/* ============================================================
   style.css — light default, dark override, Plus Jakarta Sans
   ============================================================ */

/* ── Light theme (default) ───────────────────────────────── */
:root {
  --bg:          #f5f7fa;
  --surface:     #ffffff;
  --surface-2:   #eef2f7;
  --border:      rgba(0, 0, 0, 0.09);
  --border-h:    rgba(29, 111, 164, 0.45);
  --text:        #0f172a;
  --muted:       #5a6a80;
  --accent:      #1d6fa4;
  --accent-dim:  rgba(29, 111, 164, 0.08);
  --accent-glow: rgba(29, 111, 164, 0.18);
  --green:       #15803d;
  --nav-bg:      #ffffff;
  --nav-shadow:  0 1px 0 rgba(0,0,0,0.08), 0 4px 20px rgba(0,0,0,0.06);
  --card-shadow: 0 1px 4px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.04);
  --photo-border: #ffffff;
  --photo-shadow: 0 4px 20px rgba(0,0,0,0.14);
  --font:        'Plus Jakarta Sans', system-ui, sans-serif;
  --mono:        'JetBrains Mono', monospace;
  --max-w:       1100px;
  --radius:      8px;
}

/* ── Dark theme override ─────────────────────────────────── */
html.dark {
  --bg:          #0d1117;
  --surface:     #161b27;
  --surface-2:   #1e2535;
  --border:      rgba(255, 255, 255, 0.08);
  --border-h:    rgba(99, 179, 237, 0.45);
  --text:        #e2e8f0;
  --muted:       #8892a4;
  --accent:      #63b3ed;
  --accent-dim:  rgba(99, 179, 237, 0.13);
  --accent-glow: rgba(99, 179, 237, 0.22);
  --green:       #68d391;
  --nav-bg:      #0d1523;
  --nav-shadow:  0 1px 0 rgba(255,255,255,0.06), 0 4px 20px rgba(0,0,0,0.4);
  --card-shadow: 0 2px 16px rgba(0,0,0,0.3);
  --photo-border: rgba(255,255,255,0.18);
  --photo-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

/* ── Smooth transitions on theme switch ──────────────────── */
body,
#main-nav,
.card,
.skill-card,
.profile-photo-placeholder {
  transition: background-color 0.28s ease, color 0.28s ease, border-color 0.28s ease, box-shadow 0.28s ease;
}

/* ── Reset ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; transition: opacity 0.2s; }
a:hover { opacity: 0.72; }

/* ── Layout ──────────────────────────────────────────────── */
.wrapper {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

/* ── Navigation ──────────────────────────────────────────── */
#main-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--nav-bg);
  box-shadow: var(--nav-shadow);
  /* top accent stripe */
  border-top: 3px solid transparent;
  border-image: linear-gradient(90deg, var(--accent) 0%, #805ad5 100%) 1;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 54px;
  gap: 1rem;
}
.nav-brand {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
  flex-shrink: 0;
  opacity: 1;
}
.nav-brand span { color: var(--accent); }

.nav-links {
  display: flex;
  list-style: none;
  gap: 0;
  flex: 1;
  justify-content: flex-end;
}
.nav-links a {
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--muted);
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  transition: color 0.2s, background 0.2s;
  white-space: nowrap;
  display: block;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: var(--accent-dim);
  opacity: 1;
}
.nav-cta {
  color: var(--accent) !important;
  border: 1px solid var(--border-h);
  margin-left: 0.4rem;
}
.nav-cta:hover { background: var(--accent-dim) !important; }

/* right cluster: toggle + hamburger */
.nav-right {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  flex-shrink: 0;
}

/* theme toggle */
#theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 7px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--muted);
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
#theme-toggle:hover {
  background: var(--accent-dim);
  border-color: var(--border-h);
  color: var(--accent);
}
/* dark = show sun; light = show moon */
.icon-moon { display: none; }
.icon-sun  { display: block; }
html.dark .icon-sun  { display: none; }
html.dark .icon-moon { display: block; }

/* hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px 4px;
  border-radius: 6px;
  transition: background 0.2s;
}
.hamburger:hover { background: var(--accent-dim); }
.hamburger span {
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  display: block;
  transition: background 0.2s;
}

/* ── Profile header ──────────────────────────────────────── */
header#about {
  padding: 3.5rem 0 2rem;
}
.profile-grid {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 2.4rem;
  align-items: stretch;
}

/* Photo */
.photo-col {
  position: relative;
  display: flex;
  justify-content: center;
  border-radius: var(--radius);
  overflow: hidden;
  border: 4px solid var(--photo-border);
  box-shadow: var(--photo-shadow);
}
.profile-photo,
.profile-photo-placeholder {
  width: 150px;
  height: 100%;
  border-radius: var(--radius);
  display: block;
}
@keyframes photo-zoom-in {
  from { transform: scale(1); }
  to   { transform: scale(1.5); }
}
.profile-photo {
  object-fit: cover;
  object-position: center;
  transform: scale(1.07);
  animation: photo-zoom-in 1.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}
.profile-photo-placeholder {
  background: var(--surface-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.8rem;
}

/* Info */
.greeting {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--accent);
  margin-bottom: 0.3rem;
  letter-spacing: 0.04em;
}
.info-col h1 {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--text);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 0.3rem;
}
.profile-subtitle {
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--muted);
  font-family: var(--mono);
  letter-spacing: 0.02em;
  margin-bottom: 0.85rem;
}
.profile-bio {
  font-size: 0.93rem;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 1.2rem;
  text-align: justify;
}
.contact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
}
.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.83rem;
  font-weight: 500;
  color: var(--muted);
  transition: color 0.2s;
  min-height: 32px;
}
.contact-link:hover { color: var(--accent); opacity: 1; }
.contact-link svg { flex-shrink: 0; }

/* ── Sections ────────────────────────────────────────────── */
section {
  padding: 2.8rem 0;
  border-top: 1px solid var(--border);
}
.section-heading {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
  margin-bottom: 1.4rem;
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
}
.section-num {
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.05em;
}

/* ── Cards ───────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.3rem 1.5rem;
  margin-bottom: 0.9rem;
  box-shadow: var(--card-shadow);
  transition: border-color 0.2s, box-shadow 0.2s, background-color 0.28s;
}
.card:last-child { margin-bottom: 0; }
.card:hover {
  border-color: var(--border-h);
  box-shadow: 0 0 0 1px var(--accent-glow), var(--card-shadow);
}

/* ── Tags ────────────────────────────────────────────────── */
.tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.75rem; }
.tag {
  font-family: var(--mono);
  font-size: 0.71rem;
  font-weight: 500;
  padding: 0.18rem 0.6rem;
  border-radius: 4px;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
}

/* ── Experience ──────────────────────────────────────────── */
.exp-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}
.exp-role { font-size: 1rem; font-weight: 700; color: var(--text); }
.exp-company { font-size: 0.85rem; color: var(--muted); margin-top: 0.1rem; }
.exp-period {
  font-family: var(--mono);
  font-size: 0.73rem;
  color: var(--muted);
  white-space: nowrap;
  flex-shrink: 0;
  padding-top: 0.15rem;
}
.exp-desc { font-size: 0.9rem; color: var(--muted); line-height: 1.65; }
.exp-bullets {
  margin: 0.5rem 0 0;
  padding-left: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.exp-bullets li {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.65;
}

/* ── Projects ────────────────────────────────────────────── */
.project-card--with-shots {
  display: flex;
  padding: 0;
  overflow: hidden;
}
.project-card--with-shots .project-content {
  flex: 1;
  min-width: 0;
  padding: 1.3rem 1.5rem;
  display: flex;
  flex-direction: column;
}
.project-shots {
  display: flex;
  flex-direction: row;
  align-items: center;
  align-self: stretch;
  width: 480px;
  flex-shrink: 0;
  overflow: hidden;
  gap: 0px;
}
.project-shots img {
  flex: 1;
  min-width: 0;
  width: 100%;
  max-height: 100%;
  height: auto;
  object-fit: contain;
  object-position: center;
  display: block;
}
.project-shots--single {
  padding: 1rem;
}
.project-shots--single img {
  border-radius: 8px;
}

.project-img {
  width: 100%;
  border-radius: 5px;
  margin-bottom: 1rem;
  border: 1px solid var(--border);
}
.project-card:not(.project-card--with-shots) { display: flex; flex-direction: column; }
.project-name { font-size: 1.05rem; font-weight: 700; color: var(--text); margin-bottom: 0.4rem; }
.project-desc { font-size: 0.9rem; color: var(--muted); line-height: 1.65; }
.project-links {
  display: flex;
  gap: 0.7rem;
  margin-top: auto;
  padding-top: 0.9rem;
  flex-wrap: wrap;
}
.project-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  padding: 0.35rem 0.9rem;
  border-radius: 6px;
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  background: var(--accent-dim);
  transition: all 0.2s;
  opacity: 1;
  min-height: 36px;
}
.project-links a:hover {
  background: var(--accent-glow);
  border-color: var(--accent);
}

/* ── App Store grid ──────────────────────────────────────── */
.subsection-heading {
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-top: 1.8rem;
  margin-bottom: 0.85rem;
}
.apps-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem;
}
.app-card {
  display: flex;
  flex-direction: column;
  margin-bottom: 0;
}
.app-icon {
  width: 48px;
  height: 48px;
  border-radius: 11px;
  object-fit: cover;
  margin-bottom: 0.75rem;
  border: 1px solid var(--border);
}

/* ── Education ───────────────────────────────────────────── */
.edu-card { display: flex; gap: 1.5rem; align-items: flex-start; }
.edu-main { flex: 1; min-width: 0; }
.edu-logo-col {
  flex-shrink: 0;
  display: flex;
  align-items: flex-start;
  padding-top: 0.1rem;
}
.edu-logo {
  width: 72px;
  height: auto;
  object-fit: contain;
  opacity: 0.9;
  border-radius: 4px;
}
html.dark .edu-logo { filter: brightness(0.85) contrast(1.05); }

.edu-degree { font-size: 1rem; font-weight: 700; color: var(--text); }
.edu-school { font-size: 0.85rem; color: var(--muted); margin: 0.2rem 0 0.4rem; }
.edu-honours {
  font-weight: bold;
  font-size: 0.85rem;
  color: var(--text);
  margin-bottom: 0.5rem;
}
.coursework-label {
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin: 0.6rem 0 0.45rem;
}

/* ── Skills ──────────────────────────────────────────────── */
.skills-rows {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.skill-row {
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
}
.skill-row-label {
  font-family: var(--mono);
  font-size: 0.71rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  white-space: nowrap;
  padding-top: 0.3rem;
  width: 110px;
  flex-shrink: 0;
}
.skill-pills { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.skill-pill {
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.28rem 0.7rem;
  border-radius: 50px;
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  transition: border-color 0.2s, color 0.2s, background 0.2s;
  cursor: default;
}
.skill-pill:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

/* ── Footer ──────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0 2.5rem;
  margin-top: 1rem;
}
footer .wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--muted);
}
.footer-sep { opacity: 0.3; }

/* ── Responsive: tablet ──────────────────────────────────── */
@media (max-width: 1024px) {
  .project-shots { display: none; }
  .project-card--with-shots { padding: 1.3rem 1.5rem; }
  .project-card--with-shots .project-content { padding: 0; }
}

@media (max-width: 768px) {
  header#about { padding: 2.5rem 0 1.8rem; }
  section { padding: 2.2rem 0; }
}

/* ── Responsive: mobile ──────────────────────────────────── */
@media (max-width: 600px) {
  .hamburger { display: flex; }

  /* full-width dropdown menu */
  .nav-links {
    display: none;
    position: absolute;
    top: 54px; left: 0; right: 0;
    flex-direction: column;
    background: var(--nav-bg);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    padding: 0.6rem 1rem 1rem;
    gap: 0;
    justify-content: flex-start;
    flex: unset;
    z-index: 99;
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a { padding: 0.75rem 1rem; font-size: 0.95rem; border-radius: 8px; width: 100%; }
  .nav-cta { margin-left: 0; margin-top: 0.3rem; }

  /* stacked, centred profile */
  .profile-grid {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
    gap: 1.6rem;
  }
  .profile-photo,
  .profile-photo-placeholder {
    width: 120px;
    height: auto;
    aspect-ratio: 3 / 4;
  }
  .profile-photo-placeholder { font-size: 3rem; }
  .contact-row { justify-content: center; }
  .info-col h1 { font-size: 2rem; }

  .apps-grid { grid-template-columns: 1fr; }
  .card { padding: 1rem 1.1rem; }
  .edu-card { flex-direction: column-reverse; gap: 1rem; }
  .edu-logo { width: 56px; }
  .skill-row { flex-direction: column; gap: 0.3rem; }
  .skill-row-label { width: auto; padding-top: 0; }
  .exp-header { flex-direction: column; gap: 0.2rem; }
  .exp-period { align-self: flex-start; }

  section { padding: 1.8rem 0; }
  header#about { padding: 2rem 0 1.4rem; }
  footer .wrapper { flex-direction: column; gap: 0.3rem; }
  .footer-sep { display: none; }
}

/* ── Responsive: very small ──────────────────────────────── */
@media (max-width: 380px) {
  .wrapper, .nav-inner { padding-left: 1rem; padding-right: 1rem; }
  .info-col h1 { font-size: 1.75rem; }
  .skill-pill { font-size: 0.75rem; padding: 0.22rem 0.55rem; }
}