:root {
  --bg0: #f3f7f5;
  --bg1: #e7efeb;
  --ink: #10241f;
  --muted: #5b726a;
  --line: rgba(16, 36, 31, 0.12);
  --teal: #0f6b5c;
  --teal-deep: #0b3d36;
  --sand: #d8a24a;
  --ok: #1b7a4a;
  --err: #b42318;
  --warn: #9a6700;
  --card: rgba(255, 255, 255, 0.82);
  --shadow: 0 18px 50px rgba(11, 61, 54, 0.1);
  --font: "DM Sans", system-ui, sans-serif;
  --display: "Instrument Sans", "DM Sans", sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(900px 420px at 10% -10%, rgba(15, 107, 92, 0.16), transparent 60%),
    radial-gradient(700px 380px at 100% 0%, rgba(216, 162, 74, 0.18), transparent 55%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
}
a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-size: 0.9em; }

.page { width: min(980px, calc(100% - 2rem)); margin: 0 auto; padding: 1.25rem 0 2.5rem; }
.page-wide { width: min(1180px, calc(100% - 2rem)); }
.top { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 1.5rem; }
.brand {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--teal-deep);
  text-decoration: none;
  letter-spacing: -0.03em;
}
.brand-hero {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  color: var(--teal-deep);
  letter-spacing: -0.04em;
  margin: 0 0 0.45rem;
}
.nav-link {
  color: var(--ink);
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none !important;
  padding: 0.35rem 0.55rem;
  border-radius: 10px;
}
.nav-link:hover { background: rgba(15, 107, 92, 0.08); }
.pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.2rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 700;
  background: rgba(15, 107, 92, 0.1);
  color: var(--teal-deep);
  text-transform: capitalize;
}
.top-nav { display: flex; align-items: center; gap: 0.65rem; flex-wrap: wrap; }
.foot { margin-top: 2.5rem; font-size: 0.85rem; }
.lead.short { max-width: 34rem; }

.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.5rem;
  align-items: center;
  margin: 1rem 0 2rem;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  color: var(--teal);
  font-weight: 700;
  margin: 0 0 0.6rem;
}
.hero h1 {
  font-family: var(--display);
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  line-height: 1.12;
  letter-spacing: -0.035em;
  margin: 0 0 0.8rem;
}
.lead { color: var(--muted); font-size: 1.05rem; max-width: 38rem; }
.cta-row { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: 1.25rem; }
.hero-panel {
  min-height: 240px;
  border-radius: 28px;
  background:
    linear-gradient(145deg, rgba(11, 61, 54, 0.95), rgba(15, 107, 92, 0.85)),
    url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 30h60M30 0v60' stroke='rgba(255,255,255,0.06)'/%3E%3C/svg%3E");
  display: grid;
  place-items: center;
  padding: 1.25rem;
  box-shadow: var(--shadow);
}
.hero-card {
  width: min(100%, 280px);
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 18px;
  padding: 1.1rem 1.2rem;
  color: #fff;
}
.hero-kicker,
.hero-sub {
  color: rgba(255, 255, 255, 0.88);
  margin: 0;
}
.hero-status {
  font-family: var(--display);
  font-size: 1.6rem;
  margin: 0.35rem 0 0.55rem;
  color: #fff;
}
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.features article {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.1rem 1.15rem;
  backdrop-filter: blur(8px);
}
.features h3 { margin: 0 0 0.4rem; font-family: var(--display); font-size: 1.05rem; }
.features p { margin: 0; color: var(--muted); font-size: 0.95rem; }

.auth-card {
  width: min(420px, 100%);
  margin: 2rem auto;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 1.5rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}
.auth-card-lg { width: min(480px, 100%); }
.auth-card h1 { font-family: var(--display); margin: 0 0 0.35rem; font-size: 1.55rem; }
.center { text-align: center; }

.admin-hero {
  display: flex;
  justify-content: space-between;
  gap: 1.25rem;
  align-items: flex-end;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}
.admin-hero h1 {
  font-family: var(--display);
  font-size: clamp(1.45rem, 3vw, 2rem);
  letter-spacing: -0.03em;
  margin: 0 0 0.4rem;
}
.stat-row { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.stat {
  min-width: 110px;
  padding: 0.85rem 1rem;
  border-radius: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.stat-num {
  display: block;
  font-family: var(--display);
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--teal-deep);
  letter-spacing: -0.03em;
}
.stat-label { color: var(--muted); font-size: 0.8rem; font-weight: 600; }
.table-wrap { overflow-x: auto; margin-top: 0.75rem; }
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
.data-table th {
  text-align: left;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  padding: 0.55rem 0.45rem;
  border-bottom: 1px solid var(--line);
}
.data-table td {
  padding: 0.75rem 0.45rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.row-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  white-space: nowrap;
}
.otp-code {
  font-size: 1.05rem;
  letter-spacing: 0.12em;
  color: var(--teal-deep);
  font-weight: 700;
}
.admin-reset {
  width: 100%;
  margin-top: 0.35rem;
}
.admin-reset summary { cursor: pointer; font-weight: 600; }
.hide-sm { display: inline; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.form { display: grid; gap: 0.85rem; margin-top: 1rem; }
.form label { display: grid; gap: 0.35rem; font-weight: 600; font-size: 0.92rem; }
.form input, .form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.7rem 0.8rem;
  font: inherit;
  background: #fff;
}
.form textarea { resize: vertical; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border: 0;
  border-radius: 12px;
  padding: 0.7rem 1rem;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none !important;
}
.btn-sm { padding: 0.4rem 0.7rem; font-size: 0.88rem; border-radius: 10px; }
.btn-block { width: 100%; }
.btn-primary { background: var(--teal); color: #fff; }
.btn-primary:hover { background: var(--teal-deep); }
.btn-accent { background: linear-gradient(135deg, #c9892d, #d8a24a); color: #1a1305; }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-danger { background: #fdecec; color: var(--err); }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.mt { margin-top: 1rem; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 1.15rem 1.2rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}
.card-head { display: flex; justify-content: space-between; align-items: center; gap: 0.75rem; margin-bottom: 0.5rem; }
.card h2 { margin: 0; font-family: var(--display); font-size: 1.15rem; }

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.15rem 0.55rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: lowercase;
}
.badge-ok { background: #e7f6ee; color: var(--ok); }
.badge-warn { background: #fff4df; color: var(--warn); }
.badge-info { background: #e7f2f0; color: var(--teal); }
.badge-muted { background: #eef1f0; color: var(--muted); }

.qr-wrap { text-align: center; margin: 0.75rem 0; }
.qr-wrap img {
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 0.5rem;
}
.link-methods h3 {
  font-family: var(--display);
  font-size: 1rem;
  margin: 0.85rem 0 0.35rem;
}
.link-tabs {
  display: flex;
  gap: 0.35rem;
  margin: 0.85rem 0 1rem;
  padding: 0.25rem;
  border-radius: 14px;
  background: rgba(15, 107, 92, 0.08);
  border: 1px solid var(--line);
}
.link-tab {
  flex: 1;
  border: 0;
  border-radius: 11px;
  padding: 0.55rem 0.7rem;
  font: inherit;
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  background: transparent;
  color: var(--muted);
}
.link-tab.is-active {
  background: #fff;
  color: var(--teal-deep);
  box-shadow: 0 1px 0 rgba(16, 36, 31, 0.06);
}
.link-panel h3 {
  font-family: var(--display);
  font-size: 1rem;
  margin: 0 0 0.35rem;
}
.steps {
  margin: 0.75rem 0 1rem;
  padding-left: 1.2rem;
  color: var(--muted);
  font-size: 0.88rem;
  display: grid;
  gap: 0.35rem;
}
.steps li { padding-left: 0.15rem; }
.auto-status {
  margin: 0.75rem 0;
  padding: 0.75rem 0.9rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(15, 107, 92, 0.05);
}
.auto-status p { margin: 0; }
.advanced {
  border-top: 1px dashed var(--line);
  padding-top: 0.75rem;
}
.advanced summary { cursor: pointer; font-weight: 600; }
.pair-code-box {
  margin-top: 0.75rem;
  padding: 0.9rem 1rem;
  border-radius: 16px;
  border: 1px dashed rgba(15, 107, 92, 0.35);
  background: rgba(15, 107, 92, 0.06);
  text-align: center;
}
.pair-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  font-weight: 800;
  letter-spacing: 0.18em;
  color: var(--teal-deep);
}
.ok-text { color: var(--ok); font-weight: 600; }
.err-text { color: var(--err); }
.tiny { font-size: 0.8rem; }
.muted { color: var(--muted); }

.alert {
  border-radius: 14px;
  padding: 0.75rem 0.9rem;
  margin-bottom: 1rem;
  font-weight: 600;
}
.alert-error { background: #fdecec; color: var(--err); }
.alert-ok { background: #e7f6ee; color: var(--ok); }

.list { list-style: none; padding: 0; margin: 0.75rem 0 0; display: grid; gap: 0.65rem; }
.list li {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.65rem 0;
  border-top: 1px solid var(--line);
}
.list.logs li { display: block; }
.msg { margin-top: 0.25rem; white-space: pre-wrap; word-break: break-word; }
.codebox {
  margin-top: 0.85rem;
  background: #0b2e2a;
  color: #e7f4f0;
  border-radius: 14px;
  padding: 0.9rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.8rem;
  white-space: pre-wrap;
  word-break: break-word;
}
.inline-form { display: flex; gap: 0.5rem; margin-top: 0.75rem; }
.inline-form input {
  flex: 1;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.45rem 0.65rem;
  font: inherit;
}

.nav-user {
  color: var(--teal-deep);
  font-weight: 700;
  font-size: 0.92rem;
  text-decoration: none !important;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: rgba(15, 107, 92, 0.1);
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.nav-user:hover {
  background: rgba(15, 107, 92, 0.18);
}

.profile-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 1rem;
  align-items: start;
}
.profile-head {
  display: flex;
  gap: 0.9rem;
  align-items: center;
  margin-bottom: 1rem;
}
.profile-avatar {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.35rem;
  color: #fff;
  background: linear-gradient(145deg, var(--teal-deep), var(--teal));
  flex-shrink: 0;
}
.profile-name {
  font-family: var(--display);
  font-size: 1.45rem;
  margin: 0;
  letter-spacing: -0.03em;
}
.profile-meta {
  margin: 0;
  display: grid;
  gap: 0.75rem;
}
.profile-meta > div {
  display: grid;
  gap: 0.15rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--line);
}
.profile-meta dt {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 700;
}
.profile-meta dd { margin: 0; font-weight: 600; }
.soft-hr {
  border: 0;
  border-top: 1px dashed var(--line);
  margin: 1.1rem 0;
}

@media (max-width: 860px) {
  .hero, .features, .grid-2, .profile-grid { grid-template-columns: 1fr; }
  .hide-sm { display: none; }
  .admin-hero { align-items: flex-start; }
}