/* ==================================== */
/* 1. THEME VARIABLES & BASE SETUP      */
/* ==================================== */
:root {
  --clr-primary: #0dbcf7; /* DeepSkyBlue */
  --clr-primary-glow: rgba(0, 191, 255, 0.4);
  --font-primary: "Poppins", sans-serif;
  --font-mono: "Fira Code", monospace;
  --transition: all 0.3s ease;
  --header-height: 80px;
}

/* Dark Mode (Your preferred version) */
.dark-mode {
  --clr-bg: #020306;
  --clr-header-bg: rgba(4, 6, 11, 0.85);
  --clr-card-bg: #112240;
  --clr-text-primary: #ced2dc;
  --clr-text-secondary: #8892b0;
  --clr-border: #233554;
  --clr-shadow: rgba(2, 12, 27, 0.7);
}

/* Light Mode */
.light-mode {
  --clr-bg: #f0f2f5;
  --clr-header-bg: rgba(255, 255, 255, 0.85);
  --clr-card-bg: #ffffff;
  --clr-text-primary: #333333;
  --clr-text-secondary: #555555;
  --clr-border: #dddddd;
  --clr-shadow: rgba(0, 0, 0, 0.1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  background-color: var(--clr-bg);
  color: var(--clr-text-primary);
  font-family: var(--font-primary);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
  cursor: none; /* Hide default cursor */
}
main {
  padding: 0 150px;
  padding-top: var(--header-height);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 12px;
}
::-webkit-scrollbar-track {
  background: var(--clr-bg);
}
::-webkit-scrollbar-thumb {
  background-color: var(--clr-border);
  border-radius: 10px;
  border: 3px solid var(--clr-bg);
}

/* ==================================== */
/* 2. REUSABLE & LAYOUT               */
/* ==================================== */
.content-section {
  padding: 100px 0;
  max-width: 1000px;
  margin: 0 auto;
}
.section-title {
  font-size: clamp(26px, 5vw, 32px);
  color: var(--clr-text-primary);
  font-family: var(--font-mono);
  margin-bottom: 40px;
  display: flex;
  align-items: center;
  gap: 15px;
}
.section-title::before {
  content: "0" counter(section) ".";
  counter-increment: section;
  color: var(--clr-primary);
  font-size: 1.2rem;
  margin-right: 5px;
}
.section-title::after {
  content: "";
  display: block;
  width: 300px;
  height: 1px;
  background-color: var(--clr-border);
}
.cta-button {
  display: inline-block;
  background-color: transparent;
  border: 1px solid var(--clr-primary);
  color: var(--clr-primary);
  padding: 14px 28px;
  border-radius: 5px;
  font-family: var(--font-mono);
  font-size: 1rem;
  transition: var(--transition);
  box-shadow: 0 0 5px transparent;
}
.cta-button:hover {
  background-color: rgba(0, 191, 255, 0.1);
  transform: translateY(-3px);
  box-shadow: 0 5px 15px var(--clr-primary-glow);
}

/* ==================================== */
/* 3. INTERACTIVE CURSOR                */
/* ==================================== */
.cursor-dot,
.cursor-outline {
  pointer-events: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  z-index: 9999;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.2s ease;
}
body:hover .cursor-dot,
body:hover .cursor-outline {
  opacity: 1;
}
.cursor-dot {
  width: 8px;
  height: 8px;
  background-color: var(--clr-primary);
}
.cursor-outline {
  width: 40px;
  height: 40px;
  border: 2px solid var(--clr-primary);
}
.cursor-interact {
  transform: translate(-50%, -50%) scale(1.5);
}

/* ==================================== */
/* 4. HEADER & NAVIGATION               */
/* ==================================== */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--clr-header-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
  height: var(--header-height);
}
.header--hidden {
  transform: translateY(-100%);
}
.header--scrolled {
  box-shadow: 0 10px 30px -10px var(--clr-shadow);
}
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 2.5rem;
  width: 100%;
  height: 100%;
}
.nav-logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--clr-text-primary);
  text-decoration: none;
}
.nav-logo span {
  color: var(--clr-primary);
}
.nav-menu-container {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.nav-menu {
  display: flex;
  gap: 2rem;
  align-items: center;
  list-style: none;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.nav-link {
  color: var(--clr-text-secondary);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  position: relative;
  padding: 5px 0;
  transition: var(--transition);
  text-decoration: none;
}
.nav-link:hover {
  color: var(--clr-primary);
}
.nav-link::before {
  content: "0" counter(nav-item) ".";
  counter-increment: nav-item;
  margin-right: 5px;
  color: var(--clr-primary);
}
.nav-cta {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
}
.theme-toggle {
  background: none;
  border: none;
  color: var(--clr-text-primary);
  cursor: pointer;
  font-size: 1.4rem;
  display: flex;
  padding: 5px;
}
.theme-toggle .fa-sun {
  display: none;
}
.dark-mode .theme-toggle .fa-moon {
  display: none;
}
.dark-mode .theme-toggle .fa-sun {
  display: block;
}
.light-mode .theme-toggle .fa-sun {
  display: none;
}
.light-mode .theme-toggle .fa-moon {
  display: block;
}

.hamburger {
  display: none;
  cursor: pointer;
}
.bar {
  display: block;
  width: 25px;
  height: 2px;
  margin: 5px auto;
  background-color: var(--clr-text-primary);
  transition: var(--transition);
}

/* ==================================== */
/* 5. SIDE ELEMENTS                     */
/* ==================================== */
.side-elements {
  display: block;
  width: 40px;
  position: fixed;
  bottom: 0;
  z-index: 10;
}
.side-elements.left {
  left: 40px;
}
.side-elements.right {
  right: 40px;
}
.social-links-side,
.email-link-side {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}
.social-links-side::after,
.email-link-side::after {
  content: "";
  display: block;
  width: 1px;
  height: 90px;
  background-color: var(--clr-text-secondary);
  margin-top: 1rem;
}
.social-links-side a {
  font-size: 1.2rem;
  color: var(--clr-text-secondary);
  transition: var(--transition);
}
.social-links-side a:hover {
  color: var(--clr-primary);
  transform: translateY(-3px);
}
.email-link-side {
  writing-mode: vertical-rl;
}
.email-link-side a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--clr-text-secondary);
  padding: 10px;
  transition: var(--transition);
  text-decoration: none;
}
.email-link-side a:hover {
  color: var(--clr-primary);
  transform: translateX(-3px);
}

/* ==================================== */
/* 6. HERO SECTION                      */
/* ==================================== */
.hero-section {
  min-height: 90vh;
  display: flex;
  align-items: center;
  max-width: 1000px;
  margin: 0 auto;
}
.hero-intro {
  font-family: var(--font-mono);
  color: var(--clr-primary);
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}
.hero-content h1 {
  font-size: clamp(40px, 8vw, 70px);
  font-weight: 700;
  color: var(--clr-text-primary);
  line-height: 1.1;
  margin-bottom: 2rem;
}
.hero-description {
  color: var(--clr-text-secondary);
  max-width: 600px;
  margin-bottom: 3rem;
  font-size: 1.1rem;
}

/* Typewriter Cursor */
#typewriter-h1::after {
  content: "|";
  display: inline-block;
  vertical-align: baseline;
  animation: blink 0.7s infinite;
  color: var(--clr-primary);
}
@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}

/* ==================================== */
/* 7. ABOUT SECTION                     */
/* ==================================== */
.about-container {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 50px;
  align-items: flex-start;
}
.about-text p {
  margin-bottom: 1rem;
  color: var(--clr-text-secondary);
}
.about-image {
  position: relative;
  max-width: 300px;
  border-radius: 5px;
}
.about-image img {
  width: 100%;
  height: auto;
  border-radius: 5px;
  filter: grayscale(80%) contrast(1.1);
  transition: var(--transition);
}
.about-image:hover img {
  filter: none;
}
.about-image::before {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  background: var(--clr-primary);
  mix-blend-mode: screen;
  opacity: 0.3;
  transition: var(--transition);
  z-index: 1;
  border-radius: 5px;
}
.about-image:hover::before {
  opacity: 0;
}
.about-image::after {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  border: 2px solid var(--clr-primary);
  top: 15px;
  left: 15px;
  z-index: -1;
  border-radius: 5px;
  transition: var(--transition);
}
.about-image:hover::after {
  top: 10px;
  left: 10px;
}

/* ==================================== */
/* 8. EXPERIENCE (TIMELINE)             */
/* ==================================== */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 0;
}
.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  left: 20px;
  height: 100%;
  width: 2px;
  background: var(--clr-border);
}
.timeline-item {
  position: relative;
  margin-bottom: 3rem;
  padding-left: 60px;
}
.timeline-item:last-child {
  margin-bottom: 0;
}
.timeline-item::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 5px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--clr-bg);
  border: 3px solid var(--clr-primary);
  z-index: 1;
  transition: var(--transition);
}
.timeline-content {
  background-color: var(--clr-card-bg);
  padding: 1.5rem;
  border-radius: 5px;
  transition: var(--transition);
  box-shadow: 0 5px 15px var(--clr-shadow);
}
.timeline-item:hover .timeline-content {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px var(--clr-shadow);
}
.timeline-item:hover::before {
  transform: scale(1.2);
  box-shadow: 0 0 10px var(--clr-primary-glow);
}
.timeline-title {
  font-size: 1.3rem;
  color: var(--clr-text-primary);
  margin-bottom: 0.25rem;
}
.timeline-company {
  display: block;
  font-size: 1rem;
  color: var(--clr-primary);
  margin-bottom: 0.5rem;
  font-weight: 500;
}
.timeline-date {
  display: block;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  color: var(--clr-text-secondary);
  margin-bottom: 1rem;
}
.timeline-content ul {
  list-style-type: none;
  padding-left: 0;
}
.timeline-content ul li {
  margin-bottom: 0.5rem;
  color: var(--clr-text-secondary);
  position: relative;
  padding-left: 20px;
}
.timeline-content ul li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--clr-primary);
}

/* ==================================== */
/* 9. SKILLS, EXPERTISE & SERVICES      */
/* ==================================== */

/* Professional Skills */
.skills-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.skill-highlight-card {
  background-color: var(--clr-card-bg);
  padding: 2rem;
  border-radius: 5px;
  border-left: 4px solid var(--clr-primary);
  transition: var(--transition);
  box-shadow: 0 5px 15px var(--clr-shadow);
}
.skill-highlight-card:hover {
  transform: translateY(-7px);
  box-shadow: 0 8px 20px var(--clr-shadow);
}
.skill-highlight-icon {
  font-size: 2.5rem;
  color: var(--clr-primary);
  margin-bottom: 1rem;
}
.skill-highlight-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--clr-text-primary);
}
.skill-highlight-card p {
  color: var(--clr-text-secondary);
  font-size: 0.95rem;
}

/* Technical Expertise */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 1.5rem;
}
.skill-card {
  background-color: transparent;
  padding: 1.5rem;
  border-radius: 5px;
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--clr-border);
  color: var(--clr-text-secondary);
}
.skill-card:hover {
  transform: translateY(-5px);
  border-color: var(--clr-primary);
  color: var(--clr-primary);
  box-shadow: 0 0 10px var(--clr-primary-glow);
}
.skill-icon {
  font-size: 3rem;
  margin-bottom: 0.75rem;
  transition: var(--transition);
}
.skill-card:hover .skill-icon {
  color: var(--clr-primary);
}
.skill-card p {
  font-family: var(--font-mono);
}

/* Core Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.service-card {
  background-color: var(--clr-card-bg);
  padding: 2.5rem 2rem;
  border-radius: 5px;
  text-align: center;
  transition: var(--transition);
  border-top: 4px solid var(--clr-border);
  box-shadow: 0 5px 15px var(--clr-shadow);
}
.service-card:hover {
  transform: translateY(-7px);
  border-top-color: var(--clr-primary);
  box-shadow: 0 8px 20px var(--clr-shadow);
}
.service-icon {
  font-size: 2.5rem;
  color: var(--clr-primary);
  margin-bottom: 1.5rem;
}
.service-title {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: var(--clr-text-primary);
}
.service-description {
  color: var(--clr-text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ==================================== */
/* 10. PROJECTS                         */
/* ==================================== */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}
.project-card {
  background-color: var(--clr-card-bg);
  padding: 1.75rem;
  border-radius: 5px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  box-shadow: 0 10px 30px -15px var(--clr-shadow);
}
.project-card:hover {
  transform: translateY(-7px);
  box-shadow: 0 0 15px var(--clr-primary-glow);
}
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  font-size: 2.5rem;
  color: var(--clr-primary);
}
.card-links a {
  font-size: 1.3rem;
  color: var(--clr-text-secondary);
  margin-left: 1rem;
  transition: var(--transition);
}
.card-links a:hover {
  color: var(--clr-primary);
}
.card-title {
  font-size: 1.4rem;
  margin-bottom: 0.75rem;
  color: var(--clr-text-primary);
}
.card-description {
  color: var(--clr-text-secondary);
  font-size: 1rem;
  flex-grow: 1;
}
.card-tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  list-style: none;
}
.card-tech-list li {
  background-color: rgba(0, 191, 255, 0.1);
  color: var(--clr-primary);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
}
.explore-more-container {
  text-align: center;
  margin-top: 4rem;
}

/* ==================================== */
/* 11. CONTACT & FOOTER                 */
/* ==================================== */
.contact-section {
  text-align: center;
  max-width: 600px;
}
.contact-heading {
  font-size: clamp(30px, 5vw, 50px);
  margin: 1rem 0;
  color: var(--clr-text-primary);
}
.contact-text {
  margin-bottom: 3rem;
  color: var(--clr-text-secondary);
}
.contact-cta {
  padding: 18px 36px;
  font-size: 1.1rem;
}

.footer {
  padding: 2rem;
  text-align: center;
}
.footer-content {
  max-width: 500px;
  margin: 0 auto;
}
.footer-email {
  display: none;
}
.footer-social-links {
  display: none;
}
.footer p {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--clr-text-secondary);
}

/* ==================================== */
/* 12. ANIMATIONS & RESPONSIVE          */
/* ==================================== */
body {
  counter-reset: section nav-item;
}
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}
.stagger-item {
  transition-delay: var(--stagger-delay, 0s);
}

@media (max-width: 1080px) {
  main {
    padding: 0 100px;
    padding-top: var(--header-height);
  }
  .side-elements {
    display: none;
  }
  .footer-email,
  .footer-social-links {
    display: block;
  }
  .footer-email {
    color: var(--clr-text-primary);
    font-family: var(--font-mono);
    font-size: clamp(1rem, 4vw, 1.5rem);
    font-weight: 600;
    margin-bottom: 2rem;
    text-decoration: none;
  }
  .footer-social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    font-size: 1.5rem;
  }
  .footer-social-links a {
    color: var(--clr-text-secondary);
  }
}

@media (max-width: 768px) {
  body {
    cursor: auto;
  } /* Revert to default cursor on mobile */
  .cursor-dot,
  .cursor-outline {
    display: none;
  }
  main {
    padding: 0 25px;
    padding-top: var(--header-height);
  }
  .section-title::after {
    width: 100px;
  }
  .nav-menu-container {
    position: fixed;
    right: -100%;
    top: 0;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: var(--clr-card-bg);
    width: min(75vw, 300px);
    height: 100vh;
    text-align: center;
    transition: var(--transition);
    box-shadow: -10px 0 30px -15px var(--clr-shadow);
    z-index: 1001;
    padding: 2rem;
    gap: 2rem;
  }
  .nav-menu-container.active {
    right: 0;
  }
  .nav-menu {
    flex-direction: column;
    gap: 1.5rem;
  }
  .nav-actions {
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 1.5rem;
  }
  .nav-item {
    font-size: 1.1rem;
  }
  .hamburger {
    display: block;
    z-index: 1002;
    position: relative;
  }
  .navbar .nav-menu-container {
    display: none;
  }
  .navbar .hamburger {
    display: block;
  }
  .navbar .nav-menu-container.active {
    display: flex;
  }
  .about-container {
    grid-template-columns: 1fr;
  }
  .about-image {
    grid-row: 1;
    margin: 0 auto 40px;
  }
}