:root {
  /* Tipografía corporativa */
  --spectra-font-body: 'Poppins', 'Outfit', 'Segoe UI', sans-serif;
  --spectra-font-display: 'Outfit', 'Poppins', 'Segoe UI', sans-serif;
  --spectra-font-mono: 'Space Mono', 'Fira Code', 'Roboto Mono', monospace;

  /* Paleta cromática */
  --spectra-color-brand-300: #68a2ff;
  --spectra-color-brand-400: #3bb7ff;
  --spectra-color-brand-500: #00c6ff;
  --spectra-color-brand-600: #0094cc;
  --spectra-color-brand-700: #006ba8;

  --spectra-color-surface-1000: #03091c;
  --spectra-color-surface-900: #050d24;
  --spectra-color-surface-800: #0b1228;
  --spectra-color-surface-700: rgba(8, 16, 37, 0.9);
  --spectra-color-surface-glass: rgba(255, 255, 255, 0.08);
  --spectra-color-surface-glass-strong: rgba(255, 255, 255, 0.12);

  --spectra-color-text-primary: #f4fbff;
  --spectra-color-text-secondary: rgba(244, 251, 255, 0.72);
  --spectra-color-text-muted: rgba(244, 251, 255, 0.58);
  --spectra-color-text-inverse: #031024;
  --spectra-color-danger: #ff4d4d;
  --spectra-color-danger-dark: #d93535;

  /* Sombras y desenfoques */
  --spectra-shadow-soft: 0 12px 32px rgba(2, 12, 34, 0.45);
  --spectra-shadow-medium: 0 18px 45px rgba(0, 198, 255, 0.22);
  --spectra-shadow-strong: 0 24px 60px rgba(3, 9, 24, 0.58);
  --spectra-backdrop-strong: blur(16px);

  /* Gradientes corporativos */
  --spectra-gradient-galaxy: radial-gradient(
      120% 120% at 50% -10%,
      #1a3a7a 0%,
      #0e2252 35%,
      #09163b 100%
    );
  --spectra-gradient-aurora: linear-gradient(120deg, #141e30 0%, #4b1d58 100%);
  --spectra-gradient-horizon: linear-gradient(90deg, #00c6ff 0%, #0072ff 100%);
  --spectra-gradient-sunrise: linear-gradient(135deg, #ff8c00 0%, #ff5e00 100%);
  --spectra-gradient-immersive: linear-gradient(145deg, #0b1228 0%, #1b2f57 50%, #461c7d 100%);
}

/* Tipografía base */
body,
button,
input,
select,
textarea {
  font-family: var(--spectra-font-body);
  color: var(--spectra-color-text-primary);
}

code,
pre,
.kbd {
  font-family: var(--spectra-font-mono);
}

.spectra-font-body {
  font-family: var(--spectra-font-body);
}

.spectra-font-display,
.spectra-heading {
  font-family: var(--spectra-font-display);
  letter-spacing: 0.01em;
  font-weight: 600;
}

.spectra-heading--accent {
  color: var(--spectra-color-brand-500);
}

.spectra-text-secondary {
  color: var(--spectra-color-text-secondary);
}

.spectra-text-muted {
  color: var(--spectra-color-text-muted);
}

.spectra-text-inverse {
  color: var(--spectra-color-text-inverse);
}

/* Fondos corporativos */
.spectra-skin--galaxy {
  background: var(--spectra-gradient-galaxy);
}

.spectra-skin--aurora {
  background: var(--spectra-gradient-aurora);
}

.spectra-skin--immersive {
  background: var(--spectra-gradient-immersive);
}

body.spectra-layout.spectra-skin--galaxy,
body.spectra-layout.spectra-skin--aurora,
body.spectra-layout.spectra-skin--immersive {
  background-attachment: fixed;
  background-size: cover;
  background-repeat: no-repeat;
  color: var(--spectra-color-text-primary);
}

/* Componentes y utilidades */
.spectra-page {
  width: 100%;
  margin: 0 auto;
  padding: clamp(24px, 4vw, 48px) clamp(16px, 5vw, 64px);
  display: flex;
  flex-direction: column;
  gap: clamp(16px, 3vw, 32px);
}

.spectra-page--centered {
  text-align: center;
  align-items: center;
}

.spectra-page--narrow {
  max-width: 960px;
}

.spectra-page--immersive {
  min-height: calc(100vh - var(--spectra-header-height, 112px));
  justify-content: center;
}

.spectra-panel {
  background: var(--spectra-color-surface-glass);
  border-radius: 20px;
  padding: clamp(20px, 3vw, 32px);
  box-shadow: var(--spectra-shadow-soft);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.spectra-panel--frost {
  background: var(--spectra-color-surface-glass-strong);
  box-shadow: var(--spectra-shadow-medium);
}

.spectra-panel--contrast {
  background: rgba(3, 9, 24, 0.65);
  border: 1px solid rgba(0, 198, 255, 0.25);
}

.spectra-surface-card {
  background: rgba(255, 255, 255, 0.07);
  border-radius: 14px;
  padding: clamp(16px, 2.5vw, 28px);
  box-shadow: 0 12px 32px rgba(2, 12, 34, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.spectra-surface-card + .spectra-surface-card {
  margin-top: 18px;
}

.spectra-stack {
  display: flex;
  flex-direction: column;
  gap: clamp(12px, 2vw, 20px);
}

.spectra-stack--lg {
  gap: clamp(18px, 3vw, 32px);
}

.spectra-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 24px;
  font-size: 1rem;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
  font-weight: 600;
  text-decoration: none;
}

.spectra-button:hover {
  transform: translateY(-1px);
}

.spectra-button--primary {
  background: var(--spectra-gradient-horizon);
  color: var(--spectra-color-text-primary);
  box-shadow: 0 12px 28px rgba(0, 198, 255, 0.35);
}

.spectra-button--primary:hover {
  box-shadow: 0 18px 32px rgba(0, 198, 255, 0.45);
}

.spectra-button--danger {
  background: var(--spectra-color-danger);
  color: var(--spectra-color-text-primary);
  box-shadow: 0 12px 24px rgba(217, 53, 53, 0.35);
}

.spectra-button--danger:hover {
  background: var(--spectra-color-danger-dark);
}

.spectra-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--spectra-color-text-secondary);
  font-size: 0.9rem;
}

/* Modificadores para escenas inmersivas */
.spectra-scene {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: clamp(16px, 3vw, 28px);
  color: var(--spectra-color-text-primary);
}

.spectra-scene--immersive {
  padding: clamp(24px, 5vw, 48px);
  background: rgba(4, 12, 32, 0.35);
  border-radius: 24px;
  backdrop-filter: var(--spectra-backdrop-strong);
  box-shadow: var(--spectra-shadow-strong);
}

.spectra-scene--night {
  background: var(--spectra-gradient-immersive);
}

.spectra-scene__layer {
  border-radius: inherit;
  padding: inherit;
}

/* Formularios y campos */
.spectra-field {
  width: 100%;
  padding: 14px 18px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(3, 9, 24, 0.65);
  color: var(--spectra-color-text-primary);
  font-size: 1rem;
  transition: border 0.3s ease, box-shadow 0.3s ease;
}

.spectra-field:focus {
  outline: none;
  border-color: rgba(0, 198, 255, 0.65);
  box-shadow: 0 0 0 3px rgba(0, 198, 255, 0.2);
}

.spectra-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

@media (max-width: 680px) {
  .spectra-page {
    padding: clamp(16px, 6vw, 28px);
  }

  .spectra-panel,
  .spectra-surface-card {
    padding: clamp(16px, 5vw, 24px);
  }

  .spectra-button {
    width: 100%;
  }
}