/* สมุด · โทนขาวมาตรฐาน: พื้นขาว ตัวหนังสือเข้ม เส้นบาง สีเน้นสีเดียว */
:root {
  --bg: #ffffff;
  --surface: #f6f7f9;
  --line: #e4e7ec;
  --ink: #14171c;
  --text: #14171c;
  --muted: #5d6573;
  --accent: #1f4bd8;
  --accent-ink: #ffffff;
  /* ชื่อเดิมที่หน้าอื่นยังใช้ (สถิติ ฟอร์มสมาชิก) */
  --glass: var(--surface);
  --glass-line: var(--line);
  --gold: var(--accent);
  --display: "Kanit", "Anuphan", system-ui, sans-serif;
  --body: "Anuphan", "Noto Sans Thai", system-ui, sans-serif;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { background: var(--bg); scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background: var(--bg);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.65;
}
a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 8px; }

/* ---------- แถบบน ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1120px;
  margin: 0 auto;
  padding: 14px 24px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-family: var(--display); font-weight: 600; font-size: 1.35rem; }
.brand img { display: block; }
.topbar nav { display: flex; align-items: center; gap: 20px; font-size: .95rem; }
.topbar nav a { color: var(--muted); text-decoration: none; }
.topbar nav a:hover { color: var(--ink); }
.topbar nav a.nav-btn { color: var(--ink); padding: 7px 16px; border: 1px solid var(--line); border-radius: 999px; }
.topbar nav a.nav-btn:hover { border-color: var(--ink); }

main { max-width: 1120px; margin: 0 auto; padding: 0 24px; min-height: 60vh; }

/* ---------- หัวหน้าแรก ---------- */
.hero { padding: 72px 0 48px; border-bottom: 1px solid var(--line); }
.hero h1 {
  margin: 0;
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  line-height: 1.1;
  letter-spacing: -.01em;
  max-width: 14em;
  text-wrap: balance;
}
.lede { max-width: 34em; margin: 16px 0 0; font-size: clamp(1.05rem, 1.6vw, 1.2rem); color: var(--muted); text-wrap: pretty; }

/* ---------- รายการผลงาน ---------- */
.works { padding: 40px 0 96px; }
.works-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 24px; }
.works-head h2 { margin: 0; font-family: var(--display); font-weight: 600; font-size: 1.35rem; }
.works-head span { color: var(--muted); font-size: .95rem; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); gap: 28px; }
.card { display: flex; flex-direction: column; text-decoration: none; color: inherit; }
.art { display: block; aspect-ratio: 4 / 3; overflow: hidden; border-radius: 16px; background: var(--surface); border: 1px solid var(--line); }
.art img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .4s ease; }
.card:hover .art img { transform: scale(1.03); }
.emoji { display: grid; place-items: center; height: 100%; font-size: 4rem; }
.body { display: flex; flex-direction: column; gap: 6px; padding: 16px 2px 0; }
.meta { display: flex; align-items: center; gap: 8px; font-size: .85rem; color: var(--muted); }
.meta .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--dot, var(--accent)); }
.title { font-family: var(--display); font-weight: 600; font-size: 1.35rem; line-height: 1.3; }
.card:hover .title { color: var(--accent); }
.desc { color: var(--muted); font-size: .97rem; }
.play { margin-top: 6px; font-weight: 600; color: var(--accent); }

footer { border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
.footer-in { display: flex; justify-content: space-between; gap: 16px; max-width: 1120px; margin: 0 auto; padding: 24px 24px 40px; }

@media (max-width: 560px) {
  .topbar-in, main, .footer-in { padding-left: 16px; padding-right: 16px; }
  .hero { padding: 44px 0 32px; }
  .works { padding-top: 28px; }
  .footer-in { flex-direction: column; gap: 4px; }
}

/* ---------- ฟอร์มสมาชิก / บัญชี ---------- */
.panel { max-width: 440px; margin: 48px auto 80px; padding: 32px; border-radius: 16px; background: var(--bg); border: 1px solid var(--line); }
.panel h1 { margin: 0 0 20px; font-family: var(--display); font-weight: 600; font-size: 1.8rem; }
.muted { color: var(--muted); }
.muted a { color: var(--accent); }
form label { display: block; margin-bottom: 16px; font-weight: 500; }
input, textarea {
  display: block; width: 100%; margin-top: 6px; padding: 11px 14px; font: inherit;
  color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 10px;
}
input:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: transparent; }
.btn {
  display: inline-block; padding: 11px 22px; border: 0; border-radius: 10px; cursor: pointer;
  font-family: var(--display); font-weight: 600; font-size: 1rem; color: var(--accent-ink); background: var(--accent);
}
.btn:hover { filter: brightness(1.08); }
form .btn { width: 100%; margin-top: 4px; }
.btn.google { width: 100%; margin-bottom: 18px; text-align: center; text-decoration: none; color: var(--ink); background: var(--bg); border: 1px solid var(--line); }
.btn.google:hover { filter: none; border-color: var(--ink); }
.oauth-divider { display: flex; align-items: center; gap: 12px; margin: 0 0 18px; color: var(--muted); font-size: .9rem; }
.oauth-divider::before, .oauth-divider::after { content: ""; flex: 1; height: 1px; background: var(--line); }
button.link { background: none; border: 0; padding: 0; font: inherit; line-height: inherit; color: var(--muted); cursor: pointer; }
button.link:hover { color: var(--ink); }
form.inline { display: inline-flex; margin: 0; }
.error { color: #b42318; background: #fef3f2; border: 1px solid #fecdca; padding: 10px 14px; border-radius: 10px; }
.panel dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 20px; }
.panel dt { color: var(--muted); }
.panel dd { margin: 0; }