/* VSAI — langage visuel Faraday : graphite/gunmetal, bleu acier froid,
   accents bronze ; Space Grotesk (UI), Newsreader (voix de l'assistant),
   JetBrains Mono (codes, métadonnées techniques). */

:root {
  --bg: #0f1216;
  --bg-panel: #14181e;
  --bg-raised: #1a1f27;
  --line: #262c36;
  --text: #e8e6e2;
  --text-dim: #8a919c;
  --steel: #7fa3c0;
  --steel-strong: #9dbfda;
  --bronze: #b08d57;
  --bronze-soft: #8a6f45;
  --danger: #c0706a;
  --sans: "Space Grotesk", system-ui, sans-serif;
  --serif: "Newsreader", Georgia, serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: var(--sans); font-size: 15px; line-height: 1.55;
}
.hidden { display: none !important; }

/* ── wordmark ─────────────────────────────── */
.wordmark {
  font-family: var(--sans); font-weight: 600; letter-spacing: .45em;
  color: var(--bronze); font-size: 1.6rem; text-align: center;
}
.wordmark.small { font-size: 1rem; text-align: left; letter-spacing: .35em; margin-bottom: 1rem; }

/* ── login ────────────────────────────────── */
.login-wrap {
  /* 100dvh : hauteur réelle du viewport mobile (barre d'URL Android/iOS) */
  min-height: 100vh; min-height: 100dvh;
  display: flex; align-items: center; justify-content: center;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(127,163,192,.07), transparent),
    var(--bg);
}
.login-card {
  width: 380px; max-width: 92vw; padding: 2.4rem 2.2rem;
  background: var(--bg-panel); border: 1px solid var(--line); border-radius: 10px;
}
.login-sub {
  text-align: center; color: var(--text-dim); font-size: .85rem;
  margin: .4rem 0 1.8rem; font-family: var(--serif); font-style: italic;
}
label { display: block; font-size: .78rem; color: var(--text-dim); margin: .9rem 0 .3rem;
        text-transform: uppercase; letter-spacing: .08em; }
input, textarea {
  width: 100%; background: var(--bg); color: var(--text);
  border: 1px solid var(--line); border-radius: 6px; padding: .6rem .7rem;
  font-family: var(--sans); font-size: .95rem;
}
input:focus, textarea:focus { outline: none; border-color: var(--steel); }
#totp-code, #recovery-code, #enroll-token { font-family: var(--mono); letter-spacing: .15em; }

button { cursor: pointer; font-family: var(--sans); }
.btn-primary {
  width: 100%; margin-top: 1rem; padding: .65rem;
  background: linear-gradient(180deg, #23405a, #1b3248);
  color: var(--steel-strong); border: 1px solid #2e4d6b; border-radius: 6px;
  font-size: .95rem; font-weight: 500; letter-spacing: .02em;
}
.btn-primary:hover { border-color: var(--steel); color: #c2dcf0; }
.btn-secondary {
  width: 100%; margin-top: .5rem; padding: .55rem;
  background: transparent; color: var(--bronze); border: 1px solid var(--bronze-soft);
  border-radius: 6px; font-size: .9rem;
}
.btn-secondary:hover { border-color: var(--bronze); }
.btn-ghost {
  width: 100%; margin-top: .6rem; padding: .4rem; background: none; border: none;
  color: var(--text-dim); font-size: .85rem;
}
.btn-ghost:hover { color: var(--steel); }
.btn-ghost.small { font-size: .78rem; }
.slim { width: auto; margin-top: 0; padding: .45rem .9rem; }

.login-msg { min-height: 1.2em; text-align: center; font-size: .84rem; color: var(--danger); margin-top: 1rem; }
.login-msg.ok { color: var(--steel); }

.tabs { display: flex; gap: .3rem; margin-top: 1rem; }
.tab {
  flex: 1; padding: .4rem .2rem; background: none; border: none; border-bottom: 2px solid var(--line);
  color: var(--text-dim); font-size: .8rem;
}
.tab.active { color: var(--steel); border-bottom-color: var(--steel); }

/* ── app layout ───────────────────────────── */
.app { display: flex; height: 100vh; height: 100dvh; }
.sidebar {
  width: 270px; flex-shrink: 0; display: flex; flex-direction: column;
  background: var(--bg-panel); border-right: 1px solid var(--line); padding: 1.2rem 1rem;
  gap: .6rem; min-height: 0;
}
.sidebar-toggle { display: none; }
.sidebar-backdrop {
  position: fixed; inset: 0; background: rgba(5,8,12,.55); z-index: 30;
}
.conv-list { flex: 1; overflow-y: auto; margin-top: .8rem; display: flex; flex-direction: column; gap: 2px; }
.conv-item {
  text-align: left; background: none; border: none; border-radius: 6px;
  padding: .5rem .6rem; color: var(--text-dim); font-size: .87rem;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.conv-item:hover { background: var(--bg-raised); color: var(--text); }
.conv-item.active { background: var(--bg-raised); color: var(--steel-strong); }
.conv-item .gicon { color: var(--bronze); margin-right: .4rem; font-family: var(--mono); font-size: .75rem; }

.sidebar-footer { border-top: 1px solid var(--line); padding-top: .8rem; display: flex; flex-direction: column; gap: .15rem; }
.nav-link { background: none; border: none; text-align: left; color: var(--text-dim); padding: .35rem .3rem; font-size: .87rem; border-radius: 5px; }
.nav-link:hover, .nav-link.active { color: var(--steel); background: var(--bg-raised); }
.me-line { display: flex; align-items: center; gap: .5rem; padding: .5rem .3rem .1rem; font-size: .85rem; }
.role-chip {
  font-family: var(--mono); font-size: .62rem; color: var(--bronze);
  border: 1px solid var(--bronze-soft); border-radius: 4px; padding: .05rem .35rem;
  text-transform: uppercase; letter-spacing: .08em;
}

.main { flex: 1; display: flex; min-width: 0; min-height: 0; }
.panel { flex: 1; display: flex; flex-direction: column; min-width: 0; min-height: 0; }
.panel-header {
  padding: .9rem 1.6rem; border-bottom: 1px solid var(--line); font-weight: 500;
  display: flex; align-items: center; gap: .7rem; background: var(--bg-panel);
  flex-shrink: 0;
}
.group-chip {
  font-family: var(--mono); font-size: .65rem; color: var(--bronze);
  border: 1px solid var(--bronze-soft); border-radius: 4px; padding: .1rem .4rem;
  text-transform: uppercase; letter-spacing: .1em;
}

/* ── chat ─────────────────────────────────── */
.messages { flex: 1; min-height: 0; overflow-y: auto; padding: 1.6rem; display: flex; flex-direction: column; gap: 1.1rem; }
.msg { max-width: 46rem; }
.msg .who {
  font-size: .7rem; text-transform: uppercase; letter-spacing: .12em;
  color: var(--text-dim); margin-bottom: .25rem; font-family: var(--mono);
}
.msg.user { align-self: flex-end; }
.msg.user .who { text-align: right; color: var(--steel); }
.msg.user .bubble {
  background: #1d2a38; border: 1px solid #29405a; border-radius: 10px 10px 3px 10px;
  padding: .7rem .95rem;
}
.msg.assistant .bubble {
  font-family: var(--serif); font-size: 1.02rem; line-height: 1.65;
  background: var(--bg-panel); border: 1px solid var(--line);
  border-radius: 10px 10px 10px 3px; padding: .8rem 1.05rem; white-space: pre-wrap;
}
.msg.assistant .who { color: var(--bronze); }
.mem-chips { margin-top: .45rem; display: flex; flex-wrap: wrap; gap: .3rem; }
.mem-chip {
  font-family: var(--mono); font-size: .64rem; color: var(--text-dim);
  border: 1px solid var(--line); border-radius: 4px; padding: .08rem .4rem;
}
.mem-chip.shared { color: var(--bronze); border-color: var(--bronze-soft); }

.chat-form {
  display: flex; gap: .7rem; padding: 1rem 1.6rem; border-top: 1px solid var(--line);
  background: var(--bg-panel); flex-shrink: 0;
  /* encoche/barre gestuelle iOS */
  padding-bottom: calc(1rem + env(safe-area-inset-bottom, 0px));
}
.chat-form textarea { resize: none; max-height: 9rem; }

/* ── sessions / settings ──────────────────── */
#panel-sessions, #panel-settings { overflow-y: auto; }
#my-sessions, #admin-sessions, #settings-content { padding: 1.4rem 1.6rem; max-width: 52rem; }
.section-title { font-size: .85rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: .1em; margin: 1.6rem 0 .6rem; }
.card {
  background: var(--bg-panel); border: 1px solid var(--line); border-radius: 8px;
  padding: .9rem 1.1rem; margin-bottom: .6rem;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.card .meta { font-family: var(--mono); font-size: .72rem; color: var(--text-dim); }
.card .title { font-size: .92rem; }
.btn-danger {
  background: none; border: 1px solid #5a3532; color: var(--danger);
  border-radius: 5px; padding: .35rem .8rem; font-size: .8rem;
}
.btn-danger:hover { border-color: var(--danger); }
.btn-steel {
  background: none; border: 1px solid #2e4d6b; color: var(--steel);
  border-radius: 5px; padding: .35rem .8rem; font-size: .8rem;
}
.btn-steel:hover { border-color: var(--steel); }

/* ── modal ────────────────────────────────── */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(5,8,12,.72);
  display: flex; align-items: center; justify-content: center; z-index: 50;
}
.modal {
  width: 430px; max-width: 94vw; max-height: 86vh; overflow-y: auto;
  background: var(--bg-panel); border: 1px solid var(--line); border-radius: 10px;
  padding: 1.6rem 1.7rem;
}
.modal h3 { margin: 0 0 1rem; font-weight: 500; }
.check-row { display: flex; align-items: center; gap: .6rem; padding: .35rem 0; }
.check-row input { width: auto; }
.codes {
  font-family: var(--mono); font-size: .85rem; background: var(--bg);
  border: 1px solid var(--line); border-radius: 6px; padding: .8rem 1rem;
  columns: 2; margin: .8rem 0; user-select: all;
}
.qr-secret { font-family: var(--mono); font-size: .8rem; word-break: break-all; color: var(--steel); }
.note { font-size: .8rem; color: var(--text-dim); }
.note.warn { color: var(--bronze); }

/* ── mobile (≤ 820px) ─────────────────────── */
@media (max-width: 820px) {
  /* barre latérale en tiroir off-canvas */
  .sidebar {
    position: fixed; top: 0; bottom: 0; left: 0; z-index: 40;
    width: min(82vw, 300px);
    transform: translateX(-102%);
    transition: transform .18s ease-out;
    box-shadow: 6px 0 24px rgba(0,0,0,.45);
  }
  .sidebar.open { transform: none; }
  .sidebar-toggle {
    display: block; position: fixed; top: .55rem; left: .7rem; z-index: 20;
    background: var(--bg-raised); color: var(--text-dim);
    border: 1px solid var(--line); border-radius: 6px;
    padding: .3rem .6rem; font-size: 1rem; line-height: 1;
  }
  .panel-header { padding-left: 3.4rem; }

  /* iOS Safari zoome sur les champs < 16px — neutralisé partout */
  input, textarea, select { font-size: 16px; }

  .messages { padding: 1rem .8rem; }
  .msg { max-width: 100%; }
  .chat-form { padding: .7rem .8rem; padding-bottom: calc(.7rem + env(safe-area-inset-bottom, 0px)); }
  #my-sessions, #admin-sessions, #settings-content { padding: 1rem .9rem; }
  .card { flex-wrap: wrap; }
  .codes { columns: 1; }
  .login-card { padding: 1.6rem 1.2rem; }
  .modal { padding: 1.2rem 1.1rem; }
}