/* ==========================================================================
   Olakunle Tomomewo - Cloud Engineer Portfolio
   Design inspired by modern dark card layout with geometric polygon art
   ========================================================================== */

/* Root Variables & Theme Tokens */
:root {
  /* Color Palette - Dark Theme (Default) */
  --bg-body: #101216;
  --bg-card: #1b1e26;
  --bg-card-hover: #222631;
  --bg-card-elevated: #15181f;
  --bg-surface: #242936;
  --bg-dock: #1b1e26;
  --bg-dock-btn: #181b22;
  --bg-dock-btn-hover: #262c3b;
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #0f172a;
  
  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-focus: rgba(37, 99, 235, 0.5);
  --border-active: #2563eb;

  /* Accent Colors */
  --accent-blue: #2563eb;
  --accent-blue-light: #38bdf8;
  --accent-blue-glow: rgba(37, 99, 235, 0.35);
  --accent-orange: #f97316;
  --accent-orange-light: #fb923c;
  --accent-teal: #06b6d4;
  --accent-green: #10b981;
  --accent-purple: #a855f7;
  --accent-crimson: #e11d48;

  /* Gradients */
  --grad-primary-btn: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  --grad-accent-bar: linear-gradient(90deg, #f97316 0%, #f97316 48%, #38bdf8 52%, #38bdf8 100%);
  --grad-badge-glow: radial-gradient(circle at 50% 0%, rgba(37, 99, 235, 0.15) 0%, transparent 70%);
  
  /* Shadows */
  --shadow-card: 0 16px 36px -8px rgba(0, 0, 0, 0.45), 0 0 0 1px var(--border-subtle);
  --shadow-card-hover: 0 24px 48px -12px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.12);
  --shadow-dock-active: 0 10px 24px -4px rgba(37, 99, 235, 0.5);
  --shadow-modal: 0 25px 60px -15px rgba(0, 0, 0, 0.8), 0 0 0 1px var(--border-subtle);

  /* Geometry & Metrics */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 30px;
  --radius-pill: 9999px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-body: #edf1f7;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --bg-card-elevated: #f1f5f9;
  --bg-surface: #e2e8f0;
  --bg-dock: #ffffff;
  --bg-dock-btn: #f8fafc;
  --bg-dock-btn-hover: #e2e8f0;
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-inverse: #f8fafc;
  
  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-focus: rgba(37, 99, 235, 0.4);
  --border-active: #2563eb;

  --accent-blue: #2563eb;
  --accent-blue-light: #0284c7;
  --accent-blue-glow: rgba(37, 99, 235, 0.2);

  --shadow-card: 0 12px 30px -6px rgba(15, 23, 42, 0.08), 0 0 0 1px var(--border-subtle);
  --shadow-card-hover: 0 20px 40px -10px rgba(15, 23, 42, 0.14), 0 0 0 1px rgba(37, 99, 235, 0.2);
  --shadow-dock-active: 0 8px 20px -3px rgba(37, 99, 235, 0.4);
  --shadow-modal: 0 25px 60px -15px rgba(15, 23, 42, 0.25), 0 0 0 1px var(--border-subtle);
  --grad-badge-glow: radial-gradient(circle at 50% 0%, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  height: 100%;
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-body);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  position: relative;
}

a {
  color: inherit;
  text-decoration: none;
}

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

/* ==========================================================================
   Geometric Polygon Art (Left Margin Signature Graphic)
   ========================================================================== */
.polygon-art-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 140px;
  height: 100vh;
  pointer-events: none;
  z-index: 1;
  overflow: visible;
  opacity: 0.95;
  transition: opacity var(--transition-normal);
}

.polygon-svg {
  position: absolute;
  top: 15px;
  left: 0;
  width: 130px;
  height: 600px;
  filter: drop-shadow(4px 10px 20px rgba(0, 0, 0, 0.3));
}

/* ==========================================================================
   Page Container & Main Layout
   ========================================================================== */
.site-wrapper {
  position: relative;
  z-index: 2;
  max-width: 1240px;
  margin: 0 auto;
  padding: 32px 24px 60px 100px; /* Left padding provides breathing room for the polygon art */
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

/* ==========================================================================
   Top Header Card
   ========================================================================== */
.header-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: 24px 32px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-subtle);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  position: relative;
  transition: background var(--transition-normal), box-shadow var(--transition-normal), border var(--transition-normal);
}

/* Avatar Pod */
.avatar-pod {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.avatar-container {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  padding: 3px;
  background: linear-gradient(135deg, #0ea5e9, #2563eb, #f97316);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.35);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.avatar-container:hover {
  transform: scale(1.03);
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.45);
}

.avatar-img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 15%; /* Frames face and white hat nicely */
  display: block;
  background: var(--bg-surface);
}

/* Small indicator pointer on avatar */
.avatar-pod::after {
  content: "";
  position: absolute;
  right: -8px;
  width: 0;
  height: 0;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-left: 8px solid var(--accent-orange);
  display: none;
}

/* Identity / Name & Subtitle */
.identity-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.profile-name {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.2;
}

.profile-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: -0.01em;
}

.social-links {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 8px;
}

.social-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  color: var(--text-secondary);
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.social-icon-btn:hover {
  color: #ffffff;
  background: var(--accent-blue);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--accent-blue-glow);
}

.social-icon-btn svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* Header Meta Info (2x2 Grid) */
.header-meta-grid {
  display: grid;
  grid-template-columns: repeat(2, auto);
  gap: 18px 42px;
  align-items: center;
  padding-left: 24px;
  border-left: 1px solid var(--border-subtle);
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.meta-label {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.meta-value {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.meta-value svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
  opacity: 0.8;
}

.meta-link:hover {
  color: var(--accent-blue);
}

.status-badge-inline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-green);
  font-weight: 700;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-green);
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.8);
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.25); }
}

/* Header Action Controls (Theme Toggle) */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: 16px;
}

.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-size: 0.82rem;
  font-weight: 700;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  background: var(--bg-surface);
  border-color: var(--border-focus);
  transform: translateY(-1px);
}

.theme-icon-container {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
}

.theme-icon-container svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* ==========================================================================
   Main Content Area & Navigation Dock Layout
   ========================================================================== */
.main-layout {
  display: grid;
  grid-template-columns: 104px 1fr;
  gap: 28px;
  align-items: flex-start;
}

/* Navigation Dock (Left Column) */
.nav-dock {
  background: var(--bg-dock);
  border-radius: var(--radius-xl);
  padding: 18px 10px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: sticky;
  top: 24px;
  z-index: 10;
  transition: background var(--transition-normal), box-shadow var(--transition-normal);
}

.nav-tab-btn {
  width: 84px;
  height: 84px;
  border-radius: var(--radius-lg);
  background: var(--bg-dock-btn);
  border: 1px solid transparent;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--transition-fast);
  position: relative;
  user-select: none;
}

.nav-tab-btn .nav-icon {
  width: 26px;
  height: 26px;
  transition: transform var(--transition-fast);
}

.nav-tab-btn .nav-icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.nav-tab-btn .nav-label {
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-align: center;
  line-height: 1.1;
  padding: 0 4px;
}

/* Inactive button hover */
.nav-tab-btn:hover:not(.active) {
  background: var(--bg-dock-btn-hover);
  color: var(--text-primary);
  transform: translateY(-2px);
  border-color: var(--border-subtle);
}

/* Active Button State (Matching the reference's vibrant blue gradient pod!) */
.nav-tab-btn.active {
  background: var(--grad-primary-btn);
  color: #ffffff;
  box-shadow: var(--shadow-dock-active);
  border-color: rgba(255, 255, 255, 0.2);
}

.nav-tab-btn.active .nav-icon {
  transform: scale(1.1);
}

/* ==========================================================================
   Content Panel (Right Column)
   ========================================================================== */
.content-panel {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: 38px 42px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-subtle);
  min-height: 600px;
  position: relative;
  transition: background var(--transition-normal), box-shadow var(--transition-normal);
}

/* Section Title & Signature Accent Bar */
.section-header {
  margin-bottom: 28px;
}

.section-title {
  font-size: 2.1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 12px;
}

/* Signature Accent Pill (Dual-color orange & cyan/blue from screenshot) */
.title-accent-bar {
  width: 60px;
  height: 5px;
  border-radius: var(--radius-pill);
  background: var(--grad-accent-bar);
  margin-bottom: 12px;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 820px;
  line-height: 1.6;
}

/* Tab Panels Switching Animation */
.tab-content-panel {
  display: none;
  animation: fadeIn 0.35s ease-out forwards;
}

.tab-content-panel.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   Section 1: About Me
   ========================================================================== */
.about-bio-lead {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
}

.about-bio-lead strong {
  color: var(--text-primary);
}

/* Highlights Grid */
.about-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin: 32px 0;
}

.stat-card {
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.stat-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-focus);
}

.stat-number {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent-blue-light);
  font-family: 'JetBrains Mono', monospace;
  line-height: 1.1;
}

.stat-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* What I Do / Core Pillars Grid */
.section-subheading {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 36px 0 18px 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.pillar-card {
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: all var(--transition-fast);
}

.pillar-card:hover {
  border-color: rgba(37, 99, 235, 0.4);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.pillar-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pillar-icon-box {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: rgba(37, 99, 235, 0.12);
  color: var(--accent-blue-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.pillar-icon-box svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

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

.pillar-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Skills Matrix Tags */
.skills-group {
  margin-top: 32px;
}

.skills-tags-container {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.skill-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-subtle);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.skill-pill:hover {
  color: #ffffff;
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  transform: translateY(-1px);
}

/* ==========================================================================
   Section 2: Projects
   ========================================================================== */
.projects-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}

.filter-btn {
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-subtle);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  background: var(--bg-surface);
  color: var(--text-primary);
}

.filter-btn.active {
  background: var(--accent-blue);
  color: #ffffff;
  border-color: var(--accent-blue);
  box-shadow: 0 4px 12px var(--accent-blue-glow);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.project-card {
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-focus);
  box-shadow: var(--shadow-card-hover);
}

.project-header-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.project-category-tag {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: rgba(37, 99, 235, 0.15);
  color: var(--accent-blue-light);
  border: 1px solid rgba(37, 99, 235, 0.25);
}

.project-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.3;
  margin-top: 10px;
}

.project-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.project-metrics {
  background: rgba(0, 0, 0, 0.15);
  border-left: 3px solid var(--accent-green);
  border-radius: 4px;
  padding: 8px 12px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.project-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tech-tag {
  font-size: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  background: var(--bg-surface);
  color: var(--text-secondary);
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
}

.project-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
}

.btn-project {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.btn-project-primary {
  background: var(--accent-blue);
  color: #ffffff;
}

.btn-project-primary:hover {
  background: #1d4ed8;
  box-shadow: 0 4px 12px var(--accent-blue-glow);
}

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

.btn-project-secondary:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

/* ==========================================================================
   Section 3: Certifications
   ========================================================================== */
.certs-grid {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.cert-card {
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: grid;
  grid-template-columns: 80px 1fr auto;
  align-items: center;
  gap: 24px;
  transition: all var(--transition-fast);
}

.cert-card:hover {
  transform: translateX(4px);
  border-color: var(--border-focus);
  box-shadow: var(--shadow-card-hover);
}

.cert-badge-thumbnail {
  width: 72px;
  height: 84px;
  display: flex;
  align-items: center;
  justify-content: center;
  filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.3));
}

.cert-badge-thumbnail img,
.cert-badge-thumbnail svg {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.cert-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.cert-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.cert-name {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-primary);
}

.cert-status-badge {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-green);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.cert-meta-row {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.cert-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.cert-id-code {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  color: var(--text-secondary);
}

.cert-verify-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-size: 0.85rem;
  font-weight: 700;
  transition: all var(--transition-fast);
}

.cert-verify-btn:hover {
  background: var(--accent-blue);
  color: #ffffff;
  border-color: var(--accent-blue);
  box-shadow: 0 4px 12px var(--accent-blue-glow);
}

/* ==========================================================================
   Section 4: Badges (Requested AWS CCP, SAA, and Security Specialty)
   ========================================================================== */
.badges-container {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.badges-banner-info {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(249, 115, 22, 0.12));
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.badges-banner-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.badges-banner-text strong {
  color: var(--text-primary);
}

.credly-verify-badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #ff5a00;
  color: #ffffff;
  font-weight: 800;
  font-size: 0.78rem;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 10px rgba(255, 90, 0, 0.35);
  white-space: nowrap;
}

.badges-featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.aws-badge-card {
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 32px 24px 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-fast);
}

.aws-badge-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 140px;
  background: var(--grad-badge-glow);
  pointer-events: none;
}

.aws-badge-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-focus);
  box-shadow: var(--shadow-card-hover);
}

.badge-level-pill {
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 20px;
  border: 1px solid transparent;
}

.badge-pill-ccp {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border-color: rgba(245, 158, 11, 0.3);
}

.badge-pill-saa {
  background: rgba(14, 165, 233, 0.15);
  color: #38bdf8;
  border-color: rgba(14, 165, 233, 0.3);
}

.badge-pill-sec {
  background: rgba(225, 29, 72, 0.15);
  color: #fb7185;
  border-color: rgba(225, 29, 72, 0.3);
}

.badge-svg-wrapper {
  width: 170px;
  height: 200px;
  margin-bottom: 22px;
  filter: drop-shadow(0 12px 24px rgba(0, 0, 0, 0.45));
  transition: transform var(--transition-fast);
  cursor: pointer;
}

.aws-badge-card:hover .badge-svg-wrapper {
  transform: scale(1.05);
}

.badge-svg-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.badge-card-name {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 8px;
  min-height: 48px;
}

.badge-issuer-tag {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.badge-skills-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  margin-bottom: 24px;
}

.badge-skill-tag {
  font-size: 0.72rem;
  font-weight: 600;
  background: var(--bg-surface);
  color: var(--text-secondary);
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
}

.badge-verify-action {
  width: 100%;
  margin-top: auto;
}

.btn-badge-verify {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-size: 0.85rem;
  font-weight: 700;
  transition: all var(--transition-fast);
}

.btn-badge-verify:hover {
  background: var(--accent-blue);
  color: #ffffff;
  border-color: var(--accent-blue);
  box-shadow: 0 4px 12px var(--accent-blue-glow);
}

/* ==========================================================================
   Section 5: Contact Me
   ========================================================================== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 32px;
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-card-box {
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-channel-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.channel-icon-box {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(37, 99, 235, 0.15);
  color: var(--accent-blue-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.channel-icon-box svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.channel-detail {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.channel-title {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.channel-val {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.channel-copy-btn {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-blue-light);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 2px;
  cursor: pointer;
}

.channel-copy-btn:hover {
  text-decoration: underline;
}

/* Contact Form */
.contact-form-panel {
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-group-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

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

.form-label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--text-primary);
  outline: none;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px var(--border-focus);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-submit-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  background: var(--grad-primary-btn);
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  box-shadow: 0 6px 18px var(--accent-blue-glow);
  transition: all var(--transition-fast);
  margin-top: 6px;
}

.form-submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px var(--accent-blue-glow);
}

.form-submit-btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* ==========================================================================
   Modals (Credly Badge Verification & Architecture Viewer & Resume)
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(6px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-container {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  max-width: 620px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-modal);
  transform: scale(0.95);
  transition: transform var(--transition-fast);
  position: relative;
}

.modal-backdrop.open .modal-container {
  transform: scale(1);
}

.modal-header {
  padding: 20px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
}

.modal-close-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  background: var(--bg-card-elevated);
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: var(--accent-crimson);
  color: #ffffff;
}

.modal-body {
  padding: 28px;
}

/* ==========================================================================
   Toast Notification
   ========================================================================== */
.toast-notice {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-card);
  border: 1px solid var(--accent-blue);
  color: var(--text-primary);
  padding: 14px 20px;
  border-radius: var(--radius-md);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.88rem;
  font-weight: 700;
  z-index: 1100;
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition-fast);
}

.toast-notice.show {
  transform: translateY(0);
  opacity: 1;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1100px) {
  .site-wrapper {
    padding-left: 24px;
  }
  .polygon-art-wrapper {
    opacity: 0.4;
    width: 90px;
  }
  .badges-featured-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .header-card {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 20px;
  }
  .avatar-pod {
    margin: 0 auto;
  }
  .identity-info {
    align-items: center;
  }
  .header-meta-grid {
    border-left: none;
    border-top: 1px solid var(--border-subtle);
    padding-left: 0;
    padding-top: 18px;
    grid-template-columns: repeat(2, 1fr);
    justify-items: center;
  }
  .header-actions {
    margin: 0 auto;
  }
  .main-layout {
    grid-template-columns: 1fr;
  }
  .nav-dock {
    flex-direction: row;
    justify-content: space-around;
    position: static;
    top: 0;
    padding: 12px;
  }
  .nav-tab-btn {
    width: 68px;
    height: 68px;
  }
  .content-panel {
    padding: 28px 20px;
  }
  .about-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pillars-grid,
  .projects-grid,
  .badges-featured-grid,
  .contact-layout {
    grid-template-columns: 1fr;
  }
  .form-group-row {
    grid-template-columns: 1fr;
  }
  .cert-card {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .cert-badge-thumbnail {
    margin: 0 auto;
  }
  .cert-meta-row {
    justify-content: center;
  }
  .cert-title-group {
    justify-content: center;
  }
}

@media (max-width: 500px) {
  .nav-tab-btn {
    width: 56px;
    height: 56px;
  }
  .nav-tab-btn .nav-label {
    display: none;
  }
  .header-meta-grid {
    grid-template-columns: 1fr;
  }
}