/* ==========================================================================
   YAFET ASSEFA — PERSONAL PORTFOLIO DESIGN SYSTEM & STYLESHEET
   Design Principle: Engineering Precision Meets Creative Expression
   Tokens: Dark Navy, Electric-Blue Highlighting, Clean Grids, Polished Motion
   ========================================================================== */

:root {
  /* Color Palette Tokens */
  --bg-main: #080F17;
  --bg-secondary: #0B1420;
  --card-bg: #101E2D;
  --card-elevated: #132336;
  --card-hover: #16293f;
  
  --accent-primary: #168BFF;
  --accent-secondary: #56B4FF;
  --accent-glow: rgba(22, 139, 255, 0.25);
  --accent-glow-subtle: rgba(22, 139, 255, 0.08);

  --text-main: #EAF2FA;
  --text-supporting: #A8B8C8;
  --text-muted: #75879A;

  --border-subtle: #223447;
  --border-hover: #37638A;
  --border-focus: #168BFF;

  --color-success: #10B981;
  --color-error: #EF4444;
  --color-amber: #F59E0B;

  /* Typography */
  --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Layout & Spacing */
  --max-width: 1440px;
  --gutter-desktop: 48px;
  --gutter-mobile: 20px;
  --nav-height: 74px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 280ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 450ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Theme Variables (Carefully engineered to preserve high contrast and precision) */
[data-theme="light"] {
  --bg-main: #F4F7FB;
  --bg-secondary: #E8EEF5;
  --card-bg: #FFFFFF;
  --card-elevated: #FFFFFF;
  --card-hover: #F0F5FA;

  --accent-primary: #0C75E6;
  --accent-secondary: #0060CA;
  --accent-glow: rgba(12, 117, 230, 0.2);
  --accent-glow-subtle: rgba(12, 117, 230, 0.06);

  --text-main: #0B1420;
  --text-supporting: #3E5166;
  --text-muted: #64748B;

  --border-subtle: #D2DEEC;
  --border-hover: #98B8DB;
  --border-focus: #0C75E6;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 24px);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Subtle Engineering Grid Backdrop */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(34, 52, 71, 0.15) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(34, 52, 71, 0.15) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
  z-index: -1;
  opacity: 0.6;
}

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

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

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

ul, ol {
  list-style: none;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

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

@media (max-width: 768px) {
  .container {
    padding-left: var(--gutter-mobile);
    padding-right: var(--gutter-mobile);
  }
}

/* Section Common Structure */
.section {
  padding: 100px 0;
  position: relative;
}

.section-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-subtle) 20%, var(--border-subtle) 80%, transparent);
}

.section-header {
  margin-bottom: 56px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-secondary);
  margin-bottom: 12px;
}

.section-tag::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-primary);
  box-shadow: 0 0 10px var(--accent-primary);
}

.section-title {
  font-size: clamp(2rem, 3.2vw, 2.75rem);
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 16px;
}

.section-description {
  font-size: 1.1rem;
  color: var(--text-supporting);
  max-width: 680px;
  line-height: 1.65;
}

/* Focus Outline for Accessibility */
:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 3px;
}

/* ==========================================================================
   NAVIGATION BAR
   ========================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: background-color var(--transition-normal), border-color var(--transition-normal), backdrop-filter var(--transition-normal);
  background: rgba(8, 15, 23, 0.7);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(34, 52, 71, 0.6);
}

.navbar.scrolled {
  background: rgba(8, 15, 23, 0.94);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  color: var(--text-main);
}

.monogram-badge {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--card-elevated), var(--card-bg));
  border: 1px solid var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--accent-secondary);
  box-shadow: 0 0 15px var(--accent-glow);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-supporting);
  position: relative;
  padding: 6px 0;
  transition: color var(--transition-fast);
}

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

.nav-link.active::after,
.nav-link:hover::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-primary);
  box-shadow: 0 0 8px var(--accent-primary);
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Theme Toggle Button */
.btn-theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: var(--card-bg);
  color: var(--text-supporting);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.btn-theme-toggle:hover {
  border-color: var(--border-hover);
  color: var(--accent-secondary);
  box-shadow: 0 0 12px var(--accent-glow-subtle);
}

/* Standard Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  white-space: nowrap;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), #0070ea);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 18px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(22, 139, 255, 0.4);
  filter: brightness(1.08);
}

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

.btn-secondary:hover {
  background: var(--card-elevated);
  border-color: var(--border-hover);
  color: var(--accent-secondary);
  transform: translateY(-2px);
}

.btn-outline {
  border: 1px solid var(--border-subtle);
  color: var(--text-supporting);
}

.btn-outline:hover {
  border-color: var(--accent-primary);
  color: var(--text-main);
  background: var(--accent-glow-subtle);
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  align-items: center;
  justify-content: center;
}

.mobile-menu {
  display: none;
}

@media (max-width: 992px) {
  .nav-links, .nav-actions .btn-download-cv {
    display: none;
  }
  .mobile-toggle {
    display: flex;
  }
  .mobile-menu {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(8, 15, 23, 0.98);
    backdrop-filter: blur(20px);
    padding: 32px var(--gutter-mobile);
    gap: 20px;
    z-index: 999;
    border-top: 1px solid var(--border-subtle);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-normal);
  }
  .mobile-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .mobile-menu .nav-link {
    font-size: 1.25rem;
    font-family: var(--font-heading);
    padding: 12px 0;
    border-bottom: 1px solid rgba(34, 52, 71, 0.4);
  }
  .mobile-menu .mobile-actions {
    margin-top: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--nav-height) + 40px);
  padding-bottom: 80px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
  position: relative;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-intro {
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent-secondary);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-name {
  font-size: clamp(3rem, 5.5vw, 4.8rem);
  font-weight: 800;
  line-height: 1.05;
  margin-bottom: 16px;
  letter-spacing: -0.03em;
}

.hero-name span.accent-name {
  color: var(--accent-primary);
  text-shadow: 0 0 35px var(--accent-glow);
}

.hero-role {
  font-size: clamp(1.05rem, 1.8vw, 1.35rem);
  font-weight: 500;
  color: var(--text-supporting);
  margin-bottom: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.hero-role .divider {
  color: var(--accent-primary);
  opacity: 0.7;
}

.hero-bio {
  font-size: 1.1rem;
  color: var(--text-supporting);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 580px;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 36px;
}

.hero-quote-box {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  background: rgba(16, 30, 45, 0.6);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent-primary);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  color: var(--text-main);
  font-style: italic;
  margin-bottom: 32px;
}

.hero-socials {
  display: flex;
  align-items: center;
  gap: 14px;
}

.social-icon-link {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  color: var(--text-supporting);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.social-icon-link:hover {
  background: var(--card-elevated);
  border-color: var(--accent-primary);
  color: var(--accent-secondary);
  transform: translateY(-3px);
  box-shadow: 0 4px 15px var(--accent-glow);
}

/* Hero Media Column */
.hero-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6), 0 0 30px var(--accent-glow-subtle);
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(8, 15, 23, 0.45) 0%, transparent 60%);
  z-index: 1;
  pointer-events: none;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 16 / 10;
  transition: transform var(--transition-slow);
}

.hero-visual:hover .hero-img {
  transform: scale(1.02);
}

.hero-badge-overlay {
  position: absolute;
  bottom: 20px;
  left: 20px;
  z-index: 2;
  background: rgba(8, 15, 23, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 10px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-badge-overlay .indicator {
  width: 10px;
  height: 10px;
  background: var(--color-success);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--color-success);
}

.hero-badge-overlay .badge-text {
  font-size: 0.82rem;
  color: var(--text-main);
  font-weight: 600;
}

.hero-badge-overlay .badge-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
}

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-visual {
    order: -1;
    max-width: 600px;
    margin: 0 auto;
  }
}

/* ==========================================================================
   ABOUT & THREE-COLUMN OVERVIEW
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 0.8fr;
  gap: 32px;
}

.about-card {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal), border-color var(--transition-normal);
}

.about-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

.about-card-title {
  font-size: 1.45rem;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-main);
}

.about-card-title .icon-wrap {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--accent-glow-subtle);
  border: 1px solid var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-secondary);
}

.about-bio-text {
  color: var(--text-supporting);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 18px;
}

/* Skills list inside column 2 */
.skills-mini-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.skill-mini-item {
  padding: 12px 14px;
  background: var(--card-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

.skill-mini-item:hover {
  border-color: var(--accent-primary);
}

.skill-mini-header {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-main);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.skill-mini-desc {
  font-size: 0.85rem;
  color: var(--text-supporting);
  line-height: 1.4;
}

/* Quick facts inside column 3 */
.quick-facts-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.fact-item {
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(34, 52, 71, 0.4);
}

.fact-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.fact-label {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.fact-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
}

.fact-value.highlight {
  color: var(--accent-secondary);
}

@media (max-width: 1080px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   FEATURED PROJECTS SECTION
   ========================================================================== */
.projects-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}

.filter-btn {
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  color: var(--text-supporting);
  transition: all var(--transition-fast);
}

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

.filter-btn.active {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #FFFFFF;
  box-shadow: 0 2px 12px var(--accent-glow);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

@media (max-width: 1200px) {
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
}

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

.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-hover);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.45), 0 0 20px var(--accent-glow-subtle);
}

.project-thumbnail-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg-secondary);
}

.project-thumbnail {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-card:hover .project-thumbnail {
  transform: scale(1.05);
}

.project-status-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(8, 15, 23, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-subtle);
  color: var(--accent-secondary);
}

.project-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

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

.project-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
  line-height: 1.3;
}

.project-card-summary {
  font-size: 0.9rem;
  color: var(--text-supporting);
  line-height: 1.55;
  margin-bottom: 18px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.project-tag-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.project-chip {
  font-size: 0.72rem;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  background: var(--card-elevated);
  border: 1px solid rgba(34, 52, 71, 0.6);
  color: var(--text-muted);
}

.project-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid rgba(34, 52, 71, 0.4);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent-secondary);
}

.project-card-footer .arrow {
  transition: transform var(--transition-fast);
}

.project-card:hover .project-card-footer .arrow {
  transform: translateX(4px);
}

/* ==========================================================================
   SKILLS SECTION (DETAILED BREAKDOWN)
   ========================================================================== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

@media (max-width: 992px) {
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .skills-grid {
    grid-template-columns: 1fr;
  }
}

.skill-category-card {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all var(--transition-normal);
}

.skill-category-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.35);
}

.skill-cat-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.skill-cat-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--card-elevated);
  border: 1px solid var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-secondary);
}

.skill-cat-title {
  font-size: 1.25rem;
  color: var(--text-main);
  line-height: 1.2;
}

.skill-cat-subtitle {
  font-size: 0.8rem;
  color: var(--accent-secondary);
  font-weight: 500;
}

.skill-cat-desc {
  font-size: 0.92rem;
  color: var(--text-supporting);
  line-height: 1.5;
  margin-bottom: 20px;
}

.skill-items-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.skill-item-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-main);
}

.skill-item-bullet {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-primary);
  box-shadow: 0 0 6px var(--accent-primary);
}

/* ==========================================================================
   EXPERIENCE & EDUCATION TIMELINE
   ========================================================================== */
.timeline-wrap {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 20px 0;
}

.timeline-wrap::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 28px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-primary), var(--border-subtle) 80%, transparent);
}

.timeline-item {
  position: relative;
  padding-left: 76px;
  margin-bottom: 48px;
}

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

.timeline-marker {
  position: absolute;
  left: 19px;
  top: 4px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg-main);
  border: 3px solid var(--accent-primary);
  box-shadow: 0 0 12px var(--accent-primary);
}

.timeline-card {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px 30px;
  transition: all var(--transition-normal);
}

.timeline-card:hover {
  border-color: var(--border-hover);
  transform: translateX(4px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.timeline-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.timeline-year-chip {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-secondary);
  background: var(--card-elevated);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
}

.timeline-badge {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #FFFFFF;
  background: var(--accent-primary);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
}

.timeline-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.timeline-role {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--accent-secondary);
  margin-bottom: 12px;
}

.timeline-desc {
  font-size: 0.95rem;
  color: var(--text-supporting);
  line-height: 1.6;
  margin-bottom: 12px;
}

.timeline-highlight-box {
  background: var(--card-elevated);
  border-left: 3px solid var(--accent-primary);
  padding: 8px 14px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.88rem;
  color: var(--text-main);
  font-weight: 500;
}

/* ==========================================================================
   MUSIC & CREATIVE WORK SECTION
   ========================================================================== */
.music-wrapper {
  background: linear-gradient(180deg, var(--bg-main) 0%, #0d1722 50%, var(--bg-main) 100%);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.music-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.music-visual {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  position: relative;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5), 0 0 24px rgba(245, 158, 11, 0.1);
}

.music-img {
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
}

.music-specs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 28px 0;
}

.music-spec-card {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 18px;
}

.music-spec-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.music-spec-value {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

.music-spec-value.gold {
  color: #FBBF24;
}

.music-interests-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 30px;
}

.music-interest-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-supporting);
}

.music-interest-item::before {
  content: "♪";
  color: var(--accent-secondary);
  font-weight: bold;
}

.audio-slot-card {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.audio-info h4 {
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.audio-info p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.audio-status-pill {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: var(--card-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  white-space: nowrap;
}

@media (max-width: 992px) {
  .music-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-card-box {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

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

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--card-elevated);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-secondary);
  flex-shrink: 0;
}

.contact-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
  margin-bottom: 2px;
}

.contact-val {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  word-break: break-all;
}

.contact-form-card {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-main);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

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

.form-input:focus,
.form-textarea:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 12px var(--accent-glow);
  outline: none;
}

.form-feedback {
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  display: none;
}

.form-feedback.success {
  display: block;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid var(--color-success);
  color: var(--color-success);
}

.form-feedback.error {
  display: block;
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid var(--color-error);
  color: var(--color-error);
}

@media (max-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   PROJECT DETAIL MODAL & PAGES
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(5, 10, 16, 0.85);
  backdrop-filter: blur(16px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  overflow-y: auto;
}

.modal-backdrop.active {
  display: flex;
}

.project-modal {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  max-width: 960px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.7);
  animation: modalFadeIn 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalFadeIn {
  from { opacity: 0; transform: translateY(18px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-close-btn {
  position: sticky;
  top: 16px;
  right: 16px;
  float: right;
  z-index: 10;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(8, 15, 23, 0.85);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all var(--transition-fast);
}

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

.modal-header-image {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  border-bottom: 1px solid var(--border-subtle);
}

.modal-body {
  padding: 36px 40px;
}

.modal-pill-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.modal-title {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}

.modal-meta-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  background: var(--card-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px 24px;
  margin: 24px 0 32px 0;
}

.modal-meta-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.modal-meta-val {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
}

.modal-section-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 28px 0 12px 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.modal-section-title::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 18px;
  background: var(--accent-primary);
  border-radius: 2px;
}

.modal-prose {
  font-size: 1rem;
  color: var(--text-supporting);
  line-height: 1.7;
  margin-bottom: 16px;
}

.modal-process-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 16px 0;
}

.modal-process-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--card-elevated);
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(34, 52, 71, 0.5);
}

.modal-process-num {
  font-weight: 800;
  color: var(--accent-secondary);
  font-size: 0.95rem;
}

@media (max-width: 768px) {
  .modal-body {
    padding: 24px 20px;
  }
  .modal-meta-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
  padding: 60px 0 36px 0;
  font-size: 0.92rem;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 40px;
}

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

.footer-tagline {
  color: var(--text-muted);
  font-style: italic;
  font-size: 0.92rem;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 28px;
  border-top: 1px solid rgba(34, 52, 71, 0.4);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.back-to-top-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-supporting);
  font-weight: 600;
  transition: color var(--transition-fast);
}

.back-to-top-btn:hover {
  color: var(--accent-secondary);
}

/* Print styles */
@media print {
  .navbar, .btn-theme-toggle, .mobile-toggle, .site-footer, .hero-ctas {
    display: none !important;
  }
  body {
    background: #FFFFFF !important;
    color: #000000 !important;
  }
}