/* SE Command Center v2 — "next-gen AI startup" theme.
   Dark, glassy, gradient accents. Still zero build step: plain CSS. */

:root {
  --bg: #05070c;
  --panel: #141a2e;
  --surface: rgba(255, 255, 255, 0.032);
  --surface-strong: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.09);
  --text: #f2f5fa;
  --muted: #9aa4b5;
  --faint: #626b7d;
  --violet: #7c6cff;
  --cyan: #4de1ff;
  --green: #3ddc84;
  --amber: #ffb224;
  --red: #ff5d5d;
  --grad: linear-gradient(135deg, var(--violet), var(--cyan));
  --radius: 16px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

::selection { background: rgba(124, 108, 255, 0.35); }

body {
  font-family: var(--font);
  color: var(--text);
  line-height: 1.55;
  padding: 0 1.25rem 3rem;
  background:
    radial-gradient(640px 420px at 12% -4%, rgba(124, 108, 255, 0.28), transparent 62%),
    radial-gradient(760px 480px at 88% 6%, rgba(77, 225, 255, 0.17), transparent 62%),
    radial-gradient(900px 600px at 50% 110%, rgba(124, 108, 255, 0.13), transparent 60%),
    var(--bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* faint dot grid fading out toward the bottom of the viewport */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1.5px);
  background-size: 28px 28px;
  -webkit-mask-image: radial-gradient(ellipse 90% 55% at 50% 0%, black 25%, transparent 78%);
  mask-image: radial-gradient(ellipse 90% 55% at 50% 0%, black 25%, transparent 78%);
}

/* ---------- header / hero ---------- */
header {
  border-bottom: 1px solid var(--border);
  padding: 3.25rem 0 2.25rem;
  margin-bottom: 2.5rem;
  position: relative;
}

.header-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 1rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
  border: 1px solid rgba(77, 225, 255, 0.28);
  background: rgba(77, 225, 255, 0.07);
  border-radius: 999px;
  padding: 0.3rem 0.85rem;
  margin-bottom: 1rem;
}

.pill .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px var(--green);
  animation: pulse 2.2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.85); }
}

h1 {
  font-size: clamp(2.3rem, 5vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.05;
  background: linear-gradient(180deg, #ffffff 30%, #aeb8cc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

h1 .grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.subtitle { color: var(--muted); font-size: 1.02rem; margin-top: 0.6rem; max-width: 34rem; }
.date { color: var(--faint); font-size: 0.9rem; font-variant-numeric: tabular-nums; }

/* ---------- layout ---------- */
main { max-width: 1120px; margin: 0 auto; position: relative; }

section { margin-bottom: 3rem; }

.eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--violet);
  margin-bottom: 0.4rem;
}

section h2 {
  font-size: 1.45rem;
  font-weight: 750;
  letter-spacing: -0.02em;
  margin-bottom: 0.3rem;
}

.section-note { color: var(--muted); font-size: 0.93rem; margin-bottom: 1.1rem; }

/* ---------- cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 1rem;
}

.card {
  position: relative;
  background: linear-gradient(180deg, var(--surface-strong), var(--surface));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.3rem 1.4rem;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
  overflow: hidden;
}

/* top gradient hairline on hover */
.card::after {
  content: "";
  position: absolute;
  top: 0; left: 10%; right: 10%;
  height: 1px;
  background: var(--grad);
  opacity: 0;
  transition: opacity 0.22s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: rgba(124, 108, 255, 0.6);
  box-shadow: 0 18px 50px -12px rgba(124, 108, 255, 0.6), 0 0 0 1px rgba(124, 108, 255, 0.12);
}

.card:hover::after { opacity: 1; }

.card .vendor {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--cyan);
  margin-bottom: 0.45rem;
}

.card h3 { font-size: 1.02rem; font-weight: 650; letter-spacing: -0.01em; margin-bottom: 0.45rem; line-height: 1.35; }
.card h3 a { color: var(--text); text-decoration: none; }
.card h3 a:hover {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.card p { color: var(--muted); font-size: 0.9rem; }

.card .why {
  color: var(--text);
  font-size: 0.88rem;
  border-left: 2px solid transparent;
  border-image: var(--grad) 1;
  padding-left: 0.7rem;
  margin: 0.6rem 0 0.15rem;
}

.card .meta { font-size: 0.75rem; color: var(--faint); margin-top: 0.45rem; }

/* ---------- tags & chips ---------- */
.tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 999px;
  padding: 0.18rem 0.7rem;
  color: var(--muted);
  margin-top: 0.7rem;
  margin-right: 0.35rem;
}

.tag.hot {
  border-color: rgba(255, 93, 93, 0.55);
  color: var(--red);
  background: rgba(255, 93, 93, 0.1);
  box-shadow: 0 0 18px -4px rgba(255, 93, 93, 0.75);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.15rem;
}

.chip {
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  border-radius: 999px;
  padding: 0.32rem 0.9rem;
  cursor: pointer;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all 0.18s ease;
}

.chip:hover { border-color: rgba(124, 108, 255, 0.5); color: var(--text); transform: translateY(-1px); }

.chip.active {
  background: var(--grad);
  border-color: transparent;
  color: #060913;
  box-shadow: 0 8px 26px -6px rgba(124, 108, 255, 0.85), 0 0 16px -4px rgba(77, 225, 255, 0.5);
}

.chip:focus-visible, .card h3 a:focus-visible, .tile:focus-visible, summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

#news-updated { color: var(--faint); }

/* ---------- tiles ---------- */
.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 1rem;
}

.tile {
  background: linear-gradient(180deg, var(--surface-strong), var(--surface));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem 1.1rem 1.25rem;
  text-align: center;
  text-decoration: none;
  color: var(--text);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
  display: block;
}

.tile:hover {
  transform: translateY(-3px);
  border-color: rgba(77, 225, 255, 0.45);
  box-shadow: 0 18px 50px -14px rgba(77, 225, 255, 0.45);
}

.tile .icon {
  font-size: 1.6rem;
  margin-bottom: 0.7rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.2rem;
  height: 3.2rem;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(124, 108, 255, 0.18), rgba(77, 225, 255, 0.12));
  border: 1px solid rgba(124, 108, 255, 0.25);
}

.tile h3 { font-size: 0.95rem; font-weight: 650; margin-bottom: 0.25rem; }
.tile p { color: var(--muted); font-size: 0.8rem; margin-bottom: 0.6rem; }

.status { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em; }
.status.live { color: var(--green); }
.status.soon { color: var(--amber); }

/* ---------- prompt of the day ---------- */
.prompt-wrap {
  border-radius: 20px;
  padding: 1px;
  background: var(--grad);
  box-shadow:
    0 0 48px -8px rgba(124, 108, 255, 0.65),
    0 24px 70px -24px rgba(77, 225, 255, 0.35);
}

.prompt-card {
  border-radius: 19px;
  background: linear-gradient(180deg, rgba(22, 26, 42, 0.94), rgba(10, 13, 22, 0.96));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 1.6rem 1.7rem;
}

.prompt-card .tag { margin: 0 0 0.85rem; }

#joke-text {
  font-size: 1.1rem;
  line-height: 1.62;
  color: var(--text);
  max-width: 62rem;
  font-weight: 450;
}

.joke-card .tag { margin: 0 0 0.85rem; }

#prompt-text {
  font-size: 1.1rem;
  line-height: 1.62;
  color: var(--text);
  max-width: 62rem;
  font-weight: 450;
}

.copy-btn {
  margin-top: 1.15rem;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  color: #060913;
  background: var(--grad);
  border: none;
  border-radius: 999px;
  padding: 0.55rem 1.5rem;
  cursor: pointer;
  box-shadow: 0 10px 28px -8px rgba(124, 108, 255, 0.8);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.copy-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 34px -8px rgba(124, 108, 255, 1);
}

.copy-btn:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }

/* ---------- changelog ---------- */
#changelog details {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 1rem 1.3rem;
}

#changelog summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  color: var(--text);
  font-size: 0.92rem;
}

#changelog summary::-webkit-details-marker { display: none; }

#changelog summary::before {
  content: "›";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 1rem;
  line-height: 1;
  transition: transform 0.2s ease, border-color 0.2s ease;
  flex-shrink: 0;
}

#changelog details[open] summary::before { transform: rotate(90deg); border-color: var(--violet); color: var(--cyan); }

#changelog details[open] summary { margin-bottom: 0.6rem; }

#changelog-body h4 { font-size: 0.92rem; font-weight: 700; margin: 1rem 0 0.3rem; color: var(--text); }
#changelog-body h4:first-child { margin-top: 0.4rem; }
#changelog-body ul { margin: 0 0 0.4rem 1.2rem; color: var(--muted); font-size: 0.88rem; }
#changelog-body li { margin-bottom: 0.22rem; }
#changelog-body li::marker { color: var(--violet); }
#changelog-body p { color: var(--muted); font-size: 0.88rem; }

/* ---------- footer ---------- */
footer {
  max-width: 1120px;
  margin: 3.5rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--faint);
  font-size: 0.82rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

footer a { color: var(--faint); text-decoration: underline; text-underline-offset: 3px; }
footer a:hover { color: var(--cyan); }

footer .grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 700;
}

@media (max-width: 640px) {
  body { padding: 0 1rem 2.5rem; }
  header { padding: 2.25rem 0 1.75rem; }
  .header-inner { align-items: flex-start; flex-direction: column; }
  section { margin-bottom: 2.25rem; }
  .cards { grid-template-columns: 1fr; }
  .prompt-card { padding: 1.25rem 1.2rem; }
  #prompt-text { font-size: 1rem; }
  #joke-text { font-size: 1rem; }
  .copy-btn { width: 100%; padding: 0.7rem 1.5rem; }
  .tile { padding: 1.2rem 1rem 1.1rem; }
}

/* ---- app switcher (top-left dropdown) ---- */
.brand-dropdown{position:relative}
button.brand{display:inline-flex;align-items:center;gap:10px;background:var(--panel);border:1px solid var(--border);color:var(--text);border-radius:12px;padding:8px 14px;cursor:pointer;font:inherit;font-weight:700;font-size:1rem}
button.brand:hover{border-color:var(--accent)}
.brand-badge{font-size:1.2rem;line-height:1}
.brand-name{white-space:nowrap}
.brand-caret{font-size:.65rem;color:var(--muted)}
.brand-menu{position:absolute;top:calc(100% + 10px);left:0;min-width:264px;background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:6px;box-shadow:0 16px 40px rgba(0,0,0,.5);display:none;z-index:60}
.brand-dropdown.open .brand-menu{display:block}
.brand-item{display:flex;align-items:center;gap:10px;width:100%;padding:9px 12px;border-radius:9px;color:var(--text);text-decoration:none;font-size:.9rem;background:none;border:0;cursor:pointer;font-family:inherit;text-align:left;box-sizing:border-box}
.brand-item:hover{background:rgba(88,166,255,.12)}
.brand-item .bi{font-size:1.05rem;line-height:1}
.brand-item.is-current{color:var(--accent);font-weight:700}
.brand-item .cur{margin-left:auto;font-size:.7rem;color:var(--muted);font-weight:400}