/* ============================================================
   WA Gateway SaaS — design system
   ============================================================ */

/* ── Tokens ───────────────────────────────────────────────── */
:root {
  --bg:          #07090d;
  --bg-1:        #0d1117;
  --bg-2:        #111827;
  --bg-3:        #1a2232;
  --border:      #1e2a3a;
  --border-soft: #141d2b;

  --text:        #f0f4f8;
  --text-2:      #8fa3b8;
  --text-3:      #4d6175;

  --green:       #22d97a;
  --green-dim:   rgba(34,217,122,.1);
  --green-glow:  rgba(34,217,122,.18);
  --amber:       #f59e0b;
  --red:         #f87171;
  --violet:      #a78bfa;
  --blue:        #60a5fa;

  --radius:    12px;
  --radius-sm: 8px;
  --radius-xs: 5px;

  --sans: 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', ui-monospace, monospace;

  --sidebar-w: 252px;
  --header-h:  60px;
}

/* ── Reset ────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { height: 100%; -webkit-font-smoothing: antialiased; }
body { font-family: var(--sans); background: var(--bg); color: var(--text);
       font-size: 14px; line-height: 1.6; min-height: 100%; }
a { color: var(--green); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
button { font-family: var(--sans); cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: var(--sans); }
table { border-collapse: collapse; width: 100%; }

/* ── Typography ───────────────────────────────────────────── */
.text-xs   { font-size: 11.5px; }
.text-sm   { font-size: 13px; }
.text-base { font-size: 14px; }
.text-lg   { font-size: 16px; }
.text-xl   { font-size: 20px; }
.text-2xl  { font-size: 24px; }
.text-3xl  { font-size: 30px; }
.font-mono { font-family: var(--mono); }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.text-muted { color: var(--text-2); }
.text-faint { color: var(--text-3); }
.text-green { color: var(--green); }
.text-red   { color: var(--red); }
.text-amber { color: var(--amber); }
.text-violet{ color: var(--violet); }
.uppercase  { text-transform: uppercase; letter-spacing: .06em; }

/* ── Shell (sidebar + main) ───────────────────────────────── */
.shell { display: grid; grid-template-columns: var(--sidebar-w) 1fr; min-height: 100vh; }

/* ── Sidebar ──────────────────────────────────────────────── */
.sidebar {
  background: var(--bg-1);
  border-right: 1px solid var(--border);
  position: sticky; top: 0; height: 100vh;
  display: flex; flex-direction: column;
  overflow-y: auto; overflow-x: hidden;
}
.sidebar-logo {
  display: flex; align-items: center; gap: 11px;
  padding: 22px 20px 18px;
  border-bottom: 1px solid var(--border-soft);
}
.logo-mark {
  width: 34px; height: 34px; flex: none; border-radius: 9px;
  background: radial-gradient(circle at 30% 30%, var(--green), transparent 65%),
              linear-gradient(135deg, #2a3f5a, #111827);
  box-shadow: 0 0 0 1px var(--border), 0 0 20px var(--green-glow);
  position: relative; overflow: hidden;
}
.logo-mark::after {
  content: ''; position: absolute; inset: 0;
  background: repeating-linear-gradient(90deg,transparent 0 3px,rgba(0,0,0,.2) 3px 4px);
}
.logo-name  { font-weight: 700; font-size: 15px; letter-spacing: -.01em; }
.logo-sub   { font-size: 10.5px; font-family: var(--mono); color: var(--text-3); }

.sidebar-nav { flex: 1; padding: 10px 10px 0; display: flex; flex-direction: column; gap: 2px; }
.nav-section {
  font: 600 10px var(--mono); letter-spacing: .1em; text-transform: uppercase;
  color: var(--text-3); padding: 14px 10px 5px;
}
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: var(--radius-sm);
  color: var(--text-2); font-size: 13.5px; font-weight: 500;
  transition: background .12s, color .12s;
  position: relative;
}
.nav-item:hover { background: var(--bg-2); color: var(--text); text-decoration: none; }
.nav-item.active {
  background: var(--bg-2); color: var(--text);
  box-shadow: inset 2px 0 0 var(--green);
}
.nav-item .nav-icon { width: 17px; height: 17px; flex: none; opacity: .7; }
.nav-item.active .nav-icon { opacity: 1; }
.nav-badge {
  margin-left: auto; background: var(--green-dim); color: var(--green);
  font: 600 10px var(--mono); padding: 1px 6px; border-radius: 20px;
  border: 1px solid var(--green);
}

.sidebar-footer {
  margin-top: auto; border-top: 1px solid var(--border-soft);
  padding: 14px 16px; display: flex; align-items: center; gap: 10px;
}
.user-avatar {
  width: 32px; height: 32px; border-radius: 50%; flex: none;
  background: linear-gradient(135deg, var(--green), #0d6e3f);
  display: flex; align-items: center; justify-content: center;
  font: 700 13px var(--sans); color: #04140d;
}
.user-name  { font-size: 13px; font-weight: 600; }
.user-email { font-size: 11px; font-family: var(--mono); color: var(--text-3);
               overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 140px; }
.user-signout { margin-left: auto; color: var(--text-3); font-size: 12px; flex: none; }
.user-signout:hover { color: var(--red); text-decoration: none; }

/* ── Main content ─────────────────────────────────────────── */
.main { display: flex; flex-direction: column; min-height: 100vh; overflow: hidden; }
.page { padding: 32px 40px 60px; max-width: 1160px; width: 100%; }

/* ── Page header ──────────────────────────────────────────── */
.page-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 20px; margin-bottom: 28px; flex-wrap: wrap;
}
.page-title { font-size: 24px; font-weight: 700; letter-spacing: -.02em; line-height: 1.2; }
.page-sub   { font-size: 13.5px; color: var(--text-2); margin-top: 4px; }
.page-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

/* ── Cards ────────────────────────────────────────────────── */
.card {
  background: var(--bg-1); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px;
}
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 18px; gap: 12px;
}
.card-title { font-size: 15px; font-weight: 600; }
.card-grid  { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr)); gap: 14px; }

/* ── Stat cards ───────────────────────────────────────────── */
.stat {
  background: var(--bg-1); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px 20px;
  transition: border-color .15s;
}
.stat:hover { border-color: var(--border); }
.stat-label {
  font: 600 10.5px var(--mono); text-transform: uppercase;
  letter-spacing: .07em; color: var(--text-3); margin-bottom: 8px;
}
.stat-value {
  font: 700 28px var(--mono); letter-spacing: -.02em;
  line-height: 1; color: var(--text);
}
.stat-value.accent { color: var(--green); }
.stat-unit  { font-size: 14px; color: var(--text-3); font-weight: 500; }
.stat-sub   { font-size: 12px; font-family: var(--mono); color: var(--text-3); margin-top: 6px; }
.stat-trend { font-size: 11.5px; margin-top: 4px; }
.stat-trend.up   { color: var(--green); }
.stat-trend.down { color: var(--red); }

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  font: 600 13.5px var(--sans); padding: 9px 16px;
  border-radius: var(--radius-sm); border: 1px solid transparent;
  transition: .12s; white-space: nowrap; cursor: pointer; line-height: 1;
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.btn svg { width: 15px; height: 15px; flex: none; }

.btn-primary  { background: var(--green); color: #04140d; }
.btn-primary:hover { background: #3cf090; text-decoration: none; }

.btn-secondary { background: var(--bg-3); color: var(--text); border-color: var(--border); }
.btn-secondary:hover { background: var(--bg-2); border-color: var(--text-3); text-decoration: none; }

.btn-ghost { background: transparent; color: var(--text-2); border-color: var(--border); }
.btn-ghost:hover { color: var(--text); border-color: var(--text-3); text-decoration: none; }

.btn-danger { background: transparent; color: var(--red); border-color: rgba(248,113,113,.3); }
.btn-danger:hover { background: rgba(248,113,113,.08); text-decoration: none; }

.btn-sm { padding: 6px 12px; font-size: 12.5px; }
.btn-lg { padding: 12px 22px; font-size: 15px; }
.btn-block { width: 100%; justify-content: center; }
.btn-icon { padding: 8px; }

/* ── Forms ────────────────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-row   { display: flex; gap: 14px; flex-wrap: wrap; }
.form-row .form-group { flex: 1; min-width: 180px; }
.form-label {
  font: 600 11.5px var(--sans); text-transform: uppercase;
  letter-spacing: .04em; color: var(--text-2);
}
.form-hint { font-size: 12px; color: var(--text-3); }

.input {
  background: var(--bg); border: 1px solid var(--border);
  color: var(--text); border-radius: var(--radius-sm);
  padding: 9px 12px; font: 13.5px var(--sans);
  width: 100%; transition: border-color .15s, box-shadow .15s;
  outline: none;
}
.input:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--green-dim);
}
.input::placeholder { color: var(--text-3); }
.input-mono { font-family: var(--mono); font-size: 13px; }
select.input { cursor: pointer; }
textarea.input { resize: vertical; min-height: 90px; line-height: 1.5; }
input[type=file].input { padding: 7px 12px; }
.input-group { display: flex; gap: 0; }
.input-group .input { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.input-group .btn   { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; border-left: 0; }

.check { display: flex; align-items: center; gap: 8px; cursor: pointer; font-size: 13.5px; color: var(--text-2); }
.check input { width: 15px; height: 15px; accent-color: var(--green); cursor: pointer; }

/* ── Type tabs (send page) ────────────────────────────────── */
.type-tabs { display: flex; gap: 4px; flex-wrap: wrap; margin-bottom: 20px; padding-bottom: 18px; border-bottom: 1px solid var(--border-soft); }
.type-tab {
  font: 500 13px var(--sans); padding: 6px 13px;
  border-radius: 20px; border: 1px solid transparent;
  color: var(--text-2); transition: .12s; cursor: pointer;
  background: none;
}
.type-tab:hover { color: var(--text); }
.type-tab.active {
  color: var(--green); border-color: rgba(34,217,122,.35);
  background: var(--green-dim);
}
.type-panel { display: none; }
.type-panel.active { display: block; }

/* ── Tables ───────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
.data-table { font-size: 13.5px; }
.data-table th {
  padding: 10px 18px; text-align: left;
  font: 600 11px var(--mono); text-transform: uppercase;
  letter-spacing: .05em; color: var(--text-3);
  border-bottom: 1px solid var(--border-soft); white-space: nowrap;
}
.data-table td {
  padding: 12px 18px; border-bottom: 1px solid var(--border-soft);
  color: var(--text-2);
}
.data-table tr:last-child td { border-bottom: 0; }
.data-table tr:hover td { background: var(--bg); }
.td-strong { color: var(--text); font-weight: 500; }
.td-mono   { font-family: var(--mono); font-size: 12.5px; }
.td-dim    { color: var(--text-3); }

/* ── Badges ───────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  font: 600 10.5px var(--mono); text-transform: uppercase;
  letter-spacing: .05em; padding: 2px 8px; border-radius: 20px;
  border: 1px solid var(--border); color: var(--text-3); white-space: nowrap;
}
.badge::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: currentColor; flex: none; }
.badge-green  { color: var(--green); border-color: rgba(34,217,122,.35); background: var(--green-dim); }
.badge-amber  { color: var(--amber); border-color: rgba(245,158,11,.35); background: rgba(245,158,11,.08); }
.badge-red    { color: var(--red);   border-color: rgba(248,113,113,.35); background: rgba(248,113,113,.08); }
.badge-violet { color: var(--violet);border-color: rgba(167,139,250,.35); background: rgba(167,139,250,.08); }
.badge-blue   { color: var(--blue);  border-color: rgba(96,165,250,.35);  background: rgba(96,165,250,.08); }
.badge-flat   { color: var(--text-3); background: var(--bg-3); border-color: var(--border); }

/* ── Progress ─────────────────────────────────────────────── */
.progress { height: 6px; background: var(--bg); border-radius: 20px; overflow: hidden; border: 1px solid var(--border-soft); }
.progress-fill { height: 100%; background: linear-gradient(90deg,var(--green),#3cf090); border-radius: 20px; transition: width .4s; }
.progress-fill.warn { background: linear-gradient(90deg,var(--amber),#fcd34d); }
.progress-fill.full { background: linear-gradient(90deg,var(--red),#fca5a5); }

/* ── Flash / alerts ───────────────────────────────────────── */
.flash {
  padding: 11px 16px; border-radius: var(--radius-sm);
  font-size: 13.5px; margin-bottom: 16px;
  border: 1px solid var(--border); border-left-width: 3px;
  display: flex; align-items: center; gap: 10px;
}
.flash-success { border-left-color: var(--green); }
.flash-error   { border-left-color: var(--red); }
.flash-warning { border-left-color: var(--amber); }
.flash-info    { border-left-color: var(--blue); }

/* ── Toasts ───────────────────────────────────────────────── */
#toast-root { position: fixed; bottom: 24px; right: 24px; display: flex; flex-direction: column; gap: 10px; z-index: 9999; pointer-events: none; }
.toast {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 12px 16px;
  min-width: 240px; max-width: 340px;
  box-shadow: 0 8px 32px rgba(0,0,0,.5);
  border-left: 3px solid var(--green);
  pointer-events: all;
  animation: slide-in .2s ease;
}
.toast.error  { border-left-color: var(--red); }
.toast.warn   { border-left-color: var(--amber); }
.toast-title  { font-weight: 600; font-size: 13.5px; margin-bottom: 2px; }
.toast-body   { font-size: 12.5px; color: var(--text-2); }
@keyframes slide-in { from { transform: translateX(20px); opacity: 0; } to { transform: none; opacity: 1; } }

/* ── Modals ───────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.65);
  backdrop-filter: blur(4px); z-index: 500;
  display: flex; align-items: center; justify-content: center; padding: 20px;
  animation: fade-in .15s ease;
}
.modal-overlay[hidden] { display: none; }
.modal-box {
  background: var(--bg-1); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px; width: 100%;
  max-width: 440px; position: relative;
  animation: pop-in .18s cubic-bezier(.34,1.56,.64,1);
}
.modal-close {
  position: absolute; top: 16px; right: 16px;
  color: var(--text-3); font-size: 22px; line-height: 1;
  background: none; border: none; cursor: pointer; padding: 2px 6px;
}
.modal-close:hover { color: var(--text); }
.modal-title { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.modal-sub   { font-size: 13px; color: var(--text-2); margin-bottom: 20px; }
.modal-foot  { display: flex; justify-content: flex-end; gap: 10px; margin-top: 22px; }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes pop-in  { from { transform: scale(.95); opacity: 0; } to { transform: none; opacity: 1; } }

/* ── Segment control ──────────────────────────────────────── */
.seg { display: flex; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 3px; gap: 3px; }
.seg-btn { flex: 1; background: none; border: none; color: var(--text-2); font: 500 13px var(--sans); padding: 7px; border-radius: var(--radius-xs); cursor: pointer; transition: .12s; }
.seg-btn.active { background: var(--bg-2); color: var(--text); }

/* ── QR display ───────────────────────────────────────────── */
.qr-frame { background: #fff; padding: 14px; border-radius: var(--radius); display: inline-block; }
.qr-frame img { width: 210px; height: 210px; display: block; image-rendering: pixelated; }
.pairing-code {
  font: 700 32px var(--mono); letter-spacing: .14em; color: var(--green);
  background: var(--bg); border: 1px solid var(--border);
  padding: 18px 28px; border-radius: var(--radius); text-align: center;
}

/* ── Session cards ────────────────────────────────────────── */
.session-card { display: flex; background: var(--bg-1); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: border-color .15s; }
.session-card:hover { border-color: var(--border); }
.session-rail { width: 4px; flex: none; background: var(--border); transition: background .3s, box-shadow .3s; }
.session-rail.connected   { background: var(--green); box-shadow: 0 0 14px var(--green-glow); }
.session-rail.connecting,
.session-rail.qr,
.session-rail.pairing     { background: var(--amber); }
.session-rail.disconnected{ background: var(--red); }
.session-body { padding: 16px 18px; flex: 1; min-width: 0; }

/* ── Plan cards ───────────────────────────────────────────── */
.plan-card {
  background: var(--bg-1); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px;
  display: flex; flex-direction: column; position: relative;
  transition: border-color .15s, box-shadow .15s;
}
.plan-card.current {
  border-color: var(--green);
  box-shadow: 0 0 0 1px var(--green), 0 0 32px var(--green-glow);
}
.plan-name  { font-size: 17px; font-weight: 700; margin-bottom: 4px; }
.plan-price { font: 700 32px var(--mono); letter-spacing: -.02em; margin: 10px 0; }
.plan-price span { font-size: 14px; color: var(--text-3); font-weight: 400; }
.plan-features { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.plan-feat { display: flex; gap: 8px; align-items: center; font-size: 13.5px; color: var(--text-2); }
.plan-feat::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--green); flex: none; }
.plan-badge { position: absolute; top: 14px; right: 14px; }

/* ── Key box ──────────────────────────────────────────────── */
.key-box {
  display: flex; align-items: center; gap: 10px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 11px 14px;
}
.key-box code { flex: 1; font: 500 13px var(--mono); color: var(--green); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── Code blocks ──────────────────────────────────────────── */
.code-block {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 16px;
  font: 400 12.5px var(--mono); color: var(--text-2);
  overflow-x: auto; white-space: pre; line-height: 1.65;
}
.code-block .kw  { color: var(--violet); }
.code-block .str { color: var(--green); }
.code-block .cmt { color: var(--text-3); }

/* ── Chart ────────────────────────────────────────────────── */
.chart-wrap { position: relative; }
.chart-wrap canvas { width: 100% !important; }

/* ── Empty states ─────────────────────────────────────────── */
.empty { text-align: center; padding: 56px 24px; }
.empty-icon { font-size: 36px; margin-bottom: 14px; opacity: .6; }
.empty-title { font-size: 16px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.empty-sub   { font-size: 13.5px; color: var(--text-2); margin-bottom: 20px; max-width: 36ch; margin-left: auto; margin-right: auto; }

/* ── Spinner ──────────────────────────────────────────────── */
.spinner { width: 28px; height: 28px; border: 3px solid var(--border); border-top-color: var(--green); border-radius: 50%; animation: spin 1s linear infinite; }
.spinner-sm { width: 18px; height: 18px; border-width: 2px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Live dot ─────────────────────────────────────────────── */
.live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); display: inline-block; box-shadow: 0 0 8px var(--green); animation: pulse-dot 1.8s ease-in-out infinite; }
@keyframes pulse-dot { 0%,100% { opacity:1; } 50% { opacity:.35; } }

/* ── Auth pages ───────────────────────────────────────────── */
.auth-shell { min-height: 100vh; display: grid; grid-template-columns: 1fr 1fr; }
.auth-panel {
  background: radial-gradient(900px 700px at 20% 40%, rgba(34,217,122,.12), transparent 65%), var(--bg-1);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; justify-content: center;
  padding: 60px 56px;
}
.auth-tagline { font-size: 36px; font-weight: 700; letter-spacing: -.03em; line-height: 1.2; margin-bottom: 18px; }
.auth-tagline span { color: var(--green); }
.auth-bullets { display: flex; flex-direction: column; gap: 12px; margin-top: 36px; }
.auth-bullet { display: flex; align-items: center; gap: 11px; font-size: 14px; color: var(--text-2); }
.auth-bullet .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); flex: none; }
.auth-form-wrap { display: flex; align-items: center; justify-content: center; padding: 40px; background: var(--bg); }
.auth-card { width: 100%; max-width: 400px; }
.auth-card h1 { font-size: 24px; font-weight: 700; letter-spacing: -.02em; margin-bottom: 4px; }
.auth-card p  { color: var(--text-2); margin-bottom: 28px; font-size: 14px; }
.auth-alt { margin-top: 20px; font-size: 13px; color: var(--text-2); text-align: center; }

/* ── Pager ────────────────────────────────────────────────── */
.pager { display: flex; justify-content: flex-end; gap: 8px; padding: 14px 18px; border-top: 1px solid var(--border-soft); }

/* ── Divider ──────────────────────────────────────────────── */
.divider { border: none; border-top: 1px solid var(--border-soft); margin: 20px 0; }

/* ── Utilities ────────────────────────────────────────────── */
.flex   { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2  { gap: 8px; }
.gap-3  { gap: 12px; }
.gap-4  { gap: 16px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.mt-1   { margin-top: 6px; }
.mt-2   { margin-top: 12px; }
.mt-3   { margin-top: 18px; }
.mt-4   { margin-top: 24px; }
.mb-2   { margin-bottom: 12px; }
.mb-3   { margin-bottom: 18px; }
.mb-4   { margin-bottom: 24px; }
.p-0    { padding: 0 !important; }
.hidden { display: none !important; }
.w-full { width: 100%; }
.text-right { text-align: right; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.nav-item.nav-signout,
.nav-item[href="/logout.php"] { color: var(--red) !important; }
.nav-item.nav-signout:hover,
.nav-item[href="/logout.php"]:hover { background: rgba(248,113,113,.08); color: var(--red) !important; text-decoration: none; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2,1fr); }
  .grid-3 { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; flex-direction: row; flex-wrap: wrap; }
  .sidebar-nav { flex-direction: row; flex-wrap: wrap; padding: 8px; }
  .sidebar-footer { display: none; }
  .auth-shell { grid-template-columns: 1fr; }
  .auth-panel { display: none; }
  .page { padding: 20px 18px 40px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .grid-4 { grid-template-columns: 1fr; }
  .form-row { flex-direction: column; gap: 0; }
  .page-header { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; } }