/* ==========================================================================
   COMPONENTS.CSS - Reusable UI Components
   Botões, Inputs, Cards, Modais - Dark Glassmorphism
   ========================================================================== */

/* -- Buttons -------------------------------------------------------------- */
.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: 600;
  line-height: 1;
  color: var(--color-text-primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition:
    transform var(--duration-fast) var(--ease-smooth),
    box-shadow var(--duration-normal) var(--ease-smooth),
    opacity var(--duration-fast) var(--ease-smooth);
  -webkit-user-select: none;
  user-select: none;
}

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

.btn:active {
  transform: translateY(0) scale(0.98);
}

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

/* Primary: Brand gradient */
.btn-primary {
  background: var(--gradient-brand-primary);
  background-size: 200% 200%;
  color: #fff;
  box-shadow: var(--shadow-md), 0 0 20px rgba(80, 23, 184, 0.2);
}

.btn-primary:hover {
  box-shadow: var(--shadow-lg), var(--glow-purple);
  animation: gradient-shift 3s ease infinite;
}

/* Full gradient CTA */
.btn-gradient {
  background: var(--gradient-brand-full);
  background-size: 300% 300%;
  color: #fff;
  box-shadow: var(--shadow-md);
}

.btn-gradient:hover {
  animation: gradient-shift 3s ease infinite;
  box-shadow: var(--shadow-lg), var(--glow-magenta);
}

/* Ghost / Outlined */
.btn-ghost {
  background: transparent;
  border: 1px solid var(--color-border-default);
  color: var(--color-text-secondary);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--color-brand-purple);
  color: var(--color-text-primary);
}

/* Size variants */
.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
  border-radius: var(--radius-md);
}

.btn-block {
  width: 100%;
}

/* Loading spinner inside button */
.btn .spinner {
  display: none;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.btn.is-loading .spinner {
  display: inline-block;
}

.btn.is-loading .btn-text {
  opacity: 0;
  width: 0;
  overflow: hidden;
}

/* -- Form Inputs ---------------------------------------------------------- */
.form-group {
  margin-bottom: var(--space-5);
  position: relative;
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
  transition: color var(--duration-fast) var(--ease-smooth);
}

.form-group:focus-within .form-label {
  color: var(--color-brand-purple-light);
}

.form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text-primary);
  background: var(--color-bg-input);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  outline: none;
  transition:
    border-color var(--duration-normal) var(--ease-smooth),
    box-shadow var(--duration-normal) var(--ease-smooth),
    background var(--duration-normal) var(--ease-smooth);
}

.form-input::placeholder {
  color: var(--color-text-muted);
}

.form-input:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.form-input:focus {
  border-color: var(--color-brand-purple);
  box-shadow: var(--glow-input-focus);
  background: rgba(14, 14, 30, 0.95);
}

/* Input with icon */
.input-icon-wrapper {
  position: relative;
}

.input-icon-wrapper .form-input {
  padding-left: calc(var(--space-4) + 24px);
}

.input-icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--color-text-muted);
  pointer-events: none;
  transition: color var(--duration-normal) var(--ease-smooth);
}

.input-icon-wrapper:focus-within .input-icon {
  color: var(--color-brand-purple-light);
}

/* Password toggle */
.input-toggle {
  position: absolute;
  right: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: var(--space-1);
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast) var(--ease-smooth);
}

.input-toggle:hover {
  color: var(--color-text-secondary);
}

/* Error state */
.form-group.has-error .form-input {
  border-color: var(--color-brand-magenta);
  box-shadow: 0 0 0 3px rgba(190, 22, 97, 0.15);
}

.form-group.has-error .form-label {
  color: var(--color-brand-magenta-light);
}

.form-error {
  display: none;
  font-size: var(--text-xs);
  color: var(--color-brand-magenta-light);
  margin-top: var(--space-1);
  padding-left: var(--space-1);
}

.form-group.has-error .form-error {
  display: block;
  animation: fadeInUp 200ms var(--ease-smooth) both;
}

/* -- Glass Card ----------------------------------------------------------- */
.card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
  padding: var(--space-8);
}

.card-sm { padding: var(--space-6); }
.card-lg { padding: var(--space-10); }

/* -- Divider -------------------------------------------------------------- */
.divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin: var(--space-6) 0;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border-subtle);
}

/* -- Brand Logo ----------------------------------------------------------- */
.brand-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text-primary);
}

.brand-logo img {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.brand-logo-lg img {
  height: 56px;
}

/* -- Toast / Notification ------------------------------------------------- */
.toast {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-toast);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  animation: fadeInUp var(--duration-slow) var(--ease-smooth) both;
  max-width: 400px;
}

.toast-success {
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: #86efac;
}

.toast-error {
  background: rgba(190, 22, 97, 0.15);
  border: 1px solid rgba(190, 22, 97, 0.3);
  color: var(--color-brand-magenta-light);
}

/* -- Link Styles ---------------------------------------------------------- */
.link {
  color: var(--color-brand-purple-light);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--duration-fast) var(--ease-smooth);
}

.link:hover {
  color: var(--color-brand-amber);
  text-decoration: underline;
}

/* -- Checkbox Custom ------------------------------------------------------ */
.checkbox-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.checkbox-wrapper input[type="checkbox"] {
  appearance: none;
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--color-border-default);
  border-radius: 4px;
  background: var(--color-bg-input);
  cursor: pointer;
  transition:
    background var(--duration-fast) var(--ease-smooth),
    border-color var(--duration-fast) var(--ease-smooth);
  position: relative;
  flex-shrink: 0;
}

.checkbox-wrapper input[type="checkbox"]:checked {
  background: var(--color-brand-purple);
  border-color: var(--color-brand-purple);
}

.checkbox-wrapper input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 2px;
  width: 5px;
  height: 9px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}