@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&family=Nunito:wght@300;400;600;700;800&family=JetBrains+Mono:wght@400;500;600;700&display=swap");

:root {
  --bg-primary: #f8f9fc;
  --bg-secondary: #ffffff;
  --bg-dark: #070913;
  --bg-dark-alt: #0d1127;
  --bg-terminal: #0a0d1a;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-light: #f8fafc;
  --text-light-muted: #cbd5e1;
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-glow: rgba(79, 70, 229, 0.4);
  --accent: #d946ef;
  --accent-2: #ff7b00;
  --border-light: rgba(226, 232, 240, 0.8);
  --border-dark: rgba(255, 255, 255, 0.08);
  --font-sans: "Poppins", sans-serif;
  --font-content: "Nunito", sans-serif;
  --font-mono: "JetBrains Mono", monospace;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  text-decoration: none;
  list-style: none;
  outline: none;
  border: none;
}

html {
  font-size: 62.5%;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

html::-webkit-scrollbar {
  width: 0.8rem;
}

html::-webkit-scrollbar-track {
  background: #f1f5f9;
}

html::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 1rem;
}

html::-webkit-scrollbar-thumb:hover {
  background: var(--primary-hover);
}

body {
  background: var(--bg-primary);
  font-family: var(--font-sans);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

section {
  min-height: 100vh;
  padding: 8rem 9% 6rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.heading {
  font-size: 3.6rem;
  font-weight: 800;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 4rem;
  letter-spacing: -0.05rem;
  position: relative;
}

.heading i {
  margin-right: 1.2rem;
  color: var(--primary);
}

.heading span {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  padding: 1.4rem 3rem;
  border-radius: 5rem;
  background: var(--primary);
  color: var(--text-light);
  font-family: var(--font-sans);
  font-size: 1.6rem;
  font-weight: 600;
  box-shadow: 0 4px 15px var(--primary-glow);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(79, 70, 229, 0.6);
}

.btn i {
  transition: transform 0.3s;
}

.btn:hover i {
  transform: translateY(3px);
}

/* ---------- NAVBAR ---------- */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 9%;
  height: 7rem;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.03);
}

header .logo {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-family: var(--font-sans);
}

header .logo i {
  color: var(--primary);
  font-size: 2.4rem;
}

header .logo span {
  color: var(--accent);
}

header .navbar ul {
  display: flex;
  align-items: center;
  gap: 3rem;
}

header .navbar ul li a {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: var(--transition-smooth);
  position: relative;
  padding: 0.5rem 0;
}

header .navbar ul li a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: var(--transition-smooth);
}

header .navbar ul li a.active,
header .navbar ul li a:hover {
  color: var(--primary);
}

header .navbar ul li a.active::after,
header .navbar ul li a:hover::after {
  width: 100%;
}

#menu {
  font-size: 2.6rem;
  color: var(--text-primary);
  cursor: pointer;
  display: none;
}

/* ---------- HERO / HOME ---------- */
.home {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 4rem;
  background: var(--bg-secondary);
}

.home #particles-js {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.home .content {
  flex: 1 1 45rem;
  z-index: 2;
}

.home .content h2 {
  font-size: 4.8rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
}

.home .content h2 span {
  color: var(--primary);
}

.home .content p {
  font-size: 2.2rem;
  color: var(--text-secondary);
  margin: 1.5rem 0 3rem;
  font-weight: 600;
}

.home .content p span {
  color: var(--accent);
  border-right: 2px solid var(--accent);
  padding-right: 5px;
  animation: cursor-blink 0.8s infinite;
}

@keyframes cursor-blink {
  50% { border-color: transparent; }
}

.home .socials {
  margin-top: 4rem;
}

.home .social-icons {
  display: flex;
  gap: 1.5rem;
}

.home .social-icons a {
  font-size: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  background: var(--text-primary);
  width: 4.5rem;
  height: 4.5rem;
  border-radius: 50%;
  transition: var(--transition-smooth);
}

.home .social-icons a:hover {
  transform: translateY(-5px);
  background: var(--primary);
  box-shadow: 0 5px 15px var(--primary-glow);
}

.home .terminal-container {
  flex: 1 1 45rem;
  z-index: 2;
  perspective: 1000px;
}

/* ---------- TERMINAL ---------- */
.terminal {
  background: var(--bg-terminal);
  border: 1px solid var(--border-dark);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
  font-family: var(--font-mono);
  transition: transform 0.1s ease-out;
}

.term-bar {
  display: flex;
  align-items: center;
  padding: 1.2rem 1.6rem;
  background: #111424;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  position: relative;
}

.term-dots {
  display: flex;
  gap: 0.8rem;
  position: absolute;
  left: 1.6rem;
}

.term-dot {
  width: 1.2rem;
  height: 1.2rem;
  border-radius: 50%;
}

.term-dot.r { background: #ff5f56; }
.term-dot.y { background: #ffbd2e; }
.term-dot.g { background: #27c93f; }

.term-title {
  margin: 0 auto;
  font-size: 1.2rem;
  color: var(--text-light-muted);
  font-weight: 500;
}

.term-body {
  padding: 2rem;
  font-size: 1.4rem;
  height: 28rem;
  overflow-y: auto;
  color: var(--text-light);
}

.term-line {
  margin-bottom: 0.8rem;
  word-break: break-all;
}

.term-line .prompt {
  color: var(--accent);
  font-weight: 600;
}

.term-line .path {
  color: #38bdf8;
}

.term-line .out {
  color: var(--text-light-muted);
}

.term-line .out.err {
  color: #fb7185;
}

.term-input-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0 2rem 2rem;
  background: var(--bg-terminal);
}

.term-input-row .prompt {
  color: var(--accent);
  font-weight: 600;
}

.term-input-row .path {
  color: #38bdf8;
}

#term-input {
  flex: 1;
  background: transparent;
  color: var(--text-light);
  font-family: var(--font-mono);
  font-size: 1.4rem;
  caret-color: var(--primary);
}

.term-hint {
  font-size: 1.1rem;
  color: #64748b;
  padding: 1rem 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.03);
  background: #080a14;
}

.term-hint kbd {
  background: #1e293b;
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  color: var(--text-light-muted);
}

/* ---------- ABOUT SECTION ---------- */
.about {
  background: var(--bg-secondary);
}

.about .row {
  display: flex;
  flex-wrap: wrap;
  gap: 4rem;
  align-items: center;
  margin-top: 2rem;
}

.about .row .image {
  flex: 1 1 35rem;
  display: flex;
  justify-content: center;
}

.about .row .image svg {
  width: 80%;
  max-width: 38rem;
  height: auto;
  border-radius: 2rem;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
  background: var(--bg-primary);
  padding: 2rem;
  transition: var(--transition-smooth);
}

.about .row .image svg:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(79, 70, 229, 0.15);
}

.about .row .content {
  flex: 1 1 50rem;
}

.about .row .content h3 {
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.about .row .content .tag {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--primary);
  display: inline-block;
  margin-bottom: 2rem;
}

.about .row .content p {
  font-size: 1.6rem;
  color: var(--text-secondary);
  font-family: var(--font-content);
  margin-bottom: 2.5rem;
}

.about .row .content .box-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(22rem, 1fr));
  gap: 2rem;
  margin-bottom: 3.5rem;
}

.about .row .content .box-container .box {
  padding: 1.5rem 2rem;
  background: var(--bg-primary);
  border-radius: 1rem;
  border: 1px solid var(--border-light);
}

.about .row .content .box-container .box p {
  font-size: 1.5rem;
  margin: 0;
  color: var(--text-secondary);
}

.about .row .content .box-container .box p span {
  font-weight: 700;
  color: var(--text-primary);
}

/* ---------- SKILLS ---------- */
.skills {
  background: linear-gradient(135deg, var(--bg-dark), var(--bg-dark-alt));
  min-height: auto;
}

.skills .heading {
  color: var(--text-light);
}

.skills .heading span {
  background: linear-gradient(135deg, #a855f7, var(--accent));
  -webkit-background-clip: text;
}

.skills .container {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-dark);
  backdrop-filter: blur(10px);
  border-radius: 2rem;
  padding: 4rem;
  width: 100%;
  margin-top: 2rem;
}

.skills-group {
  margin-bottom: 4rem;
}

.skills-group:last-child {
  margin-bottom: 0;
}

.skills-group-title {
  font-size: 2rem;
  color: var(--text-light);
  margin-bottom: 2rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.skills-group-title::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr));
  gap: 2rem;
}

.skills-grid .bar {
  padding: 2rem;
  border-radius: 1.2rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.03);
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  cursor: pointer;
}

.skills-grid .bar:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.skills-grid .bar i {
  font-size: 4.2rem;
}

/* Custom Skill Brand Colors on Hover */
.skills-grid .bar:hover i.fa-python { color: #3776ab; }
.skills-grid .bar:hover i.fa-code { color: #f34b7d; }
.skills-grid .bar:hover i.fa-js-square { color: #f7df1e; }
.skills-grid .bar:hover i.fa-database { color: #336791; }
.skills-grid .bar:hover i.fa-git-alt { color: #f05032; }
.skills-grid .bar:hover i.fa-laptop { color: #007acc; }
.skills-grid .bar:hover i.fa-linux { color: #fcc624; }
.skills-grid .bar:hover i.fa-server { color: #ff6c37; }
.skills-grid .bar:hover i.fa-react { color: #61dafb; }

.skills-grid .bar span {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text-light-muted);
}

.skills-grid .bar:hover span {
  color: var(--text-light);
}

/* ---------- EDUCATION ---------- */
.education {
  background: var(--bg-primary);
}

.education .box-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(35rem, 1fr));
  gap: 3rem;
  margin-top: 2rem;
}

.education .box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 1.5rem;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.02);
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.education .box:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
}

.education .box .image-container {
  height: 20rem;
  background: linear-gradient(135deg, var(--primary-glow), var(--bg-primary));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.education .box .image-container i {
  font-size: 6rem;
  color: var(--primary);
  z-index: 2;
}

.education .box .image-container::before {
  content: "";
  position: absolute;
  width: 15rem;
  height: 15rem;
  background: rgba(79, 70, 229, 0.1);
  border-radius: 50%;
  top: -5rem;
  right: -5rem;
}

.education .box .content {
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.education .box .content h3 {
  font-size: 2rem;
  color: var(--text-primary);
  font-weight: 700;
  margin-bottom: 0.8rem;
}

.education .box .content p {
  font-size: 1.5rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.education .box .content .year {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary);
  background: rgba(79, 70, 229, 0.1);
  padding: 0.5rem 1.5rem;
  border-radius: 5rem;
  align-self: flex-start;
}

/* ---------- PROJECTS ---------- */
.projects-section {
  background: linear-gradient(to bottom, var(--bg-dark), var(--bg-dark-alt));
}

.projects-section .heading {
  color: var(--text-light);
}

.projects-section .heading span {
  background: linear-gradient(135deg, #f59e0b, var(--accent-2));
  -webkit-background-clip: text;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(32rem, 1fr));
  gap: 3rem;
  margin-top: 2rem;
}

.project-card {
  height: 32rem;
  border-radius: 1.5rem;
  overflow: hidden;
  position: relative;
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  cursor: pointer;
}

.project-card .img-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #1e1b4b, #311042);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
}

.project-card .img-placeholder i {
  font-size: 8rem;
  color: rgba(255, 255, 255, 0.15);
}

.project-card:hover .img-placeholder {
  transform: scale(1.1);
}

.project-card .overlay {
  position: absolute;
  top: 85%;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.96);
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
  padding: 0;
}

.project-card:hover .overlay {
  top: 0;
}

.project-card .overlay-header {
  height: 5rem;
  background: var(--accent-2);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  color: var(--text-light);
  font-weight: 700;
}

.project-card .overlay-header h3 {
  font-size: 1.8rem;
}

.project-card .overlay-body {
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex: 1;
}

.project-card .overlay-body p {
  font-size: 1.45rem;
  color: var(--text-primary);
  font-family: var(--font-content);
  line-height: 1.6;
}

.project-card .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin: 1.5rem 0;
}

.project-card .tags span {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-2);
  background: rgba(255, 123, 0, 0.1);
  padding: 0.3rem 1rem;
  border-radius: 0.5rem;
  font-family: var(--font-mono);
}

.project-card .btns {
  display: flex;
  gap: 1.5rem;
}

.project-card .btns a {
  flex: 1;
  padding: 1.2rem 0;
  text-align: center;
  border-radius: 0.8rem;
  font-size: 1.4rem;
  font-weight: 600;
  transition: var(--transition-smooth);
}

.project-card .btns .view-btn {
  background: var(--text-primary);
  color: var(--text-light);
}

.project-card .btns .view-btn:hover {
  background: var(--primary);
}

.project-card .btns .code-btn {
  border: 1px solid var(--text-primary);
  color: var(--text-primary);
}

.project-card .btns .code-btn:hover {
  background: rgba(0, 0, 0, 0.05);
}

/* ---------- EXPERIENCE ---------- */
.experience {
  background: var(--bg-secondary);
}

.experience .timeline {
  position: relative;
  max-width: 100rem;
  margin: 4rem auto 0;
}

.experience .timeline::after {
  content: "";
  position: absolute;
  width: 4px;
  background: var(--border-light);
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -2px;
}

.experience .timeline-container {
  padding: 2rem 4rem;
  position: relative;
  width: 50%;
  animation: fadeIn 1s;
}

.experience .timeline-container::after {
  content: "";
  position: absolute;
  width: 2rem;
  height: 2rem;
  right: -1rem;
  top: 3rem;
  background: var(--bg-secondary);
  border: 4px solid var(--primary);
  border-radius: 50%;
  z-index: 1;
  transition: var(--transition-smooth);
}

.experience .timeline-container.left {
  left: 0;
}

.experience .timeline-container.right {
  left: 50%;
}

.experience .timeline-container.right::after {
  left: -1rem;
}

.experience .timeline-container:hover::after {
  background: var(--primary);
  transform: scale(1.2);
}

.experience .timeline-content {
  padding: 2.5rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 1.5rem;
  position: relative;
  box-shadow: 0 5px 15px rgba(0,0,0,0.02);
}

.experience .timeline-content h3 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
}

.experience .timeline-content .role {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary);
  margin: 0.5rem 0 1rem;
}

.experience .timeline-content .duration {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ---------- CONTACT ---------- */
.contact {
  background: var(--bg-primary);
}

.contact .container {
  background: var(--bg-secondary);
  border-radius: 2rem;
  padding: 4rem;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.03);
  margin-top: 2rem;
}

.contact .row {
  display: flex;
  flex-wrap: wrap;
  gap: 4rem;
  align-items: center;
}

.contact .image-box {
  flex: 1 1 35rem;
  display: flex;
  justify-content: center;
}

.contact .image-box svg {
  width: 85%;
  max-width: 40rem;
  height: auto;
}

.contact form {
  flex: 1 1 45rem;
}

.contact form .form-group {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact form .field-group {
  position: relative;
}

.contact form input,
.contact form textarea {
  width: 100%;
  padding: 1.6rem 2rem 1.6rem 5rem;
  border-radius: 1rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  font-family: var(--font-content);
  font-size: 1.5rem;
  color: var(--text-primary);
  transition: var(--transition-smooth);
}

.contact form textarea {
  height: 15rem;
  resize: none;
}

.contact form input:focus,
.contact form textarea:focus {
  border-color: var(--primary);
  background: var(--bg-secondary);
  box-shadow: 0 0 0 4px var(--primary-glow);
}

.contact form .field-group i {
  position: absolute;
  left: 2rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.6rem;
  color: var(--text-muted);
  transition: var(--transition-smooth);
}

.contact form .field-group.textarea-group i {
  top: 2.5rem;
  transform: none;
}

.contact form input:focus ~ i,
.contact form textarea:focus ~ i {
  color: var(--primary);
}

.contact form button {
  align-self: flex-start;
  border: none;
  font-family: var(--font-sans);
}

/* ---------- FOOTER ---------- */
.footer {
  background: var(--bg-dark);
  padding: 6rem 9% 3rem;
  color: var(--text-light);
}

.footer .box-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(25rem, 1fr));
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer .box h3 {
  font-size: 2rem;
  margin-bottom: 2.5rem;
  color: var(--text-light);
  font-weight: 700;
}

.footer .box p {
  font-size: 1.45rem;
  color: var(--text-light-muted);
  line-height: 1.8;
  font-family: var(--font-content);
}

.footer .box a {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 1.45rem;
  color: var(--text-light-muted);
  margin-bottom: 1.5rem;
  transition: var(--transition-smooth);
}

.footer .box a i {
  color: var(--primary);
  transition: transform 0.3s;
}

.footer .box a:hover {
  color: var(--text-light);
}

.footer .box a:hover i {
  transform: translateX(5px);
}

.footer .box .share {
  display: flex;
  gap: 1.5rem;
  margin-top: 2rem;
}

.footer .box .share a {
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light-muted);
  font-size: 1.8rem;
  margin: 0;
  transition: var(--transition-smooth);
}

.footer .box .share a:hover {
  background: var(--primary);
  color: var(--text-light);
  transform: translateY(-3px);
}

.footer .credit {
  text-align: center;
  font-size: 1.4rem;
  color: var(--text-light-muted);
  border-top: 1px solid var(--border-dark);
  padding-top: 3rem;
  font-family: var(--font-sans);
}

.footer .credit a {
  color: var(--accent);
  font-weight: 600;
}

.footer .credit i.fa-heart {
  color: #ff3838;
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.15); }
  100% { transform: scale(1); }
}

/* ---------- SCROLL TO TOP ---------- */
#scroll-top {
  position: fixed;
  bottom: 3rem;
  right: 3rem;
  z-index: 999;
  width: 5rem;
  height: 5rem;
  border-radius: 50%;
  background: var(--primary);
  color: var(--text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  box-shadow: 0 5px 15px rgba(0,0,0,0.15);
  transition: var(--transition-smooth);
  opacity: 0;
  visibility: hidden;
}

#scroll-top.active {
  opacity: 1;
  visibility: visible;
}

#scroll-top:hover {
  background: var(--primary-hover);
  transform: translateY(-5px);
}

/* ---------- MEDIA QUERIES ---------- */
@media (max-width: 1024px) {
  html {
    font-size: 55%;
  }
  header {
    padding: 1.5rem 5%;
  }
  section {
    padding: 8rem 5% 6rem;
  }
}

@media (max-width: 768px) {
  #menu {
    display: block;
  }
  header .navbar {
    position: fixed;
    top: 7rem;
    right: -100%;
    width: 30rem;
    height: calc(100vh - 7rem);
    background: var(--bg-dark);
    transition: var(--transition-smooth);
    border-left: 1px solid var(--border-dark);
  }
  header .navbar.nav-toggle {
    right: 0;
  }
  header .navbar ul {
    flex-direction: column;
    align-items: flex-start;
    padding: 3rem;
    gap: 2rem;
  }
  header .navbar ul li {
    width: 100%;
  }
  header .navbar ul li a {
    color: var(--text-light-muted);
    font-size: 1.8rem;
    display: block;
    width: 100%;
  }
  header .navbar ul li a:hover {
    color: var(--text-light);
  }
  .home {
    flex-direction: column;
    padding-top: 12rem;
    text-align: center;
  }
  .home .social-icons {
    justify-content: center;
  }
  .home .terminal-container {
    width: 100%;
  }
  .experience .timeline::after {
    left: 4rem;
  }
  .experience .timeline-container {
    width: 100%;
    padding-left: 8rem;
    padding-right: 2rem;
  }
  .experience .timeline-container.left,
  .experience .timeline-container.right {
    left: 0;
  }
  .experience .timeline-container::after {
    left: 3rem;
  }
}

@media (max-width: 450px) {
  html {
    font-size: 50%;
  }
  .about .row .content .box-container {
    grid-template-columns: 1fr;
  }
  .education .box-container {
    grid-template-columns: 1fr;
  }
}