/* Shared nav shell styling — included on every authenticated page via _nav.html.
   Bumping the ?v= query in _nav.html invalidates the browser cache. */

/* ── Base Theme Tokens (self-sufficient for pages that only load aim-nav.css) ── */
:root {
  --bg:        #000000;
  --surface:   #0a0a14;
  --surface-2: #16161f;
  --border:    rgba(255,255,255,0.12);
  --border-2:  rgba(255,255,255,0.09);
  --text:      #f0f0f8;
  --text-2:    rgba(210,210,230,0.88);
  --text-3:    rgba(210,210,230,0.75);
  --red:       #f84960;
  --amber:     #f7a600;
  --green:     #02c076;
  --blue:      #2e86de;
  --r4: 4px; --r8: 8px; --r12: 12px;
}

/* ── Base Body ── */
*, *::before, *::after { box-sizing: border-box; }
body {
  font-family: "DM Sans", -apple-system, "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  margin: 0;
}

/* ── Nav Tokens (augments page tokens) ── */
:root {
  --topnav-h: 60px;
  --bottom-nav-h: 60px;
  --amber-dim: rgba(255,179,64,0.12);
}

/* ── APP SHELL ── */
.app-shell { display: flex; min-height: 100vh; flex-direction: column; }

/* ── TOP NAV (desktop and shared base) ── */
.topnav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  height: var(--topnav-h);
  display: flex;
  align-items: stretch;
  position: sticky;
  top: 0;
  z-index: 100;
}
.topnav .nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 22px;
  border-right: none;
  font-weight: 700;
  letter-spacing: -0.01em;
  font-size: 17px;
  color: var(--text);
  text-decoration: none;
  flex-shrink: 0;
}
.topnav .nav-brand .brand-icon {
  flex-shrink: 0;
}
.topnav .nav-brand .accent { color: var(--amber); }

.topnav .nav-items {
  display: flex;
  flex: 1;
  padding: 0 8px;
  justify-content: center;  /* center the 4 nav items in the available space */
  /* overflow visible so the Alert dropdown menu (position:absolute,
     top:100%) isn't clipped. We have only 4 items so no horizontal
     scroll needed; mobile hides .nav-items entirely. */
  overflow: visible;
}
.topnav .nav-item {
  display: flex;
  align-items: center;
  padding: 0 18px;
  color: var(--text-2);
  font-size: 15px;
  border-bottom: 2px solid transparent;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.15s, border-color 0.15s;
}
.topnav .nav-item:hover { color: var(--text); }
.topnav .nav-item.active { color: var(--text); border-bottom-color: var(--amber); }
.topnav .nav-item .nav-badge {
  margin-left: 6px;
  font-family: 'DM Mono', monospace;
  font-size: 9.5px;
  background: rgba(247,166,0,0.15);
  color: var(--amber);
  padding: 1px 6px;
  border-radius: 4px;
}

/* Nav item with dropdown (Alert) */
.topnav .nav-item-dropdown {
  position: relative;
  display: flex;
  align-items: stretch;
}
.topnav .nav-item-trigger {
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 15px;
  color: var(--text-2);
  padding: 0 18px;
  display: flex;
  align-items: center;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: color 0.15s, border-color 0.15s;
}
.topnav .nav-item-trigger:hover { color: var(--text); }
.topnav .nav-item-trigger.active { color: var(--text); border-bottom-color: var(--amber); }
.topnav .nav-item-trigger .nav-caret {
  margin-left: 6px;
  font-size: 9px;
  opacity: 0.6;
}
.topnav .nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  min-width: 160px;
  padding: 4px 0;
  z-index: 50;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 0.15s, visibility 0.15s, transform 0.15s;
}
.topnav .nav-item-dropdown:hover .nav-dropdown-menu,
.topnav .nav-item-dropdown.open .nav-dropdown-menu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.topnav .nav-dropdown-item {
  display: block;
  padding: 8px 16px;
  color: var(--text-2);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
}
.topnav .nav-dropdown-item:hover { background: var(--surface-2); color: var(--text); }

.topnav .nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  border-left: none;
  flex-shrink: 0;
}

/* ── Lang switcher in top nav ── */
.topnav .lang-switcher { position: relative; }
.topnav .lang-btn {
  background: transparent;
  border: none;
  color: var(--text-3);
  font-size: 12px;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  gap: 4px;
}
.topnav .lang-btn:hover { background: var(--surface-2); color: var(--text); }
.topnav .lang-dropdown {
  position: absolute; top: 100%; right: 0; margin-top: 4px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 8px; box-shadow: 0 4px 16px rgba(0,0,0,0.3);
  min-width: 120px; padding: 4px 0; z-index: 50;
  opacity: 0; visibility: hidden; transition: opacity 0.15s, visibility 0.15s;
}
.topnav .lang-dropdown.visible { opacity: 1; visibility: visible; }
.topnav .lang-dropdown a {
  display: block; padding: 6px 14px; font-size: 12px;
  color: var(--text-3); text-decoration: none;
}
.topnav .lang-dropdown a.active { color: var(--amber); font-weight: 600; }
.topnav .lang-dropdown a:hover { background: var(--surface-2); color: var(--text); }

/* ── Sign-in button (anon) ── */
.topnav .signin-btn {
  background: var(--amber); color: #0e1014;
  padding: 7px 14px; border-radius: 7px;
  font-weight: 600; font-size: 12.5px;
  text-decoration: none;
  white-space: nowrap;
}
.topnav .signin-btn:hover { opacity: 0.9; }

/* ── Avatar dropdown (logged-in) ── */
.avatar-wrap { position: relative; }
.avatar {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 10px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 7px;
  cursor: pointer;
  font-family: inherit;
}
.avatar:hover { background: var(--surface-2); border-color: var(--border-2); }
.avatar .a-circle {
  width: 22px; height: 22px;
  background: var(--amber); color: #0e1014;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700;
  font-family: 'DM Sans', sans-serif;
}
.avatar .caret { font-size: 9px; opacity: 0.6; color: var(--text-3); }

.avatar-dropdown {
  position: absolute; top: 100%; right: 0; margin-top: 6px;
  width: 240px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; box-shadow: 0 16px 48px rgba(0,0,0,0.5);
  padding: 8px 0; z-index: 50;
  opacity: 0; visibility: hidden; transform: translateY(-4px);
  transition: opacity 0.15s, visibility 0.15s, transform 0.15s;
}
.avatar-dropdown.visible {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.avatar-email {
  padding: 12px 16px;
  font-family: 'DM Mono', monospace;
  font-size: 11.5px;
  color: var(--text);
  border-bottom: 1px solid var(--border);
}
.avatar-divider {
  height: 1px; background: var(--border); margin: 4px 0;
}
.avatar-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 16px;
  color: var(--text-2);
  font-size: 13px;
  text-decoration: none;
}
.avatar-item:hover { background: var(--surface-2); color: var(--text); }
.avatar-logout { color: var(--text-3); }

/* ── MAIN CONTENT (after top nav) ── */
.main-content {
  flex: 1; min-width: 0;
  padding-bottom: calc(var(--bottom-nav-h) + env(safe-area-inset-bottom, 0px) + 16px);
  /* Center page content on wide screens for visual consistency between
     hub pages (/tools, /picks) and individual tool pages (/volatility,
     /valuation, etc.). At < 1280px viewports this has no effect. */
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
}

/* ── Page head shared by /tools, /featured, /featured/<pool>, /alert ── */
.page-head {
  padding: 32px 64px 24px;
  border-bottom: 1px solid var(--border-2);
}
.page-head h1 {
  font-family: "DM Sans", "Noto Sans SC", -apple-system, sans-serif;
  font-weight: 600;
  font-size: clamp(22px, 5.5vw, 32px);
  margin: 0; color: var(--text);
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.page-head .back-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text-3);
  font-size: 12px;
  cursor: pointer;
  text-decoration: none;
  margin-bottom: 14px;
}
.page-head .back-btn:hover { color: var(--text); border-color: var(--border-2); }

/* ── Filter bar (used on /tools) ── */
.filter-bar {
  padding: 18px 64px;
  display: flex; align-items: center; gap: 10px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border-2);
}
.filter-bar .label {
  font-family: 'DM Mono', monospace;
  font-size: 10.5px; color: var(--text-3);
  letter-spacing: 0.1em; text-transform: uppercase;
  margin-right: 4px;
}
.filter-bar .chip {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-2);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12.5px;
  cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px;
  font-family: inherit;
}
.filter-bar .chip:hover { background: var(--surface-2); color: var(--text); }
.filter-bar .chip.active {
  background: rgba(247,166,0,0.12);
  border-color: rgba(247,166,0,0.4);
  color: var(--amber);
}
.filter-bar .chip .count {
  font-family: 'DM Mono', monospace;
  font-size: 10.5px; opacity: 0.7;
}

/* ── Tools grid (cards, used on /tools) ── */
.tools-body { padding: 28px 64px 36px; }
.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.tool-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 20px 16px;
  text-decoration: none;
  color: inherit;
  transition: border-color .15s;
  display: block;
}
.tool-card:hover { border-color: var(--border-2); }
.tool-card .top {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 8px; margin-bottom: 10px;
}
.tool-card .icon {
  width: 28px; height: 28px;
  background: var(--surface-2); border-radius: 7px;
  display: flex; align-items: center; justify-content: center;
  color: var(--amber);
  font-family: 'DM Mono', monospace;
  font-size: 12px; font-weight: 700;
  flex-shrink: 0;
}
.tool-card .tags {
  display: flex; gap: 4px; flex-wrap: wrap; justify-content: flex-end;
}
.tool-card .tag-mini {
  font-family: 'DM Mono', monospace;
  font-size: 9.5px; padding: 2px 7px;
  border-radius: 4px; letter-spacing: 0.05em;
}
.tool-card .tag-mini.opt { background: rgba(155,135,255,0.12); color: #b69dff; }
.tool-card .tag-mini.div { background: rgba(46,160,67,0.12); color: #4ade80; }
.tool-card .tag-mini.mkt { background: rgba(96,165,250,0.12); color: #60a5fa; }
.tool-card h3 {
  font-size: 14px; font-weight: 600; margin: 0 0 6px;
  color: var(--text);
}
.tool-card p {
  font-size: 12.5px; line-height: 1.5;
  color: var(--text-2); margin: 0;
}
.tool-card .stat {
  font-family: 'DM Mono', monospace;
  font-size: 10.5px; color: var(--text-3);
  margin-top: 12px; padding-top: 10px;
  border-top: 1px solid var(--border-2);
}

/* ── Featured pool cards (used on /featured hub) ── */
.featured-body { padding: 28px 64px 36px; }
.pool-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.pool-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px 24px 20px;
  text-decoration: none;
  color: inherit;
  transition: border-color .15s;
  display: block;
}
.pool-card:hover { border-color: var(--border-2); }
.pool-card .icon-lg {
  width: 38px; height: 38px;
  background: rgba(247,166,0,0.10);
  border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  color: var(--amber);
  font-family: 'DM Mono', monospace;
  font-size: 18px; font-weight: 700;
  margin-bottom: 14px;
}
.pool-card h3 {
  font-size: 16px; font-weight: 600; margin: 0 0 6px;
  color: var(--text); letter-spacing: -0.01em;
}
.pool-card p {
  font-size: 13px; line-height: 1.55;
  color: var(--text-2); margin: 0;
}
.pool-card .stat {
  font-family: 'DM Mono', monospace;
  font-size: 11px; color: var(--text-3);
  margin-top: 14px; padding-top: 12px;
  border-top: 1px solid var(--border-2);
  display: flex; align-items: center; justify-content: space-between;
}
.pool-card .stat .arrow { color: var(--amber); opacity: 0.7; }

/* ── Featured pool detail (table + grouping, used on /featured/<pool_id>) ── */
.featured-pool-body { padding: 28px 64px 36px; }
.pool-intro {
  background: linear-gradient(135deg, rgba(247,166,0,0.04) 0%, transparent 100%);
  border-left: 3px solid var(--amber);
  padding: 14px 18px;
  margin-bottom: 22px;
  border-radius: 0 8px 8px 0;
}
.pool-intro p { font-size: 12.5px; color: var(--text-2); margin: 0; line-height: 1.55; }
.grouped-table { margin-bottom: 28px; }
.group-head {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 10px;
}
.group-head h4 {
  font-size: 13.5px; color: var(--text);
  margin: 0; letter-spacing: -0.01em;
  font-weight: 600;
}
.group-head .group-count {
  font-family: 'DM Mono', monospace;
  font-size: 10.5px; color: var(--amber);
  background: rgba(247,166,0,0.12);
  padding: 2px 8px; border-radius: 4px;
}
table.pool-table {
  width: 100%; border-collapse: collapse;
  font-size: 13px; margin-bottom: 12px;
}
table.pool-table th {
  text-align: left;
  font-family: 'DM Mono', monospace;
  font-size: 10.5px; color: var(--text-3);
  letter-spacing: 0.05em; text-transform: uppercase;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  font-weight: 500;
}
table.pool-table td {
  padding: 12px;
  border-bottom: 1px solid var(--border-2);
  color: var(--text-2);
}

/* ── Alert sub-tabs (used on /today and /positions) ── */
.alert-subtabs {
  display: flex; gap: 4px;
  padding: 0 64px;
  border-bottom: 1px solid var(--border-2);
}
.alert-subtab {
  padding: 14px 18px;
  font-size: 13.5px;
  color: var(--text-2);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  margin-bottom: -1px;
  text-decoration: none;
  transition: color 0.15s, border-color 0.15s;
}
.alert-subtab:hover { color: var(--text); }
.alert-subtab.active { color: var(--text); border-bottom-color: var(--amber); }
.alert-subtab .ct {
  font-family: 'DM Mono', monospace;
  font-size: 10.5px;
  margin-left: 4px;
  color: var(--amber);
}
.alert-subtab:not(.active) .ct { color: var(--text-2); }

/* ── BOTTOM TAB BAR (mobile only — kept from original, with 4 items) ── */
.bottom-nav {
  position: fixed; bottom: 0; left: 0; right: 0;
  height: calc(var(--bottom-nav-h) + env(safe-area-inset-bottom, 0px));
  padding-bottom: env(safe-area-inset-bottom, 0px);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-top: 1px solid var(--border);
  display: flex; align-items: stretch;
  z-index: 200;
}
.tab-item {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 3px; cursor: pointer; text-decoration: none;
  color: var(--text-3); font-family: "DM Sans", sans-serif;
  font-size: 12px; font-weight: 500;
  position: relative;
  transition: color 0.15s;
  -webkit-tap-highlight-color: transparent;
}
.tab-item:hover { color: var(--text-2); }
.tab-item.active { color: var(--amber); }
.tab-item.active::before {
  content: ''; position: absolute;
  top: 0; left: 20%; right: 20%;
  height: 2px; border-radius: 0 0 2px 2px;
  background: var(--amber);
}
.tab-badge {
  position: absolute; top: 6px; right: 18%;
  min-width: 15px; height: 15px;
  background: var(--amber); color: var(--bg);
  border: 1.5px solid var(--bg);
  border-radius: 5px; font-family: "DM Mono", monospace;
  font-size: 9px; font-weight: 600;
  display: flex; align-items: center; justify-content: center;
  padding: 0 3px;
}

/* ── DESKTOP RULES ── */
@media (min-width: 1024px) {
  .bottom-nav { display: none; }   /* desktop uses topnav, hide bottom */
}

/* ── MOBILE RULES ── */
@media (max-width: 1023px) {
  .topnav { padding: 0; }
  .topnav .nav-brand { padding: 0 14px; font-size: 15px; }
  .topnav .nav-items { display: none; }  /* mobile uses bottom-nav for primary nav */
  .topnav .nav-actions { padding: 0 12px; gap: 8px; }
  .page-head, .filter-bar, .tools-body, .featured-body, .featured-pool-body, .alert-subtabs { padding-left: 16px; padding-right: 16px; }
  .tools-grid, .pool-grid { grid-template-columns: 1fr; }
}