/* ==========================================================================
   NEBULON — Componentes
   ========================================================================== */

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--fs-small);
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  transition: transform var(--dur-fast) var(--ease-out), border-color var(--dur-base), box-shadow var(--dur-base);
  min-height: 48px;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--gradient-nebula);
  color: #08070f;
}

.btn-primary:hover {
  box-shadow: 0 10px 30px -8px rgba(110, 91, 255, 0.55);
}

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text-primary);
}

.btn-ghost:hover {
  border-color: var(--accent-violet);
}

.btn-block {
  width: 100%;
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding-block: var(--space-4);
  transition: background var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out), padding var(--dur-base) var(--ease-out);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background: rgba(5, 6, 11, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--border-soft);
  padding-block: var(--space-3);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gradient-nebula);
  flex-shrink: 0;
}

.nav-desktop {
  display: none;
}

.nav-desktop ul {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-desktop a {
  font-size: var(--fs-small);
  color: var(--text-muted);
  transition: color var(--dur-fast);
  position: relative;
}

.nav-desktop a:hover {
  color: var(--text-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-actions .btn-ghost {
  display: none;
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-base) var(--ease-out);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-mobile {
  position: fixed;
  inset: 0;
  top: 0;
  background: var(--bg-elevated);
  z-index: 99;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-6);
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}

.nav-mobile.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.nav-mobile ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-bottom: var(--space-7);
}

.nav-mobile a {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 600;
}

@media (min-width: 960px) {
  .nav-desktop {
    display: block;
  }
  .nav-toggle {
    display: none;
  }
  .nav-mobile {
    display: none;
  }
  .nav-actions .btn-ghost {
    display: inline-flex;
  }
}

/* ---------- Badges / eyebrow (usado con moderación, no en cada sección) ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-micro);
  color: var(--accent-cyan);
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.25);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  flex-shrink: 0;
}

/* ---------- Tarjetas ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  transition: border-color var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}

.card-index {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  color: var(--text-faint);
  display: block;
  margin-bottom: var(--space-4);
}

.card h3 {
  font-size: var(--fs-h3);
  margin-bottom: var(--space-3);
}

.card p {
  font-size: var(--fs-small);
}

/* ---------- Formulario ---------- */
.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.field label {
  font-size: var(--fs-small);
  color: var(--text-muted);
}

.field input,
.field select,
.field textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  color: var(--text-primary);
  font-size: var(--fs-body);
  transition: border-color var(--dur-fast);
  min-height: 48px;
}

.field textarea {
  min-height: 120px;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--accent-violet);
  outline: none;
  box-shadow: 0 0 0 3px rgba(110, 91, 255, 0.18);
}

.field.has-error input,
.field.has-error select,
.field.has-error textarea {
  border-color: #f87171;
}

.field-error {
  font-size: var(--fs-micro);
  color: #f87171;
  min-height: 1em;
}

.form-row {
  display: grid;
  gap: var(--space-5);
}

@media (min-width: 640px) {
  .form-row.cols-2 {
    grid-template-columns: 1fr 1fr;
  }
}

.form-status {
  margin-top: var(--space-4);
  font-size: var(--fs-small);
  display: none;
}

.form-status.is-visible {
  display: block;
}

.form-status.is-success {
  color: var(--success);
}

.form-status.is-error {
  color: #f87171;
}

/* ---------- Chip de tecnología ---------- */
.tech-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.55rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: var(--fs-small);
  background: var(--surface);
}

/* ---------- Honeypot anti-spam (oculto para humanos, visible para bots) ---------- */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ---------- Marcadores de placeholder (proyectos aún no reales) ---------- */
.placeholder-tag {
  display: inline-block;
  font-size: var(--fs-micro);
  color: var(--text-faint);
  border: 1px dashed var(--border);
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-full);
}