/* ========== RESET & BASE ========== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@400;600;700;800&display=swap');

:root {
  --bg-deep:       #060b18;
  --bg-mid:        #0d1529;
  --glass-bg:      rgba(255,255,255,0.06);
  --glass-border:  rgba(255,255,255,0.12);
  --glass-hover:   rgba(255,255,255,0.10);
  --accent-blue:   #4f8ef7;
  --accent-violet: #8b5cf6;
  --accent-teal:   #06b6d4;
  --accent-rose:   #f43f5e;
  --accent-green:  #10b981;
  --accent-amber:  #f59e0b;
  --text-primary:  #f1f5f9;
  --text-secondary:#94a3b8;
  --text-muted:    #64748b;
  --sidebar-w:     72px;
  --sidebar-exp:   260px;
  --topbar-h:      64px;
  --radius-lg:     20px;
  --radius-md:     14px;
  --radius-sm:     10px;
  --shadow-glow:   0 0 40px rgba(79,142,247,0.15);
  --transition:    all 0.3s cubic-bezier(0.4,0,0.2,1);
}

html { scroll-behavior: smooth; }

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

/* ========== ANIMATED BACKGROUND ========== */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 10%, rgba(79,142,247,0.12) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 80%, rgba(139,92,246,0.10) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 60% 20%, rgba(6,182,212,0.08) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* ========== LAYOUT SHELL ========== */
.app-shell {
  display: flex;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}

/* ========== ICON SIDEBAR (narrow) ========== */
.icon-sidebar {
  width: var(--sidebar-w);
  background: rgba(13,21,41,0.8);
  backdrop-filter: blur(20px);
  border-right: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px 0;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 200;
  transition: var(--transition);
}

.icon-sidebar .brand {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-violet));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #fff;
  margin-bottom: 32px;
  box-shadow: 0 0 20px rgba(79,142,247,0.4);
  cursor: pointer;
}

.icon-sidebar nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.nav-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

.nav-icon:hover,
.nav-icon.active {
  background: var(--glass-bg);
  color: var(--accent-blue);
  box-shadow: 0 0 12px rgba(79,142,247,0.2);
}

.nav-icon.active::before {
  content: '';
  position: absolute;
  left: -1px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 24px;
  background: var(--accent-blue);
  border-radius: 0 3px 3px 0;
}

.nav-icon .tooltip {
  position: absolute;
  left: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%);
  background: rgba(13,21,41,0.95);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 8px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
  backdrop-filter: blur(10px);
}

.nav-icon:hover .tooltip { opacity: 1; }

.icon-sidebar .sidebar-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-teal), var(--accent-blue));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  cursor: pointer;
  border: 2px solid var(--glass-border);
}

/* ========== MAIN CONTENT ========== */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ========== TOPBAR ========== */
.topbar {
  height: var(--topbar-h);
  background: rgba(13,21,41,0.7);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  padding: 0 28px;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.topbar-title {
  font-family: 'Outfit', sans-serif;
  font-size: 20px;
  font-weight: 700;
  background: linear-gradient(90deg, var(--text-primary), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.topbar-sub {
  font-size: 13px;
  color: var(--text-muted);
  margin-left: 4px;
}

.topbar-spacer { flex: 1; }

.topbar-pill {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 40px;
  padding: 6px 16px;
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: var(--transition);
}

.topbar-pill:hover { background: var(--glass-hover); }

.live-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-green);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%,100% { box-shadow: 0 0 0 0 rgba(16,185,129,0.6); }
  50%      { box-shadow: 0 0 0 6px rgba(16,185,129,0); }
}

/* ========== SECTIONS (tab pages) ========== */
.page-section {
  display: none;
  padding: 28px;
  animation: fadeSlideIn 0.35s ease;
}

.page-section.active { display: block; }

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.section-title {
  font-family: 'Outfit', sans-serif;
  font-size: 26px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.section-subtitle {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 28px;
}

/* ========== GLASS CARD ========== */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(16px);
  padding: 24px;
  transition: var(--transition);
}

.glass-card:hover {
  background: var(--glass-hover);
  border-color: rgba(255,255,255,0.18);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

/* ========== STAT CARDS GRID ========== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(16px);
  padding: 22px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.stat-card.blue::after  { background: linear-gradient(90deg, var(--accent-blue), var(--accent-teal)); }
.stat-card.violet::after{ background: linear-gradient(90deg, var(--accent-violet), var(--accent-blue)); }
.stat-card.rose::after  { background: linear-gradient(90deg, var(--accent-rose), var(--accent-amber)); }
.stat-card.green::after { background: linear-gradient(90deg, var(--accent-green), var(--accent-teal)); }

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.3);
  background: var(--glass-hover);
}

.stat-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.stat-icon-wrap.blue   { background: rgba(79,142,247,0.15);  color: var(--accent-blue); }
.stat-icon-wrap.violet { background: rgba(139,92,246,0.15); color: var(--accent-violet); }
.stat-icon-wrap.rose   { background: rgba(244,63,94,0.15);  color: var(--accent-rose); }
.stat-icon-wrap.green  { background: rgba(16,185,129,0.15); color: var(--accent-green); }

.stat-info { display: flex; flex-direction: column; }

.stat-value {
  font-family: 'Outfit', sans-serif;
  font-size: 30px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

.stat-badge {
  margin-left: auto;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 40px;
}

.stat-badge.up   { background: rgba(16,185,129,0.15); color: var(--accent-green); }
.stat-badge.down { background: rgba(244,63,94,0.15);  color: var(--accent-rose); }

/* ========== CHARTS GRID ========== */
.charts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 22px;
}

.chart-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(16px);
  padding: 22px;
  transition: var(--transition);
}

.chart-card:hover {
  background: var(--glass-hover);
  border-color: rgba(255,255,255,0.18);
}

.chart-card.full-width { grid-column: 1 / -1; }

.chart-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.chart-header h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
}

.chart-badge {
  font-size: 11px;
  padding: 4px 12px;
  border-radius: 40px;
  background: rgba(79,142,247,0.15);
  color: var(--accent-blue);
  font-weight: 600;
}

.chart-container {
  position: relative;
  height: 240px;
  width: 100%;
}

.chart-container.tall { height: 300px; }

/* ========== COMPARISON TABLE ========== */
.table-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(16px);
  padding: 24px;
  margin-bottom: 22px;
  overflow-x: auto;
}

.table-card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.comparison-table { width: 100%; border-collapse: collapse; }

.comparison-table th {
  padding: 12px 16px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--glass-border);
  text-align: left;
}

.comparison-table td {
  padding: 14px 16px;
  font-size: 14px;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.comparison-table tr:hover td { background: rgba(255,255,255,0.03); }

.comparison-table .highlight { color: var(--accent-rose); font-weight: 700; }

.comparison-table .diff-badge {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(244,63,94,0.12);
  color: var(--accent-rose);
  border-radius: 40px;
  font-size: 12px;
  font-weight: 600;
}

/* ========== PREDICTION PANEL (section) ========== */
.predict-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.predict-form-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(16px);
  padding: 28px;
}

.predict-form-card h2 {
  font-family: 'Outfit', sans-serif;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.predict-form-card p {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.inputs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 20px;
}

.input-group { display: flex; flex-direction: column; gap: 6px; }

.input-group label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.input-group input {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  font-size: 14px;
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  transition: var(--transition);
}

.input-group input:focus {
  outline: none;
  border-color: var(--accent-blue);
  background: rgba(79,142,247,0.08);
  box-shadow: 0 0 0 3px rgba(79,142,247,0.15);
}

.input-group input::placeholder { color: var(--text-muted); }

.predict-btn {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-violet));
  border: none;
  border-radius: var(--radius-md);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: var(--transition);
  letter-spacing: 0.02em;
}

.predict-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(79,142,247,0.35);
}

.result-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(16px);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.result-placeholder {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--text-muted);
  text-align: center;
}

.result-placeholder i { font-size: 48px; opacity: 0.3; }
.result-placeholder p { font-size: 14px; max-width: 200px; line-height: 1.5; }

.result-box {
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  animation: fadeSlideIn 0.4s ease;
}

.result-box.high {
  background: rgba(244,63,94,0.1);
  border: 1px solid rgba(244,63,94,0.3);
}

.result-box.low {
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.3);
}

.result-label {
  font-family: 'Outfit', sans-serif;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.result-box.high .result-label { color: var(--accent-rose); }
.result-box.low  .result-label { color: var(--accent-green); }

.result-prob { font-size: 14px; color: var(--text-secondary); }

.result-gauge {
  background: rgba(255,255,255,0.05);
  height: 8px;
  border-radius: 40px;
  margin-top: 16px;
  overflow: hidden;
}

.result-gauge-fill {
  height: 100%;
  border-radius: 40px;
  transition: width 0.8s ease;
}

.result-box.high .result-gauge-fill { background: linear-gradient(90deg, var(--accent-amber), var(--accent-rose)); }
.result-box.low  .result-gauge-fill { background: linear-gradient(90deg, var(--accent-teal), var(--accent-green)); }

/* ========== AI INSIGHT BADGE ========== */
.agent-badge {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: rgba(79,142,247,0.08);
  border: 1px solid rgba(79,142,247,0.2);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.agent-badge i { color: var(--accent-blue); font-size: 18px; flex-shrink: 0; margin-top: 1px; }

/* ========== TREND SUMMARY ========== */
.trend-summary {
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  margin-top: 12px;
  color: var(--text-secondary);
}

/* ========== LOADING OVERLAY ========== */
#loadingOverlay {
  position: fixed;
  inset: 0;
  background: rgba(6,11,24,0.8);
  backdrop-filter: blur(8px);
  z-index: 9999;
  display: none;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  gap: 16px;
}

.spinner {
  width: 52px;
  height: 52px;
  border: 3px solid rgba(79,142,247,0.2);
  border-top-color: var(--accent-blue);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

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

#loadingOverlay p {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
}

/* ========== RISK FACTORS PAGE ========== */
.risk-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 24px;
}

.risk-metric-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(16px);
  padding: 20px;
  transition: var(--transition);
}

.risk-metric-card:hover {
  transform: translateY(-3px);
  background: var(--glass-hover);
}

.risk-metric-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 10px;
}

.risk-bar-track {
  height: 6px;
  background: rgba(255,255,255,0.07);
  border-radius: 40px;
  overflow: hidden;
  margin: 10px 0;
}

.risk-bar-fill {
  height: 100%;
  border-radius: 40px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-violet));
  transition: width 1s ease;
}

.risk-values {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
}

.risk-values .val-diabetic { color: var(--accent-rose); font-weight: 700; }

/* ========== MODEL METRICS ========== */
.metrics-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.metric-chip {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 18px;
  text-align: center;
  transition: var(--transition);
}

.metric-chip:hover { background: var(--glass-hover); transform: translateY(-2px); }

.metric-value {
  font-family: 'Outfit', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--accent-blue);
}

.metric-name {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
  font-weight: 500;
}

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 40px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

/* ========== RESPONSIVE ========== */
@media (max-width: 1100px) {
  .stats-grid   { grid-template-columns: repeat(2, 1fr); }
  .charts-row   { grid-template-columns: 1fr; }
  .predict-panel{ grid-template-columns: 1fr; }
  .risk-grid    { grid-template-columns: repeat(2, 1fr); }
  .metrics-row  { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 700px) {
  .stats-grid   { grid-template-columns: 1fr 1fr; }
  .inputs-grid  { grid-template-columns: 1fr; }
  .risk-grid    { grid-template-columns: 1fr; }
  .metrics-row  { grid-template-columns: 1fr 1fr; }
  .topbar-pill  { display: none; }
}