/* Student app styles — design tokens & shared primitives live in tokens.css */
  img{display:block;max-width:100%}

  /* ---------- App-only button variants ---------- */
  .btn-green:disabled{background:#9DBFAF;cursor:default}
  .btn-clay{background:var(--clay);color:#fff}
  .btn-clay:hover{background:#DB5A3B}
  .btn-quiet{background:var(--sand);color:var(--body);border:1px solid var(--border)}
  .btn-quiet:hover{background:#EDE6D6}
  .btn-sm{padding:9px 18px;font-size:14px}

  .card{background:#fff;border:1px solid var(--border);border-radius:24px}

  .field{margin-bottom:20px}
  .field label{display:block;font-weight:600;font-size:14.5px;color:var(--ink);margin-bottom:8px}
  .field label .opt{font-weight:500;color:var(--muted);font-size:13px}
  input[type="text"],input[type="email"],input[type="password"],input[type="number"],select,textarea{
    width:100%;font-family:'Hanken Grotesk',sans-serif;font-size:15.5px;color:var(--ink);
    background:var(--canvas);border:1.5px solid var(--border);border-radius:14px;
    padding:13px 16px;outline:none;transition:border-color .15s, box-shadow .15s;
    appearance:none;-webkit-appearance:none;
  }
  select{
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2315724E' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat:no-repeat;background-position:right 16px center;padding-right:44px;cursor:pointer;
  }
  textarea{resize:vertical;min-height:84px;line-height:1.5}
  input:focus,select:focus,textarea:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(21,114,78,.14)}
  input::placeholder,textarea::placeholder{color:#AEB6AF}
  .hint{font-size:12.5px;color:var(--muted);margin:7px 2px 0}
  .field-error{display:none;font-size:13px;color:var(--clay);font-weight:600;margin:7px 2px 0}
  .field.invalid input,.field.invalid select,.field.invalid .photo-drop{border-color:var(--clay)}
  .field.invalid .field-error{display:block}

  .view{display:none}
  .view.active{display:block}

  /* ---------- Top navigation ---------- */
  .nav{
    position:sticky;top:0;z-index:40;display:flex;align-items:center;justify-content:space-between;
    padding:16px 32px;background:rgba(251,248,241,.92);backdrop-filter:blur(8px);
    border-bottom:1px solid var(--border);
  }
  .nav.on-forest{background:var(--forest);border-bottom:1px solid rgba(234,243,236,.12)}
  .logo-row{display:flex;align-items:center;gap:12px;cursor:pointer}
  .logo-badge{width:40px;height:40px;border-radius:12px;background:var(--spring);display:flex;align-items:center;justify-content:center;flex:none}
  .wordmark{font-family:'Bricolage Grotesque',sans-serif;font-weight:700;font-size:22px;letter-spacing:-0.01em;color:var(--ink)}
  .nav.on-forest .wordmark{color:var(--canvas)}
  .nav-links{display:flex;align-items:center;gap:8px}
  .nav-tab{
    background:none;border:none;cursor:pointer;font-weight:600;font-size:14.5px;color:var(--body);
    padding:9px 15px;border-radius:999px;position:relative;
  }
  .nav-tab:hover{background:var(--sand)}
  .nav-tab.current{background:var(--forest);color:var(--canvas)}
  /* Signed-in tabs on the dark landing/login nav */
  .nav.on-forest .nav-tab{color:#EAF3EC}
  .nav.on-forest .nav-tab:hover{background:rgba(234,243,236,.14)}
  .nav.on-forest .nav-tab.current{background:var(--spring);color:var(--forest)}
  .nav-tab .req-dot{
    position:absolute;top:4px;right:6px;min-width:17px;height:17px;padding:0 4px;border-radius:999px;
    background:var(--clay);color:#fff;font-size:11px;font-weight:700;display:none;align-items:center;justify-content:center;
  }
  .avatar-chip{
    display:flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--border);
    border-radius:999px;padding:5px 14px 5px 5px;cursor:pointer;font-weight:600;font-size:14px;color:var(--ink);
  }
  .avatar-chip:hover{border-color:var(--green)}
  .avatar{
    width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;
    font-weight:700;font-size:13px;color:#fff;flex:none;
  }

  .market-actions{display:flex;align-items:center;gap:10px;flex:none}
  .market-actions .scope-on{background:var(--forest);color:var(--canvas);border-color:var(--forest)}
  @media (max-width:720px){ .market-actions{flex-direction:column;align-items:stretch} }

  /* ---------- Landing ---------- */
  .hero{
    position:relative;overflow:hidden;background:var(--forest);color:#EAF3EC;
    padding:96px 32px 110px;text-align:left;
  }
  .hero-inner{max-width:1060px;margin:0 auto;position:relative}
  .shape{position:absolute;border-radius:36px;pointer-events:none}
  .shape-a{top:-140px;right:-100px;width:420px;height:420px;border:1.5px solid rgba(52,199,122,.18);transform:rotate(18deg)}
  .shape-b{bottom:-170px;left:-120px;width:360px;height:360px;border:1.5px solid rgba(238,108,77,.16);border-radius:30px;transform:rotate(-12deg)}
  .hero h1{font-size:clamp(42px,5.4vw,72px);color:var(--canvas);max-width:760px}
  .hero .sub{font-size:19px;line-height:1.6;color:rgba(234,243,236,.82);max-width:540px;margin:26px 0 0}
  .hero .tagline{font-family:'Bricolage Grotesque',sans-serif;font-weight:700;font-size:21px;letter-spacing:-0.01em;color:var(--spring);margin:24px 0 0}
  .hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:38px}
  .pills{display:flex;flex-wrap:wrap;gap:9px;margin-top:46px}
  .pills span{border:1px solid rgba(234,243,236,.28);color:#EAF3EC;border-radius:999px;padding:8px 16px;font-size:13.5px;font-weight:500}

  .section{max-width:1060px;margin:0 auto;padding:84px 32px}
  .section h2{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:clamp(28px,3.4vw,40px);letter-spacing:-0.02em;line-height:1.06;margin:0 0 14px}
  .section .lead{font-size:17px;line-height:1.6;color:var(--body);max-width:600px;margin:0}

  .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:44px}
  .step{background:#fff;border:1px solid var(--border);border-radius:24px;padding:30px 28px}
  .step .num{font-family:'Space Mono',monospace;font-size:12.5px;letter-spacing:.15em;color:var(--green);margin:0 0 16px}
  .step h3{font-family:'Bricolage Grotesque',sans-serif;font-weight:700;font-size:20px;letter-spacing:-0.01em;margin:0 0 10px}
  .step p{font-size:15px;line-height:1.6;color:var(--body);margin:0}

  .trust{background:var(--sand);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
  .trust-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
  .trust-list{margin:26px 0 0;padding:0;list-style:none}
  .trust-list li{display:flex;gap:14px;align-items:flex-start;font-size:15.5px;line-height:1.55;color:var(--body);margin-bottom:18px}
  .tick{width:26px;height:26px;border-radius:9px;background:#E7F7EE;display:flex;align-items:center;justify-content:center;flex:none;margin-top:1px}
  .campus-card{background:var(--forest);border-radius:28px;padding:40px 38px;color:#EAF3EC;position:relative;overflow:hidden}
  .campus-card .shape{top:-90px;right:-70px;width:240px;height:240px;border:1.5px solid rgba(52,199,122,.2);transform:rotate(16deg)}
  .campus-card h3{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:26px;letter-spacing:-0.02em;margin:0 0 12px;color:var(--canvas)}
  .campus-card p{font-size:15.5px;line-height:1.65;color:rgba(234,243,236,.82);margin:0}
  .campus-card .badge-uni{
    display:inline-flex;align-items:center;gap:8px;margin-top:22px;border:1px solid rgba(234,243,236,.3);
    border-radius:999px;padding:8px 16px;font-size:13px;font-weight:600;
  }

  .modes{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:40px}
  .mode{border:1px solid var(--border);background:#fff;border-radius:20px;padding:24px 22px}
  .mode .m-ic{width:42px;height:42px;border-radius:13px;display:flex;align-items:center;justify-content:center;margin-bottom:14px}
  .mode h4{font-family:'Bricolage Grotesque',sans-serif;font-weight:700;font-size:17px;margin:0 0 7px}
  .mode p{font-size:13.5px;line-height:1.55;color:var(--body);margin:0}

  .cta-band{background:var(--forest);position:relative;overflow:hidden}
  .cta-band .section{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;padding-top:64px;padding-bottom:64px}
  .cta-band h2{color:var(--canvas);margin:0}
  footer{padding:34px 32px;display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:13.5px;flex-wrap:wrap;gap:12px}

  /* ---------- Auth & profile ---------- */
  .auth-wrap{min-height:calc(100vh - 73px);display:grid;grid-template-columns:1fr 1.1fr}
  .auth-panel{
    position:relative;overflow:hidden;background:var(--forest);color:#EAF3EC;
    padding:56px;display:flex;flex-direction:column;justify-content:center;
  }
  .auth-panel h1{font-size:clamp(34px,3.8vw,52px);color:var(--canvas);max-width:420px}
  .auth-panel .sub{font-size:17px;line-height:1.6;color:rgba(234,243,236,.82);max-width:400px;margin:22px 0 0}
  .auth-side{display:flex;align-items:center;justify-content:center;padding:56px 40px}
  .auth-card{width:100%;max-width:540px;padding:44px 46px 40px}
  .auth-card h2{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:30px;letter-spacing:-0.02em;line-height:1.06;margin:0 0 10px}
  .auth-card .lead{font-size:15.5px;line-height:1.55;color:var(--body);margin:0 0 30px}
  .auth-toggle{font-size:14px;color:var(--body);text-align:center;margin:20px 0 0}
  .auth-toggle button{background:none;border:none;color:var(--green);font-weight:700;cursor:pointer;font-size:14px;padding:0}
  .auth-toggle button:hover{text-decoration:underline}

  .avatar-picker{display:flex;gap:10px;flex-wrap:wrap}
  .swatch{
    width:44px;height:44px;border-radius:50%;cursor:pointer;border:3px solid transparent;
    display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:15px;
    transition:transform .1s;
  }
  .swatch:hover{transform:scale(1.08)}
  .swatch.selected{border-color:var(--ink)}
  .interest-pills{display:flex;flex-wrap:wrap;gap:9px}
  .ipill{
    border:1.5px solid var(--border);background:#fff;color:var(--body);border-radius:999px;
    padding:9px 17px;font-size:13.5px;font-weight:600;cursor:pointer;transition:all .12s;
  }
  .ipill.on{background:var(--forest);border-color:var(--forest);color:var(--canvas)}

  /* ---------- Marketplace ---------- */
  .market{max-width:1120px;margin:0 auto;padding:44px 32px 90px}
  .market-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:30px}
  .market-head h1{font-size:clamp(30px,3.6vw,44px)}
  .market-head .campus-line{font-size:15px;color:var(--body);margin:10px 0 0}
  .filter-row{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:28px}
  .fchip{
    border:1.5px solid var(--border);background:#fff;color:var(--body);border-radius:999px;
    padding:8px 16px;font-size:13.5px;font-weight:600;cursor:pointer;
  }
  .fchip.on{background:var(--forest);border-color:var(--forest);color:var(--canvas)}
  .search-input{max-width:320px;flex:1}
  .search-input input{padding:10px 16px;border-radius:999px;font-size:14px}

  .grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px}
  .listing{
    background:#fff;border:1px solid var(--border);border-radius:20px;overflow:hidden;cursor:pointer;
    transition:transform .12s, box-shadow .12s;display:flex;flex-direction:column;
  }
  .listing:hover{transform:translateY(-3px);box-shadow:0 10px 26px rgba(14,58,40,.09)}
  .thumb{aspect-ratio:4/3;background:var(--sand);overflow:hidden;position:relative}
  .thumb img{width:100%;height:100%;object-fit:cover}
  .fav-btn{
    position:absolute;top:10px;right:10px;width:34px;height:34px;border-radius:50%;border:none;
    background:rgba(255,255,255,.93);color:var(--clay);font-size:17px;cursor:pointer;
    display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px rgba(14,58,40,.18);
    transition:transform .12s, background .12s;line-height:1;
  }
  .fav-btn:hover{transform:scale(1.12)}
  .fav-btn.on{background:var(--clay);color:#fff}
  .l-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:6px;flex:1}
  .l-title{font-weight:700;font-size:15.5px;line-height:1.3}
  .l-meta{font-size:12.5px;color:var(--muted)}
  .l-price-row{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:8px}
  .l-price{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:18px;color:var(--green)}
  .l-cat{font-family:'Space Mono',monospace;font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
  .mine-tag{
    font-size:11px;font-weight:700;color:var(--forest);background:#E7F7EE;border-radius:999px;padding:3px 10px;
  }
  .sold-tag{font-size:11px;font-weight:700;color:#fff;background:var(--clay);border-radius:999px;padding:3px 10px}
  .empty{
    border:1.5px dashed var(--border);border-radius:24px;padding:56px 30px;text-align:center;color:var(--muted);
    font-size:15px;line-height:1.6;
  }
  .empty .big{font-family:'Bricolage Grotesque',sans-serif;font-weight:700;font-size:19px;color:var(--body);display:block;margin-bottom:6px}

  /* ---------- Sell form ---------- */
  .sell-wrap{max-width:640px;margin:0 auto;padding:44px 32px 90px}
  .sell-card{padding:40px 42px 36px}
  .photo-drop{
    border:1.5px dashed var(--border);border-radius:16px;background:var(--canvas);
    padding:26px;text-align:center;cursor:pointer;transition:border-color .15s;
  }
  .photo-drop:hover{border-color:var(--green)}
  .photo-drop p{margin:10px 0 0;font-size:14px;color:var(--body);font-weight:600}
  .photo-drop .sub{font-weight:500;color:var(--muted);font-size:12.5px;margin-top:4px}
  .photo-preview{position:relative;border-radius:16px;overflow:hidden;border:1.5px solid var(--border)}
  .photo-preview img{width:100%;max-height:280px;object-fit:cover}
  .photo-preview button{
    position:absolute;top:10px;right:10px;background:rgba(22,35,27,.75);color:#fff;border:none;
    border-radius:999px;padding:7px 14px;font-size:12.5px;font-weight:700;cursor:pointer;
  }
  .row-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}

  /* ---------- Modals ---------- */
  .overlay{
    display:none;position:fixed;inset:0;background:rgba(14,29,21,.55);z-index:60;
    align-items:center;justify-content:center;padding:24px;
  }
  .overlay.open{display:flex}
  .modal{
    width:100%;max-width:640px;max-height:88vh;overflow-y:auto;background:#fff;border-radius:24px;
    padding:34px 36px 32px;position:relative;
  }
  .modal .close-x{
    position:absolute;top:18px;right:18px;background:var(--sand);border:none;border-radius:999px;
    width:34px;height:34px;font-size:16px;cursor:pointer;color:var(--body);font-weight:700;
  }
  .modal .close-x:hover{background:#EDE6D6}
  .detail-photo{border-radius:18px;overflow:hidden;border:1px solid var(--border);margin-bottom:22px}
  .detail-photo img{width:100%;max-height:320px;object-fit:cover}
  .detail-title{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:26px;letter-spacing:-0.02em;margin:0 0 6px}
  .detail-price{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:22px;color:var(--green);margin:0 0 16px}
  .seller-row{display:flex;align-items:center;gap:11px;padding:14px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);margin-bottom:18px}
  .seller-row .who{font-size:14px}
  .seller-row .who b{display:block;font-size:14.5px}
  .seller-row .who span{color:var(--muted);font-size:12.5px}
  .detail-desc{font-size:15px;line-height:1.6;color:var(--body);margin:0 0 24px}
  .detail-actions{display:flex;gap:12px;flex-wrap:wrap}
  .detail-actions .btn{flex:1;min-width:160px}

  .barter-pick{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px;margin:16px 0 4px}
  .bp-item{
    border:2px solid var(--border);border-radius:14px;overflow:hidden;cursor:pointer;background:#fff;padding:0;text-align:left;
  }
  .bp-item.selected{border-color:var(--green);box-shadow:0 0 0 3px rgba(21,114,78,.14)}
  .bp-item .bp-thumb{aspect-ratio:4/3;background:var(--sand)}
  .bp-item .bp-thumb img{width:100%;height:100%;object-fit:cover}
  .bp-item .bp-name{font-size:12.5px;font-weight:700;padding:8px 10px;display:block}
  .bp-new{
    border:2px dashed var(--border);border-radius:14px;display:flex;flex-direction:column;align-items:center;justify-content:center;
    gap:8px;cursor:pointer;background:var(--canvas);color:var(--body);font-weight:700;font-size:13px;min-height:120px;
  }
  .bp-new:hover{border-color:var(--green);color:var(--green)}

  /* ---------- Requests ---------- */
  .req-tabs{display:flex;gap:8px;margin-bottom:24px}
  .req-card{padding:22px 24px;margin-bottom:14px;display:flex;gap:18px;align-items:flex-start;flex-wrap:wrap}
  .req-thumb{width:88px;height:66px;border-radius:12px;overflow:hidden;background:var(--sand);flex:none}
  .req-thumb img{width:100%;height:100%;object-fit:cover}
  .req-main{flex:1;min-width:220px}
  .req-main h4{margin:0 0 4px;font-size:15.5px}
  .req-main p{margin:0;font-size:13.5px;color:var(--body);line-height:1.5}
  .req-status{font-family:'Space Mono',monospace;font-size:11px;letter-spacing:.1em;text-transform:uppercase;border-radius:999px;padding:5px 12px;font-weight:700}
  .st-pending{background:var(--sand);color:var(--body)}
  .st-accepted{background:#E7F7EE;color:var(--green)}
  .st-declined{background:#FDEAE4;color:var(--clay)}
  .req-actions{display:flex;gap:8px;margin-top:12px}
  .barter-offer{
    display:flex;align-items:center;gap:10px;background:var(--canvas);border:1px solid var(--border);
    border-radius:12px;padding:8px 12px;margin-top:10px;font-size:13px;font-weight:600;
  }
  .barter-offer .bo-thumb{width:44px;height:34px;border-radius:8px;overflow:hidden;background:var(--sand);flex:none}
  .barter-offer .bo-thumb img{width:100%;height:100%;object-fit:cover}
  .swap-ic{color:var(--clay);font-weight:800}

  .toast{
    position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(20px);opacity:0;
    background:var(--forest);color:var(--canvas);font-weight:600;font-size:14.5px;
    border-radius:999px;padding:13px 26px;z-index:80;pointer-events:none;transition:all .25s;
  }
  .toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

  /* ---------- Loading screen ---------- */
  .loader{
    position:fixed;inset:0;z-index:100;background:var(--forest);
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:22px;
    opacity:0;pointer-events:none;transition:opacity .28s ease;
  }
  .loader.on{opacity:1;pointer-events:all}
  .loader .shape{border-radius:36px}
  .loader .shape-a{top:-140px;right:-100px;width:400px;height:400px;border:1.5px solid rgba(52,199,122,.16);transform:rotate(18deg)}
  .loader .shape-b{bottom:-160px;left:-110px;width:340px;height:340px;border:1.5px solid rgba(238,108,77,.14);transform:rotate(-12deg)}
  .loader-badge{width:78px;height:78px;border-radius:22px;background:var(--spring);display:flex;align-items:center;justify-content:center}
  .loader-text{font-family:'Space Mono',monospace;font-size:12.5px;letter-spacing:.22em;text-transform:uppercase;color:rgba(234,243,236,.75);margin:0}
  .loader-text::after{content:'…';display:inline-block;width:1.4em;text-align:left;animation:dots 1.1s steps(4) infinite}
  .loader-sprout .stem{stroke-dasharray:22;stroke-dashoffset:22}
  .loader-sprout .leaf{transform-box:fill-box;transform-origin:50% 100%;transform:scale(0)}
  .loader.on .stem{animation:stemDraw .45s ease forwards}
  .loader.on .leaf-l{animation:leafPop .4s cubic-bezier(.3,1.4,.5,1) .3s forwards}
  .loader.on .leaf-r{animation:leafPop .4s cubic-bezier(.3,1.4,.5,1) .42s forwards}
  @keyframes stemDraw{to{stroke-dashoffset:0}}
  @keyframes leafPop{to{transform:scale(1)}}
  @keyframes dots{0%{content:''}25%{content:'.'}50%{content:'..'}75%{content:'…'}}

  /* ---------- View & element animations ---------- */
  .view.active{animation:viewIn .42s cubic-bezier(.2,.7,.3,1)}
  @keyframes viewIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
  .fu{opacity:0;animation:fadeUp .65s cubic-bezier(.2,.7,.3,1) forwards}
  .d1{animation-delay:.08s}.d2{animation-delay:.18s}.d3{animation-delay:.3s}
  .d4{animation-delay:.42s}.d5{animation-delay:.54s}.d6{animation-delay:.68s}
  @keyframes fadeUp{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}
  .listing{animation:cardIn .5s cubic-bezier(.2,.7,.3,1) both}
  @keyframes cardIn{from{opacity:0;transform:translateY(16px) scale(.985)}to{opacity:1;transform:translateY(0) scale(1)}}
  .req-card{animation:cardIn .45s cubic-bezier(.2,.7,.3,1) both}
  .overlay.open .modal{animation:popIn .3s cubic-bezier(.25,1.1,.35,1.05)}
  @keyframes popIn{from{opacity:0;transform:translateY(18px) scale(.965)}to{opacity:1;transform:translateY(0) scale(1)}}
  .step,.mode{transition:transform .16s ease, box-shadow .16s ease}
  .step:hover,.mode:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(14,58,40,.08)}
  .logo-badge{transition:transform .18s cubic-bezier(.3,1.4,.5,1)}
  .logo-row:hover .logo-badge{transform:rotate(-8deg) scale(1.06)}

  /* ---------- Loading skeletons ---------- */
  .skel{border:1px solid var(--border);border-radius:20px;overflow:hidden;background:#fff}
  .shimmer{
    background:linear-gradient(90deg, var(--sand) 25%, #EFE8D8 45%, var(--sand) 65%);
    background-size:200% 100%;animation:shimmer 1.3s linear infinite;
  }
  @keyframes shimmer{to{background-position:-200% 0}}
  .skel .s-thumb{aspect-ratio:4/3}
  .skel .s-line{height:12px;border-radius:6px;margin:14px 16px 0}
  .skel .s-line.short{width:45%;margin-bottom:18px}
  .skel-row{display:flex;gap:18px;align-items:center;padding:22px 24px;margin-bottom:14px}
  .skel-row .s-thumb{width:88px;height:66px;border-radius:12px;flex:none;aspect-ratio:auto}
  .skel-row .s-lines{flex:1}
  .skel-row .s-line{margin:0 0 10px;height:12px;border-radius:6px}
  .skel-row .s-line.short{width:40%;margin-bottom:0}

  /* ---------- Reputation ---------- */
  .rep-tag{font-size:11.5px;font-weight:700;border-radius:999px;padding:4px 11px;white-space:nowrap}
  .rep-new{background:var(--sand);color:var(--muted)}
  .rep-good{background:#E7F7EE;color:var(--green)}
  .rep-flag{background:#FDEAE4;color:var(--clay)}

  /* ---------- Meetup picker ---------- */
  .loc-grid{display:flex;flex-wrap:wrap;gap:9px;margin:16px 0 6px}
  .loc-pill{
    border:1.5px solid var(--border);background:#fff;border-radius:999px;padding:10px 17px;
    font-size:13.5px;font-weight:600;color:var(--body);cursor:pointer;transition:all .12s;
  }
  .loc-pill:hover{border-color:var(--green)}
  .loc-pill.on{background:var(--forest);border-color:var(--forest);color:var(--canvas)}

  /* ---------- Trade chat ---------- */
  .chat-box{display:flex;flex-direction:column;height:min(430px,58vh)}
  .meet-banner{
    display:flex;align-items:center;gap:9px;background:var(--sand);border:1px solid var(--border);
    border-radius:12px;padding:10px 14px;font-size:13.5px;font-weight:600;margin-bottom:12px;
  }
  .chat-msgs{flex:1;overflow-y:auto;padding:6px 2px;display:flex;flex-direction:column;background:var(--canvas);border:1px solid var(--border);border-radius:14px;padding:14px}
  .msg{max-width:78%;padding:10px 14px;border-radius:16px;font-size:14px;line-height:1.45;margin-bottom:8px;overflow-wrap:break-word}
  .msg.me{background:var(--green);color:#fff;margin-left:auto;border-bottom-right-radius:5px}
  .msg.them{background:#fff;border:1px solid var(--border);color:var(--ink);margin-right:auto;border-bottom-left-radius:5px}
  .msg .m-time{display:block;font-size:10.5px;opacity:.6;margin-top:3px}
  .chat-input-row{display:flex;gap:10px;margin-top:12px}
  .chat-input-row input{flex:1}

  /* ---------- Ratings & wishlist matches ---------- */
  .rate-row{display:flex;gap:8px;margin-top:12px;align-items:center;flex-wrap:wrap}
  .rate-btn{border:1.5px solid var(--border);background:#fff;border-radius:999px;padding:8px 15px;font-size:13px;font-weight:700;cursor:pointer;transition:all .12s}
  .rate-btn:hover{border-color:var(--green);transform:translateY(-1px)}
  .match-card{display:flex;gap:12px;align-items:center;border:1px solid var(--border);border-radius:14px;padding:13px 16px;margin-bottom:10px}

  /* ============================================================
     Responsive — tablets
     ============================================================ */
  @media (max-width: 920px){
    .nav{padding:12px 18px;flex-wrap:wrap;gap:8px}
    .nav-links{gap:2px;flex-wrap:wrap}
    .nav-tab{padding:8px 11px;font-size:13.5px}
    .hero{padding:64px 24px 76px}
    .section{padding:60px 24px}
    .steps,.trust-grid{grid-template-columns:1fr;gap:20px}
    .modes{grid-template-columns:1fr 1fr}
    .auth-wrap{grid-template-columns:1fr}
    .auth-panel{padding:44px 28px}
    .auth-card{padding:32px 26px}
    .row-2{grid-template-columns:1fr}
    .sell-card{padding:30px 24px}
    .modal{padding:28px 22px}
  }

  /* ============================================================
     Responsive — phones
     ============================================================ */
  @media (max-width: 720px){
    *{-webkit-tap-highlight-color:transparent}

    /* Nav: logo on top; tabs become one swipeable row instead of a
       wrapped pile. Dots and the profile chip ride along. */
    .nav{padding:10px 14px 0;row-gap:0}
    .nav .logo-badge{width:34px;height:34px;border-radius:10px}
    .nav .wordmark{font-size:19px}
    .nav-links{
      order:3;width:100%;flex-wrap:nowrap;overflow-x:auto;gap:4px;
      padding:8px 2px 10px;-webkit-overflow-scrolling:touch;
      scrollbar-width:none;
    }
    .nav-links::-webkit-scrollbar{display:none}
    .nav-tab{flex:none;padding:9px 13px;font-size:14px}
    .avatar-chip{flex:none}
    #navOut{order:0;width:auto;padding:0 0 10px}

    /* Market: tighter frame, swipeable category chips, full-width search */
    .market{padding:26px 16px 80px}
    .market-head{margin-bottom:20px}
    .market-head .campus-line{font-size:14px}
    .market-actions{width:100%}
    .market-actions .btn{width:100%}
    .filter-row{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px;-webkit-overflow-scrolling:touch;scrollbar-width:none;margin-bottom:18px}
    .filter-row::-webkit-scrollbar{display:none}
    .fchip{flex:none}
    .search-input{max-width:none}

    /* Listing grid: two cards across, compact bodies */
    .grid{grid-template-columns:repeat(2,1fr);gap:12px}
    .l-body{padding:11px 12px 13px;gap:4px}
    .l-title{font-size:14px}
    .l-price{font-size:16px}
    .fav-btn{width:38px;height:38px}

    /* Forms: 16px inputs stop iOS zoom-on-focus; sell card breathes */
    .field input,.field select,.field textarea,.search-input input,.chat-input-row input{font-size:16px}
    .sell-wrap{padding:26px 16px 80px}
    .sell-card{padding:24px 18px}

    /* Modals become bottom sheets */
    .overlay{padding:0;align-items:flex-end}
    .modal{
      max-width:none;max-height:92vh;border-radius:22px 22px 0 0;
      padding:26px 20px calc(26px + env(safe-area-inset-bottom));
    }
    .detail-photo img{max-height:240px}
    .detail-title{font-size:22px}
    .detail-actions{flex-direction:column}
    .detail-actions .btn{min-width:0;width:100%}

    /* Requests & chats: pinned status chip, tighter cards */
    .req-card{padding:16px;gap:12px;position:relative}
    .req-card > .req-status{position:absolute;top:14px;right:14px}
    .req-main{min-width:0;padding-right:56px}
    .req-thumb{width:72px;height:56px}
    .chat-box{height:min(520px,66vh)}

    /* Landing & footer */
    .hero{padding:52px 20px 62px}
    .hero .sub{font-size:16.5px}
    .section{padding:48px 20px}
    .modes{grid-template-columns:1fr}
    footer{
      flex-direction:column;text-align:center;gap:6px;
      padding:26px 20px calc(26px + env(safe-area-inset-bottom));
    }
    .toast{
      bottom:calc(18px + env(safe-area-inset-bottom));
      max-width:calc(100vw - 32px);text-align:center;font-size:14px;
    }
  }

  /* Small phones: keep two columns but trim type */
  @media (max-width: 380px){
    .grid{gap:9px}
    .l-body{padding:9px 10px 11px}
    .hero h1{font-size:36px}
    .nav-tab{padding:8px 10px;font-size:13px}
  }
  @media (prefers-reduced-motion: reduce){
    *{transition:none!important;animation:none!important}
    html{scroll-behavior:auto}
    .fu,.listing,.req-card{opacity:1}
    .loader-sprout .leaf{transform:scale(1)}
    .loader-sprout .stem{stroke-dashoffset:0}
  }