/* IRIS Foresight™ — Public Research · Genève
   Design system aligned to approved mockup
   paper / limestone / ink / deep-ink / carmine
*/

:root {
  --paper: #fbf7f1;
  --limestone: #f3e5d6;
  --sand: #e8d9c4;
  --ink: #0d2b55;
  --deep-ink: #071b36;
  --muted: #5a6a7e;
  --carmine: #b3222e;
  --line: rgba(13, 43, 85, 0.12);
  --line-strong: rgba(13, 43, 85, 0.22);
  --serif: Georgia, "Times New Roman", Times, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --max: 1120px;
  --pad: clamp(1.25rem, 4vw, 2.5rem);
}

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

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--ink); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { color: var(--carmine); }
:focus-visible { outline: 2px solid var(--carmine); outline-offset: 3px; }

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--deep-ink);
  color: #fff;
  padding: 0.5rem 1rem;
  z-index: 100;
}
.skip:focus { left: 0.5rem; top: 0.5rem; }

/* Top bar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem var(--pad);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.topbar-brand { font-weight: 600; color: var(--ink); }
.topbar-right { display: flex; align-items: center; gap: 1.25rem; }
.lang-switch { display: flex; gap: 0.35rem; }
.lang-switch button {
  background: none;
  border: none;
  font: inherit;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  cursor: pointer;
  padding: 0.15rem 0.35rem;
}
.lang-switch button[aria-pressed="true"] {
  color: var(--ink);
  font-weight: 700;
  border-bottom: 2px solid var(--carmine);
}

/* Header / nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(251, 247, 241, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-row {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.85rem var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem 1.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.88rem;
}
.nav-links a {
  text-decoration: none;
  color: var(--ink);
  font-weight: 500;
}
.nav-links a:hover { color: var(--carmine); }
.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line-strong);
  padding: 0.4rem 0.7rem;
  font: inherit;
  font-size: 0.8rem;
  cursor: pointer;
  color: var(--ink);
}

@media (max-width: 860px) {
  .menu-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    left: 0; right: 0;
    top: 100%;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    padding: 1rem var(--pad);
    gap: 0.75rem;
  }
  .nav-links.open { display: flex; }
}

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  min-height: min(78vh, 640px);
  border-bottom: 1px solid var(--line);
}
.hero-copy {
  padding: clamp(2.5rem, 6vw, 4.5rem) var(--pad);
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 36rem;
}
.hero-kicker {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 1.25rem;
}
.hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.35rem, 5.2vw, 3.55rem);
  line-height: 1.12;
  margin: 0 0 1.25rem;
  color: var(--deep-ink);
  letter-spacing: -0.02em;
}
.hero-lead {
  font-size: 1.05rem;
  color: var(--muted);
  margin: 0 0 2rem;
  max-width: 32rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  align-items: center;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1.2rem;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}
.btn-primary {
  background: var(--carmine);
  color: #fff;
}
.btn-primary:hover { background: #951c26; color: #fff; }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line-strong);
}
.btn-ghost:hover { border-color: var(--ink); color: var(--ink); }

.hero-visual {
  background: linear-gradient(160deg, #f6efe4 0%, var(--limestone) 100%);
  border-left: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2.5rem var(--pad);
  text-align: center;
  position: relative;
}
.hero-logo-mark {
  width: min(280px, 70%);
  margin-bottom: 1.25rem;
}
.hero-wordmark {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  color: var(--deep-ink);
  letter-spacing: 0.04em;
  margin: 0 0 0.35rem;
  font-weight: 400;
}
.hero-wordmark span { color: var(--carmine); font-size: 0.55em; vertical-align: super; }
.hero-sub {
  font-size: 0.78rem;
  color: var(--muted);
  max-width: 16rem;
  margin: 0 auto 0.5rem;
  line-height: 1.45;
}
.hero-city {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
  margin-top: 1rem;
}
.hero-tag {
  position: absolute;
  bottom: 1.25rem;
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; }
  .hero-visual {
    border-left: none;
    border-top: 1px solid var(--line);
    min-height: 280px;
  }
}

/* Section primitives */
.section {
  padding: clamp(3rem, 7vw, 5rem) var(--pad);
}
.section-inner {
  max-width: var(--max);
  margin: 0 auto;
}
.section-label {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--carmine);
  margin: 0 0 0.75rem;
  font-weight: 600;
}
.section h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.85rem, 3.8vw, 2.65rem);
  line-height: 1.18;
  margin: 0 0 1rem;
  color: var(--deep-ink);
  letter-spacing: -0.015em;
}
.section-lead {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 40rem;
  margin: 0 0 2rem;
}

.bg-limestone { background: var(--limestone); }
.bg-paper { background: var(--paper); }
.bg-deep { background: var(--deep-ink); color: #e8e4dc; }
.bg-deep h2, .bg-deep .section-label { color: #f5efe6; }
.bg-deep .section-label { color: #e8a0a6; }
.bg-deep p, .bg-deep li { color: #c8c4bc; }
.bg-deep .muted { color: #9aa3b0; }

/* Signal strip */
.signal {
  border-bottom: 1px solid var(--line);
  padding: clamp(2.5rem, 5vw, 3.5rem) var(--pad);
}
.signal-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2rem 3rem;
  align-items: start;
}
.signal-date {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}
.signal-quote {
  font-family: var(--serif);
  font-size: clamp(1.35rem, 2.6vw, 1.85rem);
  line-height: 1.35;
  color: var(--deep-ink);
  margin: 0 0 1.75rem;
  max-width: 36rem;
}
.signal-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  border-top: 1px solid var(--line);
  padding-top: 1.5rem;
}
.signal-item h3 {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 0.4rem;
  color: var(--ink);
}
.signal-item p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}
@media (max-width: 720px) {
  .signal-inner { grid-template-columns: 1fr; }
  .signal-grid { grid-template-columns: 1fr; }
}

/* Split feature */
.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 0;
  align-items: stretch;
  border-bottom: 1px solid var(--line);
}
.split.reverse { direction: rtl; }
.split.reverse > * { direction: ltr; }
.split-visual {
  background: var(--limestone);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  min-height: 360px;
}
.split-visual img {
  max-height: 560px;
  width: auto;
  max-width: 92%;
  object-fit: contain;
  mix-blend-mode: multiply;
}
.split-body {
  padding: clamp(2.5rem, 5vw, 4rem) var(--pad);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.split-body .section-label { margin-bottom: 0.6rem; }
.split-body h2 { margin-bottom: 1rem; }
.split-body .section-lead { margin-bottom: 1.75rem; }

.field-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.field-list li {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 0.75rem;
  align-items: start;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--line);
}
.field-list li:last-child { border-bottom: none; padding-bottom: 0; }
.field-num {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--carmine);
  letter-spacing: 0.04em;
}
.field-list strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 0.15rem;
}
.field-list span {
  font-size: 0.88rem;
  color: var(--muted);
}

@media (max-width: 860px) {
  .split, .split.reverse { grid-template-columns: 1fr; direction: ltr; }
  .split-visual { min-height: 280px; }
}

/* Dossier card */
.dossier {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2.5rem;
  align-items: center;
  max-width: var(--max);
  margin: 0 auto;
}
.dossier-cover {
  width: 160px;
  height: 220px;
  background: var(--deep-ink);
  color: #f5efe6;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.25rem;
  box-shadow: 0 12px 32px rgba(7, 27, 54, 0.18);
}
.dossier-cover .d-brand {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.dossier-cover .d-num {
  font-family: var(--serif);
  font-size: 3rem;
  line-height: 1;
}
.dossier-cover .d-status {
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.7;
}
.dossier-body .section-label { margin-bottom: 0.5rem; }
.dossier-status {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--carmine);
  border: 1px solid rgba(179, 34, 46, 0.35);
  padding: 0.25rem 0.55rem;
  margin-top: 1rem;
}
@media (max-width: 640px) {
  .dossier { grid-template-columns: 1fr; }
  .dossier-cover { width: 120px; height: 170px; }
}

/* Publications grid */
.pub-filters {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
}
.pub-filters button {
  background: transparent;
  border: 1px solid var(--line-strong);
  padding: 0.35rem 0.85rem;
  font: inherit;
  font-size: 0.8rem;
  cursor: pointer;
  color: var(--muted);
}
.pub-filters button[aria-pressed="true"] {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}
.pub-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.pub-card {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 0;
  display: flex;
  flex-direction: column;
}
.pub-card-cover {
  height: 140px;
  background: var(--limestone);
  display: flex;
  align-items: flex-end;
  padding: 1rem;
  position: relative;
}
.pub-card-cover.dark { background: var(--deep-ink); color: #f5efe6; }
.pub-card-cover .pc-brand {
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  position: absolute;
  top: 0.85rem;
  left: 1rem;
  opacity: 0.7;
}
.pub-card-cover .pc-num {
  font-family: var(--serif);
  font-size: 2.2rem;
  line-height: 1;
}
.pub-card-body { padding: 1.15rem 1.15rem 1.35rem; flex: 1; display: flex; flex-direction: column; }
.pub-card-type {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--carmine);
  margin: 0 0 0.4rem;
}
.pub-card h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
  line-height: 1.3;
}
.pub-card p {
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0 0 1rem;
  flex: 1;
}
.pub-card .status-tag {
  font-size: 0.72rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
  padding-top: 0.65rem;
  margin-top: auto;
}
@media (max-width: 800px) {
  .pub-grid { grid-template-columns: 1fr; }
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1.5rem;
}
.step {
  border: 1px solid var(--line);
  padding: 1.15rem;
  background: rgba(251, 247, 241, 0.6);
}
.bg-deep .step {
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.12);
}
.step-num {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--carmine);
  letter-spacing: 0.08em;
  margin-bottom: 0.4rem;
}
.step h3 {
  font-size: 0.95rem;
  margin: 0 0 0.35rem;
}
.step p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--muted);
}
.bg-deep .step p { color: #9aa3b0; }
@media (max-width: 700px) {
  .steps { grid-template-columns: 1fr; }
}

.lifecycle {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
}
.lifecycle li {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 0.75rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  font-size: 0.95rem;
}
.lifecycle li:last-child { border-bottom: none; }
.lifecycle-num { color: #e8a0a6; font-weight: 700; font-size: 0.8rem; }

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}
.badge {
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  padding: 0.35rem 0.7rem;
  border: 1px solid rgba(255,255,255,0.25);
  color: #e8e4dc;
}

/* Concordia */
.concordia {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: center;
  max-width: var(--max);
  margin: 0 auto;
}
.concept-card {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 1.5rem;
}
.concept-card .year {
  font-family: var(--serif);
  font-size: 2.5rem;
  color: var(--deep-ink);
  line-height: 1;
  margin: 0 0 0.75rem;
}
.concept-card h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.25rem;
  margin: 0 0 0.5rem;
}
.concept-card p {
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0 0 1rem;
}
.concept-card .status-tag {
  font-size: 0.72rem;
  color: var(--carmine);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
@media (max-width: 720px) {
  .concordia { grid-template-columns: 1fr; }
}

/* Authority */
.authority {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  max-width: var(--max);
  margin: 0 auto;
  align-items: start;
}
.authority h2 { margin-bottom: 0.75rem; }
.authority p { color: var(--muted); margin: 0 0 0.75rem; }
.authority a { color: var(--ink); }
@media (max-width: 700px) {
  .authority { grid-template-columns: 1fr; }
}

/* Footer */
.site-footer {
  background: var(--deep-ink);
  color: #c8c4bc;
  padding: 3rem var(--pad) 2rem;
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 2rem;
}
.footer-brand {
  font-family: var(--serif);
  font-size: 1.35rem;
  color: #f5efe6;
  margin: 0 0 0.35rem;
}
.footer-brand span { color: #e8a0a6; font-size: 0.55em; vertical-align: super; }
.footer-tag {
  font-size: 0.85rem;
  margin: 0 0 1rem;
  max-width: 16rem;
}
.footer-label {
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #9aa3b0;
  margin: 0 0 0.5rem;
}
.footer-inner a { color: #e8e4dc; text-decoration: none; }
.footer-inner a:hover { color: #fff; text-decoration: underline; }
.footer-bottom {
  max-width: var(--max);
  margin: 2.5rem auto 0;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.78rem;
  color: #9aa3b0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  justify-content: space-between;
}
@media (max-width: 720px) {
  .footer-inner { grid-template-columns: 1fr; }
}

.prototype-note {
  background: #f8f0e6;
  border-bottom: 1px solid var(--line);
  padding: 0.55rem var(--pad);
  font-size: 0.78rem;
  color: var(--muted);
  text-align: center;
}
.prototype-note strong { color: var(--ink); }

.muted { color: var(--muted); }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* WordPress / Polylang helpers */
.lang-switch a.lang-btn {
  background: none;
  border: none;
  font: inherit;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  cursor: pointer;
  padding: 0.15rem 0.35rem;
  text-decoration: none;
}
.lang-switch a.lang-btn[aria-pressed="true"],
.lang-switch a.lang-btn[aria-current="true"] {
  color: var(--ink);
  font-weight: 700;
  border-bottom: 2px solid var(--carmine);
}
.entry-content { max-width: 42rem; }
.entry-content p { margin: 0 0 1rem; }
.nav-links { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.25rem 1.5rem; }
.nav-links a { text-decoration: none; font-size: 0.85rem; letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink); }
.nav-links a:hover { color: var(--carmine); }