/* ============================================================
   English as a Universal Currency — style.css
   Logo charter: orange, sky blue, coral, purple on white
   ============================================================ */
:root{
--orange:#F8A92B;--orange-600:#E19312;--orange-100:#FEF3DC;
--blue:#45AEE8;--blue-600:#2B8FC7;--blue-100:#E3F3FC;
--coral:#E9584C;--coral-100:#FDE9E7;
--purple:#52297E;--purple-900:#251440;--purple-100:#EFE7F8;
--ink:#22304A;--muted:#68788E;--line:#E4EDF5;--bg:#F7FAFD;--white:#fff;
--ok:#1F9D61;--ko:#D64545;
--font-display:"Nunito","Segoe UI",sans-serif;
--font-body:"Public Sans","Segoe UI",sans-serif;
--radius:16px;--shadow:0 10px 30px rgba(34,48,71,.08);--shadow-lg:0 24px 60px rgba(34,48,71,.15);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);color:var(--ink);background:var(--bg);line-height:1.6;display:flex;flex-direction:column;min-height:100vh}
img{max-width:100%;display:block}
a{color:var(--blue-600);text-decoration:none}a:hover{color:var(--purple)}
.container{width:min(1120px,92%);margin-inline:auto}
.container-narrow{width:min(760px,92%);margin-inline:auto}
.muted{color:var(--muted)}
.good{color:var(--ok);font-weight:700}.bad{color:var(--ko);font-weight:700}
/* ---------- Buttons & badges ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;font-weight:700;font-size:15px;line-height:1;border:2px solid transparent;cursor:pointer;transition:.18s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:linear-gradient(135deg,var(--orange),var(--orange-600));color:#fff;box-shadow:0 8px 22px rgba(248,169,43,.35)}
.btn-primary:hover{color:#fff}
.btn-outline{border-color:var(--blue);color:var(--blue-600)}
.btn-outline:hover{background:var(--blue-100)}
.btn-ghost{color:var(--purple)}.btn-ghost:hover{background:var(--purple-100)}
.btn-danger{background:var(--ko);color:#fff}
.btn-sm{padding:9px 16px;font-size:13.5px}
.btn-block{width:100%;justify-content:center}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.4px;text-transform:uppercase}
.badge-blue{background:var(--blue-100);color:var(--blue-600)}
.badge-gold{background:var(--orange-100);color:#9A6A08}
.badge-ok{background:#E2F6EC;color:var(--ok)}
.badge-ko{background:#FDE7E7;color:var(--ko)}
/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:24px;padding:12px 0}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand-logo{width:48px;height:48px;object-fit:contain}
.brand-text{font-family:var(--font-display);font-weight:900;font-size:19px;color:var(--purple);line-height:1.05;display:flex;flex-direction:column}
.brand-text small{font-family:var(--font-body);font-weight:700;font-size:10px;letter-spacing:2px;text-transform:uppercase;color:var(--orange-600)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{padding:9px 13px;border-radius:8px;font-weight:700;font-size:14.5px;color:var(--ink)}
.nav-link:hover{background:var(--blue-100)}
.nav-link.is-active{color:var(--blue-600);box-shadow:inset 0 -3px 0 var(--orange)}
.nav-actions{display:flex;align-items:center;gap:8px;margin-left:12px;padding-left:16px;border-left:1px solid var(--line)}
.nav-toggle{display:none;margin-left:auto;background:none;border:0;font-size:22px;color:var(--purple);cursor:pointer}
/* ---------- Hero ---------- */
.hero{background:radial-gradient(800px 420px at 85% -10%,rgba(69,174,232,.18),transparent 60%),radial-gradient(700px 420px at -10% 110%,rgba(248,169,43,.16),transparent 60%),#fff;overflow:hidden}
.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;padding:76px 0 88px}
.hero-kicker{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:800;letter-spacing:2.5px;text-transform:uppercase;color:var(--purple)}
.hero-kicker .dot{width:9px;height:9px;border-radius:50%;background:var(--orange);animation:pulse 2s infinite}
.hero-title{font-family:var(--font-display);font-weight:900;font-size:clamp(2.2rem,4.5vw,3.7rem);line-height:1.1;margin:18px 0 16px}
.hero-title em{font-style:normal;color:var(--orange-600)}
.hero-sub{color:var(--muted);font-size:17px;max-width:54ch}
.hero-ctas{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-proof{display:flex;flex-wrap:wrap;gap:22px;list-style:none;margin-top:30px;font-size:14px;color:var(--muted)}
.hero-proof i{color:var(--ok);margin-right:7px}
.logo-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:34px;box-shadow:var(--shadow-lg);animation:floatIn .9s ease both}
.logo-card img{max-width:340px;margin:0 auto}
/* ---------- Sections ---------- */
.section{padding:76px 0}
.section-head{max-width:640px;margin-bottom:40px}
.section-head.center{margin-inline:auto;text-align:center}
.section-kicker{font-size:12.5px;font-weight:800;letter-spacing:3px;text-transform:uppercase;color:var(--orange-600)}
.section-title{font-family:var(--font-display);font-weight:900;font-size:clamp(1.6rem,3vw,2.4rem);margin-top:8px;color:var(--purple)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);transition:.25s}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.step-card{padding:28px 24px;border-top:5px solid var(--blue)}
.step-card:nth-child(2){border-top-color:var(--orange)}
.step-card:nth-child(3){border-top-color:var(--coral)}
.step-num{font-family:var(--font-display);font-size:44px;font-weight:900;color:var(--blue-100)}
.step-card h3{font-size:18px;margin:10px 0 8px;color:var(--purple)}
.step-card p{font-size:14.5px;color:var(--muted)}
/* ---------- Forms & alerts ---------- */
.form-group{margin-bottom:18px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
label{display:block;font-weight:700;font-size:14px;color:var(--purple);margin-bottom:7px}
label .req{color:var(--coral)}
input[type="text"],input[type="email"],input[type="password"],input[type="tel"],input[type="number"],select,textarea{width:100%;padding:12px 14px;border-radius:10px;border:1.5px solid var(--line);background:#fbfdff;font-family:inherit;font-size:15px;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3.5px rgba(69,174,232,.18)}
textarea{resize:vertical;min-height:110px}
.form-hint{font-size:12.5px;color:var(--muted);margin-top:5px}
.flash-zone{padding-top:18px}.flash-zone:empty{display:none}
.alert{display:flex;align-items:center;gap:10px;padding:13px 18px;border-radius:12px;font-weight:600;font-size:14.5px;margin-bottom:12px;border:1px solid;animation:fadeDown .4s ease}
.alert-success{background:#E7F7EE;border-color:#BFE8D2;color:#166B43}
.alert-error{background:#FDECEC;border-color:#F5C6C6;color:#A32626}
.alert-info{background:var(--blue-100);border-color:#B9DFF5;color:var(--blue-600)}
/* ---------- Auth ---------- */
.auth-wrap{padding:70px 0 90px}
.auth-card{max-width:540px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-lg);padding:40px 42px}
.auth-head{text-align:center;margin-bottom:26px}
.auth-head .brand-logo{width:72px;height:72px;margin:0 auto 12px}
.auth-head h1{font-family:var(--font-display);font-size:26px;color:var(--purple)}
.auth-head p{color:var(--muted);font-size:14.5px;margin-top:6px}
.auth-foot{text-align:center;margin-top:22px;font-size:14px;color:var(--muted)}
/* ---------- Dashboard ---------- */
.page-pad{padding:56px 0 90px}
.page-title-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;margin-bottom:30px}
.page-title-row h1{font-family:var(--font-display);font-size:clamp(1.6rem,3vw,2.2rem);color:var(--purple)}
.stat-card{display:flex;align-items:center;gap:18px;padding:22px}
.stat-icon{width:54px;height:54px;flex:none;border-radius:14px;display:grid;place-items:center;font-size:21px;background:var(--blue-100);color:var(--blue-600)}
.stat-icon.gold{background:var(--orange-100);color:var(--orange-600)}
.stat-card .num{font-family:var(--font-display);font-size:25px;font-weight:900;color:var(--purple)}
.stat-card .lbl{font-size:13px;color:var(--muted)}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px}
.panel-title{font-family:var(--font-display);font-size:20px;color:var(--purple);margin-bottom:20px;display:flex;align-items:center;gap:10px}
.panel-title i{color:var(--orange)}
.dash-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:28px;align-items:start}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:14.5px}
thead th{text-align:left;padding:12px 14px;font-size:12px;letter-spacing:1.2px;text-transform:uppercase;color:var(--muted);border-bottom:2px solid var(--line);white-space:nowrap}
tbody td{padding:13px 14px;border-bottom:1px solid var(--line)}
tbody tr:hover{background:#F4FAFE}
.empty-state{text-align:center;padding:44px 20px;color:var(--muted)}
.empty-state i{font-size:34px;color:var(--blue);margin-bottom:12px}
/* ---------- Exam & timer ---------- */
.exam-shell{padding:40px 0 90px}
.timer-bar{position:sticky;top:71px;z-index:40;display:flex;align-items:center;gap:22px;background:var(--purple-900);color:#fff;border-radius:14px;padding:14px 22px;margin-bottom:34px;box-shadow:var(--shadow-lg)}
.timer-bar.warn{background:#8A5B0D}
.timer-bar.danger{background:#8C2323;animation:pulse 1s infinite}
.timer-info{display:flex;align-items:center;gap:14px}
.timer-label{font-size:12.5px;letter-spacing:1.5px;text-transform:uppercase;color:#CBB8E8}
.timer-display{font-family:var(--font-display);font-size:30px;font-weight:900;color:var(--orange);min-width:96px;font-variant-numeric:tabular-nums}
.timer-track{flex:1;height:8px;border-radius:6px;background:rgba(255,255,255,.15);overflow:hidden}
.timer-progress{height:100%;width:100%;border-radius:6px;background:linear-gradient(90deg,var(--orange),var(--orange-600));transition:width 1s linear}
.save-status{font-size:13px;color:#CBB8E8;min-width:180px;text-align:right}
.question-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px;margin-bottom:22px}
.q-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.q-num{font-weight:800;font-size:13px;letter-spacing:1px;text-transform:uppercase;color:var(--purple)}
.q-points{margin-left:auto;font-size:12.5px;font-weight:700;color:var(--orange-600)}
.q-text{font-size:17.5px;font-weight:700;margin-bottom:18px}
.choice{display:flex;align-items:center;gap:12px;padding:13px 16px;border:1.5px solid var(--line);border-radius:11px;margin-bottom:10px;cursor:pointer;transition:.15s}
.choice:hover{border-color:var(--blue);background:var(--blue-100)}
.choice input{accent-color:var(--blue);width:18px;height:18px;flex:none}
.choice:has(input:checked){border-color:var(--blue);background:var(--blue-100);box-shadow:inset 0 0 0 1px var(--blue)}
.short-input{max-width:420px}
.exam-actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;margin-top:34px}
#exam-form.is-locked .q-body{pointer-events:none;opacity:.6}
/* ---------- Result ---------- */
.score-hero{text-align:center;padding:56px 30px;border-radius:20px;background:linear-gradient(150deg,var(--purple-900),var(--purple));color:#fff;margin-bottom:36px}
.score-circle{width:170px;height:170px;margin:0 auto 22px;border-radius:50%;display:grid;place-items:center;position:relative}
.score-circle::before{content:"";position:absolute;inset:10px;border-radius:50%;background:var(--purple-900)}
.score-circle>div{position:relative;text-align:center}
.score-num{font-family:var(--font-display);font-size:42px;font-weight:900;color:var(--orange)}
.score-sub{font-size:13px;color:#CBB8E8}
.level-badge{display:inline-flex;align-items:center;gap:10px;background:rgba(248,169,43,.15);border:1px solid rgba(248,169,43,.5);padding:10px 22px;border-radius:999px;font-weight:700;color:var(--orange);margin-top:10px}
.result-meta{display:flex;flex-wrap:wrap;justify-content:center;gap:28px;margin-top:22px;font-size:14px;color:#CBB8E8}
.result-meta i{color:var(--orange);margin-right:6px}
.answer-row{border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;margin-bottom:16px;background:#fff;border-left:5px solid}
.answer-row.ok{border-left-color:var(--ok)}.answer-row.ko{border-left-color:var(--ko)}
.answer-q{font-weight:700;margin-bottom:8px}
.answer-line{font-size:14.5px;margin:3px 0}
/* ---------- Google-Forms-style summary ---------- */
.gf-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px;margin-bottom:22px}
.gf-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:6px}
.gf-q{font-weight:700;font-size:16px}
.gf-row{display:grid;grid-template-columns:1fr 140px 90px;align-items:center;gap:12px;margin-bottom:10px}
.gf-label{font-size:14px}
.gf-track{height:10px;border-radius:999px;background:var(--line);overflow:hidden}
.gf-fill{height:100%;border-radius:999px;background:var(--blue)}
.gf-fill.good{background:var(--ok)}
.gf-count{font-size:13px;color:var(--muted);text-align:right}
/* ---------- Admin ---------- */
.admin-shell{display:grid;grid-template-columns:250px 1fr;min-height:100vh;background:#F2F6FB}
.admin-sidebar{background:linear-gradient(180deg,var(--purple-900),var(--purple));color:#fff;padding:26px 18px;display:flex;flex-direction:column;gap:26px;position:sticky;top:0;height:100vh}
.side-brand{display:flex;align-items:center;gap:10px;color:#fff;font-family:var(--font-display);font-weight:900;font-size:19px}
.side-logo{width:44px;height:44px;object-fit:contain;border-radius:10px;background:#fff;padding:3px}
.side-brand small{display:block;font-family:var(--font-body);font-size:10px;letter-spacing:2px;text-transform:uppercase;color:var(--orange)}
.side-nav{display:flex;flex-direction:column;gap:4px}
.side-footer{margin-top:auto;display:flex;flex-direction:column;gap:4px;border-top:1px solid rgba(255,255,255,.12);padding-top:16px}
.side-link{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:10px;color:#CBB8E8;font-weight:600;font-size:14.5px}
.side-link:hover{background:rgba(255,255,255,.08);color:#fff}
.side-link.is-active{background:var(--orange);color:var(--purple-900)}
.side-link i{width:20px;text-align:center}
.admin-main{padding:30px 36px 70px}
.admin-topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:26px}
.admin-title{font-family:var(--font-display);font-size:27px;color:var(--purple)}
.admin-user{font-weight:700;color:var(--purple);background:#fff;border:1px solid var(--line);padding:8px 16px;border-radius:999px;font-size:14px}
.admin-user i{color:var(--orange);margin-right:6px}
.toolbar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px}
.search-form{display:flex;gap:10px}
.search-form input{min-width:280px}
/* ---------- Footer ---------- */
.site-footer{background:var(--purple-900);color:#CBB8E8;margin-top:auto}
.footer-inner{text-align:center;padding:52px 0 40px}
.footer-logo{width:84px;height:84px;margin:0 auto 16px;border-radius:20px;background:#fff;padding:8px}
.footer-copy{margin-top:12px;font-size:13px;opacity:.7}
/* ---------- Animations ---------- */
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
@keyframes floatIn{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}
@keyframes fadeDown{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:none}}
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.revealed{opacity:1;transform:none}
/* ---------- Responsive ---------- */
@media(max-width:1080px){
.hero-inner{grid-template-columns:1fr;gap:44px;padding:60px 0 70px}
.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
.dash-grid{grid-template-columns:1fr}
}
@media(max-width:860px){
.nav-toggle{display:block}
.nav-links{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:4px;background:#fff;border-bottom:1px solid var(--line);padding:16px 4vw 22px;box-shadow:var(--shadow-lg)}
.nav-links.open{display:flex}
.nav-actions{margin:12px 0 0;padding:12px 0 0;border-left:0;border-top:1px solid var(--line);flex-wrap:wrap}
.admin-shell{grid-template-columns:1fr}
.admin-sidebar{position:static;height:auto;flex-direction:row;flex-wrap:wrap;align-items:center;gap:12px;padding:14px 18px}
.side-nav,.side-footer{flex-direction:row;margin:0;border:0;padding:0;flex-wrap:wrap}
.admin-main{padding:22px 18px 60px}
.timer-bar{flex-wrap:wrap;top:64px}
.save-status{text-align:left;width:100%}
.gf-row{grid-template-columns:1fr;gap:6px}
.gf-count{text-align:left}
}
@media(max-width:620px){
.grid-3,.grid-4{grid-template-columns:1fr}
.form-row{grid-template-columns:1fr}
.section{padding:60px 0}
.auth-card{padding:30px 22px}
.search-form{width:100%}.search-form input{min-width:0;flex:1}
}