/* ============================================================
   Navolga — Design System  (original Navolga palette)
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  --ink:      #0c1117;
  --ink-2:    #1e2530;
  --muted:    #6b7280;
  --sub:      #9ca3af;
  --line:     rgba(0,0,0,0.08);
  --line-md:  rgba(0,0,0,0.13);
  --paper:    #f5f6f8;
  --card:     #ffffff;

  /* Brand colours — original Navolga */
  --lime:     #c8f135;
  --lime-dk:  #9ab82a;
  --teal:     #0fcfb0;
  --blue:     #3b6ef8;
  --amber:    #f5a623;
  --purple:   #8b5cf6;
  --red:      #ef4444;
  --green:    #22c55e;

  /* Primary accent = blue */
  --primary:  #3b6ef8;
  --primary-soft: rgba(59,110,248,.1);

  /* Gradient — teal to blue (Navolga identity) */
  --grad:     linear-gradient(120deg, #0fcfb0 0%, #3b6ef8 100%);
  --grad-soft: linear-gradient(135deg, rgba(15,207,176,.07), rgba(59,110,248,.07));

  --radius:    18px;
  --radius-sm: 12px;

  --shadow:    0 2px 8px rgba(12,17,23,.06), 0 1px 2px rgba(12,17,23,.04);
  --shadow-lg: 0 8px 32px rgba(12,17,23,.12), 0 2px 8px rgba(12,17,23,.06);

  --font-display: "Unbounded", system-ui, sans-serif;
  --font-body:    "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;

  --nav-h: 64px;
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }
body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  margin: 0;
  padding-top: var(--nav-h);
  -webkit-font-smoothing: antialiased;
  padding-bottom: 72px; /* mobile tab bar clearance */
}
a { text-decoration: none; color: inherit; }
img, video { max-width: 100%; display: block; }
h1, h2, h3, h4 { margin: 0 0 .5em; line-height: 1.2; }
p { margin: 0 0 1em; }
button { font-family: var(--font-body); }

/* ---------- Container ---------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
.row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.row.spread { justify-content: space-between; }
.display { font-family: var(--font-display); }
.muted { color: var(--muted); }
.pt { padding-top: 28px; }
.mt { margin-top: 28px; }
.mb { margin-bottom: 28px; }

/* ---------- Topbar ---------- */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  height: var(--nav-h);
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.topbar .container {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -.01em;
}
.brand img { width: 34px; height: 34px; border-radius: 9px; }
.brand-accent { color: var(--blue); }
.nav-links {
  display: flex;
  gap: 4px;
  margin-left: 12px;
}
.nav-links a {
  padding: 8px 12px;
  border-radius: 999px;
  font-weight: 700;
  font-size: .9rem;
  color: var(--muted);
  transition: color .15s, background .15s;
}
.nav-links a:hover, .nav-links a.on {
  color: var(--ink);
  background: var(--primary-soft);
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}
.icon-btn {
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #fff;
  border: 1px solid var(--line-md);
  font-size: 1.05rem;
  cursor: pointer;
  color: inherit;
  text-decoration: none;
}
.icon-btn:hover { border-color: var(--blue); color: var(--ink); }
.dot-count {
  position: absolute;
  top: -3px; right: -3px;
  min-width: 18px; height: 18px;
  padding: 0 5px;
  border-radius: 999px;
  background: var(--red);
  color: #fff;
  font-size: .7rem;
  font-weight: 800;
  display: grid;
  place-items: center;
  border: 2px solid #fff;
}

/* ---------- Mobile tab bar ---------- */
.tabbar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 60;
  display: none;
  justify-content: space-around;
  align-items: center;
  height: 64px;
  background: #fff;
  border-top: 1px solid var(--line-md);
  padding-bottom: env(safe-area-inset-bottom);
}
.tabbar a {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: .68rem;
  font-weight: 700;
  color: var(--sub);
  gap: 2px;
  position: relative;
}
.tabbar a span.ic { font-size: 1.3rem; line-height: 1; }
.tabbar a.on { color: var(--blue); }
.tabbar .tab-exchange span.ic {
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--grad);
  color: #fff;
  display: grid;
  place-items: center;
  margin-top: -22px;
  box-shadow: 0 8px 20px rgba(59,110,248,.35);
  font-size: 1.3rem;
}
.tabbar .dot-count { top: -4px; right: 6px; }

@media (max-width: 860px) {
  .nav-links, .nav-hide-sm { display: none !important; }
  .tabbar { display: flex; }
}
@media (min-width: 861px) {
  body { padding-bottom: 0; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 999px;
  border: 1px solid var(--line-md);
  background: #fff;
  font: 700 .95rem var(--font-body);
  color: var(--ink);
  cursor: pointer;
  transition: transform .12s, box-shadow .12s;
  white-space: nowrap;
}
.btn:hover { color: var(--ink); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-primary { background: var(--grad); border: 0; color: #fff; }
.btn-primary:hover { color: #fff; box-shadow: 0 10px 24px rgba(59,110,248,.3); }
.btn-dark { background: var(--ink); color: #fff; border-color: var(--ink); }
.btn-dark:hover { color: #fff; }
.btn-ghost { background: transparent; }
.btn-danger { color: var(--red); border-color: rgba(239,68,68,.3); }
.btn-sm { padding: 7px 14px; font-size: .85rem; }
.btn-block { width: 100%; }

/* ---------- Forms ---------- */
.form-card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px; }
.field { margin-bottom: 18px; }
.field > label, .label { display: block; font-weight: 700; font-size: .9rem; margin-bottom: 6px; }
.input, select.input, textarea.input {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--line-md);
  border-radius: var(--radius-sm);
  font: 500 1rem var(--font-body);
  background: #fff;
  color: var(--ink);
  transition: border-color .15s, box-shadow .15s;
  appearance: none;
}
.input:focus, select.input:focus, textarea.input:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(59,110,248,.12);
}
textarea.input { resize: vertical; }
.helptext, .field .help { display: block; font-size: .8rem; color: var(--muted); margin-top: 4px; }
.errorlist { list-style: none; padding: 0; margin: 6px 0 0; color: var(--red); font-size: .85rem; font-weight: 600; }
.form-errors { background: #fff0f0; color: var(--red); padding: 12px 14px; border-radius: var(--radius-sm); margin-bottom: 18px; font-weight: 600; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
@media (max-width: 600px) { .grid-2 { grid-template-columns: 1fr; } }
.pills { display: flex; gap: 10px; flex-wrap: wrap; }
.pills label { cursor: pointer; }
.pills input { position: absolute; opacity: 0; pointer-events: none; }
.pills span { display: inline-block; padding: 10px 18px; border-radius: 999px; border: 1.5px solid var(--line-md); font-weight: 700; background: #fff; }
.pills input:checked + span { border-color: transparent; background: var(--ink); color: #fff; }

/* ---------- Flash messages ---------- */
.flashes {
  position: fixed;
  top: calc(var(--nav-h) + 10px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 80;
  width: min(560px, calc(100% - 32px));
}
.flash {
  background: var(--ink);
  color: #fff;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  box-shadow: var(--shadow-lg);
  font-weight: 600;
  display: flex;
  gap: 10px;
  justify-content: space-between;
  align-items: center;
  animation: slideIn .25s ease-out;
}
.flash.error { background: var(--red); }
.flash.success { background: var(--green); }
.flash button { background: none; border: 0; color: inherit; font-size: 1.1rem; cursor: pointer; opacity: .8; }
@keyframes slideIn { from { opacity: 0; transform: translateY(-8px); } }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  border-radius: 28px;
  padding: 44px 36px;
  margin-bottom: 28px;
  background: var(--ink);
  color: #fff;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -40% -10% auto auto;
  width: 70%; height: 180%;
  background: radial-gradient(closest-side, rgba(15,207,176,.4), transparent 70%);
}
.hero::after {
  content: "";
  position: absolute;
  inset: auto auto -60% -10%;
  width: 60%; height: 160%;
  background: radial-gradient(closest-side, rgba(59,110,248,.45), transparent 70%);
}
.hero > * { position: relative; z-index: 1; }
.hero h1 { font-size: clamp(1.9rem, 5vw, 3.2rem); max-width: 14ch; }
.hero p { color: #9ca3af; max-width: 46ch; font-size: 1.05rem; }
.hero .row { margin-top: 20px; }
.hero .btn:not(.btn-primary) { background: rgba(255,255,255,.1); color: #fff; border-color: rgba(255,255,255,.2); }
.hero-stats { display: flex; gap: 28px; flex-wrap: wrap; margin-top: 28px; }
.hero-stats div { font-size: .8rem; color: var(--sub); text-transform: uppercase; letter-spacing: .06em; font-weight: 700; }
.hero-stats b { display: block; font-family: var(--font-display); font-size: 1.6rem; color: #fff; letter-spacing: 0; }
.hello { font-family: var(--font-display); font-size: .85rem; color: var(--teal); letter-spacing: .02em; margin-bottom: 10px; }

/* ---------- Filter chips ---------- */
.chips { display: flex; gap: 8px; overflow-x: auto; padding: 2px 2px 8px; scrollbar-width: none; }
.chips::-webkit-scrollbar { display: none; }
.chip {
  flex: none;
  padding: 9px 16px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line-md);
  font-weight: 700;
  font-size: .9rem;
  color: var(--ink);
}
.chip.on { background: var(--ink); color: #fff; border-color: var(--ink); }
.chip:hover { border-color: var(--blue); }

/* ---------- Layout with sidebar ---------- */
.with-side { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 28px; align-items: start; }
.side { position: sticky; top: calc(var(--nav-h) + 16px); }
@media (max-width: 1024px) { .with-side { grid-template-columns: 1fr; } .side { position: static; } }
.panel { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; margin-bottom: 18px; }
.panel h3 { margin-bottom: 12px; }

/* ---------- Cards ---------- */
.card {
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .18s, box-shadow .18s;
  display: block;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.card-body { padding: 14px 16px 12px; }
.card-caption { font-size: .93rem; color: var(--ink-2); margin-bottom: 10px; word-wrap: break-word; }
.byline { display: flex; align-items: center; gap: 10px; font-size: .85rem; }
.byline .name { font-weight: 800; color: var(--ink); }
.byline .meta { color: var(--muted); font-size: .78rem; }
.actions { display: flex; align-items: center; gap: 4px; margin-top: 10px; border-top: 1px solid var(--line); padding-top: 8px; }
.act {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 0;
  background: none;
  font: 700 .85rem var(--font-body);
  color: var(--muted);
  cursor: pointer;
}
.act:hover { background: var(--primary-soft); color: var(--ink); }

/* ---------- Avatars ---------- */
.avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  object-fit: cover;
  flex: none;
  background: var(--grad);
  color: #fff;
  display: inline-grid;
  place-items: center;
  font-weight: 800;
  font-size: .78rem;
}
.avatar.lg { width: 96px; height: 96px; font-size: 1.8rem; border: 4px solid #fff; box-shadow: var(--shadow); }
.avatar.md { width: 48px; height: 48px; font-size: 1rem; }

/* ---------- People grid ---------- */
.people-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.person-card { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; text-align: center; }

/* ---------- P2P Exchange Offer cards ---------- */
.offer-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.offer-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  border-left: 4px solid var(--blue);
  transition: transform .18s, box-shadow .18s;
  display: block;
  color: var(--ink);
}
.offer-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.offer-card.buy { border-left-color: var(--teal); }
.offer-card.sell { border-left-color: var(--amber); }

/* offer type badge */
.offer-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 800;
  margin-bottom: 10px;
}
.offer-badge-ugx { background: rgba(15,207,176,.12); color: #0a8f7c; }
.offer-badge-rub { background: rgba(59,110,248,.12); color: var(--blue); }
.offer-badge.buy { background: rgba(15,207,176,.12); color: #0a8f7c; }
.offer-badge.sell { background: rgba(245,166,35,.15); color: #8a5700; }

.offer-rate { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; margin: 8px 0; color: var(--ink); }
.offer-meta { font-size: .85rem; color: var(--muted); display: flex; gap: 12px; flex-wrap: wrap; margin-top: 8px; }
.offer-methods { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 10px; }
.method-tag {
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--paper);
  border: 1px solid var(--line-md);
  font-size: .78rem;
  font-weight: 700;
  color: var(--muted);
}
.rate-highlight { color: var(--blue); font-weight: 800; }

/* ---------- Order status ---------- */
.status-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 800;
}
.status-badge.open { background: rgba(59,110,248,.1); color: var(--blue); }
.status-badge.taken { background: rgba(245,166,35,.15); color: #7a5000; }
.status-badge.done { background: rgba(15,207,176,.12); color: #0a8f7c; }
.status-badge.cancelled { background: var(--paper); color: var(--muted); }
.status-badge.pending { background: rgba(139,92,246,.1); color: var(--purple); }
.status-badge.confirmed { background: rgba(34,197,94,.12); color: #15803d; }
.status-badge.disputed { background: rgba(239,68,68,.1); color: var(--red); }

/* ---------- Misc ---------- */
.empty { text-align: center; padding: 56px 20px; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); }
.empty .big { font-size: 2.6rem; }
.pager { display: flex; justify-content: center; gap: 8px; margin: 28px 0; }
.notice { padding: 12px 16px; border-radius: var(--radius-sm); background: #fffbe6; color: #7a5600; font-weight: 600; margin-bottom: 18px; }
.tabs { display: flex; gap: 6px; margin-bottom: 18px; }
.tags { display: flex; gap: 6px; flex-wrap: wrap; }
.tag { padding: 4px 10px; border-radius: 999px; background: var(--paper); font-size: .8rem; font-weight: 700; color: var(--muted); border: 1px solid var(--line-md); }

footer.site { border-top: 1px solid var(--line-md); padding: 28px 0 36px; color: var(--muted); font-size: .88rem; }
footer.site .row { gap: 18px; }
.auth-wrap { min-height: calc(100vh - var(--nav-h) - 120px); display: grid; place-items: center; }
.auth-card { width: min(480px, 100%); }

/* ---------- Install / PWA ---------- */
.install-banner {
  position: fixed; z-index: 85;
  left: 50%; bottom: 16px;
  transform: translate(-50%, 24px);
  opacity: 0;
  width: min(520px, calc(100% - 32px));
  display: flex; gap: 14px; align-items: flex-start;
  background: #fff; border-radius: 20px;
  padding: 14px 14px 14px 16px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--line-md);
  transition: transform .25s ease, opacity .25s ease;
}
.install-banner.open { transform: translate(-50%, 0); opacity: 1; }
@media (max-width: 860px) { .install-banner { bottom: calc(76px + env(safe-area-inset-bottom)); } }
.install-banner[hidden] { display: none; }

/* ---------- Dark mode ---------- */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0c1117;
    --card:  #161d26;
    --line:  rgba(255,255,255,.07);
    --line-md: rgba(255,255,255,.12);
    --ink:   #f0f4fa;
    --ink-2: #b4bece;
    --muted: #6b7a8d;
    --sub:   #4a5568;
    --primary-soft: rgba(59,110,248,.15);
  }
  .topbar { background: rgba(12,17,23,.92); }
  .tabbar { background: #161d26; }
  .offer-card, .form-card, .panel, .card, .empty { background: #161d26; }
  .input, select.input, textarea.input { background: #1e2a38; }
  .pills span { background: #1e2a38; }
}
:root[data-theme="dark"] {
  --paper: #0c1117;
  --card:  #161d26;
  --line:  rgba(255,255,255,.07);
  --line-md: rgba(255,255,255,.12);
  --ink:   #f0f4fa;
  --ink-2: #b4bece;
  --muted: #6b7a8d;
  --sub:   #4a5568;
  --primary-soft: rgba(59,110,248,.15);
}