/* ProAgent Cinematic — LIGHT THEME · paper aesthetic */

:root {
  --bg-0: #f5f3ec;          /* warm cream paper */
  --bg-1: #faf8f3;
  --bg-2: #ffffff;
  --paper: #ffffff;
  --paper-fold: #e8e4d8;    /* back of folded corner */
  --surface: rgba(255, 255, 255, 0.7);
  --border: rgba(20, 24, 32, 0.08);
  --border-strong: rgba(20, 24, 32, 0.16);
  --text-1: #0f1216;
  --text-2: rgba(20, 24, 32, 0.62);
  --text-3: rgba(20, 24, 32, 0.42);
  --accent-h: 230;
  --accent: oklch(0.55 0.18 var(--accent-h));
  --accent-soft: oklch(0.75 0.10 var(--accent-h));
  --accent-glow: oklch(0.65 0.18 var(--accent-h) / 0.25);
  /* Category hues — muted, paper-friendly */
  --cat-legal:   oklch(0.55 0.16 230);
  --cat-finance: oklch(0.52 0.14 155);
  --cat-hr:      oklch(0.62 0.14 60);
  --cat-comp:    oklch(0.55 0.16 295);
  --shadow-sm: 0 1px 2px rgba(20,24,32,0.04), 0 1px 1px rgba(20,24,32,0.06);
  --shadow-md: 0 4px 10px rgba(20,24,32,0.06), 0 12px 24px rgba(20,24,32,0.08);
  --shadow-lg: 0 8px 24px rgba(20,24,32,0.08), 0 24px 60px rgba(20,24,32,0.12);
}

* { box-sizing: border-box; }
html { overflow-x: clip; }
body {
  margin: 0;
  padding: 0;
  background: var(--bg-0);
  color: var(--text-1);
  font-family: "Geist", ui-sans-serif, system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
.mono {
  font-family: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;
  font-feature-settings: "zero", "ss01";
  letter-spacing: 0.02em;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

/* ============ Background (light, subtle) ============ */
.bg-stack {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.bg-glow {
  position: absolute;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 90vw;
  height: 90vw;
  background: radial-gradient(circle at center,
    oklch(0.85 0.08 var(--accent-h) / 0.20) 0%,
    transparent 60%);
  filter: blur(40px);
}
.bg-grid {
  position: absolute;
  inset: -10%;
  background-image:
    linear-gradient(to right, rgba(20,24,32,0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(20,24,32,0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 50%, black 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 50%, black 0%, transparent 75%);
  opacity: 0.5;
}
.bg-noise { display: none; }
.bg-vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 50%, transparent 40%, rgba(0,0,0,0.04) 100%);
}

/* ============ Page chrome ============ */
.page { position: relative; z-index: 1; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 40px; }
@media (max-width: 800px) { .container { padding: 0 22px; } }

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 16px 0;
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  background: rgba(245, 243, 236, 0.7);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 500; }
.brand-name { font-size: 16px; letter-spacing: -0.01em; }
.brand-name .accent { color: var(--accent); }
.brand-tld { color: var(--text-3); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; margin-left: 4px; }
.nav-links { display: flex; gap: 26px; font-size: 13.5px; color: var(--text-2); }
.nav-links a:hover { color: var(--text-1); }
@media (max-width: 800px) { .nav-links { display: none; } }

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.005em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all .25s cubic-bezier(.4,0,.2,1);
  white-space: nowrap;
  background: transparent;
  color: var(--text-1);
}
.btn-primary {
  background: linear-gradient(180deg, #1a1d24 0%, #0c0e12 100%);
  color: #ffffff;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.06) inset,
    0 1px 0 rgba(255,255,255,0.12) inset,
    0 4px 14px rgba(20,24,32,0.18);
}
.btn-primary:hover {
  transform: translateY(-1px);
  background: linear-gradient(180deg, #232730 0%, #0e1115 100%);
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.08) inset,
    0 1px 0 rgba(255,255,255,0.16) inset,
    0 8px 24px rgba(20,24,32,0.22);
}
.btn-accent {
  background: var(--accent);
  color: #ffffff;
  box-shadow:
    0 0 0 1px oklch(0.55 0.18 var(--accent-h) / 0.5) inset,
    0 4px 14px oklch(0.55 0.18 var(--accent-h) / 0.3);
}
.btn-accent:hover {
  transform: translateY(-1px);
  filter: brightness(1.08);
}
.btn-ghost {
  background: var(--paper);
  color: var(--text-1);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}
.btn-ghost:hover {
  background: var(--bg-2);
  border-color: rgba(20, 24, 32, 0.24);
  transform: translateY(-1px);
}
.btn .arr { width: 12px; height: 12px; transition: transform .25s; }
.btn:hover .arr { transform: translateX(3px); }

/* ============ CINEMATIC STORY ============ */
.story-wrap {
  position: relative;
  height: 780vh;
  width: 100%;
}
.story-sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  width: 100%;
  overflow: hidden;
}
.stage {
  position: absolute;
  inset: 0;
  perspective: 1800px;
  perspective-origin: 50% 45%;
  transform-style: preserve-3d;
}
.stage-inner {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ============ Paper documents ============ */
.doc {
  position: absolute;
  left: 50%; top: 50%;
  width: 112px;
  height: 148px;
  margin-left: -56px;
  margin-top: -74px;
  border-radius: 2px;
  background: var(--paper);
  box-shadow:
    0 1px 0 rgba(0,0,0,0.04),
    0 2px 6px rgba(20,24,32,0.06),
    0 14px 30px rgba(20,24,32,0.12);
  padding: 14px 12px 10px;
  /* folded corner via clip-path */
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  transform-style: preserve-3d;
  will-change: transform, opacity, filter;
  backface-visibility: hidden;
  pointer-events: none;
}
/* The shadow triangle behind the fold */
.doc::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 18px;
  height: 18px;
  background: var(--paper-fold);
  /* triangle that shows the underside of the folded corner */
  clip-path: polygon(0 0, 100% 100%, 0 100%);
  box-shadow: -1px 1px 2px rgba(20,24,32,0.06);
}
/* Top accent stripe by category */
.doc::after {
  content: "";
  position: absolute;
  top: 8px;
  left: 12px;
  width: 26px;
  height: 3px;
  border-radius: 100px;
  background: var(--doc-accent, var(--accent));
}
.doc .doc-cat {
  font-family: "Geist Mono", monospace;
  font-size: 7.5px;
  letter-spacing: 0.16em;
  color: var(--doc-accent, var(--accent));
  margin-top: 14px;
  margin-bottom: 10px;
  font-weight: 500;
}
.doc .doc-line {
  height: 2px;
  background: rgba(20,24,32,0.14);
  border-radius: 1px;
  margin-bottom: 4px;
}
.doc .doc-line.short { width: 60%; }
.doc .doc-line.shorter { width: 40%; }
.doc .doc-block {
  height: 26px;
  background: rgba(20,24,32,0.04);
  border-radius: 2px;
  margin: 8px 0;
  border: 1px solid rgba(20,24,32,0.06);
}
.doc[data-cat="legal"]    { --doc-accent: var(--cat-legal); }
.doc[data-cat="finance"]  { --doc-accent: var(--cat-finance); }
.doc[data-cat="hr"]       { --doc-accent: var(--cat-hr); }
.doc[data-cat="comp"]     { --doc-accent: var(--cat-comp); }

/* ============ Scan / sort beams (replace AI orb) ============ */
/* Subtle radial sweep — no central orb */
.scan-svg {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 4;
  will-change: opacity;
}

/* A subtle "magnet point" indicator during sorting — minimal dot, not an orb */
.sort-points {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* ============ Stack labels ============ */
.stack-label {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%) translate(var(--lx, 0px), -160px);
  text-align: center;
  pointer-events: none;
  will-change: opacity, transform;
  z-index: 7;
  white-space: nowrap;
}
.stack-label .badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 100px;
  background: var(--cat-color, var(--accent));
  color: #ffffff;
  font-weight: 600;
  font-family: "Geist Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 8px;
  box-shadow: 0 4px 10px rgba(20,24,32,0.1);
}
.stack-label .meta {
  font-family: "Geist Mono", monospace;
  color: var(--text-3);
  font-size: 10px;
  letter-spacing: 0.06em;
}

/* ============ Folders ============ */
.folder {
  position: absolute;
  left: 50%; top: 50%;
  width: 180px;
  height: 132px;
  margin-left: -90px;
  margin-top: -66px;
  transform-style: preserve-3d;
  will-change: transform, opacity;
  pointer-events: none;
  z-index: 6;
}
.folder .body {
  position: absolute;
  inset: 0;
  border-radius: 4px 10px 10px 10px;
  background: linear-gradient(180deg, #ffffff 0%, #f4f1ea 100%);
  border: 1px solid var(--folder-accent, var(--border-strong));
  box-shadow:
    0 1px 0 rgba(255,255,255,0.8) inset,
    0 8px 16px rgba(20,24,32,0.08),
    0 24px 50px rgba(20,24,32,0.14);
}
.folder .tab {
  position: absolute;
  top: -8px;
  left: 14px;
  height: 14px;
  width: 72px;
  border-radius: 4px 4px 0 0;
  background: var(--folder-accent, var(--accent));
  box-shadow: 0 -2px 4px rgba(20,24,32,0.06);
}
.folder .seal {
  position: absolute;
  top: 50%; left: 50%;
  width: 70%;
  height: 1px;
  transform: translate(-50%, -50%);
  background: linear-gradient(90deg, transparent, var(--folder-accent, var(--accent)), transparent);
  opacity: 0.4;
}
.folder .info {
  position: absolute;
  bottom: 14px;
  left: 16px; right: 16px;
  font-family: "Geist Mono", monospace;
  font-size: 9px;
  color: var(--text-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.folder .info .title {
  color: var(--folder-accent);
  font-size: 11px;
  margin-bottom: 4px;
  font-weight: 600;
}
.folder[data-cat="legal"]    { --folder-accent: var(--cat-legal); }
.folder[data-cat="finance"]  { --folder-accent: var(--cat-finance); }
.folder[data-cat="hr"]       { --folder-accent: var(--cat-hr); }
.folder[data-cat="comp"]     { --folder-accent: var(--cat-comp); }

/* ============ Cabinet (white archive) ============ */
.cabinet {
  position: absolute;
  left: 50%; top: 50%;
  width: 540px;
  height: 460px;
  margin-left: -270px;
  margin-top: -230px;
  transform-style: preserve-3d;
  will-change: transform, opacity;
  pointer-events: none;
  z-index: 5;
}
.cabinet .frame {
  position: absolute;
  inset: 0;
  border-radius: 16px;
  background: linear-gradient(180deg, #ffffff 0%, #f4f1ea 100%);
  border: 1px solid var(--border-strong);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.8) inset,
    0 14px 30px rgba(20,24,32,0.08),
    0 40px 90px rgba(20,24,32,0.16);
}
.cabinet .header {
  position: absolute;
  top: 14px; left: 20px; right: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: "Geist Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--text-2);
  text-transform: uppercase;
  z-index: 2;
}
.cabinet .header .status {
  display: inline-flex; gap: 6px; align-items: center;
}
.cabinet .header .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: oklch(0.6 0.18 145);
  box-shadow: 0 0 0 3px oklch(0.6 0.18 145 / 0.18);
}
.cabinet .shelves {
  position: absolute;
  top: 44px; left: 18px; right: 18px; bottom: 18px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 14px;
}
.cabinet .shelf {
  position: relative;
  border-radius: 10px;
  background: linear-gradient(180deg, #faf8f3 0%, #f1ede4 100%);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.6), inset 0 -2px 4px rgba(20,24,32,0.04);
}
.cabinet .shelf .label {
  position: absolute;
  top: 10px; left: 14px;
  font-family: "Geist Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--shelf-color, var(--text-2));
  text-transform: uppercase;
  font-weight: 600;
}
.cabinet .shelf .accent-bar {
  position: absolute;
  top: 0; left: 0; bottom: 0;
  width: 3px;
  background: var(--shelf-color, var(--accent));
}
.cabinet .shelf .count {
  position: absolute;
  top: 10px; right: 14px;
  font-family: "Geist Mono", monospace;
  font-size: 10px;
  color: var(--text-3);
  letter-spacing: 0.04em;
}
.cabinet .shelf .slits {
  position: absolute;
  inset: 34px 14px 14px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.cabinet .shelf .slit {
  height: 8px;
  background: var(--shelf-color, rgba(20,24,32,0.1));
  opacity: 0.18;
  border-radius: 2px;
}
.cabinet .shelf .slit:nth-child(2n) { opacity: 0.28; }
.cabinet .shelf .slit:nth-child(3n) { opacity: 0.14; width: 80%; }

/* ============ Chat block (final memory state) ============ */
.chat-block {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: min(640px, 92vw);
  background: var(--paper);
  border-radius: 20px;
  border: 1px solid var(--border-strong);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.8) inset,
    0 20px 50px rgba(20,24,32,0.10),
    0 60px 120px rgba(20,24,32,0.16);
  padding: 32px 32px 24px;
  pointer-events: none;
  will-change: opacity, transform;
  z-index: 9;
}
.chat-block .chat-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "Geist Mono", monospace;
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.chat-block .chat-eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: oklch(0.6 0.18 145);
  box-shadow: 0 0 0 3px oklch(0.6 0.18 145 / 0.18);
}
.chat-block h3 {
  font-size: 28px;
  letter-spacing: -0.025em;
  line-height: 1.1;
  font-weight: 500;
  margin: 0 0 8px;
  color: var(--text-1);
}
.chat-block p {
  font-size: 14.5px;
  color: var(--text-2);
  line-height: 1.55;
  margin: 0 0 22px;
}
.chat-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}
.chat-chip {
  font-size: 12.5px;
  padding: 8px 12px;
  border-radius: 100px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  color: var(--text-1);
  transition: all .2s;
  pointer-events: auto;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.chat-chip:hover {
  background: var(--bg-2);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}
.chat-chip .chip-icon {
  width: 14px; height: 14px;
  display: inline-flex;
  align-items: center; justify-content: center;
  border-radius: 4px;
  background: var(--chip-bg, oklch(0.55 0.18 230 / 0.12));
  color: var(--chip-color, var(--accent));
  font-size: 8px;
}
.chat-input {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 10px 10px 16px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 14px;
  transition: all .2s;
  pointer-events: auto;
}
.chat-input:focus-within {
  border-color: var(--accent);
  background: var(--paper);
  box-shadow: 0 0 0 4px oklch(0.55 0.18 var(--accent-h) / 0.1);
}
.chat-input input {
  flex: 1;
  border: none;
  background: transparent;
  outline: none;
  font: inherit;
  font-size: 14.5px;
  color: var(--text-1);
  padding: 6px 0;
}
.chat-input input::placeholder { color: var(--text-3); }
.chat-input .send {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all .2s;
}
.chat-input .send:hover { filter: brightness(1.08); transform: translateY(-1px); }
.chat-meta {
  margin-top: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: "Geist Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--text-3);
  text-transform: uppercase;
}
.chat-meta .conn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.chat-meta .conn .dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: oklch(0.6 0.18 145);
}

/* ============ Hero overlay (intro) ============ */
.hero-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 6vw;
  max-width: 760px;
  pointer-events: none;
  will-change: opacity, transform;
}
.hero-overlay .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 5px 12px 5px 5px;
  border-radius: 100px;
  background: var(--paper);
  border: 1px solid var(--border);
  font-size: 11.5px;
  color: var(--text-2);
  box-shadow: var(--shadow-sm);
  width: max-content;
  margin-bottom: 26px;
}
.hero-overlay .eyebrow .tag {
  font-family: "Geist Mono", monospace;
  font-size: 9.5px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 100px;
  background: oklch(0.55 0.18 var(--accent-h) / 0.1);
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.hero-overlay .eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: oklch(0.6 0.18 145);
  box-shadow: 0 0 0 3px oklch(0.6 0.18 145 / 0.18);
}
.hero-overlay h1 {
  font-size: clamp(40px, 5.4vw, 76px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  font-weight: 500;
  margin: 0 0 22px;
  pointer-events: none;
  color: var(--text-1);
}
.hero-overlay h1 .accent { color: var(--accent); font-style: normal; }
.hero-overlay .sub {
  font-size: 17.5px;
  color: var(--text-2);
  line-height: 1.55;
  max-width: 520px;
  margin: 0 0 36px;
  letter-spacing: -0.005em;
}
.hero-overlay .ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  pointer-events: auto;
}

/* ============ Captions ============ */
.caption {
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-end;
  padding: 0 6vw 12vh;
  will-change: opacity, transform;
}
.caption-card {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 22px 26px 24px;
  max-width: 520px;
  box-shadow:
    0 1px 0 rgba(255,255,255,0.8) inset,
    0 2px 8px rgba(20,24,32,0.04),
    0 18px 40px rgba(20,24,32,0.10),
    0 40px 80px rgba(20,24,32,0.10);
}
.caption .step {
  font-family: "Geist Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--accent);
  margin-bottom: 14px;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.caption .step .num {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 100px;
  background: oklch(0.55 0.18 var(--accent-h) / 0.1);
  border: 1px solid oklch(0.55 0.18 var(--accent-h) / 0.3);
  margin-right: 0;
}
.caption .headline {
  font-size: clamp(24px, 2.8vw, 34px);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin: 0 0 10px;
  color: var(--text-1);
}
.caption .desc {
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.55;
  margin: 0;
}

/* ============ Step rail (clickable buttons) ============ */
.step-rail {
  position: absolute;
  right: 28px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 25;
  font-family: "Geist Mono", monospace;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.step-rail .item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-3);
  padding: 8px 14px 8px 10px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 100px;
  cursor: pointer;
  transition: all .35s cubic-bezier(.4,0,.2,1);
  font: inherit;
  text-transform: inherit;
  letter-spacing: inherit;
}
.step-rail .item:hover {
  color: var(--text-1);
  background: var(--paper);
  border-color: var(--border);
  box-shadow: var(--shadow-sm);
}
.step-rail .item .bar {
  display: inline-block;
  width: 18px;
  height: 1px;
  background: var(--text-3);
  transition: all .35s;
  flex-shrink: 0;
}
.step-rail .item .num {
  color: var(--text-3);
  font-weight: 500;
}
.step-rail .item.active {
  color: var(--accent);
  background: var(--paper);
  border-color: oklch(0.55 0.18 var(--accent-h) / 0.3);
  box-shadow: 0 4px 14px oklch(0.55 0.18 var(--accent-h) / 0.18);
}
.step-rail .item.active .bar {
  width: 28px;
  background: var(--accent);
}
.step-rail .item.active .num { color: var(--accent); }
.step-rail .item.done { color: var(--text-2); }
.step-rail .item.done .num { color: var(--text-2); }
@media (max-width: 900px) { .step-rail { display: none; } }

/* Scroll hint */
.scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  font-family: "Geist Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.28em;
  color: var(--text-3);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 25;
  pointer-events: none;
}
.scroll-hint .line {
  width: 1px;
  height: 22px;
  background: linear-gradient(180deg, transparent, var(--text-3));
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0% { transform: translateY(-10px); opacity: 0; }
  40%, 60% { opacity: 1; }
  100% { transform: translateY(10px); opacity: 0; }
}

/* ============ Sections (light) ============ */
.section {
  position: relative;
  padding: 140px 0;
  z-index: 2;
}
.section-eyebrow {
  font-family: "Geist Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 18px;
}
.section h2 {
  font-size: clamp(34px, 4vw, 56px);
  letter-spacing: -0.03em;
  line-height: 1.05;
  font-weight: 500;
  margin: 0 0 18px;
  max-width: 820px;
  color: var(--text-1);
}
.section .lead {
  font-size: 17px;
  color: var(--text-2);
  max-width: 540px;
  line-height: 1.55;
  margin: 0;
}

.benefits {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 56px;
}
@media (max-width: 900px) { .benefits { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .benefits { grid-template-columns: 1fr; } }
.benefit {
  padding: 30px 26px;
  border-radius: 16px;
  background: var(--paper);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all .35s;
}
.benefit:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}
.benefit .stat {
  font-size: 38px;
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 14px;
  color: var(--accent);
}
.benefit .stat-unit {
  font-size: 16px;
  color: var(--text-2);
  margin-left: 6px;
  letter-spacing: 0;
}
.benefit h3 {
  font-size: 17px;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
}
.benefit p {
  font-size: 13.5px;
  color: var(--text-2);
  line-height: 1.55;
  margin: 0;
}

.usecases {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 56px;
}
@media (max-width: 900px) { .usecases { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .usecases { grid-template-columns: 1fr; } }
.usecase {
  padding: 28px 24px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--paper);
  box-shadow: var(--shadow-sm);
  min-height: 200px;
  display: flex;
  flex-direction: column;
  transition: all .35s;
}
.usecase:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}
.usecase .tag {
  font-family: "Geist Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.usecase h3 {
  font-size: 19px;
  font-weight: 500;
  letter-spacing: -0.015em;
  margin: 0 0 10px;
}
.usecase p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.55;
  margin: 0;
}
.usecase .meta {
  margin-top: auto;
  padding-top: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: "Geist Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--text-3);
  text-transform: uppercase;
}

/* Final CTA */
.final-cta {
  position: relative;
  padding: 140px 0 160px;
  text-align: center;
  overflow: hidden;
}
.final-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 50%,
    oklch(0.75 0.13 var(--accent-h) / 0.15) 0%,
    transparent 60%);
  pointer-events: none;
}
.final-cta h2 {
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.05;
  margin: 0 auto 28px;
  max-width: 820px;
  color: var(--text-1);
}
.final-cta h2 .accent { color: var(--accent); }
.final-cta .lead {
  font-size: 18px;
  color: var(--text-2);
  max-width: 580px;
  margin: 0 auto 40px;
  line-height: 1.55;
}
.final-cta .ctas {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 36px 0;
  font-family: "Geist Mono", monospace;
  font-size: 11.5px;
  color: var(--text-3);
  letter-spacing: 0.1em;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
}

/* Act navigator (prev / next) */
.act-nav {
  position: absolute;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px;
  border-radius: 100px;
  background: var(--paper);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-md);
  z-index: 40;
}
.act-nav-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-1);
  border: 1px solid var(--border);
  color: var(--text-1);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all .2s;
  flex-shrink: 0;
}
.act-nav-btn:hover:not(:disabled) {
  background: var(--bg-2);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}
.act-nav-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}
.act-nav-btn.primary {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 2px 6px oklch(0.55 0.18 var(--accent-h) / 0.35);
}
.act-nav-btn.primary:hover:not(:disabled) {
  filter: brightness(1.08);
  transform: translateY(-1px);
}
.act-nav-current {
  padding: 0 14px;
  min-width: 130px;
  text-align: center;
  user-select: none;
}
.act-nav-current .act-num {
  font-size: 9.5px;
  letter-spacing: 0.2em;
  color: var(--text-3);
  text-transform: uppercase;
  margin-bottom: 2px;
}
.act-nav-current .act-label {
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text-1);
}

/* Reveal on view */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .9s cubic-bezier(.2,.7,.2,1), transform .9s cubic-bezier(.2,.7,.2,1);
}
.reveal.in { opacity: 1; transform: translateY(0); }