*{box-sizing:border-box} :root{font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;color:#172033;background:#f3f6fb;font-size:15px}body{margin:0}.topbar{background:#14243a;color:#fff;display:flex;align-items:center;gap:2rem;padding:14px max(20px,calc((100% - 1200px)/2));flex-wrap:wrap}.brand{font-weight:800;font-size:1.1rem;color:#fff;text-decoration:none;white-space:nowrap}.topbar nav{display:flex;gap:1rem;flex:1;flex-wrap:wrap}.topbar nav a,.user-area,.user-area a{color:#dce7f7;text-decoration:none}.user-area{display:flex;gap:12px;align-items:center}.user-area form{margin:0}.container{max-width:1200px;margin:26px auto;padding:0 18px;min-height:calc(100vh - 150px)}.footer{text-align:center;color:#667085;padding:20px}.page-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:18px}h1{font-size:1.65rem;margin:0 0 6px}h2{font-size:1.2rem;margin-top:0}.muted{color:#667085}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.card,.panel{background:#fff;border:1px solid #e1e7ef;border-radius:14px;padding:20px;box-shadow:0 3px 12px #14243a08}.stat{font-size:2rem;font-weight:800;margin-top:8px}.actions{display:flex;gap:8px;flex-wrap:wrap}.btn,button{font:inherit;border:0;border-radius:8px;background:#245bd6;color:#fff;padding:10px 14px;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:6px}.btn.secondary,button.secondary{background:#e9eef7;color:#24334a}.btn.danger,button.danger{background:#b42318}.link-button{background:none;padding:0;color:#fff;text-decoration:underline}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}label{font-weight:650;font-size:.9rem}input,select,textarea{font:inherit;width:100%;border:1px solid #cbd5e1;border-radius:8px;padding:10px 11px;background:#fff;color:#172033}textarea{min-height:100px;resize:vertical}.hint{font-size:.82rem;color:#667085}.table-wrap{overflow:auto;border-radius:12px;border:1px solid #e1e7ef;background:#fff}table{width:100%;border-collapse:collapse;min-width:720px}th,td{text-align:left;padding:12px 14px;border-bottom:1px solid #e9edf3;vertical-align:top}th{background:#f8fafc;font-size:.82rem;text-transform:uppercase;letter-spacing:.03em;color:#526078}tr:last-child td{border-bottom:0}.badge{display:inline-block;padding:4px 8px;border-radius:999px;background:#e8eef8;font-size:.78rem;font-weight:700}.badge.abierto{background:#fff0c2;color:#7a4b00}.badge.en-progreso{background:#dceaff;color:#174ea6}.badge.terminado{background:#d9f5e5;color:#146c43}.alert{padding:12px 14px;border-radius:9px;margin-bottom:16px}.alert.success{background:#d9f5e5;color:#146c43}.alert.error{background:#fee4e2;color:#912018}.filters{display:flex;gap:10px;align-items:end;flex-wrap:wrap;margin-bottom:16px}.filters .field{min-width:200px}.empty{padding:24px;text-align:center;color:#667085}.detail-list{display:grid;grid-template-columns:160px 1fr;gap:9px}.detail-list strong{color:#526078}.auth-card{max-width:440px;margin:8vh auto}.file-list{margin:8px 0;padding-left:20px}.inline-form{display:inline}.sla{white-space:nowrap;font-variant-numeric:tabular-nums}@media(max-width:760px){.topbar{gap:12px}.topbar nav{order:3;flex-basis:100%;gap:14px}.user-area{margin-left:auto}.grid,.grid.two{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.container{margin:18px auto;padding:0 12px}.card,.panel{padding:16px}.detail-list{grid-template-columns:1fr;gap:4px}.detail-list strong{margin-top:8px}.page-head{align-items:flex-start}}

/* Centro de asistencia técnica: estética de un Technical Assistance Center (TAC). */
:root{--tac-navy:#071d33;--tac-blue:#0b5cab;--tac-cyan:#00a6c8;--tac-line:#d7e3ee;--tac-ink:#142b42}
.topbar{background:linear-gradient(105deg,#061a2e,#0b3154 72%,#075b82);border-bottom:3px solid var(--tac-cyan);box-shadow:0 5px 18px #071d331a}
.brand{letter-spacing:.01em}.topbar nav a{font-size:.92rem}.topbar nav a:hover,.user-area>a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.tac-hero{background:linear-gradient(120deg,#fff 0%,#f1f8fc 100%);border:1px solid #cbdce9;border-radius:16px;padding:22px 24px;margin-bottom:18px;box-shadow:0 8px 24px #12395a0b;position:relative;overflow:hidden}
.tac-hero:after{content:"";position:absolute;right:-42px;top:-68px;width:210px;height:210px;border:28px solid #00a6c80c;border-radius:50%;pointer-events:none}
.tac-kicker{display:flex;align-items:center;gap:9px;color:#426078;font-size:.73rem;font-weight:800;letter-spacing:.13em;margin-bottom:18px;position:relative;z-index:1}
.tac-dot{width:8px;height:8px;border-radius:50%;background:#00a6c8;box-shadow:0 0 0 4px #00a6c81c}.tac-case{margin-left:auto;color:#0b5cab;background:#e3f2fa;padding:6px 9px;border-radius:5px;letter-spacing:.04em}
.tac-hero .page-head{position:relative;z-index:1}.tac-hero h1{color:var(--tac-navy);font-size:1.8rem}.tac-summary{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid var(--tac-line);margin-top:20px;padding-top:16px;position:relative;z-index:1}
.tac-summary>div{display:flex;flex-direction:column;align-items:flex-start;gap:8px;padding:0 18px;border-right:1px solid var(--tac-line)}.tac-summary>div:first-child{padding-left:0}.tac-summary>div:last-child{border-right:0}.tac-summary small{font-size:.68rem;letter-spacing:.08em;color:#60788c;font-weight:800}.tac-summary strong{color:var(--tac-ink);font-size:.92rem}.tac-summary .sla{font-size:1.12rem;color:#075b82;font-variant-numeric:tabular-nums}
.tac-content{align-items:start}.tac-content .panel,.tac-files{border-radius:13px;border-color:#d6e2ed;box-shadow:0 5px 18px #12395a08}.section-heading{display:flex;align-items:center;gap:12px;margin-bottom:20px;padding-bottom:14px;border-bottom:1px solid #e5edf4}.section-heading h2{margin:0 0 4px;color:#0b2944}.section-heading p{margin:0;color:#6b8194;font-size:.83rem}.section-icon{flex:0 0 38px;height:38px;display:grid;place-items:center;border-radius:9px;background:#e4f4fa;color:#075b82;font-size:.76rem;font-weight:850;letter-spacing:.02em}.detail-list{grid-template-columns:145px minmax(0,1fr);gap:14px}.detail-list strong{font-size:.83rem;color:#5a7185}.detail-list span{overflow-wrap:anywhere}.tac-content .form-grid button,.password-panel button{background:#075b9a}.tac-content .form-grid button:hover,.password-panel button:hover{background:#064575}.severity-critical,.severity-critica{color:#b42318!important}.severity-high,.severity-alta{color:#b54708!important}.severity-medium,.severity-media{color:#8a6100!important}.severity-low,.severity-baja{color:#16704a!important}.tac-files .file-list li{padding:9px 0;border-bottom:1px solid #eaf0f5}.password-panel{max-width:760px}.user-area>a{color:#dce7f7;text-decoration:none;font-size:.9rem}
@media(max-width:760px){.tac-hero{padding:16px}.tac-summary{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:18px}.tac-summary>div{padding:0 10px;border-right:0}.tac-summary>div:nth-child(odd){padding-left:0}.tac-summary>div:nth-child(even){border-left:1px solid var(--tac-line)}.tac-kicker{font-size:.65rem;letter-spacing:.07em}.tac-hero h1{font-size:1.4rem}.detail-list{grid-template-columns:1fr}.detail-list strong{margin-top:8px}}


/* Seguimiento de casos estilo Technical Assistance Center (TAC). */
.actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.tac-updates .timeline{display:flex;flex-direction:column;gap:0;margin:18px 0}
.timeline-item{position:relative;padding:0 0 20px 22px;border-left:2px solid var(--border,#d8dee8);margin-left:7px}
.timeline-item:last-child{border-left-color:transparent;padding-bottom:0}
.timeline-item:before{content:"";position:absolute;left:-7px;top:3px;width:10px;height:10px;border-radius:50%;background:var(--accent,#e8b323);border:2px solid var(--surface,#fff)}
.timeline-meta{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.86rem;color:var(--muted,#64748b);margin-bottom:7px}
.timeline-meta strong{color:var(--text,#172033)}
.timeline-text{line-height:1.6;overflow-wrap:anywhere}
.update-form{border-top:1px solid var(--border,#d8dee8);padding-top:18px;margin-top:18px}
@media(max-width:640px){.actions{width:100%}.actions .btn{flex:1;text-align:center}.timeline-meta{flex-direction:column;gap:3px}}


/* Tema corporativo inspirado en interfaces de soporte técnico empresarial. No usa marcas ni logotipos oficiales. */
:root{--tac-navy:#0b1f33;--tac-blue:#00bceb;--tac-blue-dark:#087ca8;--tac-mid-blue:#005073;--tac-bg:#f3f6f8;--tac-surface:#fff;--tac-line:#d8e2e9;--tac-ink:#142b3b;--tac-muted:#536b7c;--tac-focus:#087ca8; color:var(--tac-ink);background:var(--tac-bg)}
body{background:var(--tac-bg);color:var(--tac-ink);line-height:1.5}
.topbar{background:var(--tac-navy);border-bottom:4px solid var(--tac-blue);box-shadow:0 3px 14px #0b1f3314;padding-top:15px;padding-bottom:15px}
.brand{font-size:1.08rem;font-weight:750;letter-spacing:.01em}
.topbar nav a,.user-area,.user-area a{color:#e6f1f7}.topbar nav a:hover,.user-area a:hover{color:var(--tac-blue);text-decoration:underline;text-underline-offset:4px}
.container{max-width:1240px;margin:28px auto 34px;min-height:calc(100vh - 160px)}
h1,h2,h3{color:var(--tac-navy);letter-spacing:-.018em}h1{font-size:1.7rem;font-weight:750}h2{font-weight:720}
.muted,.hint{color:var(--tac-muted)}
.card,.panel{border:1px solid var(--tac-line);border-radius:10px;box-shadow:0 2px 7px #0b1f3308}
.stat{color:var(--tac-mid-blue)}
.btn,button{background:var(--tac-blue-dark);border-radius:5px;font-weight:650;transition:background .15s ease,box-shadow .15s ease}
.btn:hover,button:hover{background:var(--tac-mid-blue)}.btn:focus-visible,button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #00bceb66;outline-offset:2px}
.btn.secondary,button.secondary{background:#e8f1f6;color:var(--tac-navy);border:1px solid #cbdde7}.btn.secondary:hover,button.secondary:hover{background:#d7e8f1}
.btn.danger,button.danger{background:#b42318}.link-button{background:transparent;color:#e6f1f7}
input,select,textarea{border-color:#c5d4de;border-radius:5px}input:focus,select:focus,textarea:focus{border-color:var(--tac-blue-dark);box-shadow:0 0 0 3px #00bceb1c;outline:0}
.table-wrap{border-color:var(--tac-line);border-radius:8px;box-shadow:0 2px 7px #0b1f3307}th{background:#eaf1f5;color:#304b5c}td{border-bottom-color:#e7edf1}tbody tr:hover{background:#f7fbfd}
.badge{border-radius:4px}.badge.abierto{background:#fff1ce;color:#7a4b00}.badge.en-progreso{background:#dceef8;color:#075985}.badge.terminado{background:#d9f4e6;color:#126344}
.alert{border-radius:6px}.alert.success{background:#e0f4ea;color:#126344}.alert.error{background:#fde9e7;color:#912018}
.footer{border-top:1px solid var(--tac-line);background:#fff;color:#536b7c;font-size:.84rem}
.tac-hero{border-color:#cbdce5;border-radius:10px;background:linear-gradient(115deg,#fff,#f2f9fc);box-shadow:0 3px 14px #0b1f3308}.tac-hero h1{color:var(--tac-navy)}.tac-dot{background:var(--tac-blue);box-shadow:0 0 0 4px #00bceb20}.tac-case{background:#e4f6fb;color:#005073;border-radius:4px}
.tac-summary{border-color:var(--tac-line)}.tac-summary>div{border-color:var(--tac-line)}
@media(max-width:760px){.container{margin:18px auto 24px}.topbar{padding-left:16px;padding-right:16px}.user-area{flex-wrap:wrap}.tac-summary{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:16px}.tac-summary>div:nth-child(2){border-right:0}.tac-summary>div:nth-child(3){padding-left:0}}