/* Components styles */
/* Theme Switcher */
#theme-switcher {
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  margin: 0;
  background: transparent;
  border: none;
  padding: var(--spacing-sm);
  min-width: 44px;
  min-height: 44px;
  outline: none;
  transform: none;
  box-shadow: none;
  color: var(--font-color-2);
  transition: color var(--transition-fast);
}

#theme-switcher:hover {
  background: transparent;
  color: var(--link-hover-color);
}

#theme-switcher:focus-visible {
  outline: 2px solid var(--focus-color);
  outline-offset: 2px;
  border-radius: var(--radius-control);
}

#theme-switcher .icon {
  font-size: 1.5rem;
}

.icon-light {
  display: flex;
}

.icon-dark {
  display: none;
}

[data-theme="dark"] .icon-light {
  display: none;
}

[data-theme="dark"] .icon-dark {
  display: flex;
}

/* Buttons */
.button,
button,
button[type="submit"] {
  margin: var(--spacing-md) var(--spacing-xs) var(--spacing-md) 0;
  font-weight: 600;
  text-align: center;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, var(--button-bg-color), var(--button-hover-bg-color));
  color: var(--button-font-color);
  padding: 1rem 1.5rem;
  border: none;
  border-radius: var(--radius-control);
  cursor: pointer;
  font-size: 1rem;
  font-family: var(--font-family);
  transition: all 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 8px color-mix(in srgb, var(--color-blue-1) 15%, transparent);
  transform: translateY(0);
}

.button:focus-visible,
button:focus-visible,
button[type="submit"]:focus-visible {
  outline: 2px solid var(--focus-color);
  outline-offset: 2px;
}

.button:hover,
button:hover {
  background: linear-gradient(135deg, var(--button-hover-bg-color), var(--button-active-bg-color));
  transform: translateY(-2px);
  box-shadow: 0 4px 16px color-mix(in srgb, var(--color-blue-1) 25%, transparent);
}

.button:active,
button:active {
  background: linear-gradient(135deg, var(--button-active-bg-color), var(--button-hover-bg-color));
  color: var(--button-font-color);
  transform: translateY(0);
  box-shadow: 0 2px 8px color-mix(in srgb, var(--color-blue-1) 20%, transparent);
}

.button[disabled],
button[disabled],
button[disabled]:hover {
  background: var(--button-disabled-bg-color);
  color: var(--button-disabled-font-color);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* File Upload Label */
#file-upload-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin: 0;
  padding: 1rem 1.5rem;
  background: linear-gradient(135deg, var(--color-blue-1), var(--color-blue-2));
  color: var(--button-font-color);
  border-radius: var(--radius-control);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 2px 8px color-mix(in srgb, var(--color-blue-1) 15%, transparent);
}

#file-upload-label .icon {
  font-size: 1.2rem;
}

#file-upload-label:hover {
  background: linear-gradient(135deg, var(--color-blue-2), var(--color-blue-3));
}

#file-upload-label:active {
  background: var(--button-active-bg-color);
  box-shadow: 0 2px 8px color-mix(in srgb, var(--color-blue-1) 20%, transparent);
}

#file-upload-label:has(+ #file-input:focus-visible) {
  outline: 2px solid var(--focus-color);
  outline-offset: 2px;
}

/* Hide file input but keep it accessible */
#file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Toasts */
.toasts {
  position: fixed;
  z-index: 10000;
  right: calc(16px + env(safe-area-inset-right, 0px));
  bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  display: grid;
  gap: 8px;
  width: min(380px, calc(100vw - 32px - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px)));
  pointer-events: none;
}

.toast {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 12px;
  padding: 14px 10px 14px 16px;
  color: var(--font-color);
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--color-blue-1);
  border-radius: var(--radius-panel);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--color-black) 20%, transparent);
  pointer-events: auto;
  animation: toast-in 180ms ease-out;
}

.toast-success { border-left-color: var(--color-green-text); }
.toast-error { border-left-color: var(--color-red-text); }
.toast-warning { border-left-color: var(--color-amber-text); }
.toast > .icon { font-size: 20px; color: var(--color-blue-text); }
.toast-success > .icon { color: var(--color-green-text); }
.toast-error > .icon { color: var(--color-red-text); }
.toast-warning > .icon { color: var(--color-amber-text); }
.toast p { margin: 0; padding-top: 1px; font-size: 0.9rem; line-height: 1.4; overflow-wrap: anywhere; }
.toast-close {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin: -12px 0;
  padding: 0;
  color: var(--font-color-2);
  background: none;
  border: 0;
  border-radius: var(--radius-control);
  cursor: pointer;
}
.toast-close .icon { font-size: 18px; }
.toast-close:hover { color: var(--font-color); }
.toast-close:focus-visible { outline: 2px solid var(--focus-color); outline-offset: 2px; }
.toast-exiting { opacity: 0; transition: opacity 180ms ease; }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }
@media (prefers-reduced-motion: reduce) {
  /* Override component motion for the operating system setting. */
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

.tool-shell {
  width: 100%;
}

.tool-surface {
  background: color-mix(in srgb, var(--surface-color) 94%, transparent);
  border: 1px solid var(--card-shell-border);
  border-radius: var(--radius-surface);
  padding: 1.5rem;
  box-shadow: 0 12px 36px color-mix(in srgb, var(--color-ink) 6%, transparent);
}

[data-theme="dark"] .tool-surface {
  box-shadow: 0 12px 36px color-mix(in srgb, var(--color-black) 20%, transparent);
}

.tool-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.tool-actions .button {
  margin: 0;
}

.footer-primary,
.footer-secondary {
  margin: 0;
  text-wrap: balance;
}

.footer-primary {
  margin: 0;
  text-wrap: balance;
}

/* Inline icon stays attached to the first line when the text wraps. */
.footer-primary .footer-icon {
  display: inline-block;
  margin-right: 0.4rem;
  vertical-align: -2px;
}

.footer-secondary {
  margin: 0;
  line-height: 1.55;
}

.footer-version {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.55;
  color: var(--font-color-footer);
}

.footer-icon {
  width: 15px;
  height: 15px;
  flex: 0 0 auto;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.25rem 0.75rem;
  margin: 0;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 44px;
  padding: 0.35rem 0.5rem;
  border-radius: var(--radius-control);
  text-decoration: none;
}

footer a:focus-visible {
  outline: 2px solid var(--focus-color);
  outline-offset: 2px;
}

footer a:hover,
footer a:focus-visible {
  color: var(--link-hover-color);
}


/* Output Filename */
#output-filename-container {
    margin: 18px 0 8px;
}

#output-filename-container label {
    display: block;
    font-size: 0.8125rem;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--font-color-2);
}

.output-filename-row {
    display: flex;
    align-items: stretch;
    width: 100%;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-control);
    background: var(--form-input-bg-color);
}

.output-filename-row:hover {
    border-color: var(--color-blue-1);
}

.output-filename-row:has(#output-filename:focus-visible) {
    outline: 2px solid var(--focus-color);
    outline-offset: 2px;
}

.output-filename-row:has(#output-filename:disabled) {
    background: var(--button-disabled-bg-color);
}

.output-filename-row:has(#output-filename:disabled) .output-filename-ext {
    background: var(--button-disabled-bg-color);
    color: var(--button-disabled-font-color);
}

#output-filename {
    flex: 1;
    min-width: 0;
    padding: 0 0.75rem;
    border: 0;
    border-radius: var(--radius-control) 0 0 var(--radius-control);
    font-size: 1rem;
    background: var(--form-input-bg-color);
}

#output-filename:focus-visible {
    outline: none;
}

#output-filename:disabled {
    background: var(--button-disabled-bg-color);
    color: var(--button-disabled-font-color);
}

.output-filename-ext {
    display: inline-flex;
    align-items: center;
    font-size: 0.875rem;
    color: var(--font-color);
    background: var(--surface2-color);
    border-left: 1px solid var(--border-color);
    border-radius: 0 var(--radius-control) var(--radius-control) 0;
    padding: 0 0.75rem;
}

/* Progress Bar */
#progress-container {
  display: none;
  margin: 20px 0 10px 0;
}

.button.danger {
    background: linear-gradient(135deg, var(--color-red-1), var(--color-red-2));
    color: var(--color-white);
    border: none;
    box-shadow: 0 2px 8px color-mix(in srgb, var(--color-red-1) 18%, transparent);
}

.button.danger:hover {
    background: linear-gradient(135deg, var(--color-red-1), var(--color-red-2));
    box-shadow: 0 4px 16px color-mix(in srgb, var(--color-red-1) 28%, transparent);
}

#progress-bar {
  width: 0;
  height: 20px;
  background-color: var(--color-blue-1);
  transition: width var(--transition-normal);
}

/* Spinner */
.spinner {
  border: 4px solid color-mix(in srgb, var(--color-white) 30%, transparent);
  border-top: 4px solid var(--color-blue-1);
  border-radius: var(--radius-round);
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 999;
  display: none;
  will-change: transform;
}

.spinner::after {
  content: 'Loading...';
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ====================================
 * 5. FORM ELEMENTS
 * Form inputs and controls
 * ==================================== */

form {
  margin: 0 auto;
  max-width: 720px;
}

input[type="text"],
input[type="email"],
input[type="number"],
textarea {
  color: var(--form-input-font-color);
  display: block;
  background-color: var(--form-input-bg-color);
  border: var(--form-input-border);
  border-radius: var(--radius-control);
  padding: 0.9375rem 1rem;
  font-size: 1rem;
  transition: var(--transition-fast);
}

input::placeholder,
textarea::placeholder {
  color: var(--form-placeholder-color);
  opacity: 1;
}

input[type="color"] {
  width: 60px;
  height: 44px;
  padding: 0;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-control);
  background-color: var(--bg-color);
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  overflow: hidden;
}

input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
  border: none;
  border-radius: var(--radius-control);
}

input[type="color"]::-webkit-color-swatch {
  border: none;
  border-radius: var(--radius-control);
}

input[type="color"]::-moz-color-swatch {
  border: none;
  border-radius: var(--radius-control);
}

/* iOS Safari specific fixes for color input */
@supports (-webkit-touch-callout: none) {
  input[type="color"] {
    -webkit-appearance: none;
    border-radius: var(--radius-control) !important;
    width: 60px;
    height: 40px;
    border: 2px solid var(--border-color);
    outline: none;
    background-color: transparent;
  }
  
  input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
    border: none;
    border-radius: var(--radius-control) !important;
    width: 100%;
    height: 100%;
  }
  
  input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: var(--radius-control) !important;
    width: 100%;
    height: 100%;
  }
}

/* Additional iOS fixes using user agent detection */
@media screen and (-webkit-min-device-pixel-ratio: 2) and (max-device-width: 812px) {
  input[type="color"] {
    -webkit-appearance: none !important;
    appearance: none !important;
    border-radius: var(--radius-control) !important;
    overflow: hidden;
  }
  
  input[type="color"]::-webkit-color-swatch-wrapper {
    border-radius: var(--radius-control) !important;
  }
  
  input[type="color"]::-webkit-color-swatch {
    border-radius: var(--radius-control) !important;
  }
}

input[type="text"]:focus-visible,
input[type="email"]:focus-visible,
input[type="number"]:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--focus-color);
  outline-offset: 2px;
}

input[type="color"]:focus-visible {
  outline: 2px solid var(--focus-color);
  outline-offset: 2px;
}

textarea {
  margin: 10px 0;
  resize: none;
}

select {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  color: var(--form-input-font-color);
  width: 100%;
  background-color: var(--form-input-bg-color);
  border: var(--form-input-border);
  padding: 0.8rem 1rem;
  font-size: 1rem;
  border-radius: var(--radius-control);
}

select::-ms-expand {
  display: none;
}

/* Toggle Switches */
.toggle-item {
  display: flex;
  align-items: center;
}

.toggle-item label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-left: 10px; 
  cursor: pointer;
}

.switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 28px;
  flex-shrink: 0;
  margin-right: 10px;
  transition: var(--transition-normal);
}

.switch:hover {
  transform: scale(1.05);
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: var(--border-color);
  transition: var(--transition-normal);
  border-radius: var(--radius-round);
}

.slider:before {
  position: absolute;
  content: "";
  height: 22px;
  width: 22px;
  left: 3px;
  bottom: 3px;
  background-color: var(--color-white);
  transition: var(--transition-normal);
  border-radius: var(--radius-round);
}

input:checked + .slider {
  background-color: var(--color-blue-1);
}

input:focus-visible + .slider {
  outline: 2px solid var(--focus-color);
  outline-offset: 2px;
}

input:checked + .slider:before {
  transform: translateX(20px);
}

.toggle-description {
  color: var(--font-color-2);
  font-size: 0.8rem;
  line-height: 1.2;
}

.toggle-item--disabled {
  pointer-events: none;
  user-select: none;
}