/* ==========================================================================
   PORTAFOLIO DE OBSERVABILIDAD & SRE - KABIR AHUMADA TENAZOA
   Design System & Modern CSS Architecture
   ========================================================================== */

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

/* --- CSS Variables & Design Tokens --- */
:root {
  /* Color Palette - Dark Telemetry Theme */
  --bg-primary: #070B14;
  --bg-secondary: #0D1322;
  --bg-surface: #131D31;
  --bg-surface-elevated: #1A2640;
  --bg-surface-hover: #223254;

  /* Borders & Dividers */
  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-default: #243452;
  --border-highlight: #3B537E;

  /* Accent Colors (Observability Semantics) */
  --telemetry-green: #10B981;
  --telemetry-green-glow: rgba(16, 185, 129, 0.25);
  --telemetry-cyan: #06B6D4;
  --telemetry-cyan-glow: rgba(6, 182, 212, 0.25);
  --telemetry-indigo: #6366F1;
  --telemetry-indigo-glow: rgba(99, 102, 241, 0.25);
  --telemetry-purple: #8B5CF6;
  --telemetry-amber: #F59E0B;
  --telemetry-amber-glow: rgba(245, 158, 11, 0.25);
  --telemetry-red: #EF4444;

  /* Typography Colors */
  --text-primary: #F8FAFC;
  --text-secondary: #CBD5E1;
  --text-muted: #94A3B8;
  --text-subtle: #64748B;

  /* Fonts */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;

  /* Layout & Spacing */
  --max-width: 1240px;
  --header-height: 72px;
  --status-bar-height: 38px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.6);
  --shadow-glow-cyan: 0 0 25px rgba(6, 182, 212, 0.2);
  --shadow-glow-green: 0 0 25px rgba(16, 185, 129, 0.2);
}

/* --- Global Reset & Box Sizing --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
  background: radial-gradient(circle at 15% 20%, rgba(6, 182, 212, 0.04) 0%, transparent 40%),
    radial-gradient(circle at 85% 60%, rgba(99, 102, 241, 0.04) 0%, transparent 40%),
    var(--bg-primary);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul {
  list-style: none;
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

/* --- Container Utility --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* --- Telemetry Live Status Ticker (Top Bar) --- */
.status-bar {
  background-color: #05080F;
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.4rem 0;
  position: relative;
  z-index: 101;
}

.status-bar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.status-indicator-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.status-pulse {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--telemetry-green);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--telemetry-green);
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulse-animation 2s infinite;
}

@keyframes pulse-animation {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  }

  70% {
    transform: scale(1);
    box-shadow: 0 0 0 6px rgba(16, 185, 129, 0);
  }

  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

.status-metrics {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  color: var(--text-muted);
}

.metric-chip {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.metric-chip .chip-label {
  color: var(--text-subtle);
}

.metric-chip .chip-value {
  color: var(--text-secondary);
  font-weight: 600;
}

.metric-chip .chip-value.healthy {
  color: var(--telemetry-green);
}

.metric-chip .chip-value.highlight {
  color: var(--telemetry-cyan);
}

/* --- Main Navigation Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 11, 20, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--header-height);
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.logo-badge {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.15), rgba(99, 102, 241, 0.15));
  border: 1px solid rgba(6, 182, 212, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--telemetry-cyan);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.1rem;
}

.logo-text-title {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.logo-text-subtitle {
  font-size: 0.72rem;
  color: var(--telemetry-cyan);
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 0.4rem 0;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--telemetry-cyan), var(--telemetry-indigo));
  border-radius: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.mobile-menu-btn {
  display: none;
  color: var(--text-primary);
  font-size: 1.35rem;
  padding: 0.5rem;
}

/* --- Buttons & Action Controls --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #0284C7, #06B6D4);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(6, 182, 212, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0369A1, #0891B2);
  box-shadow: 0 6px 20px rgba(6, 182, 212, 0.45);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-secondary);
  border: 1px solid var(--border-default);
}

.btn-secondary:hover {
  background-color: var(--bg-surface-elevated);
  color: var(--text-primary);
  border-color: var(--border-highlight);
  transform: translateY(-1px);
}

.btn-outline-cyan {
  background: rgba(6, 182, 212, 0.08);
  color: var(--telemetry-cyan);
  border: 1px solid rgba(6, 182, 212, 0.35);
}

.btn-outline-cyan:hover {
  background: rgba(6, 182, 212, 0.16);
  border-color: var(--telemetry-cyan);
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow-cyan);
}

.btn-sm {
  padding: 0.45rem 0.85rem;
  font-size: 0.8rem;
}

.btn-lg {
  padding: 0.85rem 1.65rem;
  font-size: 0.95rem;
}

/* --- Section Formatting & Headers --- */
.section {
  padding: 5.5rem 0;
  position: relative;
}

.section-header {
  margin-bottom: 3.5rem;
  text-align: center;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--telemetry-cyan);
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.25);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 0.85rem;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 0.85rem;
}

.section-subtitle {
  font-size: 1.02rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* --- Hero Section --- */
.hero-section {
  padding: 4.5rem 0 5rem 0;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-badge-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1.25rem;
}

.hero-role-pill {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--telemetry-green);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.hero-cert-pill {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: #38BDF8;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.3);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.hero-title {
  font-size: 3.1rem;
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 1.15rem;
}

.hero-title .highlight-text {
  color: #38BDF8;
}

.hero-tagline {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 1.85rem;
}

.hero-tagline strong {
  color: var(--text-primary);
  font-weight: 600;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.hero-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-subtle);
}

.hero-stat-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.hero-stat-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-default);
}

.stat-number {
  font-size: 1.55rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.stat-number.cyan {
  color: var(--telemetry-cyan);
}

.stat-number.green {
  color: var(--telemetry-green);
}

.stat-number.indigo {
  color: var(--telemetry-indigo);
}

.stat-number.amber {
  color: var(--telemetry-amber);
}

.stat-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.3;
}

/* --- Hero Terminal / Live Card --- */
.hero-terminal-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.terminal-header {
  background: #0A0E18;
  padding: 0.75rem 1.15rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-subtle);
}

.terminal-controls {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.t-btn {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.t-btn.red {
  background-color: #EF4444;
}

.t-btn.yellow {
  background-color: #F59E0B;
}

.t-btn.green {
  background-color: #10B981;
}

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.terminal-body {
  padding: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.log-line {
  margin-bottom: 0.65rem;
  line-height: 1.5;
  display: flex;
  gap: 0.5rem;
}

.log-time {
  color: var(--text-subtle);
}

.log-tag {
  font-weight: 600;
}

.log-tag.info {
  color: var(--telemetry-cyan);
}

.log-tag.ok {
  color: var(--telemetry-green);
}

.log-tag.warn {
  color: var(--telemetry-amber);
}

.log-msg {
  color: var(--text-secondary);
}

.terminal-telemetry-box {
  margin-top: 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.85rem;
}

.telemetry-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  font-size: 0.76rem;
}

.telemetry-row:last-child {
  margin-bottom: 0;
}

.telemetry-label {
  color: var(--text-muted);
}

.telemetry-val {
  font-weight: 600;
  color: var(--text-primary);
}

.telemetry-bar-container {
  width: 100%;
  height: 6px;
  background: var(--bg-primary);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 0.25rem;
}

.telemetry-bar-fill {
  height: 100%;
  border-radius: 999px;
}

.telemetry-bar-fill.green {
  background: var(--telemetry-green);
  width: 99.98%;
}

.telemetry-bar-fill.cyan {
  background: var(--telemetry-cyan);
  width: 94%;
}

.telemetry-bar-fill.indigo {
  background: var(--telemetry-indigo);
  width: 100%;
}

/* --- Observability Interactive Console Section --- */
.console-section {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.obs-console-wrapper {
  background: var(--bg-primary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.console-nav-tabs {
  display: flex;
  background: #060910;
  border-bottom: 1px solid var(--border-subtle);
  overflow-x: auto;
}

.console-tab-btn {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 1rem 1.5rem;
  font-size: 0.86rem;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.console-tab-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.02);
}

.console-tab-btn.active {
  color: var(--telemetry-cyan);
  background: rgba(6, 182, 212, 0.04);
  border-bottom-color: var(--telemetry-cyan);
}

.console-content-panel {
  padding: 2rem;
  display: none;
}

.console-content-panel.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Metric Charts Panel */
.metrics-top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.service-selector {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.custom-select {
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  outline: none;
}

.time-window-selector {
  display: flex;
  gap: 0.35rem;
  background: var(--bg-surface);
  padding: 0.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.time-btn {
  padding: 0.25rem 0.65rem;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  border-radius: 4px;
}

.time-btn.active {
  background: var(--bg-surface-elevated);
  color: var(--telemetry-cyan);
  font-weight: 600;
}

.metrics-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-bottom: 1.75rem;
}

.metric-kpi-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.15rem;
}

.kpi-title {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  margin-bottom: 0.4rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.kpi-value {
  font-size: 1.65rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--text-primary);
  line-height: 1.1;
  margin-bottom: 0.35rem;
}

.kpi-status {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--telemetry-green);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.chart-container-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  position: relative;
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.chart-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.chart-legend {
  display: flex;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.legend-color {
  width: 10px;
  height: 10px;
  border-radius: 2px;
}

.canvas-wrapper {
  width: 100%;
  height: 220px;
  position: relative;
}

canvas#telemetryChart {
  width: 100%;
  height: 100%;
}

/* Synthetics Panel */
.synthetics-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.synthetic-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.15rem 1.35rem;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 0.8fr;
  align-items: center;
  gap: 1rem;
  transition: all var(--transition-fast);
}

.synthetic-item:hover {
  background: var(--bg-surface-elevated);
  border-color: var(--border-default);
}

.syn-name-col {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.syn-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(6, 182, 212, 0.1);
  color: var(--telemetry-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.syn-title {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-bottom: 0.15rem;
}

.syn-url {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-muted);
}

.syn-col-label {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--text-subtle);
  margin-bottom: 0.15rem;
}

.syn-col-val {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.badge-status-ok {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  background: rgba(16, 185, 129, 0.1);
  color: var(--telemetry-green);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

/* Distributed Tracing Panel */
.traces-wrapper {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.trace-summary-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.trace-span-row {
  display: grid;
  grid-template-columns: 240px 1fr 100px;
  align-items: center;
  gap: 1.5rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.trace-span-name {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
}

.span-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.waterfall-track {
  width: 100%;
  height: 18px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 4px;
  position: relative;
}

.waterfall-bar {
  position: absolute;
  height: 100%;
  border-radius: 4px;
  opacity: 0.85;
}

.trace-duration {
  text-align: right;
  font-weight: 600;
  color: var(--text-primary);
}

/* --- Experience Timeline Section --- */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 20px;
  width: 2px;
  background: linear-gradient(180deg, var(--telemetry-cyan), var(--telemetry-indigo), var(--border-default));
}

.timeline-item {
  position: relative;
  padding-left: 60px;
  margin-bottom: 3.5rem;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-node {
  position: absolute;
  left: 11px;
  top: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--telemetry-cyan);
  box-shadow: 0 0 12px rgba(6, 182, 212, 0.5);
  z-index: 2;
}

.timeline-node.active {
  border-color: var(--telemetry-green);
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.6);
}

.timeline-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition-normal);
}

.timeline-card:hover {
  border-color: var(--border-highlight);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.timeline-header-meta {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.company-title-group {
  display: flex;
  flex-direction: column;
}

.job-role {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.company-name {
  font-size: 1rem;
  color: var(--telemetry-cyan);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.company-name a:hover {
  text-decoration: underline;
}

.duration-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
}

.job-scope-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  line-height: 1.6;
}

.duty-list {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.duty-item {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.duty-icon {
  color: var(--telemetry-cyan);
  margin-top: 0.2rem;
  flex-shrink: 0;
}

.achievements-box {
  background: rgba(16, 185, 129, 0.05);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: var(--radius-md);
  padding: 1.15rem;
  margin-bottom: 1.25rem;
}

.achievements-title {
  font-size: 0.82rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--telemetry-green);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.65rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.achieve-item {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.45rem;
  line-height: 1.45;
}

.achieve-item:last-child {
  margin-bottom: 0;
}

.tech-tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
}

/* --- Verified Certifications Hub Section --- */
.certs-section {
  background-color: var(--bg-primary);
}

.certs-filter-bar {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 2.5rem;
}

.filter-btn {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  padding: 0.45rem 1rem;
  border-radius: 999px;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-default);
}

.filter-btn.active {
  background: rgba(6, 182, 212, 0.1);
  color: var(--telemetry-cyan);
  border-color: var(--telemetry-cyan);
  font-weight: 600;
}

.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.5rem;
}

.cert-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.cert-card:hover {
  border-color: var(--border-highlight);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.cert-card.verified-highlight {
  border-color: rgba(6, 182, 212, 0.4);
  background: linear-gradient(180deg, rgba(6, 182, 212, 0.03), var(--bg-secondary));
}

.cert-card-top {
  display: flex;
  align-items: flex-start;
  gap: 1.15rem;
  margin-bottom: 1.25rem;
}

.cert-issuer-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.cert-info-main {
  flex: 1;
}

.cert-issuer-name {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--telemetry-cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.cert-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.cert-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-muted);
  padding-top: 0.85rem;
  border-top: 1px solid var(--border-subtle);
  margin-top: auto;
}

.cert-verify-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--telemetry-cyan);
  font-weight: 600;
  transition: color var(--transition-fast);
}

.cert-verify-link:hover {
  color: #38BDF8;
  text-decoration: underline;
}

/* --- Skills & Domains Matrix Section --- */
.skills-section {
  background-color: var(--bg-secondary);
}

.skills-matrix-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.skill-domain-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: all var(--transition-normal);
}

.skill-domain-card:hover {
  border-color: var(--border-default);
  transform: translateY(-2px);
}

.domain-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1.25rem;
}

.domain-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: rgba(6, 182, 212, 0.1);
  color: var(--telemetry-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.domain-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.domain-pills-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.skill-pill {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
  background: var(--bg-primary);
  border: 1px solid var(--border-default);
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  transition: all var(--transition-fast);
}

.skill-pill:hover {
  border-color: var(--telemetry-cyan);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.skill-pill.mastered {
  border-color: rgba(16, 185, 129, 0.4);
  background: rgba(16, 185, 129, 0.05);
  color: #A7F3D0;
}

/* --- Education Section --- */
.education-section {
  background-color: var(--bg-primary);
}

.education-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.education-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.education-card:hover {
  border-color: var(--border-highlight);
  transform: translateY(-2px);
}

.edu-badge-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.edu-year {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--telemetry-cyan);
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.2);
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
}

.edu-degree {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.edu-institution {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 0.85rem;
  font-weight: 500;
}

.edu-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* --- Contact & Footer Section --- */
.contact-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding-bottom: 4rem;
}

.contact-card-box {
  background: var(--bg-primary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: 3.5rem 2.5rem;
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
  box-shadow: var(--shadow-lg);
}

.contact-card-title {
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.contact-card-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 2.25rem auto;
  line-height: 1.6;
}

.contact-channels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact-channel-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-fast);
}

.contact-channel-item:hover {
  background: var(--bg-surface-elevated);
  border-color: var(--border-highlight);
  transform: translateY(-2px);
}

.channel-icon {
  font-size: 1.5rem;
  color: var(--telemetry-cyan);
}

.channel-label {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.channel-val {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.footer-bottom {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-social-links {
  display: flex;
  gap: 12px;
}

.footer-social-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  color: #fff;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.footer-social-links a:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

.footer-social-links svg {
  flex-shrink: 0;
}

/* LinkedIn */
.btn-linkedin {
  background-color: #0077b5;
}

/* GitHub */
.btn-github {
  background-color: #24292e;
}

/* WhatsApp */
.btn-whatsapp {
  background-color: #25d366;
}

/*.footer-social-links {
  display: flex;
  gap: 1rem;
} 

.footer-social-btn {
  color: var(--text-muted);
  font-size: 1.15rem;
  transition: color var(--transition-fast);
}

.footer-social-btn:hover {
  color: var(--telemetry-cyan);
} */

/* --- Toast Notification Component --- */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast-msg {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  border: 1px solid var(--telemetry-cyan);
  box-shadow: var(--shadow-lg);
  padding: 0.85rem 1.35rem;
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.84rem;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  animation: slideInUp 0.3s ease;
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- Responsive Media Queries --- */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .hero-title {
    font-size: 2.4rem;
  }

  .hero-stats-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .metrics-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .synthetic-item {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }

  .synthetic-item .syn-name-col {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  .status-metrics {
    display: none;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-default);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1.25rem;
  }

  .main-nav.mobile-active {
    display: flex;
  }

  .mobile-menu-btn {
    display: block;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .timeline::before {
    left: 12px;
  }

  .timeline-item {
    padding-left: 36px;
  }

  .timeline-node {
    left: 3px;
  }

  .trace-span-row {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .trace-duration {
    text-align: left;
  }
}

@media (max-width: 480px) {
  .hero-stats-row {
    grid-template-columns: 1fr;
  }

  .metrics-cards-grid {
    grid-template-columns: 1fr;
  }

  .contact-channels-grid {
    grid-template-columns: 1fr;
  }

  .contact-card-box {
    padding: 2rem 1.25rem;
  }
}