:root {
  --bg-from:#EFF6FF; --bg-to:#E0E7FF;
  --white:#FFFFFF;
  --gray-50:#F9FAFB; --gray-100:#F3F4F6; --gray-200:#E5E7EB; --gray-300:#D1D5DB;
  --gray-400:#9CA3AF; --gray-500:#6B7280; --gray-600:#4B5563; --gray-700:#374151; --gray-800:#1F2937;
  --indigo-50:#EEF2FF; --indigo-100:#E0E7FF; --indigo-200:#C7D2FE;
  --indigo-500:#6366F1; --indigo-600:#4F46E5; --indigo-700:#4338CA;
  --green-50:#F0FDF4; --green-100:#DCFCE7; --green-200:#BBF7D0;
  --green-600:#16A34A; --green-700:#15803D;
  --yellow-50:#FEFCE8; --yellow-100:#FEF9C3; --yellow-200:#FEF08A; --yellow-600:#CA8A04; --yellow-700:#A16207;
  --orange-50:#FFF7ED; --orange-200:#FED7AA; --orange-600:#EA580C;
  --purple-50:#FAF5FF; --purple-100:#F3E8FF; --purple-200:#E9D5FF;
  --purple-600:#9333EA; --purple-700:#7E22CE;
  --red-50:#FEF2F2; --red-100:#FEE2E2; --red-200:#FECACA;
  --red-500:#EF4444; --red-600:#DC2626; --red-700:#B91C1C;
  --blue-50:#EFF6FF; --blue-100:#DBEAFE; --blue-600:#2563EB;
  --shadow:0 4px 6px -1px rgba(0,0,0,.07),0 2px 4px -2px rgba(0,0,0,.07);
  --shadow-lg:0 10px 15px -3px rgba(0,0,0,.10),0 4px 6px -4px rgba(0,0,0,.10);
  --radius:8px; --radius-xl:12px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
body{font-family:var(--font);font-size:.9375rem;background:linear-gradient(to bottom right,var(--bg-from),var(--bg-to));background-attachment:fixed;color:var(--gray-800);line-height:1.6;min-height:100vh;}
input,select,button,textarea{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:none;background:none;}

/* HEADER */
.app-header{background:linear-gradient(135deg,#312e81,#4F46E5);padding:1.1rem 2rem;display:flex;align-items:center;gap:1rem;box-shadow:0 4px 12px rgba(79,70,229,.3);position:sticky;top:0;z-index:50;}
.logo-mark{width:42px;height:42px;background:rgba(255,255,255,.15);border:2px solid rgba(255,255,255,.25);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;font-size:.95rem;font-weight:800;color:white;flex-shrink:0;letter-spacing:-.5px;}
.app-title{font-size:1.4rem;font-weight:700;color:#fff;line-height:1.1;}
.app-sub{font-size:.7rem;color:rgba(255,255,255,.55);letter-spacing:.04em;}

/* LAYOUT */
.app-main{max-width:1280px;margin:0 auto;padding:1.5rem;display:grid;grid-template-columns:1fr 520px;gap:1.5rem;align-items:start;}
.left-col,.right-col{display:flex;flex-direction:column;gap:1.25rem;}

/* CARDS */
.card{background:var(--white);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);padding:1.5rem;margin:5px 0;}
.card-title{font-size:1.05rem;font-weight:700;color:var(--gray-800);display:flex;align-items:center;gap:.5rem;margin-bottom:1.25rem;}
.card-title svg{color:var(--indigo-600);flex-shrink:0;}

/* FIELDS */
.fields-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(185px,1fr));gap:1rem;}
.field-group{display:flex;flex-direction:column;gap:.4rem;}
.field-label{font-size:.8rem;font-weight:600;color:var(--gray-700);}
.field-hint{font-size:.72rem;color:var(--gray-400);}
.field-select{width:100%;padding:.55rem .75rem;border:2px solid var(--gray-300);border-radius:var(--radius);outline:none;background:var(--white);font-size:.875rem;color:var(--gray-800);transition:border-color .18s;}
.field-select:focus{border-color:var(--indigo-500);}
.field-input-text{width:100%;padding:.55rem .75rem;border:2px solid var(--gray-300);border-radius:var(--radius);outline:none;font-size:.875rem;color:var(--gray-800);transition:border-color .18s,box-shadow .18s;background:var(--white);}
.field-input-text:focus{border-color:var(--indigo-500);box-shadow:0 0 0 3px rgba(99,102,241,.12);}
.field-input-text::placeholder{color:var(--gray-400);font-weight:400;}
.input-chf{display:flex;align-items:stretch;border:2px solid var(--gray-300);border-radius:var(--radius);overflow:hidden;transition:border-color .18s;}
.input-chf:focus-within{border-color:var(--indigo-500);box-shadow:0 0 0 3px rgba(99,102,241,.15);}
.chf-prefix{padding:0 .65rem;background:var(--gray-100);border-right:2px solid var(--gray-300);font-size:.72rem;font-weight:700;color:var(--gray-500);display:flex;align-items:center;letter-spacing:.06em;flex-shrink:0;}
.field-input{flex:1;padding:.55rem .75rem;border:none;outline:none;background:transparent;font-size:1rem;font-weight:600;color:var(--gray-800);min-width:0;}

/* TOGGLE BUTTONS */
.btn-group{display:flex;gap:.4rem;flex-wrap:wrap;}
.toggle-btn{padding:.35rem .75rem;border-radius:6px;border:2px solid var(--gray-300);font-size:.8rem;font-weight:600;color:var(--gray-600);background:var(--white);transition:all .15s;}
.toggle-btn:hover{border-color:var(--indigo-500);color:var(--indigo-600);}
.toggle-btn.active{background:var(--indigo-600);border-color:var(--indigo-600);color:white;}

/* DEMAND BADGE */
.demand-badge{display:inline-flex;align-items:center;padding:2px 10px;border-radius:12px;font-size:.68rem;font-weight:700;letter-spacing:.04em;}
.demand-tres-forte,.demand-tr\E8s-forte{background:var(--green-100);color:var(--green-700);border:1px solid var(--green-200);}
.demand-forte{background:var(--indigo-100);color:var(--indigo-700);border:1px solid var(--indigo-200);}
.demand-moyenne{background:var(--orange-50);color:var(--orange-600);border:1px solid var(--orange-200);}

/* CATEGORY SEARCH */
.cat-search-wrap{position:relative;margin-bottom:.75rem;}
.cat-search-input{width:100%;padding:.55rem .75rem .55rem 2.2rem;border:2px solid var(--gray-300);border-radius:var(--radius);outline:none;font-size:.875rem;color:var(--gray-800);transition:border-color .18s,box-shadow .18s;background:var(--white);}
.cat-search-input:focus{border-color:var(--indigo-500);box-shadow:0 0 0 3px rgba(99,102,241,.12);}
.cat-search-input::placeholder{color:var(--gray-400);font-weight:400;}
.cat-search-icon{position:absolute;left:.7rem;top:50%;transform:translateY(-50%);color:var(--gray-400);font-size:.9rem;pointer-events:none;}
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:.4rem;max-height:160px;overflow-y:auto;padding-right:.25rem;}
.cat-grid::-webkit-scrollbar{width:4px;}
.cat-grid::-webkit-scrollbar-thumb{background:var(--gray-300);border-radius:4px;}
.cat-item{padding:.5rem .7rem;border:2px solid var(--gray-200);border-radius:var(--radius);font-size:.8rem;color:var(--gray-700);background:var(--white);cursor:pointer;transition:all .15s;text-align:left;display:flex;align-items:center;gap:.4rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.cat-item:hover{border-color:var(--indigo-400);background:var(--indigo-50);color:var(--indigo-700);}
.cat-item.active{border-color:var(--indigo-600);background:var(--indigo-600);color:white;}
.cat-item-emoji{font-size:1rem;flex-shrink:0;}

/* CITY AUTOCOMPLETE */
.city-wrap{position:relative;}
.city-dropdown{position:absolute;top:100%;left:0;right:0;background:var(--white);border:2px solid var(--indigo-200);border-radius:var(--radius);margin-top:4px;z-index:100;max-height:220px;overflow-y:auto;box-shadow:var(--shadow-lg);}
.city-option{padding:.5rem .75rem;cursor:pointer;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--gray-100);font-size:.875rem;}
.city-option:hover{background:var(--indigo-50);}
.city-option:last-child{border-bottom:none;}
.city-canton{font-size:.7rem;color:var(--gray-400);background:var(--gray-100);padding:1px 6px;border-radius:4px;}

/* POPULATION INFO BOX */
.pop-info{background:var(--indigo-50);border:1.5px solid var(--indigo-200);border-radius:var(--radius);padding:.7rem 1rem;margin-top:.75rem;}
.pop-row{display:flex;justify-content:space-between;align-items:center;}
.pop-row+.pop-row{margin-top:.3rem;padding-top:.3rem;border-top:1px solid var(--indigo-100);}
.pop-label{font-size:.78rem;color:var(--gray-500);}
.pop-val{font-size:.85rem;font-weight:700;color:var(--indigo-700);}

/* RESULT CARD */
.result-card{position:static;}

/* CLIENT HEADER in result */
.client-header{background:linear-gradient(135deg,var(--indigo-50),var(--purple-50));border:1.5px solid var(--indigo-200);border-radius:var(--radius);padding:.6rem .9rem;margin-bottom:.6rem;display:flex;align-items:center;gap:.75rem;}
.client-header-icon{width:36px;height:36px;background:linear-gradient(135deg,var(--indigo-600),var(--purple-600));border-radius:8px;display:flex;align-items:center;justify-content:center;color:white;font-size:1rem;flex-shrink:0;}
.client-header-name{font-size:1rem;font-weight:800;color:var(--indigo-700);line-height:1.2;}
.client-header-sub{font-size:.72rem;color:var(--gray-400);margin-top:.1rem;}
.client-header-empty{font-size:.85rem;color:var(--gray-400);font-style:italic;}

/* RESULT HEADER */
.result-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem;}
.result-title{font-size:1.05rem;font-weight:700;color:var(--gray-800);}

/* RESULTS — top row (yellow + orange) + green below */
.results-trio{display:grid;grid-template-columns:1fr 1fr;gap:.4rem;margin-bottom:.5rem;}
.trio-card{background:var(--white);border:1.5px solid var(--gray-200);border-radius:var(--radius);padding:.5rem .6rem;text-align:center;border-top:3px solid var(--gray-300);transition:box-shadow .15s;}
.trio-card:hover{box-shadow:var(--shadow);}
.trio-icon{font-size:1rem;margin-bottom:.2rem;}
.trio-value{font-size:1rem;font-weight:800;line-height:1.1;}
.trio-label{font-size:.62rem;color:var(--gray-500);margin-top:.15rem;}
.trio-sub{font-size:.56rem;color:var(--gray-400);margin-top:.1rem;}
.trio-yellow{border-top-color:var(--yellow-600);background:var(--yellow-50);}
.trio-yellow .trio-value{color:var(--yellow-700);}
.trio-orange{border-top-color:var(--orange-600);background:var(--orange-50);}
.trio-orange .trio-value{color:var(--orange-600);}
.trio-green{grid-column:1/-1;border-top-color:var(--green-600);background:var(--green-50);padding:.6rem;}
.trio-green .trio-value{color:var(--green-700);font-size:1.25rem;}
/* ROAS row */
.roas-row{background:linear-gradient(135deg,var(--indigo-50),var(--purple-50));border:1.5px solid var(--indigo-200);border-radius:var(--radius);padding:.5rem .75rem;margin-bottom:.5rem;display:flex;align-items:center;justify-content:space-between;}
.roas-label{font-size:.72rem;font-weight:600;color:var(--gray-600);display:flex;align-items:center;gap:.3rem;}
.roas-value{font-size:1.1rem;font-weight:800;color:var(--indigo-700);}
/* Expertise note */
.expertise-note{font-size:.68rem;color:var(--gray-500);line-height:1.5;padding:.5rem .7rem;background:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius);margin-bottom:.5rem;font-style:italic;}
.result-disclaimer{font-size:.72rem;color:var(--gray-400);line-height:1.6;padding:.7rem .9rem;background:var(--gray-50);border-radius:var(--radius);border:1px solid var(--gray-200);margin-bottom:.75rem;}

/* ACTIONS */
.result-actions{display:flex;gap:.5rem;margin-bottom:.75rem;}
.btn-ai{flex:1;padding:.7rem 1rem;background:linear-gradient(135deg,var(--indigo-600),var(--purple-600));color:white;border-radius:var(--radius);font-size:.825rem;font-weight:700;display:flex;align-items:center;justify-content:center;gap:.4rem;box-shadow:0 4px 12px rgba(79,70,229,.25);transition:all .2s;border:none;}
.btn-ai:hover{background:linear-gradient(135deg,#4338ca,#7e22ce);transform:translateY(-1px);}
.btn-ai:disabled{opacity:.6;transform:none;cursor:not-allowed;}
.btn-pdf{padding:.7rem 1rem;background:var(--white);color:var(--gray-700);border-radius:var(--radius);font-size:.825rem;font-weight:700;display:flex;align-items:center;justify-content:center;gap:.4rem;border:2px solid var(--gray-300);transition:all .2s;white-space:nowrap;}
.btn-pdf:hover{border-color:var(--indigo-500);color:var(--indigo-600);background:var(--indigo-50);}
.btn-save{padding:.7rem 1rem;background:var(--green-50);color:var(--green-700);border-radius:var(--radius);font-size:.825rem;font-weight:700;display:flex;align-items:center;justify-content:center;gap:.4rem;border:2px solid var(--green-200);transition:all .2s;white-space:nowrap;}
.btn-save:hover{background:var(--green-100);border-color:var(--green-600);}
.btn-save:disabled{opacity:.6;cursor:not-allowed;}

/* AI RESULT */
.ai-result{background:var(--green-50);border:1.5px solid var(--green-200);border-radius:var(--radius);padding:1rem;margin-bottom:.75rem;}
.ai-result-title{font-size:.7rem;font-weight:700;color:var(--green-700);text-transform:uppercase;letter-spacing:.07em;margin-bottom:.6rem;}
.ai-result p{font-size:.825rem;color:var(--gray-700);line-height:1.6;margin-bottom:.4rem;}
.ai-result p:last-of-type{margin-bottom:0;}
.btn-reset-ai{font-size:.72rem;color:var(--gray-400);border:1px solid var(--gray-200);border-radius:5px;padding:2px 8px;margin-top:.5rem;transition:all .15s;}
.btn-reset-ai:hover{color:var(--red-600);border-color:var(--red-200);}

/* RULES CARD */
.rules-card{background:linear-gradient(135deg,#312e81,var(--indigo-600));border-radius:var(--radius-xl);padding:1.25rem;display:flex;flex-direction:column;gap:.7rem;box-shadow:0 4px 12px rgba(79,70,229,.25);}
.rules-title{font-size:.72rem;font-weight:700;color:rgba(255,255,255,.9);letter-spacing:.07em;text-transform:uppercase;padding-bottom:.5rem;border-bottom:1px solid rgba(255,255,255,.12);}
.rules-row{display:flex;justify-content:space-between;font-size:.8rem;color:rgba(255,255,255,.65);}
.rules-val{font-weight:700;color:white;}

/* SOURCE NOTE */
.source-note{font-size:.7rem;color:var(--gray-400);line-height:1.6;padding:.7rem .9rem;background:var(--gray-50);border-radius:var(--radius);border:1px solid var(--gray-200);}

/* SAVED SIMULATIONS */
.sims-card{margin-top:.5rem;}
.sims-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;}
.sims-count{font-size:.72rem;color:var(--gray-400);background:var(--gray-100);padding:2px 8px;border-radius:10px;}
.sim-item{background:var(--gray-50);border:1.5px solid var(--gray-200);border-radius:var(--radius);padding:.75rem 1rem;margin-bottom:.5rem;cursor:pointer;transition:all .15s;}
.sim-item:hover{border-color:var(--indigo-500);background:var(--indigo-50);}
.sim-item-head{display:flex;justify-content:space-between;align-items:center;}
.sim-item-name{font-size:.875rem;font-weight:700;color:var(--gray-800);}
.sim-item-date{font-size:.68rem;color:var(--gray-400);}
.sim-item-details{display:flex;gap:.75rem;margin-top:.35rem;flex-wrap:wrap;}
.sim-item-tag{font-size:.7rem;color:var(--gray-500);background:var(--white);border:1px solid var(--gray-200);padding:1px 6px;border-radius:4px;}
.sim-item-roi{font-size:.7rem;font-weight:700;color:var(--green-700);background:var(--green-50);border:1px solid var(--green-200);padding:1px 6px;border-radius:4px;}
.sim-item-actions{display:flex;gap:.3rem;margin-top:.4rem;justify-content:flex-end;}
.btn-sim-load{font-size:.7rem;color:var(--indigo-600);border:1px solid var(--indigo-200);border-radius:5px;padding:2px 8px;background:var(--indigo-50);transition:all .15s;}
.btn-sim-load:hover{background:var(--indigo-100);}
.btn-sim-del{font-size:.7rem;color:var(--gray-400);border:1px solid var(--gray-200);border-radius:5px;padding:2px 8px;background:var(--white);transition:all .15s;}
.btn-sim-del:hover{color:var(--red-600);border-color:var(--red-200);background:var(--red-50);}
.sims-empty{text-align:center;padding:1.5rem;color:var(--gray-400);font-size:.85rem;}

/* LOGIN */
.login-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(to bottom right,var(--bg-from),var(--bg-to));}
.login-box{background:var(--white);border-radius:16px;padding:2.5rem 2rem;box-shadow:0 4px 24px rgba(0,0,0,.10);width:100%;max-width:340px;}
.login-error{display:none;color:var(--red-600);font-size:.82rem;margin-bottom:1rem;padding:.5rem .75rem;background:var(--red-50);border-radius:6px;}

/* LOADING SPINNER */
.loading-wrap{display:flex;align-items:center;justify-content:center;min-height:60vh;}
.spinner{width:40px;height:40px;border:4px solid var(--gray-200);border-top-color:var(--indigo-600);border-radius:50%;animation:spin .7s linear infinite;}
@keyframes spin{to{transform:rotate(360deg)}}

/* TABS NAV */
.tabs-bar{display:flex;gap:.25rem;background:var(--gray-100);border-radius:var(--radius);padding:3px;margin-bottom:1.25rem;}
.tab-btn{flex:1;padding:.45rem .75rem;border-radius:6px;font-size:.8rem;font-weight:600;color:var(--gray-500);background:transparent;transition:all .15s;text-align:center;}
.tab-btn:hover{color:var(--gray-700);}
.tab-btn.active{background:var(--white);color:var(--indigo-600);box-shadow:0 1px 3px rgba(0,0,0,.08);}

/* SAVE SUCCESS */
.save-toast{position:fixed;bottom:2rem;right:2rem;background:var(--green-600);color:white;padding:.75rem 1.25rem;border-radius:var(--radius);font-size:.85rem;font-weight:600;box-shadow:0 4px 12px rgba(22,163,74,.3);z-index:200;animation:slideUp .3s ease-out;}
@keyframes slideUp{from{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}

/* PRINT / PDF */
@media print {
  body{background:white;}
  .app-header{background:#312e81!important;-webkit-print-color-adjust:exact;print-color-adjust:exact;}
  .app-main{grid-template-columns:1fr!important;gap:1rem;}
  .left-col{display:none;}
  .right-col{width:100%;}
  .result-card{position:static!important;box-shadow:none!important;}
  .result-actions,.rules-card,.source-note,.btn-pdf,.btn-ai,.btn-reset-ai,.ai-result,.sims-card,.tabs-bar,.btn-save{display:none!important;}
  .client-header,.trio-card,.roas-row,.expertise-note{-webkit-print-color-adjust:exact;print-color-adjust:exact;}
  .pdf-summary{display:block!important;-webkit-print-color-adjust:exact;print-color-adjust:exact;}
  .pdf-footer{display:block!important;}
}
/* PDF SUMMARY — visible only in print */
.pdf-summary{display:none;margin-top:1rem;padding:1rem;background:var(--gray-50);border:1.5px solid var(--gray-200);border-radius:var(--radius);}
.pdf-summary-title{font-size:.8rem;font-weight:700;color:var(--gray-700);margin-bottom:.6rem;text-transform:uppercase;letter-spacing:.05em;}
.pdf-summary-row{display:flex;justify-content:space-between;font-size:.82rem;color:var(--gray-600);padding:.3rem 0;border-bottom:1px solid var(--gray-200);}
.pdf-summary-row:last-child{border-bottom:none;}
.pdf-summary-row span:last-child{font-weight:700;color:var(--gray-800);}
.pdf-footer{display:none;margin-top:2rem;padding-top:1rem;border-top:1px solid var(--gray-200);font-size:.75rem;color:var(--gray-400);text-align:center;}

/* RESPONSIVE */
@media(max-width:980px){
  .app-main{grid-template-columns:1fr;padding:1rem;}
  .result-card{position:static;}
  .app-header{padding:1rem;}
}
@media(max-width:580px){
  .stats-row{flex-direction:column;}
  .fields-grid{grid-template-columns:1fr;}
  .result-actions{flex-wrap:wrap;}
}