:root {
  --bg: #0c0f14;
  --bg-alt: #131820;
  --fg: #e7ecf2;
  --fg-mute: #8a96a8;
  --accent: #ff9a3c;
  --accent-2: #4ea1ff;
  --line: #1f2632;
  --ok: #4ade80;
  --err: #f87171;
  --code-bg: #0a0d12;
  --radius: 10px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg); font: 15px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre { font-family: "SF Mono", "Menlo", "Monaco", "Consolas", monospace; font-size: 13px; }
pre { background: var(--code-bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; overflow-x: auto; line-height: 1.5; }

.container { max-width: 880px; margin: 0 auto; padding: 32px 24px 80px; }
.container-narrow { max-width: 460px; margin: 0 auto; padding: 32px 24px 80px; }

header { padding: 16px 0 8px; display: flex; align-items: center; justify-content: space-between; }
header .brand { font-weight: 700; font-size: 16px; letter-spacing: -0.01em; }
header .brand .dot { color: var(--accent); }
header nav a { color: var(--fg-mute); margin-left: 18px; font-size: 14px; }
header nav a:hover { color: var(--fg); text-decoration: none; }

.hero { padding: 56px 0 32px; }
.hero h1 { font-size: 40px; line-height: 1.15; letter-spacing: -0.025em; margin: 0 0 14px; }
.hero h1 .accent { color: var(--accent); }
.hero p.lead { font-size: 17px; color: var(--fg-mute); max-width: 620px; margin: 0 0 24px; }

.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.tag { font-size: 12px; color: var(--fg-mute); border: 1px solid var(--line); background: var(--bg-alt); padding: 4px 10px; border-radius: 999px; }

section { margin-top: 48px; }
section h2 { font-size: 20px; letter-spacing: -0.01em; margin: 0 0 12px; }
section p.sub { color: var(--fg-mute); margin: 0 0 16px; }

.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 720px) { .grid { grid-template-columns: 1fr; } }

.card { background: var(--bg-alt); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; }
.card h3 { margin: 0 0 6px; font-size: 14px; letter-spacing: 0.01em; color: var(--fg); }
.card p { margin: 0; color: var(--fg-mute); font-size: 13px; }

form { background: var(--bg-alt); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 600px) { .row { grid-template-columns: 1fr; } }
label { display: block; font-size: 13px; color: var(--fg-mute); margin: 12px 0 6px; }
input { width: 100%; background: var(--code-bg); border: 1px solid var(--line); color: var(--fg); padding: 11px 12px; border-radius: 8px; font-size: 14px; font-family: inherit; }
input:focus { outline: none; border-color: var(--accent-2); }
button { margin-top: 18px; width: 100%; background: var(--accent); color: #1b0f00; border: none; padding: 12px 18px; border-radius: 8px; font-weight: 600; font-size: 15px; cursor: pointer; font-family: inherit; }
button:hover { filter: brightness(1.05); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
button.secondary { background: transparent; color: var(--fg); border: 1px solid var(--line); }
button.danger { background: transparent; color: var(--err); border: 1px solid var(--err); }
button.inline { width: auto; margin-top: 0; padding: 8px 14px; font-size: 13px; }

.result { margin-top: 18px; padding: 16px; border-radius: var(--radius); display: none; }
.result.show { display: block; }
.result.ok { background: rgba(74, 222, 128, 0.08); border: 1px solid rgba(74, 222, 128, 0.35); }
.result.err { background: rgba(248, 113, 113, 0.08); border: 1px solid rgba(248, 113, 113, 0.35); color: var(--err); }
.result.info { background: rgba(78, 161, 255, 0.08); border: 1px solid rgba(78, 161, 255, 0.35); }

.key-display { font-family: "SF Mono", "Menlo", "Monaco", "Consolas", monospace; font-size: 13px; padding: 12px; background: var(--code-bg); border-radius: 8px; word-break: break-all; user-select: all; margin: 10px 0 6px; }
.copy-btn { background: transparent; color: var(--accent-2); border: 1px solid var(--line); padding: 6px 10px; font-size: 12px; width: auto; margin-top: 8px; }

footer { color: var(--fg-mute); font-size: 13px; margin-top: 64px; padding-top: 20px; border-top: 1px solid var(--line); }

.endpoint-list { list-style: none; padding: 0; margin: 0; }
.endpoint-list li { padding: 8px 0; border-bottom: 1px solid var(--line); font-family: "SF Mono", "Menlo", monospace; font-size: 13px; color: var(--fg-mute); }
.endpoint-list li:last-child { border-bottom: none; }
.endpoint-list .verb { color: var(--accent); font-weight: 600; margin-right: 10px; }

/* Dashboard */
.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 720px) { .stat-grid { grid-template-columns: 1fr; } }
.stat { background: var(--bg-alt); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; }
.stat .label { font-size: 12px; color: var(--fg-mute); text-transform: uppercase; letter-spacing: 0.05em; }
.stat .value { font-size: 28px; font-weight: 700; margin-top: 4px; letter-spacing: -0.02em; }
.stat .sub { font-size: 12px; color: var(--fg-mute); margin-top: 4px; }

.tier-badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
.tier-badge.free { background: rgba(78, 161, 255, 0.15); color: var(--accent-2); }
.tier-badge.starter { background: rgba(255, 154, 60, 0.15); color: var(--accent); }
.tier-badge.pro, .tier-badge.enterprise { background: rgba(74, 222, 128, 0.15); color: var(--ok); }

.progress-bar { width: 100%; height: 6px; background: var(--code-bg); border-radius: 999px; margin-top: 10px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--accent); transition: width 0.3s; }
.progress-fill.warn { background: var(--err); }

.keys-table { width: 100%; background: var(--bg-alt); border: 1px solid var(--line); border-radius: var(--radius); border-collapse: collapse; }
.keys-table th, .keys-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--line); font-size: 13px; }
.keys-table th { color: var(--fg-mute); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; }
.keys-table tr:last-child td { border-bottom: none; }
.keys-table .prefix { font-family: "SF Mono", "Menlo", monospace; color: var(--fg-mute); }
.keys-table .status-active { color: var(--ok); }
.keys-table .status-inactive { color: var(--err); }

.empty-state { text-align: center; padding: 32px; color: var(--fg-mute); }
.spinner { display: inline-block; width: 16px; height: 16px; border: 2px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.flex-between { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.muted { color: var(--fg-mute); font-size: 13px; }