/* Softier 1 — Soft Engineering */

:root {
  --ink: #0c1a24;
  --ink-soft: #1a2f3d;
  --mist: #e6eef3;
  --fog: #f4f8fa;
  --paper: #fbfcfd;
  --teal: #0f8f88;
  --teal-deep: #0a6b66;
  --teal-glow: rgba(15, 143, 136, 0.35);
  --sky: #7eb8c9;
  --line: rgba(12, 26, 36, 0.1);
  --muted: rgba(12, 26, 36, 0.62);
  --font-display: "Syne", system-ui, sans-serif;
  --font-body: "Instrument Sans", system-ui, sans-serif;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --header-h: 4.5rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 50;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Header */

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  padding: 0 clamp(1.25rem, 4vw, 3rem);
  transition: background 0.35s var(--ease-out), backdrop-filter 0.35s ease, border-color 0.35s ease;
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background: rgba(251, 252, 253, 0.82);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.logo-mark {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 0.45rem;
  background: var(--ink);
  color: var(--mist);
  font-size: 0.75rem;
  letter-spacing: 0;
}

.logo-text {
  font-size: 1.05rem;
}

.nav {
  display: none;
  align-items: center;
  gap: 1.75rem;
  font-size: 0.95rem;
  font-weight: 500;
}

.nav a {
  position: relative;
  opacity: 0.72;
  transition: opacity 0.2s ease;
}

.nav a:hover,
.nav a:focus-visible {
  opacity: 1;
}

.nav-cta {
  opacity: 1 !important;
  padding: 0.55rem 1rem;
  border: 1px solid var(--ink);
  border-radius: 0.35rem;
  transition: background 0.25s ease, color 0.25s ease;
}

.nav-cta:hover,
.nav-cta:focus-visible {
  background: var(--ink);
  color: var(--paper);
}

.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 1.35rem;
  height: 2px;
  background: var(--ink);
  transition: transform 0.3s var(--ease-out), opacity 0.2s ease;
}

.menu-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.mobile-nav {
  position: fixed;
  inset: var(--header-h) 0 auto;
  z-index: 39;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1rem 1.25rem 1.5rem;
  background: rgba(251, 252, 253, 0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.mobile-nav[hidden] {
  display: none;
}

.mobile-nav a {
  padding: 0.85rem 0.25rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  border-bottom: 1px solid var(--line);
}

@media (min-width: 860px) {
  .nav {
    display: flex;
  }

  .menu-toggle,
  .mobile-nav {
    display: none !important;
  }
}

/* Hero */

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: end;
  padding: calc(var(--header-h) + 2rem) clamp(1.25rem, 4vw, 3rem) 2.5rem;
  overflow: hidden;
  background:
    radial-gradient(120% 80% at 80% 10%, rgba(126, 184, 201, 0.45), transparent 55%),
    radial-gradient(90% 70% at 10% 90%, rgba(15, 143, 136, 0.22), transparent 50%),
    linear-gradient(165deg, #dce8ef 0%, #eef5f7 42%, #f7fbfc 100%);
}

.hero-atmosphere {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  will-change: transform;
  animation: float 12s ease-in-out infinite;
}

.orb-a {
  width: min(48vw, 420px);
  height: min(48vw, 420px);
  top: 8%;
  right: 4%;
  background: rgba(15, 143, 136, 0.35);
  animation-delay: 0s;
}

.orb-b {
  width: min(38vw, 320px);
  height: min(38vw, 320px);
  bottom: 18%;
  left: 6%;
  background: rgba(126, 184, 201, 0.45);
  animation-delay: -4s;
  animation-duration: 15s;
}

.orb-c {
  width: min(28vw, 240px);
  height: min(28vw, 240px);
  top: 42%;
  left: 42%;
  background: rgba(255, 255, 255, 0.55);
  animation-delay: -7s;
  animation-duration: 18s;
}

.grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(12, 26, 36, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(12, 26, 36, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 80% 70% at 70% 35%, black 20%, transparent 75%);
  animation: gridDrift 28s linear infinite;
}

@keyframes float {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  50% {
    transform: translate3d(2%, -4%, 0) scale(1.06);
  }
}

@keyframes gridDrift {
  from {
    background-position: 0 0, 0 0;
  }
  to {
    background-position: 72px 36px, 36px 72px;
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 46rem;
  padding-bottom: 3rem;
}

.hero-brand {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 12vw, 7.5rem);
  font-weight: 800;
  line-height: 0.92;
  letter-spacing: -0.06em;
  color: var(--ink);
}

.hero-title {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 4.2vw, 2.75rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.035em;
  color: var(--ink-soft);
}

.hero-lead {
  margin: 0 0 2rem;
  max-width: 34rem;
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.125rem);
}

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

.hero-scroll {
  position: absolute;
  right: clamp(1.25rem, 4vw, 3rem);
  bottom: 2.5rem;
  display: none;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.75rem;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.scroll-line {
  width: 1px;
  height: 3.5rem;
  background: linear-gradient(to bottom, var(--teal), transparent);
  transform-origin: top;
  animation: scrollPulse 2.2s var(--ease-out) infinite;
}

@keyframes scrollPulse {
  0% {
    transform: scaleY(0.35);
    opacity: 0.4;
  }
  50% {
    transform: scaleY(1);
    opacity: 1;
  }
  100% {
    transform: scaleY(0.35);
    opacity: 0.4;
  }
}

@media (min-width: 760px) {
  .hero {
    align-items: center;
  }

  .hero-content {
    padding-bottom: 0;
  }

  .hero-scroll {
    display: flex;
  }
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.75rem 1.35rem;
  border-radius: 0.35rem;
  font-weight: 600;
  font-size: 0.98rem;
  letter-spacing: -0.01em;
  transition: transform 0.25s var(--ease-out), background 0.25s ease, color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

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

.btn-primary {
  background: var(--ink);
  color: var(--paper);
  box-shadow: 0 12px 30px rgba(12, 26, 36, 0.18);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--teal-deep);
  box-shadow: 0 14px 34px var(--teal-glow);
}

.btn-ghost {
  border: 1px solid rgba(12, 26, 36, 0.22);
  background: rgba(255, 255, 255, 0.35);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--ink);
  background: rgba(255, 255, 255, 0.7);
}

/* Sections */

.section {
  padding: clamp(4.5rem, 10vw, 8rem) clamp(1.25rem, 4vw, 3rem);
}

.section-inner {
  max-width: 68rem;
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal);
}

.section-title {
  margin: 0 0 1.25rem;
  max-width: 16ch;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.section-lead {
  margin: 0 0 3rem;
  max-width: 36rem;
  color: var(--muted);
}

/* About */

.about {
  background:
    linear-gradient(180deg, var(--paper), var(--fog) 40%, #e9f2f4);
}

.about-grid {
  display: grid;
  gap: 1.25rem;
  margin-bottom: 3rem;
}

@media (min-width: 800px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

.about-copy {
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.stats {
  display: grid;
  gap: 1.5rem;
  margin: 0;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
}

@media (min-width: 720px) {
  .stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

.stats dt {
  margin-bottom: 0.4rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal);
}

.stats dd {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

/* Work */

.work {
  background: var(--ink);
  color: var(--mist);
}

.work .eyebrow {
  color: #6fd0c8;
}

.work .section-lead {
  color: rgba(230, 238, 243, 0.68);
}

.capability-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.capability {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  padding: 1.75rem 0;
  border-top: 1px solid rgba(230, 238, 243, 0.12);
  transition: background 0.3s ease, padding-left 0.35s var(--ease-out);
}

.capability:last-child {
  border-bottom: 1px solid rgba(230, 238, 243, 0.12);
}

.capability:hover {
  padding-left: 0.5rem;
}

.capability-index {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: #6fd0c8;
  padding-top: 0.2rem;
}

.capability h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.6rem);
  font-weight: 600;
  letter-spacing: -0.03em;
}

.capability p {
  margin: 0;
  max-width: 40rem;
  color: rgba(230, 238, 243, 0.65);
}

/* Approach */

.approach {
  background:
    radial-gradient(70% 60% at 100% 0%, rgba(15, 143, 136, 0.12), transparent 55%),
    var(--paper);
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.5rem;
  counter-reset: step;
}

@media (min-width: 860px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

.step {
  position: relative;
  padding-top: 1.25rem;
  border-top: 2px solid var(--ink);
  counter-increment: step;
}

.step::before {
  content: "0" counter(step);
  display: block;
  margin-bottom: 1rem;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--teal);
  letter-spacing: 0.04em;
}

.step h3 {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.step p {
  margin: 0;
  color: var(--muted);
}

/* Contact */

.contact {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(90% 80% at 20% 100%, rgba(126, 184, 201, 0.35), transparent 55%),
    radial-gradient(70% 70% at 90% 20%, rgba(15, 143, 136, 0.18), transparent 50%),
    linear-gradient(160deg, #d7e7ee, #eef6f8 55%, #f7fbfc);
}

.contact-inner {
  max-width: 42rem;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 0.5rem;
}

/* Footer */

.site-footer {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 2rem clamp(1.25rem, 4vw, 3rem) 2.5rem;
  border-top: 1px solid var(--line);
  background: var(--paper);
}

@media (min-width: 640px) {
  .site-footer {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.site-footer p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

/* Reveal animations */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.85s var(--ease-out),
    transform 0.85s var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.hero .reveal {
  transform: translateY(36px);
}

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

  .orb,
  .grid-lines,
  .scroll-line {
    animation: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}