/* ═══════════════════════════════════════════════
   BlackZone QC System — Unified Stylesheet
   Design language: same as STM32 Memory Analyzer
   ═══════════════════════════════════════════════ */

   :root {
    --bg:       #0d1117;
    --bg2:      #161b22;
    --card:     #1c2128;
    --inp:      #141920;
    --bdr:      #30363d;
    --tx1:      #e6edf3;
    --tx2:      #adbac7;
    --tx3:      #909dab;
    --green:    #3fb950;
    --green-t:  #1a3a22;
    --pink:     #f778ba;
    --blue:     #58a6ff;
    --yellow:   #e3b341;
    --orange:   #d29922;
    --red:      #f85149;
    --purple:   #bc8cff;
    --accent:   #1EDAAD;
  }
  
  /* ── RESET ── */
  *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  
  body {
    font-family: 'Rajdhani', 'Segoe UI', sans-serif;
    font-size: 16px;
    background: var(--bg);
    color: var(--tx1);
    min-height: 100vh;
    background-image:
      radial-gradient(ellipse at 10% 10%, rgba(30,218,173,.05) 0%, transparent 45%),
      radial-gradient(ellipse at 90% 90%, rgba(247,120,186,.04) 0%, transparent 45%);
  }
  
  /* ── TYPOGRAPHY ── */
  h2 {
    font-size: clamp(20px, 2.8vw, 28px);
    font-weight: 700;
    color: var(--accent);
    letter-spacing: .5px;
    margin-bottom: 16px;
    text-align: center;
  }
  h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--tx1);
    text-align: center;
    margin-bottom: 10px;
  }
  h4 {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--tx3);
    margin: 20px 0 10px;
    display: flex;
    align-items: center;
    gap: 7px;
  }
  h4::before {
    content: '';
    width: 5px; height: 5px;
    border-radius: 50%;
    background: var(--blue);
    flex-shrink: 0;
  }
  h5 {
    font-size: 13px;
    font-weight: 600;
    color: var(--tx2);
    margin: 14px 0 6px;
    letter-spacing: .3px;
  }
  p { font-size: 14px; color: var(--tx2); line-height: 1.6; }
  hr {
    border: none;
    border-top: 1px solid var(--bdr);
    margin: 18px 0;
  }
  
  /* ── LAYOUT ── */
  .page-wrap {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 32px 20px 80px;
  }
  
  /* ── PAGE HEADER ── */
  .page-header {
    text-align: center;
    margin-bottom: 24px;
  }
  .page-badge {
    display: inline-block;
    font-family: 'JetBrains Mono', monospace;
    font-size: 9px;
    letter-spacing: 2.5px;
    color: var(--tx3);
    border: 1px solid var(--bdr);
    padding: 3px 12px;
    border-radius: 2px;
    margin-bottom: 10px;
    text-transform: uppercase;
  }
  .page-title { font-size: clamp(20px, 3.5vw, 30px); font-weight: 700; letter-spacing: .5px; }
  .page-title span { color: var(--accent); }
  .page-sub { font-size: 11px; color: var(--tx3); font-family: 'JetBrains Mono', monospace; margin-top: 4px; }
  
  /* ── TOP BAR ── */
  .top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--card);
    border: 1px solid var(--bdr);
    border-radius: 6px;
    padding: 10px 16px;
    margin-bottom: 16px;
    gap: 12px;
    flex-wrap: wrap;
  }
  .top-bar-brand {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 1px;
  }
  
  /* ── CARD ── */
  .card {
    background: var(--card);
    border: 1px solid var(--bdr);
    border-radius: 6px;
    padding: 18px 20px;
    margin-bottom: 14px;
  }
  .card-label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--tx3);
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 7px;
    margin-bottom: 14px;
  }
  .card-label::before {
    content: '';
    width: 5px; height: 5px;
    border-radius: 50%;
    background: var(--blue);
    flex-shrink: 0;
  }
  
  /* ── INPUTS ── */
  label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--tx3);
    letter-spacing: .5px;
    text-transform: uppercase;
    margin-bottom: 5px;
  }
  input[type="text"],
  input[type="email"],
  input[type="password"],
  input[type="number"],
  textarea,
  select {
    width: 100%;
    padding: 10px 12px;
    background: var(--inp);
    border: 1px solid var(--bdr);
    border-radius: 4px;
    color: var(--tx1);
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    outline: none;
    transition: border-color .2s;
    box-sizing: border-box;
    appearance: none;
    -webkit-appearance: none;
  }
  input:focus, textarea:focus, select:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 2px rgba(88,166,255,.12);
  }
  input::placeholder, textarea::placeholder { color: var(--tx3); }
  textarea { resize: vertical; min-height: 70px; }
  
  .input-field {
    margin-bottom: 14px;
  }
  
  /* ── RADIO GROUPS ── */
  .radio-group {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-top: 4px;
  }
  .radio-group label {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 13px;
    background: var(--inp);
    border: 1px solid var(--bdr);
    border-radius: 20px;
    cursor: pointer;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .5px;
    text-transform: uppercase;
    color: var(--tx2);
    transition: .2s;
    margin-bottom: 0;
  }
  .radio-group input[type="radio"] { display: none; }
  .radio-group input[type="radio"]:checked + span,
  .radio-group label:has(input[type="radio"]:checked) {
    border-color: var(--blue);
    background: rgba(88,166,255,.12);
    color: var(--blue);
  }
  .radio-group label.passed:has(input[type="radio"]:checked) {
    border-color: var(--green);
    background: var(--green-t);
    color: var(--green);
  }
  .radio-group label.failed:has(input[type="radio"]:checked) {
    border-color: var(--red);
    background: rgba(248,81,73,.12);
    color: var(--red);
  }
  .radio-group label.undefined:has(input[type="radio"]:checked) {
    border-color: var(--tx3);
    background: rgba(110,118,129,.1);
    color: var(--tx3);
  }
  .radio-group label:hover { border-color: var(--tx2); color: var(--tx2); }
  
  /* ── BUTTONS ── */
  button, .btn {
    display: inline-block;
    font-family: 'Rajdhani', sans-serif;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    text-decoration: none;
    padding: 8px 22px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: opacity .2s, transform .1s;
    text-align: center;
  }
  button:active, .btn:active { transform: scale(.98); }
  
  /* Primary */
  .btn-primary, button[type="submit"]:not(.btn-save) {
    background: linear-gradient(135deg, #1f6feb, #388bfd);
    color: #fff;
  }
  .btn-primary:hover, button[type="submit"]:not(.btn-save):hover { opacity: .87; }
  
  /* Save / accent */
  .btn-save {
    background: linear-gradient(135deg, #0e7a5c, var(--accent));
    color: #000;
    width: 100%;
    padding: 10px;
    font-size: 14px;
  }
  .btn-save:hover { opacity: .87; }
  
  /* Logout */
  .btn-logout {
    background: rgba(248,81,73,.15);
    border: 1px solid rgba(248,81,73,.4) !important;
    color: var(--red) !important;
  }
  .btn-logout:hover { background: rgba(248,81,73,.25); }
  
  /* Small */
  .btn-sm {
    font-size: 10px;
    padding: 5px 13px;
    background: transparent;
    border: 1px solid var(--bdr);
    color: var(--tx3);
    border-radius: 3px;
  }
  .btn-sm:hover { border-color: var(--tx2); color: var(--tx2); }
  
  /* ── SEARCH BAR ── */
  .search-row {
    display: flex;
    gap: 8px;
    align-items: flex-end;
  }
  .search-row .input-field { flex: 1; margin-bottom: 0; }
  .search-row button { flex-shrink: 0; height: 37px; padding: 0 18px; }
  
  /* ── SEARCH RESULTS LIST ── */
  .result-list {
    list-style: none;
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
  }
  .result-list li a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    background: var(--inp);
    border: 1px solid var(--bdr);
    border-radius: 4px;
    color: var(--blue);
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: .2s;
  }
  .result-list li a:hover { border-color: var(--blue); background: rgba(88,166,255,.06); }
  .result-list li a::after { content: '→'; color: var(--tx3); font-size: 15px; }
  
  /* ── DEVICE DETAIL VIEW ── */
  .detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
    margin-top: 10px;
  }
  @media(max-width: 500px) { .detail-grid { grid-template-columns: 1fr; } }
  .detail-kv {
    display: flex;
    justify-content: space-between;
    padding: 7px 11px;
    background: var(--inp);
    border-radius: 3px;
    font-size: 13px;
  }
  .detail-kv .k { color: var(--tx3); font-family: 'JetBrains Mono', monospace; }
  .detail-kv .v { color: var(--tx1); font-weight: 700; font-family: 'JetBrains Mono', monospace; }
  
  /* STATUS BADGE */
  .status-badge {
    display: inline-block;
    padding: 2px 9px;
    border-radius: 10px;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
  }
  .status-badge.Passed { background: var(--green-t); color: var(--green); border: 1px solid var(--green); }
  .status-badge.Failed { background: rgba(248,81,73,.12); color: var(--red); border: 1px solid var(--red); }
  .status-badge.Registered { background: rgba(88,166,255,.12); color: var(--blue); border: 1px solid var(--blue); }
  .status-badge.Under-test { background: rgba(227,179,65,.12); color: var(--yellow); border: 1px solid var(--yellow); }
  
  /* ── SECTION SEPARATOR ── */
  .section-sep {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 20px 0 14px;
  }
  .section-sep span {
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--tx3);
    white-space: nowrap;
  }
  .section-sep::before, .section-sep::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--bdr);
  }
  
  /* ── INFO BANNER ── */
  .banner {
    background: var(--card);
    border: 1px solid var(--bdr);
    border-radius: 6px;
    padding: 10px 14px;
    display: flex;
    align-items: flex-start;
    gap: 9px;
    font-size: 11px;
    line-height: 1.7;
    font-family: 'JetBrains Mono', monospace;
    margin-bottom: 14px;
    color: var(--tx2);
  }
  .banner strong { color: var(--tx1); }
  
  /* ── LOGIN PAGE SPECIFIC ── */
  .login-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
  }
  .login-box {
    background: var(--card);
    border: 1px solid var(--bdr);
    border-radius: 8px;
    padding: 32px 28px;
    width: 100%;
    max-width: 340px;
    box-shadow: 0 8px 32px rgba(0,0,0,.5);
  }
  .login-box h2 { margin-bottom: 24px; }
  .login-box .input-field { margin-bottom: 16px; }
  .login-box button { width: 100%; margin-top: 8px; }
  .login-error {
    margin-top: 12px;
    padding: 8px 12px;
    background: rgba(248,81,73,.1);
    border: 1px solid rgba(248,81,73,.3);
    border-radius: 4px;
    color: var(--red);
    font-size: 12px;
    font-family: 'JetBrains Mono', monospace;
  }
  
  /* ── IMEI EXTRACTOR ── */
  .imei-row {
    display: flex;
    gap: 8px;
    align-items: flex-end;
    margin-top: 10px;
  }
  .imei-row .input-field { flex: 1; margin-bottom: 0; }
  .imei-row button { flex-shrink: 0; height: 37px; padding: 0 14px; background: rgba(227,179,65,.15); border: 1px solid rgba(227,179,65,.4); color: var(--yellow); font-family: 'Rajdhani',sans-serif; font-weight: 700; font-size: 12px; letter-spacing: 1px; text-transform: uppercase; border-radius: 4px; cursor: pointer; transition: .2s; }
  .imei-row button:hover { background: rgba(227,179,65,.25); }
  
  /* ── NOT FOUND / ADD DEVICE ── */
  .not-found-msg {
    padding: 12px 14px;
    background: var(--inp);
    border: 1px solid var(--bdr);
    border-radius: 4px;
    font-size: 12px;
    font-family: 'JetBrains Mono', monospace;
    color: var(--tx2);
    margin-top: 10px;
  }
  .not-found-msg a {
    color: var(--yellow);
    text-decoration: none;
    font-weight: 700;
  }
  .not-found-msg a:hover { color: var(--orange); }
  
  /* ── COLLECTION (Materialize override) ── */
  .collection { border: none !important; margin: 0 !important; }
  .collection .collection-item {
    background: var(--inp) !important;
    border: 1px solid var(--bdr) !important;
    border-radius: 4px !important;
    margin-bottom: 4px !important;
    padding: 0 !important;
  }
  .collection .collection-item a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 9px 13px;
    color: var(--blue) !important;
    font-family: 'JetBrains Mono', monospace !important;
    font-size: 12px !important;
    font-weight: 600 !important;
    text-decoration: none !important;
    transition: .2s;
  }
  .collection .collection-item a:hover { background: rgba(88,166,255,.06) !important; }
  
  /* ── SCROLLBAR ── */
  ::-webkit-scrollbar { width: 6px; height: 6px; }
  ::-webkit-scrollbar-track { background: var(--bg); }
  ::-webkit-scrollbar-thumb { background: var(--bdr); border-radius: 3px; }
  ::-webkit-scrollbar-thumb:hover { background: var(--tx3); }
  
  /* ── ANIMATIONS ── */
  @keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
  .fade-up { animation: fadeUp .4s ease both; }
  
  /* ── RESPONSIVE ── */
  @media (max-width: 600px) {
    .page-wrap { padding: 16px 12px 60px; }
    .top-bar { padding: 8px 12px; }
    .card { padding: 14px 14px; }
  }