:root {
  --ink: #0d0e12;
  --ink-2: #14161c;
  --panel: #181b22;
  --panel-2: #1f232c;
  --line: #2a2e39;
  --cream: #ece7df;
  --muted: #9a9ba6;
  --muted-2: #6c6e7a;
  --accent: #ff5a36;
  --accent-soft: rgba(255, 90, 54, 0.14);
  --good: #5fd28a;
  --bad: #ff6b6b;
  --radius: 18px;
  --radius-sm: 11px;
  --shadow: 0 24px 60px -28px rgba(0, 0, 0, 0.8);
}

* {
  box-sizing: border-box;
}

/* The UI toggles visibility via the `hidden` attribute (see app.js). Element
   rules like `.modal { display: flex }` would otherwise override the browser's
   default `[hidden] { display: none }`, leaving the modal stuck open. */
[hidden] {
  display: none !important;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100dvh;
  height: 100dvh;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background:
    radial-gradient(1100px 620px at 78% -8%, rgba(255, 90, 54, 0.1), transparent 60%),
    radial-gradient(900px 600px at -8% 12%, rgba(95, 120, 210, 0.07), transparent 55%),
    var(--ink);
  color: var(--cream);
  font-family: "Archivo", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Fixed grain overlay for atmosphere. */
.grain {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

code {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.86em;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 0.08em 0.42em;
  border-radius: 6px;
}

/* ---------- card ---------- */
.card {
  position: relative;
  z-index: 1;
  width: min(440px, 100%);
  background: linear-gradient(180deg, var(--panel), var(--ink-2));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(22px, 5vw, 30px);
  box-shadow: var(--shadow);
}

.head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
}

.head__actions {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--cream);
}

.brand__mark {
  color: var(--cream);
  flex: none;
}

.brand__word {
  font-family: "Bricolage Grotesque", sans-serif;
  font-weight: 800;
  font-size: 1.28rem;
  letter-spacing: -0.02em;
}

.brand__dot {
  color: var(--accent);
}

.ghost-btn {
  font: inherit;
  font-weight: 600;
  font-size: 0.86rem;
  color: var(--cream);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 15px;
  cursor: pointer;
  transition: border-color 0.18s, background 0.18s;
}

.ghost-btn:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

/* ---------- notice ---------- */
.notice {
  border: 1px solid rgba(255, 90, 54, 0.4);
  background: var(--accent-soft);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-bottom: 18px;
  font-size: 0.88rem;
  color: var(--cream);
  display: grid;
  gap: 4px;
}

/* ---------- form ---------- */
.field {
  display: block;
  margin-bottom: 12px;
}

input[type="url"],
.slug-input input {
  width: 100%;
  font: inherit;
  color: var(--cream);
  background: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px;
  transition: border-color 0.18s, box-shadow 0.18s;
}

input[type="url"] {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.92rem;
}

input[type="url"]::placeholder,
.slug-input input::placeholder {
  color: var(--muted-2);
  font-family: "Archivo", sans-serif;
}

input[type="url"]:focus,
.slug-input input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.field__error {
  display: block;
  font-size: 0.8rem;
  color: var(--bad);
  margin-top: 6px;
  min-height: 0;
}

.field__error:empty {
  display: none;
}

.slug-input {
  display: flex;
  align-items: center;
  background: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 16px;
  transition: border-color 0.18s, box-shadow 0.18s;
}

.slug-input:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.slug-input__prefix {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.84rem;
  color: var(--muted);
  padding: 0 2px 0 14px;
  white-space: nowrap;
}

.slug-input input {
  border: none;
  background: transparent;
  border-radius: 0;
  padding-left: 2px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.88rem;
}

.slug-input input:focus {
  box-shadow: none;
}

.slug-status {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  font-weight: 700;
  white-space: nowrap;
  padding: 0 14px 0 8px;
}

.slug-status[data-state="checking"] {
  color: var(--muted);
}
.slug-status[data-state="free"] {
  color: var(--good);
}
.slug-status[data-state="taken"],
.slug-status[data-state="invalid"] {
  color: var(--bad);
}

.primary-btn {
  position: relative;
  width: 100%;
  font: inherit;
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--ink);
  background: var(--accent);
  border: none;
  border-radius: var(--radius-sm);
  padding: 15px;
  cursor: pointer;
  transition: transform 0.16s, filter 0.16s, opacity 0.16s;
}

.primary-btn:hover {
  filter: brightness(1.07);
  transform: translateY(-1px);
}

.primary-btn:active {
  transform: translateY(0);
}

.primary-btn:disabled {
  opacity: 0.6;
  cursor: progress;
  transform: none;
}

.spinner {
  position: absolute;
  top: 50%;
  right: 16px;
  width: 16px;
  height: 16px;
  margin-top: -8px;
  border: 2px solid rgba(13, 14, 18, 0.35);
  border-top-color: var(--ink);
  border-radius: 50%;
  opacity: 0;
}

.primary-btn.is-loading .spinner {
  opacity: 1;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.form-error {
  color: var(--bad);
  font-size: 0.86rem;
  margin: 12px 0 0;
}

/* ---------- result ---------- */
.result {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
  display: flex;
  align-items: center;
  gap: 14px;
  animation: reveal 0.4s ease both;
}

@keyframes reveal {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
}

.result__row {
  flex: 1;
  min-width: 0;
  display: flex;
  gap: 10px;
  align-items: stretch;
}

.result__link {
  flex: 1;
  min-width: 0;
  font-family: "JetBrains Mono", monospace;
  font-weight: 700;
  font-size: 1rem;
  color: var(--accent);
  text-decoration: none;
  background: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 13px 14px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  display: flex;
  align-items: center;
}

.result__link:hover {
  text-decoration: underline;
}

.copy-btn {
  flex: none;
  font: inherit;
  font-weight: 700;
  color: var(--cream);
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0 16px;
  cursor: pointer;
  transition: background 0.16s, color 0.16s, border-color 0.16s;
}

.copy-btn:hover {
  border-color: var(--accent);
}

.copy-btn.copied {
  background: var(--good);
  color: var(--ink);
  border-color: var(--good);
}

.result__qr {
  flex: none;
  border-radius: 10px;
  background: #fff;
  padding: 5px;
}

@media (max-width: 460px) {
  .result {
    flex-direction: column;
    align-items: stretch;
  }
  .result__qr {
    align-self: center;
  }
}

/* ---------- key modal ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(5, 6, 9, 0.72);
  backdrop-filter: blur(3px);
}

.modal__card {
  position: relative;
  width: min(420px, 100%);
  background: linear-gradient(180deg, var(--panel), var(--ink-2));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(22px, 5vw, 28px);
  box-shadow: var(--shadow);
  animation: reveal 0.32s ease both;
}

.modal__close {
  position: absolute;
  top: 14px;
  right: 14px;
  font: inherit;
  font-size: 0.9rem;
  line-height: 1;
  color: var(--muted);
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 6px;
  transition: color 0.16s;
}

.modal__close:hover {
  color: var(--cream);
}

.modal__title {
  font-family: "Bricolage Grotesque", sans-serif;
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}

.modal__lead {
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0 0 18px;
}

.key-input {
  display: flex;
  align-items: center;
  background: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color 0.18s, box-shadow 0.18s;
}

.key-input:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.key-input input {
  flex: 1;
  min-width: 0;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.9rem;
  color: var(--cream);
  background: transparent;
  border: none;
  padding: 14px;
}

.key-input input:focus {
  outline: none;
}

.key-input input::placeholder {
  color: var(--muted-2);
}

.key-input__reveal {
  flex: none;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  background: transparent;
  border: none;
  border-left: 1px solid var(--line);
  padding: 0 14px;
  align-self: stretch;
  cursor: pointer;
  transition: color 0.16s;
}

.key-input__reveal:hover {
  color: var(--cream);
}

.modal__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
}

.modal__actions .primary-btn {
  flex: 1;
}

.modal__actions .ghost-btn {
  flex: none;
}