/* 1. Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

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

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

button,
a {
  touch-action: manipulation;
}

/* 2. Design tokens */
:root {
  --color-primary: #008bf8;
  --color-primary-dark: #0866be;
  --color-ink: #172a3a;
  --color-text: #263849;
  --color-muted: #617385;
  --color-soft: #f5f8fb;
  --color-soft-blue: #eaf6ff;
  --color-surface: #ffffff;
  --color-border: #dbe7ef;
  --color-olive: #575a4b;
  --color-cream: #f2f6d0;
  --color-white: #ffffff;

  --font-sans: Aptos, "Segoe UI", Arial, sans-serif;
  --font-mono: "Aptos Mono", Consolas, "Liberation Mono", monospace;

  --container: min(1180px, calc(100% - 40px));

  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4rem;
  --space-8: 5rem;

  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;

  --shadow-sm: 0 10px 26px rgba(23, 42, 58, 0.08);
  --shadow-md: 0 24px 58px rgba(23, 42, 58, 0.12);

  --transition-fast: 160ms ease;
  --transition-normal: 260ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

/* 3. Base */
body {
  min-width: 320px;
  color: var(--color-text);
  background: var(--color-white);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

body.nav-open {
  overflow: hidden;
}

:focus-visible {
  outline: 3px solid rgba(0, 139, 248, 0.42);
  outline-offset: 4px;
  border-radius: var(--radius-xs);
}

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

/* 4. Typography */
h1,
h2,
h3 {
  color: var(--color-ink);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: 0;
  text-wrap: balance;
}

h1 {
  max-width: 15ch;
  font-size: clamp(2.5rem, 4.25vw, 4.05rem);
}

h2 {
  font-size: clamp(2rem, 3.6vw, 3.45rem);
}

h3 {
  font-size: clamp(1.08rem, 1.4vw, 1.28rem);
}

p {
  color: var(--color-muted);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
  color: var(--color-primary);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  line-height: 1.2;
  text-transform: uppercase;
}

.eyebrow > span {
  width: 24px;
  height: 2px;
  flex: 0 0 auto;
  background: currentColor;
}

.eyebrow-light {
  color: #bfe7ff;
}

/* 5. Layout */
.container {
  width: var(--container);
  margin-inline: auto;
}

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

.section-small {
  position: relative;
  padding-block: var(--space-6);
}

.section-soft {
  background: linear-gradient(180deg, #f8fbfd 0%, #eef7fc 100%);
}

.section-heading {
  max-width: 620px;
}

.section-heading > p:not(.eyebrow) {
  margin-top: var(--space-4);
  font-size: 1.04rem;
}

.section-heading .text-link {
  margin-top: var(--space-4);
}

.section-heading-wide {
  max-width: 880px;
}

/* 6. Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.82);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(14px);
  transition:
    background var(--transition-normal),
    border-color var(--transition-normal),
    box-shadow var(--transition-normal);
}

.site-header.is-scrolled,
.site-header.nav-is-open {
  background: rgba(255, 255, 255, 0.95);
  border-bottom-color: rgba(219, 231, 239, 0.9);
  box-shadow: 0 10px 30px rgba(23, 42, 58, 0.06);
}

.scroll-progress {
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  overflow: hidden;
  background: transparent;
}

.scroll-progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), #4ec8e5);
  transform: scaleX(0);
  transform-origin: left;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: var(--space-5);
}

.brand {
  width: 168px;
  flex: 0 0 auto;
}

.brand img {
  width: 100%;
  height: auto;
}

/* 7. Navigation */
.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.1vw, 1.75rem);
}

.main-nav > a {
  position: relative;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: #405568;
  font-size: 0.94rem;
  font-weight: 700;
  transition: color var(--transition-fast);
}

.main-nav > a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 6px;
  left: 0;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-normal);
}

.main-nav > a:hover,
.main-nav > a[aria-current="page"] {
  color: var(--color-ink);
}

.main-nav > a:hover::after,
.main-nav > a[aria-current="page"]::after {
  transform: scaleX(1);
  transform-origin: left;
}

.main-nav > .nav-cta {
  min-height: 42px;
  padding: 0.7rem 1rem;
  color: var(--color-white);
  background: var(--color-ink);
  border: 1px solid rgba(23, 42, 58, 0.08);
  border-radius: 999px;
  box-shadow: 0 8px 20px rgba(23, 42, 58, 0.12);
}

.main-nav > .nav-cta::after {
  display: none;
}

.main-nav > .nav-cta:hover {
  color: var(--color-white);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  width: 48px;
  height: 48px;
  padding: 12px;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--color-ink);
  border-radius: 2px;
  transition:
    opacity var(--transition-fast),
    transform var(--transition-fast);
}

/* 8. Buttons */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.78rem 1.15rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
  transition:
    background var(--transition-normal),
    border-color var(--transition-normal),
    box-shadow var(--transition-normal),
    color var(--transition-normal),
    transform var(--transition-normal);
}

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

.button-primary {
  color: var(--color-white);
  background: var(--color-primary);
  box-shadow: 0 12px 28px rgba(0, 139, 248, 0.22);
}

.button-primary:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 16px 34px rgba(0, 139, 248, 0.28);
}

.button-ghost {
  color: var(--color-ink);
  background: var(--color-white);
  border-color: var(--color-border);
}

.button-ghost:hover {
  border-color: #b9cddd;
}

.button-light {
  color: var(--color-ink);
  background: var(--color-white);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.12);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-ink);
  font-weight: 800;
}

.text-link span {
  transition: transform var(--transition-fast);
}

.text-link:hover span {
  transform: translateX(4px);
}

/* 9. Hero */
.hero {
  padding-block: clamp(4.25rem, 5.2vw, 4.875rem) clamp(3.5rem, 4.4vw, 4rem);
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(234, 246, 255, 0.48), rgba(255, 255, 255, 0) 62%),
    var(--color-white);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.86fr);
  align-items: center;
  gap: clamp(2.25rem, 5vw, 5rem);
}

.hero-copy {
  max-width: 760px;
}

.hero-text {
  max-width: 620px;
  margin-top: var(--space-4);
  font-size: clamp(1.05rem, 1.4vw, 1.22rem);
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-5);
}

.hero-visual {
  perspective: 1100px;
}

.website-mockup {
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transform: translate3d(0, 0, 0) rotate(-0.8deg);
  transition: transform var(--transition-normal);
  will-change: transform;
}

.browser-bar,
.browser-top {
  display: flex;
  align-items: center;
  height: 52px;
  gap: 8px;
  padding-inline: var(--space-4);
  background: #f7fafc;
  border-bottom: 1px solid var(--color-border);
}

.browser-bar > span,
.browser-top > span {
  width: 9px;
  height: 9px;
  border-radius: 999px;
}

.browser-bar > span:nth-child(1),
.browser-top > span:nth-child(1) {
  background: #f283b6;
}

.browser-bar > span:nth-child(2),
.browser-top > span:nth-child(2) {
  background: var(--color-cream);
  border: 1px solid #d6ddb4;
}

.browser-bar > span:nth-child(3),
.browser-top > span:nth-child(3) {
  background: #52bed6;
}

.browser-address,
.browser-url {
  width: min(270px, 62%);
  margin-left: var(--space-1);
  padding: 0.46rem 0.75rem;
  color: #8a9baa;
  background: var(--color-white);
  border: 1px solid #dce7ef;
  border-radius: var(--radius-xs);
  font-size: 0.78rem;
}

.mockup-page {
  padding: var(--space-4);
}

.mockup-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.mockup-brand {
  width: 78px;
  height: 14px;
  background: linear-gradient(90deg, var(--color-primary), #4cbdd3);
  border-radius: 999px;
}

.mockup-menu {
  display: flex;
  gap: 10px;
}

.mockup-menu i {
  width: 32px;
  height: 6px;
  background: #d8e4eb;
  border-radius: 999px;
}

.mockup-main {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  align-items: center;
  gap: var(--space-5);
  padding-block: clamp(1.75rem, 3vw, 2.5rem) var(--space-4);
}

.mockup-copy span {
  display: block;
  border-radius: 999px;
}

.mockup-kicker {
  width: 82px;
  height: 7px;
  margin-bottom: var(--space-3);
  background: #cdeffc;
}

.mockup-title {
  width: 70%;
  height: 13px;
  margin-top: 9px;
  background: var(--color-ink);
}

.mockup-title-long {
  width: 96%;
}

.mockup-line {
  width: 88%;
  height: 7px;
  margin-top: var(--space-4);
  background: #dbe5eb;
}

.mockup-line-short {
  width: 58%;
  margin-top: 8px;
}

.mockup-copy .mockup-cta {
  width: 104px;
  height: 30px;
  margin-top: var(--space-4);
  background: var(--color-primary);
  border-radius: var(--radius-xs);
}

.mockup-media {
  min-height: 154px;
  display: grid;
  place-items: center;
  background:
    linear-gradient(145deg, rgba(0, 139, 248, 0.12), rgba(242, 246, 208, 0.72)),
    #f4fbff;
  border: 1px solid rgba(219, 231, 239, 0.8);
  border-radius: var(--radius-md);
}

.mockup-media img {
  width: min(94px, 50%);
  height: auto;
  filter: drop-shadow(0 20px 24px rgba(23, 42, 58, 0.18));
}

.mockup-panels {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.mockup-panels span {
  min-height: 46px;
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

/* 10. Why Kythex */
.why-section {
  padding-top: var(--space-6);
}

.why-layout {
  display: grid;
  grid-template-columns: 0.88fr 1.12fr;
  align-items: start;
  gap: clamp(2rem, 5vw, 4.75rem);
}

.why-grid {
  display: grid;
  gap: var(--space-3);
}

.why-card {
  display: grid;
  grid-template-columns: auto 48px minmax(0, 1fr);
  align-items: start;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 20px rgba(23, 42, 58, 0.04);
}

.why-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  color: var(--color-primary);
  background: var(--color-soft-blue);
  border-radius: var(--radius-sm);
}

.why-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.why-card > span {
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 800;
  line-height: 42px;
}

.why-card h3 {
  margin-bottom: var(--space-1);
}

.why-card p {
  grid-column: 3;
}

/* 11. Method */
.method-section {
  overflow: hidden;
}

.method-timeline {
  position: relative;
  margin-top: var(--space-6);
}

.method-track {
  position: absolute;
  top: 31px;
  right: 12.5%;
  left: 12.5%;
  height: 2px;
  overflow: hidden;
  background: #cddde8;
}

.method-track span {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), #4ec8e5);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 900ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

.method-timeline.is-active .method-track span {
  transform: scaleX(1);
}

.method-steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
}

.method-step {
  position: relative;
  padding-top: 70px;
}

.method-step::before {
  content: "";
  position: absolute;
  top: 22px;
  left: 0;
  width: 20px;
  height: 20px;
  margin-left: 2px;
  background: var(--color-white);
  border: 5px solid var(--color-primary);
  border-radius: 999px;
  box-shadow: 0 0 0 6px rgba(0, 139, 248, 0.12);
}

.method-number {
  display: block;
  margin-bottom: var(--space-3);
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-size: clamp(2.15rem, 4vw, 3.7rem);
  font-weight: 800;
  line-height: 0.9;
}

.method-step h3 {
  margin-bottom: var(--space-2);
}

/* 12. Projects */
.projects-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(320px, 0.72fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
}

.projects-copy p:not(.eyebrow) {
  max-width: 560px;
  margin-top: var(--space-4);
}

.projects-copy .text-link {
  margin-top: var(--space-4);
}

.project-slot {
  overflow: hidden;
  min-height: 268px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

.project-slot-top {
  display: flex;
  gap: 8px;
  padding: var(--space-3) var(--space-4);
  background: #f7fafc;
  border-bottom: 1px solid var(--color-border);
}

.project-slot-top span {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: #c7d7e2;
}

.project-slot-body {
  display: grid;
  align-content: center;
  min-height: 218px;
  gap: var(--space-5);
  padding: var(--space-5);
  background:
    linear-gradient(135deg, rgba(0, 139, 248, 0.08), rgba(242, 246, 208, 0.38)),
    #fbfdff;
}

.project-slot-label {
  width: max-content;
  max-width: 100%;
  padding: 0.44rem 0.65rem;
  color: var(--color-primary-dark);
  background: var(--color-white);
  border: 1px solid rgba(0, 139, 248, 0.18);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 800;
}

.project-slot-lines {
  display: grid;
  gap: 10px;
}

.project-slot-lines i {
  display: block;
  height: 10px;
  background: #d7e5ed;
  border-radius: 999px;
}

.project-slot-lines i:nth-child(1) {
  width: 88%;
  background: var(--color-ink);
}

.project-slot-lines i:nth-child(2) {
  width: 68%;
}

.project-slot-lines i:nth-child(3) {
  width: 42%;
}

/* 13. CTA */
.cta-section {
  padding-top: var(--space-4);
}

.cta-card {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  overflow: hidden;
  padding: clamp(2rem, 4vw, 3.25rem);
  color: var(--color-white);
  background: linear-gradient(135deg, #17354d, #235574 62%, #126fae);
  border-radius: var(--radius-sm);
}

.cta-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 180px;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08));
  pointer-events: none;
}

.cta-card > * {
  position: relative;
  z-index: 1;
}

.cta-card h2 {
  max-width: 720px;
  color: var(--color-white);
}

.cta-card p:not(.eyebrow) {
  max-width: 620px;
  margin-top: var(--space-3);
  color: #d9e8f2;
}

.cta-card .button {
  flex: 0 0 auto;
}

/* 14. Footer */
.site-footer {
  padding: var(--space-7) 0 var(--space-5);
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.7fr 0.9fr;
  gap: clamp(2rem, 5vw, 4rem);
}

.footer-brand img {
  width: 178px;
  height: auto;
}

.footer-brand p {
  max-width: 380px;
  margin-top: var(--space-3);
}

.footer-col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.55rem;
  color: var(--color-muted);
}

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

.footer-title {
  margin-bottom: 0.35rem;
  color: var(--color-ink);
  font-weight: 800;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  color: #8393a0;
  border-top: 1px solid var(--color-border);
  font-size: 0.86rem;
}

/* 15. Animations */
.js [data-reveal],
.js [data-stagger] > * {
  opacity: 0;
  transform: translateY(18px);
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
  transition:
    opacity 620ms cubic-bezier(0.2, 0.7, 0.2, 1),
    transform 620ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

.js [data-stagger].is-visible > * {
  opacity: 1;
  transform: none;
  transition:
    opacity 560ms cubic-bezier(0.2, 0.7, 0.2, 1),
    transform 560ms cubic-bezier(0.2, 0.7, 0.2, 1);
  transition-delay: calc(var(--stagger, 0) * 80ms);
}

.page-leave main {
  opacity: 0.55;
  transform: translateY(6px);
  transition:
    opacity var(--transition-fast),
    transform var(--transition-fast);
}

/* 16. Other pages / shared components */
.page-hero {
  background: linear-gradient(180deg, #fff 0%, #f8fbfd 100%);
  border-bottom: 1px solid var(--color-border);
}

.compact-hero {
  padding-block: clamp(4.5rem, 8vw, 7rem);
}

.page-hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: end;
  gap: clamp(2rem, 6vw, 5.5rem);
}

.page-hero h1 {
  max-width: 13ch;
}

.page-hero-grid > p {
  margin-bottom: 0.5rem;
  font-size: 1.08rem;
}

.centered-heading {
  max-width: 920px;
  text-align: center;
}

.centered-heading h2 {
  font-weight: 700;
}

.heading-rule {
  display: block;
  width: 88px;
  height: 4px;
  margin: var(--space-4) auto;
  background: var(--color-ink);
}

.centered-heading p {
  font-size: 1.06rem;
}

.services-intro {
  padding-bottom: var(--space-6);
}

.service-list-section {
  padding-top: var(--space-6);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.service-tile {
  min-height: 300px;
  display: flex;
  flex-direction: column;
  padding: var(--space-5);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: 0 12px 28px rgba(31, 67, 92, 0.04);
  transition:
    border-color var(--transition-normal),
    box-shadow var(--transition-normal),
    transform var(--transition-normal);
}

.service-tile:hover {
  border-color: #bcdcf0;
  box-shadow: var(--shadow-sm);
  transform: translateY(-3px);
}

.service-icon {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  margin-bottom: var(--space-4);
  color: var(--color-primary);
  background: var(--color-soft-blue);
  border-radius: var(--radius-sm);
}

.service-icon svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

.service-tile p {
  flex: 1;
  margin-top: var(--space-2);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
  color: var(--color-primary);
  font-weight: 800;
}

.card-link span {
  transition: transform var(--transition-fast);
}

.service-tile:hover .card-link span {
  transform: translateX(4px);
}

.note-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 5vw, 4rem);
  padding: clamp(1.75rem, 4vw, 3.5rem);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.note-card h2 {
  margin-bottom: 0;
}

.note-card > p {
  align-self: end;
  font-size: 1.1rem;
}

.project-showcase {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
}

.project-preview {
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
}

.project-empty {
  min-height: 360px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: var(--space-2);
  background: linear-gradient(145deg, #f7fbfe, #e7f5fc);
  text-align: center;
}

.project-empty span,
.three-values article > span {
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 800;
}

.project-empty strong {
  color: var(--color-ink);
  font-size: 1.45rem;
}

.project-meta p:not(.eyebrow) {
  margin-block: var(--space-3) var(--space-4);
}

.three-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.three-values article {
  padding: var(--space-5);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.three-values h3 {
  margin-top: var(--space-3);
}

.three-values p {
  margin-top: var(--space-2);
}

.about-grid {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  align-items: center;
  gap: clamp(2rem, 7vw, 5.5rem);
}

.about-mark {
  display: grid;
  place-items: center;
  padding: clamp(2.25rem, 5vw, 3.75rem);
  background: linear-gradient(145deg, #eef9fd, var(--color-cream));
  border-radius: var(--radius-sm);
}

.about-mark img {
  width: min(270px, 72%);
  height: auto;
  filter: drop-shadow(0 24px 28px rgba(40, 82, 120, 0.16));
}

.about-copy p:not(.eyebrow) {
  margin-top: var(--space-3);
  font-size: 1.08rem;
}

.about-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: var(--space-4);
}

.about-pills span {
  padding: 0.42rem 0.7rem;
  color: #607383;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 0.84rem;
}

.section-dark {
  color: var(--color-white);
  background: var(--color-ink);
}

.section-dark h2,
.section-dark h3,
.section-dark strong {
  color: var(--color-white);
}

.section-dark p {
  color: #c8d5df;
}

.manifesto {
  max-width: 1000px;
}

.manifesto > h2 {
  max-width: 12ch;
}

.manifesto-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  margin-top: var(--space-6);
}

.manifesto-grid strong {
  font-size: 1.12rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  align-items: start;
  gap: clamp(2rem, 6vw, 5rem);
}

.contact-panel {
  position: sticky;
  top: 120px;
}

.contact-panel > p:not(.eyebrow) {
  margin-top: var(--space-3);
}

.contact-email {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-4);
  margin-top: var(--space-4);
  border-block: 1px solid var(--color-border);
  color: var(--color-ink);
  font-size: clamp(1.18rem, 2vw, 1.6rem);
  font-weight: 800;
}

.contact-facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.contact-facts span {
  padding: 0.44rem 0.65rem;
  background: var(--color-soft);
  border-radius: 999px;
  font-size: 0.82rem;
}

.contact-form {
  padding: clamp(1.5rem, 4vw, 2.75rem);
  background: #f7fafc;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.field {
  display: grid;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
}

.field label {
  color: var(--color-ink);
  font-size: 0.92rem;
  font-weight: 800;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0.78rem 0.88rem;
  color: var(--color-text);
  background: var(--color-white);
  border: 1px solid #cfdce5;
  border-radius: var(--radius-sm);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(0, 139, 248, 0.1);
}

.field textarea {
  resize: vertical;
}

.form-help {
  margin-top: var(--space-3);
  font-size: 0.84rem;
}

/* 17. Responsive */
@media (max-width: 1080px) {
  .why-layout,
  .projects-layout,
  .page-hero-grid,
  .project-showcase,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .why-layout,
  .projects-layout {
    gap: var(--space-5);
  }

  .method-track {
    right: 10%;
    left: 10%;
  }

  .service-grid,
  .three-values,
  .manifesto-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-panel {
    position: static;
  }
}

@media (max-width: 920px) {
  :root {
    --container: min(100% - 32px, 1180px);
  }

  .section {
    padding-block: var(--space-6);
  }

  .nav-wrap {
    min-height: 72px;
  }

  .brand {
    width: 154px;
  }

  .menu-toggle {
    display: block;
  }

  .main-nav {
    position: fixed;
    top: 72px;
    right: 16px;
    left: 16px;
    display: grid;
    gap: 2px;
    padding: var(--space-3);
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    visibility: hidden;
    transition:
      opacity var(--transition-normal),
      transform var(--transition-normal),
      visibility var(--transition-normal);
  }

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

  .main-nav > a {
    min-height: 46px;
    padding-inline: var(--space-3);
    border-radius: var(--radius-xs);
  }

  .main-nav > a:not(.nav-cta)::after {
    display: none;
  }

  .nav-cta {
    justify-content: center;
    margin-top: var(--space-1);
  }

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

  .hero-copy,
  .hero-visual {
    max-width: 760px;
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

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

  .menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .method-track {
    top: 0;
    bottom: 0;
    left: 10px;
    width: 2px;
    height: auto;
  }

  .method-track span {
    transform: scaleY(0);
    transform-origin: top;
  }

  .method-timeline.is-active .method-track span {
    transform: scaleY(1);
  }

  .method-steps {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .method-step {
    position: relative;
    padding-top: 0;
    padding-left: var(--space-6);
  }

  .method-step::before {
    top: 8px;
    left: 0;
    margin-left: 0;
  }

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

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

@media (max-width: 680px) {
  :root {
    --container: min(100% - 28px, 1180px);
  }

  h1 {
    font-size: clamp(2.45rem, 11vw, 3.35rem);
  }

  h2 {
    font-size: clamp(1.85rem, 8vw, 2.65rem);
  }

  .hero {
    padding-block: var(--space-5);
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-actions .button,
  .hero-actions .text-link {
    width: 100%;
    justify-content: center;
  }

  .mockup-page {
    padding: var(--space-3);
  }

  .mockup-main {
    grid-template-columns: 1.12fr 0.78fr;
    gap: var(--space-3);
    padding-block: var(--space-4);
  }

  .mockup-media {
    min-height: 126px;
  }

  .mockup-title {
    height: 10px;
  }

  .mockup-line {
    height: 6px;
    margin-top: var(--space-3);
  }

  .mockup-cta {
    width: 86px;
    height: 26px;
    margin-top: var(--space-3);
  }

  .mockup-panels span {
    min-height: 34px;
  }

  .why-card {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .why-card > span {
    grid-column: 1;
    grid-row: 2;
    line-height: 1.2;
  }

  .why-card h3,
  .why-card p {
    grid-column: 2;
  }

  .why-card h3 {
    grid-row: 1;
    align-self: center;
  }

  .cta-card {
    align-items: flex-start;
    flex-direction: column;
  }

  .cta-card .button {
    width: 100%;
  }

  .service-grid,
  .three-values,
  .manifesto-grid {
    grid-template-columns: 1fr;
  }

  .service-tile {
    min-height: 0;
  }

  .note-card {
    grid-template-columns: 1fr;
  }

  .project-empty {
    min-height: 280px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

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

  .footer-bottom {
    flex-direction: column;
  }
}

@media (max-width: 420px) {
  .browser-address,
  .browser-url {
    width: min(210px, 58%);
  }

  .mockup-menu i {
    width: 24px;
  }

  .contact-email {
    flex-direction: column;
  }
}

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

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

  .website-mockup {
    transform: none !important;
  }

  .method-track span {
    transform: none !important;
  }

  .js [data-reveal],
  .js [data-stagger] > * {
    opacity: 1 !important;
    transform: none !important;
  }
}