/*
 * NotaryChain — Componentes
 * BEM: .bloque__elemento--modificador
 * Cada componente es autocontenido; no depende de contexto externo.
 */

/* ============================================================
   BOTONES
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  border: none;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s;
  padding: 0.75rem 1.75rem;
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(45deg, var(--accent-primary), var(--accent-secondary));
  color: #000;
  box-shadow: 0 10px 20px -10px var(--accent-primary);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 30px -10px var(--accent-primary);
}

.btn--ghost {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

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

.btn--outline {
  background: none;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: var(--space-xs) var(--space-sm);
}

.btn--outline:hover {
  border-color: var(--accent-primary);
  box-shadow: var(--glow);
}

.btn--sm {
  padding: 0.4rem 1rem;
  font-size: 0.85rem;
}

.btn--full {
  width: 100%;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

.btn--loading::after {
  content: '';
  width: 14px;
  height: 14px;
  border: 2px solid rgba(0, 0, 0, 0.3);
  border-top-color: #000;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

/* ============================================================
   CARD
   ============================================================ */
.card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), transform var(--transition);
}

.card:hover {
  border-color: var(--accent-primary);
  transform: translateY(-5px);
}

.card__icon {
  color: var(--accent-primary);
}

.card__title {
  margin: var(--space-md) 0 var(--space-sm);
  font-size: 1.5rem;
}

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

.card__hash {
  font-family: monospace;
  font-size: 0.9em;
  cursor: help;
  border-bottom: 1px dashed var(--border-color);
}

/* ============================================================
   DROP ZONE
   ============================================================ */
.drop-zone {
  margin: var(--space-2xl) auto;
  max-width: 800px;
  min-height: 300px;
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  background-color: var(--bg-glass);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  transition: all var(--transition);
  cursor: pointer;
  padding: var(--space-xl);
  text-align: center;
}

.drop-zone:hover,
.drop-zone--active {
  border-color: var(--accent-primary);
  background-color: rgba(0, 255, 204, 0.02);
}

.drop-zone--success {
  border-style: solid;
  border-color: var(--accent-primary);
}

.drop-zone__icon {
  color: var(--accent-primary);
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-xs);
}

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

.drop-zone > *:not(.drop-zone__actions) {
  pointer-events: none;
}

.drop-zone__actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
  flex-wrap: wrap;
  justify-content: center;
  pointer-events: auto;
}

/* ============================================================
   HASH DISPLAY
   ============================================================ */
.hash-display {
  background: var(--bg-secondary);
  padding: var(--space-sm);
  border-radius: var(--radius-md);
  font-family: monospace;
  font-size: 0.8rem;
  word-break: break-all;
  color: var(--text-secondary);
  margin: var(--space-sm) 0;
  width: 100%;
  max-width: 600px;
}

/* ============================================================
   BADGE
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

.badge--verified {
  background: rgba(0, 255, 204, 0.1);
  color: var(--accent-primary);
}

.badge--pending {
  background: rgba(14, 165, 233, 0.1);
  color: var(--accent-secondary);
}

/* ============================================================
   TOAST
   ============================================================ */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  padding: 1rem 1.5rem;
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow);
  z-index: 300;
  animation: fadeInUp 0.3s ease;
  max-width: 360px;
  font-weight: 500;
}

.toast--success { border-color: var(--accent-primary); }
.toast--error   { border-color: var(--error); color: var(--error); }

/* ============================================================
   MODAL
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 150;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeInUp 0.2s ease;
}

.modal-overlay--hidden {
  display: none;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  width: 100%;
  max-width: 440px;
  position: relative;
}

.modal__close {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--space-xs);
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}

.modal__close:hover { color: var(--text-primary); }

.modal__title {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: var(--space-xs);
}

.modal__subtitle {
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

/* ============================================================
   FORMULARIO
   ============================================================ */
.form__group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: var(--space-sm);
}

.form__label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form__input {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  font-size: 1rem;
  font-family: var(--font-main);
  transition: border-color var(--transition);
  width: 100%;
}

.form__input:focus {
  outline: none;
  border-color: var(--accent-primary);
}

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

.form__error {
  color: var(--error);
  font-size: 0.875rem;
  min-height: 1.2em;
}

.form__switch {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-top: var(--space-sm);
}

.form__switch-link {
  color: var(--accent-primary);
  cursor: pointer;
  font-weight: 600;
}

.form__switch-link:hover { text-decoration: underline; }