.auth-page{min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px 16px;position:relative}.auth-card{background:var(--card-bg);border-radius:20px;padding:36px 28px;width:100%;max-width:400px;box-shadow:0 12px 40px #00389326;position:relative;z-index:1;border:1px solid rgba(0,56,147,.06)}.auth-logo{text-align:center;margin-bottom:28px}.auth-logo h1{font-size:1.8rem;font-weight:900;background:linear-gradient(135deg,#003893,#001a4d);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.02em}.auth-logo p{color:var(--text-light);margin-top:6px;font-size:.85rem}.auth-form{display:flex;flex-direction:column;gap:12px}.auth-form .input{padding:14px 16px}.auth-form .btn{padding:14px;font-size:.95rem;margin-top:4px}.auth-toggle{text-align:center;margin-top:20px;font-size:.85rem;color:var(--text-light)}.auth-toggle button{background:none;color:var(--accent);font-weight:700;text-decoration:underline;font-size:.85rem}.auth-close{position:absolute;top:14px;right:14px;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--accent-light);color:var(--accent);font-size:14px;font-weight:700;cursor:pointer;border:none;transition:all .15s}.auth-close:hover{background:var(--accent);color:#fff}.auth-error{background:#fde8e8;color:var(--danger);padding:12px 16px;border-radius:10px;font-size:.82rem;text-align:center;margin-bottom:8px;font-weight:500}.auth-resend-btn{display:block;margin:8px auto 0;background:none;border:none;color:var(--accent);font-size:.82rem;font-weight:700;text-decoration:underline;cursor:pointer;font-family:inherit}.auth-resend-btn:hover{color:#001a4d}.auth-success{background:var(--success-light);color:var(--success);padding:12px 16px;border-radius:10px;font-size:.82rem;text-align:center;margin-bottom:8px;font-weight:500}.auth-divider{display:flex;align-items:center;gap:12px;margin:20px 0 16px}.auth-divider:before,.auth-divider:after{content:"";flex:1;height:1px;background:var(--border)}.auth-divider span{font-size:.78rem;color:var(--text-muted);white-space:nowrap;font-weight:500}.auth-sso{display:flex;flex-direction:column;gap:10px}.auth-sso-btn{display:flex;align-items:center;justify-content:center;gap:10px;padding:12px 16px;border:2px solid var(--border);border-radius:12px;background:var(--card-bg);color:var(--text);font-size:.9rem;font-weight:600;cursor:pointer;transition:all .15s ease;font-family:inherit}.auth-sso-btn:hover{border-color:var(--accent);background:var(--accent-light);box-shadow:var(--shadow-sm)}.auth-sso-btn:active{transform:scale(.98)}.auth-sso-btn svg{flex-shrink:0}.auth-guest{text-align:center;margin-top:16px;padding-top:16px;border-top:1px solid var(--border)}.auth-guest-btn{background:none;border:2px solid var(--border);border-radius:12px;padding:10px 24px;font-size:.88rem;font-weight:600;color:var(--text-light);cursor:pointer;transition:all .15s;font-family:inherit;width:100%}.auth-guest-btn:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-light)}.auth-guest-note{font-size:.72rem;color:var(--text-muted);margin-top:6px}.auth-overlay .auth-page{min-height:auto;padding:0}.auth-overlay .auth-card{animation:scaleIn .2s ease;box-shadow:0 24px 60px #0000004d}.culture-tip{background:linear-gradient(135deg,#fffdf5,#fff8e1);border:1.5px solid rgba(218,165,32,.4);border-radius:var(--radius, 16px);padding:18px 20px;position:relative;animation:slideUp .3s ease;box-shadow:0 2px 8px #daa5201f}.culture-tip-badge{position:absolute;top:-8px;right:14px;font-size:1.2rem;background:#fff;border-radius:50%;width:28px;height:28px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 6px #0000001a}.culture-tip-content{display:flex;flex-direction:column;gap:8px}.culture-tip-header{display:flex;align-items:center;gap:8px}.culture-tip-emoji{font-size:1.3rem;flex-shrink:0}.culture-tip-title{margin:0;font-size:.9rem;font-weight:800;color:#5a4500}.culture-tip-text{margin:0;font-size:.82rem;color:#6b5a2e;line-height:1.5}.culture-preview-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px;margin-top:20px}@media(max-width:600px){.culture-preview-grid{grid-template-columns:1fr}}.landing{min-height:100dvh;position:relative}.landing-hero{position:relative;overflow:hidden;min-height:480px;display:flex;align-items:center;justify-content:center}.landing-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center 30%;filter:brightness(.4);z-index:0}.landing-hero-content{position:relative;z-index:1;text-align:center;padding:80px 24px 56px;max-width:var(--max-width)}.landing-flag{margin-bottom:20px}.landing-flag svg{border-radius:12px;box-shadow:0 4px 20px #00389366;border:2px solid rgba(255,255,255,.6)}.landing-hero h1{font-size:2.4rem;font-weight:900;color:#fff;line-height:1.15;margin-bottom:16px;letter-spacing:-.03em;text-shadow:0 2px 12px rgba(0,0,0,.5)}.landing-hero h1 span{color:var(--vz-yellow)}.landing-hero-content>p{font-size:1rem;color:#ffffffe6;line-height:1.6;margin-bottom:36px;max-width:380px;margin-left:auto;margin-right:auto;text-shadow:0 1px 4px rgba(0,0,0,.4)}.landing-cta{display:flex;flex-direction:column;gap:10px;align-items:center}.landing-cta-btn{padding:16px 40px!important;font-size:1.1rem!important;border-radius:14px!important;background:var(--primary)!important;color:#fff!important;border:none!important;font-weight:800!important;cursor:pointer;box-shadow:0 4px 20px #ef334066;transition:all .25s}.landing-cta-btn:hover{transform:translateY(-2px);box-shadow:0 6px 28px #ef334080}.landing-cta-note{font-size:.82rem;color:#fff9}.landing-photos{padding:24px 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1fr;gap:14px}.feature-card{background:var(--card-bg);border-radius:var(--radius);padding:22px;text-align:center;box-shadow:var(--shadow);border:1px solid rgba(0,56,147,.06);transition:transform .2s}.feature-card:hover{transform:translateY(-2px)}.feature-card-emoji{font-size:2rem;margin-bottom:8px}.feature-card h3{font-size:.9rem;font-weight:700;margin-bottom:4px}.feature-card p{font-size:.75rem;color:var(--text-light);line-height:1.4}.landing-culture-banner{position:relative;height:200px;overflow:hidden;margin:0}.landing-culture-banner img{width:100%;height:100%;object-fit:cover;display:block}.landing-culture-banner-overlay{position:absolute;inset:0;background:linear-gradient(180deg,#003893b3,#000d26d9);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;text-align:center}.landing-culture-banner-overlay h3{color:#fff;font-size:1.25rem;font-weight:800;margin-bottom:8px;text-shadow:0 1px 4px rgba(0,0,0,.3)}.landing-culture-banner-overlay p{color:#fffc;font-size:.88rem}.landing-culture{padding:40px 24px 56px;max-width:var(--max-width);margin:0 auto}.landing-culture h2{text-align:center;font-size:1.2rem;margin-bottom:8px;color:var(--text);font-weight:800}.landing-culture-subtitle{text-align:center;font-size:.88rem;color:var(--text-light);margin-bottom:20px}.landing-footer{text-align:center;padding:32px 24px;border-top:1px solid var(--border);font-size:.78rem;color:var(--text-muted)}.landing-footer button{font-size:.78rem}.landing-footer p+p{margin-top:8px}@media(max-width:400px){.landing-hero{min-height:420px}.landing-hero h1{font-size:2rem}.landing-photo-card{width:120px}.landing-photo-card img{height:80px}.feature-card{padding:16px}}.modal-overlay{position:fixed;inset:0;background:var(--bg);z-index:100;overflow-y:auto;-webkit-overflow-scrolling:touch;animation:fadeIn .15s ease}.modal-header{background:linear-gradient(135deg,#003893,#001a4d,#000d26);color:#fff;padding:20px 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scale(1.05)}.modal-body{max-width:var(--max-width);margin:0 auto;padding:20px 16px;width:100%;animation:slideUp .2s ease}.modal-footer{position:sticky;bottom:0;padding:16px;background:var(--bg);border-top:1px solid var(--border);max-width:var(--max-width);margin:0 auto;width:100%}.rec-player{margin-top:12px;animation:slideUp .2s ease}.rec-player-label{font-size:.78rem;font-weight:600;color:var(--text-light);margin-bottom:6px;text-align:center}.rec-player-bar{display:flex;align-items:center;gap:8px;background:#1c1c1e;border-radius:12px;padding:10px 14px;color:#fff;box-shadow:0 4px 16px #00000040}.rec-player-controls{display:flex;align-items:center;gap:4px;flex-shrink:0}.rec-player-skip{width:28px;height:28px;border-radius:50%;background:transparent;border:none;color:#ffffffb3;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all 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0;width:100%;height:16px;-webkit-appearance:none;appearance:none;background:transparent;cursor:pointer;margin:0}.rec-player-seek::-webkit-slider-thumb{-webkit-appearance:none;width:12px;height:12px;border-radius:50%;background:#fff;box-shadow:0 1px 4px #0000004d;cursor:pointer;opacity:0;transition:opacity .15s}.rec-player-track:hover .rec-player-seek::-webkit-slider-thumb{opacity:1}.rec-player-seek::-moz-range-thumb{width:12px;height:12px;border-radius:50%;background:#fff;box-shadow:0 1px 4px #0000004d;cursor:pointer;border:none}.rec-player-volume{background:transparent;border:none;color:#fff;font-size:14px;cursor:pointer;padding:2px;flex-shrink:0;opacity:.6;transition:opacity .15s}.rec-player-volume:hover{opacity:1}.rec-player-clear{background:#ffffff1a;border:none;color:#fff9;font-size:12px;width:24px;height:24px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s;flex-shrink:0}.rec-player-clear:hover{background:#ef334080;color:#fff}@media(max-width:400px){.rec-player-bar{padding:8px 10px;gap:6px}.rec-player-skip{width:24px;height:24px}.rec-player-play{width:32px;height:32px}.rec-player-time{font-size:.65rem;min-width:25px}.rec-player-volume{display:none}}.modal-body:has(.vocab-layout){max-width:960px}.vocab-layout{display:flex;gap:0;min-height:calc(100dvh - 80px)}.vocab-mobile-toggle{display:none;width:100%;padding:12px 16px;background:var(--card-bg);border:2px solid var(--border);border-radius:12px;font-size:.9rem;font-weight:600;color:var(--text);cursor:pointer;align-items:center;gap:8px;margin-bottom:12px;box-shadow:var(--shadow-sm)}.vocab-mobile-toggle-arrow{margin-left:auto;font-size:.7rem;color:var(--text-muted)}.vocab-sidebar{width:220px;flex-shrink:0;border-right:1px solid var(--border);padding:16px 12px;background:var(--card-bg);border-radius:16px 0 0 16px;position:sticky;top:80px;height:fit-content;max-height:calc(100dvh - 100px);overflow-y:auto;box-shadow:var(--shadow-sm)}.vocab-sidebar-header{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);padding:0 10px 10px;border-bottom:1px solid var(--border);margin-bottom:8px}.vocab-cat-item{display:flex;align-items:center;gap:10px;width:100%;padding:10px 12px;border-radius:10px;font-size:.85rem;font-weight:500;color:var(--text);background:transparent;border:none;cursor:pointer;transition:all .15s;text-align:left}.vocab-cat-item:hover{background:var(--accent-light);color:var(--accent)}.vocab-cat-active{background:linear-gradient(135deg,var(--accent),#001a4d);color:#fff;font-weight:700;box-shadow:0 2px 8px #00389340}.vocab-cat-active:hover{color:#fff;background:linear-gradient(135deg,var(--accent),#001a4d)}.vocab-cat-emoji{font-size:1.1rem;width:24px;text-align:center;flex-shrink:0}.vocab-cat-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.vocab-cat-count{font-size:.7rem;font-weight:700;background:#0000000f;padding:2px 7px;border-radius:10px;color:var(--text-light);flex-shrink:0}.vocab-cat-active .vocab-cat-count{background:#fff3;color:#ffffffe6}.vocab-main{flex:1;min-width:0;padding:16px 16px 40px 20px}.vocab-streak{background:linear-gradient(135deg,#e8f5e9,#c8e6c9);color:#2e7d32;padding:10px 16px;border-radius:12px;font-size:.85rem;margin-bottom:16px;display:flex;align-items:center;gap:8px;font-weight:500;animation:slideUp .3s ease}.vocab-search{position:relative;margin-bottom:14px}.vocab-search-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text-muted);display:flex;align-items:center;pointer-events:none}.vocab-search-input{width:100%;padding:12px 40px 12px 44px;border:2px solid var(--border);border-radius:12px;background:var(--card-bg);color:var(--text);font-size:.9rem;font-family:inherit;transition:all .2s;box-shadow:var(--shadow-sm)}.vocab-search-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #0038931a}.vocab-search-input::placeholder{color:var(--text-muted)}.vocab-search-clear{position:absolute;right:12px;top:50%;transform:translateY(-50%);width:24px;height:24px;border-radius:50%;background:var(--border);color:var(--text-light);font-size:12px;display:flex;align-items:center;justify-content:center;cursor:pointer;border:none;transition:all .15s}.vocab-search-clear:hover{background:var(--text-muted);color:#fff}.vocab-count{font-size:.78rem;color:var(--text-muted);margin-bottom:14px;font-weight:500}.vocab-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.vocab-card{background:var(--card-bg);border-radius:14px;padding:14px 14px 14px 16px;text-align:left;box-shadow:var(--shadow-sm);cursor:pointer;transition:all .2s;position:relative;overflow:hidden;border:2px solid transparent;display:flex;align-items:center;gap:8px}.vocab-card:hover{box-shadow:var(--shadow);transform:translateY(-2px);border-color:var(--accent)}.vocab-card:active{transform:scale(.98)}.vocab-card.mastered{border-left:4px solid var(--success)}.vocab-card.learning{border-left:4px solid var(--warning)}.vocab-card-content{flex:1;min-width:0}.vocab-card-es{font-size:.92rem;font-weight:700;color:var(--accent);line-height:1.3;overflow:hidden;text-overflow:ellipsis}.vocab-card-en{font-size:.75rem;color:var(--text-light);line-height:1.3;margin-top:2px}.vocab-card-speak{flex-shrink:0;width:34px;height:34px;border-radius:50%;background:var(--accent-light);border:none;cursor:pointer;font-size:14px;display:flex;align-items:center;justify-content:center;transition:all .15s;opacity:.7}.vocab-card:hover .vocab-card-speak{opacity:1}.vocab-card-speak:hover{background:var(--accent);transform:scale(1.1)}.vocab-card-speak:active{transform:scale(.9)}.vocab-card-badge{position:absolute;top:6px;right:6px;width:18px;height:18px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:9px;font-weight:800}.badge-mastered{background:var(--success-light);color:var(--success)}.badge-learning{background:var(--warning-light);color:#8a6d00}.vocab-card-img{width:100%;height:44px;object-fit:cover;border-radius:0 0 10px 10px;margin-top:auto;opacity:.85}.card-detail-image{width:160px;height:110px;object-fit:cover;border-radius:12px;margin:12px auto;display:block;box-shadow:0 2px 10px #0000001f}.vocab-empty{text-align:center;padding:60px 20px;color:var(--text-light)}.vocab-empty-icon{font-size:3rem;margin-bottom:12px;opacity:.6}.vocab-empty p{font-size:1rem;font-weight:600;margin-bottom:4px}.vocab-empty-hint{font-size:.85rem!important;font-weight:400!important;color:var(--text-muted)!important}.card-detail-overlay{position:fixed;inset:0;background:#0000008c;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;z-index:200;padding:20px;animation:fadeIn .15s ease}.card-detail{background:var(--card-bg);border-radius:22px;padding:28px 24px;width:100%;max-width:420px;max-height:90vh;overflow-y:auto;box-shadow:0 24px 60px #0000004d;animation:scaleIn .2s ease;position:relative;text-align:center}.card-detail-close{position:absolute;top:14px;right:14px;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--accent-light);color:var(--accent);font-size:14px;font-weight:700;cursor:pointer;border:none;transition:all 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