:root {
  --bg: #f5f0e7;
  --bg-elev: #ebe4d7;
  --bg-card: #fffdf7;
  --border: #263746;
  --text: #1e3040;
  --muted: #607080;
  --accent: #e05b36;
  --accent-2: #2f7f80;
  --accent-soft: rgba(224, 91, 54, 0.11);
  --radius: 5px;
  --max: 1100px;
  --shadow: 5px 6px 0 rgba(38, 55, 70, 0.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  background-color: var(--bg);
  background-image: linear-gradient(rgba(38, 55, 70, 0.035) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(38, 55, 70, 0.035) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }

.container { width: min(var(--max), 100% - 2.5rem); margin: 0 auto; }

/* Header / nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245, 240, 231, 0.92);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 1rem;
}

.brand {
  font-family: "JetBrains Mono", monospace;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--text);
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.brand:hover { text-decoration: none; }
.brand span { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
}

.nav-links a {
  color: var(--muted);
  padding: 0.5rem 0.85rem;
  border-radius: 3px;
  font-weight: 500;
  transition: color 0.15s, background 0.15s;
}
.nav-links a:hover { color: var(--text); background: #f0c9a8; text-decoration: none; }
.nav-links a.active { color: var(--text); background: var(--accent-soft); }

.nav-social { display: flex; gap: 0.5rem; margin-left: 0.5rem; }
.nav-links .icon-btn { padding: 0; border-radius: 50%; }
.nav-links .icon-btn:hover { background: transparent; }

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 5px;
  border: 1px solid var(--border);
  color: var(--muted);
  background: transparent;
  transition: all 0.15s;
}
.icon-btn:hover { color: var(--accent); border-color: var(--accent); text-decoration: none; transform: rotate(-3deg); }
.icon-btn i { font-size: 18px; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 0.45rem 0.6rem;
  cursor: pointer;
}

/* Main */
main { flex: 1; padding: 3rem 0 4rem; }

.page-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}
.page-intro { color: var(--muted); max-width: 65ch; margin: 0 0 2.5rem; font-size: 1.05rem; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 700;
  margin: 0 0 0.75rem;
}

h2 { font-size: 1.5rem; margin: 0 0 1rem; letter-spacing: -0.01em; }
h2, h3, .page-title, .hero h1 { font-family: Georgia, "Times New Roman", serif; }
h2 { color: var(--accent-2); }
h3 { margin: 0 0 0.35rem; font-size: 1.1rem; }

section + section { margin-top: 3.5rem; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.3rem;
  border-radius: 4px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
  font-size: 0.95rem;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #fffaf2; box-shadow: 3px 3px 0 var(--border); }
.btn-primary:hover { filter: brightness(1.1); }
.btn-outline { border-color: var(--border); color: var(--text); background: rgba(255, 253, 247, 0.55); }
.btn-outline:hover { border-color: var(--accent); }
.btn i { font-size: 18px; }

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
  padding: 2rem 0 3rem;
}
.hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  line-height: 1.1;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}
.hero h1 .gradient {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 3px;
  text-underline-offset: 5px;
}
.hero p { color: var(--muted); font-size: 1.15rem; max-width: 55ch; }
.hero-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: 1.75rem; }

.hero-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transform: rotate(1deg);
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.85rem;
  color: var(--muted);
}
.hero-card .dots { display: flex; gap: 6px; margin-bottom: 1rem; }
.hero-card .dots span { width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.hero-card .dots span:nth-child(1) { background: #f87171; }
.hero-card .dots span:nth-child(2) { background: #fbbf24; }
.hero-card .dots span:nth-child(3) { background: #34d399; }
.hero-card pre { margin: 0; white-space: pre-wrap; }
.hero-card .k { color: var(--accent); }
.hero-card .s { color: var(--accent-2); }
.hero-card .p { color: var(--accent); }

/* Cards & grids */
.grid { display: grid; gap: 1.25rem; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: 3px 4px 0 rgba(38, 55, 70, 0.09);
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}
.card:hover { border-color: var(--accent); transform: translate(-2px, -2px) rotate(-0.4deg); box-shadow: 6px 7px 0 rgba(38, 55, 70, 0.12); }
.card p { color: var(--muted); margin: 0.25rem 0 0; }

.tag-list { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 1rem; }
.tag {
  font-size: 0.75rem;
  padding: 0.25rem 0.65rem;
  border-radius: 3px;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid rgba(224, 91, 54, 0.35);
  font-weight: 600;
}

/* Skills */
.skill-group h3 { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 1rem; }
.skill-group h3 i { font-size: 1.2rem; }
.skill-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.85rem; }
.skill-list li { display: grid; gap: 0.35rem; }
.skill-row { display: flex; justify-content: space-between; font-size: 0.95rem; }
.skill-row span:last-child { color: var(--muted); font-size: 0.85rem; }
.bar { height: 8px; border-radius: 999px; background: var(--bg-elev); overflow: hidden; }
.bar > span {
  display: block;
  height: 100%;
  border-radius: 2px;
  background: var(--accent);
  width: 0;
  transition: width 0.9s ease-out;
}

/* Projects */
.filters { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 2rem; }
.filter-btn {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  padding: 0.5rem 1rem;
  border-radius: 3px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.15s;
}
.filter-btn:hover { color: var(--text); border-color: var(--accent); }
.filter-btn.active { background: var(--accent); color: #05212a; border-color: var(--accent); }

.project-card { display: flex; flex-direction: column; }
.project-card .project-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; }
.project-card .project-head h3 { margin: 0; }
.project-card .project-icon { font-size: 1.6rem; line-height: 1; }
.project-card .project-links { margin-top: auto; padding-top: 1.25rem; display: flex; gap: 0.75rem; }
.project-card .project-links a,
.project-open { font-size: 0.9rem; font-weight: 600; display: inline-flex; align-items: center; gap: 0.35rem; }
.project-open { border: 0; padding: 0; background: none; color: var(--accent); cursor: pointer; font: inherit; }
.project-open:hover { text-decoration: underline; }
.project-card .project-links i { font-size: 16px; }
.project-card.hidden { display: none; }
.empty-state { color: var(--muted); text-align: center; padding: 3rem 0; display: none; }
.empty-state.show { display: block; }
.project-count { color: var(--muted); font-size: 0.9rem; margin: -1.25rem 0 1.5rem; }

/* Project details modal */
body.modal-open { overflow: hidden; }
.project-modal { display: none; position: fixed; inset: 0; z-index: 100; padding: 1.25rem; place-items: center; }
.project-modal.open { display: grid; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(4, 7, 12, 0.8); backdrop-filter: blur(5px); }
.modal-panel { position: relative; width: min(720px, 100%); max-height: min(760px, 90vh); overflow-y: auto; background: var(--bg-card); border: 1px solid var(--accent); border-radius: var(--radius); padding: clamp(1.25rem, 4vw, 2rem); box-shadow: 0 20px 70px rgba(0, 0, 0, 0.55); animation: modal-in 0.2s ease-out; }
.modal-close { position: absolute; top: 1rem; right: 1rem; border: 1px solid var(--border); border-radius: 50%; width: 36px; height: 36px; background: var(--bg-elev); color: var(--text); cursor: pointer; font-size: 1.5rem; line-height: 1; }
.modal-close:hover { border-color: var(--accent); color: var(--accent); }
.modal-heading { display: flex; align-items: center; gap: 1rem; padding-right: 2.5rem; }
.modal-heading .eyebrow { margin-bottom: 0.2rem; }
.modal-heading h2 { margin: 0; }
.modal-icon { display: grid; place-items: center; width: 58px; height: 58px; flex: 0 0 58px; border: 1px dashed var(--accent); border-radius: 10px; background: var(--accent-soft); font-size: 1.8rem; }
.modal-body { display: grid; grid-template-columns: 1fr 0.9fr; gap: 1.5rem; margin-top: 1.5rem; }
.modal-body p { color: var(--muted); margin: 0 0 1rem; }
.modal-label { color: var(--text) !important; font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.demo-box { border: 1px dashed var(--border); border-radius: 10px; padding: 1rem; background: var(--bg-elev); }
.demo-box-head { display: flex; justify-content: space-between; gap: 1rem; }
.demo-box-head .modal-label { margin: 0; }
.demo-status { color: #34d399; font: 0.75rem "JetBrains Mono", monospace; }
.demo-action { border: 1px solid var(--accent); border-radius: 8px; padding: 0.6rem 0.8rem; background: var(--accent-soft); color: var(--accent); cursor: pointer; font: inherit; font-weight: 600; }
.demo-action:hover { background: var(--accent); color: #05212a; }
.demo-output { display: block; min-height: 3.5rem; margin-top: 1rem; padding: 0.7rem; border-left: 2px solid var(--border); color: var(--muted); font-size: 0.85rem; }
.demo-output.done { border-color: #34d399; color: #a7f3d0; }
.modal-actions { display: flex; gap: 0.75rem; margin-top: 1.5rem; }
@keyframes modal-in { from { opacity: 0; transform: translateY(8px) scale(0.98); } to { opacity: 1; transform: translateY(0) scale(1); } }

/* Homepage has its own scrapbook-style introduction */
.home-page main { padding-top: 1.5rem; }
.home-page .hero {
  position: relative;
  min-height: 560px;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 4rem;
  padding: 4rem 0 5rem;
}
.home-page .hero::before {
  content: "YB / 2026";
  position: absolute;
  top: 1.25rem;
  right: 0;
  color: var(--accent);
  font: 0.75rem "JetBrains Mono", monospace;
  letter-spacing: 0.12em;
  transform: rotate(3deg);
}
.home-page .hero > div:first-child { max-width: 610px; }
.home-page .hero h1 { font-size: clamp(3rem, 6vw, 5.2rem); line-height: 0.98; }
.home-page .hero p { max-width: 48ch; }
.home-page .hero-card {
  border: 2px solid var(--border);
  background: #1e3040;
  color: #f5f0e7;
  box-shadow: 10px 10px 0 #e6a36e;
  transform: rotate(2.5deg);
}
.home-page .hero-card .dots span { border: 1px solid rgba(245, 240, 231, 0.4); }
.home-page .hero-card .k { color: #f6b26b; }
.home-page .hero-card .s { color: #9bd2bd; }
.home-page .hero-card .p { color: #f4d06f; }
.home-page .home-note { padding: 2rem; }
.home-page .note-label { display: block; color: #f6b26b; font: 0.75rem "JetBrains Mono", monospace; letter-spacing: 0.08em; text-transform: uppercase; }
.home-page .home-note h2 { margin: 1.5rem 0 0.75rem; color: #f5f0e7; font-size: clamp(1.8rem, 3vw, 2.5rem); line-height: 1.05; }
.home-page .home-note p { color: #d5dedb; font-size: 1rem; }
.home-page .note-list { display: grid; gap: 0.65rem; margin: 1.5rem 0; padding-top: 1.25rem; border-top: 1px solid rgba(245, 240, 231, 0.25); }
.home-page .note-list span { color: #f5f0e7; }
.home-page .note-list strong { display: inline-block; width: 2rem; color: #f6b26b; font: 0.8rem "JetBrains Mono", monospace; }
.home-page .note-signoff { display: inline-block; color: #9bd2bd; font: 0.8rem "JetBrains Mono", monospace; }
.home-page main > section { position: relative; }
.home-page main > section:nth-of-type(2) { padding-top: 3.5rem; border-top: 2px dashed var(--border); }
.home-page main > section:nth-of-type(2) .card { background: rgba(255, 253, 247, 0.68); }

@media (max-width: 680px) {
  .home-page .hero { min-height: auto; padding: 3rem 0 4rem; gap: 2.5rem; }
  .home-page .hero::before { top: 0.75rem; }
  .home-page .hero-card { transform: rotate(1deg); }
}

/* CV / timeline */
.cv-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
.timeline { list-style: none; margin: 0; padding: 0 0 0 1.5rem; border-left: 2px solid var(--border); display: grid; gap: 1.75rem; }
.timeline > li { position: relative; }
.timeline > li::before {
  content: "";
  position: absolute;
  left: calc(-1.5rem - 7px);
  top: 0.45rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--bg);
}
.timeline .when { color: var(--accent); font-size: 0.85rem; font-weight: 700; letter-spacing: 0.05em; }
.timeline .where { color: var(--muted); font-size: 0.95rem; }
.timeline p { color: var(--muted); margin: 0.5rem 0 0; }
.timeline ul { color: var(--muted); margin: 0.5rem 0 0; padding-left: 1.2rem; }

.cv-layout { display: grid; grid-template-columns: 2fr 1fr; gap: 2.5rem; align-items: start; }
.cv-side .card + .card { margin-top: 1.25rem; }
.cv-side ul { margin: 0; padding-left: 1.1rem; color: var(--muted); }
.cv-side li + li { margin-top: 0.35rem; }

/* About */
.about-layout { display: grid; grid-template-columns: 1fr 2fr; gap: 3rem; align-items: start; }
.avatar {
  aspect-ratio: 1;
  width: 100%;
  border-radius: var(--radius);
  object-fit: cover;
  object-position: center 38%;
  box-shadow: var(--shadow);
}
.about-text p { color: var(--muted); font-size: 1.05rem; }
.about-text p:first-of-type { color: var(--text); }
.facts { list-style: none; padding: 0; margin: 1.5rem 0 0; display: grid; gap: 0.5rem; }
.facts li { display: flex; gap: 0.75rem; }
.facts li strong { min-width: 110px; color: var(--text); }
.facts li span { color: var(--muted); }

/* Contact */
.contact-layout { display: grid; grid-template-columns: 1fr 1.3fr; gap: 2.5rem; align-items: start; }
.contact-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.85rem; }
.contact-list a {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  background: var(--bg-card);
  transition: border-color 0.15s, transform 0.15s;
}
.contact-list a:hover { border-color: var(--accent); text-decoration: none; transform: translateY(-1px); }
.contact-list i { font-size: 22px; color: var(--accent); flex-shrink: 0; }
.contact-list small { display: block; color: var(--muted); font-size: 0.8rem; }

form { display: grid; gap: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
label { display: grid; gap: 0.4rem; font-size: 0.9rem; font-weight: 600; }
input, textarea {
  width: 100%;
  padding: 0.8rem 0.95rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text);
  font: inherit;
  font-weight: 400;
}
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
textarea { resize: vertical; min-height: 140px; }
.form-status { color: var(--muted); font-size: 0.9rem; min-height: 1.4em; }
.form-status.ok { color: #34d399; }
.form-status.err { color: #f87171; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.75rem 0;
  color: var(--muted);
  font-size: 0.9rem;
}
.site-footer .container { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; }
.site-footer .nav-social { margin: 0; }

/* Responsive */
@media (max-width: 900px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .hero { grid-template-columns: 1fr; }
  .cv-layout, .about-layout, .contact-layout { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .grid-3, .grid-2, .form-row { grid-template-columns: 1fr; }
  .nav-toggle { display: inline-flex; }
  .nav-links {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--bg-elev);
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 1.25rem 1rem;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { display: block; }
  .nav-social { margin: 0.5rem 0 0; }
  .avatar { max-width: 220px; }
  .modal-body { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}