:root {
  --ink: #14241f;
  --muted: #5a6f68;
  --accent: #1f7a5c;
  --panel: #ffffff;
  --line: #d5e0db;
  --display: "Syne", "DM Sans", sans-serif;
  --font: "DM Sans", system-ui, sans-serif;
  --warn: #9a3412;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(900px 420px at 100% 0%, rgba(31,122,92,.14), transparent 60%),
    linear-gradient(165deg, #eef5f1, #f7f3ee 55%, #eaf2ee);
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
.site-header, .site-footer, main {
  width: min(960px, calc(100% - 2rem));
  margin-inline: auto;
}
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.4rem 0;
}
.logo {
  font-family: var(--display);
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
}
.logo-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  object-fit: cover;
}
nav { display: flex; gap: 1rem; font-weight: 600; color: var(--muted); }
nav a:hover { color: var(--accent); }

.hero { padding: 2rem 0 1rem; }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: .75rem;
  font-weight: 700;
  color: var(--accent);
  margin: 0 0 .55rem;
}
.hero h1 {
  font-family: var(--display);
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  letter-spacing: -.03em;
  margin: 0 0 .7rem;
}
.lead { color: var(--muted); max-width: 40rem; line-height: 1.55; margin: 0; }

.files { padding: 1rem 0 3rem; display: grid; gap: 1rem; }
.file-card, .notice {
  background: var(--panel);
  border: 1px solid rgba(20,36,31,.08);
  border-radius: 18px;
  padding: 1.35rem 1.4rem;
  box-shadow: 0 14px 40px rgba(11,31,28,.08);
}
.file-card {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}
.file-card h1, .file-card h2 {
  font-family: var(--display);
  margin: 0 0 .35rem;
}
.meta { color: var(--muted); font-size: .9rem; margin: 0 0 .7rem; }
.file-actions { display: flex; gap: .5rem; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  padding: .72rem 1.1rem;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
}
.btn:hover { background: #17634a; }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}
.btn[aria-disabled="true"], .btn.disabled {
  opacity: .55;
  pointer-events: none;
}
.notice {
  border-left: 4px solid var(--accent);
}
.notice strong { color: var(--warn); }
.file-list {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: grid;
  gap: .55rem;
}
.file-list a {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: .85rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #f7faf8;
  font-weight: 600;
}
.file-list a:hover { border-color: var(--accent); }
.site-footer {
  display: flex;
  justify-content: space-between;
  padding: 1.5rem 0 2.5rem;
  color: var(--muted);
  font-size: .9rem;
  border-top: 1px solid rgba(20,36,31,.08);
}