:root {
  --bg: radial-gradient(120% 120% at 20% 20%, #0f172a 0%, #0b1022 45%, #050815 100%);
  --card: rgba(255, 255, 255, 0.05);
  --accent: #38bdf8;
  --accent-strong: #22d3ee;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --border: rgba(255, 255, 255, 0.08);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  font-family: "Space Grotesk", "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
}

.page {
  max-width: 960px;
  margin: 0 auto;
  padding: 28px 18px 60px;
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  align-items: flex-end;
  margin-bottom: 28px;
}

.eyebrow {
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 6px;
}

h1 {
  margin: 0;
  font-size: 36px;
  line-height: 1.1;
}

.subtitle {
  margin: 8px 0 0;
  color: var(--muted);
}

.token-block {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 12px 14px;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.token-block label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 4px;
}

.token-block input {
  width: 220px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  color: var(--text);
  outline: none;
}

.token-block small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.dropzone {
  position: relative;
  border: 1.5px dashed rgba(255, 255, 255, 0.2);
  border-radius: 14px;
  padding: 36px;
  text-align: center;
  transition: border-color 0.2s, background 0.2s;
  background: rgba(255, 255, 255, 0.02);
}

.dropzone.active {
  border-color: var(--accent);
  background: rgba(34, 211, 238, 0.06);
}

.drop-title {
  font-size: 18px;
  margin: 0 0 8px;
}

#select-btn {
  background: var(--accent);
  border: none;
  color: #041018;
  padding: 8px 14px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

#select-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(56, 189, 248, 0.4);
}

.hint {
  color: var(--muted);
  margin: 0;
}

.progress-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 18px 0 10px;
}

.progress {
  flex: 1;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--border);
  height: 10px;
}

.bar {
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-strong));
  transition: width 0.15s linear;
}

.progress-text {
  width: 140px;
  text-align: right;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.status {
  min-height: 24px;
  color: var(--muted);
  font-size: 14px;
}

.result {
  margin-top: 10px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.04);
}

.label {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
}

.url {
  margin: 4px 0 0;
  font-weight: 600;
  word-break: break-all;
}

#copy-btn {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 10px;
  padding: 8px 12px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

#copy-btn:hover {
  background: var(--accent);
  color: #041018;
}

@media (max-width: 720px) {
  .hero {
    flex-direction: column;
    align-items: flex-start;
  }
  .token-block input {
    width: 100%;
  }
  .result {
    flex-direction: column;
    align-items: flex-start;
  }
  .progress-text {
    width: auto;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 28px;
  }
  .card {
    padding: 18px;
  }
  .dropzone {
    padding: 24px;
  }
  #select-btn {
    width: 100%;
    margin-top: 8px;
  }
  .progress-row {
    flex-direction: column;
    align-items: flex-start;
  }
  .progress {
    width: 100%;
  }
  .result {
    width: 100%;
  }
}