/* ============================================================
   LOGIN v2 - Rediseno profesional
   2026-09-23
   ============================================================ */

#screen-login {
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
  overflow-y: auto;
  position: relative;
  background: radial-gradient(ellipse at 50% 30%, var(--bg-2) 0%, var(--bg-1) 60%, var(--bg-0) 100%);
}
#screen-login.active { display: flex; }

.login-bg-orbs {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}
.login-bg-orbs .orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
  animation: orbFloat 20s ease-in-out infinite;
}
.login-bg-orbs .orb-1 {
  width: 320px; height: 320px;
  background: var(--accent-2);
  top: -100px; left: -80px;
  animation-delay: 0s;
}
.login-bg-orbs .orb-2 {
  width: 280px; height: 280px;
  background: var(--accent);
  bottom: -80px; right: -60px;
  animation-delay: -7s;
}
.login-bg-orbs .orb-3 {
  width: 220px; height: 220px;
  background: var(--gold);
  top: 40%; right: 10%;
  opacity: 0.2;
  animation-delay: -14s;
}
@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%      { transform: translate(40px, -30px) scale(1.1); }
  66%      { transform: translate(-30px, 30px) scale(0.95); }
}

#screen-login .login-card {
  position: relative;
  z-index: 1;
  background: linear-gradient(160deg, var(--bg-1) 0%, var(--bg-2) 100%);
  border: 1px solid var(--border-strong);
  border-radius: 20px;
  padding: 38px 32px 28px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6),
              0 0 0 1px rgba(128, 224, 255, 0.06);
  animation: loginCardIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes loginCardIn {
  from { opacity: 0; transform: translateY(20px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

#screen-login .login-header {
  text-align: center;
  margin-bottom: 26px;
}
#screen-login .login-card .logo {
  font-size: 28px;
  font-weight: 900;
  letter-spacing: 2px;
  color: var(--accent);
  margin: 0 0 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  animation: logoPulse 3s ease-in-out infinite;
}
@keyframes logoPulse {
  0%, 100% { transform: scale(1); filter: drop-shadow(0 0 6px rgba(212,165,116,0.3)); }
  50%      { transform: scale(1.02); filter: drop-shadow(0 0 14px rgba(212,165,116,0.5)); }
}
#screen-login .login-card .logo img {
  max-height: 64px;
  max-width: 100%;
  object-fit: contain;
  display: block;
}
#screen-login .login-card .sub {
  font-size: 12px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0;
}

#screen-login .tabs {
  display: flex;
  position: relative;
  background: rgba(0,0,0,0.25);
  border-radius: 12px;
  padding: 5px;
  margin-bottom: 22px;
  border: 1px solid var(--border);
}
#screen-login .tab {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 12px;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  cursor: pointer;
  transition: color 0.25s;
  position: relative;
  z-index: 1;
}
#screen-login .tab .tab-icon {
  width: 16px;
  height: 16px;
  transition: transform 0.25s;
}
#screen-login .tab:hover { color: var(--text); }
#screen-login .tab.active { color: var(--accent-2); }
#screen-login .tab.active .tab-icon { transform: scale(1.1); }

#screen-login .tabs::after {
  content: '';
  position: absolute;
  top: 5px;
  bottom: 5px;
  left: 5px;
  width: calc(50% - 5px);
  border-radius: 8px;
  background: rgba(128, 224, 255, 0.12);
  border: 1px solid rgba(128, 224, 255, 0.25);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 0;
}
#screen-login .tabs.register-active::after {
  transform: translateX(100%);
}

#screen-login .form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  animation: formFadeIn 0.3s ease-out;
}
@keyframes formFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

#screen-login .input-group {
  position: relative;
  display: flex;
  align-items: center;
}
#screen-login .input-group .input-icon {
  position: absolute;
  left: 14px;
  width: 18px;
  height: 18px;
  color: var(--text-dim);
  pointer-events: none;
  transition: color 0.2s;
  z-index: 2;
}
#screen-login .input-group input {
  width: 100%;
  padding: 14px 44px 14px 44px;
  background: rgba(0, 0, 0, 0.35);
  border: 2px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  font-family: inherit;
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}
#screen-login .input-group input:focus {
  border-color: var(--accent-2);
  background: rgba(0, 0, 0, 0.5);
  box-shadow: 0 0 0 4px rgba(128, 224, 255, 0.12);
}
#screen-login .input-group:focus-within .input-icon {
  color: var(--accent-2);
}
#screen-login .input-group input::placeholder {
  color: var(--text-dim);
  opacity: 0.6;
}

#screen-login .toggle-pass {
  position: absolute;
  right: 12px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
  z-index: 3;
  padding: 0;
}
#screen-login .toggle-pass:hover {
  color: var(--accent-2);
  background: rgba(128, 224, 255, 0.1);
}
#screen-login .toggle-pass svg {
  width: 18px;
  height: 18px;
}

#screen-login .input-req {
  position: absolute;
  right: 14px;
  color: var(--red);
  font-weight: 900;
  font-size: 16px;
  pointer-events: none;
  z-index: 2;
}

#screen-login .input-hint {
  font-size: 11px;
  color: var(--text-dim);
  line-height: 1.4;
  margin: -8px 2px 0;
  padding-left: 4px;
}

#screen-login .login-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 15px 20px;
  margin-top: 6px;
  background: linear-gradient(135deg, var(--accent-2) 0%, #40a0d0 100%);
  border: none;
  border-radius: 12px;
  color: #04121a;
  font-family: inherit;
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  overflow: hidden;
  transition: transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 6px 20px rgba(128, 224, 255, 0.3);
}
#screen-login .login-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(128, 224, 255, 0.45);
}
#screen-login .login-btn:active:not(:disabled) {
  transform: translateY(0) scale(0.99);
}
#screen-login .login-btn:disabled {
  opacity: 0.6;
  cursor: wait;
}
#screen-login .login-btn .btn-arrow {
  width: 16px;
  height: 16px;
  transition: transform 0.2s;
}
#screen-login .login-btn:hover .btn-arrow {
  transform: translateX(3px);
}
#screen-login .login-btn .btn-spinner {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(4, 18, 26, 0.25);
  border-top-color: #04121a;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
#screen-login .login-btn.loading .btn-spinner { display: block; }
#screen-login .login-btn.loading .btn-text { opacity: 0.7; }
#screen-login .login-btn.loading .btn-arrow { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }

#screen-login .login-btn::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.3) 50%, transparent 100%);
  transition: left 0.6s;
  pointer-events: none;
}
#screen-login .login-btn:hover:not(:disabled)::before {
  left: 100%;
}

#screen-login .forgot-link {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.3px;
  cursor: pointer;
  padding: 8px;
  margin-top: 4px;
  text-align: center;
  transition: color 0.15s;
  align-self: center;
}
#screen-login .forgot-link:hover {
  color: var(--accent-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}

#screen-login .error {
  margin-top: 14px;
  font-size: 12px;
  color: var(--red);
  text-align: center;
  min-height: 18px;
  line-height: 1.4;
  font-weight: 700;
}
#screen-login .error:not(:empty) {
  animation: errorShake 0.4s cubic-bezier(0.36, 0.07, 0.19, 0.97);
  padding: 8px 12px;
  background: rgba(255, 85, 102, 0.08);
  border-left: 3px solid var(--red);
  border-radius: 6px;
  text-align: left;
}
@keyframes errorShake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}

#screen-login .reg-ref-info,
#screen-login .reg-terms-info { margin-top: 4px; }
#screen-login .reg-ref-info.hidden,
#screen-login .reg-terms-info.hidden { display: none; }

@media (max-width: 500px) {
  #screen-login {
    padding: 12px;
    align-items: flex-start;
    padding-top: 24px;
  }
  #screen-login .login-card {
    padding: 28px 22px 22px;
    border-radius: 16px;
  }
  #screen-login .login-card .logo { font-size: 22px; min-height: 44px; }
  #screen-login .login-card .logo img { max-height: 52px; }
  #screen-login .tab { font-size: 11px; padding: 10px 8px; }
  #screen-login .tab .tab-icon { width: 14px; height: 14px; }
  #screen-login .input-group input { font-size: 16px; padding: 13px 42px 13px 42px; }
  #screen-login .login-btn { padding: 14px; font-size: 13px; }
}