:root {
    --bg: #0f172a;
    --bg-soft: #111827;
    --bg-panel: #111827;
    --accent: #2563eb;
    --accent-soft: rgba(37, 99, 235, 0.13);
    --accent-strong: #f97316;
    --text: #e5e7eb;
    --muted: #9ca3af;
    --danger-soft: #7f1d1d;
    --radius-lg: 18px;
    --radius-xl: 26px;
    --border-soft: #1f2937;
    --font: system-ui, -apple-system, BlinkMacSystemFont, Segoe UI, sans-serif;
    --shadow-soft: 0 16px 40px rgba(15, 23, 42, 0.6);
    --transition-fast: 0.18s ease-out;
    --transition-med: 0.26s ease-out;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    height: 100%;
    background: radial-gradient(circle at top, #111827 0, #020817 55%);
    color: var(--text);
    font-family: var(--font);
}

body {
    display: flex;
    flex-direction: column;
}

/* Banner */

.training-banner {
    background: #111827;
    color: #fbbf24;
    padding: 10px 24px;
    font-weight: 600;
    font-size: 14px;
    text-align: center;
    letter-spacing: 0.06em;
    border-bottom: 1px solid #1f2937;
}

/* Topbar */

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 24px;
    backdrop-filter: blur(10px);
    background: rgba(9, 9, 11, 0.9);
    border-bottom: 1px solid rgba(75, 85, 99, 0.6);
    position: sticky;
    top: 0;
    z-index: 40;
}

.topbar-left,
.topbar-center,
.topbar-right {
    display: flex;
    align-items: center;
    gap: 18px;
}

.brand {
    font-weight: 600;
    font-size: 16px;
    color: var(--accent);
}

.status-item {
    font-size: 13px;
    color: var(--muted);
}

.scenario-status span {
    font-weight: 500;
    color: var(--accent-strong);
}

/* Layout */

.layout {
    display: grid;
    grid-template-columns: minmax(260px, 1.4fr) minmax(260px, 1.6fr);
    gap: 18px;
    padding: 18px 24px 8px;
}

.panel {
    background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.06), transparent) var(--bg-panel);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-soft);
    padding: 16px 18px 18px;
    box-shadow: 0 22px 40px rgba(15, 23, 42, 0.48);
}

.panel-subtitle {
    font-size: 13px;
    color: var(--muted);
    margin-top: 2px;
    margin-bottom: 14px;
}

.panel-wide {
    margin: 4px 24px 20px;
}

h2 {
    font-size: 16px;
    margin: 0;
    font-weight: 600;
}

h3 {
    font-size: 14px;
    margin: 0 0 4px;
    font-weight: 600;
}

/* Scenario cards */

.scenario-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.scenario-card {
    background: rgba(15, 23, 42, 0.98);
    border-radius: 14px;
    padding: 10px 12px 10px;
    border: 1px solid #111827;
    transition: all var(--transition-fast);
}

.scenario-card p {
    margin: 0 0 8px;
    font-size: 12px;
    color: var(--muted);
}

.scenario-card:hover {
    border-color: var(--accent);
    box-shadow: 0 14px 30px rgba(15, 23, 42, 0.8);
    transform: translateY(-1px);
}

/* Trainer form */

.trainer-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 13px;
    color: var(--muted);
}

.form-group span {
    color: var(--text);
    font-size: 13px;
    font-weight: 500;
}

select,
input[type="number"],
input[type="text"] {
    background: #020817;
    color: var(--text);
    border-radius: 10px;
    border: 1px solid #1f2937;
    padding: 6px 8px;
    font-size: 13px;
    outline: none;
    transition: border var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

select:focus,
input[type="number"]:focus,
input[type="text"]:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.35);
}

input[type="range"] {
    width: 100%;
}

.form-row {
    margin-top: 4px;
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.form-inline {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--muted);
}

/* Buttons */

.btn {
    border-radius: 999px;
    padding: 7px 16px;
    border: 1px solid transparent;
    font-size: 13px;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--accent);
    color: #0b1020;
    font-weight: 600;
    box-shadow: 0 10px 22px rgba(37, 99, 235, 0.4);
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 14px 30px rgba(37, 99, 235, 0.35);
}

.btn-primary {
    background: var(--accent);
    color: #020817;
}

.btn-outline {
    background: transparent;
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: none;
}

.btn-outline:hover {
    background: var(--accent-soft);
}

.btn-ghost {
    background: transparent;
    color: var(--muted);
    border-color: rgba(75, 85, 99, 0.7);
    box-shadow: none;
}

.btn-ghost:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.link-btn {
    background: transparent;
    border: none;
    color: var(--accent);
    padding: 0;
    font-size: 13px;
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.link-btn:hover {
    color: var(--accent-strong);
}

/* Badges */

.badge {
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 10px;
    border: 1px solid transparent;
}

.badge-neutral {
    color: var(--muted);
    border-color: var(--muted);
}

.badge-low {
    color: #22c55e;
    border-color: #22c55e;
}

.badge-medium {
    color: #fbbf24;
    border-color: #fbbf24;
}

.badge-high {
    color: #f97316;
    border-color: #f97316;
}

/* Overlay */

.overlay {
    position: fixed;
    inset: 0;
    background: radial-gradient(circle at top, rgba(127, 29, 29, 0.2), rgba(0, 0, 0, 0.98));
    display: none;
    align-items: center;
    justify-content: center;
    padding: 18px;
    z-index: 1000;
}

.overlay[aria-hidden="false"] {
    display: flex;
}

.overlay-content {
    background: #020817;
    border-radius: var(--radius-xl);
    padding: 18px 18px 14px;
    width: min(1120px, 100%);
    max-height: 100%;
    overflow: auto;
    border: 1px solid rgba(148, 27, 12, 0.9);
    box-shadow: var(--shadow-soft);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.overlay-header h1 {
    font-size: 18px;
    color: #f97316;
    margin: 0 0 4px;
}

.overlay-training-label {
    margin: 0;
    color: #22c55e;
    font-size: 12px;
}

.overlay-body {
    display: grid;
    grid-template-columns: minmax(260px, 0.9fr) minmax(320px, 1.3fr);
    gap: 12px;
    margin-top: 4px;
}

.ransom-note {
    background: rgba(15, 23, 42, 0.98);
    border-radius: 16px;
    padding: 10px 10px 8px;
    border: 1px solid #374151;
    font-size: 12px;
    color: var(--text);
}

.ransom-note h2 {
    font-size: 14px;
    margin: 0 0 6px;
    color: #f97316;
}

.ransom-generic {
    color: #f97316;
    font-size: 11px;
}

.mini-list {
    padding-left: 16px;
    font-size: 11px;
    margin: 4px 0 0;
    color: var(--muted);
}

.exit-help {
    background: rgba(15, 23, 42, 0.98);
    border-radius: 16px;
    padding: 8px 10px;
    border: 1px solid #374151;
    font-size: 11px;
    color: var(--muted);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.exit-help h3 {
    font-size: 12px;
    margin: 0 0 2px;
    color: var(--text);
}

.warning-soft {
    color: #22c55e;
    font-size: 10px;
}

.countdown-box {
    margin-top: 2px;
    padding: 4px 6px;
    border-radius: 8px;
    background: rgba(127, 29, 29, 0.3);
    color: #fecaca;
    font-size: 11px;
}

.encryption-visual {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.progress-wrap {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.progress-label {
    font-size: 11px;
    color: var(--muted);
}

.progress-bar-bg {
    width: 100%;
    height: 10px;
    border-radius: 999px;
    background: #111827;
    overflow: hidden;
}

.progress-bar-fill {
    width: 0;
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, #22c55e, #f97316);
    transition: width 0.16s linear;
}

.files-table-wrap {
    background: #020817;
    border-radius: 12px;
    border: 1px solid #111827;
    padding: 6px;
    overflow: auto;
    max-height: 220px;
}

.files-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 10px;
    color: var(--muted);
}

.files-table th,
.files-table td {
    padding: 3px 4px;
    border-bottom: 1px solid #111827;
    text-align: left;
    white-space: nowrap;
}

.files-table tr.encrypted td {
    color: #f97316;
}

.files-table tr.partial td {
    color: #fbbf24;
}

.overlay-footer {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 6px;
    flex-wrap: wrap;
}

.overlay-disclaimer {
    font-size: 10px;
    color: var(--muted);
}

/* Diagnostics & Logs */

.diagnostics {
    font-size: 12px;
    color: var(--muted);
    margin-bottom: 8px;
}

.diagnostics ul {
    padding-left: 18px;
}

.logs-section h3 {
    font-size: 13px;
    margin: 0 0 4px;
}

.logs-box {
    background: #020817;
    border-radius: 10px;
    border: 1px solid #111827;
    padding: 8px;
    font-size: 10px;
    color: var(--muted);
    max-height: 150px;
    overflow-y: auto;
}

.logs-actions {
    margin-top: 4px;
    display: flex;
    gap: 6px;
}

/* Footer */

.page-footer {
    padding: 10px 24px 14px;
    font-size: 10px;
    color: var(--muted);
    text-align: center;
    border-top: 1px solid #111827;
    background: #020817;
}

/* Responsive */

@media (max-width: 900px) {
    .layout {
        grid-template-columns: 1fr;
    }

    .overlay-body {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}