/* ============================================================
   HG · ERP — Login CSS
   Huarcaya Group · Tema claro profesional
============================================================ */

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

:root {
  --gold:      oklch(0.600 0.140 52);
  --gold-hi:   oklch(0.520 0.150 50);
  --gold-lo:   oklch(0.700 0.120 55);
  --gold-dim:  oklch(0.600 0.140 52 / 0.10);
  --gold-bdr:  oklch(0.600 0.140 52 / 0.30);
  --bg:        #f5f4f2;
  --card-bg:   #ffffff;
  --fg-0:      #1a1714;
  --fg-1:      #3d3830;
  --fg-2:      #7a746c;
  --fg-3:      #a8a29b;
  --line:      #e2ddd8;
  --ok:        #16a34a;
  --ok-dim:    #dcfce7;
  --warn:      #d97706;
  --warn-dim:  #fef3c7;
  --err:       #dc2626;
  --err-dim:   #fee2e2;
  --ff:        "IBM Plex Sans", system-ui, sans-serif;
  --ff-mono:   "JetBrains Mono", monospace;
  --radius:    12px;
}

html, body {
  height: 100%;
  background: var(--bg);
  font-family: var(--ff);
  color: var(--fg-0);
  -webkit-font-smoothing: antialiased;
}

/* ── Fondo decorativo ────────────────────────── */
.login-bg {
  position: fixed; inset: 0; z-index: 0;
  overflow: hidden; pointer-events: none;
}
.login-bg__shape {
  position: absolute; border-radius: 50%;
  opacity: 0.055;
}
.login-bg__shape--1 {
  width: 600px; height: 600px;
  background: var(--gold);
  top: -200px; left: -200px;
  animation: drift 18s ease-in-out infinite alternate;
}
.login-bg__shape--2 {
  width: 400px; height: 400px;
  background: var(--gold-lo);
  bottom: -150px; right: -100px;
  animation: drift 22s ease-in-out infinite alternate-reverse;
}
.login-bg__shape--3 {
  width: 250px; height: 250px;
  background: var(--gold);
  top: 50%; right: 30%;
  animation: drift 28s ease-in-out infinite alternate;
}
@keyframes drift {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(40px, 30px) scale(1.08); }
}

/* ── Layout ──────────────────────────────────── */
.login-wrap {
  position: relative; z-index: 1;
  display: flex;
  min-height: 100vh;
}

/* ── Panel izquierdo (branding) ──────────────── */
.login-brand {
  flex: 0 0 400px;
  background: linear-gradient(155deg, var(--gold-hi) 0%, var(--gold) 50%, var(--gold-lo) 100%);
  display: flex; align-items: center; justify-content: center;
  padding: 48px 40px;
  position: relative; overflow: hidden;
}
.login-brand::before {
  content: '';
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.login-brand__inner {
  position: relative; z-index: 1;
  text-align: center; color: #fff;
}

.login-brand__logo {
  height: 120px;
  width: auto;
  margin-bottom: 20px;
  filter: drop-shadow(0 4px 16px rgba(0,0,0,0.3));
  animation: fadeUp .6s ease both;
}

.login-brand__name {
  font-size: 20px; font-weight: 700;
  letter-spacing: 0.12em;
  animation: fadeUp .6s .1s ease both;
}
.login-brand__sub {
  font-size: 13px; opacity: 0.75;
  margin-top: 6px; letter-spacing: 0.06em;
  animation: fadeUp .6s .15s ease both;
}
.login-brand__modules {
  margin-top: 36px; display: flex; flex-direction: column; gap: 12px;
  animation: fadeUp .6s .25s ease both;
}
.lbm-item {
  display: flex; align-items: center; gap: 12px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 8px; padding: 10px 16px;
  font-size: 13px; font-weight: 500;
  backdrop-filter: blur(4px);
  transition: background .2s;
}
.lbm-item:hover { background: rgba(255,255,255,0.22); }
.lbm-item i { font-size: 17px; opacity: 0.9; }
.login-brand__footer {
  margin-top: 40px; font-size: 11px;
  opacity: 0.5; letter-spacing: 0.05em;
  font-family: var(--ff-mono);
  animation: fadeUp .6s .35s ease both;
}

/* ── Panel derecho (formulario) ──────────────── */
.login-panel {
  flex: 1;
  display: flex; align-items: center; justify-content: center;
  padding: 32px 24px;
  animation: fadeIn .5s ease both;
}
.login-card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 4px 32px rgba(0,0,0,0.08);
  padding: 40px;
  width: 100%; max-width: 420px;
}

/* Logo móvil (oculto en desktop) */
.login-card__logo-mobile img {
  height: 56px;
  width: auto;
  filter: none;
}
.login-card__logo-mobile img { height: 32px; }
.login-card__logo-mobile span { font-size: 13px; font-weight: 700; letter-spacing: 0.08em; color: var(--gold); }

.login-card__header { margin-bottom: 28px; }
.login-card__header h1 { font-size: 24px; font-weight: 700; color: var(--fg-0); margin-bottom: 6px; }
.login-card__header p  { font-size: 13px; color: var(--fg-2); }

/* ── Alertas ─────────────────────────────────── */
.login-alert {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 12px 14px; border-radius: 8px;
  font-size: 13px; margin-bottom: 20px;
  animation: shake .4s ease;
}
.login-alert i { font-size: 16px; flex-shrink: 0; margin-top: 1px; }
.login-alert--err  { background: var(--err-dim);  color: var(--err);  border: 1px solid #fca5a5; }
.login-alert--warn { background: var(--warn-dim); color: var(--warn); border: 1px solid #fcd34d; }
.login-alert--ok   { background: var(--ok-dim);   color: var(--ok);   border: 1px solid #86efac; }

/* ── Campos ──────────────────────────────────── */
.login-field { margin-bottom: 20px; }
.login-field label {
  display: flex; align-items: center; gap: 7px;
  font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.07em;
  color: var(--fg-2); margin-bottom: 8px;
  font-family: var(--ff-mono);
}
.login-field label i { font-size: 14px; }
.login-field input {
  width: 100%; height: 46px;
  border: 1.5px solid var(--line);
  border-radius: 9px;
  padding: 0 14px;
  font-family: var(--ff-mono); font-size: 14px;
  color: var(--fg-0); background: #fafaf9;
  outline: none;
  transition: border-color .2s, box-shadow .2s, background .2s;
}
.login-field input:focus {
  border-color: var(--gold);
  background: #fff;
  box-shadow: 0 0 0 4px var(--gold-dim);
}
.login-field input::placeholder { color: var(--fg-3); font-family: var(--ff); font-size: 13px; }
.login-field input.is-invalid { border-color: var(--err); box-shadow: 0 0 0 4px rgba(220,38,38,.08); }
.login-field__hint { font-size: 11px; color: var(--fg-3); margin-top: 6px; font-family: var(--ff-mono); }

/* Campo contraseña con botón ojo */
.login-field__pw { position: relative; }
.login-field__pw input { padding-right: 46px; }
.pw-toggle {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  background: none; border: none; cursor: pointer;
  color: var(--fg-3); font-size: 17px; padding: 4px;
  transition: color .15s;
}
.pw-toggle:hover { color: var(--gold); }

/* ── Botón principal ─────────────────────────── */
.login-btn {
  width: 100%; height: 48px;
  background: linear-gradient(135deg, var(--gold-hi), var(--gold));
  border: none; border-radius: 10px;
  color: #fff; font-size: 14px; font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer; margin-top: 8px;
  display: flex; align-items: center; justify-content: center; gap: 10px;
  box-shadow: 0 4px 14px var(--gold-bdr);
  transition: transform .15s, box-shadow .15s, opacity .15s;
  font-family: var(--ff);
}
.login-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--gold-bdr);
}
.login-btn:active:not(:disabled) { transform: translateY(0); }
.login-btn:disabled { opacity: 0.65; cursor: not-allowed; }

/* Spinner */
.login-spinner {
  width: 20px; height: 20px;
  border: 2.5px solid rgba(255,255,255,.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Footer del card */
.login-card__footer {
  margin-top: 28px; padding-top: 20px;
  border-top: 1px solid var(--line);
  text-align: center;
  font-size: 11.5px; color: var(--fg-3);
  font-family: var(--ff-mono);
  display: flex; align-items: center; justify-content: center; gap: 8px;
}

/* ── Animaciones ─────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}

/* ── Responsive ──────────────────────────────── */
@media (max-width: 768px) {
  .login-brand { display: none; }
  .login-panel { padding: 20px 16px; align-items: flex-start; padding-top: 40px; }
  .login-card { padding: 28px 22px; box-shadow: none; border: none; max-width: 100%; }
  .login-card__logo-mobile { display: flex; }
  .login-card__header h1 { font-size: 20px; }
}
@media (min-width: 769px) and (max-width: 1024px) {
  .login-brand { flex: 0 0 320px; }
  .login-brand__inner { padding: 0 10px; }
}