:root {
  --bg: #eef0f5;
  --bg-surface: #ffffff;
  --bg-card: #ffffff;
  --accent: #1f5fbe;
  --accent-dim: rgba(31,95,190,0.07);
  --accent-border: rgba(31,95,190,0.2);
  --text-primary: #111827;
  --text-secondary: #4b5a6e;
  --text-muted: #9aa5b4;
  --border: rgba(0,0,0,0.08);
  --mono: 'DM Mono', monospace;
  --sans: 'Plus Jakarta Sans', sans-serif;
  --page-max: 68rem;
  --page-pad: clamp(1rem, 2.5vw, 1.75rem);
  --nav-pad: 0.75rem;
  --section-gap: 2.25rem;
}
[data-theme="dark"] {
  --bg: #080a0f;
  --bg-surface: #12151c;
  --bg-card: #1a2030;
  --accent: #3d7ed8;
  --accent-dim: rgba(61,126,216,0.12);
  --accent-border: rgba(61,126,216,0.25);
  --text-primary: #d4dce8;
  --text-secondary: #7a8899;
  --text-muted: #3d4a5c;
  --border: rgba(255,255,255,0.07);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--sans);
  font-size: clamp(15px, 0.875rem + 0.1vw, 16px);
  line-height: 1.7;
  min-height: 100vh;
  min-width: 320px;
  text-wrap: pretty;
  padding: clamp(0px, 2vw, 1.25rem);
}

.page {
  width: 100%;
  max-width: var(--page-max);
  margin-inline: auto;
  min-height: calc(100vh - 2.5rem);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.06);
  display: flex;
  flex-direction: column;
  overflow: clip;
}
[data-theme="dark"] .page {
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.45);
}

/* ── Header ── */
.site-header {
  padding: clamp(1.5rem, 3vw, 2.25rem) var(--page-pad) clamp(1rem, 2vw, 1.5rem);
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, var(--accent-dim) 0%, transparent 100%);
}
.header-inner {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.identity { min-width: 0; }
.name-tag {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.35rem;
}
.name {
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.name span { color: var(--accent); }
.role {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 0.35rem;
}

.contact-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
}
.contact-link {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-secondary);
  text-decoration: none;
  line-height: 1.4;
}
.contact-link + .contact-link::before {
  content: '·';
  margin-right: 1rem;
  color: var(--text-muted);
}
a.contact-link:hover { color: var(--accent); }

/* ── Sticky nav ── */
.nav-bar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg-surface) 88%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.2s;
}
.nav-bar.is-scrolled {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}
[data-theme="dark"] .nav-bar.is-scrolled {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
}

.nav-bar-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: var(--nav-pad) var(--page-pad);
  transition: padding 0.2s;
}
.nav-bar.is-scrolled .nav-bar-inner {
  padding-block: 0.5rem;
}

.nav-bar-name {
  display: none;
  flex-shrink: 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  white-space: nowrap;
}
.nav-bar-name span { color: var(--accent); }
.nav-bar.is-scrolled .nav-bar-name { display: block; }

.nav-toggle {
  display: none;
  flex-shrink: 0;
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.45rem 0.75rem;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  cursor: pointer;
  align-items: center;
  gap: 0.5rem;
}
.nav-toggle:hover { color: var(--accent); border-color: var(--accent-border); }

.site-nav {
  flex: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem 1.25rem;
  min-width: 0;
}
.site-nav a {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.3rem 0;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.site-nav a:hover,
.site-nav a.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.theme-btn {
  flex-shrink: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 9px;
  cursor: pointer;
  color: var(--text-secondary);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  transition: color 0.2s, border-color 0.2s;
}
.theme-btn:hover { color: var(--accent); border-color: var(--accent-border); }

/* ── Main ── */
main {
  flex: 1;
  padding: clamp(1.5rem, 2.5vw, 2rem) var(--page-pad) clamp(2rem, 3vw, 2.5rem);
}

section {
  margin-bottom: var(--section-gap);
  scroll-margin-top: 3.5rem;
}
section:last-child { margin-bottom: 0; }

.split-sections {
  display: grid;
  gap: var(--section-gap);
}
.split-sections section { margin-bottom: 0; }

.section-title {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.about-text { color: var(--text-secondary); line-height: 1.8; }

.skills-grid {
  display: grid;
  gap: 0;
}
.skill-row {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 0.5rem 1.25rem;
  align-items: baseline;
  padding: 0.55rem 0;
  font-size: 0.92em;
}
.skill-row:not(:last-child) { border-bottom: 1px solid var(--border); }
.skill-label { font-family: var(--mono); font-size: 10px; color: var(--accent); letter-spacing: 0.05em; }
.skill-value { color: var(--text-secondary); }

.exp-item {
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--border);
}
.exp-item:last-child { border-bottom: none; padding-bottom: 0; }
.exp-meta {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.6rem;
  flex-wrap: wrap;
}
.exp-title { font-size: 0.95em; font-weight: 600; }
.exp-company { color: var(--accent); font-weight: 400; }
.exp-date { font-family: var(--mono); font-size: 10px; color: var(--text-muted); white-space: nowrap; }
.exp-list { list-style: none; }
.exp-list li {
  font-size: 0.92em;
  color: var(--text-secondary);
  padding: 0.2rem 0 0.2rem 1rem;
  position: relative;
  line-height: 1.7;
}
.exp-list li::before { content: '–'; position: absolute; left: 0; color: var(--text-muted); }

.edu-degree { font-size: 0.95em; font-weight: 600; }
.edu-school { font-size: 0.9em; color: var(--accent); margin-top: 2px; }
.edu-note { font-size: 0.9em; color: var(--text-secondary); margin-top: 0.35rem; line-height: 1.7; }

.additional-list { list-style: none; }
.additional-item {
  font-size: 0.92em;
  color: var(--text-secondary);
  padding: 0.2rem 0 0.2rem 1rem;
  position: relative;
  line-height: 1.7;
}
.additional-item + .additional-item { margin-top: 0.35rem; }
.additional-item::before { content: '–'; position: absolute; left: 0; color: var(--text-muted); }

footer {
  padding: 1.15rem var(--page-pad) 1.35rem;
  border-top: 1px solid var(--border);
  font-family: var(--sans);
  font-size: 1em;
  color: var(--text-secondary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  background: var(--accent-dim);
}
.footer-link {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-secondary);
  text-decoration: none;
}
.footer-link:hover { color: var(--accent); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.55rem 0.9rem;
  line-height: 1.2;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.btn:hover { color: var(--accent); border-color: var(--accent-border); }
.btn-primary {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}
.btn-primary:hover { color: #fff; background: color-mix(in srgb, var(--accent) 85%, #000); border-color: transparent; }
.btn:disabled { opacity: 0.6; cursor: progress; }
.btn:focus-visible,
.filter-chip:focus-visible,
.project-card:focus-visible,
.pd-thumb:focus-visible,
.pd-close:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.header-side {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.header-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; }

/* ── Projects ── */
.project-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.1rem;
}
.filter-chip {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.filter-chip:hover { color: var(--accent); border-color: var(--accent-border); }
.filter-chip[aria-pressed="true"] {
  color: var(--accent);
  background: var(--accent-dim);
  border-color: var(--accent-border);
}
.chip-count { color: var(--text-muted); }
.filter-chip[aria-pressed="true"] .chip-count { color: inherit; opacity: 0.7; }

.project-empty { color: var(--text-secondary); font-size: 0.92em; padding: 1rem 0; }

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 270px), 1fr));
  gap: 1rem;
}
.project-card {
  all: unset;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  text-align: left;
  transition: transform 0.2s ease, border-color 0.2s, box-shadow 0.2s;
}
.project-card[hidden] { display: none; }
.project-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-border);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}
[data-theme="dark"] .project-card:hover { box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4); }

.project-thumb {
  aspect-ratio: 16 / 9;
  background: var(--accent-dim);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.project-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.project-card:hover .project-thumb img { transform: scale(1.03); }
.project-thumb.is-empty {
  display: grid;
  place-items: center;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.8;
}

.project-card-body {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.9rem 1rem 1rem;
  flex: 1;
}
.project-card-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
}
.project-title { font-size: 0.98em; font-weight: 600; line-height: 1.35; color: var(--text-primary); }
.project-year { font-family: var(--mono); font-size: 10px; color: var(--text-muted); white-space: nowrap; }
.project-summary { font-size: 0.88em; color: var(--text-secondary); line-height: 1.6; }
.project-card-foot {
  margin-top: auto;
  padding-top: 0.5rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.tag-list { list-style: none; display: flex; flex-wrap: wrap; gap: 0.3rem; }
.tag {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--accent);
  background: var(--accent-dim);
  border-radius: 4px;
  padding: 0.1rem 0.45rem;
  line-height: 1.6;
}
.badges { display: flex; gap: 0.3rem; }
.badge {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.05rem 0.4rem;
  line-height: 1.6;
}

/* ── Project dialog ── */
body.dialog-open { overflow: hidden; }
.project-dialog {
  width: min(56rem, calc(100% - 2rem));
  max-height: calc(100dvh - 2rem);
  margin: auto;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-surface);
  color: var(--text-primary);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.3);
  overflow-y: auto;
  overscroll-behavior: contain;
}
.project-dialog::backdrop {
  background: rgba(5, 8, 14, 0.6);
  backdrop-filter: blur(3px);
}
.project-dialog[open] { animation: dialog-in 0.22s ease-out; }
.project-dialog[open]::backdrop { animation: fade-in 0.22s ease-out; }
@keyframes dialog-in { from { opacity: 0; transform: translateY(12px) scale(0.98); } }
@keyframes fade-in { from { opacity: 0; } }

.pd-inner { position: relative; }
.pd-close {
  position: sticky;
  top: 0.75rem;
  float: right;
  margin: 0.75rem 0.75rem -3rem 0;
  z-index: 2;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-surface) 85%, transparent);
  backdrop-filter: blur(6px);
  color: var(--text-primary);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
}
.pd-close:hover { color: var(--accent); border-color: var(--accent-border); }

.pd-media { background: #000; }
.pd-stage { aspect-ratio: 16 / 9; display: grid; place-items: center; }
.pd-stage img,
.pd-stage video,
.pd-stage iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
  object-fit: contain;
}
.pd-thumbs {
  display: flex;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  overflow-x: auto;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}
.pd-thumb {
  flex: 0 0 auto;
  width: 5.5rem;
  aspect-ratio: 16 / 9;
  padding: 0;
  border: 2px solid transparent;
  border-radius: 5px;
  overflow: hidden;
  cursor: pointer;
  background: #000;
  color: #fff;
  opacity: 0.65;
  transition: opacity 0.15s, border-color 0.15s;
}
.pd-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.pd-thumb:hover { opacity: 1; }
.pd-thumb[aria-current="true"] { opacity: 1; border-color: var(--accent); }

.pd-body { padding: 1.4rem clamp(1rem, 3vw, 2rem) 1.75rem; }
.pd-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 0.6rem; margin-bottom: 0.5rem; }
.pd-title {
  font-size: clamp(1.25rem, 2.5vw, 1.6rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin-bottom: 0.8rem;
  padding-right: 2.5rem;
}
.pd-media:not([hidden]) + .pd-body .pd-title { padding-right: 0; }
.pd-desc p { color: var(--text-secondary); line-height: 1.8; }
.pd-desc p + p { margin-top: 0.75rem; }
.pd-links { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.4rem; }

/* ── Contact ── */
.contact-layout { display: grid; gap: 1.75rem; }
.contact-intro p { color: var(--text-secondary); line-height: 1.8; }
.contact-details {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.45rem 1.25rem;
  margin-top: 1.1rem;
  font-size: 0.92em;
}
.contact-details dt { font-family: var(--mono); font-size: 10px; color: var(--accent); letter-spacing: 0.05em; align-self: center; }
.contact-details a { color: var(--text-secondary); text-decoration: none; }
.contact-details a:hover { color: var(--accent); }

.contact-form { display: grid; gap: 0.9rem; }
.field { display: grid; gap: 0.3rem; }
.field label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.field input,
.field textarea {
  font: inherit;
  font-size: 0.95em;
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.6rem 0.75rem;
  width: 100%;
  transition: border-color 0.15s, box-shadow 0.15s;
}
[data-theme="dark"] .field input,
[data-theme="dark"] .field textarea { background: var(--bg); }
.field textarea { resize: vertical; min-height: 7rem; }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.was-validated .field :invalid { border-color: #d14b4b; }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-footer { display: flex; align-items: center; flex-wrap: wrap; gap: 0.75rem 1rem; }
.form-status { font-size: 0.88em; color: var(--text-secondary); }
.form-status[data-kind="success"] { color: #2e9e6b; }
.form-status[data-kind="error"] { color: #d14b4b; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

@media (min-width: 640px) {
  .header-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
    gap: 2rem;
  }
  .header-side { align-items: flex-end; }
  .contact-bar { justify-content: flex-end; }
}

@media (min-width: 768px) {
  .skills-grid {
    grid-template-columns: 1fr 1fr;
    column-gap: 2rem;
  }
  .split-sections {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: start;
  }
  .contact-layout { grid-template-columns: 2fr 3fr; gap: 2.5rem; }
}

@media (min-width: 900px) {
  .skill-row { grid-template-columns: 115px 1fr; }
}

@media (max-width: 600px) {
  body { padding: 0; }
  .page { border-radius: 0; border-inline: none; min-height: 100vh; }
  .nav-bar-name { display: none !important; }
  .nav-toggle { display: flex; margin-left: auto; }
  .nav-bar-inner { flex-wrap: wrap; }
  .site-nav {
    display: none;
    order: 4;
    flex-basis: 100%;
    flex-direction: column;
    gap: 0;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border);
  }
  .site-nav.open { display: flex; }
  .site-nav a {
    padding: 0.55rem 0;
    border-bottom: none;
    border-left: 2px solid transparent;
    padding-left: 0.5rem;
  }
  .site-nav a:hover,
  .site-nav a.active {
    border-bottom-color: transparent;
    border-left-color: var(--accent);
  }
  .theme-btn { order: 3; }
  .contact-bar { flex-direction: column; gap: 0.35rem; }
  .contact-link + .contact-link::before { display: none; }
  .skill-row { grid-template-columns: 1fr; gap: 0.1rem; }
  .project-dialog { width: 100%; max-width: 100%; max-height: 100dvh; height: 100dvh; border-radius: 0; border: none; }
}