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

body {
  font-family: "Segoe UI", Tahoma, sans-serif;
  background: #0c0f14;
  color: #fff;
  min-height: 100dvh;
  display: flex;
}

.panel-left,
.panel-right {
  flex: 1 1 50%;
  min-height: 100dvh;
}

.panel-left {
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at top left, rgba(102, 255, 102, 0.08), transparent 30%),
    linear-gradient(180deg, #0d1016 0%, #0b0d12 100%);
  padding: clamp(18px, 3vw, 40px);
}

.left-content {
  max-width: 420px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.logo-img {
  width: 180px;
  max-width: 70%;
  height: auto;
  object-fit: contain;
  margin-bottom: 16px;

  /* mejora visual */
  filter: drop-shadow(0 6px 18px rgba(0,0,0,0.4));
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 13px;
  color: #6f7784;
  margin-bottom: 8px;
}

.system-sub {
  font-size: 15px;
  color: #b4bbc4;
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.feat-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: #d8dde6;
}

.feat-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 6px rgba(74, 222, 128, 0.5);
}

.panel-right {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(14px, 2.6vw, 24px);
  background:
    radial-gradient(circle at top right, rgba(0, 153, 255, 0.08), transparent 28%),
    linear-gradient(180deg, #0d1016 0%, #0a0c11 100%);
}

.form-box {
  width: min(100%, 460px);
  background: rgba(20, 23, 31, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 20px;
  padding: clamp(20px, 3.5vw, 34px) clamp(18px, 3.5vw, 34px) clamp(18px, 2.8vw, 28px);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.4);
}

.form-logo {
  display: none;
  width: min(230px, 78%);
  margin: 0 auto 14px;
  height: auto;
  object-fit: contain;
}

.form-title {
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 800;
  margin-bottom: 8px;
  color: #ffffff;
  letter-spacing: -0.02em;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
}

.form-sub {
  font-size: clamp(14px, 2.1vw, 15px);
  color: #a3aab7;
  margin-bottom: 24px;
}

.campo {
  margin-bottom: 16px;
}

.campo-usuario {
  position: relative;
}

.usuario-combo {
  position: relative;
}

.campo label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  color: #aeb6c3;
  font-weight: 600;
}

.campo input,
.campo select {
  width: 100%;
  height: clamp(46px, 6.5vw, 52px);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: #090b10;
  color: #fff;
  padding: 0 14px;
  font-size: 16px;
  outline: none;
  transition: all 0.2s ease;
}

.campo-usuario input {
  padding-right: 48px;
}

.usuario-dropdown-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 34px;
  height: 34px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  background: #111620;
  color: #cfd6df;
  cursor: pointer;
  display: grid;
  place-items: center;
}

.usuario-dropdown-btn:hover {
  border-color: rgba(126, 217, 87, 0.45);
}

.usuario-dropdown-caret {
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid #cfd6df;
}

.usuario-dropdown-panel {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background: #0f141d;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.45);
  overflow-y: auto;
  max-height: 210px;
  z-index: 30;
}

.usuario-option {
  width: 100%;
  min-height: 42px;
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background: transparent;
  color: #e6ebf2;
  text-align: left;
  padding: 10px 12px;
  cursor: pointer;
  font-size: 14px;
}

.usuario-option:last-child {
  border-bottom: 0;
}

.usuario-option:hover,
.usuario-option.is-active {
  background: rgba(126, 217, 87, 0.15);
}

.usuario-option small {
  display: block;
  margin-top: 2px;
  color: #93a1b5;
  font-size: 12px;
}

.campo input::placeholder {
  color: #6f7784;
}

.campo input:focus,
.campo select:focus {
  border-color: #7ed957;
  box-shadow: 0 0 0 3px rgba(126, 217, 87, 0.12);
}

.btn-login {
  width: 100%;
  height: clamp(50px, 7vw, 56px);
  border: none;
  border-radius: 12px;
  background: #147696;
  color: #ffffff;
  font-size: clamp(16px, 2.8vw, 17px);
  font-weight: 700;
  cursor: pointer;
  margin-top: 10px;
  transition: all 0.25s ease;
}

.btn-login:hover {
  background: #418f9e;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(65, 143, 158, 0.4);
}

.btn-login:disabled {
  opacity: 0.8;
  cursor: not-allowed;
}

.error-msg {
  display: none;
  margin-bottom: 14px;
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(255, 77, 77, 0.12);
  color: #ff8b8b;
  font-size: 14px;
  border: 1px solid rgba(255, 77, 77, 0.2);
}

.quick-login {
  margin-bottom: 14px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(126, 217, 87, 0.22);
  background: rgba(126, 217, 87, 0.09);
}

.quick-login-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: #a9c59a;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.quick-login-change {
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: #0f141d;
  color: #d8e6cf;
  font-size: 12px;
  border-radius: 8px;
  padding: 4px 8px;
  cursor: pointer;
}

.quick-login-change:hover {
  border-color: rgba(126, 217, 87, 0.45);
}

.quick-login-user {
  margin-top: 8px;
  font-size: 16px;
  font-weight: 700;
  color: #e9f7e3;
  letter-spacing: 0.02em;
}

.version {
  text-align: center;
  margin-top: 20px;
  color: #5f6775;
  font-size: 12px;
  letter-spacing: 0.14em;
}

@media (max-width: 980px) {
  .panel-left {
    display: none;
  }

  .panel-right {
    width: 100%;
    padding: 12px;
  }

  .form-box {
    width: 100%;
    max-width: 520px;
    border-radius: 16px;
  }

  .form-logo {
    display: block;
  }
}

@media (max-width: 560px) {
  .panel-right {
    align-items: flex-start;
    padding: 8px;
  }

  .form-box {
    margin-top: max(6px, env(safe-area-inset-top));
    border-radius: 14px;
  }

  .form-title {
    margin-top: 2px;
  }

  .version {
    letter-spacing: 0.1em;
  }
}

.hidden {
  display: none !important;
}

.licencia-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.76);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 4000;
  padding: 16px;
}

.licencia-box {
  width: min(100%, 560px);
  background: #11161f;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.5);
}

.licencia-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.licencia-mensaje {
  font-size: 14px;
  color: #d0d7e2;
  margin-bottom: 12px;
}

.licencia-campo {
  margin-bottom: 12px;
}

.licencia-campo label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  color: #aeb6c3;
  font-weight: 600;
}

.control-grupos {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.control-grupos input {
  height: 46px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: #090b10;
  color: #ffffff;
  font-size: 20px;
  letter-spacing: 0.06em;
  text-align: center;
  font-weight: 700;
}

.control-grupos input:focus {
  border-color: #7ed957;
  box-shadow: 0 0 0 3px rgba(126, 217, 87, 0.12);
  outline: none;
}

.control-actual input {
  background: #171f2d;
  color: #9ec2ff;
}

.licencia-error {
  min-height: 20px;
  margin-bottom: 10px;
  color: #ff8b8b;
  font-size: 13px;
  font-weight: 600;
}

.licencia-acciones {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.licencia-acciones button {
  height: 44px;
  border: 0;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  cursor: pointer;
}

#btnLicenciaConfirmar {
  background: #147696;
}

#btnLicenciaContinuar {
  background: #2e7d32;
}

#btnLicenciaCerrar {
  background: #757575;
}

@media (max-width: 560px) {
  .licencia-box {
    padding: 14px;
  }

  .licencia-title {
    font-size: 19px;
  }

  .control-grupos {
    gap: 6px;
  }

  .control-grupos input {
    height: 42px;
    font-size: 18px;
  }

  .licencia-acciones {
    grid-template-columns: 1fr;
  }
}