.tsrf{font:14px Tahoma,Arial,sans-serif;direction:rtl;text-align:right;color:#183451;max-width:650px;margin:16px auto}.tsrf *{box-sizing:border-box}.tsrf-card{background:#fff;border:1px solid #dfe8f5;border-radius:20px;box-shadow:0 12px 34px #163a6717;overflow:hidden}.tsrf-head{display:flex;gap:12px;align-items:center;background:linear-gradient(120deg,#f0f6ff,#fbfdff);border-bottom:1px solid #e7edf6;padding:13px 19px}.tsrf-icon{display:flex;align-items:center;justify-content:center;flex:0 0 43px;width:43px;height:43px;background:linear-gradient(145deg,#e1ecff,#d5e4ff);color:#1554bf;border-radius:13px;box-shadow:inset 0 0 0 1px #d1e0fb}.tsrf-icon svg{width:25px;height:25px}.tsrf-head h2{margin:0 0 4px;font-size:17px;line-height:1.5;color:#163a67}.tsrf-head p{margin:0;font-size:11px;color:#718096;line-height:1.7}.tsrf-progress{padding:11px 20px 4px}.tsrf-track{height:4px;background:#e9eef7;border-radius:8px;overflow:hidden}.tsrf-track span{display:block;width:33.33%;height:100%;background:linear-gradient(90deg,#1b63d8,#4b91f5);transition:width .2s}.tsrf-labels{display:flex;justify-content:space-between;font-size:10px;color:#8a99ad;margin-top:7px}.tsrf-labels .active{color:#1855c9;font-weight:bold}.tsrf-form{padding:5px 20px 15px}.tsrf-step{display:none}.tsrf-step.active{display:block;animation:tsrf-in .18s ease-out}.tsrf-step h3{margin:5px 0 11px;font-size:15px;color:#183b66;display:flex;align-items:center;gap:8px}.tsrf-step h3:before{content:"";width:4px;height:18px;border-radius:5px;background:#2e70d4;display:inline-block}.tsrf-step[data-step="1"] .tsrf-field,.tsrf-step[data-step="2"] .tsrf-field{margin-bottom:9px}.tsrf-field>label{display:block;margin-bottom:5px;font-size:11px;font-weight:bold;color:#38516f}.tsrf-field b{color:#d22d42}.tsrf-input{width:100%;min-height:36px;border:1px solid #d6e0ee;border-radius:9px;padding:8px 10px;background:#fbfdff;color:#233e5d;font:inherit;font-size:12px;text-align:right;direction:rtl;outline:none;transition:border-color .15s,box-shadow .15s,background .15s}.tsrf-input:focus{border-color:#4c80df;background:#fff;box-shadow:0 0 0 3px #1855c914}.tsrf-input::placeholder{color:#a0adbf}textarea.tsrf-input{min-height:67px;resize:vertical}.tsrf-file{width:100%;padding:8px;border:1px dashed #b7c9e5;border-radius:9px;background:#f8faff;font-size:11px}.tsrf-field small{display:block;color:#8290a3;font-size:10px;margin-top:4px}.tsrf-message{display:none;padding:8px 10px;border-radius:9px;font-size:11px;line-height:1.8;margin-bottom:8px}.tsrf-message.error{display:block;background:#fff0f1;color:#a82132}.tsrf-message.info{display:block;background:#eff6ff;color:#1b4c91}.tsrf-actions{display:flex;gap:8px;border-top:1px solid #edf1f7;padding-top:11px;margin-top:11px}.tsrf-btn{min-height:37px;border:0;border-radius:10px;padding:9px 14px;font:inherit;font-size:12px;font-weight:bold;cursor:pointer;transition:transform .15s,box-shadow .15s}.tsrf-btn:hover:not(:disabled){transform:translateY(-1px)}.tsrf-btn:disabled{opacity:.45;cursor:not-allowed}.tsrf-next,.tsrf-submit,.tsrf-again{background:linear-gradient(115deg,#164db5,#2875e2);color:#fff;flex:1;box-shadow:0 4px 10px #1855c923}.tsrf-prev{background:#eef3fa;color:#415975}.tsrf-success{padding:24px 20px;text-align:center}.tsrf-success[hidden]{display:none}.tsrf-success>span{display:flex;align-items:center;justify-content:center;width:48px;height:48px;margin:0 auto 10px;background:#e5f8ed;color:#13834a;border-radius:50%;font-size:27px}.tsrf-success h3{color:#183b66;font-size:17px;margin:8px 0}.tsrf-success p{color:#718096;font-size:12px;line-height:1.9;margin:5px 0 15px}@keyframes tsrf-in{from{opacity:.4;transform:translateY(3px)}to{opacity:1;transform:translateY(0)}}@media(min-width:560px){.tsrf-step[data-step="1"]{display:none}.tsrf-step[data-step="1"].active{display:grid;grid-template-columns:1fr 1fr;column-gap:13px}.tsrf-step[data-step="1"] h3{grid-column:1/-1}.tsrf-step[data-step="2"].active{display:block}.tsrf-step[data-step="3"].active{display:block}}@media(max-width:600px){.tsrf{margin:10px 0}.tsrf-head{padding:12px 14px}.tsrf-head h2{font-size:15px}.tsrf-icon{width:40px;height:40px;flex-basis:40px}.tsrf-progress{padding:10px 15px 4px}.tsrf-form{padding:5px 15px 13px}.tsrf-btn{padding:9px 10px;font-size:11px}.tsrf-step[data-step="1"].active{display:block}}

/* Initial troubleshooting guidance */
.tsrf-guide{margin:14px 0 2px;padding:14px 16px;border:1px solid #cfe4f5;border-radius:14px;background:linear-gradient(135deg,#f3f9ff 0%,#f8fbff 100%);color:#18334b}
.tsrf-guide-heading{display:flex;align-items:center;gap:9px;font-size:14px;margin-bottom:7px}
.tsrf-guide-mark{display:inline-flex;align-items:center;justify-content:center;width:25px;height:25px;border-radius:50%;background:#1769aa;color:#fff;font-weight:700;font-family:serif}
.tsrf-guide-copy{font-size:13px;line-height:1.9;margin:0 0 7px;color:#294b66}
.tsrf-guide-warning{font-size:12px;line-height:1.8;margin:0;padding-top:7px;border-top:1px solid #d8e8f5;color:#6c5b34}
.tsrf-guide.is-active{border-color:#9cc9eb}
@media(max-width:600px){.tsrf-guide{padding:12px;border-radius:12px}.tsrf-guide-copy{font-size:12px}}

/* Compact horizontal troubleshooting guide */
.tsrf-guide{display:grid;grid-template-columns:minmax(150px,.8fr) minmax(220px,1.5fr) minmax(200px,1.2fr);align-items:center;gap:12px;margin:10px 0 2px;padding:10px 13px;border-radius:12px}
.tsrf-guide-heading{margin:0;min-width:0}
.tsrf-guide-copy{margin:0;line-height:1.7}
.tsrf-guide-warning{margin:0;padding:0 12px 0 0;border-top:0;border-right:1px solid #d8e8f5;line-height:1.7}
@media(max-width:640px){
 .tsrf-guide{grid-template-columns:1fr;gap:6px;padding:11px 12px}
 .tsrf-guide-heading{margin:0}
 .tsrf-guide-warning{padding:6px 0 0;border-right:0;border-top:1px solid #d8e8f5}
}


/* Version 1.3: compact device fields and visual fault selector */
.tsrf{max-width:980px;margin:12px auto}
.tsrf-head{padding:15px 22px}
.tsrf-progress{padding:10px 22px 3px}
.tsrf-form{padding:4px 22px 16px}
.tsrf-step h3{margin:5px 0 10px}
.tsrf-step[data-step="1"].active{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));column-gap:12px;row-gap:8px;align-items:start}
.tsrf-step[data-step="1"] h3{grid-column:1/-1;margin-bottom:3px}
.tsrf-step[data-step="1"] .tsrf-field{margin:0;min-width:0}
.tsrf-step[data-step="1"] .tsrf-field.tsrf-fault-field{grid-column:1/-1;margin-top:2px}
.tsrf-fault-field>label{margin-bottom:8px;font-size:12px}
.tsrf-fault-field select.tsrf-input{display:none}
.tsrf-fault-options{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
.tsrf-fault-option{display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:46px;padding:9px 11px;border:1px solid #e0e8f4;border-radius:10px;background:#fff;color:#243e61;font:inherit;font-size:12px;text-align:right;cursor:pointer;transition:border-color .15s,background .15s,box-shadow .15s}
.tsrf-fault-option:before{content:'○';color:#3976d8;font-size:17px;line-height:1;flex:0 0 auto}
.tsrf-fault-option:hover{border-color:#8bb5f4;background:#f8fbff}
.tsrf-fault-option[aria-pressed="true"]{border-color:#2563d9;background:#edf4ff;box-shadow:inset 0 0 0 1px #2563d9;color:#1649a4;font-weight:bold}
.tsrf-fault-option[aria-pressed="true"]:before{content:'✓';display:flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:50%;background:#2563d9;color:white;font-size:12px}
.tsrf-guide{grid-column:1/-1;grid-template-columns:minmax(145px,.7fr) minmax(220px,1.6fr) minmax(190px,1.2fr);gap:12px;margin:4px 0 0;padding:11px 13px}
.tsrf-guide-heading{font-size:13px;line-height:1.5}
.tsrf-guide-mark{flex:0 0 25px}
.tsrf-guide-copy,.tsrf-guide-warning{font-size:11px;line-height:1.75}
.tsrf-actions{margin-top:10px;padding-top:10px}
@media(max-width:760px){.tsrf-step[data-step="1"].active{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:10px}.tsrf-fault-options{grid-template-columns:repeat(2,minmax(0,1fr))}.tsrf-guide{grid-template-columns:1fr;gap:6px}.tsrf-guide-warning{padding:6px 0 0;border-right:0;border-top:1px solid #d8e8f5}}
@media(max-width:480px){.tsrf{margin:8px auto}.tsrf-head{padding:12px 14px}.tsrf-progress{padding:9px 14px 3px}.tsrf-form{padding:4px 13px 13px}.tsrf-step[data-step="1"].active{display:block}.tsrf-step[data-step="1"] .tsrf-field{margin-bottom:8px}.tsrf-fault-options{grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}.tsrf-fault-option{min-height:40px;padding:8px;font-size:11px}.tsrf-guide{margin-top:9px}}