/* ===== หน้าเนื้อหาในโลกไม้วัดระดับน้ำ (ต่อจาก home.css) =====
   ใช้กับ about / works / citizen-science / gallery / open-data / mine-water / admin
   body class="home gp" · ส่วนต่าง ๆ เป็น #part-N ตามขีดบนไม้วัด */

.gp .sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.gp [id^="part-"], .gp #request, .gp #contact, .gp .gp-sources li { scroll-margin-top: 72px; }

/* ไม้วัดหน้าเนื้อหา: ไม่มีเส้นแบ่งสามช่วงแบบหน้าแรก */
.gp .gauge-marks li:nth-child(3), .gp .gauge-marks li:nth-child(6) { border-top: 0; }

/* ----- หัวหน้าและส่วน ----- */
.gp-hero { padding-block: clamp(40px, 5vw, 72px) clamp(32px, 4vw, 48px); border-bottom: 4px solid var(--g-silt-hi); }
.gp-hero h1 { font-size: clamp(2.3rem, 5vw, 4rem); line-height: 1.3; color: var(--g-navy); margin: 0 0 .3em; max-width: 20ch; }
.gp-hero .g-lede { color: var(--g-ink); margin: 0; }
.gp-meta { margin: 12px 0 0; font-family: var(--g-display); font-weight: 600; font-size: .95rem; color: var(--g-ink-2); }

.gp-part { padding-block: clamp(48px, 6vw, 88px); border-bottom: 1px solid rgba(20, 24, 31, .16); }
.gp-part.g-water, .gp-part.g-navy { border-bottom: 0; }
.gp .step-head p { margin: 10px 0 0; max-width: 62ch; color: var(--g-ink-2); }
.gp .g-water .step-head p, .gp .g-navy .step-head p { color: var(--g-on-dark-2); }
.gp-col-h { font-size: clamp(1.4rem, 2.4vw, 1.8rem); line-height: 1.35; margin: 0 0 18px; }

.gp-cols { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(32px, 5vw, 72px); align-items: start; }
.gp-prose { max-width: 62ch; }
.gp-prose > p:first-child { margin-top: 0; }
.gp-note { margin: 12px 0 0; font-size: .92rem; color: var(--g-ink-2); }
.g-water .gp-note, .g-navy .gp-note { color: var(--g-on-dark-2); }
.gp-num { font-variant-numeric: tabular-nums; white-space: nowrap; }

/* เชิงอรรถ */
.gp a.gp-fn { font-family: var(--g-display); font-size: .72em; font-weight: 700; vertical-align: super; line-height: 0; margin-left: .15em; color: var(--g-silt); text-decoration: none; white-space: nowrap; }
.gp a.gp-fn:hover { text-decoration: underline; }
.gp .g-water a.gp-fn, .gp .g-navy a.gp-fn { color: var(--g-lime); }

/* ----- รายการ ----- */
.gp-list { list-style: none; margin: 0; padding: 0; border-top: 3px solid var(--g-ink); }
.gp-list > li { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.6fr); gap: 16px; padding: 14px 0; border-bottom: 1px solid rgba(20, 24, 31, .2); }
.gp-list > li > b { font-family: var(--g-display); font-weight: 700; font-size: 1.15rem; line-height: 1.45; color: var(--g-navy); }
.gp-list > li > span { color: var(--g-ink-2); }
.gp-cols .gp-list > li { grid-template-columns: minmax(0, 1fr); gap: 2px; }

/* ขั้นตอน: เลขขีดบนไม้วัด */
.gp-steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), 1fr)); gap: 28px clamp(16px, 2.5vw, 32px); counter-reset: steps; }
.gp-steps li { counter-increment: steps; display: flex; flex-direction: column; gap: 4px; padding-top: 14px; border-top: 4px solid var(--g-navy); }
.gp-steps b { font-family: var(--g-display); font-weight: 700; font-size: 1.25rem; line-height: 1.35; }
.gp-steps b::before { content: counter(steps); display: inline-block; min-width: 1.6em; margin-right: 8px; padding: 0 4px; text-align: center; background: var(--g-navy); color: var(--g-paper); }
.gp-steps span { color: var(--g-ink-2); }
.g-navy .gp-steps li, .g-water .gp-steps li { border-top-color: var(--g-paper); }
.g-navy .gp-steps b::before { background: var(--g-lime); color: var(--g-ink); }
.g-water .gp-steps b::before { background: var(--g-paper); color: var(--g-silt); }
.g-navy .gp-steps span, .g-water .gp-steps span { color: var(--g-on-dark-2); }
.gp-cols .gp-steps { grid-template-columns: minmax(0, 1fr); }

/* ตาราง: ruled จาก home.css + เลื่อนแนวนอนในกล่องเมื่อจอแคบ */
.gp-scroll { position: relative; overflow-x: auto; } /* relative: เก็บ .sr-only ในตารางไว้ในกล่อง ไม่ให้ดันหน้ากว้าง */
.gp-scroll .ruled { min-width: 34rem; }
.gp .ruled-water { margin-top: 0; }
.gp .ruled .num { font-variant-numeric: tabular-nums; white-space: nowrap; }

.gp-tag { display: inline-block; margin: 0 6px 6px 0; padding: 0 8px; border: 2px solid var(--g-ink); font-family: var(--g-display); font-weight: 600; font-size: .85rem; line-height: 1.7; color: var(--g-ink); white-space: nowrap; }

.gp-placeholder {
    display: grid; place-items: center; min-height: 11rem; padding: 16px; text-align: center;
    font-family: var(--g-display); font-weight: 600; font-size: .95rem; color: var(--g-ink-2);
    border: 2px dashed rgba(20, 24, 31, .4);
    background: repeating-linear-gradient(135deg, var(--g-paper) 0 14px, var(--g-enamel) 14px 28px);
}

/* ปุ่มกรอง (แกลลอรี่ / ผู้ดูแล) */
.gp-filter { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.gp-filter button, .gp-filter a {
    display: inline-flex; align-items: center; min-height: 44px; padding: 0 16px; cursor: pointer;
    font: 600 1rem var(--g-display); color: var(--g-navy); background: var(--g-paper);
    border: 2px solid var(--g-navy); border-radius: 0; text-decoration: none;
    transition: background-color .2s, color .2s;
}
.gp-filter button:hover, .gp-filter a:hover { background: var(--g-enamel); }
.gp-filter button[aria-pressed="true"], .gp-filter a[aria-current="page"] { background: var(--g-navy); color: var(--g-paper); }

/* แผงฟอร์มบนกระดาษ (เหมือน .door-form หน้าแรก) */
.gp-panel { background: var(--g-paper); color: var(--g-ink); padding: 28px clamp(18px, 2.4vw, 32px); border: 3px solid var(--g-ink); }
.g-navy .gp-panel { border-color: var(--g-paper); }
.gp-panel h1, .gp-panel h2, .gp-panel h3 { color: var(--g-navy); }
.gp .g-form textarea {
    width: 100%; padding: 10px 12px; font: 400 1rem/1.5 var(--g-body); color: var(--g-ink);
    background: var(--g-paper); border: 2px solid var(--g-ink); border-radius: 0; resize: vertical;
}
.gp .g-form textarea:focus-visible { outline: 3px solid var(--g-lime); outline-offset: 0; border-color: var(--g-navy); }
.gp .form-err, .gp .form-ok { margin: 0 0 14px; }

/* ----- แหล่งที่มาท้ายหน้า ----- */
.gp-sources { padding-block: clamp(40px, 5vw, 64px); border-top: 4px solid var(--g-navy); background: var(--g-paper); }
.gp-sources h2 { font-size: 1.3rem; margin: 0 0 14px; color: var(--g-navy); }
.gp-sources ol { margin: 0; padding-left: 1.6em; max-width: 80ch; font-size: .95rem; color: var(--g-ink-2); }
.gp-sources li { padding: 4px 0; }
.gp-sources li::marker { font-family: var(--g-display); font-weight: 700; color: var(--g-navy); }
.gp-sources li:target { background: #eef6e2; outline: 2px solid var(--g-lime); }

/* ----- ผลงาน ----- */
.wk-pct { font-family: var(--g-display); font-weight: 700; font-size: 1.25rem; color: var(--g-navy); white-space: nowrap; }
.wk-item { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: clamp(20px, 3vw, 40px); align-items: start; padding-block: 28px; border-top: 3px solid var(--g-ink); }
.wk-item h3 { font-size: 1.35rem; margin: 0 0 8px; color: var(--g-navy); }
.wk-item .gp-meta { margin: 0 0 4px; }
.wk-item .ruled tbody th { width: 24%; }

/* ----- แกลลอรี่ ----- */
.gl-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 17rem), 1fr)); gap: 40px clamp(20px, 3vw, 32px); }
.gl-item { border-top: 3px solid var(--g-ink); padding-top: 14px; }
.gl-item[hidden] { display: none; }
.gl-item h3 { font-size: 1.2rem; margin: 14px 0 8px; color: var(--g-navy); }
.gl-item p { margin: 0 0 6px; }
.gl-submit { margin-top: 48px; padding-top: 18px; border-top: 1px solid rgba(20, 24, 31, .2); max-width: 62ch; }

/* ----- ผู้ดูแล ----- */
.ad-login { max-width: 28rem; }
.ad-login h1 { font-size: 1.7rem; margin: 0 0 18px; }
.ad-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; }
.ad-head h1 { margin: 0; }
.ad-req { padding-block: 24px; border-bottom: 1px solid rgba(20, 24, 31, .2); }
.ad-req:first-of-type { border-top: 3px solid var(--g-ink); }
.ad-req-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px; }
.ad-req-head h3 { margin: 0; font-size: 1.2rem; color: var(--g-navy); overflow-wrap: anywhere; }
.ad-mail { font-family: var(--g-body); font-weight: 400; font-size: 1rem; color: var(--g-ink-2); }
.ad-state--approved { border-color: var(--g-go); color: var(--g-go); }
.ad-state--rejected { border-color: var(--g-ink-2); color: var(--g-ink-2); }
.ad-req .g-form { max-width: 44rem; margin-top: 12px; }
.ad-req .g-form .g-btn { width: auto; margin-top: 0; }
.ad-actions { margin-top: 0; }

/* ----- ทางเลือกน้ำเหมือง: แปลงโทเคนที่ minewater.css ใช้ ให้เป็นสีและตัวอักษรของโลกไม้วัด ----- */
.mw {
    --color-paper: var(--g-paper);
    --color-paper-2: var(--g-enamel);
    --color-paper-3: #e7e3d8;
    --color-ink: var(--g-ink);
    --color-ink-2: var(--g-ink-2);
    --color-muted: var(--g-ink-2);
    --color-rule: rgba(20, 24, 31, .2);
    --color-rule-strong: var(--g-ink);
    --color-accent: var(--g-navy);
    --color-accent-strong: var(--g-navy-deep);
    --color-accent-ink: var(--g-paper);
    --color-silt: var(--g-silt);
    --font-display: var(--g-display);
    --font-body: var(--g-body);
    --text-xs: .875rem; --text-sm: 1rem; --text-md: 1.125rem; --text-xl: 1.6rem;
    --space-3xs: .25rem; --space-2xs: .5rem; --space-xs: .75rem; --space-sm: 1rem; --space-md: 1.5rem; --space-xl: 3rem;
    --measure: 64ch;
    --rule-hair: 2px;
    --radius-btn: 0;
    --ease-out: var(--g-ease);
    --dur-short: 180ms;
}
.mw .mw-sim { padding-bottom: clamp(32px, 4vw, 56px); border-bottom: 1px solid rgba(20, 24, 31, .16); }
.mw .mw-views button { font-family: var(--g-display); border-width: 2px; color: var(--g-navy); border-color: var(--g-navy); }
.mw .mw-views button[aria-pressed="true"] { background: var(--g-navy); border-color: var(--g-navy); color: var(--g-paper); }
.mw .mw-stage { border-block: 3px solid var(--g-ink); }
.mw .mw-detail h3 { color: var(--g-navy); }
.mw .mw-n { border-radius: 0; background: var(--g-navy); }
.mw .g-water .mw-n { background: var(--g-paper); color: var(--g-silt); }

@media (max-width: 900px) {
    .gp-cols { grid-template-columns: minmax(0, 1fr); }
    .gp .gauge-marks li:nth-child(3), .gp .gauge-marks li:nth-child(6) { border-right: 1px solid rgba(20, 24, 31, .14); }
}
@media (max-width: 640px) {
    .gp-hero h1 { font-size: 2.2rem; }
    .gp-list > li { grid-template-columns: minmax(0, 1fr); gap: 2px; }
    .wk-item { grid-template-columns: minmax(0, 1fr); }
    .gp-placeholder { min-height: 8rem; }
    .gp-filter button, .gp-filter a { flex: 1 1 auto; justify-content: center; }
    .gp-panel { padding: 24px 18px; }
}
@media (prefers-reduced-motion: reduce) {
    .gp-filter button, .gp-filter a { transition: none; }
}