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

html {
  scroll-behavior: smooth;
}

:root {
  --bg: #f0f4f8;
  --bg2: #e8edf3;
  --bg3: #dde3ec;
  --surface: #ffffff;
  --border: rgba(0, 0, 0, 0.08);
  --blue: #2b6cb0;
  --cyan: #2c7a7b;
  --green: #276749;
  --text: #1a202c;
  --muted: #4a5568;
  --white: #ffffff;
  --ff-head: 'Syne', sans-serif;
  --ff-body: 'Outfit', sans-serif;
  --ff-mono: 'JetBrains Mono', monospace;
  --radius: 16px;
  --glow: 0 4px 24px rgba(43, 108, 176, 0.10);
}

body {
  font-family: var(--ff-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

::-webkit-scrollbar {
  width: 5px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--blue);
  border-radius: 99px;
}

/* HEADER */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 6%;
  background: rgba(240, 244, 248, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.logo {
  font-family: var(--ff-head);
  font-size: 1.3rem;
  font-weight: 800;
  text-decoration: none;
  color: var(--text);
  letter-spacing: -.02em;
}

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

nav {
  display: flex;
  gap: 2rem;
  align-items: center;
}

nav a {
  font-size: .83rem;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  transition: color .25s;
  font-family: var(--ff-mono);
}

nav a:hover {
  color: var(--blue);
}

.nav-cta {
  padding: .5rem 1.2rem;
  border: 1.5px solid var(--blue);
  border-radius: 8px;
  color: var(--blue) !important;
  font-size: .8rem !important;
  transition: background .25s, box-shadow .25s !important;
}

.nav-cta:hover {
  background: rgba(43, 108, 176, .08) !important;
  box-shadow: 0 0 20px rgba(43, 108, 176, .15);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}

.hamburger span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: .3s;
}

/* HERO */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 10rem 6% 6rem;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #e8f0fe 0%, #f0f4f8 50%, #e6fffa 100%);
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 1;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: rgba(43, 108, 176, 0.10);
  top: -100px;
  right: -100px;
}

.orb-2 {
  width: 300px;
  height: 300px;
  background: rgba(44, 122, 123, 0.08);
  bottom: 0;
  left: -50px;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 780px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--ff-mono);
  font-size: .78rem;
  color: var(--cyan);
  letter-spacing: .12em;
  text-transform: uppercase;
  border: 1px solid rgba(44, 122, 123, .35);
  background: rgba(44, 122, 123, .07);
  padding: .35rem .9rem;
  border-radius: 99px;
  margin-bottom: 1.8rem;
  animation: fadeUp .6s ease both;
}

.hero-tag::before {
  content: '▶';
  font-size: .55rem;
}

.hero-content h1 {
  font-family: var(--ff-head);
  font-size: clamp(3rem, 6vw, 5.5rem);
  line-height: 1.05;
  letter-spacing: -.04em;
  margin-bottom: 1.5rem;
  color: var(--text);
  animation: fadeUp .7s .1s ease both;
}

.hero-content h1 .highlight {
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content>p {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 55ch;
  margin-bottom: 2.5rem;
  animation: fadeUp .7s .2s ease both;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  animation: fadeUp .7s .3s ease both;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .85rem 2rem;
  border-radius: 10px;
  font-family: var(--ff-body);
  font-size: .93rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all .28s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(43, 108, 176, 0.30);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1.5px solid rgba(0, 0, 0, 0.15);
}

.btn-ghost:hover {
  border-color: var(--blue);
  color: var(--blue);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  gap: 3rem;
  margin-top: 4rem;
  animation: fadeUp .7s .4s ease both;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}

.stat-item strong {
  display: block;
  font-family: var(--ff-head);
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-item span {
  font-size: .82rem;
  color: var(--muted);
  letter-spacing: .05em;
}

/* SECTIONS */
section {
  padding: 6rem 6%;
  position: relative;
  z-index: 2;
}

.section-tag {
  font-family: var(--ff-mono);
  font-size: .75rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: .7rem;
}

.section-tag::before {
  content: '// ';
  opacity: .5;
}

.section-title {
  font-family: var(--ff-head);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  line-height: 1.1;
  letter-spacing: -.03em;
  margin-bottom: 3.5rem;
  color: var(--text);
}

.section-title span {
  color: var(--blue);
}

/* ABOUT */
#about {
  background: var(--bg2);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 5rem;
  align-items: center;
}

.about-avatar {
  aspect-ratio: 1;
  border-radius: 20px;
  background: linear-gradient(135deg, #bee3f8, #b2f5ea);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--ff-head);
  font-size: 5rem;
  font-weight: 800;
  color: var(--blue);
  position: relative;
  box-shadow: var(--glow);
}

.status-badge {
  position: absolute;
  bottom: -1rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(39, 103, 73, .10);
  border: 1px solid rgba(39, 103, 73, .30);
  color: var(--green);
  padding: .4rem 1rem;
  border-radius: 99px;
  font-family: var(--ff-mono);
  font-size: .72rem;
  letter-spacing: .06em;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: .4rem;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 2s infinite;
}

.about-text p {
  color: var(--muted);
  margin-bottom: 1rem;
  line-height: 1.8;
}

.about-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .8rem 2rem;
  margin: 2rem 0;
}

.info-row {
  display: flex;
  flex-direction: column;
  gap: .15rem;
}

.info-row label {
  font-family: var(--ff-mono);
  font-size: .7rem;
  color: var(--muted);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.info-row span {
  font-weight: 600;
  font-size: .93rem;
  color: var(--text);
}

/* SKILLS */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 1.2rem;
}

.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem;
  transition: transform .3s, border-color .3s, box-shadow .3s;
  position: relative;
  overflow: hidden;
}

.skill-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s;
}

.skill-card:hover {
  transform: translateY(-5px);
  border-color: rgba(43, 108, 176, .25);
  box-shadow: var(--glow);
}

.skill-card:hover::after {
  transform: scaleX(1);
}

.skill-category {
  font-family: var(--ff-mono);
  font-size: .7rem;
  color: var(--cyan);
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: .8rem;
}

.skill-card h3 {
  font-family: var(--ff-head);
  font-size: 1.05rem;
  margin-bottom: 1rem;
  color: var(--text);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.tag {
  padding: .25rem .7rem;
  border-radius: 6px;
  font-family: var(--ff-mono);
  font-size: .73rem;
  background: rgba(43, 108, 176, .07);
  border: 1px solid rgba(43, 108, 176, .15);
  color: var(--blue);
}

.bar-wrap {
  margin-top: 1rem;
}

.bar-label {
  display: flex;
  justify-content: space-between;
  font-size: .75rem;
  color: var(--muted);
  margin-bottom: .4rem;
}

.bar {
  height: 5px;
  background: var(--bg2);
  border-radius: 99px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  animation: growBar 1.2s ease both;
  animation-play-state: paused;
}

.skill-card.visible .bar-fill {
  animation-play-state: running;
}

/* PROJECTS */
#projects {
  background: var(--bg2);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .3s, border-color .3s, box-shadow .3s;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: rgba(43, 108, 176, .3);
  box-shadow: 0 16px 40px rgba(43, 108, 176, .12);
}

.project-header {
  padding: 1.8rem 1.8rem 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.project-icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
}

.pi-1 {
  background: rgba(43, 108, 176, .10);
}

.pi-2 {
  background: rgba(39, 103, 73, .10);
}

.pi-3 {
  background: rgba(214, 158, 46, .10);
}

.project-links-top {
  display: flex;
  gap: .5rem;
}

.icon-link {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: var(--muted);
  font-size: .8rem;
  transition: color .2s, border-color .2s;
}

.icon-link:hover {
  color: var(--blue);
  border-color: var(--blue);
}

.project-body {
  padding: 1.2rem 1.8rem 1.8rem;
  flex: 1;
}

.project-body h3 {
  font-family: var(--ff-head);
  font-size: 1.2rem;
  margin-bottom: .5rem;
  color: var(--text);
}

.project-body p {
  font-size: .88rem;
  color: var(--muted);
  margin-bottom: 1.2rem;
  line-height: 1.7;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}

.ptag {
  padding: .2rem .6rem;
  border-radius: 6px;
  font-family: var(--ff-mono);
  font-size: .7rem;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--muted);
}

.project-metric {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  font-family: var(--ff-mono);
  font-size: .78rem;
  color: var(--green);
  display: flex;
  align-items: center;
  gap: .4rem;
}

.project-metric::before {
  content: '↑';
}

/* RESUME */
.resume-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.resume-grid>div>h3 {
  font-family: var(--ff-mono);
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 2rem;
  padding-bottom: .8rem;
  border-bottom: 2px solid var(--border);
}

.timeline {
  position: relative;
  padding-left: 1.5rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

.tl-item {
  position: relative;
  padding-bottom: 2.2rem;
}

.tl-item::before {
  content: '';
  position: absolute;
  left: -1.9rem;
  top: .4rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 3px rgba(43, 108, 176, .15);
}

.tl-date {
  font-family: var(--ff-mono);
  font-size: .72rem;
  color: var(--cyan);
  margin-bottom: .3rem;
}

.tl-item h4 {
  font-family: var(--ff-head);
  font-size: 1.05rem;
  margin-bottom: .15rem;
  color: var(--text);
}

.tl-item h5 {
  font-size: .85rem;
  color: var(--blue);
  font-weight: 500;
  margin-bottom: .5rem;
}

.tl-item p {
  font-size: .85rem;
  color: var(--muted);
}

.cert-list {
  display: flex;
  flex-direction: column;
  gap: .9rem;
}

.cert-card {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.1rem;
  transition: border-color .3s, transform .3s;
}

.cert-card:hover {
  border-color: rgba(43, 108, 176, .3);
  transform: translateX(4px);
}

.cert-icon {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  background: linear-gradient(135deg, rgba(43, 108, 176, .15), rgba(44, 122, 123, .10));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.cert-card h4 {
  font-size: .92rem;
  font-weight: 600;
  margin-bottom: .15rem;
  color: var(--text);
}

.cert-card p {
  font-size: .78rem;
  color: var(--muted);
}

/* CONTACT */
#contact {
  background: var(--bg2);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 5rem;
  align-items: start;
}

.contact-left h3 {
  font-family: var(--ff-head);
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: var(--text);
}

.contact-left p {
  color: var(--muted);
  margin-bottom: 2rem;
  font-size: .95rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: .9rem;
  margin-bottom: 1.2rem;
}

.ci-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.contact-item a,
.contact-item span {
  font-size: .9rem;
  color: var(--text);
  text-decoration: none;
  transition: color .2s;
}

.contact-item a:hover {
  color: var(--blue);
}

.form {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: .4rem;
}

.form-group label {
  font-family: var(--ff-mono);
  font-size: .72rem;
  color: var(--muted);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.form-group input,
.form-group textarea {
  padding: .85rem 1rem;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-family: var(--ff-body);
  font-size: .93rem;
  color: var(--text);
  outline: none;
  transition: border-color .25s, box-shadow .25s;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(43, 108, 176, .10);
}

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

.btn-send {
  align-self: flex-start;
  padding: .9rem 2rem;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  border: none;
  border-radius: 10px;
  font-family: var(--ff-body);
  font-size: .95rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform .25s, box-shadow .25s;
}

.btn-send:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(43, 108, 176, .30);
}

/* FOOTER */
footer {
  background: #1a202c;
  padding: 3rem 6%;
  border-top: 1px solid rgba(255, 255, 255, .06);
  position: relative;
  z-index: 2;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-logo {
  font-family: var(--ff-head);
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
}

.footer-logo span {
  color: #4fd1c5;
}

.footer-nav {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-nav a {
  font-size: .83rem;
  color: #718096;
  text-decoration: none;
  transition: color .2s;
}

.footer-nav a:hover {
  color: #4fd1c5;
}

.social-row {
  display: flex;
  gap: .7rem;
}

.social-btn {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .10);
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-size: .8rem;
  color: #a0aec0;
  font-family: var(--ff-mono);
  font-weight: 500;
  transition: border-color .25s, color .25s, transform .2s;
}

.social-btn:hover {
  border-color: #4fd1c5;
  color: #4fd1c5;
  transform: translateY(-3px);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, .06);
}

.footer-bottom p {
  font-size: .8rem;
  color: #4a5568;
  font-family: var(--ff-mono);
}

/* ANIMATIONS */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(28px);
  }

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

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: .4;
  }
}

@keyframes growBar {
  from {
    width: 0 !important;
  }
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .65s ease, transform .65s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

.reveal-d1 {
  transition-delay: .1s;
}

.reveal-d2 {
  transition-delay: .2s;
}

.reveal-d3 {
  transition-delay: .3s;
}

/* RESPONSIVE */
.hamburger {
  display: none;
}

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

  .about-avatar {
    max-width: 240px;
  }

  .resume-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  nav {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 99;
    background: var(--bg);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2.5rem;
  }

  nav.open {
    display: flex;
  }

  nav a {
    font-size: 1.2rem;
  }

  .hamburger {
    display: flex;
    z-index: 200;
    position: relative;
  }

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

  .hero-stats {
    flex-direction: column;
    gap: 1.5rem;
  }
}