:root{--navy: #0f1e3d;--navy-mid: #1a3160;--navy-light: #243d78;--gold: #c9a84c;--gold-light: #e8c96a;--gold-pale: #fdf6e3;--white: #ffffff;--bg: #f5f6fa;--surface: #ffffff;--surface-2: #f0f4ff;--border: #dde3f0;--text: #1a1a2e;--text-mid: #4a5068;--text-light: #7a82a0;--green: #16a34a;--red: #dc2626;--radius: 10px;--shadow: 0 2px 12px rgba(15,30,61,.08);--shadow-lg: 0 8px 32px rgba(15,30,61,.14)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh}button{cursor:pointer;border:none;font-family:inherit}a{text-decoration:none;color:inherit}.app-shell{display:flex;flex-direction:column;min-height:100vh}.app-header{background:var(--navy);color:var(--white);padding:0 24px;height:60px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100;box-shadow:0 2px 16px #0000004d}.header-brand{display:flex;align-items:center;gap:10px}.brand-icon{font-size:28px}.brand-title{font-size:18px;font-weight:700;color:var(--gold);line-height:1}.brand-sub{font-size:10px;color:#ffffff80;text-transform:uppercase;letter-spacing:1px}.desktop-nav{display:flex;gap:4px}.nav-link{display:flex;align-items:center;gap:6px;padding:6px 14px;border-radius:6px;font-size:13px;font-weight:500;color:#ffffffb3;transition:all .15s}.nav-link:hover{color:var(--white);background:#ffffff1a}.nav-link.active{color:var(--gold);background:#c9a84c26}.app-main{flex:1;padding:24px;max-width:1100px;margin:0 auto;width:100%}.mobile-nav{display:none;position:fixed;bottom:0;left:0;right:0;background:var(--navy);border-top:1px solid rgba(255,255,255,.1);z-index:100}.mobile-nav-link{flex:1;display:flex;flex-direction:column;align-items:center;padding:8px 4px;color:#fff9;font-size:10px;transition:color .15s}.mobile-nav-link.active{color:var(--gold)}.mobile-nav-icon{font-size:20px;margin-bottom:2px}.mobile-nav-label{font-size:9px}.page-header{margin-bottom:20px}.page-title{font-size:22px;font-weight:700;color:var(--navy)}.page-sub{font-size:13px;color:var(--text-light);margin-top:2px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}.card-sm{padding:14px}.badge{display:inline-block;padding:2px 10px;border-radius:20px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.badge-india{background:#fff3e0;color:#e65100}.badge-global{background:#e3f2fd;color:#0d47a1}.badge-legal{background:#f3e5f5;color:#6a1b9a}.badge-polity{background:#fce4ec;color:#880e4f}.badge-history{background:#fff8e1;color:#f57f17}.badge-geo{background:#e8f5e9;color:#1b5e20}.badge-eco{background:#e0f2f1;color:#004d40}.badge-env{background:#f1f8e9;color:#33691e}.badge-easy{background:#e8f5e9;color:#2e7d32}.badge-medium{background:#fff3e0;color:#e65100}.badge-hard{background:#fce4ec;color:#b71c1c}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border-radius:7px;font-size:13px;font-weight:600;transition:all .15s}.btn-primary{background:var(--navy);color:var(--white)}.btn-primary:hover{background:var(--navy-mid)}.btn-gold{background:var(--gold);color:var(--navy)}.btn-gold:hover{background:var(--gold-light)}.btn-outline{background:transparent;color:var(--navy);border:1.5px solid var(--border)}.btn-outline:hover{border-color:var(--navy)}.btn-sm{padding:5px 12px;font-size:12px}.btn:disabled{opacity:.5;cursor:not-allowed}.spinner{width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--navy);border-radius:50%;animation:spin .8s linear infinite;margin:40px auto}@keyframes spin{to{transform:rotate(360deg)}}.loading-wrap{text-align:center;padding:60px 20px}.loading-wrap p{color:var(--text-light);margin-top:12px;font-size:14px}.tabs{display:flex;gap:4px;margin-bottom:20px;border-bottom:2px solid var(--border);padding-bottom:0}.tab{padding:8px 18px;border-radius:8px 8px 0 0;font-size:13px;font-weight:600;background:transparent;color:var(--text-light);border:none;border-bottom:2px solid transparent;margin-bottom:-2px;transition:all .15s}.tab:hover{color:var(--navy);background:var(--surface-2)}.tab.active{color:var(--navy);border-bottom-color:var(--navy);background:var(--surface-2)}.digest-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.digest-col-header{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--text-light);margin-bottom:12px;padding-bottom:8px;border-bottom:2px solid var(--border)}.story-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:12px;box-shadow:var(--shadow);transition:box-shadow .15s}.story-card:hover{box-shadow:var(--shadow-lg)}.story-title{font-size:14px;font-weight:700;color:var(--navy);margin:8px 0 6px;line-height:1.4}.story-source{font-size:11px;color:var(--text-light);margin-bottom:8px}.story-summary{font-size:13px;color:var(--text-mid);line-height:1.65}.story-actions{display:flex;gap:8px;margin-top:12px}.quote-card{background:var(--navy);color:var(--white);border-radius:var(--radius);padding:20px 24px;margin-bottom:20px;text-align:center}.quote-text{font-size:15px;font-style:italic;line-height:1.6;color:var(--gold-light)}.quote-attr{font-size:12px;color:#ffffff80;margin-top:8px}.practice-passage{background:var(--gold-pale);border:1px solid #e8d5a0;border-radius:var(--radius);padding:20px 24px;font-size:14px;line-height:1.8;color:var(--text);margin-bottom:24px}.practice-passage h4{font-size:16px;color:var(--navy);margin-bottom:12px}.mcq-list{display:flex;flex-direction:column;gap:20px}.mcq-question{font-size:14px;font-weight:600;color:var(--navy);margin-bottom:10px}.mcq-options{display:flex;flex-direction:column;gap:8px}.mcq-option{display:flex;align-items:flex-start;gap:10px;padding:10px 14px;border:1.5px solid var(--border);border-radius:8px;cursor:pointer;transition:all .15s;font-size:13px;background:var(--surface)}.mcq-option:hover,.mcq-option.selected{border-color:var(--navy);background:var(--surface-2)}.mcq-option.correct{border-color:var(--green);background:#f0fdf4}.mcq-option.wrong{border-color:var(--red);background:#fef2f2}.mcq-option-key{width:22px;height:22px;border-radius:50%;background:var(--border);color:var(--text-mid);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;flex-shrink:0}.mcq-option.correct .mcq-option-key{background:var(--green);color:#fff}.mcq-option.wrong .mcq-option-key{background:var(--red);color:#fff}.mcq-explanation{margin-top:10px;padding:10px 14px;background:#f0f9ff;border-left:3px solid #0284c7;border-radius:4px;font-size:12.5px;color:var(--text-mid);line-height:1.6}.score-banner{text-align:center;padding:24px;background:var(--navy);color:#fff;border-radius:var(--radius);margin-bottom:20px}.score-number{font-size:48px;font-weight:800;color:var(--gold)}.score-label{font-size:14px;color:#ffffffb3}.timer-badge{display:inline-flex;align-items:center;gap:6px;background:var(--navy);color:var(--gold);padding:6px 14px;border-radius:20px;font-size:13px;font-weight:700;font-variant-numeric:tabular-nums}.chat-shell{display:flex;flex-direction:column;height:calc(100vh - 180px);min-height:500px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}.chat-messages{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:14px}.chat-msg{display:flex;gap:10px;align-items:flex-start;max-width:85%}.chat-msg.user{flex-direction:row-reverse;align-self:flex-end}.chat-avatar{width:32px;height:32px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:16px}.chat-msg.user .chat-avatar{background:var(--navy);color:var(--gold)}.chat-msg.ai .chat-avatar{background:var(--gold)}.chat-bubble{padding:10px 14px;border-radius:12px;font-size:13.5px;line-height:1.65}.chat-msg.user .chat-bubble{background:var(--navy);color:#fff;border-radius:12px 0 12px 12px}.chat-msg.ai .chat-bubble{background:var(--surface-2);color:var(--text);border-radius:0 12px 12px;border:1px solid var(--border)}.chat-input-bar{display:flex;gap:10px;padding:14px 16px;border-top:1px solid var(--border);background:var(--surface)}.chat-input{flex:1;padding:10px 14px;border:1.5px solid var(--border);border-radius:8px;font-size:14px;font-family:inherit;resize:none;outline:none;max-height:100px}.chat-input:focus{border-color:var(--navy)}.chat-suggestions{display:flex;flex-wrap:wrap;gap:8px;padding:0 16px 12px}.suggestion-chip{padding:5px 12px;border-radius:20px;font-size:12px;background:var(--surface-2);border:1px solid var(--border);color:var(--text-mid);cursor:pointer;transition:all .15s}.suggestion-chip:hover{border-color:var(--navy);color:var(--navy)}.gkbank-controls{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px;align-items:center}.select{padding:8px 14px;border:1.5px solid var(--border);border-radius:8px;font-size:13px;font-family:inherit;background:var(--surface);color:var(--text);outline:none;cursor:pointer}.select:focus{border-color:var(--navy)}.gkq-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);min-height:220px}.gkq-counter{font-size:12px;color:var(--text-light);margin-bottom:8px}.gkq-question{font-size:15px;font-weight:600;color:var(--navy);margin-bottom:16px;line-height:1.5}.gkq-nav{display:flex;gap:10px;align-items:center;justify-content:space-between;margin-top:20px}.gkq-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;text-align:center;box-shadow:var(--shadow)}.stat-num{font-size:32px;font-weight:800;color:var(--navy)}.stat-label{font-size:12px;color:var(--text-light);margin-top:4px}.streak-fire{color:#f97316}.progress-bar-wrap{background:var(--bg);border-radius:20px;height:8px;margin-top:8px}.progress-bar-fill{height:8px;border-radius:20px;background:var(--navy);transition:width .5s}.category-row{display:flex;align-items:center;gap:12px;margin-bottom:10px}.category-row-label{font-size:13px;width:100px;color:var(--text-mid)}.category-row-bar{flex:1}.category-row-pct{font-size:12px;color:var(--text-light);width:36px;text-align:right}@media (max-width: 768px){.desktop-nav{display:none}.mobile-nav{display:flex}.app-main{padding:16px 12px 72px}.digest-grid{grid-template-columns:1fr}.stats-grid{grid-template-columns:repeat(2,1fr)}.chat-shell{height:calc(100vh - 200px)}}@media (max-width: 480px){.stats-grid{grid-template-columns:1fr 1fr}.gkq-grid{grid-template-columns:1fr}}