/* =========================================================
   NIHD – National Internet Health Dashboard
   Custom CSS  |  style.css
   ========================================================= */

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

/* ---- CSS Variables ---- */
:root {
  --blue:        #1a73e8;
  --blue-light:  #e8f0fe;
  --blue-dark:   #1557b0;
  --green:       #34a853;
  --green-light: #e6f4ea;
  --red:         #ea4335;
  --red-light:   #fce8e6;
  --orange:      #fbbc04;
  --orange-light:#fef7e0;
  --purple:      #9c27b0;
  --gray-100:    #f8f9fa;
  --gray-200:    #e9ecef;
  --gray-400:    #ced4da;
  --gray-600:    #6c757d;
  --gray-800:    #343a40;
  --dark:        #1a1a2e;
  --card-shadow: 0 1px 4px rgba(0,0,0,0.08), 0 4px 16px rgba(0,0,0,0.06);
  --card-radius: 12px;
  --nav-height:  64px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  color: var(--dark);
  background: var(--gray-100);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

a { color: var(--blue); }
a:hover { color: var(--blue-dark); }

code { color: var(--blue); background: var(--blue-light); padding: 1px 5px; border-radius: 4px; font-size: 0.85em; }

/* =========================================================
   NAVBAR
   ========================================================= */
.navbar-nihd {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 60%, #0f3460 100%);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  height: var(--nav-height);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
  padding: 0;
  z-index: 1030;
}

.brand-icon {
  width: 38px; height: 38px;
  background: var(--blue);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; color: white;
  flex-shrink: 0;
  box-shadow: 0 0 0 3px rgba(26,115,232,0.25);
}

.brand-text { display: flex; flex-direction: column; }
.brand-title { font-size: 13px; font-weight: 700; color: white; line-height: 1.2; }
.brand-sub   { font-size: 10px; color: rgba(255,255,255,0.5); line-height: 1; }

.navbar-nihd .nav-link {
  color: rgba(255,255,255,0.75) !important;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 12px !important;
  border-radius: 8px;
  transition: all 0.2s;
}

.navbar-nihd .nav-link:hover,
.navbar-nihd .nav-link.active {
  color: white !important;
  background: rgba(255,255,255,0.1);
}

.nav-separator { width: 1px; height: 24px; background: rgba(255,255,255,0.15); margin: 0 4px; align-self: center; }

.btn-nav-login {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.3);
  color: white !important;
  font-size: 13px;
  padding: 5px 14px;
  border-radius: 8px;
  transition: all 0.2s;
  text-decoration: none;
  display: inline-flex; align-items: center;
}
.btn-nav-login:hover { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.5); color: white !important; }

.btn-nav-register {
  background: var(--blue);
  border: 1px solid var(--blue);
  color: white !important;
  font-size: 13px;
  padding: 5px 14px;
  border-radius: 8px;
  transition: all 0.2s;
  text-decoration: none;
  display: inline-flex; align-items: center;
}
.btn-nav-register:hover { background: var(--blue-dark); color: white !important; }

.nav-user-btn {
  background: rgba(255,255,255,0.1) !important;
  border-radius: 8px;
  color: white !important;
  font-size: 13px;
  font-weight: 500;
}

.dropdown-menu {
  border: 1px solid var(--gray-200);
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
  font-size: 13px;
  padding: 6px;
}

.dropdown-item { border-radius: 6px; padding: 8px 12px; }
.dropdown-item:hover { background: var(--blue-light); }

/* =========================================================
   FLASH MESSAGES
   ========================================================= */
.flash-container { position: relative; z-index: 1025; }

/* =========================================================
   FOOTER
   ========================================================= */
.nihd-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
  padding: 20px 0;
  margin-top: auto;
  border-top: 3px solid var(--blue);
  font-size: 12px;
}

.footer-brand { font-size: 14px; color: white; margin-bottom: 4px; }
.footer-disclaimer { color: rgba(255,255,255,0.5); max-width: 500px; }
.footer-links { display: flex; gap: 16px; justify-content: center; }
.footer-links a { color: rgba(255,255,255,0.6); text-decoration: none; transition: color 0.2s; }
.footer-links a:hover { color: white; }
.footer-copy { color: rgba(255,255,255,0.6); }

/* =========================================================
   PAGE SECTIONS
   ========================================================= */
.hero-section {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  padding: 28px 0 24px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

.hero-title {
  font-size: 26px;
  font-weight: 800;
  color: white;
  margin-bottom: 6px;
  line-height: 1.2;
}

.hero-sub { color: rgba(255,255,255,0.65); font-size: 14px; margin: 0; }

.page-header {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  padding: 24px 0 20px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

.page-title { font-size: 22px; font-weight: 800; color: white; margin-bottom: 4px; }
.page-sub   { color: rgba(255,255,255,0.65); font-size: 13px; margin: 0; }

/* =========================================================
   LIVE INDICATOR
   ========================================================= */
.live-indicator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 13px;
  color: white;
}

.live-dot {
  width: 8px; height: 8px;
  background: #34a853;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(1.3); }
}

/* =========================================================
   KPI CARDS
   ========================================================= */
.kpi-card {
  background: white;
  border-radius: var(--card-radius);
  padding: 20px;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--gray-200);
  border-left: 4px solid var(--gray-400);
  transition: transform 0.2s, box-shadow 0.2s;
  position: relative;
  overflow: hidden;
}

.kpi-card::after {
  content: '';
  position: absolute;
  top: -20px; right: -20px;
  width: 80px; height: 80px;
  border-radius: 50%;
  opacity: 0.06;
  background: currentColor;
}

.kpi-card:hover { transform: translateY(-2px); box-shadow: 0 4px 24px rgba(0,0,0,0.12); }

.kpi-card.kpi-good  { border-left-color: var(--green); }
.kpi-card.kpi-warn  { border-left-color: var(--orange); }
.kpi-card.kpi-bad   { border-left-color: var(--red); }
.kpi-card.kpi-latency { border-left-color: var(--blue); }
.kpi-card.kpi-uptime  { border-left-color: var(--green); }
.kpi-card.kpi-loss    { border-left-color: var(--orange); }
.kpi-card.kpi-alerts  { border-left-color: var(--red); }
.kpi-card.kpi-speed   { border-left-color: var(--purple); }

.kpi-icon {
  font-size: 22px;
  margin-bottom: 8px;
  color: var(--blue);
  opacity: 0.8;
}

.kpi-card.kpi-uptime .kpi-icon  { color: var(--green); }
.kpi-card.kpi-loss   .kpi-icon  { color: var(--orange); }
.kpi-card.kpi-alerts .kpi-icon  { color: var(--red); }
.kpi-card.kpi-speed  .kpi-icon  { color: var(--purple); }

.kpi-value {
  font-size: 32px;
  font-weight: 800;
  color: var(--dark);
  line-height: 1;
  margin-bottom: 4px;
}

.kpi-label { font-size: 12px; font-weight: 600; color: var(--gray-600); text-transform: uppercase; letter-spacing: 0.5px; }
.kpi-unit  { font-size: 11px; color: var(--gray-600); margin-top: 2px; }

/* =========================================================
   CONTENT CARDS
   ========================================================= */
.content-card {
  background: white;
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
  border: 1px solid var(--gray-200);
  overflow: hidden;
}

.card-header-nihd {
  padding: 16px 20px 12px;
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: white;
}

.card-title-nihd {
  font-size: 14px;
  font-weight: 700;
  color: var(--dark);
  margin: 0;
}

.card-subtitle-nihd {
  font-size: 12px;
  color: var(--gray-600);
  margin: 2px 0 0;
}

/* =========================================================
   CHART
   ========================================================= */
.chart-container {
  padding: 16px 20px 20px;
  height: 240px;
  position: relative;
}

.chart-tall { height: 280px; }

.chart-actions { display: flex; gap: 6px; }

/* =========================================================
   TABLES
   ========================================================= */
.nihd-table {
  margin: 0;
  font-size: 13px;
}

.nihd-table thead th {
  background: var(--gray-100);
  color: var(--gray-600);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 2px solid var(--gray-200);
  padding: 10px 16px;
  white-space: nowrap;
}

.nihd-table tbody td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--gray-200);
  vertical-align: middle;
}

.nihd-table tbody tr:hover { background: var(--gray-100); }
.nihd-table tbody tr:last-child td { border-bottom: none; }

.nihd-table-sm thead th,
.nihd-table-sm tbody td { padding: 8px 12px; }

.metric-val { font-weight: 600; color: var(--dark); }

/* =========================================================
   STATUS BADGES
   ========================================================= */
.status-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.badge-normal   { background: var(--green-light); color: #188038; }
.badge-degraded { background: var(--red-light);   color: #c5221f; }

/* =========================================================
   REGION LIST
   ========================================================= */
.region-list { padding: 0; }

.region-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  border-bottom: 1px solid var(--gray-200);
  text-decoration: none;
  color: var(--dark);
  transition: background 0.15s;
}

.region-item:hover { background: var(--gray-100); color: var(--dark); }
.region-item:last-child { border-bottom: none; }

.region-info { display: flex; align-items: center; gap: 10px; }
.region-badge { display: flex; align-items: center; }

.region-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.dot-green { background: var(--green); box-shadow: 0 0 4px var(--green); }
.dot-red   { background: var(--red);   box-shadow: 0 0 4px var(--red); }

.region-name { font-size: 13px; font-weight: 600; }
.region-meta { font-size: 11px; color: var(--gray-600); }

/* =========================================================
   DOWNLOAD BUTTONS
   ========================================================= */
.btn-download-csv {
  background: var(--green);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  transition: background 0.2s, transform 0.15s;
}
.btn-download-csv:hover { background: #2d9249; color: white; transform: translateY(-1px); }

.btn-download-pdf {
  background: var(--red);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  transition: background 0.2s, transform 0.15s;
}
.btn-download-pdf:hover { background: #c5221f; color: white; transform: translateY(-1px); }

/* =========================================================
   TAG PILLS
   ========================================================= */
.purpose-tags { display: flex; flex-wrap: wrap; gap: 6px; }

.tag-pill {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}
.tag-blue   { background: var(--blue-light);   color: var(--blue); }
.tag-green  { background: var(--green-light);  color: var(--green); }
.tag-orange { background: var(--orange-light); color: #b06000; }
.tag-purple { background: #f3e5f5; color: var(--purple); }

/* =========================================================
   TRACEROUTE HOP VISUALIZATION
   ========================================================= */
.trace-hops-container { padding: 20px; overflow-x: auto; }

.hop-path {
  display: flex;
  align-items: center;
  gap: 4px;
  min-width: max-content;
  padding: 10px 0;
}

.hop-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  min-width: 90px;
  background: white;
  border: 2px solid var(--gray-200);
  border-radius: 10px;
  padding: 10px 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  transition: transform 0.2s;
}
.hop-node:hover { transform: translateY(-3px); }

.hop-green { border-color: var(--green); }
.hop-orange { border-color: var(--orange); }
.hop-red { border-color: var(--red); }

.hop-num {
  width: 24px; height: 24px;
  background: var(--blue);
  color: white;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 6px;
}

.hop-ip      { font-size: 10px; font-weight: 600; color: var(--dark); font-family: monospace; }
.hop-latency { font-size: 11px; color: var(--blue); font-weight: 700; margin-top: 2px; }
.hop-loc     { font-size: 9px; color: var(--gray-600); margin-top: 2px; }

.hop-arrow {
  color: var(--gray-400);
  font-size: 14px;
  flex-shrink: 0;
}

/* =========================================================
   QUICK STATS
   ========================================================= */
.quick-stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--gray-200);
}
.quick-stat-row:last-child { border-bottom: none; }
.qs-label { font-size: 12px; color: var(--gray-600); }
.qs-val   { font-size: 13px; font-weight: 600; color: var(--dark); }

/* =========================================================
   ALERT STYLES
   ========================================================= */
.alert-summary-card {
  border-radius: var(--card-radius);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--card-shadow);
}

.alert-critical { background: linear-gradient(135deg, #fce8e6, #fbd3d0); border-left: 4px solid var(--red); }
.alert-warning  { background: linear-gradient(135deg, #fef7e0, #fde293); border-left: 4px solid var(--orange); }
.alert-info     { background: linear-gradient(135deg, var(--blue-light), #c8d9f8); border-left: 4px solid var(--blue); }

.as-icon { font-size: 28px; }
.alert-critical .as-icon { color: var(--red); }
.alert-warning  .as-icon { color: #b06000; }
.alert-info     .as-icon { color: var(--blue); }

.as-count { font-size: 28px; font-weight: 800; line-height: 1; }
.alert-critical .as-count { color: var(--red); }
.alert-warning  .as-count { color: #b06000; }
.alert-info     .as-count { color: var(--blue); }

.as-label { font-size: 12px; font-weight: 600; color: var(--gray-600); }

.alert-row-critical td { background: rgba(234,67,53,0.03) !important; }
.alert-row-warning td  { background: rgba(251,188,4,0.03) !important; }

/* =========================================================
   ACCORDION (Sources page)
   ========================================================= */
.nihd-accordion .accordion-item {
  border: 1px solid var(--gray-200);
  border-radius: var(--card-radius) !important;
  margin-bottom: 10px;
  overflow: hidden;
}

.nihd-accordion .accordion-button {
  font-weight: 600;
  font-size: 14px;
  background: white;
  color: var(--dark);
  box-shadow: none;
}

.nihd-accordion .accordion-button:not(.collapsed) {
  background: var(--blue-light);
  color: var(--blue);
}

/* =========================================================
   PIPELINE DIAGRAM (Sources page)
   ========================================================= */
.pipeline-diagram {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  padding: 16px 0;
}

.pipe-step { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.pipe-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
}
.bg-purple { background: var(--purple) !important; }
.pipe-label { font-size: 11px; font-weight: 600; text-align: center; color: var(--dark); }

.pipe-arrow { font-size: 18px; color: var(--gray-400); }

/* Coverage stats (sources page) */
.coverage-stat {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--gray-200);
  font-size: 13px;
}
.coverage-stat:last-child { border-bottom: none; }
.cs-label { color: var(--gray-600); }
.cs-val   { font-weight: 600; }

.isp-tag-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--gray-200);
  font-size: 13px;
}
.isp-tag-row:last-child { border-bottom: none; }
.isp-dot {
  width: 8px; height: 8px;
  background: var(--blue);
  border-radius: 50%;
}

/* =========================================================
   ABOUT PAGE
   ========================================================= */
.objective-card {
  padding: 16px;
  border-radius: 10px;
  border: 1px solid var(--gray-200);
  background: var(--gray-100);
  height: 100%;
  transition: transform 0.2s, box-shadow 0.2s;
}
.objective-card:hover { transform: translateY(-2px); box-shadow: var(--card-shadow); }
.obj-icon { font-size: 24px; margin-bottom: 8px; }
.obj-title { font-weight: 700; font-size: 13px; margin-bottom: 6px; }
.obj-desc  { font-size: 12px; color: var(--gray-600); margin: 0; }

.user-group-list { display: flex; flex-direction: column; gap: 16px; }
.user-group-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px;
  border-radius: 10px;
  border: 1px solid var(--gray-200);
}
.user-group-item i { font-size: 22px; flex-shrink: 0; padding-top: 2px; }

/* Roadmap */
.roadmap { display: flex; flex-direction: column; gap: 0; }
.roadmap-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 12px 0;
  border-left: 2px solid var(--gray-200);
  margin-left: 12px;
  padding-left: 20px;
  position: relative;
}
.rm-dot {
  position: absolute;
  left: -7px;
  top: 14px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--gray-400);
  border: 2px solid white;
  box-shadow: 0 0 0 2px var(--gray-400);
}
.roadmap-item.done .rm-dot    { background: var(--green); box-shadow: 0 0 0 2px var(--green); }
.roadmap-item.active .rm-dot  { background: var(--blue); box-shadow: 0 0 0 2px var(--blue); animation: pulse 1.5s infinite; }
.roadmap-item.active          { border-left-color: var(--blue); }
.roadmap-item.done            { border-left-color: var(--green); }
.rm-title { font-weight: 700; font-size: 13px; }

/* Tech stack */
.tech-stack-item {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--gray-200);
}
.tech-stack-item:last-child { border-bottom: none; }
.text-purple { color: var(--purple) !important; }

/* =========================================================
   AUTH PAGES
   ========================================================= */
.auth-page {
  min-height: calc(100vh - var(--nav-height) - 80px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 16px;
  background: linear-gradient(135deg, #f0f4ff 0%, #e8f0fe 50%, #f0f4ff 100%);
}

.auth-card-wrapper {
  width: 100%;
  max-width: 440px;
}

.auth-card-wide { max-width: 620px; }

.auth-brand-icon {
  width: 56px; height: 56px;
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px;
  color: white;
  margin: 0 auto 12px;
  box-shadow: 0 4px 16px rgba(26,115,232,0.3);
}

.auth-brand-title { font-size: 17px; font-weight: 800; color: var(--dark); margin-bottom: 2px; }
.auth-brand-sub   { font-size: 12px; color: var(--gray-600); }

.auth-card {
  background: white;
  border-radius: 16px;
  box-shadow: 0 4px 32px rgba(0,0,0,0.1);
  overflow: hidden;
}

.auth-card-header {
  padding: 24px 28px 12px;
  border-bottom: 1px solid var(--gray-200);
}
.auth-card-header h3 { font-size: 18px; font-weight: 800; margin-bottom: 4px; }
.auth-card-body { padding: 24px 28px; }

.input-group-auth .input-group-text {
  background: var(--gray-100);
  border-right: none;
  color: var(--gray-600);
}
.input-group-auth .form-control { border-left: none; }
.input-group-auth .form-control:focus {
  box-shadow: none;
  border-color: var(--blue);
}
.input-group-auth .form-control:focus + .input-group-text,
.input-group-auth .input-group-text:has(+ .form-control:focus) {
  border-color: var(--blue);
}

.btn-auth { padding: 10px 20px; font-weight: 600; border-radius: 8px; }

.auth-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0;
  color: var(--gray-600);
  font-size: 12px;
}
.auth-divider::before, .auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--gray-200);
}

/* Password strength */
.password-strength { margin-top: 6px; }
.strength-bar {
  height: 4px;
  background: var(--gray-200);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 4px;
}
.strength-fill {
  height: 100%;
  border-radius: 2px;
  width: 0;
  transition: width 0.3s, background 0.3s;
}

/* =========================================================
   MY DOWNLOADS
   ========================================================= */
.file-type-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}
.ft-pdf { background: var(--red-light); color: var(--red); }
.ft-csv { background: var(--green-light); color: var(--green); }

.file-name-text {
  font-size: 12px;
  font-family: monospace;
  color: var(--gray-600);
  max-width: 200px;
  display: inline-block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  vertical-align: middle;
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
}
.empty-icon { font-size: 48px; color: var(--gray-400); margin-bottom: 12px; }

.region-download-card {
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  padding: 12px;
  background: var(--gray-100);
}
.rdc-name { font-size: 12px; font-weight: 600; color: var(--dark); }

/* =========================================================
   UTILITY
   ========================================================= */
.download-locked { opacity: 0.9; }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 768px) {
  .hero-title { font-size: 20px; }
  .kpi-value  { font-size: 24px; }
  .kpi-card   { padding: 14px; }
  .chart-container { height: 200px; }
  .hop-path { flex-wrap: nowrap; }
  .pipeline-diagram { gap: 4px; }
  .pipe-icon { width: 38px; height: 38px; font-size: 16px; }
  .auth-card-body { padding: 20px 16px; }
  .auth-card-header { padding: 16px 16px 10px; }
}

/* =========================================================
   MOBILE HAMBURGER MENU — COLLAPSED NAVBAR
   ========================================================= */
@media (max-width: 991.98px) {
  /* Give the expanded collapse panel a solid dark background */
  .navbar-nihd .navbar-collapse {
    background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0 0 12px 12px;
    padding: 12px 16px 16px;
    margin: 0 -16px;           /* stretch edge-to-edge under the brand row */
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  }

  /* Stack nav items vertically with a little breathing room */
  .navbar-nihd .navbar-nav {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 2px !important;
    width: 100%;
  }

  /* Make each nav-item full-width */
  .navbar-nihd .nav-item {
    width: 100%;
  }

  /* Nav links: full-width, clearly visible */
  .navbar-nihd .nav-link {
    display: flex !important;
    align-items: center;
    width: 100%;
    padding: 10px 14px !important;
    border-radius: 8px;
    color: rgba(255, 255, 255, 0.85) !important;
    font-size: 14px !important;
  }

  .navbar-nihd .nav-link:hover,
  .navbar-nihd .nav-link.active {
    background: rgba(255, 255, 255, 0.12) !important;
    color: #ffffff !important;
  }

  /* Horizontal separator → horizontal divider line */
  .nav-separator {
    width: 100% !important;
    height: 1px !important;
    background: rgba(255, 255, 255, 0.12) !important;
    margin: 8px 0 !important;
    align-self: auto !important;
  }

  /* Login / Register buttons: full-width */
  .btn-nav-login,
  .btn-nav-register {
    width: 100%;
    justify-content: center;
    margin-top: 4px;
  }

  /* User dropdown button: full-width */
  .nav-user-btn {
    width: 100%;
    display: flex !important;
    align-items: center;
  }

  /* Dropdown menu opened inside mobile menu */
  .navbar-nihd .dropdown-menu {
    position: static !important;
    background: rgba(255, 255, 255, 0.06) !important;
    border: 1px solid rgba(255, 255, 255, 0.12) !important;
    box-shadow: none !important;
    border-radius: 8px !important;
    padding: 4px !important;
    margin-top: 4px !important;
    width: 100%;
  }

  .navbar-nihd .dropdown-item {
    color: rgba(255, 255, 255, 0.85) !important;
    border-radius: 6px;
  }

  .navbar-nihd .dropdown-item:hover {
    background: rgba(255, 255, 255, 0.1) !important;
    color: #ffffff !important;
  }

  .navbar-nihd .dropdown-item.text-danger {
    color: #f28b82 !important;
  }

  .navbar-nihd .dropdown-divider {
    border-color: rgba(255, 255, 255, 0.15) !important;
  }
}

/* =========================================================
   PROBE STATUS BAR
   ========================================================= */
.probe-status-bar {
  background: linear-gradient(135deg, #0a1628 0%, #112240 100%);
  border-bottom: 1px solid rgba(26,115,232,0.3);
  padding: 6px 0;
  font-size: 12px;
  color: rgba(255,255,255,0.85);
  position: sticky;
  top: var(--nav-height);
  z-index: 1020;
}

.probe-dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
  transition: background 0.4s;
}

.dot-green {
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  animation: pulse 1.5s infinite;
}

.dot-blue {
  background: var(--blue);
  box-shadow: 0 0 6px var(--blue);
  animation: pulse 2s infinite;
}

.dot-red {
  background: var(--red);
  box-shadow: 0 0 6px var(--red);
}

.probe-status-text {
  font-size: 12px;
  color: rgba(255,255,255,0.8);
  font-family: 'Inter', monospace;
}

.probe-status-time {
  font-size: 11px;
  color: rgba(255,255,255,0.45);
  font-family: monospace;
}

.probe-badge {
  background: rgba(26,115,232,0.2);
  border: 1px solid rgba(26,115,232,0.4);
  color: var(--blue);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 2px 8px;
  border-radius: 20px;
  flex-shrink: 0;
}

/* =========================================================
   SCROLLBAR
   ========================================================= */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--gray-100); }
::-webkit-scrollbar-thumb { background: var(--gray-400); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--gray-600); }

/* =========================================================
   ANIMATIONS
   ========================================================= */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.content-card { animation: fadeInUp 0.35s ease both; }
.kpi-card { animation: fadeInUp 0.3s ease both; }
.kpi-card:nth-child(1) { animation-delay: 0.05s; }
.kpi-card:nth-child(2) { animation-delay: 0.10s; }
.kpi-card:nth-child(3) { animation-delay: 0.15s; }
.kpi-card:nth-child(4) { animation-delay: 0.20s; }