:root {
  --bg-page: #0b2f39;
  --bg-section: #0f3339;
  --bg-nav: rgba(10, 0, 18, 0.95);
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-strong: rgba(255, 255, 255, 0.06);
  --text-primary: #ffffff;
  --text-secondary: #c9e3d9;
  --text-muted: #b8dbcf;
  --text-subtle: #dccadd;
  --accent: #4fa18b;
  --accent-strong: #2a7f6b;
  --accent-soft: #77bfa8;
  --accent-light: #8de0c6;
  --border-soft: rgba(255, 255, 255, 0.08);
  --border-card: rgba(255, 255, 255, 0.1);
  --shadow-soft: 0 10px 20px rgba(0, 0, 0, 0.25);
  --shadow-strong: 0 18px 38px rgba(0, 0, 0, 0.2);
}

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

html,
body {
  min-height: 100%;
}

body {
  font-family: "Poppins", sans-serif;
  background: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.6;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

main {
  display: block;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 8%;
  background: var(--bg-nav);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-soft);
}

.logo {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  gap: 28px;
  font-weight: 500;
}

.nav-links a {
  position: relative;
  transition: 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
  color: #8ac9b7;
}

.nav-links a.active::after,
.nav-links a:hover::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 3px;
  background: var(--accent);
  border-radius: 3px;
}

.menu-btn {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
}

.section-loading {
  min-height: 60vh;
  display: grid;
  place-items: center;
  padding: 80px 8%;
  color: var(--text-muted);
}

.loading-card {
  padding: 24px 28px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-soft);
}

section {
  padding: 90px 8%;
}

.section-title {
  font-size: 2.3rem;
  text-align: center;
  margin-bottom: 14px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-subtle);
  margin-bottom: 50px;
}

.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  align-items: center;
  gap: 56px;
  padding: 60px 8%;
  background:
    radial-gradient(circle at top left, rgba(141, 224, 198, 0.16), transparent 32%),
    radial-gradient(circle at bottom right, rgba(79, 161, 139, 0.18), transparent 30%),
    linear-gradient(180deg, #0e2430 0%, #163d44 100%);
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
  order: 2;
}

.hero-text {
  order: 1;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  margin-bottom: 22px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.09);
  color: var(--accent-light);
  font-size: 0.95rem;
  font-weight: 600;
}

.hero-eyebrow::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent-light);
  box-shadow: 0 0 18px rgba(141, 224, 198, 0.75);
}

.hero-text h1 {
  font-size: 4.4rem;
  line-height: 1.05;
  font-weight: 800;
  margin-bottom: 12px;
}

.hero-text h2 {
  font-size: 1.9rem;
  font-weight: 500;
  color: #bfe6dc;
  margin-bottom: 24px;
}

.hero-text p {
  max-width: 640px;
  color: #d2e9e0;
  margin-bottom: 30px;
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 32px;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 28px;
  border-radius: 40px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  font-weight: 600;
  transition: transform 0.3s, border-color 0.3s, background 0.3s;
}

.btn-secondary:hover {
  transform: translateY(-3px);
  border-color: rgba(141, 224, 198, 0.45);
  background: rgba(255, 255, 255, 0.08);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  max-width: 620px;
}

.hero-stat {
  padding: 18px 20px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-stat strong {
  display: block;
  margin-bottom: 6px;
  color: var(--accent-light);
  font-size: 1.4rem;
}

.hero-stat span {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.hero-visual {
  position: relative;
  width: min(100%, 430px);
  padding: 26px;
  border-radius: 36px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03));
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.24);
}

.hero-visual::before,
.hero-visual::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  z-index: 0;
}

.hero-visual::before {
  width: 150px;
  height: 150px;
  top: -28px;
  right: -24px;
  background: radial-gradient(circle, rgba(141, 224, 198, 0.35), rgba(141, 224, 198, 0));
}

.hero-visual::after {
  width: 120px;
  height: 120px;
  bottom: -18px;
  left: -20px;
  background: radial-gradient(circle, rgba(79, 161, 139, 0.28), rgba(79, 161, 139, 0));
}

.hero-image .image-box {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 500px;
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(79, 161, 139, 0.35), rgba(134, 197, 183, 0.2));
  display: flex;
  justify-content: center;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 0 35px rgba(79, 161, 139, 0.18);
  overflow: hidden;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-card-note {
  position: absolute;
  right: -16px;
  bottom: 28px;
  z-index: 2;
  width: 180px;
  padding: 16px 18px;
  border-radius: 20px;
  background: rgba(8, 28, 33, 0.86);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(14px);
  box-shadow: 0 20px 35px rgba(0, 0, 0, 0.22);
}

.hero-card-note strong {
  display: block;
  margin-bottom: 4px;
  color: var(--accent-light);
  font-size: 1rem;
}

.hero-card-note span {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.social-icons,
.social-links {
  display: flex;
  gap: 18px;
}

.social-icons {
  margin-bottom: 28px;
}

.social-icons a,
.social-links a {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  color: var(--accent-strong);
  font-size: 1.3rem;
  transition: transform 0.3s, box-shadow 0.3s;
}

.social-icons a:hover,
.social-links a:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(46, 180, 145, 0.25);
}

.btn {
  display: inline-block;
  padding: 15px 34px;
  background: linear-gradient(90deg, var(--accent-strong), var(--accent-soft));
  color: #ffffff;
  border-radius: 40px;
  font-weight: 600;
  transition: transform 0.3s, box-shadow 0.3s;
  box-shadow: 0 10px 30px rgba(39, 123, 93, 0.25);
}

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

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: auto;
  padding: 12px 22px;
  background: linear-gradient(90deg, var(--accent-strong), var(--accent-soft));
  color: #ffffff;
  border-radius: 999px;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(39, 123, 93, 0.25);
  transition: transform 0.3s, box-shadow 0.3s;
}

.project-link:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(39, 123, 93, 0.32);
}

.about,
.skills,
.projects,
.education,
.certifications,
.contact {
  background: var(--bg-section);
  border-top: 1px solid var(--border-soft);
}

.about-content {
  max-width: 900px;
  margin: auto;
  text-align: center;
  color: #ead9ee;
  font-size: 1.05rem;
}

.skills-grid,
.projects-grid,
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.skills-grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: stretch;
}

.skill-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
  border: 1px solid var(--border-card);
  border-radius: 24px;
  padding: 28px;
  box-shadow: var(--shadow-strong);
}

.skill-card h3 {
  margin-bottom: 8px;
  font-size: 1.2rem;
  color: var(--text-primary);
}

.skill-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 22px;
}

.skill-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.skill-item {
  display: grid;
  gap: 8px;
}

.skill-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 0.96rem;
  color: #e9f6f1;
}

.skill-meta span:last-child {
  color: var(--accent-light);
  font-weight: 700;
}

.skill-bar {
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.skill-level {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #58b89d, var(--accent-light));
  box-shadow: 0 0 18px rgba(93, 204, 173, 0.35);
}

.skill-note {
  margin-top: 28px;
  padding: 18px 20px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-soft);
  text-align: center;
  color: #d5efe6;
  font-size: 0.97rem;
}

.projects-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: stretch;
}

.card,
.gallery-item,
.timeline-item,
.contact-panel {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  box-shadow: var(--shadow-soft);
}

.card {
  padding: 28px;
  transition: transform 0.3s, border-color 0.3s;
}

.projects-grid .card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card:hover,
.skill-card:hover,
.gallery-item:hover,
.timeline-item:hover,
.contact-panel:hover {
  transform: translateY(-8px);
  border-color: rgba(79, 161, 139, 0.35);
}

.card h3 {
  margin-bottom: 12px;
  color: var(--text-primary);
}

.card p,
.card li {
  color: var(--text-secondary);
  font-size: 0.97rem;
}

.projects-grid .card p {
  margin-bottom: 16px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.project-tags span {
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(79, 161, 139, 0.15);
  color: #c8efe2;
  font-size: 0.85rem;
  border: 1px solid rgba(141, 224, 198, 0.2);
}

.education-box {
  max-width: 1100px;
  margin: auto;
  display: grid;
  gap: 24px;
  position: relative;
}

.education-row {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 24px;
  align-items: stretch;
}

.timeline-marker {
  position: relative;
  padding: 22px 0 22px 42px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
}

.timeline-marker::before {
  content: "";
  position: absolute;
  top: -28px;
  bottom: -28px;
  left: 18px;
  width: 3px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(141, 224, 198, 0.95), rgba(79, 161, 139, 0.15));
}

.timeline-marker::after {
  content: "";
  position: absolute;
  left: 11px;
  top: 34px;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  background: var(--accent-light);
  box-shadow: 0 0 0 6px rgba(79, 161, 139, 0.18);
}

.education-row:first-child .timeline-marker::before {
  top: 34px;
}

.education-row:last-child .timeline-marker::before {
  bottom: 34px;
}

.timeline-label {
  padding-left: 0;
  color: var(--accent-light);
  font-size: 0.92rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.timeline-year {
  padding-left: 0;
  font-size: 2rem;
  line-height: 1;
  font-weight: 800;
  color: var(--text-primary);
}

.timeline-item {
  padding: 28px;
  border-left: 5px solid var(--accent);
  transition: transform 0.3s, border-color 0.3s;
}

.timeline-item h3 {
  margin-bottom: 8px;
}

.timeline-place {
  margin-bottom: 18px;
  color: var(--text-muted);
}

.timeline-item p,
.timeline-item li {
  color: var(--text-secondary);
}

.timeline-item a {
  color: var(--accent-light);
}

.timeline-points {
  display: grid;
  gap: 10px;
  padding-left: 18px;
}

.timeline-points li::marker {
  color: var(--accent-light);
}

.gallery-item {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 16px;
  transition: transform 0.3s, border-color 0.3s;
}

.gallery-item img {
  width: 100%;
  max-height: 180px;
  object-fit: cover;
  border-radius: 10px;
}

.gallery-item .description {
  margin-top: 10px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.container {
  width: min(1100px, 100%);
  margin: 0 auto;
}

.contact-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  align-items: stretch;
}

.contact-panel {
  padding: 28px;
  transition: transform 0.3s, border-color 0.3s;
}

.contact-heading {
  text-align: center;
  margin-bottom: 40px;
}

.contact-heading h2 {
  font-size: 2.3rem;
  margin-bottom: 12px;
}

.contact-heading p {
  color: var(--text-subtle);
}

.contact-info {
  display: grid;
  gap: 18px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
}

.contact-item i {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(79, 161, 139, 0.2);
  color: var(--accent-light);
}

.contact-copy p,
.contact-copy a {
  color: var(--text-secondary);
}

.contact-copy a:hover {
  color: var(--accent-light);
}

.contact-visual {
  display: grid;
  place-items: center;
  gap: 18px;
  min-height: 100%;
}

.contact-visual p {
  text-align: center;
  color: var(--text-muted);
  max-width: 320px;
}

.contact-badge {
  width: 210px;
  height: 210px;
  border-radius: 32px;
  background: radial-gradient(circle at top, rgba(141, 224, 198, 0.35), rgba(79, 161, 139, 0.15) 45%, rgba(255, 255, 255, 0.04) 100%);
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: grid;
  place-items: center;
  box-shadow: 0 0 40px rgba(79, 161, 139, 0.18);
}

.contact-badge i {
  font-size: 4rem;
  color: var(--accent-light);
}

footer {
  text-align: center;
  padding: 20px;
  background: #0c1620;
  color: #b8d9ce;
  font-size: 0.95rem;
}

.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

.fade-up.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-image {
    justify-content: center;
    order: 1;
  }

  .hero-text {
    order: 2;
  }

  .hero-text p {
    margin-left: auto;
    margin-right: auto;
  }

  .social-icons,
  .social-links {
    justify-content: center;
  }

  .hero-actions,
  .hero-stats {
    justify-content: center;
    margin-left: auto;
    margin-right: auto;
  }

  .hero-visual {
    width: min(100%, 430px);
  }

  .hero-text h1 {
    font-size: 3.3rem;
  }

  .hero-text h2 {
    font-size: 1.6rem;
  }

  .projects-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .menu-btn {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 78px;
    right: 8%;
    flex-direction: column;
    background: #180019;
    padding: 18px;
    border-radius: 16px;
    display: none;
    width: 230px;
  }

  .nav-links.show {
    display: flex;
  }

  .hero-image .image-box {
    height: 400px;
  }

  .hero-text h1 {
    font-size: 2.4rem;
  }

  .hero-text h2 {
    font-size: 1.3rem;
  }

  .section-title,
  .contact-heading h2 {
    font-size: 1.9rem;
  }

  .hero-stats,
  .projects-grid {
    grid-template-columns: 1fr;
  }

  .hero-card-note {
    right: 12px;
    bottom: 12px;
    width: 160px;
  }

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

  .timeline-marker {
    padding: 22px 20px;
  }
}