/* freesabai.com: warm paper, a green leaf. Thai first; system fonts only (nothing is fetched from elsewhere). */

:root {
  --bg: #f5f1e8;
  --paper: #fffdf8;
  --ink: #2b2a26;
  --soft: #6b675e;
  --line: #e2dccd;
  --accent: #2e9b62;
  --accent-dark: #237a4d;
  --accent-soft: #e3f2e9;
  --warn-soft: #fdf3dc;
  --shadow: 0 1px 2px rgb(60 50 30 / 6%), 0 8px 24px rgb(60 50 30 / 8%);
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1b1d1a;
    --paper: #24271f;
    --ink: #ece8dc;
    --soft: #aaa596;
    --line: #3a3d33;
    --accent: #4cbf84;
    --accent-dark: #6fd39f;
    --accent-soft: #23382b;
    --warn-soft: #3a3322;
    --shadow: 0 1px 2px rgb(0 0 0 / 30%), 0 8px 24px rgb(0 0 0 / 35%);
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.75 "Leelawadee UI", "Segoe UI", "Noto Sans Thai", "Sarabun", Tahoma, system-ui, sans-serif;
  overflow-wrap: anywhere;
}

a { color: var(--accent-dark); text-underline-offset: .18em; }
a:hover { color: var(--accent); }
a:focus-visible, .btn:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

img { max-width: 100%; height: auto; }

h1, h2, h3 { line-height: 1.35; margin: 0 0 .5em; }
h1 { font-size: clamp(1.75rem, 1.2rem + 2.4vw, 2.6rem); }
h2 { font-size: 1.45rem; margin-top: 2.2rem; }
h3 { font-size: 1.12rem; margin-top: 1.6rem; }
p, ul, ol { margin: 0 0 1em; }
li + li { margin-top: .3em; }

.wrap { width: min(100% - 32px, 1060px); margin-inline: auto; }
.narrow { width: min(100% - 32px, 760px); margin-inline: auto; }

.skip { position: absolute; left: -999px; top: 8px; background: var(--paper); padding: 6px 12px; z-index: 2; }
.skip:focus { left: 8px; }

/* ---- header and footer */

.top { background: var(--paper); border-bottom: 1px solid var(--line); }
.top-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 24px; padding: 12px 0; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.2rem; color: var(--ink); text-decoration: none; }
.brand img { border-radius: 7px; }
.top nav { display: flex; flex-wrap: wrap; gap: 4px 18px; font-size: .97rem; }
.top nav a { color: var(--soft); text-decoration: none; padding: 4px 0; }
.top nav a:hover, .top nav a[aria-current="page"] { color: var(--ink); }
.top nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--accent); }
.top nav .lang { color: var(--accent-dark); }
@media (max-width: 600px) {
  .top-row { padding: 8px 0; }
  .top nav { gap: 0 14px; font-size: .9rem; }
}

.bottom { margin-top: 4rem; padding: 28px 0 36px; border-top: 1px solid var(--line); color: var(--soft); font-size: .93rem; }
.bottom p { margin: 0 0 .4em; }

/* ---- page parts */

.hero { padding: 48px 0 16px; }
.hero p.lead { font-size: 1.15rem; color: var(--soft); max-width: 40em; }

/* margin-block only: these sit on .wrap / .narrow, which centre them with margin-inline */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); gap: 24px; margin-block: 24px; }
.card {
  display: flex; flex-direction: column; gap: 12px;
  background: var(--paper); border: 1px solid var(--line); border-radius: 16px; padding: 22px; box-shadow: var(--shadow);
}
.card h2 { margin: 0; font-size: 1.35rem; }
.card .shot { margin: 4px 0; }
.card p { margin: 0; }
.card .actions { margin-top: auto; padding-top: 8px; }

.shot { display: block; border-radius: 12px; border: 1px solid var(--line); box-shadow: var(--shadow); background: var(--paper); }
figure { margin: 24px 0; }
figcaption { color: var(--soft); font-size: .92rem; margin-top: 8px; }
.gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr)); gap: 20px; align-items: start; }

/* white on #237a4d is 5.3:1, dark text on the dark theme's green 7.8:1 (WCAG AA needs 4.5:1) */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: #237a4d; color: #fff; font-weight: 600; text-decoration: none;
  padding: 10px 20px; border-radius: 10px; border: 0;
}
.btn:hover { background: #1b5f3c; color: #fff; }
@media (prefers-color-scheme: dark) {
  .btn { background: var(--accent); color: #10170f; }
  .btn:hover { background: var(--accent-dark); color: #10170f; }
}
.btn.quiet { background: transparent; color: var(--accent-dark); border: 1px solid var(--line); }
.btn.quiet:hover { background: var(--accent-soft); color: var(--accent-dark); }
.tag { display: inline-block; font-size: .8rem; padding: 2px 10px; border-radius: 99px; background: var(--accent-soft); color: var(--accent-dark); font-weight: 600; }

.download {
  background: var(--paper); border: 1px solid var(--line); border-radius: 16px; padding: 22px; box-shadow: var(--shadow); margin-block: 28px;
}
.download h2 { margin-top: 0; }
.download dl { display: grid; grid-template-columns: max-content 1fr; gap: 4px 16px; margin: 16px 0 0; font-size: .95rem; }
.download dt { color: var(--soft); }
.download dd { margin: 0; }
.mono { font-family: Consolas, "Cascadia Mono", monospace; font-size: .85em; word-break: break-all; }

.note { background: var(--warn-soft); border-radius: 12px; padding: 14px 18px; margin: 20px 0; }
.note > :last-child { margin-bottom: 0; }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr)); gap: 16px; padding: 0; list-style: none; }
.features li { background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; margin: 0; }
.features strong { display: block; }

.steps { padding-left: 1.3em; }
.steps li { padding-left: .2em; }

table { border-collapse: collapse; width: 100%; margin: 12px 0 20px; font-size: .95rem; }
th, td { text-align: left; vertical-align: top; padding: 8px 10px; border-bottom: 1px solid var(--line); }
th { color: var(--soft); font-weight: 600; }
.scroll { overflow-x: auto; }

.policy h2 { font-size: 1.25rem; }
.policy .updated { color: var(--soft); }

kbd { font-family: inherit; font-size: .9em; border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 5px; padding: 0 5px; background: var(--paper); }

mark { background: #ffe58a; color: #3a2a00; padding: 0 4px; border-radius: 3px; }