:root{
    --bg0:#070A12;
    --bg1:#0B1020;
    --card:#0D1530cc;
    --stroke:#1C2A4A;
    --text:#E7EEFF;
    --muted:#9BB0D6;
    --muted2:#6E86B5;
    --brand:#7C5CFF;
    --brand2:#22D3EE;
    --good:#34D399;
    --warn:#FBBF24;
    --bad:#FB7185;
    --shadow: 0 30px 80px rgba(0,0,0,.55);
    --radius: 18px;
    --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
}
*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
    margin:0;
    font-family:var(--sans);
    color:var(--text);
    background:
    radial-gradient(1200px 600px at 20% 10%, rgba(124,92,255,.25), transparent 55%),
    radial-gradient(900px 500px at 80% 20%, rgba(34,211,238,.18), transparent 60%),
    radial-gradient(700px 500px at 60% 90%, rgba(52,211,153,.10), transparent 55%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
    overflow-x:hidden;
    background-attachment: fixed;
}
.grid{
    position:fixed; inset:0;
    background-image:
    linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
    background-size: 42px 42px;
    mask-image: radial-gradient(600px 600px at 55% 15%, rgba(0,0,0,.85), transparent 70%);
    opacity:.18;
    pointer-events:none;
    transform: translateZ(0);
    animation: drift 18s linear infinite;
}
@keyframes drift{
    0%{ background-position: 0 0, 0 0; }
    100%{ background-position: 180px 90px, 90px 180px; }
}
.wrap{
    max-width:1100px;
    margin:0 auto;
    padding:28px 20px 70px;
    position:relative;
}
header{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    margin-bottom:22px;
}
.brand{
    display:flex; align-items:center; gap:12px;
    text-decoration:none; color:var(--text);
}
.logo{
    width:38px; height:38px;
    border-radius:12px;
    background:
    radial-gradient(16px 16px at 30% 30%, rgba(255,255,255,.25), transparent 55%),
    linear-gradient(135deg, rgba(124,92,255,.95), rgba(34,211,238,.75));
    box-shadow: 0 10px 30px rgba(124,92,255,.25);
    position:relative;
    overflow:hidden;
}
.logo::after{
    content:"";
    position:absolute; inset:-40% -40%;
    background: conic-gradient(from 180deg, transparent, rgba(255,255,255,.25), transparent);
    animation: spin 4.5s linear infinite;
}
@keyframes spin{ to{ transform:rotate(360deg); } }
.brand h1{
    font-size:14px;
    letter-spacing:.22em;
    text-transform:uppercase;
    margin:0;
    color:var(--muted);
}
.chip{
    display:flex; align-items:center; gap:10px;
    padding:10px 12px;
    border:1px solid rgba(255,255,255,.10);
    border-radius:999px;
    background: rgba(13,21,48,.55);
    backdrop-filter: blur(10px);
    box-shadow: 0 12px 30px rgba(0,0,0,.25);
    font-family:var(--mono);
    font-size:12px;
    color:var(--muted);
    user-select:none;
}
.dot{
    width:9px; height:9px; border-radius:50%;
    background: var(--good);
    box-shadow: 0 0 0 6px rgba(52,211,153,.12);
}

.hero{
    display:grid;
    grid-template-columns: 1.15fr .85fr;
    gap:18px;
    align-items:stretch;
}
.card{
    background: rgba(13,21,48,.52);
    border:1px solid rgba(255,255,255,.10);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
    overflow:hidden;
    position:relative;
}
.card::before{
    content:"";
    position:absolute; inset:0;
    background:
    radial-gradient(800px 280px at 25% -10%, rgba(124,92,255,.20), transparent 55%),
    radial-gradient(600px 240px at 90% 0%, rgba(34,211,238,.14), transparent 55%),
    linear-gradient(180deg, rgba(255,255,255,.06), transparent 35%);
    opacity:.9;
    pointer-events:none;
}
.card > *{ position:relative; }
.pad{ padding:22px; }

.kicker{
    display:flex;
    align-items:center;
    gap:10px;
    color:var(--muted);
    font-family:var(--mono);
    font-size:12px;
    flex-wrap:wrap;
}
.pill{
    display:inline-flex; align-items:center; gap:8px;
    padding:6px 10px;
    border-radius:999px;
    border:1px solid rgba(255,255,255,.12);
    background: rgba(7,10,18,.38);
    color:var(--muted);
}

.title{
    margin:14px 0 10px;
    font-size:34px;
    line-height:1.1;
    letter-spacing:-.02em;
}
.subtitle{
    margin:0;
    color:var(--muted);
    font-size:15px;
    line-height:1.6;
    max-width:58ch;
}

.stats{
    display:grid;
    grid-template-columns: repeat(3, minmax(0,1fr));
    gap:10px;
    margin-top:18px;
}
.stat{
    padding:12px 12px;
    border-radius:14px;
    border:1px solid rgba(255,255,255,.10);
    background: rgba(7,10,18,.35);
}
.stat b{ display:block; font-family:var(--mono); font-size:13px; }
.stat span{ color:var(--muted2); font-size:12px; display:block; margin-top:4px; }

.upload{
    display:flex;
    flex-direction:column;
    gap:14px;
    height:100%;
}

.drop{
    flex:1;
    min-height:220px;
    border-radius: var(--radius);
    border:1px dashed rgba(255,255,255,.18);
    background: rgba(7,10,18,.30);
    display:flex;
    align-items:center;
    justify-content:center;
    text-align: center;
    padding:18px;
    transition: .15s ease;
    position:relative;
    overflow:hidden;
}
.drop.dragover{
    border-color: rgba(34,211,238,.65);
    box-shadow: 0 0 0 8px rgba(34,211,238,.12);
    transform: translateY(-1px);
}
.drop-inner {
    display: flex;
    flex-direction: column;
    align-items: center;   /* <-- centers button row */
    gap: 12px;
}

.icon{
    width:44px; height:44px;
    margin:0 auto 10px;
    border-radius:14px;
    display:grid; place-items:center;
    background: linear-gradient(135deg, rgba(124,92,255,.32), rgba(34,211,238,.22));
    border:1px solid rgba(255,255,255,.12);
    box-shadow: 0 14px 28px rgba(0,0,0,.28);
}
.icon svg{ opacity:.9; }

.drop h3{ margin:0 0 6px; font-size:16px; letter-spacing:.01em; }
.drop p{ margin:0; color:var(--muted); font-size:13px; line-height:1.5; }

.row{
    display:flex;
    gap:10px;
    align-items:center;
    justify-content: center;
    flex-wrap:wrap;
}

input[type="file"]{ display:none; }

.btn{
    appearance:none;
    border:0;
    border-radius: 14px;
    padding:11px 14px;
    cursor:pointer;
    color:var(--text);
    background: rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.12);
    backdrop-filter: blur(10px);
    transition: .15s ease;
    display:inline-flex; align-items:center; gap:10px;
    user-select:none;
}
.btn:hover{ transform: translateY(-1px); background: rgba(255,255,255,.11); }
.btn:active{ transform: translateY(0px); }
.btn.primary{
    background: linear-gradient(135deg, rgba(124,92,255,.95), rgba(34,211,238,.85));
    border: 1px solid rgba(255,255,255,.18);
    box-shadow: 0 18px 40px rgba(124,92,255,.18);
}
.btn.primary:hover{
    box-shadow: 0 20px 50px rgba(124,92,255,.22);
    transform: translateY(-1px);
}
.btn:disabled{ opacity:.55; cursor:not-allowed; transform:none !important; }

.btn.ghost{
    background: rgba(7,10,18,.25);
    border:1px solid rgba(255,255,255,.12);
}

.hint{
    color:var(--muted2);
    font-size:12px;
    font-family:var(--mono);
}

/* segmented control */
.seg{
    display:flex;
    border:1px solid rgba(255,255,255,.12);
    background: rgba(7,10,18,.25);
    border-radius: 14px;
    overflow:hidden;
}
.seg button{
    border:0;
    background: transparent;
    color: var(--muted);
    padding:10px 12px;
    cursor:pointer;
    font-family: var(--mono);
    font-size:12px;
    display:flex; align-items:center; gap:8px;
    transition: .15s ease;
}
.seg button:hover{ background: rgba(255,255,255,.06); color: var(--text); }
.seg button.active{
    background: linear-gradient(135deg, rgba(124,92,255,.45), rgba(34,211,238,.22));
    color: var(--text);
}
.seg svg{ opacity:.9; }

.filechip{
    display:none;
    align-items:center;
    gap:10px;
    padding:10px 12px;
    border-radius:14px;
    border:1px solid rgba(255,255,255,.10);
    background: rgba(7,10,18,.35);
    font-family:var(--mono);
    font-size:12px;
    color:var(--muted);
    width:100%;
}
.filechip.show{ display:flex; }
.filemeta{ flex:1; overflow:hidden; }
.filemeta .name{
    color:var(--text);
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
    display:block;
}
.filemeta .sub{ color:var(--muted2); display:block; margin-top:2px; }
.x{
    width:30px; height:30px;
    border-radius:12px;
    border:1px solid rgba(255,255,255,.10);
    background: rgba(255,255,255,.06);
    cursor:pointer;
    display:grid;
    place-items:center;
    transition:.15s ease;
}
.x:hover{ background: rgba(255,255,255,.10); }

.terminal{
    height:100%;
    display:flex;
    flex-direction:column;
    min-height: 430px;
}
.term-top{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:10px;
    padding:14px 16px;
    border-bottom:1px solid rgba(255,255,255,.10);
    background: rgba(7,10,18,.25);
}
.lights{ display:flex; gap:7px; }
.light{ width:10px; height:10px; border-radius:50%; opacity:.9; }
.l1{ background:#FB7185; }
.l2{ background:#FBBF24; }
.l3{ background:#34D399; }

.term-title{
    font-family:var(--mono);
    font-size:12px;
    color:var(--muted);
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
    flex:1;
    margin-left:10px;
}
pre{
    margin:0;
    padding:16px;
    font-family: var(--mono);
    font-size:12.5px;
    line-height:1.55;
    color: #D7E4FF;
    white-space:pre-wrap;
    word-break:break-word;
    flex:1;
    overflow:auto;
    background:
    radial-gradient(900px 280px at 20% 0%, rgba(124,92,255,.10), transparent 50%),
    radial-gradient(700px 260px at 85% 10%, rgba(34,211,238,.08), transparent 55%),
    rgba(7,10,18,.28);
}
.statusbar{
    display:flex;
    align-items:center;
    gap:10px;
    padding:12px 16px;
    border-top:1px solid rgba(255,255,255,.10);
    background: rgba(7,10,18,.22);
    color:var(--muted);
    font-family:var(--mono);
    font-size:12px;
}
.spinner{
    width:14px; height:14px;
    border-radius:50%;
    border:2px solid rgba(255,255,255,.18);
    border-top-color: rgba(34,211,238,.85);
    animation: spin2 .9s linear infinite;
    display:none;
}
@keyframes spin2{ to{ transform: rotate(360deg);} }
.bar{
    height:8px;
    flex:1;
    border-radius:999px;
    background: rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.10);
    overflow:hidden;
    display:none;
}
.bar > i{
    display:block;
    height:100%;
    width:0%;
    background: linear-gradient(90deg, rgba(124,92,255,.9), rgba(34,211,238,.85));
    border-radius:999px;
    transition: width .12s ease;
}

.toast{
    margin-top:14px;
    padding:12px 14px;
    border-radius:14px;
    border:1px solid rgba(255,255,255,.10);
    background: rgba(7,10,18,.35);
    color:var(--muted);
    font-size:13px;
    display:none;
}
.toast.show{ display:block; }
.toast.good{ border-color: rgba(52,211,153,.25); }
.toast.bad{ border-color: rgba(251,113,133,.30); }

/* PDF action box */
.pdfbox{
    margin-top:12px;
    padding:12px;
    border-radius: 16px;
    border:1px solid rgba(255,255,255,.10);
    background: rgba(7,10,18,.30);
    display:none;
    gap:10px;
    align-items:center;
    justify-content:space-between;
    flex-wrap:wrap;
}
.pdfbox.show{ display:flex; }
.pdfmeta{
    font-family: var(--mono);
    font-size:12px;
    color: var(--muted);
}
.pdfmeta b{ color: var(--text); }

footer{
    margin-top:18px;
    color:var(--muted2);
    font-size:12px;
    display:flex;
    justify-content:space-between;
    gap:10px;
    flex-wrap:wrap;
}
footer a{ color:var(--muted); text-decoration:none; }
footer a:hover{ text-decoration:underline; }

@media (max-width: 940px){
    .hero{ grid-template-columns: 1fr; }
    .terminal{ min-height: 360px; }
    .title{ font-size: 30px; }
}