/* ============================================
   IVAN VEGA BELLIDO
   Scholar's study aesthetic
   ============================================ */

:root {
  --bg:        #f5f0e8;
  --bg-alt:    #efe9df;
  --ink:      #1a1a3e;
  --ink-soft: #2a2a4e;
  --gold:     #c9a84c;
  --gold-deep:#a88a35;
  --body:     #1a1a1a;
  --muted:    #666666;
  --rule:     rgba(26,26,62,0.18);
  --rule-soft:rgba(26,26,62,0.08);

  --serif:  "Cormorant Garamond", "EB Garamond", Georgia, serif;
  --sans:   "Inter", -apple-system, BlinkMacSystemFont, sans-serif;

  --w-narrow: 720px;
  --w-mid:    920px;
  --w-wide:   1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--body);
  font-family: var(--sans);
  font-weight: 300;
  font-size: 17px;
  line-height: 1.7;
  position: relative;
  overflow-x: hidden;
}

/* Background flower-of-life pattern, barely visible */
.bg-pattern {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.035;
}
.bg-pattern svg { width: 100%; height: 100%; display: block; }

main, .nav { position: relative; z-index: 1; }

/* ===== Navigation ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245, 240, 232, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule-soft);
}
.nav-inner {
  max-width: var(--w-wide);
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-brand {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--ink);
  text-decoration: none;
}
.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: var(--ink);
  text-decoration: none;
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: color 0.2s ease;
  position: relative;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 1px;
  background: var(--gold);
  transition: width 0.25s ease;
}
.nav-links a:hover { color: var(--gold-deep); }
.nav-links a:hover::after { width: 100%; }

/* ===== Containers ===== */
.container {
  max-width: var(--w-wide);
  margin: 0 auto;
  padding: 0 32px;
}

/* ===== Hero ===== */
.hero {
  min-height: calc(100vh - 60px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 32px;
}
.hero .container { max-width: var(--w-mid); }
.hero-mark {
  width: 60px;
  height: 60px;
  margin: 0 auto 48px;
  color: var(--gold);
  opacity: 0.85;
  animation: fadeUp 1.2s ease both;
}
.hero-mark svg { width: 100%; height: 100%; }
.hero-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(48px, 7vw, 88px);
  color: var(--ink);
  margin: 0 0 28px;
  letter-spacing: -0.01em;
  line-height: 1.05;
  animation: fadeUp 1.2s 0.1s ease both;
}
.hero-sub {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 400;
  color: var(--ink-soft);
  margin: 0 0 16px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  animation: fadeUp 1.2s 0.25s ease both;
}
.hero-sub .dot {
  color: var(--gold);
  font-style: normal;
  font-weight: 400;
}
.hero-tagline {
  font-family: var(--serif);
  font-size: clamp(17px, 1.6vw, 20px);
  color: var(--muted);
  margin: 0 0 56px;
  font-weight: 300;
  letter-spacing: 0.01em;
  animation: fadeUp 1.2s 0.4s ease both;
}
.hero-cta {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeUp 1.2s 0.55s ease both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 13px 28px;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
}
.btn-primary {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.btn-primary:hover {
  background: transparent;
  color: var(--ink);
}
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}
.btn-ghost:hover {
  background: var(--ink);
  color: var(--bg);
}

/* ===== Sections ===== */
.section {
  padding: 120px 0;
  position: relative;
}
.section-alt {
  background: linear-gradient(180deg, transparent 0%, var(--bg-alt) 12%, var(--bg-alt) 88%, transparent 100%);
}
.section-head {
  display: flex;
  align-items: baseline;
  gap: 24px;
  margin-bottom: 64px;
  max-width: var(--w-narrow);
}
.section-num {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--gold-deep);
}
.section-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(34px, 4.5vw, 48px);
  color: var(--ink);
  margin: 0;
  letter-spacing: -0.005em;
  line-height: 1;
}
.section-rule {
  flex: 1;
  height: 1px;
  background: var(--rule);
  align-self: center;
  transform: translateY(2px);
}

/* ===== Prose blocks (About, Philosophy) ===== */
.prose {
  max-width: var(--w-narrow);
  font-size: 18px;
  line-height: 1.75;
  color: var(--body);
}
.prose p { margin: 0 0 24px; }
.prose .lead {
  font-family: var(--serif);
  font-size: clamp(22px, 2.4vw, 26px);
  font-weight: 300;
  line-height: 1.45;
  color: var(--ink);
  margin-bottom: 32px;
}
.prose .closing {
  font-family: var(--serif);
  font-style: italic;
  font-size: 21px;
  color: var(--ink-soft);
  padding-left: 22px;
  border-left: 2px solid var(--gold);
  margin-top: 36px;
}
.prose em {
  font-style: italic;
  color: var(--ink);
}

/* ===== Research grid ===== */
.research-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  max-width: var(--w-wide);
}
.research-card {
  padding: 40px 36px;
  background: rgba(255, 252, 246, 0.5);
  border: 1px solid var(--rule-soft);
  position: relative;
  transition: border-color 0.3s ease, transform 0.3s ease;
}
.research-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 32px; height: 1px;
  background: var(--gold);
}
.research-card:hover {
  border-color: var(--rule);
  transform: translateY(-2px);
}
.research-kicker {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold-deep);
  margin-bottom: 14px;
}
.research-title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 28px;
  color: var(--ink);
  margin: 0 0 14px;
  line-height: 1.2;
}
.research-affil {
  font-size: 14px;
  color: var(--muted);
  margin: 0 0 24px;
  line-height: 1.55;
}
.research-body {
  font-size: 16px;
  line-height: 1.7;
  margin: 0 0 24px;
}
.research-pubs {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
}
.research-pubs li {
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 10px;
}
.research-pubs a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 1px;
  transition: color 0.25s ease, border-color 0.25s ease;
}
.research-pubs a:hover {
  color: var(--gold-deep);
  border-color: var(--gold);
}
.research-tags {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.research-tags li {
  font-family: var(--serif);
  font-style: italic;
  font-size: 14px;
  color: var(--ink-soft);
  padding: 4px 12px;
  border: 1px solid var(--rule);
  border-radius: 999px;
}

/* ===== Writing ===== */
.writing-intro {
  max-width: var(--w-narrow);
  margin-bottom: 56px;
}
.writing-intro p {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 300;
  font-style: italic;
  color: var(--ink-soft);
  margin: 0;
}
.writing-empty {
  max-width: var(--w-narrow);
  text-align: center;
  padding: 64px 32px;
  border: 1px dashed var(--rule);
}
.writing-empty-mark {
  width: 40px;
  height: 40px;
  margin: 0 auto 20px;
  color: var(--gold);
  opacity: 0.7;
}
.writing-empty-mark svg { width: 100%; height: 100%; }
.writing-empty-text {
  font-family: var(--serif);
  font-style: italic;
  font-size: 17px;
  color: var(--muted);
  margin: 0;
}

/* ===== Contact ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  max-width: var(--w-wide);
}
.contact-block { }
.contact-label {
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 400;
  color: var(--gold-deep);
  margin: 0 0 16px;
}
.contact-link, .contact-links a {
  font-family: var(--serif);
  font-size: 19px;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 2px;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.contact-link:hover, .contact-links a:hover {
  color: var(--gold-deep);
  border-color: var(--gold);
}
.contact-email { word-break: break-all; }
.contact-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.contact-links li { margin-bottom: 12px; }
.contact-loc {
  font-family: var(--serif);
  font-size: 19px;
  color: var(--ink);
  margin: 0;
  line-height: 1.6;
}

/* ===== Footer ===== */
.footer {
  padding: 60px 0 40px;
  border-top: 1px solid var(--rule-soft);
  position: relative;
  z-index: 1;
}
.footer .container {
  text-align: center;
}
.footer-quote {
  font-family: var(--serif);
  font-size: 17px;
  color: var(--ink-soft);
  margin: 0 0 14px;
  letter-spacing: 0.02em;
}
.footer-meta {
  font-size: 12px;
  letter-spacing: 0.15em;
  color: var(--muted);
  margin: 0;
  text-transform: uppercase;
}

/* ===== Selection ===== */
::selection {
  background: var(--ink);
  color: var(--bg);
}

/* ===== Responsive ===== */
@media (max-width: 860px) {
  .nav-inner { padding: 14px 22px; }
  .nav-links { gap: 18px; }
  .nav-links a { font-size: 11px; letter-spacing: 0.08em; }
  .container { padding: 0 22px; }
  .section { padding: 88px 0; }
  .section-head { gap: 16px; margin-bottom: 44px; }
  .research-grid { grid-template-columns: 1fr; gap: 24px; }
  .research-card { padding: 32px 26px; }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-sub { font-size: 18px; gap: 10px; }
  .prose { font-size: 17px; }
  .prose .lead { font-size: 21px; }
}

@media (max-width: 640px) {
  .nav-brand { font-size: 18px; letter-spacing: 0.14em; }
  .nav-links { gap: 14px; }
  .nav-links a { font-size: 10px; letter-spacing: 0.06em; }
  /* hide writing on small screens to keep nav from crowding */
  .nav-links li:nth-child(4) { display: none; }
  .hero { padding: 60px 22px; min-height: calc(100vh - 56px); }
  .hero-mark { margin-bottom: 36px; width: 50px; height: 50px; }
  .hero-title { font-size: clamp(40px, 12vw, 56px); }
  /* On mobile, drop the dot and stack subtitle on its own lines naturally */
  .hero-sub { flex-direction: column; gap: 4px; }
  .hero-sub .dot { display: none; }
  .hero-tagline { margin-bottom: 40px; }
  .hero-cta { flex-direction: column; width: 100%; }
  .hero-cta .btn { width: 100%; }
}

@media (max-width: 420px) {
  .nav-links { gap: 12px; }
  /* hide philosophy too at smallest sizes — it's reachable via scroll */
  .nav-links li:nth-child(3) { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* Telos section */
.telos-block { max-width: 720px; margin: 2.5rem auto 0; }
.telos-label {
  font-family: 'Inter', sans-serif; font-size: 0.72rem; letter-spacing: 0.16em;
  text-transform: uppercase; opacity: 0.5; margin: 0 0 1rem;
}
.telos-item { display: flex; gap: 1rem; align-items: baseline; margin-bottom: 0.9rem; }
.telos-id {
  font-family: 'Inter', sans-serif; font-size: 0.75rem; font-weight: 500;
  letter-spacing: 0.05em; opacity: 0.45; min-width: 2.2rem; white-space: nowrap;
}
.telos-item p { margin: 0; line-height: 1.55; }
.telos-note { text-align: center; opacity: 0.55; margin-top: 2.5rem; font-size: 0.95rem; }