/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0f1117;
  --bg2:       #161b27;
  --bg3:       #1e2535;
  --border:    #2a3348;
  --text:      #e2e8f0;
  --text-muted:#8892a4;
  --accent:    #6366f1;
  --accent2:   #818cf8;
  --green:     #22c55e;
  --yellow:    #f59e0b;
  --red:       #ef4444;
  --purple:    #a855f7;
  --sidebar-w: 240px;
  --topbar-h:  60px;
  --radius:    12px;
  --shadow:    0 4px 24px rgba(0,0,0,.4);
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
}

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ══════════ SIDEBAR ══════════ */
.sidebar {
  position: fixed;
  left: 0; top: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform .3s ease;
}
.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 20px 18px;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--accent2);
  border-bottom: 1px solid var(--border);
}
.sidebar-logo i { font-size: 1.4rem; color: var(--accent); }
.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 8px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: .875rem;
  font-weight: 500;
  transition: all .18s ease;
}
.nav-item:hover { background: var(--bg3); color: var(--text); }
.nav-item.active { background: rgba(99,102,241,.15); color: var(--accent2); }
.nav-item i { width: 18px; text-align: center; font-size: .95rem; }
.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 20px;
  border-top: 1px solid var(--border);
}
.avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  display: flex; align-items: center; justify-content: center;
  font-size: .75rem; font-weight: 700; color: #fff;
  flex-shrink: 0;
}
.user-name { font-size: .82rem; font-weight: 600; }
.user-role { font-size: .72rem; color: var(--text-muted); }

/* ══════════ TOP BAR ══════════ */
.topbar {
  position: fixed;
  left: var(--sidebar-w);
  top: 0; right: 0;
  height: var(--topbar-h);
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 24px;
  z-index: 90;
}
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.2rem;
  cursor: pointer;
}
.topbar-title { font-size: 1rem; font-weight: 600; flex: 1; color: var(--text-muted); }
.topbar-actions { display: flex; align-items: center; gap: 12px; }
.notification-btn {
  position: relative;
  width: 38px; height: 38px;
  border-radius: 8px;
  background: var(--bg3);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; font-size: 1rem; color: var(--text-muted);
}
.notification-btn .badge {
  position: absolute;
  top: -4px; right: -4px;
  background: var(--red);
  color: #fff; font-size: .6rem; font-weight: 700;
  padding: 1px 5px; border-radius: 10px;
  min-width: 16px; text-align: center;
}

/* ══════════ MAIN CONTENT ══════════ */
.main-content {
  margin-left: var(--sidebar-w);
  margin-top: var(--topbar-h);
  padding: 28px;
  flex: 1; min-width: 0;
}

/* ══════════ PAGES ══════════ */
.page { display: none; animation: fadeIn .25s ease; }
.page.active { display: block; }
@keyframes fadeIn { from { opacity:0; transform:translateY(8px); } to { opacity:1; transform:none; } }
.page-header { margin-bottom: 24px; }
.page-header h1 { font-size: 1.6rem; font-weight: 700; }
.subtitle { color: var(--text-muted); font-size: .875rem; margin-top: 4px; }
.flex-between { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* ══════════ CARDS ══════════ */
.card { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px; flex-wrap: wrap; gap: 8px;
}
.card-header h3 { font-size: .95rem; font-weight: 600; display: flex; align-items: center; gap: 8px; color: var(--text); }
.card-header h3 i { color: var(--accent2); }

/* ══════════ KPI GRID ══════════ */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 24px; }
.kpi-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px;
  position: relative; overflow: hidden;
  transition: transform .2s, box-shadow .2s;
}
.kpi-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.kpi-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; }
.kpi-card.green::before  { background: var(--green); }
.kpi-card.yellow::before { background: var(--yellow); }
.kpi-card.red::before    { background: var(--red); }
.kpi-card.purple::before { background: var(--purple); }
.kpi-card.blue::before   { background: var(--accent); }
.kpi-icon { width: 40px; height: 40px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; margin-bottom: 12px; }
.kpi-icon.green  { background: rgba(34,197,94,.15);  color: var(--green); }
.kpi-icon.yellow { background: rgba(245,158,11,.15); color: var(--yellow); }
.kpi-icon.red    { background: rgba(239,68,68,.15);  color: var(--red); }
.kpi-icon.purple { background: rgba(168,85,247,.15); color: var(--purple); }
.kpi-icon.blue   { background: rgba(99,102,241,.15); color: var(--accent2); }
.kpi-value { font-size: 2rem; font-weight: 800; line-height: 1; }
.kpi-label { font-size: .78rem; color: var(--text-muted); margin-top: 4px; }

/* ══════════ CHARTS ROW ══════════ */
.charts-row { display: grid; grid-template-columns: 1fr 1fr 2fr; gap: 16px; }
.chart-card { min-height: 320px; }

/* ══════════ BUTTONS ══════════ */
.btn { display: inline-flex; align-items: center; gap: 7px; padding: 9px 18px; border-radius: 8px; font-size: .84rem; font-weight: 600; cursor: pointer; border: none; transition: all .18s ease; text-decoration: none; font-family: inherit; white-space: nowrap; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #4f46e5; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(99,102,241,.4); }
.btn-outline { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.btn-outline:hover { background: var(--bg3); color: var(--text); }
.btn-ghost { background: none; border: none; color: var(--accent2); font-size: .82rem; font-weight: 500; cursor: pointer; padding: 4px 8px; font-family: inherit; }
.btn-ghost:hover { color: var(--text); }
.btn-danger { background: var(--red); color: #fff; }
.btn-danger:hover { background: #dc2626; }
.btn-sm { padding: 6px 12px; font-size: .78rem; }

/* ══════════ CHIPS ══════════ */
.chip { display: inline-flex; align-items: center; padding: 3px 10px; border-radius: 20px; font-size: .72rem; font-weight: 600; letter-spacing: .02em; }
.chip-green  { background: rgba(34,197,94,.15);   color: #4ade80; }
.chip-yellow { background: rgba(245,158,11,.15);  color: #fbbf24; }
.chip-red    { background: rgba(239,68,68,.15);   color: #f87171; }
.chip-purple { background: rgba(168,85,247,.15);  color: #c084fc; }
.chip-blue   { background: rgba(99,102,241,.15);  color: var(--accent2); }
.chip-gray   { background: rgba(136,146,164,.12); color: var(--text-muted); }

/* ══════════ FILTER BAR ══════════ */
.filter-bar { display: flex; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.search-box { display: flex; align-items: center; gap: 8px; background: var(--bg2); border: 1px solid var(--border); border-radius: 8px; padding: 8px 14px; flex: 1; min-width: 200px; }
.search-box i { color: var(--text-muted); }
.search-box input { background: none; border: none; outline: none; color: var(--text); font-size: .875rem; width: 100%; font-family: inherit; }
.filter-bar select { background: var(--bg2); border: 1px solid var(--border); border-radius: 8px; padding: 8px 12px; color: var(--text); font-size: .84rem; outline: none; cursor: pointer; font-family: inherit; }
.filter-bar select:hover { border-color: var(--accent); }

/* ══════════ DATA TABLE ══════════ */
.data-table { width: 100%; border-collapse: collapse; font-size: .84rem; }
.data-table th { background: var(--bg3); color: var(--text-muted); font-weight: 600; font-size: .75rem; text-transform: uppercase; letter-spacing: .05em; padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border); }
.data-table td { padding: 12px 16px; border-bottom: 1px solid rgba(42,51,72,.5); vertical-align: middle; }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: rgba(255,255,255,.02); }
.vendor-name-cell { font-weight: 600; }
.vendor-category  { font-size: .75rem; color: var(--text-muted); }
.score-bar-cell   { display: flex; align-items: center; gap: 8px; }
.score-bar-track  { flex: 1; height: 6px; background: var(--bg3); border-radius: 3px; overflow: hidden; min-width: 60px; }
.score-bar-fill   { height: 100%; border-radius: 3px; transition: width .4s ease; }
.action-btns      { display: flex; gap: 6px; }
.icon-btn { width: 30px; height: 30px; border-radius: 6px; background: var(--bg3); border: 1px solid var(--border); color: var(--text-muted); display: flex; align-items: center; justify-content: center; cursor: pointer; font-size: .8rem; transition: all .15s; }
.icon-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ══════════ ASSESSMENTS GRID ══════════ */
.assessments-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 16px; }
.assessment-card { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; cursor: pointer; transition: transform .2s, box-shadow .2s, border-color .2s; position: relative; overflow: hidden; }
.assessment-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--accent); }
.assessment-card::before { content: ''; position: absolute; top: 0; left: 0; width: 4px; height: 100%; }
.assessment-card.risk-Low::before     { background: var(--green); }
.assessment-card.risk-Medium::before  { background: var(--yellow); }
.assessment-card.risk-High::before    { background: var(--red); }
.assessment-card.risk-Critical::before{ background: var(--purple); }
.assessment-card-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 12px; }
.assessment-card-vendor { font-size: 1rem; font-weight: 700; }
.assessment-card-date   { font-size: .75rem; color: var(--text-muted); margin-top: 2px; }
.assessment-score-ring { width: 52px; height: 52px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1rem; font-weight: 800; border: 3px solid var(--border); flex-shrink: 0; }
.assessment-domain-bars { margin-top: 12px; display: flex; flex-direction: column; gap: 6px; }
.domain-bar-row   { display: flex; align-items: center; gap: 8px; font-size: .72rem; color: var(--text-muted); }
.domain-bar-label { width: 110px; flex-shrink: 0; }
.domain-bar-track { flex: 1; height: 5px; background: var(--bg3); border-radius: 3px; overflow: hidden; }
.domain-bar-fill  { height: 100%; border-radius: 3px; }
.domain-bar-val   { width: 28px; text-align: right; color: var(--text); font-weight: 600; font-size: .72rem; }

/* ══════════ ASSESSMENT FORM ══════════ */
.assessment-form-layout { max-width: 860px; }
.form-section { margin-bottom: 28px; }
.form-section-title { font-size: .9rem; font-weight: 700; color: var(--accent2); margin-bottom: 16px; display: flex; align-items: center; gap: 8px; padding-bottom: 10px; border-bottom: 1px solid var(--border); }
.form-hint { font-size: .8rem; color: var(--text-muted); margin-bottom: 16px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: .78rem; font-weight: 600; color: var(--text-muted); }
.form-group input, .form-group select, .form-group textarea { background: var(--bg3); border: 1px solid var(--border); border-radius: 8px; padding: 9px 12px; color: var(--text); font-size: .875rem; outline: none; transition: border-color .18s; font-family: inherit; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--accent); }
.form-group textarea { resize: vertical; }
.domain-scores { display: flex; flex-direction: column; gap: 14px; }
.domain-score-row { display: grid; grid-template-columns: 160px 1fr 70px; align-items: center; gap: 12px; }
.domain-score-label { font-size: .82rem; font-weight: 500; }
.domain-score-label span { display: block; font-size: .7rem; color: var(--text-muted); margin-top: 2px; }
.domain-slider { -webkit-appearance: none; height: 6px; background: var(--bg3); border-radius: 3px; outline: none; cursor: pointer; width: 100%; border: none; }
.domain-slider::-webkit-slider-thumb { -webkit-appearance: none; width: 18px; height: 18px; border-radius: 50%; background: var(--accent); cursor: pointer; box-shadow: 0 0 0 3px rgba(99,102,241,.3); }
.domain-score-val { text-align: center; font-weight: 700; font-size: 1rem; min-width: 50px; }
.score-preview { background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; display: flex; align-items: center; justify-content: space-around; gap: 20px; margin: 20px 0; flex-wrap: wrap; }
.score-preview-inner { text-align: center; }
.score-gauge { font-size: 3rem; font-weight: 900; line-height: 1; background: linear-gradient(135deg, var(--accent), var(--purple)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.score-label { font-size: .75rem; color: var(--text-muted); margin-top: 6px; }
.risk-badge-preview { display: inline-block; margin-top: 10px; padding: 4px 16px; border-radius: 20px; font-size: .8rem; font-weight: 700; }
.form-actions { display: flex; gap: 12px; justify-content: flex-end; padding-top: 16px; border-top: 1px solid var(--border); }

/* ══════════ RISK MATRIX ══════════ */
.risk-matrix-container { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.matrix-y-label, .matrix-x-label { font-size: .75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .08em; font-weight: 600; }
.matrix-grid { display: grid; grid-template-columns: repeat(4, 1fr); grid-template-rows: repeat(4, 1fr); gap: 6px; width: 100%; max-width: 800px; min-height: 380px; }
.matrix-cell { border-radius: 8px; padding: 10px; min-height: 85px; display: flex; flex-direction: column; gap: 6px; border: 1px solid var(--border); }
.matrix-cell-label { font-size: .62rem; color: var(--text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: .05em; }
.matrix-vendor-dot { display: inline-flex; align-items: center; gap: 4px; padding: 3px 8px; border-radius: 20px; font-size: .68rem; font-weight: 600; cursor: pointer; transition: transform .15s; width: fit-content; }
.matrix-vendor-dot:hover { transform: scale(1.05); }
.matrix-legend { display: flex; gap: 20px; margin-top: 16px; flex-wrap: wrap; justify-content: center; }
.legend-item { display: flex; align-items: center; gap: 6px; font-size: .8rem; color: var(--text-muted); }
.legend-dot { width: 10px; height: 10px; border-radius: 50%; }

/* ══════════ REPORTS ══════════ */
.reports-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ══════════ ALERTS ══════════ */
.alert-item { display: flex; align-items: flex-start; gap: 14px; padding: 14px 0; border-bottom: 1px solid rgba(42,51,72,.5); }
.alert-item:last-child { border-bottom: none; }
.alert-icon { width: 36px; height: 36px; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: .9rem; flex-shrink: 0; }
.alert-icon.red    { background: rgba(239,68,68,.15);  color: var(--red); }
.alert-icon.purple { background: rgba(168,85,247,.15); color: var(--purple); }
.alert-icon.yellow { background: rgba(245,158,11,.15); color: var(--yellow); }
.alert-title { font-size: .875rem; font-weight: 600; margin-bottom: 2px; }
.alert-desc  { font-size: .78rem; color: var(--text-muted); }
.alert-meta  { margin-top: 4px; font-size: .72rem; color: var(--text-muted); }

/* ══════════ MODALS ══════════ */
.modal-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.65); z-index: 200; align-items: center; justify-content: center; padding: 20px; backdrop-filter: blur(4px); }
.modal-overlay.open { display: flex; }
.modal { background: var(--bg2); border: 1px solid var(--border); border-radius: 16px; width: 100%; max-width: 560px; max-height: 90vh; overflow-y: auto; box-shadow: 0 24px 80px rgba(0,0,0,.6); animation: modalIn .22s ease; }
.modal-wide { max-width: 720px; }
@keyframes modalIn { from { opacity:0; transform: scale(.94) translateY(20px); } to { opacity:1; transform: none; } }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 20px 24px; border-bottom: 1px solid var(--border); position: sticky; top: 0; background: var(--bg2); z-index: 1; }
.modal-header h2 { font-size: 1.05rem; font-weight: 700; }
.modal-close { background: none; border: none; color: var(--text-muted); font-size: 1.1rem; cursor: pointer; padding: 4px 8px; border-radius: 6px; transition: all .15s; }
.modal-close:hover { background: var(--bg3); color: var(--text); }
.modal-body { padding: 24px; }
.vendor-detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 20px; }
.detail-block label { font-size: .72rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; }
.detail-block .detail-val { font-size: .92rem; margin-top: 4px; font-weight: 500; }
.score-summary-bars { display: flex; flex-direction: column; gap: 10px; margin-top: 12px; }
.score-summary-row  { display: flex; align-items: center; gap: 10px; font-size: .8rem; }
.score-summary-label { width: 130px; flex-shrink: 0; }
.score-summary-track { flex: 1; height: 8px; background: var(--bg3); border-radius: 4px; overflow: hidden; }
.score-summary-fill  { height: 100%; border-radius: 4px; }
.score-summary-val   { width: 32px; text-align: right; font-weight: 700; font-size: .8rem; }
.recent-item { display: flex; align-items: center; gap: 14px; padding: 12px 0; border-bottom: 1px solid rgba(42,51,72,.5); cursor: pointer; transition: background .15s; }
.recent-item:last-child { border-bottom: none; }
.recent-item:hover { background: rgba(255,255,255,.02); border-radius: 8px; padding-left: 8px; }
.recent-vendor-name { font-weight: 600; font-size: .875rem; }
.recent-vendor-meta { font-size: .72rem; color: var(--text-muted); margin-top: 2px; }
.recent-score { margin-left: auto; font-size: 1.1rem; font-weight: 800; }

/* ══════════ TOAST ══════════ */
.toast { position: fixed; bottom: 28px; right: 28px; background: var(--bg2); border: 1px solid var(--green); color: var(--text); border-radius: 10px; padding: 14px 20px; display: flex; align-items: center; gap: 10px; font-size: .875rem; font-weight: 500; box-shadow: var(--shadow); z-index: 999; transform: translateY(80px); opacity: 0; transition: all .3s ease; }
.toast.show { transform: translateY(0); opacity: 1; }
.toast i { color: var(--green); }

/* Report summary */
.report-summary-table { width: 100%; border-collapse: collapse; font-size: .82rem; }
.report-summary-table th { color: var(--text-muted); font-weight: 600; font-size: .72rem; text-transform: uppercase; letter-spacing: .05em; padding: 8px 12px; border-bottom: 1px solid var(--border); text-align: left; }
.report-summary-table td { padding: 10px 12px; border-bottom: 1px solid rgba(42,51,72,.5); }
.report-summary-table tr:last-child td { border-bottom: none; }

/* ══════════ RESPONSIVE ══════════ */
@media (max-width: 1100px) {
  .charts-row { grid-template-columns: 1fr 1fr; }
  .charts-row .chart-card:last-child { grid-column: span 2; }
}
@media (max-width: 900px) { .reports-grid { grid-template-columns: 1fr; } }
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .topbar { left: 0; }
  .main-content { margin-left: 0; padding: 16px; }
  .menu-toggle { display: block; }
  .charts-row { grid-template-columns: 1fr; }
  .charts-row .chart-card:last-child { grid-column: span 1; }
  .form-grid { grid-template-columns: 1fr; }
  .domain-score-row { grid-template-columns: 120px 1fr 56px; }
  .vendor-detail-grid { grid-template-columns: 1fr; }
}