/* SnapStatic Image Tools — Dark theme, indigo accent, no gradients */

:root {
  --bg: #0f1117;
  --bg-surface: #181a23;
  --bg-surface-hover: #1e2130;
  --border: #2a2d3a;
  --text: #e4e4e7;
  --text-muted: #8b8d98;
  --accent: #6366f1;
  --accent-hover: #818cf8;
  --accent-muted: rgba(99, 102, 241, 0.15);
  --error: #ef4444;
  --success: #22c55e;
  --warning: #f59e0b;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow-inset: inset 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-inset-strong: inset 0 2px 6px rgba(0, 0, 0, 0.5);
}

/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Base */
html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 0.9375rem;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ========================================
   Layout
   ======================================== */

.container {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
  flex: 1;
}

/* ========================================
   Header
   ======================================== */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  max-width: 720px;
  margin: 0 auto;
  width: 100%;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}

.header-brand {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
  letter-spacing: -0.01em;
}

.header-domain {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-family: "SF Mono", "Fira Mono", Consolas, monospace;
}

/* ========================================
   Sections
   ======================================== */

.section {
  margin-bottom: 2.5rem;
}

.section-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.section-hint {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  line-height: 1.5;
}

/* ========================================
   Drop Zone
   ======================================== */

.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  background-color: var(--bg-surface);
  box-shadow: var(--shadow-inset);
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease;
  outline: none;
}

.dropzone:hover,
.dropzone:focus-visible {
  border-color: var(--accent);
  background-color: var(--bg-surface-hover);
}

.dropzone.dragover {
  border-color: var(--accent);
  background-color: var(--accent-muted);
  box-shadow: var(--shadow-inset-strong);
}

.dropzone-inner {
  pointer-events: none;
}

.dropzone-icon {
  font-size: 2rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  line-height: 1;
}

.dropzone-label {
  font-size: 0.9375rem;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.dropzone-link {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.dropzone.dragover .dropzone-link {
  color: var(--accent-hover);
}

.dropzone-hint {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ========================================
   File List
   ======================================== */

.file-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.625rem 0.875rem;
  box-shadow: var(--shadow-inset);
}

.file-info {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  min-width: 0;
}

.file-name {
  font-size: 0.875rem;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 40ch;
}

.file-size {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.file-remove {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1rem;
  padding: 0.25rem 0.375rem;
  border-radius: var(--radius);
  line-height: 1;
  transition: color 0.15s ease, background-color 0.15s ease;
  flex-shrink: 0;
  margin-left: 0.75rem;
}

.file-remove:hover {
  color: var(--error);
  background-color: rgba(239, 68, 68, 0.1);
}

/* ========================================
   Preset Picker
   ======================================== */

.preset-group {
  margin-bottom: 1.75rem;
}

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

.preset-group-title {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.preset-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.5rem;
}

.preset-item {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.625rem 0.75rem;
  cursor: pointer;
  box-shadow: var(--shadow-inset);
  transition: border-color 0.15s ease, background-color 0.15s ease;
  user-select: none;
}

.preset-item:hover {
  background-color: var(--bg-surface-hover);
  border-color: var(--accent);
}

.preset-checkbox {
  width: 1rem;
  height: 1rem;
  accent-color: var(--accent);
  flex-shrink: 0;
  cursor: pointer;
}

.preset-checkbox:checked + .preset-label {
  color: var(--text);
}

.preset-item:has(.preset-checkbox:checked) {
  border-color: var(--accent);
  background-color: var(--accent-muted);
}

.preset-label {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  min-width: 0;
}

.preset-name {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
}

.preset-size {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: "SF Mono", "Fira Mono", Consolas, monospace;
}

.preset-loading {
  color: var(--text-muted);
  font-size: 0.875rem;
  padding: 1rem;
  list-style: none;
}

.btn-remove-token {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.8rem;
  margin-left: auto;
}
.btn-remove-token:hover {
  color: var(--danger);
  border-color: var(--danger);
}

.token-expires {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Lock badge */
.lock-badge {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--warning);
  letter-spacing: 0;
  text-transform: none;
}

/* Custom preset */
.custom-preset-locked {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.125rem;
  box-shadow: var(--shadow-inset);
}

.locked-message {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 0.875rem;
}

.custom-preset-fields {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ========================================
   Output Config
   ======================================== */

.config-group {
  margin-bottom: 1.5rem;
}

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

.config-fieldset {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.125rem;
  background-color: var(--bg-surface);
  box-shadow: var(--shadow-inset);
}

.config-legend {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  padding: 0 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.format-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.format-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text);
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background-color: var(--bg);
  transition: border-color 0.15s ease, background-color 0.15s ease;
  user-select: none;
}

.format-option:hover:not(.locked) {
  border-color: var(--accent);
  background-color: var(--accent-muted);
}

.format-option:has(input:checked) {
  border-color: var(--accent);
  background-color: var(--accent-muted);
  color: var(--accent-hover);
}

.format-option input[type="radio"] {
  accent-color: var(--accent);
}

.format-option.locked {
  cursor: default;
  color: var(--text-muted);
}

.format-option.locked:hover {
  border-color: var(--warning);
}

/* Quality slider */
.quality-row {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  margin: 0.625rem 0;
}

#quality-slider {
  flex: 1;
  accent-color: var(--accent);
  height: 4px;
  cursor: not-allowed;
  opacity: 0.5;
}

#quality-slider:not(:disabled) {
  cursor: pointer;
  opacity: 1;
}

.quality-value {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  font-family: "SF Mono", "Fira Mono", Consolas, monospace;
  min-width: 2.5ch;
  text-align: right;
}

/* Field labels and inputs */
.field-label {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text);
}

.field-label input[type="number"],
.field-label input[type="text"] {
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.875rem;
  padding: 0.5rem 0.75rem;
  width: 120px;
  box-shadow: var(--shadow-inset);
  transition: border-color 0.15s ease;
  outline: none;
}

.field-label input[type="number"]:focus,
.field-label input[type="text"]:focus {
  border-color: var(--accent);
}

.field-label input:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* Config hint */
.config-hint {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  line-height: 1.5;
}

/* Checkbox option */
.checkbox-option {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text);
  user-select: none;
}

.checkbox-option input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
  accent-color: var(--accent);
  flex-shrink: 0;
}

/* ========================================
   Process Button + Progress
   ======================================== */

.btn-process {
  display: block;
  width: 100%;
  background-color: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  padding: 0.875rem 1.5rem;
  cursor: pointer;
  letter-spacing: -0.01em;
  box-shadow: var(--shadow-inset);
  transition: background-color 0.15s ease, opacity 0.15s ease;
}

.btn-process:hover:not(:disabled) {
  background-color: var(--accent-hover);
}

.btn-process:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-process:active:not(:disabled) {
  box-shadow: var(--shadow-inset-strong);
}

/* Progress bar */
.progress-wrap {
  margin-top: 1rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  height: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-inset);
}

.progress-bar {
  height: 100%;
  background-color: var(--accent);
  border-radius: var(--radius);
  transition: width 0.2s ease;
  will-change: width;
}

/* Status message */
.status-message {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  text-align: center;
}

/* Error area */
.error-area {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-top: 0.875rem;
  background-color: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  box-shadow: var(--shadow-inset);
}

.error-icon {
  color: var(--warning);
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 0.05em;
}

.error-text {
  font-size: 0.875rem;
  color: var(--error);
  line-height: 1.5;
}

/* ========================================
   Pricing Section
   ======================================== */

.pack-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.75rem;
}

.pack-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 0.75rem;
  cursor: pointer;
  text-align: center;
  box-shadow: var(--shadow-inset);
  transition: border-color 0.15s ease, background-color 0.15s ease;
  color: var(--text);
}

.pack-btn:hover {
  border-color: var(--accent);
  background-color: var(--bg-surface-hover);
}

.pack-btn:active {
  box-shadow: var(--shadow-inset-strong);
}

.pack-count {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text);
}

.pack-price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.pack-validity {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* How it works */
.how-it-works {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.375rem;
  box-shadow: var(--shadow-inset);
  margin-bottom: 1.75rem;
}

.how-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.875rem;
}

.how-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  counter-reset: how-counter;
}

.how-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  counter-increment: how-counter;
  line-height: 1.5;
}

.how-list li::before {
  content: counter(how-counter);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.375rem;
  height: 1.375rem;
  min-width: 1.375rem;
  border-radius: 50%;
  background-color: var(--accent-muted);
  border: 1px solid var(--accent);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
  margin-top: 0.05em;
}

/* Token input */
.token-area {
  margin-bottom: 1rem;
}

.token-input-row {
  display: flex;
  gap: 0.625rem;
  margin-top: 0.375rem;
}

.token-input {
  flex: 1;
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.875rem;
  font-family: "SF Mono", "Fira Mono", Consolas, monospace;
  padding: 0.5625rem 0.875rem;
  box-shadow: var(--shadow-inset);
  transition: border-color 0.15s ease;
  outline: none;
}

.token-input:focus {
  border-color: var(--accent);
}

.token-input::placeholder {
  color: var(--text-muted);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.btn-activate {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.5625rem 1rem;
  cursor: pointer;
  white-space: nowrap;
  transition: border-color 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}

.btn-activate:hover {
  border-color: var(--accent);
  background-color: var(--accent-muted);
  color: var(--accent-hover);
}

/* Token status */
.token-status {
  margin-top: 0.875rem;
}

.token-confirmed {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  background-color: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: var(--radius);
  padding: 0.875rem 1rem;
  box-shadow: var(--shadow-inset);
}

.token-check {
  font-size: 1.125rem;
  color: var(--success);
  flex-shrink: 0;
}

.token-details {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.token-status-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--success);
}

.token-credits {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* Purchase confirmation */
.purchase-confirm {
  margin-top: 0.875rem;
  background-color: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: var(--radius);
  padding: 0.875rem 1rem;
  font-size: 0.875rem;
  color: var(--success);
  box-shadow: var(--shadow-inset);
}

/* ========================================
   Footer
   ======================================== */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.25rem;
  text-align: center;
}

.site-footer p {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.footer-link {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-link:hover {
  color: var(--accent-hover);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ========================================
   Utilities
   ======================================== */

[hidden] {
  display: none !important;
}

/* ========================================
   Responsive — 600px breakpoint
   ======================================== */

@media (max-width: 600px) {
  .site-header {
    padding: 0.875rem 1rem;
    margin-bottom: 1.5rem;
  }

  .header-domain {
    display: none;
  }

  .container {
    padding: 0 1rem 2.5rem;
  }

  .dropzone {
    padding: 2rem 1.25rem;
  }

  .preset-grid {
    grid-template-columns: 1fr 1fr;
  }

  .pack-grid {
    grid-template-columns: 1fr 1fr;
  }

  .format-options {
    gap: 0.5rem;
  }

  .format-option {
    font-size: 0.8125rem;
    padding: 0.375rem 0.625rem;
  }

  .custom-preset-fields {
    flex-direction: column;
    gap: 0.75rem;
  }

  .field-label input[type="number"] {
    width: 100%;
  }

  .token-input-row {
    flex-direction: column;
  }

  .btn-activate {
    width: 100%;
    text-align: center;
  }

  .how-it-works {
    padding: 1rem 1.125rem;
  }
}

@media (max-width: 380px) {
  .pack-grid {
    grid-template-columns: 1fr 1fr;
  }

  .preset-grid {
    grid-template-columns: 1fr;
  }
}