/* ============================================================
   BARUN VERMA — brand system v2
   Editorial-SaaS: white ground, blue accent, the Morse Mirror mark
   (B forwards / V backwards — his initials in Morse code, exact
   mirrors of each other). Logo: Space Mono-free, uses Libre Caslon
   Display only for the wordmark; everything else is system sans.
   ============================================================ */

:root {
  --bg: #FFFFFF;
  --ink: #16181D;
  --ink-body: #33363B;
  --text-2: #55595F;
  --text-3: #85898F;
  --border: #E8EAEC;
  --border-hover: #C9CDD2;
  --card: #F5F6F7;
  --blue: #2255CC;
  --blue-hover: #16408F;
  --blue-bg: #EFF4FF;
  --blue-light: #7FA4EE;
  --dark: #16181D;
  --dark-text: #F2F3F5;
  --dark-text-soft: #A7ABB2;
  --logo-red: #9E2B25;
  --logo-black: #17140F;

  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-word: "Libre Caslon Display", serif;

  --measure: 720px;
  --wide: 1040px;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* ---------- Reset & base ---------- */

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

html { scroll-behavior: smooth; }

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

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

::selection { background: #D6E4FF; }

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

:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ---------- Skip link ---------- */

.skip-link {
  position: absolute;
  left: 1rem; top: -4rem;
  z-index: 100;
  background: var(--ink);
  color: #fff;
  font-size: 0.85rem;
  padding: 0.6rem 1rem;
  border-radius: 8px;
  text-decoration: none;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 1rem; }

/* ---------- Motion ---------- */

@keyframes riseIn {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
.rise { animation: riseIn 0.5s var(--ease) both; }
.rise-1 { animation-delay: .06s; }
.rise-2 { animation-delay: .12s; }
.rise-3 { animation-delay: .18s; }
.rise-4 { animation-delay: .24s; }

.swap {
  display: inline-block;
  transition: opacity .18s ease, transform .18s ease, filter .18s ease;
}
.swap.is-swapping {
  opacity: 0;
  transform: translateY(5px);
  filter: blur(2px);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255,255,255,0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-bar {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 10px 16px;
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
@media (min-width: 640px) { .nav-bar { padding: 0 24px; flex-wrap: nowrap; } }

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--ink);
}
.logo-stack {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
}
.logo-mark { flex-shrink: 0; }
.logo-text {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  line-height: 1.15;
}
.logo-word {
  font-family: var(--font-word);
  font-weight: 400;
  font-size: 17px;
  color: var(--logo-black);
  white-space: nowrap;
  text-align: center;
}
.logo-tag {
  font-size: 8px;
  font-weight: 600;
  text-align: justify;
  text-align-last: justify;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
  white-space: nowrap;
}

.nav-links {
  display: flex;
  gap: 22px;
  font-size: 14px;
  font-weight: 500;
  align-items: center;
}
.nav-link {
  color: var(--text-2);
  text-decoration: none;
  transition: color .15s ease;
}
.nav-link:hover { color: var(--ink); }

.nav-right { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }

/* Reader toggle: Standard / Decision-maker / Builder */
.reader-toggle {
  display: flex;
  align-items: center;
  background: #EFF1F3;
  border-radius: 10px;
  padding: 3px;
  gap: 2px;
  flex-wrap: nowrap;
}
.reader-btn {
  appearance: none;
  border: none;
  border-radius: 8px;
  padding: 6px 12px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  background: transparent;
  color: var(--text-2);
  transition: background .15s ease, color .15s ease, box-shadow .15s ease;
}
@media (max-width: 639px) {
  .reader-btn { padding: 6px 8px; font-size: 11px; }
}
.reader-btn[aria-pressed="true"] {
  background: #FFFFFF;
  color: var(--ink);
  box-shadow: 0 1px 3px rgba(22,24,29,0.14);
}

/* Note-page scroll progress bar */
.progress-track { height: 2px; background: var(--border); }
.progress-bar { height: 2px; width: 0%; background: var(--blue); transition: width .1s linear; }

/* ---------- Layout helpers ---------- */

.wrap { max-width: var(--wide); margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: var(--measure); margin: 0 auto; padding: 0 24px; }

.section { padding: 80px 24px; }
.section-alt { background: var(--card); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.section-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 14px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
@media (max-width: 820px) {
  .grid-2 { grid-template-columns: 1fr !important; }
  .hide-m { display: none !important; }
}

/* ---------- Type ---------- */

h1, h2 { font-weight: 700; letter-spacing: -0.02em; margin: 0; line-height: 1.15; }
h1 { font-size: 54px; letter-spacing: -0.025em; line-height: 1.08; }
h2 { font-size: 34px; }
p { margin: 0; }

/* ---------- Badge ---------- */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--blue-bg);
  color: var(--blue);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 24px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: 10px;
  transition: transform .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { color: #fff; }
.btn-secondary { background: #EFF1F3; color: var(--ink); }
.btn-secondary:hover { color: var(--ink); }

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

.hero { padding: 88px 24px 72px; }
.hero-grid { display: grid; grid-template-columns: 1fr 340px; gap: 64px; align-items: center; }
.hero-body { max-width: 640px; }
.hero-sub { font-size: 19px; color: var(--text-2); margin: 0 0 32px; max-width: 560px; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }

.hero-portrait-frame {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
}
.hero-portrait-frame img { display: block; width: 100%; height: auto; }
.hero-portrait-cap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
  padding: 0 4px;
}
.hero-portrait-name { font-size: 14px; font-weight: 600; }
.hero-portrait-role { font-size: 13px; color: var(--text-2); }

@media (max-width: 820px) {
  h1 { font-size: 40px !important; }
  .hero-grid { grid-template-columns: 1fr !important; }
}

/* ---------- Callout card (thesis note, in-one-paragraph) ---------- */

.callout {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
  font-size: 14px;
  color: var(--text-2);
}
.callout-alt {
  background: var(--card);
  border-radius: 16px;
  padding: 24px 26px;
}
.callout-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 10px;
}

/* ---------- Timeline (story section) ---------- */

.timeline { display: flex; flex-direction: column; gap: 12px; }
.timeline-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px 22px;
}
.timeline-date { font-size: 13px; font-weight: 600; color: var(--text-2); margin-bottom: 6px; }
.timeline-title { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.timeline-desc { font-size: 15px; color: var(--text-2); }

/* ---------- Cards: notes grid, doors ---------- */

.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 820px) { .card-grid { grid-template-columns: 1fr !important; } }
.card-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; max-width: 860px; margin: 0 auto; }
@media (max-width: 820px) { .card-grid-2 { grid-template-columns: 1fr !important; } }

.card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  text-decoration: none;
  color: var(--ink);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(22,24,29,0.08);
  border-color: var(--border-hover);
  color: var(--ink);
}
.card-top { display: flex; justify-content: space-between; align-items: center; }
.card-num { font-size: 13px; font-weight: 700; color: var(--blue); }
.card-meta { font-size: 13px; color: var(--text-3); }
.card-title { font-size: 19px; font-weight: 700; letter-spacing: -0.01em; line-height: 1.25; }
.card-desc { font-size: 15px; color: var(--text-2); margin: 0; flex: 1; }
.card-cta { font-size: 14px; font-weight: 600; color: var(--blue); }

.door-label { font-size: 13px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-3); margin-bottom: 12px; }
.door-quote { font-size: 18px; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 8px; }
.door-desc { font-size: 15px; color: var(--text-2); margin: 0; }

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

.contact-head { text-align: center; max-width: 620px; margin: 0 auto 44px; }
.contact-head p { font-size: 17px; color: var(--text-2); }
.contact-plain { text-align: center; font-size: 15px; color: var(--text-2); margin: 36px 0 0; }
.contact-plain a { font-weight: 600; }

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

.site-footer { border-top: 1px solid var(--border); }
.footer-bar {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-3);
}
.footer-brand { display: flex; align-items: center; gap: 8px; color: var(--text-3); }
.footer-link { color: var(--text-2); font-weight: 600; }

/* ---------- Article / note pages ---------- */

.note-header { max-width: var(--measure); margin: 0 auto; padding: 72px 24px 0; }
.note-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--blue-bg);
  color: var(--blue);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 22px;
}
.note-title { font-size: 44px; font-weight: 700; letter-spacing: -0.025em; line-height: 1.12; margin: 0 0 18px; }
@media (max-width: 820px) { .note-title { font-size: 34px !important; } }
.note-sub { font-size: 20px; color: var(--text-2); margin: 0 0 24px; }
.meta-pills { display: flex; gap: 8px; flex-wrap: wrap; font-size: 13px; font-weight: 500; color: var(--text-2); }
.meta-pill { background: var(--card); border: 1px solid var(--border); border-radius: 999px; padding: 5px 12px; }

.summary-card { margin-top: 36px; }

.note-body { max-width: var(--measure); margin: 0 auto; padding: 48px 24px 0; }
.note-body p { font-size: 18px; color: var(--ink-body); margin: 0 0 20px; }
.note-body p.lede-strong { font-weight: 600; color: var(--ink); }
.note-body h2 { font-size: 26px; letter-spacing: -0.02em; line-height: 1.25; margin: 0 0 16px; }

.quote-block {
  margin: 0 0 24px;
  padding: 28px 32px;
  background: var(--dark);
  color: #fff;
  border-radius: 16px;
}
.quote-text { font-size: 22px; font-weight: 600; letter-spacing: -0.01em; line-height: 1.35; margin: 0 0 10px; }
.quote-caption { font-size: 14px; color: var(--dark-text-soft); }

.aside-note {
  display: flex;
  gap: 12px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
  margin: 0 0 40px;
  font-size: 14px;
  color: var(--text-2);
}
.aside-num { color: var(--blue); font-weight: 700; flex-shrink: 0; }

.sup-ref { color: var(--blue); font-weight: 700; }

.work-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 44px; }
@media (max-width: 820px) { .work-grid { grid-template-columns: 1fr !important; } }
.work-card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 22px; }
.work-kicker { font-size: 13px; font-weight: 700; color: var(--blue); margin-bottom: 8px; }
.work-title { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.work-title-lg { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.work-desc { font-size: 15px; color: var(--text-2); margin: 0; }

.keep-card { background: var(--dark); color: #fff; border-radius: 20px; padding: 36px 40px; margin-bottom: 44px; }
.keep-label { font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--blue-light); margin-bottom: 14px; }
.keep-body { font-size: 19px; line-height: 1.55; margin: 0 0 16px; color: var(--dark-text); }
.keep-sub { font-size: 16px; line-height: 1.55; margin: 0; color: var(--dark-text-soft); }

.next-card { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-bottom: 72px; }
.next-label { display: block; font-size: 13px; font-weight: 700; color: var(--blue); margin-bottom: 6px; }
.next-title { display: block; font-size: 19px; font-weight: 700; letter-spacing: -0.01em; }
.next-arrow { font-size: 22px; color: var(--blue); flex-shrink: 0; }

/* ---------- Print ---------- */
@media print {
  .site-header, .site-footer, .reader-toggle { display: none; }
}