:root {
  --bg: #0b1020;
  --bg-soft: #121a30;
  --card: #16203a;
  --border: #24304f;
  --text: #e8edf7;
  --muted: #9aa7c2;
  --primary: #4f8cff;
  --primary-dark: #3b74e0;
  --up: #2fd07a;
  --down: #ff5a6a;
  --warn: #ffb638;
  --radius: 12px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: 10px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: background 0.15s, transform 0.05s, border-color 0.15s;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { background: var(--bg-soft); }
.btn-danger { background: transparent; color: var(--down); border-color: rgba(255, 90, 106, 0.4); }
.btn-danger:hover { background: rgba(255, 90, 106, 0.1); }
.btn-sm { padding: 6px 12px; font-size: 13px; border-radius: 8px; }
.btn-lg { padding: 14px 26px; font-size: 17px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── Header ── */
.site-header, .app-header {
  border-bottom: 1px solid var(--border);
  background: rgba(11, 16, 32, 0.85);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { font-size: 20px; font-weight: 700; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand strong { color: var(--primary); }
.brand-mark { margin-right: 4px; }
.brand.center { display: block; text-align: center; margin-bottom: 18px; }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a { color: var(--muted); font-weight: 500; }
.nav a:hover { color: var(--text); text-decoration: none; }
.nav .btn { color: var(--text); }

/* ── Hero ── */
.hero { padding: 90px 0 60px; text-align: center; background: radial-gradient(1200px 400px at 50% -50px, rgba(79, 140, 255, 0.18), transparent); }
.hero-eyebrow { text-transform: uppercase; letter-spacing: 0.08em; font-size: 13px; font-weight: 700; color: var(--primary); margin: 0 0 14px; }
.hero h1 { font-size: 52px; line-height: 1.1; margin: 0 0 20px; letter-spacing: -1px; }
.hero-sub { font-size: 20px; color: var(--muted); max-width: 620px; margin: 0 auto 32px; }
.hero-cta { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.hero-note { color: var(--muted); font-size: 14px; }

/* ── Features ── */
.features { padding: 60px 0; }
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 22px; }
.feature { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; }
.feature-icon { font-size: 30px; margin-bottom: 10px; }
.feature h3 { margin: 0 0 8px; font-size: 19px; }
.feature p { margin: 0; color: var(--muted); }

/* ── Pricing ── */
.pricing { padding: 70px 0; text-align: center; }
.pricing h2 { font-size: 36px; margin: 0 0 8px; }
.section-sub { color: var(--muted); margin: 0 0 40px; }
.price-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; max-width: 720px; margin: 0 auto; }
.price-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px 28px; text-align: left; position: relative; }
.price-card.featured { border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary), var(--shadow); }
.price-badge { position: absolute; top: -12px; right: 20px; background: var(--primary); color: #fff; font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 20px; }
.price-card h3 { margin: 0 0 6px; font-size: 22px; }
.price { font-size: 40px; font-weight: 800; margin: 0 0 20px; }
.price span { font-size: 16px; font-weight: 500; color: var(--muted); }
.price-card ul { list-style: none; padding: 0; margin: 0 0 26px; }
.price-card li { padding: 6px 0; color: var(--muted); }

/* ── CTA band ── */
.cta-band { padding: 70px 0; text-align: center; background: var(--bg-soft); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.cta-band h2 { font-size: 30px; margin: 0 0 24px; }

/* ── Footer ── */
.site-footer { padding: 30px 0; text-align: center; color: var(--muted); font-size: 14px; }
.footer-links { margin-bottom: 8px; }
.footer-links a { color: var(--muted); }
.footer-links a:hover { color: var(--text); }

/* ── Blog ── */
.blog-wrap { max-width: 760px; margin: 0 auto; padding: 50px 20px 70px; }
.blog-wrap h1 { font-size: 40px; line-height: 1.15; letter-spacing: -0.5px; margin: 0 0 8px; }
.blog-meta { color: var(--muted); font-size: 14px; margin-bottom: 34px; }
.blog-wrap h2 { font-size: 26px; margin: 40px 0 12px; }
.blog-wrap h3 { font-size: 20px; margin: 28px 0 8px; }
.blog-wrap p, .blog-wrap li { font-size: 17px; color: #cdd6ea; }
.blog-wrap ul, .blog-wrap ol { padding-left: 22px; }
.blog-wrap li { margin-bottom: 8px; }
.blog-wrap blockquote { border-left: 3px solid var(--primary); margin: 22px 0; padding: 4px 0 4px 18px; color: var(--muted); font-style: italic; }
.blog-cta { background: var(--card); border: 1px solid var(--primary); border-radius: var(--radius); padding: 26px; text-align: center; margin: 44px 0 10px; }
.blog-cta h3 { margin: 0 0 14px; }
.post-list { list-style: none; padding: 0; }
.post-list li { margin-bottom: 22px; padding-bottom: 22px; border-bottom: 1px solid var(--border); }
.post-list a { font-size: 21px; font-weight: 600; }
.post-list p { margin: 6px 0 0; color: var(--muted); font-size: 16px; }
.back-link { display: inline-block; margin-bottom: 24px; color: var(--muted); font-size: 14px; }

/* ── Auth ── */
.auth-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 20px; }
.auth-card { width: 100%; max-width: 400px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 36px; box-shadow: var(--shadow); }
.auth-card h1 { margin: 0 0 6px; font-size: 26px; text-align: center; }
.auth-sub { color: var(--muted); text-align: center; margin: 0 0 26px; }
.auth-switch { text-align: center; margin: 20px 0 0; color: var(--muted); font-size: 14px; }
.auth-error, .form-error { color: var(--down); font-size: 14px; margin: 12px 0 0; min-height: 18px; text-align: center; }

label { display: block; margin-bottom: 16px; }
label > span { display: block; font-size: 14px; color: var(--muted); margin-bottom: 6px; }
input, select {
  width: 100%;
  padding: 11px 13px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 9px;
  color: var(--text);
  font-size: 15px;
}
input:focus, select:focus { outline: none; border-color: var(--primary); }

/* ── App dashboard ── */
.app-body { background: var(--bg); min-height: 100vh; }
.app-header-right { display: flex; align-items: center; gap: 14px; }
.user-email { color: var(--muted); font-size: 14px; }
.plan-pill { font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 20px; background: var(--border); color: var(--muted); text-transform: uppercase; }
.plan-pill.pro { background: var(--primary); color: #fff; }
.app-main { padding: 34px 20px 60px; }
.app-toolbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.app-toolbar h1 { margin: 0; font-size: 26px; }

.upgrade-banner { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; background: linear-gradient(90deg, rgba(79,140,255,0.14), rgba(79,140,255,0.04)); border: 1px solid var(--primary); border-radius: var(--radius); padding: 14px 18px; margin-bottom: 22px; }
.upgrade-banner[hidden] { display: none; }

.monitor-list { display: grid; gap: 14px; }
.monitor-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; }
.monitor-main { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.status-dot { width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0; }
.status-dot.up { background: var(--up); box-shadow: 0 0 0 4px rgba(47, 208, 122, 0.15); }
.status-dot.down { background: var(--down); box-shadow: 0 0 0 4px rgba(255, 90, 106, 0.15); }
.status-dot.pending { background: var(--muted); }
.monitor-name { font-weight: 600; font-size: 17px; }
.monitor-url { color: var(--muted); font-size: 14px; }
.monitor-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; padding: 14px 0; border-top: 1px solid var(--border); }
.stat { display: flex; flex-direction: column; }
.stat-label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.03em; }
.stat-value { font-weight: 600; font-size: 16px; }
.status-up { color: var(--up); }
.status-down { color: var(--down); }
.status-pending { color: var(--muted); }
.monitor-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 12px; border-top: 1px solid var(--border); flex-wrap: wrap; }
.ssl { font-size: 13px; color: var(--muted); }
.ssl-warn { color: var(--warn); }
.monitor-actions { display: flex; gap: 8px; }

.empty-state { text-align: center; padding: 60px 20px; color: var(--muted); border: 1px dashed var(--border); border-radius: var(--radius); }

/* ── Modal ── */
.modal-backdrop { position: fixed; inset: 0; background: rgba(3, 6, 15, 0.7); display: flex; align-items: center; justify-content: center; padding: 20px; z-index: 50; }
/* The [hidden] attribute must win over the display:flex above, otherwise
   the modal can never be dismissed. */
.modal-backdrop[hidden] { display: none; }
.modal { width: 100%; max-width: 440px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.modal h2 { margin: 0 0 20px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 8px; }

/* ── Toggle + footer ── */
.monitor-footer-left { display: flex; align-items: center; gap: 16px; }
.toggle { display: inline-flex; align-items: center; gap: 6px; margin: 0; cursor: pointer; font-size: 13px; color: var(--muted); }
.toggle input { width: auto; margin: 0; accent-color: var(--primary); }
.toggle span { display: inline; }

/* ── Settings ── */
.form-hint { font-size: 13px; color: var(--muted); margin: 4px 0 18px; }
.settings-status-row { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 14px; background: var(--bg-soft); border: 1px solid var(--border); border-radius: 10px; margin-bottom: 8px; }

/* ── Public status page ── */
.sp-overall { display: flex; align-items: center; gap: 12px; font-size: 22px; font-weight: 700; padding: 22px 24px; border-radius: var(--radius); border: 1px solid var(--border); background: var(--card); margin-bottom: 22px; }
.sp-overall.up { border-color: var(--up); }
.sp-overall.down { border-color: var(--down); }
.sp-list { display: grid; gap: 10px; }
.sp-row { display: grid; grid-template-columns: auto 1fr auto auto; align-items: center; gap: 14px; padding: 16px 20px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); }
.sp-name { font-weight: 600; }
.sp-uptime { color: var(--muted); font-size: 14px; }
.sp-status { font-weight: 600; font-size: 14px; }
.sp-foot { text-align: center; color: var(--muted); font-size: 13px; margin-top: 26px; }

/* ── Responsive ── */
@media (max-width: 640px) {
  .hero h1 { font-size: 38px; }
  .nav { gap: 12px; }
  .nav a:not(.btn) { display: none; }
  .monitor-stats { grid-template-columns: repeat(2, 1fr); }
}