--pad) 4rem;
  overflow: hidden;
}

#bg3d {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
}

/* scrim keeps the headline readable over the 3D scene */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(var(--scrim-c), 0) 40%, rgba(var(--scrim-c), 0.5) 100%);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
}
.hero-glow-a {
  width: 46vw; height: 46vw;
  right: -8vw; top: 6vh;
  background: var(--hero-glow-a);
}
.hero-glow-b {
  width: 30vw; height: 30vw;
  left: -10vw; bottom: -6vh;
  background: var(--hero-glow-b);
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 1200px;
}

.hero-kicker {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 1.4rem;
}
/* the kicker sits over the bright 3D core — in light mode use a darker
   teal plus a soft white halo so it stays readable on top of it */
html[data-theme="light"] .hero-kicker {
  color: #0f766e;
  font-weight: 700;
  text-shadow: 0 0 12px rgba(255, 255, 255, 0.85), 0 1px 2px rgba(255, 255, 255, 0.95);
}

.hero-title {
  font-weight: 800;
  font-size: clamp(1.85rem, 9.5vw, 8.5rem);
  line-height: 0.95;
  letter-spacing: -0.025em;
  text-transform: uppercase;
}
.hero-title .line { display: block; overflow: hidden; padding-bottom: 0.06em; }
.hero-title .line-inner { display: inline-block; will-change: transform; }

.hero-sub {
  max-width: 56ch;
  margin-top: 1.8rem;
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  color: var(--ink-dim);
}
.hero-sub strong { color: var(--teal); font-weight: 700; }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.4rem;
}

.btn {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  padding: 0.95rem 1.8rem;
  border-radius: 99px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.btn-solid { background: var(--grad); color: var(--btn-ink); }
.btn-solid:hover { transform: translateY(-3px); box-shadow: 0 12px 34px rgba(45, 212, 191, 0.35); }
.btn-ghost { color: var(--teal); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--teal); transform: translateY(-3px); }

.scroll-cue {
  position: absolute;
  z-index: 2;
  left: var(--pad);
  bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
}

/* ---------- marquee ---------- */

.marquee {
  border-block: 1px solid var(--line);
  background: var(--tint-panel);
  overflow: hidden;
}

.marquee-track {
  display: flex;
  flex-wrap: nowrap;
  width: max-content;
  padding-block: 1.05rem;
  animation: scroll-x var(--mq-dur, 30s) linear infinite;
  will-change: transform;
  backface-visibility: hidden;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee[data-direction="right"] .marquee-track { animation-direction: reverse; }
/* --mq-shift is set in JS to one set's exact pixel width (a px transform
   stays on the GPU compositor; a % transform may not) */
@keyframes scroll-x {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(var(--mq-shift, -50%), 0, 0); }
}

.marquee-group {
  display: flex;
  flex: none;
  align-items: center;
  gap: 2.4rem;
  padding-right: 2.4rem;
}
.marquee-group span {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(0.95rem, 2vw, 1.25rem);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal);
  opacity: 0.9;
}
.marquee-group span:nth-child(4n + 3) {
  -webkit-text-stroke: 1px var(--marquee-stroke);
  color: transparent;
}
.mq-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--grad);
  flex: none;
}

/* ---------- stats showcase ---------- */

section { position: relative; }

.stats { overflow: hidden; }

.section-head {
  text-align: center;
  display: grid;
  gap: 1rem;
  padding: clamp(5rem, 10vw, 8rem) var(--pad) clamp(2.5rem, 5vw, 4rem);
}
.section-head h2 {
  font-size: clamp(2rem, 5.4vw, 4rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}
.section-hint {
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.stats-stage { position: relative; }

/* default (no pin / no JS): show the grid, hide the slide reel */
.stats-track { display: none; }
.stage-dots { display: none; }
.stats-grid-wrap { padding: 0 var(--pad) clamp(4rem, 8vw, 6rem); }

html.pin .stats-stage { height: 100vh; height: 100svh; overflow: hidden; }
html.pin .stats-track { display: flex; height: 100%; will-change: transform; }
html.pin .stats-grid-wrap {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 1rem var(--pad);
}
html.pin .stage-dots {
  display: flex;
  position: absolute;
  bottom: 1.7rem;
  left: 50%;
  transform: translateX(-50%);
  gap: 0.55rem;
}
.stage-dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--line);
  transition: background 0.3s ease, transform 0.3s ease;
}
.stage-dot.is-active { background: var(--teal); transform: scale(1.35); }

/* zoomed-in stat slides */
.stat-slide {
  flex: 0 0 100vw;
  height: 100%;
  display: grid;
  place-items: center;
  padding: 4rem var(--pad) 3rem;
}
.slide-inner {
  display: grid;
  justify-items: center;
  text-align: center;
  gap: 0.3rem;
  will-change: transform;
}
.slide-icon {
  width: 76px; height: 76px;
  display: grid;
  place-items: center;
  border-radius: 22px;
  color: var(--accent, var(--teal));
  background: color-mix(in srgb, var(--accent, var(--teal)) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent, var(--teal)) 32%, transparent);
  margin-bottom: 1rem;
}
.slide-icon svg { width: 38px; height: 38px; }

.slide-value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(6rem, 21vw, 16rem);
  line-height: 0.9;
  letter-spacing: -0.04em;
  display: flex;
  align-items: baseline;
  padding-inline: 0.16em;
  background: linear-gradient(120deg, var(--ink) 12%, var(--accent, var(--teal)) 85%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.slide-value .suffix { font-size: 0.45em; }

.slide-label {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1rem, 2.4vw, 1.5rem);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--accent, var(--teal));
}

.slide-caption {
  margin-top: 1.1rem;
  max-width: 46ch;
  font-size: clamp(1rem, 1.7vw, 1.3rem);
  color: var(--ink-dim);
}

.stat-slide[data-accent="amber"],   .stat-card[data-accent="amber"]   { --accent: var(--amber); }
.stat-slide[data-accent="teal"],    .stat-card[data-accent="teal"]    { --accent: var(--teal); }
.stat-slide[data-accent="sky"],     .stat-card[data-accent="sky"]     { --accent: var(--sky); }
.stat-slide[data-accent="emerald"], .stat-card[data-accent="emerald"] { --accent: var(--emerald); }

/* ---------- stat cards (the full grid) ---------- */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
  width: 100%;
  max-width: 1340px;
  margin-inline: auto;
}

.stat-card {
  --accent: var(--teal);
  position: relative;
  padding: 2.1rem 1.7rem 1.9rem;
  border-radius: 24px;
  border: 1px solid transparent;
  background:
    linear-gradient(var(--bg-card), var(--bg-card)) padding-box,
    linear-gradient(160deg,
      color-mix(in srgb, var(--accent) 55%, transparent),
      color-mix(in srgb, var(--accent) 8%, transparent) 45%,
      color-mix(in srgb, var(--accent) 32%, transparent)) border-box;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  transform-style: preserve-3d;
  overflow: hidden;
}
.stat-card:hover { box-shadow: var(--card-shadow-hover); }

.card-glow {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.35s ease;
  background: radial-gradient(280px circle at var(--mx, 50%) var(--my, 50%),
    color-mix(in srgb, var(--accent) 16%, transparent), transparent 65%);
}
.stat-card:hover .card-glow { opacity: 1; }

.card-index {
  position: absolute;
  top: 1.25rem;
  right: 1.35rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: color-mix(in srgb, var(--accent) 65%, var(--ink-dim));
  opacity: 0.8;
}

.stat-icon {
  position: relative;
  width: 64px; height: 64px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  margin-bottom: 1.5rem;
}
.stat-icon svg { width: 30px; height: 30px; }

/* slow conic shimmer around the icon */
.icon-ring {
  position: absolute;
  inset: -4px;
  border-radius: 20px;
  padding: 2px;
  background: conic-gradient(
    transparent 0deg 70deg,
    color-mix(in srgb, var(--accent) 85%, transparent) 110deg,
    transparent 150deg 360deg);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  animation: ring-spin 6s linear infinite;
}
@keyframes ring-spin { to { transform: rotate(360deg); } }

.stat-value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(3.2rem, 5.2vw, 4.8rem);
  line-height: 1;
  letter-spacing: -0.03em;
  display: flex;
  align-items: baseline;
  padding-right: 0.14em;
  background: linear-gradient(135deg, var(--ink) 30%, var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-value .suffix { font-size: 0.5em; margin-left: 0.06em; }

.stat-label {
  margin-top: 0.4rem;
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.stat-caption {
  margin-top: 0.8rem;
  font-size: 0.88rem;
  color: var(--ink-dim);
}

.stat-meter {
  margin-top: 1.4rem;
  height: 6px;
  border-radius: 99px;
  background: var(--well);
  overflow: hidden;
}
.meter-fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, color-mix(in srgb, var(--accent) 55%, var(--sky)), var(--accent));
  box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 55%, transparent);
}

/* ---------- benefits ---------- */

.benefits { padding-block: clamp(2rem, 5vw, 4rem); }

.benefit {
  position: relative;
  padding: clamp(4rem, 9vw, 7rem) var(--pad);
  overflow: hidden;
}
.benefit + .benefit { border-top: 1px solid var(--line-soft); }

.ghost {
  position: absolute;
  top: 0.5rem;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(5rem, 17vw, 15rem);
  line-height: 1;
  letter-spacing: 0.02em;
  color: transparent;
  -webkit-text-stroke: 1px var(--ghost-stroke);
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
}

.benefit-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
  max-width: 1200px;
  margin-inline: auto;
  padding-top: clamp(3rem, 8vw, 6rem);
}
.benefit-grid.flip .benefit-copy { order: 2; }
.benefit-grid.flip .benefit-viz { order: 1; }

.benefit-index {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.3em;
  color: var(--teal);
}
.benefit-index::after {
  content: "";
  display: inline-block;
  width: 56px;
  height: 1px;
  background: var(--grad);
  vertical-align: middle;
  margin-left: 0.9rem;
}

.benefit-copy h3 {
  margin-top: 1.1rem;
  font-size: clamp(1.9rem, 4.4vw, 3.4rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}
.benefit-copy p {
  margin-top: 1.4rem;
  max-width: 52ch;
  color: var(--ink-dim);
  font-size: clamp(0.95rem, 1.4vw, 1.05rem);
}

.benefit-viz { display: grid; justify-items: center; }

.viz {
  width: 100%;
  max-width: 440px;
  padding: 2.2rem 2rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  background:
    linear-gradient(var(--panel-bg), var(--panel-bg)) padding-box,
    linear-gradient(160deg,
      color-mix(in srgb, var(--teal) 35%, transparent),
      color-mix(in srgb, var(--teal) 5%, transparent) 50%,
      color-mix(in srgb, var(--sky) 22%, transparent)) border-box;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.viz-note {
  margin-top: 1.6rem;
  text-align: center;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

/* viz 01 — live circuits */
.circuits { display: grid; gap: 0.85rem; }
.circuit { display: grid; grid-template-columns: 5.5rem 1fr; align-items: center; gap: 0.8rem; }
.circuit-name { font-size: 0.8rem; color: var(--ink-dim); letter-spacing: 0.02em; }
.circuit-bar {
  height: 12px;
  border-radius: 99px;
  border: 1px solid var(--line);
  background: var(--well);
  overflow: hidden;
}
.circuit-fill {
  display: block;
  height: 100%;
  border-radius: 99px;
  background: var(--grad);
  box-shadow: 0 0 12px color-mix(in srgb, var(--teal) 45%, transparent);
}

/* viz 02 — live usage chart */
.viz-catch { position: relative; }
.chart { width: 100%; height: auto; display: block; }
.chart-axis { stroke: var(--well-line); stroke-width: 1.5; }
.chart-line {
  fill: none;
  stroke: var(--teal);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 6px color-mix(in srgb, var(--teal) 50%, transparent));
}
.chart-alert { fill: var(--rose); stroke: var(--bg); stroke-width: 2; }
.alert-chip {
  position: absolute;
  top: 0.4rem;
  right: 0.6rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: #fff;
  background: linear-gradient(92deg, var(--rose), #fb923c);
  padding: 0.4rem 0.85rem;
  border-radius: 99px;
  box-shadow: 0 10px 30px color-mix(in srgb, var(--rose) 40%, transparent);
}

/* viz 03 — bill cut */
.viz-cut { position: relative; }
.bill { display: grid; gap: 1.3rem; }
.bill-row { display: grid; grid-template-columns: 6.5rem 1fr auto; align-items: center; gap: 0.8rem; }
.bill-label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-dim); }
.bill-bar {
  height: 18px;
  border-radius: 99px;
  border: 1px solid var(--line);
  background: var(--well);
  overflow: hidden;
}
.bill-fill { display: block; height: 100%; border-radius: 99px; }
.bill-fill.before { background: var(--before-fill); }
.bill-fill.after { background: var(--grad); box-shadow: 0 0 16px color-mix(in srgb, var(--emerald) 45%, transparent); }
.bill-amt { font-family: var(--font-display); font-weight: 800; font-size: 1.05rem; color: var(--ink); }
.save-chip {
  position: absolute;
  top: -0.6rem;
  right: -0.4rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--btn-ink);
  background: var(--grad);
  padding: 0.45rem 0.95rem;
  border-radius: 99px;
  box-shadow: 0 10px 30px color-mix(in srgb, var(--teal) 35%, transparent);
  transform: rotate(4deg);
}

/* viz 04 — 24/7 ring */
.viz-clock { display: grid; justify-items: center; }
.ring-wrap { position: relative; width: clamp(200px, 26vw, 260px); }
.ring { width: 100%; height: auto; transform: rotate(-90deg); }
.ring-track { fill: none; stroke: var(--well-line); stroke-width: 10; }
.ring-sweep {
  fill: none;
  stroke-width: 10;
  stroke-linecap: round;
  stroke-dasharray: 100;
  stroke-dashoffset: 0; /* full ring by default; JS rewinds then sweeps */
}
.ring-stop-a { stop-color: var(--amber); }
.ring-stop-b { stop-color: var(--teal); }
.ring-stop-c { stop-color: var(--sky); }
.ring-center {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
  gap: 0.1rem;
}
.ring-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.6rem, 5vw, 3.6rem);
  line-height: 1;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.ring-sub {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

/* ---------- CTA ---------- */

.cta {
  position: relative;
  text-align: center;
  padding: clamp(6rem, 14vw, 11rem) var(--pad);
  overflow: hidden;
}

.cta-glow {
  position: absolute;
  left: 50%;
  top: 55%;
  width: min(900px, 120vw);
  aspect-ratio: 1.4;
  transform: translate(-50%, -50%);
  background: var(--cta-glow);
  filter: blur(40px);
  pointer-events: none;
}

.cta-title {
  position: relative;
  margin-top: 1.2rem;
  font-size: clamp(1.85rem, 9.5vw, 9rem);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.025em;
}

.cta-sub {
  position: relative;
  max-width: 46ch;
  margin: 1.8rem auto 0;
  color: var(--ink-dim);
  font-size: clamp(0.98rem, 1.5vw, 1.15rem);
}

.cta-action { position: relative; margin-top: 3rem; display: flex; justify-content: center; }

.btn-cta {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  letter-spacing: 0.02em;
  color: var(--btn-ink);
  text-decoration: none;
  background: var(--grad);
  padding: 1.25rem 2.6rem;
  border-radius: 99px;
  box-shadow: var(--shadow-accent);
  transition: box-shadow 0.3s ease;
  will-change: transform;
}
.btn-cta:hover { box-shadow: var(--shadow-accent-hover); }
.btn-cta .pulse {
  position: absolute;
  inset: 0;
  border-radius: 99px;
  border: 1.5px solid var(--teal);
  opacity: 0;
  pointer-events: none;
}
.btn-cta-arrow { transition: transform 0.3s ease; }
.btn-cta:hover .btn-cta-arrow { transform: translateX(6px); }

/* ---------- footer ---------- */

.footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0.8rem 1.5rem;
  align-items: center;
  padding: 2rem var(--pad) 2.4rem;
  border-top: 1px solid var(--line);
  font-size: 0.82rem;
  color: var(--ink-dim);
}
.footer-tag { grid-column: 2; text-align: center; color: var(--teal); }
.footer-credit { grid-column: 3; justify-self: end; text-align: right; }

/* ---------- responsive ---------- */

@media (max-width: 1100px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .footer { grid-template-columns: 1fr; justify-items: center; text-align: center; gap: 0.6rem; }
  .footer-tag, .footer-credit { grid-column: 1; justify-self: center; text-align: center; }
}

@media (max-width: 880px) {
  #bg3d { filter: brightness(0.7) saturate(1.05); }
  html[data-theme="light"] #bg3d { filter: none; opacity: 0.5; }
  .hero::before {
    background:
      radial-gradient(130% 72% at 50% 60%, rgba(var(--scrim-c), 0.62), rgba(var(--scrim-c), 0) 72%),
      linear-gradient(180deg, rgba(var(--scrim-c), 0) 20%, rgba(var(--scrim-c), 0.6) 100%);
  }
  .nav-links { display: none; }
  .nav > .nav-cta { margin-left: auto; }
  .benefit-grid { grid-template-columns: 1fr; }
  .benefit-grid.flip .benefit-copy { order: 1; }
  .benefit-grid.flip .benefit-viz { order: 2; }
  .scroll-cue { display: none; }
  .ghost { left: 0; transform: none; }

  /* compact cards so the pinned grid always fits the viewport */
  html.pin .stats-grid { gap: 0.7rem; }
  html.pin .stat-card { padding: 1.3rem 1.1rem 1.2rem; border-radius: 18px; }
  html.pin .stat-caption { display: none; }
  html.pin .stat-icon { width: 46px; height: 46px; margin-bottom: 0.9rem; }
  html.pin .stat-icon svg { width: 22px; height: 22px; }
  html.pin .stat-value { font-size: 2.4rem; }
  html.pin .stat-label { font-size: 0.78rem; }
  html.pin .stat-meter { margin-top: 0.9rem; height: 5px; }
}

@media (max-width: 560px) {
  /* shrink the nav so logo + Connect + theme toggle always fit */
  .nav { gap: 0.55rem; padding-inline: 0.9rem; }
  .nav-logo { font-size: 0.78rem; letter-spacing: 0.06em; }
  .nav-cta { padding: 0.5rem 0.85rem; font-size: 0.72rem; letter-spacing: 0.01em; }
  .theme-btn { width: 34px; height: 34px; }
  .cs-headlines { height: 5.6rem; }
  .cs-h {
    white-space: normal;
    line-height: 1.05;
    font-size: clamp(1.45rem, 7vw, 3rem);
    padding-inline: 0.5rem;
  }
  .stats-grid { grid-template-columns: 1fr; }
  html.pin .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .circuit { grid-template-columns: 4.5rem 1fr; }
}

/* ---------- reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .marquee-track { animation: none; }
  .scroll-cue-dot { animation: none; }
  .loader-line-fill { animation: none; transform: none; }
  .icon-ring { animation: none; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}