/* ===== Tuonglam Photos Live — theme ===== */
:root{
  --bg:#0d0f14; --bg2:#141821; --card:#171c27; --card2:#1e2432;
  --line:#2a3140; --text:#eef1f6; --muted:#9aa4b6;
  --brand:#6d8bff; --brand2:#a06bff; --accent:#28d69a;
  --danger:#ff5d6c; --warn:#ffb454;
  --radius:14px; --shadow:0 8px 30px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:'Segoe UI',system-ui,-apple-system,Roboto,Arial,sans-serif;
  background:radial-gradient(1200px 600px at 80% -10%,rgba(109,139,255,.12),transparent),
             radial-gradient(900px 500px at 0% 0%,rgba(160,107,255,.10),transparent),var(--bg);
  color:var(--text); line-height:1.55; min-height:100vh;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
code{background:#0b0e14;border:1px solid var(--line);padding:2px 7px;border-radius:6px;
  font-family:ui-monospace,Consolas,monospace;font-size:.92em;color:#cfe0ff}
hr{border:none;border-top:1px solid var(--line);margin:18px 0}
.container{max-width:1080px;margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}
.small{font-size:.86rem}
.center{text-align:center}
.mt{margin-top:12px}.mt-lg{margin-top:32px}

/* nav */
.nav{position:sticky;top:0;z-index:20;backdrop-filter:blur(10px);
  background:rgba(13,15,20,.75);border-bottom:1px solid var(--line)}
.nav-inner{max-width:1080px;margin:0 auto;padding:12px 20px;display:flex;
  align-items:center;justify-content:space-between}
.brand{font-weight:800;font-size:1.15rem;color:var(--text);
  display:flex;align-items:center;gap:9px}
.brand:hover{text-decoration:none;opacity:.88}
.brand-logo{width:32px;height:32px;display:block;flex:none;border-radius:22%}
.brand-name{letter-spacing:-.3px}
.brand-name span{background:linear-gradient(90deg,var(--brand),var(--brand2));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.nav nav{display:flex;gap:18px;align-items:center}
.nav nav a{color:var(--text);font-weight:600}
.pill{background:linear-gradient(90deg,var(--brand),var(--brand2));
  padding:6px 14px;border-radius:999px;color:#fff !important}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;justify-content:center;
  background:linear-gradient(90deg,var(--brand),var(--brand2));color:#fff;
  border:none;border-radius:10px;padding:10px 18px;font-weight:700;cursor:pointer;
  font-size:.95rem;transition:.15s;text-decoration:none}
.btn:hover{filter:brightness(1.08);text-decoration:none;transform:translateY(-1px)}
.btn-lg{padding:13px 26px;font-size:1.02rem}
.btn-sm{padding:7px 13px;font-size:.85rem}
.btn-block{width:100%}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--text)}
.btn.disabled,.btn:disabled{opacity:.5;cursor:not-allowed;filter:none;transform:none}
.danger{color:var(--danger);border-color:var(--danger)}

/* cards */
.card{background:linear-gradient(180deg,var(--card),var(--card2));
  border:1px solid var(--line);border-radius:var(--radius);padding:22px;
  box-shadow:var(--shadow);margin-bottom:18px}

/* flashes */
.flash-wrap{max-width:1080px;margin:14px auto 0;padding:0 20px}
.flash{padding:11px 16px;border-radius:10px;margin-bottom:8px;font-weight:600;border:1px solid}
.flash-success{background:rgba(40,214,154,.12);border-color:rgba(40,214,154,.4);color:#7ff0c8}
.flash-error{background:rgba(255,93,108,.12);border-color:rgba(255,93,108,.4);color:#ffb3ba}
.flash-info{background:rgba(109,139,255,.12);border-color:rgba(109,139,255,.4);color:#c3d0ff}

/* hero */
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;
  padding:56px 0 30px}
.hero h1{font-size:2.8rem;line-height:1.1;margin:0 0 16px;font-weight:800}
.grad{background:linear-gradient(90deg,var(--brand),var(--brand2),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:1.12rem;color:var(--muted);max-width:520px}
.hero-cta{display:flex;gap:12px;margin:24px 0 10px;flex-wrap:wrap}
.hero-art .frame{position:relative;aspect-ratio:4/3;border-radius:20px;overflow:hidden;
  border:1px solid var(--line);background:#0a0d13;box-shadow:var(--shadow);
  display:grid;grid-template-columns:1fr 1fr;grid-auto-rows:1fr;gap:6px;padding:6px}
/* Anh mau trang chu. Dat 2 lop: anh that o tren, gradient o duoi lam du phong
   -> neu chua co file anh thi van hien mau gradient, khong bao gio vo giao dien. */
.shot{border-radius:12px;background-size:cover;background-position:center;
  background-repeat:no-repeat}
.shot.s1{background-image:url("/static/img/hero1.jpg"),linear-gradient(135deg,#243049,#3a2b57)}
.shot.s2{background-image:url("/static/img/hero2.jpg"),linear-gradient(135deg,#2a4a45,#20344a)}
.shot.s3{background-image:url("/static/img/hero3.jpg"),linear-gradient(135deg,#4a2f3a,#332450)}
.shot.s4{background-image:url("/static/img/hero4.jpg"),linear-gradient(135deg,#334a2f,#204a44)}
.live-badge{position:absolute;top:12px;right:12px;background:#e5364a;color:#fff;
  font-weight:800;font-size:.72rem;padding:4px 10px;border-radius:999px;letter-spacing:.5px}

/* features */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding:24px 0 50px}
.feat .ico{font-size:1.8rem}
.feat h3{margin:10px 0 6px;font-size:1.05rem}
.feat p{color:var(--muted);font-size:.9rem;margin:0}
.tag{display:inline-block;margin-top:10px;font-size:.7rem;font-weight:800;
  background:linear-gradient(90deg,var(--brand),var(--brand2));color:#fff;
  padding:3px 9px;border-radius:999px;letter-spacing:.5px}
.tag.warn{background:var(--warn);color:#3a2600}

/* chon ngon ngu */
.lang-switch{display:inline-flex;gap:2px;border:1px solid var(--line);border-radius:8px;
  overflow:hidden;margin-left:4px}
.lang-switch a{padding:4px 9px;font-size:.74rem;font-weight:800;color:var(--muted);
  text-decoration:none;letter-spacing:.4px}
.lang-switch a:hover{color:var(--text);text-decoration:none;background:rgba(255,255,255,.05)}
.lang-switch a.on{background:linear-gradient(90deg,var(--brand),var(--brand2));color:#fff}

/* auth */
.auth-card{max-width:420px;margin:48px auto}
.auth-card h2{margin:0 0 4px}
.auth-sub{margin:0 0 20px}
.label-row{display:flex;justify-content:space-between;align-items:baseline;gap:10px}
.label-row a{font-weight:600}
.btn-google{background:#fff;color:#1f2430;border:1px solid #dadce0;font-weight:700}
.btn-google:hover{background:#f4f6fa;color:#1f2430}
.or-line{display:flex;align-items:center;gap:12px;margin:18px 0;color:var(--muted);
  font-size:.72rem;font-weight:700;letter-spacing:.08em;white-space:nowrap}
.or-line::before,.or-line::after{content:"";flex:1;height:1px;background:var(--line)}
.req{color:var(--danger)}
.code-input{letter-spacing:.5em;font-size:1.25rem;text-align:center;font-weight:800;
  font-family:ui-monospace,Consolas,monospace}
label[hidden]{display:none !important}
.auth-card h2{margin-top:0}
.stack{display:flex;flex-direction:column;gap:14px}
label{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:.9rem}
input,select{background:#0b0e14;border:1px solid var(--line);border-radius:9px;
  padding:11px 13px;color:var(--text);font-size:.95rem;font-family:inherit}
input:focus,select:focus{outline:none;border-color:var(--brand)}
input[readonly]{color:var(--muted)}

/* page head */
.page-head{display:flex;justify-content:space-between;align-items:flex-end;
  gap:16px;margin:26px 0 14px}
.page-head h2,.page-head h3{margin:0}

/* usage bar */
.usage-top{display:flex;justify-content:space-between;margin-bottom:10px;font-size:.92rem}
.bar{height:12px;background:#0b0e14;border-radius:999px;overflow:hidden;border:1px solid var(--line)}
.bar-fill{height:100%;background:linear-gradient(90deg,var(--brand),var(--accent));transition:width .4s}
.bar-fill.warn{background:linear-gradient(90deg,var(--warn),var(--danger))}

/* forms inline */
.row-form{display:flex;gap:10px}
.row-form input{flex:1}
.inline{display:flex;gap:6px;align-items:center}

/* album grid */
.album-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.album-card{display:flex;gap:14px;align-items:center;padding:16px;margin:0}
.album-card:hover{text-decoration:none;border-color:var(--brand)}
.album-thumb{width:72px;height:72px;border-radius:12px;display:grid;place-items:center;
  font-size:1.6rem;background:linear-gradient(135deg,#243049,#3a2b57);flex:none;overflow:hidden}
.album-thumb.has-img{background:#0b0e14}
.album-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.album-body h4{margin:0 0 4px}
.empty{text-align:center;padding:36px}

/* two column */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.kv{width:100%;border-collapse:collapse}
.kv th{text-align:left;color:var(--muted);font-weight:600;padding:7px 10px 7px 0;
  vertical-align:top;white-space:nowrap;font-size:.9rem}
.kv td{padding:7px 0}
.reveal{color:#7ff0c8;font-size:1rem}
.copybox{display:flex;gap:8px}
.copybox input{flex:1}

/* gallery */
.gallery-head{display:flex;justify-content:space-between;align-items:center;
  margin:20px 0;gap:16px;flex-wrap:wrap}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px}
.ph{position:relative;margin:0;border-radius:12px;overflow:hidden;background:#0b0e14;
  aspect-ratio:1;border:1px solid var(--line)}
.ph img{width:100%;height:100%;object-fit:cover;display:block;transition:.2s}
.ph:hover img{transform:scale(1.05)}
.ph.new{animation:pop .5s ease}
@keyframes pop{from{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}
/* Nut xoa anh: LUON hien san (dien thoai khong co 'hover' -> truoc day phai
   giu ảnh moi hien ra, rat mat thoi gian). Kich thuoc du lon de cham bang ngon tay. */
.ph-del button{position:absolute;top:6px;right:6px;background:rgba(0,0,0,.62);color:#fff;
  border:1px solid rgba(255,255,255,.28);border-radius:50%;width:34px;height:34px;
  cursor:pointer;font-size:1rem;line-height:1;opacity:.92;transition:.15s;
  display:flex;align-items:center;justify-content:center;
  -webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}
.ph:hover .ph-del button{opacity:1}
.ph-del button:hover,.ph-del button:active{background:var(--danger);border-color:transparent}
.live-dot{color:var(--accent);font-size:.8rem;font-weight:700;margin-left:8px}
.live-dot::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;
  background:var(--accent);margin-right:5px;animation:blink 1.4s infinite}
@keyframes blink{50%{opacity:.3}}

/* selfie + BIB search */
.find-wrap{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.bib-form{display:flex;gap:6px}
.bib-form input{width:150px;padding:9px 12px}
.face-status code{margin-right:4px}
.search-status{padding:11px 16px;border-radius:10px;margin:6px 0 14px;font-weight:600;
  background:var(--card2);border:1px solid var(--line)}
.search-status.ok{background:rgba(40,214,154,.12);border-color:rgba(40,214,154,.4);color:#7ff0c8}
.search-status.warn{background:rgba(255,180,84,.12);border-color:rgba(255,180,84,.4);color:#ffd7a1}
.ph.hidden{display:none}
.face-status{display:flex;justify-content:space-between;align-items:center;gap:14px}
.face-status h3{margin:0 0 4px}

/* QR chia se */
.share-qr{display:flex;gap:16px;align-items:center;margin-top:14px;flex-wrap:wrap}
.qr-share{width:120px;height:120px;background:#fff;padding:8px;border-radius:12px;flex:none}
.share-qr .btn{margin:6px 6px 0 0}

/* dropzone (keo tha) */
.dropzone{border:2px dashed var(--line);border-radius:14px;padding:26px 18px;text-align:center;
  cursor:pointer;transition:.18s;background:#0b0e14}
.dropzone:hover{border-color:var(--brand);background:#0d1220}
.dropzone.over{border-color:var(--accent);background:rgba(40,214,154,.08);transform:scale(1.01)}
.dropzone p{margin:4px 0}
.dz-icon{font-size:2rem}
.linklike{background:none;border:none;color:var(--brand);cursor:pointer;font:inherit;
  text-decoration:underline;padding:0}
.dz-progress{margin-top:12px}
.dz-progress .bar{height:10px}

/* lightbox */
body.lb-open{overflow:hidden}
.lb{position:fixed;inset:0;z-index:100;background:rgba(6,8,12,.96);
  display:none;grid-template-columns:auto 1fr auto;grid-template-rows:auto 1fr;
  align-items:center;gap:8px;padding:10px}
.lb.on{display:grid}
.lb-bar{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;
  padding:4px 8px;color:#fff}
.lb-count{font-weight:700;font-size:.9rem;color:var(--muted)}
.lb-actions{display:flex;gap:8px;align-items:center}
.lb-btn{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);color:#fff;
  border-radius:9px;padding:8px 14px;cursor:pointer;font-size:.88rem;font-weight:600;
  text-decoration:none;display:inline-flex;align-items:center;gap:6px}
.lb-btn:hover{background:rgba(255,255,255,.2);text-decoration:none;color:#fff}
.lb-dl{background:linear-gradient(90deg,var(--brand),var(--brand2));border-color:transparent}
.lb-stage{grid-column:2;grid-row:2;position:relative;width:100%;height:100%;
  display:grid;place-items:center;min-height:0}
.lb-img{max-width:100%;max-height:calc(100vh - 90px);object-fit:contain;border-radius:8px;
  display:block;transition:opacity .15s}
.lb.loading .lb-img{opacity:.25}
.lb-spin{display:none;position:absolute;width:38px;height:38px;border-radius:50%;
  border:3px solid rgba(255,255,255,.25);border-top-color:#fff;animation:spin .8s linear infinite}
.lb.loading .lb-spin{display:block}
@keyframes spin{to{transform:rotate(360deg)}}
.lb-nav{grid-row:2;background:rgba(255,255,255,.08);border:none;color:#fff;font-size:2rem;
  line-height:1;width:52px;height:76px;border-radius:12px;cursor:pointer;transition:.15s}
.lb-nav:hover{background:rgba(255,255,255,.2)}
.lb-prev{grid-column:1}
.lb-next{grid-column:3}
@media(max-width:640px){
  .lb-nav{width:40px;height:60px;font-size:1.5rem}
  .lb-img{max-height:calc(100vh - 80px)}
}

/* billing */
.pay-qr .qr-img{width:260px;max-width:100%;height:auto;background:#fff;padding:10px;
  border-radius:12px;margin:8px auto;display:block}
.pay-done .big{font-size:3rem}
.pay-done h3{margin:6px 0}

/* ===== BANG GIA ===== */
.pricing-hero{text-align:center;padding:26px 0 8px}
.pricing-hero h1{margin:0 0 8px;font-size:2.1rem}
.pricing-hero .lead{margin:0 auto 20px;max-width:560px}
.cycle-toggle{display:inline-flex;background:#0b0e14;border:1px solid var(--line);
  border-radius:999px;padding:5px;gap:4px;flex-wrap:wrap;justify-content:center}
.cycle-toggle a{padding:9px 20px;border-radius:999px;font-weight:700;font-size:.92rem;
  color:var(--muted);text-decoration:none;transition:.15s;white-space:nowrap}
.cycle-toggle a:hover{color:var(--text);text-decoration:none}
.cycle-toggle a.on{background:linear-gradient(90deg,var(--brand),var(--brand2));color:#fff}

.plan-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin:26px 0 40px;
  align-items:stretch}
.plan-card{position:relative;display:flex;flex-direction:column;margin:0;padding:22px 18px}
/* min-height co dinh -> gia va thong so THANG HANG giua cac the */
.plan-card h3{margin:8px 0 4px;font-size:1.1rem;letter-spacing:.3px;min-height:2.9em;
  display:flex;align-items:center;line-height:1.25}
.plan-tagline{min-height:4.2em;margin:0 0 8px;line-height:1.4}
.plan-price{min-height:5.4em;display:flex;flex-direction:column;justify-content:center}
.plan-card.featured{border-color:var(--brand);
  box-shadow:0 0 0 2px rgba(109,139,255,.35),var(--shadow)}
.ribbon{position:absolute;top:-13px;left:50%;transform:translateX(-50%);white-space:nowrap;
  background:linear-gradient(90deg,var(--brand),var(--brand2));color:#fff;
  font-size:.66rem;font-weight:800;padding:5px 14px;border-radius:999px;letter-spacing:.4px}
.plan-badge{display:inline-block;font-size:.66rem;font-weight:800;letter-spacing:.6px;
  padding:4px 10px;border-radius:999px;background:var(--line);color:var(--text)}
.plan-badge.blue{background:rgba(109,139,255,.2);color:#a9bcff}
.plan-badge.gold{background:rgba(255,180,84,.2);color:#ffcf8f}
.plan-badge.featured{background:linear-gradient(90deg,var(--brand),var(--brand2));color:#fff}
.plan-badge.green{background:rgba(40,214,154,.18);color:#7ff0c8}

.plan-price{border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:14px 0;margin:6px 0 14px}
.plan-price .amount{font-size:1.6rem;font-weight:800;line-height:1.15;display:block;
  word-break:break-word}
.plan-price .per{margin-top:6px;display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.chip{background:rgba(109,139,255,.16);color:#a9bcff;font-size:.72rem;font-weight:700;
  padding:2px 9px;border-radius:6px}

.plan-specs{list-style:none;padding:12px;margin:0 0 14px;background:#0b0e14;
  border:1px solid var(--line);border-radius:10px;font-size:.82rem}
.plan-specs li{display:flex;justify-content:space-between;gap:8px;padding:4px 0;align-items:baseline}
.plan-specs li span{white-space:nowrap}
.plan-specs strong{color:var(--brand);text-align:right}
.plan-specs{min-height:8.6em}

.plan-feats{list-style:none;padding:0;margin:0 0 16px;font-size:.84rem;flex:1}
.plan-feats li{padding:6px 0 6px 22px;position:relative;line-height:1.4}
.plan-feats li.yes::before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:800}
.plan-feats li.hi::before{content:"✓";position:absolute;left:0;color:var(--brand);font-weight:800}
.plan-feats li.hi{color:var(--brand);font-weight:700}
.plan-feats li.no::before{content:"✕";position:absolute;left:0;color:#5b6270}
.plan-feats li.no{color:#5b6270;text-decoration:line-through}
.plan-feats.compact li{font-size:.86rem}

.btn-dark{background:#1c2230;border:1px solid var(--line)}
.btn-blue{background:linear-gradient(90deg,#3b6dff,#5b8bff)}
.btn-gold{background:linear-gradient(90deg,#f59e0b,#fbbf24);color:#3a2600}
.btn-green{background:linear-gradient(90deg,#0e9f6e,#22c55e)}

/* bang so sanh */
.compare-wrap{margin-bottom:26px}
.compare-wrap h2{margin:6px 0 4px}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.compare{width:100%;border-collapse:collapse;font-size:.88rem;min-width:720px;margin-top:18px}
table.compare th,table.compare td{padding:12px 10px;border-bottom:1px solid var(--line);text-align:center}
table.compare th:first-child,table.compare td:first-child{text-align:left;color:var(--muted)}
table.compare thead th{font-size:.78rem;letter-spacing:.5px;font-weight:800}
table.compare .hl{background:rgba(109,139,255,.07)}
table.compare .c-blue{color:#a9bcff}
table.compare .c-gold{color:#ffcf8f}
table.compare .c-featured{color:var(--brand)}
table.compare .c-green{color:#7ff0c8}
.ok{color:var(--accent);font-weight:800}
.ko{color:#5b6270}
.faq p{margin:8px 0}
.info-box{max-width:860px}

/* ===== TAI KHOAN ===== */
.plan-summary{display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap}
.plan-summary h3{margin:8px 0 4px}
.stack-sm{display:flex;flex-direction:column;gap:8px}
.mt-sm{margin-top:8px}

/* ===== ADMIN ===== */
.stat-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-bottom:18px}
.stat{text-align:center;padding:16px 10px;margin:0}
.stat-n{font-size:1.5rem;font-weight:800;color:var(--brand)}
.users-table td{vertical-align:top}
.row-locked{opacity:.55}
.ok-badge{background:rgba(40,214,154,.18);color:#7ff0c8}
.lock-badge{background:rgba(255,93,108,.18);color:#ffb3ba}
.admin-actions{position:relative}
.admin-actions summary{cursor:pointer;list-style:none;display:inline-flex}
.admin-actions summary::-webkit-details-marker{display:none}
.actions-pop{position:absolute;right:0;z-index:30;width:230px;margin-top:6px;
  background:var(--card2);border:1px solid var(--line);border-radius:12px;
  padding:14px;box-shadow:var(--shadow)}
.actions-pop hr{margin:12px 0}
td .muted.danger{color:var(--danger)}

/* The "card" nhung gap lai duoc (vd chia se quyen quan ly album) - chi mo
   khi bam vao, tranh chiem dien tich mac dinh tren trang. */
.collapse-card{padding:0}
.collapse-card > summary{cursor:pointer;list-style:none;display:flex;
  align-items:center;gap:8px;padding:18px 22px;font-weight:700;font-size:1.05rem}
.collapse-card > summary::-webkit-details-marker{display:none}
.collapse-card > summary::after{content:"▾";margin-left:auto;color:var(--muted);
  transition:transform .15s}
.collapse-card[open] > summary::after{transform:rotate(180deg)}
.collapse-card > summary:hover{background:rgba(255,255,255,.03)}
.collapse-card > .collapse-body{padding:0 22px 22px}

/* ===== ADMIN: bang kiem tra cau hinh ===== */
.setup-card{border-color:rgba(255,180,84,.4);background:linear-gradient(180deg,#1d1a14,#171c27)}
.setup-card h3{margin:0 0 12px;font-size:1.02rem}
.setup-list{list-style:none;padding:0;margin:0}
.setup-list li{display:flex;align-items:center;gap:12px;padding:11px 0;
  border-top:1px solid var(--line)}
.setup-list li:first-child{border-top:none}
.setup-list li > div{flex:1;min-width:0}
.dot{width:9px;height:9px;border-radius:50%;flex:none}
.dot.off{background:var(--warn);box-shadow:0 0 0 3px rgba(255,180,84,.18)}

/* ===== Huong dan Google ===== */
.steps{list-style:none;counter-reset:step;padding:0;margin:0}
.steps > li{position:relative;padding-left:56px}
.steps > li::before{counter-increment:step;content:counter(step);
  position:absolute;left:18px;top:20px;width:26px;height:26px;border-radius:50%;
  background:linear-gradient(90deg,var(--brand),var(--brand2));color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:.85rem}
.steps h4{margin:0 0 8px}
.steps ul{margin:8px 0;padding-left:18px}
.steps li li{padding:3px 0}
.steps .highlight{border-color:var(--brand);
  box-shadow:0 0 0 2px rgba(109,139,255,.25),var(--shadow)}
.guide .copybox{margin-top:8px}

/* ===== ADMIN: sua bang gia ===== */
.plan-editor{padding:20px}
.pe-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;
  flex-wrap:wrap;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.pe-head h3{margin:0;font-size:1.05rem}
.pe-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:14px}
.pe-grid label{font-size:.82rem}
.pe-grid input{font-size:.9rem;padding:9px 11px}
.pe-wide{grid-column:1/-1}
.pe-checks{display:flex;flex-wrap:wrap;gap:8px 18px;margin-bottom:16px;
  background:#0b0e14;border:1px solid var(--line);border-radius:10px;padding:12px 14px}
.cb{flex-direction:row;align-items:center;gap:7px;font-size:.85rem;font-weight:600;
  cursor:pointer;white-space:nowrap}
.cb input{width:16px;height:16px;accent-color:var(--brand);cursor:pointer}

@media(max-width:1100px){
  .plan-grid{grid-template-columns:repeat(2,1fr)}
  .stat-grid{grid-template-columns:repeat(3,1fr)}
  .pe-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .plan-grid{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .pe-grid{grid-template-columns:1fr}
}

/* tables */
table.data{width:100%;border-collapse:collapse;font-size:.9rem}
table.data th,table.data td{text-align:left;padding:10px;border-bottom:1px solid var(--line)}
table.data th{color:var(--muted);font-weight:600}
.badge{padding:3px 9px;border-radius:999px;background:var(--line);font-size:.75rem;font-weight:700}
.badge.pro{background:linear-gradient(90deg,var(--brand),var(--brand2));color:#fff}
strong.pro{color:var(--brand)}

/* footer */
.footer{border-top:1px solid var(--line);margin-top:40px;padding:22px 0;color:var(--muted)}
.footer .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:.85rem}

/* responsive */
@media(max-width:820px){
  .hero{grid-template-columns:1fr;padding:34px 0}
  .hero h1{font-size:2.1rem}
  .features{grid-template-columns:1fr 1fr}
  .two-col,.pricing{grid-template-columns:1fr}
}
@media(max-width:520px){
  .features{grid-template-columns:1fr}
  /* Cho thanh menu XUONG DONG - truoc day bi ep chung 1 hang nen tran ra ngoai
     man hinh, nut doi ngon ngu VI/EN bi cat mat o mep phai. */
  .nav-inner{flex-wrap:wrap;justify-content:center;gap:10px;padding:10px 16px}
  .nav nav{gap:12px;font-size:.9rem;flex-wrap:wrap;justify-content:center}
  .brand{font-size:1.05rem}
}

/* ============ Admin: quan ly album/anh cua thanh vien ============ */
.admin-head{display:flex;align-items:center;justify-content:space-between;gap:16px;
  flex-wrap:wrap;margin-bottom:18px}
.admin-head h1{margin:0}

.stat-row{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:14px 22px;display:flex;flex-direction:column;gap:2px;min-width:120px}
.stat-num{font-size:1.5rem;font-weight:800;
  background:linear-gradient(90deg,var(--brand),var(--brand2));
  -webkit-background-clip:text;background-clip:text;color:transparent}

.search-bar{display:flex;gap:10px;margin-bottom:16px;flex-wrap:wrap}
.search-bar input{flex:1;min-width:220px}

.admin-table{width:100%;border-collapse:collapse;font-size:.94rem}
.admin-table th{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);
  color:var(--muted);font-size:.82rem;text-transform:uppercase;letter-spacing:.4px;white-space:nowrap}
.admin-table td{padding:12px;border-bottom:1px solid var(--line);vertical-align:middle}
.admin-table tr:last-child td{border-bottom:none}
.admin-table td.num,.admin-table th.num{text-align:right;white-space:nowrap}

.tag-ok{background:rgba(40,214,154,.15);color:var(--accent)}
.tag-off{background:rgba(255,255,255,.08);color:var(--muted)}

.kv-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px}
.btn-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.inline-form{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.inline-form input{flex:1;min-width:220px}

/* phan trang (danh sach thanh vien, album dai...) */
.pager{display:flex;gap:8px;justify-content:center;align-items:center;flex-wrap:wrap;margin:22px 0}
.pager-nums{display:flex;gap:4px;align-items:center}
.pager-num{display:inline-flex;align-items:center;justify-content:center;min-width:34px;height:34px;
  padding:0 6px;border-radius:8px;color:var(--text);font-weight:700;font-size:.9rem}
.pager-num:hover{background:rgba(255,255,255,.06);text-decoration:none}
.pager-num.current{background:linear-gradient(90deg,var(--brand),var(--brand2));color:#fff}
.pager-dots{color:var(--muted);padding:0 2px}
.pager-jump{display:flex;gap:6px;align-items:center;margin-left:6px}
.pager-jump input{width:64px;text-align:center;padding:6px 4px}
.pager-size{display:flex;align-items:center;margin-left:10px;padding-left:10px;
  border-left:1px solid var(--line)}
.pager-size-label{display:flex;align-items:center;gap:8px;font-size:.85rem}
.pager-size select{padding:6px 8px}
@media(max-width:560px){
  .pager-jump{width:100%;justify-content:center;order:99}
  .pager-size{width:100%;justify-content:center;margin-left:0;padding-left:0;
    border-left:none;border-top:1px solid var(--line);padding-top:10px;order:100}
}

.btn-xs{padding:4px 10px;font-size:.8rem;border-radius:8px}
.btn-danger{background:#e0455e;color:#fff !important;border-color:transparent}
.btn-danger:hover{background:#c93a51}
.danger-zone{border-color:rgba(224,69,94,.45)}
.danger-zone h3{color:#ff8095}

.admin-photo-grid{display:grid;gap:14px;
  grid-template-columns:repeat(auto-fill,minmax(190px,1fr))}
.admin-photo{background:var(--bg);border:1px solid var(--line);border-radius:12px;overflow:hidden;
  display:flex;flex-direction:column}
.admin-photo img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block;background:#11141c}
.admin-photo-meta{padding:9px 10px;display:flex;flex-direction:column;gap:6px}
.admin-photo .fname{font-size:.82rem;font-weight:600;overflow:hidden;
  text-overflow:ellipsis;white-space:nowrap}

/* Bat/tat cong khai album (chu album tu doi) */
.vis-row{display:flex;align-items:center;justify-content:space-between;gap:16px;
  flex-wrap:wrap;padding:12px 14px;margin-bottom:14px;border-radius:11px;
  background:rgba(40,214,154,.10);border:1px solid rgba(40,214,154,.35)}
.vis-row.is-off{background:rgba(255,180,84,.10);border-color:rgba(255,180,84,.40)}

/* Chia se quyen quan ly album */
.kv td.right{text-align:right}
.kv tr td{padding:7px 0;border-bottom:1px solid var(--line)}
.kv tr:last-child td{border-bottom:none}

/* ============ Chon nhieu anh (kieu Google Photos) ============ */
.ph{position:relative}
.ph-pick{position:absolute;top:6px;left:6px;width:30px;height:30px;border-radius:50%;
  background:rgba(0,0,0,.45);border:2px solid rgba(255,255,255,.85);cursor:pointer;
  padding:0;display:flex;align-items:center;justify-content:center;z-index:3;
  -webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);transition:.15s}
.ph-pick span{width:14px;height:14px;border-radius:50%;background:transparent;transition:.15s}
.ph-pick:hover{transform:scale(1.08)}
.ph.picked .ph-pick{background:var(--brand);border-color:#fff}
.ph.picked .ph-pick span{background:#fff}
.ph.picked img{outline:3px solid var(--brand);outline-offset:-3px;
  transform:scale(.94);border-radius:10px}
body.selecting .ph a{pointer-events:none}   /* dang chon -> khong mo anh */

/* Thanh cong cu khi da chon */
.sel-bar{position:sticky;top:62px;z-index:15;display:none;
  align-items:center;gap:10px;flex-wrap:wrap;
  background:linear-gradient(90deg,rgba(109,139,255,.22),rgba(160,107,255,.22));
  border:1px solid var(--brand);border-radius:12px;padding:10px 14px;margin:12px 0;
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
.sel-bar.on{display:flex}
.sel-bar .sel-n{font-weight:800}
.sel-bar .grow{flex:1}
@media(max-width:520px){
  .sel-bar{top:0;padding:9px 11px;gap:7px}
  .sel-bar .btn{padding:6px 10px;font-size:.82rem}
}

/* Menu chon "Chup selfie / Chon anh co san" */
.find-camera-wrap{position:relative;display:inline-block}
.find-menu{position:absolute;left:0;top:calc(100% + 6px);z-index:30;width:220px;
  background:var(--card2);border:1px solid var(--line);border-radius:12px;
  padding:8px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:2px}
/* QUAN TRONG: ".find-menu{display:flex}" o tren co cung do dac ta (specificity)
   voi quy tac mac dinh cua trinh duyet cho thuoc tinh [hidden], nhung style
   cua TRANG (author) luon thang style mac dinh cua trinh duyet (user-agent)
   du dat sau hay truoc - nen "hidden" bi vo hieu hoa, menu luon hien du JS da
   set dung menu.hidden=true. Phai khai bao lai rieng cho truong hop [hidden]. */
.find-menu[hidden]{display:none}
.find-menu button{background:transparent;border:none;color:var(--text);text-align:left;
  padding:10px 12px;border-radius:8px;font-size:.92rem;font-weight:600;cursor:pointer;
  width:100%}
.find-menu button:hover{background:rgba(255,255,255,.06)}
@media(max-width:520px){ .find-menu{left:auto;right:0} }

/* Nut lien he noi (goc man hinh) - bam ra mo chon Goi dien / Chat Zalo */
.fab-contact{position:fixed;right:18px;bottom:18px;z-index:80;display:flex;flex-direction:column;
  align-items:flex-end;gap:10px}
.fab-main{position:relative;width:56px;height:56px;border-radius:50%;border:none;cursor:pointer;
  background:linear-gradient(145deg,#3ddc73,#1fa855);box-shadow:0 6px 18px rgba(31,168,85,.45);
  display:flex;align-items:center;justify-content:center;line-height:1;padding:0}
.fab-main svg{width:26px;height:26px;position:relative}
.fab-ring{position:absolute;inset:0;border-radius:50%;background:rgba(31,168,85,.55);
  animation:fabPulse 2.2s ease-out infinite}
@keyframes fabPulse{
  0%{transform:scale(1);opacity:.65}
  100%{transform:scale(1.9);opacity:0}
}
.fab-menu{display:flex;flex-direction:column;gap:8px;margin-bottom:2px;
  transform-origin:right bottom;transition:opacity .16s,transform .16s;opacity:0;
  transform:translateY(6px) scale(.96);pointer-events:none}
.fab-contact.open .fab-menu{opacity:1;transform:translateY(0) scale(1);pointer-events:auto}
.fab-item{display:flex;align-items:center;gap:10px;padding:8px 16px 8px 8px;border-radius:999px;
  background:var(--card2);border:1px solid var(--line);color:var(--text);font-weight:600;
  font-size:.92rem;box-shadow:var(--shadow);white-space:nowrap}
.fab-item:hover{text-decoration:none;background:var(--card)}
.fab-item .fab-ic{display:flex;align-items:center;justify-content:center;width:32px;height:32px;
  border-radius:50%;flex-shrink:0;overflow:hidden}
.fab-item .fab-ic svg{width:100%;height:100%}
.fab-call .fab-ic{background:#25d366}
.fab-call .fab-ic svg{width:18px;height:18px;fill:#fff}
@media(max-width:520px){ .fab-contact{right:12px;bottom:12px} }

/* Preset mau: khung xem thu truoc/sau + thanh truot cuong do */
.preset-preview{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:14px 0}
.preset-preview figure{margin:0}
.preset-preview img{width:100%;border-radius:10px;border:1px solid var(--line);
  background:var(--card2);aspect-ratio:3/2;object-fit:cover}
.preset-preview figcaption{margin-top:6px;text-align:center}
@media(max-width:560px){ .preset-preview{grid-template-columns:1fr} }
.steps{margin:10px 0 0 18px;padding:0;line-height:1.9}
.steps li{margin-bottom:6px}
input[type=range]{width:100%;accent-color:var(--brand);margin-top:6px}

/* ===== Tha tim + luot xem tren tung anh ===== */
/* Thanh nay nam o DAY anh, khong de len nut chon (.ph-pick, goc trai tren)
   hay nut xoa (.ph-del, goc phai tren). */
.ph-meta{position:absolute;left:0;right:0;bottom:0;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:16px 8px 6px;pointer-events:none;
  background:linear-gradient(to top,rgba(0,0,0,.72),rgba(0,0,0,0))}
.ph-meta > *{pointer-events:auto}
.ph-like{display:inline-flex;align-items:center;gap:5px;background:transparent;
  border:none;color:#fff;cursor:pointer;font-size:.9rem;font-weight:700;
  padding:3px 5px;border-radius:8px;line-height:1;
  text-shadow:0 1px 3px rgba(0,0,0,.8);transition:transform .12s}
.ph-like .ic{font-size:1.15rem;line-height:1}
.ph-like:hover{transform:scale(1.15)}
.ph-like.on{color:#ff5d7a}
.ph-like.on .ic{animation:heartPop .32s ease}
@keyframes heartPop{0%{transform:scale(1)}45%{transform:scale(1.45)}100%{transform:scale(1)}}
.ph-views{display:inline-flex;align-items:center;gap:4px;color:rgba(255,255,255,.88);
  font-size:.78rem;font-weight:700;text-shadow:0 1px 3px rgba(0,0,0,.8)}
/* Tren trang cua CHU album: chi xem so lieu, khong bam duoc */
.ph-meta.is-readonly .ph-like{cursor:default;color:#ff8fa3}
.ph-meta.is-readonly .ph-like:hover{transform:none}
/* Dien thoai: nut to hon cho de bam bang ngon tay */
@media(max-width:520px){
  .ph-like{font-size:.95rem;padding:5px 7px}
  .ph-like .ic{font-size:1.25rem}
}

/* Nut tim trong khung xem anh lon */
.lb-like{display:inline-flex;align-items:center;gap:6px}
.lb-like.on{color:#ff5d7a;border-color:rgba(255,93,122,.5);background:rgba(255,93,122,.15)}
.lb-like .ic{font-size:1.1rem;line-height:1}

/* Tom tat tim/luot xem cho chu album */
.stat-row .big-n{font-size:1.5rem;font-weight:800;margin-top:2px}
.stat-row > div{flex:1;min-width:150px}
.top-photo{display:flex;align-items:center;gap:8px;margin-top:4px}
.top-photo img{width:44px;height:44px;object-fit:cover;border-radius:8px;border:1px solid var(--line)}
.top-photo span{font-weight:800;color:#ff8fa3}

/* Tab loc danh sach anh (Tat ca / Duoc tha tim) */
.filter-tabs{display:inline-flex;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.filter-tabs a{padding:7px 13px;font-size:.85rem;font-weight:700;color:var(--muted);
  text-decoration:none;white-space:nowrap}
.filter-tabs a:hover{background:rgba(255,255,255,.05);color:var(--text);text-decoration:none}
.filter-tabs a.on{background:linear-gradient(90deg,var(--brand),var(--brand2));color:#fff}