/* ComTrue Inc. — corporate site
   Plain CSS, no build step. Edit values in :root to re-theme. */

:root {
  /* 固定淺色。加這行，OS 開深色模式時輸入框等原生元件也不會變深 */
  color-scheme: light;

  --bg: #ffffff;
  --bg-alt: #f5f7fa;
  --bg-sunk: #eef1f6;
  --fg: #1a1f2b;
  --fg-muted: #5b6675;
  --line: #dde3ec;
  --accent: #0b5fd0;
  --accent-fg: #ffffff;
  --accent-soft: #e7f0ff;
  --radius: 10px;
  --wrap: 1100px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC",
          "Microsoft JhengHei", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 24px;
}

h1, h2, h3 { line-height: 1.25; letter-spacing: -0.01em; margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 5vw, 2.9rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2rem); }
h3 { font-size: 1.15rem; }
p  { margin: 0 0 1em; }
a  { color: var(--accent); }

.muted { color: var(--fg-muted); }
.lead  { font-size: 1.125rem; color: var(--fg-muted); max-width: 62ch; }

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 66px;
}

.brand {
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  color: var(--fg);
  text-decoration: none;
  white-space: nowrap;
}
.brand span { color: var(--accent); }
.brand { display: flex; align-items: center; gap: 11px; }
.brand img { height: 30px; width: auto; display: block; }

/* 產品/下載清單 */
.filelist { list-style: none; padding: 0; margin: 0 0 8px; }
.filelist li { border-bottom: 1px solid var(--line); }
.filelist li:last-child { border-bottom: 0; }
.filelist a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 2px;
  text-decoration: none;
  color: var(--fg);
}
.filelist a:hover { color: var(--accent); }
.filelist .tag {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--fg-muted);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1px 6px;
  flex: none;
}

/* 檔案已列出但尚未開放下載 */
.filelist .pending {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 2px;
  color: var(--fg-muted);
}
.filelist .pending .name { flex: 1 1 auto; }
.filelist .pending .state {
  font-size: .78rem;
  white-space: nowrap;
  color: var(--fg-muted);
  opacity: .85;
  flex: none;
}

.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a {
  color: var(--fg-muted);
  text-decoration: none;
  font-size: .95rem;
  padding: 8px 12px;
  border-radius: 7px;
}
.nav a:hover { color: var(--fg); background: var(--bg-alt); }
.nav a[aria-current="page"] { color: var(--accent); font-weight: 600; }

/* ---------- sections ---------- */

section { padding: 72px 0; }
section.alt { background: var(--bg-alt); border-block: 1px solid var(--line); }

.hero { padding: 96px 0 84px; }
.hero h1 { max-width: 18ch; }
.eyebrow {
  display: inline-block;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 5px 11px;
  border-radius: 999px;
  margin-bottom: 18px;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-fg);
  text-decoration: none;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 1rem;
  font-family: inherit;
}
.btn:hover { filter: brightness(1.08); }
.btn.ghost {
  background: transparent;
  color: var(--fg);
  border-color: var(--line);
}
.btn.ghost:hover { background: var(--bg-alt); filter: none; }
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }

/* ---------- grid / cards ---------- */

.grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
}
section.alt .card { background: var(--bg); }
.card h3 { margin-bottom: .35em; }
.card p:last-child { margin-bottom: 0; }

.card .part {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: .8rem;
  color: var(--accent);
  letter-spacing: .05em;
}

.stat { font-size: 2rem; font-weight: 700; letter-spacing: -0.02em; }

/* ---------- table ---------- */

.table-scroll { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: .93rem;
  min-width: 560px;
}
th, td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
th { font-weight: 600; background: var(--bg-sunk); white-space: nowrap; }

/* ---------- form ---------- */

.form { max-width: 560px; }
.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-size: .9rem;
  font-weight: 600;
  margin-bottom: 6px;
}
.field input,
.field textarea,
.field select {
  width: 100%;
  font: inherit;
  font-size: .97rem;
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 11px 13px;
}
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  border-color: var(--accent);
}
.field textarea { min-height: 150px; resize: vertical; }
.hp { position: absolute; left: -9999px; }

.form-note {
  font-size: .85rem;
  color: var(--fg-muted);
  margin-top: 14px;
}

#form-status {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 8px;
  font-size: .92rem;
  display: none;
}
#form-status.show { display: block; }
#form-status.ok   { background: var(--accent-soft); color: var(--accent); }
#form-status.err  { background: #fdecec; color: #b42318; }

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg-alt);
  padding: 40px 0;
  font-size: .9rem;
  color: var(--fg-muted);
}
.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.site-footer a { color: var(--fg-muted); }

.dl { margin: 0; }
.dl dt { font-weight: 600; color: var(--fg); margin-top: 14px; }
.dl dt:first-child { margin-top: 0; }
.dl dd { margin: 0 0 0 0; color: var(--fg-muted); }