html {
  overflow-y: scroll;
  scrollbar-gutter: stable;
}
/* --- CSS Reset & Base Styles --- */
:root {
  --primary-color: #1a73e8;
  --secondary-color: #34a853;
  --accent-color: #fbbc05;
  --dark-bg: #0d1b2a;
  --darker-bg: #0a1423;
  --light-text: #e0e1dd;
  --gray-text: #a8b2c9;
  --card-bg: rgba(255, 255, 255, 0.05);
  --transition: all 0.3s ease;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--dark-bg);
  color: var(--light-text);
  line-height: 1.6;
  overflow-x: hidden;
  scroll-behavior: smooth;
  /* Added line below to stop the shaking/shifting */
  scrollbar-gutter: stable;
}
/* Update the global heading styles */
h1,
h3,
h4 {
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--accent-color);
}
/* Specific rule for H2 to center them globally */
h2 {
  font-weight: 600;
  margin-bottom: 2rem; /* Increased margin for better section separation */
  color: var(--accent-color);
  text-align: center;
  width: 100%;
}
p {
  margin-bottom: 1rem;
  text-align: justify;
}
a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  color: var(--secondary-color);
}
section {
  padding: 6rem 2rem;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}
.btn {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  background-color: var(--primary-color);
  color: white;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-size: 1rem;
  font-weight: 500;
}
.btn:hover {
  background-color: #0d5bb8;
  transform: translateY(-2px);
}

/* --- Header & Navigation --- */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(10, 20, 35, 0.9);
  backdrop-filter: blur(10px);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--accent-color);
}
nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}
nav li {
  display: inline;
}
nav a {
  color: var(--light-text);
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 4px;
}
nav a:hover {
  color: var(--light-text);
  background-color: var(--accent-color);
  text-decoration: none;
}
nav a.active {
  color: var(--light-text);
  background-color: rgba(255, 255, 255, 0.1);
  text-decoration: none;
}

/* --- Hero Section --- */
#hero {
  background: linear-gradient(135deg, var(--darker-bg) 0%, var(--dark-bg) 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}
#hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(
    circle,
    rgba(52, 168, 83, 0.1) 1px,
    transparent 1px
  );
  background-size: 50px 50px;
  z-index: -1;
  transform: translateZ(-1px) scale(1.5);
  transform-origin: center center;
  will-change: transform;
}
.hero-content h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  color: white;
}
.hero-content p {
  font-size: 1.5rem;
  max-width: 800px;
  margin: 0 auto 1rem;
  color: var(--gray-text);
  text-align: center;
}
.profile-img {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--primary-color);
  margin: 0 auto 2rem;
  display: block;
}

/* --- About Section --- */
#about {
  background-color: var(--darker-bg);
}
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.about-text h2 {
  font-size: 2.5rem;
  color: white;
}
.about-text p {
  margin-bottom: 1.5rem;
}
.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  align-self: center;
}
.stat-card {
  background-color: var(--card-bg);
  padding: 1.5rem;
  border-radius: 8px;
  text-align: center;
  cursor: pointer;
}
.stat-card:hover {
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-5px);
}
.stat-number {
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--secondary-color);
  display: inline-block;
}
.stat-label {
  font-size: 0.9rem;
  color: var(--gray-text);
}

/* --- Focus Areas Section --- */
#focus {
  background-color: var(--dark-bg);
}
.focus-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}
.focus-card {
  background-color: var(--card-bg);
  padding: 2.5rem;
  border-radius: 8px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}
.focus-card:hover {
  transform: translateY(-10px);
  background-color: rgba(255, 255, 255, 0.08);
}
.focus-card h3 {
  color: white;
  font-size: 1.6rem;
  margin-bottom: 1rem;
}
.focus-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--secondary-color);
}

/* --- Philosophy Section --- */
#philosophy {
  background-color: var(--darker-bg);
}
.philosophy-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}
.philosophy-content p {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  color: var(--gray-text);
}

/* --- Experience Section --- */
#experience {
  background-color: var(--dark-bg);
}
.timeline-container {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}
.timeline-container::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--primary-color);
  left: 50%;
  margin-left: -2px;
  border-radius: 2px;
}
.timeline-item {
  margin-bottom: 3rem;
  position: relative;
  width: calc(50% - 40px);
  padding: 1.5rem;
  background-color: var(--card-bg);
  border-radius: 8px;
  cursor: pointer;
}
.timeline-item:nth-child(odd) {
  left: 0;
}
.timeline-item:nth-child(even) {
  left: calc(50% + 40px);
}
.timeline-item::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  background-color: var(--accent-color);
  border: 4px solid var(--dark-bg);
  top: 15px;
  border-radius: 50%;
  z-index: 1;
}
.timeline-item:nth-child(odd)::after {
  right: -50px;
}
.timeline-item:nth-child(even)::after {
  left: -50px;
}
.timeline-date {
  font-weight: bold;
  color: var(--accent-color);
  margin-bottom: 0.5rem;
}
.timeline-title {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  color: white;
}
.timeline-company {
  font-style: italic;
  color: var(--gray-text);
  margin-bottom: 0.5rem;
}
.timeline-details {
  display: none;
}
.timeline-details.show {
  display: block;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.toggle-details {
  color: var(--primary-color);
  cursor: pointer;
  font-weight: 500;
}

/* --- Skills Section --- */
#skills {
  background-color: var(--darker-bg);
}
.skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}
.skill-tag {
  background-color: var(--card-bg);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  display: inline-block;
  margin: 0.25rem;
  transition: var(--transition);
  cursor: pointer;
}
.skill-tag:hover {
  background-color: var(--primary-color);
  transform: scale(1.1);
}
.skill-category h3 {
  color: var(--accent-color);
  font-size: 1.5rem;
  margin-bottom: 1rem;
  text-align: center;
}

/* --- Contact Section --- */
#contact {
  background-color: var(--dark-bg);
  text-align: center;
}
.contact-info {
  text-align: center;
  margin: 0 auto;
}
.contact-info p {
  margin-bottom: 0.5rem;
  text-align: center;
}

/* --- Footer --- */
footer {
  text-align: center;
  padding: 2rem;
  background-color: var(--darker-bg);
  color: var(--gray-text);
  font-size: 0.9rem;
  width: 100%;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* --- Modal Overlay --- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.modal-overlay.visible {
  opacity: 1;
  visibility: visible;
}
.modal-content {
  background-color: var(--darker-bg);
  color: var(--light-text);
  padding: 2rem;
  border-radius: 8px;
  max-width: 600px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
  transform: scale(0.8);
  transition: transform 0.3s ease;
}
.modal-overlay.visible .modal-content {
  transform: scale(1);
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}
.modal-title {
  margin: 0;
  color: var(--accent-color);
}
.close-modal {
  background: none;
  border: none;
  color: var(--light-text);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
}
.modal-body p {
  margin-bottom: 1rem;
}

/* --- Back to Top Button --- */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background-color: var(--primary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}
.back-to-top:hover {
  background-color: #0d5bb8;
  transform: scale(1.1);
}

/* --- Scroll-triggered Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  will-change: opacity, transform;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
/* Timeline directional entrance */
.timeline-item.fade-in {
  transform: translateX(50px);
}
.timeline-item:nth-child(odd).fade-in {
  transform: translateX(-50px);
}
.timeline-item.fade-in.visible {
  transform: translateX(0);
}

/* --- Responsive Design --- */
@media (max-width: 900px) {
  .timeline-container::before {
    left: 30px;
  }
  .timeline-item:nth-child(odd),
  .timeline-item:nth-child(even) {
    width: calc(100% - 90px);
    left: 90px !important;
  }
  .timeline-item:nth-child(odd)::after,
  .timeline-item:nth-child(even)::after {
    left: -50px;
  }
  .about-content {
    grid-template-columns: 1fr;
  }
  .about-stats {
    justify-self: center;
  }
}
@media (max-width: 768px) {
  header {
    flex-direction: column;
    padding: 1rem;
  }
  nav ul {
    margin-top: 1rem;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
  }
  .hero-content h1 {
    font-size: 2.5rem;
  }
  .hero-content p {
    font-size: 1.2rem;
  }
  section {
    padding: 4rem 1.5rem;
  }
}