:root{
  color-scheme:light;          /* stay light even when the phone/OS is in dark mode */
  --bg:#f6f8fb; --panel:#ffffff; --panel2:#eef2f7; --line:#dde3ea;
  --text:#1a2230; --muted:#5b6675; --accent:#2f6fe0; --accent2:#2559c0;
  --danger:#d5343a; --good:#1f9d4d; --warn:#b7791f;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}
button:disabled{cursor:default}
a{color:var(--accent);text-decoration:none}
button{font:inherit;cursor:pointer}
.hidden{display:none!important}
.muted{color:var(--muted)}
.hint{font-size:12px;color:var(--muted);margin-top:6px}

.nav{display:flex;align-items:center;flex-wrap:wrap;gap:10px 18px;padding:12px 20px;background:var(--panel);border-bottom:1px solid var(--line)}
.nav .brand{font-weight:700}
.nav-links{display:flex;align-items:center;flex-wrap:wrap;gap:10px 18px;flex:1}
.nav a{color:var(--muted);font-size:14px}
.nav a.active,.nav a:hover{color:var(--text)}
.nav .sp{flex:1}
.nav .who{font-size:13px;color:var(--muted)}
.nav .out{padding:6px 12px;background:var(--panel2);border:1px solid var(--line);border-radius:8px;color:var(--text);font-size:13px}
.nav-toggle{display:none;background:var(--panel2);border:1px solid var(--line);border-radius:8px;padding:5px 11px;font-size:18px;line-height:1;color:var(--text)}

/* ===== mobile: collapsible menu + tighter spacing ===== */
@media (max-width:760px){
  .nav-toggle{display:inline-flex;margin-left:auto}
  .nav-links{display:none;flex-basis:100%;flex-direction:column;align-items:stretch;gap:2px;margin-top:8px}
  .nav.open .nav-links{display:flex}
  .nav-links .sp{display:none}
  .nav-links a{padding:10px 8px;border-radius:8px;font-size:15px}
  .nav-links a:hover,.nav-links a.active{background:var(--panel2)}
  .nav-links .who{padding:10px 8px;order:99}
  .nav-links .out{order:100;text-align:center}
}
@media (max-width:640px){
  .wrap{padding:18px 14px}
  h1{font-size:20px}
  .card{padding:16px}
  input,select,textarea{font-size:16px}   /* prevents iOS zoom-on-focus */
  .row>*{min-width:0}
  .hero{padding:52px 16px 40px}
  section > .wrap{padding-top:28px;padding-bottom:28px}
}


.wrap{max-width:960px;margin:0 auto;padding:24px 20px}
.center{min-height:100%;display:flex;align-items:center;justify-content:center;padding:24px}
h1{font-size:22px;margin:0 0 4px}
.sub{color:var(--muted);margin:0 0 20px;font-size:14px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px}
.card.narrow{width:100%;max-width:420px}

label{display:block;font-size:13px;color:var(--muted);margin:14px 0 6px}
input,select,textarea{width:100%;padding:11px 12px;background:var(--panel2);border:1px solid var(--line);border-radius:9px;color:var(--text);font-size:14px}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent)}
input:disabled{opacity:.6}
.row{display:flex;gap:10px;flex-wrap:wrap}.row>*{flex:1;min-width:140px}
.btn{display:inline-block;padding:11px 16px;background:var(--accent);border:none;border-radius:9px;color:#fff;font-size:14px;font-weight:600}
.btn:hover{background:var(--accent2)}.btn:disabled{opacity:.5;cursor:default}
.btn.full{width:100%;margin-top:18px}
.btn.sm{padding:6px 11px;font-size:13px;font-weight:500}
.btn.ghost{background:var(--panel2);border:1px solid var(--line);color:var(--text)}
.msg{margin-top:14px;padding:10px 12px;border-radius:8px;font-size:13px;white-space:pre-wrap}
.msg.err{background:#fcebec;border:1px solid #f3c0c3;color:#b3261e}
.msg.ok{background:#e7f6ec;border:1px solid #bfe3cb;color:#1a7a3d}
.msg.info{background:#eef4fd;border:1px solid #c6dbf7;color:#1a4b8f}
.msg.info a{color:inherit;font-weight:600}

table{width:100%;border-collapse:collapse;margin-top:12px}
th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line);font-size:14px;vertical-align:middle}
th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.4px}
td select{padding:6px 8px}

.grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));margin-top:16px}
.classcard{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:8px}
.classcard .nm{font-weight:600;font-size:16px}
.classcard .tc{color:var(--muted);font-size:13px}
.section{margin-top:28px}
.section h2{font-size:16px;margin:0 0 4px}
.ts-holder{margin-top:16px;min-height:66px}

/* ===== landing ===== */
.btn{transition:transform .07s ease, background .15s ease, box-shadow .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn.lg{padding:14px 22px;font-size:16px;border-radius:12px}
.ctr{text-align:center}

.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);padding:78px 20px 66px;
  background:
    radial-gradient(55% 120% at 12% -10%, rgba(47,111,224,.15), transparent 60%),
    radial-gradient(50% 120% at 100% 0%, rgba(31,157,77,.12), transparent 55%),
    linear-gradient(180deg,#ffffff, var(--bg))}
.hero-inner{max-width:760px;margin:0 auto;text-align:center;position:relative;z-index:1}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.6px;text-transform:uppercase;
  color:var(--accent);background:rgba(47,111,224,.1);padding:5px 13px;border-radius:999px;margin-bottom:18px}
.hero-inner h1{font-size:clamp(30px,5.2vw,46px);line-height:1.08;letter-spacing:-.02em;margin:0 0 16px;font-weight:800}
.hero-inner p{color:var(--muted);font-size:clamp(15px,2vw,18px);max-width:600px;margin:0 auto 28px;line-height:1.55}
.hero-cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.hero-badges{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;margin-top:30px;color:var(--muted);font-size:13px}
.hero-badges span{display:inline-flex;align-items:center;gap:7px}

section{padding:16px 0}
section > .wrap{padding-top:38px;padding-bottom:38px}
.band{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{text-align:center;max-width:620px;margin:0 auto 8px}
section h2{font-size:clamp(22px,3.2vw,30px);letter-spacing:-.01em;margin:0 0 8px;font-weight:800}
.sec-head p{color:var(--muted);margin:0;font-size:15px}

.lang-grid,.feature-grid,.steps{display:grid;gap:18px;margin-top:28px}
.lang-grid{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.feature-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.steps{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}

.lang-card,.feature,.step{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:24px;
  transition:transform .13s ease, box-shadow .13s ease}
.lang-card:hover,.feature:hover,.step:hover{transform:translateY(-3px);box-shadow:0 14px 32px -14px rgba(20,34,64,.22)}
.band .lang-card{background:var(--bg)}
.lang-card h3,.feature h3,.step h3{margin:14px 0 5px;font-size:17px;font-weight:700}
.lang-card p,.feature p,.step p{color:var(--muted);font-size:14px;line-height:1.6;margin:0}
.lang-flag{width:58px;height:58px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:30px;
  background:linear-gradient(135deg, rgba(47,111,224,.14), rgba(31,157,77,.12))}
.feature .ic{width:48px;height:48px;border-radius:13px;display:flex;align-items:center;justify-content:center;font-size:24px;
  background:rgba(47,111,224,.1)}
.step{position:relative}
.step .num{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));
  color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;
  box-shadow:0 8px 18px -6px rgba(47,111,224,.55)}

/* pricing */
.priceCard{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:24px;
  display:flex;flex-direction:column;gap:8px;transition:transform .13s ease, box-shadow .13s ease}
.priceCard:hover{transform:translateY(-3px);box-shadow:0 16px 36px -16px rgba(20,34,64,.22)}
.priceCard.popular{border-color:var(--accent);box-shadow:0 16px 40px -16px rgba(47,111,224,.4)}
.priceCard .pc-name{font-weight:700;font-size:16px}
.priceCard .pc-price{font-size:32px;font-weight:800;letter-spacing:-.02em}
.priceCard .pc-price span{font-size:13px;font-weight:500;color:var(--muted);margin-left:4px}
.priceCard .pc-eq{font-size:14px;margin:-2px 0 2px;font-weight:600}
.priceCard .pc-meta{color:var(--muted);font-size:13px;margin-bottom:10px}
.pc-total .tot-eq{font-weight:500;font-size:13px;margin-left:6px}
.priceCard .btn.full{margin-top:auto}
.ribbon{position:absolute;top:14px;right:14px;background:var(--accent);color:#fff;font-size:11px;font-weight:700;
  letter-spacing:.4px;padding:4px 10px;border-radius:999px}

/* cta + footer */
.cta-band{text-align:center;padding:64px 20px;border-top:1px solid var(--line);
  background:radial-gradient(60% 150% at 50% -20%, rgba(47,111,224,.16), transparent 60%), linear-gradient(180deg,var(--panel),var(--bg))}
.cta-band h2{font-size:clamp(24px,3.4vw,32px);letter-spacing:-.01em;margin:0 0 10px;font-weight:800}
.cta-band p{color:var(--muted);margin:0 0 22px;font-size:16px}
.site-footer{border-top:1px solid var(--line);background:var(--panel);padding:26px 20px;color:var(--muted);font-size:13px;text-align:center}

/* ===== utilities (replace ad-hoc inline styles) ===== */
.flex{display:flex}
.flex-wrap{flex-wrap:wrap}
.items-center{align-items:center}
.justify-center{justify-content:center}
.between{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.grow{flex:1}
.col{display:flex;flex-direction:column}
.gap-4{gap:4px}.gap-6{gap:6px}.gap-8{gap:8px}.gap-10{gap:10px}.gap-12{gap:12px}.gap-14{gap:14px}
.m0{margin:0}
.mt-0{margin-top:0}.mt-4{margin-top:4px}.mt-6{margin-top:6px}.mt-8{margin-top:8px}.mt-10{margin-top:10px}
.mt-12{margin-top:12px}.mt-14{margin-top:14px}.mt-16{margin-top:16px}.mt-18{margin-top:18px}.mt-22{margin-top:22px}
.mb-6{margin-bottom:6px}.mb-10{margin-bottom:10px}.mb-12{margin-bottom:12px}.mb-16{margin-bottom:16px}
.fw6{font-weight:600}.fw7{font-weight:700}.fw8{font-weight:800}
.fs-12{font-size:12px}.fs-13{font-size:13px}.fs-14{font-size:14px}
.big{font-size:22px;font-weight:700}
.huge{font-size:30px;font-weight:800;margin:14px 0}
.nowrap{white-space:nowrap}
.tc{text-align:center}
.narrow-560{max-width:560px}
.narrow-620{max-width:620px}
.narrow-720{max-width:720px}
.wide-900{max-width:900px}
.items-end{align-items:flex-end}
.w-auto{width:auto}
.in-hrs{width:60px;padding:4px 6px}
.sec-title{font-size:16px;margin:0 0 4px}

/* settings-style forms: compact section headings + monospace command box */
.stack-form h2{font-size:16px;margin:22px 0 4px}
.stack-form h2:first-of-type{margin-top:0}
.stack-form h3{font-size:14px;margin:18px 0 4px}
.cmd{width:100%;font-family:monospace;font-size:12px;resize:vertical}

/* row-style cards used on dashboards and lists */
.rowcard{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:10px}
.hoursbar{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.recvid{width:100%;margin-top:10px;border-radius:10px;background:#000}
.rec-main{flex:1;min-width:200px}
.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:700;color:#fff;background:var(--muted)}
.badge-ok{background:var(--good)}
.badge-warn{background:var(--warn)}
.badge-hold{background:var(--muted)}
.badge-info{background:var(--accent)}
.badge-live{background:var(--good)}
.badge-abandoned{background:var(--danger)}
.badge-done{background:#8a94a3}

/* ===== classes grid (dashboard) ===== */
.gridWrap{overflow-x:auto;margin-top:10px}
table.grid{display:table;border-collapse:collapse;width:100%;min-width:0;font-size:13px;table-layout:fixed}
table.grid th,table.grid td{border:1px solid var(--line);padding:4px 6px;text-align:left;vertical-align:middle}
table.grid th{background:var(--panel2);font-weight:600;white-space:nowrap;text-transform:none;letter-spacing:0;color:var(--text)}
table.grid input,table.grid select{width:100%;padding:5px 6px;box-sizing:border-box;background:transparent;border:1px solid transparent;border-radius:6px;font:inherit}
table.grid input:hover,table.grid select:hover{border-color:var(--line)}
table.grid input:focus,table.grid select:focus{border-color:var(--accent);background:var(--panel);outline:none}
table.grid input.num{width:52px}
table.grid td.bk{color:var(--muted);font-size:12px}
table.grid td.act .row2{display:flex;gap:4px;align-items:center;white-space:nowrap}
col.c-name{width:168px}col.c-slug{width:108px}col.c-when{width:188px}col.c-min{width:46px}col.c-cap{width:46px}
col.c-teacher{width:108px}col.c-booked{width:110px}col.c-status{width:82px}col.c-act{width:160px}

/* ===== clip editor ===== */
.clip-vid{width:100%;max-height:52vh;margin-top:12px;border-radius:12px;background:#000}
.tb{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:12px}
.tb .sp{flex:1}
.tl{position:relative;margin-top:16px;user-select:none}
.ruler{position:relative;height:16px;margin-bottom:6px}
.ruler span{position:absolute;transform:translateX(-50%);font-size:11px;color:var(--muted);white-space:nowrap}
.track{position:relative;height:66px;background:var(--panel2);border:1px solid var(--line);border-radius:10px;overflow:hidden;cursor:text}
.seg{position:absolute;top:6px;bottom:6px;background:linear-gradient(135deg,var(--accent),var(--accent2));border-radius:8px;border:2px solid transparent;cursor:pointer;display:flex;align-items:center;justify-content:center;color:#fff;font-size:11px;font-weight:600;overflow:hidden}
.seg.sel{border-color:#fff;box-shadow:0 0 0 2px var(--accent)}
.ph{position:absolute;top:-2px;bottom:0;left:0;width:2px;background:#0f1419;pointer-events:none}
.ph::before{content:"";position:absolute;top:-2px;left:-5px;border:6px solid transparent;border-top-color:#0f1419}

/* ===== device test ===== */
.cam-preview{width:100%;max-height:52vh;border-radius:12px;background:#000}
.meter{height:16px;background:var(--panel2);border:1px solid var(--line);border-radius:8px;overflow:hidden;margin-top:6px}
.meter .bar{height:100%;width:0;background:linear-gradient(90deg,var(--good),var(--warn),var(--danger));transition:width .05s linear}

/* Classes grid on phones: stack each row into a labelled card instead of a wide
   side-scrolling table. Placed at end of file so it overrides the base
   table.grid rules above (equal specificity — later wins). */
@media (max-width:760px){
  .gridWrap{overflow:visible}
  table.grid{display:block;min-width:0;font-size:14px}
  table.grid thead,table.grid colgroup{display:none}
  table.grid tbody{display:block}
  table.grid tr{display:block;border:1px solid var(--line);border-radius:12px;background:var(--panel);padding:10px 12px;margin-top:10px}
  table.grid td{display:block;border:none;padding:5px 0}
  table.grid td::before{content:attr(data-label);display:block;color:var(--muted);font-size:12px;font-weight:600;margin-bottom:3px}
  table.grid td.act::before{display:none}
  table.grid input,table.grid select,table.grid input.num{width:100%}
  table.grid td.act .row2{flex-wrap:wrap;gap:8px;margin-top:6px}
  table.grid td.act .btn{flex:1 1 auto;min-width:0;text-align:center}
}

/* weekday picker for recurring classes */
.dayck{display:inline-flex;align-items:center;gap:6px;margin:0;padding:6px 11px;border:1px solid var(--line);border-radius:8px;background:var(--panel2);color:var(--text);font-size:14px;cursor:pointer}
.dayck input{width:auto}
.ck{display:inline-flex;align-items:center;gap:8px;font-size:14px;cursor:pointer}
.ck input{width:auto}
.fw4{font-weight:400}
.curr-head{margin:22px 0 8px;padding-bottom:6px;border-bottom:2px solid var(--line);font-size:16px}
.lang-flag{font-weight:800;color:var(--accent)}

/* student week calendar */
.weekcal{display:grid;grid-template-columns:repeat(7,1fr);gap:8px;margin-top:12px}
.daycol{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:8px;min-height:78px}
.daycol.today{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.dayhd{display:flex;justify-content:space-between;gap:4px;font-size:12px;color:var(--muted);font-weight:600;margin-bottom:6px}
.slot{border:1px solid var(--line);border-radius:8px;padding:6px;margin-bottom:6px;background:var(--panel2)}
.slot.mine{border-color:var(--good)}
.slot.past{opacity:.55}
.slot-t{font-size:12px;color:var(--muted);font-weight:600}
.slot-n{font-weight:600;font-size:13px;margin:1px 0 3px}
.slot .btn.sm{width:100%;text-align:center;margin-top:4px}
.slot .m0{margin-top:0}
.noclass{color:var(--muted);text-align:center;padding:8px 0}
@media (max-width:760px){ .weekcal{grid-template-columns:1fr} .daycol{min-height:0} }
.mobile-only{display:none}
@media (max-width:760px){ .daycol.empty{display:none} .mobile-only{display:block} }