/* =========================================================================
   REPLICATOR — landing page styles
   White, calm, premium. Near-black ink, monochrome accent.
   ========================================================================= */

/* ---------- Tokens ---------- */
:root {
  --ink:        #15140f;          /* warm near-black */
  --ink-2:      #4a4842;          /* secondary text */
  --ink-3:      #8c8a82;          /* muted / captions */
  --line:       rgba(21,20,15,0.10);
  --line-soft:  rgba(21,20,15,0.06);
  --paper:      #ffffff;
  --paper-2:    #faf9f6;          /* faint warm panel */
  --paper-3:    #f4f2ec;          /* placeholder field */
  --accent:     #15140f;          /* black accent (per brief) */
  --dot:        rgba(21,20,15,0.10);

  --r-sm: 8px;
  --r:    14px;
  --r-lg: 22px;

  --shadow-sm: 0 1px 2px rgba(21,20,15,0.05);
  --shadow:    0 1px 2px rgba(21,20,15,0.05), 0 18px 40px -28px rgba(21,20,15,0.40);
  --shadow-lg: 0 1px 2px rgba(21,20,15,0.05), 0 40px 80px -40px rgba(21,20,15,0.40);

  --maxw: 1200px;
  --pad:  clamp(20px, 5vw, 64px);

  --sans: "Schibsted Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  font-size: 17px;
  line-height: 1.5;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.025em; line-height: 1.04; text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }
a { color: inherit; text-decoration: none; }

.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 500;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding-inline: var(--pad); }

/* ---------- Buttons ---------- */
.btn {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.01em;
  border: none;
  border-radius: 999px;
  padding: 13px 22px;
  cursor: pointer;
  transition: transform .18s ease, background .18s ease, opacity .18s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { transform: translateY(-1px); background: #2a2820; }
.btn-ghost { background: transparent; color: var(--ink); padding: 10px 16px; }
.btn-ghost:hover { background: var(--paper-3); }

/* ---------- Top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.78);
  backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--line-soft);
}
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 19px; letter-spacing: -0.03em; }
.brand-logo { display: block; height: 26px; width: auto; flex: none; }
.brand .mark {
  width: 22px; height: 22px; border-radius: 6px;
  background: var(--ink); position: relative; flex: none;
}
.brand .mark::after {
  content: ""; position: absolute; inset: 6px;
  border: 1.5px solid #fff; border-radius: 3px;
  box-shadow: 3px 3px 0 -1px rgba(255,255,255,0.55);
}

/* ---------- Hero ---------- */
.hero { padding-top: clamp(48px, 8vw, 96px); padding-bottom: clamp(20px, 4vw, 40px); }
.hero-head { max-width: 880px; margin: 0 auto; text-align: center; }
.hero-lead {
  font-size: clamp(18px, 2.4vw, 23px);
  color: var(--ink-3);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-top: 18px;
}
.hero h1 {
  font-size: clamp(40px, 6.6vw, 78px);
  margin-top: 8px;
}
.hero-sub {
  font-size: clamp(17px, 2vw, 20px);
  color: var(--ink-2);
  max-width: 660px;
  margin: 22px auto 0;
}

/* signup */
.signup { display: flex; gap: 10px; max-width: 460px; margin: 30px auto 0; }
.signup.center { justify-content: center; }
.field {
  flex: 1;
  font-family: var(--sans);
  font-size: 16px;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 13px 20px;
  transition: border-color .18s ease, box-shadow .18s ease;
}
.field::placeholder { color: var(--ink-3); }
.field:focus { outline: none; border-color: var(--ink); box-shadow: 0 0 0 4px rgba(21,20,15,0.06); }
.signup-note { font-family: var(--mono); font-size: 12px; color: var(--ink-3); margin-top: 12px; text-align: center; letter-spacing: 0.02em; }
.signup-error {
  font-family: var(--mono); font-size: 12px; color: #8b2e2e;
  margin: 10px auto 0; max-width: 460px; text-align: center;
}
.signup-error[hidden] { display: none; }
.signup .btn:disabled { opacity: 0.65; cursor: wait; transform: none; }
.hp-field {
  position: absolute; left: -9999px; width: 1px; height: 1px;
  overflow: hidden; opacity: 0; pointer-events: none;
}
.confirm {
  display: none;
  align-items: center; gap: 12px;
  max-width: 460px; margin: 30px auto 0;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 14px 22px;
  font-size: 15px; font-weight: 500;
  animation: pop .4s cubic-bezier(.2,.8,.2,1);
}
.confirm.show { display: flex; }
.confirm .tick {
  flex: none; width: 22px; height: 22px; border-radius: 50%;
  background: var(--ink); color: #fff;
  display: grid; place-items: center; font-size: 12px;
}
@keyframes pop { from { opacity: 0; transform: translateY(8px) scale(.98); } to { opacity: 1; transform: none; } }

/* =========================================================================
   HERO BOARD — self-building node canvas
   ========================================================================= */
.board-wrap { margin-top: clamp(40px, 6vw, 72px); }
.board-tabs-row { display: flex; justify-content: center; margin-bottom: 20px; }
.board-tabs {
  display: inline-flex; gap: 4px; padding: 4px;
  background: #fff; border: 1px solid var(--line);
  border-radius: 999px; box-shadow: var(--shadow-sm);
}
.board-tab {
  font-family: var(--sans); font-size: 14px; font-weight: 500; letter-spacing: -0.01em;
  border: none; background: transparent; color: var(--ink-3);
  padding: 9px 24px; border-radius: 999px; cursor: pointer;
  transition: color .2s ease, background .2s ease;
}
.board-tab:hover { color: var(--ink); }
.board-tab.is-active { background: var(--ink); color: #fff; }
.board-shell {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: clamp(20px, 3.2vw, 48px);
  background:
    radial-gradient(var(--dot) 1.1px, transparent 1.1px);
  background-color: var(--paper-2);
  background-size: 22px 22px;
  background-position: -1px -1px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  position: relative;
}
.board-shell::after { /* soft edge fade so cards don't collide with the border */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  box-shadow: inset 0 0 60px 8px rgba(255,255,255,0.55);
  border-radius: inherit;
}
.board-viewport { position: relative; width: 100%; overflow: hidden; }
.board-canvas {
  position: absolute; top: 0; left: 0;
  transform-origin: top left;
}

/* connectors live behind cards */
.board-svg { position: absolute; top: 0; left: 0; overflow: visible; }
.board-svg path {
  fill: none;
  stroke: rgba(21,20,15,0.28);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-dasharray: var(--len);
  stroke-dashoffset: var(--len);
  transition: stroke-dashoffset .55s cubic-bezier(.4,0,.2,1);
}
.board-svg path.drawn { stroke-dashoffset: 0; }
.port-dot { fill: #fff; stroke: rgba(21,20,15,0.45); stroke-width: 1.4; opacity: 0; transition: opacity .3s ease; }
.port-dot.on { opacity: 1; }

/* row label */
.row-tag {
  position: absolute;
  font-family: var(--mono);
  font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-3);
  display: flex; align-items: center; gap: 8px;
  opacity: 0; transition: opacity .5s ease;
}
.row-tag.in { opacity: 1; }
.row-tag .pill { width: 7px; height: 7px; border-radius: 50%; background: var(--ink); }

/* node card */
.node {
  position: absolute;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  opacity: 0;
  transform: translateY(10px) scale(.96);
  transition: opacity .5s cubic-bezier(.2,.8,.2,1), transform .5s cubic-bezier(.2,.8,.2,1), box-shadow .3s ease;
}
.node.in { opacity: 1; transform: none; }
.node.pulse { box-shadow: var(--shadow), 0 0 0 3px rgba(21,20,15,0.06); }

.node-head {
  display: flex; align-items: center; gap: 7px;
  padding: 9px 11px;
  border-bottom: 1px solid var(--line-soft);
}
.node-head .ico { width: 13px; height: 13px; flex: none; color: var(--ink-2); }
.node-head .ttl { font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.02em; color: var(--ink); flex: 1; }
.node-body { padding: 8px; }

/* media */
.media {
  position: relative;
  width: 100%; height: 100%;
  border-radius: 7px; overflow: hidden;
  background: var(--paper-3);
}
.media img, .media video { width: 100%; height: 100%; object-fit: contain; display: block; transition: opacity .35s ease; }
.media.generating img, .media.generating video { opacity: 0; }
.media .ph {
  position: absolute; inset: 0;
  background:
    repeating-linear-gradient(45deg, rgba(21,20,15,0.045) 0 7px, transparent 7px 14px),
    var(--paper-3);
  display: grid; place-items: center;
  text-align: center; padding: 8px;
}
.media .ph span {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.06em;
  color: var(--ink-3); text-transform: lowercase; line-height: 1.4;
}
/* generating shimmer */
.media .shimmer {
  position: absolute; inset: 0; z-index: 2;
  background:
    linear-gradient(100deg, transparent 20%, rgba(255,255,255,0.65) 50%, transparent 80%),
    var(--paper-3);
  background-size: 220% 100%;
  animation: sweep 1.1s linear infinite;
  opacity: 0; pointer-events: none; transition: opacity .3s ease;
}
.media .shimmer.on { opacity: 1; }
@keyframes sweep { from { background-position: 140% 0; } to { background-position: -60% 0; } }

/* change / prompt card */
.node.change { }
.node.change .note {
  font-family: var(--sans);
  font-size: 14px; font-weight: 500; line-height: 1.32;
  color: var(--ink);
  letter-spacing: -0.01em;
  padding: 2px 2px 4px;
}
.node.change .quote { color: var(--ink-3); font-family: var(--mono); font-size: 11px; display:block; margin-bottom: 4px; letter-spacing: .04em; }
.caret { display: inline-block; width: 1px; height: 0.95em; background: var(--ink); margin-left: 2px; vertical-align: -1px; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* =========================================================================
   Generic sections
   ========================================================================= */
.section { padding: clamp(64px, 9vw, 128px) 0; }
.section-head { max-width: 720px; }
.section-head.center { margin: 0 auto; text-align: center; }
.section h2 { font-size: clamp(30px, 4.6vw, 50px); }
.section-head p { color: var(--ink-2); font-size: clamp(17px, 2vw, 20px); margin-top: 16px; }
.divider { height: 1px; background: var(--line-soft); }

/* how it works */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(20px, 3vw, 40px); margin-top: clamp(40px, 5vw, 64px); }
.step { position: relative; }
.step .num { font-family: var(--mono); font-size: 12px; color: var(--ink-3); letter-spacing: 0.1em; }
.step h3 { font-size: clamp(22px, 2.6vw, 28px); margin-top: 14px; }
.step p { color: var(--ink-2); margin-top: 10px; font-size: 16px; }
.step .arrow { position: absolute; top: -2px; right: -8px; color: var(--line); font-size: 22px; }
.step:last-child .arrow { display: none; }

/* what you get */
.values { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin-top: clamp(40px, 5vw, 64px); background: var(--line-soft); border: 1px solid var(--line-soft); border-radius: var(--r-lg); overflow: hidden; }
.value { background: var(--paper); padding: clamp(28px, 4vw, 44px); }
.value .vk { font-family: var(--mono); font-size: 12px; color: var(--ink-3); letter-spacing: 0.08em; }
.value h3 { font-size: clamp(20px, 2.4vw, 26px); margin-top: 14px; }
.value p { color: var(--ink-2); margin-top: 10px; font-size: 16px; }

/* before & after */
.ba-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 4vw, 56px); margin-top: clamp(40px, 5vw, 64px); }
.ba:only-child { grid-column: 1 / -1; }
.ba .ba-label { font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; color: var(--ink-3); text-transform: uppercase; margin-bottom: 16px; }
.ba-pairs { display: flex; flex-direction: column; gap: clamp(24px, 4vw, 40px); }
.ba .pair { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 16px; }
.ba .shot { aspect-ratio: 4/5; border-radius: var(--r); overflow: hidden; border: 1px solid var(--line); background: var(--paper-3); position: relative; box-shadow: var(--shadow-sm); }
.ba.video .shot { aspect-ratio: 9/16; }
.ba .shot img, .ba .shot video { width: 100%; height: 100%; object-fit: cover; display: block; }
.ba .ph { position: absolute; inset: 0; background: repeating-linear-gradient(45deg, rgba(21,20,15,0.045) 0 8px, transparent 8px 16px), var(--paper-3); display: grid; place-items: center; }
.ba .ph span { font-family: var(--mono); font-size: 11px; color: var(--ink-3); text-transform: lowercase; }
.ba .corner { font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); position: absolute; top: 10px; left: 10px; background: rgba(255,255,255,0.85); padding: 3px 7px; border-radius: 5px; }
.ba .arrow { color: var(--ink-3); font-size: 20px; }

/* who it's for */
.who { background: var(--ink); color: #fff; border-radius: var(--r-lg); padding: clamp(40px, 6vw, 80px); }
.who .eyebrow { color: rgba(255,255,255,0.55); }
.who h2 { font-size: clamp(28px, 4vw, 46px); color: #fff; margin-top: 18px; }
.who p { color: rgba(255,255,255,0.72); font-size: clamp(17px, 2vw, 20px); margin-top: 18px; max-width: 720px; }
.who .tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; }
.who .tag { font-family: var(--mono); font-size: 12px; letter-spacing: 0.04em; color: rgba(255,255,255,0.85); border: 1px solid rgba(255,255,255,0.2); border-radius: 999px; padding: 8px 14px; }

/* closing cta */
.closing { text-align: center; }
.closing h2 { font-size: clamp(34px, 5.4vw, 64px); }
.closing .tagline { font-size: clamp(18px, 2.2vw, 22px); color: var(--ink-3); margin-top: 18px; font-weight: 500; }

/* footer */
footer { border-top: 1px solid var(--line-soft); padding: 48px 0; }
footer .wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
footer .fnote { color: var(--ink-3); font-size: 14px; }

/* ---------- Responsive ---------- */
@media (max-width: 760px) {
  .signup { flex-direction: column; align-items: stretch; }
  .signup .btn { width: 100%; }
  .steps { grid-template-columns: 1fr; gap: 32px; }
  .step .arrow { display: none; }
  .values { grid-template-columns: 1fr; }
  .ba-grid { grid-template-columns: 1fr; }
  .topbar .wrap { height: 60px; }
}