:root{--bg:#f5f7fb;--ink:#172033;--muted:#687286;--primary:#1f6feb;--dark:#101828;--line:#e5e9f2;--ok:#0f9f6e;--warn:#b7791f}
*{box-sizing:border-box}body{margin:0;font-family:Inter,Arial,sans-serif;background:var(--bg);color:var(--ink);letter-spacing:0}a{text-decoration:none;color:inherit}.container{width:min(1180px,calc(100% - 32px));margin:0 auto}.public-nav{height:76px;display:flex;align-items:center;justify-content:space-between}.brand{font-weight:800;font-size:24px;color:var(--dark)}.brand-with-logo{display:inline-flex;align-items:center;min-width:0}.brand-logo{display:block;width:154px;max-width:100%;height:auto;object-fit:contain}.brand-logo-mark{display:block;width:34px;height:34px;border-radius:10px;object-fit:cover;flex:0 0 auto}.brand-wordmark{font-weight:800;letter-spacing:0}.admin-brand{display:flex;align-items:center;gap:10px}.auth-logo{display:flex;justify-content:center;margin-bottom:12px}.auth-logo .brand-logo{width:172px}.nav-links{display:flex;gap:22px;align-items:center;color:var(--muted);font-size:14px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:8px;background:var(--primary);color:#fff;padding:11px 16px;font-weight:700;cursor:pointer}.btn.secondary{background:#fff;color:var(--dark);border:1px solid var(--line)}
.hero{padding:58px 0 46px;background:linear-gradient(135deg,#fff 0%,#eef4ff 100%);border-bottom:1px solid var(--line)}.premium-hero{position:relative;overflow:hidden}.premium-hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(45deg,rgba(31,111,235,.055) 25%,transparent 25%),linear-gradient(-45deg,rgba(31,111,235,.055) 25%,transparent 25%),linear-gradient(45deg,transparent 75%,rgba(31,111,235,.055) 75%),linear-gradient(-45deg,transparent 75%,rgba(31,111,235,.055) 75%);background-size:42px 42px;background-position:0 0,0 21px,21px -21px,-21px 0;pointer-events:none}.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center;position:relative}.eyebrow{color:var(--primary);font-weight:800;font-size:13px;text-transform:uppercase}.hero h1{font-size:54px;line-height:1.05;margin:14px 0 18px;max-width:760px}.lead{font-size:19px;line-height:1.65;color:var(--muted);max-width:690px}.hero-panel{background:#111827;color:#fff;border-radius:8px;padding:22px;box-shadow:0 20px 60px rgba(16,24,40,.18)}.chess-panel{background:linear-gradient(160deg,#101828,#1d2939);border:1px solid rgba(255,255,255,.12)}.metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px}.metric{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:8px;padding:14px}.metric b{display:block;font-size:25px}
.section{padding:54px 0}.section h2{font-size:34px;margin:0 0 18px}.section-head{margin-bottom:22px}.feature-band{background:#fff;border-block:1px solid var(--line)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.feature-grid{grid-template-columns:repeat(4,1fr)}.card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:20px}.card h3{margin:0 0 10px}.feature-card,.price-card,.tournament-card{box-shadow:0 14px 40px rgba(16,24,40,.05)}.feature-icon{display:inline-grid;place-items:center;width:32px;height:32px;border-radius:8px;background:#e8f1ff;color:var(--primary);font-weight:900;margin-bottom:12px}.step-card b{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:999px;background:#101828;color:#fff;margin-bottom:14px}.soft{background:#f8fafc}.muted{color:var(--muted)}.price{font-size:34px;font-weight:800;margin:14px 0}.feature-list{display:grid;gap:9px;margin:18px 0;padding-left:18px;color:#344054}.cta-section{background:#101828;color:#fff;text-align:center}.cta-section .lead{margin-inline:auto;color:#d0d5dd}
.login-wrap{min-height:100vh;display:grid;place-items:center;background:#eef4ff}.login-card{width:min(420px,calc(100% - 32px));background:#fff;border:1px solid var(--line);border-radius:8px;padding:28px;box-shadow:0 18px 50px rgba(16,24,40,.12)}.form-row{display:grid;gap:7px;margin-bottom:14px}.input,select,textarea{width:100%;border:1px solid var(--line);border-radius:8px;padding:11px 12px;font:inherit;background:#fff}.alert{padding:12px;border-radius:8px;margin-bottom:16px}.alert-danger{background:#fff1f0;color:#a8071a}.alert-success{background:#ecfdf5;color:#067647}
.app-shell{display:grid;grid-template-columns:260px minmax(0,1fr);min-height:100vh;max-width:100%;overflow-x:hidden}.sidebar{background:#101828;color:#d0d5dd;padding:22px;min-width:0}.sidebar .brand{color:#fff;margin-bottom:26px}.menu{display:grid;gap:6px}.menu a{padding:11px 12px;border-radius:8px;color:#d0d5dd;min-width:0;overflow-wrap:anywhere}.menu a:hover,.menu a.active{background:#1d2939;color:#fff}.main{padding:24px;min-width:0;max-width:100%;overflow-x:hidden}.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}.table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden}.table th,.table td{text-align:left;padding:12px;border-bottom:1px solid var(--line);font-size:14px;vertical-align:top}.table th{background:#f8fafc;color:#475467}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:22px}.stat{background:#fff;border:1px solid var(--line);border-radius:8px;padding:18px}.stat b{font-size:30px;display:block}.two{display:grid;grid-template-columns:1fr 1fr;gap:18px}.actions{display:flex;gap:8px;flex-wrap:wrap}.inline-edit{min-width:280px}.inline-edit summary{list-style:none;margin-bottom:10px}.log-row{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px}.footer{padding:28px 0;color:var(--muted);border-top:1px solid var(--line)}.footer-links{display:flex;gap:16px;flex-wrap:wrap;align-items:center}.footer-links span{margin-right:auto}
.badge{display:inline-flex;align-items:center;border-radius:999px;background:#eef2f6;color:#344054;padding:4px 9px;font-size:12px;font-weight:700}.badge.ok{background:#ecfdf3;color:#067647}.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0}.tabs a{background:#fff;border:1px solid var(--line);border-radius:8px;padding:9px 12px;color:#344054;font-weight:700;font-size:13px}
.page-header{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px;margin-bottom:18px;box-shadow:0 18px 50px rgba(16,24,40,.06);display:flex;justify-content:space-between;gap:18px;align-items:flex-start}.page-header h1,.page-header h2{margin:6px 0 8px;font-size:34px;line-height:1.15}.badge-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.action-buttons{display:flex;gap:9px;flex-wrap:wrap;align-items:center}.section-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;margin-bottom:18px;box-shadow:0 14px 38px rgba(16,24,40,.05)}.compact-card{display:grid;gap:10px}.rich-card{position:relative;overflow:hidden}.rich-card:before{content:"";position:absolute;inset:0 0 auto;height:4px;background:linear-gradient(90deg,var(--primary),#56b6ff)}.stat-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;box-shadow:0 12px 32px rgba(16,24,40,.05)}.stat-card span{display:block;color:var(--muted);font-size:13px}.stat-card b{font-size:30px;display:block;margin-top:6px}.dashboard-grid{grid-template-columns:repeat(4,1fr);margin-bottom:18px}.meta-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.meta-grid p{margin:0;background:#f8fafc;border:1px solid var(--line);border-radius:10px;padding:12px}.meta-grid span{display:block;color:var(--muted);font-size:12px;margin-bottom:5px}.meta-grid b{font-size:14px;overflow-wrap:anywhere}.meta-grid.compact{grid-template-columns:repeat(3,1fr);margin:14px 0}.tab-nav{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0}.tab-nav a{background:#fff;border:1px solid var(--line);border-radius:999px;padding:10px 14px;color:#344054;font-weight:800;font-size:13px;box-shadow:0 8px 20px rgba(16,24,40,.04)}.tab-nav a.active,.tab-nav a:hover{background:#101828;color:#fff;border-color:#101828}.sticky-tabs{position:sticky;top:0;z-index:3;background:rgba(245,247,251,.9);backdrop-filter:blur(8px);padding:10px 0}.tab-panel{display:none;animation:fadeIn .16s ease}.tab-panel.active{display:block}.form-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;align-items:end}.filter-toolbar{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;margin-bottom:20px;box-shadow:0 14px 34px rgba(16,24,40,.05)}.empty-state{background:#fff;border:1px dashed #cbd5e1;border-radius:14px;padding:28px;color:var(--muted);text-align:center}.trust-strip{background:#101828;color:#fff}.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;padding:18px 0}.trust-grid div{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:14px}.trust-grid b{display:block}.trust-grid span{color:#d0d5dd;font-size:13px}.public-tournament-hero,.tournament-header,.quick-header{background:linear-gradient(135deg,#fff,#f2f7ff)}.public-list-header{display:block}.price-card.popular{border-color:#9cc3ff;box-shadow:0 18px 50px rgba(31,111,235,.14)}.quick-grid{margin-top:18px}.quick-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;box-shadow:0 14px 36px rgba(16,24,40,.06)}.board-number{display:inline-flex;background:#101828;color:#fff;border-radius:999px;padding:6px 11px;font-weight:800;margin-bottom:12px}.players-vs{display:grid;grid-template-columns:1fr auto 1fr;gap:10px;align-items:center;margin:10px 0 14px}.players-vs span{color:var(--muted);font-size:12px;text-align:center}.result-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.result-buttons .btn{padding:10px 8px}.pricing-hero{padding-bottom:20px}.pricing-grid .price-card{min-height:100%;display:flex;flex-direction:column}.pricing-grid .price-card .btn{margin-top:auto}.card,.btn,.input,select,textarea{transition:box-shadow .15s ease,border-color .15s ease,transform .15s ease}.btn:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(31,111,235,.18)}.btn.secondary:hover{box-shadow:0 10px 24px rgba(16,24,40,.08)}.input:focus,select:focus,textarea:focus{outline:0;border-color:#9cc3ff;box-shadow:0 0 0 4px rgba(31,111,235,.1)}@keyframes fadeIn{from{opacity:.65;transform:translateY(4px)}to{opacity:1;transform:none}}
@media(max-width:980px){.feature-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:820px){.hero-grid,.grid,.two,.stats,.app-shell,.feature-grid,.log-row,.dashboard-grid,.meta-grid,.form-grid,.trust-grid{grid-template-columns:minmax(0,1fr)}.nav-links{display:none}.hero h1{font-size:38px}.sidebar{position:static;width:100%;padding:16px}.menu{grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:6px}.menu a{font-size:13px;padding:9px 10px}.main{padding:16px}.metric-row{grid-template-columns:1fr}.topbar,.page-header{align-items:flex-start;gap:12px;flex-direction:column}.table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;max-width:100%}.table th,.table td{white-space:nowrap}.actions .btn,.actions button{flex:1 1 auto}.section{padding:38px 0}.inline-edit{min-width:0}.tabs,.tab-nav{overflow-x:auto;flex-wrap:nowrap;padding-bottom:6px}.tabs a,.tab-nav a{white-space:nowrap}.sticky-tabs{top:0}.result-buttons{grid-template-columns:1fr 1fr}.players-vs{grid-template-columns:1fr}.players-vs span{text-align:left}.filter-toolbar .action-buttons .btn{width:auto}}
@media(max-width:520px){.container{width:min(100% - 22px,1180px)}.hero h1{font-size:32px}.lead{font-size:16px}.section h2{font-size:26px}.card{padding:16px}.price{font-size:28px}.brand-logo{width:132px}.auth-logo .brand-logo{width:150px}.btn{width:100%;padding-inline:12px}.actions{width:100%}.actions .btn,.actions button{width:auto}.public-nav{height:auto;padding:14px 0}.footer-links{display:grid;gap:10px}.footer-links span{margin-right:0}}
@media print{.public-nav,.sidebar,.topbar,.tabs,.actions,.btn,.footer{display:none!important}.main{padding:0}.app-shell{display:block}.card,.table{box-shadow:none;border-color:#ddd}}