:root {
  --blue: #0b3fff;
  --blue-dark: #062fcf;
  --blue-pale: #e8edff;
  --ink: #151a25;
  --muted: #697181;
  --line: #e2e6ef;
  --page: #eef1f6;
  --white: #ffffff;
  --danger: #d63d52;
  --success: #14845f;
  --success-bg: #eef8f3;
  --success-border: rgba(20, 132, 95, 0.28);
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 14px 45px rgba(22, 37, 75, 0.08);
  --sans: "Manrope", "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  color: var(--ink);
  background: var(--page);
  font-family: var(--sans);
}

button,
input,
textarea {
  font: inherit;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  min-height: 78px;
  padding: 0.9rem clamp(1rem, 3vw, 2rem);
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  flex: 0 0 auto;
}

.brand img {
  display: block;
  height: 32px;
  width: auto;
}

.topbar-copy {
  display: grid;
  gap: 0.1rem;
  min-width: 0;
}

.topbar-copy strong {
  font-size: 0.98rem;
  font-weight: 700;
}

.topbar-copy span {
  color: var(--muted);
  font-size: 0.84rem;
}

.shell {
  width: min(960px, calc(100% - 2rem));
  margin: 1.35rem auto 2.5rem;
}

.card {
  background: var(--white);
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 1.6rem 1.7rem 1.8rem;
}

.calc-head h1 {
  margin: 0;
  font-size: clamp(1.55rem, 2.4vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.calc-head p {
  margin: 0.4rem 0 1.15rem;
  color: var(--muted);
  line-height: 1.45;
}

.mode-row {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 1.1rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #f7f8fb;
  cursor: pointer;
  white-space: nowrap;
}

.chip input {
  accent-color: var(--blue);
  flex: 0 0 auto;
}

.chip-primary {
  flex: 0 0 auto;
  padding: 0.6rem 1rem;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--ink);
}

.chip-primary:not(:has(input:checked)) {
  font-weight: 600;
  color: var(--muted);
}

.chip-secondary {
  flex: 1 1 0;
  min-width: 0;
  padding: 0.46rem 0.58rem;
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--muted);
}

.chip:has(input:checked) {
  border-color: rgba(11, 63, 255, 0.35);
  background: var(--blue-pale);
  color: var(--blue-dark);
  font-weight: 700;
}

.chip-primary:has(input:checked) {
  font-size: 0.92rem;
  padding: 0.62rem 1.05rem;
}

.chip-secondary:has(input:checked) {
  font-size: 0.72rem;
  padding: 0.5rem 0.65rem;
}

.chip-secondary:not(:has(input:checked)):hover {
  color: var(--ink);
  border-color: #d0d6e2;
}

.mode-hint {
  margin: -0.35rem 0 0.95rem;
  padding: 0.65rem 0.85rem;
  border-radius: 12px;
  background: #f7f8fb;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.45;
}

.mode-hint[hidden],
.manual-fields[hidden] {
  display: none !important;
}

.manual-fields:not([hidden]) {
  display: grid;
  gap: 0.85rem;
  margin-bottom: 0.95rem;
}

.field {
  display: grid;
  gap: 0.35rem;
}

.field span {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--muted);
}

.field input,
.field textarea,
.login-card input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0.78rem 0.9rem;
  color: var(--ink);
  background: #fff;
}

.field textarea {
  resize: vertical;
  min-height: 5.5rem;
  line-height: 1.45;
}

.field input:focus,
.field textarea:focus,
.login-card input:focus {
  outline: 2px solid rgba(11, 63, 255, 0.2);
  border-color: rgba(11, 63, 255, 0.45);
}

.dropzone {
  display: grid;
  place-items: center;
  gap: 0.25rem;
  min-height: 150px;
  padding: 1.4rem;
  border: 1.5px dashed rgba(11, 63, 255, 0.35);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--blue-pale), #fff);
  cursor: pointer;
  text-align: center;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.dropzone strong {
  font-size: 1rem;
}

.dropzone span {
  color: var(--muted);
  font-size: 0.88rem;
}

.dropzone.is-drag {
  border-color: var(--blue);
  transform: translateY(-1px);
}

.results {
  display: grid;
  gap: 0.7rem;
  margin-top: 1.1rem;
}

.result-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 0.85rem;
  align-items: start;
  padding: 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fafbfd;
}

.result-item.is-done {
  border-color: var(--success-border);
  background: var(--success-bg);
}

.result-thumb img,
.thumb-empty {
  width: 72px;
  height: 72px;
  border-radius: 10px;
  object-fit: cover;
  border: 1px solid var(--line);
  background: #fff;
  display: block;
}

.result-body {
  display: grid;
  gap: 0.28rem;
  min-width: 0;
}

.result-file {
  font-size: 0.92rem;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.token-done {
  margin-top: 0.2rem;
}

.token-label {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--success);
  user-select: none;
}

.token-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin-top: 0.2rem;
}

.token-row.muted {
  color: var(--muted);
  font-size: 0.82rem;
}

.token-row code {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: #3a4458;
  background: #eef1f6;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.28rem 0.45rem;
  word-break: break-all;
  max-width: 100%;
}

.token-row.is-ready code {
  color: var(--success);
  background: #fff;
  border-color: var(--success-border);
  font-weight: 700;
}

.item-note {
  margin: 0.15rem 0 0;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.35;
}

.btn {
  appearance: none;
  border: 0;
  border-radius: 14px;
  padding: 0.95rem 1.15rem;
  font-weight: 800;
  cursor: pointer;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  width: 100%;
  margin-top: 1rem;
  background: var(--blue);
  color: #fff;
  box-shadow: 0 10px 24px rgba(11, 63, 255, 0.25);
}

.btn-primary:hover:not(:disabled) {
  background: var(--blue-dark);
}

.btn-copy {
  padding: 0.28rem 0.55rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 600;
}

.btn-copy:hover {
  color: var(--ink);
  border-color: #c9d0de;
}

.result-item.is-done .btn-copy {
  color: var(--success);
  border-color: var(--success-border);
  background: #fff;
}

.message {
  min-height: 1.2em;
  margin: 0.75rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.message.err {
  color: var(--danger);
}

dialog {
  border: 0;
  border-radius: 18px;
  padding: 0;
  box-shadow: var(--shadow);
  width: min(420px, calc(100vw - 2rem));
}

dialog::backdrop {
  background: rgba(21, 26, 37, 0.45);
  backdrop-filter: blur(4px);
}

.login-card {
  padding: 1.35rem;
  display: grid;
  gap: 0.7rem;
}

.login-card h2,
.login-card p {
  margin: 0;
}

.login-card p {
  color: var(--muted);
}

.login-card input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0.78rem 0.9rem;
}

@media (max-width: 640px) {
  .topbar {
    flex-wrap: wrap;
  }

  .result-item {
    grid-template-columns: 56px 1fr;
  }

  .result-thumb img,
  .thumb-empty {
    width: 56px;
    height: 56px;
  }
}