:root {
  --green: #0e7a3d;
  --green-dark: #0a5c2e;
  --ink: #1d2421;
  --muted: #5b6b62;
  --bg: #f7faf7;
  --card: #ffffff;
  --line: #dde7df;
}

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

body {
  font-family: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
}

.container { max-width: 760px; margin: 0 auto; padding: 0 1.25rem; }

.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0;
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: .8rem; padding-bottom: .8rem;
}
.logo { font-size: 1.15rem; font-weight: 400; letter-spacing: .02em; }
.logo b { color: var(--green); font-weight: 700; }
nav a {
  margin-left: 1.2rem; color: var(--muted); text-decoration: none; font-size: .95rem;
}
nav a:hover { color: var(--green); }

.countdown {
  color: var(--green-dark); font-size: .85rem; font-weight: 600;
  font-variant-numeric: tabular-nums;
  max-width: 21rem; text-align: right; line-height: 1.35;
}
@media (max-width: 560px) {
  .site-header .container { flex-wrap: wrap; }
  .countdown { order: 3; width: 100%; }
}

.hero {
  background: linear-gradient(160deg, var(--green) 0%, var(--green-dark) 100%);
  color: #fff;
  padding: 4rem 0 3.5rem;
}
.hero a { color: #d8f3e2; }
.kicker {
  text-transform: uppercase; letter-spacing: .12em; font-size: .78rem;
  opacity: .85; margin-bottom: .8rem;
}
.diary-post .kicker { color: var(--green); opacity: 1; }
.hero h1 { font-size: 2.1rem; line-height: 1.2; margin-bottom: 1rem; }
.lede { font-size: 1.1rem; max-width: 40rem; }

main { padding: 2.5rem 0 3.5rem; }
main section { margin-bottom: 2.8rem; }
h1 { font-size: 1.9rem; margin-bottom: 1rem; }
h2 { font-size: 1.4rem; margin-bottom: .8rem; color: var(--green-dark); }
#proyecto h3 {
  font-size: 1.08rem; color: var(--green-dark);
  margin: 1.6rem 0 .6rem;
}
p { margin-bottom: 1rem; }
a { color: var(--green); }

.team-grid {
  display: grid; gap: 1.2rem;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}
.member-card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 10px; padding: 1.4rem;
}
.member-avatar {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--green); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1.2rem; margin-bottom: .9rem;
}
.member-card h3 { font-size: 1.1rem; margin-bottom: .15rem; }
.member-role { color: var(--muted); font-size: .88rem; margin-bottom: .8rem; }
.member-bio { font-size: .95rem; }
.member-links { list-style: none; margin-top: .9rem; }
.member-links li { display: inline-block; margin-right: .9rem; font-size: .9rem; }

.diary-entry {
  border-left: 3px solid var(--green);
  padding: .4rem 0 .4rem 1.2rem; margin-bottom: 2rem;
}
.diary-entry h2 { margin-bottom: .4rem; }
.diary-entry h2 a { color: var(--ink); text-decoration: none; }
.diary-entry h2 a:hover { color: var(--green); }
.diary-post ul { margin: 0 0 1rem 1.4rem; }
.diary-post li { margin-bottom: .6rem; }
.diary-post figure { margin: 1.6rem 0; }
.diary-post figure img {
  width: 100%; display: block;
  border: 1px solid var(--line); border-radius: 8px;
}
.diary-post figcaption {
  font-size: .85rem; color: var(--muted); margin-top: .5rem;
}
.diary-post figure iframe {
  width: 100%; display: block; aspect-ratio: 16/9;
  border: 1px solid var(--line); border-radius: 8px;
}

.site-footer {
  border-top: 1px solid var(--line); padding: 1.5rem 0;
  color: var(--muted); font-size: .9rem;
}