/* ============================================================
   yéni.ch — système de design
   Inspiré de clou.ch : grotesque, blanc, beaucoup de blanc,
   coins arrondis, accent violet, petites flèches au survol.
   Site clair uniquement (comme clou.ch).
   ============================================================ */

:root{
  /* base épurée (clou.ch), accents repris du blason Jenny : azur & or */
  --ink:        #12161c;   /* texte quasi noir, nuance bleutée */
  --ink-deep:   #000000;
  --ink-soft:   #7c828c;   /* texte gris */
  --paper:      #ffffff;
  --paper-2:    #eef2f7;   /* azur très pâle (fonds) */
  --line:       #e2e6ec;   /* filets / bordures */
  --accent:     #47749c;   /* azur — steel bleuté, patiné */
  --accent-ink: #2b4d68;   /* azur profond (texte/liens/boutons) */
  --accent-deep:#6a8aa6;   /* azur adouci */
  --azur:       #3d6a91;   /* azur des aplats */
  --or:         #c39a45;   /* or, légèrement chaud */
  --or-deep:    #a17d33;
  --argent:     #b9c5cf;   /* argent — gris bleuté clair */
  --argent-deep:#94a3af;
  --gueules:    #c8382b;   /* gueules — l'étoile du blason */

  /* grain façon enluminure ancienne */
  --grain: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");

  --radius-s: .5rem;
  --radius-m: .75rem;
  --radius-l: 1rem;

  --font: "Inter", "Helvetica Neue", Arial, sans-serif;
  /* serif à double lecture (ancien / moderne) — noms, titres, logo */
  --display: "Spectral", "Iowan Old Style", Georgia, serif;

  --wrap: 1180px;
  --gap: clamp(1rem, 3vw, 2rem);
}

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

html{ -webkit-text-size-adjust: 100%; }

body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a{ color: inherit; text-decoration: none; }
a:focus-visible,
button:focus-visible,
input:focus-visible{
  outline: 2px solid var(--accent-ink);
  outline-offset: 3px;
}

h1,h2,h3,h4{
  font-family: var(--display);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 0 0 .5em;
}
.logo{ font-family: var(--display); }
h1{ font-size: clamp(2.4rem, 6vw, 4.5rem); }
h2{ font-size: clamp(1.6rem, 3.5vw, 2.6rem); }
h3{ font-size: clamp(1.15rem, 2vw, 1.4rem); }

p{ margin: 0 0 1em; }
strong{ font-weight: 600; }

.wrap{
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gap);
}

.muted{ color: var(--ink-soft); }
.small{ font-size: .85rem; }

/* ---------- en-tête ---------- */
.site-header{
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
  padding: 1rem var(--gap);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.logo{
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  text-transform: lowercase;
}
.logo .dot{ color: var(--gueules); }

.site-nav{ display: flex; align-items: center; gap: clamp(.75rem, 2.5vw, 1.75rem); }
.site-nav a{
  font-size: .95rem;
  color: var(--ink-soft);
  transition: color .15s ease;
}
.site-nav a:hover,
.site-nav a[aria-current="page"]{ color: var(--ink); }

.pill{
  display: inline-flex; align-items: center; gap: .4em;
  padding: .5em 1em;
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  font-size: .9rem;
  font-weight: 500;
  transition: background .15s ease, transform .15s ease;
}
.pill:hover{ background: var(--accent-ink); transform: translateY(-1px); }
.pill.ghost{
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}
.pill.ghost:hover{ border-color: var(--ink); background: transparent; color: var(--ink); }

/* petite flèche façon clou.ch */
.arrow::after{
  content: "→";
  display: inline-block;
  margin-left: .35em;
  transition: transform .18s ease;
}
a:hover > .arrow::after,
.arrow:hover::after{ transform: translateX(.2em); }

/* ---------- héros ---------- */
.hero{
  padding: clamp(3rem, 12vh, 8rem) 0 clamp(2.5rem, 8vh, 5rem);
}
.hero h1{ max-width: 14ch; }
.hero .lead{
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
  color: var(--ink-soft);
  max-width: 42ch;
  margin-bottom: 2rem;
}
.hero-actions{ display: flex; flex-wrap: wrap; gap: .75rem; }

/* ---------- grille de cartes ---------- */
.card-grid{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr));
  gap: var(--gap);
  padding-block: clamp(2rem, 6vh, 4rem);
}
.card{
  display: flex; flex-direction: column;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background: var(--paper);
  transition: border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}
.card:hover{
  border-color: var(--ink);
  transform: translateY(-3px);
  box-shadow: 0 18px 40px -24px rgba(16,17,20,.35);
}
.card h3{ margin-bottom: .25rem; }
.card p{ color: var(--ink-soft); font-size: .95rem; flex: 1; }
.card .card-tag{
  align-self: flex-start;
  margin-bottom: 1rem;
  padding: .2em .7em;
  border-radius: 999px;
  background: var(--accent);
  color: var(--ink);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .02em;
}
.card[aria-disabled="true"]{ opacity: .55; pointer-events: none; }

/* ---------- sections ---------- */
.section{ padding-block: clamp(3rem, 9vh, 6rem); }
.section.tint{ background: var(--paper-2); }
.section-head{ max-width: 60ch; margin-bottom: 2.5rem; }
.section-head p{ color: var(--ink-soft); font-size: 1.05rem; }

.kicker{
  display: inline-block;
  margin-bottom: 1rem;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent-ink);
}

/* ---------- pied ---------- */
.site-footer{
  border-top: 1px solid var(--line);
  padding: 2.5rem var(--gap);
  display: flex; flex-wrap: wrap; gap: 1rem 2rem;
  justify-content: space-between;
  color: var(--ink-soft);
  font-size: .9rem;
}
.site-footer a:hover{ color: var(--ink); }

/* ============================================================
   Portail privé — écran de déverrouillage (page d'accueil)
   Rien d'autre n'est visible tant qu'on n'est pas entré.
   ============================================================ */
.gate{
  min-height: 100vh;
  min-height: 100dvh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center;
  padding: 3rem var(--gap);
}
/* fond : parchemin patiné + lavis azur & or du blason Jenny */
body.is-locked,
body.is-portal{
  background:
    radial-gradient(120% 90% at 12% -10%, color-mix(in srgb, var(--azur) 16%, transparent), transparent 55%),
    radial-gradient(110% 85% at 100% 110%, color-mix(in srgb, var(--or) 16%, transparent), transparent 52%),
    #f5f1e8;
}
body.is-locked::after,
body.is-portal::after,
.tree-scroll::after{
  content: ""; position: absolute; inset: 0; z-index: 0;
  background-image: var(--grain);
  background-size: 180px 180px;
  opacity: .05;
  mix-blend-mode: multiply;
  pointer-events: none;
}
body.is-locked::after, body.is-portal::after{ position: fixed; }
body.is-portal{ overflow: auto; }
body.is-locked > *, body.is-portal > *{ position: relative; z-index: 1; }

/* ---------- portail : un grand bouton « Arbre généalogique » ---------- */
.portal-home{
  min-height: 100vh; min-height: 100dvh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 1.6rem;
  text-align: center;
  padding: 3rem var(--gap);
}
.portal-mark{ display: flex; align-items: center; gap: .55rem; }
.portal-mark .logo{ font-size: 1.4rem; }
.portal-note{ color: var(--ink-soft); font-size: .9rem; letter-spacing: .02em; }
.tree-cta{
  position: relative;
  display: inline-block;
  font-family: var(--display);
  padding: 1.15rem 2.7rem;
  border-radius: var(--radius-l);
  border: 1px solid color-mix(in srgb, var(--or) 60%, transparent);
  background:
    linear-gradient(160deg, color-mix(in srgb, var(--accent) 92%, #fff) 0%, var(--azur) 45%, var(--accent-ink) 100%);
  color: #fff;
  font-size: clamp(1.15rem, 2.4vw, 1.55rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  text-shadow: 0 1px 2px rgba(0,0,0,.25);
  box-shadow:
    0 1px 0 rgba(255,255,255,.25) inset,
    0 18px 44px -16px color-mix(in srgb, var(--accent-ink) 75%, transparent);
  transition: transform .18s ease, box-shadow .18s ease;
}
.tree-cta::after{
  content: ""; position: absolute; inset: 0;
  border-radius: inherit;
  background-image: var(--grain);
  background-size: 150px 150px;
  opacity: .12;
  mix-blend-mode: overlay;
  pointer-events: none;
}
.tree-cta:hover{
  transform: translateY(-2px);
  box-shadow:
    0 1px 0 rgba(255,255,255,.3) inset,
    0 24px 54px -16px color-mix(in srgb, var(--accent-ink) 80%, transparent);
}
.gate-card{
  width: 100%; max-width: 340px;
  padding: 2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background: var(--paper);
  box-shadow: 0 30px 60px -40px rgba(16,17,20,.3);
}
.gate-mark{
  display: flex; flex-direction: column; align-items: center; gap: .5rem;
  margin-bottom: 1.75rem;
}
.gate-mark .logo{ font-size: 1.5rem; }
.gate-card h1{ font-size: 1.6rem; margin-bottom: .25rem; }
.gate-card p{ color: var(--ink-soft); font-size: .95rem; }
.field{ display: flex; flex-direction: column; gap: .4rem; text-align: left; margin-bottom: 1rem; }
.field label{ font-size: .82rem; font-weight: 600; color: var(--ink-soft); }
input[type="password"],
input[type="text"],
input[type="search"]{
  width: 100%;
  padding: .7em .85em;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  font: inherit;
  color: var(--ink);
  background: var(--paper-2);
}
input:focus{ background: var(--paper); }
.btn{
  width: 100%;
  padding: .75em 1em;
  border: none;
  border-radius: var(--radius-s);
  background: var(--accent-ink);
  color: var(--paper);
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: background .15s ease;
}
.btn:hover{ background: color-mix(in srgb, var(--accent-ink) 82%, #000); }
.btn[disabled]{ opacity: .5; cursor: progress; }
.btn.secondary{ background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn.secondary:hover{ background: var(--paper-2); }
.gate-error{ color: #c02a37; font-size: .88rem; min-height: 1.2em; margin-top: .25rem; }

/* barre du portail (une fois déverrouillé) */
.portal-bar{
  display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1.25rem;
  padding: .75rem var(--gap);
  border-bottom: 1px solid var(--line);
  background: var(--paper-2);
  font-size: .9rem;
}
.portal-bar nav{ display: flex; gap: 1rem; }
.portal-bar nav a[aria-current="page"]{ color: var(--ink); font-weight: 600; }
.portal-bar .spacer{ flex: 1; }
.lock-btn{
  border: 1px solid var(--line);
  background: var(--paper);
  border-radius: 999px;
  padding: .3em .9em;
  font: inherit; font-size: .85rem;
  cursor: pointer;
}
.lock-btn:hover{ border-color: var(--ink); }

/* ============================================================
   Arbre généalogique
   ============================================================ */
/* la page arbre occupe tout l'écran : seul .tree-scroll défile */
body.tree-page{
  height: 100vh; height: 100dvh;
  display: flex; flex-direction: column;
  overflow: hidden;
  overscroll-behavior: none;   /* pas de swipe précédent/suivant du navigateur */
}
body.tree-page .portal-bar,
body.tree-page .tree-toolbar{ flex: none; }
body.tree-page .tree-scroll{ flex: 1; min-height: 0; }

.tree-toolbar{
  display: flex; flex-wrap: wrap; gap: .75rem; align-items: center;
  padding: .8rem var(--gap);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper-2) 60%, var(--paper));
}
.tree-toolbar .logo{ font-size: 1.15rem; margin-right: .5rem; }
.tree-toolbar select,
.tree-toolbar input{
  padding: .5em .7em;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  font: inherit;
  background: var(--paper-2);
}
.tree-toolbar input[type="search"]{ flex: 1; width: auto; min-width: 130px; max-width: 260px; }
.tree-toolbar #wideBtn[aria-pressed="true"]{ background: var(--ink); color: var(--paper); border-color: var(--ink); }
.tree-toolbar #count{ margin-left: auto; }

/* ---------- canevas pan / zoom (comme une carte) ---------- */
.tree-scroll{
  position: relative;
  overflow: hidden;
  cursor: grab;
  touch-action: none;
  overscroll-behavior: none;
  background:
    radial-gradient(130% 100% at 8% -8%, color-mix(in srgb, var(--azur) 13%, transparent), transparent 55%),
    radial-gradient(120% 95% at 100% 108%, color-mix(in srgb, var(--or) 13%, transparent), transparent 52%),
    #f5f1e8;
}
.tree-scroll.grabbing{ cursor: grabbing; }

.tree, .tree ul{
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
}
.tree{
  position: absolute; left: 0; top: 0;
  z-index: 1;
  width: max-content;
  transform-origin: 0 0;
  will-change: transform;
  transition: transform .55s cubic-bezier(.22,.61,.36,1);
}
.tree.no-anim{ transition: none; }
.tree ul{ padding-top: 26px; }
.tree li{
  padding: 26px 18px 0;
  display: flex; flex-direction: column; align-items: center;
}
/* couche des connecteurs, sous les bulles */
svg.tree-lines{
  position: absolute; left: 0; top: 0;
  pointer-events: none;
  overflow: visible;
  z-index: 0;
}
svg.tree-lines path{
  stroke: var(--argent);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
svg.tree-lines .ln-link{ stroke-width: 2; stroke: var(--argent-deep); }
/* seul le trait ENTRE les conjoint·es change quand l'union est rompue */
svg.tree-lines .ln-link.divorce,
svg.tree-lines .ln-link.separe{ stroke-dasharray: 2 6; stroke: var(--argent-deep); }
/* d'où vient la personne au centre : sa lignée ascendante en gueules */
svg.tree-lines .ln-descent.ln-hot,
svg.tree-lines .ln-link.ln-hot,
svg.tree-lines .ln-link.ln-hot.divorce,
svg.tree-lines .ln-link.ln-hot.separe{ stroke: var(--gueules); stroke-width: 2.4; }

/* conjoint·es côte à côte, le trait entre les deux est tracé en SVG */
.couple{ display: flex; align-items: center; gap: 28px; position: relative; z-index: 1; }

.node{
  position: relative;
  z-index: 1;
  min-width: 146px; max-width: 188px;
  padding: .42rem .7rem .48rem;
  border: 1px solid rgba(43,77,104,.15);
  border-radius: 4px;
  background: var(--paper);
  text-align: center;
  cursor: pointer;
  opacity: .28;
  box-shadow: 0 1px 3px rgba(20,32,48,.09), 0 0 0 .5px rgba(20,32,48,.03);
  transition: opacity .3s ease, box-shadow .18s ease, border-color .18s ease;
}
/* focus + contexte : la famille proche du centre en pleine opacité */
.node.is-kin{ opacity: 1; }
.node.is-focus{
  opacity: 1;
  z-index: 5;                 /* au-dessus du/de la conjoint·e, l'anneau reste entier */
  border-color: var(--accent-ink);
  box-shadow: 0 0 0 1px var(--accent-ink), 0 7px 18px -9px rgba(20,32,48,.35);
}
.node:hover,
.node:focus-visible{ opacity: 1; z-index: 4; border-color: var(--ink-soft); box-shadow: 0 6px 16px -8px rgba(20,32,48,.3); }
.node .n-name{ display: block; font-family: var(--display); font-weight: 500; font-size: .94rem; letter-spacing: 0; }
.node .n-dates{ display: block; font-size: .74rem; color: var(--ink-soft); margin-top: .1rem; font-variant-numeric: oldstyle-nums; }

/* ---------- fiche : petite carte en bas de l'écran ---------- */
.person-card{
  position: fixed; left: 50%; bottom: 0; z-index: 40;
  width: min(560px, calc(100vw - 2rem));
  transform: translate(-50%, 0);
  background: var(--paper);
  border: 1px solid var(--line);
  border-bottom: 0;
  border-radius: var(--radius-l) var(--radius-l) 0 0;
  box-shadow: 0 -24px 60px -30px rgba(16,17,20,.4);
  padding: 1.1rem 1.3rem 1.3rem;
  max-height: 46vh;
  overflow-y: auto;
  animation: card-up .28s cubic-bezier(.22,.61,.36,1);
}
@keyframes card-up{ from{ transform: translate(-50%, 100%); } to{ transform: translate(-50%, 0); } }
.person-card .close{
  position: absolute; top: .7rem; right: .7rem;
  border: 1px solid var(--line); background: var(--paper);
  width: 30px; height: 30px; border-radius: 50%;
  cursor: pointer; font-size: 1rem; line-height: 1;
}
.person-card h2{ font-size: 1.25rem; margin: 0 2rem .1rem 0; }
.person-card .card-sub{ color: var(--ink-soft); font-size: .85rem; margin-bottom: .7rem; }
.person-card .card-facts{ font-size: .88rem; line-height: 1.5; }
.person-card .card-facts b{ color: var(--ink-soft); font-weight: 500; }
.person-card .card-note{ font-size: .85rem; color: var(--ink-soft); margin-top: .5rem; }
.person-card .rel-btns{ display: flex; flex-wrap: wrap; gap: .5rem; margin-top: .9rem; }
.person-card .rel-btns .btn{ width: auto; padding: .5em 1em; font-size: .85rem; }
.person-card a[data-goto]{ color: var(--accent-ink); border-bottom: 1px solid color-mix(in srgb, var(--accent-ink) 30%, transparent); }

/* ============================================================
   Cartes de mémorisation (flashcards)
   ============================================================ */
.deck-list{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr));
  gap: var(--gap);
  padding: 2rem var(--gap) 4rem;
}
.deck{
  padding: 1.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  cursor: pointer;
  transition: border-color .15s ease, transform .15s ease;
}
.deck:hover{ border-color: var(--ink); transform: translateY(-3px); }
.deck h3{ margin-bottom: .2rem; }
.deck .deck-meta{ font-size: .82rem; color: var(--ink-soft); }
.deck .bar{ height: 6px; border-radius: 999px; background: var(--line); margin-top: .9rem; overflow: hidden; }
.deck .bar > i{ display: block; height: 100%; background: var(--accent-ink); }

.study{
  max-width: 620px;
  margin-inline: auto;
  padding: 2.5rem var(--gap) 4rem;
  text-align: center;
}
.flashcard{ margin: 1.5rem 0; }
.flashcard-inner{
  position: relative;
  min-height: 240px;
  cursor: pointer;
  transition: opacity .16s ease, transform .16s ease;
}
.flashcard.turning .flashcard-inner{ opacity: 0; transform: translateY(8px); }
.flashcard-face{
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: .75rem;
  min-height: 240px;
  padding: 2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background: var(--paper);
}
.flashcard-face.back{ display: none; background: var(--paper-2); }
.flashcard.flipped .flashcard-face.front{ display: none; }
.flashcard.flipped .flashcard-face.back{ display: flex; }
.flashcard-face .side{ font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-soft); }
.flashcard-face .content{ font-size: 1.5rem; font-weight: 500; letter-spacing: -0.02em; }
.flashcard-face .hint{ font-size: .9rem; color: var(--ink-soft); }

.grade-row{ display: flex; gap: .6rem; justify-content: center; flex-wrap: wrap; }
.grade-row .btn{ width: auto; padding: .6em 1.2em; }
.grade-row .again{ background: #c02a37; }
.grade-row .again:hover{ background: #a01f2b; }
.grade-row .hard{ background: var(--ink-soft); }
.grade-row .good{ background: var(--ink); }
.grade-row .easy{ background: var(--accent-ink); }

.study-progress{
  font-size: .85rem; color: var(--ink-soft);
  display: flex; justify-content: space-between; align-items: center;
}
.study .done{
  padding: 3rem 1rem;
}
.study .done h2{ margin-bottom: .5rem; }

/* ---------- utilitaires ---------- */
[hidden]{ display: none !important; }

@media (max-width: 640px){
  .site-header{ padding: .8rem var(--gap); }
  .site-nav{ gap: .9rem; }
  .site-nav .label-hide{ display: none; }
}