:root {
  --bg: #0b0e14;
  --card: #12161f;
  --border: #232a38;
  --text: #e6e9ef;
  --muted: #8a93a6;
  --accent: #5eead4;
  --accent-2: #7dd3fc;
  --error: #f87171;
  --ok: #4ade80;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(94,234,212,0.07), transparent),
    radial-gradient(900px 500px at -10% 110%, rgba(125,211,252,0.06), transparent),
    var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

.wrap { max-width: 880px; margin: 0 auto; padding: 48px 20px 32px; }

header h1 {
  font-size: 2.4rem;
  margin: 0;
  letter-spacing: -0.03em;
}
header .tag { color: var(--muted); margin: 8px 0 28px; }
.accent { color: var(--accent); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 20px;
}

#dropzone {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 44px 24px;
  text-align: center;
  color: var(--muted);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, transform 0.15s;
}
#dropzone:hover, #dropzone:focus-visible,
#dropzone.dragover {
  border-color: var(--accent);
  background: rgba(94,234,212,0.05);
  transform: translateY(-1px);
  outline: none;
}
#dropzone p { margin: 10px 0 0; }
#dropzone strong { color: var(--text); }
#dropzone .hint { font-size: 0.85rem; }

.error { color: var(--error); margin: 12px 0 0; font-size: 0.9rem; }

.row-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.file-label { margin: 0; font-weight: 600; overflow-wrap: anywhere; }

.badge {
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(125,211,252,0.12);
  color: var(--accent-2);
  border: 1px solid rgba(125,211,252,0.3);
}
.badge.done { background: rgba(74,222,128,0.1); color: var(--ok); border-color: rgba(74,222,128,0.35); }
.badge.error { background: rgba(248,113,113,0.1); color: var(--error); border-color: rgba(248,113,113,0.35); }

.bar {
  height: 8px;
  background: var(--border);
  border-radius: 999px;
  overflow: hidden;
  margin: 18px 0 8px;
}
#bar-fill {
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.25s ease;
}

.pages { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.page-chip {
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  background: rgba(255,255,255,0.02);
}
.page-chip.done { color: var(--ok); border-color: rgba(74,222,128,0.4); }
.page-chip.failed { color: var(--error); border-color: rgba(248,113,113,0.4); }
.page-chip.converting { color: var(--accent-2); border-color: rgba(125,211,252,0.4); animation: pulse 1.2s infinite; }
@keyframes pulse { 50% { opacity: 0.55; } }

.preview {
  margin: 18px 0 0;
  padding: 16px;
  max-height: 320px;
  overflow: auto;
  background: #0d1117;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 11px;
  line-height: 1.15;
  white-space: pre;
  color: #c9d1d9;
}
.preview.tall { max-height: 520px; }

.actions { display: flex; gap: 10px; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 9px 18px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  color: var(--text);
  font-size: 0.92rem;
  cursor: pointer;
  text-decoration: none;
  transition: filter 0.15s, border-color 0.15s;
}
.btn:hover { filter: brightness(1.2); border-color: var(--accent); }
.btn.primary {
  background: linear-gradient(90deg, rgba(94,234,212,0.18), rgba(125,211,252,0.18));
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}
.btn.ghost { background: transparent; color: var(--muted); }

footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
  margin-top: 30px;
}
footer .mono { font-size: 0.78rem; }

/* ---- auth & account ---- */
.brand-row { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; }
.auth-area { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
.avatar { width: 32px; height: 32px; border-radius: 50%; border: 1px solid var(--border); }
.user-email { color: var(--muted); font-size: 0.85rem; max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tier-badge { text-transform: capitalize; font-size: 0.72rem; padding: 4px 10px; border-radius: 999px; border: 1px solid var(--accent); color: var(--accent); background: rgba(94,234,212,0.08); }
.tier-badge.paid { border-color: var(--accent-2); color: var(--accent-2); background: rgba(125,211,252,0.08); }

.menu { position: relative; }
.menu-btn { background: rgba(255,255,255,0.03); border: 1px solid var(--border); color: var(--text); border-radius: 10px; padding: 8px 12px; cursor: pointer; font-size: 0.9rem; }
.menu-dropdown { position: absolute; right: 0; top: calc(100% + 6px); background: var(--card); border: 1px solid var(--border); border-radius: 10px; min-width: 200px; z-index: 50; box-shadow: 0 12px 40px rgba(0,0,0,0.5); overflow: hidden; }
.menu-dropdown button, .menu-dropdown a { display: block; width: 100%; text-align: left; padding: 10px 14px; background: none; border: none; color: var(--text); font-size: 0.88rem; cursor: pointer; text-decoration: none; }
.menu-dropdown button:hover, .menu-dropdown a:hover { background: rgba(255,255,255,0.05); }
.menu-sep { height: 1px; background: var(--border); margin: 4px 0; }

.usage-bar { height: 5px; background: var(--border); border-radius: 999px; overflow: hidden; margin-top: 6px; width: 160px; }
.usage-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
.usage-text { font-size: 0.72rem; color: var(--muted); margin-top: 3px; }

.cta-row { display: flex; gap: 10px; margin-top: 14px; }
.btn.small { padding: 6px 12px; font-size: 0.8rem; }

/* ---- modals ---- */
.modal-backdrop { position: fixed; inset: 0; background: rgba(5,8,14,0.75); backdrop-filter: blur(4px); display: flex; align-items: center; justify-content: center; z-index: 100; padding: 20px; }
.modal { position: relative; background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 28px; max-width: 920px; width: 100%; max-height: 90vh; overflow: auto; }
.modal.narrow { max-width: 560px; }
.modal h2 { margin: 0 0 6px; }
.modal-close { position: absolute; top: 14px; right: 18px; background: none; border: none; color: var(--muted); font-size: 1.6rem; cursor: pointer; line-height: 1; }
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 14px; margin: 20px 0 10px; }
.plan { border: 1px solid var(--border); border-radius: 12px; padding: 18px; display: flex; flex-direction: column; }
.plan.featured { border-color: var(--accent); box-shadow: 0 0 24px rgba(94,234,212,0.08); }
.plan h3 { margin: 0; font-size: 1rem; }
.plan .price { font-size: 1.7rem; font-weight: 700; margin: 8px 0; color: var(--text); }
.plan .price span { font-size: 0.85rem; color: var(--muted); font-weight: 400; }
.plan ul { list-style: none; padding: 0; margin: 0 0 16px; color: var(--muted); font-size: 0.84rem; flex: 1; }
.plan li { padding: 3px 0; }
.plan li::before { content: "· "; color: var(--accent); }
.hint.center { text-align: center; }

.new-key-row { display: flex; gap: 10px; margin: 16px 0 10px; }
.new-key-row input { flex: 1; background: #0d1117; border: 1px solid var(--border); color: var(--text); border-radius: 10px; padding: 9px 12px; font-size: 0.9rem; outline: none; }
.new-key-row input:focus { border-color: var(--accent); }
.key-reveal { user-select: all; }
.keys-list { margin-top: 12px; }
.key-row { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 9px 0; border-bottom: 1px solid var(--border); font-size: 0.86rem; }
.key-row:last-child { border-bottom: none; }
.key-prefix { font-family: ui-monospace, Menlo, monospace; color: var(--accent-2); }
.key-meta { color: var(--muted); font-size: 0.76rem; }
.link { color: var(--accent-2); }

.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: var(--card); border: 1px solid var(--accent); color: var(--text); padding: 11px 20px; border-radius: 12px; z-index: 200; font-size: 0.9rem; box-shadow: 0 12px 40px rgba(0,0,0,0.5); max-width: 90vw; }
.toast.err { border-color: var(--error); }

@media (max-width: 720px) {
  .brand-row { flex-direction: column; }
  .auth-area { justify-content: flex-start; }
}