/* ============================================================
   AUTH — Login / Register · Liquid Glass
   ============================================================ */
:root {
  --ink: #0B1E47;
  --accent: #3D8BFF;
  --accent-2: #8FC0FF;
  --font: -apple-system, 'SF Pro Display', 'SF Pro Text', system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

.auth-body {
  font-family: var(--font);
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: #05050A;
  color: #fff;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
  position: relative;
}

.auth-aurora {
  position: fixed;
  inset: -20%;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 60% 50% at 20% 15%, rgba(61,139,255,0.30), transparent 60%),
    radial-gradient(ellipse 55% 55% at 85% 85%, rgba(22,60,126,0.34), transparent 60%),
    radial-gradient(ellipse 50% 45% at 75% 20%, rgba(90,160,255,0.22), transparent 62%);
  filter: blur(8px);
  animation: auth-aurora 28s ease-in-out infinite alternate;
}
@keyframes auth-aurora {
  0%   { transform: scale(1) translate(0,0); }
  100% { transform: scale(1.12) translate(2%, -2%); }
}

.auth-card {
  position: relative;
  z-index: 1;
  width: min(400px, 100%);
  padding: 36px 30px 30px;
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(40,44,58,0.96), rgba(22,25,35,0.96));
  border: 1px solid rgba(255,255,255,0.14);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.16) inset,
    0 24px 70px rgba(0,0,0,0.5);
  text-align: center;
  animation: auth-pop 0.5s cubic-bezier(0.34, 1.4, 0.64, 1) both;
}
@keyframes auth-pop {
  from { opacity: 0; transform: translateY(14px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.auth-logo {
  width: 64px; height: 64px; margin: 0 auto 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--accent), var(--ink));
  box-shadow: 0 0 28px rgba(61,139,255,0.5), 0 1px 0 rgba(255,255,255,0.25) inset;
}
.auth-title { font-size: 1.7rem; font-weight: 800; letter-spacing: -0.03em; }
.auth-sub { font-size: 0.92rem; color: rgba(255,255,255,0.6); margin-top: 4px; margin-bottom: 22px; }

.auth-error {
  background: rgba(255,69,58,0.16);
  border: 1px solid rgba(255,69,58,0.45);
  color: #FF9F94;
  font-size: 0.85rem;
  padding: 10px 14px;
  border-radius: 12px;
  margin-bottom: 16px;
}

.auth-form { display: flex; flex-direction: column; gap: 14px; text-align: left; }
.auth-label {
  display: flex; flex-direction: column; gap: 6px;
  font-size: 0.78rem; font-weight: 600; color: rgba(255,255,255,0.65);
}
.auth-input {
  font-family: var(--font);
  font-size: 16px;            /* évite le zoom iOS */
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.05);
  color: #fff;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}
.auth-input::placeholder { color: rgba(255,255,255,0.3); }
.auth-input:focus {
  border-color: var(--accent);
  background: rgba(61,139,255,0.08);
  box-shadow: 0 0 0 4px rgba(61,139,255,0.18);
}

.auth-btn {
  margin-top: 6px;
  font-family: var(--font);
  font-size: 1rem; font-weight: 700;
  padding: 15px;
  border: none;
  border-radius: 14px;
  color: #fff;
  cursor: pointer;
  background: linear-gradient(180deg, #2D93FF, #007AFF);
  box-shadow: 0 8px 24px rgba(0,122,255,0.4), 0 1px 0 rgba(255,255,255,0.3) inset;
  transition: transform 0.15s cubic-bezier(0.34,1.56,0.64,1), box-shadow 0.2s;
}
.auth-btn:hover { transform: translateY(-1px); box-shadow: 0 12px 32px rgba(0,122,255,0.5), 0 1px 0 rgba(255,255,255,0.3) inset; }
.auth-btn:active { transform: scale(0.97); }

.auth-switch { margin-top: 20px; font-size: 0.88rem; color: rgba(255,255,255,0.6); }
.auth-switch a { color: var(--accent-2); font-weight: 600; text-decoration: none; }
.auth-switch a:hover { text-decoration: underline; }

.auth-demo {
  margin-top: 22px; padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex; flex-direction: column; gap: 6px; align-items: center;
}
.auth-demo span { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: rgba(255,255,255,0.4); }
.auth-demo code {
  font-size: 0.82rem; color: rgba(255,255,255,0.75);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 4px 12px; border-radius: 8px;
}