:root {
  --bg: #f7f8fa;
  --card: #ffffff;
  --text: #1a1d26;
  --muted: #6b7280;
  --border: #e5e7eb;
  --accent: #2563eb;
  --accent-soft: #eff6ff;
  --danger: #dc2626;
  --radius: 16px;
  --shadow: 0 1px 2px rgba(16,24,40,.04), 0 8px 24px rgba(16,24,40,.06);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--bg); color: var(--text); }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }

.shell { min-height: 100vh; display: flex; flex-direction: column; }
.topbar {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 20px; background: var(--card); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 650; letter-spacing: -.02em; }
.brand-mark { display: none !important; }
.search {
  flex: 1; max-width: 420px; margin: 0 auto;
  display: flex; align-items: center; gap: 8px;
  background: var(--bg); border: 1px solid var(--border); border-radius: 999px;
  padding: 8px 14px; color: var(--muted);
}
.search input {
  border: 0; outline: 0; background: transparent; width: 100%; color: var(--text);
}
.top-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.chip {
  border: 1px solid var(--border); background: var(--card); border-radius: 999px;
  padding: 6px 12px; font-size: 12px; color: var(--muted); cursor: pointer;
}
.chip:hover { border-color: #c7d2fe; color: var(--accent); }
.avatar {
  width: 34px; height: 34px; border-radius: 999px; background: #fde68a; color: #92400e;
  display: grid; place-items: center; font-weight: 700; font-size: 12px; cursor: pointer;
  border: 1px solid #fcd34d;
}

.main { flex: 1; width: min(960px, 100%); margin: 0 auto; padding: 28px 16px 48px; }
.hero {
  text-align: center; margin: 8px 0 28px;
}
.hero h1 { margin: 0 0 6px; font-size: 22px; letter-spacing: -.03em; }
.hero p { margin: 0; color: var(--muted); font-size: 14px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 18px 14px;
  justify-items: center;
  max-width: 720px;
  margin: 0 auto;
}
.app-tile {
  width: 112px; text-align: center; cursor: pointer; user-select: none;
  background: transparent; border: 0; padding: 8px; border-radius: 18px;
}
.app-tile { position: relative; }
.app-tile::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 36px;
  width: 56px;
  height: 56px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(circle, var(--glow, rgba(37,99,235,.28)) 0%, transparent 72%);
  filter: blur(12px);
  opacity: .5;
  pointer-events: none;
  z-index: 0;
}
.app-tile .app-icon,
.app-tile .app-name { position: relative; z-index: 1; }
.app-tile:hover .app-icon { transform: translateY(-2px); box-shadow: var(--shadow); }
.app-tile:hover::before { opacity: .8; }

.app-tile:active .app-icon { transform: scale(.96); }
.app-icon {
  width: 64px; height: 64px; margin: 0 auto 10px; border-radius: 16px;
  display: grid; place-items: center; color: #fff; transition: .15s ease;
  box-shadow: 0 1px 2px rgba(0,0,0,.06);
}
.app-icon svg { width: 28px; height: 28px; }
.app-icon--img {
  background: #fff !important;
  padding: 8px;
  overflow: hidden;
}
.app-icon--img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}
.app-name { font-size: 13px; font-weight: 550; color: var(--text); }

.side-panel {
  position: fixed; top: 64px; right: 16px; width: min(320px, calc(100vw - 24px));
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 14px; display: none; z-index: 20;
}
.side-panel.open { display: block; }
.side-panel h3 { margin: 0 0 8px; font-size: 14px; }
.side-panel .row { display: flex; justify-content: space-between; gap: 8px; font-size: 13px; padding: 6px 0; border-bottom: 1px solid var(--border); }
.side-panel .row:last-child { border-bottom: 0; }
.side-panel .muted { color: var(--muted); }
.side-panel .btn {
  width: 100%; margin-top: 12px; border: 0; border-radius: 10px; padding: 10px 12px;
  background: #111827; color: #fff; cursor: pointer; font-weight: 600;
}

/* login */
.login-wrap {
  min-height: 100vh; display: grid; place-items: center; padding: 24px;
  background:
    radial-gradient(900px 400px at 20% -10%, #dbeafe 0%, transparent 60%),
    radial-gradient(700px 360px at 100% 0%, #fef3c7 0%, transparent 55%),
    var(--bg);
}
.login-card {
  width: min(400px, 100%); background: var(--card); border: 1px solid var(--border);
  border-radius: 20px; box-shadow: var(--shadow); padding: 28px 24px 22px;
}
.login-card .logo {
  width: 48px; height: 48px; border-radius: 14px; margin: 0 auto 14px;
  background: linear-gradient(145deg, #0f172a, #334155); color: #fff;
  display: grid; place-items: center; font-weight: 800;
}
.login-card h1 { margin: 0 0 20px; text-align: center; font-size: 20px; letter-spacing: -.02em; }
.login-card .sub { text-align: center; color: var(--muted); font-size: 13px; margin: 6px 0 20px; }
.field { margin-bottom: 12px; }
.field label { display: block; font-size: 12px; font-weight: 600; margin-bottom: 6px; color: #374151; }
.field input {
  width: 100%; border: 1px solid var(--border); border-radius: 12px; padding: 11px 12px;
  background: #fff; outline: none;
}
.field input:focus { border-color: #93c5fd; box-shadow: 0 0 0 3px rgba(37,99,235,.15); }
.err { color: var(--danger); font-size: 13px; margin: 0 0 10px; min-height: 18px; }
.primary {
  width: 100%; border: 0; border-radius: 12px; padding: 12px; background: var(--accent);
  color: #fff; font-weight: 650; cursor: pointer;
}
.primary:disabled { opacity: .65; cursor: wait; }
.hint { margin-top: 14px; text-align: center; font-size: 12px; color: var(--muted); }

@media (max-width: 640px) {
  .search { display: none; }
  .main { padding-top: 18px; }
}