/* ==========================================================================
   CodeQuest 100 — Design System
   Dark charcoal surfaces + emerald-green primary accent
   ========================================================================== */

:root {
  --radius: 0.875rem;
  --radius-sm: calc(var(--radius) - 4px);
  --radius-md: calc(var(--radius) - 2px);
  --radius-lg: var(--radius);
  --radius-xl: calc(var(--radius) + 4px);
  --radius-2xl: calc(var(--radius) + 8px);
  --radius-3xl: calc(var(--radius) + 12px);

  --background: oklch(0.16 0.012 240);
  --foreground: oklch(0.97 0.005 240);
  --card: oklch(0.20 0.014 240);
  --card-hover: oklch(0.225 0.014 240);
  --popover: oklch(0.22 0.014 240);

  --primary: oklch(0.75 0.19 148);
  --primary-dim: oklch(0.60 0.15 148);
  --primary-foreground: oklch(0.16 0.02 155);
  --primary-glow: oklch(0.82 0.20 148);

  --secondary: oklch(0.27 0.015 240);
  --secondary-foreground: oklch(0.97 0.005 240);

  --muted: oklch(0.255 0.014 240);
  --muted-foreground: oklch(0.66 0.02 240);

  --accent: oklch(0.84 0.20 130);
  --accent-foreground: oklch(0.18 0.02 155);

  --destructive: oklch(0.65 0.22 20);
  --destructive-foreground: oklch(0.98 0.005 240);

  --border: oklch(0.30 0.014 240 / 0.7);
  --border-strong: oklch(0.34 0.016 240);
  --input: oklch(0.28 0.014 240);
  --ring: oklch(0.75 0.19 148);

  --sidebar: oklch(0.145 0.012 240);
  --sidebar-accent: oklch(0.23 0.014 240);
  --sidebar-border: oklch(0.26 0.014 240 / 0.7);

  --gradient-primary: linear-gradient(135deg, oklch(0.75 0.19 148), oklch(0.84 0.20 130));
  --gradient-surface: linear-gradient(180deg, oklch(0.23 0.014 240), oklch(0.185 0.012 240));
  --shadow-glow: 0 10px 40px -10px oklch(0.75 0.19 148 / 0.35);
  --shadow-card: 0 1px 0 oklch(1 0 0 / 0.03) inset, 0 10px 30px -14px oklch(0 0 0 / 0.55);
  --shadow-pop: 0 24px 60px -20px oklch(0 0 0 / 0.6);

  --font-display: "Space Grotesk", "Inter", ui-sans-serif, sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(1100px 520px at 8% -8%, oklch(0.75 0.19 148 / 0.10), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, oklch(0.84 0.20 130 / 0.07), transparent 55%),
    var(--background);
  color: var(--foreground);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  margin: 0;
}

p { margin: 0; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
img { display: block; max-width: 100%; }
ul { list-style: none; margin: 0; padding: 0; }

::selection { background: oklch(0.75 0.19 148 / 0.35); color: var(--foreground); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 99px; border: 2px solid var(--background); }
::-webkit-scrollbar-thumb:hover { background: var(--primary-dim); }

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 6px;
}

.icon { width: 1em; height: 1em; stroke-width: 2; flex-shrink: 0; }

/* ---------- utility ---------- */
.gradient-text {
  background-image: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0; padding: 0;
}

/* ==========================================================================
   Top bar (mobile)
   ========================================================================== */
.mobile-topbar {
  position: sticky; top: 0; z-index: 40;
  display: none;
  align-items: center; justify-content: space-between;
  padding: .75rem .9rem;
  background: oklch(0.16 0.012 240 / 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--sidebar-border);
}
.mobile-topbar .brand { display: flex; align-items: center; gap: .5rem; font-weight: 700; font-size: .95rem; }
.mobile-topbar .brand-mark {
  display: grid; place-items: center; width: 28px; height: 28px; border-radius: 9px;
  background-image: var(--gradient-primary); color: var(--primary-foreground);
}
.mobile-actions { display: flex; align-items: center; gap: .35rem; }
.icon-btn {
  display: grid; place-items: center; width: 38px; height: 38px; border-radius: 12px;
  background: var(--card); border: 1px solid var(--border); color: var(--foreground);
  transition: background .15s ease, border-color .15s ease, transform .15s ease;
}
.icon-btn:hover { background: var(--card-hover); border-color: var(--border-strong); transform: translateY(-1px); }
.icon-btn.ghost { background: transparent; border-color: transparent; }
.icon-btn.ghost:hover { background: var(--sidebar-accent); }

/* ==========================================================================
   Shell / grid
   ========================================================================== */
.shell {
  max-width: 1440px;
  margin: 0 auto;
  padding: 1.5rem;
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}

@media (min-width: 1024px) {
  .shell { grid-template-columns: 248px 1fr; align-items: start; }
}
@media (min-width: 1280px) {
  .shell { grid-template-columns: 248px minmax(0,1fr) 320px; }
}
.shell > main { min-width: 0; }

/* ==========================================================================
   Sidebar
   ========================================================================== */
.sidebar {
  display: none;
  background: var(--sidebar);
  border: 1px solid var(--sidebar-border);
  border-radius: var(--radius-3xl);
  padding: 1rem;
  box-shadow: var(--shadow-card);
}
@media (min-width: 1024px) {
  .sidebar { display: block; position: sticky; top: 1.5rem; max-height: calc(100vh - 3rem); overflow-y: auto; }
}

.profile-card {
  display: flex; align-items: center; gap: .7rem;
  background: var(--sidebar-accent);
  border: 1px solid var(--sidebar-border);
  border-radius: var(--radius-2xl);
  padding: .7rem;
}
.avatar {
  width: 44px; height: 44px; border-radius: 50%; flex-shrink: 0;
  object-fit: cover;
  border: 2px solid oklch(0.75 0.19 148 / 0.55);
}
.avatar-fallback {
  display: grid; place-items: center;
  width: 44px; height: 44px; border-radius: 50%; flex-shrink: 0;
  background-image: var(--gradient-primary);
  color: var(--primary-foreground); font-weight: 700; font-size: .85rem;
  border: 2px solid oklch(0.75 0.19 148 / 0.55);
}
.profile-card .who { min-width: 0; flex: 1; }
.profile-card .name { font-size: .875rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.profile-card .handle { font-size: .72rem; color: var(--muted-foreground); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.profile-card .flame {
  display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%;
  background: oklch(0.75 0.19 148 / 0.16); color: var(--primary); flex-shrink: 0; font-size: .8rem;
}

.nav { margin-top: 1.2rem; display: flex; flex-direction: column; gap: .2rem; }
.nav-item {
  display: flex; align-items: center; gap: .7rem;
  padding: .62rem .7rem; border-radius: var(--radius-xl);
  font-size: .85rem; font-weight: 500; color: oklch(0.94 0.005 240 / 0.8);
  background: transparent; border: none; width: 100%; text-align: left;
  transition: background .15s ease, color .15s ease;
}
.nav-item .icon { color: currentColor; }
.nav-item:hover { background: var(--sidebar-accent); color: var(--foreground); }
.nav-item.active {
  background-image: var(--gradient-primary); color: var(--primary-foreground);
  box-shadow: var(--shadow-glow); font-weight: 600;
}
.nav-item span.label { flex: 1; }
.nav-badge {
  font-size: .62rem; font-weight: 700; padding: .12rem .45rem; border-radius: 99px;
  background: oklch(0.75 0.19 148 / 0.16); color: var(--primary);
}
.nav-item.active .nav-badge { background: oklch(1 0 0 / 0.2); color: var(--primary-foreground); }

.side-divider { height: 1px; background: var(--sidebar-border); margin: 1.1rem 0; border: none; }
.side-label {
  font-size: .64rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--muted-foreground); padding: 0 .5rem; margin-bottom: .6rem;
}

.track-row {
  display: flex; align-items: center; gap: .6rem;
  border: 1px solid var(--sidebar-border); border-radius: var(--radius-xl);
  padding: .5rem .6rem; margin-bottom: .4rem;
}
.track-ico {
  display: grid; place-items: center; width: 32px; height: 32px; border-radius: 10px; flex-shrink: 0;
  background: oklch(1 0 0 / 0.04); border: 1px solid oklch(1 0 0 / 0.06);
}
.track-row .t-name { font-size: .76rem; font-weight: 600; }
.track-row .t-sub { font-size: .64rem; color: var(--muted-foreground); }

/* ==========================================================================
   Mobile drawer
   ========================================================================== */
.drawer-overlay {
  position: fixed; inset: 0; z-index: 60; display: none;
}
.drawer-overlay.open { display: block; }
.drawer-backdrop { position: absolute; inset: 0; background: oklch(0.1 0.01 240 / 0.7); backdrop-filter: blur(3px); }
.drawer-panel {
  position: absolute; left: 0; top: 0; height: 100%; width: 86%; max-width: 320px;
  padding: .75rem; overflow-y: auto;
  transform: translateX(-105%); transition: transform .28s cubic-bezier(.4,0,.2,1);
}
.drawer-overlay.open .drawer-panel { transform: translateX(0); }
.drawer-close {
  position: absolute; right: 1.1rem; top: 1.1rem; z-index: 5;
}

/* ==========================================================================
   Cards / sections
   ========================================================================== */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-3xl);
  box-shadow: var(--shadow-card);
  padding: 1.25rem;
}

.section-head {
  display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; margin-bottom: 1rem;
}
.section-head h2 { font-size: 1.05rem; font-weight: 700; }
.section-head .sub { font-size: .75rem; color: var(--muted-foreground); margin-top: .15rem; }
.link-btn {
  flex-shrink: 0; background: none; border: none; color: var(--primary);
  font-size: .68rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em;
}
.link-btn:hover { color: var(--primary-glow); }

/* ==========================================================================
   Main top bar
   ========================================================================== */
.main-top {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
}
.main-top h1 { font-size: 1.7rem; font-weight: 700; }
.main-top .sub { font-size: .85rem; color: var(--muted-foreground); margin-top: .25rem; }
.main-top .sub b { color: var(--primary); font-weight: 700; }
.main-top-actions { display: flex; align-items: center; gap: .5rem; }

.search-wrap { position: relative; display: none; }
@media (min-width: 768px) { .search-wrap { display: block; } }
.search-wrap .icon { position: absolute; left: .8rem; top: 50%; transform: translateY(-50%); color: var(--muted-foreground); }
.search-wrap input {
  width: 260px; height: 42px; padding: 0 .9rem 0 2.2rem; border-radius: var(--radius-xl);
  background: oklch(1 0 0 / 0.03); border: 1px solid var(--border-strong);
  color: var(--foreground); font-size: .85rem;
}
.search-wrap input::placeholder { color: var(--muted-foreground); }
.search-wrap input:focus { border-color: var(--primary); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  height: 42px; padding: 0 1.1rem; border-radius: var(--radius-xl);
  font-size: .82rem; font-weight: 600; border: 1px solid transparent;
  transition: opacity .15s ease, transform .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background-image: var(--gradient-primary); color: var(--primary-foreground); box-shadow: var(--shadow-glow);
}
.btn-primary:hover { opacity: .93; }
.btn-muted { background: var(--muted); color: var(--foreground); }
.btn-muted:hover { background-image: var(--gradient-primary); color: var(--primary-foreground); }
.btn-block { width: 100%; }
.btn-sm { height: 32px; padding: 0 .8rem; font-size: .72rem; border-radius: 10px; }

/* Mobile top submit */
.mobile-only { display: block; }
.desktop-only { display: none; }
@media (min-width: 1024px) { .mobile-only { display: none; } .desktop-only-flex { display: flex; } }
@media (max-width: 1023px) { .desktop-only-flex { display: none; } }

/* ==========================================================================
   Progress hero
   ========================================================================== */
.hero {
  position: relative; overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; right: -6rem; top: -6rem; width: 18rem; height: 18rem;
  border-radius: 50%; background: oklch(0.75 0.19 148 / 0.18); filter: blur(70px); pointer-events: none;
}
.hero-grid {
  position: relative; display: grid; gap: 1.5rem; grid-template-columns: 1fr;
}
@media (min-width: 1024px) { .hero-grid { grid-template-columns: 1.2fr 1fr; } }

.badge {
  display: inline-flex; align-items: center; gap: .3rem;
  padding: .3rem .65rem; border-radius: 99px; font-size: .7rem; font-weight: 700;
}
.badge-primary { background-image: var(--gradient-primary); color: var(--primary-foreground); }
.badge-outline { border: 1px solid var(--border-strong); color: var(--muted-foreground); }

.hero h2 { font-size: 1.55rem; margin-top: .8rem; }
@media (min-width: 640px) { .hero h2 { font-size: 2rem; } }
.hero .desc { margin-top: .4rem; font-size: .85rem; color: var(--muted-foreground); }

.progress-track {
  height: 8px; border-radius: 99px; background: var(--muted); overflow: hidden; margin-top: 1.2rem;
}
.progress-fill {
  height: 100%; border-radius: 99px; background-image: var(--gradient-primary);
  box-shadow: var(--shadow-glow); transition: width .6s ease;
}
.progress-labels { display: flex; justify-content: space-between; font-size: .68rem; color: var(--muted-foreground); margin-top: .5rem; }

.stat-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: .6rem; margin-top: 1.2rem; }
@media (min-width: 640px) { .stat-grid { grid-template-columns: repeat(4,1fr); } }
.stat {
  border-radius: var(--radius-xl); background: oklch(1 0 0 / 0.03); border: 1px solid var(--border);
  padding: .65rem .75rem;
}
.stat .label { display: flex; align-items: center; gap: .3rem; font-size: .66rem; color: var(--muted-foreground); }
.stat .value { margin-top: .25rem; font-size: 1.15rem; font-weight: 700; }

.heatmap-card { border-radius: var(--radius-2xl); background: oklch(1 0 0 / 0.03); border: 1px solid var(--border); padding: 1rem; }
.heatmap-title { font-size: .66rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--muted-foreground); margin-bottom: .7rem; }
.heatmap-grid { display: grid; grid-template-columns: repeat(10, 1fr); gap: .28rem; }
.heat-cell {
  aspect-ratio: 1; border-radius: 3px; background: oklch(1 0 0 / 0.06); cursor: default;
  transition: transform .12s ease;
}
.heat-cell:hover { transform: scale(1.35); }
.heat-cell.done { background: oklch(0.75 0.19 148 / 0.55); }
.heat-cell.today { background-image: var(--gradient-primary); box-shadow: var(--shadow-glow); }
.heat-legend { display: flex; align-items: center; justify-content: space-between; margin-top: .7rem; font-size: .62rem; color: var(--muted-foreground); }
.heat-legend .dots { display: flex; align-items: center; gap: .25rem; }
.heat-legend .dots span { width: 11px; height: 11px; border-radius: 3px; }

/* ==========================================================================
   Community feed
   ========================================================================== */
.feed-grid { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 1024px) { .feed-grid { grid-template-columns: 1fr 1fr; } }

.feed-card { overflow: hidden; padding: 0; }
.feed-header { display: flex; align-items: center; gap: .7rem; padding: .8rem 1rem; border-bottom: 1px solid var(--border); }
.feed-header .who { min-width: 0; flex: 1; }
.feed-header .name { font-size: .84rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.feed-header .meta { font-size: .68rem; color: var(--muted-foreground); }
.feed-kind {
  flex-shrink: 0; display: inline-flex; align-items: center; gap: .3rem;
  padding: .22rem .55rem; border-radius: 99px; background: oklch(0.75 0.19 148 / 0.14); color: var(--primary);
  font-size: .6rem; font-weight: 700; text-transform: uppercase; letter-spacing: .07em;
}

.feed-media {
  position: relative; height: 190px; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  background-size: cover; background-position: center;
}
.feed-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, oklch(0.16 0.012 240 / 0.15), oklch(0.16 0.012 240 / 0.75)); }
.feed-media .chip {
  position: relative; z-index: 1;
  background: oklch(0.16 0.012 240 / 0.7); border: 1px solid oklch(0.75 0.19 148 / 0.4);
  color: var(--primary); font-weight: 700; font-size: .72rem; padding: .4rem .85rem; border-radius: 99px;
  display: inline-flex; align-items: center; gap: .35rem; backdrop-filter: blur(3px);
}

.feed-body { padding: 1rem; }
.feed-body h3 { font-size: .95rem; font-weight: 700; }
.feed-body p { margin-top: .35rem; font-size: .82rem; color: var(--muted-foreground); line-height: 1.5; }

.feed-actions { margin-top: 1rem; display: flex; align-items: center; justify-content: space-between; gap: .5rem; }
.feed-social { display: flex; align-items: center; gap: .9rem; font-size: .74rem; color: var(--muted-foreground); }
.feed-social button { display: inline-flex; align-items: center; gap: .3rem; background: none; border: none; color: inherit; }
.feed-social button:hover { color: var(--primary); }
.feed-social button.liked { color: var(--primary); }
.feed-social button.liked .icon { fill: var(--primary); }

/* Timer post */
.timer-head { display: flex; align-items: center; justify-content: space-between; gap: .8rem; margin-bottom: .8rem; }
.timer-left { display: flex; align-items: center; gap: .6rem; }
.timer-ico { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 12px; background: oklch(0.75 0.19 148 / 0.14); color: var(--primary); }
.timer-left .tlabel { font-size: .64rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted-foreground); }
.timer-left .tvalue { font-size: 1.1rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.xp-chip { background: oklch(0.75 0.19 148 / 0.14); color: var(--primary); font-size: .68rem; font-weight: 700; padding: .25rem .55rem; border-radius: 99px; }

.quiz-q { margin-top: 1rem; font-size: .88rem; font-weight: 600; }
.quiz-choices { margin-top: .7rem; display: grid; gap: .5rem; grid-template-columns: 1fr; }
@media (min-width: 480px) { .quiz-choices { grid-template-columns: 1fr 1fr; } }
.quiz-choice {
  display: flex; align-items: center; justify-content: space-between; gap: .5rem;
  padding: .65rem .8rem; border-radius: var(--radius-xl); font-size: .82rem;
  background: oklch(1 0 0 / 0.03); border: 1px solid var(--border-strong); text-align: left;
  transition: all .15s ease; color: var(--foreground);
}
.quiz-choice:hover:not(:disabled) { border-color: oklch(0.75 0.19 148 / 0.5); }
.quiz-choice:disabled { cursor: default; }
.quiz-choice.correct { background: oklch(0.75 0.19 148 / 0.18); border-color: oklch(0.75 0.19 148 / 0.6); }
.quiz-choice.wrong { background: oklch(0.65 0.22 20 / 0.16); border-color: oklch(0.65 0.22 20 / 0.4); }
.quiz-choice.selected:not(.correct):not(.wrong) { background: oklch(0.75 0.19 148 / 0.08); border-color: oklch(0.75 0.19 148 / 0.4); }
.quiz-result { margin-top: .7rem; font-size: .76rem; font-weight: 600; }
.quiz-result.ok { color: var(--primary); }
.quiz-result.meh { color: var(--muted-foreground); }

/* Quote post */
.quote-wrap { position: relative; padding: 1.4rem; overflow: hidden; }
.quote-mark { position: absolute; left: -.6rem; top: 0; opacity: .16; color: var(--primary); }
.quote-wrap blockquote { position: relative; font-size: 1.02rem; font-weight: 500; line-height: 1.55; padding-left: .6rem; }
.quote-wrap .by { position: relative; padding-left: .6rem; margin-top: .7rem; font-size: .7rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted-foreground); }

/* Resource post */
.resource-list { margin-top: .8rem; display: flex; flex-direction: column; gap: .45rem; }
.resource-link {
  display: flex; align-items: center; justify-content: space-between; gap: .6rem;
  padding: .6rem .8rem; border-radius: var(--radius-xl); background: oklch(1 0 0 / 0.03);
  border: 1px solid var(--border); font-size: .82rem; transition: border-color .15s ease;
}
.resource-link:hover { border-color: oklch(0.75 0.19 148 / 0.5); }
.resource-link .l { display: inline-flex; align-items: center; gap: .5rem; min-width: 0; }
.resource-link span.t { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.resource-link .icon:first-child { color: var(--primary); }

/* ==========================================================================
   Suggested challenges
   ========================================================================== */
.challenge-grid { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 640px) { .challenge-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1440px) { .challenge-grid { grid-template-columns: repeat(4,1fr); } }

.challenge-card {
  border-radius: var(--radius-2xl); overflow: hidden; background: oklch(1 0 0 / 0.03);
  border: 1px solid var(--border); transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.challenge-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-glow); border-color: oklch(0.75 0.19 148 / 0.45); }
.challenge-banner {
  height: 108px; display: flex; align-items: center; justify-content: center; position: relative;
  background-size: cover; background-position: center;
}
.challenge-banner::after { content:""; position: absolute; inset: 0; background: linear-gradient(180deg, oklch(0.16 0.012 240/.1), oklch(0.16 0.012 240/.72)); }
.challenge-banner .day-pill {
  position: relative; z-index: 1; background: oklch(0.16 0.012 240 / 0.72); border: 1px solid oklch(0.75 0.19 148 / 0.4);
  color: var(--primary); font-weight: 700; font-size: .74rem; padding: .3rem .8rem; border-radius: 99px;
}
.challenge-body { padding: .9rem; }
.challenge-tag { font-size: .62rem; font-weight: 700; text-transform: uppercase; letter-spacing: .09em; color: var(--muted-foreground); }
.challenge-title { margin-top: .3rem; font-size: .86rem; font-weight: 600; line-height: 1.35; min-height: 2.4em; }
.challenge-meta { margin-top: .7rem; display: flex; align-items: center; justify-content: space-between; font-size: .7rem; color: var(--muted-foreground); }
.challenge-meta span { display: inline-flex; align-items: center; gap: .28rem; }
.challenge-meta .xp { color: var(--primary); }

/* ==========================================================================
   Tracks
   ========================================================================== */
.track-grid { display: grid; gap: .8rem; grid-template-columns: repeat(2,1fr); }
@container tracks (min-width: 460px) { .track-grid { grid-template-columns: repeat(4,1fr); } }
.track-tile {
  position: relative; overflow: hidden; border-radius: var(--radius-2xl); padding: 1rem;
  border: 1px solid var(--border); transition: transform .18s ease;
}
.track-tile:hover { transform: translateY(-2px); }
.track-tile .t-icon {
  display: grid; place-items: center; width: 40px; height: 40px; border-radius: var(--radius-xl);
  background: oklch(0.16 0.012 240 / 0.5); border: 1px solid var(--border);
}
.track-tile .t-title { margin-top: .75rem; font-size: .85rem; font-weight: 600; line-height: 1.3; overflow-wrap: break-word; }
.track-tile .t-status { margin-top: .2rem; font-size: .68rem; color: var(--muted-foreground); }
.track-tile .soon-pill {
  position: absolute; right: .7rem; top: .7rem; font-size: .55rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em;
  background: oklch(0.16 0.012 240 / 0.55); color: var(--muted-foreground); padding: .18rem .5rem; border-radius: 99px; border: 1px solid var(--border);
}

/* ==========================================================================
   Missions
   ========================================================================== */
.mission-list { display: flex; flex-direction: column; gap: .5rem; }
.mission-item {
  display: flex; align-items: center; gap: .7rem; padding: .65rem .8rem; border-radius: var(--radius-xl);
  background: oklch(1 0 0 / 0.03); border: 1px solid var(--border); transition: border-color .15s ease;
}
.mission-item:hover { border-color: oklch(0.75 0.19 148 / 0.45); }
.mission-item.done { opacity: .55; }
.mission-item.done .m-title { text-decoration: line-through; }
.mission-check {
  display: grid; place-items: center; width: 32px; height: 32px; border-radius: 10px; flex-shrink: 0;
  background: oklch(0.75 0.19 148 / 0.14); color: var(--primary); border: none;
}
.mission-item.done .mission-check { background-image: var(--gradient-primary); color: var(--primary-foreground); }
.mission-item .m-title { flex: 1; font-size: .82rem; min-width: 0; }
.mission-xp { font-size: .68rem; font-weight: 700; color: var(--primary); background: oklch(0.75 0.19 148 / 0.14); padding: .2rem .5rem; border-radius: 99px; flex-shrink: 0; }

/* ==========================================================================
   Leaderboard
   ========================================================================== */
.leaderboard-wrap { border-radius: var(--radius-2xl); overflow-x: auto; overflow-y: hidden; border: 1px solid var(--border); -webkit-overflow-scrolling: touch; }
table.leaderboard { width: 100%; min-width: 480px; border-collapse: collapse; font-size: .84rem; }
table.leaderboard thead { background: oklch(1 0 0 / 0.03); }
table.leaderboard th {
  text-align: left; padding: .7rem 1rem; font-size: .62rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted-foreground);
}
table.leaderboard th.right, table.leaderboard td.right { text-align: right; }
table.leaderboard td { padding: .7rem 1rem; border-top: 1px solid var(--border); }
table.leaderboard tbody tr { transition: background .15s ease; }
table.leaderboard tbody tr:hover { background: oklch(1 0 0 / 0.025); }
.rank-pill {
  display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%;
  font-size: .68rem; font-weight: 700; background: var(--muted);
}
.rank-pill.gold { background-image: var(--gradient-primary); color: var(--primary-foreground); }
.member-cell { display: flex; align-items: center; gap: .65rem; }
.member-cell .m-name { font-weight: 600; }
.streak-cell { display: inline-flex; align-items: center; gap: .3rem; color: var(--primary); }

/* ==========================================================================
   Right rail
   ========================================================================== */
.right-rail { display: none; }
@media (min-width: 1280px) {
  .right-rail { display: flex; flex-direction: column; gap: 1.1rem; position: sticky; top: 1.5rem; max-height: calc(100vh - 3rem); overflow-y: auto; }
}
.right-rail-inline { display: flex; flex-direction: column; gap: 1.1rem; }
@media (min-width: 1280px) { .right-rail-inline { display: none; } }

.rail-panel {
  background: var(--sidebar); border: 1px solid var(--sidebar-border); border-radius: var(--radius-3xl);
  padding: 1.1rem; box-shadow: var(--shadow-card);
}

.streak-card {
  position: relative; overflow: hidden; border-radius: var(--radius-2xl); padding: 1rem;
  background: linear-gradient(135deg, oklch(0.75 0.19 148 / 0.22), oklch(0.75 0.19 148 / 0.04));
  border: 1px solid oklch(0.75 0.19 148 / 0.35);
}
.streak-top { display: flex; align-items: center; gap: .7rem; }
.streak-ico { display: grid; place-items: center; width: 44px; height: 44px; border-radius: var(--radius-xl); background: oklch(0.75 0.19 148 / 0.25); color: var(--primary); }
.streak-top .s-label { font-size: .64rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted-foreground); }
.streak-top .s-value { font-size: 1.15rem; font-weight: 700; color: var(--primary); }
.streak-card .s-note { margin-top: .65rem; font-size: .74rem; color: var(--muted-foreground); }
.streak-card .s-note b { color: var(--foreground); }

.rail-label { font-size: .62rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--muted-foreground); margin-bottom: .6rem; }
.winner-row {
  display: flex; align-items: center; gap: .6rem; padding: .55rem; border-radius: var(--radius-xl);
  background: var(--sidebar-accent); border: 1px solid var(--sidebar-border); margin-bottom: .45rem;
}
.winner-row .w-emoji { font-size: 1.1rem; }
.winner-row .w-role { font-size: .68rem; color: var(--muted-foreground); }
.winner-row .w-name { font-size: .78rem; font-weight: 600; }

.buddy-row {
  display: flex; align-items: center; gap: .6rem; padding: .4rem .45rem; border-radius: var(--radius-xl);
  transition: background .15s ease;
}
.buddy-row:hover { background: var(--sidebar-accent); }
.buddy-avatar-wrap { position: relative; flex-shrink: 0; }
.buddy-avatar { width: 34px; height: 34px; border-radius: 50%; object-fit: cover; }
.online-dot { position: absolute; right: -1px; bottom: -1px; width: 10px; height: 10px; border-radius: 50%; background: var(--primary); border: 2px solid var(--sidebar); }
.buddy-row .b-name { flex: 1; font-size: .82rem; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.buddy-row .icon { color: var(--muted-foreground); }

/* ==========================================================================
   Split layout helper
   ========================================================================== */
.split { display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
@media (min-width: 1024px) { .split { grid-template-columns: 1.4fr 1fr; } }
.split-wide { display: grid; gap: 1.5rem; grid-template-columns: 1fr; align-items: start; }
@media (min-width: 1024px) { .split-wide { grid-template-columns: 1.6fr 1fr; } }
.tracks-panel { container: tracks / inline-size; }

/* ==========================================================================
   View header / breadcrumb (used by non-dashboard views)
   ========================================================================== */
.view-back {
  display: inline-flex; align-items: center; gap: .35rem; background: none; border: none;
  color: var(--muted-foreground); font-size: .76rem; font-weight: 600; margin-bottom: .2rem;
}
.view-back:hover { color: var(--primary); }

/* ==========================================================================
   Tabs / filter chips
   ========================================================================== */
.tab-row { display: flex; align-items: center; gap: .4rem; flex-wrap: wrap; }
.tab-btn {
  background: oklch(1 0 0 / 0.03); border: 1px solid var(--border-strong); color: var(--muted-foreground);
  font-size: .76rem; font-weight: 600; padding: .5rem .9rem; border-radius: 99px; transition: all .15s ease;
}
.tab-btn:hover { color: var(--foreground); border-color: var(--primary); }
.tab-btn.active { background-image: var(--gradient-primary); color: var(--primary-foreground); border-color: transparent; }

.chip-row { display: flex; align-items: center; gap: .4rem; flex-wrap: wrap; }
.chip-btn {
  background: transparent; border: 1px solid var(--border); color: var(--muted-foreground);
  font-size: .72rem; font-weight: 600; padding: .4rem .75rem; border-radius: 99px; transition: all .15s ease;
  display: inline-flex; align-items: center; gap: .3rem;
}
.chip-btn:hover { border-color: var(--primary); color: var(--foreground); }
.chip-btn.active { background: oklch(0.75 0.19 148 / 0.16); border-color: oklch(0.75 0.19 148 / 0.5); color: var(--primary); }

/* ==========================================================================
   Forms
   ========================================================================== */
.field { display: flex; flex-direction: column; gap: .4rem; }
.field label { font-size: .74rem; font-weight: 600; color: var(--muted-foreground); }
.field input, .field textarea, .field select {
  width: 100%; border-radius: var(--radius-xl); background: oklch(1 0 0 / 0.03);
  border: 1px solid var(--border-strong); color: var(--foreground); font-family: inherit;
  font-size: .85rem; padding: .7rem .9rem;
}
.field textarea { resize: vertical; min-height: 90px; }
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--primary); }
.field input::placeholder, .field textarea::placeholder { color: var(--muted-foreground); }
.form-grid { display: grid; gap: .9rem; grid-template-columns: 1fr; }
@media (min-width: 640px) { .form-grid.two { grid-template-columns: 1fr 1fr; } }

/* ==========================================================================
   Today's Challenge (detail view)
   ========================================================================== */
.challenge-hero {
  position: relative; overflow: hidden; border-radius: var(--radius-3xl); padding: 1.6rem;
  background-size: cover; background-position: center;
}
.challenge-hero::before { content:""; position:absolute; inset:0; background: linear-gradient(120deg, oklch(0.16 0.012 240/.92), oklch(0.16 0.012 240/.55)); }
.challenge-hero-inner { position: relative; z-index: 1; }
.challenge-hero h2 { font-size: 1.6rem; margin-top: .6rem; max-width: 30rem; }
.challenge-hero .desc { margin-top: .5rem; max-width: 34rem; font-size: .87rem; color: oklch(0.92 0.01 240 / 0.85); }
.challenge-hero-meta { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.1rem; }
.hero-meta-chip {
  display: inline-flex; align-items: center; gap: .4rem; background: oklch(0.1 0.012 240 / 0.55);
  border: 1px solid oklch(1 0 0 / 0.12); backdrop-filter: blur(4px);
  padding: .45rem .8rem; border-radius: 99px; font-size: .74rem; font-weight: 600; color: oklch(0.95 0.01 240);
}
.hero-meta-chip .icon { color: var(--primary); }

.checklist { display: flex; flex-direction: column; gap: .55rem; }
.checklist-item { display: flex; align-items: flex-start; gap: .6rem; font-size: .84rem; color: var(--foreground); }
.checklist-item .icon { color: var(--primary); margin-top: .15rem; flex-shrink: 0; }

.timeline { display: flex; flex-direction: column; }
.timeline-item { position: relative; padding: 0 0 1.2rem 1.6rem; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: ""; position: absolute; left: 0; top: .15rem; width: 10px; height: 10px; border-radius: 50%;
  background-image: var(--gradient-primary); box-shadow: var(--shadow-glow);
}
.timeline-item::after {
  content: ""; position: absolute; left: 4px; top: 1rem; bottom: 0; width: 1px; background: var(--border-strong);
}
.timeline-item:last-child::after { display: none; }
.timeline-item .tl-label { font-size: .68rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--muted-foreground); }
.timeline-item .tl-title { font-size: .84rem; font-weight: 600; margin-top: .1rem; }

.comment-row { display: flex; gap: .6rem; padding: .7rem 0; border-top: 1px solid var(--border); }
.comment-row:first-child { border-top: none; }
.comment-row .c-body { flex: 1; min-width: 0; }
.comment-row .c-name { font-size: .8rem; font-weight: 600; }
.comment-row .c-time { font-size: .66rem; color: var(--muted-foreground); margin-left: .4rem; }
.comment-row .c-text { font-size: .82rem; color: var(--muted-foreground); margin-top: .2rem; line-height: 1.5; }

/* ==========================================================================
   Leaderboard (full view) — podium + your-rank card
   ========================================================================== */
.podium { display: grid; grid-template-columns: repeat(3,1fr); gap: .8rem; align-items: end; }
.podium-tile {
  border-radius: var(--radius-2xl); border: 1px solid var(--border); padding: 1rem .8rem; text-align: center;
  background: oklch(1 0 0 / 0.03);
}
.podium-tile.first { background: linear-gradient(180deg, oklch(0.75 0.19 148/.22), oklch(0.75 0.19 148/.03)); border-color: oklch(0.75 0.19 148/.5); padding-top: 1.4rem; }
.podium-medal { font-size: 1.6rem; }
.podium-tile .p-name { margin-top: .5rem; font-size: .84rem; font-weight: 700; }
.podium-tile .p-xp { margin-top: .15rem; font-size: .72rem; color: var(--primary); font-weight: 700; }

.your-rank-card {
  display: flex; align-items: center; gap: .9rem; border-radius: var(--radius-2xl);
  background: linear-gradient(135deg, oklch(0.75 0.19 148/.16), oklch(0.75 0.19 148/.02));
  border: 1px solid oklch(0.75 0.19 148/.4); padding: 1rem 1.1rem;
}
.your-rank-card .yr-rank { font-family: var(--font-display); font-size: 1.7rem; font-weight: 700; color: var(--primary); }
.your-rank-card .yr-title { font-size: .68rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted-foreground); }
.your-rank-card .yr-name { font-size: .92rem; font-weight: 700; }

/* ==========================================================================
   Missions (full board)
   ========================================================================== */
.mission-stat-row { display: grid; grid-template-columns: repeat(3,1fr); gap: .6rem; }
.mission-cat { margin-top: 1.4rem; }
.mission-cat:first-child { margin-top: 0; }
.mission-cat-head { display: flex; align-items: center; gap: .5rem; margin-bottom: .7rem; }
.mission-cat-head .icon { color: var(--primary); }
.mission-cat-head h3 { font-size: .86rem; font-weight: 700; }
.mission-cat-head .count { font-size: .68rem; color: var(--muted-foreground); }

/* ==========================================================================
   Badges gallery
   ========================================================================== */
.badge-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: .9rem; }
@media (min-width: 640px) { .badge-grid { grid-template-columns: repeat(3,1fr); } }
@media (min-width: 1024px) { .badge-grid { grid-template-columns: repeat(4,1fr); } }
.badge-tile {
  text-align: center; border-radius: var(--radius-2xl); border: 1px solid var(--border);
  background: oklch(1 0 0 / 0.03); padding: 1.2rem 1rem; transition: transform .18s ease;
}
.badge-tile:hover { transform: translateY(-3px); }
.badge-tile.locked { opacity: .45; }
.badge-medal {
  width: 56px; height: 56px; border-radius: 50%; margin: 0 auto; display: grid; place-items: center;
  background-image: var(--gradient-primary); box-shadow: var(--shadow-glow); font-size: 1.5rem;
}
.badge-tile.locked .badge-medal { background: var(--muted); box-shadow: none; color: var(--muted-foreground); }
.badge-tile .b-name { margin-top: .7rem; font-size: .8rem; font-weight: 700; }
.badge-tile .b-desc { margin-top: .2rem; font-size: .68rem; color: var(--muted-foreground); line-height: 1.4; }

/* ==========================================================================
   Resources library
   ========================================================================== */
.resource-grid { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 640px) { .resource-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1280px) { .resource-grid { grid-template-columns: repeat(3,1fr); } }
.resource-tile {
  border-radius: var(--radius-2xl); border: 1px solid var(--border); background: oklch(1 0 0 / 0.03);
  padding: 1rem; transition: border-color .15s ease, transform .15s ease;
}
.resource-tile:hover { border-color: oklch(0.75 0.19 148/.5); transform: translateY(-2px); }
.resource-tile .r-icon {
  display: grid; place-items: center; width: 40px; height: 40px; border-radius: var(--radius-xl);
  background: oklch(0.75 0.19 148/.14); color: var(--primary);
}
.resource-tile .r-title { margin-top: .75rem; font-size: .86rem; font-weight: 700; }
.resource-tile .r-desc { margin-top: .3rem; font-size: .76rem; color: var(--muted-foreground); line-height: 1.5; min-height: 2.2em; }
.resource-tile .r-meta { margin-top: .8rem; display: flex; align-items: center; justify-content: space-between; font-size: .68rem; color: var(--muted-foreground); }
.resource-tile .r-meta .tag { color: var(--primary); font-weight: 700; }

/* ==========================================================================
   Community directory
   ========================================================================== */
.spotlight-card {
  display: flex; align-items: center; gap: 1rem; border-radius: var(--radius-2xl);
  background: linear-gradient(135deg, oklch(0.75 0.19 148/.18), oklch(0.84 0.2 130/.05));
  border: 1px solid oklch(0.75 0.19 148/.4); padding: 1.1rem; flex-wrap: wrap;
}
.spotlight-card .sp-avatar { width: 56px; height: 56px; border-radius: 50%; border: 2px solid oklch(0.75 0.19 148/.6); }
.spotlight-card .sp-label { font-size: .66rem; text-transform: uppercase; letter-spacing: .1em; color: var(--primary); font-weight: 700; }
.spotlight-card .sp-name { font-size: 1rem; font-weight: 700; margin-top: .15rem; }
.spotlight-card .sp-note { font-size: .8rem; color: var(--muted-foreground); margin-top: .2rem; }

.member-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: .8rem; }
@media (min-width: 640px) { .member-grid { grid-template-columns: repeat(3,1fr); } }
@media (min-width: 1280px) { .member-grid { grid-template-columns: repeat(4,1fr); } }
.member-card {
  text-align: center; border-radius: var(--radius-2xl); border: 1px solid var(--border);
  background: oklch(1 0 0 / 0.03); padding: 1rem; transition: transform .15s ease, border-color .15s ease;
}
.member-card:hover { transform: translateY(-2px); border-color: oklch(0.75 0.19 148/.4); }
.member-card .m-avatar { width: 52px; height: 52px; border-radius: 50%; margin: 0 auto; object-fit: cover; }
.member-card .m-name { margin-top: .6rem; font-size: .8rem; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.member-card .m-track { font-size: .66rem; color: var(--muted-foreground); margin-top: .1rem; }
.member-card .m-xp { margin-top: .5rem; font-size: .68rem; font-weight: 700; color: var(--primary); background: oklch(0.75 0.19 148/.14); border-radius: 99px; padding: .2rem .5rem; display: inline-block; }

/* ==========================================================================
   Events
   ========================================================================== */
.event-list { display: flex; flex-direction: column; gap: .8rem; }
.event-item {
  display: flex; gap: 1rem; border-radius: var(--radius-2xl); border: 1px solid var(--border);
  background: oklch(1 0 0 / 0.03); padding: 1rem; align-items: center; flex-wrap: wrap;
}
.event-date {
  flex-shrink: 0; width: 58px; height: 58px; border-radius: var(--radius-xl); text-align: center;
  background-image: var(--gradient-primary); color: var(--primary-foreground); display: flex; flex-direction: column;
  align-items: center; justify-content: center;
}
.event-date .d-num { font-size: 1.15rem; font-weight: 800; line-height: 1; }
.event-date .d-mon { font-size: .6rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.event-item .e-body { flex: 1; min-width: 180px; }
.event-item .e-title { font-size: .88rem; font-weight: 700; }
.event-item .e-meta { margin-top: .3rem; display: flex; flex-wrap: wrap; gap: .8rem; font-size: .72rem; color: var(--muted-foreground); }
.event-item .e-meta span { display: inline-flex; align-items: center; gap: .3rem; }

/* ==========================================================================
   GitHub hub
   ========================================================================== */
.gh-connect {
  display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; justify-content: space-between;
  border-radius: var(--radius-2xl); border: 1px solid var(--border); background: oklch(1 0 0 / 0.03); padding: 1.1rem;
}
.gh-connect .gh-left { display: flex; align-items: center; gap: .8rem; }
.gh-connect .gh-icon { display: grid; place-items: center; width: 44px; height: 44px; border-radius: var(--radius-xl); background: oklch(1 0 0 / 0.06); }
.gh-stat-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: .6rem; }
@media (min-width: 640px) { .gh-stat-grid { grid-template-columns: repeat(4,1fr); } }
.contrib-grid { display: grid; grid-template-columns: repeat(26, 1fr); gap: 3px; }
.contrib-cell { aspect-ratio: 1; border-radius: 2px; background: oklch(1 0 0 / 0.06); }
.contrib-cell.l1 { background: oklch(0.75 0.19 148 / 0.25); }
.contrib-cell.l2 { background: oklch(0.75 0.19 148 / 0.5); }
.contrib-cell.l3 { background: oklch(0.75 0.19 148 / 0.8); }
.repo-row {
  display: flex; align-items: center; gap: .8rem; padding: .8rem; border-radius: var(--radius-xl);
  border: 1px solid var(--border); background: oklch(1 0 0 / 0.03); margin-bottom: .55rem; flex-wrap: wrap;
}
.repo-row .repo-name { font-size: .84rem; font-weight: 700; font-family: 'Space Grotesk', monospace; }
.repo-row .repo-desc { font-size: .74rem; color: var(--muted-foreground); margin-top: .15rem; }
.repo-row .repo-meta { margin-left: auto; display: flex; gap: .9rem; font-size: .72rem; color: var(--muted-foreground); }
.repo-row .repo-meta span { display: inline-flex; align-items: center; gap: .3rem; }
.lang-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }

/* ==========================================================================
   Empty state
   ========================================================================== */
.empty-state { text-align: center; padding: 2.5rem 1rem; color: var(--muted-foreground); }
.empty-state .icon { width: 32px; height: 32px; color: var(--muted-foreground); margin-bottom: .6rem; }
.empty-state p { font-size: .84rem; }


.toast {
  position: fixed; bottom: 1.25rem; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--card); border: 1px solid oklch(0.75 0.19 148 / 0.5); box-shadow: var(--shadow-pop);
  color: var(--foreground); padding: .75rem 1.1rem; border-radius: var(--radius-xl);
  font-size: .82rem; font-weight: 600; display: flex; align-items: center; gap: .5rem;
  opacity: 0; pointer-events: none; transition: all .28s cubic-bezier(.4,0,.2,1); z-index: 100;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast .icon { color: var(--primary); }

/* ==========================================================================
   Reveal-on-scroll
   ========================================================================== */
.reveal { opacity: 1; transform: none; }
@media (prefers-reduced-motion: no-preference) {
  .reveal:not(.in) { opacity: 0; transform: translateY(14px); }
  .reveal { transition: opacity .5s ease, transform .5s ease; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1023px) {
  .mobile-topbar { display: flex; }
  .shell { padding: .85rem; gap: 1rem; }
}