/* ============================================================
   PhilGreek — style.css  (locked design: modern, 4-color)
   Blue = brand/primary. Orange/Green/Blue/Yellow color-code the
   exam categories. Green = correct, Orange = your wrong answer.
   ============================================================ */
:root{
  --blue:#2F6BED;      --blue-dark:#1E52C9;   --blue-tint:#E8F0FE;
  --orange:#FB7A2A;    --orange-tint:#FEEEE2;
  --green:#12B26A;     --green-tint:#E1F6EC;
  --yellow:#F7B32B;    --yellow-tint:#FEF3DC;
  --ink:#141B2E;       --ink-soft:#38435C;    --muted:#6A768C;
  --bg:#FFFFFF;        --surface:#F6F8FC;      --border:#E7ECF3;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --maxw:1120px; --r-lg:20px; --r:14px; --r-sm:10px; --pill:100px;
  --shadow-sm:0 1px 2px rgba(20,27,46,.05);
  --shadow:0 6px 24px rgba(20,27,46,.08);
  --shadow-lg:0 18px 48px rgba(20,27,46,.12);
  --gap:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--bg);line-height:1.6;
  font-size:17px;-webkit-font-smoothing:antialiased;letter-spacing:-.01em}
h1,h2,h3{margin:0;font-weight:800;line-height:1.1;color:var(--ink);letter-spacing:-.03em}
p{margin:0 0 1em}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
main{display:block}

.spectrum{height:5px;width:100%;
  background:linear-gradient(90deg,var(--blue) 0 25%,var(--green) 25% 50%,var(--yellow) 50% 75%,var(--orange) 75% 100%)}

/* HEADER */
.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.85);
  backdrop-filter:saturate(1.6) blur(10px);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:21px;color:var(--ink);letter-spacing:-.03em}
.brand:hover{text-decoration:none}
.brand-mark{width:36px;height:36px;border-radius:11px;color:#fff;display:grid;place-items:center;
  font-weight:800;font-size:19px;background:linear-gradient(135deg,var(--blue),#5B8DFF)}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--ink-soft);font-size:15px;font-weight:600;padding:9px 14px;border-radius:var(--r-sm)}
.nav-links a:hover{background:var(--surface);text-decoration:none}
.nav-links a.active{color:var(--blue)}
.nav-cta{background:var(--blue);color:#fff !important;padding:10px 18px !important;box-shadow:var(--shadow-sm)}
.nav-cta:hover{background:var(--blue-dark)}
.nav-toggle{display:none;background:none;border:1px solid var(--border);border-radius:var(--r-sm);padding:9px 12px;font-size:17px;cursor:pointer}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-family:var(--sans);
  font-size:16px;font-weight:700;padding:14px 26px;border-radius:var(--r-sm);border:1.5px solid transparent;
  cursor:pointer;transition:.16s;letter-spacing:-.01em;text-align:center}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 6px 18px rgba(47,107,237,.28)}
.btn-primary:hover{background:var(--blue-dark);text-decoration:none;transform:translateY(-1px)}
.btn-secondary{background:#fff;color:var(--blue);border-color:#CADBFB}
.btn-secondary:hover{background:var(--blue-tint);text-decoration:none}
.btn-ghost{background:var(--surface);color:var(--ink-soft)}
.btn-ghost:hover{background:#EDF1F8;text-decoration:none}
.btn-sm{padding:9px 16px;font-size:14px}

/* HERO */
.hero{position:relative;overflow:hidden;background:#EAF1F8 url('../img/philgreek-bg.jpg') right center/cover no-repeat;
  min-height:540px;display:flex;align-items:center}
.hero::before{content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.92) 34%,rgba(255,255,255,.55) 52%,rgba(255,255,255,0) 68%)}
.hero .wrap{position:relative;z-index:1;padding-top:60px;padding-bottom:60px}
.hero-inner{max-width:46%}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:800;letter-spacing:.04em;
  text-transform:uppercase;color:var(--blue);background:var(--blue-tint);padding:7px 14px;border-radius:var(--pill);margin-bottom:22px}
.eyebrow .dots{display:inline-flex;gap:4px}
.eyebrow .dots i{width:7px;height:7px;border-radius:50%;display:inline-block}
.hero h1{font-size:clamp(34px,5vw,56px);max-width:15ch}
.hero .lead{font-size:20px;color:var(--ink-soft);max-width:46ch;margin-top:18px;letter-spacing:-.01em}
.hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin-top:30px}

/* FIL NOTE */
.fil-note{position:relative;background:var(--blue-tint);border:1px solid #D5E4FD;border-radius:var(--r-lg);
  padding:20px 24px 20px 112px;min-height:104px;display:flex;flex-direction:column;justify-content:center;margin:0 0 22px}
.fil-note .fil{position:absolute;left:14px;bottom:0;width:82px;height:auto;
  filter:drop-shadow(0 6px 10px rgba(20,27,46,.16))}
.fil-note b{color:var(--blue-dark);font-size:15px;display:block;margin-bottom:2px}
.fil-note p{margin:0;color:var(--ink-soft);font-size:15px}
.fil-note.solo{max-width:640px}

/* FIL floating bot */
.fil-fab{position:fixed;right:22px;bottom:22px;z-index:40;display:flex;align-items:center;gap:10px;
  background:#fff;border:1px solid var(--border);border-radius:var(--pill);padding:8px 18px 8px 8px;
  box-shadow:var(--shadow-lg);cursor:pointer;font-family:var(--sans);font-weight:700;color:var(--ink)}
.fil-fab img{width:44px;height:44px;object-fit:contain;object-position:bottom}
.fil-fab small{display:block;font-weight:600;color:var(--muted);font-size:12px}

/* SECTION */
.section{padding:64px 0}
.section.tight{padding:40px 0}
.section.alt{background:var(--surface)}
.section-head{max-width:60ch;margin-bottom:36px}
.section-head h2{font-size:clamp(26px,4vw,38px)}
.section-head p{color:var(--muted);margin-top:12px;font-size:18px}
.page-head{padding:44px 0 8px}
.page-head h1{font-size:clamp(28px,4vw,40px)}
.page-head p{color:var(--muted);margin-top:10px}

/* CARDS */
.grid{display:grid;gap:var(--gap);grid-template-columns:repeat(3,1fr)}
.grid.two{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:30px;box-shadow:var(--shadow-sm)}
.card h3{font-size:21px;margin-bottom:9px}
.card p{color:var(--muted);margin:0}
.card-icon{width:52px;height:52px;border-radius:15px;display:grid;place-items:center;font-size:24px;font-weight:800;margin-bottom:18px}
.ic-blue{background:var(--blue-tint);color:var(--blue)}
.ic-green{background:var(--green-tint);color:var(--green)}
.ic-orange{background:var(--orange-tint);color:var(--orange)}
.ic-yellow{background:var(--yellow-tint);color:#B57E00}
.card-link{display:block;text-decoration:none;transition:.16s;color:inherit}
.card-link:hover{text-decoration:none;box-shadow:var(--shadow-lg);transform:translateY(-3px);border-color:transparent}
.card-link .go{color:var(--blue);font-weight:700;font-size:15px;margin-top:16px;display:inline-block}

/* CATEGORIES */
.cat-grid{display:grid;gap:16px;grid-template-columns:repeat(3,1fr)}
.cat{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--border);
  border-radius:var(--r);padding:18px 20px;box-shadow:var(--shadow-sm);border-left-width:5px;color:inherit;text-decoration:none}
.cat:hover{text-decoration:none;box-shadow:var(--shadow)}
.cat .swatch{width:38px;height:38px;border-radius:11px;flex-shrink:0}
.cat b{font-size:17px;display:block}
.cat span{font-size:14px;color:var(--muted)}
.cat.c-blue{border-left-color:var(--blue)}   .c-blue .swatch{background:var(--blue-tint)}
.cat.c-green{border-left-color:var(--green)} .c-green .swatch{background:var(--green-tint)}
.cat.c-orange{border-left-color:var(--orange)}.c-orange .swatch{background:var(--orange-tint)}
.cat.c-yellow{border-left-color:var(--yellow)}.c-yellow .swatch{background:var(--yellow-tint)}

/* STEPS */
.steps{display:grid;gap:var(--gap);grid-template-columns:repeat(4,1fr)}
.step .num{font-size:16px;font-weight:800;color:#fff;width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;margin-bottom:16px}
.s1 .num{background:var(--blue)} .s2 .num{background:var(--green)}
.s3 .num{background:var(--yellow)} .s4 .num{background:var(--orange)}
.step h3{font-size:18px;margin-bottom:7px}
.step p{color:var(--muted);font-size:15px;margin:0}

/* FORM */
.form-card{max-width:460px;margin:0 auto;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-lg);padding:36px;box-shadow:var(--shadow)}
.form-card h3{font-size:25px;margin-bottom:6px}
.form-card .sub{color:var(--muted);margin-bottom:24px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:700;color:var(--ink-soft);margin-bottom:8px}
.field input,.field select{width:100%;padding:14px 15px;font-size:16px;font-family:var(--sans);border:1.5px solid var(--border);
  border-radius:var(--r-sm);background:#fff;color:var(--ink)}
.field input:focus,.field select:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px var(--blue-tint)}
.field .hint{font-size:13px;color:var(--muted);margin-top:7px}
.form-card .btn{width:100%}
.form-foot{text-align:center;margin-top:18px;font-size:15px;color:var(--muted)}

/* ALERTS */
.alert{border-radius:var(--r);padding:14px 18px;margin:0 0 20px;font-size:15px;border:1px solid}
.alert-error{background:var(--orange-tint);border-color:#F6C7A6;color:#9A3B12}
.alert-ok{background:var(--green-tint);border-color:#B7E6CC;color:#0B6B41}
.alert ul{margin:6px 0 0;padding-left:20px}

/* QUESTION */
.quiz-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:32px;
  box-shadow:var(--shadow);max-width:720px;margin:0 auto 22px}
.q-meta{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:800;letter-spacing:.03em;
  text-transform:uppercase;padding:5px 12px;border-radius:var(--pill);margin-bottom:16px;background:var(--orange-tint);color:#C85A12}
.q-meta.c-blue{background:var(--blue-tint);color:var(--blue-dark)}
.q-meta.c-green{background:var(--green-tint);color:#0B6B41}
.q-meta.c-yellow{background:var(--yellow-tint);color:#8A5A00}
.q-text{font-size:22px;font-weight:800;letter-spacing:-.02em;margin-bottom:22px}
.opt{display:flex;align-items:center;gap:13px;padding:15px 18px;border:1.5px solid var(--border);
  border-radius:var(--r-sm);margin-bottom:11px;cursor:pointer;transition:.13s;font-weight:500}
.opt:hover{border-color:var(--blue);background:var(--blue-tint)}
.opt input{accent-color:var(--blue);width:19px;height:19px;flex-shrink:0}
.opt.correct{border-color:var(--green);background:var(--green-tint)}
.opt.wrong{border-color:var(--orange);background:var(--orange-tint)}
.tag{font-size:12px;font-weight:800;padding:3px 10px;border-radius:var(--pill);margin-left:auto;white-space:nowrap}
.tag.ok{background:var(--green);color:#fff}
.tag.no{background:var(--orange);color:#fff}
.q-explain{color:var(--muted);font-size:15px;margin:16px 0 0}

/* RESULT */
.result-banner{border-radius:var(--r-lg);padding:30px 32px;display:flex;align-items:center;gap:26px;
  border:1px solid var(--border);background:#fff;box-shadow:var(--shadow);max-width:720px;margin:0 auto 24px}
.score-ring{width:96px;height:96px;border-radius:50%;flex-shrink:0;display:grid;place-items:center;
  font-weight:800;font-size:24px;color:var(--ink)}
.score-ring span{background:#fff;width:70px;height:70px;border-radius:50%;display:grid;place-items:center}
.result-banner h3{font-size:23px;margin-bottom:5px}
.result-banner p{color:var(--muted);margin:0}

/* PROGRESS */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:26px}
.stat{background:#fff;border:1px solid var(--border);border-radius:var(--r);padding:20px 22px}
.stat .n{font-size:32px;font-weight:800;letter-spacing:-.03em}
.stat:nth-child(1) .n{color:var(--blue)} .stat:nth-child(2) .n{color:var(--green)}
.stat:nth-child(3) .n{color:var(--orange)} .stat:nth-child(4) .n{color:#B57E00}
.stat .l{font-size:14px;color:var(--muted)}
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--r-lg);background:#fff;box-shadow:var(--shadow-sm)}
table{width:100%;border-collapse:collapse;font-size:15px;min-width:600px}
thead th{text-align:left;background:var(--surface);color:var(--ink-soft);font-weight:700;padding:15px 18px;
  border-bottom:1px solid var(--border);white-space:nowrap}
tbody td{padding:15px 18px;border-bottom:1px solid var(--border)}
tbody tr:last-child td{border-bottom:none}
.badge{font-size:12px;font-weight:800;padding:4px 11px;border-radius:var(--pill);white-space:nowrap}
.badge.done{background:var(--green-tint);color:var(--green)}
.badge.prog{background:var(--yellow-tint);color:#B57E00}

/* FOOTER */
.site-footer{background:var(--ink);color:#C3CBDB;padding:56px 0 32px;margin-top:8px}
.footer-top{display:flex;flex-wrap:wrap;justify-content:space-between;gap:32px;margin-bottom:32px}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;color:#fff;margin-bottom:12px}
.footer-brand .brand-mark{width:32px;height:32px;border-radius:10px;font-size:17px}
.footer-intro{max-width:38ch;color:#8C99B0;font-size:15px}
.footer-col h4{font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:#7A889F;margin:0 0 13px}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:9px}
.footer-col a{color:#C3CBDB;font-size:15px}
.footer-col a:hover{color:#fff}
.disclaimer{border-top:1px solid #2A3450;padding-top:22px;font-size:13px;color:#8090A8;line-height:1.6}

/* Prose (about/privacy/terms) */
.prose{max-width:720px}
.prose h2{font-size:24px;margin:28px 0 10px}
.prose p,.prose li{color:var(--ink-soft);font-size:17px}
.prose ul{padding-left:22px}

@media(max-width:900px){
  .hero-inner{max-width:60%}
  .grid,.grid.two,.cat-grid,.steps{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .hero{background-position:78% center}
  .hero::before{background:linear-gradient(180deg,rgba(255,255,255,.94),rgba(255,255,255,.9))}
  .hero-inner{max-width:100%}
  .grid,.grid.two,.cat-grid,.steps{grid-template-columns:1fr}
  .result-banner{flex-direction:column;text-align:center}
  .nav-links{display:none;position:absolute;top:70px;left:0;right:0;flex-direction:column;align-items:stretch;
    gap:2px;background:#fff;border-bottom:1px solid var(--border);padding:14px 22px}
  .nav-links.open{display:flex}
  .nav-toggle{display:block}
  .fil-fab small{display:none}
}

/* ============ v2: exam simulation, media, grading ============ */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
@media(max-width:560px){.grid-2{grid-template-columns:1fr}}
.kit-label{font-weight:700;color:var(--muted);font-size:13px;text-transform:uppercase;letter-spacing:.04em;margin:8px 0 12px}
.hint{color:var(--muted);font-size:13px;margin-top:8px}

/* question header row */
.q-top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px}
.pts-chip{flex-shrink:0;background:var(--tint);color:var(--brand-dark);font-weight:700;font-size:12.5px;padding:4px 10px;border-radius:999px;white-space:nowrap}

/* context / media */
.context-box{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:12px 14px;margin:10px 0;color:var(--ink);font-size:14.5px}
.q-audio{width:100%;margin:10px 0}
.q-image{max-width:100%;border-radius:12px;border:1px solid var(--border);margin:10px 0}

/* text answers */
.text-answer{width:100%;padding:12px 14px;border:1.5px solid var(--border);border-radius:12px;font:inherit;background:#fff}
.text-answer:focus{outline:none;border-color:var(--brand)}
textarea.text-answer{resize:vertical;min-height:110px}

/* exam section band */
.section-band{background:linear-gradient(90deg,var(--tint),#fff);border:1px solid var(--border);border-left:5px solid var(--brand);border-radius:14px;padding:14px 18px;margin:26px 0 14px}
.section-band h2{margin:0 0 4px;font-size:19px}
.section-band p{margin:0;color:var(--muted);font-size:14px}

/* exam CTA on tests page */
.exam-cta{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;background:linear-gradient(120deg,var(--brand),var(--brand-dark));color:#fff;border-radius:20px;padding:26px 28px}
.exam-cta h2{margin:6px 0 8px;font-size:24px}
.exam-cta p{margin:0;opacity:.92;max-width:560px}
.exam-cta .eyebrow{color:#fff;opacity:.9}
.exam-cta .btn-primary{background:#fff;color:var(--brand-dark)}

/* exam result */
.exam-result{background:#fff;border:1px solid var(--border);border-radius:20px;padding:24px;display:grid;grid-template-columns:220px 1fr;gap:24px;align-items:center}
@media(max-width:620px){.exam-result{grid-template-columns:1fr}}
.exam-result.is-pass{border-color:var(--green);box-shadow:0 0 0 3px rgba(18,178,106,.12)}
.exam-result.is-fail{border-color:var(--orange);box-shadow:0 0 0 3px rgba(251,122,42,.12)}
.exam-score{text-align:center;padding:10px}
.exam-score .big{font-size:44px;font-weight:800;color:var(--ink);line-height:1}
.exam-score .big span{font-size:22px;color:var(--muted);font-weight:700}
.exam-score .lbl{color:var(--muted);font-size:13px;margin-top:6px}
.exam-score .verdict{margin-top:12px;font-weight:800;font-size:18px}
.is-pass .verdict{color:var(--green)} .is-fail .verdict{color:var(--orange)}
.exam-groups .grp{margin-bottom:14px}
.grp-top{display:flex;justify-content:space-between;font-size:14px;margin-bottom:6px}
.grp-top small{color:var(--muted)}
.bar{height:10px;background:var(--surface);border-radius:999px;overflow:hidden}
.bar i{display:block;height:100%;border-radius:999px}
.thresholds{color:var(--muted);font-size:13px;margin:8px 0 0}

/* grading + answer boxes */
.answer-box{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:12px 14px;margin:8px 0;font-size:14.5px;line-height:1.5}
.pending-chip{display:inline-block;background:#FFF4E6;color:#B4530F;font-weight:700;font-size:13px;padding:6px 12px;border-radius:999px;margin-top:6px}
.graded-chip{display:inline-block;background:#E7F7EF;color:#0B7A47;font-weight:700;font-size:13px;padding:6px 12px;border-radius:999px;margin-top:6px}
.grade-row{display:flex;gap:14px;align-items:flex-end;flex-wrap:wrap;margin-top:8px}

/* alerts + badges additions */
.alert-progress{background:#FFF4E6;border:1px solid #FCD9B0;color:#8A4B12;border-radius:12px;padding:12px 16px;margin-bottom:16px}
.badge.fail{background:#FBE7DC;color:#B4530F}