@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* ===== VARIABLES ===== */
:root {
    --hk-bg:           #f0f2f5;
    --hk-surface:      #ffffff;
    --hk-elevated:     #f8f9fb;
    --hk-overlay:      #f1f3f7;
    --hk-border:       #e2e8f0;
    --hk-border-glow:  #c7d2e8;

    --hk-primary:      #4f63d2;
    --hk-primary-dim:  #3b4fbf;
    --hk-primary-muted: rgba(79, 99, 210, 0.08);
    --hk-primary-soft:  rgba(79, 99, 210, 0.14);
    --hk-cyan:         #0891b2;
    --hk-yellow:       #d97706;

    --hk-text:         #1e293b;
    --hk-text-muted:   #64748b;
    --hk-text-dim:     #94a3b8;

    --hk-critical:     #dc2626;
    --hk-high:         #ea580c;
    --hk-medium:       #d97706;
    --hk-low:          #0891b2;
    --hk-info-sev:     #64748b;
    --hk-success:      #16a34a;
    --hk-danger:       #dc2626;
    --hk-warning:      #d97706;

    --hk-shadow:       0 1px 4px rgba(0, 0, 0, 0.07), 0 4px 12px rgba(0, 0, 0, 0.05);
    --hk-glow-primary: 0 0 0 3px rgba(79, 99, 210, 0.12);
    --hk-glow-cyan:    0 0 0 3px rgba(8, 145, 178, 0.12);

    --font-mono:       'SFMono-Regular', 'Consolas', 'Liberation Mono', monospace;
    --font-body:       'Inter', sans-serif;

    --sidebar-w:       60px;
    --sidebar-w-open:  240px;
    --topbar-h:        64px;
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    background-color: var(--hk-bg);
    font-family: var(--font-body);
    color: var(--hk-text);
    font-size: 0.875rem;
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ===== TOPBAR ===== */
.topbar {
    height: var(--topbar-h);
    background: var(--hk-surface);
    border-bottom: 1px solid var(--hk-border);
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1001;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.brand-wrap {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-icon {
    width: 34px;
    height: 34px;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    background: var(--hk-primary);
    border-radius: 8px;
    font-size: 1rem;
    flex-shrink: 0;
}

.brand-text {
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--hk-text);
    letter-spacing: -0.01em;
}

.brand-text .accent { color: var(--hk-primary); }

.topbar-status {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.2rem 0.65rem;
    border: 1px solid var(--hk-border);
    border-radius: 6px;
    font-size: 0.72rem;
    color: var(--hk-text-muted);
    background: var(--hk-elevated);
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--hk-success);
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.5; }
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.topbar-clock {
    font-size: 0.78rem;
    color: var(--hk-text-muted);
}

.topbar-user {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--hk-primary);
    padding: 0.3rem 0.75rem;
    border: 1px solid var(--hk-border);
    border-radius: 6px;
    background: var(--hk-primary-muted);
}

/* ===== SIDEBAR ===== */
.sidebar {
    width: var(--sidebar-w);
    background: var(--hk-surface);
    height: calc(100vh - var(--topbar-h));
    position: fixed;
    top: var(--topbar-h);
    left: 0;
    border-right: 1px solid var(--hk-border);
    z-index: 1000;
    overflow: hidden;
    transition: width 0.22s ease, box-shadow 0.22s ease;
}

.sidebar:hover {
    width: var(--sidebar-w-open);
    box-shadow: 4px 0 16px rgba(0, 0, 0, 0.08);
}

.sidebar-inner {
    width: var(--sidebar-w-open);
    height: 100%;
    display: flex;
    flex-direction: column;
    padding: 0.75rem 0;
}

.sidebar-section-label {
    font-size: 0.62rem;
    color: var(--hk-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.6rem 0 0.3rem 1.35rem;
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.15s;
    font-weight: 600;
}

.sidebar:hover .sidebar-section-label { opacity: 1; }

.sidebar .nav-link {
    display: flex;
    align-items: center;
    height: 44px;
    padding: 0 0 0 1.1rem;
    color: var(--hk-text-muted);
    text-decoration: none;
    transition: color 0.15s, background 0.15s;
    white-space: nowrap;
    position: relative;
    border-radius: 0;
}

.sidebar .nav-link:hover {
    color: var(--hk-primary);
    background: var(--hk-primary-muted);
}

.sidebar .nav-link.active {
    color: var(--hk-primary);
    background: var(--hk-primary-muted);
}

.sidebar .nav-link.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background: var(--hk-primary);
    border-radius: 0 2px 2px 0;
}

.sidebar .nav-link i {
    font-size: 1.05rem;
    flex-shrink: 0;
    width: 38px;
    text-align: center;
}

.sidebar .nav-label {
    font-size: 0.83rem;
    font-weight: 500;
    opacity: 0;
    transform: translateX(-6px);
    transition: opacity 0.15s, transform 0.15s;
}

.sidebar:hover .nav-label {
    opacity: 1;
    transform: translateX(0);
}

.sidebar-divider {
    height: 1px;
    background: var(--hk-border);
    margin: 0.4rem 1rem;
}

/* ===== CONTENT ===== */
.content-wrapper {
    margin-left: var(--sidebar-w);
    margin-top: var(--topbar-h);
    padding: 1.75rem 1.5rem;
    min-height: calc(100vh - var(--topbar-h));
}

/* ===== PAGE HEADER ===== */
.page-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.75rem;
}

.page-prompt {
    font-size: 0.8rem;
    color: var(--hk-text-dim);
}

.page-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--hk-text);
    letter-spacing: -0.02em;
    margin: 0;
}

.page-title-accent { color: var(--hk-primary); }

.cursor-blink { display: none; }

/* ===== STAT CARDS ===== */
.stat-card {
    background: var(--hk-surface);
    border: 1px solid var(--hk-border);
    border-radius: 10px;
    padding: 1.25rem;
    position: relative;
    overflow: hidden;
    transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
    box-shadow: var(--hk-shadow);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--stat-accent, var(--hk-primary));
    border-radius: 10px 10px 0 0;
}

.stat-card:hover {
    border-color: var(--hk-border-glow);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.stat-card-label {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--hk-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.75rem;
}

.stat-card-value {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--stat-accent, var(--hk-primary));
    line-height: 1;
    letter-spacing: -0.03em;
}

.stat-card-sub {
    font-size: 0.75rem;
    color: var(--hk-text-muted);
    margin-top: 0.5rem;
}

.stat-card-icon {
    position: absolute;
    bottom: 0.75rem;
    right: 1rem;
    font-size: 2.75rem;
    opacity: 0.06;
    color: var(--stat-accent, var(--hk-primary));
}

/* ===== CARDS ===== */
.card {
    background: var(--hk-surface);
    border: 1px solid var(--hk-border);
    border-radius: 10px;
    box-shadow: var(--hk-shadow);
    transition: border-color 0.2s;
}

.card:hover { border-color: var(--hk-border-glow); }

.card-header {
    background: var(--hk-surface);
    border-bottom: 1px solid var(--hk-border);
    padding: 0.85rem 1.25rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--hk-text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-radius: 10px 10px 0 0;
}

.card-header::before { display: none; }

.card-body { padding: 1.25rem; }

/* ===== TABLES ===== */
.table {
    color: var(--hk-text);
    border-color: var(--hk-border);
    font-size: 0.83rem;
    margin: 0;
}

.table > thead > tr > th {
    background: var(--hk-elevated);
    color: var(--hk-text-muted);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.65rem 1rem;
    border-bottom: 1px solid var(--hk-border);
    white-space: nowrap;
    font-weight: 600;
}

.table > tbody > tr > td {
    padding: 0.65rem 1rem;
    border-bottom: 1px solid var(--hk-border);
    vertical-align: middle;
    background: transparent;
}

.table > tbody > tr:last-child > td { border-bottom: none; }

.table > tbody > tr:hover > td { background: var(--hk-elevated); }

.table-responsive {
    scrollbar-width: thin;
    scrollbar-color: var(--hk-border) transparent;
}

/* ===== SEVERITY BADGES ===== */
.badge-severity {
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    padding: 0.25em 0.6em;
    border-radius: 4px;
    text-transform: uppercase;
    border: 1px solid;
    white-space: nowrap;
}

.badge-critical { background: #fef2f2; color: #b91c1c; border-color: #fecaca; }
.badge-high     { background: #fff7ed; color: #c2410c; border-color: #fed7aa; }
.badge-medium   { background: #fffbeb; color: #b45309; border-color: #fde68a; }
.badge-low      { background: #eff6ff; color: #1d4ed8; border-color: #bfdbfe; }
.badge-info-sev { background: #f8fafc; color: #475569; border-color: #e2e8f0; }

/* ===== STATUS BADGES ===== */
.badge-status {
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    padding: 0.25em 0.6em;
    border-radius: 4px;
    text-transform: uppercase;
    border: 1px solid;
    white-space: nowrap;
}

.badge-pending     { background: #f8fafc; color: #475569;            border-color: #e2e8f0; }
.badge-running     { background: #ecfeff; color: #0e7490;            border-color: #a5f3fc; }
.badge-completed   { background: #f0fdf4; color: #15803d;            border-color: #bbf7d0; }
.badge-failed      { background: #fef2f2; color: #b91c1c;            border-color: #fecaca; }
.badge-in-progress { background: #fffbeb; color: #b45309;            border-color: #fde68a; }

/* ===== SEVERITY BARS ===== */
.severity-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.65rem;
}

.severity-label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    width: 62px;
    flex-shrink: 0;
    color: var(--hk-text-muted);
}

.severity-bar-wrap {
    flex: 1;
    height: 6px;
    background: var(--hk-elevated);
    border-radius: 3px;
    overflow: hidden;
}

.severity-bar {
    height: 100%;
    border-radius: 3px;
    transition: width 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.severity-count {
    font-size: 0.75rem;
    font-weight: 600;
    width: 24px;
    text-align: right;
    flex-shrink: 0;
    color: var(--hk-text-muted);
}

/* ===== BUTTONS ===== */
.btn-iv-primary {
    background: var(--hk-primary);
    border: 1px solid var(--hk-primary);
    color: #ffffff;
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 6px;
}

.btn-iv-primary:hover {
    background: var(--hk-primary-dim);
    border-color: var(--hk-primary-dim);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(79, 99, 210, 0.3);
}

/* ===== UTILITIES ===== */
.font-mono { font-family: var(--font-mono) !important; }
.text-primary-hk { color: var(--hk-primary) !important; }
.text-cyan-hk    { color: var(--hk-cyan) !important; }
.text-muted-hk   { color: var(--hk-text-muted) !important; }
.text-dim-hk     { color: var(--hk-text-dim) !important; }

/* ===== BOOTSTRAP OVERRIDES ===== */
.modal-content {
    background: var(--hk-surface);
    border: 1px solid var(--hk-border);
    border-radius: 10px;
    color: var(--hk-text);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.modal-header {
    border-bottom: 1px solid var(--hk-border);
    background: var(--hk-elevated);
    font-weight: 600;
    border-radius: 10px 10px 0 0;
}

.modal-footer {
    border-top: 1px solid var(--hk-border);
    background: var(--hk-elevated);
    border-radius: 0 0 10px 10px;
}

.btn-close { filter: none; }

.form-control, .form-select {
    background: var(--hk-surface);
    border: 1px solid var(--hk-border);
    color: var(--hk-text);
    font-size: 0.875rem;
    border-radius: 6px;
}

.form-control:focus, .form-select:focus {
    background: var(--hk-surface);
    border-color: var(--hk-primary);
    color: var(--hk-text);
    box-shadow: 0 0 0 3px rgba(79, 99, 210, 0.12);
}

.form-control::placeholder { color: var(--hk-text-dim); }

.form-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--hk-text);
    margin-bottom: 0.35rem;
}

.dropdown-menu {
    background: var(--hk-surface);
    border: 1px solid var(--hk-border);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.dropdown-item { color: var(--hk-text); font-size: 0.83rem; border-radius: 4px; }
.dropdown-item:hover { background: var(--hk-primary-muted); color: var(--hk-primary); }
.dropdown-divider { border-color: var(--hk-border); }

.alert {
    border-radius: 8px;
    font-size: 0.83rem;
    border-left: 3px solid;
}

/* ===== LOGIN ===== */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--hk-bg);
}

.login-card {
    width: 100%;
    max-width: 400px;
    background: var(--hk-surface);
    border: 1px solid var(--hk-border);
    border-radius: 12px;
    padding: 2.5rem 2rem;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--hk-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--hk-text-dim); }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .sidebar { width: 0; border-right: none; }
    .sidebar:hover {
        width: var(--sidebar-w-open);
        border-right: 1px solid var(--hk-border);
        box-shadow: 4px 0 20px rgba(0, 0, 0, 0.1);
    }
    .content-wrapper { margin-left: 0; }
    .stat-card-value { font-size: 1.8rem; }
    .topbar-status { display: none !important; }
}

/* ===== DATATABLES ===== */

/* Container */
.dt-container { color: var(--hk-text); }

/* Top/bottom control rows */
.dt-layout-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 0.75rem 0;
}

/* Length dropdown */
.dt-length label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--hk-text-muted);
    white-space: nowrap;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.dt-length select {
    background: var(--hk-surface);
    border: 1px solid var(--hk-border);
    color: var(--hk-text);
    font-size: 0.78rem;
    border-radius: 6px;
    padding: 0.25rem 0.6rem;
    font-family: var(--font-mono);
}

.dt-length select:focus {
    border-color: var(--hk-primary);
    box-shadow: var(--hk-glow-primary);
    outline: none;
}

/* Search input */
.dt-search {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dt-search label {
    font-size: 0.75rem;
    color: var(--hk-text-muted);
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
}

.dt-search input[type="search"] {
    background: var(--hk-surface);
    border: 1px solid var(--hk-border);
    color: var(--hk-text);
    font-size: 0.78rem;
    border-radius: 6px;
    padding: 0.3rem 0.75rem;
    font-family: var(--font-mono);
    min-width: 200px;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.dt-search input[type="search"]:focus {
    border-color: var(--hk-primary);
    box-shadow: var(--hk-glow-primary);
    outline: none;
}

.dt-search input[type="search"]::placeholder {
    color: var(--hk-text-dim);
}

/* Info text */
.dt-info {
    font-size: 0.72rem;
    color: var(--hk-text-muted);
    font-family: var(--font-mono);
    letter-spacing: 0.03em;
}

/* Pagination */
.dt-paging .pagination {
    margin: 0;
    gap: 0.2rem;
    flex-wrap: wrap;
}

.dt-paging .page-item .page-link {
    background: var(--hk-surface);
    border: 1px solid var(--hk-border);
    color: var(--hk-text-muted);
    font-size: 0.72rem;
    font-family: var(--font-mono);
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    line-height: 1.4;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.dt-paging .page-item .page-link:hover {
    background: var(--hk-primary-muted);
    border-color: var(--hk-primary-soft);
    color: var(--hk-primary);
}

.dt-paging .page-item.active .page-link {
    background: var(--hk-primary);
    border-color: var(--hk-primary);
    color: #ffffff;
    font-weight: 600;
}

.dt-paging .page-item.disabled .page-link {
    background: var(--hk-elevated);
    border-color: var(--hk-border);
    color: var(--hk-text-dim);
    pointer-events: none;
}

/* Processing indicator */
.dt-processing {
    background: var(--hk-surface);
    border: 1px solid var(--hk-border);
    color: var(--hk-primary);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    border-radius: 6px;
    padding: 0.4rem 0.9rem;
    box-shadow: var(--hk-shadow);
}

/* Column sort arrows */
table.dataTable thead > tr > th.dt-orderable-asc,
table.dataTable thead > tr > th.dt-orderable-desc {
    cursor: pointer;
    user-select: none;
}

table.dataTable thead > tr > th.dt-ordering-asc span.dt-column-order::before,
table.dataTable thead > tr > th.dt-ordering-desc span.dt-column-order::after {
    color: var(--hk-primary);
    opacity: 1;
}

/* Responsive */
@media (max-width: 768px) {
    .dt-layout-row { flex-direction: column; align-items: flex-start; }
    .dt-search input[type="search"] { min-width: 140px; width: 100%; }
    .dt-length label { font-size: 0.7rem; }
    .dt-paging .page-item .page-link { padding: 0.2rem 0.45rem; font-size: 0.68rem; }
}

/* ===== SECONDARY BUTTON ===== */
.btn-iv-secondary {
    background: transparent;
    border: 1px solid var(--hk-border);
    color: var(--hk-text-muted);
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 6px;
}

.btn-iv-secondary:hover {
    border-color: var(--hk-primary);
    color: var(--hk-primary);
}

/* ===== ACTION BUTTON (inline icon buttons in tables) ===== */
.btn-action {
    padding: 4px 8px;
    font-size: 14px;
    color: var(--hk-text-muted);
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 4px;
    transition: color 0.15s;
}

.btn-action:hover { color: var(--hk-primary); }

/* ===== LOADING SPINNER ===== */
.spinner-hk {
    display: inline-block;
    width: 12px;
    height: 12px;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    vertical-align: middle;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ===== ROW ANIMATIONS ===== */
@keyframes rowFadeIn {
    from { opacity: 0; background: var(--hk-primary-muted); }
    to   { opacity: 1; background: transparent; }
}

/* ===== RESPONSIVE — TABLET ===== */
@media (max-width: 992px) {
    .content-wrapper { padding: 1.25rem 1rem; }
    .stat-card { padding: 1rem; }
    .stat-card-value { font-size: 2rem; }
}

/* ===== RESPONSIVE — MOBILE ===== */
@media (max-width: 768px) {
    .sidebar { width: 0; border-right: none; }
    .sidebar:hover {
        width: var(--sidebar-w-open);
        border-right: 1px solid var(--hk-border);
        box-shadow: 4px 0 20px rgba(0, 0, 0, 0.1);
    }
    .content-wrapper { margin-left: 0; padding: 1rem 0.75rem; }
    .stat-card-value { font-size: 1.8rem; }
    .topbar-status { display: none !important; }
    .topbar { padding: 0 1rem; }
    .page-header { flex-wrap: wrap; gap: 0.5rem; }
    .page-title { font-size: 1rem; }
    .table-responsive { font-size: 0.78rem; }
    .form-select, .form-control { font-size: 0.85rem !important; }
    .card-body { padding: 0.875rem; }
    .modal-dialog { margin: 0.5rem; }
}

/* ===== RESPONSIVE — SMALL MOBILE ===== */
@media (max-width: 480px) {
    .stat-card-value { font-size: 1.5rem; }
    .stat-card { padding: 0.875rem; }
    .brand-text { display: none; }
}

/* ===== PRINT ===== */
@media print {
    .sidebar, .topbar, .d-print-none { display: none !important; }
    .content-wrapper { margin: 0 !important; padding: 0 !important; }
    body { background: white; color: black; }
}