@import url('https://fonts.googleapis.com/css2?family=Barlow:ital,wght@0,300;0,400;0,500;0,600;1,400&family=Barlow+Condensed:wght@400;500;600;700&display=swap');

:root {
  --navy:       #1a2332;
  --navy-light: #253044;
  --navy-dim:   #2a3a50;
  --amber:      #e8a020;
  --amber-dark: #c4851a;
  --amber-light:#fff3dc;
  --blue-eng:   #1a5fa5;
  --blue-light: #e6f1fb;
  --steel:      #8a9ab0;
  --steel-dim:  #6a7a90;
  --steel-dark: #4a5a70;
  --bg:         #f8f9fa;
  --bg-card:    #ffffff;
  --border:     #e0e4e8;
  --border-dark:#c8cdd4;
  --text:       #1a2332;
  --text-muted: #4a5568;
  --text-dim:   #7a8a9a;
  --nav-h:      56px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Barlow', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
}

/* ── Nav ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: var(--navy);
  border-bottom: 2px solid var(--amber);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2.5rem;
  z-index: 100;
}

.nav-logo {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  letter-spacing: 1px;
}

.nav-logo span { color: var(--amber); }

.nav-links { display: flex; gap: 2rem; list-style: none; }

.nav-links a {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--steel);
  text-decoration: none;
  transition: color 0.15s;
}

.nav-links a:hover { color: #fff; }
.nav-links a.active { color: var(--amber); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 20px; height: 1.5px; background: var(--steel); transition: all 0.2s; }

/* ── Page wrapper ── */
.page { padding-top: var(--nav-h); }

/* ── Container ── */
.container { max-width: 900px; margin: 0 auto; padding: 0 2rem; }

/* ── Section header ── */
.section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 1.5rem;
}

.section-rule { flex: 1; height: 1px; background: var(--border); }

.section-eyebrow {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 11px;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: 2px;
  text-transform: uppercase;
  white-space: nowrap;
}

.section-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--navy);
  letter-spacing: 0.5px;
  margin-bottom: 1.5rem;
}

/* ── Light section ── */
.light-section {
  background: var(--bg);
  padding: 4rem 0;
  border-top: 1px solid var(--border);
}

.light-section + .light-section { border-top: 1px solid var(--border); }

/* ── Dark section (hero style) ── */
.dark-section {
  background: var(--navy);
  padding: 4rem 0;
  position: relative;
  overflow: hidden;
}

.dark-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(#ffffff05 1px, transparent 1px),
    linear-gradient(90deg, #ffffff05 1px, transparent 1px);
  background-size: 30px 30px;
  pointer-events: none;
}

.dark-section .section-rule { background: var(--navy-dim); }
.dark-section .section-title { color: #fff; }

/* ── Accent bar ── */
.accent-bar {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--amber);
}

/* ── Skill cards ── */
.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--amber);
  border-radius: 0 4px 4px 0;
  padding: 1rem 1.1rem;
}

.skill-card.eng-blue  { border-left-color: var(--blue-eng); }
.skill-card.eng-gray  { border-left-color: #5f5e5a; }
.skill-card.eng-green { border-left-color: #3b6d11; }

.skill-cat {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 11px;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.tags { display: flex; flex-wrap: wrap; gap: 4px; }

.tag {
  padding: 2px 8px;
  border-radius: 2px;
  font-size: 10px;
  font-weight: 500;
  background: #f0f2f4;
  border: 0.5px solid var(--border-dark);
  color: var(--text-muted);
}

.tag-amber  { background: #fff8ed; border-color: var(--amber); color: #854f0b; }
.tag-blue   { background: var(--blue-light); border-color: var(--blue-eng); color: #0c447c; }

/* ── Project cards ── */
.proj-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  transition: border-color 0.2s, transform 0.15s;
}

.proj-card:hover { border-color: var(--amber); transform: translateY(-2px); }

.proj-card-bar { height: 4px; background: var(--amber); }
.proj-card-bar.blue { background: var(--blue-eng); }

.proj-thumb {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  display: block;
  border-bottom: 1px solid var(--border);
}

.proj-body { padding: 1.1rem; flex: 1; display: flex; flex-direction: column; }

.proj-type {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 10px;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 5px;
}

.proj-type.blue { color: var(--blue-eng); }

.proj-name {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 6px;
  line-height: 1.2;
}

.proj-desc { font-size: 12px; color: var(--text-muted); line-height: 1.7; margin-bottom: 10px; flex: 1; }

.stack { display: flex; flex-wrap: wrap; gap: 4px; }

.stag {
  background: #f0f2f4;
  border-radius: 2px;
  padding: 2px 6px;
  font-size: 9px;
  font-weight: 600;
  color: var(--text-dim);
  border: 0.5px solid var(--border-dark);
  font-family: 'Barlow Condensed', sans-serif;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.proj-footer {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.proj-meta {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.proj-arrow { font-size: 14px; color: var(--amber); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  text-decoration: none;
  padding: 10px 22px;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.15s;
  border: none;
}

.btn-primary { background: var(--amber); color: var(--navy); }
.btn-primary:hover { background: var(--amber-dark); }

.btn-ghost {
  background: transparent;
  color: var(--steel);
  border: 1.5px solid var(--navy-dim);
}
.btn-ghost:hover { border-color: var(--amber); color: var(--amber); }

.btn-ghost-light {
  background: transparent;
  color: var(--steel);
  border: 1.5px solid #3a4a60;
}
.btn-ghost-light:hover { border-color: var(--amber); color: var(--amber); }

/* ── Timeline ── */
.timeline { position: relative; padding-left: 1.5rem; }
.timeline::before { content: ''; position: absolute; left: 0; top: 8px; bottom: 8px; width: 2px; background: var(--border); }

.tl-item { position: relative; margin-bottom: 2rem; }
.tl-item::before { content: ''; position: absolute; left: -1.6rem; top: 7px; width: 10px; height: 10px; border-radius: 50%; background: #fff; border: 2px solid var(--border-dark); }
.tl-item.current::before { background: var(--amber); border-color: var(--amber); }

.tl-period { font-family: 'Barlow Condensed', sans-serif; font-size: 10px; font-weight: 700; color: var(--amber); letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 3px; }
.tl-role { font-family: 'Barlow Condensed', sans-serif; font-size: 16px; font-weight: 700; color: var(--navy); margin-bottom: 2px; }
.tl-company { font-size: 13px; color: var(--blue-eng); font-weight: 500; margin-bottom: 6px; }
.tl-desc { font-size: 13px; color: var(--text-muted); line-height: 1.7; }

/* ── Education cards ── */
.edu-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1rem 1.2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.edu-degree { font-family: 'Barlow Condensed', sans-serif; font-size: 15px; font-weight: 700; color: var(--navy); margin-bottom: 3px; }
.edu-school { font-size: 12px; color: var(--blue-eng); font-weight: 500; }
.edu-period { font-family: 'Barlow Condensed', sans-serif; font-size: 12px; font-weight: 700; color: var(--text-dim); white-space: nowrap; letter-spacing: 0.5px; }

/* ── Cert items ── */
.cert-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.8rem 1.1rem;
  display: flex;
  align-items: center;
  gap: 12px;
}

.cert-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--amber); flex-shrink: 0; }
.cert-name { font-size: 13px; color: var(--text-muted); line-height: 1.5; }

/* ── Contact ── */
.contact-link {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1rem 1.2rem;
  text-decoration: none;
  transition: border-color 0.2s;
}

.contact-link:hover { border-color: var(--amber); }

.cl-icon {
  width: 38px; height: 38px;
  border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
  background: var(--navy);
  color: var(--amber);
  border: 1px solid var(--navy-dim);
}

.cl-body { flex: 1; }
.cl-label { font-family: 'Barlow Condensed', sans-serif; font-size: 10px; font-weight: 700; color: var(--text-dim); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 2px; }
.cl-value { font-size: 13px; color: var(--text-muted); font-weight: 500; }
.cl-arrow { font-size: 14px; color: var(--amber); }

/* ── CV block ── */
.cv-block {
  background: var(--navy);
  border-radius: 4px;
  padding: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.cv-block p { font-family: 'Barlow Condensed', sans-serif; font-size: 15px; font-weight: 500; color: var(--steel); letter-spacing: 0.5px; }
.cv-btns { display: flex; gap: 8px; }

/* ── Back link ── */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-dim);
  text-decoration: none;
  margin-bottom: 2rem;
  transition: color 0.15s;
}

.back-link:hover { color: var(--amber); }

/* ── Sidebar ── */
.sidebar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.1rem;
  margin-bottom: 10px;
}

.sidebar-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 10px;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 10px;
}

/* ── Footer ── */
footer {
  background: var(--navy);
  border-top: 2px solid var(--amber);
  padding: 1.5rem 2rem;
  text-align: center;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 13px;
  font-weight: 500;
  color: var(--steel-dark);
  letter-spacing: 0.5px;
}

footer a { color: var(--amber); text-decoration: none; }

/* ── Project detail ── */
.proj-header { margin-bottom: 3rem; padding-bottom: 2rem; border-bottom: 1px solid var(--border); }
.proj-category { font-family: 'Barlow Condensed', sans-serif; font-size: 11px; font-weight: 700; color: var(--amber); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
.cat-bar { width: 20px; height: 2px; background: var(--amber); }
.proj-title { font-family: 'Barlow Condensed', sans-serif; font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 700; color: var(--navy); letter-spacing: 0px; margin-bottom: 1rem; line-height: 1.1; }
.proj-subtitle { font-size: 15px; color: var(--text-muted); line-height: 1.7; max-width: 640px; }
.meta-row { display: flex; gap: 2rem; flex-wrap: wrap; margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }
.meta-label { font-family: 'Barlow Condensed', sans-serif; font-size: 9px; font-weight: 700; color: var(--text-dim); letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 3px; }
.meta-value { font-size: 13px; color: var(--text-muted); font-weight: 500; }

/* ── Gallery ── */
.gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin-bottom: 3rem; }
.gallery img { width: 100%; border-radius: 4px; border: 1px solid var(--border); object-fit: cover; aspect-ratio: 16/9; display: block; transition: border-color 0.2s; }
.gallery img:first-child { grid-column: span 2; aspect-ratio: 21/9; }
.gallery img:hover { border-color: var(--amber); }

/* ── Prose ── */
.prose h2 { font-family: 'Barlow Condensed', sans-serif; font-size: 1.1rem; font-weight: 700; color: var(--navy); letter-spacing: 1px; text-transform: uppercase; margin: 2rem 0 0.8rem; padding-bottom: 6px; border-bottom: 2px solid var(--amber); display: inline-block; }
.prose h2:first-child { margin-top: 0; }
.prose p { font-size: 14px; color: var(--text-muted); line-height: 1.85; margin-bottom: 1rem; }
.prose ul { list-style: none; padding: 0; margin-bottom: 1rem; }
.prose ul li { font-size: 14px; color: var(--text-muted); line-height: 1.8; padding-left: 1.2rem; position: relative; margin-bottom: 4px; }
.prose ul li::before { content: '▸'; position: absolute; left: 0; color: var(--amber); font-size: 10px; top: 4px; }

/* ── Highlight boxes ── */
.highlight-box { background: var(--navy); border-radius: 4px; padding: 1.1rem 1.2rem; margin-bottom: 10px; }
.highlight-num { font-family: 'Barlow Condensed', sans-serif; font-size: 2.2rem; font-weight: 700; color: var(--amber); line-height: 1; margin-bottom: 4px; }
.highlight-label { font-size: 11px; color: var(--steel-dark); letter-spacing: 0.5px; font-family: 'Barlow Condensed', sans-serif; text-transform: uppercase; }

/* ── Forms ── */
label { display: block; font-family: 'Barlow Condensed', sans-serif; font-size: 11px; font-weight: 700; color: var(--text-dim); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 6px; }
input, textarea { width: 100%; background: var(--bg-card); border: 1px solid var(--border); border-radius: 2px; padding: 10px 14px; font-family: 'Barlow', sans-serif; font-size: 14px; color: var(--text); outline: none; transition: border-color 0.15s; }
input:focus, textarea:focus { border-color: var(--amber); }
input::placeholder, textarea::placeholder { color: var(--text-dim); }
textarea { resize: vertical; min-height: 130px; }

/* ── Responsive ── */
@media (max-width: 640px) {
  nav { padding: 0 1.2rem; }

  .nav-links { display: none; position: absolute; top: var(--nav-h); left: 0; right: 0; background: var(--navy); border-bottom: 2px solid var(--amber); flex-direction: column; gap: 0; padding: 0.5rem 0; }
  .nav-links.open { display: flex; }
  .nav-links li { border-bottom: 0.5px solid var(--navy-dim); }
  .nav-links a { display: block; padding: 0.8rem 1.5rem; }

  .nav-toggle { display: flex; }
  .container { padding: 0 1.2rem; }
  .light-section { padding: 3rem 0; }
}