/* ===========================================
   AUTH.CSS — mobile-first (dark)
   =========================================== */

:root{
  --green:#00A676; --blue:#0057D9; --orange:#FFA726;
  --bg:#0c0f14; --bg2:#0b0f17; --surface:#111621;
  --text:#e7e9ee; --muted:#9aa3b2;
  --border:rgba(255,255,255,.08);
  --shadow:0 10px 28px rgba(0,0,0,.4);
  --radius:14px;
  --space:clamp(12px, 3.4vw, 22px);
  --focus:0 0 0 3px rgba(0,167,118,.35), 0 0 0 1px var(--green);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{height:100%}
body{
  margin:0; overflow-x:hidden; /* empêche le scroll horizontal mobile */
  font-family:Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background:
    radial-gradient(900px 480px at 80% -10%, rgba(0,167,118,.18) 0%, transparent 60%),
    radial-gradient(700px 420px at 10% 10%, rgba(0,87,217,.18) 0%, transparent 60%),
    var(--bg);
  color:var(--text);
}

/* ===== Layout principal (mobile-first) ===== */
.auth{
  /* 100svh corrige la barre d’URL mobile ; fallback 100vh/iOS */
  min-height: 100vh;
  display:grid; place-items:center;
  padding: clamp(14px,6vw,32px);
}
@supports (height: 100svh){
  .auth{ min-height: 100svh; }
}

.card{
  width:min(600px, 94vw);         /* plus étroit sur mobile */
  margin-inline:auto;
  background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  border:1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(14px, 4.2vw, 22px);
  overflow:visible;               /* évite toute scrollbar interne */
}

/* ===== Tabs ===== */
.tabs{
  position:relative; display:flex; gap:10px;
  border-bottom:1px solid var(--border);
  margin-bottom:14px;
  overflow:hidden;                /* pas de défilement latéral */
}
.tab{
  appearance:none; border:0; background:transparent; color:var(--text);
  font-weight:800; padding:10px 8px; cursor:pointer; opacity:.85;
}
.tab.is-active{opacity:1}
.tab:focus-visible{outline:none; box-shadow:var(--focus); border-radius:10px}
.tab-underline{
  position:absolute; bottom:0; left:0; height:3px; width:120px;
  background:linear-gradient(90deg, var(--blue), var(--green));
  border-radius:999px;
  transform:translateX(0);
  transition:transform .25s ease, width .25s ease;
}

/* ===== Panels ===== */
.panel{display:none}
.panel.is-visible{
  display:grid;
  gap:12px;                       /* compact sur mobile */
}

/* ===== Grilles ===== */
.grid{display:grid; gap:12px; grid-template-columns:1fr}
@media (min-width: 760px){
  .grid{grid-template-columns:1fr 1fr}
}

/* ===== Champs ===== */
.field label{
  display:block; font-weight:700; margin-bottom:6px;
}
input{
  width:100%;
  background:rgba(8,12,18,.92);
  color:var(--text);
  border:1px solid var(--border);
  border-radius:10px;
  padding:10px 14px;              /* moins haut = plus fin */
  outline:none;
}
input::placeholder{color:#8d96a6}
input:focus{box-shadow:var(--focus)}

/* Password + œil */
.pw{position:relative}
.pw-toggle{
  position:absolute; right:8px; top:50%; transform:translateY(-50%);
  width:30px; height:30px; border-radius:8px;
  display:grid; place-items:center;
  border:1px solid transparent; background:transparent; color:var(--muted);
  cursor:pointer;
}
.pw-toggle:hover{ color:#fff; background:rgba(255,255,255,.06); border-color:var(--border) }
.pw-toggle .icon{ display:block }
.pw-toggle .eye-off{ display:none }
.pw-toggle[data-visible="true"] .eye{ display:none }
.pw-toggle[data-visible="true"] .eye-off{ display:block }

/* ===== Ligne meta (souvenir / oublié) ===== */
.row{ display:flex; align-items:center; justify-content:space-between; gap:10px }
.row--meta{ margin:6px 0 2px }
@media (max-width: 420px){
  .row{ flex-direction:column; align-items:flex-start; gap:8px }
}

/* Checkbox custom */
.chk{ display:inline-flex; align-items:center; gap:10px; cursor:pointer; user-select:none }
.chk input{ position:absolute; opacity:0; pointer-events:none }
.chk__box{
  width:18px; height:18px; border-radius:6px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.03);
  display:inline-block; position:relative; transition:all .2s ease;
}
.chk input:checked + .chk__box{
  background:linear-gradient(135deg, var(--blue), var(--green));
  border-color:transparent;
}
.chk input:checked + .chk__box::after{
  content:""; position:absolute; inset:3px 5px 5px 4px;
  border:2px solid #fff; border-top:0; border-left:0; transform:rotate(45deg);
}
.chk__label{ color:var(--text); opacity:.9 }

/* Lien “Mot de passe oublié ?” */
.link-ghost{
  color:var(--muted); text-decoration:none;
  border-bottom:1px dashed rgba(255,255,255,.25);
  padding-bottom:2px;
  transition:color .2s, border-color .2s;
}
.link-ghost:hover{ color:#fff; border-color:rgba(255,255,255,.45) }

/* ===== Boutons ===== */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:12px 16px; border-radius:12px; text-decoration:none; font-weight:800;
  border:1px solid var(--border);
}
.btn--primary{
  background:linear-gradient(135deg, var(--blue), var(--green));
  color:#fff; border-color:transparent; box-shadow:var(--shadow);
}
.btn--primary:hover{ filter:brightness(1.05) }
.btn--lg{ width:100% }            /* plein largeur = lisible sur mobile */

/* Aides */
.tiny{font-size:.9rem}
.muted{color:var(--muted)}
.hint{margin-top:8px}

/* Feedback visuel (front) */
.form-ok{ border-color:rgba(16,185,129,.6) }
.form-err{ border-color:rgba(239,68,68,.6) }