/* Workshop và đào tạo: nền giấy kem kẻ ô li, bảng đen xanh đậm, điểm nhấn cam san hô + vàng bút dạ */
:root{
  --paper:#fbf6ec; --paper2:#f4ecdb; --white:#fffdf8; --line:#e3d6bd; --grid:rgba(23,64,92,.055);
  --ink:#1d2b3a; --mut:#5d6672; --navy:#17405c; --navy2:#0f2c40; --board:#1e3a4c;
  --coral:#e8603c; --coral2:#c94b2b; --mustard:#f4b942; --hl:rgba(244,185,66,.55); --chalk:#f3efe4;
  --r:16px; --max:1180px;
  --sis-cart-bar-bg:#17405c;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Lexend',system-ui,sans-serif;background:var(--paper);color:var(--ink);line-height:1.62;overflow-x:hidden;font-size:16px}
a{color:inherit;text-decoration:none}
h1,h2,h3{line-height:1.18;margin:0;font-family:'Fraunces',Georgia,serif;font-weight:800;color:var(--navy2)}
h2{font-size:clamp(26px,3.3vw,40px);letter-spacing:-.01em}
h3{font-weight:600}
p{margin:0}
img{max-width:100%;height:auto}
.material-symbols-outlined{font-size:22px;vertical-align:middle;line-height:1}

/* ── nền giấy ô li + nét vẽ tay trôi ───────────────────────── */
.bg{position:fixed;inset:0;z-index:-1;overflow:hidden;background:
  linear-gradient(var(--grid) 1px,transparent 1px) 0 0/26px 26px,
  linear-gradient(90deg,var(--grid) 1px,transparent 1px) 0 0/26px 26px,
  radial-gradient(900px 500px at 85% -10%,#fde3cf 0%,transparent 65%),
  radial-gradient(800px 500px at -10% 60%,#e4ecef 0%,transparent 60%),var(--paper)}
.doodle{position:absolute;color:rgba(23,64,92,.16);animation:bob 14s ease-in-out infinite alternate}
.dd1{left:4%;top:22%}
.dd2{right:6%;top:58%;color:rgba(232,96,60,.22);animation-delay:-4s}
.dd3{left:42%;top:86%;animation-delay:-8s}
.dd4{right:22%;top:12%;color:rgba(232,96,60,.18);animation-delay:-2s}
@keyframes bob{0%{transform:translate(0,0) rotate(0)}100%{transform:translate(30px,-26px) rotate(12deg)}}

/* ── reveal ───────────────────────────────────────────────── */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.d1{transition-delay:.1s}.d2{transition-delay:.2s}.d3{transition-delay:.3s}.d4{transition-delay:.4s}

/* bút dạ vàng: tô dần khi khối hiện */
mark.hl{background:linear-gradient(transparent 58%,var(--hl) 58%,var(--hl) 92%,transparent 92%) no-repeat 0 0/0% 100%;color:inherit;padding:0 .08em;transition:background-size 1s cubic-bezier(.3,.7,.2,1) .35s}
.in mark.hl,.in.hl{background-size:100% 100%}

/* ── thanh trên ───────────────────────────────────────────── */
.top{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:20px;padding:11px 24px;background:rgba(251,246,236,.88);backdrop-filter:blur(10px);border-bottom:2px dashed var(--line)}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--navy2)}
.brand img{border-radius:8px}
.topnav{display:flex;gap:20px;margin-left:auto;font-size:14px;color:var(--mut)}
.topnav a{position:relative}
.topnav a:hover{color:var(--coral2)}
@media(max-width:860px){.topnav{display:none}.top .btn{margin-left:auto}}

/* ── nút: kiểu con dấu, có bóng lệch ──────────────────────── */
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:12px;font-weight:700;padding:12px 20px;border:2px solid var(--navy2);transition:transform .15s,box-shadow .15s,background .2s;cursor:pointer;font-family:inherit;font-size:15px;line-height:1.2}
.btn-pri{background:var(--coral);color:#fff;box-shadow:4px 4px 0 var(--navy2)}
.btn-pri:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 var(--navy2)}
.btn-pri:active,.btn-line:active{transform:translate(3px,3px);box-shadow:1px 1px 0 var(--navy2)}
.btn-line{background:var(--white);color:var(--navy2);box-shadow:4px 4px 0 var(--navy2)}
.btn-line:hover{background:#fff4e4;transform:translate(-2px,-2px);box-shadow:6px 6px 0 var(--navy2)}
.btn-lg{padding:15px 24px;font-size:16px}
.btn-sm{padding:8px 14px;font-size:13.5px;box-shadow:3px 3px 0 var(--navy2)}
.btn.full{width:100%;justify-content:center}

/* ── hero ─────────────────────────────────────────────────── */
.hero{max-width:var(--max);margin:0 auto;padding:64px 24px 54px;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.kicker{font-family:'Patrick Hand',cursive;font-size:26px;color:var(--coral);transform:rotate(-3deg);display:inline-block;margin-bottom:6px}
.kicker.reveal.in{transform:rotate(-3deg)}
h1{font-size:clamp(34px,5vw,60px);letter-spacing:-.015em}
.tw-wrap{display:block;color:var(--coral2);min-height:1.18em}
.tw{border-right:3px solid var(--coral);padding-right:3px;animation:caret .9s step-end infinite}
@keyframes caret{50%{border-color:transparent}}
.lead{font-size:17.5px;color:var(--mut);max-width:580px;margin:20px 0 28px}
.cta{display:flex;gap:16px;flex-wrap:wrap}
.chips{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:500;padding:6px 12px 6px 9px;border-radius:999px;background:var(--white);border:1.5px solid var(--line);color:var(--navy)}
.chip .material-symbols-outlined{font-size:18px;color:var(--coral)}
@media(max-width:920px){.hero{grid-template-columns:1fr;padding-top:40px;gap:56px;text-align:center}.lead{margin-left:auto;margin-right:auto}.cta,.chips{justify-content:center}}

/* bảng đen */
.hero-visual{position:relative;padding:18px 26px 40px}
.board{position:relative;border-radius:14px;padding:14px;background:linear-gradient(135deg,#b07a4a,#8a5a33);box-shadow:0 30px 60px -30px rgba(15,44,64,.7),inset 0 0 0 2px rgba(255,255,255,.12);transform:rotate(-1.2deg)}
.board-face{position:relative;border-radius:6px;padding:26px 28px 30px;background:radial-gradient(600px 300px at 30% 20%,#2a4b5f 0%,var(--board) 60%,#173040 100%);color:var(--chalk);font-family:'Patrick Hand',cursive;overflow:hidden}
.board-face::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 70% 80%,rgba(255,255,255,.06),transparent 40%),radial-gradient(circle at 20% 70%,rgba(255,255,255,.05),transparent 30%);pointer-events:none}
.chalk-tag{display:inline-block;font-size:17px;padding:0 10px;border:1.5px dashed rgba(243,239,228,.6);border-radius:8px;color:#ffd7a8}
.chalk-title{font-size:clamp(30px,3.4vw,40px);line-height:1.1;margin-top:10px}
.chalk-line{display:block;width:72%;height:12px;margin:2px 0 6px}
.chalk-line path{fill:none;stroke:#ffcf7a;stroke-width:3;stroke-linecap:round;stroke-dasharray:320;stroke-dashoffset:320;animation:draw 1.4s ease .6s forwards}
@keyframes draw{to{stroke-dashoffset:0}}
.chalk-sub{font-size:19px;color:rgba(243,239,228,.75)}
.chalk-list{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:8px;font-size:22px}
.chalk-list li{display:flex;align-items:center;gap:12px;transition:color .3s}
.chalk-list svg{width:28px;height:28px;flex:none}
.chalk-list rect{fill:none;stroke:rgba(243,239,228,.7);stroke-width:1.8}
.chalk-list .tick{fill:none;stroke:#ffcf7a;stroke-width:2.8;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:24;stroke-dashoffset:24;transition:stroke-dashoffset .45s ease}
.chalk-list li.done .tick{stroke-dashoffset:0}
.chalk-list li.done{color:#fff}
.board-ledge{position:relative;height:14px;margin:10px -6px -6px;border-radius:4px;background:#7a4d2a}
.chalk-stick{position:absolute;top:-6px;left:18%;width:38px;height:8px;border-radius:3px;background:#f6f3ea}
.chalk-stick.c2{left:30%;width:26px;background:#ffcf7a;transform:rotate(-6deg)}
.eraser{position:absolute;top:-12px;right:14%;width:64px;height:16px;border-radius:4px;background:linear-gradient(#3b4a57 55%,#c9b28d 55%)}
.note{position:absolute;font-family:'Patrick Hand',cursive;font-size:19px;line-height:1.2;color:#3a2a10;padding:12px 14px 14px;width:160px;box-shadow:0 14px 24px -14px rgba(0,0,0,.45);z-index:2}
.note::before{content:"";position:absolute;top:-9px;left:50%;width:56px;height:18px;margin-left:-28px;background:rgba(255,255,255,.55);transform:rotate(-4deg)}
.n1{right:-4px;top:-6px;background:#ffe27a;transform:rotate(5deg);animation:sway 6s ease-in-out infinite}
.n2{left:-6px;bottom:2px;background:#ffc6b0;transform:rotate(-5deg);animation:sway 7s ease-in-out infinite reverse}
@keyframes sway{50%{translate:0 -8px}}
.plane{position:absolute;left:46%;bottom:-6px;animation:fly 9s ease-in-out infinite}
@keyframes fly{0%{transform:translate(0,0) rotate(-8deg)}50%{transform:translate(70px,-26px) rotate(6deg)}100%{transform:translate(0,0) rotate(-8deg)}}
@media(max-width:920px){.hero-visual{max-width:520px;margin:0 auto;text-align:left}}
@media(max-width:560px){.hero-visual{padding:18px 6px 46px}.note{width:136px;font-size:17px}.n1{right:-2px;top:-14px}.n2{left:-2px;bottom:0}.board-face{padding:22px 18px 24px}.chalk-list{font-size:19px}.plane{display:none}}

/* băng dính chữ chạy */
.tape-wrap{overflow:hidden;padding:14px 0 10px}
.tape-strip{overflow:hidden;padding:12px 0;background:var(--navy);transform:rotate(-1deg);margin:0 -10px;box-shadow:0 10px 24px -16px rgba(0,0,0,.5)}
.track{display:flex;gap:34px;width:max-content;animation:scroll 36s linear infinite;font-family:'Patrick Hand',cursive;font-size:21px;color:var(--chalk);white-space:nowrap}
.track span::before{content:"✎";color:var(--mustard);margin-right:10px;font-family:'Lexend',sans-serif;font-size:15px}
@keyframes scroll{to{transform:translateX(-50%)}}

/* ── section chung ────────────────────────────────────────── */
.section{max-width:var(--max);margin:0 auto;padding:84px 24px}
.sec-head{text-align:center;max-width:780px;margin:0 auto 44px}
.eyebrow{display:inline-block;font-family:'Patrick Hand',cursive;font-size:22px;color:var(--coral);margin-bottom:6px}
.sec-sub{color:var(--mut);margin-top:14px}

/* ai thường mời: thẻ ghim */
.who{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.who-card{position:relative;padding:30px 26px 26px;background:var(--white);border:1.5px solid var(--line);border-radius:6px;box-shadow:0 18px 30px -24px rgba(15,44,64,.55);background-image:linear-gradient(transparent 31px,rgba(23,64,92,.08) 32px);background-size:100% 32px;background-position:0 12px}
.who-card:nth-child(1){transform:rotate(-1.2deg)}.who-card:nth-child(3){transform:rotate(1deg)}
.who-card.reveal{opacity:0}.who-card.reveal.in{opacity:1}
.pin{position:absolute;top:-9px;left:50%;width:18px;height:18px;margin-left:-9px;border-radius:50%;background:radial-gradient(circle at 35% 35%,#ff9d7e,var(--coral2));box-shadow:0 3px 4px rgba(0,0,0,.25)}
.who-card .ic{font-size:30px;color:var(--navy);background:#e6eef1;border-radius:12px;padding:10px;margin-bottom:12px}
.who-card h3{font-size:21px;margin-bottom:8px}
.who-card p{color:var(--mut);font-size:15px}
@media(max-width:860px){.who{grid-template-columns:1fr;max-width:560px;margin:0 auto}}

/* ── khối xếp buổi học ────────────────────────────────────── */
.builder{display:grid;grid-template-columns:.9fr 1.1fr;gap:34px;align-items:start}
@media(max-width:940px){.builder{grid-template-columns:1fr}}
.controls{position:relative;padding:26px;border-radius:var(--r);background:var(--white);border:2px solid var(--navy2);box-shadow:6px 6px 0 var(--navy2);display:grid;gap:22px}
.ctl{display:grid;grid-template-columns:auto 1fr;gap:10px 12px;align-items:center}
.ctl-num{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:var(--coral);color:#fff;font-weight:700;font-size:14px}
.ctl-lb{font-family:'Fraunces',serif;font-weight:600;font-size:19px;color:var(--navy2)}
.seg,.topics{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:8px}
.seg button,.topics button{font:inherit;font-size:14.5px;font-weight:500;cursor:pointer;padding:10px 14px;border-radius:10px;border:1.5px solid var(--line);background:var(--paper);color:var(--navy);transition:background .2s,border-color .2s,color .2s,transform .12s;display:inline-flex;align-items:center;gap:6px}
.seg button{flex:1 1 0;justify-content:center;min-width:0}
.seg button:hover,.topics button:hover{border-color:var(--coral)}
.seg button:active,.topics button:active{transform:scale(.97)}
.seg button.on,.topics button.on{background:var(--navy);border-color:var(--navy);color:#fff}
.topics .material-symbols-outlined{font-size:19px}
.ctl-hint{display:flex;align-items:center;gap:6px;font-size:13.5px;color:var(--mut)}
.ctl-hint .material-symbols-outlined{font-size:19px;color:var(--coral);animation:tap 1.6s ease-in-out infinite}
@keyframes tap{50%{transform:translateY(-3px)}}
@media(max-width:480px){.seg{flex-direction:column}.seg button{flex:none}}

.notebook{position:relative;padding-top:16px}
.rings{position:absolute;top:0;left:34px;right:34px;display:flex;justify-content:space-between;z-index:2}
.rings i{width:14px;height:30px;border-radius:8px;border:3px solid #7d8a96;background:linear-gradient(90deg,#c8d0d6,#f5f7f8)}
.nb-page{position:relative;padding:34px 30px 28px 64px;background:var(--white);border-radius:6px 6px 14px 14px;border:1.5px solid var(--line);box-shadow:0 30px 50px -34px rgba(15,44,64,.7);background-image:linear-gradient(90deg,transparent 46px,rgba(232,96,60,.45) 46px,rgba(232,96,60,.45) 48px,transparent 48px),linear-gradient(transparent 33px,rgba(23,64,92,.09) 34px);background-size:100% 100%,100% 34px}
.nb-hand{font-family:'Patrick Hand',cursive;font-size:20px;color:var(--coral)}
.nb-title{font-size:clamp(22px,2.4vw,28px);margin-top:2px}
.nb-for{color:var(--mut);font-size:15px}
.nb-time{display:flex;gap:6px;margin:16px 0 18px}
.nb-time span{flex:1;min-width:0;text-align:center;font-size:12px;font-weight:700;padding:5px 2px;border-radius:6px;background:#e6eef1;color:var(--navy);animation:pop .4s cubic-bezier(.3,1.5,.5,1) both}
.nb-time span.more{background:transparent;border:1.5px dashed var(--line);color:var(--mut)}
@keyframes pop{from{opacity:0;transform:scale(.6)}}
.nb-parts{list-style:none;margin:0;padding:0;display:grid;gap:12px;counter-reset:p}
.nb-parts li{position:relative;padding:12px 14px;border-radius:10px;background:rgba(251,246,236,.85);border:1.5px solid var(--line);animation:ink .55s ease both}
.nb-parts li.lab{border-color:rgba(232,96,60,.5);background:#fff2ea}
.nb-parts li.ghost{border-style:dashed;background:transparent;color:var(--mut)}
@keyframes ink{from{opacity:0;clip-path:inset(0 100% 0 0);transform:translateX(-6px)}to{opacity:1;clip-path:inset(0 0 0 0);transform:none}}
.pt-head{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap}
.pt-no{font-family:'Patrick Hand',cursive;font-size:18px;color:var(--coral2)}
.pt-title{font-weight:700;color:var(--navy2);font-size:15.5px}
.pt-tag{margin-left:auto;font-size:11.5px;font-weight:700;padding:2px 8px;border-radius:99px;background:var(--navy);color:#fff;white-space:nowrap}
.lab .pt-tag{background:var(--coral)}
.ghost .pt-tag{background:var(--line);color:var(--navy)}
.nb-parts ul{margin:6px 0 0;padding-left:18px;font-size:14.3px;color:var(--mut)}
.nb-parts ul li{all:unset;display:list-item}
.nb-note{margin-top:12px;font-family:'Patrick Hand',cursive;font-size:18px;color:var(--navy)}
.nb-foot{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:20px 0 20px;font-size:14px}
.nb-foot b{display:block;font-size:12.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--navy);margin-bottom:6px}
.nb-foot span{display:flex;flex-wrap:wrap;gap:6px;color:var(--mut)}
.nb-foot i{font-style:normal;padding:2px 9px;border-radius:99px;background:#fff4dc;border:1px solid #f1d9a2;color:#6d4b0b;font-size:13px}
@media(max-width:560px){.nb-page{padding:30px 16px 22px 40px;background-image:linear-gradient(90deg,transparent 26px,rgba(232,96,60,.45) 26px,rgba(232,96,60,.45) 28px,transparent 28px),linear-gradient(transparent 33px,rgba(23,64,92,.09) 34px)}.rings{left:20px;right:20px}.nb-foot{grid-template-columns:1fr}.pt-tag{margin-left:0}}

/* ── chủ đề: tập hồ sơ có tab ─────────────────────────────── */
.folders{display:grid;grid-template-columns:repeat(3,1fr);gap:34px 22px;padding-top:16px}
@media(max-width:900px){.folders{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.folders{grid-template-columns:1fr}}
.folder{--c:var(--navy);--t:#dfe9ee;position:relative;padding:28px 24px 22px;border-radius:0 14px 14px 14px;background:var(--white);border:1.5px solid var(--line);border-top:5px solid var(--c);transition:transform .2s,box-shadow .2s;display:flex;flex-direction:column}
.folder:hover{transform:translateY(-3px);box-shadow:0 22px 36px -26px rgba(15,44,64,.7)}
.folder .tab{position:absolute;top:-30px;left:-1.5px;padding:3px 16px 4px;border-radius:10px 10px 0 0;background:var(--c);color:#fff;font-family:'Patrick Hand',cursive;font-size:18px;line-height:1.3}
.folder .ic{font-size:28px;color:var(--c);background:var(--t);border-radius:10px;padding:8px;align-self:flex-start;margin-bottom:12px}
.folder h3{font-size:20px;margin-bottom:8px}
.folder p{color:var(--mut);font-size:15px;flex:1}
.folder a{margin-top:16px;display:inline-flex;align-items:center;gap:4px;font-weight:700;font-size:14px;color:var(--coral2);align-self:flex-start;border-bottom:2px solid transparent}
.folder a:hover{border-color:var(--coral2)}
.folder a .material-symbols-outlined{font-size:18px;transition:transform .2s}
.folder a:hover .material-symbols-outlined{transform:translateX(4px)}
.f-ai{--c:#e8603c;--t:#fde5da}.f-vibe{--c:#17405c;--t:#dfe9ee}.f-qtda{--c:#8a5a33;--t:#f3e6d8}.f-sheets{--c:#3c6e8f;--t:#e1ecf3}.f-test{--c:#b2453a;--t:#f7e0dc}
.folder.cert{border:2px dashed #d7b56d;border-radius:14px;background:repeating-linear-gradient(45deg,#fffaf0,#fffaf0 10px,#fff4df 10px,#fff4df 20px);align-items:flex-start}
.seal{width:62px;height:62px;border-radius:50%;display:grid;place-items:center;margin-bottom:12px;background:radial-gradient(circle,#ffd77a 0 55%,#e9a92a 56% 100%);box-shadow:0 0 0 4px #fff4df,0 0 0 6px #e9a92a;animation:spinslow 18s linear infinite}
.seal .material-symbols-outlined{font-size:32px;color:#7a4b00;animation:spinslow 18s linear infinite reverse}
@keyframes spinslow{to{transform:rotate(360deg)}}

/* ── hình thức ────────────────────────────────────────────── */
.formats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
@media(max-width:900px){.formats{grid-template-columns:1fr;max-width:480px;margin:0 auto}}
.fmt{position:relative;display:flex;flex-direction:column;padding:28px 26px 24px;border-radius:var(--r);background:var(--white);border:1.5px solid var(--line);text-align:center}
.fmt.hot{border:2px solid var(--navy2);box-shadow:6px 6px 0 var(--coral)}
.fmt h3{font-size:23px}
.fmt-sub{color:var(--coral2);font-family:'Patrick Hand',cursive;font-size:19px;margin:2px 0 14px}
.fmt ul{list-style:none;margin:0 0 22px;padding:0;display:grid;gap:9px;text-align:left;font-size:15px;color:var(--mut);flex:1}
.fmt li{position:relative;padding-left:26px}
.fmt li::before{content:"";position:absolute;left:2px;top:6px;width:13px;height:8px;border-left:2.5px solid var(--coral);border-bottom:2.5px solid var(--coral);transform:rotate(-45deg)}
.clock{width:112px;height:112px;margin:0 auto 14px;display:block}
.clock .face{fill:#f9f1e2;stroke:var(--navy);stroke-width:3}
.clock .arc{fill:none;stroke:var(--coral);stroke-width:9;stroke-linecap:round;stroke-dasharray:100;stroke-dashoffset:100;transition:stroke-dashoffset 1.3s cubic-bezier(.3,.7,.2,1) .3s;opacity:.85}
.in .clock .arc{stroke-dashoffset:0}
.clock .ticks path{stroke:var(--navy);stroke-width:2.5;stroke-linecap:round}
.clock .hand{fill:none;stroke:var(--navy);stroke-width:4;stroke-linecap:round}
.cal{position:relative;width:112px;height:112px;margin:0 auto 14px}
.cal i{position:absolute;inset:14px 14px 10px;border-radius:10px;background:#f9f1e2;border:3px solid var(--navy);transition:transform .8s cubic-bezier(.3,.7,.2,1) .3s}
.cal i:nth-child(1){transform:rotate(-12deg) translate(-4px,2px);background:#fde5da}
.cal i:nth-child(2){transform:rotate(-5deg);background:#fff}
.cal i:nth-child(3){display:flex;flex-direction:column;align-items:center;justify-content:center;border-top:14px solid var(--coral)}
.in .cal i:nth-child(1){transform:rotate(-16deg) translate(-12px,4px)}
.in .cal i:nth-child(2){transform:rotate(-8deg) translate(-6px,2px)}
.cal b{font-family:'Fraunces',serif;font-size:34px;line-height:1;color:var(--navy2)}
.cal small{font-size:12px;color:var(--mut)}
.stamp{position:absolute;top:16px;right:14px;font-family:'Patrick Hand',cursive;font-size:17px;color:var(--coral2);border:2.5px solid var(--coral2);border-radius:8px;padding:0 9px;transform:rotate(9deg);background:rgba(255,255,255,.7)}
.fmt-note{text-align:center;color:var(--mut);font-size:14.5px;margin-top:26px}

/* ── con số khoanh tròn kiểu chấm điểm ────────────────────── */
.grades{max-width:var(--max);margin:0 auto;padding:0 24px;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.grades div{display:flex;align-items:center;gap:14px;padding:16px 18px;border-radius:14px;background:var(--white);border:1.5px dashed var(--line)}
.grades b{flex:none;position:relative;width:64px;height:64px;display:grid;place-items:center;font-family:'Patrick Hand',cursive;font-size:40px;font-weight:400;color:var(--coral2)}
.grades b::after{content:"";position:absolute;inset:2px;border:2.5px solid var(--coral);border-radius:52% 48% 55% 45%/48% 55% 45% 52%;transform:rotate(-8deg)}
.grades span{font-size:14px;color:var(--mut);line-height:1.4}
@media(max-width:900px){.grades{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.grades{grid-template-columns:1fr}}

/* ── quy trình: đường bút chì nối 4 bước ──────────────────── */
.path{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative}
.path::before{content:"";position:absolute;top:28px;left:8%;right:8%;border-top:3px dashed rgba(23,64,92,.35);z-index:0}
.path li{position:relative;z-index:1;text-align:center;padding:0 6px}
.path .num{width:58px;height:58px;margin:0 auto 14px;display:grid;place-items:center;border-radius:50%;background:var(--paper);border:3px solid var(--navy);font-family:'Fraunces',serif;font-weight:800;font-size:24px;color:var(--navy2);transition:background .4s .3s,color .4s .3s,transform .4s .3s}
.path li.in .num{background:var(--coral);border-color:var(--navy2);color:#fff;transform:rotate(-6deg)}
.path h3{font-size:19px;margin-bottom:6px}
.path p{font-size:14.5px;color:var(--mut)}
@media(max-width:860px){.path{grid-template-columns:1fr;gap:18px;max-width:520px;margin:0 auto}.path::before{top:10px;bottom:10px;left:28px;right:auto;border-top:0;border-left:3px dashed rgba(23,64,92,.35)}.path li{text-align:left;display:grid;grid-template-columns:58px 1fr;gap:0 16px;padding:0}.path .num{margin:0;grid-row:span 2}}

/* ── gần đây: trang nhật ký dán băng keo ─────────────────── */
.recent{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
@media(max-width:860px){.recent{grid-template-columns:1fr}}
.diary{position:relative;padding:34px 30px 28px;background:#fffef9;border:1.5px solid var(--line);border-radius:4px;box-shadow:0 26px 40px -30px rgba(15,44,64,.6);transform:rotate(-1.3deg);background-image:linear-gradient(transparent 33px,rgba(23,64,92,.08) 34px);background-size:100% 34px;background-position:0 18px}
.diary.reveal.in{transform:rotate(-1.3deg)}
.tape{position:absolute;width:92px;height:24px;background:rgba(244,185,66,.5);top:-11px}
.t1{left:22px;transform:rotate(-7deg)}.t2{right:22px;transform:rotate(6deg)}
.diary-date{font-family:'Patrick Hand',cursive;font-size:22px;color:var(--coral2)}
.diary h3{font-size:24px;margin:2px 0 10px}
.diary p{color:var(--ink);font-size:16px}
.diary-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.diary-tags span{font-size:13px;padding:3px 10px;border-radius:99px;background:#e6eef1;color:var(--navy);font-weight:500}
.recent-side h2{margin:4px 0 14px}
.recent-side p{color:var(--mut);margin-bottom:20px}

/* ── FAQ ──────────────────────────────────────────────────── */
.faq{max-width:820px;margin:0 auto;display:grid;gap:12px}
details{border-radius:12px;background:var(--white);border:1.5px solid var(--line);padding:0 20px;transition:border-color .2s}
details[open]{border-color:var(--navy)}
summary{cursor:pointer;list-style:none;padding:16px 0;font-weight:700;color:var(--navy2);display:flex;justify-content:space-between;gap:14px;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:24px;line-height:1;color:var(--coral);transition:transform .25s}
details[open] summary::after{transform:rotate(45deg)}
details p{padding:0 0 16px;color:var(--mut);font-size:15px}

/* ── form lead ────────────────────────────────────────────── */
.contact{padding-top:20px}
.contact-box{display:grid;grid-template-columns:.9fr 1.1fr;gap:38px;padding:40px;border-radius:20px;background:var(--board);color:var(--chalk);box-shadow:8px 8px 0 var(--coral);border:2px solid var(--navy2)}
@media(max-width:880px){.contact-box{grid-template-columns:1fr;padding:28px 20px;box-shadow:5px 5px 0 var(--coral)}}
.contact-box .eyebrow{color:#ffcf7a}
.contact-box h2{color:#fff;font-size:clamp(23px,2.6vw,31px);margin:2px 0 14px}
.contact-box mark.hl{background-image:linear-gradient(transparent 62%,rgba(232,96,60,.75) 62%,rgba(232,96,60,.75) 92%,transparent 92%)}
.contact-text p{color:rgba(243,239,228,.8);margin-bottom:10px}
.contact-alt{display:flex;align-items:center;gap:6px;margin-top:16px;font-size:15px}
.contact-alt .material-symbols-outlined{color:#ffcf7a}
.contact-alt a{color:#ffcf7a;font-weight:700;border-bottom:1.5px dashed #ffcf7a}
form{display:grid;gap:10px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media(max-width:520px){.row2{grid-template-columns:1fr}}
input,select,textarea{width:100%;min-width:0;font:inherit;font-size:15px;color:var(--ink);background:var(--white);border:2px solid transparent;border-radius:10px;padding:12px 14px;outline:none;transition:border-color .2s,box-shadow .2s}
input::placeholder,textarea::placeholder{color:#8a8f96}
input:focus,select:focus,textarea:focus{border-color:var(--mustard);box-shadow:0 0 0 4px rgba(244,185,66,.3)}
textarea{resize:vertical}
form .btn-pri{justify-content:center;border-color:#fff;box-shadow:4px 4px 0 #0b1e2b}
.sis-lead-error{color:#ffb4a2;font-size:14px}
.sis-lead-ok,.sis-lead-thanks{color:#fff}

/* ── footer & CTA dính ───────────────────────────────────── */
.foot{max-width:var(--max);margin:30px auto 0;padding:28px 24px 110px;display:flex;justify-content:space-between;gap:16px 30px;flex-wrap:wrap;font-size:14px;color:var(--mut);border-top:2px dashed var(--line)}
.foot b{color:var(--navy2)}
.foot-nav{display:flex;flex-wrap:wrap;gap:6px 18px;margin-top:6px}
.foot a{color:var(--coral2);font-weight:500}
.foot a:hover{text-decoration:underline}
.foot-links{display:flex;gap:16px;flex-wrap:wrap;align-items:flex-start}
.sticky-cta{position:fixed;left:0;right:0;bottom:0;z-index:60;display:none;align-items:center;justify-content:space-between;gap:12px;padding:11px 16px;background:rgba(251,246,236,.96);backdrop-filter:blur(10px);border-top:2px solid var(--navy2);transition:transform .3s}
.sticky-cta span{display:flex;flex-direction:column;line-height:1.25}
.sticky-cta b{color:var(--navy2);font-size:15.5px}
.sticky-cta small{color:var(--mut);font-size:12.5px}
.sticky-cta.hide{transform:translateY(110%)}
@media(max-width:860px){.sticky-cta{display:flex}}
@media(min-width:861px){.foot{padding-bottom:40px}}
/* Landing dịch vụ không có giỏ: ẩn thanh giỏ của lead.js */
.sis-cart-bar{display:none!important}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  mark.hl{background-size:100% 100%}
  .chalk-line path{stroke-dashoffset:0}
  .clock .arc{stroke-dashoffset:0}
}