/* V1.7 — calculadora estándar TEF, aislada del diseño principal. */
.calc-mode-tabs{display:flex;gap:6px;padding:12px 28px 0;background:#F6F8FB;border-bottom:1px solid #E1E8F0}
.calc-mode-tab{padding:13px 24px 12px;border:1px solid transparent;border-bottom:3px solid transparent;border-radius:8px 8px 0 0;background:transparent;font-size:13px;font-weight:800;color:#667F94;transition:background .15s,color .15s}
.calc-mode-tab:hover{background:#E9F1F7;color:#213549}
.calc-mode-tab.is-active{background:white;color:#213549;border-color:#E1E8F0;border-bottom-color:#5281B1}
.calc-mode-count{display:inline-block;font-size:10px;color:#48719B;background:#E8F0F8;padding:2px 7px;margin-left:6px;border-radius:9px}
#calc-basic-panel[hidden],#calc-finance-panel[hidden]{display:none!important}
.calc-basic-panel{padding:22px 24px 23px;background:#F6F8FB}
.calc-basic-intro{max-width:550px;margin:0 auto 14px}
.calc-basic-intro>span{color:#5281B1;font-size:10px;font-weight:850;letter-spacing:.16em}
.calc-basic-intro p{margin:5px 0 0;color:#688093;font-size:12px;line-height:1.6}
.calc-basic-card{width:min(100%,450px);margin:0 auto;border:1px solid #DCE5EE;border-radius:14px;background:white;padding:16px;box-shadow:0 10px 30px rgba(33,53,73,.055)}
.calc-basic-screen{border:1px solid #DEE8F0;border-radius:11px;background:#F2F6FA;min-height:111px;padding:16px 17px 14px;display:flex;flex-direction:column;justify-content:space-between;text-align:right;gap:10px;font-variant-numeric:tabular-nums;overflow:hidden}
.calc-basic-expression{font-size:13px;min-height:19px;line-height:1.4;color:#7D8D9D;overflow-wrap:anywhere}
.calc-basic-display{font-size:clamp(30px,4.4vw,44px);font-weight:800;color:#213549;line-height:1.2;letter-spacing:-.025em;overflow-wrap:anywhere}
.calc-basic-display.is-error{color:#A33F3F;font-size:25px}
.calc-basic-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:7px;margin-top:12px}
.calc-basic-grid .calc-key{border:1px solid #DCE4EC;border-radius:9px;background:white;color:#253D53;font-size:20px;font-weight:680;min-width:0;min-height:52px;padding:8px 5px;transition:background .12s,transform .12s}
.calc-basic-grid .calc-key:hover{background:#EEF3F8}
.calc-basic-grid .calc-key:active{transform:scale(.975)}
.calc-basic-grid .calc-key-fn{background:#F0F4F8;color:#526F87;font-size:16px}
.calc-basic-grid .calc-key-op{background:#EAF2FA;color:#356C9B;font-size:23px}
.calc-basic-grid .calc-key-equals{background:#213549;color:white;border-color:#213549;font-size:23px}
.calc-basic-grid .calc-key-equals:hover{background:#324F6D}
.calc-basic-grid .calc-key-wide{grid-column:1 / -1;min-height:48px}
.calc-key-equals-word{font-size:12px;font-weight:750;vertical-align:middle;margin-left:8px;letter-spacing:.01em}
.calc-basic-hint{max-width:550px;margin:14px auto 2px;font-size:11px;color:#6A7F92;line-height:1.65}
.calc-mode-tab:focus-visible,.calc-basic-grid .calc-key:focus-visible{outline:3px solid #75B1E9;outline-offset:2px}
@media(max-width:720px){.calc-mode-tabs{padding:9px 12px 0}.calc-mode-tab{flex:1;padding:12px 10px;font-size:12px}.calc-basic-panel{padding:15px 12px 20px}.calc-basic-card{padding:10px}.calc-basic-grid{gap:6px}.calc-basic-grid .calc-key{min-height:49px}.calc-basic-screen{min-height:100px;padding:13px}}
@media(max-width:380px){.calc-basic-grid .calc-key{min-height:43px;font-size:18px}.calc-basic-grid .calc-key-fn{font-size:15px}.calc-basic-display{font-size:29px}}
@media(prefers-reduced-motion:reduce){.calc-basic-grid .calc-key,.calc-mode-tab{transition:none}}