/* ========================================
   Component Styles
   ======================================== */

/* --- 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-family);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  line-height: 1;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
  position: relative;
  overflow: hidden;
}
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

.btn-primary {
  background: var(--accent-gradient);
  color: white;
  box-shadow: var(--shadow-glow-sm);
}
.btn-primary:hover:not(:disabled) {
  background: var(--accent-gradient-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}
.btn-secondary {
  background: var(--bg-glass-strong);
  color: var(--text-primary);
  border-color: var(--border-default);
}
.btn-secondary:hover:not(:disabled) {
  background: rgba(255,255,255,0.1);
  border-color: var(--border-hover);
}
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}
.btn-ghost:hover:not(:disabled) {
  background: var(--bg-glass);
  color: var(--text-primary);
}
.btn-danger {
  background: rgba(248,113,113,0.15);
  color: var(--color-error);
  border-color: rgba(248,113,113,0.2);
}
.btn-danger:hover:not(:disabled) { background: rgba(248,113,113,0.25); }
.btn-sm { padding: var(--space-2) var(--space-4); font-size: var(--text-xs); }
.btn-lg { padding: var(--space-4) var(--space-8); font-size: var(--text-base); border-radius: var(--radius-lg); }
.btn-icon { padding: var(--space-2); width: 36px; height: 36px; border-radius: var(--radius-md); }

/* --- Cards --- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all var(--transition-base);
}
.card:hover { border-color: var(--border-hover); }
.card-glass {
  background: var(--bg-glass);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  backdrop-filter: blur(20px);
}
.card-accent {
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-glow-sm);
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}
.card-title { font-size: var(--text-base); font-weight: var(--weight-semibold); color: var(--text-primary); }
.card-subtitle { font-size: var(--text-sm); color: var(--text-secondary); margin-top: var(--space-1); }

/* --- Form Inputs --- */
.form-group { display: flex; flex-direction: column; gap: var(--space-2); }
.form-label { font-size: var(--text-sm); font-weight: var(--weight-medium); color: var(--text-secondary); }
.form-label .required { color: var(--color-error); margin-left: var(--space-1); }

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-family);
  font-size: var(--text-sm);
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  outline: none;
}
.form-input:hover, .form-select:hover, .form-textarea:hover { border-color: var(--border-hover); }
.form-input:focus, .form-select:focus, .form-textarea:focus {
  background: var(--bg-input-focus);
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-primary-glow);
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--text-tertiary); }
.form-select {
  cursor: pointer; appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238b949e' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center; padding-right: 36px;
}
.form-select option { background: var(--bg-secondary); color: var(--text-primary); }
.form-textarea { min-height: 100px; resize: vertical; line-height: var(--leading-relaxed); }
.form-hint { font-size: var(--text-xs); color: var(--text-tertiary); }

/* Toggle */
.toggle-wrapper { display: flex; align-items: center; gap: var(--space-3); cursor: pointer; }
.toggle-input { display: none; }
.toggle-track {
  width: 44px; height: 24px; background: rgba(255,255,255,0.1);
  border-radius: var(--radius-full); position: relative; transition: background var(--transition-fast); flex-shrink: 0;
}
.toggle-track::after {
  content: ''; position: absolute; top: 3px; left: 3px; width: 18px; height: 18px;
  background: var(--text-secondary); border-radius: 50%; transition: all var(--transition-fast);
}
.toggle-input:checked + .toggle-track { background: var(--accent-primary); }
.toggle-input:checked + .toggle-track::after { transform: translateX(20px); background: white; }
.toggle-label { font-size: var(--text-sm); color: var(--text-secondary); }

/* Range */
.form-range {
  -webkit-appearance: none; width: 100%; height: 4px;
  background: rgba(255,255,255,0.1); border-radius: var(--radius-full); outline: none;
}
.form-range::-webkit-slider-thumb {
  -webkit-appearance: none; width: 18px; height: 18px; background: var(--accent-primary);
  border-radius: 50%; cursor: pointer; box-shadow: 0 0 10px var(--accent-primary-glow);
}

/* --- Tags --- */
.tag {
  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(--weight-medium);
  border-radius: var(--radius-full); background: var(--bg-glass-strong);
  color: var(--text-secondary); border: 1px solid var(--border-default); transition: all var(--transition-fast);
}
.tag-primary { background: rgba(124,92,252,0.15); color: var(--accent-primary); border-color: rgba(124,92,252,0.25); }
.tag-success { background: var(--color-success-bg); color: var(--color-success); border-color: rgba(52,211,153,0.2); }
.tag-warning { background: var(--color-warning-bg); color: var(--color-warning); border-color: rgba(251,191,36,0.2); }
.tag-error { background: var(--color-error-bg); color: var(--color-error); border-color: rgba(248,113,113,0.2); }
.tag-info { background: var(--color-info-bg); color: var(--color-info); border-color: rgba(96,165,250,0.2); }
.tag-remove {
  display: inline-flex; align-items: center; justify-content: center;
  width: 16px; height: 16px; border-radius: 50%; background: rgba(255,255,255,0.1);
  font-size: 10px; cursor: pointer; border: none; color: inherit; padding: 0; line-height: 1;
}
.tag-remove:hover { background: rgba(255,255,255,0.2); }

/* Tag Input */
.tag-input-wrapper {
  display: flex; flex-wrap: wrap; gap: var(--space-2); padding: var(--space-2) var(--space-3);
  background: var(--bg-input); border: 1px solid var(--border-default); border-radius: var(--radius-md);
  min-height: 42px; align-items: center; transition: all var(--transition-fast); cursor: text;
}
.tag-input-wrapper:focus-within {
  background: var(--bg-input-focus); border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-primary-glow);
}
.tag-input-field {
  border: none; outline: none; background: transparent; color: var(--text-primary);
  font-family: var(--font-family); font-size: var(--text-sm); flex: 1; min-width: 120px; padding: var(--space-1) 0;
}
.tag-input-field::placeholder { color: var(--text-tertiary); }