/* ─────────────────────────────────────────────
   RAIN — Static Site Stylesheet
   Fonts: Lexend (400, 500, 600, 700)
───────────────────────────────────────────── */

@import url('https://fonts.googleapis.com/css2?family=Lexend:wght@400;500;600;700&display=swap');

/* ── Tokens ──────────────────────────────── */
:root {
  --paper:      #FAF8F2;
  --tint:       #EEEDFB;
  --ink:        #1A1A1A;
  --ink-2:      #555555;
  --ink-3:      #8A8A8A;
  --hair:       #DAD7CE;
  --hair-soft:  rgba(218,215,206,0.6);
  --accent:     #5B4FE9;
  --serif:      'Lexend', sans-serif;
  --mono:       'Lexend', sans-serif;
}

/* ── Tinted section ──────────────────────── */
.section-tinted {
  background: var(--tint);
  border-top: 1px solid rgba(91,79,233,0.12);
  border-bottom: 1px solid rgba(91,79,233,0.12);
}

/* ── Reset ───────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-weight: 400;
  font-size: 18px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection { background: rgba(70,100,255,0.16); }

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

/* ── Type scale ──────────────────────────── */
h1 {
  font-family: var(--serif);
  font-size: clamp(2.4rem, 5.2vw, 3.4rem);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.1;
  color: var(--ink);
}

h2 {
  font-family: var(--serif);
  font-weight: 500;
}

.text-lead {
  font-family: var(--serif);
  font-size: clamp(1.2rem, 2.4vw, 1.55rem);
  font-weight: 400;
  line-height: 1.5;
}

.text-statement {
  font-family: var(--serif);
  font-size: clamp(1.7rem, 4.4vw, 2.7rem);
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.15;
}

.text-body {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--ink-2);
}

.text-eyebrow {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ── Layout helpers ──────────────────────── */
.container {
  max-width: 60rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 28px;
  padding-right: 28px;
}

.prose {
  max-width: 44rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 28px;
  padding-right: 28px;
}

.section-rule {
  border: none;
  border-top: 1px solid var(--hair-soft);
  margin: 0;
}

/* ── Navigation ──────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  border-bottom: 1px solid var(--hair-soft);
  background: rgba(249,249,251,0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.site-header .container {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.wordmark img { height: 24px; object-fit: contain; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.site-nav a {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  text-decoration: none;
  transition: color 0.18s ease;
  padding-bottom: 2px;
}

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

.site-nav a.active {
  color: var(--ink);
  border-bottom: 1px solid var(--accent);
}

/* ── Footer ──────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--hair-soft);
}

.site-footer .container {
  padding-top: 2.8rem;
  padding-bottom: 2.8rem;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
}

.footer-left {
  display: flex;
  flex-direction: row;
  align-items: flex-end;
  gap: 10px;
}

.footer-left img {
  margin-bottom: 3px;
}

.footer-line {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
  text-align: center;
}

/* ── Mono link ───────────────────────────── */
.mono-link {
  display: inline-block;
  font-family: var(--mono);
  font-weight: 500;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
  transition: opacity 0.18s ease;
}

.mono-link:hover { opacity: 0.5; }

/* ── Section eyebrow row ─────────────────── */
.eyebrow-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 2.4rem;
}

/* ── Frame rows (Runtime Admissibility) ──── */
.frame-table {
  border-left: 2px solid var(--accent);
  border-right: 1px solid var(--hair);
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
  margin-bottom: 3.2rem;
}

.frame-row {
  display: grid;
  grid-template-columns: 96px 1fr;
  border-bottom: 1px solid var(--hair);
}

.frame-key {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(70,100,255,0.04);
  padding: 1.2rem 1rem 1.2rem 1.1rem;
  border-right: 1px solid var(--hair);
  display: flex;
  align-items: center;
}

.frame-val {
  font-family: var(--serif);
  font-size: 1.02rem;
  font-weight: 400;
  line-height: 1.6;
  color: var(--ink);
  padding: 1.1rem 1.5rem;
}

/* ── Modules (Architecture) ──────────────── */
.modules {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 3.2rem;
}

.module {
  background: var(--tint);
  border-left: 3px solid var(--accent);
  border-radius: 0 4px 4px 0;
  padding: 1.8rem 1.8rem 1.8rem 1.6rem;
}

.module-title {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 0.85rem;
}

.module-body {
  font-size: 1.04rem;
  line-height: 1.7;
  color: var(--ink-2);
}

/* ── Contact card ────────────────────────── */
.contact-card {
  border: 1px solid var(--hair);
  padding: 2.4rem 2.6rem;
  background: #fff;
  margin-bottom: 2rem;
}

.contact-name {
  font-family: var(--serif);
  font-size: clamp(1.3rem, 2.8vw, 1.7rem);
  font-weight: 400;
  line-height: 1.25;
  color: var(--ink);
  margin-bottom: 0.4rem;
  margin-top: 1.6rem;
}

.contact-role {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 1.6rem;
}

.contact-divider {
  height: 1px;
  background: var(--hair-soft);
  margin-bottom: 1.6rem;
}

.contact-email {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--ink);
  text-decoration: none;
  transition: color 0.18s ease;
}

.contact-email:hover { color: var(--accent); }

.nda-note {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ── Reveal animation ────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.95s cubic-bezier(0.22,0.6,0.22,1),
              transform 0.95s cubic-bezier(0.22,0.6,0.22,1);
}

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

/* ── Home: Hero ──────────────────────────── */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: clamp(5rem,12vh,9rem) 28px clamp(4rem,10vh,7rem);
}

.hero-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 3rem;
  opacity: 0;
  animation: fadeUp 1s 0.1s cubic-bezier(0.22,0.6,0.22,1) forwards;
}

.hero-logo {
  width: min(400px, 72vw);
  object-fit: contain;
  opacity: 0;
  animation: fadeUp 1.2s 0.2s cubic-bezier(0.22,0.6,0.22,1) forwards;
}

.hero-rule {
  width: 1px;
  height: 52px;
  background: var(--hair);
  margin: 3.2rem auto 0;
  opacity: 0;
  transform: scaleY(0);
  transform-origin: top;
  animation: scaleDown 0.7s 0.55s ease forwards;
}

.hero-tagline {
  font-family: var(--serif);
  font-size: clamp(1.7rem, 3.6vw, 2.4rem);
  font-weight: 500;
  line-height: 1.2;
  color: var(--ink);
  max-width: 26rem;
  margin: 2.4rem auto 0;
  opacity: 0;
  animation: fadeUp 1s 0.65s cubic-bezier(0.22,0.6,0.22,1) forwards;
}

.hero-question {
  font-family: var(--serif);
  font-size: clamp(1.7rem, 4.4vw, 2.7rem);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.15;
  color: var(--ink);
  max-width: 22em;
  margin: 2.6rem auto 0;
  opacity: 0;
  animation: fadeUp 1s 0.8s cubic-bezier(0.22,0.6,0.22,1) forwards;
}

.hero-question span { color: var(--ink-2); }

/* ── Home: Statement ─────────────────────── */
.statement-section {
  text-align: center;
  padding: clamp(5rem,12vh,9rem) 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* ── Keyframes ───────────────────────────── */
@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
  from { opacity: 0; transform: translateY(12px); }
}

@keyframes scaleDown {
  to { opacity: 1; transform: scaleY(1); }
}

/* ── Questions section ───────────────────── */
.question-list { border-top: 1px solid var(--hair); margin-top: 2.4rem; }

.question-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 2rem;
  align-items: baseline;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--hair);
}

.question-key {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
}

.question-text {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(0.95rem, 1.6vw, 1.15rem);
  font-weight: 500;
  line-height: 1.3;
  color: var(--ink);
}

/* ── Big question close ──────────────────── */
.big-question-section {
  text-align: center;
  padding: clamp(5rem,12vh,9rem) 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.big-question-kicker {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--ink-3);
  margin: 0 0 1.8rem;
}

.big-question-text {
  margin: 0 auto;
  max-width: 20ch;
  font-family: var(--serif);
  font-size: clamp(1.5rem, 3.5vw, 2.5rem);
  font-weight: 500;
  line-height: 1.2;
  color: var(--ink);
}

/* ── Hero sub-line (mono) ────────────────── */
.hero-sub-line {
  font-family: var(--mono);
  font-size: clamp(0.62rem, 1.4vw, 0.78rem);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 1.8rem auto 0;
  opacity: 0;
  animation: fadeUp 1s 0.8s cubic-bezier(0.22,0.6,0.22,1) forwards;
}

/* ── Hamburger button ────────────────────── */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.3s ease, opacity 0.3s ease;
  transform-origin: center;
}

.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── Mobile menu overlay ─────────────────── */
.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 99;
  background: rgba(249,249,251,0.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.8rem;
}

.mobile-menu.open { display: flex; }

.mobile-menu a {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-3);
  text-decoration: none;
  transition: color 0.18s;
}

.mobile-menu a.active {
  color: var(--ink);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
}

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

/* ── Responsive ───────────────────────────── */
@media (max-width: 768px) {
  /* Nav */
  .site-nav { display: none; }
  .nav-toggle { display: flex; }
  .wordmark img { height: 22px; }

  /* Reduce padding on small screens */
  .prose  { padding-left: 20px; padding-right: 20px; }
  .container { padding-left: 20px; padding-right: 20px; }

  /* Contact card: stack logo above details */
  .contact-sig-table,
  .contact-sig-table tr,
  .contact-sig-table td {
    display: block !important;
    width: 100% !important;
  }
  .contact-sig-table td:first-child {
    padding: 0 0 1.6rem 0 !important;
  }
  .contact-sig-table td:last-child {
    border-left: none !important;
    border-top: 1px solid var(--hair-soft) !important;
    padding: 1.6rem 0 0 0 !important;
  }

  /* Footer: stacked on mobile */
  .site-footer .container {
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    text-align: center;
    gap: 10px;
    padding-top: 2rem;
    padding-bottom: 2rem;
  }
  .footer-left {
    flex-direction: column !important;
    align-items: center !important;
    gap: 8px;
  }

  /* Frame table: tighten label column */
  .frame-row { grid-template-columns: 72px 1fr; }
  .frame-key { padding: 1rem 0.7rem 1rem 0.8rem; font-size: 10px; letter-spacing: 0.14em; }
  .frame-val { padding: 1rem 1rem; font-size: 0.96rem; }

  /* Contact card padding */
  .contact-card { padding: 1.8rem 1.4rem; }
}