:root {
    color-scheme: dark;
    --bg: #080b12;
    --surface: #10151f;
    --surface-2: #161c28;
    --surface-3: #1c2432;
    --line: #273143;
    --line-soft: #1d2634;
    --text: #f4f7fb;
    --muted: #98a4b7;
    --primary: #7c6cff;
    --primary-2: #a796ff;
    --success: #3dd598;
    --danger: #ff6978;
    --warning: #f6bd60;
    --shadow: 0 24px 70px rgba(0, 0, 0, .32);
    --radius: 16px;
}

* { box-sizing: border-box; }
html { min-height: 100%; background: var(--bg); }
body {
    min-height: 100vh;
    margin: 0;
    background:
        radial-gradient(circle at 85% 0%, rgba(124, 108, 255, .1), transparent 30%),
        var(--bg);
    color: var(--text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.5;
}
a { color: var(--primary-2); text-decoration: none; }
a:hover { color: #c0b6ff; }
button, input, select { font: inherit; }
button, a, input, select { transition: border-color .18s ease, background .18s ease, color .18s ease, transform .18s ease; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible {
    outline: 3px solid rgba(124, 108, 255, .35);
    outline-offset: 2px;
}
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 9px; font-size: clamp(1.85rem, 3vw, 2.55rem); line-height: 1.12; letter-spacing: 0; }
h2 { margin-bottom: 10px; font-size: 1.05rem; }

.app-shell { display: grid; grid-template-columns: 260px minmax(0, 1fr); min-height: 100vh; }
.sidebar {
    position: sticky; top: 0; height: 100vh; padding: 25px 18px;
    border-right: 1px solid var(--line-soft); background: rgba(11, 15, 23, .92);
    backdrop-filter: blur(18px); display: flex; flex-direction: column; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 11px; color: var(--text); font-weight: 750; letter-spacing: 0; }
.brand:hover { color: var(--text); }
.brand-mark {
    display: grid; place-items: center; width: 35px; height: 35px; border-radius: 11px;
    background: linear-gradient(135deg, var(--primary), #5948d9); box-shadow: 0 8px 25px rgba(124, 108, 255, .28);
}
.nav { display: grid; gap: 6px; margin-top: 42px; }
.nav a { display: flex; align-items: center; gap: 12px; padding: 11px 13px; border-radius: 10px; color: var(--muted); font-size: .92rem; }
.nav a:hover { color: var(--text); background: var(--surface-2); }
.nav a.active { color: var(--text); background: rgba(124, 108, 255, .14); box-shadow: inset 3px 0 var(--primary); }
.nav a span { width: 18px; text-align: center; color: var(--primary-2); }
.phase-card { margin-top: auto; padding: 16px; border: 1px solid var(--line); border-radius: 13px; background: linear-gradient(145deg, rgba(124,108,255,.12), rgba(16,21,31,.8)); }
.phase-card strong { display: block; margin-top: 5px; }
.phase-card p { margin: 2px 0 0; color: var(--muted); font-size: .78rem; }
.main-column { min-width: 0; }
.topbar { height: 73px; padding: 0 32px; border-bottom: 1px solid var(--line-soft); display: flex; align-items: center; justify-content: flex-end; background: rgba(8,11,18,.7); backdrop-filter: blur(15px); }
.topbar-user { display: flex; align-items: center; gap: 11px; }
.avatar { display: grid; place-items: center; width: 36px; height: 36px; border: 1px solid #453d78; border-radius: 11px; background: #251f47; color: #cabfff; font-weight: 800; }
.user-copy { display: grid; margin-right: 5px; }
.user-copy strong { font-size: .83rem; }
.user-copy small { color: var(--muted); font-size: .7rem; }
.menu-button { display: none; background: none; border: 0; color: var(--text); font-size: 1.35rem; cursor: pointer; }
.content { width: min(1280px, 100%); margin: 0 auto; padding: 44px 38px 76px; }
.content > .alert { margin-bottom: 24px; }
.content > section + section { margin-top: 24px; }
.content > section.status-banner + section { margin-top: 0; }
.page-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 28px; margin-bottom: 30px; }
.action-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
.action-hint { flex-basis: 100%; color: var(--warning); font-size: .72rem; font-weight: 700; text-align: right; }
.inline-form { display: flex; align-items: center; gap: 8px; }
.inline-form select { min-width: 240px; }
.page-header p, .section-heading p { max-width: 720px; margin-bottom: 0; color: var(--muted); }
.eyebrow { color: var(--primary-2); font-size: .69rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.status-banner, .health-summary {
    display: flex; align-items: center; gap: 15px; padding: 18px 20px; margin-bottom: 22px;
    border: 1px solid rgba(61,213,152,.25); border-radius: var(--radius); background: rgba(61,213,152,.07);
}
.status-icon, .health-summary > span { display: grid; place-items: center; flex: 0 0 38px; height: 38px; border-radius: 50%; background: rgba(61,213,152,.14); color: var(--success); font-weight: 900; }
.status-banner p, .health-summary p { margin: 2px 0 0; color: var(--muted); font-size: .85rem; }
.status-banner.warning { border-color: rgba(246,189,96,.25); background: rgba(246,189,96,.07); }
.status-banner.warning .status-icon { background: rgba(246,189,96,.14); color: var(--warning); }
.analysis-readiness { align-items: flex-start; }
.analysis-readiness strong { display: block; padding-top: 1px; }
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-bottom: 22px; }
.card, .panel {
    border: 1px solid var(--line-soft); border-radius: var(--radius); background: linear-gradient(145deg, rgba(22,28,40,.95), rgba(13,18,27,.95));
    box-shadow: 0 15px 40px rgba(0,0,0,.12);
}
.card { min-height: 240px; padding: 22px; }
.card p { color: var(--muted); font-size: .87rem; }
.card > a { display: inline-block; margin-top: 9px; font-size: .83rem; font-weight: 700; }
.card-icon { display: grid; place-items: center; width: 38px; height: 38px; margin-bottom: 28px; border-radius: 11px; background: rgba(124,108,255,.12); color: var(--primary-2); font-weight: 900; }
.panel { padding: 24px; }
.form-panel, .panel.empty-state { padding: 28px; }
.panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 18px; }
.panel-heading h2 { margin: 0; }
.details { margin: 18px 0 4px; }
.details div, .system-meta div { display: flex; justify-content: space-between; gap: 20px; padding: 9px 0; border-bottom: 1px solid var(--line-soft); }
.details dt, .system-meta dt { color: var(--muted); font-size: .78rem; }
.details dd, .system-meta dd { margin: 0; font-size: .8rem; font-weight: 700; text-align: right; }
.badge { display: inline-flex; padding: 4px 9px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: .68rem; font-weight: 750; }
.badge-success { border-color: rgba(61,213,152,.26); background: rgba(61,213,152,.09); color: var(--success); }
.capability-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 22px; }
.capability-list div { display: flex; align-items: center; gap: 10px; padding: 11px 12px; border-radius: 10px; background: rgba(8,11,18,.4); color: #d6dce7; font-size: .84rem; }
.capability-list span { color: var(--success); }
.muted-note { margin: 18px 0 0; color: var(--muted); font-size: .78rem; }

.guest-body { display: grid; min-height: 100vh; place-items: center; padding: 36px 18px; }
.guest-shell { width: min(880px, 100%); }
.guest-brand { width: max-content; margin: 0 auto 22px; }
.auth-card, .install-card, .error-card { border: 1px solid var(--line); border-radius: 20px; background: rgba(16,21,31,.96); box-shadow: var(--shadow); }
.auth-card { width: min(460px, 100%); margin: auto; padding: 35px; }
.install-card { padding: 34px; }
.error-card { width: min(520px, 100%); margin: auto; padding: 45px; text-align: center; }
.error-code { display: block; margin-bottom: 10px; color: var(--primary-2); font-size: 3.4rem; font-weight: 900; letter-spacing: 0; }
.error-card p { color: var(--muted); }
.debug-error { overflow: auto; padding: 12px; border-radius: 8px; background: #07090e; color: var(--danger); text-align: left; }
.requirements { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin: 25px 0; }
.requirement { display: flex; align-items: center; gap: 9px; padding: 9px 11px; border-radius: 9px; background: var(--surface-2); color: var(--muted); font-size: .78rem; }
.requirement span:first-child { font-weight: 900; }
.requirement.passed span:first-child { color: var(--success); }
.requirement.failed span:first-child { color: var(--danger); }
.stacked-form { display: grid; gap: 18px; }
fieldset { min-width: 0; margin: 0; padding: 20px; border: 1px solid var(--line); border-radius: 13px; }
legend { padding: 0 8px; color: #dce2ec; font-size: .84rem; font-weight: 800; }
.field-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 17px; }
.field { display: grid; gap: 7px; color: #ced5e1; font-size: .8rem; font-weight: 700; }
.field-wide { grid-column: 1 / -1; }
.field em { margin-left: 5px; color: var(--muted); font-size: .68rem; font-style: normal; font-weight: 500; }
.field small { color: var(--muted); font-size: .68rem; font-weight: 500; }
input, select {
    width: 100%; min-height: 43px; padding: 9px 11px; border: 1px solid var(--line); border-radius: 9px;
    background: #0c111a; color: var(--text);
}
input:hover, select:hover { border-color: #3c4860; }
input:focus, select:focus { border-color: var(--primary); outline: 0; box-shadow: 0 0 0 3px rgba(124,108,255,.12); }
.checkbox-field { display: flex; align-items: center; gap: 10px; }
.checkbox-field input { width: 18px; min-height: 18px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 40px; padding: 9px 15px; border: 1px solid transparent; border-radius: 9px; cursor: pointer; font-weight: 750; font-size: .8rem; }
.button:hover { transform: translateY(-1px); }
.button:disabled {
    cursor: not-allowed;
    opacity: .55;
    box-shadow: none;
    transform: none;
}
.button:disabled:hover { transform: none; }
.button-primary { background: linear-gradient(135deg, var(--primary), #6553e8); color: white; box-shadow: 0 8px 25px rgba(124,108,255,.2); }
.button-primary:hover { color: white; background: linear-gradient(135deg, #8a7cff, #705ff2); }
.button-secondary { border-color: var(--line); background: var(--surface-2); color: var(--text); }
.button-secondary:hover, .button-ghost:hover { color: var(--text); background: var(--surface-3); }
.button-ghost { border-color: var(--line-soft); background: transparent; color: var(--muted); }
.button-small { min-height: 32px; padding: 5px 10px; font-size: .7rem; }
.button-large { min-height: 47px; }
.alert { padding: 13px 15px; margin-bottom: 18px; border: 1px solid; border-radius: 10px; font-size: .82rem; white-space: pre-wrap; }
.alert-success { border-color: rgba(61,213,152,.25); background: rgba(61,213,152,.08); color: #8ce8c1; }
.alert-error { border-color: rgba(255,105,120,.28); background: rgba(255,105,120,.08); color: #ff9ca6; }
.two-column { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(300px, .9fr); gap: 20px; }
.security-list { display: grid; gap: 6px; }
.security-list > div { display: flex; align-items: flex-start; gap: 11px; padding: 11px; border-bottom: 1px solid var(--line-soft); }
.security-list strong, .security-list small { display: block; }
.security-list strong { font-size: .8rem; }
.security-list small { margin-top: 2px; color: var(--muted); font-size: .7rem; }
.status-dot { flex: 0 0 8px; height: 8px; margin-top: 6px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 4px rgba(61,213,152,.1); }
.warning-dot { background: var(--warning); box-shadow: 0 0 0 4px rgba(246,189,96,.1); }
.health-summary.warning { border-color: rgba(246,189,96,.25); background: rgba(246,189,96,.07); }
.health-summary.warning > span { background: rgba(246,189,96,.14); color: var(--warning); }
.check-list { border: 1px solid var(--line-soft); border-radius: 12px; overflow: hidden; }
.check-row { display: grid; grid-template-columns: 28px minmax(0, 1fr) auto; align-items: center; gap: 10px; padding: 13px 15px; border-bottom: 1px solid var(--line-soft); font-size: .82rem; }
.check-row:last-child { border-bottom: 0; }
.check-row strong { color: var(--muted); font-size: .7rem; }
.check-state { display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; font-weight: 900; }
.check-state.passed { background: rgba(61,213,152,.1); color: var(--success); }
.check-state.failed { background: rgba(255,105,120,.1); color: var(--danger); }
.system-meta { margin: 20px 0 0; }
.metric-grid, .diagnostic-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; margin-bottom: 22px; }
.diagnostic-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); margin-bottom: 0; }
.metric-card {
    min-width: 0; padding: 18px; border: 1px solid var(--line-soft); border-radius: 12px;
    background: linear-gradient(145deg, rgba(22,28,40,.95), rgba(13,18,27,.95));
}
.metric-card span, .metric-card small { display: block; color: var(--muted); font-size: .72rem; }
.metric-card strong { display: block; margin: 5px 0 3px; overflow-wrap: anywhere; font-size: clamp(1.05rem, 2vw, 1.55rem); line-height: 1.15; }
.compact-title { margin: 0 0 10px; font-size: 1rem; }
.compact-list { display: grid; gap: 8px; }
.compact-list a {
    display: flex; justify-content: space-between; gap: 14px; padding: 11px 12px;
    border: 1px solid var(--line-soft); border-radius: 10px; background: rgba(8,11,18,.35);
}
.compact-list span { color: var(--text); overflow-wrap: anywhere; }
.compact-list strong { color: var(--muted); white-space: nowrap; font-size: .76rem; }
.empty-state { display: grid; justify-items: start; gap: 12px; }
.empty-state p { max-width: 640px; color: var(--muted); }
.empty-icon {
    display: grid; place-items: center; width: 46px; height: 46px; border-radius: 12px;
    background: rgba(124,108,255,.12); color: var(--primary-2); font-weight: 900;
}
.table-wrap { width: 100%; overflow-x: auto; border-radius: 12px; }
.data-table { width: 100%; min-width: 1100px; border-collapse: collapse; font-size: .8rem; }
.data-table th, .data-table td { padding: 12px 10px; border-bottom: 1px solid var(--line-soft); text-align: right; white-space: nowrap; }
.data-table th:first-child, .data-table td:first-child { text-align: left; white-space: normal; min-width: 240px; }
.data-table th { color: var(--muted); font-size: .68rem; text-transform: uppercase; }
.data-table tbody tr:hover { background: rgba(124,108,255,.06); }
.table-actions { display: flex; align-items: center; justify-content: flex-end; gap: 8px; flex-wrap: wrap; }
.table-actions form { display: inline-flex; }
.recommendation-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.recommendation-card { padding: 16px; border: 1px solid var(--line-soft); border-radius: 12px; background: rgba(8,11,18,.35); }
.recommendation-card h3 { margin: 11px 0 7px; font-size: .95rem; }
.recommendation-card p { margin: 0; color: var(--muted); font-size: .78rem; }
.ai-report { padding: 18px; border: 1px solid var(--line-soft); border-radius: 12px; background: rgba(8,11,18,.35); color: #d6dce7; font-size: .88rem; line-height: 1.7; white-space: normal; }
.processing-overlay, .confirm-backdrop {
    position: fixed; inset: 0; z-index: 100;
    display: none; place-items: center; padding: 22px;
    background: rgba(5, 7, 12, .72); backdrop-filter: blur(14px);
}
.processing-overlay.open, .confirm-backdrop.open { display: grid; }
.processing-card, .confirm-card {
    width: min(460px, 100%); padding: 26px; border: 1px solid var(--line);
    border-radius: 18px; background: linear-gradient(145deg, rgba(22,28,40,.98), rgba(10,14,22,.98));
    box-shadow: var(--shadow);
}
.processing-card { display: grid; justify-items: start; gap: 10px; }
.processing-card h2, .confirm-card h2 { margin: 0; font-size: 1.15rem; }
.processing-card p, .confirm-card p { margin: 0; color: var(--muted); font-size: .84rem; }
.processing-orbit {
    width: 42px; height: 42px; border-radius: 50%;
    border: 3px solid rgba(124,108,255,.18); border-top-color: var(--primary-2);
    animation: spin .9s linear infinite;
}
.progress-track { width: 100%; height: 8px; margin-top: 8px; overflow: hidden; border-radius: 999px; background: rgba(8,11,18,.8); border: 1px solid var(--line-soft); }
.progress-track span {
    display: block; width: 42%; height: 100%; border-radius: inherit;
    background: linear-gradient(90deg, var(--primary), var(--success));
    animation: progress-slide 1.35s ease-in-out infinite;
}
.confirm-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 22px; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes progress-slide {
    0% { transform: translateX(-110%); }
    50% { transform: translateX(60%); }
    100% { transform: translateX(250%); }
}

@media (max-width: 900px) {
    .app-shell { grid-template-columns: 1fr; }
    .sidebar { position: fixed; left: -280px; width: 260px; box-shadow: var(--shadow); transition: left .22s ease; }
    .sidebar.open { left: 0; }
    .topbar { justify-content: space-between; padding: 0 20px; }
    .menu-button { display: block; }
    .content { padding: 28px 20px 55px; }
    .card-grid { grid-template-columns: 1fr; }
    .metric-grid, .diagnostic-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .recommendation-grid { grid-template-columns: 1fr; }
    .card { min-height: auto; }
}
@media (max-width: 680px) {
    .page-header { display: grid; }
    .field-grid, .requirements, .capability-list, .two-column { grid-template-columns: 1fr; }
    .field-wide { grid-column: auto; }
    .install-card, .auth-card { padding: 24px 19px; }
    .metric-grid, .diagnostic-grid { grid-template-columns: 1fr; }
    .action-hint { text-align: left; }
    fieldset { padding: 15px; }
    .user-copy { display: none; }
}