/* ===== TUTORIALS PAGE — scoped to #r-tutorials ===== */
#r-tutorials{padding-top:80px}
[id^="r-tutorial-"]{padding-top:80px}
#r-tutorials .rzwrap{max-width:1180px;padding-left:28px;padding-right:28px}
#r-tutorials .tz-search{margin-top:26px;max-width:460px;display:flex;align-items:center;gap:10px;background:var(--panel2);border:1px solid var(--line2);border-radius:12px;padding:12px 15px}
#r-tutorials .tz-search input{flex:1;background:none;border:none;outline:none;color:var(--tx);font-family:var(--sans);font-size:15px}
#r-tutorials .tz-search svg{width:17px;height:17px;fill:var(--faint);flex:none}
#r-tutorials .tz-chips{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 34px}
#r-tutorials .tz-chip{font-family:var(--mono);font-size:12px;letter-spacing:.04em;color:var(--mut);background:var(--panel2);border:1px solid var(--line);border-radius:999px;padding:8px 15px;cursor:pointer;transition:.14s}
#r-tutorials .tz-chip:hover{color:var(--tx);border-color:var(--line2)}
#r-tutorials .tz-chip.on{background:var(--grn);color:#06231a;border-color:var(--grn);font-weight:500}
#r-tutorials .tz-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
#r-tutorials .tz-card{background:var(--card-bg,linear-gradient(180deg,#10161d,#0c1116));border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;transition:.18s;cursor:pointer;color:inherit;text-decoration:none}
#r-tutorials .tz-card:hover{transform:translateY(-4px);border-color:var(--line2);box-shadow:0 40px 90px -34px rgba(0,0,0,.8)}
#r-tutorials .tz-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--line);background:#0c1116}
#r-tutorials .tz-thumb img{width:100%;height:100%;object-fit:cover;object-position:left top}
#r-tutorials .tz-thumb::after{content:"";position:absolute;left:50%;top:50%;width:52px;height:52px;transform:translate(-50%,-50%);border-radius:999px;background:rgba(8,9,11,.55);border:1px solid rgba(255,255,255,.25);backdrop-filter:blur(3px)}
#r-tutorials .tz-thumb::before{content:"";position:absolute;left:calc(50% + 3px);top:50%;transform:translate(-50%,-50%);z-index:2;border-style:solid;border-width:8px 0 8px 14px;border-color:transparent transparent transparent #fff}
#r-tutorials .tz-dur{position:absolute;bottom:10px;right:10px;font-family:var(--mono);font-size:11px;background:rgba(8,9,11,.72);border:1px solid var(--line2);border-radius:6px;padding:3px 7px;color:var(--tx);z-index:3}
#r-tutorials .tz-cbody{padding:18px 18px 20px;display:flex;flex-direction:column;gap:9px;flex:1}
#r-tutorials .tz-tagrow{display:flex;align-items:center;justify-content:space-between;gap:8px}
#r-tutorials .tz-tag{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--grn)}
#r-tutorials .tz-num{font-family:var(--mono);font-size:11px;color:var(--faint)}
#r-tutorials .tz-card h3{font-family:var(--serif);font-weight:400;font-size:21px;line-height:1.15;letter-spacing:-.01em}
#r-tutorials .tz-card p{color:var(--mut);font-size:14px;line-height:1.55}
#r-tutorials .tz-more{margin-top:auto;font-family:var(--mono);font-size:12px;letter-spacing:.04em;color:var(--grn);padding-top:6px;display:inline-flex;align-items:center;gap:6px}
#r-tutorials .tz-card:hover .tz-more b{transform:translateX(3px)}
#r-tutorials .tz-more b{transition:.15s}
#r-tutorials .tz-empty{color:var(--mut);font-size:14px;padding:20px 0}
/* tutorial detail view */
#r-tutorials .tzd{max-width:900px!important}
#r-tutorials .tz-back{display:inline-block;font-family:var(--mono);font-size:12px;letter-spacing:.04em;color:var(--mut);margin-bottom:22px;cursor:pointer}
#r-tutorials .tz-back:hover{color:var(--grn)}
#r-tutorials .tzd-h1{font-size:clamp(30px,4vw,46px)!important;margin:6px 0 0}
#r-tutorials .tzv{margin:26px 0 34px;border:1px solid var(--line2);border-radius:16px;overflow:hidden;background:#05070a;aspect-ratio:16/9;box-shadow:0 40px 90px -34px rgba(0,0,0,.8)}
#r-tutorials .tzv video{width:100%;height:100%;object-fit:cover;display:block}
#r-tutorials .tzsteps{max-width:760px}
#r-tutorials .tzsteps h4{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);margin-bottom:8px}
#r-tutorials .tzsteps ol{margin:0;padding-left:0;list-style:none;counter-reset:s}
#r-tutorials .tzsteps li{counter-increment:s;position:relative;padding:12px 0 12px 40px;color:var(--mut);font-size:15px;line-height:1.6;border-top:1px solid var(--line)}
#r-tutorials .tzsteps li:first-child{border-top:none}
#r-tutorials .tzsteps li::before{content:counter(s);position:absolute;left:0;top:11px;width:26px;height:26px;border:1px solid var(--line2);border-radius:8px;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:12px;color:var(--grn)}
#r-tutorials .tzsteps li b{color:var(--tx)}
#r-tutorials .tzs-meta{font-family:var(--mono);font-size:12px;color:var(--faint);margin-top:16px}
@media(max-width:900px){#r-tutorials .tz-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){#r-tutorials .tz-grid{grid-template-columns:1fr}}