/* Rukka — Notion / Vercel inspired design system */

:root {
  --bg: #fafafa;
  --fg: #171717;
  --muted: #737373;
  --border: #e5e5e5;
  --card: #ffffff;
  --accent: #002039;
  --accent-hover: #003a5c;
  --green: #76bd33;
  --ring: rgba(0, 32, 57, 0.12);
}

body {
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
  -webkit-font-smoothing: antialiased;
}

/* Subtle grid + glow (Vercel-style hero backdrop) */
.rukka-bg {
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(118, 189, 51, 0.08), transparent),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(0, 32, 57, 0.06), transparent),
    linear-gradient(to right, rgba(0, 0, 0, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 0, 0, 0.03) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 48px 48px, 48px 48px;
}

.rukka-header {
  background: rgba(250, 250, 250, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Forms */
.form-input,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="url"],
textarea,
select {
  width: 100%;
  border-radius: 0.5rem;
  border: 1px solid var(--border);
  background: var(--card);
  padding: 0.625rem 0.875rem;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--fg);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-input:focus,
input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: #a3a3a3;
  box-shadow: 0 0 0 3px var(--ring);
}

textarea {
  resize: vertical;
  min-height: 5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.625rem 1.125rem;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--fg);
  color: #fff;
}

.btn-primary:hover {
  background: #404040;
}

.btn-secondary {
  background: var(--card);
  color: var(--fg);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: #f5f5f5;
  border-color: #d4d4d4;
}

.btn-ghost {
  color: var(--muted);
  background: transparent;
}

.btn-ghost:hover {
  color: var(--fg);
  background: rgba(0, 0, 0, 0.04);
}

.btn-accent {
  background: var(--accent);
  color: #fff;
}

.btn-accent:hover {
  background: var(--accent-hover);
}

/* Cards & layout */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
}

.card-hover:hover {
  border-color: #d4d4d4;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
}

.stat-tile {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 0.625rem;
  padding: 1.25rem;
}

.link {
  color: var(--fg);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: #d4d4d4;
}

.link:hover {
  text-decoration-color: var(--fg);
}

.nav-link {
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

.nav-link:hover {
  color: var(--fg);
}

.nav-link-submit {
  background: none;
  border: none;
  cursor: pointer;
  font: inherit;
}

.preset-amt.active {
  border-color: var(--fg);
  background: var(--fg);
  color: #fff;
}

/* Tables */
.rukka-table th {
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* Messages */
.alert {
  border-radius: 0.5rem;
  border: 1px solid var(--border);
  background: var(--card);
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
}

.alert-success {
  border-color: rgba(118, 189, 51, 0.35);
  background: rgba(118, 189, 51, 0.08);
}

.alert-error {
  border-color: rgba(239, 68, 68, 0.25);
  background: rgba(239, 68, 68, 0.06);
  color: #b91c1c;
}

/* Staff Tech page — command blocks */
.tech-pre {
  font-size: 0.75rem;
  line-height: 1.6;
  background: #171717;
  color: #e5e5e5;
  padding: 1rem 1.25rem;
  border-radius: 0.5rem;
  overflow-x: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  white-space: pre-wrap;
  word-break: break-word;
}