/* =========================================================================
   Ecomberry — design system
   Fonts are exposed as variables so self-hosted Space Grotesk / Inter can be
   dropped in at deploy time (add @font-face rules) with no other changes.
   ========================================================================= */
:root {
  /* Core palette */
  --ink: #0b0f14;
  --ink-2: #0e141b;
  --ink-soft: #17202b;
  --paper: #ffffff;
  --mist: #f4f6f8;
  --mist-2: #eef2f6;
  --line: #dce3ea;
  --line-strong: #c7d2dd;
  --muted: #5c6b7d;
  --muted-2: #7a8798;

  /* Accents */
  --blue: #2563eb;
  --teal: #14b8a6;
  --lime: #a3e635;
  --berry: #d94677;
  --gold: #f5c542;

  /* Signature gradients */
  --grad-brand: linear-gradient(135deg, var(--lime) 0%, var(--gold) 45%, var(--berry) 100%);
  --grad-cool: linear-gradient(120deg, var(--blue), var(--teal));
  --grad-warm: linear-gradient(120deg, var(--gold), var(--berry));
  --grad-line: linear-gradient(90deg, var(--blue), var(--teal), var(--berry));

  /* Depth */
  --shadow-sm: 0 2px 8px rgba(11, 15, 20, 0.06);
  --shadow-md: 0 12px 34px rgba(11, 15, 20, 0.10);
  --shadow-lg: 0 30px 80px rgba(11, 15, 20, 0.16);
  --shadow-glow: 0 24px 70px rgba(37, 99, 235, 0.28);

  /* Shape + rhythm */
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 22px;
  --max: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  /* Typography (swap the first family for self-hosted webfonts at deploy) */
  --font-body: "Inter", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-display: "Space Grotesk", "SF Pro Display", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

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

body.menu-open {
  overflow: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

::selection {
  background: color-mix(in srgb, var(--lime) 55%, white);
  color: var(--ink);
}

:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--gold) 75%, white);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 100;
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius-sm);
  color: var(--ink);
  background: var(--paper);
  box-shadow: var(--shadow-md);
  transform: translateY(-160%);
  transition: transform 200ms var(--ease);
}

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

.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;
}

/* =========================================================================
   Header / navigation
   ========================================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(11, 15, 20, 0.72);
  backdrop-filter: saturate(140%) blur(18px);
  -webkit-backdrop-filter: saturate(140%) blur(18px);
  transition: background 250ms var(--ease), border-color 250ms var(--ease), box-shadow 250ms var(--ease);
}

.site-header.is-scrolled {
  background: rgba(9, 12, 17, 0.9);
  border-bottom-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.nav {
  width: min(var(--max), calc(100% - 2rem));
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  color: var(--paper);
  transition: min-height 250ms var(--ease);
}

.site-header.is-scrolled .nav {
  min-height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.08rem;
  letter-spacing: -0.01em;
}

.brand-mark {
  width: 2.2rem;
  height: 2.2rem;
  flex: none;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--grad-brand);
  box-shadow: 0 6px 18px rgba(217, 70, 119, 0.35), inset 0 0 0 1px rgba(255, 255, 255, 0.25);
}

.brand-mark svg {
  width: 1.15rem;
  height: 1.15rem;
}

/* Logo lockup — the wordmark is dark, so it sits on a light rounded plate
   to read cleanly on the dark header and footer. */
.brand-logo {
  height: 2.5rem;
  width: auto;
  padding: 0.28rem 0.5rem;
  border-radius: 10px;
  background: #fff;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.25), var(--shadow-sm);
  transition: height 250ms var(--ease);
}

.site-header.is-scrolled .brand-logo {
  height: 2.25rem;
}

.footer .brand-logo {
  height: 2.4rem;
}

.nav-menu {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.94rem;
  color: rgba(255, 255, 255, 0.72);
}

.nav-menu a {
  position: relative;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  transition: color 160ms var(--ease), background 160ms var(--ease);
}

.nav-menu a::after {
  content: "";
  position: absolute;
  left: 0.75rem;
  right: 0.75rem;
  bottom: 0.28rem;
  height: 2px;
  border-radius: 2px;
  background: var(--grad-brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 220ms var(--ease);
}

.nav-menu a:hover,
.nav-menu a.is-active {
  color: #fff;
}

.nav-menu a:hover::after,
.nav-menu a.is-active::after {
  transform: scaleX(1);
}

.nav-cta {
  display: inline-flex;
  min-height: 2.7rem;
  align-items: center;
  justify-content: center;
  padding: 0 1.05rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  font-weight: 650;
  font-size: 0.92rem;
  transition: background 180ms var(--ease), border-color 180ms var(--ease), transform 180ms var(--ease);
}

.nav-cta:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  margin-left: auto;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  color: var(--paper);
  cursor: pointer;
}

.menu-toggle span:not(.sr-only) {
  display: block;
  width: 1.15rem;
  height: 2px;
  margin: 4px auto;
  border-radius: 2px;
  background: currentColor;
  transition: transform 220ms var(--ease), opacity 180ms var(--ease);
}

.menu-toggle[aria-expanded="true"] span:nth-of-type(1) {
  transform: translateY(6px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-of-type(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-of-type(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* =========================================================================
   Section shells
   ========================================================================= */
section {
  position: relative;
  padding: clamp(4.5rem, 8vw, 7rem) max(1.25rem, calc((100% - var(--max)) / 2));
}

.section-dark {
  color: var(--paper);
  background:
    radial-gradient(circle at 18% 8%, rgba(37, 99, 235, 0.28), transparent 38rem),
    radial-gradient(circle at 88% 18%, rgba(20, 184, 166, 0.20), transparent 34rem),
    radial-gradient(circle at 60% 100%, rgba(217, 70, 119, 0.16), transparent 40rem),
    var(--ink);
}

/* Fine technical grid overlay on dark sections */
.section-dark::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  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: 54px 54px;
  mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
}

.section-dark > * {
  position: relative;
  z-index: 1;
}

.section-light {
  background: var(--mist);
}

.section-white {
  background: var(--paper);
}

.section-muted {
  background: linear-gradient(180deg, #eef4f3, #e7eef0);
}

/* =========================================================================
   Typography
   ========================================================================= */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1rem;
  padding: 0.32rem 0.7rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--teal) 32%, transparent);
  background: color-mix(in srgb, var(--teal) 10%, transparent);
  color: var(--teal);
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--teal) 22%, transparent);
}

.section-dark .eyebrow {
  border-color: rgba(163, 230, 53, 0.3);
  background: rgba(163, 230, 53, 0.1);
  color: var(--lime);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-display);
  line-height: 1.06;
  letter-spacing: -0.02em;
  font-weight: 600;
}

h1,
h2,
h3,
p {
  overflow-wrap: break-word;
}

h1 {
  max-width: 15ch;
  font-size: clamp(2.6rem, 6vw, 5.4rem);
  letter-spacing: -0.035em;
}

h2 {
  max-width: 16ch;
  font-size: clamp(2rem, 4vw, 3.6rem);
  letter-spacing: -0.03em;
}

h3 {
  font-size: 1.14rem;
  letter-spacing: -0.01em;
}

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

/* =========================================================================
   Hero
   ========================================================================= */
.hero {
  min-height: min(92vh, 860px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 1.05fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 4rem);
  padding-top: clamp(3.5rem, 7vw, 5.5rem);
  padding-bottom: clamp(3.5rem, 6vw, 5rem);
}

.hero-lede {
  max-width: 40rem;
  margin: 1.5rem 0 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: clamp(1.06rem, 1.6vw, 1.3rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2.2rem;
}

.button {
  position: relative;
  display: inline-flex;
  min-height: 3.15rem;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0 1.5rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.98rem;
  letter-spacing: -0.01em;
  text-align: center;
  cursor: pointer;
  overflow: hidden;
  transition: transform 200ms var(--ease), box-shadow 200ms var(--ease), background 200ms var(--ease), border-color 200ms var(--ease);
}

.button:hover {
  transform: translateY(-2px);
}

.button:active {
  transform: translateY(0);
}

.button-primary {
  color: var(--ink);
  background: var(--grad-brand);
  box-shadow: 0 14px 34px rgba(163, 230, 53, 0.28), inset 0 0 0 1px rgba(255, 255, 255, 0.28);
}

/* Moving sheen on primary buttons */
.button-primary::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 30%, rgba(255, 255, 255, 0.55) 50%, transparent 70%);
  transform: translateX(-120%);
  transition: transform 700ms var(--ease);
}

.button-primary:hover {
  box-shadow: 0 20px 46px rgba(163, 230, 53, 0.36), inset 0 0 0 1px rgba(255, 255, 255, 0.35);
}

.button-primary:hover::after {
  transform: translateX(120%);
}

.button-secondary {
  color: var(--paper);
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(6px);
}

.button-secondary:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.35);
}

.trust-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 2.2rem 0 0;
  padding: 0;
  list-style: none;
}

.trust-list li {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.85rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.82);
  background: rgba(255, 255, 255, 0.05);
  font-size: 0.86rem;
}

.trust-list li::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--grad-cool);
}

.hero-visual {
  position: relative;
  margin: 0;
  perspective: 1400px;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: -2.5rem -1.5rem;
  border-radius: 30px;
  background:
    radial-gradient(circle at 30% 20%, rgba(37, 99, 235, 0.4), transparent 60%),
    radial-gradient(circle at 80% 80%, rgba(217, 70, 119, 0.3), transparent 60%);
  filter: blur(38px);
  opacity: 0.85;
  z-index: 0;
}

.hero-visual::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 20px;
  padding: 1px;
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.45), rgba(255, 255, 255, 0.04) 40%, rgba(217, 70, 119, 0.35));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  z-index: 2;
  pointer-events: none;
}

.hero-visual img {
  position: relative;
  z-index: 1;
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
}

/* Floating glass stat badge over the hero visual */
.hero-badge {
  position: absolute;
  z-index: 3;
  display: grid;
  gap: 0.15rem;
  padding: 0.85rem 1.05rem;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(14, 20, 27, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-md);
}

.hero-badge strong {
  font-family: var(--font-display);
  font-size: 1.25rem;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-badge span {
  font-size: 0.76rem;
  color: rgba(255, 255, 255, 0.7);
}

.hero-badge.badge-a {
  left: -1.1rem;
  bottom: 2.2rem;
}

.hero-badge.badge-b {
  right: -0.6rem;
  top: 1.8rem;
}

/* =========================================================================
   Section intro
   ========================================================================= */
.section-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(18rem, 1.15fr);
  gap: 2rem;
  align-items: end;
  margin-bottom: clamp(2.2rem, 4vw, 3.2rem);
}

.section-intro.wide h2 {
  max-width: 20ch;
}

.section-intro > p:not(.eyebrow) {
  grid-column: 2;
  max-width: 42rem;
  margin: 0.85rem 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

/* =========================================================================
   Card grids
   ========================================================================= */
.problem-grid,
.card-grid,
.impact-grid,
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.1rem;
}

/* Gradient-hairline card surface (works on light sections) */
.problem-grid article,
.card,
.why-grid article,
.use-case-list article {
  position: relative;
  min-height: 100%;
  padding: 1.6rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background:
    linear-gradient(var(--paper), var(--paper)) padding-box,
    linear-gradient(150deg, var(--line-strong), rgba(220, 227, 234, 0.2) 45%) border-box;
  box-shadow: var(--shadow-sm);
  transition: transform 260ms var(--ease), box-shadow 260ms var(--ease);
}

.problem-grid article:hover,
.card:hover,
.why-grid article:hover,
.use-case-list article:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.problem-grid article,
.why-grid article {
  background:
    linear-gradient(180deg, #fff, #fbfcfd) padding-box,
    linear-gradient(150deg, var(--line-strong), rgba(220, 227, 234, 0.2) 45%) border-box;
}

.problem-grid span,
.process-steps .step-num {
  display: inline-grid;
  place-items: center;
  width: 2.6rem;
  height: 2.6rem;
  margin-bottom: 1.25rem;
  border-radius: 12px;
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--blue);
  background: color-mix(in srgb, var(--blue) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--blue) 22%, transparent);
}

.problem-grid h3,
.card h3,
.why-grid h3,
.use-case-list h3,
.faq h3 {
  letter-spacing: -0.015em;
}

.problem-grid p,
.card p,
.why-grid p,
.use-case-list p,
.faq p {
  margin: 0.7rem 0 0;
  color: var(--muted);
}

.card ul {
  display: grid;
  gap: 0.55rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 0.92rem;
}

.card li {
  position: relative;
  padding-left: 1rem;
}

.card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--grad-cool);
}

/* Service cards: icon + top accent */
.card {
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: var(--grad-line);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 320ms var(--ease);
}

.card:hover::before {
  transform: scaleX(1);
}

.card-icon {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  margin-bottom: 1.15rem;
  border-radius: 14px;
  color: var(--blue);
  background: linear-gradient(145deg, color-mix(in srgb, var(--blue) 12%, #fff), color-mix(in srgb, var(--teal) 10%, #fff));
  border: 1px solid var(--line);
}

.card-icon svg {
  width: 1.5rem;
  height: 1.5rem;
}

/* =========================================================================
   Use cases
   ========================================================================= */
.use-case-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.1rem;
}

.use-case-list article {
  display: grid;
  gap: 0.35rem;
}

.use-case-list h3 {
  margin-bottom: 0.5rem;
}

.use-case-list p {
  margin: 0;
  padding-left: 1.1rem;
  position: relative;
}

.use-case-list p::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--grad-cool);
}

.use-case-list strong {
  color: var(--ink);
  font-weight: 650;
}

/* =========================================================================
   Process timeline (dark)
   ========================================================================= */
.process-steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-steps li {
  position: relative;
  padding: 1.4rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.045);
  backdrop-filter: blur(4px);
  transition: transform 260ms var(--ease), background 260ms var(--ease), border-color 260ms var(--ease);
}

.process-steps li:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(163, 230, 53, 0.3);
}

/* connector line between steps */
.process-steps li:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 2.6rem;
  right: -0.6rem;
  width: 1.2rem;
  height: 2px;
  background: linear-gradient(90deg, rgba(163, 230, 53, 0.6), transparent);
}

.process-steps .step-num {
  color: var(--lime);
  background: rgba(163, 230, 53, 0.12);
  border-color: rgba(163, 230, 53, 0.3);
}

.process-steps h3 {
  color: #fff;
}

.process-steps p {
  margin: 0.7rem 0 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.93rem;
}

/* =========================================================================
   Impact grid
   ========================================================================= */
.impact-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.impact-grid div {
  position: relative;
  min-height: 9rem;
  padding: 1.4rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #fff, var(--mist));
  overflow: hidden;
  transition: transform 260ms var(--ease), box-shadow 260ms var(--ease);
}

.impact-grid div:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.impact-grid div::after {
  content: "";
  position: absolute;
  right: -2rem;
  bottom: -2rem;
  width: 6rem;
  height: 6rem;
  border-radius: 50%;
  background: var(--grad-cool);
  opacity: 0.08;
}

.impact-grid strong {
  display: block;
  margin-bottom: 0.5rem;
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  background: var(--grad-cool);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.impact-grid span {
  color: var(--ink-soft);
  font-size: 0.98rem;
}

/* =========================================================================
   Why + FAQ
   ========================================================================= */
.why-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.faq-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  align-content: start;
}

details {
  padding: 1.2rem 1.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow-sm);
  transition: border-color 200ms var(--ease), box-shadow 200ms var(--ease);
}

details[open] {
  border-color: color-mix(in srgb, var(--teal) 40%, var(--line));
  box-shadow: var(--shadow-md);
}

summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
  color: var(--ink-soft);
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: "";
  flex: none;
  width: 0.7rem;
  height: 0.7rem;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
  transition: transform 240ms var(--ease);
}

details[open] summary::after {
  transform: rotate(-135deg);
}

/* =========================================================================
   Contact
   ========================================================================= */
.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(20rem, 1fr);
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: start;
}

.contact-copy p:not(.eyebrow) {
  max-width: 35rem;
  color: rgba(255, 255, 255, 0.76);
  font-size: 1.1rem;
}

.contact-email {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.2rem;
  color: var(--lime);
  font-family: var(--font-display);
  font-weight: 600;
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  padding: 1.6rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.04));
  box-shadow: var(--shadow-lg);
}

.form-row {
  display: grid;
  gap: 0.4rem;
}

.form-row.full,
.contact-form .button,
.form-note,
.form-success,
.form-error {
  grid-column: 1 / -1;
}

/* honeypot — hidden from humans, visible to naive bots */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

label {
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.86rem;
  font-weight: 600;
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-sm);
  color: var(--paper);
  background: rgba(11, 15, 20, 0.55);
  padding: 0.85rem 0.95rem;
  transition: border-color 180ms var(--ease), box-shadow 180ms var(--ease), background 180ms var(--ease);
}

input::placeholder,
textarea::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: color-mix(in srgb, var(--teal) 55%, transparent);
  box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.22);
  background: rgba(11, 15, 20, 0.7);
}

textarea {
  resize: vertical;
  min-height: 7rem;
}

select option {
  color: var(--ink);
}

.contact-form .button {
  margin-top: 0.25rem;
}

.button:disabled {
  cursor: wait;
  opacity: 0.74;
}

.form-note,
.form-success,
.form-error {
  margin: 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.86rem;
}

.form-error,
.form-success {
  padding: 0.95rem 1.1rem;
  border-radius: var(--radius-sm);
  color: #fff;
}

.form-success {
  border: 1px solid rgba(163, 230, 53, 0.45);
  background: rgba(163, 230, 53, 0.12);
}

.form-error {
  border: 1px solid rgba(217, 70, 119, 0.5);
  background: rgba(217, 70, 119, 0.14);
}

/* =========================================================================
   Footer
   ========================================================================= */
.footer {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr 1fr;
  gap: 2.5rem;
  padding: 3rem max(1.25rem, calc((100% - var(--max)) / 2)) 2.5rem;
  color: rgba(255, 255, 255, 0.7);
  background: #070a0e;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer .brand {
  color: var(--paper);
}

.footer p {
  max-width: 24rem;
  margin: 1rem 0 0;
  font-size: 0.95rem;
}

.footer nav,
.footer-legal {
  display: grid;
  gap: 0.6rem;
  align-content: start;
  font-size: 0.92rem;
}

.footer nav a:hover {
  color: var(--lime);
}

.footer-legal a:hover {
  color: var(--lime);
}

.footer-legal span {
  color: rgba(255, 255, 255, 0.5);
}

/* =========================================================================
   Legal / policy pages
   ========================================================================= */
.legal-hero {
  padding-top: clamp(3rem, 6vw, 4.5rem);
  padding-bottom: clamp(2.2rem, 4vw, 3.2rem);
}

.legal-hero h1 {
  max-width: 22ch;
  font-size: clamp(2.1rem, 4.5vw, 3.4rem);
}

.legal-hero .legal-updated {
  margin: 1.25rem 0 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.95rem;
}

.legal-body {
  padding-top: clamp(2.5rem, 5vw, 4rem);
  padding-bottom: clamp(3rem, 6vw, 5rem);
}

.legal-prose {
  max-width: 52rem;
  margin: 0 auto;
}

.legal-prose .legal-intro {
  margin: 0 0 2rem;
  color: var(--ink-soft);
  font-size: 1.08rem;
}

.legal-prose h2 {
  max-width: none;
  margin: 2.6rem 0 0;
  padding-top: 1.6rem;
  border-top: 1px solid var(--line);
  font-size: clamp(1.35rem, 2.4vw, 1.7rem);
  letter-spacing: -0.02em;
}

.legal-prose h2:first-of-type {
  border-top: 0;
  padding-top: 0;
  margin-top: 0;
}

.legal-prose h3 {
  margin: 1.6rem 0 0;
  font-size: 1.08rem;
}

.legal-prose p {
  margin: 0.9rem 0 0;
  color: var(--muted);
}

.legal-prose ul {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.7rem;
  color: var(--muted);
}

.legal-prose li {
  position: relative;
  padding-left: 1.15rem;
}

.legal-prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--grad-cool);
}

.legal-prose strong {
  color: var(--ink);
  font-weight: 650;
}

.legal-prose a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.legal-contact {
  margin-top: 2.4rem;
  padding: 1.4rem 1.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #fff, var(--mist));
  box-shadow: var(--shadow-sm);
}

.legal-contact p {
  margin: 0.35rem 0 0;
  color: var(--ink-soft);
}

.legal-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 2.6rem;
  color: var(--blue);
  font-family: var(--font-display);
  font-weight: 600;
}

/* =========================================================================
   Scroll reveal
   ========================================================================= */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 620ms var(--ease), transform 620ms var(--ease);
  will-change: opacity, transform;
}

[data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* stagger children when a grid is revealed */
[data-reveal-group].is-in > * {
  animation: rise 620ms var(--ease) both;
}

[data-reveal-group].is-in > *:nth-child(2) { animation-delay: 70ms; }
[data-reveal-group].is-in > *:nth-child(3) { animation-delay: 140ms; }
[data-reveal-group].is-in > *:nth-child(4) { animation-delay: 210ms; }
[data-reveal-group].is-in > *:nth-child(5) { animation-delay: 280ms; }
[data-reveal-group].is-in > *:nth-child(6) { animation-delay: 350ms; }

@keyframes rise {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: none; }
}

/* =========================================================================
   Responsive
   ========================================================================= */
@media (max-width: 980px) {
  .nav-cta {
    display: none;
  }

  .hero,
  .contact,
  .section-intro {
    grid-template-columns: 1fr;
  }

  .section-intro {
    align-items: start;
    gap: 1rem;
  }

  .section-intro > p:not(.eyebrow) {
    grid-column: auto;
  }

  h1 {
    max-width: 16ch;
  }

  h2 {
    max-width: 20ch;
  }

  .problem-grid,
  .card-grid,
  .impact-grid,
  .why-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .process-steps li:not(:last-child)::after {
    display: none;
  }

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

@media (max-width: 760px) {
  .menu-toggle {
    display: block;
  }

  .nav {
    min-height: 66px;
  }

  .nav-menu {
    position: fixed;
    inset: 66px 0 auto 0;
    display: none;
    margin: 0;
    padding: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(9, 12, 17, 0.97);
    backdrop-filter: blur(20px);
  }

  .nav-menu.is-open {
    display: grid;
    gap: 0.35rem;
  }

  .nav-menu a {
    padding: 0.95rem;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.05);
  }

  .nav-menu a::after {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-top: 3rem;
  }

  h1 {
    font-size: clamp(2.5rem, 12vw, 3.6rem);
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .hero-badge {
    display: none;
  }

  .problem-grid,
  .card-grid,
  .use-case-list,
  .impact-grid,
  .why-grid,
  .faq-list,
  .contact-form,
  .footer {
    grid-template-columns: 1fr;
  }

  .process-steps {
    grid-template-columns: 1fr;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}