/* HBK LMS Tools - engine giả lập + trang công cụ. Scoped .hbk-xsim / .hbk-tool*.
   Brand: beige #D8C3A5 · burgundy #7A1F2B · forest #1E3A34.
   <!-- Copyright © Hiếu BK · shop.hieubk.vn --> */

/* ===== khung engine (giả lập phơi sáng) ===== */
.hbk-tool{margin:24px 0}
.hbk-xsim{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:20px;font-family:Inter,system-ui,sans-serif;color:#fafafa}
@media(max-width:980px){.hbk-xsim{grid-template-columns:1fr}}

.hbk-xsim-stage{position:relative;border:1px solid rgba(216,195,165,.16);border-radius:14px;overflow:hidden;background:#000;align-self:start}
.hbk-xsim-stage canvas.xs-scene{display:block;width:100%;aspect-ratio:16/9}
.hbk-xsim-wm{position:absolute;right:14px;bottom:12px;font-size:12px;letter-spacing:.18em;color:rgba(250,250,250,.5);pointer-events:none;text-shadow:0 1px 4px rgba(0,0,0,.6)}
.hbk-xsim-hud{position:absolute;left:14px;top:12px;display:flex;gap:8px;flex-wrap:wrap;pointer-events:none}
.hbk-xsim-chip{font-size:11.5px;padding:4px 10px;border-radius:999px;background:rgba(10,10,10,.62);border:1px solid rgba(216,195,165,.25);color:#D8C3A5;backdrop-filter:blur(4px)}
.hbk-xsim-chip b{color:#fff;font-weight:600}
.hbk-xsim-chip.ok{border-color:rgba(120,200,140,.5)}
.hbk-xsim-chip.warn{border-color:rgba(232,185,68,.6)}
.hbk-xsim-histwrap{position:absolute;right:14px;top:12px;background:rgba(10,10,10,.62);border:1px solid rgba(216,195,165,.25);border-radius:8px;padding:6px;display:none}
.hbk-xsim-histwrap.on{display:block}
.hbk-xsim-histwrap canvas{display:block;width:150px;height:64px}
.hbk-xsim-histwrap span{display:block;text-align:center;font-size:10px;color:rgba(250,250,250,.5);margin-top:3px;letter-spacing:.1em}
.hbk-xsim-meter{position:absolute;left:50%;transform:translateX(-50%);bottom:12px;width:280px;max-width:70%;background:rgba(10,10,10,.62);border:1px solid rgba(216,195,165,.25);border-radius:10px;padding:8px 14px 10px;backdrop-filter:blur(4px)}
.hbk-xsim-meter .scale{position:relative;height:6px;border-radius:3px;background:linear-gradient(90deg,#20242b 0%,#3d4450 46%,#78c88c 50%,#3d4450 54%,#e8b944 78%,#c85a5a 100%)}
.hbk-xsim-meter .needle{position:absolute;top:-5px;width:2.5px;height:16px;background:#fff;border-radius:2px;box-shadow:0 0 6px rgba(255,255,255,.7);transition:left .15s}
.hbk-xsim-meter .lbl{display:flex;justify-content:space-between;font-size:9.5px;color:rgba(250,250,250,.5);margin-top:5px}
.hbk-xsim-meter .val{text-align:center;font-size:11px;color:#D8C3A5;margin-top:2px;font-weight:600}

.hbk-xsim-panel{border:1px solid rgba(216,195,165,.16);border-radius:14px;background:#111413;padding:20px;display:flex;flex-direction:column;gap:18px}
.hbk-xsim-panel .grp label.t{display:flex;justify-content:space-between;align-items:baseline;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:rgba(250,250,250,.55);margin-bottom:9px}
.hbk-xsim-panel .grp label.t output{font-size:15px;color:#D8C3A5;letter-spacing:0;text-transform:none;font-weight:700}
.hbk-xsim-panel .row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.hbk-xsim-seg{display:flex;background:#0a0d0c;border:1px solid rgba(216,195,165,.16);border-radius:9px;overflow:hidden}
.hbk-xsim-seg.col{flex-direction:column}
.hbk-xsim-seg button{flex:1;padding:9px 6px;font-size:12.5px;background:none;border:0;color:rgba(250,250,250,.6);cursor:pointer;font-family:inherit;font-weight:500;transition:.15s;line-height:1.3}
.hbk-xsim-seg button.on{background:#7A1F2B;color:#fff}
.hbk-xsim-seg button:not(.on):hover{color:#D8C3A5}
.hbk-xsim input[type=range]{width:100%;appearance:none;-webkit-appearance:none;height:4px;border-radius:2px;background:#2a2f2c;outline:none;margin:0}
.hbk-xsim input[type=range]::-webkit-slider-thumb{appearance:none;-webkit-appearance:none;width:18px;height:18px;border-radius:50%;background:#D8C3A5;border:3px solid #7A1F2B;cursor:pointer;transition:transform .1s}
.hbk-xsim input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.15)}
.hbk-xsim input[type=range]:disabled::-webkit-slider-thumb{background:#555;border-color:#333;cursor:not-allowed}
.hbk-xsim input[type=range]:disabled{opacity:.45}
.hbk-xsim-locknote{display:none;margin-top:7px;font-size:11.5px;color:#D8C3A5;background:rgba(122,31,43,.22);border:1px solid rgba(122,31,43,.55);border-radius:7px;padding:7px 10px;line-height:1.5}
.hbk-xsim-locknote.on{display:block}
.hbk-xsim-tgl{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:rgba(250,250,250,.8);background:#0a0d0c;border:1px solid rgba(216,195,165,.16);border-radius:9px;padding:9px 12px;cursor:pointer;user-select:none}
.hbk-xsim-tgl .dim{color:rgba(250,250,250,.4)}
.hbk-xsim-tgl .sw{width:34px;height:19px;border-radius:999px;background:#2a2f2c;position:relative;transition:.18s;flex:none;margin-left:8px}
.hbk-xsim-tgl .sw::after{content:'';position:absolute;top:2.5px;left:3px;width:14px;height:14px;border-radius:50%;background:#888;transition:.18s}
.hbk-xsim-tgl.on .sw{background:#1E3A34}
.hbk-xsim-tgl.on .sw::after{left:17px;background:#D8C3A5}
.hbk-xsim-baseiso{display:none;border:1px solid rgba(216,195,165,.3);border-radius:10px;background:#0a0d0c;padding:10px 12px}
.hbk-xsim-baseiso.on{display:block}
.hbk-xsim-baseiso summary{cursor:pointer;font-size:12.5px;font-weight:600;color:#D8C3A5;letter-spacing:.03em}
.hbk-xsim-baseiso .bi-note{font-size:11.5px;color:rgba(250,250,250,.6);line-height:1.55;margin:9px 0 8px}
.hbk-xsim-baseiso table{width:100%;border-collapse:collapse;font-size:11px;margin:0}
.hbk-xsim-baseiso th{text-align:left;color:rgba(250,250,250,.45);font-weight:500;padding:4px 6px;border-bottom:1px solid rgba(216,195,165,.16)}
.hbk-xsim-baseiso td{padding:5px 6px;border-bottom:1px solid rgba(216,195,165,.08);color:rgba(250,250,250,.8);vertical-align:top;line-height:1.45}
.hbk-xsim-baseiso a{color:#D8C3A5;text-decoration:underline;text-underline-offset:2px}
.hbk-xsim-baseiso a:hover{color:#fff}
.hbk-xsim-hints{border-top:1px solid rgba(216,195,165,.16);padding-top:14px}
.hbk-xsim-hints h3{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:#D8C3A5;margin:0 0 9px}
.hbk-xsim-hints ul{list-style:none;display:flex;flex-direction:column;gap:7px;margin:0;padding:0}
.hbk-xsim-hints li{font-size:12.5px;line-height:1.55;color:rgba(250,250,250,.75);padding-left:18px;position:relative}
.hbk-xsim-hints li::before{content:'›';position:absolute;left:4px;color:#94303D;font-weight:700}
.hbk-xsim-hints li.good::before{content:'✓';color:#78c88c}
.hbk-xsim-hints li.warn::before{content:'!';color:#e8b944}

/* ===== trang tool công khai (/cong-cu/) ===== */
.hbk-tool-page{max-width:1280px;margin:0 auto;padding:36px 24px 60px}
.hbk-tool-hero{margin-bottom:22px}
.hbk-tool-eyebrow{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:#D8C3A5;margin:0 0 8px}
.hbk-tool-hero h1{font-size:30px;margin:0 0 10px}
.hbk-tool-sub{color:rgba(250,250,250,.6);font-size:15px;max-width:760px;line-height:1.6;margin:0 0 12px}
.hbk-tool-coursetag{display:inline-block;font-size:12.5px;color:#D8C3A5;border:1px solid rgba(216,195,165,.35);border-radius:999px;padding:5px 14px;text-decoration:none;transition:.15s}
.hbk-tool-coursetag:hover{background:rgba(122,31,43,.25);border-color:#94303D}
.hbk-tool-intro{max-width:820px;color:rgba(250,250,250,.75);line-height:1.7;margin-bottom:8px}
.hbk-tool-cta{margin-top:28px;border:1px solid rgba(216,195,165,.3);border-left:4px solid #7A1F2B;border-radius:12px;padding:20px 24px;background:rgba(30,58,52,.25)}
.hbk-tool-cta p{margin:0 0 12px;color:rgba(250,250,250,.85);line-height:1.6}

/* ===== lưới [hbk_tools] - card có thumbnail, tràn rộng khỏi khung hẹp của theme ===== */
.hbk-tools-wrap{width:100vw;margin-left:calc(50% - 50vw);padding:8px 24px 16px}
/* auto-fit + justify-content:center → ít card vẫn CĂN GIỮA; card gọn để xếp 4/hàng (sẽ còn nhiều tool) */
.hbk-tools-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(228px,262px));justify-content:center;gap:20px;max-width:1160px;margin:0 auto}
/* trang chứa lưới tool → tiêu đề + đoạn dẫn của theme căn giữa cho ra dáng landing */
body:has(.hbk-tools-wrap) .hbk-page-head .wrap h1{text-align:center}
body:has(.hbk-tools-wrap) .hbk-content>p{text-align:center;max-width:720px;margin-left:auto;margin-right:auto}
a.hbk-tools-card{display:flex;flex-direction:column;border:1px solid rgba(216,195,165,.18);border-radius:16px;overflow:hidden;background:#111413;color:#fafafa;transition:.2s;text-decoration:none !important}
a.hbk-tools-card *{text-decoration:none !important}
a.hbk-tools-card:hover{border-color:#94303D;transform:translateY(-4px);box-shadow:0 14px 34px rgba(0,0,0,.45)}
.hbk-tools-thumb{position:relative;display:block;aspect-ratio:16/9;overflow:hidden}
.hbk-tools-thumb img.wp-post-image,.hbk-tools-thumb img.attachment-medium_large{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hbk-tools-thumb svg{position:absolute;inset:0;width:100%;height:100%;transition:transform .35s}
a.hbk-tools-card:hover .hbk-tools-thumb svg{transform:scale(1.05)}
.hbk-tools-thumb.eng-exposure-sim{background:radial-gradient(circle at 72% 30%,rgba(232,185,68,.30),transparent 52%),radial-gradient(circle at 12% 88%,rgba(216,195,165,.12),transparent 50%),linear-gradient(160deg,#24463c,#0c1411 75%)}
.hbk-tools-thumb.eng-camera-movement{background:radial-gradient(circle at 50% 85%,rgba(148,48,61,.45),transparent 60%),radial-gradient(circle at 85% 12%,rgba(216,195,165,.12),transparent 45%),linear-gradient(160deg,#3d151d,#110a0c 75%)}
.hbk-tools-badge{position:absolute;left:12px;top:12px;background:rgba(122,31,43,.9);color:#fff;font-size:10px;font-weight:700;letter-spacing:.14em;padding:4px 11px;border-radius:999px}
.hbk-tools-play{position:absolute;right:12px;bottom:12px;background:#7A1F2B;color:#fff;font-size:12px;font-weight:600;padding:6px 13px;border-radius:999px;opacity:0;transform:translateY(6px);transition:.2s}
a.hbk-tools-card:hover .hbk-tools-play{opacity:1;transform:translateY(0)}
.hbk-tools-body{display:flex;flex-direction:column;gap:7px;padding:14px 16px 16px;flex:1}
.hbk-tools-name{font-family:'Space Grotesk',Inter,sans-serif;font-weight:700;font-size:15px;line-height:1.35;color:#fff}
.hbk-tools-desc{font-size:12px;color:rgba(250,250,250,.58);line-height:1.55;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.hbk-tools-tag{margin-top:auto;padding-top:10px;font-size:10.5px;color:rgba(250,250,250,.55)}
.hbk-tools-tag b{color:#D8C3A5;font-weight:600}

/* khối khóa (fallback khi lms.css không nạp trên trang tool) */
.hbk-tool-page .hbk-locked{text-align:center;border:1px dashed rgba(216,195,165,.35);border-radius:14px;padding:44px 24px;margin:24px 0}
.hbk-tool-page .hbk-lock-icon{font-size:34px;display:block;margin-bottom:10px}
.hbk-tool-page .hbk-cert-btn{display:inline-block;background:#7A1F2B;color:#fff;padding:11px 22px;border-radius:9px;text-decoration:none;font-weight:600;transition:.15s}
.hbk-tool-page .hbk-cert-btn:hover{background:#94303D;color:#fff}

/* ===== engine camera-movement (dùng chung khung .hbk-xsim-*) ===== */
.hbk-xsim-stage canvas.cm-scene{display:block;width:100%;aspect-ratio:16/9}
.hbk-cmv-mapwrap{position:absolute;right:14px;top:12px;background:rgba(10,10,10,.62);border:1px solid rgba(216,195,165,.25);border-radius:8px;padding:6px}
.hbk-cmv-mapwrap canvas{display:block;width:150px;height:150px}
.hbk-cmv-mapwrap span{display:block;text-align:center;font-size:10px;color:rgba(250,250,250,.5);margin-top:3px;letter-spacing:.1em}
.hbk-cmv-moves{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.hbk-cmv-moves button{padding:10px 8px;font-size:12.5px;background:#0a0d0c;border:1px solid rgba(216,195,165,.16);border-radius:9px;color:rgba(250,250,250,.7);cursor:pointer;font-family:inherit;font-weight:500;transition:.15s;text-align:left;line-height:1.35}
.hbk-cmv-moves button small{display:block;color:rgba(250,250,250,.4);font-size:10.5px;letter-spacing:.04em}
.hbk-cmv-moves button.on{background:#7A1F2B;color:#fff;border-color:#7A1F2B}
.hbk-cmv-moves button.on small{color:rgba(255,255,255,.65)}
.hbk-cmv-moves button:not(.on):hover{border-color:#94303D;color:#D8C3A5}
.hbk-cmv-moves button.wide{grid-column:1/-1;border-style:dashed;border-color:rgba(216,195,165,.4)}
.hbk-cmv .grp label.t output{float:right;font-size:14px;color:#D8C3A5;text-transform:none;font-weight:700}
.hbk-xsim-seg button:disabled{opacity:.35;cursor:not-allowed;color:rgba(250,250,250,.35)}

/* ===== engine exposure-monitor (đọc hiểu công cụ đo sáng) ===== */
.hbk-emo .hbk-xsim-stage canvas.em-img{display:block;width:100%;aspect-ratio:16/9;cursor:crosshair}
.hbk-emo .hbk-xsim-stage canvas.em-scope{display:block;width:100%;aspect-ratio:960/230;border-top:1px solid rgba(216,195,165,.22);background:#0a0d0c;cursor:crosshair}
.hbk-tools-thumb.eng-exposure-monitor{background:radial-gradient(circle at 80% 20%,rgba(63,217,122,.16),transparent 55%),radial-gradient(circle at 12% 85%,rgba(216,195,165,.1),transparent 50%),linear-gradient(160deg,#14231c,#0a0f0c 75%)}

/* ===== engine white-balance ===== */
.hbk-wbe .hbk-xsim-stage canvas.wb-img{display:block;width:100%;aspect-ratio:16/9;cursor:crosshair}
.hbk-tools-thumb.eng-white-balance{background:linear-gradient(105deg,rgba(255,150,40,.28) 0%,transparent 45%,transparent 55%,rgba(70,120,255,.28) 100%),linear-gradient(160deg,#232019,#0c0e14 80%)}
.hbk-tools-badge.pro{background:#e8b944;color:#171310}

/* ===== engine exposure-triangle ===== */
.hbk-tri .hbk-xsim-stage canvas.tri-cv{display:block;width:100%;aspect-ratio:16/9}
.hbk-tools-thumb.eng-exposure-triangle{background:radial-gradient(circle at 50% 25%,rgba(232,185,68,.16),transparent 55%),radial-gradient(circle at 20% 85%,rgba(243,134,178,.12),transparent 50%),radial-gradient(circle at 80% 85%,rgba(120,200,140,.12),transparent 50%),linear-gradient(160deg,#171a17,#0a0d0b 80%)}

/* ===== engine focal-length ===== */
.hbk-fl .hbk-xsim-stage canvas.fl-cv{display:block;width:100%;aspect-ratio:16/9}
.hbk-tools-thumb.eng-focal-length{background:radial-gradient(circle at 25% 30%,rgba(232,185,68,.14),transparent 50%),radial-gradient(circle at 78% 70%,rgba(120,200,140,.14),transparent 55%),linear-gradient(160deg,#1a1d17,#0b0d0a 80%)}