:root {
  color-scheme: dark;
  --bg: #131313;
  --text: #ececec;
  --muted: #9c9c9c;
  --border: #2a2a2a;
  --surface: #1b1b1b;
  --accent: #5fae84;
  --accent-hover: #7cc49d;
  --accent-soft: rgba(95, 174, 132, 0.12);
  --header-bg: rgba(19, 19, 19, 0.92);
  --header-border: rgba(42, 42, 42, 0.6);
}

[data-theme=light] {
  color-scheme: light;
  --bg: #fafafa;
  --text: #1a1a1a;
  --muted: #6b6b6b;
  --border: #e4e4e4;
  --surface: #fff;
  --accent: #2f6f4f;
  --accent-hover: #245840;
  --accent-soft: rgba(47, 111, 79, 0.07);
  --header-bg: rgba(250, 250, 250, 0.92);
  --header-border: rgba(228, 228, 228, 0.6);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 4.5rem;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background 0.25s ease-out, color 0.25s ease-out;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: all 0.25s ease-out;
}
a:hover {
  color: var(--accent-hover);
}

.accent {
  color: var(--accent);
}

.text-secondary {
  color: var(--accent);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 1rem 1.25rem;
  background: var(--header-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--header-border);
}
@media screen and (min-width: 600px) {
  .site-header {
    padding: 1rem 2rem;
  }
}

.site-name {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}
.site-name:hover {
  color: var(--accent);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}
.site-nav a {
  font-size: 0.9rem;
  color: var(--muted);
  padding: 0.5rem 0.25rem;
}
.site-nav a:hover {
  color: var(--text);
}
@media screen and (min-width: 600px) {
  .site-nav {
    gap: 1.75rem;
  }
  .site-nav a {
    font-size: 0.95rem;
  }
}

.theme-toggle {
  display: inline-flex;
  padding: 0.5rem;
  background: none;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  color: var(--muted);
  transition: all 0.25s ease-out;
}
.theme-toggle:hover {
  color: var(--accent);
  background: var(--accent-soft);
}
.theme-toggle svg {
  display: block;
  width: 20px;
  height: 20px;
}
.theme-toggle .icon-moon {
  display: none;
}

[data-theme=light] .theme-toggle .icon-sun {
  display: none;
}
[data-theme=light] .theme-toggle .icon-moon {
  display: block;
}

main {
  flex: 1;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
}
@media screen and (min-width: 600px) {
  main {
    padding: 0 2rem;
  }
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
.hero {
  padding: 3rem 0 2.5rem;
}
@media screen and (min-width: 900px) {
  .hero {
    padding: 5rem 0 4rem;
  }
}
.hero .hero-title {
  font-size: clamp(2.25rem, 9vw, 4.5rem);
  font-weight: 300;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin: 0 0 0.75rem;
  animation: fade-up 0.6s ease-out both;
}
.hero .hero-title .accent {
  font-weight: 500;
}
.hero .hero-title .kaomoji {
  font-size: 0.5em;
  color: var(--muted);
  vertical-align: middle;
  white-space: nowrap;
}
.hero .hero-sub {
  font-size: 1.05rem;
  color: var(--muted);
  margin: 0 0 1.75rem;
  animation: fade-up 0.6s ease-out 0.1s both;
}
.hero .icons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  animation: fade-up 0.6s ease-out 0.2s both;
}
.hero .icons a {
  display: inline-flex;
  padding: 0.65rem;
  border-radius: 8px;
  color: var(--muted);
}
.hero .icons a:hover {
  color: var(--accent);
  background: var(--accent-soft);
}
.hero .icons a svg {
  display: block;
  width: 22px;
  height: 22px;
}

.section {
  padding: 3rem 0;
  border-top: 1px solid var(--border);
}
@media screen and (min-width: 900px) {
  .section {
    padding: 4.5rem 0;
  }
}

.section-title {
  font-size: clamp(1.75rem, 6vw, 2.5rem);
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 0.25rem;
}

.section-sub {
  font-size: 1rem;
  color: var(--muted);
  margin: 0 0 2rem;
}

.about-info {
  display: grid;
  grid-gap: 1.5rem;
  grid-template-areas: "bioimage" "bio" "job1" "job2";
  grid-template-columns: 1fr;
}
@media screen and (min-width: 600px) {
  .about-info {
    grid-gap: 2rem;
    grid-template-areas: "bioimage bio" "job1 job2";
    grid-template-columns: repeat(2, 1fr);
  }
}
.about-info .bio-image {
  grid-area: bioimage;
  display: block;
  margin: auto;
  width: 55%;
  max-width: 240px;
  border-radius: 50%;
  border: 3px solid var(--accent);
}
@media screen and (min-width: 600px) {
  .about-info .bio-image {
    width: 60%;
    max-width: 280px;
  }
}
.about-info .bio {
  grid-area: bio;
}
.about-info .bio h3 {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
}
.about-info .bio p {
  margin: 0 0 1rem;
  color: var(--muted);
}
.about-info .bio p:first-of-type {
  color: var(--text);
  font-weight: 500;
}
.about-info .job-1 {
  grid-area: job1;
}
.about-info .job-2 {
  grid-area: job2;
}
.about-info .job {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
}
.about-info .job h3 {
  margin: 0 0 0.25rem;
  font-size: 1.05rem;
  font-weight: 600;
}
.about-info .job h6 {
  margin: 0 0 0.5rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  color: var(--accent);
}
.about-info .job p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted);
}

.boxes {
  max-width: 560px;
}
.boxes div {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.25rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--border);
}
.boxes div span {
  color: var(--text);
  font-weight: 500;
}
@media screen and (min-width: 600px) {
  .boxes div {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.25rem 0;
  }
}

#main-footer {
  text-align: center;
  padding: 1.5rem;
  padding-bottom: calc(1.5rem + env(safe-area-inset-bottom));
  margin-top: 3rem;
  font-size: 0.85rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

.gallery-filters {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}
.gallery-filters button {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 0.5rem 1.2rem;
  border-radius: 50px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.85rem;
  letter-spacing: 0.5px;
  transition: all 0.25s ease-out;
}
.gallery-filters button:hover, .gallery-filters button.active {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
}

.gallery-grid {
  columns: 2;
  column-gap: 10px;
}
@media screen and (min-width: 900px) {
  .gallery-grid {
    columns: 3;
    column-gap: 12px;
  }
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: 12px;
  position: relative;
  overflow: hidden;
  border-radius: 6px;
  cursor: pointer;
  transition: transform 0.3s ease;
}
.gallery-item:hover {
  transform: scale(1.015);
}
.gallery-item:hover img {
  filter: brightness(0.75);
}
.gallery-item:hover .overlay {
  transform: translateY(0);
}
.gallery-item img {
  width: 100%;
  display: block;
  border-radius: 6px;
  transition: filter 0.3s ease;
}
.gallery-item .overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1rem;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.75));
  transform: translateY(100%);
  transition: transform 0.3s ease;
}
.gallery-item .overlay .caption {
  display: block;
  font-size: 0.85rem;
  color: #fff;
}
.gallery-item .overlay .tag {
  display: block;
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.gallery-empty {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--muted);
}
.gallery-empty svg {
  width: 48px;
  height: 48px;
  margin-bottom: 1rem;
  color: var(--border);
}

.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.93);
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.lightbox.open {
  display: flex;
  opacity: 1;
}
.lightbox img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: 6px;
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 30px;
  font-size: 2rem;
  color: #fff;
  cursor: pointer;
  background: none;
  border: none;
  z-index: 101;
  transition: color 0.3s;
}
.lightbox-close:hover {
  color: #aaa;
}

.lightbox-nav {
  display: none;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: #fff;
  cursor: pointer;
  background: none;
  border: none;
  padding: 1rem;
  z-index: 101;
  transition: color 0.3s;
}
@media screen and (min-width: 600px) {
  .lightbox-nav {
    display: block;
  }
}
.lightbox-nav:hover {
  color: #aaa;
}
.lightbox-nav svg {
  display: block;
  width: 32px;
  height: 32px;
}

.lightbox-prev {
  left: 10px;
}

.lightbox-next {
  right: 10px;
}

.lightbox-caption {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  color: #aaa;
  font-size: 0.9rem;
  text-align: center;
  letter-spacing: 1px;
}

.lightbox-counter {
  position: absolute;
  top: 25px;
  left: 30px;
  color: #888;
  font-size: 0.85rem;
}