/* Copyright 2024 Graz University of Technology -- GPL-3.0 */
/* Landing page: application selector for StructOptTools. */

:root {
  --bg: #f4f2ee;
  --panel: #ffffff;
  --ink: #222;
  --muted: #6b6b6b;
  --accent: #8a6d3b;
  --accent-dark: #6d5430;
  --border: #ddd8cf;
}

* { box-sizing: border-box; }

body.landing {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.5;
}

header, footer {
  max-width: 900px;
  margin: 0 auto;
  padding: 1.5rem 1.5rem 0;
}

header { padding-top: 3rem; }
header h1 {
  font-size: 2rem;
  margin: 0 0 .4rem;
  letter-spacing: -.01em;
}
.subtitle { color: var(--muted); margin: 0; max-width: 60ch; }

main {
  max-width: 900px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

.apps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.app-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.1rem;
  height: 100%;
  padding: 1.3rem 1.4rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  text-decoration: none;
  color: inherit;
  transition: border-color .15s, box-shadow .15s, transform .15s;
}
.app-card:hover {
  border-color: var(--accent);
  box-shadow: 0 6px 22px rgba(109, 84, 48, .12);
  transform: translateY(-2px);
}

.app-icon {
  flex: none;
  display: grid;
  place-items: center;
  width: 72px;
  height: 72px;
  border-radius: 10px;
  background: #faf7f1;
  border: 1px solid var(--border);
}
.app-icon svg { width: 56px; height: 56px; }

.app-text h2 {
  font-size: 1.15rem;
  margin: 0 0 .3rem;
  color: var(--accent-dark);
}
.app-text p { margin: 0; color: var(--muted); font-size: .9rem; }

.tags {
  margin-top: .6rem !important;
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
}
.tags span {
  font-size: .72rem;
  color: var(--accent-dark);
  background: #f6f1e7;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: .1rem .55rem;
}

.app-go {
  font-size: 1.5rem;
  color: var(--accent);
  transition: transform .15s;
}
.app-card:hover .app-go { transform: translateX(4px); }

footer {
  color: var(--muted);
  font-size: .82rem;
  padding-bottom: 2rem;
}
footer a { color: var(--accent-dark); }
footer .note { margin-top: .2rem; }

@media (max-width: 720px) {
  .apps { grid-template-columns: 1fr; }
  .app-card { grid-template-columns: auto 1fr; }
  .app-go { display: none; }
  header { padding-top: 2rem; }
  header h1 { font-size: 1.7rem; }
}