:root {
  /* Dark Theme Variables (Default) */
  --bg-color-1: #060913;
  --bg-color-2: #121929;
  --glass-bg: rgba(30, 41, 59, 0.7);
  --glass-border: rgba(255, 255, 255, 0.1);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --accent-color: #3b82f6;
  --accent-secondary: #8b5cf6;
  --accent-glow: rgba(59, 130, 246, 0.4);
  --item-bg: rgba(30, 41, 59, 0.5);
  --item-hover-bg: rgba(30, 41, 59, 0.9);
  --nav-bg: rgba(6, 9, 19, 0.8);
  --timeline-line: #334155;
  --icon-invert: 1;
}

body.light-mode {
  /* Light Theme Variables */
  --bg-color-1: #f8fafc;
  --bg-color-2: #e2e8f0;
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(0, 0, 0, 0.1);
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --accent-color: #2563eb;
  --accent-secondary: #7c3aed;
  --accent-glow: rgba(37, 99, 235, 0.2);
  --item-bg: rgba(255, 255, 255, 0.6);
  --item-hover-bg: rgba(255, 255, 255, 1);
  --nav-bg: rgba(248, 250, 252, 0.85);
  --timeline-line: #cbd5e1;
  --icon-invert: 0;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Outfit', sans-serif;
  background: var(--bg-color-1);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  transition: background 0.3s ease, color 0.3s ease;
}

/* Background Orbs */
body::before,
body::after {
  content: '';
  position: fixed;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(140px);
  z-index: -1;
  opacity: 0.15;
  animation: float 20s infinite ease-in-out alternate;
  pointer-events: none;
}

body::before {
  background-color: var(--accent-color);
  top: -150px;
  left: -150px;
}

body::after {
  background-color: var(--accent-secondary);
  bottom: -150px;
  right: -150px;
  animation-delay: -10s;
}

@keyframes float {
  0% {
    transform: translate(0, 0) scale(1);
  }

  100% {
    transform: translate(50px, 30px) scale(1.1);
  }
}

/* Glassmorphism */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.15);
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

/* Top Navigation */
.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--nav-bg);
  border-radius: 0;
  border-left: none;
  border-right: none;
  border-top: none;
  padding: 1rem 0;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.nav-content {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 1rem;
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: var(--accent-color);
}

#theme-toggle {
  background: transparent;
  border: none;
  font-size: 1.2rem;
  color: var(--text-primary);
  cursor: pointer;
  transition: transform 0.3s ease, color 0.3s ease;
}

#theme-toggle:hover {
  transform: rotate(30deg);
  color: var(--accent-color);
}

/* Layout Containers */
.container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 20px;
}

.text-left {
  text-align: left !important;
}

/* Hero Section */
.hero {
  width: 100%;
  margin: 5rem 0 3rem 0;
  scroll-margin-top: 100px;
}

.hero-content {
  width: 100%;
}

.section-padding {
  padding: 4rem 3rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  align-items: flex-start;
}

.hero-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 1.5rem;
}

.profile-photo-container {
  margin-bottom: 0;
}

.profile-photo-container img {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--glass-border);
  padding: 5px;
  box-shadow: 0 0 30px var(--accent-glow);
  transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.hidden {
  display: none !important;
}

#name {
  font-size: 4rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  letter-spacing: -1px;
  color: var(--text-primary);
}

#roles {
  font-size: 1.4rem;
  color: var(--accent-color);
  margin-bottom: 1.5rem;
  font-weight: 500;
  letter-spacing: 1px;
}

.contact-column {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 1rem;
}

.contact-link {
  color: var(--text-secondary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: all 0.3s ease;
  font-size: 1rem;
  background: var(--item-bg);
  padding: 10px 20px;
  border-radius: 30px;
  border: 1px solid var(--glass-border);
  font-weight: 500;
  width: fit-content;
}

.contact-link:hover {
  color: var(--text-primary);
  background: var(--item-hover-bg);
  transform: translateX(-5px);
  box-shadow: 0 10px 20px -5px var(--accent-glow);
}

.contact-link i {
  color: var(--accent-color);
}

.copy-btn-inner {
  margin-left: 2px;
  color: var(--text-secondary);
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border-radius: 50%;
}

.copy-btn-inner i {
  font-size: 1rem;
  color: var(--text-secondary);
}

.copy-btn-inner:hover {
  background: var(--item-hover-bg);
  transform: scale(1.1);
}

.copy-btn-inner:hover i {
  color: var(--accent-color);
}

/* Active Blinking Animation */
.status-active {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.1);
  color: #10b981;
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid rgba(16, 185, 129, 0.3);
  font-size: 0.85rem;
  font-weight: 600;
}

.blink-dot {
  width: 8px;
  height: 8px;
  background-color: #10b981;
  border-radius: 50%;
  animation: blink 1.5s infinite ease-in-out;
  box-shadow: 0 0 8px #10b981;
}

@keyframes blink {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.3;
    transform: scale(0.8);
  }
}

/* Project Card */
.project-card {
  background: var(--item-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 1.8rem;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  background: var(--item-hover-bg);
  transform: translateY(-5px);
  border-color: var(--accent-color);
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.15);
}

.about-me {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 0 !important;
}

/* Layout Rows */
.layout-stack {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-bottom: 2rem;
}

.pane-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: stretch;
}

.pane-col {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.pane-col .section {
  margin-bottom: 0;
  flex: 1;
  /* Automatically stretches item to match adjacent column */
}

.section {
  padding: 2.5rem;
  margin-bottom: 2rem;
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s ease;
  scroll-margin-top: 100px;
}

.section:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 50px -10px rgba(0, 0, 0, 0.2);
}

.section h3 {
  font-size: 1.8rem;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-primary);
  font-weight: 700;
  border-bottom: 1px solid var(--glass-border);
  padding-bottom: 1rem;
}

.section h3 i {
  color: var(--accent-color);
}

.mt-2 {
  margin-top: 1rem;
}

.mt-3 {
  margin-top: 2rem;
}

/* Timeline (Experience & Education) */
.timeline {
  position: relative;
  padding-left: 20px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  bottom: 0;
  width: 4px;
  background: var(--glass-border);
  border-radius: 4px;
}

.timeline-item {
  position: relative;
  margin-bottom: 3rem;
  padding-left: 2rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -26px;
  top: 8px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-color-1);
  border: 4px solid var(--accent-color);
  box-shadow: 0 0 10px var(--accent-glow);
  transition: transform 0.3s ease;
}

.timeline-item:hover::before {
  transform: scale(1.3);
  background: var(--accent-secondary);
}

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

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  margin-bottom: 0.8rem;
}

.timeline-title {
  font-size: 1.4rem;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
  font-weight: 700;
}

.timeline-subtitle {
  font-size: 1.1rem;
  color: var(--accent-color);
  font-weight: 500;
}

.timeline-period {
  font-size: 0.9rem;
  background: var(--accent-glow);
  padding: 4px 12px;
  border-radius: 20px;
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  font-weight: 600;
}

.timeline-period.aligned-below {
  background: transparent;
  padding: 0;
  border: none;
  color: var(--text-secondary);
  margin-top: 0.3rem;
  font-size: 1rem;
  font-weight: 500;
}

.timeline-meta {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1rem;
  font-weight: 500;
}

.timeline-content p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.timeline-content ul {
  list-style-type: none;
}

.timeline-content ul li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.6rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.timeline-content ul li::before {
  content: '\f105';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  left: 0;
  color: var(--accent-secondary);
  font-size: 0.9rem;
}

/* Tag / Badges Container */
.tags-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.8rem;
  margin-bottom: 1.2rem;
}

.tag {
  background: var(--item-bg);
  color: var(--text-primary);
  padding: 0.3rem 0.6rem;
  border-radius: 6px;
  font-size: 0.8rem;
  border: 1px solid var(--glass-border);
  font-weight: 500;
}

/* Skills with Progress Bars */
.grid-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.skill-category {
  background: var(--item-bg);
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  transition: transform 0.3s ease;
}

.skill-category:hover {
  background: var(--item-hover-bg);
}

.skill-category h4 {
  font-size: 1.2rem;
  margin-bottom: 1.2rem;
  color: var(--text-primary);
  font-weight: 600;
}

.skill-item-container {
  margin-bottom: 1rem;
}

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

.skill-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.4rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
}

.progress-bar-bg {
  width: 100%;
  height: 8px;
  background: rgba(0, 0, 0, 0.1);
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--glass-border);
}

body.light-mode .progress-bar-bg {
  background: rgba(0, 0, 0, 0.05);
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-color), var(--accent-secondary));
  border-radius: 4px;
  width: 0;
  transition: width 1.5s cubic-bezier(0.1, 0.8, 0.2, 1);
  box-shadow: 0 0 10px var(--accent-glow);
}

/* List Containers (Achievements, Tasks) */
.list-container ul {
  list-style-type: none;
}

.list-container ul li {
  padding: 1rem;
  background: var(--item-bg);
  margin-bottom: 0.8rem;
  border-radius: 10px;
  border-left: 4px solid var(--accent-color);
  transition: all 0.3s ease;
  border-top: 1px solid var(--glass-border);
  border-right: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
}

.list-container ul li:hover {
  transform: translateX(5px);
  background: var(--item-hover-bg);
  border-left-color: var(--accent-secondary);
}

.list-container .item-title {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 1.05rem;
  display: block;
}

.list-container .item-meta {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: block;
  margin-top: 0.4rem;
  font-weight: 500;
}

.sub-section h3 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
  border-bottom: none;
  padding-bottom: 0;
}

.list-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.simple-tag {
  background: var(--item-bg);
  padding: 0.6rem 1rem;
  border-radius: 10px;
  font-size: 0.95rem;
  border: 1px solid var(--glass-border);
  transition: transform 0.2s ease;
  color: var(--text-secondary);
}

.simple-tag:hover {
  transform: scale(1.05);
  background: var(--item-hover-bg);
  color: var(--text-primary);
}

.simple-tag strong {
  color: var(--text-primary);
  font-weight: 600;
  margin-right: 4px;
}

/* Collapsibles */
.collapsible-header {
  cursor: pointer;
  transition: opacity 0.2s ease;
  user-select: none;
}

.collapsible-header:hover {
  opacity: 0.8;
}

.collapsible-icon {
  transition: transform 0.3s ease;
  font-size: 1rem;
  color: var(--accent-color);
}

.collapsible-icon.open {
  transform: rotate(180deg);
}

.collapsible-content {
  display: none;
}

.collapsible-content.open {
  display: block;
  animation: fadeIn 0.4s ease forwards;
}

/* Nav Resume Button */
.nav-resume-btn {
  background: var(--accent-color);
  color: #fff;
  padding: 8px 18px;
  border-radius: 20px;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-resume-btn:hover {
  background: var(--accent-secondary);
  box-shadow: 0 4px 15px var(--accent-glow);
  color: #fff;
  transform: translateY(-2px);
}

/* Bottom Social */
.bottom-social-links a {
  color: var(--text-secondary);
  font-size: 1.8rem;
  transition: all 0.3s ease;
  background: var(--item-bg);
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
}

.bottom-social-links a:hover {
  color: #fff;
  background: var(--accent-color);
  transform: translateY(-5px);
  box-shadow: 0 10px 20px -5px var(--accent-glow);
  border-color: rgba(255, 255, 255, 0.3);
}

/* Footer */
.footer {
  text-align: center;
  padding: 2rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 2rem;
  border-top: 1px solid var(--glass-border);
  font-weight: 500;
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 1s cubic-bezier(0.165, 0.84, 0.44, 1) forwards;
}

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

/* Responsive adjustments */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }

  .hero-left,
  .about-me {
    text-align: center !important;
  }

  .contact-column {
    align-items: center;
  }

  .contact-link {
    justify-content: center;
  }

  .pane-row {
    grid-template-columns: 1fr;
  }

  .nav-links {
    display: none;
  }
}

@media (max-width: 768px) {
  .hero {
    margin: 6rem 0 2rem;
  }

  .section-padding {
    padding: 3rem 1.5rem;
  }

  #name {
    font-size: 2.8rem;
  }

  .section {
    padding: 1.5rem;
  }

  .timeline-header {
    flex-direction: column;
  }

  .timeline-period {
    margin-top: 0.8rem;
  }
}