:root {
  --bg:           #edf1fb;
  --surface:      #ffffff;
  --surface-hi:   #f0f4ff;
  --border:       #c5d2f0;
  --border-hi:    #7a9ae8;
  --text:         #0d1b3e;
  --muted:        #4a5c8a;
  --accent:       #16247a;
  --accent-hover: #1ea5d8;
  --yellow:       #f5c000;
  --yellow-dark:  #c99a00;
  --success:      #16a34a;
  --warning:      #d97706;
  --error:        #dc2626;
  --font:         system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --radius:       10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.app {
  max-width: 34rem;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

header {
  margin-bottom: 1.75rem;
  padding-top: 2.75rem;
}

header h1 {
  margin: 0 0 0.4rem;
  font-size: 1.85rem;
  font-weight: 900;
  font-style: normal;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text);
}

header h1 em {
  font-style: italic;
  color: var(--accent);
}

@supports (background-clip: text) or (-webkit-background-clip: text) {
  header h1 .e-logo {
    background: linear-gradient(160deg, #ffffff 0%, #8fe0f7 30%, var(--accent-hover) 60%, var(--accent) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
  }
}

.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  letter-spacing: 0.01em;
}

.supported-games {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.7rem;
}

.supported-games-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.supported-games ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.supported-games li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0.6rem;
  background: var(--surface-hi);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--muted);
}

.region-tag {
  padding: 0.05rem 0.4rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--accent);
}

.panel {
  margin-top: 1rem;
  padding: 1rem 1.25rem;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 1px 4px rgba(22,36,122,0.06);
}

.panel label {
  display: block;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.field-hint {
  margin: 0.55rem 0 0;
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.45;
}

#game-select {
  width: 100%;
  padding: 0.6rem 0.75rem;
  font-size: 0.92rem;
  font-family: inherit;
  color: var(--text);
  background: var(--surface-hi);
  border: 1.5px solid var(--border);
  border-radius: 7px;
  outline: none;
  transition: border-color 0.15s;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%234a5c8a' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2rem;
}

#game-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(22,36,122,0.12);
}

#game-select:disabled {
  opacity: 0.5;
}

.game-guide {
  margin-top: 0.85rem;
  border: 1.5px solid color-mix(in srgb, var(--yellow-dark) 18%, var(--border));
  border-radius: 8px;
  background: color-mix(in srgb, var(--yellow) 6%, var(--surface));
  overflow: hidden;
  transition: border-color 0.15s, background 0.15s;
}

.game-guide[hidden] {
  display: none;
}

.game-guide[open] {
  border-color: color-mix(in srgb, var(--yellow-dark) 28%, var(--border));
  background: color-mix(in srgb, var(--yellow) 9%, var(--surface));
}

.game-guide-summary {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.7rem 0.85rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.game-guide-summary::-webkit-details-marker {
  display: none;
}

.game-guide-summary-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.7rem;
  height: 1.7rem;
  flex-shrink: 0;
  border-radius: 50%;
  background: color-mix(in srgb, var(--yellow) 18%, transparent);
  color: color-mix(in srgb, var(--yellow-dark) 70%, var(--muted));
}

.game-guide-summary-icon svg {
  width: 0.95rem;
  height: 0.95rem;
}

.game-guide-summary-text {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
  flex: 1;
}

.game-guide-summary-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.25;
}

.game-guide-summary-hint {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--muted);
  line-height: 1.35;
}

.game-guide-summary::after {
  content: '';
  width: 0.45rem;
  height: 0.45rem;
  margin-right: 0.15rem;
  border-right: 1.5px solid var(--muted);
  border-bottom: 1.5px solid var(--muted);
  transform: rotate(45deg);
  transition: transform 0.15s ease, border-color 0.15s;
  flex-shrink: 0;
}

.game-guide[open] .game-guide-summary::after {
  transform: rotate(-135deg);
  margin-top: 0.2rem;
  border-color: color-mix(in srgb, var(--yellow-dark) 55%, var(--muted));
}

.game-guide-summary:hover .game-guide-summary-title {
  color: color-mix(in srgb, var(--yellow-dark) 65%, var(--text));
}

.game-guide-summary:hover .game-guide-summary-icon {
  background: color-mix(in srgb, var(--yellow) 28%, transparent);
}

.game-guide-summary:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 2px color-mix(in srgb, var(--yellow-dark) 25%, transparent);
}

.game-guide-body {
  padding: 0 0.95rem 0.95rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.game-guide-section {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.game-guide-title {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.game-guide-note {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.5;
  color: var(--muted);
}

.game-guide-note strong {
  font-weight: 700;
  color: var(--text);
}

.game-guide-steps {
  margin: 0;
  padding: 0 0 0 1.15rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.game-guide-steps li {
  font-size: 0.84rem;
  line-height: 1.5;
  color: var(--text);
}

.game-guide-steps li strong {
  font-weight: 700;
  color: var(--text);
}

.game-guide-link-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.game-guide-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.84rem;
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.game-guide-link:hover {
  color: var(--accent-hover);
}

.external-link-icon {
  width: 0.78rem;
  height: 0.78rem;
  flex-shrink: 0;
  opacity: 0.75;
}

.drop-zone {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 1.6rem 1rem;
  border: 2px dashed var(--border-hi);
  border-radius: var(--radius);
  background: var(--surface-hi);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
  text-align: center;
}

.drop-zone:hover,
.drop-zone:focus-visible {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 6%, var(--surface-hi));
  box-shadow: 0 0 0 3px rgba(22,36,122,0.1);
  outline: none;
}

.drop-zone.drag-over {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, var(--surface-hi));
  box-shadow: 0 0 0 4px rgba(22,36,122,0.15);
}

.drop-zone input[type='file'] {
  position: absolute;
  inset: 0;
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
}

.drop-zone-arrow {
  width: 2rem;
  height: 2rem;
  color: var(--accent);
  transition: transform 0.15s;
}

.drop-zone:hover .drop-zone-arrow,
.drop-zone.drag-over .drop-zone-arrow {
  transform: translateY(3px);
}

.drop-zone-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}

.drop-zone-sub {
  font-size: 0.75rem;
  color: var(--muted);
}

.card-info-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin-top: 0.55rem;
}

.card-info {
  margin: 0;
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.45;
}

.card-display {
  margin-top: 0.55rem;
  padding: 0.65rem 0.85rem 0.6rem;
  background: var(--surface-hi);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.card-display.hidden { display: none; }

.card-display-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.card-display-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

.card-type-badge {
  flex-shrink: 0;
  font-size: 0.6rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  padding: 0.2em 0.6em;
  border-radius: 4px;
}

.card-type-badge[data-type='level'] {
  background: color-mix(in srgb, var(--success) 14%, transparent);
  color: var(--success);
}

.card-type-badge[data-type='power-up'] {
  background: color-mix(in srgb, var(--yellow) 22%, transparent);
  color: var(--yellow-dark);
}

.card-type-badge[data-type='demo'] {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent);
}

.card-type-badge[data-type='neutral'],
.card-type-badge[data-type='unknown'],
.card-type-badge:not([data-type]) {
  background: color-mix(in srgb, var(--muted) 12%, transparent);
  color: var(--muted);
}

.card-display-sub {
  margin: 0.2rem 0 0;
  font-size: 0.72rem;
  color: var(--muted);
  line-height: 1.4;
}

.card-formats {
  margin-top: 0.35rem;
  font-size: 0.72rem;
  opacity: 0.85;
}

.status-panel {
  margin-top: 1rem;
  padding: 1.25rem 1.25rem 1.1rem;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  box-shadow: 0 1px 4px rgba(22,36,122,0.06);
}

.stepper {
  display: flex;
  align-items: center;
  margin-bottom: 1.35rem;
}

.stepper-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
}

.stepper-step span {
  font-size: 0.64rem;
  font-weight: 600;
  color: var(--muted);
  white-space: nowrap;
  letter-spacing: 0.03em;
  transition: color 0.2s;
}

.step-node {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--border);
  position: relative;
  transition: background 0.2s, border-color 0.2s;
}

.stepper-step[data-state='done'] .step-node {
  border-color: var(--success);
}

.stepper-step[data-state='done'] .step-node::after {
  content: '';
  position: absolute;
  inset: 4px;
  background: var(--success);
  border-radius: 50%;
}

.stepper-step[data-state='done'] span { color: var(--success); }

.stepper-step[data-state='active'] .step-node {
  border-color: var(--accent);
  background: var(--accent);
  animation: step-pulse 1.6s ease-in-out infinite;
}

.stepper-step[data-state='active'] span {
  color: var(--accent);
  font-weight: 700;
}

.stepper-step[data-state='complete'] .step-node {
  background: var(--success);
  border-color: var(--success);
}

.stepper-step[data-state='complete'] .step-node::after {
  content: '✓';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: #fff;
  font-weight: 800;
}

.stepper-step[data-state='complete'] span {
  color: var(--success);
  font-weight: 700;
}

@keyframes step-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(22,36,122,0.45); }
  50%       { box-shadow: 0 0 0 6px rgba(22,36,122,0); }
}

.stepper-line {
  flex: 1;
  height: 2px;
  background: var(--border);
  margin-bottom: 1.35rem;
  transition: background 0.2s;
}

.stepper-line[data-state='done'] { background: var(--success); }

.status-row {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 0.2rem;
}

.indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--border-hi);
  transition: background 0.2s;
}

.indicator[data-type='active']  { background: var(--accent); animation: ind-pulse 1.2s ease-in-out infinite; }
.indicator[data-type='success'] { background: var(--success); }
.indicator[data-type='error']   { background: var(--error); }
.indicator[data-type='warning'] { background: var(--warning); }
.indicator[data-type='idle']    { background: var(--border-hi); }

@keyframes ind-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.35; }
}

.status {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 700;
}

.status[data-type='success'] { color: var(--success); }
.status[data-type='error']   { color: var(--error); }
.status[data-type='warning'] { color: var(--warning); }

.detail {
  margin: 0.15rem 0 0 1.4rem;
  font-size: 0.78rem;
  color: var(--muted);
}

.instruction-box {
  margin-top: 1rem;
  padding: 0.8rem 1rem;
  background: color-mix(in srgb, var(--accent) 7%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
  border-radius: 8px;
  font-size: 0.875rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.instruction-box.hidden { display: none; }

.instruction-label {
  font-size: 0.67rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--accent);
}

#instruction-text {
  color: var(--text);
  line-height: 1.5;
  white-space: pre-line;
}

.instruction-box[data-type='success'] {
  background: color-mix(in srgb, var(--success) 8%, var(--surface));
  border-color: color-mix(in srgb, var(--success) 28%, transparent);
}

.instruction-box[data-type='success'] .instruction-label { color: var(--success); }

.actions {
  display: flex;
  gap: 0.65rem;
  margin-top: 1.25rem;
  margin-bottom: 2.5rem;
}

button {
  flex: 1;
  padding: 0.8rem 1rem;
  font-size: 0.92rem;
  font-family: inherit;
  font-weight: 700;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s, box-shadow 0.15s;
  letter-spacing: 0.01em;
}

button:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

button.primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 8px rgba(22,36,122,0.25);
}

button.primary:hover:not(:disabled) {
  background: var(--accent-hover);
  box-shadow: 0 4px 14px rgba(22,36,122,0.35);
}

button.secondary {
  background: var(--surface);
  color: var(--muted);
  border: 1.5px solid var(--border);
  flex: 0 0 auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

button.secondary:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

.log-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.55rem;
}

.log-header .log-label {
  margin-bottom: 0;
}

.log-copy-btn {
  flex: 0 0 auto;
  padding: 0.35rem 0.65rem;
  font-size: 0.72rem;
}

.log-panel {
  margin-top: 2.5rem;
  padding: 1rem 1.1rem;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 1px 4px rgba(22,36,122,0.06);
}

.log-label {
  display: block;
  font-size: 0.67rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--accent);
}

#log {
  margin: 0.65rem 0 0;
  padding: 0.75rem 0.85rem;
  max-height: 12rem;
  overflow: auto;
  background: var(--surface-hi);
  border: 1px solid var(--border);
  border-radius: 7px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--muted);
  white-space: pre-wrap;
}

#log::-webkit-scrollbar { width: 5px; }
#log::-webkit-scrollbar-track { background: transparent; }
#log::-webkit-scrollbar-thumb { background: var(--border-hi); border-radius: 99px; }

footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--muted);
  text-align: center;
}

footer p { margin: 0.3rem 0; }

footer a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.15s;
}

footer a:hover { color: var(--accent-hover); }

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  margin-top: 0.75rem !important;
  font-weight: 600;
}

.footer-brand img {
  border-radius: 3px;
}

.footer-brand a {
  text-decoration: none;
}

.footer-brand a:hover {
  text-decoration: underline;
}

.hidden { display: none; }