/* ==========================================================================
   Gideon Kamanda — Portfolio Stylesheet
   Modern, Accessible, Clean & Responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
  /* Light Theme (Default) */
  --bg-base: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-tinted: #eff6ff;
  
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-faint: #64748b;
  
  --border-subtle: #e2e8f0;
  --border-accent: #cbd5e1;
  
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-soft: #dbeafe;
  --accent: #0284c7;
  --accent-soft: #e0f2fe;
  --success: #10b981;
  
  --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 25px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
  --shadow-hover: 0 20px 30px -5px rgba(37, 99, 235, 0.12), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;
  
  --max-width: 1180px;
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

/* Dark Theme */
body.dark {
  --bg-base: #0a0f1d;
  --bg-surface: #111827;
  --bg-surface-elevated: #1f293d;
  --bg-subtle: #162032;
  --bg-tinted: #0f1c34;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-faint: #64748b;
  
  --border-subtle: #1e293b;
  --border-accent: #334155;
  
  --primary: #3b82f6;
  --primary-hover: #60a5fa;
  --primary-soft: #1e3a5f;
  --accent: #38bdf8;
  --accent-soft: #0c4a6e;
  --success: #34d399;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 8px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 28px -4px rgba(0, 0, 0, 0.5);
  --shadow-hover: 0 20px 35px -5px rgba(59, 130, 246, 0.2);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg-base);
  color: var(--text-main);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  min-height: 100vh;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  overflow-x: hidden;
}

img, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

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

button, input, textarea {
  font: inherit;
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--primary);
  color: #ffffff;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transform: translateY(-200%);
  transition: transform var(--transition-fast);
}

.skip-link:focus {
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   Layout Helpers
   -------------------------------------------------------------------------- */
.container {
  width: min(100% - 40px, var(--max-width));
  margin-inline: auto;
}

.section {
  padding: 80px 0;
}

.section-tinted {
  background-color: var(--bg-tinted);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.section-header {
  margin-bottom: 40px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary);
  margin-bottom: 8px;
}

.section-title {
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--text-main);
  margin-bottom: 12px;
}

.section-lead {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 650px;
}

/* --------------------------------------------------------------------------
   Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: color-mix(in srgb, var(--bg-surface) 88%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}

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

.brand-badge {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #ffffff;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-weight: 700;
  font-size: 1.025rem;
  line-height: 1.2;
}

.brand-title {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  padding: 8px 14px;
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

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

.btn-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-icon:hover {
  color: var(--text-main);
  background-color: var(--bg-subtle);
  border-color: var(--border-accent);
}

.menu-toggle {
  display: none;
}

/* --------------------------------------------------------------------------
   Hero Section & Dynamic Typing
   -------------------------------------------------------------------------- */
.hero-section {
  padding: 70px 0 80px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--success);
  position: relative;
}

.status-dot::after {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background-color: var(--success);
  opacity: 0.4;
  animation: pulse 2s infinite ease-out;
}

@keyframes pulse {
  0% { transform: scale(1); opacity: 0.5; }
  100% { transform: scale(2.2); opacity: 0; }
}

.hero-title {
  font-size: clamp(2.4rem, 4.8vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.04em;
  margin-bottom: 20px;
  min-height: 2.3em;
}

.dynamic-typed {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.typed-cursor {
  display: inline-block;
  color: var(--primary);
  font-weight: 400;
  animation: blink 1s step-start infinite;
  margin-left: 2px;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero-description {
  font-size: 1.15rem;
  line-height: 1.65;
  color: var(--text-muted);
  max-width: 580px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 36px;
}

.hero-socials {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
  flex-wrap: wrap;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.social-link:hover {
  color: var(--primary);
}

/* Portrait Card */
.portrait-container {
  position: relative;
}

.portrait-container::before {
  content: "";
  position: absolute;
  inset: -8px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: calc(var(--radius-lg) + 8px);
  opacity: 0.25;
  filter: blur(14px);
  z-index: 0;
}

.portrait-card {
  position: relative;
  z-index: 1;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 14px;
  box-shadow: var(--shadow-lg);
}

.portrait-img {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.portrait-meta {
  padding: 14px 4px 4px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.portrait-name {
  font-weight: 700;
  font-size: 1rem;
}

.portrait-sub {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
  background-color: var(--bg-surface);
  border-color: var(--border-accent);
  color: var(--text-main);
  box-shadow: var(--shadow-sm);
}

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

.btn-outline {
  background-color: transparent;
  border-color: var(--border-accent);
  color: var(--text-muted);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background-color: var(--bg-subtle);
}

.btn-sm {
  min-height: 36px;
  padding: 6px 12px;
  font-size: 0.835rem;
  border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   Stats Banner
   -------------------------------------------------------------------------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: -20px;
  margin-bottom: 60px;
}

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

.stat-number {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1;
  color: var(--primary);
  letter-spacing: -0.03em;
}

.stat-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   About Section & Competencies
   -------------------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-md);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: var(--bg-tinted);
  color: var(--primary);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.card-title {
  font-size: 1.35rem;
  font-weight: 700;
}

.card-body {
  color: var(--text-muted);
  font-size: 0.975rem;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.coursework-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.pill {
  font-size: 0.775rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background-color: var(--bg-subtle);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
}

/* Competencies Banner */
.competencies-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  box-shadow: var(--shadow-sm);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.comp-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.comp-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.comp-desc {
  font-size: 0.8875rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   Projects Section & Filters
   -------------------------------------------------------------------------- */
.projects-header-wrapper {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  background-color: var(--bg-surface);
  padding: 6px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
}

.filter-btn {
  padding: 6px 16px;
  border-radius: var(--radius-full);
  border: 0;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  color: var(--text-main);
}

.filter-btn.active {
  background-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.project-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

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

.project-media {
  position: relative;
  aspect-ratio: 16/9;
  background-color: var(--bg-subtle);
  overflow: hidden;
  cursor: pointer;
}

.project-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.project-card:hover .project-media img {
  transform: scale(1.03);
}

.media-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
  color: #ffffff;
  font-size: 0.875rem;
  font-weight: 600;
  gap: 8px;
}

.project-media:hover .media-overlay,
.project-media:focus-visible .media-overlay {
  opacity: 1;
}

/* Custom Vector Placeholders */
.project-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  text-align: center;
  background: linear-gradient(135deg, #1e3a8a, #0284c7);
  color: #ffffff;
}

.project-placeholder.trading {
  background: linear-gradient(135deg, #0f172a, #0d9488);
}

.project-placeholder.nova {
  background: linear-gradient(135deg, #1e1b4b, #4f46e5, #06b6d4);
}

.project-placeholder.studentspend {
  background: linear-gradient(135deg, #064e3b, #059669, #10b981);
}

.project-placeholder.planora {
  background: linear-gradient(135deg, #312e81, #4338ca, #3b82f6);
}

.placeholder-icon {
  margin-bottom: 12px;
  opacity: 0.9;
}

.placeholder-title {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.placeholder-sub {
  font-size: 0.85rem;
  opacity: 0.8;
  margin-top: 4px;
}

.project-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  margin-bottom: 8px;
}

.project-title {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}

.project-desc {
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 18px;
}

.tech-tag {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-subtle);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
}

/* --------------------------------------------------------------------------
   Interactive Architecture Flow Diagram (AquaMetra)
   -------------------------------------------------------------------------- */
.arch-diagram-box {
  background-color: var(--bg-base);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  margin: 16px 0 8px;
}

.arch-title {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.arch-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  position: relative;
}

.arch-node {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 10px 8px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  box-shadow: var(--shadow-sm);
}

.node-icon {
  color: var(--primary);
}

.node-label {
  font-weight: 700;
  font-size: 0.78rem;
  color: var(--text-main);
  line-height: 1.2;
}

.node-sub {
  font-size: 0.68rem;
  color: var(--text-muted);
}

.node-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent);
  font-weight: 800;
  font-size: 1rem;
}

.project-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
  margin-top: auto;
  gap: 10px;
  flex-wrap: wrap;
}

.project-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
}

.project-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Accordion details in projects */
.project-details {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--border-subtle);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.project-details summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
}

.project-details summary:hover {
  text-decoration: underline;
}

.project-details-img {
  margin-top: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
}

.is-hidden {
  display: none !important;
}

/* --------------------------------------------------------------------------
   Skills Section
   -------------------------------------------------------------------------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.skill-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

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

.skill-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: var(--bg-tinted);
  color: var(--primary);
  display: grid;
  place-items: center;
  margin-bottom: 16px;
}

.skill-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.skill-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-subtle);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.skill-badge:hover {
  border-color: var(--primary);
  background-color: var(--primary-soft);
  color: var(--primary);
}

/* --------------------------------------------------------------------------
   Experience Section
   -------------------------------------------------------------------------- */
.experience-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.experience-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 6px;
  height: 100%;
  background: linear-gradient(180deg, var(--primary), var(--accent));
}

.experience-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.role-title {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.company-name {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--primary);
  margin-top: 2px;
}

.role-duration {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--accent);
  background-color: var(--accent-soft);
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.experience-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 20px;
}

.experience-points li {
  position: relative;
  padding-left: 24px;
  font-size: 0.975rem;
  color: var(--text-muted);
}

.experience-points li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 800;
  font-size: 1.1rem;
  line-height: 1.4;
}

/* --------------------------------------------------------------------------
   Contact Section
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 40px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-method-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.contact-method-card:hover {
  border-color: var(--primary);
  transform: translateX(4px);
}

.method-details {
  display: flex;
  align-items: center;
  gap: 14px;
}

.method-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-tinted);
  color: var(--primary);
  display: grid;
  place-items: center;
}

.method-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

.method-value {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
}

.contact-form-container {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

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

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

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
}

.form-input, .form-textarea {
  padding: 12px 16px;
  background-color: var(--bg-base);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
  outline: none;
}

.form-status {
  font-size: 0.875rem;
  font-weight: 600;
  margin-top: 4px;
}

.form-status.success {
  color: var(--success);
}

.form-status.error {
  color: #ef4444;
}

/* --------------------------------------------------------------------------
   Native Dialog Modal (Image Lightbox)
   -------------------------------------------------------------------------- */
.modal-dialog {
  border: 0;
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  color: var(--text-main);
  padding: 0;
  max-width: min(92vw, 1080px);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  margin: auto;
  overflow: hidden;
}

.modal-dialog::backdrop {
  background: rgba(10, 15, 29, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 700;
}

.modal-close {
  background: transparent;
  border: 0;
  cursor: pointer;
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background-color: var(--bg-subtle);
  color: var(--text-main);
}

.modal-body {
  padding: 16px;
  background-color: var(--bg-base);
}

.modal-body img {
  width: 100%;
  max-height: 75vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

/* --------------------------------------------------------------------------
   Toast Notification
   -------------------------------------------------------------------------- */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  background-color: var(--text-main);
  color: var(--bg-base);
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  transform: translateY(120%);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  pointer-events: none;
}

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

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  padding: 40px 0;
  border-top: 1px solid var(--border-subtle);
  background-color: var(--bg-surface);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 16px;
}

.footer-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
}

.footer-link:hover {
  color: var(--primary);
}

/* --------------------------------------------------------------------------
   Responsive Media Queries
   -------------------------------------------------------------------------- */
@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .portrait-container {
    max-width: 420px;
    margin-inline: auto;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .skills-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .competencies-card {
    grid-template-columns: 1fr;
  }
  
  .arch-flow {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 74px;
    left: 0;
    right: 0;
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-subtle);
    flex-direction: column;
    padding: 20px;
    gap: 8px;
    box-shadow: var(--shadow-lg);
  }
  
  .nav-links.open {
    display: flex;
  }
  
  .menu-toggle {
    display: inline-flex;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .about-grid {
    grid-template-columns: 1fr;
  }
  
  .skills-grid {
    grid-template-columns: 1fr;
  }
  
  .projects-header-wrapper {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 520px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .hero-actions .btn {
    width: 100%;
  }
  
  .footer-content {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .arch-flow {
    grid-template-columns: 1fr;
  }
}