/* Modal Styles */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: var(--z-modal);
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  width: 90%;
  max-width: 600px;
  background: rgba(26, 26, 26, 0.98);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  transform: scale(0.9) translateY(20px);
  transition: transform var(--transition-base);
  overflow: hidden;
}

.modal-content-sm {
  max-width: 440px;
}

.modal.active .modal-content {
  transform: scale(1) translateY(0);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-color, #ffffff);
}

.modal-body {
  padding: var(--spacing-lg);
  max-height: 60vh;
  overflow-y: auto;
}

.modal-body::-webkit-scrollbar {
  width: 6px;
}

.modal-body::-webkit-scrollbar-track {
  background: transparent;
}

.modal-body::-webkit-scrollbar-thumb {
  background: var(--bg-secondary);
  border-radius: 3px;
}

.modal-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
}

.modal-actions {
  display: flex;
  gap: var(--spacing-sm);
}

/* Form Elements */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group:last-child {
  margin-bottom: 0;
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
}

.form-group input[type="text"],
.form-group input[type="url"],
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  color: var(--text-color, #ffffff);
  font-family: var(--font-primary);
  font-size: 14px;
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: #4a9eff;
  background: var(--bg-secondary);
}

/* Thumbnail Options */
.thumbnail-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}

.thumbnail-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-md);
  border: 2px solid var(--border-color);
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.thumbnail-option:hover {
  background: var(--bg-secondary);
  border-color: var(--border-color);
}

.thumbnail-option.active {
  background: rgba(74, 158, 255, 0.15);
  border-color: #4a9eff;
  color: #4a9eff;
}

.thumbnail-option img {
  width: 32px;
  height: 32px;
}

.thumbnail-option span {
  font-family: var(--font-primary);
}

/* PRO Badge */
.thumbnail-option::before {
  content: 'PRO';
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 2px 6px;
  background: #ef4444;
  border-radius: 4px;
  color: #ffffff;
  font-size: 10px;
  font-weight: 700;
  opacity: 0;
}

.thumbnail-option[data-type="custom"]::before,
.thumbnail-option[data-type="upload"]::before {
  opacity: 1;
}

/* Color Picker Specific Styles (Modern) */
.color-picker-modal .modal-content {
  width: 320px;
  background: var(--bg-color); /* Use theme bg */
  border: 1px solid var(--border-color);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.color-picker-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.03);
}

.color-picker-header h4 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-color);
}

.color-picker-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Saturation/Brightness Area */
.cp-saturation {
  position: relative;
  width: 100%;
  height: 180px;
  border-radius: 8px;
  background: red; /* Set by JS */
  cursor: grab;
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.1);
}

.cp-saturation:active {
  cursor: grabbing;
}

.cp-saturation-white {
  position: absolute;
  top:0; left:0; right:0; bottom:0;
  background: linear-gradient(to right, #fff, rgba(255,255,255,0));
}

.cp-saturation-black {
  position: absolute;
  top:0; left:0; right:0; bottom:0;
  background: linear-gradient(to top, #000, rgba(0,0,0,0));
}

.cp-saturation-cursor {
  position: absolute;
  width: 12px;
  height: 12px;
  border: 2px solid #fff;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0,0,0,0.5);
  transform: translate(-50%, -50%);
  pointer-events: none;
}

/* Controls Area (Sliders + Preview) */
.cp-controls {
  display: flex;
  gap: 12px;
  align-items: center;
}

.cp-sliders {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cp-hue, .cp-alpha {
  position: relative;
  width: 100%;
  height: 12px;
  border-radius: 6px;
  cursor: pointer;
}

.cp-hue {
  background: linear-gradient(to right, #f00 0%, #ff0 17%, #0f0 33%, #0ff 50%, #00f 67%, #f0f 83%, #f00 100%);
}

.cp-alpha {
  /* Checkboard pattern for transparency */
  background-image: 
    linear-gradient(45deg, #ccc 25%, transparent 25%), 
    linear-gradient(-45deg, #ccc 25%, transparent 25%), 
    linear-gradient(45deg, transparent 75%, #ccc 75%), 
    linear-gradient(-45deg, transparent 75%, #ccc 75%);
  background-size: 8px 8px;
  background-position: 0 0, 0 4px, 4px -4px, -4px 0px;
}

/* Actual gradient overlay for alpha */
.cp-alpha::after {
  content: "";
  position: absolute;
  top:0; left:0; right:0; bottom:0;
  border-radius: 6px;
  background: linear-gradient(to right, transparent, var(--cp-alpha-color, #fff));
}

.cp-hue-cursor, .cp-alpha-cursor {
  position: absolute;
  top: 50%;
  width: 14px;
  height: 14px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.cp-preview-wrapper {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  overflow: hidden;
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
  border: 2px solid var(--bg-secondary);
  background-image: 
    linear-gradient(45deg, #ccc 25%, transparent 25%), 
    linear-gradient(-45deg, #ccc 25%, transparent 25%), 
    linear-gradient(45deg, transparent 75%, #ccc 75%), 
    linear-gradient(-45deg, transparent 75%, #ccc 75%);
  background-size: 8px 8px;
}

.cp-preview {
  width: 100%;
  height: 100%;
}

/* Inputs */
.cp-inputs {
  display: flex;
  gap: 12px;
  padding-top: 4px;
}

.cp-input-group {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: relative;
}

.cp-input-group label {
  font-size: 11px;
  text-transform: uppercase;
  color: var(--text-secondary);
  font-weight: 600;
  letter-spacing: 0.5px;
}

.cp-input-group input {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 8px;
  color: var(--text-color);
  font-family: monospace;
  font-size: 13px;
  height: 32px;
}

.cp-input-group input:focus {
  outline: none;
  border-color: #4a9eff;
  background: rgba(74, 158, 255, 0.1);
}

.cp-input-group span {
  position: absolute;
  right: 8px;
  bottom: 8px;
  color: var(--text-secondary);
  font-size: 12px;
  pointer-events: none;
}

.cp-input-group input[type="number"] {
    padding-right: 20px;
}

/* Hide spin buttons */
.no-spin::-webkit-inner-spin-button, 
.no-spin::-webkit-outer-spin-button { 
  -webkit-appearance: none; 
  margin: 0; 
}
.no-spin {
    -moz-appearance: textfield;
}

/* Responsive */
@media (max-width: 600px) {
  .color-picker-modal .modal-content {
    width: 95%;
  }
}

/* Registration CAPTCHA Modal (Anti-Spam Verification) */
#register-captcha-modal {
  z-index: 10005;
}

#register-captcha-modal .modal-content-sm {
  max-width: 420px;
}

.captcha-card-body {
  padding: 24px 22px 18px 22px;
  text-align: center;
}

.captcha-question {
  font-size: 26px;
  font-weight: 700;
  color: #4a9eff;
  letter-spacing: 0.5px;
  margin: 0 0 16px 0;
  line-height: 1.2;
}

.captcha-options-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 12px 0 10px 0;
  width: 100%;
}

.captcha-option-btn {
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md, 12px);
  color: #ffffff;
  font-size: 24px;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast, 0.2s ease);
  user-select: none;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
  outline: none;
}

.captcha-option-btn:hover {
  background: rgba(74, 158, 255, 0.18);
  border-color: #4a9eff;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(74, 158, 255, 0.3);
  color: #4a9eff;
}

.captcha-option-btn:active {
  transform: translateY(0) scale(0.96);
}

.captcha-option-btn.correct {
  background: rgba(16, 185, 129, 0.25) !important;
  border-color: #10b981 !important;
  color: #10b981 !important;
  box-shadow: 0 0 16px rgba(16, 185, 129, 0.45) !important;
  transform: scale(1.05) !important;
}

.captcha-option-btn.wrong {
  background: rgba(239, 68, 68, 0.25) !important;
  border-color: #ef4444 !important;
  color: #ef4444 !important;
  box-shadow: 0 0 16px rgba(239, 68, 68, 0.45) !important;
  animation: captchaShake 0.4s ease;
}

@keyframes captchaShake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-6px); }
  40%, 80% { transform: translateX(6px); }
}

.captcha-error {
  display: none;
  color: #ef4444;
  font-size: 13px;
  margin-top: 10px;
  text-align: center;
  font-weight: 500;
  line-height: 1.3;
}

@media (max-width: 380px) {
  .captcha-options-grid {
    gap: 8px;
  }
  .captcha-option-btn {
    height: 52px;
    font-size: 20px;
  }
}