/* ============================================================
   Oprova landing — styles
   ============================================================ */

/* ---------- tokens ---------- */
:root {
  --bg:        #0a0b0d;
  --bg-2:      #101216;
  --bg-3:      #171a20;
  --line:      #23262d;
  --line-2:    #343942;
  --fg:        #f4f1ea;
  --fg-dim:    #9ba0a9;
  --fg-mute:   #5f6570;
  --accent:    #6aa8ff;
  --accent-2:  oklch(0.86 0.16 95);
  --warn:      oklch(0.78 0.18 50);
  --ok:        oklch(0.82 0.14 150);
  --cream:     #f4f1ea;

  --display: 'Space Grotesk', 'Inter', sans-serif;
  --serif:   'Fraunces', serif;
  --body:    'Inter', system-ui, sans-serif;
  --mono:    'JetBrains Mono', monospace;

  --ease: cubic-bezier(.22,.61,.36,1);
}

[data-theme="light"] {
  --bg:        #f4f1ea;
  --bg-2:      #ece7dc;
  --bg-3:      #e0dbcd;
  --line:      #d2cdbe;
  --line-2:    #b8b3a5;
  --fg:        #0a0b0d;
  --fg-dim:    #4a4e57;
  --fg-mute:   #7a7e87;
}

*,*::before,*::after { box-sizing: border-box; }
html,body {
  margin:0; padding:0;
  background: var(--bg); color: var(--fg);
  font-family: var(--body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01","cv11";
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
::selection { background: var(--accent); color: #000; }

/* grain overlay */
body::before {
  content: "";
  position: fixed; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 3px 3px;
  pointer-events: none; z-index: 1;
  mix-blend-mode: overlay;
  opacity: .5;
}

/* ---------- reveal ---------- */
.op-reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.op-reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .op-reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- nav ---------- */
.op-nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex; align-items: center; gap: 24px;
  padding: 18px 32px;
  backdrop-filter: blur(14px);
  background: color-mix(in oklab, var(--bg) 70%, transparent);
  border-bottom: 1px solid color-mix(in oklab, var(--line) 70%, transparent);
}
.op-nav-logo { display: flex; align-items: center; color: var(--fg); transform: translateZ(0); }
.op-nav-logo svg { shape-rendering: geometricPrecision; }
.op-nav-center {
  display: flex; gap: 28px; margin-left: 36px;
  font-family: var(--mono); font-size: 11px;
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--fg-dim);
}
.op-nav-center a:hover { color: var(--fg); }
.op-nav-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }

.op-toggle { display: flex; border: 1px solid var(--line); border-radius: 999px; padding: 3px; background: var(--bg-2); }
.op-toggle-btn {
  padding: 6px 12px;
  font-family: var(--mono); font-size: 10px;
  letter-spacing: .2em; text-transform: uppercase;
  color: var(--fg-mute);
  border-radius: 999px;
  transition: all .25s var(--ease);
}
.op-toggle-btn.is-on { background: var(--fg); color: var(--bg); }

.op-cta-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 16px;
  background: var(--accent); color: #000;
  font-family: var(--mono); font-size: 11px;
  letter-spacing: .22em; text-transform: uppercase; font-weight: 600;
  border-radius: 999px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.op-cta-pill:hover { transform: translateY(-1px); box-shadow: 0 6px 20px color-mix(in oklab, var(--accent) 30%, transparent); }

@media (max-width: 900px) {
  .op-nav-center { display: none; }
  .op-nav { padding: 14px 18px; }
}

/* ---------- marquee ---------- */
.op-marquee { overflow: hidden; position: relative; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.op-marquee::before, .op-marquee::after {
  content:""; position: absolute; top:0; bottom:0; width: 80px; z-index: 2;
  pointer-events: none;
}
.op-marquee::before { left: 0; background: linear-gradient(to right, var(--bg), transparent); }
.op-marquee::after  { right: 0; background: linear-gradient(to left, var(--bg), transparent); }
.op-marquee-track { display: flex; white-space: nowrap; animation: op-marq linear infinite; }
.op-marquee-item {
  padding: 14px 42px; font-family: var(--mono); font-size: 11px;
  letter-spacing: .28em; text-transform: uppercase; color: var(--fg-dim);
  position: relative;
}
.op-marquee-item::after {
  content: "◉"; position: absolute; right: -10px; top: 50%; transform: translateY(-50%);
  color: var(--accent); font-size: 8px;
}
@keyframes op-marq { to { transform: translateX(-33.3333%); } }

/* ---------- footer ---------- */
.op-footer { padding: 48px 40px 36px; border-top: 1px solid var(--line); margin-top: 80px; }
.op-footer-row {
  display: flex; align-items: center; gap: 32px; flex-wrap: wrap;
  font-family: var(--mono); font-size: 10px;
  letter-spacing: .24em; text-transform: uppercase; color: var(--fg-mute);
}

/* ============================================================
   VARIANT A — EDITORIAL
   ============================================================ */
.va-root { padding-top: 72px; }

.va-hero { padding: 80px 40px 40px; position: relative; }
.va-hero-grid {
  display: grid; grid-template-columns: 160px 1fr 260px;
  gap: 40px; align-items: start;
}
.va-hero-left { padding-top: 12px; }
.va-eyebrow {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: .26em; text-transform: uppercase;
  color: var(--fg-dim);
}
.va-chap { font-family: var(--mono); font-size: 11px; letter-spacing: .26em; text-transform: uppercase; color: var(--fg-dim); }
.va-chap-center { text-align: center; color: var(--fg-mute); }

.va-headline {
  font-family: var(--display); font-weight: 800;
  font-size: clamp(56px, 9vw, 148px);
  line-height: .92; letter-spacing: -0.04em;
  margin: 0 0 48px; text-wrap: balance;
}
.va-line { display: block; }
.va-line-2 { color: var(--fg); font-style: italic; font-family: var(--serif); font-weight: 400; letter-spacing: -0.02em; }

.va-hero-foot { display: grid; grid-template-columns: 1.2fr 1fr; gap: 32px; align-items: end; margin-top: 8px; }
.va-lede { font-size: 18px; line-height: 1.55; color: var(--fg-dim); max-width: 520px; margin: 0; }
.va-cta-row { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.va-cta-primary {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px;
  background: var(--fg); color: var(--bg);
  font-family: var(--mono); font-size: 12px;
  letter-spacing: .2em; text-transform: uppercase; font-weight: 600;
  transition: transform .3s var(--ease);
}
.va-cta-primary:hover { transform: translateY(-2px); }
.va-cta-ghost {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--fg-dim); padding: 12px 4px;
  border-bottom: 1px solid var(--line-2);
}
.va-cta-ghost:hover { color: var(--fg); border-color: var(--fg); }

.va-meta-block {
  border: 1px solid var(--line);
  padding: 8px 14px;
}
.va-meta-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 0;
  font-family: var(--mono); font-size: 10px;
  letter-spacing: .2em; text-transform: uppercase;
  border-bottom: 1px dashed var(--line);
  color: var(--fg-mute);
}
.va-meta-row:last-child { border-bottom: 0; }
.va-meta-row b { color: var(--fg); font-weight: 500; }

.va-hero-rule { height: 1px; background: var(--line); margin: 56px 0 0; }
.va-ticker { padding-top: 20px; padding-bottom: 20px; }

.va-two {
  display: grid; grid-template-columns: 160px 1fr; gap: 64px;
  padding: 120px 40px; border-top: 1px solid var(--line);
  max-width: 1400px; margin: 0 auto;
}
.va-col-label { position: sticky; top: 100px; align-self: start; }

.va-h2 {
  font-family: var(--display); font-weight: 800;
  font-size: clamp(36px, 5.2vw, 82px);
  line-height: .96; letter-spacing: -0.03em;
  margin: 0 0 48px; white-space: pre-line; text-wrap: balance;
}
.va-h2-big { font-size: clamp(48px, 7vw, 120px); }

.va-problem-list { display: flex; flex-direction: column; gap: 0; }
.va-prob-row {
  display: grid; grid-template-columns: 40px 1fr; gap: 24px;
  padding: 26px 0; border-bottom: 1px solid var(--line);
}
.va-prob-row span { font-family: var(--mono); font-size: 12px; color: var(--fg-mute); letter-spacing: .2em; padding-top: 4px; }
.va-prob-row p { margin: 0; font-size: clamp(22px, 2.6vw, 34px); font-weight: 500; letter-spacing: -0.01em; color: var(--fg); line-height: 1.25; }
.va-pullquote {
  margin-top: 56px;
  font-family: var(--serif); font-style: italic; font-weight: 400;
  font-size: clamp(22px, 2.2vw, 30px); line-height: 1.4;
  color: var(--fg-dim); max-width: 760px;
}

.va-who-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border: 1px solid var(--line); }
.va-who-cell { padding: 32px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--bg); transition: background .3s var(--ease); }
.va-who-cell:hover { background: var(--bg-2); }
.va-who-cell:nth-child(2n) { border-right: 0; }
.va-who-cell:nth-last-child(-n+2) { border-bottom: 0; }
.va-who-n { font-family: var(--mono); font-size: 11px; letter-spacing: .24em; color: var(--accent); margin-bottom: 16px; }
.va-who-k { font-size: 22px; font-weight: 600; margin-bottom: 8px; letter-spacing: -0.01em; }
.va-who-v { color: var(--fg-dim); font-size: 15px; line-height: 1.5; margin: 0; }

.va-how-list { display: flex; flex-direction: column; }
.va-how-row {
  display: grid; grid-template-columns: 80px 200px 1fr; gap: 40px; align-items: start;
  padding: 36px 0; border-top: 1px solid var(--line);
  transition: background .3s var(--ease);
}
.va-how-row:hover { background: color-mix(in oklab, var(--fg) 2%, transparent); }
.va-how-row:first-child { border-top: 0; }
.va-how-n { font-family: var(--mono); font-size: 14px; color: var(--accent); letter-spacing: .1em; padding-top: 6px; }
.va-how-t { font-family: var(--display); font-weight: 700; font-size: clamp(24px, 2.4vw, 36px); letter-spacing: -0.02em; line-height: 1.1; }
.va-how-d { margin: 0; color: var(--fg-dim); font-size: 16px; line-height: 1.6; max-width: 620px; }

.va-m-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.va-m-cell { padding: 40px 36px; background: var(--bg); }
.va-m-big {
  font-family: var(--display); font-weight: 800;
  font-size: clamp(64px, 9vw, 140px); line-height: 1; letter-spacing: -0.05em;
  display: flex; align-items: baseline; gap: 12px;
  margin-bottom: 20px;
}
.va-m-unit { font-family: var(--mono); font-size: 14px; letter-spacing: .15em; color: var(--fg-dim); font-weight: 400; }
.va-m-label { font-size: 17px; font-weight: 500; letter-spacing: -0.005em; margin-bottom: 8px; }
.va-m-foot { font-family: var(--mono); font-size: 10px; letter-spacing: .2em; text-transform: uppercase; color: var(--fg-mute); }

.va-philo { padding: 160px 40px; text-align: center; border-top: 1px solid var(--line); }
.va-philo-stack { margin-top: 40px; display: flex; flex-direction: column; gap: 0; max-width: 820px; margin-left: auto; margin-right: auto; }
.va-philo-line {
  display: flex; align-items: baseline; justify-content: flex-start; gap: 24px;
  padding: 22px 0; border-bottom: 1px dashed var(--line);
  font-family: var(--display); font-size: clamp(28px, 3.2vw, 44px); font-weight: 500;
  letter-spacing: -0.025em; line-height: 1.1;
  color: var(--fg-mute);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .6s var(--ease), transform .6s var(--ease), color .5s var(--ease);
}
.va-philo-line.is-shown { opacity: 1; transform: translateY(0); }
.va-philo-line:last-child { border-bottom: 0; }
.va-philo-line.is-last { color: var(--fg); }
.va-philo-line.is-last .va-philo-text { font-style: italic; font-family: var(--serif); font-weight: 400; }
.va-philo-line.is-last.is-shown { color: var(--fg); }
.va-philo-line.is-struck { color: var(--fg-mute); }
.va-philo-num { font-family: var(--mono); font-size: 11px; color: var(--fg-mute); letter-spacing: .26em; font-weight: 400; min-width: 28px; text-align: left; }

.va-philo-text { position: relative; display: inline-block; }
.va-philo-strike {
  position: absolute; left: -2%; right: 102%; top: 52%;
  height: 2px; background: var(--accent);
  transition: right 0.7s cubic-bezier(.7,.1,.2,1);
  pointer-events: none;
}
.va-philo-line.is-struck .va-philo-strike { right: -2%; }

.va-cta { }
.va-cta-block { margin-top: 40px; display: flex; flex-direction: column; gap: 16px; align-items: flex-start; }
.va-cta-big { padding: 22px 32px; font-size: 14px; }
.va-cta-mail { font-family: var(--mono); font-size: 11px; letter-spacing: .2em; color: var(--fg-mute); margin: 8px 0 0; }

/* --- A: Premium CTA close --- */
.va-cta-premium .va-two { padding: 140px 40px 180px; }

.va-cta-hl {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(44px, 5.6vw, 88px); line-height: 1.02;
  letter-spacing: -0.035em; margin: 0 0 40px; text-wrap: balance;
  color: var(--fg);
  display: flex; flex-direction: column;
}
.va-cta-hl-ln { display: block; }
.va-cta-hl-dim { color: var(--fg-dim); font-weight: 400; font-style: italic; font-family: var(--serif); letter-spacing: -0.02em; }

.va-cta-sub {
  font-family: var(--serif); font-size: clamp(17px, 1.3vw, 21px); line-height: 1.6;
  color: var(--fg-dim); max-width: 600px;
  margin: 0 0 56px; font-weight: 400;
}

.va-cta-block-premium { margin-top: 0; gap: 8px; }
.va-cta-mail-line {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 28px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  width: 100%;
  transition: padding-left .4s var(--ease);
}
.va-cta-mail-line:hover { padding-left: 12px; }
.va-cta-mail-line:hover .va-cta-mail-addr { color: var(--accent); }
.va-cta-mail-line:hover .va-cta-mail-arrow { transform: translateX(8px); color: var(--accent); }
.va-cta-mail-label {
  font-family: var(--mono); font-size: 11px; letter-spacing: .24em;
  text-transform: uppercase; color: var(--fg-mute);
}
.va-cta-mail-addr {
  font-family: var(--display); font-size: clamp(26px, 3.2vw, 46px); font-weight: 500;
  letter-spacing: -0.02em; color: var(--fg);
  transition: color .3s var(--ease);
}
.va-cta-mail-arrow {
  color: var(--fg-mute); transition: transform .4s var(--ease), color .3s var(--ease);
}
.va-cta-mail-foot {
  font-family: var(--mono); font-size: 11px; letter-spacing: .18em;
  color: var(--fg-mute); margin: 16px 0 0;
}

/* --- A: Agent thread section --- */
.va-thread { border-top: 1px solid var(--line); }
.va-thread .va-two { padding: 120px 40px; border-top: 0; }
.va-thread-meta {
  margin-top: 36px;
  display: flex; justify-content: space-between; align-items: center; gap: 24px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  font-family: var(--mono); font-size: 11px; letter-spacing: .18em;
  color: var(--fg-dim); text-transform: uppercase;
  flex-wrap: wrap;
}
.va-thread-scenario { flex: 1 1 auto; }
.va-thread-play {
  font-family: var(--mono); font-size: 10px; letter-spacing: .22em;
  color: var(--fg-dim); display: inline-flex; align-items: center; gap: 8px;
  padding: 2px 0; border-bottom: 1px solid transparent;
}
.va-thread-play:hover { color: var(--fg); border-color: var(--fg); }
.va-pulse { width: 6px; height: 6px; border-radius: 50%; background: var(--fg-mute); display: inline-block; }
.va-pulse.is-on { background: var(--ok); box-shadow: 0 0 8px var(--ok); animation: va-pulse 1.4s infinite; }
@keyframes va-pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

.va-parties {
  margin-top: 24px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
  border: 1px solid var(--line); border-bottom: 0;
}
.va-party {
  display: flex; align-items: center; gap: 14px;
  padding: 18px 20px; border-right: 1px solid var(--line);
}
.va-party:last-child { border-right: 0; }
.va-party-dot {
  width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0;
  background: var(--fg-mute);
}
.va-party-label { font-family: var(--mono); font-size: 11px; letter-spacing: .22em; text-transform: uppercase; color: var(--fg); }
.va-party-sub { font-size: 12px; color: var(--fg-mute); margin-top: 3px; letter-spacing: 0; }
.va-party.va-party-you .va-party-dot { background: var(--accent); box-shadow: 0 0 8px color-mix(in oklab, var(--accent) 60%, transparent); }
.va-party.va-party-vendor .va-party-dot { background: var(--accent-2); box-shadow: 0 0 8px color-mix(in oklab, var(--accent-2) 60%, transparent); }
.va-party.va-party-partner .va-party-dot { background: var(--ok); box-shadow: 0 0 8px color-mix(in oklab, var(--ok) 60%, transparent); }

.va-thread-log {
  border: 1px solid var(--line);
  font-family: var(--mono); font-size: 13px; line-height: 1.6;
  background: color-mix(in oklab, var(--bg-2) 60%, var(--bg));
  min-height: 360px;
}
.va-thread-row {
  display: grid;
  grid-template-columns: 60px 18px 170px 1fr;
  gap: 16px; align-items: baseline;
  padding: 12px 20px;
  border-bottom: 1px solid color-mix(in oklab, var(--line) 60%, transparent);
  transition: background .35s var(--ease);
}
.va-thread-row:last-child { border-bottom: 0; }
.va-thread-t { color: var(--fg-mute); font-size: 11px; letter-spacing: .1em; }
.va-thread-party-dot { display: inline-grid; place-items: center; }
.va-thread-party-dot i { display: block; width: 8px; height: 8px; border-radius: 50%; background: var(--fg-mute); }
.va-thread-party-dot.va-party-you i { background: var(--accent); box-shadow: 0 0 6px color-mix(in oklab, var(--accent) 70%, transparent); }
.va-thread-party-dot.va-party-vendor i { background: var(--accent-2); box-shadow: 0 0 6px color-mix(in oklab, var(--accent-2) 70%, transparent); }
.va-thread-party-dot.va-party-partner i { background: var(--ok); box-shadow: 0 0 6px color-mix(in oklab, var(--ok) 70%, transparent); }
.va-thread-who { color: var(--fg); letter-spacing: .04em; font-weight: 500; }
.va-thread-you .va-thread-who { color: var(--accent); }
.va-thread-vendor .va-thread-who { color: var(--accent-2); }
.va-thread-partner .va-thread-who { color: var(--ok); }
.va-thread-msg { color: var(--fg); font-family: var(--body); font-size: 14px; line-height: 1.5; }
.va-thread-dim { color: var(--fg-mute); font-style: italic; }
.va-thread-row.is-new { background: color-mix(in oklab, var(--accent) 8%, transparent); }
.va-thread-row.is-new .va-thread-msg { animation: va-thread-in .5s var(--ease); }
@keyframes va-thread-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

@media (max-width: 900px) {
  .va-thread .va-two { padding: 80px 20px; }
  .va-parties { grid-template-columns: 1fr; }
  .va-party { border-right: 0; border-bottom: 1px solid var(--line); }
  .va-party:last-child { border-bottom: 0; }
  .va-thread-row {
    grid-template-columns: 50px 14px 1fr;
    grid-template-areas: "t dot who" "t dot msg";
    row-gap: 4px;
  }
  .va-thread-t { grid-area: t; }
  .va-thread-party-dot { grid-area: dot; }
  .va-thread-who { grid-area: who; }
  .va-thread-msg { grid-area: msg; }
}

@media (max-width: 900px) {
  .va-hero { padding: 60px 20px 20px; }
  .va-hero-grid { grid-template-columns: 1fr; gap: 24px; }
  .va-hero-right { display: none; }
  .va-hero-foot { grid-template-columns: 1fr; }
  .va-two { grid-template-columns: 1fr; padding: 64px 20px; gap: 32px; }
  .va-col-label { position: static; }
  .va-who-grid { grid-template-columns: 1fr; }
  .va-who-cell { border-right: 0; }
  .va-m-grid { grid-template-columns: 1fr; }
  .va-how-row { grid-template-columns: 1fr; gap: 12px; padding: 28px 0; }
  .va-philo { padding: 80px 20px; }
}