:root {
  color-scheme: light dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bg: #f4f5f7;
  --panel: rgba(255, 255, 255, 0.92);
  --text: #17181a;
  --muted: #6d7178;
  --line: #dedfe3;
  --accent: #1769ff;
  --accent-hover: #0959e8;
  --danger: #d9342b;
  --success: #16824b;
  --warning: #9a6300;
  --shadow: 0 14px 40px rgba(22, 30, 45, 0.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17181a;
    --panel: rgba(35, 36, 39, 0.94);
    --text: #f2f3f5;
    --muted: #a9adb5;
    --line: #3b3d42;
    --accent: #5b91ff;
    --accent-hover: #75a2ff;
    --danger: #ff756c;
    --success: #52d58b;
    --warning: #f0b654;
    --shadow: 0 18px 50px rgba(0, 0, 0, 0.24);
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 8% 2%, color-mix(in srgb, var(--accent) 15%, transparent), transparent 32rem),
    var(--bg);
}
button, input, select { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: 0.45; }
.hidden { display: none !important; }

.shell { width: min(1120px, calc(100% - 32px)); margin: 0 auto; padding: 56px 0 80px; }
.hero { display: flex; align-items: flex-start; justify-content: space-between; gap: 32px; margin-bottom: 28px; }
.eyebrow { margin: 0 0 10px; color: var(--accent); font-size: 12px; font-weight: 750; letter-spacing: 0.14em; }
h1 { margin: 0; font-size: clamp(30px, 4vw, 52px); line-height: 1.08; letter-spacing: -0.04em; }
h2 { margin: 0 0 6px; font-size: 20px; letter-spacing: -0.02em; }
p { margin: 0; color: var(--muted); line-height: 1.65; }
.lead { max-width: 760px; margin-top: 16px; font-size: 16px; }
.status-pill { flex: 0 0 auto; padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); background: var(--panel); font-size: 13px; }
.status-pill[data-state="ok"] { border-color: color-mix(in srgb, var(--success) 45%, var(--line)); color: var(--success); }
.status-pill[data-state="error"] { border-color: color-mix(in srgb, var(--danger) 45%, var(--line)); color: var(--danger); }

.panel { margin-top: 20px; padding: 26px; border: 1px solid var(--line); border-radius: 20px; background: var(--panel); box-shadow: var(--shadow); backdrop-filter: blur(16px); }
.auth-panel, .section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; }
.auth-form { display: flex; align-items: flex-end; gap: 10px; width: min(520px, 100%); }
label { display: grid; gap: 7px; color: var(--muted); font-size: 13px; }
input, select { min-height: 42px; padding: 9px 12px; border: 1px solid var(--line); border-radius: 10px; color: var(--text); background: transparent; outline: none; }
input:focus, select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 16%, transparent); }
.auth-form label { flex: 1; }

button { min-height: 40px; padding: 9px 15px; border: 1px solid transparent; border-radius: 10px; color: var(--text); background: transparent; transition: 140ms ease; }
.primary { color: white; background: var(--accent); font-weight: 680; }
.primary:hover:not(:disabled) { background: var(--accent-hover); }
.secondary { border-color: var(--line); background: color-mix(in srgb, var(--panel) 82%, var(--bg)); }
.secondary:hover:not(:disabled), .ghost:hover:not(:disabled) { border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); color: var(--accent); }
.danger-text { color: var(--danger); }
.danger-text:hover:not(:disabled) { background: color-mix(in srgb, var(--danger) 9%, transparent); }

.upload-card { margin-top: 22px; padding: 20px; border: 1px solid var(--line); border-radius: 16px; }
.file-picker { min-height: 128px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; padding: 24px; border: 1px dashed color-mix(in srgb, var(--accent) 45%, var(--line)); border-radius: 13px; text-align: center; cursor: pointer; }
.file-picker:hover { background: color-mix(in srgb, var(--accent) 5%, transparent); }
.file-picker input { position: absolute; opacity: 0; pointer-events: none; }
.file-picker-title { color: var(--text); font-size: 17px; font-weight: 680; }
.file-picker-meta { color: var(--muted); font-size: 13px; word-break: break-word; }
.upload-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.progress-wrap { margin-top: 18px; }
.progress-copy { display: flex; justify-content: space-between; gap: 16px; margin-bottom: 8px; color: var(--muted); font-size: 13px; }
.progress-track { height: 8px; overflow: hidden; border-radius: 999px; background: color-mix(in srgb, var(--line) 75%, transparent); }
.progress-bar { width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--accent), #6f8dff); transition: width 120ms linear; }

.object-heading { margin-top: 34px; }
.list-controls { display: flex; align-items: flex-end; gap: 10px; }
.object-list { display: grid; gap: 12px; margin-top: 18px; }
.object-card { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 18px; padding: 17px 18px; border: 1px solid var(--line); border-radius: 14px; }
.object-name { margin: 0; overflow: hidden; color: var(--text); font-size: 15px; font-weight: 680; text-overflow: ellipsis; white-space: nowrap; }
.object-meta, .object-key { margin-top: 5px; color: var(--muted); font-size: 12px; }
.object-key { overflow-wrap: anywhere; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.object-actions { display: flex; align-items: center; flex-wrap: wrap; justify-content: flex-end; gap: 7px; }
.object-actions button { min-height: 34px; padding: 6px 10px; font-size: 12px; }
.empty-state { padding: 34px; border: 1px dashed var(--line); border-radius: 14px; color: var(--muted); text-align: center; }

.log-panel { box-shadow: none; }
.event-log { display: grid; gap: 9px; max-height: 340px; overflow: auto; margin: 18px 0 0; padding: 0; list-style: none; }
.event-log li { display: grid; grid-template-columns: 74px 1fr; gap: 12px; padding: 10px 12px; border-radius: 9px; background: color-mix(in srgb, var(--bg) 68%, transparent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; line-height: 1.5; }
.event-time { color: var(--muted); }
.event-log [data-kind="error"] { color: var(--danger); }
.event-log [data-kind="success"] { color: var(--success); }
.event-log [data-kind="warning"] { color: var(--warning); }

@media (max-width: 760px) {
  .shell { width: min(100% - 20px, 1120px); padding-top: 28px; }
  .hero, .auth-panel, .section-heading { align-items: stretch; flex-direction: column; }
  .status-pill { align-self: flex-start; }
  .auth-form, .list-controls { width: 100%; flex-direction: column; align-items: stretch; }
  .panel { padding: 18px; border-radius: 16px; }
  .object-card { grid-template-columns: 1fr; }
  .object-actions { justify-content: flex-start; }
}