/* ============================================================
   BridgeConnect — COMPONENTS
   Versiune: 1.0
   Descriere: Componente UI reutilizabile (butoane, carduri,
              forms, badges, alerts, modals).
   ============================================================ */

/* ============================================
   BUTOANE
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  line-height: 1;
  letter-spacing: var(--tracking-wide);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-default);
  text-decoration: none;
  white-space: nowrap;
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Marimi */
.btn-sm  { padding: var(--space-2) var(--space-4); font-size: var(--text-sm); }
.btn-lg  { padding: var(--space-4) var(--space-8); font-size: var(--text-lg); }
.btn-xl  { padding: var(--space-5) var(--space-10); font-size: var(--text-xl); }

/* Variante */
.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.btn-accent {
  background: var(--gradient-accent);
  color: var(--color-primary-700);
  box-shadow: var(--shadow-md);
}
.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary-500);
  border-color: var(--color-primary-500);
}
.btn-outline:hover {
  background: var(--color-primary-500);
  color: var(--color-white);
}

.btn-outline-white {
  background: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}
.btn-outline-white:hover {
  background: var(--color-white);
  color: var(--color-primary-500);
}

.btn-ghost {
  background: transparent;
  color: var(--color-primary-500);
}
.btn-ghost:hover {
  background: var(--color-primary-50);
}

.btn-danger {
  background: var(--color-danger);
  color: var(--color-white);
}
.btn-danger:hover {
  background: #DC2626;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Iconita in interior */
.btn-icon-only {
  padding: var(--space-3);
  aspect-ratio: 1;
}

/* Efect "shimmer" la hover (premium) */
.btn-shimmer::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left var(--duration-slow) var(--ease-out);
}
.btn-shimmer:hover::before {
  left: 100%;
}

/* ============================================
   CARDURI
   ============================================ */
.card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: all var(--duration-normal) var(--ease-default);
  border: 1px solid var(--color-gray-100);
}

.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary-200);
}

.card-elevated {
  box-shadow: var(--shadow-lg);
}

.card-glass {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.card-dark {
  background: var(--color-primary-700);
  color: var(--color-white);
  border-color: var(--color-primary-600);
}
.card-dark h1, .card-dark h2, .card-dark h3, .card-dark h4, .card-dark h5, .card-dark h6 {
  color: var(--color-white);
}
.card-dark p {
  color: var(--color-primary-100);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-gray-100);
}

.card-title {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-primary-500);
}

.card-body {
  color: var(--color-gray-700);
  line-height: var(--leading-relaxed);
}

.card-footer {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-gray-100);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
}

/* ============================================
   FORMS
   ============================================ */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-gray-700);
  letter-spacing: var(--tracking-wide);
}

.form-label-required::after {
  content: ' *';
  color: var(--color-danger);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-gray-900);
  background: var(--color-white);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  transition: all var(--duration-fast) var(--ease-default);
  outline: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 4px rgba(11, 61, 92, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-gray-400);
}

.form-input:disabled {
  background: var(--color-gray-50);
  cursor: not-allowed;
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
  line-height: var(--leading-relaxed);
}

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748B' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-10);
}

.form-help {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.form-error {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-danger);
  font-weight: var(--font-medium);
}

.form-input.has-error,
.form-textarea.has-error,
.form-select.has-error {
  border-color: var(--color-danger);
}

/* Checkbox + Radio custom */
.form-check {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
  user-select: none;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  width: 20px;
  height: 20px;
  accent-color: var(--color-primary-500);
  cursor: pointer;
}

.form-check-label {
  font-size: var(--text-base);
  color: var(--color-gray-700);
}

/* Input with icon */
.input-group {
  position: relative;
}
.input-group .form-input {
  padding-left: var(--space-12);
}
.input-group-icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-gray-400);
  pointer-events: none;
}

/* ============================================
   BADGES / CHIPS
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-full);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

.badge-primary  { background: var(--color-primary-50); color: var(--color-primary-700); }
.badge-accent   { background: var(--color-accent-50); color: var(--color-accent-700); }
.badge-success  { background: var(--color-success-bg); color: var(--color-success); }
.badge-warning  { background: var(--color-warning-bg); color: var(--color-warning); }
.badge-danger   { background: var(--color-danger-bg); color: var(--color-danger); }
.badge-info     { background: var(--color-info-bg); color: var(--color-info); }
.badge-neutral  { background: var(--color-gray-100); color: var(--color-gray-700); }

/* ============================================
   ALERTS
   ============================================ */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-lg);
  border-left: 4px solid;
  margin-bottom: var(--space-4);
}

.alert-success { background: var(--color-success-bg); border-color: var(--color-success); color: #065F46; }
.alert-warning { background: var(--color-warning-bg); border-color: var(--color-warning); color: #92400E; }
.alert-danger  { background: var(--color-danger-bg); border-color: var(--color-danger); color: #991B1B; }
.alert-info    { background: var(--color-info-bg); border-color: var(--color-info); color: #1E40AF; }

.alert-icon { flex-shrink: 0; margin-top: 2px; }
.alert-content { flex: 1; }
.alert-title { font-weight: var(--font-semibold); margin-bottom: var(--space-1); }
.alert-message { font-size: var(--text-sm); }

/* ============================================
   MODALS / OVERLAYS
   ============================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(11, 61, 92, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) var(--ease-default);
}

.modal-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  width: 100%;
  max-width: 500px;
  box-shadow: var(--shadow-2xl);
  transform: scale(0.9) translateY(20px);
  transition: transform var(--duration-normal) var(--ease-bounce);
}

.modal-overlay.is-open .modal {
  transform: scale(1) translateY(0);
}

.modal-lg { max-width: 800px; }
.modal-xl { max-width: 1100px; }

/* ============================================
   DIVIDER
   ============================================ */
.divider {
  height: 1px;
  background: var(--color-gray-200);
  margin: var(--space-6) 0;
  border: none;
}

.divider-vertical {
  width: 1px;
  height: auto;
  align-self: stretch;
  margin: 0 var(--space-6);
}

/* ============================================
   AVATAR
   ============================================ */
.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  color: var(--color-white);
  font-weight: var(--font-semibold);
  overflow: hidden;
}

.avatar-sm { width: 32px; height: 32px; font-size: var(--text-sm); }
.avatar-lg { width: 56px; height: 56px; font-size: var(--text-lg); }
.avatar-xl { width: 80px; height: 80px; font-size: var(--text-2xl); }

/* ============================================
   LOADING / SPINNERS
   ============================================ */
.spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid var(--color-gray-200);
  border-top-color: var(--color-primary-500);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.skeleton {
  background: linear-gradient(90deg, var(--color-gray-100) 25%, var(--color-gray-200) 50%, var(--color-gray-100) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ============================================
   ANIMATIONS UTILITY
   ============================================ */
.fade-in {
  animation: fadeIn var(--duration-slow) var(--ease-out);
}

.slide-up {
  animation: slideUp var(--duration-slow) var(--ease-out);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================
   RESPONSIVE BREAKPOINTS — Utility
   ============================================ */
@media (max-width: 768px) {
  .container {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }

  .btn-xl { padding: var(--space-4) var(--space-6); font-size: var(--text-lg); }
}