@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Roboto+Mono:wght@400;500;600&display=swap');

:root {
  --bg-body: #0d0d0d;
  --bg-surface: #141414;
  --bg-card: #181818;
  --bg-input: #101010;
  --bg-input-focus: #141414;

  --border-color: #242424;
  --border-focus: #e50914;
  --border-subtle: #1f1f1f;

  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  --text-muted: #5e5e5e;

  --accent-red: #e50914;
  --accent-red-hover: #b30000;
  --accent-red-dim: rgba(229, 9, 20, 0.12);

  --status-ok: #2ebd59;
  --status-ok-bg: rgba(46, 189, 89, 0.1);
  --status-err: #e50914;
  --status-err-bg: rgba(229, 9, 20, 0.12);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'Roboto Mono', monospace;

  --radius-sm: 4px;
  --radius-md: 6px;
  --transition: all 0.18s ease-in-out;
}

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

html, body {
  min-height: 100vh;
  background-color: var(--bg-body);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  display: flex;
  flex-direction: column;
}

/* Header superior minimalista */
.top-header {
  height: 56px;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  position: relative;
  z-index: 10;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-marker {
  width: 3px;
  height: 16px;
  background-color: var(--accent-red);
  display: inline-block;
}

.brand-title {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.brand-subtitle {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  padding-left: 8px;
  border-left: 1px solid var(--border-color);
}

.status-section {
  display: flex;
  align-items: center;
  gap: 20px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--status-ok);
  box-shadow: 0 0 6px rgba(46, 189, 89, 0.4);
}

.latency-indicator {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

/* Contenedor principal */
.main-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 20px;
  position: relative;
}

/* Tarjeta central de autenticacion */
.auth-card {
  width: 100%;
  max-width: 440px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.6);
  overflow: hidden;
}

.auth-header {
  padding: 24px 28px 20px;
  border-bottom: 1px solid var(--border-color);
  background-color: #161616;
}

.auth-headline {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-red);
  margin-bottom: 6px;
}

.auth-title {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.auth-desc {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* Selector de pestanas */
.auth-tabs {
  display: flex;
  background-color: #121212;
  border-bottom: 1px solid var(--border-color);
}

.tab-btn {
  flex: 1;
  padding: 12px 16px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.tab-btn:hover {
  color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.02);
}

.tab-btn.active {
  color: var(--text-primary);
  border-bottom-color: var(--accent-red);
  background-color: rgba(229, 9, 20, 0.04);
}

/* Cuerpo de autenticacion */
.auth-body {
  padding: 24px 28px;
}

/* Sistema de notificaciones tipo banner compacto */
.alert-banner {
  display: none;
  margin-bottom: 20px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-family: var(--font-mono);
  line-height: 1.4;
  letter-spacing: 0.02em;
}

.alert-banner.visible {
  display: block;
}

.alert-banner.error {
  background-color: var(--status-err-bg);
  border: 1px solid var(--accent-red);
  color: #ff6b72;
}

.alert-banner.success {
  background-color: var(--status-ok-bg);
  border: 1px solid rgba(46, 189, 89, 0.4);
  color: #6ee797;
}

/* Formularios */
.form-pane {
  display: none;
}

.form-pane.active {
  display: block;
}

.form-group {
  margin-bottom: 18px;
}

.form-group:last-of-type {
  margin-bottom: 22px;
}

.form-label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-hint {
  font-size: 10px;
  color: var(--text-muted);
  text-transform: none;
  font-weight: 400;
}

.input-wrapper {
  position: relative;
}

.form-input {
  width: 100%;
  height: 38px;
  padding: 0 12px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 13px;
  transition: var(--transition);
  outline: none;
}

.form-input::placeholder {
  color: var(--text-muted);
  font-size: 12px;
}

.form-input:hover {
  border-color: #383838;
}

.form-input:focus {
  border-color: var(--accent-red);
  background-color: var(--bg-input-focus);
  box-shadow: 0 0 0 1px var(--accent-red);
}

.form-input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Boton de accion */
.submit-btn {
  width: 100%;
  height: 40px;
  background-color: var(--accent-red);
  color: #ffffff;
  border: 1px solid var(--accent-red);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.submit-btn:hover {
  background-color: var(--accent-red-hover);
  border-color: var(--accent-red-hover);
}

.submit-btn:active {
  transform: translateY(1px);
}

.submit-btn:disabled {
  background-color: #2a2a2a;
  border-color: #2a2a2a;
  color: #666666;
  cursor: not-allowed;
  transform: none;
}

/* Pie de tarjeta */
.auth-footer {
  padding: 14px 28px;
  background-color: #111111;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

.security-badge {
  display: flex;
  align-items: center;
  gap: 6px;
}

.security-marker {
  width: 4px;
  height: 4px;
  background-color: var(--text-muted);
  display: inline-block;
}

/* Footer global */
.global-footer {
  height: 44px;
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

.footer-meta {
  display: flex;
  gap: 20px;
}

/* Responsividad */
@media (max-width: 600px) {
  .top-header {
    padding: 0 16px;
  }
  .brand-subtitle,
  .latency-indicator {
    display: none;
  }
  .main-wrapper {
    padding: 24px 14px;
  }
  .auth-header,
  .auth-body,
  .auth-footer {
    padding-left: 20px;
    padding-right: 20px;
  }
  .global-footer {
    padding: 0 16px;
    font-size: 10px;
  }
}