/* ===== Biến màu & nền tảng ===== */
:root{--card:#fff;--head:#0b1f44;--chip:#e4e4ea;--logo1:#1f0f4d;--logo2:#0b3bff;--navy:#0b1f44;--blue:#1d4ed8;--sky:#38bdf8;--cyan:#06b6d4;--bg:#f3f7fc;--ink:#0f172a;--mut:#56657f;--line:#dbe5f3;--r:14px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{font-family:"Segoe UI",Roboto,"Helvetica Neue",Arial,system-ui,sans-serif;background:var(--bg);color:var(--ink);line-height:1.65;overflow-x:hidden}
a{color:inherit;text-decoration:none}
:focus-visible{outline:3px solid var(--sky);outline-offset:2px}
.wrap{width:min(1120px,92%);margin:0 auto}
section{padding:76px 0}
h2{font-size:clamp(1.6rem,3.5vw,2.1rem);color:var(--head);line-height:1.25;margin-bottom:8px}
.lead{color:var(--mut);max-width:62ch;margin-bottom:30px}
.badge{display:inline-block;font-size:.78rem;padding:2px 10px;border-radius:99px;background:#e0f2fe;color:#075985;margin-bottom:12px}
.btn{display:inline-block;padding:11px 22px;border-radius:10px;font-weight:600;border:2px solid var(--cyan);background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;cursor:pointer;font:inherit;font-weight:600;transition:transform .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(29,78,216,.25)}
.btn.ghost{background:transparent;color:var(--blue);border-color:var(--blue)}
.btn.sm{padding:6px 14px;font-size:.88rem}
/* ===== Thanh trên cùng: [☰ logo] ... [sáng/tối, tìm kiếm] ===== */
header{position:sticky;top:0;z-index:50;background:var(--card);box-shadow:0 2px 6px rgba(0,0,0,.18)}
.bar{display:flex;align-items:center;gap:6px;height:62px}
/* Logo "MINH TRÍ": chữ Bungee, dấu sắc là thanh xiên, chữ nhỏ LcSt màu cam */
.logo{position:relative;display:inline-block;font-family:"Bungee","Arial Black",Impact,sans-serif;font-size:clamp(1.2rem,5.2vw,1.75rem);line-height:1;padding-top:12px;margin-right:2.2em;white-space:nowrap}
.l1{color:var(--logo1)}.l2{color:var(--logo2)}
.i{position:relative;display:inline-block}
.i::before{content:"";position:absolute;left:-.02em;top:-.2em;width:.62em;height:.17em;background:currentColor;border-radius:.05em;transform:rotate(-16deg)}
.lc{position:absolute;right:-1.9em;top:-.2em;font:italic 700 .5em/1 "Trebuchet MS",Verdana,sans-serif;color:#f26b1d;transform:rotate(-14deg)}
.rt{margin-left:auto;display:flex;gap:10px}
.ic{width:44px;height:44px;border-radius:50%;border:0;background:var(--chip);color:var(--ink);display:grid;place-items:center;cursor:pointer;transition:filter .2s}
.ic:hover{filter:brightness(.93)}
.ic svg{width:22px;height:22px}
a.ic{font-weight:700;font-size:1.1rem}
@media(max-width:420px){.ic{width:40px;height:40px}.rt{gap:6px}.logo{margin-right:1.5em}}
@media(max-width:340px){#menuBtn{width:36px}.logo{font-size:1.05rem}}
.sun{display:none}
html[data-theme=dark] .sun{display:block}html[data-theme=dark] .moon{display:none}
/* Điện thoại: nút 3 gạch (bấm thành X) + menu thả xuống */
#menuBtn{background:none;border:0;color:var(--ink);width:44px;height:44px;display:grid;place-items:center;cursor:pointer;flex:none}
#menuBtn svg{width:30px;height:30px}
#menuBtn path{fill:none;stroke:currentColor;stroke-width:3;stroke-linecap:round;transform-box:fill-box;transform-origin:center;transition:transform .3s,opacity .2s}
#menuBtn[aria-expanded=true] .b1{transform:translateY(8px) rotate(45deg)}
#menuBtn[aria-expanded=true] .b2{opacity:0;transform:scaleX(0)}
#menuBtn[aria-expanded=true] .b3{transform:translateY(-8px) rotate(-45deg)}
nav{position:absolute;top:100%;left:0;width:min(320px,100%);background:var(--card);box-shadow:0 8px 16px rgba(0,0,0,.18);display:none;padding:8px;border-radius:0 0 14px 0}
nav.open{display:block}
nav ul{list-style:none}
nav a{display:block;color:var(--ink);padding:11px 14px;border-radius:8px;font-weight:600;transition:.2s}
nav a:hover{background:rgba(56,189,248,.18)}
nav a.active{background:var(--cyan);color:#06243a}
/* Máy tính: hàng 2 là menu ngang kiểu VNNIC, vuốt ngang được nếu cửa sổ hẹp */
@media(min-width:900px){
 html{scroll-padding-top:112px}
 #menuBtn{display:none}
 nav{position:relative;display:block;width:auto;padding:0;border-radius:0;box-shadow:none;background:none;overflow-x:auto;border-top:1px solid var(--line);scrollbar-width:none}
 nav::-webkit-scrollbar{display:none}
 nav ul{display:flex;gap:2px;width:max-content;margin:0 auto;padding:0 10px}
 nav a{position:relative;padding:11px 14px;font-size:.93rem;border-radius:0;white-space:nowrap}
 nav a:hover,nav a.active{background:none;color:var(--blue)}
 nav a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:3px;border-radius:3px;background:linear-gradient(90deg,var(--blue),var(--cyan))}
}
.sp{position:absolute;top:100%;left:0;right:0;background:var(--card);box-shadow:0 8px 16px rgba(0,0,0,.18);padding:12px 0}
#sq{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:10px;font:inherit;background:var(--bg);color:var(--ink)}
#sr{list-style:none;margin-top:8px;max-height:50vh;overflow:auto}
#sr button{display:block;width:100%;text-align:left;background:none;border:0;padding:10px;border-radius:8px;font:inherit;color:var(--ink);cursor:pointer}
#sr button:hover{background:rgba(56,189,248,.18)}
#sr small{display:block;color:var(--mut)}
#sr .none{padding:10px;color:var(--mut)}
/* ===== Trang chủ ===== */
#home{background:linear-gradient(135deg,#0b1f44 0%,#12439c 60%,#0e7490 100%);color:#fff;padding:90px 0 80px}
.hero{display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:center}
.hero h1{font-size:clamp(2rem,5.5vw,3.4rem);line-height:1.15;margin:8px 0 14px}
.hero .sub{font-size:1.15rem;color:#bfe6fb}
.hero p{color:#d6e4fa;max-width:56ch;margin:14px 0 26px}
.hero .btn.ghost{color:#fff;border-color:#9cc3f5}
@media(max-width:820px){.hero{grid-template-columns:1fr}}
/* ===== Đồng hồ tròn thu nhỏ & Lịch thu gọn có mũi tên xổ xuống ===== */
.clk{--sec:#06b6d4;display:flex;align-items:center;gap:12px;text-align:left}
.dial{width:86px;height:86px;flex:none;color:var(--ink)}
.dial .bg{fill:currentColor;fill-opacity:.06;stroke:currentColor;stroke-opacity:.45;stroke-width:1.5}
.dial .tk{stroke:currentColor;stroke-opacity:.45;stroke-width:.8}
.dial .tk.mj{stroke-opacity:.9;stroke-width:1.6}
.dial text{fill:currentColor;font:600 8px "Segoe UI",Arial,sans-serif;text-anchor:middle;dominant-baseline:central}
.dial .hh,.dial .mn{stroke:currentColor;stroke-linecap:round}
.dial .hh{stroke-width:3.4}.dial .mn{stroke-width:2.4}
.dial .sc{stroke:var(--sec);stroke-width:1.2;stroke-linecap:round}
.dial .dot{fill:var(--sec)}
.ck-time{display:block;font-size:1.2rem;font-weight:700;line-height:1.1;letter-spacing:.03em;font-variant-numeric:tabular-nums}
.ck-time i{font-style:normal;color:var(--sec);animation:bl 1s steps(1) infinite}
.ck-date{margin-top:2px;color:var(--mut);font-size:.78rem}
.ck-tz{color:var(--mut);font-size:.72rem}
.ck-name{font-weight:700;color:var(--head);margin-bottom:2px}

/* Thẻ Đồng hồ + Lịch ở trang chủ (được thu nhỏ lại và đặt góc phải) */
.tw{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);border-radius:16px;padding:14px;color:#fff;backdrop-filter:blur(6px);box-shadow:0 15px 30px rgba(2,10,30,.25);width:100%;max-width:320px;justify-self:end}
.tw-header{display:flex;align-items:center;gap:8px}
.tzs{width:100%;padding:8px 10px;border-radius:10px;border:1px solid rgba(255,255,255,.3);background:rgba(6,20,46,.55);color:#fff;font:inherit;font-size:.85rem;font-weight:600;cursor:pointer}
.tzs option{color:#0f172a;background:#fff}

.tw .clk{--sec:#67e8f9;margin-top:10px;padding-bottom:10px;border-bottom:1px solid rgba(255,255,255,.2)}
.tw .dial{width:80px;height:80px;color:#fff}
.tw .ck-time{color:#fff;font-size:1.3rem}
.tw .ck-name{display:none}.tw .ck-date{color:#d6e4fa}.tw .ck-tz{color:#9cc3f5}

/* Vùng chứa lịch ẩn/hiện mượt mà */
.cal-collapse-wrap{overflow:hidden;max-height:400px;opacity:1;transition:max-height .35s ease,opacity .3s ease,margin-top .3s ease;margin-top:10px}
.cal-collapse-wrap.collapsed{max-height:0;opacity:0;margin-top:0}

.tw #cal{margin-top:0}
.tw .cal-t{color:#fff;font-size:.9rem}
.tw .cb{background:rgba(255,255,255,.16);color:#fff;width:30px;height:30px;font-size:1.1rem}
.tw .cal-g span{padding:3px 0;font-size:.78rem}
.tw .cal-g .wd{color:#9cc3f5}.tw .cal-g .we{color:#fda4af}
.tw .cal-now{margin-top:8px;padding:5px 12px;font-size:.8rem}
@media(max-width:820px){.tw{justify-self:stretch;max-width:none}}

/* Lịch tiêu chuẩn */
.cal-h{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.cb{width:34px;height:34px;border-radius:50%;border:0;background:var(--chip);color:var(--ink);font-size:1.2rem;cursor:pointer}
.cal-t{font-weight:700;color:var(--head)}
.cal-g{display:grid;grid-template-columns:repeat(7,1fr);gap:3px;text-align:center}
.cal-g span{padding:6px 0;border-radius:6px;font-size:.85rem}
.cal-g .wd{color:var(--mut);font-weight:600;font-size:.75rem}
.cal-g .we{color:#e11d48}
.cal-g .td{background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;font-weight:700}
.cal-now{margin-top:10px}
@keyframes bl{50%{opacity:.25}}
/* ===== Giới thiệu ===== */
.about{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.panel h3{color:var(--head);margin-bottom:10px}
.panel li{margin-left:18px;margin-bottom:6px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.chips span{background:#e8f1ff;color:#1e3a8a;padding:5px 12px;border-radius:99px;font-size:.88rem}
@media(max-width:820px){.about{grid-template-columns:1fr}}
/* ===== Lưới thẻ dùng chung ===== */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(11,31,68,.1)}
.card .body{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1}
.card h3{font-size:1.05rem;color:var(--head);line-height:1.35}
.card p{color:var(--mut);font-size:.93rem;flex:1}
.tag{font-size:.8rem;color:#0e7490;font-weight:600}
.meta{display:flex;justify-content:space-between;align-items:center;font-size:.82rem;color:var(--mut)}
.fmt{background:var(--navy);color:#fff;padding:1px 9px;border-radius:6px;font-weight:600}
.act{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.nofile{font-size:.88rem;color:#9a3412;background:#ffedd5;padding:5px 12px;border-radius:8px}
.thumb{height:120px;background:linear-gradient(135deg,hsl(var(--h,210) 70% 28%),hsl(calc(var(--h,210) + 35) 80% 50%));display:flex;align-items:flex-end;padding:10px 14px;color:#fff;font-size:.82rem;font-weight:600}
/* ===== Bộ lọc tài liệu ===== */
.tools{display:grid;grid-template-columns:2fr 1.4fr 1fr;gap:12px;margin-bottom:12px}
.tools input,.tools select{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:10px;font:inherit;background:var(--card);color:var(--ink)}
@media(max-width:700px){.tools{grid-template-columns:1fr}}
#count{color:var(--mut);font-size:.92rem;margin-bottom:16px}
.empty{grid-column:1/-1;text-align:center;padding:40px 16px;background:var(--card);border:1px dashed #9db4d9;border-radius:var(--r);color:var(--mut)}
#more{display:block;margin:28px auto 0}
/* ===== Liên hệ ===== */
.contact{display:grid;grid-template-columns:1fr 1.2fr;gap:28px}
@media(max-width:820px){.contact{grid-template-columns:1fr}}
.contact li{list-style:none;margin-bottom:10px;overflow-wrap:anywhere}
form label{display:block;font-weight:600;font-size:.9rem;margin:12px 0 4px}
form input,form textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;font:inherit;background:var(--card);color:var(--ink)}
form .btn{margin-top:16px}
.note{font-size:.85rem;color:var(--mut);margin-top:10px}
/* ===== Liên kết liên hệ (mỗi nền tảng một logo) ===== */
.links{list-style:none}
.links li{margin:0 0 6px}
.links a{display:flex;align-items:center;gap:12px;padding:8px;border-radius:12px;transition:background .2s;overflow-wrap:anywhere}
.links a:hover{background:#eef5ff}
.links svg{width:38px;height:38px;flex:none}
.links small{display:block;color:var(--mut);line-height:1.3}
/* ===== Footer động: nền gradient chuyển màu, sóng, hình khối bay ===== */
.ft{position:relative;overflow:hidden;text-align:center;color:#fff;padding:60px 0 110px;background:linear-gradient(120deg,#06142e,#0b3a8f,#0e7490,#0b3a8f,#06142e);background-size:300% 300%;animation:gs 16s ease infinite}
.ft-in{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:22px}
.ft-in p{max-width:46ch;color:#d6e4fa}
.logo.f{font-size:clamp(1.6rem,7vw,2.2rem);margin-right:0}
.logo.f .l1{color:#fff}.logo.f .l2{color:#67e8f9}
.soc{list-style:none;display:flex;flex-wrap:wrap;justify-content:center;gap:12px}
.soc a{display:grid;place-items:center;width:46px;height:46px;border-radius:12px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);color:#fff;transition:transform .25s,background .25s,box-shadow .25s}
.soc a:hover{transform:translateY(-5px);background:rgba(255,255,255,.28);box-shadow:0 10px 20px rgba(0,0,0,.25)}
.soc svg{width:22px;height:22px}
.sh{position:absolute;inset:0;pointer-events:none}
.sh i{position:absolute;border:2px solid rgba(255,255,255,.3);animation:fl 9s ease-in-out infinite}
.sq{border-radius:6px}.ci{border-radius:50%}
.s1{left:10%;top:16%;width:30px;height:30px}
.s2{right:12%;top:12%;width:44px;height:44px;animation-duration:12s!important;animation-delay:-3s!important}
.s3{right:30%;bottom:34%;width:22px;height:22px;animation-delay:-5s!important}
.c1{left:24%;top:34%;width:26px;height:26px;animation-delay:-2s!important}
.c2{right:6%;bottom:30%;width:60px;height:60px;animation-duration:14s!important}
.c3{left:5%;bottom:36%;width:48px;height:48px;animation-delay:-6s!important}
.sh svg{position:absolute;left:0;bottom:0;width:200%;height:90px;animation:wv 14s linear infinite}
.sh svg+svg{height:70px;animation-duration:22s;animation-direction:reverse}
.ft.rv .ft-in>*{opacity:0;transform:translateY(18px);transition:opacity .7s,transform .7s}
.ft.rv.in .ft-in>*{opacity:1;transform:none}
.ft-in>:nth-child(2){transition-delay:.12s!important}.ft-in>:nth-child(3){transition-delay:.24s!important}
.fb{background:#06142e;color:#b6c8e6;font-size:.88rem;padding:18px 0}
.fb .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px 28px;text-align:left}
.fl a{margin-right:18px;color:#fff;opacity:.85;transition:color .2s,opacity .2s}
.fl a:last-child{margin-right:0}
.fl a:hover{color:#67e8f9;opacity:1}
@keyframes gs{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
@keyframes fl{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-22px) rotate(90deg)}}
@keyframes wv{to{transform:translateX(-50%)}}
#toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(30px);background:var(--navy);color:#fff;padding:12px 20px;border-radius:10px;max-width:90%;opacity:0;pointer-events:none;transition:.3s;z-index:99;text-align:center}
#toast.show{opacity:1;transform:translateX(-50%)}
/* ===== Giao diện tối ===== */
html[data-theme=dark]{color-scheme:dark;--bg:#0b1220;--card:#121c31;--ink:#e6edf7;--mut:#9fb0cc;--line:#25344f;--head:#e6edf7;--chip:#26334d;--logo1:#c9b8ff;--logo2:#5b86ff}
@media(min-width:900px){html[data-theme=dark] nav a:hover,html[data-theme=dark] nav a.active{color:#7dd3fc}}
html[data-theme=dark] .badge{background:#0c4a6e;color:#bae6fd}
html[data-theme=dark] .chips span{background:#1b2d55;color:#bcd2ff}
html[data-theme=dark] .tag{color:#67e8f9}
html[data-theme=dark] .links a:hover{background:#1b2a47}
html[data-theme=dark] .btn.ghost{color:#7dd3fc;border-color:#7dd3fc}
html[data-theme=dark] .nofile{background:#431f0b;color:#fdba74}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}
/* ===== Tùy chỉnh Đồng hồ thu nhỏ & Nút xổ lịch ===== */
.clk{--sec:#06b6d4;display:flex;align-items:center;gap:12px;text-align:left}
.dial{width:86px;height:86px;flex:none;color:var(--ink)}
.tw{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);border-radius:16px;padding:14px;color:#fff;backdrop-filter:blur(6px);box-shadow:0 15px 30px rgba(2,10,30,.25);width:100%;max-width:320px;justify-self:end}
.tw-header{display:flex;align-items:center;gap:8px}
.tzs{width:100%;padding:8px 10px;border-radius:10px;border:1px solid rgba(255,255,255,.3);background:rgba(6,20,46,.55);color:#fff;font:inherit;font-size:.85rem;font-weight:600;cursor:pointer}
.tzs option{color:#0f172a;background:#fff}

.cal-toggle-btn{background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.3);color:#fff;width:36px;height:36px;border-radius:10px;display:grid;place-items:center;cursor:pointer;flex:none;transition:background .2s,transform .3s}
.cal-toggle-btn:hover{background:rgba(255,255,255,.3)}
.cal-toggle-btn svg{transition:transform .3s ease}
.tw-header button[aria-expanded="false"] svg{transform:rotate(-90deg)}

.tw .clk{--sec:#67e8f9;margin-top:10px;padding-bottom:10px;border-bottom:1px solid rgba(255,255,255,.2)}
.tw .dial{width:80px;height:80px;color:#fff}
.tw .ck-time{color:#fff;font-size:1.3rem}
.tw .ck-name{display:none}.tw .ck-date{color:#d6e4fa}.tw .ck-tz{color:#9cc3f5}

.cal-collapse-wrap{overflow:hidden;max-height:400px;opacity:1;transition:max-height .35s ease,opacity .3s ease,margin-top .3s ease;margin-top:10px}
.cal-collapse-wrap.collapsed{max-height:0;opacity:0;margin-top:0}
.tw #cal{margin-top:0}
.tw .cal-t{color:#fff;font-size:.9rem}
.tw .cb{background:rgba(255,255,255,.16);color:#fff;width:30px;height:30px;font-size:1.1rem}
.tw .cal-g span{padding:3px 0;font-size:.78rem}
.tw .cal-g .wd{color:#9cc3f5}.tw .cal-g .we{color:#fda4af}
.tw .cal-now{margin-top:8px;padding:5px 12px;font-size:.8rem}
@media(max-width:820px){.tw{justify-self:stretch;max-width:none}}

/* ===== Nút quay về đầu trang ở góc phải dưới cùng ===== */
#backToTopBtn {
 position: fixed;
 right: 24px;
 bottom: 24px;
 z-index: 99;
 width: 44px;
 height: 44px;
 border-radius: 50%;
 background: linear-gradient(135deg, var(--blue), var(--cyan));
 color: #fff;
 display: grid;
 place-items: center;
 box-shadow: 0 6px 16px rgba(0,0,0,0.25);
 opacity: 0;
 visibility: hidden;
 transform: translateY(12px);
 transition: opacity .3s ease, visibility .3s ease, transform .3s ease, background .2s;
}
#backToTopBtn.show {
 opacity: 1;
 visibility: visible;
 transform: translateY(0);
}
#backToTopBtn:hover {
 filter: brightness(1.1);
 transform: translateY(-2px);
}
/* Điều chỉnh bố cục thẻ đồng hồ và nút mũi tên */
.tw{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);border-radius:16px;padding:14px;color:#fff;backdrop-filter:blur(6px);box-shadow:0 15px 30px rgba(2,10,30,.25);width:100%;max-width:320px;justify-self:end}
.tzs{width:100%;padding:8px 10px;border-radius:10px;border:1px solid rgba(255,255,255,.3);background:rgba(6,20,46,.55);color:#fff;font:inherit;font-size:.85rem;font-weight:600;cursor:pointer;margin-bottom:10px}
.tzs option{color:#0f172a;background:#fff}

.tw-body{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:4px;padding-bottom:10px;border-bottom:1px solid rgba(255,255,255,.2)}
.tw .clk{--sec:#67e8f9;margin-top:0}
.tw .dial{width:80px;height:80px;color:#fff}
.tw .ck-time{color:#fff;font-size:1.3rem}
.tw .ck-name{display:none}.tw .ck-date{color:#d6e4fa}.tw .ck-tz{color:#9cc3f5}

/* Nút mũi tên xổ lịch ngang hàng với phần chữ */
.cal-toggle-btn{background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.3);color:#fff;width:30px;height:30px;border-radius:8px;display:grid;place-items:center;cursor:pointer;flex:none;transition:background .2s,transform .3s;margin-top: 4px !important}
.cal-toggle-btn:hover{background:rgba(255,255,255,.3)}
.cal-toggle-btn svg{transition:transform .3s ease}
.tw-body button[aria-expanded="false"] svg{transform:rotate(-90deg)}

.cal-collapse-wrap{overflow:hidden;max-height:400px;opacity:1;transition:max-height .35s ease,opacity .3s ease,margin-top .3s ease;margin-top:10px}
.cal-collapse-wrap.collapsed{max-height:0;opacity:0;margin-top:0}
.tw #cal{margin-top:0}
.tw .cal-t{color:#fff;font-size:.9rem}
.tw .cb{background:rgba(255,255,255,.16);color:#fff;width:30px;height:30px;font-size:1.1rem}
.tw .cal-g span{padding:3px 0;font-size:.78rem}
.tw .cal-g .wd{color:#9cc3f5}.tw .cal-g .we{color:#fda4af}
.tw .cal-now{margin-top:8px;padding:5px 12px;font-size:.8rem}
@media(max-width:820px){.tw{justify-self:stretch;max-width:none}}

/* ===== Nút GHI CHÚ + hộp thoại (thêm mới) ===== */
#home{position:relative}
.nt{position:absolute;right:max(4%,calc((100% - 1120px) / 2));bottom:20px;z-index:5}
.nt-main{display:inline-flex;align-items:center;justify-content:center;height:48px;min-width:48px;padding:0 14px;border:0;border-radius:99px;background:#fff;color:#0b1f44;font:inherit;font-weight:700;font-size:.9rem;letter-spacing:.06em;cursor:pointer;overflow:hidden;box-shadow:0 8px 20px rgba(2,10,30,.3);transition:transform .2s,box-shadow .2s,padding .3s ease}
.nt-main:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(2,10,30,.35)}
.nt-main svg{flex:none;width:20px;height:20px;transition:transform .35s cubic-bezier(.3,1.6,.5,1)}
.nt.open .nt-main svg{transform:rotate(135deg)}
.nt-label{max-width:0;margin-left:0;opacity:0;overflow:hidden;white-space:nowrap;transition:max-width .35s ease,margin-left .35s ease,opacity .25s ease}
.nt-main:focus-visible{padding:0 20px 0 14px}
.nt-main:focus-visible .nt-label{max-width:100px;margin-left:8px;opacity:1}
@media (hover:hover){
  .nt-main:hover{padding:0 20px 0 14px}
  .nt-main:hover .nt-label{max-width:100px;margin-left:8px;opacity:1}
}.nt-act{position:absolute;right:0;bottom:calc(100% + 10px);display:flex;flex-direction:column;align-items:flex-end;gap:8px;pointer-events:none}
.nt-act button{display:inline-flex;align-items:center;gap:8px;white-space:nowrap;padding:10px 16px;border:1px solid rgba(255,255,255,.35);border-radius:99px;background:rgba(11,31,68,.88);backdrop-filter:blur(6px);color:#fff;font:inherit;font-weight:600;font-size:.88rem;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(14px) scale(.85);transform-origin:right bottom;transition:opacity .25s,visibility .25s,transform .35s cubic-bezier(.3,1.5,.5,1),background .2s}
.nt-act button svg{width:18px;height:18px}
.nt-act .del{background:rgba(190,18,60,.9)}
.nt.open .nt-act button{opacity:1;visibility:visible;transform:none;pointer-events:auto}
.nt.open .nt-act button:nth-child(1){transition-delay:.14s}
.nt.open .nt-act button:nth-child(2){transition-delay:.07s}
.nt-act button:hover{background:#1d4ed8}
.nt-act .del:hover{background:#be123c}
.nm{position:fixed;inset:0;z-index:200;display:grid;place-items:center;padding:16px;background:rgba(2,10,30,.55);opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s}
.nm.show{opacity:1;visibility:visible}
.nm-box{background:var(--card);color:var(--ink);width:min(520px,100%);max-height:88vh;display:flex;flex-direction:column;border-radius:18px;box-shadow:0 24px 60px rgba(0,0,0,.4);transform:translateY(20px) scale(.96);transition:transform .3s cubic-bezier(.3,1.4,.5,1)}
.nm.show .nm-box{transform:none}
.nm-h{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid var(--line)}
.nm-h h3{font-size:1.1rem;color:var(--head)}
.nm-x{width:36px;height:36px;border-radius:50%;border:0;background:var(--chip);color:var(--ink);font-size:1rem;cursor:pointer}
.nm-b{padding:16px 18px;overflow-y:auto}
.nm-ed textarea{width:100%;min-height:110px;resize:vertical;padding:12px;border:1px solid var(--line);border-radius:12px;font:inherit;background:var(--bg);color:var(--ink)}
.nm-ed .row{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:10px 0 6px}
.nm-ed small{color:var(--mut)}
.nm-ok{color:#059669}.nm-err{color:#e11d48}
html[data-theme=dark] .nm-ok{color:#6ee7b7}html[data-theme=dark] .nm-err{color:#fda4af}
.nm-tools{text-align:right;margin:10px 0}
.nm-list{list-style:none;display:grid;gap:10px;margin-top:10px}
.nm-it{border:1px solid var(--line);border-radius:12px;padding:12px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:6px 12px;align-items:start;background:var(--bg);animation:nin .3s ease;transition:opacity .25s,transform .25s}
.nm-it time{font-size:.78rem;font-weight:600;color:var(--mut)}
.nm-it p{white-space:pre-wrap;overflow-wrap:anywhere}
.nm-it.out{opacity:0;transform:translateX(30px)}
.nm-empty{color:var(--mut);text-align:center;padding:18px 0}
.nm-it time,.nm-it p{grid-column:1}
.nm-it .rm{grid-column:2;grid-row:1 / span 2;align-self:center}
.rm{justify-self:end;border:1px solid #e11d48;color:#e11d48;background:none;border-radius:8px;padding:4px 12px;font:inherit;font-size:.85rem;font-weight:600;cursor:pointer;transition:background .2s,color .2s}
.rm:hover{background:#e11d48;color:#fff}
.nm[data-mode=create] .rm,.nm:not([data-mode=delete]) .nm-tools{display:none}
.nm[data-mode=create] .nm-it{grid-template-columns:minmax(0,1fr)}
.nm:not([data-mode=create]) .nm-ed{display:none}
@keyframes nin{from{opacity:0;transform:translateY(-8px)}}
.avatar{
  display:block;
  width:160px;
  height:160px;
  margin:0 auto 16px;
  border-radius:50%;
  object-fit:cover;
  object-position:right top;
  border:4px solid var(--card);
  box-shadow:0 0 0 3px var(--cyan),0 8px 20px rgba(11,31,68,.2)
}