/* ==========================================================================
   RunMyData — Venture Studio
   Dark editorial system. One accent: RunMyData Red #E30613 (Pantone 485 C).
   ========================================================================== */

:root {
  --bg: #0a0a0b;
  --bg-raise: #0f0f11;
  --ink: #f2f1ed;
  --muted: #a3a29c;
  --dim: #6e6d68;
  --line: rgba(242, 241, 237, 0.10);
  --line-soft: rgba(242, 241, 237, 0.06);
  --red: #e30613;
  --serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --sans: "Instrument Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", "Consolas", monospace;
  --pad: clamp(1.25rem, 4vw, 3rem);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--red); color: #fff; }

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

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

.container {
  width: min(72rem, 100% - 2 * var(--pad));
  margin-inline: auto;
}

.red { color: var(--red); }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink);
  color: var(--bg);
  padding: 0.5rem 1rem;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* ---------- type utilities ---------- */

.eyebrow,
.label {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dim);
}

.label { margin-bottom: 2.5rem; }

.display {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.4rem, 5.5vw, 4.8rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
}

.body-copy {
  color: var(--muted);
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  max-width: 38em;
}

/* ---------- reveal on scroll ---------- */

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition:
    opacity 0.9s cubic-bezier(0.2, 0.6, 0.2, 1) var(--d, 0s),
    transform 0.9s cubic-bezier(0.2, 0.6, 0.2, 1) var(--d, 0s);
}
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .loop__dot { animation: none !important; }
}

/* ---------- nav ---------- */

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem var(--pad);
  transition: background 0.4s ease, border-color 0.4s ease;
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(10, 10, 11, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--line-soft);
}

.nav__wordmark {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.nav__links {
  display: flex;
  gap: clamp(1.2rem, 3vw, 2.6rem);
}

.nav__links a {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color 0.25s ease;
}

.nav__links a:hover,
.nav__links a:focus-visible { color: var(--ink); }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.95rem 1.7rem;
  border: 1px solid var(--ink);
  transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.btn--solid {
  background: var(--ink);
  color: var(--bg);
}
.btn--solid:hover,
.btn--solid:focus-visible {
  background: var(--red);
  border-color: var(--red);
  color: #fff;
}

.btn--ghost {
  border-color: var(--line);
  color: var(--ink);
}
.btn--ghost:hover,
.btn--ghost:focus-visible { border-color: var(--ink); }

.btn__arrow { font-family: var(--sans); }

/* ---------- hero ---------- */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
}

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero__scrim {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 100% 80% at 32% 42%, transparent 55%, var(--bg) 100%),
    linear-gradient(to bottom, transparent 62%, var(--bg) 100%);
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 2;
  padding-top: 4rem;
}

.hero__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(4rem, 12.5vw, 11rem);
  line-height: 0.95;
  letter-spacing: -0.015em;
  margin: 1.6rem 0 2.2rem;
  display: flex;
  flex-direction: column;
}

.hero__title-italic {
  font-style: italic;
  color: var(--muted);
}

.hero__sub {
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  max-width: 36em;
  margin-bottom: 2.6rem;
}

.hero__cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero__foot {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  padding: 1.2rem var(--pad);
  border-top: 1px solid var(--line-soft);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dim);
}

.hero__foot-scroll { margin-left: auto; }

/* ---------- sections ---------- */

.section {
  padding: clamp(6rem, 14vh, 10rem) 0;
  border-top: 1px solid var(--line-soft);
}

/* ---------- manifesto ---------- */

.manifesto__lines {
  font-family: var(--serif);
  line-height: 1.18;
}

.manifesto__tool {
  font-size: clamp(1.7rem, 3.6vw, 3.1rem);
  color: var(--dim);
}

.manifesto__mission {
  font-size: clamp(2.6rem, 6.5vw, 5.6rem);
  margin-top: 1.4rem;
}

.manifesto__copy { margin-top: 3rem; }

/* ---------- philosophy ---------- */

.philosophy__intro { margin-top: 1.6rem; }

.doctrine {
  list-style: none;
  margin-top: 4.5rem;
}

.doctrine__row {
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: 1.5rem;
  padding: 2.8rem 0;
  border-top: 1px solid var(--line);
}

.doctrine__row:last-child { border-bottom: 1px solid var(--line); }

.doctrine__num {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--dim);
  padding-top: 0.9rem;
}

.doctrine__verb {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.9rem, 3.4vw, 2.9rem);
  line-height: 1.1;
}

.doctrine__lead {
  font-size: 1.05rem;
  color: var(--ink);
  margin-top: 0.7rem;
}

.doctrine__text {
  color: var(--muted);
  max-width: 44em;
  margin-top: 0.6rem;
}

/* ---------- doctrine loop ---------- */

.loop {
  margin-top: 5rem;
  max-width: 30rem;
}

.loop__track {
  position: relative;
  height: 1px;
  background: var(--line);
}

.loop__dot {
  position: absolute;
  top: -2.5px;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--red);
  animation: loop-run 6s cubic-bezier(0.6, 0, 0.4, 1) infinite;
}

@keyframes loop-run {
  0%   { left: 0;    opacity: 0; }
  8%   { opacity: 1; }
  46%  { left: 50%;  }
  88%  { left: 100%; opacity: 1; }
  100% { left: 100%; opacity: 0; }
}

.loop__labels {
  display: flex;
  justify-content: space-between;
  margin-top: 0.9rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--dim);
}

.loop__caption {
  font-family: var(--serif);
  font-style: italic;
  color: var(--muted);
  margin-top: 1.8rem;
}

/* ---------- ventures ---------- */

.ventures__intro { margin-bottom: 4.5rem; }

.ventures__list {
  border-top: 1px solid var(--line);
}

.venture {
  display: block;
  border-bottom: 1px solid var(--line);
  position: relative;
  transition: background 0.35s ease;
}

.venture::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--red);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.35s ease;
}

.venture:hover,
.venture:focus-visible { background: var(--bg-raise); }

.venture:hover::before,
.venture:focus-visible::before { transform: scaleY(1); }

.venture__inner {
  display: grid;
  grid-template-columns: 6rem 1fr auto;
  align-items: start;
  gap: 1.5rem;
  padding-top: 3.2rem;
  padding-bottom: 3.2rem;
}

.venture__num {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--dim);
  padding-top: 1.3rem;
}

.venture__name {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  line-height: 1.05;
}

.venture__tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 0.9rem;
}

.venture__desc {
  color: var(--muted);
  max-width: 40em;
  margin-top: 1rem;
}

.venture__cta {
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
  white-space: nowrap;
  padding-top: 1.3rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.venture__arrow {
  display: inline-block;
  transition: transform 0.3s ease;
  font-family: var(--sans);
}

.venture:hover .venture__arrow { transform: translate(3px, -2px); }

/* ---------- closing ---------- */

.closing { text-align: left; }

.closing__line {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 4vw, 3.4rem);
  line-height: 1.2;
  color: var(--muted);
}

.closing__built {
  font-family: var(--serif);
  font-size: clamp(3.4rem, 9vw, 8rem);
  line-height: 1.05;
  margin-top: 0.6rem;
}

.closing__built em { font-style: italic; }

.closing__copy { margin-top: 2.2rem; }

/* ---------- contact ---------- */

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: start;
}

.contact__title { margin-bottom: 1.6rem; }

.contact__form { display: grid; gap: 1.6rem; }

.hp { display: none; }

.field { display: grid; gap: 0.5rem; }

.field label {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--dim);
}

.field input,
.field textarea {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  padding: 0.6rem 0;
  border-radius: 0;
  transition: border-color 0.3s ease;
}

.field textarea { resize: vertical; }

.field input:focus,
.field textarea:focus {
  outline: none;
  border-bottom-color: var(--red);
}

.contact__submit {
  justify-self: start;
  cursor: pointer;
  font-size: 0.78rem;
}

.contact__submit:disabled {
  opacity: 0.5;
  cursor: default;
}

.form-note {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  min-height: 1.2em;
}

.form-note.is-ok { color: var(--muted); }
.form-note.is-error { color: var(--red); }

/* ---------- footer ---------- */

.footer {
  border-top: 1px solid var(--line-soft);
  padding: clamp(4rem, 10vh, 6.5rem) 0 clamp(2.5rem, 6vh, 4rem);
}

.footer__stack {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.footer__logo {
  width: clamp(104px, 12vw, 140px);
  height: auto;
}

.footer__links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.1rem;
  flex-wrap: wrap;
  margin-top: 2.6rem;
}

.footer__links a {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color 0.25s ease;
}

.footer__links a:hover { color: var(--ink); }

.footer__sep { color: var(--dim); }

.footer__legal {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--dim);
  margin-top: 1.6rem;
}

/* ---------- responsive ---------- */

@media (max-width: 860px) {
  .contact__grid { grid-template-columns: 1fr; }

  .venture__inner {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }
  .venture__num,
  .venture__cta { padding-top: 0; }
  .venture__cta { margin-top: 1.4rem; }

  .doctrine__row { grid-template-columns: 1fr; gap: 0.4rem; }
  .doctrine__num { padding-top: 0; }

  .br-desktop { display: none; }

  .hero__foot { gap: 1.1rem; }
}

@media (max-width: 480px) {
  .hero__foot-item:nth-child(2),
  .hero__foot-item:nth-child(3) { display: none; }
  .nav__links { gap: 1rem; }
  .nav__links a { letter-spacing: 0.1em; }
}