/* TriHolm Labs — site styles */

:root {
  --bg: #FAFAF9;
  --bg-alt: #F1F1EF;
  --ink: #131316;
  --ink-soft: #3E3E42;
  --ink-muted: #67676A;
  --ink-faint: #8A8A8D;
  --border: #E4E4E1;
  --border-alt: #DEDEDA;
  --border-input: #D2D2CE;
  --border-dashed: #D2D2CE;
  --accent: #3557B0;
  --accent-deep: #2B478F;
  --accent-soft: rgba(53, 87, 176, 0.1);
  --accent-line: rgba(53, 87, 176, 0.4);
  --accent-light: #6E8FE0;
  --error: #C43D3D;
  --serif: "Instrument Serif", Georgia, serif;
  --mono: "IBM Plex Mono", monospace;
}

@supports (color: oklch(0.5 0.1 250)) {
  :root {
    --accent: oklch(0.48 0.13 250);
    --accent-deep: oklch(0.40 0.12 250);
    --accent-soft: oklch(0.48 0.13 250 / 0.1);
    --accent-line: oklch(0.48 0.13 250 / 0.4);
    --accent-light: oklch(0.66 0.11 265);
    --error: oklch(0.52 0.19 22);
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  font-family: "Helvetica Neue", Helvetica, sans-serif;
}

a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--accent); }

::selection { background: var(--accent); color: var(--bg); }

input, textarea, select, button { font-family: inherit; }
input:focus, textarea:focus, select:focus { outline: none; }

@keyframes thRise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding-left: 40px;
  padding-right: 40px;
}

/* ---------- Shared pieces ---------- */

.section-label {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.section-label-dark { color: var(--ink-faint); }

.section-grid {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: 56px;
}

.rule-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 32px;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--border);
}

.rule-row-alt { border-bottom-color: var(--border-alt); }

.rule-row-aside {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--ink-muted);
}

.underline-link {
  border-bottom: 1px solid var(--accent-line);
  padding-bottom: 1px;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 250, 249, 0.86);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
}

.brand-mark {
  width: 26px;
  height: 26px;
  display: block;
  flex-shrink: 0;
}

.brand-mark-sm { width: 18px; height: 18px; }

.brand-name {
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}

.site-nav > a {
  font-size: 13.5px;
  color: var(--ink-muted);
  letter-spacing: 0.01em;
}

.site-nav > a:hover { color: var(--accent); }

.site-nav > a.nav-cta {
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 0 18px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--bg);
}

.site-nav > a.nav-cta:hover { background: var(--accent); color: var(--bg); }

/* ---------- Hero ---------- */

.hero .container { padding-top: 132px; padding-bottom: 108px; }

.eyebrow-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 34px;
}

.eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent);
  display: block;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.hero h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(46px, 6.6vw, 92px);
  line-height: 1.0;
  letter-spacing: -0.025em;
  max-width: 15ch;
  text-wrap: pretty;
}

.hero h1 em {
  font-style: italic;
  color: var(--accent);
}

.hero-lede {
  margin: 52px 0 0;
  font-size: 19px;
  line-height: 1.62;
  color: var(--ink-soft);
  max-width: 52ch;
  text-wrap: pretty;
}

/* ---------- Lab ---------- */

.lab {
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
}

.lab .container { padding-top: 96px; padding-bottom: 100px; }

.lab-heading {
  margin: 0 0 44px;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(30px, 3.4vw, 46px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  max-width: 26ch;
  text-wrap: pretty;
}

.principles {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--border-alt);
  border: 1px solid var(--border-alt);
}

.principle {
  background: var(--bg);
  padding: 30px 28px 34px;
}

.principle-num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 18px;
}

.principle h3 {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.principle p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink-muted);
}

/* ---------- Kioku ---------- */

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

.kioku .container { padding-top: 96px; padding-bottom: 104px; }

.kioku-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
  gap: 60px;
  align-items: center;
  padding-top: 54px;
}

.stage-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  height: 26px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  margin-bottom: 26px;
}

.stage-badge-dot {
  width: 5px;
  height: 5px;
  border-radius: 999px;
  background: var(--accent);
  display: block;
}

.stage-badge-text {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.kioku-title {
  margin: 0 0 18px;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(40px, 5vw, 68px);
  line-height: 1;
  letter-spacing: -0.025em;
}

.kioku-lede {
  margin: 0 0 26px;
  font-size: 18.5px;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 46ch;
  text-wrap: pretty;
}

.kioku-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 32px;
  margin: 0 0 34px;
  padding: 22px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.kioku-facts dt {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 6px;
}

.kioku-facts dd {
  margin: 0;
  font-size: 15px;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 46px;
  padding: 0 24px;
  border-radius: 999px;
  border: 1px solid var(--ink);
  font-size: 14.5px;
  transition: background 0.15s ease, color 0.15s ease;
}

.btn-outline:hover {
  background: var(--ink);
  color: var(--bg);
}

.btn-arrow {
  font-family: var(--mono);
  font-size: 13px;
}

.kioku-shots {
  background: var(--bg-alt);
  border: 1px solid var(--border-alt);
  padding: 40px 32px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  align-items: end;
}

.shot {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--border-alt);
}

.shot-side {
  border-radius: 14px;
  box-shadow: 0 8px 24px rgba(19, 19, 22, 0.09);
  transform: translateY(18px);
}

.shot-center {
  border-radius: 16px;
  box-shadow: 0 14px 36px rgba(19, 19, 22, 0.13);
}

/* ---------- Ventures ---------- */

.ventures {
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
}

.ventures .container { padding-top: 96px; padding-bottom: 100px; }

.venture-list {
  display: flex;
  flex-direction: column;
}

.venture {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.15fr) 190px;
  gap: 40px;
  padding: 34px 0;
  border-bottom: 1px solid var(--border-alt);
  align-items: start;
}

.venture-name {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 30px;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.venture-cat {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.venture-desc {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-soft);
}

.venture-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.venture-stage {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.venture-stage-active { color: var(--accent-deep); }

.venture-meta .underline-link { font-size: 14.5px; }

.venture-muted {
  font-size: 14.5px;
  color: var(--ink-faint);
}

.pipeline-note {
  margin-top: 54px;
  padding: 28px 30px;
  border: 1px dashed var(--border-dashed);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
}

.pipeline-note p {
  margin: 0;
  font-size: 15.5px;
  color: var(--ink-muted);
  max-width: 62ch;
}

.pipeline-cta {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  white-space: nowrap;
}

/* ---------- Practice ---------- */

.practice {
  border-top: 1px solid var(--border);
  background: var(--ink);
  color: var(--bg);
}

.practice .container { padding-top: 100px; padding-bottom: 100px; }

.practice a { color: var(--bg); }

.practice-heading {
  margin: 0 0 56px;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(30px, 3.4vw, 46px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  max-width: 24ch;
  text-wrap: pretty;
}

.phase-list {
  display: flex;
  flex-direction: column;
}

.phase {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) minmax(0, 1.3fr);
  gap: 32px;
  padding: 26px 0;
  border-top: 1px solid rgba(250, 250, 249, 0.16);
  align-items: baseline;
}

.phase-last { border-bottom: 1px solid rgba(250, 250, 249, 0.16); }

.phase-num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent-light);
}

.phase h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 400;
  font-family: var(--serif);
  letter-spacing: -0.01em;
}

.phase p {
  margin: 0;
  font-size: 15px;
  line-height: 1.62;
  color: rgba(250, 250, 249, 0.62);
}

/* ---------- Contact ---------- */

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

.contact .container { padding-top: 100px; padding-bottom: 110px; }

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1fr);
  gap: 72px;
  align-items: start;
}

.contact-label { margin-bottom: 26px; }

.contact-heading {
  margin: 0 0 22px;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(34px, 4.2vw, 56px);
  line-height: 1.06;
  letter-spacing: -0.025em;
  max-width: 16ch;
  text-wrap: pretty;
}

.contact-lede {
  margin: 0 0 40px;
  font-size: 17px;
  line-height: 1.62;
  color: var(--ink-muted);
  max-width: 40ch;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

.detail-label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 6px;
}

.detail-value { font-size: 15.5px; }

.detail-address {
  color: var(--ink-soft);
  line-height: 1.5;
}

.form-panel {
  background: var(--bg-alt);
  border: 1px solid var(--border-alt);
  padding: 40px;
}

/* Form */

#contact-form {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

#contact-form[hidden] { display: none; }

.field-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field-label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.field input,
.field textarea {
  border: 1px solid var(--border-input);
  background: var(--bg);
  font-size: 15px;
  color: var(--ink);
  border-radius: 4px;
}

.field input {
  height: 46px;
  padding: 0 14px;
}

.field textarea {
  padding: 13px 14px;
  line-height: 1.55;
  resize: vertical;
  min-height: 120px;
}

.field input:focus,
.field textarea:focus {
  border-color: var(--ink);
}

.field-error {
  font-size: 12.5px;
  color: var(--error);
}

.form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 4px;
  flex-wrap: wrap;
}

.btn-submit {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 50px;
  padding: 0 28px;
  border: none;
  border-radius: 999px;
  background: var(--ink);
  color: var(--bg);
  font-size: 15px;
  cursor: pointer;
  transition: background 0.15s ease;
}

.btn-submit:hover { background: var(--accent); }

.btn-submit:disabled {
  cursor: default;
  opacity: 0.75;
}

.honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-fail {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--error);
}

.form-fail a {
  color: var(--error);
  text-decoration: underline;
}

.form-note {
  font-size: 12.5px;
  color: var(--ink-faint);
  max-width: 26ch;
  line-height: 1.45;
}

/* Success panel */

.form-success {
  min-height: 430px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  animation: thRise 0.5s ease both;
}

.form-success[hidden] { display: none; }

.success-check {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 26px;
}

.form-success h3 {
  margin: 0 0 14px;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 34px;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.form-success p {
  margin: 0 0 30px;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-muted);
  max-width: 38ch;
}

.form-success strong {
  font-weight: 500;
  color: var(--ink);
}

.btn-reset {
  height: 42px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid #C8C8C4;
  background: transparent;
  font-size: 14px;
  cursor: pointer;
  color: var(--ink);
  transition: border-color 0.15s ease;
}

.btn-reset:hover { border-color: var(--ink); }

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
}

.footer-inner {
  padding-top: 44px;
  padding-bottom: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 11px;
}

.footer-copy {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-muted);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 26px;
  flex-wrap: wrap;
}

.footer-links a {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-muted);
}

.footer-links a:hover { color: var(--accent); }

/* ---------- Responsive ---------- */

@media (max-width: 960px) {
  .section-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .hero .container { padding-top: 96px; padding-bottom: 80px; }

  .kioku-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 48px;
  }

  .venture {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  .venture-meta {
    flex-direction: row;
    align-items: center;
    gap: 20px;
  }

  .phase {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 16px 24px;
  }

  .phase p { grid-column: 2; }

  .contact-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 56px;
  }
}

@media (max-width: 760px) {
  .container {
    padding-left: 24px;
    padding-right: 24px;
  }

  .header-inner {
    height: auto;
    flex-wrap: wrap;
    padding-top: 14px;
    padding-bottom: 14px;
    gap: 12px 24px;
  }

  .site-nav {
    gap: 18px;
    flex-wrap: wrap;
  }

  .principles { grid-template-columns: minmax(0, 1fr); }

  .kioku-shots { padding: 28px 20px; }

  .field-row { grid-template-columns: minmax(0, 1fr); }

  .form-panel { padding: 28px 22px; }

  .form-success { min-height: 0; padding: 24px 0; }
}