:root {
  color-scheme: dark;
  --bg: #0b1014;
  --bg-pattern: rgba(255, 255, 255, 0.035);
  --surface: #151c22;
  --surface-alt: #0f161c;
  --surface-raised: #1d262e;
  --text: #edf3f7;
  --muted: #a6b2bc;
  --border: #33414c;
  --accent: #43d9ad;
  --accent-strong: #13b986;
  --accent-text: #061512;
  --success-bg: #0c2f28;
  --success-border: #2f9c7d;
  --error-bg: #3a161c;
  --error-border: #c95769;
  --focus: #ffd166;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Aptos", "Segoe UI", system-ui, sans-serif;
  color: var(--text);
  background:
    linear-gradient(135deg, rgba(67, 217, 173, 0.12), transparent 34rem),
    radial-gradient(circle at top right, rgba(255, 209, 102, 0.09), transparent 28rem),
    repeating-linear-gradient(135deg, var(--bg-pattern) 0 1px, transparent 1px 14px),
    var(--bg);
  line-height: 1.4;
}

body.auth-page {
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
}

body.app-page {
  padding: 1rem;
}

a {
  color: var(--accent);
  text-underline-offset: 0.16em;
}

a:hover {
  color: #8cf0d0;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.auth-shell,
.app-grid,
.app-header {
  width: min(100%, 1100px);
  margin: 0 auto;
}

.auth-shell {
  max-width: 420px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 18px 70px rgba(0, 0, 0, 0.35);
  padding: 1.25rem;
}

.auth-shell h1,
.app-header h1,
.panel h2 {
  margin: 0 0 0.75rem;
}

.app-header {
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.app-grid {
  display: grid;
  gap: 1rem;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  padding: 1rem;
}

.field {
  display: grid;
  gap: 0.35rem;
}

.auth-form,
.download-form {
  display: grid;
  gap: 0.85rem;
}

input, button, .button-link {
  font: inherit;
}

input {
  width: 100%;
  border: 1px solid var(--border);
  background: var(--surface-alt);
  color: var(--text);
  padding: 0.7rem 0.8rem;
}

button,
.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.5rem;
  padding: 0.55rem 0.95rem;
  border: 1px solid var(--accent-strong);
  background: var(--accent);
  color: var(--accent-text);
  text-decoration: none;
  cursor: pointer;
  font-weight: 700;
}

button:hover,
.button-link:hover {
  background: #8cf0d0;
  color: var(--accent-text);
}

.message {
  margin: 0;
  padding: 0.75rem 0.9rem;
  border: 1px solid transparent;
}

.message-success {
  background: var(--success-bg);
  border-color: var(--success-border);
  color: #d9fff3;
}

.message-error {
  background: var(--error-bg);
  border-color: var(--error-border);
  color: #ffe4e8;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  text-align: left;
  padding: 0.55rem 0.4rem;
  border-top: 1px solid var(--border);
  vertical-align: top;
}

th {
  font-size: 0.9rem;
  color: var(--muted);
  border-top: 0;
  background: var(--surface-alt);
}

.truncate {
  max-width: 0;
  width: 45%;
  word-break: break-word;
}

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

pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  padding: 1rem;
  overflow-x: auto;
}

@media (min-width: 780px) {
  .app-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .app-grid > :first-child {
    grid-column: 1 / -1;
  }
}