/* ════════════════════════════════
   LOGIN — estilos exclusivos de #screen-login
   (las clases compartidas .form-group/.btn/.error-msg viven en base.css)
   ════════════════════════════════ */
#screen-login {
  align-items: center;
  justify-content: center;
  padding: 20px 16px;
  padding-bottom: env(safe-area-inset-bottom, 20px);
}

.login-container {
  width: 100%;
  max-width: 420px;
  animation: fadeUp 0.5s ease;
}

.login-logo {
  text-align: center;
  margin-bottom: 16px;
}

.logo-image {
  max-width: 320px;
  width: 90%;
  height: auto;
}

.logo-with-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.logo-icon {
  width: 72px;
  height: 72px;
  filter: drop-shadow(0 0 20px var(--accent-glow));
}

.logo-text {
  font-family: var(--font-display);
  font-size: clamp(56px, 16vw, 72px);
  letter-spacing: 8px;
  line-height: 1;
  background: linear-gradient(160deg, #ffffff 0%, var(--accent2) 50%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 24px var(--accent-glow));
}

.login-logo .logo-title {
  font-family: var(--font-display);
  font-size: clamp(56px, 18vw, 80px);
  letter-spacing: 6px;
  line-height: 1;
  background: linear-gradient(160deg, #ffffff 0%, var(--accent2) 50%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 24px var(--accent-glow));
}

.login-logo .logo-sub {
  font-size: 11px;
  letter-spacing: 5px;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-top: 6px;
  font-weight: 500;
}

.login-card {
  background: rgba(13,29,74,0.7);
  border: 1px solid var(--border2);
  border-radius: 20px;
  padding: 28px 24px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 8px 48px rgba(0,0,20,0.5), inset 0 1px 0 rgba(255,255,255,0.07);
}

.login-card h2 {
  font-family: var(--font-display);
  font-size: 30px;
  letter-spacing: 3px;
  margin-bottom: 20px;
  color: var(--text);
}

/* ── LANGUAGE TOGGLE ── */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 2px;
  background: rgba(17,34,96,0.8);
  border: 1px solid var(--border2);
  border-radius: 8px;
  padding: 3px;
}

.lang-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: 6px;
  font-family: var(--font-body);
  letter-spacing: 1px;
  transition: all 0.2s;
}

.lang-btn.active, .lang-btn:hover { background: var(--surface3); color: var(--accent2); }

/* ── LOGIN TABS ── */
.login-tab-btn {
  flex: 1;
  padding: 10px 16px;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  min-height: 42px;
}

.login-tab-btn.active-tab {
  background: var(--surface3);
  color: var(--text);
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

/* Login responsivo (≤640px) */
@media (max-width: 640px) {
  .logo-image { max-width: 260px; }
  .login-card { padding: 22px 18px; }
}

/* Login responsivo (>1024px) */
@media (min-width: 1025px) {
  .login-card { padding: 40px; }
}