/* ==========================================================
   Kin Systems Inc. — styles
   Brand: navy #0e2559 + white, red maple leaf accent
   ========================================================== */

:root {
  --navy: #0e2559;
  --navy-800: #0a1c45;
  --navy-900: #071435;
  --navy-950: #040c24;
  --white: #ffffff;
  --paper: #f5f7fc;
  --ink: #0b1633;
  --muted: #5a6888;
  --muted-light: #a9b6d6;
  --line-dark: rgba(255, 255, 255, 0.1);
  --line-light: rgba(14, 37, 89, 0.12);
  --glow: #6f9dff;
  --glow-soft: rgba(111, 157, 255, 0.35);
  --red: #d52b1e;

  --font: "Sora", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --radius: 18px;
  --container: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; scroll-padding-top: calc(104px - clamp(48px, 5vw, 64px)); /* lands section labels ~28px below the 76px nav */ }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--navy-950);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; line-height: 1.1; letter-spacing: -0.02em; }
p { margin: 0; }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 40px);
}

.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;
}

.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  background: var(--white); color: var(--navy);
  padding: 10px 16px; border-radius: 8px; font-weight: 600;
}
.skip-link:focus { top: 16px; }

:focus-visible { outline: 2px solid var(--glow); outline-offset: 3px; border-radius: 6px; }

/* ---------- Buttons ---------- */
.btn {
  --h: 54px;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: var(--h); padding: 0 28px;
  border-radius: 999px; border: 1px solid transparent;
  font: 600 1rem/1 var(--font); letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), background .3s, border-color .3s;
}
.btn svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: transform .3s var(--ease); }
.btn:hover svg { transform: translateX(4px); }

.btn--primary {
  color: var(--navy);
  background: var(--white);
  box-shadow: 0 0 0 1px rgba(255,255,255,.2), 0 10px 40px -10px var(--glow-soft), 0 0 30px -5px var(--glow-soft);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 0 0 1px rgba(255,255,255,.4), 0 16px 50px -10px var(--glow), 0 0 40px -5px var(--glow-soft); }

.btn--ghost { color: var(--white); border-color: rgba(255,255,255,.25); background: rgba(255,255,255,.04); }
.btn--ghost:hover { border-color: var(--glow); background: rgba(111,157,255,.12); }
.btn--sm { --h: 40px; padding: 0 20px; font-size: .9rem; }
.btn--block { width: 100%; }

/* ---------- Nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto; z-index: 50;
  transition: background .4s, border-color .4s, backdrop-filter .4s;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(4, 12, 36, 0.72);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom-color: var(--line-dark);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }

.brand { display: inline-flex; align-items: center; color: var(--white); padding-top: .5em; }
.brand__name { font-weight: 800; letter-spacing: .14em; font-size: 1.05rem; line-height: 1; }
.brand__rest { font-weight: 400; margin-left: .35em; opacity: .75; }
/* The "I" in KIN is dotted with the maple leaf */
.brand__i { position: relative; display: inline-block; }
.brand__tittle {
  position: absolute; width: .7em; height: .7em; max-width: none; top: -.78em;
  left: calc(50% - .07em); transform: translateX(-50%); /* -.07em offsets the trailing letter-spacing */
  fill: var(--red); filter: drop-shadow(0 0 6px rgba(213,43,30,.45));
}
.brand--sm .brand__name { font-size: .95rem; }

.nav__links { display: flex; align-items: center; gap: 34px; }
.nav__links a:not(.btn) {
  color: rgba(255,255,255,.75); font-size: .92rem; font-weight: 500; position: relative;
  transition: color .3s;
}
.nav__links a:not(.btn)::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 1px; width: 100%;
  background: var(--glow); transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease);
}
.nav__links a:not(.btn):hover { color: var(--white); }
.nav__links a:not(.btn):hover::after { transform: scaleX(1); }

.nav__toggle { display: none; }

@media (max-width: 760px) {
  .nav__toggle {
    display: grid; gap: 6px; place-content: center;
    width: 44px; height: 44px; border-radius: 12px;
    background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.15); cursor: pointer;
  }
  .nav__bar { display: block; width: 18px; height: 2px; background: var(--white); border-radius: 2px; transition: transform .3s var(--ease); }
  .nav__toggle[aria-expanded="true"] .nav__bar:first-of-type { transform: translateY(4px) rotate(45deg); }
  .nav__toggle[aria-expanded="true"] .nav__bar:last-of-type { transform: translateY(-4px) rotate(-45deg); }

  .nav__links {
    position: absolute; top: 76px; left: 12px; right: 12px;
    flex-direction: column; align-items: stretch; gap: 4px;
    padding: 12px; border-radius: 16px;
    background: rgba(4, 12, 36, 0.95); border: 1px solid var(--line-dark);
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    opacity: 0; transform: translateY(-8px); pointer-events: none;
    transition: opacity .3s, transform .3s var(--ease);
  }
  .nav__links.is-open { opacity: 1; transform: none; pointer-events: auto; }
  .nav__links a:not(.btn) { padding: 12px 14px; }
  .nav__links a:not(.btn)::after { display: none; }
  .nav__links .btn { margin-top: 6px; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative; isolation: isolate; overflow: hidden;
  min-height: 100vh; min-height: 100svh;
  display: flex; align-items: center;
  padding: 120px 0 100px;
  color: var(--white);
  background:
    radial-gradient(120% 80% at 80% 0%, #16357d 0%, transparent 55%),
    linear-gradient(180deg, var(--navy) 0%, var(--navy-900) 60%, var(--navy-950) 100%);
}
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; opacity: .9; }

.hero__glow { position: absolute; border-radius: 50%; filter: blur(80px); z-index: -2; pointer-events: none; }
.hero__glow--a { width: 520px; height: 520px; top: -120px; right: -80px; background: rgba(80, 130, 255, .35); animation: drift 14s ease-in-out infinite alternate; }
.hero__glow--b { width: 420px; height: 420px; bottom: -160px; left: -120px; background: rgba(40, 90, 220, .3); animation: drift 18s ease-in-out infinite alternate-reverse; }
.hero__glow--c { width: 600px; height: 600px; top: -200px; left: 50%; transform: translateX(-50%); background: rgba(60, 110, 240, .22); }

@keyframes drift {
  to { transform: translate(-60px, 50px) scale(1.1); }
}

.hero__grid {
  position: absolute; left: -50%; right: -50%; bottom: -10%; height: 55%; z-index: -1;
  background-image:
    linear-gradient(rgba(111,157,255,.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(111,157,255,.18) 1px, transparent 1px);
  background-size: 64px 64px;
  transform: perspective(600px) rotateX(62deg);
  transform-origin: center top;
  mask-image: linear-gradient(to bottom, transparent 0%, #000 35%, #000 60%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, #000 35%, #000 60%, transparent 100%);
  animation: grid-move 6s linear infinite;
}
@keyframes grid-move { to { background-position: 0 64px; } }

.hero__inner {
  display: grid; grid-template-columns: 1.25fr 1fr; align-items: center; gap: 48px;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 16px; border-radius: 999px;
  font: 500 .78rem/1 var(--mono); letter-spacing: .12em; text-transform: uppercase;
  color: var(--muted-light);
  background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--red); box-shadow: 0 0 0 0 rgba(213,43,30,.6); animation: pulse 2.2s infinite; }
@keyframes pulse {
  70% { box-shadow: 0 0 0 10px rgba(213,43,30,0); }
  100% { box-shadow: 0 0 0 0 rgba(213,43,30,0); }
}

.hero__title {
  margin-top: 28px;
  font-size: calc(clamp(2.5rem, 5.6vw, 4.6rem) - 1pt);
  font-weight: 800; letter-spacing: -0.035em;
}
.gradient-text {
  background: linear-gradient(100deg, #ffffff 0%, #a9c4ff 45%, #6f9dff 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero__sub {
  margin-top: 26px; max-width: 560px;
  font-size: clamp(1.05rem, 1.4vw, 1.2rem); color: var(--muted-light);
}
.hero__actions { margin-top: 42px; display: flex; flex-wrap: wrap; gap: 16px; }

/* Orb visual */
.hero__visual { display: grid; place-items: center; }
.orb { position: relative; width: min(420px, 80vw); aspect-ratio: 1; }
.orb__ring {
  position: absolute; inset: 0; border-radius: 50%;
  border: 1px solid rgba(169, 196, 255, .25);
}
.orb__ring--1 { animation: spin 26s linear infinite; border-top-color: var(--glow); }
.orb__ring--2 { inset: 13%; border-style: dashed; border-color: rgba(169,196,255,.22); animation: spin 40s linear infinite reverse; }
.orb__ring--3 { inset: 26%; border-color: rgba(169,196,255,.3); border-right-color: var(--glow); animation: spin 16s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.orb__core {
  position: absolute; inset: 36%; border-radius: 50%;
  display: grid; place-items: center;
  background: radial-gradient(circle at 35% 30%, #2a4fa8 0%, var(--navy) 55%, var(--navy-950) 100%);
  border: 1px solid rgba(255,255,255,.2);
  box-shadow: 0 0 60px -10px var(--glow), inset 0 0 30px rgba(111,157,255,.35);
  animation: float 6s ease-in-out infinite;
}
.orb__leaf { width: 42%; height: 42%; fill: var(--red); filter: drop-shadow(0 0 12px rgba(213,43,30,.5)); }
@keyframes float { 50% { transform: translateY(-10px); } }

.orb__node {
  position: absolute; width: 10px; height: 10px; border-radius: 50%;
  background: var(--white); box-shadow: 0 0 16px 3px var(--glow);
}
.orb__node--1 { top: 6%; left: 24%; animation: blink 3s ease-in-out infinite; }
.orb__node--2 { bottom: 14%; right: 6%; animation: blink 3s ease-in-out 1s infinite; }
.orb__node--3 { top: 46%; left: -1%; width: 7px; height: 7px; animation: blink 3s ease-in-out 2s infinite; }
@keyframes blink { 50% { opacity: .3; } }

.hero__scroll {
  position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%);
  width: 26px; height: 42px; border-radius: 14px; border: 1px solid rgba(255,255,255,.3);
}
.hero__scroll span {
  position: absolute; left: 50%; top: 8px; width: 3px; height: 8px; margin-left: -1.5px;
  border-radius: 2px; background: var(--white); animation: scroll 2s var(--ease) infinite;
}
@keyframes scroll { 0% { opacity: 0; transform: translateY(0); } 40% { opacity: 1; } 100% { opacity: 0; transform: translateY(14px); } }

@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; text-align: left; }
  .hero__visual { order: -1; }
  .orb { width: min(240px, 60vw); }
  .hero { padding-top: 110px; }
  .hero__scroll { display: none; }
}

/* ---------- Sections ---------- */
.section { position: relative; padding: clamp(48px, 5vw, 64px) 0 clamp(72px, 9vw, 112px); }
.section--dark { background: var(--navy-950); color: var(--white); overflow: hidden; isolation: isolate; }
.section--light { background: var(--white); color: var(--ink); }

.section__head { max-width: 640px; margin-bottom: 64px; }
.label {
  font: 500 .8rem/1 var(--mono); letter-spacing: .14em; text-transform: uppercase;
  color: var(--glow); margin-bottom: 20px;
}
.label--dark { color: var(--navy); opacity: .7; }
.section__title { font-size: clamp(2rem, 4vw, 3.1rem); font-weight: 700; }
.section__lead { margin-top: 18px; font-size: 1.1rem; color: var(--muted-light); }

/* ---------- Services cards ---------- */
.section--dark#services::before {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background-image: radial-gradient(rgba(169,196,255,.12) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(ellipse at center, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 20%, transparent 75%);
}

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 960px) { .cards { grid-template-columns: 1fr; max-width: 560px; } }

.card {
  --mx: 50%; --my: 0%;
  position: relative; overflow: hidden;
  padding: 36px 32px 40px; border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.015));
  border: 1px solid var(--line-dark);
  transition: transform .5s var(--ease), border-color .4s;
}
.card::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .4s;
  background: radial-gradient(380px circle at var(--mx) var(--my), rgba(111,157,255,.2), transparent 45%);
}
.card:hover { transform: translateY(-6px); border-color: rgba(111,157,255,.45); }
.card:hover::before { opacity: 1; }

.card__top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 44px; }
.card__num { font: 500 .85rem/1 var(--mono); color: var(--muted-light); letter-spacing: .1em; }
.card__icon {
  width: 52px; height: 52px; fill: none; stroke: var(--glow); stroke-width: 1.6;
  stroke-linecap: round; stroke-linejoin: round;
  filter: drop-shadow(0 0 10px rgba(111,157,255,.45));
}
.card__icon .fill { fill: var(--glow); }
.card__title { font-size: 1.35rem; font-weight: 600; }
.card__text { margin-top: 14px; color: var(--muted-light); font-size: .98rem; }
.card__tag {
  display: inline-block; margin-top: 22px; padding: 6px 12px; border-radius: 999px;
  font: 500 .72rem/1 var(--mono); letter-spacing: .1em; text-transform: uppercase;
  color: var(--white); background: rgba(111,157,255,.15); border: 1px solid rgba(111,157,255,.35);
}

/* ---------- Why ---------- */
.why { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(40px, 7vw, 100px); align-items: start; }
.why__intro { position: sticky; top: 104px; }
.why__intro .section__title { color: var(--navy); }
.why__list { list-style: none; margin: 0; padding: 0; }
.why__item {
  display: grid; grid-template-columns: 56px 1fr; gap: 20px;
  padding: 34px 0; border-top: 1px solid var(--line-light);
}
.why__item:last-child { border-bottom: 1px solid var(--line-light); }
.why__idx {
  display: grid; place-items: center; width: 44px; height: 44px; border-radius: 12px;
  font: 500 .9rem/1 var(--mono); color: var(--white);
  background: linear-gradient(145deg, #1d3f8f, var(--navy));
  box-shadow: 0 8px 24px -8px rgba(14,37,89,.6);
}
.why__item h3 { font-size: 1.35rem; font-weight: 700; color: var(--navy); }
.why__item p { margin-top: 8px; color: var(--muted); }

@media (max-width: 860px) {
  .why { grid-template-columns: 1fr; }
  .why__intro { position: static; }
}

/* ---------- About ---------- */
.section--about { background: var(--paper); }
.about {
  display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(40px, 7vw, 100px); align-items: center;
}
.about__shape { position: relative; aspect-ratio: 1; max-width: 360px; width: 100%; }
.about__shape span { position: absolute; border-radius: 50%; }
.about__shape span:nth-child(1) {
  inset: 0; background: conic-gradient(from 210deg, var(--navy), #3c66d6, #a9c4ff, var(--navy));
  animation: spin 30s linear infinite; filter: saturate(110%);
}
.about__shape span:nth-child(2) { inset: 12%; background: var(--paper); }
.about__shape span:nth-child(3) {
  inset: 30%; background: radial-gradient(circle at 30% 30%, #2a4fa8, var(--navy));
  box-shadow: 0 20px 50px -10px rgba(14,37,89,.5);
}
.about__text { font-size: clamp(1.3rem, 2.3vw, 1.85rem); line-height: 1.45; font-weight: 500; color: var(--navy); letter-spacing: -0.01em; }
.about__loc {
  display: inline-flex; align-items: center; gap: 10px; margin-top: 32px;
  font: 500 .85rem/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted);
}
.about__leaf { width: 16px; height: 16px; fill: var(--red); }

@media (max-width: 860px) {
  .about { grid-template-columns: 1fr; }
  .about__shape { max-width: 200px; order: 1; }
}

/* ---------- Contact ---------- */
.section--contact {
  background: linear-gradient(180deg, var(--navy-950), var(--navy));
  min-height: calc(100vh - 120px); /* last section: tall enough that #contact can scroll up under the nav */
}
.contact { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(40px, 7vw, 100px); align-items: start; }
@media (max-width: 860px) { .contact { grid-template-columns: 1fr; } }

.channels { display: flex; flex-direction: column; align-items: flex-start; gap: 14px; margin-top: 40px; }
.channel {
  display: inline-flex; align-items: center; gap: 16px; max-width: 100%;
  padding: 14px 22px 14px 14px; border-radius: 16px;
  background: rgba(255,255,255,.05); border: 1px solid var(--line-dark);
  font-weight: 600; font-size: 1.05rem;
  transition: border-color .3s, background .3s, transform .3s var(--ease);
}
.channel:hover { border-color: var(--glow); background: rgba(111,157,255,.1); transform: translateY(-2px); }
.channel svg {
  width: 44px; height: 44px; padding: 10px; border-radius: 12px;
  background: rgba(111,157,255,.15); fill: none; stroke: var(--white); stroke-width: 1.8;
}
.channel svg .fill { fill: var(--white); stroke: none; }
.channel small { display: block; font: 400 .72rem/1.4 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted-light); }

.form {
  padding: clamp(28px, 4vw, 44px); border-radius: 24px;
  background: linear-gradient(160deg, rgba(255,255,255,.08), rgba(255,255,255,.02));
  border: 1px solid rgba(255,255,255,.14);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 40px 80px -30px rgba(0,0,0,.6);
}
.field { position: relative; margin-bottom: 20px; }
.field input,
.field textarea {
  width: 100%; padding: 26px 18px 10px;
  font: 400 1rem/1.5 var(--font); color: var(--white);
  background: rgba(4,12,36,.55); border: 1px solid rgba(255,255,255,.14); border-radius: 12px;
  transition: border-color .3s, box-shadow .3s;
  resize: vertical;
}
.field textarea { min-height: 150px; }
.field label {
  position: absolute; left: 18px; top: 18px; pointer-events: none;
  color: var(--muted-light); font-size: 1rem;
  transition: transform .25s var(--ease), font-size .25s, color .25s;
  transform-origin: left top;
}
.field input:focus,
.field textarea:focus {
  outline: none; border-color: var(--glow); box-shadow: 0 0 0 4px rgba(111,157,255,.18);
}
.field input:focus + label,
.field input:not(:placeholder-shown) + label,
.field textarea:focus + label,
.field textarea:not(:placeholder-shown) + label {
  transform: translateY(-10px); font-size: .72rem; color: var(--glow);
  font-family: var(--mono); letter-spacing: .1em; text-transform: uppercase;
}
.field.is-invalid input,
.field.is-invalid textarea { border-color: #ff6b6b; }

.form .btn { margin-top: 6px; }
.form__status { margin-top: 16px; min-height: 1.5em; font-size: .92rem; color: var(--muted-light); }
.form__status.is-success { color: #7ee0a8; }
.form__status.is-error { color: #ff8a8a; }

/* ---------- Footer ---------- */
.footer { background: var(--navy); color: rgba(255,255,255,.65); border-top: 1px solid var(--line-dark); }
.footer a:not(.brand) { color: var(--white); border-bottom: 1px solid rgba(255,255,255,.3); transition: border-color .3s; }
.footer a:not(.brand):hover { border-color: var(--glow); }
.footer__inner {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px;
  padding-block: 30px; font-size: .85rem;
}

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}