:root {
    --las-bg: #08101a;
    --las-panel: rgba(10, 18, 30, 0.92);
    --las-card: rgba(13, 21, 34, 0.96);
    --las-border: rgba(255, 255, 255, 0.10);
    --las-text: #eef4ff;
    --las-muted: rgba(238, 244, 255, 0.72);
    --las-blue: #163984;
    --las-green: #2db36e;
    --las-amber: #ef9f38;
    --las-red: #cf473d;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
    font-family: "Montserrat", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--las-text);
    background:
        radial-gradient(circle at top left, rgba(22, 57, 132, 0.24), transparent 30%),
        radial-gradient(circle at bottom right, rgba(207, 71, 61, 0.18), transparent 28%),
        var(--las-bg);
}

.las-shell {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 20px 48px;
}

.las-hero,
.las-main-card,
.las-side-card,
.las-preview-card {
    border: 1px solid var(--las-border);
    border-radius: 24px;
    background: var(--las-panel);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
    backdrop-filter: blur(20px);
}

.las-hero { padding: 26px 28px; }
.las-eyebrow {
    margin: 0 0 6px;
    color: #90a7dc;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.las-hero h2,
.las-step h2,
.las-preview-card h2,
.las-side-section h3 {
    margin: 0;
    line-height: 1.15;
}
.las-intro,
.las-help,
.las-status,
.las-file-name,
.las-info-box p { color: var(--las-muted); line-height: 1.55; }

.las-layout {
    display: grid;
    grid-template-columns: 1.7fr 1fr;
    gap: 20px;
    margin-top: 20px;
}
.las-main-card,
.las-side-card,
.las-preview-card { padding: 24px; }
.las-step + .las-step {
    margin-top: 26px;
    padding-top: 26px;
    border-top: 1px solid var(--las-border);
}
.las-step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 88px;
    margin: 0 0 8px;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(144, 167, 220, 0.12);
    color: #9eb3df;
    font-weight: 700;
}
.las-upload {
    display: block;
    padding: 24px;
    border: 2px dashed rgba(144, 167, 220, 0.36);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.02);
    cursor: pointer;
}
.las-upload input { display: none; }
.las-upload-title { display: block; font-size: 1.15rem; font-weight: 700; }
.las-upload-subtitle { display: block; margin-top: 6px; color: var(--las-muted); }
.las-source-links { margin-bottom: 14px; }
.las-source-link,
.filter-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 14px;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 700;
    border: 1px solid rgba(144, 167, 220, 0.24);
    color: var(--las-text);
    background: rgba(22, 57, 132, 0.22);
}
.las-source-link:hover,
.filter-button:hover { color: #fff; }
.las-primary-button,
.las-secondary-button,
.las-ghost-button {
    border: 0;
    border-radius: 16px;
    padding: 14px 18px;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.18s ease, opacity 0.18s ease, box-shadow 0.18s ease;
}
.las-primary-button:hover,
.las-secondary-button:hover,
.las-ghost-button:hover { transform: translateY(-1px); }
.las-primary-button {
    width: 100%;
    margin-top: 8px;
    background: linear-gradient(135deg, var(--las-red), #dd6a50);
    color: #fff;
    box-shadow: 0 12px 28px rgba(207, 71, 61, 0.28);
}
.las-primary-button:disabled,
.las-secondary-button:disabled {
    cursor: not-allowed;
    opacity: 0.45;
    transform: none;
    box-shadow: none;
}
.las-results { margin-top: 18px; }
.las-stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}
.las-stat {
    padding: 14px;
    border: 1px solid var(--las-border);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.03);
}
.las-stat-label { display: block; color: var(--las-muted); font-size: 0.85rem; }
.las-stat strong { display: block; margin-top: 6px; font-size: 1.3rem; }
.las-downloads {
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    gap: 12px;
    margin-top: 18px;
}
.las-secondary-button {
    background: rgba(22, 57, 132, 0.18);
    color: var(--las-text);
    border: 1px solid rgba(144, 167, 220, 0.24);
}
.las-ghost-button {
    background: transparent;
    color: #ffd0cb;
    border: 1px solid rgba(207, 71, 61, 0.35);
}
.las-side-section + .las-side-section {
    margin-top: 22px;
    padding-top: 22px;
    border-top: 1px solid var(--las-border);
}
.las-info-box {
    padding: 16px;
    border-radius: 18px;
    margin-top: 12px;
    border: 1px solid var(--las-border);
}
.info-blue { background: rgba(22, 57, 132, 0.18); }
.info-green { background: rgba(45, 179, 110, 0.16); }
.info-amber { background: rgba(239, 159, 56, 0.14); }
.las-preview-card { margin-top: 20px; }
.las-preview-header { display: flex; justify-content: space-between; gap: 16px; align-items: start; margin-bottom: 16px; }
.las-table-wrap {
    overflow: auto;
    border: 1px solid var(--las-border);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.02);
}
.las-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 760px;
}
.las-table thead th {
    position: sticky;
    top: 0;
    background: rgba(7, 16, 28, 0.96);
    color: #f3f7ff;
    text-align: left;
    padding: 14px 16px;
    font-size: 0.9rem;
}
.las-table tbody td {
    padding: 13px 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--las-text);
}
.las-table tbody tr:nth-child(even) { background: rgba(255, 255, 255, 0.03); }
.las-table tbody tr.is-total td {
    font-weight: 700;
    background: rgba(22, 57, 132, 0.18);
}
.las-table .num { text-align: right; font-variant-numeric: tabular-nums; }
.las-status { margin-top: 12px; }
.las-status.is-error { color: #ffb1a8; }

@media (max-width: 1024px) {
    .las-layout { grid-template-columns: 1fr; }
    .las-stat-grid { grid-template-columns: repeat(2, 1fr); }
    .las-downloads { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
    .las-shell { padding: 18px 14px 40px; }
    .las-hero,
    .las-main-card,
    .las-side-card,
    .las-preview-card { padding: 18px; }
    .las-stat-grid { grid-template-columns: 1fr; }
}