:root { --fond: #262624; --panneau: #2B2A27; --ligne: #393834; --texte: #F5F4EE; --doux: #B5B2A8; --pale: #9B988E; --bleu: #5B8DEF; --rouge-doux: #F2A493;
  --police: ui-sans-serif, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif; }
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--fond); color: var(--texte); font: 400 14px/1.5 var(--police); -webkit-font-smoothing: antialiased; }
::selection { background: rgba(91, 141, 239, .35); }
main { min-height: 100vh; display: grid; place-items: center; padding: 24px 16px; }
form { width: min(380px, 100%); background: var(--panneau); border: 1px solid var(--ligne); border-radius: 16px; padding: 26px 24px 22px; display: grid; gap: 8px; box-shadow: 0 18px 44px rgba(0, 0, 0, .35); }
.marque { margin: 0; display: flex; align-items: center; gap: 8px; color: var(--doux); font-weight: 600; }
h1 { margin: 2px 0 12px; font-size: 22px; letter-spacing: -0.01em; }
label { font-size: 13px; font-weight: 600; margin-top: 4px; }
input { width: 100%; background: #1F1E1D; border: 1px solid #4A4943; border-radius: 9px; padding: 11px 12px; color: var(--texte); font: inherit; }
input:focus { outline: 2px solid var(--bleu); outline-offset: 0; border-color: transparent; }
button { margin-top: 10px; appearance: none; border: 0; border-radius: 10px; padding: 12px; background: var(--texte); color: #1F1E1D; font: 600 15px var(--police); cursor: pointer; transition: background-color .15s ease-out; }
button:hover { background: #fff; }
button[disabled] { opacity: .55; cursor: wait; }
.erreur { margin: 4px 0 0; min-height: 1.5em; color: var(--rouge-doux); font-weight: 600; font-size: 13px; }
.aide { margin: 6px 0 0; color: var(--pale); font-size: 12.5px; text-align: center; }