/* global.css - shared across all pages (menu / maileroo / upload) */
/* Updated: layout column + site-main + footer styles */

:root {
  --bg: #f5f5f5;
  --card-bg: #fff;
  --text-muted: #555;
  --accent: #007bff;
  --accent-600: #0062d6;
  --radius: 12px;
  --max-width: 420px;
  --shadow: 0 6px 22px rgba(10,20,40,0.06);
  --font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans Thai", Arial, sans-serif;
  --input-border: #e6e9ef;
  --danger: #e0463a;
}

/* ========== base ========== */
* { box-sizing: border-box; }
html, body {
  height: 100%;
  margin: 0;
  font-family: var(--font-family);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: #071235;
}

/* Make body a column layout so footer can sit at the bottom */
body {
  display: flex;
  flex-direction: column;    /* << important */
  min-height: 100vh;
  padding: 20px;
}

/* Main content area that grows to push footer down */
.site-main {
  flex: 1 1 auto;            /* allow grow/shrink, fills available height */
  display: flex;
  align-items: center;       /* center vertically */
  justify-content: center;   /* center horizontally */
  padding: 20px;
  box-sizing: border-box;
}

/* Card (used by index, maileroo, upload) */
.card {
  background: var(--card-bg);
  padding: 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  max-width: var(--max-width);
  width: 100%;
  text-align: center;
}

/* Optionally allow wider form card: add .form-card */
.card.form-card { max-width: 720px; text-align: left; padding: 28px; }

/* Logo */
.logo { display:block; margin:0 auto 12px; width:84px; height:auto; object-fit:contain; }

/* Headings & text */
h1 { margin-top:0; margin-bottom:8px; font-size:1.5rem; }
p { margin-top:0; margin-bottom:16px; color:var(--text-muted); }

/* Buttons (link styled) */
a.button {
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:10px 14px; margin:8px 0; border-radius:8px; text-decoration:none;
  font-weight:600; border:1px solid var(--accent); transition:transform .12s, box-shadow .12s;
  background:#fff; color:var(--accent);
}
a.button.primary { background:linear-gradient(180deg,var(--accent),var(--accent-600)); color:#fff; border-color:transparent; }
a.button.secondary { background:#fff; color:var(--accent); }

/* hover */
a.button:hover, a.button:focus { transform:translateY(-3px); box-shadow:0 10px 30px rgba(2,6,23,0.06); }
a.button:focus { outline:3px solid rgba(0,123,255,0.12); outline-offset:2px; }

/* Minimal form styling (applies inside .card) */
.card form { margin-top: 6px; text-align: left; }
.card label { display:block; margin:10px 0 6px; font-weight:600; color:#071235; }
.card input[type="text"],
.card input[type="email"],
.card textarea,
.card input[type="file"],
.card select {
  width:100%; padding:10px 12px; border-radius:8px; border:1px solid var(--input-border);
  background:#fff; font-size:1rem; color:#071235; transition:box-shadow .12s, border-color .12s, transform .12s;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.6);
}
.card textarea { min-height:120px; resize:vertical; line-height:1.4; }
.card input:focus, .card textarea:focus, .card select:focus {
  outline:none; border-color: rgba(0,123,255,0.9); box-shadow: 0 8px 20px rgba(11,120,255,0.08); transform:translateY(-1px);
}

/* form button */
.card button, .card .btn {
  margin-top:12px; padding:10px 14px; border-radius:8px; border:0; cursor:pointer; font-weight:700;
  background: linear-gradient(180deg,var(--accent),var(--accent-600)); color:#fff;
}
.card a.back, .card .back { display:inline-block; margin-bottom:12px; text-decoration:none; color:var(--accent); font-weight:600; }

/* small adjustments for upload preview */
.wrap { max-width: 720px; width: 100%; margin: 0 auto; }
.wrap img.preview { max-width: 300px; margin-top:12px; border-radius:6px; display:block; }

/* ========== Footer styles (moved into global.css) ========== */
.site-footer {
  margin-top: 28px;
  padding: 18px 16px;
  background: transparent;
  color: #263044;
  font-family: inherit;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.site-footer .inner {
  max-width: 1000px;
  width: 100%;
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}
.site-footer .gh-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--accent, #007bff);
  background: rgba(11,120,255,0.06);
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(11,120,255,0.08);
  transition: transform .12s ease, box-shadow .12s ease;
  font-weight: 600;
}
.site-footer .gh-link:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(11,120,255,0.08); }
.site-footer svg { width: 18px; height: 18px; display: block; flex: 0 0 18px; }
.site-footer .meta { color: #6b7280; font-weight: 500; font-size: 0.88rem; }
@media (max-width: 520px) {
  .site-footer { padding: 14px 12px; }
  .site-footer .inner { gap: 8px; }
}

/* responsive tweaks */
@media (min-width: 700px) {
  .card { max-width: 520px; }
}
@media (max-width: 520px) {
  .card { padding:18px; }
  .logo { width:64px; }
}

/* Preview container (ถ้ายังไม่มี) */
#preview {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-align: center;
}

/* ---------- Recommended: responsive max size ---------- */
/* Use width:100% so image can shrink on narrow screens, but cap by max-width and max-height */
#preview img.preview {
  width: 100%;               /* allow shrink on small screens */
  max-width: 720px;         /* absolute cap on large screens (change as needed) */
  max-height: 60vh;        /* never taller than 60% of viewport height */
  height: auto;            /* preserve aspect ratio */
  object-fit: contain;     /* ensure contained inside box when constrained by height */
  border-radius: 6px;
  display: block;
  box-shadow: 0 6px 18px rgba(2,6,23,0.06);
}

/* Smaller cap on phones */
@media (max-width: 520px) {
  #preview img.preview {
    max-width: 90vw;       /* at most 90% of viewport width on small screens */
    max-height: 50vh;
  }
}

/* ---------- Optional: small thumbnail style ---------- */
/* Use this class if you want a smaller preview (e.g. in lists) */
#preview img.preview.small {
  width: auto;
  max-width: 320px;
  max-height: 240px;
  object-fit: cover; /* crops to fill; use contain if you want full image shown */
}