*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:#f8f9fa;color:#212529;min-height:100vh;min-height:100dvh;padding-bottom:env(safe-area-inset-bottom,0)}
.hidden{display:none!important}

/* ═══ LOGIN ═══ */
.screen{min-height:100vh;display:flex;align-items:center;justify-content:center}
.login-card{background:#fff;padding:2.5rem 2rem;border-radius:12px;box-shadow:0 2px 16px rgba(0,0,0,.08);width:100%;max-width:380px;text-align:center}
.login-card h1{font-size:1.6rem;font-weight:600;margin-bottom:.25rem}
.subtitle{color:#6c757d;font-size:.95rem;margin-bottom:1.5rem}
.login-card label{display:block;text-align:left;font-size:.85rem;font-weight:500;color:#495057;margin:.5rem 0 .25rem}
.login-card input{width:100%;padding:.7rem .75rem;border:1px solid #ced4da;border-radius:8px;font-size:1rem;transition:border-color .15s}
.login-card input:focus{outline:none;border-color:#4a90d9;box-shadow:0 0 0 3px rgba(74,144,217,.15)}
.login-card input:disabled{background:#e9ecef;color:#6c757d;cursor:not-allowed}
.login-card button[type=submit]{width:100%;margin-top:1rem;padding:.75rem;background:#212529;color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:500;cursor:pointer;transition:background .15s}
.login-card button[type=submit]:hover{background:#343a40}
.login-card button[type=submit]:disabled{opacity:.6;cursor:not-allowed}
.error{color:#dc3545;font-size:.9rem;margin-top:.75rem}
.forgot{margin-top:1rem;font-size:.85rem}
.forgot a{color:#4a90d9;text-decoration:none}
#recoveryMsg{margin-top:.75rem;padding:.75rem;background:#e8f4fd;border-radius:8px;font-size:.85rem;color:#1a6fb5;line-height:1.5}

/* ═══ APP LAYOUT ═══ */
#appScreen{display:block}
#appScreen header{background:#fff;border-bottom:1px solid #dee2e6;padding:.5rem .75rem;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.35rem}
#appScreen header h1{font-size:1.1rem;font-weight:600}
#appScreen nav{display:flex;gap:.25rem;align-items:center;flex-wrap:wrap}
#appScreen nav button{padding:.3rem .55rem;border:1px solid #dee2e6;border-radius:6px;background:#fff;font-size:.8rem;cursor:pointer;white-space:nowrap}
#appScreen nav button.active{background:#212529;color:#fff;border-color:#212529}
#appScreen nav button:hover:not(.active){background:#f1f3f5}
#logoutBtn{color:#dc3545!important;border-color:#dc3545!important}
#mainContent{max-width:960px;margin:0 auto;padding:1.5rem 1rem}
.page h2{font-size:1.3rem;font-weight:600;margin-bottom:1rem}

/* ═══ BUTTONS ═══ */
.btn-primary{padding:.5rem 1rem;background:#212529;color:#fff;border:none;border-radius:6px;font-size:.9rem;cursor:pointer}
.btn-primary:hover{background:#343a40}
.btn-danger{padding:.5rem 1rem;background:none;color:#dc3545;border:1px solid #dc3545;border-radius:6px;font-size:.85rem;cursor:pointer}
.btn-danger:hover{background:#dc3545;color:#fff}
.btn-small{padding:.25rem .5rem;border:1px solid #dee2e6;border-radius:4px;background:#fff;font-size:.8rem;cursor:pointer;white-space:nowrap}
.btn-small:hover{background:#f1f3f5}
.btn-snooze{color:#6c757d}
.btn-ignore{color:#dc3545}
.btn-action{color:#198754}
.btn-quick-interact{font-size:.9rem;padding:.2rem .4rem;border:none;background:none;cursor:pointer}
.range-labels{display:flex;justify-content:space-between;font-size:.75rem;color:#6c757d;margin-top:-.25rem}

/* ═══ BADGES ═══ */
.badge{display:inline-block;padding:.15rem .5rem;border-radius:10px;font-size:.75rem;font-weight:500}
.badge-personal{background:#e8f4fd;color:#1a6fb5}
.badge-estrategico{background:#f3e8fd;color:#7c3aed}
.badge-activo,.badge-positivo{background:#d1fae5;color:#065f46}
.badge-pausado,.badge-neutro{background:#fef3c7;color:#92400e}
.badge-archivado{background:#e5e7eb;color:#6b7280}
.badge-conflicto,.badge-negativo,.badge-tenso{background:#fee2e2;color:#991b1b}
.badge-reconciliacion{background:#e8f4fd;color:#1a6fb5}
.badge-green{background:#d1fae5;color:#065f46}
.badge-amber{background:#fef3c7;color:#92400e}
.badge-source{background:#e5e7eb;color:#374151;font-style:italic}

/* ═══ FILTERS ═══ */
.filters{display:flex;gap:.75rem;margin-bottom:1rem;flex-wrap:wrap}
.filters select,.filters input{padding:.5rem .75rem;border:1px solid #ced4da;border-radius:6px;font-size:.9rem;background:#fff}
.filters select{min-width:140px}

/* ═══ CONTACTS ═══ */
.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem}
.contact-list,.interaction-list,.suggestion-list,.group-list,.graph-connections{display:flex;flex-direction:column;gap:.5rem}
.contact-card{background:#fff;padding:.85rem 1rem;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.06);cursor:pointer;transition:box-shadow .15s}
.contact-card:hover{box-shadow:0 2px 8px rgba(0,0,0,.12)}
.contact-main{display:flex;align-items:baseline;gap:.5rem;margin-bottom:.35rem}
.contact-name{font-weight:600;font-size:1rem}
.contact-category{font-size:.8rem;color:#6c757d}
.contact-meta{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}
.contact-last{font-size:.8rem;color:#6c757d}

/* ═══ INTERACTIONS ═══ */
.interaction-item{background:#fff;padding:.75rem 1rem;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.06)}
.interaction-header{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;margin-bottom:.25rem}
.interaction-type{font-size:.8rem;color:#6c757d}
.interaction-date{font-size:.8rem;color:#adb5bd;margin-left:auto}
.interaction-notes{font-size:.9rem;color:#495057;margin:.25rem 0}
.interaction-tags{display:flex;gap:.35rem;flex-wrap:wrap;margin-top:.25rem}

/* ═══ SUGGESTIONS ═══ */
.suggestion-card{background:#fff;padding:.85rem 1rem;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.06)}
.suggestion-header{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;margin-bottom:.4rem}
.suggestion-contact{font-weight:600;font-size:.9rem}
.suggestion-body{font-size:.9rem;color:#495057;margin-bottom:.5rem;line-height:1.4}
.suggestion-actions{display:flex;gap:.35rem}

/* ═══ GROUPS ═══ */
.group-card{background:#fff;padding:.85rem 1rem;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.06);cursor:pointer;transition:box-shadow .15s}
.group-card:hover{box-shadow:0 2px 8px rgba(0,0,0,.12)}
.group-main{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}
.group-name{font-weight:600;font-size:1rem}
.group-count{font-size:.8rem;color:#6c757d;margin-left:auto}
.group-desc{font-size:.85rem;color:#6c757d;margin-top:.25rem}
.checkbox-scroll{max-height:200px;overflow-y:auto;border:1px solid #dee2e6;border-radius:6px;padding:.5rem;display:flex;flex-direction:column;gap:.25rem}

/* ═══ GRAPH ═══ */
.connection-item{background:#fff;padding:.75rem 1rem;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.06);display:flex;align-items:center;gap:.75rem;flex-wrap:wrap}
.connection-names{font-size:.95rem}
.connection-strength{color:#f59e0b;font-size:.85rem;margin-left:auto}

/* ═══ IMPORT ═══ */
.import-section{background:#fff;padding:1rem 1.25rem;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.06);margin-bottom:1rem}
.import-section h3{font-size:1rem;margin-bottom:.5rem}
.import-section input[type=file]{margin:.5rem 0}
.csv-table{width:100%;border-collapse:collapse;font-size:.8rem;margin:.5rem 0}
.csv-table th{background:#f1f3f5;padding:.35rem .5rem;text-align:left;font-weight:600}
.csv-table td{padding:.3rem .5rem;border-bottom:1px solid #e9ecef}
.mapping-row{display:flex;align-items:center;gap:.5rem;margin:.35rem 0}
.mapping-row label{min-width:200px;font-size:.85rem}
.mapping-row select{flex:1;padding:.35rem;border:1px solid #ced4da;border-radius:4px;font-size:.85rem}
.muted{color:#6c757d;font-size:.8rem;margin-top:.25rem}

/* ═══ MODAL ═══ */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.4);display:flex;align-items:flex-start;justify-content:center;padding-top:2rem;z-index:100;overflow-y:auto}
.modal-card{background:#fff;border-radius:12px;width:100%;max-width:520px;padding:1.5rem;margin-bottom:2rem;box-shadow:0 4px 24px rgba(0,0,0,.15)}
.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem}
.modal-header h3{font-size:1.15rem;font-weight:600}
.modal-close{background:none;border:none;font-size:1.5rem;cursor:pointer;color:#6c757d;line-height:1}
#contactForm label,#interactionForm label,#groupForm label,#connectionForm label{display:block;font-size:.85rem;font-weight:500;color:#495057;margin:.5rem 0 .2rem}
#contactForm input[type=text],#contactForm input[type=date],#contactForm select,#contactForm textarea,
#interactionForm input,#interactionForm select,#interactionForm textarea,
#groupForm input,#groupForm select,#groupForm textarea,
#connectionForm input,#connectionForm select,#connectionForm textarea{width:100%;padding:.55rem .7rem;border:1px solid #ced4da;border-radius:6px;font-size:.95rem;font-family:inherit}
#contactForm input:focus,#contactForm select:focus,#contactForm textarea:focus,
#interactionForm select:focus,#interactionForm textarea:focus,
#groupForm input:focus,#groupForm select:focus,
#connectionForm select:focus,#connectionForm input:focus{outline:none;border-color:#4a90d9;box-shadow:0 0 0 3px rgba(74,144,217,.1)}
.checkbox-group{display:flex;gap:1rem;padding:.3rem 0;flex-wrap:wrap}
.checkbox-label{display:flex!important;align-items:center;gap:.35rem;font-size:.9rem!important;font-weight:400!important;cursor:pointer}
fieldset{border:1px solid #dee2e6;border-radius:8px;padding:.75rem 1rem;margin:.5rem 0}
fieldset legend{font-size:.85rem;font-weight:600;color:#495057;padding:0 .25rem}
.modal-actions{display:flex;justify-content:space-between;margin-top:1rem;gap:.75rem}
.empty{text-align:center;color:#6c757d;padding:2rem 0}

/* ═══ LOADING ═══ */
@keyframes spin{to{transform:rotate(360deg)}}
.loading{text-align:center;padding:2rem 0;color:#6c757d}
.loading::before{content:"";display:inline-block;width:24px;height:24px;border:3px solid #dee2e6;border-top-color:#212529;border-radius:50%;animation:spin .6s linear infinite;margin-right:.5rem;vertical-align:middle}
.loading-text{display:inline-block;vertical-align:middle}

/* ═══ MOBILE ═══ */
@media(max-width:480px){
  .login-card{padding:2rem 1.5rem}
  .modal{padding:0;align-items:stretch}
  .modal-card{border-radius:0;max-width:100%;min-height:100vh;margin:0}
  .filters{flex-direction:column}
  .filters select,.filters input{width:100%}
  #appScreen header{flex-direction:column;align-items:flex-start}
  #appScreen nav{gap:.2rem}
  #appScreen nav button{padding:.3rem .45rem;font-size:.75rem}
  .mapping-row{flex-direction:column;align-items:stretch}
  .mapping-row label{min-width:auto}
}