/* Halaman auth — card form di tengah */

.auth, .auth-main { min-height: 100vh; }

/* ---------- Area form ---------- */
.auth-main {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-10) var(--space-4);
  background: linear-gradient(180deg, #FFFFFF 0%, #FFF6F6 100%);
}

.auth-bg { position: absolute; inset: 0; overflow: hidden; pointer-events: none; z-index: 0; }
.blob { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .5; }
.blob-1 {
  width: 420px; height: 420px; top: -160px; right: -120px;
  background: radial-gradient(circle, var(--accent-rose), transparent 70%);
  animation: float-1 16s ease-in-out infinite;
}
.blob-2 {
  width: 380px; height: 380px; bottom: -160px; left: -120px;
  background: radial-gradient(circle, #DBEAFE, transparent 70%);
  animation: float-2 20s ease-in-out infinite;
}
@keyframes float-1 { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(30px,40px) scale(1.08); } }
@keyframes float-2 { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(-40px,30px) scale(1.05); } }

.auth-shell {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 400px;
}

.brand {
  display: flex;
  justify-content: center;
  width: fit-content;
  margin: 0 auto var(--space-6);
  text-decoration: none;
}
.brand__logo { display: block; height: 40px; width: auto; }

/* Kartu form kaca */
.auth-card {
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  background: rgba(255,255,255,.75);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: 0 30px 70px -30px rgba(23,23,23,.18), inset 0 1px 0 rgba(255,255,255,.9);
}

.auth-card__header { margin-bottom: var(--space-6); text-align: center; }
.auth-card__title {
  font-size: clamp(1.35rem, 4vw, 1.6rem);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--text);
}
.auth-card__subtitle {
  margin: var(--space-2) 0 0;
  font-size: .92rem;
  line-height: 1.6;
  color: var(--text-muted);
}

/* Alert */
.alert {
  display: flex;
  gap: .75rem;
  align-items: flex-start;
  padding: .9rem 1rem;
  margin-bottom: var(--space-5);
  border-radius: 16px;
  font-size: .88rem;
  line-height: 1.5;
}
.alert svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 1px; }
.alert-error {
  background: var(--danger-container);
  border: 1px solid var(--danger-border);
  color: var(--on-danger-container);
  animation: shake .4s ease-in-out;
}
.alert-success {
  background: var(--success-container);
  color: var(--on-success-container);
}
.alert.is-hidden { display: none; }
@keyframes shake { 0%,100% { transform: translateX(0); } 25% { transform: translateX(-4px); } 75% { transform: translateX(4px); } }

/* Form */
.form-group + .form-group { margin-top: var(--space-4); }

.form-label-row { display: flex; justify-content: space-between; align-items: baseline; gap: var(--space-2); }
.form-label {
  display: block;
  margin-bottom: .4rem;
  font: 600 .85rem var(--font-heading);
  color: var(--neutral-700);
}

.input-shell {
  display: flex;
  align-items: center;
  gap: .55rem;
  min-height: 52px;
  padding: 0 .5rem 0 1rem;
  border: 1.5px solid var(--border);
  background: var(--neutral-50);
  border-radius: 16px;
  color: var(--neutral-400);
  transition: var(--transition);
}
.input-shell > svg { width: 18px; height: 18px; flex-shrink: 0; }
.input-shell input {
  flex: 1;
  min-width: 0;
  padding: .85rem 0;
  border: 0;
  outline: 0;
  background: transparent;
  font: 400 1rem var(--font-body);
  color: var(--text);
}
.input-shell input::placeholder { color: var(--neutral-400); }
.input-shell:focus-within {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 4px var(--primary-container);
  color: var(--primary);
}
.input-shell.is-invalid { border-color: var(--danger); box-shadow: 0 0 0 4px var(--danger-container); }

.field-error { margin: .4rem 0 0; font-size: .8rem; color: var(--on-danger-container); }

.icon-btn {
  width: 40px; height: 40px;
  flex-shrink: 0;
  display: grid; place-items: center;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--neutral-500);
  cursor: pointer;
  transition: var(--transition);
}
.icon-btn:hover { background: var(--primary-container); color: var(--primary); }
.icon-btn:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--primary-container); color: var(--primary); }
.icon-btn svg { width: 18px; height: 18px; }

.form-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin: var(--space-5) 0 var(--space-6);
}

.checkbox {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-size: .88rem;
  color: var(--neutral-700);
  cursor: pointer;
  user-select: none;
}
.checkbox input {
  appearance: none;
  -webkit-appearance: none;
  width: 20px; height: 20px;
  margin: 0;
  display: grid; place-items: center;
  border: 1.5px solid var(--neutral-300);
  border-radius: var(--radius-xs);
  background: #fff;
  cursor: pointer;
  transition: var(--transition);
}
.checkbox input::after {
  content: '';
  width: 10px; height: 6px;
  margin-top: -2px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(-45deg) scale(0);
  transition: transform .2s var(--ease-spring);
}
.checkbox input:checked { background: var(--primary); border-color: var(--primary); }
.checkbox input:checked::after { transform: rotate(-45deg) scale(1); }
.checkbox input:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--primary-container); border-color: var(--primary); }

.link {
  font: 600 .85rem var(--font-heading);
  color: var(--primary);
  text-decoration: none;
  border-radius: var(--radius-xs);
}
.link:hover { text-decoration: underline; text-underline-offset: 3px; }
.link:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--primary-container); }

/* Tombol */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  min-height: 52px;
  padding: .8rem 1.5rem;
  border: none;
  border-radius: var(--radius-full);
  font: 600 1rem/1 var(--font-heading);
  cursor: pointer;
  transition: transform .2s var(--ease-spring), box-shadow .2s ease, background .2s ease, opacity .2s ease;
}
.btn:active { transform: scale(.96); }
.btn:focus-visible { outline: none; box-shadow: var(--shadow-primary), 0 0 0 4px var(--primary-container); }
.btn svg { width: 18px; height: 18px; transition: transform .3s var(--ease-spring); }
.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  box-shadow: var(--shadow-primary);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-primary-hover); }
.btn-primary:hover svg { transform: translateX(3px); }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .75; cursor: progress; transform: none; }

.spinner {
  display: none;
  width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
.btn.is-loading .spinner { display: inline-block; }
.btn.is-loading .btn__icon { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Callout info di bawah form */
.callout {
  display: flex;
  gap: .75rem;
  margin-top: var(--space-6);
  padding: 1rem 1.1rem;
  border-radius: var(--radius-md);
  background: var(--info-container);
  color: var(--on-info-container);
  font-size: .85rem;
  line-height: 1.55;
}
.callout svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 1px; }
.callout strong { font-family: var(--font-heading); font-weight: 600; }

.auth-footer {
  margin-top: var(--space-6);
  text-align: center;
  font-size: .8rem;
  color: var(--text-muted);
}

/* Entrance */
.enter { opacity: 0; transform: translateY(14px); animation: enter .6s var(--ease-entrance) forwards; }
.enter-2 { animation-delay: .1s; }
.enter-3 { animation-delay: .2s; }
@keyframes enter { to { opacity: 1; transform: translateY(0); } }

/* ---------- Responsive ---------- */

@media (max-width: 575.98px) {
  .auth-main { justify-content: flex-start; padding-top: var(--space-12); }
  .auth-card { padding: var(--space-6) var(--space-5); }
  .form-row { flex-wrap: wrap; }
}

/* ---------- Dark mode (§8) ---------- */
:root[data-theme="dark"] .auth-main { background: linear-gradient(180deg, #161212 0%, #121212 100%); }
:root[data-theme="dark"] .blob { opacity: .18; }
:root[data-theme="dark"] .auth-card {
  background: rgba(30,30,30,.75);
  box-shadow: 0 30px 70px -30px rgba(0,0,0,.6), inset 0 1px 0 rgba(255,255,255,.06);
}
:root[data-theme="dark"] .form-label,
:root[data-theme="dark"] .checkbox { color: #D4D4D4; }
:root[data-theme="dark"] .input-shell { background: var(--surface-2); color: var(--text-muted); }
:root[data-theme="dark"] .input-shell:focus-within { background: var(--surface-1); color: var(--accent-rose); border-color: var(--primary); }
:root[data-theme="dark"] .checkbox input { background: var(--surface-2); border-color: #525252; }
:root[data-theme="dark"] .checkbox input:checked { background: var(--primary); border-color: var(--primary); }
:root[data-theme="dark"] .icon-btn { background: rgba(255,255,255,.05); color: var(--text-muted); }
:root[data-theme="dark"] .icon-btn:hover { background: rgba(173,0,0,.28); color: var(--accent-rose); }
:root[data-theme="dark"] .link { color: var(--accent-rose); }
:root[data-theme="dark"] .brand {
  width: fit-content;
  padding: .6rem 1rem;
  border-radius: var(--radius-md);
  background: #fff;
}