/* ==========================================================================
   LOGIN - accès administration
   (les tokens et les éléments partagés vivent dans ../assets/theme.css)
   ========================================================================== */

body {
  min-height: 100svh;
  display: grid;
  grid-template-columns: 1fr minmax(0, 520px);
  padding: clamp(.6rem, 1.6vw, 1.2rem);
  gap: clamp(.6rem, 1.6vw, 1.2rem);
}

/* VOLET GAUCHE - signature */

.login-aside {
  position: relative;
  padding: clamp(2rem, 5vw, 4rem);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-radius: var(--r-xl);
  border: 1px solid var(--line-soft);
  background: linear-gradient(160deg, var(--surface), var(--bg) 70%);
  overflow: hidden;
  animation: slideFromLeft 1.1s var(--ease-soft) both;
}

.login-aside::before {
  content: '';
  position: absolute;
  bottom: -32%;
  left: -18%;
  width: 62vw;
  height: 62vw;
  max-width: 740px;
  max-height: 740px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(109, 91, 208, .22) 0%, transparent 63%);
  pointer-events: none;
  animation: breathe 16s var(--ease-soft) infinite;
}

@keyframes breathe {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%      { transform: scale(1.12); opacity: .7; }
}

.aside-watermark {
  position: absolute;
  top: 50%;
  right: -12%;
  width: clamp(260px, 32vw, 470px);
  transform: translateY(-50%);
  opacity: .07;
  pointer-events: none;
}

.login-aside > * { position: relative; }

.aside-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.4rem, 5.6vw, 4.4rem);
  line-height: 1;
  letter-spacing: -.02em;
}

.aside-title em {
  font-style: italic;
  background: linear-gradient(105deg, var(--violet) 10%, var(--sand) 95%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.aside-foot {
  display: flex;
  align-items: center;
  gap: .9rem;
  font-size: .68rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--faint);
}

/* VOLET DROIT - formulaire */

.login-panel {
  display: flex;
  align-items: center;
  padding: clamp(1.6rem, 4vw, 3.4rem);
  border-radius: var(--r-xl);
  border: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, .018);
  backdrop-filter: blur(12px);
  animation: slideFromRight 1.1s .1s var(--ease-soft) both;
}

@keyframes slideFromLeft {
  from { opacity: 0; transform: translateX(-46px); }
  to   { opacity: 1; transform: none; }
}

@keyframes slideFromRight {
  from { opacity: 0; transform: translateX(46px); }
  to   { opacity: 1; transform: none; }
}

.login-form { width: 100%; }

.login-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 2rem;
  letter-spacing: -.01em;
  margin: 1.2rem 0 .4rem;
}

.login-sub { font-size: .85rem; color: var(--muted); margin-bottom: 2.4rem; }

.field { display: flex; flex-direction: column; gap: .5rem; margin-bottom: 1.3rem; }

.fl {
  font-size: .64rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--faint);
  padding-left: 1.1rem;
}

.input-wrap { position: relative; }

.fi {
  width: 100%;
  padding: .95rem 3rem .95rem 1.2rem;
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: rgba(0, 0, 0, .28);
  font-size: .95rem;
  font-weight: 300;
  color: var(--text);
  outline: none;
  transition: border-color .5s var(--ease-soft), background .5s var(--ease-soft), box-shadow .5s var(--ease-soft);
}

.fi::placeholder { color: var(--faint); }

.fi:focus {
  border-color: var(--violet-line);
  background: rgba(157, 141, 240, .05);
  box-shadow: 0 0 0 4px rgba(157, 141, 240, .07);
}

.fi.error {
  border-color: rgba(224, 144, 138, .5);
  box-shadow: 0 0 0 4px rgba(224, 144, 138, .06);
}

.pw-toggle {
  position: absolute;
  right: .8rem;
  top: 50%;
  transform: translateY(-50%);
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--faint);
  transition: color .4s var(--ease-soft), background .4s var(--ease-soft);
}

.pw-toggle:hover { color: var(--violet); background: var(--violet-soft); }
.pw-toggle svg { width: 15px; height: 15px; }

.error-msg {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .75rem 1.1rem;
  border-radius: var(--r-md);
  border: 1px solid rgba(224, 144, 138, .22);
  background: rgba(224, 144, 138, .07);
  font-size: .8rem;
  color: var(--danger);
  margin-bottom: 1.4rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity .45s var(--ease-soft), transform .45s var(--ease-soft), visibility .45s;
}

.error-msg.show { opacity: 1; visibility: visible; transform: none; animation: nudge .45s var(--ease-soft); }
.error-msg svg { width: 13px; height: 13px; flex-shrink: 0; }

@keyframes nudge {
  0%, 100% { transform: translateX(0); }
  30%      { transform: translateX(-5px); }
  70%      { transform: translateX(4px); }
}

.btn-submit {
  position: relative;
  width: 100%;
  margin-top: .6rem;
  padding: 1rem 1.9rem;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-strong);
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--text);
  transition: background .55s var(--ease-soft), color .55s var(--ease-soft),
              border-color .55s var(--ease-soft), transform .55s var(--ease-soft),
              box-shadow .55s var(--ease-soft);
}

.btn-submit:hover {
  transform: translateY(-2px);
  color: #0a0a0c;
  border-color: transparent;
  background: linear-gradient(120deg, var(--violet) 0%, var(--sand) 130%);
  box-shadow: 0 16px 40px var(--violet-glow);
}

.btn-submit.loading { pointer-events: none; }
.btn-submit.loading .btn-text { opacity: 0; }

.spinner {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 15px;
  height: 15px;
  margin: -7.5px 0 0 -7.5px;
  border: 1.5px solid rgba(236, 234, 240, .2);
  border-top-color: var(--violet);
  border-radius: 50%;
  opacity: 0;
  animation: spin .7s linear infinite;
}

.btn-submit.loading .spinner { opacity: 1; }

@keyframes spin { to { transform: rotate(360deg); } }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin-top: 2rem;
  padding: .55rem 1.2rem;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-soft);
  font-size: .68rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--faint);
  transition: color .45s var(--ease-soft), border-color .45s var(--ease-soft), background .45s var(--ease-soft);
}

.back-link:hover { color: var(--text); border-color: var(--violet-line); background: var(--violet-soft); }

@media (max-width: 900px) {
  body { grid-template-columns: 1fr; }
  .login-aside { min-height: 30svh; }
  .aside-title { font-size: clamp(2rem, 9vw, 3rem); }
}

@media (prefers-reduced-motion: reduce) {
  .login-aside::before { animation: none; }
  .login-aside, .login-panel { animation-name: fadeOnly; }
}