/* fixx-ai.com · มือถือมาก่อน · ไม่มีทรัพยากรจากโดเมนอื่น */
@font-face {
  font-family: "IBM Plex Sans Thai";
  src: url("/assets/fonts/IBMPlexSansThai-Regular.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "IBM Plex Sans Thai";
  src: url("/assets/fonts/IBMPlexSansThai-SemiBold.woff2") format("woff2");
  font-weight: 600 700; font-style: normal; font-display: swap;
}

:root {
  --bg: #ffffff;
  --bg-soft: #f3f7f6;
  --card: #ffffff;
  --text: #17201d;
  --muted: #4a5753;
  --line: #d5dedb;
  --accent: #0f766e;          /* 5.4:1 บนพื้นขาว */
  --accent-hover: #0b5c56;
  --accent-soft: #e2f3f0;
  --on-accent: #ffffff;
  --warn: #8a4b00;
  --warn-soft: #fff4e0;
  --focus: #1d4ed8;
  --todo-bg: #fff8c5;
  --todo-line: #b08800;
  --todo-text: #3d2e00;
  --smart: #0b5394;
  --radius: 12px;
  --maxw: 920px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111715;
    --bg-soft: #18201d;
    --card: #1b2421;
    --text: #e8eeeb;
    --muted: #b0bcb7;
    --line: #33403b;
    --accent: #5fd0bd;
    --accent-hover: #8ce0d1;
    --accent-soft: #17332d;
    --on-accent: #062621;
    --warn: #f2b45a;
    --warn-soft: #33270f;
    --focus: #93b4ff;
    --todo-bg: #3a3000;
    --todo-line: #e3c34a;
    --todo-text: #fff3b0;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "IBM Plex Sans Thai", "Leelawadee UI", "Noto Sans Thai", Tahoma, sans-serif;
  font-size: 1.125rem;   /* 18px */
  line-height: 1.75;
  overflow-wrap: break-word;
}
img, svg, picture { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-underline-offset: .18em; }
a:hover { color: var(--accent-hover); }
:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
  border-radius: 4px;
}
h1, h2, h3, h4 { line-height: 1.35; margin: 1.6em 0 .5em; font-weight: 600; }
h1 { font-size: 1.85rem; margin-top: .4em; }
h2 { font-size: 1.45rem; }
h3 { font-size: 1.22rem; }
h4 { font-size: 1.1rem; }
p, ul, ol { margin: 0 0 1em; }
ul, ol { padding-left: 1.4em; }
li { margin: .35em 0; }
code, pre, kbd {
  font-family: "Cascadia Mono", Consolas, "Courier New", monospace;
  font-size: .88em;
}
code { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 5px; padding: .05em .35em; overflow-wrap: anywhere; }
pre {
  background: var(--bg-soft); border: 1px solid var(--line); border-radius: 8px;
  padding: .8em 1em; overflow-x: auto; white-space: pre; margin: 0 0 .6em;
}
pre code { background: none; border: 0; padding: 0; }
kbd { border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 4px; padding: 0 .35em; }
del { color: var(--muted); }
hr { border: 0; border-top: 1px solid var(--line); margin: 2em 0; }
small, .small { font-size: .9rem; color: var(--muted); }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent); color: var(--on-accent); padding: .6em 1em; z-index: 10;
}
.skip:focus { left: 8px; top: 8px; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 16px; }

/* ส่วนหัว */
.site-header { border-bottom: 1px solid var(--line); background: var(--bg); }
.site-header .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 16px; padding-top: 8px; padding-bottom: 6px; }
.brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 1.15rem; color: var(--text); text-decoration: none; min-height: 44px; }
.brand img { width: 34px; height: 34px; }
.site-nav { width: 100%; }
.site-nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 2px 4px; }
.site-nav li { margin: 0; }
.site-nav a {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0 10px;
  border-radius: 8px; color: var(--text); text-decoration: none; font-size: 1rem;
}
.site-nav a:hover { background: var(--accent-soft); color: var(--text); }
.site-nav a[aria-current="page"] { background: var(--accent-soft); font-weight: 600; box-shadow: inset 0 -3px 0 var(--accent); }

main { display: block; padding: 8px 0 48px; }

/* ปุ่ม */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4em;
  min-height: 52px; padding: .55em 1.3em; border-radius: 10px;
  background: var(--accent); color: var(--on-accent); border: 2px solid var(--accent);
  font: inherit; font-weight: 600; font-size: 1.1rem; line-height: 1.4; text-decoration: none; text-align: center;
  cursor: pointer;
}
.btn:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: var(--on-accent); }
.btn-secondary { background: transparent; color: var(--accent); }
.btn-secondary:hover { background: var(--accent-soft); color: var(--accent-hover); }
.btn-big { min-height: 60px; font-size: 1.22rem; padding: .6em 1.6em; }
a.btn:not([href]), .btn[aria-disabled="true"] { opacity: .6; cursor: not-allowed; }
a.btn:not([href]):hover { background: var(--accent); border-color: var(--accent); }
a.btn-secondary:not([href]):hover { background: transparent; }
.actions { display: flex; flex-direction: column; align-items: stretch; gap: 12px; margin: 1.2em 0; }
.actions .todo { align-self: flex-start; }

/* ช่องที่ยังรอข้อมูล — ต้องเห็นชัด ห้ามเผยแพร่จนกว่าจะเติม */
.todo {
  display: inline; background: var(--todo-bg); color: var(--todo-text);
  border: 2px dashed var(--todo-line); border-radius: 4px; padding: 0 .3em;
  font-weight: 600; font-size: .95em; -webkit-box-decoration-break: clone; box-decoration-break: clone;
}
.todo-box {
  background: var(--todo-bg); color: var(--todo-text); border: 2px dashed var(--todo-line);
  border-radius: var(--radius); padding: 1em 1.2em; margin: 1.2em 0;
}
.todo-box > :last-child { margin-bottom: 0; }

/* hero */
.hero { padding: 1em 0 .5em; }
.hero h1 { font-size: 2rem; margin-top: .3em; }
.lead { font-size: 1.2rem; }
.meta-line { color: var(--muted); font-size: 1rem; }

/* การ์ดและกล่อง */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1em 1.2em; margin: 1.2em 0; }
.card > :last-child { margin-bottom: 0; }
.card > h2:first-child, .card > h3:first-child, .card > h4:first-child { margin-top: 0; }
.card-accent { border: 2px solid var(--accent); background: var(--accent-soft); }
.note { border-left: 5px solid var(--warn); background: var(--warn-soft); border-radius: 8px; padding: .9em 1.1em; margin: 1.2em 0; }
.note > :last-child { margin-bottom: 0; }

.feature { margin: 2em 0; }
.feature h3 { margin-top: 0; }

.price { font-size: 2.2rem; font-weight: 600; line-height: 1.2; margin: .2em 0 .4em; }
.price del { font-size: 1.3rem; font-weight: 400; margin-left: .3em; }
.checklist { list-style: none; padding-left: 0; }
.checklist li { padding-left: 1.7em; position: relative; }
.checklist li::before { content: "✓"; position: absolute; left: .2em; color: var(--accent); font-weight: 700; }

.faq dt { font-weight: 600; margin-top: 1.4em; }
.faq dd { margin: .3em 0 0; }

.step-title { display: flex; align-items: center; gap: .5em; }
.num {
  display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto;
  width: 2em; height: 2em; border-radius: 50%; background: var(--accent); color: var(--on-accent);
  font-size: .9rem; font-weight: 700;
}

/* ตาราง: เลื่อนในกล่องตัวเอง ไม่ให้ทั้งหน้าเลื่อนแนวนอน */
.table-wrap { width: 100%; overflow-x: auto; margin: 0 0 1.2em; border: 1px solid var(--line); border-radius: 8px; }
table { border-collapse: collapse; width: 100%; font-size: 1rem; }
th, td { border-bottom: 1px solid var(--line); padding: .55em .75em; text-align: left; vertical-align: top; }
th { background: var(--accent-soft); font-weight: 600; }
tr:last-child td { border-bottom: 0; }

/* SHA-256 */
.hash-list { list-style: none; padding: 0; }
.hash-item { border: 1px solid var(--line); border-radius: var(--radius); padding: .9em 1em; margin: 0 0 1em; background: var(--card); }
.hash-item .file { font-weight: 600; }
.hash { display: block; font-family: "Cascadia Mono", Consolas, monospace; font-size: .95rem; background: var(--bg-soft);
        border: 1px solid var(--line); border-radius: 6px; padding: .5em .7em; margin: .4em 0 .6em; word-break: break-all; overflow-wrap: anywhere; }
.copy-btn {
  font: inherit; font-size: 1rem; min-height: 44px; padding: .3em 1em; border-radius: 8px;
  border: 2px solid var(--accent); background: var(--card); color: var(--accent); cursor: pointer; font-weight: 600;
}
.copy-btn:hover { background: var(--accent-soft); }
.copy-btn[hidden] { display: none; }
.copy-status { margin-left: .5em; font-size: .95rem; color: var(--muted); }

/* ขั้นตอนสั้นแบบมีตัวเลขในวงกลม */
.steps { list-style: none; padding: 0; margin: 1em 0 1.4em; counter-reset: step; }
.steps > li { counter-increment: step; position: relative; padding-left: 2.9em; margin: 0 0 1em; min-height: 2.2em; }
.steps > li::before {
  content: counter(step); position: absolute; left: 0; top: 0;
  display: flex; align-items: center; justify-content: center;
  width: 2em; height: 2em; border-radius: 50%; background: var(--accent); color: var(--on-accent);
  font-size: .9rem; font-weight: 700;
}
.alt-links { font-size: 1rem; color: var(--muted); }

/* ส่วนกดเปิดดู (details) — ไม่ใช้ JS, พื้นที่กดสูงพอสำหรับนิ้ว */
.more { border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); margin: 0 0 12px; }
.more > summary {
  display: block; list-style: none; cursor: pointer; position: relative;
  min-height: 52px; padding: .75em 3em .75em 1.1em; font-weight: 600; border-radius: var(--radius);
}
.more > summary::-webkit-details-marker { display: none; }
.more > summary::after {
  content: "+"; position: absolute; right: .55em; top: 50%; transform: translateY(-50%);
  width: 1.6em; height: 1.6em; line-height: 1.6em; text-align: center; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent); font-size: 1.1rem; font-weight: 700;
}
.more[open] > summary::after { content: "−"; }
.more > summary:hover { background: var(--accent-soft); }
.more[open] > summary { border-bottom: 1px solid var(--line); border-radius: var(--radius) var(--radius) 0 0; }
.more-body { padding: .9em 1.1em 1em; }
.more-body > :first-child { margin-top: 0; }
.more-body > :last-child { margin-bottom: 0; }

/* ภาพหน้าจอ */
figure { margin: 1.2em 0 1.6em; }
.shot img { width: 100%; height: auto; border: 1px solid var(--line); border-radius: 10px; background: var(--bg-soft); }
figcaption { color: var(--muted); font-size: .95rem; margin-top: .5em; }

/* ภาพวาดหน้าจอเตือนของ Windows (ไม่ใช่ภาพจริง) */
.mock { max-width: 520px; border-radius: 6px; overflow: hidden; box-shadow: 0 4px 18px rgba(0,0,0,.18);
        font-family: "Segoe UI", Tahoma, sans-serif; font-size: 15px; line-height: 1.45; }
.mock p { margin: 0 0 10px; }
.mock-ss { background: var(--smart); color: #fff; padding: 20px 22px 16px; }
.mock-title { font-size: 1.3rem; font-weight: 400; margin: 0 0 12px; }
.mock-ss .link { text-decoration: underline; font-weight: 600; }
.mock .row { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; margin-top: 16px; }
.mock-ss .b { border: 2px solid #fff; padding: 4px 16px; min-width: 96px; text-align: center; }
.mock-ss .b.dim { border-color: rgba(255,255,255,.6); }
.mock .hl { outline: 3px solid #ffd54a; outline-offset: 3px; border-radius: 2px; }
.mock-edge { background: #ffffff; color: #1b1b1b; padding: 14px 16px; border: 1px solid #c8c8c8; }
.mock-edge .file { font-weight: 600; }
.mock-edge .warnline { color: #8a4b00; }
.mock-edge .b { background: #f3f3f3; border: 1px solid #c8c8c8; border-radius: 4px; padding: 3px 14px; color: #1b1b1b; }
.mock-sac { background: #fff; color: #1b1b1b; padding: 18px 20px; border-top: 4px solid #c42b1c; }
.mock-sac .mock-title { font-weight: 600; font-size: 1.1rem; }
.mock-sac .b { background: #f3f3f3; border: 1px solid #ccc; padding: 3px 20px; }

/* เนื้อหาเอกสาร (privacy / terms) */
.doc h2 { border-top: 1px solid var(--line); padding-top: 1em; }
.doc .en { margin-top: 3em; }

/* ท้ายหน้า */
.site-footer { border-top: 1px solid var(--line); background: var(--bg-soft); padding: 24px 0 32px; font-size: 1rem; color: var(--muted); }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin: .5em 0; }

/* เดสก์ท็อป */
@media (min-width: 720px) {
  body { font-size: 1.1875rem; } /* 19px */
  h1 { font-size: 2.3rem; }
  .hero h1 { font-size: 2.6rem; }
  h2 { font-size: 1.65rem; }
  .actions { flex-direction: row; flex-wrap: wrap; align-items: center; }
  .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: start; }
  .grid-2 > .card { margin: 0; }
}
@media (min-width: 960px) {
  .site-nav { width: auto; margin-left: auto; }
  .site-header .wrap { flex-wrap: nowrap; }
  .feature:has(> .shot) { display: grid; grid-template-columns: 5fr 7fr; gap: 28px; align-items: start; }
  .feature figure { margin: 0; }
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}
@media print {
  .site-header, .site-footer, .skip, .copy-btn { display: none; }
}