/* =========================================
   QAYRA DESIGN TOKENS
========================================= */

:root {
  --color-bg: #ffffff;
  --color-surface: #ffffff;
  --color-surface-soft: #f0f3f9;
  --color-text: #0d1117;
  --color-muted: #5b6578;
  --color-subtle: #7c879c;
  --color-border: #dfe4ed;
  --color-border-strong: #c7cfdd;

  /* Brand colors come from the Jarly mascot (widget: packages/widget/src/entry/jarly.ts). */
  --color-accent: #1489f8;
  --color-accent-hover: #0870e8;
  --color-accent-strong: #0758c9;
  --color-accent-bright: #35b8ff;
  --color-accent-soft: #e8f3fe;
  --color-cyan: #66e9ff;
  --color-cyan-soft: #d2faff;
  --color-dark: #0d1117;
  --color-dark-soft: #171b21;
  --color-section-blue: #0758c9;
  --color-section-blue-soft: #034ea8;
  --color-light: #f8faff;
  --color-warning-soft: #fff0c0;
  --stat-value-size: clamp(2rem, 3.2vw, 2.45rem);
  --stat-percent-size: clamp(1.65rem, 2.5vw, 1.8rem);

  --font-sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Avenir Next", Avenir, Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;

  --radius-sm: 0.5rem;
  --radius-md: 0.875rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;

  --shadow-soft: 0 1.5rem 4rem rgba(23, 32, 51, 0.08);
  --content-width: 75rem;
  --header-height: 5rem;
  --section-space: clamp(4rem, 7.5vw, 6.5rem);
}

/* =========================================
   BASE
========================================= */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 1rem);
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

/* The hidden attribute must win over component display rules (grid, flex). */
[hidden] {
  display: none !important;
}

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

a {
  color: inherit;
}

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

:focus-visible {
  outline: 0.2rem solid var(--color-accent);
  outline-offset: 0.25rem;
}

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

h1,
h2,
h3,
p,
blockquote {
  margin-top: 0;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: 1.08;
}

h1 {
  max-width: 12ch;
  margin-bottom: 1.6rem;
  font-size: clamp(3rem, 6.6vw, 5.7rem);
}

h2 {
  margin-bottom: 1.5rem;
  font-size: clamp(2.4rem, 4.6vw, 4.25rem);
}

h3 {
  font-size: 1.25rem;
}

.container {
  width: min(calc(100% - 2.5rem), var(--content-width));
  margin-inline: auto;
}

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

.section-heading {
  max-width: 47rem;
  margin-bottom: clamp(2.25rem, 5vw, 4rem);
}

.section-heading-wide {
  max-width: 61rem;
}

.section-heading > p:last-child {
  max-width: 42rem;
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: clamp(1.05rem, 2vw, 1.22rem);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1.2rem;
  color: var(--color-accent-strong);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 1.4rem;
  height: 1px;
  background: currentColor;
  content: "";
}

.eyebrow-light {
  color: var(--color-cyan);
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--color-text);
  color: white;
  text-decoration: none;
  transform: translateY(-150%);
}

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

/* =========================================
   SHARED BUTTONS & LINKS
========================================= */

.button {
  display: inline-flex;
  min-height: 3.25rem;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.25rem;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: white;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color 180ms ease,
    border-color 180ms ease,
    transform 180ms ease;
}

.button:hover {
  border-color: var(--color-accent-hover);
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

.button-small {
  min-height: 2.65rem;
  padding-inline: 1rem;
  font-size: 0.82rem;
}

.button-light {
  border-color: var(--color-light);
  background: var(--color-light);
  color: var(--color-dark);
}

.button-light:hover {
  border-color: white;
  background: white;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.4rem;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--color-text);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

.text-link:hover {
  color: var(--color-accent-strong);
}

.text-link-light {
  color: var(--color-light);
}

.source-link {
  display: inline-block;
  color: var(--color-muted);
  font-size: 0.72rem;
  line-height: 1.5;
  text-decoration-color: var(--color-border-strong);
  text-underline-offset: 0.2rem;
}

.source-link:hover {
  color: var(--color-accent-strong);
  text-decoration-color: currentColor;
}

/* =========================================
   HEADER & NAVIGATION
========================================= */

/* Fixed and transparent over the hero; script.js adds .is-scrolled once the page moves. */
.site-header {
  position: fixed;
  z-index: 50;
  top: 0;
  right: 0;
  left: 0;
  height: var(--header-height);
  border-bottom: 1px solid transparent;
  background: transparent;
  transition:
    background-color 200ms ease,
    border-color 200ms ease;
}

.site-header.is-scrolled,
.menu-open .site-header {
  border-bottom-color: rgba(13, 17, 23, 0.06);
  background: rgba(255, 255, 255, 0.62);
  -webkit-backdrop-filter: saturate(180%) blur(1.25rem);
  backdrop-filter: saturate(180%) blur(1.25rem);
}

.header-inner {
  display: flex;
  height: 100%;
  align-items: center;
  gap: 2rem;
}

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

.brand-name {
  font-family: var(--font-sans);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.site-navigation {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2.4vw, 2rem);
}

.site-navigation > a {
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: color 150ms ease;
}

.site-navigation > a:hover {
  color: var(--color-accent-strong);
}

.header-cta {
  margin-left: auto;
  white-space: nowrap;
}

.menu-toggle {
  display: none;
}

/* =========================================
   SECTION 01 | HERO
========================================= */

.hero {
  position: relative;
  display: flex;
  min-height: auto;
  align-items: center;
  padding-top: calc(var(--header-height) + var(--section-space));
  background:
    radial-gradient(ellipse at 82% 42%, rgba(53, 184, 255, 0.035), transparent 58%),
    radial-gradient(ellipse at 62% 5%, rgba(102, 233, 255, 0.025), transparent 48%),
    var(--color-bg);
  overflow: hidden;
  isolation: isolate;
}

.hero::after {
  position: absolute;
  z-index: 1;
  inset: 0;
  background: linear-gradient(0deg, var(--color-bg), transparent 12.6%);
  pointer-events: none;
  content: "";
}

.hero-neural-background {
  position: absolute;
  z-index: 0;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-neural-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  align-items: center;
  gap: clamp(2rem, 3vw, 3rem);
  grid-template-columns: minmax(0, 1.12fr) minmax(25rem, 0.88fr);
}

.hero-copy {
  position: relative;
  isolation: isolate;
}

.hero-copy::before {
  position: absolute;
  z-index: -1;
  inset: -1rem -1.25rem;
  border-radius: 1.5rem;
  background: rgba(255, 255, 255, 0.424);
  filter: blur(1.25rem);
  pointer-events: none;
  content: "";
}

.hero-mascot {
  display: grid;
  min-width: 0;
  place-items: center;
}

.hero-jarly {
  display: block;
  width: clamp(17rem, 25vw, 23rem);
  height: auto;
  overflow: visible;
  transform: translate3d(var(--jarly-x, 0px), calc(var(--jarly-y, 0px) + var(--jarly-hop-y, 0px)), 0) rotate(var(--jarly-tilt, 0deg));
  transform-origin: center;
  transition: none;
  pointer-events: none;
  cursor: default;
  outline: none;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.hero-jarly:focus,
.hero-jarly:focus-visible {
  outline: none;
}

.hero-jarly .jarly-eye-alignment,
.hero-jarly .jarly-pose {
  pointer-events: visiblePainted;
}

.hero-jarly .kc-jarly-eye,
.hero-jarly .jarly-eye-alignment,
.hero-jarly .jarly-pose {
  transition: none;
}

.hero-lead {
  max-width: 42rem;
  margin-bottom: 2rem;
  color: var(--color-muted);
  font-size: clamp(1.05rem, 1.6vw, 1.18rem);
}

.hero-note {
  margin: 1.35rem 0 0;
  color: var(--color-subtle);
  font-size: 0.78rem;
}

.hero-note span {
  margin-inline: 0.4rem;
}

/* =========================================
   SECTION 03 | PROBLEM AND EVIDENCE
========================================= */

.problem-section {
  padding-bottom: clamp(3rem, 5vw, 4.5rem);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}

.problem-layout {
  display: grid;
  align-items: end;
  gap: clamp(2.5rem, 7vw, 6rem);
  margin-bottom: clamp(3rem, 6vw, 4.5rem);
  grid-template-columns: minmax(16rem, 0.8fr) minmax(0, 1.2fr);
}

.question {
  max-width: 31rem;
  margin-bottom: 0;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.5vw, 2rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.35;
}

.journey-comparison {
  border-block: 1px solid var(--color-border);
}

.journey-row {
  display: grid;
  align-items: start;
  gap: 1.5rem;
  padding-block: 1.25rem;
  grid-template-columns: 6rem 1fr;
}

.journey-row + .journey-row {
  border-top: 1px solid var(--color-border);
}

.journey-label {
  color: var(--color-subtle);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.journey-steps {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem;
  color: var(--color-muted);
  font-size: 0.82rem;
}

.journey-steps span:nth-child(even) {
  color: var(--color-border-strong);
}

.journey-natural blockquote {
  margin-bottom: 0;
  color: var(--color-accent-strong);
  font-size: 1rem;
  font-weight: 650;
}

.problem-evidence {
  display: grid;
  border-block: 1px solid var(--color-border-strong);
  grid-template-columns: repeat(3, 1fr);
}

.evidence-item {
  display: flex;
  min-width: 0;
  min-height: 24rem;
  flex-direction: column;
  padding: clamp(1.75rem, 4vw, 3rem);
}

.evidence-item:first-child {
  padding-left: 0;
}

.evidence-item:last-child {
  padding-right: 0;
}

.evidence-item + .evidence-item {
  border-left: 1px solid var(--color-border-strong);
}

.evidence-step {
  margin-bottom: 2rem;
  color: var(--color-muted);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.evidence-value {
  margin-bottom: 1.2rem;
  font-family: var(--font-display);
  font-size: var(--stat-value-size);
  font-weight: 550;
  letter-spacing: -0.08em;
  line-height: 1;
}

.evidence-value span,
.evidence-dual-value strong span {
  color: var(--color-accent);
  font-size: var(--stat-percent-size);
  letter-spacing: inherit;
}

.evidence-dual-value {
  display: flex;
  gap: clamp(1rem, 3vw, 2.5rem);
  margin-bottom: 1.2rem;
}

.evidence-dual-value > span {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.evidence-dual-value strong {
  font-family: var(--font-display);
  font-size: var(--stat-value-size);
  font-weight: 550;
  letter-spacing: -0.075em;
  line-height: 1;
}

.evidence-dual-value small {
  color: var(--color-subtle);
  font-size: 0.72rem;
  font-weight: 700;
}

.evidence-copy {
  max-width: 25rem;
  margin-bottom: 1rem;
  font-size: 1rem;
  line-height: 1.55;
}

.evidence-context {
  margin: -0.35rem 0 1rem;
  color: var(--color-muted);
  font-size: 0.78rem;
}

.evidence-item .source-link {
  margin-top: auto;
}

/* =========================================
   SECTION 02 | DEMO PLACEHOLDER
========================================= */

.demo-section {
  /* Temporary divider while developing the hero/demo transition. */
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
}

.demo-heading {
  margin: clamp(2.5rem, 5vw, 4rem) 0 0;
}

.demo-section .eyebrow-light {
  color: var(--color-accent-strong);
}

.demo-heading > p:last-child {
  color: var(--color-muted);
}

.demo-frame {
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  box-shadow: 0 1.5rem 4rem rgba(23, 32, 51, 0.1);
  overflow: hidden;
}

.demo-frame-header {
  display: flex;
  min-height: 4.2rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1.2rem, 3vw, 2rem);
  border-bottom: 1px solid var(--color-border);
}

.demo-frame-header > div {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
}

.demo-frame-title {
  font-size: 0.82rem;
  font-weight: 750;
}

.demo-frame-subtitle {
  color: var(--color-subtle);
  font-size: 0.68rem;
}

.demo-status {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--color-muted);
  font-size: 0.68rem;
  font-weight: 700;
}

.demo-status > span {
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--color-accent);
}

.demo-placeholder {
  display: grid;
  min-height: 28rem;
  grid-template-columns: minmax(16rem, 0.8fr) minmax(0, 1.2fr);
}

.demo-prompt-column {
  display: flex;
  flex-direction: column;
  padding: clamp(2rem, 5vw, 4rem);
  border-right: 1px solid var(--color-border);
}

.demo-prompt-column .button {
  align-self: flex-start;
  margin-top: 1.5rem;
}

.placeholder-label {
  margin-bottom: 1.1rem;
  color: var(--color-subtle);
  font-size: 0.67rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.placeholder-prompt {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  padding: 1.15rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-accent-soft);
}

.placeholder-prompt span {
  color: var(--color-accent-strong);
}

.placeholder-prompt p {
  margin-bottom: 0;
  color: var(--color-text);
  font-size: 0.9rem;
  font-weight: 600;
}

.placeholder-note {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  margin-top: auto;
  padding-top: 3rem;
}

.placeholder-note-icon {
  display: grid;
  width: 1.7rem;
  height: 1.7rem;
  flex: 0 0 auto;
  place-items: center;
  border: 1px dashed var(--color-border-strong);
  border-radius: 50%;
  color: var(--color-accent-strong);
}

.placeholder-note strong {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.78rem;
}

.placeholder-note p {
  max-width: 18rem;
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 0.72rem;
}

.demo-skeleton {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(2rem, 5vw, 4rem);
  background:
    linear-gradient(rgba(23, 32, 51, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 32, 51, 0.035) 1px, transparent 1px),
    var(--color-surface-soft);
  background-size: 2rem 2rem;
}

.skeleton-toolbar {
  display: flex;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.skeleton-toolbar span {
  display: block;
  width: 20%;
  height: 0.45rem;
  border-radius: 1rem;
  background: var(--color-border-strong);
}

.skeleton-toolbar span:last-child {
  width: 11%;
}

.skeleton-grid {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(3, 1fr);
}

.skeleton-card {
  min-width: 0;
  padding: 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.skeleton-card-primary {
  border-color: var(--color-accent);
  box-shadow: inset 0 0 0 1px var(--color-accent-soft);
}

.skeleton-image {
  display: block;
  height: clamp(6rem, 14vw, 10rem);
  border-radius: calc(var(--radius-md) - 0.3rem);
  background: linear-gradient(145deg, #e1e7f0, #f4f6fa);
}

.skeleton-line {
  display: block;
  width: 54%;
  height: 0.38rem;
  margin-top: 0.55rem;
  border-radius: 1rem;
  background: var(--color-border-strong);
}

.skeleton-line-wide {
  width: 78%;
  margin-top: 0.9rem;
}

/* =========================================
   SECTION 04 | WHY NOW
========================================= */

.why-section {
  padding-top: clamp(3rem, 5vw, 4.5rem);
  background: var(--color-bg);
}

.why-layout {
  display: grid;
  align-items: end;
  gap: clamp(2.5rem, 8vw, 7rem);
  grid-template-columns: minmax(0, 1.2fr) minmax(18rem, 0.8fr);
}

.why-layout .section-heading {
  margin-bottom: 0;
}

.why-copy {
  padding-left: clamp(1.25rem, 3vw, 2.25rem);
  border-left: 2px solid var(--color-accent);
}

.why-copy > p:first-child {
  margin-bottom: 1.5rem;
  color: var(--color-muted);
  font-size: clamp(1rem, 1.7vw, 1.16rem);
}

.why-principle {
  margin-bottom: 0;
  color: var(--color-text);
  font-weight: 700;
}

/* =========================================
   SECTION 05 | DIFFERENCE
========================================= */

.difference-section {
  padding-bottom: clamp(3rem, 5vw, 4.5rem);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}

.difference-heading {
  margin-bottom: clamp(2rem, 4vw, 3.25rem);
}

.difference-heading > .eyebrow {
  justify-content: center;
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.difference-headline-pair {
  display: grid;
  align-items: center;
  max-width: 68rem;
  margin-inline: auto;
  gap: clamp(2rem, 5vw, 4rem);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.difference-headline-pair h2,
.difference-statement {
  max-width: 11ch;
  margin: 0 auto;
  text-align: center;
}

.difference-statement {
  color: var(--color-accent-strong);
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 4.6vw, 4.25rem);
  font-weight: 550;
  letter-spacing: -0.055em;
  line-height: 1.05;
}

.interface-comparison {
  display: grid;
  margin-bottom: clamp(1.75rem, 3vw, 2.5rem);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  grid-template-columns: repeat(2, 1fr);
}

.interface-model {
  display: grid;
  padding: clamp(1.5rem, 4vw, 3rem);
  gap: 2rem;
  grid-template-rows: auto minmax(13rem, 1fr) auto;
}

.interface-model + .interface-model {
  border-left: 1px solid var(--color-border);
}

.interface-model-muted {
  background: #f0f2f6;
  color: var(--color-muted);
}

.interface-model-qayra {
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
}

.model-heading {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
}

.model-heading span {
  font-size: 0.65rem;
  font-weight: 800;
}

.model-heading h3 {
  margin-bottom: 0;
}

.model-visual {
  align-self: center;
  width: min(100%, 21rem);
  margin-inline: auto;
}

.chat-model {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding: 1.2rem;
  border: 1px solid #cfd5df;
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.chat-line {
  display: block;
  width: 58%;
  height: 0.35rem;
  border-radius: 1rem;
  background: #cfd5df;
}

.chat-line-short {
  width: 33%;
}

.chat-bubble {
  display: block;
  width: 78%;
  height: 3rem;
  margin-left: auto;
  border-radius: 0.7rem 0.7rem 0.1rem;
  background: #e0e4eb;
}

.chat-bubble-small {
  width: 61%;
  height: 2.4rem;
  margin-right: auto;
  margin-left: 0;
  border-radius: 0.7rem 0.7rem 0.7rem 0.1rem;
}

.storefront-model {
  position: relative;
  padding: 1.2rem;
  border: 1px solid rgba(20, 137, 248, 0.38);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.storefront-model-bar {
  display: block;
  width: 55%;
  height: 0.35rem;
  margin-bottom: 1.3rem;
  border-radius: 1rem;
  background: rgba(20, 137, 248, 0.45);
}

.storefront-model > div {
  display: grid;
  gap: 0.6rem;
  grid-template-columns: repeat(3, 1fr);
}

.storefront-model > div span {
  display: block;
  height: 6rem;
  border: 1px solid var(--color-border);
  border-radius: 0.4rem;
  background: linear-gradient(#e2e7f0 65%, #f4f6fa 65%);
}

.storefront-model > div span:first-child {
  border-color: var(--color-accent);
}

.storefront-model-explanation {
  position: absolute;
  right: 0.6rem;
  bottom: 0.6rem;
  width: 3rem;
  height: 1rem;
  border-radius: 1rem;
  background: var(--color-accent);
}

.interface-model > p {
  max-width: 29rem;
  margin-bottom: 0;
  font-size: 0.88rem;
}


.difference-explanation {
  max-width: 50rem;
  margin: 0 auto;
  color: var(--color-muted);
  font-size: 0.92rem;
  line-height: 1.65;
  text-align: center;
}

.principles {
  display: grid;
  border-top: 1px solid var(--color-border);
  grid-template-columns: repeat(3, 1fr);
}

.demo-section .principles {
  margin-top: clamp(2.5rem, 5vw, 4rem);
}

.principles article {
  padding: 2.2rem clamp(0rem, 3vw, 2rem) 0;
}

.principles article + article {
  padding-left: clamp(1.5rem, 4vw, 3rem);
  border-left: 1px solid var(--color-border);
}

.principle-number {
  display: block;
  margin-bottom: 2rem;
  color: var(--color-accent);
  font-size: 0.68rem;
  font-weight: 800;
}

.principles h3 {
  margin-bottom: 0.8rem;
}

.principles p {
  max-width: 18rem;
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 0.86rem;
}

/* =========================================
   SUBTLE SCROLL REVEAL
========================================= */

.reveal-ready .scroll-reveal {
  --reveal-delay: 0ms;
  opacity: 0.08;
  transform: translate3d(0, 18px, 0);
  transition:
    opacity 680ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 680ms cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: 0ms;
  will-change: opacity, transform;
}

.reveal-ready .scroll-reveal.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  transition-delay: var(--reveal-delay);
}

/* =========================================
   SECTION 06 | CONTROL AND TRUST
========================================= */

.trust-section {
  padding-top: clamp(3rem, 5vw, 4.5rem);
  background: var(--color-bg);
}

.trust-layout {
  display: grid;
  align-items: center;
  gap: clamp(3rem, 8vw, 7rem);
  grid-template-columns: 1fr 0.85fr;
}

.trust-copy h2 {
  max-width: 13ch;
}

.trust-copy > p:not(.eyebrow) {
  max-width: 39rem;
  color: var(--color-muted);
  font-size: 1.05rem;
}

.trust-proof {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border-strong);
}

.trust-proof > strong {
  flex: 0 0 auto;
  color: var(--color-accent-strong);
  font-family: var(--font-display);
  font-size: clamp(2.7rem, 5vw, 4.25rem);
  font-weight: 550;
  letter-spacing: -0.07em;
  line-height: 1;
}

.trust-proof p {
  max-width: 30rem;
  margin-bottom: 0.45rem;
  font-size: 0.9rem;
}

.trust-proof + .trust-proof {
  margin-top: 1.5rem;
}

.trust-scope {
  display: block;
  margin-bottom: 0.55rem;
  color: var(--color-subtle);
  font-size: 0.72rem;
}

.control-concept {
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.concept-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2.2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-subtle);
  font-size: 0.63rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.concept-label span:last-child {
  padding: 0.25rem 0.5rem;
  border-radius: 2rem;
  background: var(--color-warning-soft);
  color: #7a4e12;
  letter-spacing: 0.04em;
}

.control-concept > p {
  margin-bottom: 1rem;
  color: var(--color-muted);
  font-size: 0.74rem;
  font-weight: 700;
}

.concept-controls {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.concept-controls > span {
  display: flex;
  min-height: 3.25rem;
  align-items: center;
  gap: 0.8rem;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 0.8rem;
  font-weight: 650;
}

.concept-controls > span > span {
  display: grid;
  width: 1.55rem;
  height: 1.55rem;
  place-items: center;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
  font-size: 0.72rem;
}

/* =========================================
   SECTION 07 | MERCHANT MODEL AND CONTACT
========================================= */

.merchant-section {
  padding-top: 0;
  background: var(--color-bg);
}

.merchant-cta {
  position: relative;
  display: grid;
  align-items: center;
  gap: clamp(2.5rem, 7vw, 6rem);
  padding: clamp(2rem, 5vw, 4.5rem);
  border-radius: var(--radius-xl);
  background: var(--color-section-blue);
  color: var(--color-light);
  overflow: hidden;
  /* The decorative circle reaches past the right edge; clip also stops focus or scripts from
     scrolling the box sideways, which hidden still allows. */
  overflow: clip;
  grid-template-columns: minmax(0, 0.82fr) minmax(22rem, 1.18fr);
}

.merchant-cta::after {
  position: absolute;
  right: -11rem;
  bottom: -17rem;
  width: 28rem;
  height: 28rem;
  border: 1px solid rgba(102, 233, 255, 0.2);
  border-radius: 50%;
  content: "";
}

.merchant-copy {
  position: relative;
  z-index: 1;
}

.merchant-cta h2 {
  max-width: 12ch;
  margin-bottom: 1.4rem;
  font-size: clamp(2.5rem, 4.6vw, 4.25rem);
}

.merchant-copy > p:not(.eyebrow) {
  max-width: 39rem;
  color: var(--color-cyan-soft);
}

.merchant-reinforcement {
  margin-bottom: 0;
  color: var(--color-light) !important;
  font-size: 0.84rem;
  font-weight: 700;
}

.contact-form {
  position: relative;
  z-index: 1;
  padding: clamp(1.4rem, 3vw, 2.25rem);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.06);
}

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

.form-heading h3 {
  margin-bottom: 0.45rem;
  color: var(--color-light);
  font-size: 1.35rem;
  letter-spacing: -0.025em;
}

.form-heading p {
  margin-bottom: 0;
  color: var(--color-cyan-soft);
  font-size: 0.86rem;
}

.form-fields {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.form-field {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 0.45rem;
}

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

.form-field label {
  color: var(--color-cyan-soft);
  font-size: 0.875rem;
  font-weight: 700;
}

.form-field input,
.form-field textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.07);
  color: var(--color-light);
  font: inherit;
  font-size: 1rem;
}

.form-field input {
  min-height: 3rem;
  padding: 0.65rem 0.8rem;
}

.form-field textarea {
  min-height: 7rem;
  padding: 0.75rem 0.8rem;
  line-height: 1.5;
  resize: vertical;
}

.form-field input:hover,
.form-field textarea:hover {
  border-color: rgba(102, 233, 255, 0.62);
}

.form-field input:focus-visible,
.form-field textarea:focus-visible {
  border-color: var(--color-cyan);
  outline: 0.2rem solid rgba(102, 233, 255, 0.42);
  outline-offset: 0.1rem;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.25rem;
}

.form-note {
  max-width: 24rem;
  margin-bottom: 0;
  color: #aeebff;
  font-size: 0.72rem;
  line-height: 1.45;
}

.form-note a,
.form-status a {
  color: inherit;
  text-underline-offset: 0.2em;
}

.form-optional {
  font-weight: 400;
  opacity: 0.8;
}

/* Honeypot: out of sight and out of the tab order, but still in the form for bots. */
.form-trap {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.contact-form .button {
  flex-shrink: 0;
  white-space: nowrap;
}

.contact-form .button:disabled {
  cursor: progress;
  opacity: 0.75;
}

.form-status {
  margin: 1rem 0 0;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-sm);
  background: var(--color-warning-soft);
  color: var(--color-text);
  font-size: 0.86rem;
  line-height: 1.45;
}

.form-success h3 {
  margin-bottom: 0.45rem;
  color: var(--color-light);
  font-size: 1.35rem;
  letter-spacing: -0.025em;
}

.form-success p {
  margin-bottom: 0;
  color: var(--color-cyan-soft);
}

.form-success:focus {
  outline: none;
}

/* =========================================
   FOOTER
========================================= */

.site-footer {
  padding-block: 2.5rem;
  border-top: 1px solid var(--color-border);
}

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

.brand-footer {
  margin-right: 1rem;
}

.footer-inner > p {
  margin-bottom: 0;
  color: var(--color-subtle);
  font-size: 0.72rem;
}

.footer-links {
  display: flex;
  gap: 1.2rem;
  font-size: 0.72rem;
}

.footer-links a {
  color: var(--color-muted);
  text-decoration: none;
}

.footer-links a:hover,
.footer-links a[aria-current="page"] {
  color: var(--color-accent-strong);
}

.copyright {
  white-space: nowrap;
}

/* =========================================
   LEGAL PAGES (Impressum, Datenschutz, 404)
   These pages load no script.js, so the header carries .is-scrolled from the start.
========================================= */

/* Short pages keep the footer at the bottom of the window. */
.legal-page {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
}

.legal {
  flex: 1;
  padding-top: calc(var(--header-height) + clamp(2.5rem, 6vw, 4.5rem));
  padding-bottom: var(--section-space);
}

.legal-inner {
  max-width: 46rem;
}

.legal h1 {
  max-width: none;
  margin-bottom: 1.5rem;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
}

.legal h2 {
  margin: 2.75rem 0 0.9rem;
  font-size: clamp(1.3rem, 2.4vw, 1.55rem);
  letter-spacing: -0.02em;
}

.legal p,
.legal li {
  color: var(--color-muted);
}

.legal address {
  margin-bottom: 1rem;
  color: var(--color-text);
  font-style: normal;
}

.legal ul {
  margin: 0 0 1rem;
  padding-left: 1.2rem;
}

.legal-inner a:not(.button) {
  color: var(--color-accent-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

.legal-meta {
  color: var(--color-subtle);
  font-size: 0.85rem;
}

/* =========================================
   RESPONSIVE LAYOUT
========================================= */

@media (max-width: 960px) {
  .hero {
    min-height: auto;
  }

  .hero-grid,
  .problem-layout,
  .why-layout,
  .trust-layout,
  .merchant-cta {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 44rem;
  }

  .hero-jarly {
    width: min(100%, 20rem);
  }

  .demo-placeholder {
    min-height: 28rem;
    grid-template-columns: minmax(15rem, 0.75fr) minmax(0, 1.25fr);
  }

  .why-copy {
    max-width: 42rem;
  }

  .footer-inner {
    grid-template-columns: auto 1fr auto;
  }

  .footer-inner > p:first-of-type {
    display: none;
  }
}

@media (max-width: 760px) {
  :root {
    --header-height: 4.5rem;
  }

  .container {
    width: min(calc(100% - 1.5rem), var(--content-width));
  }

  .header-inner {
    gap: 1rem;
  }

  .menu-toggle {
    order: 1;
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.6rem 0;
    border: 0;
    background: transparent;
    color: var(--color-text);
    font: inherit;
    font-size: 0.78rem;
    font-weight: 700;
    cursor: pointer;
  }

  .menu-toggle-icon,
  .menu-toggle-icon::before,
  .menu-toggle-icon::after {
    display: block;
    width: 1.05rem;
    height: 1px;
    background: currentColor;
    transition: transform 180ms ease;
  }

  .menu-toggle-icon {
    position: relative;
  }

  .menu-toggle-icon::before,
  .menu-toggle-icon::after {
    position: absolute;
    left: 0;
    content: "";
  }

  .menu-toggle-icon::before {
    top: -0.3rem;
  }

  .menu-toggle-icon::after {
    top: 0.3rem;
  }

  .menu-toggle[aria-expanded="true"] .menu-toggle-icon {
    background: transparent;
  }

  .menu-toggle[aria-expanded="true"] .menu-toggle-icon::before {
    top: 0;
    transform: rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] .menu-toggle-icon::after {
    top: 0;
    transform: rotate(-45deg);
  }

  .site-navigation {
    position: fixed;
    inset: var(--header-height) 0 auto;
    display: none;
    min-height: calc(100svh - var(--header-height));
    flex-direction: column;
    align-items: stretch;
    padding: 1.5rem 1.25rem;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg);
  }

  .site-navigation.is-open {
    display: flex;
  }

  .site-navigation > a {
    padding-block: 0.75rem;
    border-bottom: 1px solid var(--color-border);
    font-size: 1rem;
  }

  .hero {
    padding-top: calc(var(--header-height) + 3.5rem);
  }

  .hero-grid {
    gap: 3.5rem;
  }

  .demo-placeholder {
    grid-template-columns: 1fr;
  }

  .demo-prompt-column {
    min-height: 22rem;
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }

  .demo-skeleton {
    min-height: 21rem;
  }

  .problem-evidence,
  .difference-headline-pair,
  .interface-comparison {
    grid-template-columns: 1fr;
  }

  .evidence-item {
    min-height: auto;
    padding: 2rem 0;
  }

  .evidence-item + .evidence-item {
    border-left: 0;
  }

  .evidence-item:not(:last-child) {
    border-bottom: 1px solid var(--color-border-strong);
  }

  .why-copy {
    padding-top: 1.5rem;
    padding-left: 0;
    border-top: 2px solid var(--color-accent);
    border-left: 0;
  }

  .difference-headline-pair {
    gap: 1.5rem;
  }

  .interface-model + .interface-model {
    border-top: 1px solid var(--color-border);
    border-left: 0;
  }

  .principles {
    grid-template-columns: 1fr;
  }

  .principles article {
    padding: 1.8rem 0;
  }

  .principles article + article {
    padding-left: 0;
    border-top: 1px solid var(--color-border);
    border-left: 0;
  }

  .principle-number {
    margin-bottom: 1rem;
  }

  .merchant-cta {
    border-radius: var(--radius-lg);
  }

  .form-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-links {
    flex-wrap: wrap;
  }
}

@media (max-width: 520px) {
  .hero-jarly {
    width: clamp(13rem, 52vw, 15rem);
  }

  h1 {
    font-size: clamp(2.7rem, 14vw, 4rem);
  }

  h2 {
    font-size: clamp(2.15rem, 11vw, 3.25rem);
  }

  .header-inner {
    gap: 0.75rem;
  }

  .menu-toggle {
    min-height: 2.75rem;
    margin-right: -0.5rem;
    padding-inline: 0.5rem;
  }

  .menu-toggle-label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }

  .button-row {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .form-fields {
    grid-template-columns: 1fr;
  }

  .form-field-wide {
    grid-column: auto;
  }

  .demo-frame-header > div {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.1rem;
  }

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

  .skeleton-card:last-child {
    display: none;
  }

  .trust-proof {
    align-items: flex-start;
    flex-direction: column;
  }
}

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

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

  .reveal-ready .scroll-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}