:root{
  --bg:#f5f7fb;--bg2:#eef5ff;--card:#ffffff;--text:#101828;--muted:#667085;--line:#e4e7ec;
  --brand:#2554ff;--brand2:#05a6ff;--brand3:#673de6;--success:#079455;--danger:#d92d20;--warning:#dc6803;
  --shadow:0 20px 55px rgba(16,24,40,.10);--shadow2:0 12px 30px rgba(37,84,255,.16);--radius:24px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;background:linear-gradient(180deg,#f4f8ff 0,#fff 52%,#f8fbff 100%);color:var(--text);min-height:100vh;padding-bottom:0}body.no-scroll{overflow:hidden}
a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{border:0;cursor:pointer}img{max-width:100%}.container{width:min(1180px,calc(100% - 32px));margin:auto}.hide{display:none!important}.sr-only{position:absolute;left:-9999px}.code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#f2f4f7;border:1px solid #eaecf0;padding:2px 6px;border-radius:8px;color:#344054}.nowrap{white-space:nowrap}.muted{color:var(--muted)}
.app-header{position:sticky;top:0;z-index:90;background:rgba(255,255,255,.88);backdrop-filter:blur(18px);border-bottom:1px solid rgba(228,231,236,.82)}.header-inner{height:74px;display:flex;align-items:center;justify-content:space-between;gap:14px}.brand-link{display:flex;align-items:center;gap:12px;min-width:max-content}.logo{width:46px;height:46px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;font-weight:1000;letter-spacing:-.06em;box-shadow:var(--shadow2)}.brand-title{font-weight:1000;letter-spacing:-.04em;font-size:18px}.brand-title small{display:block;font-size:12px;color:var(--muted);font-weight:800;letter-spacing:0;margin-top:1px}.nav{display:flex;align-items:center;gap:4px}.nav a{font-size:14px;font-weight:850;color:#344054;padding:10px 12px;border-radius:999px}.nav a.active,.nav a:hover{background:#eef4ff;color:var(--brand)}.header-actions{display:flex;align-items:center;gap:8px}.menu-btn{display:none;width:44px;height:44px;align-items:center;justify-content:center;border-radius:14px;background:#f2f4f7;color:#344054;font-size:22px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 16px;border-radius:14px;font-weight:900;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 12px 26px rgba(37,84,255,.18);transition:.18s transform,.18s box-shadow}.btn:hover{transform:translateY(-1px);box-shadow:0 18px 36px rgba(37,84,255,.24)}.btn.secondary{background:#fff;color:#344054;border:1px solid var(--line);box-shadow:none}.btn.ghost{background:#eef4ff;color:var(--brand);box-shadow:none}.btn.danger{background:#fee4e2;color:#b42318;box-shadow:none}.btn.success{background:#dcfae6;color:#067647;box-shadow:none}.btn.warning{background:#fff4e5;color:#b54708;box-shadow:none}.btn.full{width:100%}.btn.small{min-height:36px;padding:8px 12px;border-radius:12px;font-size:13px}.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none}.mobile-panel{display:none;position:fixed;z-index:100;top:82px;left:16px;right:16px;background:#fff;border:1px solid var(--line);border-radius:24px;padding:10px;box-shadow:var(--shadow)}.mobile-panel.open{display:block}.mobile-panel a{display:flex;align-items:center;justify-content:space-between;padding:14px;border-radius:16px;font-weight:900;color:#344054}.mobile-panel a.active,.mobile-panel a:hover{background:#eef4ff;color:var(--brand)}
.hero{padding:54px 0 36px;position:relative;overflow:hidden}.hero:before{content:"";position:absolute;width:520px;height:520px;border-radius:999px;background:radial-gradient(circle,rgba(37,84,255,.22),rgba(37,84,255,0) 66%);right:-150px;top:-180px;pointer-events:none}.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center;position:relative}.kicker{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#eef4ff;color:var(--brand);font-size:13px;font-weight:1000;margin-bottom:16px}h1{font-size:clamp(36px,5vw,70px);line-height:.97;margin:0 0 18px;letter-spacing:-.065em}.lead{font-size:clamp(16px,2vw,20px);line-height:1.65;color:var(--muted);max-width:720px;margin:0}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.trust-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.trust-pill{background:#fff;border:1px solid var(--line);border-radius:999px;padding:9px 12px;font-weight:900;color:#344054;font-size:13px;box-shadow:0 5px 18px rgba(16,24,40,.04)}.hero-card{background:rgba(255,255,255,.90);border:1px solid rgba(228,231,236,.85);border-radius:32px;padding:20px;box-shadow:var(--shadow)}.practice-widget{background:linear-gradient(145deg,#fff,#f6f9ff);border:1px solid var(--line);border-radius:26px;padding:18px}.wave{height:92px;border-radius:20px;background:repeating-linear-gradient(90deg,rgba(37,84,255,.12) 0 8px,transparent 8px 16px),linear-gradient(180deg,#edf5ff,#fff);display:flex;align-items:center;gap:8px;justify-content:center;overflow:hidden}.bar{width:8px;border-radius:999px;background:linear-gradient(180deg,var(--brand2),var(--brand));height:58px;animation:pulse 1.15s infinite ease-in-out}.bar:nth-child(2n){height:48px;animation-delay:.1s}.bar:nth-child(3n){height:30px;animation-delay:.2s}.bar:nth-child(4n){height:70px;animation-delay:.3s}.bar:nth-child(5n){height:42px;animation-delay:.4s}@keyframes pulse{50%{transform:scaleY(.42);opacity:.55}}.mini-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}.mini-stat{padding:12px;background:#fff;border:1px solid var(--line);border-radius:18px}.mini-stat strong{font-size:24px;display:block;letter-spacing:-.045em}.mini-stat span{font-size:12px;color:var(--muted);font-weight:850}.section{padding:36px 0}.section-title{display:flex;justify-content:space-between;align-items:flex-end;gap:18px;margin-bottom:18px}.section-title h2{font-size:clamp(26px,3vw,42px);line-height:1.03;letter-spacing:-.05em;margin:0}.section-title p{margin:8px 0 0;color:var(--muted);line-height:1.55}.grid{display:grid;gap:16px}.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 8px 28px rgba(16,24,40,.05)}.card h3{margin:8px 0 8px;font-size:20px;letter-spacing:-.03em}.card p{margin:0;color:var(--muted);line-height:1.58}.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;font-size:12px;font-weight:1000}.badge.brand{background:#eef4ff;color:var(--brand)}.badge.success{background:#dcfae6;color:#067647}.badge.warn{background:#fff4e5;color:#b54708}.badge.danger{background:#fee4e2;color:#b42318}.badge.dark{background:#101828;color:#fff}.badge.lock{background:#fff4e5;color:#b54708}.feature-icon{width:44px;height:44px;border-radius:16px;display:grid;place-items:center;background:#eef4ff;color:var(--brand);font-size:22px;margin-bottom:8px}.banner{border-radius:30px;padding:28px;background:linear-gradient(135deg,#111827,#1d4ed8);color:#fff;display:grid;grid-template-columns:1fr auto;gap:18px;align-items:center;box-shadow:var(--shadow)}.banner p{color:rgba(255,255,255,.78);line-height:1.6;margin:8px 0 0}.banner .btn.secondary{background:#fff;color:#101828}.page-head{padding:38px 0 20px}.page-head h1{font-size:clamp(34px,4vw,56px)}.page-head p{max-width:760px}.toolbar{display:grid;grid-template-columns:1.2fr repeat(4,.7fr);gap:10px;margin-bottom:16px;align-items:center}.field{display:flex;flex-direction:column;gap:7px}.field label{font-weight:900;color:#344054;font-size:13px}.input,select,textarea{width:100%;border:1px solid var(--line);background:#fff;border-radius:14px;padding:12px 13px;color:#101828;outline:none;transition:.15s border,.15s box-shadow}textarea{min-height:110px;resize:vertical;line-height:1.55}.input:focus,select:focus,textarea:focus{border-color:#84adff;box-shadow:0 0 0 4px rgba(37,84,255,.10)}.dictation-card{display:flex;flex-direction:column;min-height:100%;gap:12px}.dictation-meta{display:flex;gap:8px;flex-wrap:wrap}.dictation-card h3{margin:0}.dictation-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto}.empty{padding:28px;text-align:center;border:1px dashed #cfd8ea;border-radius:24px;background:#fff;color:var(--muted)}.practice-shell{display:grid;grid-template-columns:.86fr 1.14fr;gap:16px;align-items:start}.player-panel{position:sticky;top:92px}.timer{font-size:44px;font-weight:1000;letter-spacing:-.055em}.meter{height:12px;border-radius:999px;background:#edf2f7;overflow:hidden;margin:14px 0}.meter span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--brand),var(--brand2));border-radius:inherit;transition:.2s width}.result-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.result-box{border:1px solid var(--line);background:#fff;border-radius:18px;padding:12px}.result-box strong{display:block;font-size:26px;letter-spacing:-.045em}.result-box span{color:var(--muted);font-weight:850;font-size:12px}.errors-list{display:grid;gap:8px;max-height:400px;overflow:auto}.error-row{display:grid;grid-template-columns:110px 1fr 1fr;gap:8px;align-items:center;border:1px solid var(--line);background:#fff;border-radius:14px;padding:10px}.error-row strong{font-size:12px}.split{display:grid;grid-template-columns:1fr 1fr;gap:16px}.dashboard-metric{display:flex;align-items:center;justify-content:space-between;gap:12px}.dashboard-metric strong{font-size:32px;letter-spacing:-.055em}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:18px;background:#fff}.table{width:100%;border-collapse:collapse;min-width:780px}.table th,.table td{padding:12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.table th{font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:#667085;background:#f9fafb}.table tr:last-child td{border-bottom:0}.footer{border-top:1px solid var(--line);background:#fff;margin-top:40px;padding:30px 0 90px}.footer-grid{display:grid;grid-template-columns:1.3fr repeat(3,.7fr);gap:18px}.footer h4{margin:0 0 10px}.footer a{display:block;color:#667085;font-weight:750;margin:8px 0}.toast{position:fixed;right:18px;bottom:18px;z-index:150;background:#101828;color:#fff;border-radius:16px;padding:12px 14px;box-shadow:var(--shadow);display:none;max-width:360px}.toast.show{display:block}.modal{display:none;position:fixed;inset:0;z-index:120;background:rgba(16,24,40,.45);padding:18px;overflow:auto}.modal.open{display:block}.modal-card{width:min(950px,100%);margin:40px auto;background:#fff;border-radius:28px;border:1px solid var(--line);box-shadow:var(--shadow);padding:22px}.modal-head{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:14px}.bottom-nav{display:none}
.admin-body{background:#f5f7fb}.admin-wrap{display:grid;grid-template-columns:270px 1fr;min-height:100vh}.admin-sidebar{position:sticky;top:0;height:100vh;background:#101828;color:#fff;padding:18px;display:flex;flex-direction:column}.admin-sidebar .logo{box-shadow:none}.admin-nav{display:grid;gap:8px;margin:20px 0}.admin-nav button{background:transparent;color:rgba(255,255,255,.75);padding:12px;border-radius:14px;text-align:left;font-weight:900}.admin-nav button.active,.admin-nav button:hover{background:rgba(255,255,255,.10);color:#fff}.admin-main{padding:22px}.admin-top{display:flex;justify-content:space-between;gap:14px;align-items:center;margin-bottom:18px}.login-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 20% 10%,rgba(37,84,255,.22),transparent 36%),#f5f7fb}.login-card{width:min(520px,100%);background:#fff;border:1px solid var(--line);border-radius:30px;box-shadow:var(--shadow);padding:28px}.login-card h1{font-size:44px}.admin-form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.admin-form-grid .wide{grid-column:1/-1}.status-dot{width:10px;height:10px;border-radius:50%;display:inline-block;background:var(--danger)}.status-dot.ok{background:var(--success)}.kbd{font-family:ui-monospace,monospace;font-size:12px;background:#f2f4f7;border:1px solid #d0d5dd;border-bottom-width:2px;border-radius:6px;padding:2px 5px}
@media(max-width:980px){.nav,.header-actions .desktop-only{display:none}.menu-btn{display:flex}.hero-grid,.practice-shell,.split,.banner{grid-template-columns:1fr}.hero{padding-top:34px}.hero-card{order:-1}.toolbar{grid-template-columns:1fr 1fr}.cols-3,.cols-4{grid-template-columns:repeat(2,minmax(0,1fr))}.player-panel{position:static}.footer-grid{grid-template-columns:1fr 1fr}.admin-wrap{grid-template-columns:1fr}.admin-sidebar{position:static;height:auto}.admin-nav{grid-template-columns:repeat(3,1fr)}.admin-main{padding:16px}}
@media(max-width:640px){body{padding-bottom:74px}.container{width:min(100% - 24px,1180px)}.header-inner{height:66px}.brand-title{font-size:16px}.logo{width:42px;height:42px;border-radius:14px}.hero{padding:22px 0 20px}.hero-card{padding:12px;border-radius:24px}.practice-widget{padding:12px}.wave{height:72px}.mini-stats{grid-template-columns:1fr}.trust-row{gap:8px}.btn{width:100%;min-height:48px}.hero-actions .btn{flex:1 1 100%}h1{font-size:38px}.section{padding:24px 0}.section-title{align-items:flex-start;flex-direction:column}.toolbar{grid-template-columns:1fr}.cols-2,.cols-3,.cols-4{grid-template-columns:1fr}.card{padding:16px;border-radius:20px}.result-grid{grid-template-columns:1fr 1fr}.error-row{grid-template-columns:1fr}.footer{padding-bottom:96px}.footer-grid{grid-template-columns:1fr}.bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:95;display:grid;grid-template-columns:repeat(5,1fr);background:rgba(255,255,255,.96);backdrop-filter:blur(18px);border-top:1px solid var(--line);padding:7px 8px calc(7px + env(safe-area-inset-bottom))}.bottom-nav a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;min-height:54px;border-radius:16px;color:#667085;font-size:11px;font-weight:900}.bottom-nav a strong{font-size:18px}.bottom-nav a.active{background:#eef4ff;color:var(--brand)}.modal{padding:10px}.modal-card{margin:18px auto;border-radius:22px;padding:16px}.admin-form-grid{grid-template-columns:1fr}.admin-nav{grid-template-columns:1fr 1fr}.table{min-width:720px}.login-card h1{font-size:36px}}