/* ClinCare design system — premium clinical UI (v3) */
:root {
  --bg: #eef1f8;
  --bg-alt: #ffffff;
  --surface: #ffffff;
  --surface-2: #f6f8fc;
  --border: #e5e9f2;
  --border-strong: #cfd6e4;
  --text: #0f172a;
  --text-muted: #64748b;
  --text-soft: #94a3b8;

  --brand: #6366f1;
  --brand-2: #8b5cf6;
  --brand-3: #06b6d4;

  --grad-hero: linear-gradient(135deg,#6366f1 0%,#8b5cf6 45%,#ec4899 100%);
  --grad-opd:  linear-gradient(135deg,#06b6d4 0%,#3b82f6 100%);
  --grad-book: linear-gradient(135deg,#0ea5e9 0%,#6366f1 100%);
  --grad-seen: linear-gradient(135deg,#10b981 0%,#059669 100%);
  --grad-miss: linear-gradient(135deg,#f97316 0%,#ef4444 100%);
  --grad-adm:  linear-gradient(135deg,#f59e0b 0%,#f97316 100%);
  --grad-sur:  linear-gradient(135deg,#ec4899 0%,#8b5cf6 100%);
  --grad-virtual: linear-gradient(135deg,#a855f7 0%,#6366f1 100%);
  --grad-emer: linear-gradient(135deg,#ef4444 0%,#dc2626 100%);
  --grad-elec: linear-gradient(135deg,#22c55e 0%,#16a34a 100%);
  --grad-mesh: radial-gradient(ellipse at 15% 10%, rgba(99,102,241,.16), transparent 50%),
               radial-gradient(ellipse at 85% 20%, rgba(236,72,153,.14), transparent 50%),
               radial-gradient(ellipse at 50% 100%, rgba(6,182,212,.14), transparent 55%);

  --ring: 0 0 0 3px rgba(99,102,241,.25);
  --shadow-sm: 0 1px 2px rgba(15,23,42,.06);
  --shadow-md: 0 12px 32px -16px rgba(15,23,42,.18);
  --shadow-lg: 0 24px 60px -24px rgba(15,23,42,.28);
  --shadow-glow: 0 20px 60px -20px rgba(99,102,241,.35);
  --radius: 18px;
  --radius-lg: 22px;
}
html.dark {
  --bg: #070b18;
  --bg-alt: #0f172a;
  --surface: rgba(20,28,48,.65);
  --surface-2: rgba(15,23,42,.6);
  --border: rgba(148,163,184,.14);
  --border-strong: rgba(148,163,184,.28);
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --text-soft: #64748b;
  --shadow-md: 0 12px 32px -16px rgba(0,0,0,.6);
  --shadow-lg: 0 24px 60px -24px rgba(0,0,0,.7);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  background-image: var(--grad-mesh);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: 'cv02','cv03','cv04','cv11';
}
html.dark body { background: #060914; background-image: var(--grad-mesh); }
a { color: inherit; text-decoration: none; }

/* Layout */
.app { display: flex; min-height: 100vh; }
.sidebar {
  width: 260px; flex: 0 0 260px;
  background: color-mix(in oklab, var(--surface) 88%, transparent);
  backdrop-filter: blur(18px) saturate(140%);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  position: sticky; top: 0; height: 100vh;
}
.sidebar-brand {
  display:flex; align-items:center; gap:12px;
  padding: 22px 24px 20px; border-bottom: 1px solid var(--border);
}
.sidebar-brand .logo {
  width: 42px; height: 42px; border-radius: 14px;
  background: var(--grad-hero);
  display:inline-flex; align-items:center; justify-content:center;
  color:#fff; font-weight:700; box-shadow: var(--shadow-glow);
  position: relative; overflow: hidden;
}
.sidebar-brand .logo::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.35),transparent 40%);}
.sidebar-brand .name { font-weight: 700; font-size: 1.05rem; letter-spacing: -.01em; }
.sidebar-brand .sub  { font-size: .7rem; color: var(--text-soft); text-transform: uppercase; letter-spacing: .14em; }
.nav { padding: 14px 12px; display: flex; flex-direction: column; gap: 2px; }
.nav-section { padding: 14px 14px 6px; font-size: .68rem; color: var(--text-soft); letter-spacing: .14em; text-transform: uppercase; }
.nav a {
  display:flex; align-items:center; gap:12px;
  padding: 10px 14px; border-radius: 12px;
  color: var(--text-muted); font-size: .92rem; font-weight: 500;
  transition: background .18s, color .18s, transform .1s;
}
.nav a:hover { background: var(--surface-2); color: var(--text); }
.nav a.active {
  background: linear-gradient(135deg, rgba(99,102,241,.18), rgba(139,92,246,.14));
  color: var(--brand); box-shadow: inset 0 0 0 1px rgba(99,102,241,.2);
}
.nav a .ico { width: 18px; height: 18px; opacity: .95; flex: 0 0 18px; }

.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  height: 68px; display:flex; align-items:center; justify-content:space-between;
  padding: 0 32px; border-bottom: 1px solid var(--border);
  background: color-mix(in oklab, var(--surface) 70%, transparent);
  backdrop-filter: blur(16px) saturate(140%);
  position: sticky; top: 0; z-index: 20;
}
.topbar .crumb { color: var(--text-soft); font-size: .74rem; letter-spacing: .16em; text-transform: uppercase; }
.topbar h1 { margin: 0; font-size: 1.15rem; font-weight: 600; letter-spacing: -.01em; }

.content { padding: 28px 32px 48px; max-width: 1400px; width: 100%; margin: 0 auto; }
.page-title { display:flex; align-items:center; justify-content:space-between; gap:16px; margin-bottom: 22px; }
.page-title h1 { margin: 0; font-size: 1.65rem; font-weight: 700; letter-spacing: -.025em; }
.page-title .sub { color: var(--text-muted); font-size: .92rem; margin-top: 4px; }

/* Hero panel on dashboard */
.hero-panel {
  position: relative; overflow: hidden;
  border-radius: var(--radius-lg);
  padding: 28px 30px;
  margin-bottom: 24px;
  background:
    linear-gradient(135deg, rgba(99,102,241,.10), rgba(236,72,153,.06) 60%, rgba(6,182,212,.10)),
    color-mix(in oklab, var(--surface) 82%, transparent);
  border: 1px solid var(--border);
  backdrop-filter: blur(20px) saturate(140%);
  box-shadow: var(--shadow-md);
}
.hero-panel::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 90% -20%, rgba(139,92,246,.35), transparent 40%);pointer-events:none;}
.hero-panel-inner { position: relative; display:flex; align-items:center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.hero-panel .crumb { color: var(--text-soft); font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; margin-bottom: 6px; }
.hero-panel h1 { margin: 0; font-size: 1.9rem; font-weight: 700; letter-spacing: -.028em; background: var(--grad-hero); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-panel .sub { color: var(--text-muted); margin-top: 6px; font-size: .95rem; }

/* Buttons */
.btn {
  display:inline-flex; align-items:center; gap:8px;
  padding: 10px 18px; border-radius: 12px; font-size: .88rem; font-weight: 600;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .12s, box-shadow .18s, background .18s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--grad-hero); color: #fff; box-shadow: var(--shadow-glow); position: relative; overflow: hidden; }
.btn-primary::before{content:'';position:absolute;inset:0;background:linear-gradient(120deg,transparent 30%,rgba(255,255,255,.28) 50%,transparent 70%);transform:translateX(-100%);transition:transform .8s;}
.btn-primary:hover::before{transform:translateX(100%);}
.btn-primary:hover { box-shadow: 0 24px 60px -20px rgba(139,92,246,.5); }
.btn-outline { background: var(--surface); border-color: var(--border-strong); color: var(--text); }
.btn-outline:hover { background: var(--surface-2); }
.btn-ghost { background: transparent; color: var(--text-muted); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); }
.btn-danger { background: #fee2e2; color: #b91c1c; }
.btn-danger:hover { background: #fecaca; }
html.dark .btn-danger { background: rgba(239,68,68,.15); color: #fca5a5; }
.btn-sm { padding: 6px 12px; font-size: .8rem; border-radius: 10px; }

.icon-btn {
  width: 40px; height: 40px; border-radius: 12px;
  display:inline-flex; align-items:center; justify-content:center;
  border: 1px solid var(--border); background: var(--surface);
  color: var(--text-muted); cursor: pointer; backdrop-filter: blur(10px);
}
.icon-btn:hover { color: var(--text); background: var(--surface-2); }

/* Cards */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow-sm);
}
.card-body { padding: 22px; }
.card-header {
  padding: 18px 22px; border-bottom: 1px solid var(--border);
  display:flex; align-items:center; justify-content:space-between; gap: 12px;
}
.card-title { font-size: 1rem; font-weight: 600; margin: 0; letter-spacing: -.01em; }
.card-sub { font-size: .8rem; color: var(--text-muted); margin-top: 2px; }

/* Glass-morphism variant */
.glass-card {
  background: color-mix(in oklab, var(--surface) 78%, transparent);
  backdrop-filter: blur(20px) saturate(140%);
  border: 1px solid color-mix(in oklab, var(--border-strong) 60%, transparent);
  box-shadow: var(--shadow-md);
  transition: transform .18s, box-shadow .18s;
}
.glass-card:hover { box-shadow: var(--shadow-lg); }
.glass { background: color-mix(in oklab, var(--surface) 65%, transparent); backdrop-filter: blur(16px) saturate(140%); border: 1px solid var(--border); }

/* KPI colorful cards */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(220px,1fr)); gap: 18px; }
.kpi-grid.premium { grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); }
.kpi {
  position: relative; overflow: hidden;
  border-radius: var(--radius); padding: 22px;
  color: #fff; box-shadow: var(--shadow-md);
  min-height: 170px; display:flex; flex-direction:column; gap: 12px;
}
.kpi::before {
  content:''; position:absolute; inset:0;
  background: radial-gradient(circle at 100% 0%, rgba(255,255,255,.28), transparent 55%);
  pointer-events: none;
}
.kpi::after {
  content:''; position:absolute; inset:-1px;
  border-radius: inherit;
  background: linear-gradient(120deg,transparent 30%,rgba(255,255,255,.14) 50%,transparent 70%);
  transform: translateX(-100%); transition: transform 1s;
  pointer-events: none;
}
.kpi:hover::after { transform: translateX(100%); }
.kpi-head { display:flex; align-items:flex-start; justify-content:space-between; gap:8px; }
.kpi .label { font-size: .74rem; text-transform: uppercase; letter-spacing: .14em; opacity: .95; font-weight: 700; }
.kpi .value { font-size: 2.4rem; font-weight: 700; line-height: 1; letter-spacing: -.03em; display:flex; align-items:baseline; gap:8px; }
.kpi .value-suffix { font-size: .85rem; font-weight: 500; opacity: .85; letter-spacing: 0; }
.kpi .foot  { font-size: .78rem; opacity: .92; display:flex; align-items:center; gap:6px; }
.kpi .icon  {
  width: 44px; height: 44px; border-radius: 14px;
  background: rgba(255,255,255,.22); display:inline-flex; align-items:center; justify-content:center;
  backdrop-filter: blur(8px); font-size: 1.15rem;
  border: 1px solid rgba(255,255,255,.2);
}
.kpi-split { display:flex; gap: 6px; margin-top:auto; border-top: 1px solid rgba(255,255,255,.2); padding-top: 12px; }
.kpi-split > div { flex:1; display:flex; flex-direction:column; gap:2px; }
.kpi .mini-label { font-size: .7rem; text-transform: uppercase; letter-spacing: .12em; opacity: .85; font-weight: 600; }
.kpi .mini-val { font-size: 1.15rem; font-weight: 700; line-height: 1; }
.kpi-dual { display:flex; align-items:center; gap: 12px; margin-top:auto; }
.kpi-dual > div:first-child, .kpi-dual > div:last-child { flex:1; }
.kpi .mini-big { font-size: 1.7rem; font-weight: 700; line-height: 1; letter-spacing: -.02em; margin-top: 4px; }
.split-divider { width:1px; height: 36px; background: rgba(255,255,255,.25); }
.kpi-progress { margin-top: 12px; display:flex; flex-direction:column; gap:6px; }
.progress.light { background: rgba(255,255,255,.2); border-color: rgba(255,255,255,.2); }
.progress.light > span { background: rgba(255,255,255,.9); }
.kpi.g-book   { background: var(--grad-book); }
.kpi.g-seen   { background: var(--grad-seen); }
.kpi.g-miss   { background: var(--grad-miss); }
.kpi.g-adm    { background: var(--grad-adm); }
.kpi.g-sur    { background: var(--grad-sur); }
.kpi.g-opd    { background: var(--grad-opd); }
.kpi.g-virt   { background: var(--grad-virtual); }
.kpi.g-elec   { background: var(--grad-elec); }
.kpi.g-emer   { background: var(--grad-emer); }

/* Small stat cards (detail views) */
.stat-card { padding: 20px; border-radius: var(--radius); color:#fff; position: relative; overflow: hidden; box-shadow: var(--shadow-md); }
.stat-card::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 100% 0%, rgba(255,255,255,.24), transparent 55%);pointer-events:none;}
.stat-card.g-adm{background:var(--grad-adm);} .stat-card.g-seen{background:var(--grad-seen);} .stat-card.g-virt{background:var(--grad-virtual);} .stat-card.g-book{background:var(--grad-book);}
.stat-label { font-size: .72rem; text-transform: uppercase; letter-spacing: .14em; opacity: .9; font-weight: 700; }
.stat-value { font-size: 1.9rem; font-weight: 700; margin-top: 8px; letter-spacing: -.02em; display:flex; align-items:baseline; gap:8px; }
.stat-value .value-suffix { font-size: .8rem; font-weight: 500; opacity: .85; }

/* Detail header */
.detail-header {
  display:flex; align-items:flex-start; justify-content:space-between; gap:16px; flex-wrap:wrap;
  padding: 24px 26px; border-radius: var(--radius-lg);
  background: color-mix(in oklab, var(--surface) 78%, transparent);
  backdrop-filter: blur(18px) saturate(140%);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  position: relative; overflow: hidden;
}
.detail-header::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 100% 0%, rgba(99,102,241,.16), transparent 45%);pointer-events:none;}
.detail-header .crumb { font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; color: var(--text-soft); }
.detail-header h1 { margin: 6px 0 10px; font-size: 1.7rem; font-weight: 700; letter-spacing: -.025em; }
.chip-row { display:flex; flex-wrap:wrap; gap:8px; align-items:center; }
.detail-grid { display:grid; grid-template-columns: repeat(auto-fit,minmax(220px,1fr)); gap: 18px; }
.detail-item { padding: 14px 16px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--border); }
.detail-lbl { font-size: .7rem; text-transform: uppercase; letter-spacing: .14em; color: var(--text-soft); font-weight: 700; margin-bottom: 6px; }
.detail-val { font-size: .95rem; color: var(--text); font-weight: 500; }

/* Flip cards */
.flip { perspective: 1200px; }
.flip-inner {
  position: relative; width: 100%; height: 100%;
  transition: transform .7s cubic-bezier(.4,.2,.2,1);
  transform-style: preserve-3d;
  min-height: 170px;
}
.flip:hover .flip-inner, .flip:focus-within .flip-inner { transform: rotateY(180deg); }
.flip-face {
  position: absolute; inset: 0;
  backface-visibility: hidden;
  border-radius: var(--radius);
  padding: 20px;
  display:flex; flex-direction:column; justify-content:space-between;
  color: #fff;
}
.flip-back {
  transform: rotateY(180deg);
  color: var(--text);
  padding: 20px;
}
.flip-back .lbl { color: var(--text-muted); font-size: .82rem; }
.flip-back .val { font-size: 1.15rem; font-weight: 600; }

/* Tables */
.table-wrap { overflow-x: auto; border-radius: inherit; }
table.data { width: 100%; border-collapse: separate; border-spacing: 0; font-size: .9rem; }
table.data thead th {
  text-align: left; padding: 13px 18px;
  color: var(--text-muted); font-size: .7rem; text-transform: uppercase; letter-spacing: .12em; font-weight: 700;
  background: color-mix(in oklab, var(--surface-2) 92%, transparent);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; backdrop-filter: blur(8px);
}
table.data tbody td { padding: 14px 18px; border-bottom: 1px solid var(--border); vertical-align: middle; }
table.data tbody tr:last-child td { border-bottom: none; }
table.data tbody tr.clickable { cursor: pointer; transition: background .12s; }
table.data tbody tr:hover td { background: color-mix(in oklab, var(--brand) 5%, transparent); }
table.data .num { text-align: right; font-variant-numeric: tabular-nums; }
table.data .actions { text-align: right; white-space: nowrap; }
.mono { font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .86rem; }

/* Badges & pills */
.pill { display:inline-flex; align-items:center; gap:6px; padding: 5px 11px; border-radius: 999px; font-size: .74rem; font-weight: 700; letter-spacing:.02em; }
.pill.opd  { background: rgba(6,182,212,.14); color:#0891b2; }
.pill.er   { background: rgba(239,68,68,.14); color:#dc2626; }
.pill.take { background: rgba(245,158,11,.16); color:#b45309; }
.pill.elec { background: rgba(34,197,94,.16); color:#15803d; }
.pill.emer { background: rgba(239,68,68,.16); color:#dc2626; }
.pill.virt { background: rgba(139,92,246,.16); color:#7c3aed; }
.pill.morn { background: rgba(251,191,36,.16); color:#b45309; }
.pill.even { background: rgba(99,102,241,.16); color:#4338ca; }
html.dark .pill.opd { color:#67e8f9; }
html.dark .pill.er, html.dark .pill.emer { color:#fca5a5; }
html.dark .pill.take, html.dark .pill.morn { color:#fcd34d; }
html.dark .pill.elec { color:#86efac; }
html.dark .pill.virt { color:#c4b5fd; }
html.dark .pill.even { color:#c7d2fe; }

/* Forms */
.form-grid { display:grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 18px; }
.form-grid .full { grid-column: 1/-1; }
.field label { display:block; font-size: .82rem; font-weight: 600; margin-bottom: 6px; color: var(--text); }
.field .hint { font-size: .74rem; color: var(--text-muted); margin-top: 4px; }
.field input[type=text], .field input[type=email], .field input[type=password],
.field input[type=number], .field input[type=date], .field select, .field textarea {
  width: 100%; padding: 11px 13px; border-radius: 12px;
  border: 1px solid var(--border-strong); background: var(--surface);
  color: var(--text); font-size: .92rem;
  transition: border-color .15s, box-shadow .15s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--brand); box-shadow: var(--ring);
}
.field textarea { min-height: 100px; resize: vertical; }
.checkbox { display:inline-flex; align-items:center; gap:10px; padding: 11px 14px; border: 1px dashed var(--border-strong); border-radius: 12px; cursor:pointer; font-size:.9rem; }
.checkbox input { accent-color: var(--brand); width: 16px; height: 16px; }

/* Flash */
.flash { padding: 12px 16px; border-radius: 14px; margin-bottom: 16px; font-size: .9rem; border: 1px solid transparent; display:flex; align-items:flex-start; gap:10px; backdrop-filter: blur(10px); }
.flash.success { background: rgba(16,185,129,.12); color: #047857; border-color: rgba(16,185,129,.3); }
.flash.error   { background: rgba(239,68,68,.12); color: #b91c1c; border-color: rgba(239,68,68,.3); }
.flash.info    { background: rgba(99,102,241,.12); color: #4338ca; border-color: rgba(99,102,241,.3); }
html.dark .flash.success { color: #6ee7b7; }
html.dark .flash.error   { color: #fca5a5; }
html.dark .flash.info    { color: #c7d2fe; }

/* Sample banner */
.sample-banner {
  border-radius: var(--radius);
  padding: 18px 22px;
  background: linear-gradient(135deg, rgba(99,102,241,.14), rgba(236,72,153,.10));
  border: 1px dashed rgba(99,102,241,.4);
  display:flex; align-items:center; justify-content:space-between; gap: 16px;
  margin-bottom: 22px;
}
.sample-banner .txt strong { display:block; margin-bottom: 2px; }
.sample-banner .txt .sub { font-size: .85rem; color: var(--text-muted); }

/* Empty state */
.empty { padding: 60px 20px; text-align:center; color: var(--text-muted); }
.empty .emoji { font-size: 2.6rem; margin-bottom: 8px; }

/* Auth */
.auth-wrap { min-height: 100vh; display: grid; grid-template-columns: 1fr; }
@media(min-width: 900px) { .auth-wrap { grid-template-columns: 1.05fr 1fr; } }
.auth-hero {
  display: none;
  background: var(--grad-hero); color:#fff;
  padding: 60px; position: relative; overflow: hidden;
}
@media(min-width: 900px) { .auth-hero { display: flex; flex-direction: column; justify-content: space-between; } }
.auth-hero::before {
  content:''; position:absolute; inset:0;
  background: radial-gradient(circle at 20% 30%, rgba(255,255,255,.2), transparent 40%), radial-gradient(circle at 80% 80%, rgba(255,255,255,.14), transparent 40%);
}
.auth-hero .content-box { position: relative; }
.auth-hero h1 { font-size: 2.4rem; font-weight: 700; letter-spacing: -.025em; line-height: 1.08; margin: 20px 0 12px; }
.auth-hero p { font-size: 1.02rem; opacity: .92; max-width: 380px; }
.auth-form { display:flex; align-items:center; justify-content:center; padding: 40px; background: var(--bg); }
.auth-form .box { width: 100%; max-width: 420px; }
.auth-form h2 { margin: 0 0 6px; font-size: 1.6rem; font-weight: 700; letter-spacing: -.02em; }
.auth-form .lead { color: var(--text-muted); margin-bottom: 24px; }

/* Charts */
.chart-wrap { position: relative; height: 260px; }
.chart-wrap.sm { height: 220px; }

/* Grids */
.grid-2 { display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 20px; }
.grid-3 { display:grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 20px; }
.grid-4 { display:grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 18px; }
@media(max-width: 900px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

/* Landing */
.landing { min-height: 100vh; color: var(--text); position: relative; overflow-x:hidden; }
.landing::before {
  content:''; position: fixed; inset:0; z-index:-1;
  background:
    radial-gradient(ellipse at 15% 5%, rgba(99,102,241,.28), transparent 55%),
    radial-gradient(ellipse at 85% 15%, rgba(236,72,153,.24), transparent 55%),
    radial-gradient(ellipse at 50% 90%, rgba(6,182,212,.22), transparent 55%),
    var(--bg);
}
.landing-nav { max-width:1200px; margin:0 auto; padding:22px 32px; display:flex; align-items:center; justify-content:space-between; }
.landing-brand { display:flex; align-items:center; gap:12px; font-weight:700; font-size:1.1rem; }
.landing-brand .logo { width:40px; height:40px; border-radius:14px; background:var(--grad-hero); display:inline-flex; align-items:center; justify-content:center; color:#fff; box-shadow:var(--shadow-glow); }
.landing-hero {
  position:relative; overflow:hidden;
  padding: 80px 32px 100px; text-align:center;
  max-width: 1200px; margin: 0 auto;
}
.landing-tag {
  display:inline-flex; align-items:center; gap:10px; padding: 7px 16px;
  border-radius: 999px; border: 1px solid var(--border-strong);
  background: color-mix(in oklab, var(--surface) 70%, transparent);
  backdrop-filter: blur(12px);
  font-size: .8rem; color: var(--text-muted); font-weight: 500;
}
.landing-tag .dot { width: 8px; height: 8px; border-radius: 999px; background: #10b981; box-shadow: 0 0 0 4px rgba(16,185,129,.2); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(16,185,129,.4); } 50% { box-shadow: 0 0 0 8px rgba(16,185,129,0); } }
.landing h1 {
  font-size: clamp(2.6rem, 6vw, 4.5rem);
  font-weight: 800; letter-spacing: -.035em; line-height: 1.02;
  margin: 24px auto 22px; max-width: 900px;
}
.landing h1 .grad {
  background: var(--grad-hero); -webkit-background-clip: text;
  background-clip: text; color: transparent;
}
.landing .lead { color: var(--text-muted); font-size: 1.15rem; max-width: 640px; margin: 0 auto 36px; line-height: 1.5; }

.landing-stats { max-width: 1100px; margin: -40px auto 60px; padding: 0 32px; display:grid; grid-template-columns: repeat(auto-fit, minmax(180px,1fr)); gap: 16px; }
.landing-stat { padding: 20px 22px; border-radius: var(--radius); background: color-mix(in oklab, var(--surface) 80%, transparent); backdrop-filter: blur(16px) saturate(140%); border: 1px solid var(--border); box-shadow: var(--shadow-md); }
.landing-stat .num { font-size: 1.9rem; font-weight: 800; letter-spacing: -.02em; background: var(--grad-hero); -webkit-background-clip: text; background-clip: text; color: transparent; }
.landing-stat .cap { font-size: .82rem; color: var(--text-muted); font-weight: 500; margin-top: 4px; }

.landing-features { max-width: 1200px; margin: 0 auto 100px; padding: 0 32px; }
.landing-features h2 { text-align:center; font-size: clamp(1.8rem, 3.5vw, 2.4rem); letter-spacing: -.025em; margin-bottom: 12px; }
.landing-features .lead2 { text-align:center; color: var(--text-muted); margin-bottom: 48px; }
.feature { padding: 26px; border-radius: var(--radius); background: color-mix(in oklab, var(--surface) 78%, transparent); backdrop-filter: blur(16px) saturate(140%); border: 1px solid var(--border); box-shadow: var(--shadow-md); position: relative; overflow: hidden; transition: transform .2s, box-shadow .2s; }
.feature:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.feature::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad-hero);opacity:.7;}
.feature .ico { width:48px; height:48px; border-radius: 14px; background: linear-gradient(135deg, rgba(99,102,241,.15), rgba(236,72,153,.12)); display:inline-flex; align-items:center; justify-content:center; font-size: 1.4rem; margin-bottom: 12px; border: 1px solid rgba(99,102,241,.2); }
.feature h3 { margin: 6px 0 8px; font-size: 1.1rem; letter-spacing: -.01em; }
.feature p  { margin: 0; color: var(--text-muted); font-size: .92rem; line-height: 1.55; }

.landing-cta { max-width: 900px; margin: 0 auto 80px; padding: 0 32px; }
.landing-cta-inner { padding: 44px 40px; border-radius: var(--radius-lg); text-align: center; background: linear-gradient(135deg, rgba(99,102,241,.16), rgba(236,72,153,.14)); border: 1px solid rgba(99,102,241,.3); backdrop-filter: blur(20px) saturate(140%); position: relative; overflow: hidden; }
.landing-cta-inner::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 50% 0%, rgba(139,92,246,.3), transparent 55%);pointer-events:none;}
.landing-cta h2 { margin: 0 0 10px; font-size: 1.9rem; letter-spacing: -.025em; position:relative; }
.landing-cta p { color: var(--text-muted); margin-bottom: 22px; position: relative; }
.landing-cta .btn { position: relative; padding: 14px 28px; font-size: .95rem; }

/* Chips */
.chip {
  display:inline-flex; align-items:center; gap:6px;
  padding: 5px 11px; border-radius: 999px; font-size: .78rem;
  background: var(--surface-2); border:1px solid var(--border); color: var(--text-muted);
}
.tabs { display:flex; gap:6px; padding: 5px; border-radius: 14px; border: 1px solid var(--border); }
.tabs a { padding: 8px 16px; border-radius: 10px; font-size: .84rem; color: var(--text-muted); font-weight: 600; transition: all .18s; }
.tabs a:hover { color: var(--text); }
.tabs a.active { background: var(--grad-hero); color: #fff; box-shadow: var(--shadow-md); }

/* Progress bar */
.progress { height: 9px; background: var(--surface-2); border-radius: 999px; overflow: hidden; border: 1px solid var(--border); position:relative; }
.progress > span { display:block; height: 100%; background: var(--grad-seen); border-radius: 999px; transition: width .5s cubic-bezier(.4,.2,.2,1); position:relative; overflow:hidden; }
.progress > span::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);animation:shimmer 2.4s infinite;}
@keyframes shimmer { 0%{transform:translateX(-100%);} 100%{transform:translateX(100%);} }

/* Sidebar toggle for mobile */
@media(max-width: 900px) {
  .sidebar { position: fixed; left: -280px; top: 0; z-index: 40; transition: left .25s; }
  .sidebar.open { left: 0; box-shadow: var(--shadow-lg); }
  .content { padding: 20px; }
  .topbar { padding: 0 18px; }
}
.menu-btn { display:none; }
@media(max-width: 900px) { .menu-btn { display:inline-flex; } }

/* Utility */
.row { display:flex; align-items:center; gap:12px; }
.spacer { flex: 1; }
.text-muted { color: var(--text-muted); }
.mt-2 { margin-top: 8px; } .mt-3 { margin-top: 12px; } .mt-4 { margin-top: 16px; } .mt-6 { margin-top: 24px; }
.mb-4 { margin-bottom: 16px; } .mb-6 { margin-bottom: 24px; }
.flex { display:flex; } .items-center { align-items:center; } .gap-2 { gap: 8px; } .gap-3 { gap: 12px; } .justify-between { justify-content: space-between; }

/* === v4 additions: sidebar collapse, landing polish, colour tuning === */

/* Refined brand tokens */
:root {
  --brand-ink: #4f46e5;
  --grad-hero: linear-gradient(135deg,#4f46e5 0%,#7c3aed 45%,#db2777 100%);
}
html.dark {
  --brand-ink: #a5b4fc;
}

/* Sidebar collapse (desktop) */
.sidebar { transition: width .22s ease, flex-basis .22s ease; }
.sidebar-brand { position: relative; }
.sidebar-collapse-btn {
  position:absolute; right:12px; top:50%; transform: translateY(-50%);
  width:26px; height:26px; border-radius:8px;
  background: var(--surface-2); border:1px solid var(--border);
  color: var(--text-muted); display:inline-flex; align-items:center; justify-content:center;
  cursor:pointer; font-size:.95rem; line-height:1;
  transition: background .18s, color .18s, transform .2s;
}
.sidebar-collapse-btn:hover { background: var(--surface); color: var(--text); }
.sidebar-collapse-btn .chev { display:inline-block; transition: transform .25s; }
html.sidebar-collapsed .sidebar-collapse-btn .chev { transform: rotate(180deg); }

@media(min-width: 901px) {
  html.sidebar-collapsed .sidebar { width: 76px; flex-basis: 76px; }
  html.sidebar-collapsed .sidebar .brand-text,
  html.sidebar-collapsed .sidebar .nav-section,
  html.sidebar-collapsed .sidebar .nav a .lbl { display: none; }
  html.sidebar-collapsed .sidebar-brand { padding: 20px 14px; justify-content:center; }
  html.sidebar-collapsed .sidebar-collapse-btn { position: static; transform:none; }
  html.sidebar-collapsed .sidebar .nav { padding: 12px 8px; align-items:center; }
  html.sidebar-collapsed .sidebar .nav a { justify-content:center; padding: 12px; width: 48px; }
}

/* Desktop-only collapse button in topbar */
.collapse-btn { display:none; }
@media(min-width: 901px) { .collapse-btn { display:inline-flex; } }
@media(max-width: 900px) { .collapse-btn { display:none !important; } }

/* Landing polish */
.landing-nav { position: sticky; top:0; z-index:30; backdrop-filter: blur(16px) saturate(140%); background: color-mix(in oklab, var(--background) 72%, transparent); border-bottom: 1px solid transparent; }
.landing-links { display:flex; gap:26px; }
.landing-links a { font-size: .9rem; font-weight:500; color: var(--text-muted); transition: color .15s; }
.landing-links a:hover { color: var(--text); }
@media(max-width:820px){ .landing-links{ display:none; } }

.landing-hero { max-width: 1100px; margin: 0 auto; padding: 70px 32px 60px; text-align:center; }
.landing h1 { font-size: clamp(2.4rem, 5.5vw, 4rem); font-weight: 800; letter-spacing: -.035em; line-height: 1.05; margin: 0 0 20px; }
.landing h1 .grad { background: var(--grad-hero); -webkit-background-clip: text; background-clip:text; color:transparent; }

.section-eyebrow { text-transform: uppercase; letter-spacing: .18em; font-size: .72rem; font-weight: 700; color: var(--brand-ink); margin-bottom: 10px; text-align:center; }

/* Preview mock */
.landing-preview { max-width: 960px; margin: 56px auto 0; perspective: 1400px; }
.preview-window { border-radius: 18px; overflow:hidden; background: var(--surface); border:1px solid var(--border); box-shadow: 0 40px 80px -30px rgba(79,70,229,.35), 0 20px 40px -20px rgba(0,0,0,.15); transform: rotateX(6deg); transform-origin: 50% 100%; }
.preview-chrome { display:flex; align-items:center; gap:8px; padding: 12px 16px; background: var(--surface-2); border-bottom:1px solid var(--border); }
.preview-chrome span { width:11px; height:11px; border-radius:50%; background:#e4e6ea; }
.preview-chrome span:nth-child(1){background:#ff5f57;} .preview-chrome span:nth-child(2){background:#febc2e;} .preview-chrome span:nth-child(3){background:#28c840;}
.preview-url { margin-left: 14px; font-size:.75rem; color: var(--text-muted); background: var(--surface); border:1px solid var(--border); padding: 4px 12px; border-radius:999px; }
.preview-body { padding: 22px; display:flex; flex-direction:column; gap:20px; }
.preview-kpis { display:grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.preview-kpi { padding: 14px 16px; border-radius: 14px; color:#fff; text-align:left; }
.preview-kpi .cap { font-size:.72rem; opacity:.85; text-transform:uppercase; letter-spacing:.12em; font-weight:600; }
.preview-kpi .num { font-size: 1.5rem; font-weight: 800; margin-top:4px; letter-spacing:-.02em; }
.preview-kpi.g-book { background: var(--grad-book); }
.preview-kpi.g-seen { background: var(--grad-seen); }
.preview-kpi.g-adm { background: var(--grad-adm); }
.preview-kpi.g-sur { background: var(--grad-sur); }
.preview-bars { display:flex; align-items:flex-end; gap:10px; height: 140px; padding: 12px; border-radius:14px; background: var(--surface-2); border:1px solid var(--border); }
.preview-bars span { flex:1; background: var(--grad-hero); border-radius: 6px 6px 2px 2px; opacity:.9; }
@media(max-width:640px){ .preview-kpis { grid-template-columns: repeat(2,1fr); } }

/* Features grid */
.grid-3 { display:grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 20px; }
@media(max-width:900px){ .grid-3 { grid-template-columns: 1fr; } }
.feature { padding: 26px; border-radius: 18px; background: color-mix(in oklab, var(--surface) 82%, transparent); backdrop-filter: blur(14px) saturate(140%); border: 1px solid var(--border); box-shadow: var(--shadow-md); transition: transform .2s, box-shadow .2s, border-color .2s; }
.feature:hover { transform: translateY(-3px); border-color: color-mix(in oklab, var(--brand-ink) 35%, var(--border)); box-shadow: 0 20px 40px -20px rgba(79,70,229,.28); }
.feature .ico { width:46px; height:46px; border-radius:14px; background: var(--grad-hero); color:#fff; display:inline-flex; align-items:center; justify-content:center; font-size:1.35rem; box-shadow: var(--shadow-glow); margin-bottom: 14px; }
.feature h3 { margin:0 0 6px; font-size: 1.05rem; letter-spacing:-.01em; font-weight:700; }
.feature p { margin:0; color: var(--text-muted); font-size:.92rem; line-height:1.55; }

/* Workflow */
.landing-workflow { max-width: 1200px; margin: 0 auto 100px; padding: 0 32px; }
.landing-workflow h2 { text-align:center; font-size: clamp(1.8rem, 3.5vw, 2.4rem); letter-spacing:-.025em; margin: 0 0 40px; }
.workflow-grid { display:grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media(max-width:900px){ .workflow-grid { grid-template-columns: repeat(2, 1fr); } }
@media(max-width:520px){ .workflow-grid { grid-template-columns: 1fr; } }
.workflow-step { padding: 22px; border-radius: 16px; background: color-mix(in oklab, var(--surface) 78%, transparent); border:1px solid var(--border); position:relative; }
.wf-num { font-family: 'JetBrains Mono', monospace; font-size:.78rem; font-weight:700; color: var(--brand-ink); letter-spacing:.1em; margin-bottom:10px; }
.workflow-step h3 { margin:0 0 6px; font-size:1rem; font-weight:700; letter-spacing:-.01em; }
.workflow-step p { margin:0; color: var(--text-muted); font-size:.88rem; line-height:1.55; }

/* CTA */
.landing-cta-inner { color:#fff; background: var(--grad-hero); border-color: transparent; }
.landing-cta-inner .section-eyebrow { color: rgba(255,255,255,.9); }
.landing-cta-inner h2 { color:#fff; }
.landing-cta-inner p { color: rgba(255,255,255,.9); }
.landing-cta-inner .btn-primary { background: #fff; color: var(--brand-ink); box-shadow: 0 10px 30px -10px rgba(0,0,0,.35); }
.landing-cta-inner .btn-primary:hover { transform: translateY(-1px); }

/* Footer */
.landing-footer { max-width:1200px; margin:0 auto; padding: 30px 32px 40px; display:flex; align-items:center; justify-content:space-between; color: var(--text-muted); font-size:.85rem; border-top:1px solid var(--border); gap:16px; flex-wrap:wrap; }
.landing-footer .landing-brand { font-size:.95rem; }
.landing-footer .logo { width:32px; height:32px; font-size:.9rem; border-radius:10px; }