:root{--app-primary:#2563eb;--app-primary-hover:#1d4ed8;--app-primary-light:#eff6ff;--app-primary-border:#bfdbfe;--app-green:#059669;--app-green-light:#ecfdf5;--app-green-border:#a7f3d0;--app-green-dark:#065f46;--app-purple:#7c3aed;--app-purple-light:#f5f3ff;--app-rose:#e11d48;--app-rose-light:#fff1f2;--app-slate:#475569;--app-slate-light:#f1f5f9;--text-main:#0f172a;--text-muted:#64748b;--text-light:#94a3b8;--bg-app:#f8fafc;--card-bg:#fff;--card-border:#e2e8f0;--font-family:"Plus Jakarta Sans", system-ui, -apple-system, sans-serif;--radius-sm:8px;--radius-md:14px;--radius-lg:20px;--radius-full:9999px;--shadow-card:0 2px 8px -2px #0f172a0d, 0 1px 3px 0 #0f172a0a;--shadow-dock:0 -4px 20px #0000000d}*,:before,:after{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}html,body{width:100%;height:100%;font-family:var(--font-family);color:var(--text-main);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#0b1329}.web-app-viewport{background:radial-gradient(circle at 50% 10%,#1e293b 0%,#0f172a 100%);justify-content:center;align-items:center;width:100vw;height:100dvh;display:flex;position:fixed;top:0;left:0;overflow:hidden}@media (width>=641px){.web-app-viewport{padding:24px 0}}.mobile-app-shell{background-color:var(--bg-app);flex-direction:column;width:100%;max-width:440px;height:100%;max-height:100dvh;display:flex;position:relative;overflow:hidden;box-shadow:0 25px 50px -12px #00000080,0 0 0 1px #ffffff1a}@media (width>=641px){.mobile-app-shell{border:8px solid #1e293b;border-radius:40px;height:92vh;max-height:880px}}.app-header-container{background:linear-gradient(#eff6fff2 0%,#f8fafcfa 100%);border-bottom:1px solid #e2e8f0b3;padding:16px 20px;position:relative;overflow:hidden}.header-bg-overlay{opacity:.14;filter:blur(.5px);pointer-events:none;background-image:url(/assets/campus-building.jpg);background-position:50% 30%;background-size:cover;position:absolute;inset:0}.app-header-content{z-index:2;justify-content:space-between;align-items:center;display:flex;position:relative}.brand-profile{cursor:pointer;align-items:center;gap:12px;display:flex}.brand-avatar-circle{background:linear-gradient(135deg,#1e40af 0%,#2563eb 100%);border:2px solid #fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:48px;height:48px;display:flex;overflow:hidden;box-shadow:0 4px 10px #2563eb40}.brand-avatar-circle img{object-fit:cover;width:100%;height:100%}.brand-titles{flex-direction:column;display:flex}.app-main-title{color:var(--text-main);letter-spacing:-.02em;font-size:1.15rem;font-weight:800;line-height:1.2}.app-sub-title{color:var(--text-muted);font-size:.76rem;font-weight:500}.header-actions{align-items:center;gap:8px;display:flex}.btn-icon-header{color:#334155;cursor:pointer;background:#fff;border:1px solid #e2e8f0;border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;transition:all .15s;display:flex;position:relative;box-shadow:0 1px 3px #0000000d}.btn-icon-header:hover{color:#0f172a;background:#f1f5f9}.notification-badge-dot{background-color:#ef4444;border:1.5px solid #fff;border-radius:50%;width:7px;height:7px;position:absolute;top:7px;right:7px}.btn-pwa-install{color:#fff;border-radius:var(--radius-full);cursor:pointer;background:linear-gradient(135deg,#2563eb 0%,#1d4ed8 100%);border:none;align-items:center;gap:4px;padding:6px 10px;font-size:.72rem;font-weight:700;animation:2s ease-in-out infinite pulse-subtle;display:flex;box-shadow:0 2px 6px #2563eb4d}@keyframes pulse-subtle{0%,to{transform:scale(1)}50%{transform:scale(1.03)}}.search-expand-bar{z-index:2;margin-top:12px;position:relative}.search-input-field{border-radius:var(--radius-full);background:#fff;border:1px solid #cbd5e1;outline:none;width:100%;padding:10px 14px 10px 38px;font-family:inherit;font-size:.85rem;box-shadow:0 2px 4px #00000005}.search-input-field:focus{border-color:var(--app-primary);box-shadow:0 0 0 3px #2563eb26}.search-field-icon{color:var(--text-muted);position:absolute;top:50%;left:12px;transform:translateY(-50%)}.search-field-clear{color:var(--text-muted);cursor:pointer;background:0 0;border:none;font-size:.8rem;position:absolute;top:50%;right:12px;transform:translateY(-50%)}.app-content-scroll{flex-direction:column;flex:1;gap:16px;padding:16px 18px 100px;display:flex;overflow-y:auto}.profession-section{flex-direction:column;gap:10px;display:flex}.section-label{color:var(--text-main);letter-spacing:-.01em;font-size:.95rem;font-weight:800}.profession-pills-row{scrollbar-width:none;gap:8px;padding-bottom:4px;display:flex;overflow-x:auto}.profession-pills-row::-webkit-scrollbar{display:none}.prof-pill-btn{border-radius:var(--radius-full);border:1px solid var(--card-border);color:#475569;cursor:pointer;background:#fff;flex-shrink:0;align-items:center;gap:6px;padding:8px 16px;font-size:.82rem;font-weight:600;transition:all .15s;display:flex;box-shadow:0 1px 2px #00000005}.prof-pill-btn:hover{background:#f8fafc;border-color:#cbd5e1}.prof-pill-btn.active{background:var(--app-primary);border-color:var(--app-primary);color:#fff;font-weight:700;box-shadow:0 4px 10px #2563eb40}.prof-pill-check{font-size:.75rem}.category-banner-card{border-radius:var(--radius-lg);box-shadow:var(--shadow-card);background:#fff;border:1px solid #e2e8f0;align-items:center;gap:14px;padding:14px 16px;transition:transform .15s;display:flex}.cat-banner-icon-box{width:50px;height:50px;color:var(--app-primary);background:#eff6ff;border-radius:14px;flex-shrink:0;justify-content:center;align-items:center;font-size:1.5rem;display:flex}.cat-banner-text{flex:1}.cat-banner-title{color:var(--text-main);letter-spacing:-.01em;font-size:1.08rem;font-weight:800}.cat-banner-desc{color:var(--text-muted);margin-top:2px;font-size:.78rem;line-height:1.35}.cat-banner-arrow{color:#94a3b8;flex-shrink:0}.subject-chips-row{scrollbar-width:none;gap:6px;padding-bottom:2px;display:flex;overflow-x:auto}.subject-chips-row::-webkit-scrollbar{display:none}.subject-chip{border-radius:var(--radius-full);color:#64748b;cursor:pointer;white-space:nowrap;background:#fff;border:1px solid #e2e8f0;flex-shrink:0;padding:5px 12px;font-size:.74rem;font-weight:600}.subject-chip.active{color:#fff;background:#1e293b;border-color:#1e293b}.materials-list-container{flex-direction:column;gap:12px;display:flex}.resource-card{border-radius:var(--radius-lg);box-shadow:var(--shadow-card);background:#fff;border:1px solid #e2e8f0;flex-direction:column;gap:12px;padding:14px 16px;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex;position:relative}.resource-card:hover{border-color:#cbd5e1;box-shadow:0 4px 14px #0000000f}.card-top-row{align-items:center;gap:12px;display:flex}.card-color-icon{border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;display:flex}.palette-blue{color:#2563eb;background:#eff6ff}.palette-purple{color:#7c3aed;background:#f5f3ff}.palette-green{color:#059669;background:#ecfdf5}.palette-rose{color:#e11d48;background:#fff1f2}.palette-slate{color:#475569;background:#f1f5f9}.palette-amber{color:#d97706;background:#fef3c7}.card-info-block{flex:1;min-width:0}.card-title-row{justify-content:space-between;align-items:center;gap:6px;display:flex}.card-main-title{color:var(--text-main);white-space:nowrap;text-overflow:ellipsis;letter-spacing:-.01em;font-size:1.02rem;font-weight:800;overflow:hidden}.badge-latest{color:#15803d;border-radius:var(--radius-full);letter-spacing:.02em;text-transform:uppercase;background:#dcfce7;flex-shrink:0;padding:2px 7px;font-size:.68rem;font-weight:800}.card-sub-line{color:var(--text-muted);white-space:nowrap;text-overflow:ellipsis;margin-top:2px;font-size:.77rem;overflow:hidden}.card-chevron{color:#94a3b8;flex-shrink:0}.card-actions-row{align-items:center;gap:10px;padding-left:56px;display:flex}@media (width<=360px){.card-actions-row{padding-left:0}}.btn-card-action{border-radius:var(--radius-full);cursor:pointer;border:none;flex:1;justify-content:center;align-items:center;gap:5px;padding:8px 12px;font-size:.78rem;font-weight:700;text-decoration:none;transition:all .15s;display:flex}.btn-card-view{color:#2563eb;background:#eff6ff}.btn-card-view:hover{background:#dbeafe}.btn-card-download{color:#059669;background:#ecfdf5}.btn-card-download:hover{background:#d1fae5}.empty-resources-box{border-radius:var(--radius-lg);text-align:center;background:#fff;border:1px dashed #cbd5e1;flex-direction:column;align-items:center;gap:10px;padding:36px 20px;display:flex}.empty-icon{font-size:2.4rem}.empty-title{color:var(--text-main);font-size:1rem;font-weight:700}.empty-sub{color:var(--text-muted);max-width:260px;font-size:.8rem;line-height:1.4}.bottom-nav-dock{-webkit-backdrop-filter:blur(12px);box-shadow:var(--shadow-dock);z-index:20;background:#fffffff2;border-top:1px solid #e2e8f0;justify-content:space-around;align-items:center;padding:8px 8px 14px;display:flex;position:absolute;bottom:0;left:0;right:0}.dock-tab-btn{color:#64748b;cursor:pointer;background:0 0;border:none;border-radius:12px;flex-direction:column;align-items:center;gap:3px;min-width:58px;padding:6px 8px;transition:all .15s;display:flex}.dock-tab-btn.active{color:var(--app-primary);background:#eff6ff}.dock-tab-icon{justify-content:center;align-items:center;display:flex}.dock-tab-label{white-space:nowrap;font-size:.65rem;font-weight:700}.ios-home-indicator{border-radius:var(--radius-full);background-color:#cbd5e1;width:120px;height:4px;position:absolute;bottom:3px;left:50%;transform:translate(-50%)}.profile-view-container{flex-direction:column;gap:16px;display:flex}.profile-card-hero{border-radius:var(--radius-lg);box-shadow:var(--shadow-card);text-align:center;background:#fff;border:1px solid #e2e8f0;flex-direction:column;align-items:center;padding:24px 20px;display:flex;position:relative;overflow:hidden}.profile-card-hero:before{content:"";background:linear-gradient(135deg,#1e40af 0%,#3b82f6 100%);height:72px;position:absolute;top:0;left:0;right:0}.profile-avatar-wrapper{margin-top:18px;margin-bottom:12px;position:relative}.profile-avatar-large{object-fit:cover;background:#eff6ff;border:4px solid #fff;border-radius:50%;width:88px;height:88px;box-shadow:0 4px 14px #00000026}.btn-avatar-camera{background:var(--app-primary);color:#fff;cursor:pointer;border:2px solid #fff;border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;display:flex;position:absolute;bottom:2px;right:2px;box-shadow:0 2px 6px #0003}.profile-student-name{color:var(--text-main);margin-bottom:4px;font-size:1.25rem;font-weight:800}.profile-student-phone{color:var(--text-muted);margin-bottom:10px;font-size:.82rem}.profile-prof-badge{color:var(--app-primary);border-radius:var(--radius-full);border:1px solid var(--app-primary-border);background:#eff6ff;align-items:center;gap:6px;padding:5px 14px;font-size:.8rem;font-weight:700;display:inline-flex}.profile-settings-card{border-radius:var(--radius-lg);box-shadow:var(--shadow-card);background:#fff;border:1px solid #e2e8f0;flex-direction:column;gap:14px;padding:16px;display:flex}.profile-settings-title{color:var(--text-main);font-size:.92rem;font-weight:800}.prof-switch-grid{grid-template-columns:repeat(5,1fr);gap:6px;display:grid}.btn-prof-switch{color:#475569;cursor:pointer;text-align:center;background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;padding:8px 4px;font-size:.76rem;font-weight:700;transition:all .15s}.btn-prof-switch.active{background:var(--app-primary);color:#fff;border-color:var(--app-primary);box-shadow:0 2px 6px #2563eb40}.btn-logout{color:#e11d48;border-radius:var(--radius-full);cursor:pointer;background:#fff1f2;border:1px solid #fecdd3;justify-content:center;align-items:center;gap:8px;margin-top:8px;padding:12px;font-size:.88rem;font-weight:700;transition:all .15s;display:flex}.btn-logout:hover{background:#ffe4e6}.install-popup-overlay{-webkit-backdrop-filter:blur(6px);z-index:1000;background:#0f172abf;justify-content:center;align-items:center;padding:20px;animation:.2s fade-in;display:flex;position:fixed;inset:0}.install-popup-card{text-align:center;background:#fff;border-radius:28px;flex-direction:column;align-items:center;gap:16px;width:100%;max-width:380px;padding:24px 20px;animation:.25s cubic-bezier(.16,1,.3,1) scale-up;display:flex;position:relative;box-shadow:0 20px 40px -10px #0000004d}@keyframes scale-up{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}@keyframes fade-in{0%{opacity:0}to{opacity:1}}.install-popup-icon-circle{background:linear-gradient(135deg,#1e40af 0%,#3b82f6 100%);border:3px solid #fff;border-radius:22px;justify-content:center;align-items:center;width:76px;height:76px;display:flex;overflow:hidden;box-shadow:0 8px 20px #2563eb59}.install-popup-icon-circle img{object-fit:contain;width:100%;height:100%}.install-popup-title{color:var(--text-main);font-size:1.25rem;font-weight:800;line-height:1.2}.install-popup-sub{color:var(--text-muted);font-size:.8rem;line-height:1.4}.install-benefits-list{text-align:left;background:#f8fafc;border:1px solid #e2e8f0;border-radius:16px;flex-direction:column;gap:8px;width:100%;padding:12px 14px;display:flex}.install-benefit-item{color:#334155;align-items:center;gap:8px;font-size:.78rem;font-weight:600;display:flex}.install-benefit-check{color:var(--app-green);flex-shrink:0}.install-popup-actions{flex-direction:column;gap:8px;width:100%;display:flex}.btn-popup-install-now{color:#fff;border-radius:var(--radius-full);cursor:pointer;background:linear-gradient(135deg,#2563eb 0%,#1d4ed8 100%);border:none;justify-content:center;align-items:center;gap:6px;width:100%;padding:13px;font-size:.92rem;font-weight:800;display:flex;box-shadow:0 4px 14px #2563eb59}.btn-popup-later{color:#94a3b8;cursor:pointer;background:0 0;border:none;padding:6px;font-size:.78rem;font-weight:600}.auth-onboarding-overlay{-webkit-backdrop-filter:blur(8px);z-index:950;background:#0f172acc;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.auth-onboarding-card{background:#fff;border-radius:28px;flex-direction:column;gap:16px;width:100%;max-width:400px;max-height:92vh;padding:24px 20px;display:flex;overflow-y:auto;box-shadow:0 25px 50px -12px #00000059}.auth-tabs-toggle{border-radius:var(--radius-full);background:#f1f5f9;padding:4px;display:flex}.auth-tab-btn{border-radius:var(--radius-full);color:#64748b;cursor:pointer;background:0 0;border:none;flex:1;padding:8px;font-size:.84rem;font-weight:700;transition:all .15s}.auth-tab-btn.active{color:var(--app-primary);background:#fff;box-shadow:0 2px 6px #00000014}.auth-input-group{flex-direction:column;gap:6px;display:flex}.auth-input-group label{color:#475569;font-size:.76rem;font-weight:700}.auth-input-wrapper{align-items:center;display:flex;position:relative}.auth-input-icon{color:#94a3b8;position:absolute;left:12px}.auth-input{border:1px solid #cbd5e1;border-radius:12px;outline:none;width:100%;padding:10px 14px 10px 38px;font-family:inherit;font-size:.86rem}.auth-input:focus{border-color:var(--app-primary);box-shadow:0 0 0 3px #2563eb26}.auth-prof-pills{grid-template-columns:repeat(5,1fr);gap:6px;display:grid}.auth-prof-pill{color:#475569;cursor:pointer;text-align:center;background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;padding:8px 2px;font-size:.72rem;font-weight:700}.auth-prof-pill.active{background:var(--app-primary);color:#fff;border-color:var(--app-primary)}.avatar-selection-box{background:#f8fafc;border:1px dashed #cbd5e1;border-radius:14px;align-items:center;gap:12px;padding:10px 14px;display:flex}.avatar-preview-circle{object-fit:cover;background:#eff6ff;border:2px solid #fff;border-radius:50%;width:50px;height:50px;box-shadow:0 2px 6px #0000001a}.btn-upload-photo{color:#334155;border-radius:var(--radius-full);cursor:pointer;background:#fff;border:1px solid #cbd5e1;padding:6px 12px;font-size:.75rem;font-weight:700}.btn-auth-submit{background:var(--app-primary);color:#fff;border-radius:var(--radius-full);cursor:pointer;border:none;width:100%;margin-top:6px;padding:12px;font-size:.92rem;font-weight:800;box-shadow:0 4px 12px #2563eb40}.btn-auth-submit:disabled{opacity:.65;cursor:not-allowed}.auth-error-msg{color:#e11d48;text-align:center;font-size:.78rem;font-weight:600}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:999;background:#0f172aa6;justify-content:center;align-items:flex-end;display:flex;position:fixed;inset:0}@media (width>=641px){.modal-overlay{align-items:center}}.modal-bottom-sheet{background:#fff;border-radius:24px 24px 0 0;flex-direction:column;gap:16px;width:100%;max-width:440px;max-height:85vh;padding:20px;animation:.25s ease-out slide-up;display:flex;overflow-y:auto;box-shadow:0 -10px 25px #00000026}@media (width>=641px){.modal-bottom-sheet{border-radius:24px}}@keyframes slide-up{0%{transform:translateY(100%)}to{transform:translateY(0)}}.sheet-handle{border-radius:var(--radius-full);background:#cbd5e1;width:40px;height:4px;margin:0 auto -6px}.sheet-header{justify-content:space-between;align-items:flex-start;gap:10px;display:flex}.sheet-title{color:var(--text-main);font-size:1.15rem;font-weight:800;line-height:1.3}.btn-sheet-close{color:#64748b;cursor:pointer;background:#f1f5f9;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:30px;height:30px;display:flex}.sheet-meta-grid{border-radius:var(--radius-md);background:#f8fafc;border:1px solid #e2e8f0;grid-template-columns:repeat(2,1fr);gap:10px;padding:12px;display:grid}.meta-item{flex-direction:column;display:flex}.meta-item-label{color:#64748b;text-transform:uppercase;font-size:.68rem;font-weight:600}.meta-item-value{color:var(--text-main);font-size:.85rem;font-weight:700}.sheet-actions{gap:10px;display:flex}.btn-sheet-download{background:var(--app-primary);color:#fff;border-radius:var(--radius-full);cursor:pointer;border:none;flex:1;justify-content:center;align-items:center;gap:8px;padding:12px;font-size:.9rem;font-weight:700;text-decoration:none;display:flex}.btn-sheet-share{color:#334155;border-radius:var(--radius-full);cursor:pointer;background:#f1f5f9;border:none;align-items:center;gap:6px;padding:12px 18px;font-size:.9rem;font-weight:700;display:flex}.install-gate-wrapper{z-index:9999;background:radial-gradient(circle at 50% 20%,#1e3a8a 0%,#0f172a 100%);justify-content:center;align-items:center;padding:16px;animation:.25s fade-in;display:flex;position:fixed;inset:0}.install-gate-card{text-align:center;background:#fff;border-radius:30px;flex-direction:column;align-items:center;width:100%;max-width:390px;max-height:94vh;padding:28px 22px;display:flex;position:relative;overflow:hidden auto;box-shadow:0 25px 60px -15px #00000080}.install-gate-card:before{content:"";background:linear-gradient(135deg,#1e40af 0%,#3b82f6 100%);height:80px;position:absolute;top:0;left:0;right:0}.install-gate-logo{z-index:2;background:#fff;border:4px solid #fff;border-radius:50%;justify-content:center;align-items:center;width:84px;height:84px;margin-top:6px;margin-bottom:12px;display:flex;position:relative;overflow:hidden;box-shadow:0 8px 24px #2563eb59}.install-gate-logo img{object-fit:contain;width:80%;height:80%}.install-gate-title{color:var(--text-main);letter-spacing:-.02em;font-size:1.25rem;font-weight:800}.install-gate-subtitle{color:var(--text-muted);margin-top:2px;margin-bottom:14px;font-size:.78rem}.install-gate-notice{color:#1e40af;text-align:left;background:#eff6ff;border:1px solid #bfdbfe;border-radius:14px;margin-bottom:16px;padding:10px 12px;font-size:.77rem;line-height:1.45}.install-gate-features{text-align:left;background:#f8fafc;border:1px solid #e2e8f0;border-radius:14px;flex-direction:column;gap:8px;width:100%;margin-bottom:18px;padding:12px 14px;display:flex}.install-gate-feat-item{color:#334155;align-items:center;gap:8px;font-size:.79rem;font-weight:600;display:flex}.btn-gate-install{color:#fff;border-radius:var(--radius-full);cursor:pointer;background:linear-gradient(135deg,#2563eb 0%,#1d4ed8 100%);border:none;justify-content:center;align-items:center;gap:8px;width:100%;padding:13px;font-size:.92rem;font-weight:800;transition:all .2s;display:flex;box-shadow:0 4px 16px #2563eb66}.btn-gate-skip{color:#94a3b8;cursor:pointer;background:0 0;border:none;margin-top:10px;padding:4px;font-size:.76rem;font-weight:600}