:root {
  --bg: #f5f6f8;
  --bg-tint: #eceef2;
  --bg-dark: #121417;
  --ink: #14171c;
  --ink-soft: #3d4450;
  --muted: #6b7380;
  --line: rgba(20, 23, 28, 0.1);
  --line-strong: rgba(20, 23, 28, 0.18);
  --surface: rgba(255, 255, 255, 0.72);
  --surface-solid: #ffffff;
  --accent: #2563eb;
  --accent-soft: rgba(37, 99, 235, 0.1);
  --accent-ink: #ffffff;
  --warm: #ff6a3d;
  --font-display: "Bricolage Grotesque", system-ui, sans-serif;
  --font-body: "Source Sans 3", system-ui, sans-serif;
  --pad: clamp(1.25rem, 4vw, 3.75rem);
  --max: 1180px;
  --radius: 1.25rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --header-h: 4.25rem;
  --shadow: 0 18px 50px rgba(20, 23, 28, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--font-body);
  font-size: clamp(1.02rem, 0.96rem + 0.25vw, 1.125rem);
  line-height: 1.55;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

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

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

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.ambient {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

.ambient__wash {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(37, 99, 235, 0.12), transparent 55%),
    radial-gradient(ellipse 60% 45% at 90% 10%, rgba(255, 106, 61, 0.1), transparent 50%),
    linear-gradient(180deg, #f8f9fb 0%, var(--bg) 40%, #f0f2f6 100%);
}

.ambient__spot {
  position: absolute;
  width: 42vw;
  height: 42vw;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.45;
  animation: drift 14s var(--ease) infinite alternate;
}

.ambient__spot--1 {
  top: 8%;
  right: -8%;
  background: rgba(37, 99, 235, 0.22);
}

.ambient__spot--2 {
  top: 55%;
  left: -12%;
  background: rgba(255, 106, 61, 0.16);
  animation-delay: -6s;
}

@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(-3%, 4%, 0) scale(1.08); }
}

.wrap {
  width: min(100% - (var(--pad) * 2), var(--max));
  margin-inline: auto;
}

.wrap--narrow {
  width: min(100% - (var(--pad) * 2), 760px);
}

/* Header */
.header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header-h);
  padding: 0.75rem var(--pad);
  transition: background 0.35s var(--ease), box-shadow 0.35s var(--ease), backdrop-filter 0.35s var(--ease);
}

.header.is-scrolled {
  background: rgba(245, 246, 248, 0.82);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--line);
}

.logo {
  position: relative;
  z-index: 60;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.04em;
}

.nav {
  display: none;
  align-items: center;
  gap: 1.5rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
  font-weight: 500;
}

.nav a {
  position: relative;
  transition: color 0.25s var(--ease);
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.3em;
  width: 100%;
  height: 1.5px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}

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

.nav a:hover::after {
  transform: scaleX(1);
}

.header__right {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  z-index: 60;
}

.header__right .btn--sm {
  display: none;
}

.menu-btn {
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface-solid);
  display: inline-grid;
  place-items: center;
  cursor: pointer;
}

.menu-btn__lines,
.menu-btn__lines::before,
.menu-btn__lines::after {
  display: block;
  width: 1rem;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.menu-btn__lines {
  position: relative;
}

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

.menu-btn__lines::before { top: -5px; }
.menu-btn__lines::after { top: 5px; }

body.menu-open .menu-btn__lines {
  background: transparent;
}

body.menu-open .menu-btn__lines::before {
  top: 0;
  transform: rotate(45deg);
}

body.menu-open .menu-btn__lines::after {
  top: 0;
  transform: rotate(-45deg);
}

@media (max-width: 959px) {
  .nav {
    position: fixed;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    gap: 1.4rem;
    padding: var(--pad);
    background: rgba(245, 246, 248, 0.96);
    backdrop-filter: blur(18px);
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 7vw, 2.6rem);
    font-weight: 650;
    letter-spacing: -0.03em;
    color: var(--ink);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s;
  }

  body.menu-open .nav {
    opacity: 1;
    visibility: visible;
    transform: none;
  }
}

@media (min-width: 960px) {
  .nav {
    display: flex;
  }

  .menu-btn {
    display: none;
  }

  .header__right .btn--sm {
    display: inline-flex;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.1rem;
  padding: 0.8rem 1.35rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--sm {
  min-height: 2.55rem;
  padding: 0.55rem 1.05rem;
  font-size: 0.92rem;
}

.btn--primary {
  background: var(--ink);
  color: #fff;
  box-shadow: 0 10px 28px rgba(20, 23, 28, 0.16);
}

.btn--primary:hover {
  background: #000;
}

.btn--dark {
  background: var(--ink);
  color: #fff;
}

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

.btn--ghost:hover {
  border-color: var(--ink);
  background: rgba(255, 255, 255, 0.55);
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  align-content: center;
  padding: calc(var(--header-h) + 2.5rem) var(--pad) 5rem;
}

.hero__stage {
  width: min(100%, 920px);
}

.brand-mark {
  margin: 0 0 1.1rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.15rem, 2.2vw, 1.45rem);
  letter-spacing: -0.04em;
  color: var(--accent);
}

.hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.55rem, 8vw, 5.6rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
}

.hero h1 .line {
  display: block;
}

.lead,
.section__lead {
  max-width: 36rem;
  color: var(--ink-soft);
}

.lead {
  margin: 1.5rem 0 0;
  font-size: clamp(1.08rem, 1.7vw, 1.28rem);
  line-height: 1.5;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.trust {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.35rem;
  margin: 1.75rem 0 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 0.95rem;
}

.trust li {
  position: relative;
  padding-left: 0.9rem;
}

.trust li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.35rem;
  height: 0.35rem;
  border-radius: 50%;
  background: var(--accent);
}

.hero__hint {
  position: absolute;
  left: var(--pad);
  bottom: 1.75rem;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--muted);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  animation: bob 2.2s var(--ease) infinite;
}

@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(5px); }
}

/* Sections */
.section {
  padding: clamp(4.5rem, 10vw, 7.5rem) 0;
}

.section--tint {
  background: color-mix(in srgb, var(--bg-tint) 88%, white);
}

.section--dark {
  background: var(--bg-dark);
  color: #f3f4f6;
}

.section--dark .section__lead,
.section--dark .eco-note {
  color: rgba(243, 244, 246, 0.72);
}

.section__head {
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.section__head--split {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 860px) {
  .section__head--split {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: end;
    gap: 2.5rem;
  }

  .section__head--split .section__lead {
    margin: 0;
  }
}

.eyebrow {
  margin: 0 0 0.85rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow--on-dark {
  color: #8eb6ff;
}

.section h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 4.6vw, 3.55rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.section__lead {
  margin: 1rem 0 0;
}

/* Audience rail */
.rail {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

@media (min-width: 800px) {
  .rail {
    grid-template-columns: repeat(3, 1fr);
  }
}

.rail__item {
  padding: 1.5rem 0 0.25rem;
  border-bottom: 1px solid var(--line);
}

@media (min-width: 800px) {
  .rail__item {
    padding: 1.75rem 1.5rem 0.25rem 0;
    border-bottom: 0;
    border-right: 1px solid var(--line);
  }

  .rail__item:last-child {
    border-right: 0;
    padding-right: 0;
  }

  .rail__item:not(:first-child) {
    padding-left: 1.5rem;
  }
}

.rail__item span {
  display: block;
  margin-bottom: 1.1rem;
  color: var(--muted);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
}

.rail__item h3,
.outcome h3,
.plan h3,
.timeline__item h3,
.case h3 {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.03em;
  font-size: 1.35rem;
}

.rail__item p,
.outcome p,
.plan__text,
.timeline__item p,
.case p {
  margin: 0;
  color: var(--muted);
}

/* Outcomes */
.outcomes {
  display: grid;
  gap: 1rem;
}

@media (min-width: 800px) {
  .outcomes {
    grid-template-columns: repeat(3, 1fr);
  }
}

.outcome {
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  backdrop-filter: blur(8px);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.outcome:hover {
  border-color: var(--line-strong);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

/* Plans */
.plans {
  display: grid;
  gap: 1rem;
}

@media (min-width: 860px) {
  .plans {
    grid-template-columns: 1fr 1fr;
    gap: 1.15rem;
  }
}

.plan {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
  padding: clamp(1.4rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 0.25rem);
  background: var(--surface-solid);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.7) inset;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s var(--ease);
}

.plan:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--line-strong);
}

.plan--featured {
  background:
    linear-gradient(160deg, rgba(37, 99, 235, 0.08), transparent 42%),
    var(--surface-solid);
  border-color: rgba(37, 99, 235, 0.28);
}

.plan__badge {
  position: absolute;
  top: 1.1rem;
  right: 1.1rem;
  margin: 0;
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.plan__index {
  margin: 0 0 0.85rem;
  color: var(--muted);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
}

.plan__tag {
  margin: 0.35rem 0 0;
  color: var(--ink);
  font-weight: 600;
}

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

.plan li {
  position: relative;
  padding-left: 1rem;
  color: var(--ink-soft);
}

.plan li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 0.35rem;
  height: 0.35rem;
  border-radius: 50%;
  background: var(--accent);
}

.plan__link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  color: var(--accent);
}

.plan__link::after {
  content: "→";
  transition: transform 0.25s var(--ease);
}

.plan__link:hover::after {
  transform: translateX(3px);
}

/* Ecosystem marquee */
.marquee {
  margin-top: 0.5rem;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.marquee__track {
  display: flex;
  width: max-content;
  gap: 0.75rem;
  animation: marquee 32s linear infinite;
}

.marquee__track span {
  flex: none;
  padding: 0.85rem 1.2rem;
  border: 1px solid rgba(243, 244, 246, 0.14);
  border-radius: 999px;
  color: #f3f4f6;
  font-weight: 500;
  white-space: nowrap;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.eco-note {
  margin: 1.75rem auto 0;
  color: var(--muted);
}

/* Timeline */
.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
  counter-reset: none;
}

@media (min-width: 900px) {
  .timeline {
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    position: relative;
  }

  .timeline::before {
    content: "";
    position: absolute;
    top: 0.85rem;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--line-strong);
  }
}

.timeline__item {
  position: relative;
  padding: 0.25rem 0 0;
}

@media (min-width: 900px) {
  .timeline__item {
    padding: 2.25rem 1.25rem 0 0;
  }
}

.timeline__num {
  display: inline-grid;
  place-items: center;
  width: 1.7rem;
  height: 1.7rem;
  margin-bottom: 1rem;
  border-radius: 50%;
  background: var(--surface-solid);
  border: 1px solid var(--line-strong);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 700;
  position: relative;
  z-index: 1;
}

/* Cases */
.cases {
  display: grid;
  gap: 1rem;
}

.case {
  display: grid;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 0.15rem);
  background: var(--surface-solid);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
  transform-style: preserve-3d;
}

.case:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
  border-color: var(--line-strong);
}

@media (min-width: 760px) {
  .case {
    grid-template-columns: minmax(180px, 32%) 1fr;
    min-height: 200px;
  }
}

.case__media {
  position: relative;
  min-height: 150px;
  background:
    radial-gradient(circle at 30% 30%, var(--a), transparent 50%),
    radial-gradient(circle at 75% 70%, var(--b), transparent 55%),
    linear-gradient(145deg, #e8ebf1, #f7f8fa);
  overflow: hidden;
}

.case__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255, 255, 255, 0.35), transparent 70%);
  transform: translateX(-120%);
  transition: transform 0.7s var(--ease);
}

.case:hover .case__media::after {
  transform: translateX(120%);
}

.case__index {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 2rem;
  letter-spacing: -0.04em;
  color: rgba(20, 23, 28, 0.2);
}

.case__body {
  display: grid;
  align-content: center;
  gap: 0.45rem;
  padding: clamp(1.2rem, 3vw, 1.85rem);
}

.case__meta {
  margin: 0 !important;
  color: var(--accent) !important;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Contact */
.contact__grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 920px) {
  .contact__grid {
    grid-template-columns: 0.95fr 1.05fr;
    gap: 3rem;
    align-items: start;
  }

  .contact .section__head {
    margin: 0;
    position: sticky;
    top: calc(var(--header-h) + 1rem);
  }
}

.contact__aside {
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.form {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: 1fr;
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 0.2rem);
  background: var(--surface-solid);
  box-shadow: var(--shadow);
}

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

  .form__full {
    grid-column: 1 / -1;
  }
}

.form label {
  display: grid;
  gap: 0.4rem;
}

.form label span {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-soft);
}

.form input,
.form textarea {
  width: 100%;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line-strong);
  border-radius: 0.85rem;
  background: #fbfbfc;
  outline: none;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease);
}

.form input::placeholder,
.form textarea::placeholder {
  color: #9aa3af;
}

.form input:focus,
.form textarea:focus {
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.form textarea {
  resize: vertical;
  min-height: 130px;
}

.form__note {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
}

.form__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem;
}

.form__status {
  margin: 0;
  min-height: 1.4em;
  color: var(--accent);
  font-size: 0.95rem;
  font-weight: 500;
}

.form__status.is-error {
  color: #d9483f;
}

/* Footer */
.footer {
  padding: 2.25rem 0 2.75rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.25rem;
}

.footer__brand {
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.03em;
}

.footer__legal {
  display: grid;
  gap: 0.3rem;
}

.footer__legal p {
  margin: 0;
}

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

/* Reveal */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
}

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

[data-reveal-delay="1"] { transition-delay: 0.07s; }
[data-reveal-delay="2"] { transition-delay: 0.14s; }
[data-reveal-delay="3"] { transition-delay: 0.21s; }

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

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

  .ambient__spot,
  .hero__hint,
  .marquee__track {
    animation: none !important;
  }

  [data-reveal],
  .case,
  .plan,
  .outcome {
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}