/* ============================================================
   Notion HQ — cyanotype blueprint system
   Type as concept:  serif = the notion · mono = the system
   ============================================================ */

:root {
  /* ---- Cyanotype palette ---- */
  --ink:        #0b2138;   /* prussian ground            */
  --ink-2:      #0e2a47;   /* lifted panel               */
  --ink-3:      #123253;   /* hover / border lift        */
  --chalk:      #eaf2f6;   /* primary text / linework    */
  --chalk-dim:  #a9c2d4;   /* secondary text             */
  --chalk-mute: #6f90a7;   /* captions / faint labels    */
  --cyan:       #7fd1ff;   /* structural accent (system) */
  --cyan-deep:  #4aa8e0;
  --amber:      #ff8a47;   /* the human notion (warm)    */
  --amber-soft: #ffb488;

  --line:       rgba(127, 209, 255, 0.16);  /* hairline grid   */
  --line-2:     rgba(127, 209, 255, 0.30);  /* frame / dividers */

  /* ---- Type ---- */
  --serif: "Newsreader", Georgia, serif;
  --mono:  "JetBrains Mono", ui-monospace, "SF Mono", monospace;
  --sans:  "Hanken Grotesk", system-ui, -apple-system, sans-serif;

  /* ---- Metrics ---- */
  --wrap: 1180px;
  --gutter: clamp(1.25rem, 5vw, 4rem);
  --radius: 3px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--chalk);
  font-family: var(--sans);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  line-height: 1.6;
  letter-spacing: 0.005em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--amber); color: var(--ink); }

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

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

/* ============================================================
   Blueprint sheet — fixed grid + drawing frame
   ============================================================ */
.sheet { position: fixed; inset: 0; z-index: 0; pointer-events: none; }

.sheet__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 34px 34px;
  -webkit-mask-image: radial-gradient(120% 90% at 50% 0%, #000 40%, transparent 100%);
          mask-image: radial-gradient(120% 90% at 50% 0%, #000 40%, transparent 100%);
  opacity: 0;
  animation: grid-in 1.2s var(--ease) 0.1s forwards;
}
/* subtle major grid every 5 cells */
.sheet__frame {
  position: absolute; inset: clamp(10px, 1.4vw, 22px);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  -webkit-mask-image: linear-gradient(#000, #000);
}
.sheet__frame::before {
  /* corner ticks — like a drawing sheet */
  content: "";
  position: absolute; inset: 7px;
  border: 1px solid var(--line);
  border-radius: 1px;
  clip-path: polygon(0 0,26px 0,26px 1px,1px 1px,1px 26px,0 26px,
    0 100%,26px 100%,26px calc(100% - 1px),1px calc(100% - 1px),1px calc(100% - 26px),0 calc(100% - 26px),
    100% 0, calc(100% - 26px) 0, calc(100% - 26px) 1px, calc(100% - 1px) 1px, calc(100% - 1px) 26px, 100% 26px,
    100% 100%, calc(100% - 26px) 100%, calc(100% - 26px) calc(100% - 1px), calc(100% - 1px) calc(100% - 1px), calc(100% - 1px) calc(100% - 26px), 100% calc(100% - 26px));
  opacity: 0.6;
}

@keyframes grid-in { to { opacity: 1; } }

/* ============================================================
   Layout primitives
   ============================================================ */
.nav, .hero, .section, .foot, .strip { position: relative; z-index: 1; }

.section {
  max-width: var(--wrap);
  margin-inline: auto;
  padding: clamp(4.5rem, 9vw, 8rem) var(--gutter);
}

.skip {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--amber); color: var(--ink);
  padding: 0.6rem 1rem; font: 600 0.9rem var(--sans); border-radius: var(--radius);
}
.skip:focus { left: 1rem; top: 1rem; }

/* ============================================================
   Nav
   ============================================================ */
.nav {
  max-width: var(--wrap);
  margin-inline: auto;
  padding: 1.5rem var(--gutter);
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
}
.nav { position: sticky; top: 0; z-index: 50; transition: background 0.3s var(--ease), border-color 0.3s; border-bottom: 1px solid transparent; }
.nav--scrolled {
  background: rgba(9, 26, 44, 0.82);
  backdrop-filter: blur(12px) saturate(1.2);
  border-bottom-color: var(--line-2);
}
.nav__brand { display: flex; align-items: center; gap: 0.6rem; color: var(--chalk); }
.mark { color: var(--cyan); display: grid; place-items: center; transition: transform 0.4s var(--ease); }
.nav__brand:hover .mark { transform: rotate(-90deg); }

.nav__wordmark {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}
.nav__hq { color: var(--cyan); }

.nav__links { display: flex; align-items: center; gap: 2rem; }
.nav__links a {
  font-size: 0.9rem; color: var(--chalk-dim); font-weight: 500;
  transition: color 0.2s;
  position: relative;
}
.nav__links a:not(.nav__cta):hover { color: var(--chalk); }
.nav__links a:not(.nav__cta)::after {
  content: ""; position: absolute; left: 0; bottom: -5px; height: 1px; width: 0;
  background: var(--cyan); transition: width 0.25s var(--ease);
}
.nav__links a:not(.nav__cta):hover::after { width: 100%; }

.nav__cta {
  color: var(--ink) !important; background: var(--chalk);
  padding: 0.5rem 1rem; border-radius: var(--radius);
  font-weight: 600; transition: background 0.2s, transform 0.2s;
}
.nav__cta:hover { background: var(--cyan); transform: translateY(-1px); }

.nav__menu {
  display: none; background: none; border: 1px solid var(--line-2);
  border-radius: var(--radius); width: 42px; height: 38px; cursor: pointer;
  flex-direction: column; gap: 5px; align-items: center; justify-content: center;
}
.nav__menu span { display: block; width: 18px; height: 1.5px; background: var(--chalk); transition: 0.3s var(--ease); }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  max-width: var(--wrap);
  margin-inline: auto;
  padding: clamp(2.5rem, 7vw, 5.5rem) var(--gutter) clamp(2rem, 4vw, 3rem);
}

.hero__meta { display: flex; align-items: center; gap: 1.25rem; flex-wrap: wrap; margin-bottom: clamp(1.75rem, 4vw, 2.75rem); }

.tag {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--cyan);
  border: 1px solid var(--line-2); border-radius: 100px;
  padding: 0.4rem 0.85rem;
  display: inline-flex; align-items: center; gap: 0.5rem;
}
.tag::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 10px var(--amber); }

.hero__dim {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.08em;
  color: var(--chalk-mute); text-transform: uppercase;
}

.hero__title {
  margin: 0;
  font-weight: 400;
  font-size: clamp(3rem, 10.5vw, 8.5rem);
  line-height: 0.94;
  letter-spacing: -0.02em;
  font-family: var(--sans);
}
.hero__title .line { display: block; overflow: hidden; }
.hero__title .line > * , .hero__title .line { will-change: transform; }

/* animated reveal per line */
.reveal-line { display: inline-block; transform: translateY(110%); }

.hero__title .notion {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 500;
  color: var(--amber);
  letter-spacing: -0.01em;
}
.hero__title .system {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.74em;
  color: var(--cyan);
  letter-spacing: -0.03em;
}
.cursor {
  display: inline-block; width: 0.5ch; height: 0.82em;
  background: var(--cyan); margin-left: 0.12em;
  transform: translateY(0.08em);
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero__lede {
  max-width: 44ch;
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
  font-size: clamp(1.075rem, 1rem + 0.5vw, 1.3rem);
  line-height: 1.55;
  color: var(--chalk-dim);
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: clamp(2rem, 4vw, 2.75rem); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-family: var(--sans); font-weight: 600; font-size: 0.98rem;
  padding: 0.85rem 1.4rem; border-radius: var(--radius);
  border: 1px solid transparent; cursor: pointer;
  transition: transform 0.2s var(--ease), background 0.2s, border-color 0.2s, color 0.2s;
}
.btn--primary { background: var(--amber); color: var(--ink); }
.btn--primary:hover { background: var(--amber-soft); transform: translateY(-2px); }
.btn--ghost { background: transparent; color: var(--chalk); border-color: var(--line-2); }
.btn--ghost:hover { border-color: var(--cyan); color: var(--cyan); }
.btn__arr { transition: transform 0.2s var(--ease); }
.btn--ghost:hover .btn__arr { transform: translateX(4px); }
.btn--lg { font-family: var(--mono); font-size: 1.05rem; padding: 1rem 1.6rem; letter-spacing: -0.01em; }

/* ---- Hero dimension line ---- */
.hero__dimension { margin-top: clamp(2.5rem, 6vw, 4rem); display: flex; align-items: center; gap: 1rem; }
.dim-line { display: flex; align-items: center; flex: 1; max-width: 420px; }
.dim-tick { width: 1px; height: 12px; background: var(--cyan-deep); }
.dim-rule { flex: 1; height: 1px; background: var(--line-2); transform-origin: left; animation: rule-draw 1s var(--ease) 0.6s both; }
@keyframes rule-draw { from { transform: scaleX(0); } to { transform: scaleX(1); } }
.dim-label { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; color: var(--chalk-mute); text-transform: uppercase; white-space: nowrap; }

/* ============================================================
   Stack strip (marquee)
   ============================================================ */
.strip {
  border-top: 1px solid var(--line-2);
  border-bottom: 1px solid var(--line-2);
  overflow: hidden;
  background: rgba(9, 26, 44, 0.55);
  backdrop-filter: blur(2px);
}
.strip__track {
  display: inline-flex; align-items: center; gap: 1.5rem;
  white-space: nowrap; padding: 0.9rem 0;
  font-family: var(--mono); font-size: 0.85rem; letter-spacing: 0.04em;
  color: var(--chalk-dim);
  animation: marquee 34s linear infinite;
}
.strip__track span { color: var(--chalk); }
.strip__track i { color: var(--cyan); font-style: normal; }
.strip:hover .strip__track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ============================================================
   Section heads
   ============================================================ */
.section__head { max-width: 44ch; margin-bottom: clamp(2.5rem, 5vw, 4rem); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--cyan);
  margin-bottom: 1.25rem;
}
.eyebrow__no {
  display: grid; place-items: center; width: 22px; height: 22px;
  border: 1px solid var(--line-2); border-radius: 50%;
  font-size: 0.7rem; color: var(--chalk);
}

.section__title {
  margin: 0;
  font-family: var(--sans); font-weight: 600;
  font-size: clamp(2rem, 1.4rem + 3vw, 3.75rem);
  line-height: 1.02; letter-spacing: -0.02em;
}
.section__title .notion, .contact__title .notion {
  font-family: var(--serif); font-style: italic; font-weight: 500;
  color: var(--amber); letter-spacing: 0;
}
.section__sub {
  margin: 1.5rem 0 0; color: var(--chalk-dim);
  font-size: clamp(1rem, 0.95rem + 0.35vw, 1.15rem); max-width: 46ch;
}

/* ============================================================
   Service cards
   ============================================================ */
.cards {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px;
  background: var(--line-2); border: 1px solid var(--line-2); border-radius: var(--radius);
  overflow: hidden;
}
.card {
  background: var(--ink);
  padding: clamp(1.75rem, 3.5vw, 2.75rem);
  position: relative;
  transition: background 0.3s var(--ease);
}
.card:hover { background: var(--ink-2); }
.card__no {
  font-family: var(--mono); font-size: 0.8rem; color: var(--cyan);
  letter-spacing: 0.1em;
}
.card::after {
  /* corner registration mark, reveals on hover */
  content: "+"; position: absolute; top: 1.1rem; right: 1.25rem;
  font-family: var(--mono); color: var(--chalk-mute); font-size: 1rem;
  opacity: 0; transform: rotate(-45deg); transition: 0.3s var(--ease);
}
.card:hover::after { opacity: 1; transform: rotate(0); color: var(--amber); }

.card__title {
  margin: 1.1rem 0 0.4rem; font-weight: 600;
  font-size: clamp(1.35rem, 1.1rem + 0.9vw, 1.7rem); letter-spacing: -0.01em;
}
.card__tag {
  font-family: var(--mono); font-size: 0.78rem; color: var(--cyan);
  letter-spacing: 0.02em; margin: 0 0 1.1rem;
}
.card__body { margin: 0 0 1.4rem; color: var(--chalk-dim); font-size: 1rem; }
.card__list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.5rem; }
.card__list li {
  font-size: 0.9rem; color: var(--chalk-mute); padding-left: 1.2rem; position: relative;
  font-family: var(--mono); letter-spacing: -0.01em;
}
.card__list li::before {
  content: ""; position: absolute; left: 0; top: 0.55em;
  width: 6px; height: 1px; background: var(--cyan);
}

/* ============================================================
   Process steps
   ============================================================ */
.section--process { border-top: 1px solid var(--line); }
.steps { list-style: none; margin: 0; padding: 0; }
.step {
  display: grid;
  grid-template-columns: 4.5rem 1fr auto;
  gap: clamp(1rem, 3vw, 2.5rem); align-items: start;
  padding: clamp(1.75rem, 4vw, 2.5rem) 0;
  border-top: 1px solid var(--line-2);
}
.step:last-child { border-bottom: 1px solid var(--line-2); }
.step__no {
  font-family: var(--mono); font-size: clamp(1.1rem, 0.9rem + 1vw, 1.6rem);
  color: var(--cyan); font-weight: 500;
}
.step__title { margin: 0 0 0.5rem; font-size: clamp(1.4rem, 1.1rem + 1.2vw, 2rem); font-weight: 600; letter-spacing: -0.01em; }
.step__body p { margin: 0; color: var(--chalk-dim); max-width: 52ch; }
.step__deliv {
  font-family: var(--mono); font-size: 0.8rem; color: var(--chalk-mute);
  letter-spacing: 0.02em; white-space: nowrap; padding-top: 0.35rem;
}
.step:hover .step__deliv { color: var(--amber); }

/* ============================================================
   Principles
   ============================================================ */
.principles { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(1.5rem, 3vw, 2.5rem) clamp(2rem, 5vw, 4rem); }
.principle {
  padding-top: 1.5rem; border-top: 1px solid var(--line-2);
  position: relative;
}
.principle::before {
  content: ""; position: absolute; top: -1px; left: 0; width: 42px; height: 2px; background: var(--amber);
}
.principle h3 { margin: 0 0 0.5rem; font-size: 1.25rem; font-weight: 600; letter-spacing: -0.01em; }
.principle p { margin: 0; color: var(--chalk-dim); font-size: 0.98rem; }

/* ============================================================
   Contact + title block
   ============================================================ */
.section--contact { border-top: 1px solid var(--line); }
.contact { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(2.5rem, 5vw, 5rem); align-items: center; }
.contact__title {
  margin: 1.25rem 0 0; font-family: var(--sans); font-weight: 600;
  font-size: clamp(2.4rem, 1.6rem + 4vw, 4.5rem); line-height: 1.0; letter-spacing: -0.025em;
}
.contact__sub { margin: 1.5rem 0 2rem; color: var(--chalk-dim); max-width: 40ch; font-size: 1.1rem; }
.contact__alt { margin: 1.25rem 0 0; font-size: 0.92rem; color: var(--chalk-mute); }
.contact__alt a { color: var(--cyan); border-bottom: 1px solid var(--line-2); transition: border-color 0.2s; }
.contact__alt a:hover { border-color: var(--cyan); }

/* title block — the drafting signature */
.titleblock {
  border: 1px solid var(--line-2); border-radius: var(--radius);
  background: linear-gradient(180deg, var(--ink-2), var(--ink));
  font-family: var(--mono);
  overflow: hidden;
  box-shadow: 0 24px 60px -30px rgba(0,0,0,0.7);
}
.tb__row { display: flex; align-items: center; justify-content: space-between; padding: 0.85rem 1.1rem; }
.tb__row--head { border-bottom: 1px solid var(--line-2); background: rgba(127,209,255,0.05); }
.tb__brand { font-weight: 700; letter-spacing: 0.06em; color: var(--chalk); }
.tb__type { font-size: 0.68rem; letter-spacing: 0.12em; color: var(--cyan); }
.tb__grid { display: grid; grid-template-columns: repeat(2, 1fr); }
.tb__cell {
  padding: 0.85rem 1.1rem; border-top: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 0.25rem;
}
.tb__cell:nth-child(odd) { border-right: 1px solid var(--line); }
.tb__k { font-size: 0.62rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--chalk-mute); }
.tb__v { font-size: 0.9rem; color: var(--chalk); letter-spacing: -0.01em; }
.tb__v--live { color: var(--amber); display: inline-flex; align-items: center; gap: 0.4rem; }
.tb__v--live::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 8px var(--amber); animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: 0.35; } }
.tb__row--foot { border-top: 1px solid var(--line-2); }
.tb__row--foot .tb__k { color: var(--chalk-mute); }
.tb__row--foot .tb__v { color: var(--cyan); }

/* ============================================================
   Footer
   ============================================================ */
.foot {
  max-width: var(--wrap); margin: 0 auto;
  padding: clamp(2.5rem, 5vw, 3.5rem) var(--gutter);
  border-top: 1px solid var(--line-2);
  display: flex; flex-wrap: wrap; gap: 1.5rem 3rem; align-items: center; justify-content: space-between;
}
.foot__brand p { margin: 0.4rem 0 0; font-family: var(--serif); font-style: italic; color: var(--chalk-mute); font-size: 0.95rem; }
.foot__links { display: flex; gap: 1.75rem; flex-wrap: wrap; }
.foot__links a { font-size: 0.9rem; color: var(--chalk-dim); transition: color 0.2s; }
.foot__links a:hover { color: var(--cyan); }
.foot__legal { margin: 0; font-family: var(--mono); font-size: 0.78rem; color: var(--chalk-mute); letter-spacing: 0.02em; }

/* ============================================================
   Scroll reveal
   ============================================================ */
[data-animate] { opacity: 0; transform: translateY(24px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
[data-animate].in { opacity: 1; transform: none; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 860px) {
  .nav__links { display: none; }
  .nav__menu { display: flex; }
  .nav[data-open] .nav__links {
    display: flex; position: absolute; top: 100%; left: var(--gutter); right: var(--gutter);
    flex-direction: column; align-items: flex-start; gap: 1.25rem;
    background: var(--ink-2); border: 1px solid var(--line-2); border-radius: var(--radius);
    padding: 1.5rem; z-index: 20;
  }
  .cards { grid-template-columns: 1fr; }
  .principles { grid-template-columns: 1fr; }
  .contact { grid-template-columns: 1fr; }
  .step { grid-template-columns: 3rem 1fr; }
  .step__deliv { grid-column: 2; padding-top: 0.75rem; }
}

@media (max-width: 480px) {
  .hero__title { font-size: clamp(2.75rem, 15vw, 4rem); }
  .hero__dim { display: none; }
  .tb__grid { grid-template-columns: 1fr; }
  .tb__cell:nth-child(odd) { border-right: none; }
}

/* ============================================================
   Reduced motion + focus
   ============================================================ */
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 2px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  .sheet__grid { opacity: 1; }
  .reveal-line { transform: none; }
  [data-animate] { opacity: 1; transform: none; }
  .strip__track { animation: none; }
}