*{margin:0;padding:0;box-sizing:border-box}
:root{--navy:#001f3f;--red:#cc0000;--white:#ffffff;--gold:#ffd700;--light-bg:#f4f6f9;--dark-text:#1a1a2e;--card-shadow:0 4px 20px rgba(0,31,63,0.15)}
html{scroll-behavior:auto} /* Tab navigation - no smooth scroll */
body{font-family:'Segoe UI',Arial,sans-serif;color:var(--dark-text);background:var(--white);overflow-x:hidden}

/* ===== NAV ===== */
nav{position:sticky;top:0;z-index:1000;background:var(--navy);box-shadow:0 2px 20px rgba(0,0,0,0.4)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;height:68px}
.nav-logo{display:flex;align-items:center;gap:12px;text-decoration:none}
.nav-logo img{width:46px;height:46px;border-radius:50%;border:2px solid var(--gold);object-fit:cover}
.nav-logo-text{color:var(--white);font-size:1rem;font-weight:700;line-height:1.2}
.nav-logo-text span{color:var(--gold);display:block;font-size:.75rem;font-weight:400}
.nav-links{display:flex;align-items:center;gap:6px;list-style:none}
.nav-links a{color:#ccd9e8;text-decoration:none;padding:8px 14px;border-radius:6px;font-size:.9rem;font-weight:500;transition:all .2s}
.nav-links a:hover{color:var(--white);background:rgba(255,255,255,.1)}
.btn-start{background:var(--gold)!important;color:var(--navy)!important;font-weight:700!important;border-radius:8px!important;padding:9px 20px!important;font-size:.9rem}
.btn-start:hover{background:#e6c200!important;transform:translateY(-1px)}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.hamburger span{display:block;width:24px;height:2px;background:var(--white);border-radius:2px;transition:.3s}
.mobile-menu{display:none;background:var(--navy);padding:16px 20px;border-top:1px solid rgba(255,255,255,.1)}
.mobile-menu a{display:block;color:#ccd9e8;text-decoration:none;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.07);font-size:1rem;font-weight:500}
.mobile-menu a:last-child{border-bottom:none;color:var(--gold);font-weight:700;margin-top:8px}
@media(max-width:768px){.nav-links{display:none}.hamburger{display:flex}}

/* ===== HERO ===== */
.hero{position:relative;background:linear-gradient(135deg,var(--navy) 0%,#003070 50%,#001830 100%);min-height:92vh;display:flex;align-items:center;overflow:hidden}
.stars-canvas{position:absolute;inset:0;pointer-events:none}
.hero-inner{max-width:1200px;margin:0 auto;padding:80px 20px;position:relative;z-index:2;text-align:center}
.hero-badge{display:inline-block;background:rgba(255,215,0,.15);border:1px solid var(--gold);color:var(--gold);font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:6px 16px;border-radius:20px;margin-bottom:24px}
.hero h1{font-size:clamp(2rem,5vw,3.8rem);color:var(--white);font-weight:900;line-height:1.15;margin-bottom:20px;text-shadow:0 2px 20px rgba(0,0,0,.4)}
.hero h1 em{color:var(--gold);font-style:normal}
.hero-sub{font-size:clamp(1rem,2.5vw,1.25rem);color:#b8cde0;max-width:680px;margin:0 auto 40px;line-height:1.7}
.hero-ctas{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:15px 32px;border-radius:10px;font-size:1rem;font-weight:700;text-decoration:none;cursor:pointer;border:none;transition:all .2s;font-family:inherit}
.btn-gold{background:var(--gold);color:var(--navy)}
.btn-gold:hover{background:#e6c200;transform:translateY(-2px);box-shadow:0 8px 24px rgba(255,215,0,.35)}
.btn-outline{background:transparent;color:var(--white);border:2px solid rgba(255,255,255,.5)}
.btn-outline:hover{border-color:var(--white);background:rgba(255,255,255,.08);transform:translateY(-2px)}
.hero-flags{display:flex;justify-content:center;gap:8px;margin-top:48px;opacity:.4}
.hero-flags span{width:8px;height:8px;border-radius:50%;background:var(--white);display:inline-block}

/* ===== STATS BAR ===== */
.stats-bar{background:var(--red);padding:20px}
.stats-inner{max-width:1200px;margin:0 auto;display:flex;justify-content:space-around;flex-wrap:wrap;gap:16px}
.stat-item{text-align:center;color:var(--white)}
.stat-num{font-size:1.8rem;font-weight:900;line-height:1}
.stat-label{font-size:.8rem;opacity:.9;text-transform:uppercase;letter-spacing:.05em;margin-top:4px}

/* ===== SECTIONS SHARED ===== */
section{padding:80px 20px}
.section-inner{max-width:1200px;margin:0 auto}
.section-tag{display:inline-block;background:rgba(0,31,63,.08);color:var(--navy);font-size:.75rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;padding:5px 14px;border-radius:20px;margin-bottom:16px;border:1px solid rgba(0,31,63,.15)}
.section-title{font-size:clamp(1.6rem,3.5vw,2.4rem);font-weight:900;color:var(--navy);margin-bottom:16px;line-height:1.2}
.section-sub{font-size:1.05rem;color:#5a6a7e;max-width:640px;line-height:1.7;margin-bottom:48px}
.text-center{text-align:center}
.text-center .section-sub{margin:0 auto 48px}

/* ===== TAB NAVIGATION (NO SCROLLING) ===== */
.content-section { display: none; }
.content-section.active { display: block; }

/* ===== ABOUT ===== */
#about{background:var(--light-bg)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-top:8px}
@media(max-width:700px){.about-grid{grid-template-columns:1fr}}
.about-card{background:var(--white);border-radius:16px;padding:32px;box-shadow:var(--card-shadow);border-top:4px solid var(--navy);position:relative;overflow:hidden}
.about-card.red-top{border-top-color:var(--red)}
.about-card-icon{font-size:2.5rem;margin-bottom:16px}
.about-card h3{font-size:1.3rem;font-weight:800;color:var(--navy);margin-bottom:12px}
.about-card p{color:#5a6a7e;line-height:1.7;font-size:.95rem}
.about-card .tag{display:inline-block;background:var(--navy);color:var(--white);font-size:.7rem;font-weight:700;padding:4px 10px;border-radius:20px;margin-top:14px;letter-spacing:.05em}
.about-card.red-top .tag{background:var(--red)}
.about-list{list-style:none;margin-top:12px}
.about-list li{padding:6px 0;color:#5a6a7e;font-size:.9rem;display:flex;align-items:center;gap:8px}
.about-list li::before{content:"✓";color:var(--gold);font-weight:900;font-size:1rem}

/* ===== FLASHCARDS ===== */
#flashcards{background:linear-gradient(180deg,#f0f4ff 0%,var(--white) 100%)}
.flashcard-controls{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:28px}
.fc-filter{display:flex;gap:8px;flex-wrap:wrap}
.fc-filter-btn{padding:7px 16px;border-radius:20px;border:2px solid #d1dae6;background:var(--white);color:#5a6a7e;font-size:.82rem;font-weight:600;cursor:pointer;transition:all .2s;font-family:inherit;box-shadow:0 2px 6px rgba(0,0,0,.05)}
.fc-filter-btn:hover{border-color:var(--navy);color:var(--navy);transform:translateY(-1px)}
.fc-filter-btn.active{border-color:var(--navy);background:var(--navy);color:var(--white);box-shadow:0 4px 12px rgba(0,31,63,.3)}
.fc-actions{display:flex;gap:10px;margin-left:auto}
.fc-btn{padding:9px 20px;border-radius:8px;border:none;font-size:.9rem;font-weight:700;cursor:pointer;transition:all .2s;font-family:inherit}
.fc-btn-nav{background:var(--navy);color:var(--white);box-shadow:0 3px 10px rgba(0,31,63,.3)}
.fc-btn-nav:hover{background:#003070;transform:translateY(-2px);box-shadow:0 6px 16px rgba(0,31,63,.4)}
.fc-btn-shuffle{background:linear-gradient(135deg,var(--gold),#ffb700);color:var(--navy);box-shadow:0 3px 10px rgba(255,215,0,.4)}
.fc-btn-shuffle:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(255,215,0,.5)}
.flashcard-progress{margin-bottom:24px}
.progress-label{display:flex;justify-content:space-between;font-size:.82rem;color:#5a6a7e;margin-bottom:8px;font-weight:600}
.progress-bar{height:10px;background:#e0e7f0;border-radius:6px;overflow:hidden;box-shadow:inset 0 2px 4px rgba(0,0,0,.06)}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--navy),var(--red),var(--gold));border-radius:6px;transition:width .5s cubic-bezier(.4,0,.2,1)}

/* Flashcard 3D Scene */
.flashcard-scene{perspective:1400px;-webkit-perspective:1400px;width:100%;max-width:640px;height:390px;margin:0 auto 28px;cursor:pointer;filter:drop-shadow(0 20px 40px rgba(0,31,63,.18))}
.flashcard-card{width:100%;height:100%;position:relative;transform-style:preserve-3d;-webkit-transform-style:preserve-3d;transition:transform .7s cubic-bezier(.4,0,.2,1);-webkit-transition:-webkit-transform .7s cubic-bezier(.4,0,.2,1)}
.flashcard-scene:hover{box-shadow:0 24px 44px rgba(0,31,63,.22)}
.flashcard-card.flipped{transform:rotateY(180deg);-webkit-transform:rotateY(180deg)}
.flashcard-face{position:absolute;inset:0;border-radius:24px;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px;backface-visibility:hidden;-webkit-backface-visibility:hidden;overflow:hidden}

/* FRONT — Rich Navy with stars/decorations */
.flashcard-front{
  background:linear-gradient(145deg,#001f3f 0%,#003580 60%,#001f3f 100%);
  box-shadow:0 20px 60px rgba(0,31,63,.45),inset 0 1px 0 rgba(255,255,255,.08);
}
/* Decorative stars on front */
.flashcard-front::before{
  content:'★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★';
  position:absolute;top:14px;left:0;right:0;text-align:center;
  color:rgba(255,215,0,.12);font-size:.7rem;letter-spacing:6px;pointer-events:none
}
/* Eagle watermark */
.flashcard-front::after{
  content:'🦅';
  position:absolute;bottom:14px;right:18px;font-size:2.8rem;
  opacity:.07;pointer-events:none;transform:scaleX(-1)
}
.flashcard-front .q-num{
  color:var(--gold);font-size:.75rem;font-weight:800;letter-spacing:.12em;
  text-transform:uppercase;margin-bottom:14px;
  background:rgba(255,215,0,.12);padding:4px 14px;border-radius:20px;
  border:1px solid rgba(255,215,0,.25)
}
.flashcard-front .q-category{
  color:rgba(255,255,255,.45);font-size:.72rem;font-weight:600;
  text-transform:uppercase;letter-spacing:.1em;margin-top:18px;
  display:flex;align-items:center;gap:6px
}
.flashcard-front .q-category::before,.flashcard-front .q-category::after{content:'—';opacity:.4}
.flashcard-front .q-text{color:var(--white);font-size:1.22rem;font-weight:700;text-align:center;line-height:1.55;text-shadow:0 1px 8px rgba(0,0,0,.3)}

/* BACK — Gold parchment with seal */
.flashcard-back{
  background:linear-gradient(145deg,#fffdf0 0%,#fff8d6 50%,#fffbea 100%);
  box-shadow:0 20px 60px rgba(0,31,63,.25),inset 0 1px 0 rgba(255,255,255,.8);
  transform:rotateY(180deg);
  -webkit-transform:rotateY(180deg);
  border:3px solid var(--gold);
}
.flashcard-back::before{
  content:'';position:absolute;inset:8px;border-radius:16px;
  border:1px dashed rgba(180,140,0,.25);pointer-events:none
}
.flashcard-back::after{
  content:'🇺🇸';position:absolute;bottom:12px;right:16px;
  font-size:2.2rem;opacity:.12;pointer-events:none
}
.flashcard-back .a-label{
  color:var(--navy);font-size:.72rem;font-weight:800;letter-spacing:.12em;
  text-transform:uppercase;margin-bottom:14px;opacity:.45;
  display:flex;align-items:center;gap:8px
}
.flashcard-back .a-label::before,.flashcard-back .a-label::after{content:'✦';font-size:.6rem;opacity:.5}
.flashcard-back .a-text{color:var(--navy);font-size:1.08rem;font-weight:700;text-align:center;line-height:1.65}

/* Flip hint & known buttons */
.flip-hint{text-align:center;color:#8fa3b8;font-size:.82rem;margin-bottom:16px}
.flip-hint span{display:inline-flex;align-items:center;gap:6px;background:linear-gradient(135deg,#f0f4ff,#e8edf8);padding:6px 16px;border-radius:20px;font-weight:600;border:1px solid #dde5f0;box-shadow:0 2px 6px rgba(0,0,0,.06)}
.fc-known-btns{display:flex;gap:16px;justify-content:center;margin-top:12px}
.fc-known-btn{padding:12px 32px;border-radius:12px;border:none;font-size:.95rem;font-weight:700;cursor:pointer;transition:all .2s;font-family:inherit;letter-spacing:.02em}
.fc-known-yes{background:linear-gradient(135deg,#e6f9ef,#d4f5e3);color:#1a7d45;border:2px solid #a3e6c0;box-shadow:0 3px 10px rgba(26,125,69,.15)}
.fc-known-yes:hover{background:linear-gradient(135deg,#1a7d45,#22a05a);color:#fff;transform:translateY(-2px);box-shadow:0 6px 20px rgba(26,125,69,.35)}
.fc-known-no{background:linear-gradient(135deg,#fef0f0,#fde0e0);color:var(--red);border:2px solid #f5c0c0;box-shadow:0 3px 10px rgba(204,0,0,.1)}
.fc-known-no:hover{background:linear-gradient(135deg,var(--red),#e80000);color:#fff;transform:translateY(-2px);box-shadow:0 6px 20px rgba(204,0,0,.3)}
.streak-badge{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,#fff3cd,#ffd700);color:var(--navy);font-weight:800;font-size:.9rem;padding:10px 22px;border-radius:24px;margin-bottom:20px;border:2px solid var(--gold);box-shadow:0 4px 16px rgba(255,215,0,.4);animation:pulse-badge 2s infinite}
@keyframes pulse-badge{0%,100%{box-shadow:0 4px 16px rgba(255,215,0,.4)}50%{box-shadow:0 4px 28px rgba(255,215,0,.7)}}

/* ===== QUIZ ===== */
#quiz{background:var(--light-bg)}
.quiz-version-tabs{display:flex;gap:12px;margin-bottom:28px;flex-wrap:wrap}
.quiz-tab{padding:10px 24px;border-radius:8px;border:2px solid #d1dae6;background:var(--white);color:#5a6a7e;font-size:.9rem;font-weight:700;cursor:pointer;transition:.2s;font-family:inherit}
.quiz-tab.active{border-color:var(--navy);background:var(--navy);color:var(--white)}
.quiz-box{background:var(--white);border-radius:20px;padding:36px;box-shadow:var(--card-shadow);max-width:760px;margin:0 auto}
.quiz-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px;flex-wrap:wrap;gap:12px}
.quiz-progress-text{font-size:.85rem;color:#5a6a7e;font-weight:600}
.quiz-score-text{font-size:.85rem;color:var(--navy);font-weight:700}
.quiz-q-num{font-size:.8rem;color:var(--gold);font-weight:800;text-transform:uppercase;letter-spacing:.08em;margin-bottom:10px}
.quiz-question{font-size:1.15rem;font-weight:700;color:var(--navy);margin-bottom:24px;line-height:1.5}
.quiz-options{display:flex;flex-direction:column;gap:12px}
.quiz-option{padding:16px 20px;border:2px solid #d1dae6;border-radius:10px;background:var(--white);text-align:left;font-size:.95rem;font-weight:600;color:#3a4a5c;cursor:pointer;transition:.2s;font-family:inherit;line-height:1.4}
.quiz-option:hover:not(:disabled){border-color:var(--navy);background:#f0f4ff;color:var(--navy)}
.quiz-option.correct{border-color:#1a7d45;background:#e6f9ef;color:#1a7d45}
.quiz-option.wrong{border-color:var(--red);background:#fef0f0;color:var(--red)}
.quiz-option:disabled{cursor:default}
.quiz-explanation{margin-top:20px;padding:16px;background:#f8f9fa;border-left:4px solid var(--gold);border-radius:0 8px 8px 0;font-size:.9rem;color:#4a5568;line-height:1.6;display:none}
.quiz-explanation.show{display:block}
.quiz-nav{display:flex;gap:12px;margin-top:24px;justify-content:flex-end}
.quiz-next-btn{padding:12px 28px;border-radius:8px;border:none;background:var(--navy);color:var(--white);font-size:.95rem;font-weight:700;cursor:pointer;transition:.2s;font-family:inherit}
.quiz-next-btn:hover{background:#003070}
.quiz-result{text-align:center;padding:20px 0;display:none}
.result-badge{display:inline-block;font-size:2rem;font-weight:900;padding:20px 48px;border-radius:16px;margin-bottom:20px;letter-spacing:.05em}
.result-pass{background:#e6f9ef;color:#1a7d45;border:3px solid #1a7d45}
.result-fail{background:#fef0f0;color:var(--red);border:3px solid var(--red)}
.result-score{font-size:3rem;font-weight:900;color:var(--navy)}
.result-sub{color:#5a6a7e;margin:10px 0 28px;font-size:1.05rem}
.btn-restart{padding:14px 32px;border-radius:10px;border:none;background:var(--navy);color:var(--white);font-size:1rem;font-weight:700;cursor:pointer;transition:.2s;font-family:inherit}
.btn-restart:hover{background:#003070;transform:translateY(-2px)}

/* ===== SHOP ===== */
#shop{background:var(--white)}
.shop-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;margin-bottom:32px}
.shop-card{background:var(--white);border-radius:16px;box-shadow:var(--card-shadow);overflow:hidden;border:1px solid #e8edf3;transition:.2s;display:flex;flex-direction:column}
.shop-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,31,63,.2)}
.shop-card.featured{border:2px solid var(--gold);position:relative}
.shop-badge-featured{position:absolute;top:14px;right:14px;background:var(--gold);color:var(--navy);font-size:.7rem;font-weight:800;padding:4px 10px;border-radius:12px;text-transform:uppercase}
.shop-img{height:200px;display:flex;align-items:center;justify-content:center;font-size:5rem;background:linear-gradient(135deg,#f0f4ff,#e8edf3)}
.shop-body{padding:24px;flex:1;display:flex;flex-direction:column}
.shop-title{font-size:1.05rem;font-weight:800;color:var(--navy);margin-bottom:8px}
.shop-desc{font-size:.85rem;color:#5a6a7e;line-height:1.6;flex:1;margin-bottom:16px}
.shop-price{font-size:1.6rem;font-weight:900;color:var(--red);margin-bottom:16px}
.shop-price span{font-size:.9rem;font-weight:400;color:#8fa3b8;text-decoration:line-through;margin-left:8px}
.btn-buy{display:block;text-align:center;padding:12px;border-radius:8px;border:none;background:var(--navy);color:var(--white);font-size:.95rem;font-weight:700;cursor:pointer;transition:.2s;font-family:inherit;text-decoration:none}
.btn-buy:hover{background:#003070;transform:translateY(-1px)}
.shop-note{text-align:center;color:#8fa3b8;font-size:.82rem;margin-top:8px}
.shop-size-badge{display:inline-block;background:linear-gradient(135deg,#f0f4ff,#e8edf8);color:var(--navy);font-size:.72rem;font-weight:700;padding:3px 10px;border-radius:20px;border:1px solid #dde5f0;margin-bottom:10px;letter-spacing:.02em}
.printful-note{background:#f8f9fa;border:1px solid #e0e7f0;border-radius:12px;padding:20px;text-align:center;color:#5a6a7e;font-size:.85rem}
.printful-note strong{color:var(--navy)}

/* ===== RESOURCES ===== */
#resources{background:var(--light-bg)}
.resources-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.resource-card{background:var(--white);border-radius:14px;padding:24px;box-shadow:var(--card-shadow);border-left:4px solid var(--navy);text-decoration:none;display:flex;align-items:flex-start;gap:16px;transition:.2s}
.resource-card:hover{transform:translateY(-3px);box-shadow:0 10px 30px rgba(0,31,63,.2);border-left-color:var(--red)}
.resource-icon{font-size:2rem;flex-shrink:0;width:48px;text-align:center}
.resource-title{font-size:.95rem;font-weight:800;color:var(--navy);margin-bottom:6px}
.resource-desc{font-size:.8rem;color:#5a6a7e;line-height:1.5}
.resource-url{font-size:.75rem;color:var(--red);margin-top:6px;font-weight:600;word-break:break-all}

/* ===== YOUTUBE ===== */
#youtube{background:var(--navy);padding:80px 20px}
#youtube .section-tag{background:rgba(255,215,0,.15);color:var(--gold);border-color:rgba(255,215,0,.3)}
#youtube .section-title{color:var(--white)}
#youtube .section-sub{color:#8fa3b8}
.yt-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.yt-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:24px;text-align:center;text-decoration:none;transition:.2s;display:flex;flex-direction:column;align-items:center;gap:12px}
.yt-card:hover{background:rgba(255,255,255,.12);transform:translateY(-3px);border-color:var(--gold)}
.yt-icon{font-size:2.5rem}
.yt-label{color:var(--white);font-size:.95rem;font-weight:700}
.yt-sub{color:#8fa3b8;font-size:.8rem}
.yt-main-btn{display:inline-flex;align-items:center;gap:10px;background:var(--red);color:var(--white);text-decoration:none;padding:16px 36px;border-radius:12px;font-size:1.05rem;font-weight:700;transition:.2s;margin-top:40px}
.yt-main-btn:hover{background:#a50000;transform:translateY(-2px);box-shadow:0 8px 24px rgba(204,0,0,.4)}
.yt-center{text-align:center}

/* ===== FOOTER ===== */
footer{background:#000e1f;padding:48px 20px 24px}
.footer-inner{max-width:1200px;margin:0 auto}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.08)}
@media(max-width:700px){.footer-top{grid-template-columns:1fr}}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;text-decoration:none}
.footer-brand img{width:40px;height:40px;border-radius:50%;border:2px solid var(--gold)}
.footer-brand-text{color:var(--white);font-weight:700;font-size:.95rem;line-height:1.2}
.footer-brand-text span{color:var(--gold);font-size:.75rem;font-weight:400;display:block}
.footer-desc{color:#8fa3b8;font-size:.85rem;line-height:1.7}
.footer-col h4{color:var(--white);font-size:.9rem;font-weight:700;margin-bottom:16px;text-transform:uppercase;letter-spacing:.06em}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{color:#8fa3b8;text-decoration:none;font-size:.85rem;transition:.2s}
.footer-col ul li a:hover{color:var(--gold)}
.footer-bottom{padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-copy{color:#5a6a7e;font-size:.8rem}
.footer-disclaimer{color:#4a5a6a;font-size:.75rem;max-width:500px;text-align:right;line-height:1.5}
@media(max-width:600px){.footer-disclaimer{text-align:left}}

/* ===== AUTH ===== */
.auth-btn{display:flex;align-items:center;gap:8px;padding:9px 18px;border-radius:8px;border:2px solid rgba(255,255,255,.2);background:rgba(255,255,255,.08);color:#fff;font-size:.85rem;font-weight:700;cursor:pointer;transition:all .2s;font-family:inherit}
.auth-btn:hover{background:rgba(255,255,255,.18);border-color:rgba(255,255,255,.4)}
.auth-btn.signed-in{background:rgba(255,215,0,.15);border-color:rgba(255,215,0,.4);color:var(--gold)}
.auth-avatar{width:28px;height:28px;border-radius:50%;border:2px solid var(--gold);object-fit:cover}
.auth-modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.65);z-index:99999;display:flex;align-items:center;justify-content:center;padding:20px;opacity:0;pointer-events:none;transition:.3s;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}
.auth-modal-overlay.open{opacity:1;pointer-events:all}
.auth-modal{background:#fff;border-radius:24px;padding:44px 40px;max-width:420px;width:100%;text-align:center;position:relative;transform:scale(.92);transition:.3s;box-shadow:0 24px 80px rgba(0,0,0,.25)}
.auth-modal-overlay.open .auth-modal{transform:scale(1)}
.auth-modal-close{position:absolute;top:14px;right:16px;background:none;border:none;font-size:1.4rem;cursor:pointer;color:#aaa;transition:.2s}
.auth-modal-close:hover{color:var(--navy)}
.auth-modal-logo{width:64px;height:64px;border-radius:50%;border:3px solid var(--gold);margin:0 auto 16px;display:block;object-fit:cover}
.auth-modal h2{font-size:1.4rem;font-weight:900;color:var(--navy);margin-bottom:8px}
.auth-modal p{color:#5a6a7e;font-size:.9rem;line-height:1.6;margin-bottom:28px}
.btn-google{display:flex;align-items:center;justify-content:center;gap:12px;width:100%;padding:14px 20px;border-radius:12px;border:2px solid #e0e7f0;background:#fff;color:#3a4a5c;font-size:1rem;font-weight:700;cursor:pointer;transition:all .2s;font-family:inherit;box-shadow:0 2px 8px rgba(0,0,0,.08)}
.btn-google:hover{border-color:#4285f4;box-shadow:0 4px 20px rgba(66,133,244,.2);transform:translateY(-1px)}
.btn-google svg{width:22px;height:22px;flex-shrink:0}
.auth-divider{display:flex;align-items:center;gap:12px;margin:20px 0;color:#aaa;font-size:.8rem}
.auth-divider::before,.auth-divider::after{content:'';flex:1;height:1px;background:#e8edf3}
.auth-input{width:100%;padding:13px 16px;border:2px solid #e0e7f0;border-radius:10px;font-size:.95rem;font-family:inherit;margin-bottom:12px;transition:.2s;outline:none;color:var(--dark-text)}
.auth-input:focus{border-color:var(--navy)}
.btn-auth-submit{width:100%;padding:14px;border:none;border-radius:10px;background:var(--navy);color:#fff;font-size:1rem;font-weight:800;cursor:pointer;transition:all .2s;font-family:inherit;margin-bottom:12px}
.btn-auth-submit:hover{background:#003580;transform:translateY(-1px)}
.auth-switch{font-size:.85rem;color:#5a6a7e}
.auth-switch a{color:var(--navy);font-weight:700;cursor:pointer;text-decoration:underline}
.auth-error{background:#fef0f0;color:var(--red);border:1px solid #f5c0c0;border-radius:8px;padding:10px 14px;font-size:.85rem;margin-bottom:14px;display:none}
/* User dropdown */
.user-dropdown{position:relative;display:inline-block}
.user-dropdown-menu{position:absolute;top:calc(100% + 10px);right:0;background:#fff;border-radius:14px;box-shadow:0 8px 32px rgba(0,0,0,.15);border:1px solid #e8edf3;min-width:220px;overflow:hidden;opacity:0;pointer-events:none;transform:translateY(-8px);transition:all .2s;z-index:1000}
.user-dropdown-menu.open{opacity:1;pointer-events:all;transform:translateY(0)}
.user-dropdown-header{padding:16px;border-bottom:1px solid #f0f4f8;text-align:left}
.user-dropdown-name{font-weight:800;color:var(--navy);font-size:.95rem}
.user-dropdown-email{color:#5a6a7e;font-size:.78rem;margin-top:2px}
.user-dropdown-item{display:flex;align-items:center;gap:10px;padding:12px 16px;color:#3a4a5c;font-size:.88rem;font-weight:600;cursor:pointer;transition:.15s;text-decoration:none}
.user-dropdown-item:hover{background:#f5f8ff;color:var(--navy)}
.user-dropdown-item.danger{color:var(--red)}
.user-dropdown-item.danger:hover{background:#fef0f0}

/* ===== MODAL ===== */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:9999;display:flex;align-items:center;justify-content:center;padding:20px;opacity:0;pointer-events:none;transition:.3s}
.modal-overlay.open{opacity:1;pointer-events:all}
.modal-box{background:var(--white);border-radius:20px;padding:40px;max-width:440px;width:100%;text-align:center;transform:scale(.9);transition:.3s;position:relative}
.modal-overlay.open .modal-box{transform:scale(1)}
.modal-close{position:absolute;top:16px;right:16px;background:none;border:none;font-size:1.5rem;cursor:pointer;color:#8fa3b8;transition:.2s}
.modal-close:hover{color:var(--navy)}
.modal-box h3{font-size:1.4rem;font-weight:800;color:var(--navy);margin:16px 0 8px}
.modal-box p{color:#5a6a7e;font-size:.9rem;line-height:1.6;margin-bottom:24px}
.modal-input{width:100%;padding:14px 16px;border:2px solid #d1dae6;border-radius:10px;font-size:1rem;font-family:inherit;margin-bottom:12px;transition:.2s;outline:none}
.modal-input:focus{border-color:var(--navy)}
.modal-submit{width:100%;padding:14px;border:none;border-radius:10px;background:var(--navy);color:var(--white);font-size:1rem;font-weight:700;cursor:pointer;transition:.2s;font-family:inherit}
.modal-submit:hover{background:#003070}
.modal-success{display:none;text-align:center;padding:20px 0}
.modal-success-icon{font-size:3rem;margin-bottom:12px}
.modal-success h4{color:#1a7d45;font-size:1.2rem;font-weight:800;margin-bottom:8px}
.modal-success p{color:#5a6a7e;font-size:.9rem}

/* ===== Reading & Writing, Mock Interview, Interview Guide, Bilingual toggle ===== */
.lang-toggle{background:transparent;border:1.5px solid rgba(255,255,255,.3);color:var(--white);border-radius:8px;padding:7px 14px;font-size:.82rem;font-weight:600;cursor:pointer;transition:.2s}
.lang-toggle:hover{background:rgba(255,255,255,.1);border-color:var(--gold)}

.rw-sentence-card{background:var(--light-bg);border-radius:16px;padding:36px 30px;text-align:center;max-width:640px;margin:0 auto}
.rw-sentence{font-size:1.5rem;font-weight:700;color:var(--navy);line-height:1.5;margin-bottom:20px}
.rw-progress{text-align:center;margin-bottom:16px;color:#5a6a7e;font-weight:600;font-size:.9rem}
.rw-hint{color:#5a6a7e;font-size:.9rem;margin-top:14px}
.rw-writing-input{width:100%;max-width:480px;padding:14px 18px;border-radius:10px;border:2px solid #d5dde8;font-size:1.05rem;margin-top:16px;font-family:inherit}
.rw-writing-input:focus{outline:none;border-color:var(--navy)}
.rw-feedback{margin-top:18px;font-size:1.02rem;min-height:24px}
.btn-audio{background:var(--navy);color:var(--white);border:none;border-radius:24px;padding:10px 22px;font-size:.92rem;font-weight:600;cursor:pointer;margin:8px 0;transition:.2s}
.btn-audio:hover{background:#003580}

.mock-timer{font-family:'JetBrains Mono',monospace;font-weight:700;color:var(--red);font-size:1.05rem}
.mock-answer-reveal{background:#f0f9f4;border:1.5px solid #b8e6c9;border-radius:10px;padding:16px 20px;margin:18px 0;text-align:left}
.mock-correct-answer{font-size:1.15rem;font-weight:700;color:#0a7c42;margin-top:6px}

.ig-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;margin-top:30px}
.ig-card{background:var(--white);border:1px solid #e2e8f0;border-radius:14px;padding:26px;box-shadow:var(--card-shadow)}
.ig-card h3{color:var(--navy);font-size:1.1rem;margin-bottom:14px}
.ig-card p,.ig-card ul{color:#3a4a5e;font-size:.95rem;line-height:1.7}
.ig-card ul{padding-left:20px}
.ig-source{text-align:center;color:#8a97a8;font-size:.82rem;margin-top:30px;font-style:italic}

/* ===== Back to top ===== */
#backToTopBtn{position:fixed;bottom:24px;left:24px;width:48px;height:48px;border-radius:50%;background:var(--navy);color:var(--white);border:2px solid var(--gold);font-size:1.3rem;cursor:pointer;box-shadow:0 4px 16px rgba(0,0,0,.3);opacity:0;pointer-events:none;transition:opacity .25s,transform .2s;z-index:999}
#backToTopBtn.visible{opacity:1;pointer-events:auto}
#backToTopBtn:hover{transform:translateY(-3px)}
#backToTopBtn:active{transform:translateY(0)}

/* ===== Mobile responsiveness for newer sections (real fixes, tested at 360-430px) ===== */
@media(max-width:600px){
  .quiz-version-tabs{flex-direction:column;gap:8px}
  .quiz-tab{width:100%;text-align:center;white-space:normal;line-height:1.3}
  .rw-sentence-card{padding:24px 18px}
  .rw-sentence{font-size:1.2rem}
  .rw-writing-input{max-width:100%}
  .ig-grid{grid-template-columns:1fr}
  .quiz-header{flex-wrap:wrap;gap:8px}
  .mock-timer{font-size:.95rem}
  #backToTopBtn{bottom:16px;left:16px;width:44px;height:44px;font-size:1.1rem}
  .lang-toggle{padding:6px 10px;font-size:.75rem}
  .btn-audio{width:100%;text-align:center}
  .quiz-box{padding:20px 16px}
}
@media(max-width:400px){
  .section-title{font-size:1.5rem}
  .rw-sentence{font-size:1.05rem}
}

/* Larger tap targets for touch devices — iOS/Android both benefit from
   this since the original buttons were sized for mouse pointer precision */
@media(hover:none) and (pointer:coarse){
  .quiz-tab,.btn-audio,.quiz-next-btn,.btn-restart{min-height:44px}
  .nav-links a, .mobile-menu a{padding:12px 8px}
}

/* Real bug fix: an unclassed inline 2-column grid (.story-grid, in the
   About section) had zero mobile handling at all — it forced a 2-column
   layout at any viewport width, causing genuine horizontal overflow on
   real phones. min-width:0 on its children stops long text/flex content
   from refusing to shrink, and the grid itself collapses to 1 column. */
.about-grid *{min-width:0}
.story-grid *{min-width:0}
@media(max-width:820px){ .story-grid{grid-template-columns:1fr !important} }

/* ===== Source citations + weak-questions button ===== */
.source-cite{font-size:.72rem;color:#8a97a8;margin-top:8px;font-style:italic}
.fc-weak-btn{background:linear-gradient(90deg,var(--red),#e8453c)!important;color:#fff!important;border:none!important;font-weight:700}

/* ===== Accessibility: visible focus indicator for every interactive element ===== */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible,
select:focus-visible, [tabindex]:focus-visible, [role="button"]:focus-visible {
  outline: 3px solid #0a7cff !important;
  outline-offset: 2px !important;
}
.skip-link{position:absolute;top:-60px;left:8px;background:var(--navy);color:#fff;padding:12px 20px;border-radius:8px;z-index:10000;font-weight:700;text-decoration:none;transition:top .2s}
.skip-link:focus{top:8px}
.flashcard-scene:focus-visible{outline:3px solid #0a7cff;outline-offset:4px;border-radius:24px}
.review-stars span{cursor:pointer;font-size:1.6rem;color:#d5dde8;transition:.15s}
.review-stars span.filled{color:var(--gold)}
.review-form-box{background:var(--light-bg);border-radius:16px;padding:28px 26px;max-width:520px;margin:0 auto 30px}
.review-form-box h3{color:var(--navy);margin-bottom:14px}
.review-textarea{min-height:90px;resize:vertical;font-family:inherit}
.reviews-list{display:grid;gap:16px;max-width:640px;margin:0 auto}
.review-card{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:18px 20px;box-shadow:var(--card-shadow)}
.review-card-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.review-card-stars{color:var(--gold)}
.review-card p{color:#3a4a5c;line-height:1.6;font-size:.95rem}
.legal-body h3{color:var(--navy);font-size:1.05rem;margin:24px 0 8px}
.legal-body h3:first-child{margin-top:0}
.legal-body p{color:#3a4a5c;line-height:1.75;font-size:.95rem}

/* ===== FAQ, trust stats bar ===== */
.faq-list{display:flex;flex-direction:column;gap:12px;margin-top:24px}
.faq-item{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:18px 22px;box-shadow:var(--card-shadow)}
.faq-item summary{cursor:pointer;font-weight:700;color:var(--navy);font-size:1rem;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:'+ ';color:var(--red);font-weight:900}
.faq-item[open] summary::before{content:'− '}
.faq-item p{color:#3a4a5c;line-height:1.7;margin-top:12px;font-size:.95rem}
.trust-stats-bar{display:flex;justify-content:center;gap:40px;margin:0 auto 30px;flex-wrap:wrap}
.trust-stat{text-align:center}
.trust-stat-num{font-size:2rem;font-weight:900;color:var(--navy)}
.trust-stat-label{font-size:.8rem;color:#5a6a7e;font-weight:600;text-transform:uppercase;letter-spacing:.05em;margin-top:4px}
.trust-stat-empty{text-align:center;color:#8a97a8;font-style:italic;font-size:.9rem;margin-bottom:20px}
@media(max-width:600px){
  .faq-item{padding:14px 16px}
  .trust-stats-bar{gap:24px}
  .trust-stat-num{font-size:1.5rem}
}

/* ===== Floating Home button (always reachable, critical on phones) ===== */
#homeFloatBtn{position:fixed;bottom:80px;left:24px;width:48px;height:48px;border-radius:50%;background:var(--red);color:#fff;border:2px solid #fff;font-size:1.3rem;cursor:pointer;box-shadow:0 4px 16px rgba(0,0,0,.3);opacity:0;pointer-events:none;transition:opacity .25s,transform .2s;z-index:999}
#homeFloatBtn.visible{opacity:1;pointer-events:auto}
#homeFloatBtn:hover{transform:translateY(-3px)}
.nav-home-link{font-weight:800!important}
@media(max-width:600px){
  #homeFloatBtn{bottom:76px;left:16px;width:44px;height:44px;font-size:1.1rem}
}

/* ===== Footer social icons ===== */
.footer-social{display:flex;gap:10px;margin-top:16px}
.social-icon{width:34px;height:34px;display:flex;align-items:center;justify-content:center;background:transparent;color:rgba(255,255,255,.65);text-decoration:none;transition:.2s;border:none}
.social-icon:hover{color:#fff;transform:translateY(-1px)}
.social-icon:hover{background:var(--gold);color:var(--navy);transform:translateY(-2px)}

/* Brand-color hover per platform */
/* Hover state kept simple/flat (brighten to white) per Sven's reference style — no colored badge backgrounds */

/* ===== Nav "More" dropdown — real fix for 16 items never fitting in one row ===== */
.nav-links{flex-wrap:nowrap}
.nav-links a, .nav-more-btn{font-size:.88rem;white-space:nowrap}
.nav-more-wrap{position:relative}
.nav-more-btn{background:none;border:none;color:var(--white);font-family:inherit;font-size:.88rem;font-weight:600;cursor:pointer;padding:8px 4px}
.nav-more-btn:hover{color:var(--gold)}
.nav-more-dropdown{display:none;position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%);background:var(--white);border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,.25);padding:8px;min-width:190px;z-index:200}
.nav-more-dropdown.open{display:flex;flex-direction:column}
.nav-more-dropdown a{color:var(--dark-text)!important;padding:10px 14px;border-radius:8px;font-size:.9rem;white-space:nowrap}
.nav-more-dropdown a:hover{background:var(--light-bg)}

/* ===== Footer legal text — real centering fix ===== */
.footer-bottom{text-align:center}
.footer-copy, .footer-disclaimer{text-align:center;max-width:900px;margin-left:auto;margin-right:auto}

/* Active tab highlight — clear indicator of which section you're on */
.nav-links a.nav-active{color:var(--gold)!important;font-weight:800;border-bottom:2px solid var(--gold)}
.nav-more-dropdown a.nav-active{background:var(--light-bg);font-weight:800;color:var(--navy)!important}

/* SVG icons need block display to avoid inline baseline gaps */
.social-icon svg{display:block}

/* ===== Flashcard prev/next arrows — flanking the card directly, much more discoverable than a button row above it ===== */
.fc-card-row{display:flex;align-items:center;justify-content:center;gap:16px;margin-bottom:28px}
.fc-card-row .flashcard-scene{margin-bottom:0}
.fc-arrow-btn{
  flex-shrink:0;width:52px;height:52px;border-radius:50%;
  background:var(--white);border:2px solid var(--navy);color:var(--navy);
  font-size:1.8rem;line-height:1;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 14px rgba(0,31,63,.15);transition:.2s
}
.fc-arrow-btn:hover{background:var(--navy);color:var(--white);transform:scale(1.08)}
.fc-arrow-btn:active{transform:scale(.96)}
@media(max-width:700px){
  .fc-card-row{gap:8px}
  .fc-arrow-btn{width:40px;height:40px;font-size:1.4rem}
}

/* ===== Review replies (owner response, and the admin-only reply controls) ===== */
.review-reply{margin-top:14px;padding:14px 16px;background:var(--light-bg);border-left:3px solid var(--navy);border-radius:8px}
.review-reply strong{color:var(--navy);font-size:.85rem;display:block;margin-bottom:4px}
.review-reply p{color:#3a4a5c;font-size:.92rem;margin:0}
.review-admin-reply{margin-top:12px;padding-top:12px;border-top:1px dashed #d5dde8}
.review-reply-edit-btn{background:none;border:1px solid var(--navy);color:var(--navy);padding:6px 14px;border-radius:8px;font-size:.82rem;font-weight:700;cursor:pointer}
.review-reply-edit-btn:hover{background:var(--navy);color:#fff}

/* When the install banner is showing, push page content up so nothing
   sits hidden underneath it — a fixed banner covers physical screen
   space regardless of z-index, so this needs real padding, not just a
   stacking-order fix. */
@media(max-width:600px){
}

/* ===== Phone fixes: flashcard emoji/text overlap + floating button clearance ===== */
@media(max-width:600px){
  /* Taller card + tighter padding so long questions/answers fit */
  .flashcard-scene{height:460px;max-width:100%}
  .flashcard-face{padding:26px 20px}
  .flashcard-front .q-text{font-size:1.05rem;line-height:1.5}
  .flashcard-back .a-text{font-size:.98rem;line-height:1.55}
  /* Hide decorative emojis/stars that collide with text on small cards */
  .flashcard-front::before,
  .flashcard-front::after,
  .flashcard-back::after{display:none}
  /* Keep floating buttons clear of the bottom edge / chat area */
  #backToTopBtn{bottom:20px;left:14px}
}

/* ===== Mission rows: hard guarantee the emoji sits beside the text, never on it ===== */
.mission-row{display:flex !important;gap:16px;align-items:flex-start}
.mission-row > div:first-child{flex:0 0 auto;font-size:2rem;line-height:1}
.mission-row > div:last-child{flex:1;min-width:0}
@media(max-width:480px){
  .mission-row{gap:12px;padding:20px !important}
  .mission-row > div:first-child{font-size:1.6rem}
}

/* ===== Bottom clearance: keep floating buttons (Home/Up/Chat) from covering
   the last content on any page ===== */
body{padding-bottom:84px}
@media(max-width:768px){
  body{padding-bottom:116px}
}

/* ===== Mobile menu: cap height so long menus scroll instead of running
   off-screen; keeps every item (incl. Sign In) reachable ===== */
.mobile-menu{max-height:calc(100vh - 76px);overflow-y:auto;-webkit-overflow-scrolling:touch}

/* Start Free is a button, not a nav link — never let active-section
   highlighting turn its text gold-on-gold (invisible) */
.nav-links a.btn-start.nav-active{color:var(--navy)!important;border-bottom:none!important;font-weight:700!important}