/* ============================================================
   SKA Labs — marketing site
   Tokens sourced from the SKA Labs brand design system
   (colors_and_type.css): duotone blue/lime on an ink neutral spine.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Geist:wght@300;400;500;600;700&family=Geist+Mono:wght@400;500;600&display=swap');

:root {
  --ska-blue:        #0090d0;
  --ska-blue-bright: #00a0e8;
  --ska-blue-mid:    #0078b0;
  --ska-blue-deep:   #005880;

  --ska-lime:        #c9e74a;
  --ska-lime-bright: #d8f266;

  --ink-900: #001018;
  --ink-800: #002030;
  --ink-700: #003a52;

  --slate-900: #1e242b;
  --slate-700: #3a434c;
  --slate-600: #586068;
  --slate-400: #97a0a8;
  --slate-300: #c6ccd2;
  --slate-200: #e2e6ea;
  --slate-100: #eef1f4;
  --slate-50:  #f6f7f9;

  --paper: #ffffff;

  --bg-gradient-warm: linear-gradient(180deg, #f4f2ee 0%, #e8e6e1 100%);
  --bg-gradient-cool: linear-gradient(180deg, #f1f3f5 0%, #dde2e6 100%);
  --bg-gradient-ink:  linear-gradient(225deg, #2a4d65 0%, #102f43 22%, #021824 50%, #001018 75%);

  --fg-1: var(--slate-900);
  --fg-2: var(--slate-700);
  --fg-3: var(--slate-600);
  --fg-4: var(--slate-400);
  --fg-on-ink: #ffffff;
  --fg-on-ink-soft: #b8c5cf;

  --border-hairline: var(--slate-200);
  --border-strong: var(--slate-600);

  --font-sans: 'Geist', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, 'SF Mono', 'JetBrains Mono', monospace;
  --font-serif: Georgia, 'Iowan Old Style', 'Times New Roman', serif;

  --fs-display: clamp(42px, 6.4vw, 84px);
  --fs-h2: clamp(30px, 3.6vw, 42px);
  --fs-h3: 20px;

  --ls-label: 0.14em;
  --ease-default: cubic-bezier(.2, .8, .2, 1);
  --d-base: 220ms;
  --d-slow: 480ms;

  --max: 1180px;
  --gutter: clamp(20px, 5vw, 64px);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--fg-2);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

img, video { max-width: 100%; display: block; }
a { color: var(--ska-blue-mid); text-decoration: none; }
a:hover { color: var(--ska-blue); text-decoration: underline; text-underline-offset: 3px; }

h1, h2, h3, h4 { font-family: var(--font-sans); color: var(--fg-1); margin: 0; font-weight: 500; }
p { margin: 0; }

.site {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.accent { color: var(--ska-lime); }
.section--ink .accent, .hero .accent { color: var(--ska-lime); }

.section { padding: clamp(72px, 10vw, 128px) 0; }
.section--warm { background: var(--bg-gradient-warm); }
.section--cool { background: var(--bg-gradient-cool); }
.section--ink  { background: var(--bg-gradient-ink); color: var(--fg-on-ink); }
.section--ink h1, .section--ink h2, .section--ink h3 { color: var(--fg-on-ink); }
.section--ink p { color: var(--fg-on-ink-soft); }

/* -------------------- Buttons -------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: 4px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--d-base) var(--ease-default), color var(--d-base) var(--ease-default), border-color var(--d-base) var(--ease-default), transform var(--d-base) var(--ease-default);
  text-decoration: none !important;
}
.btn--primary {
  background: linear-gradient(135deg, var(--ska-blue) 0%, var(--ska-blue-mid) 100%);
  color: #fff;
  background-size: 160% 160%;
  background-position: 0% 0%;
}
.btn--primary:hover {
  background: linear-gradient(135deg, var(--ska-blue-bright) 0%, var(--ska-blue) 100%);
  color: #fff;
}
.btn--primary:active { background: var(--ska-blue-deep); color: #fff; transform: translateY(1px); }

.btn--ghost { background: transparent; border-color: rgba(255,255,255,.35); color: var(--fg-on-ink); }
.btn--ghost:hover { background: rgba(201,231,74,.12); border-color: var(--ska-lime); color: var(--ska-lime); }

.btn--lg {
  padding: 18px 36px;
  font-size: 16px;
}

.btn:focus-visible { outline: 3px solid rgba(0,144,208,.4); outline-offset: 2px; }

/* -------------------- Nav -------------------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background var(--d-base) var(--ease-default), border-color var(--d-base) var(--ease-default);
}
.nav.nav--solid {
  background: var(--ink-900);
  border-bottom-color: rgba(255,255,255,.08);
}
.nav__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__logo img { height: 26px; width: auto; }
.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav__links a {
  color: var(--fg-on-ink-soft);
  font-size: 14px;
  font-weight: 500;
}
.nav__links a:hover, .nav__links a[aria-current="page"] { color: #fff; text-decoration: none; }
.nav__toggle {
  display: none;
  background: none;
  border: 0;
  color: #fff;
  padding: 8px;
  cursor: pointer;
}
.nav__toggle svg { display: block; }

@media (max-width: 760px) {
  .nav__toggle { display: block; }
  .nav__links {
    position: fixed;
    inset: 60px 0 0 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 16px var(--gutter) 32px;
    background: var(--ink-900);
    border-top: 1px solid rgba(255,255,255,.08);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--d-base) var(--ease-default), transform var(--d-base) var(--ease-default);
  }
  .nav__links a { padding: 12px 0; width: 100%; border-bottom: 1px solid rgba(255,255,255,.06); }
  .nav.is-open .nav__links { opacity: 1; transform: translateY(0); pointer-events: auto; }
}

/* -------------------- Hero -------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: var(--ink-900);
}
.hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero__scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(0,16,24,.55) 0%, rgba(0,16,24,.3) 40%, rgba(0,16,24,.1) 65%, rgba(0,16,24,.28) 100%),
    linear-gradient(0deg, rgba(0,16,24,.5) 0%, rgba(0,16,24,.05) 35%, rgba(0,16,24,0) 100%);
}
.hero h1, .hero__lede { text-shadow: 0 2px 20px rgba(0,16,24,.7); }
.hero__content {
  position: relative;
  z-index: 1;
  padding: 140px 0 120px;
  width: 100%;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: end;
}
.hero__kicker {
  display: inline-flex;
  align-items: center;
  margin-bottom: 20px;
}
.hero h1 {
  font-size: var(--fs-display);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: #fff;
  text-wrap: balance;
}
.hero h1 em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--ska-blue-bright);
}
.hero__lede {
  color: #fff;
  font-size: 18px;
  font-weight: 500;
  max-width: 34ch;
  margin-top: 32px;
}

@media (max-width: 860px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__lede { margin-top: 24px; }
}

/* -------------------- Problem section -------------------- */
.problem__top {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 56px;
}
.problem__intro { max-width: 60ch; }
.problem__intro p:first-child { font-size: clamp(24px, 2.6vw, 30px); color: var(--fg-1); font-weight: 500; letter-spacing: -0.01em; margin-bottom: 8px; }
.problem__intro p:last-child { font-size: 17px; color: var(--fg-3); }
.problem__photo { border-radius: 12px; overflow: hidden; }
.problem__photo img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 16/10; }

@media (max-width: 860px) {
  .problem__top { grid-template-columns: 1fr; }
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.problem-card {
  position: relative;
  background: var(--bg-gradient-ink);
  border-radius: 16px;
  padding: 40px 34px;
  color: var(--fg-on-ink-soft);
  border: 1px solid transparent;
  overflow: hidden;
  transition: transform 750ms var(--ease-default), box-shadow 750ms var(--ease-default), border-color 750ms var(--ease-default);
}
.problem-card::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  background: radial-gradient(circle at 80% 15%, rgba(0,160,232,.55) 0%, rgba(201,231,74,.16) 42%, transparent 72%);
  opacity: 0;
  transition: opacity 750ms var(--ease-default);
}
.problem-card > * { position: relative; z-index: 1; }
.problem-card:hover {
  transform: translateY(-6px);
  border-color: rgba(201,231,74,.5);
  box-shadow: 0 28px 56px -20px rgba(0,16,24,.6), 0 0 0 1px rgba(201,231,74,.1);
}
.problem-card:hover::before { opacity: 1; }
.problem-card h3 {
  position: relative;
  color: #fff;
  font-size: 23px;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin-bottom: 24px;
  padding-bottom: 22px;
}
.problem-card h3::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 44px;
  height: 3px;
  background: var(--ska-lime);
  border-radius: 2px;
  transition: width var(--d-base) var(--ease-default);
}
.problem-card:hover h3::after { width: 64px; }
.problem-card p { font-size: 16.5px; }

.problem__close {
  margin-top: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.problem__close p { max-width: 50ch; }
.problem__close p.drama {
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.25;
}
.problem__close p.drama strong {
  display: block;
  color: var(--fg-1);
  font-weight: 700;
  letter-spacing: -0.01em;
}
.problem__close p.drama em {
  display: block;
  margin-top: 6px;
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--ska-blue-mid);
}
.problem__close .btn--primary { flex-shrink: 0; }

@media (max-width: 860px) {
  .card-grid { grid-template-columns: 1fr; }
}

/* -------------------- Video statement -------------------- */
.statement {
  position: relative;
  min-height: 78vh;
  overflow: hidden;
  background: var(--ink-900);
  display: flex;
  align-items: flex-end;
}
.statement__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.statement__media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.statement__inner {
  position: relative;
  z-index: 1;
  padding-bottom: 72px;
}
.statement__inner h2 {
  max-width: 16ch;
  font-size: clamp(34px, 5vw, 58px);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: #fff;
  text-shadow: 0 2px 24px rgba(0,16,24,.85), 0 1px 4px rgba(0,16,24,.9);
}
.statement__inner p {
  max-width: 46ch;
  margin-top: 20px;
  font-size: 19px;
  font-weight: 500;
  color: rgba(255,255,255,.92);
  text-shadow: 0 2px 16px rgba(0,16,24,.8);
}

/* -------------------- Approach -------------------- */
.approach__head {
  max-width: 62ch;
  margin-bottom: 64px;
}
.approach__lead {
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: #fff;
}
.approach__lead .hl-blue { color: var(--ska-blue-bright); }
.approach__lead .hl-lime { color: var(--ska-lime); }

.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.tech-card { display: flex; flex-direction: column; gap: 18px; }
.tech-card__img {
  aspect-ratio: 4 / 3;
  border-radius: 10px;
  overflow: hidden;
  background: rgba(255,255,255,.04);
  border: 1px solid transparent;
  transition: border-color var(--d-base) var(--ease-default);
}
.tech-card:hover .tech-card__img { border-color: rgba(201,231,74,.4); }
.tech-card__img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform var(--d-slow) var(--ease-default);
}
.tech-card:hover .tech-card__img img { transform: scale(1.06); }
.tech-card h3 {
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
}
.tech-card p { color: var(--fg-on-ink-soft); font-size: 16.5px; }

@media (max-width: 860px) {
  .tech-grid { grid-template-columns: 1fr; gap: 40px; }
}

/* -------------------- Team -------------------- */
.team__head { max-width: 62ch; margin-bottom: 48px; overflow: hidden; }
.team__head p.gradient-text {
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.2;
  background: linear-gradient(90deg, var(--ink-700) 0%, var(--ska-blue-mid) 35%, var(--ska-blue-bright) 55%, var(--ska-blue-mid) 75%, var(--ink-700) 100%);
  background-size: 300% 100%;
  background-position: var(--grad-x, 100%) 0;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
@media (prefers-reduced-motion: reduce) {
  .team__head p.gradient-text { background-position: 0% 0; transition: none; }
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.team-card { border-radius: 10px; padding: 6px; transition: background var(--d-base) var(--ease-default); }
.team-card:hover { background: rgba(0,144,208,.05); }
.team-card__photo {
  aspect-ratio: 1;
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 16px;
  position: relative;
}
.team-card__photo img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform var(--d-slow) var(--ease-default);
}
.team-card:hover .team-card__photo img { transform: scale(1.05); }
.team-card .role-label { display: block; font-size: 12px; font-weight: 600; letter-spacing: var(--ls-label); text-transform: uppercase; color: var(--ska-blue-mid); margin-bottom: 6px; }
.team-card h3 { font-size: 18px; margin-bottom: 2px; }
.team-card .role { font-size: 14px; color: var(--fg-3); margin-bottom: 8px; display: block; }
.team-card p.bio { font-size: 15px; color: var(--fg-2); }

@media (max-width: 900px) {
  .team-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .team-grid { grid-template-columns: 1fr; max-width: 320px; margin: 0 auto; }
}

/* -------------------- Contact / CTA block -------------------- */
.contact-block { text-align: left; }
.contact-block h2 { font-size: var(--fs-h2); max-width: 26ch; margin-bottom: 28px; letter-spacing: -0.015em; line-height: 1.3; }
.contact-block__big {
  display: inline-block;
  margin-top: 4px;
  font-size: var(--fs-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.05;
}
.contact-block .lede { max-width: 52ch; margin: 0 0 48px; font-size: 17px; }
.contact-block .btn { margin-top: 8px; }

/* -------------------- Inline signal mark -------------------- */
.signal-mark {
  display: inline-flex;
  vertical-align: middle;
  color: var(--ska-lime);
  overflow: visible;
}
.signal-mark path {
  stroke-dasharray: 140;
  stroke-dashoffset: 0;
  animation: signal-draw 3.2s linear infinite;
}
@keyframes signal-draw {
  0% { stroke-dashoffset: 140; }
  100% { stroke-dashoffset: -140; }
}
@media (prefers-reduced-motion: reduce) {
  .signal-mark path { animation: none; }
}

/* -------------------- Footer -------------------- */
.footer {
  background: var(--ink-900);
  color: var(--fg-on-ink-soft);
  padding: 28px 0 40px;
  border-top: 1px solid rgba(255,255,255,.08);
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
}
.footer a { color: var(--fg-on-ink-soft); }
.footer a:hover { color: #fff; }
.footer__links { display: flex; gap: 20px; list-style: none; margin: 0; padding: 0; }

/* -------------------- Scroll reveal -------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 700ms var(--ease-default), transform 700ms var(--ease-default);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}
[data-reveal="side"] {
  transform: translateX(-36px);
  transition: opacity 900ms var(--ease-default), transform 900ms var(--ease-default);
}
[data-reveal="side"].is-visible {
  transform: translateX(0);
}

/* -------------------- Contact page -------------------- */
.contact-hero {
  padding: 160px 0 56px;
  background: var(--bg-gradient-ink);
  color: var(--fg-on-ink-soft);
}
.contact-hero h1 { color: #fff; font-size: clamp(38px, 5.5vw, 58px); margin-bottom: 16px; letter-spacing: -0.02em; }
.contact-hero p { max-width: 52ch; font-size: 17px; }

.form-wrap {
  padding: 56px 0 100px;
}

.contact-form {
  max-width: 720px;
}
.contact-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.field { margin-bottom: 24px; }
.field label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--fg-1);
  margin-bottom: 8px;
}
.field__optional { font-weight: 400; color: var(--fg-4); }
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 13px 16px;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--fg-1);
  background: var(--paper);
  border: 1px solid var(--slate-300);
  border-radius: 6px;
  transition: border-color var(--d-base) var(--ease-default), box-shadow var(--d-base) var(--ease-default);
}
.field textarea { resize: vertical; min-height: 120px; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--ska-blue);
  box-shadow: 0 0 0 3px rgba(0,144,208,.16);
}
.field__hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.contact-form__actions {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 8px;
}
.contact-form__status {
  font-size: 14px;
  margin: 0;
}
.contact-form__status[data-state="success"] { color: var(--signal-positive, #1f9e6a); }
.contact-form__status[data-state="error"] { color: var(--signal-critical, #c8362e); }

.contact-form.is-submitting .btn { opacity: .6; pointer-events: none; }
.contact-form.is-sent .field,
.contact-form.is-sent .contact-form__row { display: none; }

@media (max-width: 640px) {
  .contact-form__row { grid-template-columns: 1fr; gap: 0; }
}