:root{color-scheme:light}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%;font-family:Inter,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:linear-gradient(180deg,#f7fbff,#fff 220px);color:#142032}.app-shell{min-height:100vh}.app-main{min-height:calc(100vh - 72px)}.skip-link{position:absolute;left:.5rem;top:-200px;background:#008ecc;color:#fff;padding:.6rem .9rem;border-radius:8px;z-index:400;text-decoration:none;font-weight:600}.skip-link:focus{top:.5rem}.hero-carousel-wrapper{display:flex;justify-content:center;margin-bottom:2rem;padding:0 1rem}.hero-carousel{position:relative;width:100%;max-width:1200px;min-height:280px;background:#2e2a33;border-radius:0 16px 16px 0;overflow:hidden;display:flex;align-items:center}.hero-carousel-inner{display:flex;align-items:center;justify-content:space-between;width:100%;padding:2rem 3rem 2rem 2.5rem;gap:2rem}.hero-text{color:#fff;flex-shrink:0}.hero-tagline{font-size:.95rem;margin:0 0 .25rem;opacity:.95}.hero-title{font-size:2.25rem;font-weight:700;margin:0 0 .5rem;line-height:1.2}.hero-subtitle{font-size:1rem;margin:0;opacity:.9}.hero-visual{flex:1;min-width:180px;display:flex;align-items:center;justify-content:flex-end}.hero-visual-placeholder{display:flex;gap:1rem;align-items:center;flex-wrap:wrap;justify-content:flex-end}.hero-visual-icon{font-size:3rem;opacity:.9}.arrow{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;border:none;background:#fff3;color:#fff;font-size:1.5rem;cursor:pointer;z-index:2;display:flex;align-items:center;justify-content:center;transition:background .2s}.arrow:hover{background:#ffffff59}.arrow.left{left:12px}.arrow.right{right:12px}.hero-dots{position:absolute;bottom:1.25rem;left:2.5rem;display:flex;gap:8px;z-index:2}.hero-dot{width:8px;height:8px;border-radius:50%;border:none;padding:0;background:#fff6;cursor:pointer;transition:background .2s}.hero-dot.active{background:#fff}.hero-dot:hover:not(.active){background:#ffffffb3}@media(max-width:768px){.hero-carousel{border-radius:12px;min-height:220px}.hero-carousel-inner{flex-direction:column;align-items:flex-start;padding:1.5rem 1.25rem 3rem}.hero-title{font-size:1.75rem}.hero-visual{display:none}.arrow{width:36px;height:36px;font-size:1.25rem}}.product-card{width:100%;min-width:0;background:#fff;border-radius:12px;box-shadow:0 2px 12px #00000014;overflow:hidden;cursor:pointer;flex-shrink:0;transition:box-shadow .2s,transform .2s}.product-card:hover{box-shadow:0 4px 20px #0000001f;transform:translateY(-2px)}.product-card-image-wrap{position:relative;width:100%;aspect-ratio:4 / 3;overflow:hidden;background:#f0f0f0}.product-card-image{width:100%;height:100%;object-fit:cover}.product-card-badge{position:absolute;top:10px;right:10px;background:#008ecc;color:#fff;font-size:.75rem;font-weight:600;padding:4px 8px;border-radius:4px}.product-card-info{padding:12px 14px}.product-card-title{font-size:1rem;font-weight:600;margin:0 0 6px;color:#2e2a33;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.product-card-seller{font-size:.8rem;color:#666;margin:0 0 6px}.product-card-price{font-size:1.1rem;font-weight:700;color:#2e2a33;margin:0 0 6px}.product-card-description{font-size:.8rem;color:#777;margin:0;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.product-card-cart-btn{margin-top:10px;width:100%;border:2px solid #0d6efd;border-radius:8px;padding:9px;background:transparent;color:#0d6efd;font-weight:600;cursor:pointer;transition:background .2s,color .2s}.product-card-cart-btn:hover:not(:disabled){background:#0d6efd;color:#fff}.product-card-cart-btn:disabled{opacity:.7;cursor:wait}.product-card-pay-btn{margin-top:6px;width:100%;border:none;border-radius:8px;padding:10px;background:#635bff;color:#fff;font-weight:600;cursor:pointer}.product-card-pay-btn:disabled{opacity:.7;cursor:wait}.product-card-chat-btn{margin-top:6px;width:100%;border:2px solid #16a34a;border-radius:8px;padding:9px;background:transparent;color:#16a34a;font-weight:600;cursor:pointer;transition:background .2s,color .2s}.product-card-chat-btn:hover{background:#16a34a;color:#fff}.product-card-delete-btn{margin-top:10px;width:100%;border:none;border-radius:8px;padding:10px;background:#dc2626;color:#fff;font-weight:600;cursor:pointer}.product-card-delete-btn:hover{background:#b91c1c}.product-card-delete-btn:disabled{opacity:.7;cursor:wait}.product-card-hint{margin-top:8px;font-size:.78rem;color:#64748b}.product-card-success{margin-top:8px;font-size:.78rem;color:#16a34a;font-weight:600}.product-card-error{margin-top:8px;font-size:.78rem;color:#b91c1c}.product-section{margin-bottom:2.5rem}.product-section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;flex-wrap:wrap;gap:.5rem}.product-section-heading{font-size:1.25rem;font-weight:600;margin:0;color:#2e2a33}.product-section-category{font-weight:700;text-decoration:underline;text-underline-offset:4px;text-decoration-color:#008ecc;color:#2e2a33}.product-section-view-all{font-size:.95rem;color:#008ecc;text-decoration:none;font-weight:500}.product-section-view-all:hover{text-decoration:underline}.product-section-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1.25rem}@media(min-width:900px){.product-section-cards{grid-template-columns:repeat(4,1fr)}}@media(max-width:640px){.product-section-cards{grid-template-columns:repeat(2,1fr);gap:1rem}}.marketplace{padding:1.25rem 2rem 2.5rem;max-width:1400px;margin:0 auto}.marketplace-page-title{font-size:1.75rem;font-weight:700;margin:0 0 1.25rem;color:#2e2a33}.marketplace-intro{margin:-.5rem 0 1.25rem;color:#475467;max-width:760px}.marketplace-payment-message{margin:0 0 1rem;color:#166534;font-weight:600}.marketplace-search-row{display:flex;align-items:center;gap:.75rem;margin-bottom:1.5rem;flex-wrap:wrap}.search-wrap{flex:1;min-width:200px;position:relative;display:flex;align-items:center}.search-icon{position:absolute;left:14px;font-size:1rem;pointer-events:none;opacity:.7}.search-input{width:100%;padding:12px 14px 12px 42px;border:1px solid #ddd;border-radius:8px;font-size:.95rem;background:#fafafa}.search-input::placeholder{color:#888}.search-input:focus{outline:none;border-color:#008ecc;background:#fff}.add-item{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border:none;border-radius:8px;background:#2e2a33;color:#fff;font-size:.95rem;font-weight:600;cursor:pointer;text-decoration:none;flex-shrink:0;transition:background .2s}.add-item:hover{background:#3d3845}.add-item-icon{font-size:1.2rem;line-height:1}.listing-form{display:flex;flex-direction:column;gap:12px;margin-bottom:2rem;padding:1.25rem;border-radius:12px;background:#f6f6f8;border:1px solid #eee}.listing-form .form-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px}.listing-form input,.listing-form select,.listing-form textarea{padding:10px 12px;border-radius:6px;border:1px solid #ccc;font-size:14px;background:#fff}.listing-form textarea{min-height:80px;resize:vertical;grid-column:1 / -1}.listing-form-image-label{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;font-size:.9rem;color:#555}.listing-form-image-label span:first-child{font-weight:500;color:#2e2a33}.listing-form-image-input{font-size:.85rem}.listing-form-image-name{color:#008ecc}.listing-form-image-hint{color:#888;font-style:italic}.required-star{color:#c0392b;font-weight:700}.form-actions{display:flex;gap:12px;align-items:center}.submit-listing{padding:10px 18px;border:none;border-radius:6px;background:#2e2a33;color:#fff;cursor:pointer;font-size:.95rem}.submit-listing:hover:not(:disabled){background:#3d3845}.submit-listing:disabled{opacity:.6;cursor:not-allowed}.cancel-listing{padding:10px 18px;border:1px solid #2e2a33;border-radius:6px;background:transparent;color:#2e2a33;cursor:pointer;font-size:.95rem}.cancel-listing:hover{background:#2e2a330f}.form-error{color:#b42318;font-size:14px;margin:0}.marketplace-empty{color:#666;font-size:.95rem;margin:1rem 0 0}.marketplace-category .marketplace-page-title{margin-bottom:1rem}@media(max-width:768px){.marketplace{padding:1rem 1rem 2rem}.marketplace-page-title{font-size:1.5rem}.marketplace-search-row{gap:.5rem}.search-wrap{min-width:0;order:1;width:100%}.add-item{order:3;flex:1;justify-content:center}}@media(max-width:480px){.marketplace{padding:.75rem .75rem 1.5rem}.add-item{width:100%;justify-content:center}}.marketplace-ai-status{margin:6px 0 18px;color:#0f4c5c;font-size:.95rem}.course-exchange-page{padding:28px 40px;background:#f8fafc;min-height:calc(100vh - 85px)}.course-exchange-header h1{margin:0;color:#111827;font-size:2rem}.course-exchange-header p{margin-top:8px;max-width:760px;color:#4b5563;line-height:1.5}.course-exchange-header>button,.course-exchange-header>a{display:inline-flex;align-items:center;gap:8px;margin-top:12px;padding:10px 20px;border:none;border-radius:10px;background:#008ecc;color:#fff;font-weight:600;font-size:.95rem;cursor:pointer;text-decoration:none;transition:background .2s}.course-exchange-header>button:hover,.course-exchange-header>a:hover{background:#007ab8}.course-exchange-filters{margin-top:20px;display:grid;grid-template-columns:2fr 1fr;gap:12px;align-items:center;background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:14px}.course-exchange-filters input,.course-exchange-filters select{border:1px solid #d1d5db;border-radius:8px;padding:10px 12px;font-size:.95rem}.course-exchange-grid{margin-top:18px;display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px}.course-exchange-card{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:16px;box-shadow:0 8px 18px #0000000d}.card-top-row{display:flex;justify-content:space-between;align-items:center;gap:10px}.course-exchange-card h2{margin:0;color:#111827;font-size:1.04rem}.student-name{margin:10px 0;color:#1e40af;font-weight:600}.course-exchange-card p{margin:6px 0;color:#374151;font-size:.92rem}.status-pill{border-radius:999px;padding:4px 10px;font-size:.78rem;font-weight:700;border:1px solid transparent}.status-pill.open{color:#166534;background:#dcfce7;border-color:#bbf7d0}.status-pill.matched{color:#92400e;background:#fef3c7;border-color:#fde68a}.status-pill.closed{color:#7f1d1d;background:#fee2e2;border-color:#fecaca}.course-exchange-card button{margin-top:14px;width:100%;border:none;border-radius:8px;padding:10px;background:#008ecc;color:#fff;font-weight:600;cursor:pointer}@media(max-width:900px){.course-exchange-filters{grid-template-columns:1fr}}@media(max-width:768px){.course-exchange-page{padding:20px 16px}.course-exchange-header h1{font-size:1.5rem}}.housing-page{padding:28px 40px;background:linear-gradient(180deg,#f7faff,#f8fafc 40%);min-height:calc(100vh - 72px)}.housing-header h1{margin:0;color:#111827;font-size:2.1rem}.housing-eyebrow{margin:0 0 8px;font-weight:700;color:#0f4c81;letter-spacing:.02em}.housing-header p{margin-top:8px;max-width:760px;color:#4b5563;line-height:1.5}.housing-header>button{border:none;border-radius:10px;padding:10px 18px;margin-top:10px;background:#0f4c81;color:#fff;font-weight:600;cursor:pointer}.housing-neighborhoods{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.neighborhood-chip{border:1px solid #cfd9e5;border-radius:999px;padding:7px 12px;background:#fff;color:#1f3b57;font-weight:600;cursor:pointer;transition:all .2s ease}.neighborhood-chip:hover,.neighborhood-chip.active{border-color:#0f4c81;background:#0f4c81;color:#fff}.housing-metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin:18px 0}.housing-metrics article{background:#fff;border:1px solid #dbe5f1;border-radius:12px;padding:12px;display:grid;gap:4px}.housing-metrics strong{color:#0f4c81;font-size:1.4rem}.housing-metrics span{color:#4b5563;font-size:.85rem}.housing-filters{margin-top:20px;display:grid;grid-template-columns:2fr 1fr 1fr;gap:12px;align-items:center;background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:14px}.housing-filters input[type=text],.housing-filters input[type=number],.housing-filters input[type=date],.housing-filters select,.budget-range input{border:1px solid #d1d5db;border-radius:8px;padding:10px 12px;font-size:.95rem}.budget-range{grid-column:1 / -1;display:grid;grid-template-columns:1fr 1fr auto;gap:10px;align-items:end}.budget-range label{display:grid;gap:6px;font-size:.9rem;color:#374151}.clear-budget{border:none;border-radius:8px;padding:10px 14px;background:#e2e8f0;color:#1e293b;font-weight:600;cursor:pointer}.budget-summary{grid-column:1 / -1;margin:0;color:#475569;font-size:.9rem}.housing-grid{margin-top:18px;display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:16px}.housing-card{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:16px;box-shadow:0 8px 18px #0f4c8114}.housing-card-head{display:flex;justify-content:space-between;align-items:start;gap:8px}.housing-card h2{margin:0;color:#111827;font-size:1.1rem}.featured-badge{background:#e9f4ff;color:#0f4c81;border:1px solid #b9d9f8;border-radius:999px;font-size:.72rem;font-weight:700;padding:4px 8px;white-space:nowrap}.housing-location{display:inline-block;margin:8px 0 10px;padding:4px 10px;border-radius:999px;background:#dbeafe;color:#1d4ed8;font-weight:600;font-size:.82rem}.housing-card p{margin:6px 0;color:#374151;font-size:.92rem}.housing-card button{margin-top:14px;width:100%;border:none;border-radius:8px;padding:10px;background:#008ecc;color:#fff;font-weight:600;cursor:pointer}@media(max-width:900px){.housing-filters,.budget-range{grid-template-columns:1fr}.housing-card-head{flex-direction:column}}@media(max-width:768px){.housing-page{padding:20px 16px}.housing-header h1{font-size:1.5rem}}.tutoring-page{padding:28px 40px;background:#f8fafc;min-height:calc(100vh - 72px)}.tutoring-header h1{margin:0;color:#111827;font-size:2rem}.tutoring-header p{margin-top:8px;max-width:760px;color:#4b5563;line-height:1.5}.tutoring-header>button,.tutoring-header>a{display:inline-flex;align-items:center;gap:8px;margin-top:12px;padding:10px 20px;border:none;border-radius:10px;background:#008ecc;color:#fff;font-weight:600;font-size:.95rem;cursor:pointer;text-decoration:none;transition:background .2s}.tutoring-header>button:hover,.tutoring-header>a:hover{background:#007ab8}.tutoring-filters{margin-top:20px;display:grid;grid-template-columns:2fr 1fr auto;gap:12px;align-items:center;background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:14px}.tutoring-filters input[type=text],.tutoring-filters input[type=number],.tutoring-filters select{border:1px solid #d1d5db;border-radius:8px;padding:10px 12px;font-size:.95rem}.tutoring-filters label{font-size:.9rem;color:#374151}.max-rate-controls{grid-column:1 / -1;display:flex;flex-wrap:wrap;gap:8px;align-items:center}.max-rate-input-wrapper{display:inline-flex;align-items:center;border:1px solid #d1d5db;border-radius:8px;background:#fff;overflow:hidden}.max-rate-input-wrapper span{padding:0 10px;color:#6b7280;font-size:.9rem}#max-rate-slider{border:none;min-width:120px;padding:10px 12px 10px 0}.rate-chip{border:1px solid #cbd5e1;border-radius:999px;background:#f8fafc;color:#334155;padding:6px 10px;font-size:.82rem;font-weight:600;cursor:pointer}.rate-chip:hover{background:#e2e8f0}.rate-chip-clear{color:#7f1d1d;border-color:#fecaca;background:#fff1f2}.tutoring-grid{margin-top:18px;display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}.tutoring-card{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:16px;box-shadow:0 8px 18px #0000000d}.tutoring-card h2{margin:0;color:#111827;font-size:1.08rem}.tutoring-tutor{display:inline-block;margin:8px 0 10px;padding:4px 10px;border-radius:999px;background:#dcfce7;color:#166534;font-weight:600;font-size:.82rem}.tutoring-card p{margin:6px 0;color:#374151;font-size:.92rem}.tutoring-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.tutoring-tags span{font-size:.78rem;border:1px solid #cbd5e1;border-radius:999px;padding:4px 8px;color:#475569}.tutoring-card button{margin-top:14px;width:100%;border:none;border-radius:8px;padding:10px;background:#008ecc;color:#fff;font-weight:600;cursor:pointer}.saved-only-toggle{grid-column:1 / -1;display:inline-flex;align-items:center;gap:8px;color:#374151;font-size:.9rem}.card-actions-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}.card-actions-row button{margin-top:0;width:100%}.card-actions-row .is-secondary{background:#e2e8f0;color:#1e293b}.empty-state{color:#6b7280;padding:12px}@media(max-width:900px){.tutoring-filters{grid-template-columns:1fr}}@media(max-width:768px){.tutoring-page{padding:20px 16px}.tutoring-header h1{font-size:1.5rem}}body.menu-open{overflow:hidden}.nav{padding:0;background-color:#fff;box-shadow:0 2px 12px #00000014;min-height:72px;width:100%;display:flex;align-items:center;position:sticky;top:0;z-index:200}.navbar-container{max-width:1536px;margin:0 auto;padding:0 1.5rem;display:flex;align-items:center;justify-content:space-between;width:100%;gap:1rem;position:relative}.nav-logo-link{display:flex;align-items:center;flex-shrink:0;text-decoration:none}.logo{width:10rem;height:auto;max-height:2.75rem;display:block}.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;padding:10px;border:none;background:transparent;cursor:pointer;border-radius:8px;z-index:202}.nav-toggle:hover{background:#f0f0f0}.nav-toggle:focus-visible,.auth-button:focus-visible,.list-item>a:focus-visible,.nav-logo-link:focus-visible{outline:2px solid #008ecc;outline-offset:2px;border-radius:8px}.nav-toggle-bar{display:block;width:22px;height:2px;background:#2e2a33;border-radius:1px;transition:transform .2s,opacity .2s}.nav-menu{display:flex;align-items:center;justify-content:space-between;flex:1;gap:1rem}.list{list-style:none;display:flex;gap:1rem;margin:0;padding:0;justify-content:center}.list-item{margin:0}.list-item>a{text-decoration:none;color:#2e2a33;font-weight:500;font-size:.95rem;padding:.4rem .75rem;display:inline-block;border-radius:999px}.list-item>a:hover{color:#008ecc;background:#eef7fb}a.active{color:#008ecc;font-weight:700;background:#e5f5fb}.student{display:flex;align-items:center;gap:.75rem;flex-shrink:0}.welcome{font-weight:600;font-size:.95rem;margin:0;color:#2e2a33;white-space:nowrap}.auth-buttons{display:flex;align-items:center;gap:.5rem}.auth-button{display:inline-flex;align-items:center;justify-content:center;border:none;background:#008ecc;color:#fff;padding:.5rem 1rem;border-radius:6px;cursor:pointer;font-size:.875rem;font-weight:500;white-space:nowrap;transition:transform .15s ease,background .15s ease}.auth-button:hover{background:#007ab8;transform:translateY(-1px)}.link-button{text-decoration:none;color:#fff}.profile-link{margin-right:0}.nav-backdrop{display:none}@media(max-width:992px){.welcome{font-size:.9rem}}@media(max-width:768px){.nav{min-height:64px}.navbar-container{padding:0 1rem}.logo{width:8rem;max-height:2.25rem}.nav-toggle{display:flex}.nav-menu{position:fixed;top:0;right:0;bottom:0;width:min(280px,85vw);background:#fff;box-shadow:-4px 0 20px #0000001f;flex-direction:column;align-items:stretch;justify-content:flex-start;padding:4.5rem 1.5rem 1.5rem;gap:1.5rem;z-index:201;transform:translate(100%);transition:transform .25s ease-out;overflow-y:auto}.nav-menu-open{transform:translate(0)}.nav-backdrop{display:block;position:fixed;inset:0;background:#0a121f73;border:none;padding:0;margin:0;z-index:200;cursor:pointer}.list{flex-direction:column;align-items:stretch;gap:.35rem;border-bottom:1px solid #eee;padding-bottom:1rem}.list-item>a{display:block;padding:.75rem;font-size:1rem;border-radius:8px}.student{flex-direction:column;align-items:stretch;gap:.75rem;padding-top:.5rem}.welcome{text-align:center;white-space:normal}.auth-buttons{flex-direction:column;gap:.5rem}.auth-button{width:100%;padding:.6rem 1rem}.profile-link{margin-right:0}}@media(max-width:480px){.logo{width:7rem}}.auth-page{min-height:calc(100vh - 72px);display:flex;justify-content:center;align-items:center;background:#f3f7fb;padding:2rem}.auth-card{width:100%;max-width:460px;background:#fff;border-radius:12px;box-shadow:0 10px 40px #0d264c1f;padding:2rem}.auth-card h1{margin:0}.auth-card p{color:#4b5563}.auth-form{display:flex;flex-direction:column;gap:.75rem}.auth-form input{padding:.75rem;border:1px solid #cdd6e1;border-radius:8px;font-size:.95rem;transition:border-color .15s,box-shadow .15s}.auth-form input:focus{outline:none;border-color:#008ecc;box-shadow:0 0 0 3px #008ecc26}.auth-form button{margin-top:.4rem;padding:.8rem;border:none;border-radius:8px;background:#008ecc;color:#fff;font-weight:600;font-size:.95rem;cursor:pointer;transition:background .15s,transform .15s}.auth-form button:hover:not(:disabled){background:#007ab8;transform:translateY(-1px)}.auth-form button:disabled{opacity:.6;cursor:not-allowed}.auth-switch{margin-top:1rem;background:none;border:none;color:#008ecc;cursor:pointer}.auth-secondary-button{margin-top:.4rem;padding:.8rem;border:1px solid #008ecc;border-radius:8px;background:#fff;color:#008ecc;font-weight:600;cursor:pointer}.auth-actions{display:flex;flex-direction:column;gap:.25rem}.auth-error{color:#c00;margin:0}.auth-success{color:#047857;background:#ecfdf5;border:1px solid #a7f3d0;border-radius:8px;padding:.6rem .8rem;margin:0;font-weight:500}.avatar{border-radius:50%;object-fit:cover;flex-shrink:0;display:block}.avatar-xs{width:28px;height:28px;font-size:.65rem}.avatar-sm{width:36px;height:36px;font-size:.75rem}.avatar-md{width:44px;height:44px;font-size:.95rem}.avatar-lg{width:80px;height:80px;font-size:1.6rem}.avatar-initials{display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#2f6fff,#1a4fd6);color:#fff;font-weight:700;-webkit-user-select:none;user-select:none;letter-spacing:.02em}.profile-page{display:flex;justify-content:center;padding:2rem}.profile-avatar-section{display:flex;align-items:center;gap:1.25rem;padding-bottom:1.5rem;margin-bottom:1.5rem;border-bottom:1px solid #e5e7eb;flex-wrap:wrap}.profile-avatar-actions{display:flex;flex-direction:column;gap:.5rem}.avatar-upload-btn{background:#2f6fff}.avatar-remove-btn{font-size:.85rem;padding:.4rem .8rem}.picture-error{width:100%;color:#c62828;font-size:.85rem;margin:0}.profile-card{width:min(800px,100%);background:#fff;border-radius:14px;box-shadow:0 12px 30px #0000001a;padding:1.5rem}.profile-subtitle{color:#5f6b7a;margin-bottom:1.25rem}.profile-header{display:flex;justify-content:space-between;gap:1rem;align-items:flex-start}.profile-button{border:none;border-radius:8px;background:#008ecc;color:#fff;font-weight:600;padding:.6rem 1rem;cursor:pointer}.profile-button.secondary{background:#e5e7eb;color:#1f2937}.profile-button.save{background:#059669}.profile-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}.profile-grid .label{font-size:.8rem;color:#6b7280;text-transform:uppercase;letter-spacing:.03em}.profile-grid p{margin:.25rem 0 0;font-weight:600}.profile-edit-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}.profile-edit-grid label{display:flex;flex-direction:column;gap:.4rem;color:#374151;font-weight:500}.profile-edit-grid input{border:1px solid #d1d5db;border-radius:8px;padding:.6rem .75rem}.profile-actions{grid-column:1 / -1;display:flex;gap:.75rem}.save-message{margin-top:1rem;color:#047857;font-weight:600}.back-link{display:inline-block;margin-top:1.5rem;text-decoration:none;color:#008ecc;font-weight:600}.chat-page{height:calc(100vh - 64px);display:flex;flex-direction:column;background:#f0f2f5;overflow:hidden}.chat-grid{flex:1;display:grid;grid-template-columns:300px 1fr;min-height:0}.chat-sidebar{display:flex;flex-direction:column;background:#fff;border-right:1px solid #e1e4e8;overflow:hidden}.chat-sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:1rem 1rem .75rem;border-bottom:1px solid #e1e4e8}.chat-sidebar-header h2{margin:0;font-size:1.1rem;font-weight:700;color:#111}.new-chat-btn{width:32px;height:32px;border:none;border-radius:50%;background:#2f6fff;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;transition:background .15s}.new-chat-btn:hover{background:#1a4fd6}.new-chat-panel{padding:.75rem 1rem;border-bottom:1px solid #e1e4e8;background:#f7f9ff}.new-chat-label{margin:0 0 .5rem;font-size:.78rem;font-weight:600;color:#5f6b7a;text-transform:uppercase;letter-spacing:.04em}.chat-user-select{width:100%;border:1px solid #d1d5db;border-radius:8px;padding:.5rem .65rem;font:inherit;font-size:.875rem;background:#fff;cursor:pointer}.chat-user-select:focus{outline:none;border-color:#2f6fff;box-shadow:0 0 0 3px #2f6fff26}.chat-loading{padding:.5rem 1rem;font-size:.85rem;color:#888}.chat-list{list-style:none;padding:.5rem 0;margin:0;overflow-y:auto;flex:1}.chat-list-item{width:100%;display:flex;align-items:center;gap:.65rem;padding:.6rem 1rem;border:none;background:transparent;cursor:pointer;text-align:left;transition:background .1s}.chat-list-item:hover{background:#f5f7fa}.chat-list-item.active{background:#eef3ff}.chat-list-item-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:.15rem}.chat-list-item-name{font-size:.9rem;font-weight:600;color:#111;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-list-item.active .chat-list-item-name{color:#2f6fff}.chat-list-item-preview{font-size:.78rem;color:#888;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-list-item-time{font-size:.7rem;color:#aaa;white-space:nowrap;align-self:flex-start;padding-top:2px}.chat-empty-state{padding:1.5rem 1rem;font-size:.85rem;color:#999;text-align:center}.chat-thread{display:flex;flex-direction:column;min-height:0;background:#f0f2f5}.chat-thread-header{display:flex;align-items:center;gap:.75rem;padding:.85rem 1.25rem;background:#fff;border-bottom:1px solid #e1e4e8;flex-shrink:0}.chat-thread-header-info{display:flex;flex-direction:column;gap:.1rem}.chat-thread-name{font-size:.95rem;font-weight:700;color:#111}.chat-thread-status{font-size:.75rem;color:#888}.chat-messages{flex:1;overflow-y:auto;padding:1rem 1.25rem;display:flex;flex-direction:column;gap:.2rem;min-height:0}.chat-no-messages{text-align:center;color:#aaa;font-size:.9rem;margin:auto;padding:2rem 0}.chat-message-row{display:flex;gap:.5rem;align-items:flex-end;max-width:72%}.chat-message-row.mine{align-self:flex-end;flex-direction:row-reverse}.chat-message-row.theirs{align-self:flex-start}.chat-message-avatar{width:28px;flex-shrink:0;display:flex;align-items:flex-end;padding-bottom:.25rem}.chat-avatar-spacer{width:28px;height:28px}.chat-message-content{display:flex;flex-direction:column;gap:.2rem;min-width:0}.chat-message-row.mine .chat-message-content{align-items:flex-end}.chat-message-sender{font-size:.72rem;font-weight:600;color:#666;padding:0 .5rem}.chat-bubble{padding:.6rem .9rem;border-radius:18px;word-break:break-word;max-width:100%}.chat-bubble p{margin:0;font-size:.9rem;line-height:1.45}.bubble-mine{background:#2f6fff;color:#fff;border-bottom-right-radius:4px}.bubble-theirs{background:#fff;color:#111;border-bottom-left-radius:4px;box-shadow:0 1px 2px #00000014}.chat-message-time{font-size:.68rem;color:#aaa;padding:0 .5rem}.chat-compose{display:flex;align-items:flex-end;gap:.6rem;padding:.75rem 1.25rem;background:#fff;border-top:1px solid #e1e4e8;flex-shrink:0}.chat-compose textarea{flex:1;border:1px solid #d1d5db;border-radius:20px;padding:.6rem 1rem;font:inherit;font-size:.9rem;resize:none;line-height:1.4;max-height:120px;overflow-y:auto;transition:border-color .15s}.chat-compose textarea:focus{outline:none;border-color:#2f6fff;box-shadow:0 0 0 3px #2f6fff1f}.chat-send-btn{width:40px;height:40px;border:none;border-radius:50%;background:#2f6fff;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;transition:background .15s,transform .1s}.chat-send-btn:hover:not(:disabled){background:#1a4fd6;transform:scale(1.05)}.chat-send-btn:disabled{background:#c5d4f5;cursor:not-allowed;transform:none}.chat-error{margin:0;padding:.4rem 1.25rem;color:#c62828;font-size:.82rem;background:#fff5f5;flex-shrink:0}.chat-empty-thread{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.75rem;color:#aaa;font-size:.9rem}.chat-empty-thread-icon{opacity:.6}@media(max-width:680px){.chat-page{height:auto;min-height:calc(100vh - 64px)}.chat-grid{grid-template-columns:1fr;grid-template-rows:auto 1fr}.chat-sidebar{border-right:none;border-bottom:1px solid #e1e4e8;max-height:280px}.chat-thread{min-height:400px}}.cart-page{max-width:720px;margin:2rem auto;padding:0 1rem 4rem}.cart-title{font-size:1.75rem;font-weight:700;margin-bottom:1.5rem}.cart-loading{color:#666;font-size:.95rem}.cart-payment-message{background:#d4edda;color:#155724;border:1px solid #c3e6cb;border-radius:6px;padding:.75rem 1rem;margin-bottom:1rem;font-size:.95rem}.cart-error{background:#f8d7da;color:#721c24;border:1px solid #f5c6cb;border-radius:6px;padding:.75rem 1rem;margin-bottom:1rem;font-size:.95rem}.cart-empty{text-align:center;padding:3rem 0;color:#555}.cart-browse-btn{margin-top:1rem;padding:.6rem 1.4rem;background:#0d6efd;color:#fff;border:none;border-radius:6px;font-size:.95rem;cursor:pointer;transition:background .2s}.cart-browse-btn:hover{background:#0b5ed7}.cart-items-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.75rem}.cart-item{display:flex;align-items:center;justify-content:space-between;background:#fff;border:1px solid #e0e0e0;border-radius:8px;padding:.85rem 1.1rem;gap:1rem}.cart-item-info{display:flex;flex-direction:column;gap:.2rem;flex:1;min-width:0}.cart-item-title{font-weight:600;font-size:.95rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cart-item-price{font-size:.9rem;color:#444}.cart-item-remove{background:transparent;border:1px solid #dc3545;color:#dc3545;border-radius:5px;padding:.3rem .75rem;font-size:.85rem;cursor:pointer;white-space:nowrap;transition:background .2s,color .2s;flex-shrink:0}.cart-item-remove:hover:not(:disabled){background:#dc3545;color:#fff}.cart-item-remove:disabled{opacity:.5;cursor:not-allowed}.cart-summary{margin-top:1.75rem;padding-top:1.25rem;border-top:2px solid #e0e0e0;display:flex;flex-direction:column;align-items:flex-end;gap:.75rem}.cart-total{font-size:1.1rem;margin:0}.cart-checkout-btn{padding:.7rem 1.75rem;background:#198754;color:#fff;border:none;border-radius:6px;font-size:1rem;font-weight:600;cursor:pointer;transition:background .2s}.cart-checkout-btn:hover:not(:disabled){background:#157347}.cart-checkout-btn:disabled{opacity:.6;cursor:not-allowed}.admin-panel{max-width:1200px;margin:2rem auto;padding:0 1.5rem 4rem}.admin-title{font-size:1.8rem;font-weight:700;margin-bottom:1.5rem;color:#2e2a33}.admin-tabs{display:flex;gap:.5rem;margin-bottom:1.5rem;border-bottom:2px solid #e5e5e5}.admin-tab{padding:.6rem 1.4rem;background:none;border:none;border-bottom:3px solid transparent;cursor:pointer;font-size:.95rem;font-weight:500;color:#666;margin-bottom:-2px;transition:color .15s,border-color .15s}.admin-tab:hover{color:#2e2a33}.admin-tab.active{color:#008ecc;border-bottom-color:#008ecc}.admin-error{color:#c0392b;background:#fdf2f2;border:1px solid #f5c6cb;border-radius:6px;padding:.75rem 1rem;margin-bottom:1rem;font-size:.9rem}.admin-loading{color:#666;font-style:italic}.analytics-section{margin-bottom:2rem}.analytics-section-title{font-size:1rem;font-weight:600;color:#555;text-transform:uppercase;letter-spacing:.05em;margin-bottom:.75rem}.admin-stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(155px,1fr));gap:1rem}.admin-stat-card{background:#f7f7f7;border:1px solid #e5e5e5;border-radius:10px;padding:1.2rem 1rem;display:flex;flex-direction:column;align-items:center;gap:.4rem;text-align:center}.admin-stat-card.stat-green{border-color:#c3e6cb;background:#f0faf2}.admin-stat-card.stat-yellow{border-color:#ffeeba;background:#fffdf0}.admin-stat-card.stat-red{border-color:#f5c6cb;background:#fdf2f2}.admin-stat-card.stat-blue{border-color:#bee5eb;background:#f0f9fc}.admin-stat-card.stat-purple{border-color:#d6bfee;background:#f7f0fd}.stat-value{font-size:2rem;font-weight:700;color:#2e2a33;line-height:1}.stat-label{font-size:.78rem;color:#666;font-weight:500;text-transform:uppercase;letter-spacing:.04em}.admin-table{width:100%;border-collapse:collapse;font-size:.875rem}.admin-table th{text-align:left;padding:.75rem;border-bottom:2px solid #e5e5e5;color:#555;font-weight:600;font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;white-space:nowrap}.admin-table td{padding:.65rem .75rem;border-bottom:1px solid #f0f0f0;color:#333;vertical-align:middle}.admin-table tr:last-child td{border-bottom:none}.admin-table tr:hover td{background:#fafafa}.admin-empty{text-align:center;color:#999;padding:2rem!important;font-style:italic}.admin-select{padding:.3rem .5rem;border:1px solid #ddd;border-radius:5px;font-size:.85rem;background:#fff;cursor:pointer}.admin-select.status-active{color:#155724;border-color:#c3e6cb;background:#f0faf2}.admin-select.status-suspended{color:#856404;border-color:#ffeeba;background:#fffdf0}.admin-select.status-banned{color:#721c24;border-color:#f5c6cb;background:#fdf2f2}.admin-select.status-pending{color:#6c6c6c}.admin-select.status-deleted{color:#999}.post-subtabs{display:flex;gap:.4rem;margin-bottom:1.25rem;border-bottom:2px solid #eee}.post-subtab{padding:.5rem 1.1rem;background:none;border:none;border-bottom:3px solid transparent;cursor:pointer;font-size:.9rem;font-weight:500;color:#777;margin-bottom:-2px;transition:color .15s,border-color .15s}.post-subtab:hover{color:#2e2a33}.post-subtab.active{color:#008ecc;border-bottom-color:#008ecc}.post-table-wrapper{overflow-x:auto}.action-cell{display:flex;gap:.4rem;white-space:nowrap}.action-btn{padding:.28rem .65rem;border:none;border-radius:5px;font-size:.8rem;font-weight:500;cursor:pointer;transition:opacity .15s}.action-btn:hover{opacity:.85}.edit-btn{background:#e8f4fd;color:#07a}.delete-btn{background:#fdf2f2;color:#c0392b}.status-badge{padding:.2rem .55rem;border-radius:20px;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.03em}.status-badge.status-published{background:#f0faf2;color:#155724}.status-badge.status-sold{background:#f0f9fc;color:#0c5460}.status-badge.status-draft{background:#fffdf0;color:#856404}.status-badge.status-archived{background:#f4f4f4;color:#666}.modal-overlay{position:fixed;inset:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:1000}.modal-box{background:#fff;border-radius:12px;padding:2rem;width:100%;max-width:480px;max-height:90vh;overflow-y:auto;box-shadow:0 8px 32px #0000002e}.modal-title{font-size:1.1rem;font-weight:700;margin-bottom:1.25rem;color:#2e2a33}.modal-field{margin-bottom:1rem}.modal-label{display:block;font-size:.82rem;font-weight:600;color:#555;margin-bottom:.3rem;text-transform:uppercase;letter-spacing:.03em}.modal-input{width:100%;padding:.5rem .7rem;border:1px solid #ddd;border-radius:6px;font-size:.9rem;outline:none;box-sizing:border-box}.modal-input:focus{border-color:#008ecc;box-shadow:0 0 0 2px #008ecc26}.modal-textarea{resize:vertical;min-height:80px}.modal-actions{display:flex;gap:.75rem;margin-top:1.5rem}.modal-btn{flex:1;padding:.6rem;border:none;border-radius:7px;font-size:.9rem;font-weight:600;cursor:pointer;transition:opacity .15s}.modal-btn:hover{opacity:.88}.modal-btn-save{background:#008ecc;color:#fff}.modal-btn-cancel{background:#f0f0f0;color:#555}
