/* ---------- Coinbase design tokens ---------- */
:root {
  --cb-blue: #0052ff;
  --cb-blue-hover: #578bfa;
  --cb-blue-active: #003ecc;
  --cb-blue-soft: #eef3ff;
  --cb-ink: #0a0b0d;
  --cb-gray-900: #0a0b0d;
  --cb-gray-700: #32353d;
  --cb-gray-500: #5b616e;
  --cb-gray-300: #d8dce1;
  --cb-gray-200: #e6e8eb;
  --cb-gray-100: #f5f6f8;
  --cb-canvas: #ffffff;
  --cb-offwhite: #f9fafb;
  --cb-error: #cf202f;

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --radius-card: 16px;
  --radius-input: 12px;
  --radius-pill: 100px;
  --maxw: 1140px;
  --t: 160ms ease;

  --shadow-sm: 0 1px 2px rgba(10, 11, 13, 0.05);
  --shadow-md: 0 6px 24px rgba(10, 11, 13, 0.08);
  --shadow-lg: 0 16px 48px rgba(10, 11, 13, 0.12);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}
body {
  min-height: 100dvh;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  color: var(--cb-ink);
  background: var(--cb-canvas);
}
img {
  display: block;
  max-width: 100%;
}
button {
  cursor: pointer;
  border: none;
  background: none;
  font: inherit;
  color: inherit;
}
input {
  font: inherit;
  color: inherit;
}
:focus-visible {
  outline: 2px solid var(--cb-blue);
  outline-offset: 2px;
  border-radius: 6px;
}
.hidden {
  display: none !important;
}

/* ---------- Header ---------- */
.site-header {
  border-bottom: 1px solid var(--cb-gray-200);
  background: var(--cb-canvas);
  position: sticky;
  top: 0;
  z-index: 10;
}
.header-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 2rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
  color: var(--cb-ink);
}
.brand-mark {
  height: 38px;
  width: auto;
  object-fit: contain;
}
.brand-name {
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}
.nav-links {
  display: flex;
  gap: 1.5rem;
  color: var(--cb-gray-700);
  font-size: 0.95rem;
  font-weight: 500;
  flex: 1;
}
.nav-links span {
  cursor: default;
  transition: color var(--t);
}
.nav-links span:hover {
  color: var(--cb-blue);
}
.signin-btn {
  background: var(--cb-blue);
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-pill);
  transition: background var(--t);
}
.signin-btn:hover {
  background: var(--cb-blue-active);
}
@media (max-width: 720px) {
  .nav-links {
    display: none;
  }
}

/* ---------- Layout ---------- */
.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}
.banner {
  margin: 0.5rem 0 2rem;
}
.banner img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-md);
  display: block;
}
.hero {
  max-width: 620px;
  margin: 0 0 2rem;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--cb-blue);
  margin-bottom: 0.85rem;
}
.hero h1 {
  font-weight: 800;
  font-size: clamp(1.9rem, 1.4rem + 2vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--cb-ink);
}
.lede {
  margin-top: 0.5rem;
  color: var(--cb-gray-500);
  font-size: 1.05rem;
  max-width: 56ch;
}

.studio {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 1.5rem;
  align-items: start;
}
@media (max-width: 880px) {
  .studio {
    grid-template-columns: 1fr;
  }
}

.panel {
  background: var(--cb-canvas);
  border: 1px solid var(--cb-gray-200);
  border-radius: var(--radius-card);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
}

.step-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--cb-ink);
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}
.step-title + .step-title,
.styles-grid + .step-title {
  margin-top: 2rem;
}
.step-num {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--cb-blue);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
}

/* ---------- Source tabs ---------- */
.source-tabs {
  display: inline-flex;
  gap: 0.25rem;
  background: var(--cb-gray-100);
  padding: 0.3rem;
  border-radius: var(--radius-pill);
  margin-bottom: 1.25rem;
}
.tab {
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--cb-gray-500);
  transition: all var(--t);
}
.tab.active {
  background: var(--cb-canvas);
  color: var(--cb-ink);
  box-shadow: var(--shadow-sm);
}

/* ---------- Picture grid ---------- */
.pic-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.7rem;
}
@media (max-width: 460px) {
  .pic-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
.pic-choice {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-input);
  overflow: hidden;
  border: 2.5px solid var(--cb-gray-200);
  padding: 0;
  transition: all var(--t);
}
.pic-choice img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.pic-choice:hover {
  border-color: var(--cb-blue-hover);
  transform: translateY(-2px);
}
.pic-choice.selected {
  border-color: var(--cb-blue);
  box-shadow: 0 0 0 3px var(--cb-blue-soft);
}
.pic-choice.selected::after {
  content: "✓";
  position: absolute;
  top: 5px;
  right: 5px;
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  background: var(--cb-blue);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 50%;
}

/* ---------- Dropzone ---------- */
.dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  text-align: center;
  padding: 2rem 1rem;
  border: 2px dashed var(--cb-gray-300);
  border-radius: var(--radius-input);
  color: var(--cb-gray-500);
  transition: all var(--t);
}
.dropzone:hover,
.dropzone.drag {
  border-color: var(--cb-blue);
  background: var(--cb-blue-soft);
  color: var(--cb-blue);
}
.dz-icon {
  font-size: 1.75rem;
  line-height: 1;
  color: var(--cb-blue);
}
.dz-text {
  font-weight: 600;
  color: var(--cb-ink);
}
.dz-sub {
  font-size: 0.82rem;
}
.thumb-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
}
.thumb {
  width: 84px;
  height: 84px;
  object-fit: cover;
  border-radius: var(--radius-input);
  border: 1px solid var(--cb-gray-200);
}
.link-btn {
  color: var(--cb-blue);
  font-size: 0.9rem;
  font-weight: 600;
}
.link-btn:hover {
  text-decoration: underline;
}

/* ---------- Styles grid ---------- */
.styles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(98px, 1fr));
  gap: 0.5rem;
}
.style-chip {
  padding: 0.7rem 0.5rem;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--cb-gray-200);
  background: var(--cb-canvas);
  font-size: 0.85rem;
  font-weight: 600;
  text-align: center;
  color: var(--cb-gray-700);
  transition: all var(--t);
}
.style-chip:hover {
  border-color: var(--cb-blue-hover);
  color: var(--cb-blue);
}
.style-chip.selected {
  border-color: var(--cb-blue);
  background: var(--cb-blue);
  color: #fff;
}

.custom-style {
  margin-top: 1rem;
}
.custom-style summary {
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--cb-blue);
  font-weight: 600;
  list-style: none;
}
.custom-style summary::-webkit-details-marker {
  display: none;
}
.custom-style summary::before {
  content: "＋ ";
}
.custom-style[open] summary::before {
  content: "－ ";
}
.text-input {
  width: 100%;
  margin-top: 0.6rem;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-input);
  border: 1.5px solid var(--cb-gray-300);
  background: var(--cb-canvas);
}
.text-input:focus {
  border-color: var(--cb-blue);
  outline: none;
}

/* ---------- Generate ---------- */
.generate-btn {
  width: 100%;
  margin-top: 1.5rem;
  padding: 1rem;
  border-radius: var(--radius-pill);
  background: var(--cb-blue);
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  transition: all var(--t);
}
.generate-btn:hover:not(:disabled) {
  background: var(--cb-blue-active);
  box-shadow: var(--shadow-md);
}
.generate-btn:disabled {
  background: var(--cb-gray-200);
  color: var(--cb-gray-500);
  cursor: not-allowed;
}
.error-msg {
  margin-top: 0.85rem;
  color: var(--cb-error);
  font-size: 0.9rem;
  font-weight: 600;
}

/* ---------- Result ---------- */
.result-stage {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-input);
  background: var(--cb-offwhite);
  border: 1px solid var(--cb-gray-200);
  overflow: hidden;
  display: grid;
  place-items: center;
}
.placeholder {
  text-align: center;
  color: var(--cb-gray-500);
  padding: 2rem;
  font-size: 0.95rem;
}
.loader {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  background: rgba(249, 250, 251, 0.9);
  backdrop-filter: blur(2px);
  color: var(--cb-gray-500);
  font-size: 0.92rem;
  text-align: center;
  padding: 1.5rem;
}
.spinner {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 3px solid var(--cb-gray-200);
  border-top-color: var(--cb-blue);
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
.result-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: fade 0.4s ease;
}
@keyframes fade {
  from {
    opacity: 0;
    transform: scale(1.02);
  }
}
.result-actions {
  display: flex;
  gap: 0.6rem;
  margin-top: 1rem;
}
.secondary-btn {
  flex: 1;
  text-align: center;
  padding: 0.8rem 1rem;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--cb-gray-300);
  background: var(--cb-canvas);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--cb-ink);
  text-decoration: none;
  transition: all var(--t);
}
.secondary-btn:hover {
  border-color: var(--cb-blue);
  color: var(--cb-blue);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--cb-gray-200);
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--cb-gray-500);
  font-size: 0.85rem;
}

/* ---------- Token section ---------- */
.token-section {
  margin-top: 2.5rem;
  background: var(--cb-canvas);
  border: 1px solid var(--cb-gray-200);
  border-radius: var(--radius-card);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
}
.token-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--cb-gray-200);
}
.token-id {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}
.token-logo {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--cb-gray-200);
}
.token-title {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}
.token-sub {
  color: var(--cb-gray-500);
  font-size: 0.85rem;
}
.token-price-block {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
}
.token-price {
  font-weight: 800;
  font-size: 1.9rem;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.token-change {
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.2rem 0.5rem;
  border-radius: 8px;
}
.token-change.up {
  color: #018642;
  background: #e3f6ec;
}
.token-change.down {
  color: var(--cb-error);
  background: #fbe6e8;
}

.token-body {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 1.25rem;
  margin-top: 1.5rem;
}
@media (max-width: 820px) {
  .token-body {
    grid-template-columns: 1fr;
  }
}
.chart-card {
  background: var(--cb-offwhite);
  border: 1px solid var(--cb-gray-200);
  border-radius: var(--radius-input);
  padding: 1rem 1.1rem 1.1rem;
}
.chart-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}
.chart-label {
  font-weight: 600;
  font-size: 0.9rem;
}
.chart-note {
  font-size: 0.75rem;
  color: var(--cb-gray-500);
}
.chart-wrap {
  position: relative;
  height: 190px;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
  align-content: start;
}
.stat-card {
  background: var(--cb-offwhite);
  border: 1px solid var(--cb-gray-200);
  border-radius: var(--radius-input);
  padding: 0.85rem 0.95rem;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--cb-gray-500);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.stat-value {
  margin-top: 0.3rem;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
}
.stat-value small {
  font-weight: 600;
  font-size: 0.8rem;
}
.stat-value.up {
  color: #018642;
}
.stat-value.down {
  color: var(--cb-error);
}

.token-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--cb-gray-200);
}
.ca-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  min-width: 0;
  flex-wrap: wrap;
}
.ca-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--cb-gray-500);
}
.ca-value {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.82rem;
  background: var(--cb-gray-100);
  padding: 0.35rem 0.55rem;
  border-radius: 8px;
  color: var(--cb-gray-700);
  word-break: break-all;
}
.copy-btn {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--cb-blue);
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--cb-gray-200);
  transition: all var(--t);
}
.copy-btn:hover {
  border-color: var(--cb-blue);
  background: var(--cb-blue-soft);
}
.dex-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--cb-blue);
  text-decoration: none;
}
.dex-link:hover {
  text-decoration: underline;
}
.token-error {
  margin-top: 1rem;
  color: var(--cb-error);
  font-size: 0.9rem;
  font-weight: 600;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}