/* Variant: Dynamic (DRAFT) — Klaus's teal + orange proposal.
   Neutrals (bg/paper/surface/border/ink) are UNCHANGED from Coreon Brand
   Guidelines v1.0 (see Desktop PDF) — only the accent family changes:
   green -> teal, plus a new deliberately-scarce orange "edge" accent.
   All teal/orange hex values are ESTIMATED from Klaus's reference photos —
   not yet confirmed. See the design document for details. */
:root {
  --bg-dark: #0B140F;
  --bg-dark-2: #16281C;
  --border-dark: #2A3E30;

  --paper: #F1EFE7;
  --surface: #FFFFFF;
  --border: #E1DDCF;

  --ink: #16241D;
  --ink-muted: #57685D;
  --ink-on-dark: #EDF5EF;
  --ink-on-dark-muted: #9FC7CC;

  --accent: #1CAABE;
  --accent-2: #4FC9B8;
  --accent-bright: #82D8DE;
  --accent-ink: #06232A;

  --accent-orange: #FF6B35;
  --accent-orange-bright: #FFAE90;
  --accent-orange-ink: #3D1A0A;

  --shadow: 0 1px 2px rgba(11, 20, 15, 0.06), 0 16px 36px -18px rgba(11, 20, 15, 0.24);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: "Work Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.75rem;
}

h1, h2, h3 {
  font-family: "Poppins", "Work Sans", sans-serif;
  color: inherit;
  text-wrap: balance;
  margin: 0 0 0.75rem;
  font-weight: 700;
}

p {
  margin: 0 0 1rem;
}

a {
  color: var(--accent);
}

.mono {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
}

.eyebrow {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
}

.hl {
  color: var(--accent);
}

.hl-dark {
  color: var(--accent-bright);
}

/* Brand */

.brand-block {
  display: inline-flex;
  align-items: flex-end;
  gap: 8px;
}

.brand {
  display: inline-block;
  font-family: "Poppins", sans-serif;
  font-weight: 700;
  font-size: clamp(2rem, 3vw + 1rem, 2.75rem);
  line-height: 1;
  color: var(--accent-orange);
  letter-spacing: -0.01em;
  text-decoration: none;
}

.brand .o {
  color: var(--ink-on-dark);
}

.brand-mark {
  width: 28px;
  height: 21px;
  margin-bottom: 10px;
  flex: none;
}

.brand-mark polygon {
  fill: var(--accent-orange);
}

/* Buttons */

.btn {
  display: inline-block;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn-ghost {
  color: var(--ink-on-dark);
  border-color: var(--border-dark);
  background: transparent;
}

.btn-ghost:hover {
  border-color: var(--accent-bright);
  color: var(--accent-bright);
}

.btn-primary {
  background: var(--accent-orange);
  color: var(--accent-orange-ink);
  width: 100%;
}

.btn-primary:hover {
  background: var(--accent-orange-bright);
  transform: translateY(-1px);
}

/* Language switch */

.lang-switch {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--border-dark);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
}

.lang-btn {
  border: none;
  background: transparent;
  color: var(--ink-on-dark-muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 0.38rem 0.65rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.lang-btn:hover:not(.is-active) {
  color: var(--ink-on-dark);
}

.lang-btn.is-active {
  background: var(--accent);
  color: var(--accent-ink);
}

/* Sticky header + step rail */

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 100;
  background: transparent;
  pointer-events: none;
}

.scroll-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--bg-dark);
  border-bottom: 1px solid var(--border-dark);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.step-rail {
  background: var(--paper);
  border-top: 1px solid var(--border-dark);
}

.step-rail-inner {
  display: flex;
  justify-content: space-between;
  gap: 1.75rem;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.step-rail-inner::-webkit-scrollbar {
  display: none;
}

.step-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
  padding: 0.65rem 0.1rem;
  color: var(--ink-muted);
  text-decoration: none;
  font-family: "Work Sans", sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.step-link:hover {
  color: var(--ink);
}

.step-link.is-active {
  color: var(--ink);
  border-color: var(--accent);
}

/* Background graphics */

/* Hero */

.hero {
  position: relative;
  background: var(--bg-dark);
  color: var(--ink-on-dark);
  overflow: hidden;
  padding-top: 3rem;
  padding-bottom: 5.5rem;
}

.hero-photo {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 44%;
  overflow: hidden;
  border-radius: 120px 0 0 120px;
}

.hero-photo img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  filter: grayscale(0.1) saturate(1.1) brightness(1.05) contrast(0.98);
}

.hero-photo::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-orange) 100%);
  mix-blend-mode: color;
  opacity: 0.22;
}

.hero-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(11, 20, 15, 0.35) 0%, transparent 26%),
    linear-gradient(90deg, var(--bg-dark) 0%, transparent 20%);
}

.hero .wrap {
  position: relative;
  z-index: 1;
}

.hero-wave {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  width: 100%;
  height: 70px;
  z-index: 2;
}

.hero-copy {
  max-width: 620px;
  padding-top: 1rem;
}

.hero h1 {
  font-size: clamp(2rem, 3vw + 1rem, 2.75rem);
  line-height: 1.18;
  letter-spacing: -0.01em;
}

.hero .divider {
  width: 48px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
  margin: 1.25rem 0 1.5rem;
}

.hero p {
  color: var(--ink-on-dark-muted);
  font-size: 1rem;
  max-width: 46ch;
}

.hero-cta {
  margin-top: 1.5rem;
  color: var(--accent-bright);
  font-weight: 700;
  font-size: 0.95rem;
  line-height: 1.6;
  text-transform: uppercase;
  letter-spacing: 0.01em;
}

.leaf-card {
  position: relative;
  z-index: 1;
  margin-top: 3rem;
  max-width: 420px;
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  background: rgba(7, 26, 43,0.92);
  border: 1px solid var(--border-dark);
  border-radius: 26px;
  padding: 1.1rem 1.3rem;
  backdrop-filter: blur(6px);
}

.leaf-card svg {
  flex: none;
  width: 26px;
  height: 26px;
  margin-top: 0.15rem;
  color: var(--accent);
  filter: drop-shadow(0 0 0 transparent);
  animation: energy-glow 3.2s ease-in-out infinite;
}

.leaf-card p {
  margin: 0;
  font-weight: 700;
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--ink-on-dark);
  text-transform: uppercase;
  letter-spacing: 0.01em;
}

.leaf-card .hl-dark {
  display: block;
}

/* Section shells */

section {
  padding: 4.5rem 0;
}

.section-head {
  text-align: center;
  margin-bottom: 2.75rem;
  position: relative;
  z-index: 1;
}

.section-head .eyebrow {
  font-size: 1.05rem;
  letter-spacing: 0.06em;
}

.section-head h2 {
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.section-head .divider {
  width: 40px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
  margin: 0.85rem auto 0;
}

/* How it works */

.how {
  background: var(--paper);
}

.how-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.how-col {
  text-align: center;
  padding: 0 1.75rem;
  border-left: 1px solid var(--border);
}

.how-col:first-child {
  border-left: none;
}

.how-col svg {
  display: block;
  width: 32px;
  height: 32px;
  margin: 0 auto 1.1rem;
  color: var(--accent);
}

.how-col svg.icon-eye {
  transform: translateY(-4px);
}

.how-col svg.icon-trend {
  transform: translateY(-6px);
}

.how-col h3 {
  font-size: 1.02rem;
  margin-bottom: 0.6rem;
}

.how-col p {
  color: var(--ink-muted);
  font-size: 0.9rem;
  margin: 0 0 1rem;
}

.check {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink);
}

.check svg {
  width: 16px;
  height: 16px;
  margin: 0;
  flex: none;
  color: var(--accent-2);
}

/* Illustrative "before/after" energy chart */

.chart-card {
  position: relative;
  margin-top: 3.5rem;
  padding: 2rem 2.25rem 1.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.chart-card-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.chart-card-head h3 {
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}

.chart-card-head p {
  color: var(--ink-muted);
  font-size: 0.88rem;
  margin: 0;
  max-width: 46ch;
}

.chart-svg {
  width: 100%;
  height: auto;
  display: block;
  overflow: visible;
}

.chart-axis {
  stroke: var(--border);
  stroke-width: 1;
}

.chart-axis-label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  fill: var(--ink-muted);
}

.chart-line {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.chart-line-before {
  stroke: var(--ink-muted);
  stroke-width: 2;
  stroke-dasharray: 5 5;
  opacity: 0.75;
}

.chart-line-after {
  stroke: var(--accent);
  stroke-width: 3;
}

.chart-legend {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-top: 1.25rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--border);
}

.chart-brand-mark,
.journey-brand-mark,
.approach-brand-mark,
.faq-brand-mark,
.contact-brand-mark {
  position: absolute;
  bottom: -34px;
  right: -288px;
  display: flex;
  align-items: flex-end;
  gap: 6px;
}

.chart-brand-mark-o {
  font-family: "Poppins", sans-serif;
  font-weight: 800;
  font-size: 96px;
  line-height: 0.8;
  color: var(--ink);
}

.contact-brand-mark-o {
  font-family: "Poppins", sans-serif;
  font-weight: 800;
  font-size: 96px;
  line-height: 0.8;
  color: var(--ink-on-dark);
}

.chart-brand-mark-triangle {
  width: 96px;
  height: 72px;
  flex: none;
}

.chart-brand-mark-triangle polygon {
  fill: var(--accent-orange);
}

.chart-legend-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--ink-muted);
}

.chart-swatch {
  width: 16px;
  height: 3px;
  border-radius: 2px;
  flex: none;
}

.chart-swatch-before {
  background: var(--ink-muted);
}

.chart-swatch-after {
  background: var(--accent);
  height: 4px;
}

.chart-savings-badge {
  flex: none;
  text-align: right;
}

.chart-savings-value {
  display: block;
  font-family: "Poppins", sans-serif;
  font-weight: 800;
  font-size: 1.9rem;
  line-height: 1;
  color: var(--accent);
}

.chart-savings-badge span:last-child {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.chart-svg-acc {
  height: auto;
}

/* FAQ CTA banner */

.faq-cta {
  position: relative;
  overflow: hidden;
  background: var(--bg-dark);
  color: var(--ink-on-dark);
  padding: 3rem 0 5.5rem;
  text-align: center;
}

.faq-cta .wrap {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.faq-cta p {
  margin: 0;
  font-size: 1.05rem;
}

.faq-cta-wave {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  width: 100%;
  height: 70px;
  z-index: 2;
}

/* FAQ */

.faq {
  background: var(--paper);
}

.faq > .wrap {
  position: relative;
}

.faq-list {
  max-width: 760px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item:first-child {
  border-top: 1px solid var(--border);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 0.25rem;
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  font-size: 1.02rem;
  color: var(--ink);
}

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

.faq-item summary::after {
  content: "+";
  flex: none;
  font-size: 1.5rem;
  line-height: 1;
  font-weight: 400;
  color: var(--accent);
  transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item p {
  margin: 0 0 1.4rem;
  padding-right: 2.25rem;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

/* Journey (the red thread) */

.journey {
  background: var(--surface);
  position: relative;
  overflow: hidden;
}

.journey > .wrap {
  position: relative;
}

.journey-wave {
  position: absolute;
  left: 0;
  right: 0;
  top: -1px;
  width: 100%;
  height: 70px;
  z-index: 2;
}

.journey-steps {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 3.5rem;
  padding-left: 3rem;
}

.journey-steps::before {
  content: "";
  position: absolute;
  left: 0.9rem;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  opacity: 0.5;
}

.journey-steps::after {
  content: "";
  position: absolute;
  left: calc(0.9rem + 1px);
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  transform: translateX(-50%);
  background: var(--accent-bright);
  box-shadow: 0 0 8px 2px var(--accent-bright);
  animation: energy-pulse 4.5s ease-in-out infinite;
}

.journey-step {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 2.5rem;
  align-items: center;
}

.journey-step .journey-media { order: 1; }
.journey-step .journey-copy { order: 2; }
.journey-step.is-reverse .journey-media { order: 2; }
.journey-step.is-reverse .journey-copy { order: 1; }

.journey-num {
  position: absolute;
  left: -3rem;
  top: 50%;
  transform: translateY(-50%);
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 50%;
  background: var(--bg-dark);
  color: var(--accent-orange-bright);
  font-family: "IBM Plex Mono", monospace;
  font-weight: 700;
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--accent-orange);
  z-index: 1;
}

.journey-media img {
  display: block;
  width: 100%;
  height: 280px;
  object-fit: cover;
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.journey-copy h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.journey-copy p {
  color: var(--ink-muted);
  font-size: 0.95rem;
}

.journey-tag {
  display: inline-block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-ink);
  background: var(--paper);
  background: color-mix(in srgb, var(--accent-2) 28%, var(--surface));
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
}

/* Stats */

.stats {
  background:
    radial-gradient(680px 420px at 88% 0%, color-mix(in srgb, var(--accent-orange) 40%, transparent) 0%, transparent 72%),
    var(--bg-dark);
  color: var(--ink-on-dark);
}

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

.stat {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  padding: 0 2rem;
  border-left: 1px solid var(--border-dark);
}

.stat:first-child {
  border-left: none;
  padding-left: 0;
}

.stat svg {
  flex: none;
  width: 52px;
  height: 52px;
  color: var(--accent-bright);
}

.stat-label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-on-dark-muted);
  margin-bottom: 0.3rem;
}

.stat-value {
  font-family: "Poppins", sans-serif;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent-bright);
  line-height: 1.1;
}

.stat-sub {
  font-size: 0.85rem;
  color: var(--ink-on-dark-muted);
}

/* Approach */

.approach {
  position: relative;
  overflow: hidden;
  background: var(--paper);
}

.approach-wave {
  position: absolute;
  left: 0;
  right: 0;
  top: -1px;
  width: 100%;
  height: 70px;
  z-index: 2;
}

.approach-grid {
  position: relative;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3.5rem;
  align-items: start;
}

.approach h2 {
  font-size: 1.75rem;
  line-height: 1.25;
}

.approach .lead {
  color: var(--ink-muted);
}

.approach-list {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
}

.approach-row {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.approach-row svg {
  flex: none;
  width: 22px;
  height: 22px;
  margin-top: 0.2rem;
  color: var(--accent);
}

.approach-row h3 {
  font-size: 1rem;
  margin-bottom: 0.3rem;
}

.approach-row p {
  color: var(--ink-muted);
  font-size: 0.9rem;
  margin: 0;
}

/* Contact */

.contact {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(620px 380px at 12% 100%, color-mix(in srgb, var(--accent-orange) 26%, transparent) 0%, transparent 72%),
    var(--bg-dark);
  color: var(--ink-on-dark);
}

.contact-wave {
  position: absolute;
  left: 0;
  right: 0;
  top: -1px;
  width: 100%;
  height: 70px;
  z-index: 2;
}

.contact-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
}

.contact h2 {
  font-size: 1.9rem;
  line-height: 1.25;
}

.contact-intro p {
  color: var(--ink-on-dark-muted);
}

.contact-list {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.contact-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--ink-on-dark);
}

.contact-list svg {
  flex: none;
  width: 19px;
  height: 19px;
  color: var(--accent-2);
}

.contact-list a {
  color: var(--ink-on-dark);
}

.copy-btn {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  padding: 0;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--ink-on-dark-muted);
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.copy-btn:hover {
  background: var(--border-dark);
  color: var(--ink-on-dark);
}

.copy-btn svg {
  width: 15px;
  height: 15px;
  color: inherit;
}

.copy-btn .icon-check {
  display: none;
}

.copy-btn.is-copied {
  color: var(--accent-2);
}

.copy-btn.is-copied .icon-copy {
  display: none;
}

.copy-btn.is-copied .icon-check {
  display: block;
}

.contact-form-col {
  border-left: 1px solid var(--border-dark);
  padding-left: 3.5rem;
}

.contact-form-col h3 {
  color: var(--accent-bright);
  font-size: 1.15rem;
  margin-bottom: 1.25rem;
}

.field {
  width: 100%;
  margin-bottom: 0.9rem;
  padding: 0.85rem 1rem;
  background: transparent;
  border: 1px solid var(--border-dark);
  border-radius: 14px;
  color: var(--ink-on-dark);
  font-family: inherit;
  font-size: 0.92rem;
}

.field::placeholder {
  color: var(--ink-on-dark-muted);
}

.field:focus {
  outline: none;
  border-color: var(--accent);
}

textarea.field {
  resize: vertical;
  min-height: 100px;
}

.form-note {
  font-size: 0.78rem;
  color: var(--ink-on-dark-muted);
  margin-top: 0.6rem;
}

/* Footer */

footer {
  background: var(--bg-dark);
  border-top: 1px solid var(--border-dark);
  padding: 1.5rem 0;
  text-align: center;
}

footer p {
  color: var(--ink-on-dark-muted);
  font-size: 0.8rem;
  margin: 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.4rem 1.25rem;
}

.footer-link {
  color: var(--ink-on-dark-muted);
  font-size: 0.78rem;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer-link:hover {
  color: var(--ink-on-dark);
}

/* Skip link (accessibility) */

.skip-link {
  position: fixed;
  top: -60px;
  left: 1rem;
  z-index: 200;
  background: var(--accent-orange);
  color: var(--accent-orange-ink);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.7rem 1.1rem;
  border-radius: 10px;
  text-decoration: none;
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: 1rem;
}

/* Back to top */

.back-to-top {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 70;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent-orange);
  color: var(--accent-orange-ink);
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s, bottom 0.2s ease;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.back-to-top.banner-open {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.back-to-top svg {
  width: 20px;
  height: 20px;
}

.back-to-top:hover {
  background: var(--accent-orange-bright);
}

/* Cookie consent banner */

.cookie-banner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 90;
  background: var(--bg-dark-2);
  border-top: 1px solid var(--border-dark);
}

.cookie-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding: 1.1rem 1.75rem;
}

.cookie-banner-inner p {
  margin: 0;
  color: var(--ink-on-dark-muted);
  font-size: 0.85rem;
  max-width: 62ch;
}

.cookie-banner-inner a {
  color: var(--accent-bright);
}

.cookie-banner-actions {
  display: flex;
  gap: 0.75rem;
  flex: none;
}

.cookie-banner-actions .btn {
  padding: 0.55rem 1.1rem;
  font-size: 0.85rem;
  width: auto;
}

@media (max-width: 640px) {
  .back-to-top {
    right: 1rem;
    bottom: 1rem;
  }

  .cookie-banner-inner {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }
}

/* Motion */

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}

@keyframes energy-pulse {
  0% { top: 6px; opacity: 0; }
  8% { opacity: 1; }
  92% { opacity: 1; }
  100% { top: calc(100% - 6px); opacity: 0; }
}

@keyframes energy-glow {
  0%, 100% { filter: drop-shadow(0 0 0 transparent); }
  50% { filter: drop-shadow(0 0 4px var(--accent)); }
}

.hero-copy > * {
  animation: fadeUp 0.6s ease both;
}

/* Scroll-driven reveal + parallax — native CSS, progressive enhancement only.
   Unsupported browsers simply see the content, fully visible, with no animation. */

@keyframes reveal-up {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: none; }
}

@keyframes hero-parallax {
  from { transform: scale(1.08) translateY(0); }
  to { transform: scale(1.08) translateY(5%); }
}

@media (prefers-reduced-motion: no-preference) {
  @supports (animation-timeline: view()) {
    .how-col,
    .approach-row,
    .journey-step,
    .chart-card,
    .faq-item,
    .stat {
      animation: reveal-up linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 55%;
    }
  }

  @supports (animation-timeline: scroll()) {
    .hero-photo img {
      animation: hero-parallax linear;
      animation-timeline: scroll(root);
      animation-range: 0 70vh;
    }
  }
}

/* Chart: JS-triggered (IntersectionObserver adds .in-view once) — works in every modern
   browser, independent of scroll speed or animation-timeline support. The reference line
   and peak bands fade in once and stay put; the "With Coreon" line loops continuously
   (draw in, hold, fade, reset) once triggered, like a live signal redrawing itself. */

@keyframes chart-line-loop {
  0%   { stroke-dashoffset: 950; opacity: 1; }
  30%  { stroke-dashoffset: 0;   opacity: 1; }
  72%  { stroke-dashoffset: 0;   opacity: 1; }
  84%  { stroke-dashoffset: 0;   opacity: 0; }
  85%  { stroke-dashoffset: 950; opacity: 0; }
  100% { stroke-dashoffset: 950; opacity: 0; }
}

/* Same choreography, sized for the accumulated chart's shorter path (~723 units,
   measured — a smoother, mostly-monotonic curve is a shorter path than the wavy one). */
@keyframes chart-acc-line-loop {
  0%   { stroke-dashoffset: 760; opacity: 1; }
  30%  { stroke-dashoffset: 0;   opacity: 1; }
  72%  { stroke-dashoffset: 0;   opacity: 1; }
  84%  { stroke-dashoffset: 0;   opacity: 0; }
  85%  { stroke-dashoffset: 760; opacity: 0; }
  100% { stroke-dashoffset: 760; opacity: 0; }
}

@media (prefers-reduced-motion: no-preference) {
  .chart-line-after {
    stroke-dasharray: 950;
    stroke-dashoffset: 950;
  }

  .chart-line-after-acc {
    stroke-dasharray: 760;
    stroke-dashoffset: 760;
  }

  .chart-line-before {
    opacity: 0;
    transition: opacity 1s ease 0.3s;
  }

  .chart-peak-band {
    opacity: 0;
    transition: opacity 0.9s ease 0.5s;
  }

  .chart-card.in-view .chart-line-after {
    animation: chart-line-loop 6.5s ease-in-out infinite;
  }

  .chart-card.in-view .chart-line-after-acc {
    animation: chart-acc-line-loop 6.5s ease-in-out infinite;
  }

  .chart-card.in-view .chart-line-before {
    opacity: 0.75;
  }

  .chart-card.in-view .chart-peak-band {
    opacity: 0.08;
  }
}

/* View Transitions (language switch): quick, simple crossfade */
::view-transition-old(root),
::view-transition-new(root) {
  animation-duration: 0.32s;
}

@media (prefers-reduced-motion: reduce) {
  ::view-transition-old(root),
  ::view-transition-new(root) {
    animation-duration: 0.01ms !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-copy > * {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }

  .journey-steps::after,
  .leaf-card svg {
    animation: none !important;
  }

  .journey-steps::after {
    opacity: 0 !important;
  }

  html {
    scroll-behavior: auto;
  }
}

/* Responsive */

@media (max-width: 960px) {
  .approach-grid, .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-bottom: 2rem;
  }

  .hero-photo {
    position: static;
    width: 100%;
    height: 260px;
    margin-top: 2rem;
    border-radius: 24px;
  }

  .hero-photo::after {
    background: linear-gradient(180deg, rgba(7, 26, 43,0.35) 0%, transparent 30%);
  }

  .hero-wave,
  .journey-wave,
  .approach-wave,
  .contact-wave,
  .faq-cta-wave,
  .chart-brand-mark,
  .journey-brand-mark,
  .approach-brand-mark,
  .faq-brand-mark,
  .contact-brand-mark {
    display: none;
  }

  .hero-copy {
    max-width: none;
  }

  .leaf-card {
    max-width: none;
    margin-top: 1.5rem;
  }

  .how-grid {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 2.5rem;
  }

  .how-col:nth-child(3) {
    border-left: none;
  }

  .journey-step {
    grid-template-columns: 1fr;
  }

  .journey-step .journey-media,
  .journey-step.is-reverse .journey-media {
    order: 1;
  }

  .journey-step .journey-copy,
  .journey-step.is-reverse .journey-copy {
    order: 2;
  }

  .journey-steps {
    padding-left: 2.4rem;
    gap: 3rem;
  }

  .journey-num {
    left: -2.4rem;
    top: -2px;
    transform: none;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    row-gap: 1.75rem;
  }

  .stat {
    border-left: none;
    padding-left: 0;
  }

  .contact-form-col {
    border-left: none;
    padding-left: 0;
    padding-top: 2.5rem;
    border-top: 1px solid var(--border-dark);
  }
}

@media (max-width: 640px) {
  .how-grid {
    grid-template-columns: 1fr;
  }

  .how-col {
    border-left: none;
    padding: 0;
  }

  .leaf-card {
    position: static;
    margin-top: 1rem;
  }

  .journey-media img {
    height: 220px;
  }
}

@media (max-width: 560px) {
  .step-label {
    display: none;
  }

  .step-rail-inner {
    gap: 1.1rem;
  }
}