/* ── WAJD SHARED STYLES ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy: #1a1a5e;
  --navy-dark: #12124a;
  --blue: #3b5bdb;
  --cyan: #00bcd4;
  --cyan-light: rgba(0,188,212,.1);
  --yellow: #f5a623;
  --light-bg: #f0f2f8;
  --white: #ffffff;
  --text-dark: #1a1a3e;
  --text-mid: #555577;
  --text-light: #9898b8;
  --error: #e53e3e;
  --success: #38a169;
  --border: rgba(0,0,0,.09);
  --shadow: 0 4px 24px rgba(26,26,94,.08);
  --shadow-lg: 0 8px 48px rgba(26,26,94,.12);
  --nav-h: 64px;

  /* ── Subject colour coding (canonical, one source of truth) ──
     Used across courses, Visual Lab, Practice, Arcade and reports. */
  --subj-maths: #c8861f;     --subj-maths-soft: #faf2e2;
  --subj-science: #2f9e6e;   --subj-science-soft: #ecf6f1;   /* biology / general science */
  --subj-chemistry: #5a4bd6; --subj-chemistry-soft: #ece9fb;
  --subj-physics: #4a64c4;   --subj-physics-soft: #e9ecf9;
  --subj-english: #cf5a86;   --subj-english-soft: #fbeaf1;
  --subj-computing: #7b5fc4; --subj-computing-soft: #efeafa;
  --subj-reasoning: #11838f; --subj-reasoning-soft: #e1f1f2;
}

/* Subject tag/badge utility: <span class="subj-tag subj-maths">Maths</span> */
.subj-tag { display: inline-block; font-size: .68rem; font-weight: 800; text-transform: uppercase; letter-spacing: .4px; border-radius: 12px; padding: 3px 10px; }
.subj-maths    { color: var(--subj-maths);     background: var(--subj-maths-soft); }
.subj-science  { color: var(--subj-science);   background: var(--subj-science-soft); }
.subj-chemistry{ color: var(--subj-chemistry); background: var(--subj-chemistry-soft); }
.subj-physics  { color: var(--subj-physics);   background: var(--subj-physics-soft); }
.subj-english  { color: var(--subj-english);   background: var(--subj-english-soft); }
.subj-computing{ color: var(--subj-computing); background: var(--subj-computing-soft); }
.subj-reasoning{ color: var(--subj-reasoning); background: var(--subj-reasoning-soft); }

html { scroll-behavior: smooth; }
body { font-family: 'Nunito', sans-serif; background: var(--light-bg); color: var(--text-dark); overflow-x: hidden; }

/* ── NAV ── */
.site-nav {
  background: white; padding: 0 48px; height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 200;
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
}
.nav-logo { display: flex; align-items: center; gap: 9px; text-decoration: none; }
.nav-logo-icon { width: 36px; height: 36px; background: linear-gradient(135deg, var(--cyan), var(--blue)); border-radius: 9px; display: flex; align-items: center; justify-content: center; font-size: 18px; flex-shrink: 0; }
.nav-logo span { font-family: 'Poppins', sans-serif; font-weight: 800; font-size: 1.35rem; color: var(--navy); }
.nav-links { display: flex; align-items: center; gap: 6px; list-style: none; }
.nav-links a { text-decoration: none; color: var(--text-dark); font-weight: 700; font-size: .88rem; padding: 7px 13px; border-radius: 10px; transition: background .18s, color .18s; }
.nav-links a:hover, .nav-links a.active { background: var(--cyan-light); color: var(--cyan); }
.nav-right { display: flex; align-items: center; gap: 12px; }
.nav-search { display: flex; align-items: center; background: var(--light-bg); border-radius: 24px; padding: 7px 16px; gap: 8px; border: 1.5px solid transparent; transition: border-color .2s; }
.nav-search:focus-within { border-color: var(--cyan); }
.nav-search input { border: none; background: transparent; font-family: 'Nunito', sans-serif; font-size: .84rem; color: var(--text-dark); outline: none; width: 150px; }
.nav-search input::placeholder { color: var(--text-light); }
.nav-icon-btn { width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center; background: var(--light-bg); border: none; cursor: pointer; font-size: 1rem; position: relative; transition: background .2s; }
.nav-icon-btn:hover { background: var(--cyan-light); }
.nav-badge-dot { position: absolute; top: 4px; right: 4px; width: 8px; height: 8px; background: var(--yellow); border-radius: 50%; border: 1.5px solid white; }
.btn-login { background: var(--yellow); color: var(--navy); border: none; border-radius: 24px; padding: 8px 22px; font-family: 'Nunito', sans-serif; font-weight: 800; font-size: .88rem; cursor: pointer; transition: transform .2s, box-shadow .2s; text-decoration: none; display: inline-block; }
.btn-login:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(245,166,35,.4); }
.nav-user-wrap { position: relative; }
.nav-user { display: flex; align-items: center; gap: 8px; cursor: pointer; background: none; border: 1.5px solid var(--border); border-radius: 24px; padding: 5px 12px 5px 6px; font-family: 'Nunito',sans-serif; }
.nav-user:hover { border-color: var(--cyan); }
.nav-user .nav-uname { font-weight: 800; font-size: .85rem; color: var(--navy); }
.nav-user svg { color: var(--text-light); }
.nav-avatar { width: 32px; height: 32px; border-radius: 50%; background: linear-gradient(135deg, var(--cyan), var(--blue)); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 15px; flex-shrink: 0; }
.nav-menu { position: absolute; right: 0; top: calc(100% + 8px); background: #fff; border: 1px solid var(--border); border-radius: 12px; box-shadow: 0 12px 30px rgba(20,28,60,.14); min-width: 180px; padding: 6px; display: none; z-index: 120; }
.nav-user-wrap.open .nav-menu { display: block; }
.nav-menu a { display: block; padding: 10px 14px; border-radius: 8px; text-decoration: none; color: var(--navy); font-weight: 700; font-size: .88rem; }
.nav-menu a:hover { background: var(--light-bg); }
/* The user-menu chip replaces the .btn-login wherever it sits. On dark headers
   (.page-head, e.g. Analytics) the navy name was invisible, so flip it to white. */
.page-head .nav-user { border-color: rgba(255,255,255,.3); }
.page-head .nav-user .nav-uname { color: #fff; }
.page-head .nav-user svg { color: rgba(255,255,255,.7); }
.page-head .nav-user:hover { border-color: var(--cyan); }
.nav-menu a[data-logout] { color: var(--error); border-top: 1px solid var(--border); margin-top: 4px; border-radius: 0 0 8px 8px; }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--text-dark); border-radius: 2px; }

/* ── FOOTER ── */
.site-footer { background: #0d0d3d; color: white; padding: 60px 80px 24px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; margin-bottom: 48px; }
.footer-logo { display: flex; align-items: center; gap: 8px; font-family: 'Poppins', sans-serif; font-weight: 800; font-size: 1.25rem; color: white; margin-bottom: 14px; text-decoration: none; }
.footer-col p { color: rgba(255,255,255,.45); font-size: .83rem; line-height: 1.7; margin-bottom: 10px; }
.footer-col address { font-style: normal; color: rgba(255,255,255,.45); font-size: .8rem; line-height: 1.9; }
.footer-col h4 { font-family: 'Poppins', sans-serif; font-weight: 700; font-size: .95rem; color: white; margin-bottom: 18px; padding-bottom: 9px; border-bottom: 2px solid var(--cyan); display: inline-block; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 9px; }
.footer-links a { color: rgba(255,255,255,.5); text-decoration: none; font-size: .83rem; transition: color .2s; }
.footer-links a:hover { color: var(--cyan); }
.footer-socials { display: flex; gap: 9px; margin-bottom: 18px; }
.footer-socials a { width: 32px; height: 32px; border-radius: 50%; background: rgba(255,255,255,.08); display: flex; align-items: center; justify-content: center; color: white; text-decoration: none; font-size: .78rem; transition: background .2s; }
.footer-socials a:hover { background: var(--cyan); }
.app-btns { display: flex; flex-direction: column; gap: 9px; }
.app-btn { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.12); border-radius: 10px; padding: 8px 14px; color: white; font-size: .72rem; cursor: pointer; text-align: left; transition: background .2s; font-family: 'Nunito', sans-serif; }
.app-btn:hover { background: rgba(255,255,255,.16); }
.app-btn strong { display: block; font-size: .82rem; margin-top: 1px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.07); padding-top: 22px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
.footer-bottom p { color: rgba(255,255,255,.35); font-size: .8rem; }
.footer-bottom-links { display: flex; gap: 18px; }
.footer-bottom-links a { color: rgba(255,255,255,.35); text-decoration: none; font-size: .8rem; transition: color .2s; }
.footer-bottom-links a:hover { color: white; }
/* Social row + country picker, injected by shared.js into the footer */
.footer-social { display: flex; gap: 14px; align-items: center; }
.footer-social a { color: rgba(255,255,255,.5); display: inline-flex; transition: color .2s, transform .2s; }
.footer-social a:hover { color: #fff; transform: translateY(-2px); }
.footer-social svg { width: 20px; height: 20px; }
.footer-country { display: inline-flex; align-items: center; gap: 8px; }
.footer-country label { color: rgba(255,255,255,.35); font-size: .8rem; }
.footer-country select { background: rgba(255,255,255,.06); color: rgba(255,255,255,.8); border: 1px solid rgba(255,255,255,.14); border-radius: 9px; padding: 6px 10px; font-family: 'Nunito',sans-serif; font-weight: 700; font-size: .8rem; cursor: pointer; }

/* ── COMMON UTILITIES ── */
.section-label { display: inline-block; background: rgba(0,188,212,.1); color: var(--cyan); border-radius: 20px; padding: 4px 16px; font-size: .78rem; font-weight: 800; margin-bottom: 10px; border: 1px solid rgba(0,188,212,.22); }
.section-title { font-family: 'Poppins', sans-serif; font-size: 1.9rem; font-weight: 800; color: var(--text-dark); margin-bottom: 8px; }
.section-sub { color: var(--text-light); font-size: .88rem; margin-bottom: 36px; }
.btn-primary { display: inline-flex; align-items: center; gap: 7px; background: linear-gradient(90deg, var(--cyan), var(--blue)); color: white; border: none; border-radius: 28px; padding: 12px 26px; font-family: 'Nunito', sans-serif; font-weight: 800; font-size: .92rem; cursor: pointer; transition: transform .2s, box-shadow .2s; text-decoration: none; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(59,91,219,.3); }
.btn-outline { display: inline-flex; align-items: center; gap: 7px; background: transparent; border: 2px solid var(--cyan); color: var(--cyan); border-radius: 28px; padding: 10px 22px; font-family: 'Nunito', sans-serif; font-weight: 800; font-size: .9rem; cursor: pointer; transition: background .2s, color .2s; text-decoration: none; }
.btn-outline:hover { background: var(--cyan); color: white; }
.card { background: white; border-radius: 20px; padding: 28px; box-shadow: var(--shadow); }
.stars { color: var(--yellow); }
.tag-pill { display: inline-block; background: var(--cyan-light); color: var(--cyan); border: 1px solid rgba(0,188,212,.2); border-radius: 20px; padding: 3px 12px; font-size: .75rem; font-weight: 700; }
.btn-enroll { display: inline-flex; align-items: center; gap: 4px; background: var(--yellow); color: var(--navy); border: none; border-radius: 20px; padding: 7px 16px; font-family: 'Nunito', sans-serif; font-weight: 800; font-size: .8rem; cursor: pointer; text-decoration: none; transition: transform .2s; }
.btn-enroll:hover { transform: scale(1.04); }

/* ── Shared interactive question card (questions.js) ── */
.wq-card { background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 22px 24px; margin-bottom: 16px; box-shadow: var(--shadow); }
.wq-num { font-family: 'Poppins', sans-serif; font-weight: 800; color: var(--blue); font-size: .95rem; }
.wq-marks { float: right; font-size: .78rem; color: var(--text-light); font-weight: 700; }
.wq-prompt { font-weight: 700; font-size: 1.18rem; line-height: 1.6; margin: 8px 0 14px; white-space: pre-wrap; color: var(--text-dark); }
.wq-diagram { display: block; width: 100%; max-width: 380px; height: auto; margin: 6px 0 16px; background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 8px; }
.wq-opts { list-style: none; display: grid; gap: 10px; margin-bottom: 14px; }
.wq-opt { border: 2px solid var(--border); border-radius: 12px; padding: 13px 16px; font-size: 1.08rem; cursor: pointer; transition: all .15s; }
.wq-opt:hover { border-color: var(--cyan); }
.wq-opt.correct { border-color: var(--success); background: rgba(56,161,105,.1); font-weight: 700; }
.wq-opt.wrong { border-color: var(--error); background: rgba(229,62,62,.07); }
.wq-answer-row { display: flex; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
.wq-input { flex: 1; min-width: 200px; border: 2px solid var(--border); border-radius: 12px; padding: 13px 16px; font-family: 'Nunito', sans-serif; font-size: 1.08rem; outline: none; transition: border-color .15s; }
.wq-input:focus { border-color: var(--cyan); }
.wq-input:disabled { background: var(--light-bg); }
.wq-check { background: var(--cyan); color: #fff; border: none; border-radius: 12px; padding: 0 24px; font-family: 'Nunito', sans-serif; font-weight: 800; font-size: 1rem; cursor: pointer; }
.wq-check:hover { filter: brightness(1.05); }
.wq-feedback { font-weight: 800; margin-bottom: 10px; display: none; font-size: 1.02rem; }
.wq-feedback.show { display: block; }
.wq-feedback.ok { color: var(--success); }
.wq-feedback.no { color: #9a6b12; }
.wq-reveal { background: var(--light-bg); border: none; border-radius: 10px; padding: 10px 18px; font-family: 'Nunito', sans-serif; font-weight: 800; font-size: .95rem; color: var(--navy); cursor: pointer; }
.wq-solution { margin-top: 14px; padding: 14px 16px; background: rgba(0,188,212,.06); border-left: 3px solid var(--cyan); border-radius: 0 10px 10px 0; font-size: 1.05rem; line-height: 1.7; white-space: pre-wrap; display: none; }
.wq-solution.show { display: block; }

/* Footer newsletter signup (consented, double opt-in) */
.footer-newsletter { max-width: 1200px; margin: 0 auto 22px; padding: 22px 24px; display: flex; align-items: center; justify-content: space-between; gap: 18px 28px; flex-wrap: wrap; border: 1px solid rgba(255,255,255,.14); border-radius: 16px; background: rgba(255,255,255,.04); }
.footer-newsletter .nl-copy strong { font-family: 'Poppins',sans-serif; font-size: 1.05rem; color: #fff; display: block; }
.footer-newsletter .nl-copy p { color: rgba(255,255,255,.6); font-size: .86rem; margin-top: 3px; }
.footer-newsletter .nl-form { display: flex; gap: 8px; flex: 1; min-width: 260px; max-width: 440px; }
.footer-newsletter .nl-form input { flex: 1; border: 1.5px solid rgba(255,255,255,.2); border-radius: 10px; padding: 11px 13px; font-family: inherit; font-size: .92rem; background: rgba(255,255,255,.95); color: var(--navy); }
.footer-newsletter .nl-form button { white-space: nowrap; }

/* Site-wide announcement banner (admin auto-publish) */
.wajd-announce { background: linear-gradient(90deg, var(--blue), var(--cyan)); color: #fff; padding: 10px 44px 10px 18px; position: relative; text-align: center; font-weight: 700; font-size: .9rem; }
.wajd-announce a { color: #fff; text-decoration: underline; font-weight: 800; }
.wajd-announce b { font-family: 'Poppins',sans-serif; }
.wajd-announce .x { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); background: none; border: none; color: #fff; font-size: 1.2rem; cursor: pointer; line-height: 1; opacity: .8; }
.wajd-announce .x:hover { opacity: 1; }

/* WAJD brand badge: WAJDQuiz, the WAJD Method, etc. Styled, consistent, on-brand. */
.wb { display: inline-flex; align-items: center; gap: 7px; border-radius: 20px; padding: 5px 13px 5px 6px; font-family: 'Poppins',sans-serif; font-weight: 800; font-size: .72rem; letter-spacing: .3px; text-decoration: none; vertical-align: middle; }
.wb img { width: 20px; height: 20px; border-radius: 6px; flex-shrink: 0; }
.wb-dark { background: var(--navy); color: #fff; }
.wb-light { background: #fff; border: 1.5px solid var(--border); color: var(--navy); }
.wb-ghost { background: rgba(255,255,255,.12); color: #fff; }
.wb .tm { color: var(--cyan); font-weight: 900; margin-left: 1px; }
.wb b { font-weight: 900; }

/* Reusable tile (the Visual Lab card look, used across Courses, Home, etc.) */
.tile-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.tile { background: #fff; border: 1px solid var(--border); border-left: 5px solid var(--c1, var(--cyan)); border-radius: 18px; box-shadow: 0 6px 20px rgba(20,28,60,.06); padding: 22px 24px; text-align: left; text-decoration: none; color: inherit; display: flex; gap: 18px; transition: transform .18s, box-shadow .18s; }
.tile:hover { transform: translateY(-4px); box-shadow: 0 16px 34px rgba(20,28,60,.13); }
.tile .ic { width: 54px; height: 54px; flex-shrink: 0; border-radius: 14px; background: var(--c2, var(--cyan-light)); color: var(--c1, var(--cyan)); display: flex; align-items: center; justify-content: center; }
.tile .body { flex: 1; min-width: 0; }
.tile .pill { display: inline-block; font-size: .64rem; font-weight: 800; text-transform: uppercase; letter-spacing: .4px; color: var(--c1, var(--cyan)); background: var(--c2, var(--cyan-light)); border-radius: 14px; padding: 3px 10px; margin-bottom: 8px; }
.tile h3, .tile h4 { font-family: 'Poppins',sans-serif; font-size: 1.1rem; color: var(--navy); margin-bottom: 5px; }
.tile p { color: var(--text-mid); font-size: .86rem; line-height: 1.5; }
.tile .go { display: inline-block; margin-top: 10px; font-weight: 800; color: var(--c1, var(--cyan)); font-size: .9rem; }
@media (max-width: 760px) { .tile-grid { grid-template-columns: 1fr; } }

/* Share sheet (WAJD.share) */
.wajd-share-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; margin: 8px 0 14px; }
.wajd-share-btn { display: flex; flex-direction: column; align-items: center; gap: 6px; text-decoration: none; color: var(--text-mid); font-size: .72rem; font-weight: 700; }
.wajd-share-btn .ic { width: 46px; height: 46px; border-radius: 50%; background: var(--pc, var(--navy)); color: #fff; display: flex; align-items: center; justify-content: center; transition: transform .15s; }
.wajd-share-btn .ic svg { width: 22px; height: 22px; }
.wajd-share-btn:hover .ic { transform: translateY(-3px); }
.wajd-share-link { display: flex; gap: 8px; margin-bottom: 6px; }
.wajd-share-link input { flex: 1; border: 1.5px solid var(--border); border-radius: 10px; padding: 9px 11px; font-family: inherit; font-size: .82rem; color: var(--text-mid); background: var(--light-bg); }
@media (max-width: 460px) { .wajd-share-grid { grid-template-columns: repeat(3, 1fr); } }

/* Branded modal (WAJD.confirm / WAJD.prompt) */
.wajd-modal { position: fixed; inset: 0; background: rgba(16,20,46,.5); display: none; align-items: center; justify-content: center; z-index: 10000; padding: 20px; }
.wajd-modal.show { display: flex; }
.wajd-modal-card { background: #fff; border-radius: 20px; box-shadow: var(--shadow-lg); padding: 26px; width: 100%; max-width: 420px; font-family: 'Nunito', sans-serif; }
.wajd-modal-card h3 { font-family: 'Poppins', sans-serif; color: var(--navy); font-size: 1.15rem; margin-bottom: 6px; }
.wajd-modal-card p { color: var(--text-mid); line-height: 1.55; margin-bottom: 16px; }
.wajd-modal-card input { width: 100%; border: 1.5px solid var(--border); border-radius: 12px; padding: 12px 14px; font-family: 'Nunito', sans-serif; font-size: .95rem; outline: none; margin-bottom: 16px; }
.wajd-modal-card input:focus { border-color: var(--cyan); }
.wajd-modal-actions { display: flex; gap: 10px; justify-content: flex-end; }
.wajd-modal-actions .btn-primary.danger { background: var(--error); }

/* Toast */
.toast { position: fixed; top: 22px; right: 22px; background: white; border-radius: 14px; padding: 13px 18px; box-shadow: 0 8px 32px rgba(0,0,0,.14); display: flex; align-items: center; gap: 11px; font-weight: 700; font-size: .88rem; z-index: 9999; transform: translateX(120%); transition: transform .4s cubic-bezier(.34,1.56,.64,1); max-width: 320px; border-left: 4px solid var(--cyan); font-family: 'Nunito', sans-serif; }
.toast.show { transform: translateX(0); }
.toast.error { border-left-color: var(--error); }
.toast.success { border-left-color: var(--success); }
.toast.info { border-left-color: var(--yellow); }

@media (max-width: 900px) {
  .site-nav { padding: 8px 20px; flex-wrap: wrap; height: auto; }
  .nav-search { display: none; }
  .hamburger { display: flex; }
  /* Collapsible mobile menu: hidden until the hamburger toggles .open on .site-nav */
  .nav-links { display: none; width: 100%; order: 4; flex-direction: column; align-items: stretch; gap: 4px; padding: 8px 0 4px; }
  .site-nav.open .nav-links { display: flex; }
  .nav-links a { padding: 12px 14px; border-radius: 10px; font-size: 1rem; }
  .site-footer { padding: 40px 24px 20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
  .section-title { font-size: 1.5rem; }
}