:root {
  --navy:   #0D1B2A;
  --gold:   #C9A84C;
  --gold-lt:#E8C97A;
  --cream:  #F5F0E8;
  --muted:  #8A9BB0;
  --error:  #D64045;
  --card-bg:#162033;
}

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

body {
  min-height: 100vh;
  display: flex;
  font-family: 'DM Sans', sans-serif;
  background: var(--navy);
  overflow: hidden;
}

/* ── Panel izquierdo decorativo ── */
.panel-left {
  flex: 1;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 3rem;
  overflow: hidden;
}

.panel-left::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 30% 40%, rgba(201,168,76,0.18) 0%, transparent 70%),
    radial-gradient(ellipse 60% 80% at 80% 80%, rgba(13,27,42,0.9) 0%, transparent 60%);
  z-index: 1;
}

/* Cuadrícula de fondo */
.grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(201,168,76,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201,168,76,0.06) 1px, transparent 1px);
  background-size: 48px 48px;
}

/* Círculos decorativos */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.25;
}
.orb-1 { width: 400px; height: 400px; background: var(--gold); top: -80px; left: -100px; animation: drift 8s ease-in-out infinite alternate; }
.orb-2 { width: 300px; height: 300px; background: #3A7CA5; bottom: 60px; right: -60px; animation: drift 11s ease-in-out infinite alternate-reverse; }

@keyframes drift { from { transform: translate(0,0); } to { transform: translate(30px, 20px); } }

.brand-text {
  position: relative;
  z-index: 2;
}

.brand-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid rgba(201,168,76,0.4);
  padding: 4px 12px;
  border-radius: 2px;
  margin-bottom: 1.2rem;
}

.brand-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  font-weight: 700;
  color: var(--cream);
  line-height: 1.15;
  margin-bottom: 1rem;
}

.brand-title span { color: var(--gold); }

.brand-sub {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.7;
  max-width: 360px;
}

.decorative-line {
  width: 60px;
  height: 2px;
  background: var(--gold);
  margin: 1.2rem 0;
}

/* Íconos flotantes de avión */
.plane-icon {
  position: absolute;
  z-index: 2;
  opacity: 0.15;
  font-size: 1.8rem;
}
.plane-1 { top: 18%; left: 20%; animation: float 6s ease-in-out infinite; }
.plane-2 { top: 40%; right: 18%; animation: float 8s ease-in-out infinite 2s; font-size: 1.1rem; }
.plane-3 { bottom: 35%; left: 45%; animation: float 7s ease-in-out infinite 1s; font-size: 1.4rem; }

@keyframes float { 0%,100% { transform: translateY(0) rotate(-20deg); } 50% { transform: translateY(-12px) rotate(-10deg); } }

/* ── Panel derecho — formulario ── */
.panel-right {
  width: 440px;
  min-height: 100vh;
  background: var(--card-bg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 3rem 2.8rem;
  position: relative;
  box-shadow: -20px 0 80px rgba(0,0,0,0.5);
}

.panel-right::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--gold-lt), var(--gold));
}

/* Logo */
.logo-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 2.5rem;
}

.logo-icon {
  width: 44px; height: 44px;
  background: var(--gold);
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 1.4rem;
}

.logo-name {
  font-family: 'Playfair Display', serif;
  font-size: 1.25rem;
  color: var(--cream);
  font-weight: 600;
  line-height: 1.2;
}

.logo-name small {
  display: block;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.65rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 400;
}

/* Encabezado */
.form-header { margin-bottom: 2rem; }

.form-header h2 {
  font-family: 'Playfair Display', serif;
  font-size: 1.75rem;
  color: var(--cream);
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.form-header p {
  font-size: 0.85rem;
  color: var(--muted);
}

/* Campos */
.field { margin-bottom: 1.2rem; }

label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}

.input-wrap {
  position: relative;
}

.input-wrap .icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1rem;
  pointer-events: none;
  opacity: 0.5;
}

input[type="email"],
input[type="password"],
input[type="text"] {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  padding: 13px 14px 13px 42px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  color: var(--cream);
  outline: none;
  transition: border-color .25s, background .25s, box-shadow .25s;
}

input::placeholder { color: rgba(255,255,255,0.2); }

input:focus {
  border-color: var(--gold);
  background: rgba(201,168,76,0.06);
  box-shadow: 0 0 0 3px rgba(201,168,76,0.12);
}

/* Mostrar/ocultar password */
.toggle-pass {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--muted);
  padding: 4px;
  transition: color .2s;
}
.toggle-pass:hover { color: var(--gold); }

/* Mensaje de error */
.error-msg {
  display: none;
  align-items: center;
  gap: 8px;
  background: rgba(214,64,69,0.12);
  border: 1px solid rgba(214,64,69,0.3);
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 0.82rem;
  color: #f08080;
  margin-bottom: 1rem;
}
.error-msg.visible { display: flex; }

/* Botón */
.btn-login {
  width: 100%;
  padding: 14px;
  background: var(--gold);
  border: none;
  border-radius: 8px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--navy);
  cursor: pointer;
  letter-spacing: 0.5px;
  transition: background .25s, transform .15s, box-shadow .25s;
  position: relative;
  overflow: hidden;
  margin-top: 0.5rem;
}

.btn-login:hover {
  background: var(--gold-lt);
  box-shadow: 0 8px 24px rgba(201,168,76,0.35);
  transform: translateY(-1px);
}

.btn-login:active { transform: translateY(0); }

.btn-login.loading .btn-text { opacity: 0; }
.btn-login.loading::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
}

.spinner {
  display: none;
  position: absolute;
  inset: 0;
  align-items: center;
  justify-content: center;
}
.btn-login.loading .spinner { display: flex; }
.spinner::after {
  content: '';
  width: 18px; height: 18px;
  border: 2px solid rgba(13,27,42,0.3);
  border-top-color: var(--navy);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Footer */
.form-footer {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.06);
  text-align: center;
  font-size: 0.78rem;
  color: var(--muted);
}

/* Responsive */
@media (max-width: 768px) {
  .panel-left { display: none; }
  .panel-right { width: 100%; padding: 2.5rem 1.8rem; }
}