:root {
  /* Trial Guide palette — tg-01 brand board (see DOCUMENT-DESIGN-STATE.md) */
  --bg: #F4F6FA;         /* Soft Mist */
  --bg-deep: #1C1433;    /* Deep Indigo — reversed dark bands */
  --surface: #FFFFFF;    /* cards */
  --primary: #6B4CE6;    /* Violet */
  --primary-hover: #5538C4;
  --periwinkle: #6B4CE6; /* violet accent alias (light theme) */
  --accent: #FF5FAE;     /* Pink — sparingly */
  --lavender: #B79BFF;   /* accents on dark bands */
  --text: #1C1433;       /* Deep Indigo */
  --text-secondary: #5D5873;
  --line: rgba(28, 20, 51, .12);
  --content-width: 1140px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
}

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

a:focus-visible, button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 20;
  transform: translateY(-200%);
  padding: .6rem .85rem;
  border-radius: .35rem;
  background: var(--text);
  color: var(--bg);
  font-weight: 700;
}
.skip-link:focus { transform: translateY(0); }

.container { width: min(var(--content-width), calc(100% - 2.5rem)); margin-inline: auto; }

.site-header { border-bottom: 1px solid rgba(28, 20, 51, .1); background: rgba(244, 246, 250, .92); }
.header-inner { display: flex; min-height: 4.65rem; align-items: center; justify-content: space-between; gap: 1rem; }
.wordmark { display: inline-flex; align-items: center; gap: .5rem; text-decoration: none; font-family: Poppins, Inter, Arial, sans-serif; font-weight: 700; letter-spacing: -.04em; white-space: nowrap; }
.wordmark-mark { display: grid; width: 1.55rem; height: 1.35rem; place-items: center; border-radius: .35rem; background: var(--primary); color: white; font-size: .65rem; transform: rotate(-3deg); }
nav { display: none; }
.header-contact { color: var(--text); font-size: .88rem; font-weight: 600; text-decoration-color: var(--accent); text-decoration-thickness: 2px; text-underline-offset: .25rem; white-space: nowrap; }

.hero { position: relative; overflow: hidden; padding: 4.75rem 0 4rem; }
.hero-glow { position: absolute; width: 34rem; height: 34rem; top: -12rem; right: -15rem; border-radius: 50%; background: radial-gradient(circle, rgba(107,76,230,.16), transparent 68%); pointer-events: none; }
.hero-grid { position: relative; display: grid; gap: 3rem; align-items: center; }
.hero-copy { max-width: 40rem; }
.eyebrow { margin: 0 0 .9rem; color: var(--periwinkle); font-size: .75rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.13; letter-spacing: -.025em; font-family: Poppins, Inter, Arial, sans-serif; }
h1 { max-width: 11ch; margin-bottom: 1.25rem; font-size: clamp(2.45rem, 9vw, 4.6rem); }
h2 { margin-bottom: 1.2rem; font-size: clamp(2rem, 5vw, 3.4rem); }
h3 { margin-bottom: .6rem; font-size: 1.15rem; }
.hero-tagline { margin-bottom: .75rem; color: var(--text); font-size: clamp(1.15rem, 2.3vw, 1.45rem); font-weight: 600; }
.hero-intro, .section-lede { max-width: 36rem; color: var(--text-secondary); font-size: 1.08rem; }
.button-group { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.85rem; }
.button { display: inline-flex; min-height: 3rem; align-items: center; justify-content: center; gap: .55rem; padding: .7rem 1rem; border: 1px solid transparent; border-radius: .5rem; font-weight: 600; line-height: 1.2; text-align: center; text-decoration: none; transition: background-color .18s ease, border-color .18s ease, transform .18s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--primary); color: white; }
.button-primary:hover { background: var(--primary-hover); }
.button-ghost { border-color: var(--periwinkle); color: var(--text); }
.button-ghost:hover { background: rgba(107,76,230,.10); }
.hero-artwork { width: min(100%, 34rem); margin: 0 auto; border: 1px solid rgba(28, 20, 51, .14); border-radius: .75rem; overflow: hidden; box-shadow: 0 1.25rem 3rem rgba(28, 20, 51, .14); background: #FFFFFF; }

.section { padding: 4.5rem 0; }
.section-deep { background: var(--bg-deep); color: #F4F6FA; }
.section-deep .eyebrow { color: var(--lavender); }
.section-deep .section-lede, .section-deep .prose { color: #BFB2E0; }
.section-deep .feature-list li { background: rgba(244, 246, 250, .06); border-color: rgba(183, 155, 255, .22); }
.section-deep .feature-list span { color: #BFB2E0; }
.split-grid, .about-grid { display: grid; gap: 2rem; }
.prose { max-width: 42rem; color: var(--text-secondary); }
.prose p:last-child { margin-bottom: 0; }

.make-grid { display: grid; gap: 2.5rem; align-items: center; }
.make-artwork { max-width: 19rem; margin: 0 auto; overflow: hidden; border-radius: .75rem; border: 1px solid rgba(28, 20, 51, .12); background: white; }
.feature-list { display: grid; gap: .75rem; padding: 0; margin: 1.6rem 0 0; list-style: none; }
.feature-list li { display: grid; gap: .15rem; padding: 1rem; border: 1px solid var(--line); border-radius: .75rem; background: var(--surface); }
.feature-list strong { font-size: .97rem; }
.feature-list span { color: var(--text-secondary); font-size: .93rem; }

.alignment { background: linear-gradient(110deg, rgba(107,76,230,.10), transparent 55%), var(--bg); }
.alignment-inner { max-width: 48rem; }
.alignment p:not(.eyebrow) { color: var(--text-secondary); font-size: 1.08rem; }
.fine-print { padding-top: .55rem; border-top: 1px solid var(--line); font-size: .9rem !important; }

.section-heading { max-width: 43rem; }
.steps { display: grid; gap: 1rem; padding: 0; margin: 2.25rem 0 0; list-style: none; counter-reset: steps; }
.steps li { min-height: 100%; padding: 1.5rem; border: 1px solid var(--line); border-radius: .75rem; background: var(--surface); }
.steps p { margin-bottom: 0; color: var(--text-secondary); font-size: .94rem; }
.step-number { display: inline-block; margin-bottom: 1.5rem; color: var(--accent); font-size: .78rem; font-weight: 700; letter-spacing: .1em; }

.contact { padding-top: 5rem; padding-bottom: 5rem; }
.contact-card { display: grid; gap: 2rem; padding: 2rem; border: 1px solid rgba(255,95,174,.45); border-radius: .9rem; background: linear-gradient(130deg, rgba(107,76,230,.14), rgba(234,216,249,.45) 65%); }
.contact-card h2 { margin-bottom: .75rem; }
.contact-card p:not(.eyebrow) { margin-bottom: 0; color: var(--text-secondary); }
.contact-actions { display: flex; flex-direction: column; align-items: flex-start; justify-content: center; gap: .8rem; }
.contact-stub { font-size: .86rem; }

.site-footer { padding: 1.7rem 0; border-top: 1px solid rgba(28, 20, 51, .1); }
.footer-inner { display: flex; flex-direction: column; gap: .3rem; color: var(--text-secondary); font-size: .78rem; }
.footer-inner p { margin: 0; }

@media (min-width: 640px) {
  .container { width: min(var(--content-width), calc(100% - 4rem)); }
  .hero { padding-block: 5.5rem; }
  .feature-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .contact-card { padding: 2.6rem; }
  .footer-inner { flex-direction: row; justify-content: space-between; gap: 1rem; }
}

@media (min-width: 768px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr) minmax(18rem, .83fr); gap: 3.5rem; }
  .hero-artwork { margin-inline: 0; justify-self: end; }
  .split-grid, .about-grid { grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: 5rem; }
  .make-grid { grid-template-columns: minmax(15rem, .72fr) minmax(0, 1.28fr); gap: 5rem; }
  .make-artwork { width: 100%; }
  .contact-card { grid-template-columns: 1.15fr .85fr; align-items: center; }
}

@media (min-width: 1024px) {
  .section { padding: 5.75rem 0; }
  .hero { padding-block: 6.75rem; }
  nav { display: flex; gap: 1.7rem; margin-left: auto; }
  nav a { color: var(--text-secondary); font-size: .88rem; text-decoration: none; }
  nav a:hover { color: var(--text); }
  .header-contact { margin-left: .75rem; }
  .steps { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

/* ---- Interactive process rail (How it works) ---- */
.process-rail { display: grid; gap: 1.6rem; }
.process-tabs { display: grid; grid-template-columns: repeat(6, 1fr); gap: .55rem; padding: 0; margin: 0; list-style: none; }
.process-tab { display: grid; gap: .35rem; width: 100%; padding: .85rem .7rem; border: 1px solid var(--line); border-radius: .65rem; background: var(--surface); color: var(--text-secondary); font: inherit; text-align: left; cursor: pointer; transition: border-color .18s ease, background-color .18s ease, color .18s ease, transform .18s ease, box-shadow .18s ease; }
.process-tab-num { font-family: Poppins, Inter, Arial, sans-serif; font-weight: 700; font-size: .8rem; letter-spacing: .08em; color: var(--primary); }
.process-tab-label { font-weight: 600; font-size: .83rem; line-height: 1.3; }
.process-tab:hover, .process-tab:focus-visible { border-color: var(--primary); transform: translateY(-2px); box-shadow: 0 10px 22px -14px rgba(28, 20, 51, .35); }
.process-tab.is-active { border-color: var(--primary); background: var(--primary); color: #fff; }
.process-tab.is-active .process-tab-num { color: rgba(255, 255, 255, .85); }
.process-panels { position: relative; }
.process-panel { display: none; padding: 1.6rem 1.75rem; background: var(--surface); border: 1px solid var(--line); border-radius: .9rem; box-shadow: 0 18px 40px -24px rgba(28, 20, 51, .3); }
.process-panel.is-active { display: block; animation: panelIn .22s ease; }
.process-panel h3 { margin: 0 0 .45rem; font-family: Poppins, Inter, Arial, sans-serif; font-weight: 700; font-size: 1.28rem; letter-spacing: -.02em; }
.process-panel p { margin: 0; color: var(--text-secondary); max-width: 52ch; }
@keyframes panelIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@media (max-width: 900px) { .process-tabs { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 560px) { .process-tabs { grid-template-columns: repeat(2, 1fr); } .process-tab-label { font-size: .78rem; } .process-panel { padding: 1.25rem 1.1rem; } }

/* ---- Guidance & evidence band (dark) ---- */
.guidance .guidance-card { padding: 1.9rem 2rem; border-radius: 1rem; background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .16); }
.guidance-lede { font-size: 1.05rem; line-height: 1.75; color: rgba(244, 246, 250, .82); max-width: 70ch; margin: 0 0 1.35rem; }
.guidance-lede a { color: var(--lavender); font-weight: 600; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.guidance-links { display: flex; flex-wrap: wrap; gap: .6rem; padding: 0; margin: 0; list-style: none; }
.guidance-links a { display: inline-flex; align-items: center; gap: .4rem; padding: .55rem .95rem; border: 1px solid rgba(255, 255, 255, .22); border-radius: 2rem; color: rgba(244, 246, 250, .9); font-weight: 600; font-size: .9rem; text-decoration: none; transition: border-color .18s ease, color .18s ease, background-color .18s ease; }
.guidance-links a:hover { border-color: var(--lavender); color: #fff; background: rgba(183, 155, 255, .12); }