/* =========================================================
   KieselOps — editorial-technical landing page
   Palette: warm cream · warm near-black · single electric-blue accent
   Type: Newsreader (display) · Geist (body) · Geist Mono (accents)
   ========================================================= */

:root {
  /* palette */
  --bg:        #F5F2EB;   /* warm cream */
  --card:      #F8F6F1;   /* card cream, slightly lighter */
  --ink:       #0E0E0C;   /* warm near-black */
  --ink-2:     #4A4A45;   /* warm gray */
  --border:    #D9D4C7;   /* cream-toned divider */
  --accent:    #1A4FE0;   /* electric blue — used sparingly */

  /* type */
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans:  "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono:  "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  /* layout */
  --maxw: 1180px;
  --gutter: clamp(22px, 5vw, 72px);
  --section-gap: clamp(104px, 14vw, 184px);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, p { margin: 0; text-wrap: pretty; }

/* ---------- faint grain overlay ---------- */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.04;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%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");
}

/* ---------- layout helpers ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }

section { padding-block: var(--section-gap); }

/* section eyebrow: hairline + mono register label */
.eyebrow {
  font-family: var(--mono);
  font-weight: 400;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-2);
  padding-top: 16px;
  border-top: 1px solid var(--border);
  margin-bottom: clamp(28px, 5vw, 52px);
}
.eyebrow .n { color: var(--ink); }

/* headings */
.display {
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--ink);
}
h2.heading {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(2rem, 4.4vw, 3.25rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 18ch;
}
em { font-style: italic; }

/* lede / subheads */
.lede {
  font-size: clamp(1.12rem, 1.7vw, 1.32rem);
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 46ch;
}

/* ---------- links ---------- */
.ulink {
  position: relative;
  text-decoration: none;
  color: var(--ink);
  font-weight: 500;
  background-image: linear-gradient(var(--accent), var(--accent));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 1.5px;
  transition: background-size 0.32s cubic-bezier(.22,.61,.36,1), color 0.2s ease;
  padding-bottom: 1px;
}
.ulink:hover { background-size: 100% 1.5px; color: var(--accent); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--sans);
  font-weight: 500;
  font-size: 1rem;
  line-height: 1;
  padding: 17px 26px;
  text-decoration: none;
  border: 1px solid var(--accent);
  border-radius: 2px;
  transition: background-color 0.25s ease, color 0.25s ease;
}
.btn .arw { transition: transform 0.3s cubic-bezier(.22,.61,.36,1); }
.btn:hover .arw { transform: translateX(4px); }

.btn-primary { background: var(--accent); color: var(--bg); }
.btn-primary:hover { background: var(--ink); border-color: var(--ink); color: var(--bg); }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease;
}
.nav.scrolled { border-bottom-color: var(--border); }
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 1.02rem;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--ink);
}
.brand .dot { color: var(--accent); }

/* ============================================================
   HERO
   ============================================================ */
.hero { padding-top: clamp(56px, 9vw, 104px); padding-bottom: var(--section-gap); }
.hero h1 {
  font-size: clamp(2.7rem, 7.2vw, 6rem);
  max-width: 16ch;
  margin-bottom: clamp(34px, 5vw, 52px);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  gap: clamp(36px, 6vw, 88px);
  align-items: end;
}
.hero-cta-row { display: flex; flex-direction: column; align-items: flex-start; gap: 18px; }
.hero-note { font-size: 0.95rem; color: var(--ink-2); max-width: 34ch; }

/* hero aside — mono colophon, right column */
.hero-aside {
  border-left: 1px solid var(--border);
  padding-left: clamp(20px, 2.4vw, 32px);
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--ink-2);
  line-height: 1.9;
}
.hero-aside dt { color: var(--ink); text-transform: uppercase; letter-spacing: 0.13em; font-size: 0.66rem; }
.hero-aside dd { margin: 2px 0 18px; }
.hero-aside dd:last-child { margin-bottom: 0; }

/* ============================================================
   DEMO
   ============================================================ */
.demo .lede { margin-top: 20px; }
.video-frame {
  margin-top: clamp(40px, 6vw, 64px);
  position: relative;
  aspect-ratio: 16 / 9;
  width: 100%;
  border: 1px solid var(--border);
  background: var(--card);
  overflow: hidden;
}
.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
/* placeholder shown until a real Loom url is pasted in */
.video-ph {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink-2);
  text-align: center;
  padding: 24px;
}
.video-ph .play {
  width: 54px; height: 54px; border-radius: 50%;
  border: 1px solid var(--border);
  display: grid; place-items: center;
  margin-bottom: 6px;
}
.video-ph .play::after {
  content: ""; width: 0; height: 0; margin-left: 3px;
  border-style: solid; border-width: 8px 0 8px 13px;
  border-color: transparent transparent transparent var(--ink-2);
}

/* ============================================================
   PROBLEM — vertical accent line, no cards
   ============================================================ */
.problem-list {
  margin-top: clamp(40px, 6vw, 64px);
  display: grid;
  gap: clamp(34px, 5vw, 52px);
  max-width: 760px;
}
.issue {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding-left: 26px;
  border-left: 2px solid var(--border);
}
.issue .tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.issue p {
  font-size: clamp(1.18rem, 2.2vw, 1.5rem);
  font-family: var(--serif);
  line-height: 1.4;
  color: var(--ink);
  font-weight: 400;
}

/* ============================================================
   PACKAGES
   ============================================================ */
.cards {
  margin-top: clamp(44px, 6vw, 68px);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 1.6vw, 22px);
}
.card {
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: clamp(28px, 3vw, 48px);
}
.card.popular { border-color: var(--ink); }
.card-flag {
  display: inline-block;
  align-self: flex-start;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 2px;
  padding: 5px 9px;
  margin-bottom: 22px;
}
.card-name {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.5rem, 2.4vw, 1.85rem);
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--ink);
}
.price {
  font-family: var(--mono);
  font-weight: 400;
  font-size: clamp(2.4rem, 3.6vw, 3.2rem);
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-top: 18px;
  line-height: 1;
  display: flex;
  align-items: flex-start;
  gap: 2px;
}
.price .cur { font-size: 0.46em; transform: translateY(0.18em); color: var(--ink-2); }
.price .per { font-size: 0.34em; align-self: flex-end; transform: translateY(-0.35em); color: var(--ink-2); letter-spacing: 0.02em; }
.price.range { font-size: clamp(1.7rem, 2.6vw, 2.3rem); }
.delivery {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-top: 14px;
}
.card hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 26px 0 24px;
}
.feat { list-style: none; padding: 0; margin: 0; display: grid; gap: 13px; }
.feat li {
  position: relative;
  padding-left: 22px;
  font-size: 0.96rem;
  line-height: 1.5;
  color: var(--ink-2);
}
.feat li::before {
  content: "→";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.85em;
}
.card .btn-card {
  margin-top: auto;
  padding-top: 30px;
}
.card .btn-card a {
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ============================================================
   PROCESS — four horizontal steps
   ============================================================ */
.steps {
  margin-top: clamp(44px, 6vw, 68px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(20px, 2.4vw, 34px);
}
.step { padding-top: 18px; border-top: 1px solid var(--border); }
.step .num {
  font-family: var(--mono);
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  color: var(--ink);
  margin-bottom: 14px;
}
.step p { font-size: 1.02rem; line-height: 1.45; color: var(--ink-2); }

/* ============================================================
   ABOUT — asymmetric, decorative node graph right
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: start;
}
.about-copy { max-width: 40ch; }
.about-copy h2.heading { margin-bottom: clamp(26px, 4vw, 40px); }
.about-copy p {
  font-family: var(--serif);
  font-size: clamp(1.18rem, 2vw, 1.42rem);
  line-height: 1.5;
  color: var(--ink);
  margin-bottom: 22px;
  font-weight: 400;
}
.about-copy p:last-child { margin-bottom: 0; }
.about-copy .sig {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-top: 30px;
}

/* node graph */
.graph {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 3px;
  padding: clamp(26px, 3vw, 40px);
}
.graph .glabel {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-bottom: 26px;
}
.node {
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  color: var(--ink);
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: 2px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.node .meta { color: var(--ink-2); font-size: 0.72rem; }
.node.hot { border-color: var(--accent); }
.node.hot .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent); flex: none;
}
.connector {
  width: 1px; height: 22px; margin-left: 18px;
  background: var(--border);
}

/* ============================================================
   FAQ — accordion
   ============================================================ */
.faq-list { margin-top: clamp(40px, 5vw, 60px); max-width: 800px; border-top: 1px solid var(--border); }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: none;
  border: 0;
  text-align: left;
  cursor: pointer;
  padding: 26px 0;
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.18rem, 2vw, 1.5rem);
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--ink);
  transition: color 0.2s ease;
}
.faq-q:hover { color: var(--accent); }
.faq-toggle {
  flex: none;
  position: relative;
  width: 18px; height: 18px;
  margin-top: 6px;
}
.faq-toggle::before, .faq-toggle::after {
  content: ""; position: absolute; background: var(--ink-2);
  transition: transform 0.3s cubic-bezier(.22,.61,.36,1), opacity 0.2s ease;
}
.faq-toggle::before { left: 0; top: 50%; width: 100%; height: 1.5px; transform: translateY(-50%); }
.faq-toggle::after  { top: 0; left: 50%; height: 100%; width: 1.5px; transform: translateX(-50%); }
.faq-item.open .faq-toggle::after { transform: translateX(-50%) rotate(90deg); opacity: 0; }
.faq-a {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.4s cubic-bezier(.22,.61,.36,1);
}
.faq-a-inner {
  padding: 0 56px 30px 0;
  font-size: 1.04rem;
  line-height: 1.6;
  color: var(--ink-2);
  max-width: 62ch;
}

/* ============================================================
   FINAL CTA
   ============================================================ */
.final { text-align: center; padding-block: clamp(120px, 18vw, 220px); }
.final .display {
  font-size: clamp(2.2rem, 5.5vw, 4rem);
  max-width: 16ch;
  margin: 0 auto clamp(38px, 5vw, 52px);
}
.final .mailto {
  display: block;
  margin-top: 26px;
  font-family: var(--mono);
  font-size: 0.84rem;
  letter-spacing: 0.04em;
  color: var(--ink-2);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer { border-top: 1px solid var(--border); padding-block: 40px; }
.footer p {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--ink-2);
  line-height: 1.9;
}
.footer .sep { opacity: 0.5; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-aside { border-left: 0; border-top: 1px solid var(--border); padding-left: 0; padding-top: 24px; }
  .cards { grid-template-columns: 1fr; max-width: 460px; }
  .steps { grid-template-columns: repeat(2, 1fr); gap: 36px 28px; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .graph { max-width: 460px; }
}

@media (max-width: 540px) {
  body { font-size: 16px; }
  .steps { grid-template-columns: 1fr; }
  .hero-aside dl { display: grid; grid-template-columns: 1fr 1fr; gap: 0 18px; }
  .btn { width: 100%; justify-content: center; }
  .card .btn-card a, .nav .btn { width: auto; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}