/* =========================================================
   Enera Süd – Design-Demo
   Mobile-first, ohne Frameworks oder externe UI-Bibliotheken
   ========================================================= */

:root {
  --color-bg: #f4f2ec;
  --color-surface: #ffffff;
  --color-surface-soft: #e9eef0;
  --color-surface-tint: #edf3f0;
  --color-ink: #142329;
  --color-ink-soft: #536269;
  --color-primary: #123b3d;
  --color-primary-2: #1d5758;
  --color-primary-3: #d8e8e3;
  --color-accent: #c8ef64;
  --color-accent-strong: #a9d638;
  --color-solar: #f5b74f;
  --color-line: rgba(20, 35, 41, 0.13);
  --color-line-dark: rgba(255, 255, 255, 0.16);
  --color-danger: #a63131;
  --color-success: #176644;

  --font-sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Aptos Display", "Segoe UI Variable Display", var(--font-sans);

  --step--1: clamp(0.82rem, 0.79rem + 0.13vw, 0.9rem);
  --step-0: clamp(0.96rem, 0.92rem + 0.18vw, 1.08rem);
  --step-1: clamp(1.12rem, 1.05rem + 0.35vw, 1.34rem);
  --step-2: clamp(1.35rem, 1.21rem + 0.7vw, 1.8rem);
  --step-3: clamp(1.72rem, 1.42rem + 1.5vw, 2.72rem);
  --step-4: clamp(2.1rem, 1.55rem + 2.75vw, 4.1rem);
  --step-5: clamp(2.65rem, 1.6rem + 5.3vw, 6.8rem);

  --space-1: clamp(0.45rem, 0.4rem + 0.25vw, 0.65rem);
  --space-2: clamp(0.75rem, 0.66rem + 0.45vw, 1rem);
  --space-3: clamp(1rem, 0.85rem + 0.75vw, 1.5rem);
  --space-4: clamp(1.5rem, 1.2rem + 1.5vw, 2.5rem);
  --space-5: clamp(2rem, 1.45rem + 2.75vw, 3.75rem);
  --space-6: clamp(3rem, 2rem + 5vw, 6.5rem);
  --space-7: clamp(4.5rem, 3rem + 7.5vw, 10rem);

  --radius-sm: 0.45rem;
  --radius-md: 0.85rem;
  --radius-lg: 1.35rem;
  --radius-xl: 2rem;
  --radius-pill: 999px;

  --shadow-sm: 0 10px 24px rgba(24, 42, 47, 0.08);
  --shadow-md: 0 22px 60px rgba(24, 42, 47, 0.12);
  --shadow-lg: 0 36px 90px rgba(9, 28, 31, 0.19);

  --transition-fast: 160ms ease;
  --transition-base: 280ms cubic-bezier(0.2, 0.75, 0.25, 1);
  --transition-slow: 700ms cubic-bezier(0.2, 0.75, 0.25, 1);

  --container: 78rem;
  --container-wide: 92rem;
  --content: 45rem;
  --header-height: 4.7rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 1.5rem);
  overflow-x: hidden;
}

body {
  margin: 0;
  min-width: 20rem;
  overflow-x: hidden;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: var(--step-0);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

img {
  height: auto;
  background: #dfe5e4;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  border: 0;
}

p,
h1,
h2,
h3,
h4,
ul,
ol,
dl,
blockquote,
figure {
  margin-top: 0;
}

h1,
h2,
h3,
h4 {
  margin-bottom: 0.75em;
  font-family: var(--font-display);
  font-weight: 750;
  line-height: 1.06;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

h1 {
  font-size: var(--step-5);
}

h2 {
  font-size: var(--step-4);
}

h3 {
  font-size: var(--step-2);
}

h4 {
  font-size: var(--step-1);
}

p {
  color: var(--color-ink-soft);
}

ul,
ol {
  padding-left: 1.2rem;
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration-thickness: 0.12em;
}

:focus-visible {
  outline: 3px solid var(--color-solar);
  outline-offset: 4px;
}

::selection {
  background: var(--color-accent);
  color: var(--color-primary);
}

[hidden] {
  display: none !important;
}

.svg-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.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: fixed;
  z-index: 9999;
  top: 0.75rem;
  left: 0.75rem;
  transform: translateY(-160%);
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: var(--color-primary);
  font-weight: 800;
  text-decoration: none;
  transition: transform var(--transition-fast);
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

.section {
  position: relative;
  padding-block: var(--space-7);
}

.section--light {
  background: #f8f8f5;
}

.section--tinted {
  background: var(--color-surface-tint);
}

.section--bluegray {
  background: var(--color-surface-soft);
}

.section--dark {
  background: var(--color-primary);
  color: #f6fbfa;
}

.section--dark p,
.section--dark .section-heading p {
  color: rgba(246, 251, 250, 0.7);
}

.section-heading {
  max-width: 47rem;
  margin-bottom: var(--space-5);
}

.section-heading--wide {
  max-width: 64rem;
}

.section-heading--split {
  max-width: none;
  display: grid;
  gap: var(--space-3);
}

.section-heading > p:last-child {
  max-width: 42rem;
  margin-bottom: 0;
}

.section-heading h2 {
  margin-bottom: 0.42em;
}

.section-heading--light h2,
.section-heading--light .eyebrow {
  color: #f8fbfa;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1.25rem;
  color: var(--color-primary-2);
  font-size: var(--step--1);
  font-weight: 800;
  letter-spacing: 0.13em;
  line-height: 1.2;
  text-transform: uppercase;
}

.eyebrow > span {
  width: 1.8rem;
  height: 0.16rem;
  background: var(--color-accent-strong);
}

.demo-note {
  margin-bottom: 0;
  font-size: var(--step--1);
  color: #6b777b;
}

/* Buttons and links */
.button {
  min-height: 3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.82rem 1.15rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 800;
  line-height: 1.1;
  text-align: center;
  text-decoration: none;
  transition: transform var(--transition-fast), background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.button:hover {
  transform: translateY(-2px);
  text-decoration: none;
}

.button svg {
  width: 1.1rem;
  height: 1.1rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.button--primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 10px 24px rgba(18, 59, 61, 0.2);
}

.button--primary:hover {
  background: #0b2f31;
  box-shadow: 0 14px 34px rgba(18, 59, 61, 0.25);
}

.button--secondary {
  border-color: var(--color-line);
  background: rgba(255, 255, 255, 0.72);
  color: var(--color-primary);
}

.button--secondary:hover {
  border-color: var(--color-primary);
  background: #fff;
}

.button--accent {
  background: var(--color-accent);
  color: var(--color-primary);
  box-shadow: 0 12px 30px rgba(200, 239, 100, 0.15);
}

.button--accent:hover {
  background: #d5f57f;
}

.button--ghost {
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.button--ghost:hover {
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.14);
}

.button--large {
  min-height: 3.55rem;
  padding-inline: 1.35rem;
}

.button--full {
  width: 100%;
}

.button-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.button-group .button {
  width: 100%;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--color-primary);
  font-size: 0.94rem;
  font-weight: 800;
  text-decoration: none;
}

.text-link svg {
  width: 1.05rem;
  height: 1.05rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform var(--transition-fast);
}

.text-link:hover svg {
  transform: translateX(0.25rem);
}

/* Header */
.site-header {
  position: fixed;
  z-index: 1000;
  inset: 0 0 auto;
  height: var(--header-height);
  border-bottom: 1px solid transparent;
  transition: height var(--transition-base), background var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base), backdrop-filter var(--transition-base);
}

.site-header.is-scrolled,
.site-header.is-menu-open {
  background: rgba(244, 242, 236, 0.88);
  border-bottom-color: var(--color-line);
  box-shadow: 0 7px 30px rgba(23, 39, 44, 0.07);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--color-primary);
  text-decoration: none;
}

.brand-mark {
  position: relative;
  width: 2.35rem;
  height: 2.35rem;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: 0.65rem;
  background: var(--color-primary);
}

.brand-mark span {
  position: absolute;
  width: 1.55rem;
  height: 0.16rem;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  transform-origin: left center;
}

.brand-mark span:nth-child(1) {
  transform: translate(-0.3rem, -0.45rem) rotate(35deg);
}

.brand-mark span:nth-child(2) {
  transform: translate(-0.25rem, 0) rotate(-22deg);
}

.brand-mark span:nth-child(3) {
  transform: translate(-0.15rem, 0.47rem) rotate(25deg);
}

.brand-copy {
  display: grid;
  line-height: 1;
}

.brand-copy strong {
  font-family: var(--font-display);
  font-size: 1.02rem;
  letter-spacing: -0.035em;
}

.brand-copy small {
  margin-top: 0.2rem;
  color: var(--color-ink-soft);
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.nav-toggle {
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--color-line);
  border-radius: 0.7rem;
  background: rgba(255, 255, 255, 0.68);
  color: var(--color-primary);
  cursor: pointer;
}

.nav-toggle-lines {
  width: 1.35rem;
  display: grid;
  gap: 0.27rem;
}

.nav-toggle-lines i {
  display: block;
  width: 100%;
  height: 0.13rem;
  border-radius: var(--radius-pill);
  background: currentColor;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-lines i:nth-child(1) {
  transform: translateY(0.4rem) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-lines i:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-lines i:nth-child(3) {
  transform: translateY(-0.4rem) rotate(-45deg);
}

.main-navigation {
  position: fixed;
  z-index: 999;
  inset: var(--header-height) 0 auto;
  max-height: calc(100dvh - var(--header-height));
  overflow-y: auto;
  padding: 1rem;
  border-bottom: 1px solid var(--color-line);
  background: rgba(244, 242, 236, 0.98);
  box-shadow: var(--shadow-md);
}

.js .main-navigation {
  visibility: hidden;
  opacity: 0;
  transform: translateY(-1rem);
  pointer-events: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
}

.js .main-navigation.is-open {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.main-navigation ul {
  list-style: none;
  display: grid;
  gap: 0.15rem;
  margin: 0 0 1rem;
  padding: 0;
}

.main-navigation li {
  border-bottom: 1px solid var(--color-line);
}

.main-navigation li a {
  min-height: 3.25rem;
  display: flex;
  align-items: center;
  color: var(--color-ink);
  font-weight: 700;
  text-decoration: none;
}

.main-navigation li a.is-active {
  color: var(--color-primary-2);
}

.nav-cta {
  width: 100%;
}

.no-js .nav-toggle {
  display: none;
}

.no-js .main-navigation {
  position: static;
  max-height: none;
  box-shadow: none;
}

/* Hero */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-block: calc(var(--header-height) + var(--space-5)) var(--space-6);
  background:
    radial-gradient(circle at 84% 16%, rgba(200, 239, 100, 0.2), transparent 29rem),
    radial-gradient(circle at 5% 55%, rgba(29, 87, 88, 0.08), transparent 25rem),
    var(--color-bg);
}

.hero-grid-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.26;
  background-image:
    linear-gradient(rgba(18, 59, 61, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 59, 61, 0.08) 1px, transparent 1px);
  background-size: 4.5rem 4.5rem;
  mask-image: linear-gradient(to bottom, black, transparent 75%);
  pointer-events: none;
}

.hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-5);
}

.hero-content {
  max-width: 47rem;
}

.hero h1 {
  margin-bottom: 0.35em;
  color: var(--color-ink);
}

.hero h1 span {
  color: var(--color-primary-2);
}

.hero-intro {
  max-width: 42rem;
  margin-bottom: 1.75rem;
  font-size: var(--step-1);
}

.hero-trust {
  list-style: none;
  display: grid;
  gap: 0.6rem;
  margin: 1.6rem 0 1rem;
  padding: 0;
}

.hero-trust li {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--color-ink);
  font-size: 0.92rem;
  font-weight: 700;
}

.hero-trust svg,
.check-list svg {
  width: 1.15rem;
  height: 1.15rem;
  flex: 0 0 auto;
  fill: none;
  stroke: var(--color-primary-2);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.hero-visual {
  position: relative;
  min-width: 0;
}

.hero-photo-wrap {
  position: relative;
  aspect-ratio: 4 / 4.7;
  overflow: hidden;
  border-radius: 1.1rem 1.1rem 4rem 1.1rem;
  background: var(--color-surface-soft);
  box-shadow: var(--shadow-lg);
}

.hero-photo-wrap::before {
  content: "";
  position: absolute;
  z-index: 2;
  inset: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 0.75rem 0.75rem 3.4rem 0.75rem;
  pointer-events: none;
}

.hero-photo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 58% center;
}

.hero-photo-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(9, 34, 35, 0.65), transparent 58%);
}

.hero-system-label {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.72rem 0.86rem;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 0.7rem;
  background: rgba(14, 47, 49, 0.78);
  color: #fff;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.hero-system-label svg {
  width: 1.45rem;
  height: 1.45rem;
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.hero-system-label span {
  display: grid;
  line-height: 1.1;
  font-size: 0.8rem;
  font-weight: 800;
}

.hero-system-label small {
  margin-bottom: 0.2rem;
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-system-label--solar {
  top: 1.4rem;
  left: 1.4rem;
}

.hero-system-label--storage {
  right: 1.4rem;
  bottom: 5.6rem;
}

.hero-metrics {
  position: relative;
  z-index: 4;
  width: calc(100% - 1.5rem);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: -3.2rem auto 0;
  overflow: hidden;
  border: 1px solid rgba(20, 35, 41, 0.08);
  border-radius: var(--radius-lg);
  background: var(--color-line);
  box-shadow: var(--shadow-md);
}

.hero-metrics div {
  min-width: 0;
  display: grid;
  align-content: center;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.95);
}

.hero-metrics strong {
  color: var(--color-primary);
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 5vw, 1.65rem);
  line-height: 1;
}

.hero-metrics span {
  margin-top: 0.35rem;
  color: var(--color-ink-soft);
  font-size: 0.72rem;
}

/* Trust bar */
.trust-bar {
  padding-block: 1.15rem;
  border-block: 1px solid var(--color-line);
  background: var(--color-surface);
}

.trust-bar-inner {
  display: grid;
  gap: 0.75rem;
}

.trust-bar p {
  margin: 0;
  color: var(--color-primary);
  font-weight: 850;
}

.trust-bar ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1rem;
  margin: 0;
  padding: 0;
}

.trust-bar li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--color-ink-soft);
  font-size: 0.82rem;
  font-weight: 700;
}

.trust-dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--color-accent-strong);
  box-shadow: 0 0 0 0.2rem rgba(169, 214, 56, 0.18);
}

.trust-bar small {
  color: #7d888b;
  font-size: 0.72rem;
}

/* Problem / solution */
.problem-solution-grid {
  display: grid;
  gap: 1rem;
}

.challenge-panel,
.solution-panel {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
}

.challenge-panel {
  border: 1px solid var(--color-line);
  background: var(--color-surface);
}

.solution-panel {
  position: relative;
  overflow: hidden;
  background: var(--color-primary);
  color: #fff;
}

.solution-panel::after {
  content: "";
  position: absolute;
  width: 17rem;
  height: 17rem;
  right: -8rem;
  bottom: -8rem;
  border: 1px solid rgba(200, 239, 100, 0.22);
  border-radius: 50%;
  box-shadow: 0 0 0 3rem rgba(200, 239, 100, 0.04), 0 0 0 6rem rgba(200, 239, 100, 0.035);
}

.solution-panel > * {
  position: relative;
  z-index: 1;
}

.solution-panel p {
  color: rgba(255, 255, 255, 0.72);
}

.solution-panel .text-link {
  color: var(--color-accent);
}

.panel-kicker {
  display: block;
  margin-bottom: 1.2rem;
  color: var(--color-primary-2);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.solution-panel .panel-kicker {
  color: var(--color-accent);
}

.issue-list {
  list-style: none;
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
}

.issue-list li {
  position: relative;
  padding: 0.9rem 0 0.9rem 1.4rem;
  border-bottom: 1px solid var(--color-line);
  color: var(--color-ink-soft);
}

.issue-list li::before {
  content: "";
  position: absolute;
  top: 1.55rem;
  left: 0;
  width: 0.5rem;
  height: 0.5rem;
  border: 1px solid var(--color-primary-2);
  border-radius: 50%;
}

.solution-panel-icon {
  width: 3.7rem;
  height: 3.7rem;
  display: grid;
  place-items: center;
  margin-bottom: 1.4rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.08);
}

.solution-panel-icon svg {
  width: 1.8rem;
  height: 1.8rem;
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 1.6;
}

.solution-points {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-block: 1.6rem;
}

.solution-points span {
  display: grid;
  gap: 0.25rem;
  padding-top: 0.8rem;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.7rem;
}

.solution-points strong {
  color: #fff;
  font-size: 0.92rem;
}

/* Services */
.services-grid {
  display: grid;
  gap: 1rem;
}

.service-card {
  min-width: 0;
  display: grid;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.6) inset;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.service-card:hover {
  transform: translateY(-0.35rem);
  border-color: rgba(18, 59, 61, 0.25);
  box-shadow: var(--shadow-md);
}

.service-card-media {
  min-height: 14rem;
  overflow: hidden;
}

.service-card-media img {
  width: 100%;
  height: 100%;
  min-height: 14rem;
  object-fit: cover;
  transition: transform 700ms ease;
}

.service-card:hover .service-card-media img {
  transform: scale(1.035);
}

.service-card-body {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 1.35rem;
}

.service-number {
  position: absolute;
  top: 1.2rem;
  right: 1.25rem;
  color: #a4adb0;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 800;
}

.service-icon {
  width: 2rem;
  height: 2rem;
  margin-bottom: 1.5rem;
  fill: none;
  stroke: var(--color-primary-2);
  stroke-width: 1.45;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service-card h3 {
  max-width: 15ch;
  margin-bottom: 0.5rem;
}

.service-card p {
  margin-bottom: 1rem;
}

.mini-specs {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0 0 1.25rem;
  padding: 0;
}

.mini-specs li {
  padding: 0.35rem 0.55rem;
  border-radius: var(--radius-pill);
  background: var(--color-surface-tint);
  color: var(--color-primary-2);
  font-size: 0.7rem;
  font-weight: 750;
}

.service-card .text-link {
  margin-top: auto;
}

.service-card--dark {
  background: var(--color-primary);
  color: #fff;
}

.service-card--dark p,
.service-card--dark .service-number {
  color: rgba(255, 255, 255, 0.68);
}

.service-card--dark .service-icon,
.service-card--dark .text-link {
  color: var(--color-accent);
  stroke: var(--color-accent);
}

.service-card--dark .mini-specs li {
  background: rgba(255, 255, 255, 0.09);
  color: rgba(255, 255, 255, 0.82);
}

/* Energy flow */
.energy-system-section {
  overflow: hidden;
}

.energy-system-section::before {
  content: "";
  position: absolute;
  width: 38rem;
  height: 38rem;
  right: -14rem;
  top: -16rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200, 239, 100, 0.12), transparent 70%);
}

.energy-flow {
  position: relative;
  min-height: 54rem;
  display: grid;
  gap: 0.75rem;
}

.energy-flow-lines {
  display: none;
}

.flow-node {
  position: relative;
  z-index: 2;
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--color-line-dark);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.flow-node::after {
  content: "";
  position: absolute;
  left: 2rem;
  bottom: -0.82rem;
  width: 0.12rem;
  height: 0.82rem;
  background: rgba(200, 239, 100, 0.5);
}

.flow-node:last-child::after {
  display: none;
}

.flow-node-icon {
  width: 2.6rem;
  height: 2.6rem;
  display: grid;
  place-items: center;
  margin-bottom: 0.85rem;
  border-radius: 0.7rem;
  background: rgba(200, 239, 100, 0.12);
}

.flow-node-icon svg {
  width: 1.3rem;
  height: 1.3rem;
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.flow-node small {
  display: block;
  margin-bottom: 0.25rem;
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.67rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.flow-node strong {
  display: block;
  color: #fff;
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.flow-node p {
  margin: 0.5rem 0 0;
  font-size: 0.8rem;
  line-height: 1.45;
}

.flow-line {
  fill: none;
  stroke: rgba(200, 239, 100, 0.32);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 7 10;
}

.flow-line--primary {
  stroke: rgba(245, 183, 79, 0.6);
}

.flow-line--return {
  stroke: rgba(142, 196, 209, 0.45);
}

.energy-flow.is-animated .flow-line {
  animation: flow-dash 4s linear infinite;
}

@keyframes flow-dash {
  to { stroke-dashoffset: -34; }
}

/* Benefits */
.benefit-grid {
  display: grid;
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-line);
}

.benefit-card {
  position: relative;
  min-height: 13rem;
  padding: 1.35rem;
  background: var(--color-surface);
}

.benefit-card > span {
  display: block;
  margin-bottom: 2.8rem;
  color: var(--color-primary-2);
  font-size: 0.72rem;
  font-weight: 850;
}

.benefit-card h3 {
  font-size: var(--step-1);
}

.benefit-card p {
  margin-bottom: 0;
  font-size: 0.9rem;
}

/* Stats */
.stats-section {
  padding-block: var(--space-5);
  background: var(--color-solar);
  color: var(--color-primary);
}

.stats-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  margin-bottom: 1.3rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid rgba(18, 59, 61, 0.22);
}

.stats-header p,
.stats-header span {
  margin: 0;
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(18, 59, 61, 0.2);
}

.stats-grid article {
  min-width: 0;
  padding: 1.2rem 0.8rem;
  background: var(--color-solar);
}

.stats-grid strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 8vw, 3rem);
  line-height: 1;
  letter-spacing: -0.05em;
}

.stats-grid span {
  display: block;
  margin-top: 0.45rem;
  font-size: 0.72rem;
  font-weight: 750;
}

/* Forms */
.finder-layout,
.contact-layout,
.funding-layout,
.faq-layout {
  display: grid;
  gap: var(--space-5);
}

.finder-intro {
  align-self: start;
}

.finder-intro h2 {
  max-width: 14ch;
}

.finder-disclaimer,
.notice-box,
.funding-highlight {
  padding: 1rem;
  border-left: 0.24rem solid var(--color-solar);
  background: rgba(255, 255, 255, 0.64);
}

.finder-disclaimer strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--color-primary);
}

.finder-disclaimer p {
  margin: 0;
  font-size: 0.88rem;
}

.solution-finder,
.contact-form {
  position: relative;
  min-width: 0;
  padding: clamp(1.1rem, 3vw, 2rem);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.finder-progress {
  height: 0.22rem;
  margin-bottom: 1.5rem;
  overflow: hidden;
  border-radius: var(--radius-pill);
  background: #e4e8e7;
}

.finder-progress span {
  display: block;
  width: 40%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--color-primary-2), var(--color-accent-strong));
  transition: width var(--transition-base);
}

.form-grid {
  display: grid;
  gap: 1rem;
}

.form-field {
  min-width: 0;
}

.form-field label,
.form-field legend {
  display: block;
  margin-bottom: 0.42rem;
  color: var(--color-ink);
  font-size: 0.84rem;
  font-weight: 800;
}

.form-field label span,
.form-field legend span {
  color: var(--color-ink-soft);
  font-size: 0.74rem;
  font-weight: 600;
}

.form-field input:not([type="checkbox"]),
.form-field select,
.form-field textarea {
  width: 100%;
  min-height: 3.25rem;
  padding: 0.82rem 0.9rem;
  border: 1px solid #c8d0d1;
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--color-ink);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.form-field textarea {
  min-height: 9rem;
  resize: vertical;
}

.form-field input:hover,
.form-field select:hover,
.form-field textarea:hover {
  border-color: #98a8aa;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--color-primary-2);
  box-shadow: 0 0 0 0.22rem rgba(29, 87, 88, 0.13);
}

.form-field.is-invalid input,
.form-field.is-invalid select,
.form-field.is-invalid textarea {
  border-color: var(--color-danger);
  background: #fff9f9;
}

.field-error,
.finder-error {
  min-height: 1.1rem;
  margin: 0.34rem 0 0;
  color: var(--color-danger);
  font-size: 0.76rem;
  font-weight: 700;
}

.finder-error {
  margin-bottom: 0.7rem;
}

.form-field--checkbox label {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-weight: 600;
  line-height: 1.45;
}

.form-field--checkbox input,
.choice-grid input {
  width: 1.15rem;
  height: 1.15rem;
  flex: 0 0 auto;
  margin-top: 0.12rem;
  accent-color: var(--color-primary-2);
}

.checkbox-group {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.choice-grid {
  display: grid;
  gap: 0.55rem;
}

.choice-grid label {
  min-width: 0;
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  margin: 0;
  padding: 0.75rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: #fbfcfb;
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.choice-grid label:has(input:checked) {
  border-color: var(--color-primary-2);
  background: var(--color-primary-3);
}

.choice-grid label span {
  color: var(--color-ink);
  font-size: 0.78rem;
}

.finder-result {
  margin-top: 1.3rem;
  padding: 1.25rem;
  border: 1px solid rgba(18, 59, 61, 0.22);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, #f5f9f7, #eef4f1);
}

.result-label {
  display: inline-block;
  margin-bottom: 0.8rem;
  color: var(--color-primary-2);
  font-size: 0.7rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.finder-result h3 {
  font-size: var(--step-2);
}

.result-columns {
  display: grid;
  gap: 1rem;
  margin-block: 1.2rem;
}

.result-columns > div {
  padding-top: 0.8rem;
  border-top: 1px solid var(--color-line);
}

.result-columns h4 {
  margin-bottom: 0.55rem;
  font-size: 0.9rem;
}

.result-columns ul {
  margin-bottom: 0;
  padding-left: 1rem;
  color: var(--color-ink-soft);
  font-size: 0.8rem;
}

.result-note,
.form-legal {
  font-size: 0.75rem;
}

.form-heading {
  margin-bottom: 1.5rem;
}

.form-heading > span {
  color: var(--color-primary-2);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.form-heading h3 {
  margin: 0.45rem 0;
}

.form-heading p {
  margin: 0;
  font-size: 0.78rem;
}

.field-meta {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.3rem;
  color: var(--color-ink-soft);
  font-size: 0.7rem;
}

.form-success {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  margin-top: 1rem;
  padding: 1rem;
  border: 1px solid rgba(23, 102, 68, 0.26);
  border-radius: var(--radius-sm);
  background: #edf8f1;
}

.form-success svg {
  width: 1.4rem;
  height: 1.4rem;
  flex: 0 0 auto;
  fill: none;
  stroke: var(--color-success);
  stroke-width: 2;
}

.form-success strong {
  color: var(--color-success);
}

.form-success p {
  margin: 0.25rem 0 0;
  font-size: 0.84rem;
}

/* Feature sections */
.feature-layout,
.about-layout,
.business-layout,
.quality-layout,
.cta-layout {
  display: grid;
  gap: var(--space-5);
}

.feature-media,
.about-media {
  position: relative;
  min-width: 0;
}

.feature-media > img,
.about-media > img {
  width: 100%;
  aspect-ratio: 4 / 4.2;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.media-caption {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  display: grid;
  gap: 0.2rem;
  padding: 0.85rem;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: var(--radius-sm);
  background: rgba(18, 59, 61, 0.83);
  color: #fff;
  backdrop-filter: blur(10px);
}

.media-caption span {
  color: var(--color-accent);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.media-caption strong {
  font-size: 0.86rem;
}

.feature-content {
  align-self: center;
}

.feature-content > p:not(.eyebrow) {
  max-width: 40rem;
}

.feature-accordion {
  margin-block: 1.4rem;
  border-top: 1px solid var(--color-line);
}

.feature-accordion details {
  border-bottom: 1px solid var(--color-line);
}

.feature-accordion summary {
  min-height: 3.7rem;
  display: flex;
  align-items: center;
  cursor: pointer;
  color: var(--color-ink);
  font-weight: 800;
}

.feature-accordion summary::marker {
  color: var(--color-primary-2);
}

.feature-accordion details p {
  padding: 0 0 1rem 1.15rem;
  margin: 0;
  font-size: 0.88rem;
}

.info-card-row {
  display: grid;
  gap: 1px;
  margin-top: var(--space-5);
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-line);
}

.info-card-row article {
  padding: 1.2rem;
  background: var(--color-surface);
}

.info-card-row svg {
  width: 1.7rem;
  height: 1.7rem;
  margin-bottom: 1.1rem;
  fill: none;
  stroke: var(--color-primary-2);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.info-card-row h3 {
  font-size: 1rem;
}

.info-card-row p {
  margin-bottom: 0;
  font-size: 0.8rem;
}

.check-list {
  list-style: none;
  display: grid;
  gap: 0.85rem;
  margin-block: 1.4rem;
  padding: 0;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  color: var(--color-ink-soft);
  font-size: 0.9rem;
}

.check-list strong {
  color: var(--color-ink);
}

.notice-box {
  margin-bottom: 1.4rem;
  color: var(--color-primary);
  font-size: 0.87rem;
  font-weight: 750;
}

.technical-card {
  position: absolute;
  min-width: 9rem;
  display: grid;
  padding: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(10px);
}

.technical-card span {
  color: var(--color-primary-2);
  font-size: 0.65rem;
  font-weight: 850;
}

.technical-card strong {
  color: var(--color-ink);
  font-size: 0.9rem;
}

.technical-card small {
  color: var(--color-ink-soft);
  font-size: 0.67rem;
}

.technical-card--one { left: 0.7rem; bottom: 1rem; }
.technical-card--two { right: 0.7rem; bottom: 4.8rem; }
.technical-card--three { right: 0.7rem; top: 1rem; }

/* Business */
.business-section {
  position: relative;
  overflow: hidden;
}

.business-section::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 4rem 4rem;
  pointer-events: none;
}

.business-layout {
  position: relative;
  z-index: 1;
}

.business-content h2 {
  max-width: 14ch;
}

.business-benefit {
  margin-block: 1.5rem;
  padding-left: 1rem;
  border-left: 0.2rem solid var(--color-accent);
}

.business-benefit span {
  color: var(--color-accent);
  font-size: 0.7rem;
  font-weight: 850;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.business-benefit p {
  margin: 0.45rem 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: var(--step-1);
}

.business-services ul {
  list-style: none;
  display: grid;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--color-line-dark);
}

.business-services li {
  display: grid;
  grid-template-columns: 2.2rem 1fr;
  gap: 0.7rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--color-line-dark);
  color: rgba(255, 255, 255, 0.84);
  font-size: 0.9rem;
}

.business-services li span {
  color: var(--color-accent);
  font-size: 0.68rem;
  font-weight: 800;
}

/* Process */
.process-timeline {
  position: relative;
  list-style: none;
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
}

.process-timeline::before {
  content: "";
  position: absolute;
  top: 1.8rem;
  bottom: 1.8rem;
  left: 1.5rem;
  width: 1px;
  background: var(--color-line);
}

.process-step {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1rem;
  align-items: start;
}

.process-number {
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--color-line);
  border-radius: 50%;
  background: var(--color-bg);
  color: var(--color-primary-2);
  font-size: 0.68rem;
  font-weight: 850;
}

.process-step > div {
  padding: 0.25rem 0 1.4rem;
}

.process-step h3 {
  margin-bottom: 0.4rem;
  font-size: var(--step-1);
}

.process-step p {
  margin: 0;
  font-size: 0.88rem;
}

/* Projects */
.project-filter {
  display: flex;
  gap: 0.45rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.35rem;
  overflow-x: auto;
  scrollbar-width: thin;
}

.project-filter button {
  min-height: 2.7rem;
  flex: 0 0 auto;
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--color-ink-soft);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 750;
}

.project-filter button.is-active,
.project-filter button:hover {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #fff;
}

.project-grid {
  display: grid;
  gap: 1rem;
}

.project-card {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.project-card.is-filtered-out {
  display: none;
}

.project-image {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 700ms ease;
}

.project-card:hover .project-image img {
  transform: scale(1.035);
}

.project-image > span {
  position: absolute;
  top: 0.8rem;
  left: 0.8rem;
  padding: 0.35rem 0.55rem;
  border-radius: var(--radius-pill);
  background: rgba(18, 59, 61, 0.84);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 800;
}

.project-content {
  padding: 1.25rem;
}

.project-type {
  margin-bottom: 0.7rem;
  color: var(--color-primary-2);
  font-size: 0.7rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-content h3 {
  font-size: var(--step-2);
}

.project-content p:not(.project-type) {
  margin-bottom: 0.65rem;
  font-size: 0.84rem;
}

.project-content p strong {
  color: var(--color-ink);
}

/* About and team */
.about-content .lead {
  color: var(--color-ink);
  font-size: var(--step-1);
  font-weight: 700;
}

.about-values {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-block: 1.4rem;
}

.about-values span {
  padding: 0.5rem 0.7rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.55);
  color: var(--color-primary);
  font-size: 0.72rem;
  font-weight: 750;
}

.about-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: -2.8rem 0 0 1rem;
  position: relative;
  z-index: 2;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--color-line);
  box-shadow: var(--shadow-md);
}

.about-facts div {
  min-width: 0;
  padding: 0.85rem;
  background: var(--color-surface);
}

.about-facts strong,
.about-facts span {
  display: block;
}

.about-facts strong {
  color: var(--color-primary);
  font-family: var(--font-display);
  font-size: 1.15rem;
}

.about-facts span {
  margin-top: 0.25rem;
  color: var(--color-ink-soft);
  font-size: 0.62rem;
}

.team-grid {
  display: grid;
  gap: 1rem;
}

.team-card {
  min-width: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.team-card img {
  width: 100%;
  aspect-ratio: 4 / 4.4;
  object-fit: cover;
  object-position: center 20%;
  filter: saturate(0.82) contrast(1.02);
}

.team-card > div {
  padding: 1.15rem;
}

.team-card p {
  margin-bottom: 0.35rem;
  color: var(--color-primary-2);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.team-card h3 {
  font-size: var(--step-1);
}

.team-card blockquote {
  margin-bottom: 1rem;
  color: var(--color-ink-soft);
  font-size: 0.83rem;
  font-style: italic;
}

.team-card a {
  color: var(--color-primary);
  font-size: 0.78rem;
  font-weight: 800;
}

/* Testimonials */
.testimonials-section {
  background: var(--color-surface);
}

.testimonial-grid {
  display: grid;
  gap: 1rem;
}

.testimonial-card {
  min-width: 0;
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 1.35rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: #fbfcfa;
}

.stars {
  margin-bottom: 1.4rem;
  color: #d58d13;
  letter-spacing: 0.12em;
}

.testimonial-card blockquote {
  flex: 1;
  margin-bottom: 1.5rem;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 650;
  line-height: 1.35;
  letter-spacing: -0.02em;
}

.testimonial-card figcaption {
  display: grid;
  gap: 0.15rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--color-line);
}

.testimonial-card figcaption strong {
  color: var(--color-primary);
  font-size: 0.84rem;
}

.testimonial-card figcaption span {
  color: var(--color-ink-soft);
  font-size: 0.72rem;
}

/* Funding and quality */
.funding-content {
  align-self: start;
}

.funding-highlight {
  margin-top: 1.25rem;
  color: var(--color-primary);
  font-weight: 800;
}

.quality-section {
  padding-block: var(--space-6);
  background: var(--color-primary-2);
  color: #fff;
}

.quality-quote > span {
  display: block;
  margin-bottom: 1rem;
  color: var(--color-accent);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.quality-quote blockquote {
  margin-bottom: 0;
  font-family: var(--font-display);
  font-size: var(--step-3);
  font-weight: 650;
  line-height: 1.2;
  letter-spacing: -0.035em;
}

.quality-list h2 {
  font-size: var(--step-2);
}

.quality-list > div {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.quality-list span {
  padding: 0.5rem 0.7rem;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.72rem;
  font-weight: 700;
}

/* FAQ */
.faq-list {
  border-top: 1px solid var(--color-line);
}

.faq-list details {
  border-bottom: 1px solid var(--color-line);
}

.faq-list summary {
  min-height: 4.4rem;
  display: grid;
  grid-template-columns: 1fr 1.4rem;
  gap: 1rem;
  align-items: center;
  cursor: pointer;
  color: var(--color-ink);
  font-weight: 800;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary span {
  position: relative;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  background: var(--color-primary-3);
}

.faq-list summary span::before,
.faq-list summary span::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0.6rem;
  height: 0.1rem;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  transform: translate(-50%, -50%);
  transition: transform var(--transition-fast);
}

.faq-list summary span::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-list details[open] summary span::after {
  transform: translate(-50%, -50%) rotate(0);
}

.faq-list details > div {
  padding: 0 2.2rem 1.2rem 0;
}

.faq-list details p {
  margin: 0;
  font-size: 0.9rem;
}

/* CTA */
.cta-section {
  position: relative;
  overflow: hidden;
  padding-block: var(--space-6);
  background: #0c2d2f;
  color: #fff;
}

.cta-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.3;
  background:
    radial-gradient(circle at 80% 20%, rgba(200, 239, 100, 0.32), transparent 18rem),
    linear-gradient(120deg, transparent 45%, rgba(255, 255, 255, 0.05) 45%, rgba(255, 255, 255, 0.05) 46%, transparent 46%);
  background-size: auto, 5rem 5rem;
}

.cta-layout {
  position: relative;
  z-index: 1;
  align-items: center;
}

.cta-section .eyebrow {
  color: var(--color-accent);
}

.cta-section h2 {
  max-width: 14ch;
}

.cta-section p {
  max-width: 43rem;
  color: rgba(255, 255, 255, 0.7);
}

.cta-actions {
  display: grid;
  gap: 0.75rem;
}

.cta-actions small {
  color: rgba(255, 255, 255, 0.52);
  font-size: 0.7rem;
  text-align: center;
}

/* Contact */
.contact-section {
  background: #f7f7f3;
}

.contact-info {
  align-self: start;
}

.contact-info > h2 {
  max-width: 13ch;
}

.contact-cards {
  display: grid;
  gap: 0.6rem;
  margin-block: 1.5rem;
}

.contact-cards > * {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.9rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.68);
  text-decoration: none;
}

.contact-cards svg {
  width: 1.4rem;
  height: 1.4rem;
  flex: 0 0 auto;
  fill: none;
  stroke: var(--color-primary-2);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.contact-cards span {
  min-width: 0;
  overflow-wrap: anywhere;
  color: var(--color-ink);
  font-size: 0.8rem;
  font-weight: 750;
}

.contact-cards small {
  display: block;
  margin-bottom: 0.2rem;
  color: var(--color-ink-soft);
  font-size: 0.65rem;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.contact-details {
  display: grid;
  gap: 0;
  margin: 0;
  border-top: 1px solid var(--color-line);
}

.contact-details > div {
  display: grid;
  grid-template-columns: minmax(7rem, 0.7fr) 1fr;
  gap: 0.8rem;
  padding-block: 0.8rem;
  border-bottom: 1px solid var(--color-line);
}

.contact-details dt {
  color: var(--color-ink);
  font-size: 0.76rem;
  font-weight: 800;
}

.contact-details dd {
  margin: 0;
  color: var(--color-ink-soft);
  font-size: 0.78rem;
}

/* Footer */
.site-footer {
  padding-block: var(--space-6) 1.5rem;
  background: #091f21;
  color: #fff;
}

.footer-main {
  display: grid;
  gap: 2rem;
  padding-bottom: var(--space-5);
}

.brand--footer {
  color: #fff;
}

.brand--footer .brand-copy small {
  color: rgba(255, 255, 255, 0.56);
}

.footer-brand > p {
  max-width: 28rem;
  margin: 1rem 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.82rem;
}

.footer-brand .demo-note {
  color: rgba(255, 255, 255, 0.42);
}

.social-links {
  display: flex;
  gap: 0.6rem;
}

.social-links a {
  padding: 0.5rem 0.7rem;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.72rem;
  font-weight: 750;
  text-decoration: none;
}

.footer-column h2 {
  margin-bottom: 1rem;
  color: rgba(255, 255, 255, 0.56);
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.footer-column ul {
  list-style: none;
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
}

.footer-column a,
.footer-column address,
.footer-column p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.8rem;
  font-style: normal;
  text-decoration: none;
}

.footer-column a:hover {
  color: #fff;
}

.footer-contact {
  display: grid;
  align-content: start;
  gap: 0.45rem;
}

.footer-contact h2 {
  margin-bottom: 0.6rem;
}

.footer-contact p {
  margin: 0.5rem 0 0;
}

.footer-bottom {
  display: grid;
  gap: 0.8rem;
  padding-block: 1.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.11);
}

.footer-bottom p {
  margin: 0;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.72rem;
}

.footer-bottom nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1rem;
}

.footer-bottom a,
.footer-bottom button {
  padding: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.62);
  cursor: pointer;
  font-size: 0.72rem;
  text-decoration: none;
}

.footer-disclaimer {
  padding-top: 1.1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-disclaimer p {
  max-width: 78rem;
  margin: 0;
  color: rgba(255, 255, 255, 0.36);
  font-size: 0.67rem;
}

.cookie-toast {
  position: fixed;
  z-index: 2000;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  max-width: 27rem;
  padding: 1rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: #fff;
  box-shadow: var(--shadow-lg);
}

.cookie-toast p {
  margin: 0 0 0.7rem;
  font-size: 0.8rem;
}

.cookie-toast button {
  padding: 0.5rem 0.7rem;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #fff;
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 800;
}

/* Reveal animation */
.js .reveal {
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
  transition-delay: var(--reveal-delay, 0ms);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Small device hardening */
@media (max-width: 23.4rem) {
  .container {
    width: min(100% - 1.25rem, var(--container));
  }

  .hero h1 {
    font-size: clamp(2.35rem, 13.5vw, 3rem);
  }

  .hero-system-label {
    padding: 0.55rem;
  }

  .hero-system-label span {
    font-size: 0.68rem;
  }

  .hero-metrics div {
    padding: 0.85rem 0.65rem;
  }

  .solution-points,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .technical-card {
    min-width: 7.7rem;
    padding: 0.55rem;
  }

  .contact-details > div {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }
}

/* Tablet */
@media (min-width: 40rem) {
  .container {
    width: min(100% - 3rem, var(--container));
  }

  .button-group .button {
    width: auto;
  }

  .hero-trust {
    grid-template-columns: repeat(3, max-content);
  }

  .hero-metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .problem-solution-grid,
  .finder-layout,
  .funding-layout,
  .quality-layout,
  .cta-layout {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .services-grid,
  .benefit-grid,
  .project-grid,
  .team-grid,
  .testimonial-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .service-card--featured {
    grid-column: 1 / -1;
    grid-template-columns: 1.2fr 1fr;
  }

  .service-card--featured .service-card-media,
  .service-card--featured .service-card-media img {
    min-height: 100%;
  }

  .stats-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .form-grid,
  .form-grid--finder {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .form-field--full {
    grid-column: 1 / -1;
  }

  .choice-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .result-columns {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .feature-layout,
  .about-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }

  .feature-layout--reverse .feature-content {
    order: -1;
  }

  .info-card-row {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .technical-card--one { left: -1rem; bottom: 1.5rem; }
  .technical-card--two { right: -1rem; bottom: 5.4rem; }
  .technical-card--three { right: -1rem; top: 1.5rem; }

  .business-layout,
  .contact-layout,
  .faq-layout {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  }

  .business-services ul {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .business-services li:nth-child(odd) {
    padding-right: 1rem;
  }

  .business-services li:nth-child(even) {
    padding-left: 1rem;
    border-left: 1px solid var(--color-line-dark);
  }

  .section-heading--split {
    grid-template-columns: minmax(0, 1.2fr) minmax(16rem, 0.6fr);
    align-items: end;
  }

  .footer-main {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-bottom {
    grid-template-columns: 1fr auto;
    align-items: center;
  }

  .cookie-toast {
    left: auto;
  }
}

/* Desktop navigation and layouts */
@media (min-width: 64rem) {
  :root {
    --header-height: 5.4rem;
  }

  .site-header.is-scrolled {
    height: 4.7rem;
  }

  .nav-toggle {
    display: none;
  }

  .main-navigation,
  .js .main-navigation {
    position: static;
    width: auto;
    max-height: none;
    display: flex;
    align-items: center;
    gap: 1.2rem;
    overflow: visible;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
    visibility: visible;
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  .main-navigation ul {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 0;
  }

  .main-navigation li {
    border: 0;
  }

  .main-navigation li a {
    position: relative;
    min-height: 2.75rem;
    font-size: 0.74rem;
  }

  .main-navigation li a::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: 0.3rem;
    left: 0;
    height: 0.12rem;
    border-radius: var(--radius-pill);
    background: var(--color-primary-2);
    transform: scaleX(0);
    transition: transform var(--transition-fast);
  }

  .main-navigation li a:hover::after,
  .main-navigation li a.is-active::after {
    transform: scaleX(1);
  }

  .nav-cta {
    width: auto;
  }

  .hero-layout {
    grid-template-columns: minmax(0, 1.08fr) minmax(28rem, 0.92fr);
    align-items: center;
    gap: clamp(3rem, 6vw, 7rem);
  }

  .hero-content {
    padding-top: 2rem;
  }

  .hero-photo-wrap {
    aspect-ratio: 4 / 4.65;
  }

  .trust-bar-inner {
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 1.5rem;
  }

  .trust-bar ul {
    justify-content: center;
  }

  .problem-solution-grid {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: 1.2rem;
  }

  .challenge-panel,
  .solution-panel {
    padding: var(--space-5);
  }

  .services-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .service-card {
    grid-column: span 4;
  }

  .service-card--featured {
    grid-column: span 8;
    grid-template-columns: 1.15fr 0.85fr;
  }

  .service-card--image {
    grid-column: span 8;
    grid-template-columns: 1fr 1fr;
  }

  .service-card--image .service-card-media {
    order: 2;
  }

  .service-card--dark {
    grid-column: span 4;
  }

  .energy-flow {
    min-height: 36rem;
    display: block;
  }

  .energy-flow-lines {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
  }

  .flow-node {
    position: absolute;
    width: 11.6rem;
  }

  .flow-node::after {
    display: none;
  }

  .flow-node--solar { top: 2%; left: 2%; }
  .flow-node--home { top: 34%; left: 35%; width: 13rem; }
  .flow-node--storage { top: 1%; right: 20%; }
  .flow-node--heat { bottom: 2%; left: 3%; }
  .flow-node--car { bottom: 1%; left: 43%; }
  .flow-node--manager { top: 27%; right: 1%; width: 12.5rem; }
  .flow-node--grid { right: 9%; bottom: 1%; }

  .benefit-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .stats-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .finder-layout {
    grid-template-columns: minmax(20rem, 0.72fr) minmax(0, 1.28fr);
    align-items: start;
  }

  .finder-intro {
    position: sticky;
    top: calc(var(--header-height) + 2rem);
  }

  .feature-layout {
    gap: clamp(4rem, 7vw, 8rem);
  }

  .feature-media > img,
  .about-media > img {
    aspect-ratio: 4 / 4.4;
  }

  .business-layout {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: clamp(4rem, 8vw, 9rem);
  }

  .process-timeline {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    border-top: 1px solid var(--color-line);
  }

  .process-timeline::before {
    display: none;
  }

  .process-step {
    min-height: 15rem;
    display: block;
    padding: 1.4rem 1.3rem 0;
    border-right: 1px solid var(--color-line);
    border-bottom: 1px solid var(--color-line);
  }

  .process-step:nth-child(3n) {
    border-right: 0;
  }

  .process-number {
    margin-bottom: 2rem;
  }

  .process-step > div {
    padding: 0;
  }

  .project-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .project-card {
    display: grid;
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  }

  .project-image {
    aspect-ratio: auto;
    min-height: 100%;
  }

  .team-grid,
  .testimonial-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .funding-layout {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: clamp(4rem, 8vw, 8rem);
  }

  .quality-layout {
    grid-template-columns: 1.25fr 0.75fr;
    gap: clamp(4rem, 9vw, 10rem);
    align-items: end;
  }

  .faq-layout,
  .contact-layout {
    grid-template-columns: minmax(20rem, 0.7fr) minmax(0, 1.3fr);
    gap: clamp(4rem, 7vw, 7rem);
  }

  .faq-layout .section-heading,
  .contact-info {
    position: sticky;
    top: calc(var(--header-height) + 2rem);
  }

  .cta-layout {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 4rem;
  }

  .cta-actions {
    min-width: 19rem;
  }

  .footer-main {
    grid-template-columns: minmax(18rem, 1.8fr) repeat(4, minmax(8rem, 1fr));
    gap: 2rem;
  }

  .footer-brand {
    grid-column: auto;
  }
}

/* Wide screens */
@media (min-width: 90rem) {
  :root {
    --container: 84rem;
  }

  .hero-layout {
    min-height: calc(100dvh - var(--header-height) - 5rem);
  }

  .hero-photo-wrap {
    max-height: 47rem;
  }

  .service-card-body {
    padding: 1.7rem;
  }

  .benefit-card {
    min-height: 15rem;
    padding: 1.7rem;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }
}