/* ==========================================================================
   The Venture Bench — stylesheet
   Colors and type sourced from the official brand kit (04_Color_Files).
   ========================================================================== */

:root {
  /* Brand colors — from TVB_Colors.json / TVB_CSS_Variables.css */
  --navy: #0B1D3A;
  --teal: #0D6B7A;
  --aqua: #22B5B0;
  --green: #6BC64A;
  --slate: #A7B1BF;
  --white: #FFFFFF;
  --black: #000000;

  /* Derived neutrals for layout (tints of brand colors only) */
  --bg-light: #F5F8FA;         /* tint of white/slate for section backgrounds */
  --bg-panel: #EEF3F5;         /* tint used behind cards */
  --border-soft: #E2E8ED;
  --text-body: #33465F;        /* navy, lightened for body copy */
  --text-muted: #63728A;       /* slate-leaning muted text */

  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;

  --shadow-soft: 0 10px 30px -12px rgba(11, 29, 58, 0.18);
  --shadow-card: 0 2px 10px rgba(11, 29, 58, 0.06);

  --max-width: 1180px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text-body);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

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

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--navy);
  margin: 0 0 0.5em 0;
  line-height: 1.15;
  font-weight: 600;
  letter-spacing: -0.01em;
}

p { margin: 0 0 1em 0; }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 96px 0; }

@media (max-width: 720px) {
  section { padding: 64px 0; }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 16px;
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--aqua);
  display: inline-block;
}

.section-head {
  max-width: 640px;
  margin: 0 0 56px 0;
}

.section-head.centered {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-head p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* Buttons ---------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 26px;
  border-radius: 999px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--teal);
  color: var(--white);
  box-shadow: 0 8px 20px -8px rgba(13, 107, 122, 0.55);
}

.btn-primary:hover { background: var(--aqua); transform: translateY(-1px); }

.btn-outline {
  background: transparent;
  color: var(--navy);
  border-color: var(--border-soft);
}

.btn-outline:hover { border-color: var(--teal); color: var(--teal); }

.btn-outline-invert {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.35);
}

.btn-outline-invert:hover { border-color: var(--white); }

.btn-light {
  background: var(--white);
  color: var(--navy);
}

.btn-light:hover { background: var(--bg-panel); transform: translateY(-1px); }

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.site-header.is-scrolled {
  border-bottom-color: var(--border-soft);
  box-shadow: 0 4px 20px -12px rgba(11,29,58,0.15);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
  gap: 24px;
}

.brand-logo { height: 34px; width: auto; }
.brand-logo img { height: 100%; width: auto; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.main-nav a {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-body);
  transition: color 0.15s ease;
}

.main-nav a:hover { color: var(--teal); }

.header-actions { display: flex; align-items: center; gap: 12px; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  margin: 5px 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

@media (max-width: 860px) {
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
    gap: 18px;
    border-bottom: 1px solid var(--border-soft);
    box-shadow: var(--shadow-soft);
    display: none;
  }
  .main-nav.is-open { display: flex; }
  .nav-toggle { display: block; }
}

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

.hero {
  padding: 88px 0 60px;
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(34,181,176,0.12), transparent 60%),
    radial-gradient(700px 380px at 5% 10%, rgba(107,198,74,0.08), transparent 55%),
    var(--white);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

@media (max-width: 940px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
}

.hero h1 {
  font-size: clamp(2.2rem, 4.2vw, 3.4rem);
  margin-bottom: 24px;
}

.hero h1 .accent { color: var(--teal); }

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 520px;
  margin-bottom: 36px;
}

.hero-cta-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
}

.hero-meta-item {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-display);
}

.hero-meta-item strong {
  color: var(--navy);
  font-size: 1.3rem;
  font-weight: 700;
}

.hero-meta-item span {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual-card {
  background: var(--white);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: 44px 32px;
  width: 100%;
  max-width: 460px;
}

.hero-visual-card svg { width: 100%; height: auto; }

.hero-visual-caption {
  text-align: center;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--navy);
  margin-top: 20px;
  font-size: 0.95rem;
}

.hero-visual-caption span {
  display: block;
  font-weight: 400;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 4px;
}

/* Logo strip ------------------------------------------------------------- */

.strip {
  padding: 36px 0;
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}

.strip-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  text-align: center;
}

.strip p {
  margin: 0;
  color: var(--text-muted);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.95rem;
}

/* Problem / framing section ------------------------------------------------ */

.framing { background: var(--bg-light); }

.framing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

@media (max-width: 820px) {
  .framing-grid { grid-template-columns: 1fr; }
}

.framing-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-soft);
}

.framing-card .node {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.framing-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.framing-card p { color: var(--text-muted); font-size: 0.97rem; margin-bottom: 0; }

/* Services ----------------------------------------------------------------- */

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

@media (max-width: 940px) {
  .services-grid { grid-template-columns: 1fr; }
}

.service-card {
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.service-card:hover { box-shadow: var(--shadow-soft); transform: translateY(-3px); }

.service-index {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--white);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}

.service-card h3 { font-size: 1.25rem; margin-bottom: 12px; }
.service-card > p { color: var(--text-muted); margin-bottom: 20px; }

.service-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.service-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.93rem;
  color: var(--text-body);
}

.service-list li::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  margin-top: 8px;
  background: var(--aqua);
}

/* How it works / process -------------------------------------------------- */

.process { background: var(--bg-light); }

.process-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 20px;
}

@media (max-width: 940px) {
  .process-track { grid-template-columns: 1fr; }
}

.process-step {
  background: var(--white);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  position: relative;
}

.process-step .step-node {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 18px;
  font-size: 0.95rem;
}

.process-step h4 { font-size: 1.02rem; margin-bottom: 8px; }
.process-step p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 0; }

.process-diagram {
  margin-top: 64px;
  background: var(--white);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  box-shadow: var(--shadow-card);
}

.process-diagram svg { width: 100%; height: auto; display: block; }

/* Who we serve --------------------------------------------------------------- */

.audience-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: start;
}

@media (max-width: 900px) {
  .audience-grid { grid-template-columns: 1fr; gap: 32px; }
}

.audience-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.audience-list li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.audience-check {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(34,181,176,0.12);
  color: var(--teal);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}

.audience-list h4 { margin: 0 0 4px 0; font-size: 1.02rem; }
.audience-list p { margin: 0; color: var(--text-muted); font-size: 0.93rem; }

.audience-panel {
  background: var(--navy);
  border-radius: var(--radius-lg);
  padding: 40px 34px;
  color: var(--white);
}

.audience-panel .eyebrow { color: var(--aqua); }
.audience-panel h3 { color: var(--white); font-size: 1.3rem; }
.audience-panel p { color: rgba(255,255,255,0.72); font-size: 0.96rem; }

.audience-stage-list {
  list-style: none;
  margin: 24px 0 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.audience-stage-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: var(--font-display);
  font-weight: 500;
}

.audience-stage-list .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: 0 0 auto;
}

/* Quote / positioning band ------------------------------------------------- */

.band {
  background: var(--navy);
  color: var(--white);
  text-align: center;
}

.band blockquote {
  margin: 0 auto;
  max-width: 760px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  line-height: 1.35;
  color: var(--white);
}

.band cite {
  display: block;
  margin-top: 20px;
  font-style: normal;
  color: var(--aqua);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

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

.contact {
  background: var(--navy);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px 320px at 90% 0%, rgba(34,181,176,0.18), transparent 60%),
    radial-gradient(500px 300px at 0% 100%, rgba(107,198,74,0.12), transparent 55%);
  pointer-events: none;
}

.contact-grid {
  position: relative;
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 56px;
  align-items: start;
}

@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; gap: 36px; }
}

.contact-intro .eyebrow { color: var(--aqua); }
.contact-intro h2 { color: var(--white); }
.contact-intro p { color: rgba(255,255,255,0.72); font-size: 1.02rem; }

.contact-points {
  list-style: none;
  margin: 32px 0 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-points li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  color: rgba(255,255,255,0.85);
  font-size: 0.95rem;
}

.contact-points li::before {
  content: "";
  margin-top: 7px;
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
}

.contact-form {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-soft);
}

.contact-form h3 { font-size: 1.2rem; margin-bottom: 6px; }
.contact-form .form-note { color: var(--text-muted); font-size: 0.88rem; margin-bottom: 24px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 520px) {
  .form-row { grid-template-columns: 1fr; }
}

.field { margin-bottom: 18px; }

.field label {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--navy);
  margin-bottom: 6px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 12px 14px;
  border: 1.5px solid var(--border-soft);
  border-radius: var(--radius-sm);
  background: var(--white);
  color: var(--text-body);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(13,107,122,0.12);
}

.field textarea { resize: vertical; min-height: 110px; }

.form-hidden { position: absolute; left: -9999px; }

.contact-form .btn { width: 100%; }

.form-success {
  display: none;
  text-align: center;
  padding: 40px 10px;
}

.form-success.is-visible { display: block; }
.contact-form form.is-hidden { display: none; }

.form-success .check {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(34,181,176,0.12);
  color: var(--teal);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  font-size: 1.5rem;
}

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

.site-footer {
  background: var(--navy);
  color: rgba(255,255,255,0.65);
  padding-top: 56px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}

@media (max-width: 780px) {
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
}

.footer-brand .brand-logo { height: 30px; margin-bottom: 16px; }
.footer-brand p { color: rgba(255,255,255,0.55); font-size: 0.92rem; max-width: 320px; }

.footer-col h5 {
  font-family: var(--font-display);
  color: var(--white);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.footer-col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-size: 0.92rem; color: rgba(255,255,255,0.65); transition: color 0.15s ease; }
.footer-col a:hover { color: var(--white); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.45);
}

/* Reveal-on-scroll ------------------------------------------------------------ */

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Utility -------------------------------------------------------------------- */

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--navy);
  color: var(--white);
  padding: 12px 18px;
  border-radius: 0 0 8px 0;
  z-index: 200;
}

.skip-link:focus { left: 0; }