body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  height: 70px;
}

main {
  flex: 1;
}

.about_page_container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 60px 40px;
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

/* Page header */
.about_page_header {
  text-align: center;
}

.about_page_subtitle {
  font-size: 1rem;
  opacity: 0.7;
  margin-top: 0.75rem;
  line-height: 1.6;
}

/* Divider */
.about_divider {
  border: none;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin: 1rem 0;
}

/* Top layout */
.about_top_layout {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

/* Profile card */
.about_profile_card {
  flex: 1;
  background-color: #ffffff07;
  border: 1px solid rgba(0, 128, 0, 0.3);
  border-radius: 12px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.75rem;
}

.about_profile_img {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid rgba(0, 128, 0, 0.5);
  box-shadow: 0 0 15px rgba(0, 255, 0, 0.3);
}

.about_profile_name {
  font-size: 1.25rem;
  font-weight: 700;
}

.about_profile_role {
  font-size: 0.9rem;
  opacity: 0.7;
}

.about_profile_meta {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  text-align: left;
}

.about_meta_item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  opacity: 0.8;
}

.about_meta_item i {
  color: green;
  width: 16px;
}

.about_profile_social {
  display: flex;
  gap: 12px;
  justify-content: center;
}

/* Summary card */
.about_summary_card {
  flex: 2;
  background-color: #ffffff07;
  border: 1px solid rgba(0, 128, 0, 0.3);
  border-radius: 12px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  line-height: 1.7;
}

.about_summary_heading {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.about_summary_card p {
  font-size: 0.95rem;
  opacity: 0.85;
}

/* Career Highlights */
.career_highlights {
  background-color: #ffffff07;
  border: 1px solid rgba(0, 128, 0, 0.3);
  border-radius: 12px;
  padding: 2rem;
}

.career_highlights_heading {
  font-size: 1.25rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1.5rem;
}

.career_stats_top,
.career_stats_bottom {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  text-align: center;
  padding: 1rem 0;
}

.career_stat {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.career_stat_number {
  font-size: 2rem;
  font-weight: 700;
  color: green;
}

.career_stat_number_white {
  font-size: 2rem;
  font-weight: 700;
  color: aliceblue;
}

.career_stat_label {
  font-size: 0.8rem;
  opacity: 0.7;
}

/* Section headings */
.about_section {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.about_section_heading {
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.about_section_heading i {
  color: green;
}

/* Experience */
.experience_card {
  background-color: #ffffff07;
  border: 1px solid rgba(0, 128, 0, 0.3);
  border-radius: 12px;
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  line-height: 1.6;
}

.experience_card_top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1rem;
}

.experience_title {
  font-size: 1.1rem;
  font-weight: 700;
}

.experience_company {
  color: green;
  font-size: 0.95rem;
  font-weight: 500;
}

.experience_meta {
  font-size: 0.875rem;
  opacity: 0.6;
  margin-top: 2px;
}

.experience_date {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  opacity: 0.7;
  white-space: nowrap;
}

.experience_description {
  font-size: 0.9rem;
  opacity: 0.85;
}

.experience_tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.experience_tags span {
  padding: 0.25rem 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 20px;
  font-size: 0.75rem;
  opacity: 0.8;
}

/* Education */
.education_grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.education_card {
  background-color: #ffffff07;
  border: 1px solid rgba(0, 128, 0, 0.3);
  border-radius: 12px;
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  line-height: 1.6;
}

.education_degree {
  font-size: 1.1rem;
  font-weight: 700;
}

.education_field {
  color: green;
  font-size: 0.9rem;
  font-weight: 500;
}

.education_school {
  font-size: 0.875rem;
  opacity: 0.7;
}

.education_date {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  opacity: 0.6;
}

.education_description {
  font-size: 0.875rem;
  opacity: 0.8;
  margin-top: 0.5rem;
}

/* Certifications */
.cert_grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.cert_card {
  background-color: #ffffff07;
  border: 1px solid rgba(0, 128, 0, 0.3);
  border-radius: 12px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  line-height: 1.6;
}

.cert_badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  width: fit-content;
  margin-bottom: 0.5rem;
}

.cert_badge_project {
  background-color: rgba(0, 128, 0, 0.2);
  color: rgb(129, 240, 169);
  border: 1px solid rgba(0, 128, 0, 0.4);
}

.cert_badge_skill {
  background-color: rgba(0, 100, 200, 0.2);
  color: #93c5fd;
  border: 1px solid rgba(0, 100, 200, 0.4);
}

.cert_title {
  font-size: 1rem;
  font-weight: 700;
}

.cert_issuer {
  color: green;
  font-size: 0.875rem;
}

.cert_date {
  font-size: 0.8rem;
  opacity: 0.6;
}

.cert_description {
  font-size: 0.875rem;
  opacity: 0.75;
  margin-top: 0.25rem;
}

/* Responsive */
@media screen and (max-width: 1024px) {
  .cert_grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .career_stats_top,
  .career_stats_bottom {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media screen and (max-width: 768px) {
  .about_top_layout {
    flex-direction: column;
  }

  .about_profile_card {
    width: 100%;
  }

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

  .experience_card_top {
    flex-direction: column;
  }
}

@media screen and (max-width: 480px) {
  .about_page_container {
    padding: 40px 20px;
  }

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

  .career_stats_top,
  .career_stats_bottom {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Light mode */
.light-mode .about_profile_card,
.light-mode .about_summary_card,
.light-mode .career_highlights,
.light-mode .experience_card,
.light-mode .education_card,
.light-mode .cert_card {
  background-color: #ffffff;
  border: 1px solid rgba(0, 128, 0, 0.2);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.light-mode .about_summary_card p,
.light-mode .experience_description,
.light-mode .education_description,
.light-mode .cert_description {
  color: #212121;
}

.light-mode .about_divider {
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.light-mode .career_stat_number_white {
  color: #212121;
}

.light-mode .experience_tags span {
  border-color: rgba(0, 0, 0, 0.15);
  color: #212121;
}
.cert_badge_cert {
  background-color: rgba(180, 100, 0, 0.2);
  color: #fcd34d;
  border: 1px solid rgba(180, 100, 0, 0.4);
}