/* =========================================================
   Jacob Bryan — Portfolio Stylesheet
   css/style.css
   ========================================================= */

/* ----- Reset ----- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* =========================================================
   LIGHT MODE (default)
   ========================================================= */
:root {
  --bg:             #ffffff;
  --surface:        #f8fafc;
  --surface2:       #f1f5f9;
  --border:         #e2e8f0;
  --border2:        #cbd5e1;
  --accent:         #1d4ed8;
  --accent-light:   #3b82f6;
  --accent-bg:      #eff6ff;
  --accent-border:  #bfdbfe;
  --text:           #0f172a;
  --text2:          #334155;
  --muted:          #64748b;
  --dim:            #94a3b8;

  /* Award colours don't change between modes */
  --gold-bg:        #fef9c3;
  --gold-border:    #fde68a;
  --gold-text:      #854d0e;
  --gold-stroke:    #b45309;

  --mono: 'IBM Plex Mono', monospace;
  --sans: 'Inter', sans-serif;

  /* Transition applied to every colour-bearing property */
  --transition: background-color 0.25s ease, color 0.25s ease,
                border-color 0.25s ease, box-shadow 0.25s ease;
}

/* =========================================================
   DARK MODE
   ========================================================= */
[data-theme="dark"] {
  --bg:             #0a0e17;
  --surface:        #111827;
  --surface2:       #1a2235;
  --border:         #1e2d45;
  --border2:        #2d3f5e;
  --accent:         #3b82f6;
  --accent-light:   #60a5fa;
  --accent-bg:      rgba(59,130,246,0.08);
  --accent-border:  rgba(59,130,246,0.25);
  --text:           #e2e8f0;
  --text2:          #cbd5e1;
  --muted:          #64748b;
  --dim:            #475569;
}

/* =========================================================
   BASE
   ========================================================= */
html { scroll-behavior: smooth; }

body {
  background:   var(--bg);
  color:        var(--text);
  font-family:  var(--sans);
  font-size:    16px;
  line-height:  1.6;
  transition:   var(--transition);
}

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


/* =========================================================
   NAVIGATION
   ========================================================= */
nav {
  position:         sticky;
  top:              0;
  z-index:          100;
  background:       rgba(255,255,255,0.96);
  backdrop-filter:  blur(10px);
  border-bottom:    1px solid var(--border);
  padding:          0 2rem;
  height:           52px;
  display:          flex;
  align-items:      center;
  justify-content:  space-between;
  transition:       var(--transition);
}

[data-theme="dark"] nav { background: rgba(10,14,23,0.96); }

.nav-logo {
  font-family:     var(--mono);
  font-size:       13px;
  color:           var(--accent);
  font-weight:     500;
  letter-spacing:  0.02em;
  flex-shrink:     0;
}

.nav-right {
  display:     flex;
  align-items: center;
  gap:         0.75rem;
}

/* Desktop links */
.nav-links {
  display:     flex;
  gap:         1.4rem;
  list-style:  none;
}

.nav-links a {
  font-size:  13px;
  color:      var(--muted);
  transition: color 0.2s;
}

.nav-logo { text-decoration: none; }

.nav-links a:hover { color: var(--text); text-decoration: none; }

/* ----- Dark mode toggle button ----- */
.theme-toggle {
  display:          flex;
  align-items:      center;
  justify-content:  center;
  width:            34px;
  height:           34px;
  border-radius:    8px;
  border:           1px solid var(--border2);
  background:       var(--surface);
  cursor:           pointer;
  color:            var(--muted);
  flex-shrink:      0;
  transition:       var(--transition);
}

.theme-toggle:hover {
  border-color: var(--accent-light);
  color:        var(--accent);
  background:   var(--accent-bg);
}

.theme-toggle svg { width: 16px; height: 16px; }

/* Show sun in dark mode, moon in light mode */
.icon-moon { display: block; }
.icon-sun  { display: none;  }
[data-theme="dark"] .icon-moon { display: none;  }
[data-theme="dark"] .icon-sun  { display: block; }

/* ----- Hamburger button — hidden on desktop ----- */
.nav-toggle {
  display:         none;
  flex-direction:  column;
  justify-content: center;
  gap:             5px;
  width:           36px;
  height:          36px;
  padding:         6px;
  background:      none;
  border:          1px solid var(--border);
  border-radius:   6px;
  cursor:          pointer;
  flex-shrink:     0;
  transition:      var(--transition);
}

.nav-toggle span {
  display:          block;
  width:            100%;
  height:           1.5px;
  background:       var(--text2);
  border-radius:    2px;
  transition:       transform 0.22s, opacity 0.22s;
  transform-origin: center;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }


/* =========================================================
   MOBILE NAV
   ========================================================= */
@media (max-width: 700px) {
  nav {
    flex-wrap: wrap;
    height:    auto;
    padding:   0.75rem 1.25rem;
  }

  .nav-toggle { display: flex; }

  .nav-links {
    /* Use max-height + overflow instead of display:none so the
       toggle works reliably on all mobile browsers */
    display:        flex;
    flex-direction: column;
    gap:            0;
    width:          100%;
    padding:        0;
    border-top:     none;
    margin-top:     0;
    order:          3;

    /* Hidden state */
    max-height:     0;
    overflow:       hidden;
    visibility:     hidden;
    transition:     max-height 0.25s ease, visibility 0.25s ease, padding 0.25s ease;
  }

  .nav-links.is-open {
    max-height:  500px;
    visibility:  visible;
    padding:     0.5rem 0 0.75rem;
    border-top:  1px solid var(--border);
    margin-top:  0.5rem;
  }

  .nav-links li a {
    display:       block;
    padding:       0.55rem 0;
    font-size:     14px;
    color:         var(--text2);
    border-bottom: 1px solid var(--border);
  }

  .nav-links li:last-child a { border-bottom: none; }

  .nav-right { gap: 0.5rem; }
}


/* =========================================================
   LAYOUT
   ========================================================= */
.wrap { max-width: 760px; margin: 0 auto; padding: 0 2rem; }


/* =========================================================
   HERO
   ========================================================= */
.hero {
  padding:    5rem 2rem 4rem;
  max-width:  760px;
  margin:     0 auto;
}

.hero-eyebrow {
  font-family:    var(--mono);
  font-size:      11px;
  color:          var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom:  1.25rem;
  display:        flex;
  align-items:    center;
  gap:            10px;
}

.hero-eyebrow::before {
  content:    '';
  width:      20px;
  height:     1.5px;
  background: var(--accent);
}

h1 {
  font-size:       clamp(2.2rem, 5vw, 3.2rem);
  font-weight:     600;
  line-height:     1.12;
  letter-spacing:  -0.03em;
  color:           var(--text);
  margin-bottom:   1rem;
}

h1 .blue { color: var(--accent); }

.hero-sub {
  font-size:     1.05rem;
  color:         var(--text2);
  max-width:     540px;
  line-height:   1.75;
  margin-bottom: 2rem;
}

.hero-chips { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 2.5rem; }

.chip {
  font-family:  var(--mono);
  font-size:    11px;
  padding:      4px 10px;
  border:       1px solid var(--border2);
  border-radius: 4px;
  color:        var(--muted);
  background:   var(--surface);
  transition:   var(--transition);
}

.chip.hi {
  border-color: var(--accent-border);
  color:        var(--accent);
  background:   var(--accent-bg);
}

.cta-row { display: flex; gap: 10px; flex-wrap: wrap; }

.btn {
  display:      inline-flex;
  align-items:  center;
  gap:          6px;
  font-size:    13px;
  padding:      8px 18px;
  border-radius: 6px;
  font-weight:  500;
  transition:   all 0.18s;
  cursor:       pointer;
  border:       none;
  font-family:  var(--sans);
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #1e40af; text-decoration: none; color: #fff; }

[data-theme="dark"] .btn-primary:hover { background: #2563eb; }

.btn-ghost { background: transparent; color: var(--text2); border: 1px solid var(--border2); }
.btn-ghost:hover { border-color: var(--accent-light); color: var(--accent); background: var(--accent-bg); text-decoration: none; }


/* =========================================================
   SECTIONS
   ========================================================= */
section { padding: 3.5rem 0; border-top: 1px solid var(--border); }

.section-label {
  font-family:    var(--mono);
  font-size:      11px;
  color:          var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom:  1.75rem;
  display:        flex;
  align-items:    center;
  gap:            12px;
}

.section-label::after { content: ''; flex: 1; height: 1px; background: var(--border); }


/* =========================================================
   ABOUT
   ========================================================= */
.about-text {
  font-size:     15px;
  color:         var(--text2);
  line-height:   1.8;
  max-width:     620px;
  margin-bottom: 1.75rem;
}

.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.about-card {
  background:    var(--surface);
  border:        1px solid var(--border);
  border-radius: 8px;
  padding:       1rem 1.1rem;
  transition:    var(--transition);
}

.about-card h3 {
  font-size:      11px;
  font-family:    var(--mono);
  color:          var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom:  5px;
}

.about-card p { font-size: 13.5px; color: var(--text2); }


/* =========================================================
   EXPERIENCE TIMELINE
   ========================================================= */
.tl-item {
  display:       grid;
  grid-template-columns: 110px 1fr;
  gap:           1.5rem;
  padding:       1.5rem 0;
  border-bottom: 1px solid var(--border);
}

.tl-item:last-child { border-bottom: none; }

.tl-left {
  display:        flex;
  flex-direction: column;
  align-items:    flex-start;
  gap:            10px;
  padding-top:    2px;
}

.tl-date { font-family: var(--mono); font-size: 10.5px; color: var(--dim); line-height: 1.5; }

.tl-logo {
  width:         52px;
  height:        52px;
  border-radius: 10px;
  border:        1px solid var(--border);
  background:    var(--surface);
  overflow:      hidden;
  display:       flex;
  align-items:   center;
  justify-content: center;
  flex-shrink:   0;
  transition:    var(--transition);
}

/* In dark mode, give logo tiles a white background so coloured logos still read */
[data-theme="dark"] .tl-logo { background: #ffffff; border-color: var(--border2); }
[data-theme="dark"] .edu-logo { background: #ffffff; border-color: var(--border2); }

.tl-logo img { width: 100%; height: 100%; object-fit: contain; padding: 6px; }

/* OLT — wide landscape wordmark, fill tile */
.tl-logo--olt img { padding: 0; object-fit: cover; object-position: center; }

.logo-fallback { font-family: var(--mono); font-size: 11px; font-weight: 600; color: var(--accent); }

.tl-content h3 { font-size: 15px; font-weight: 500; margin-bottom: 2px; color: var(--text); }

.tl-org { font-size: 13px; color: var(--accent-light); margin-bottom: 8px; display: flex; align-items: center; gap: 7px; }

.tl-badge {
  font-size:     10px;
  padding:       2px 7px;
  border-radius: 3px;
  background:    var(--accent-bg);
  color:         var(--accent);
  border:        1px solid var(--accent-border);
  font-family:   var(--mono);
  transition:    var(--transition);
}

.tl-desc { font-size: 13.5px; color: var(--text2); line-height: 1.65; }

.tl-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 10px; }

.tl-tag {
  font-size:     11px;
  font-family:   var(--mono);
  padding:       2px 8px;
  border-radius: 3px;
  background:    var(--surface2);
  color:         var(--muted);
  border:        1px solid var(--border);
  transition:    var(--transition);
}


/* =========================================================
   EDUCATION
   ========================================================= */
.edu-card {
  background:    var(--surface);
  border:        1px solid var(--border);
  border-radius: 10px;
  padding:       1.5rem;
  display:       grid;
  grid-template-columns: 72px 1fr;
  gap:           1.25rem;
  align-items:   start;
  transition:    var(--transition);
}

.edu-logo {
  width:         72px;
  height:        72px;
  border-radius: 8px;
  border:        1px solid var(--border);
  background:    #fff;
  overflow:      hidden;
  display:       flex;
  align-items:   center;
  justify-content: center;
  transition:    var(--transition);
}

.edu-logo img { width: 100%; height: 100%; object-fit: contain; padding: 6px; }

.edu-degree { font-size: 15.5px; font-weight: 500; color: var(--text); margin-bottom: 3px; }
.edu-school  { font-size: 13.5px; color: var(--accent-light); margin-bottom: 10px; }

.edu-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }

.edu-pill {
  font-size:     11px;
  font-family:   var(--mono);
  padding:       3px 9px;
  border-radius: 4px;
  background:    var(--accent-bg);
  color:         var(--accent);
  border:        1px solid var(--accent-border);
  transition:    var(--transition);
}

.edu-desc { font-size: 13px; color: var(--muted); line-height: 1.65; margin-bottom: 10px; }

.edu-clubs { padding-top: 10px; border-top: 1px solid var(--border); display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text2); }
.edu-clubs span { font-family: var(--mono); font-size: 11px; color: var(--muted); }


/* =========================================================
   AWARDS
   ========================================================= */
.awards-list { display: flex; flex-direction: column; gap: 10px; }

.award-card {
  background:    var(--surface);
  border:        1px solid var(--border);
  border-radius: 8px;
  padding:       1rem 1.25rem;
  display:       flex;
  align-items:   center;
  justify-content: space-between;
  gap:           1rem;
  flex-wrap:     wrap;
  transition:    var(--transition);
}

.award-left  { display: flex; align-items: center; gap: 12px; }

.award-icon { width: 36px; height: 36px; border-radius: 7px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.award-icon.gold   { background: var(--gold-bg); border: 1px solid var(--gold-border); }
.award-icon.silver { background: var(--surface2); border: 1px solid var(--border2); }
.award-icon svg    { width: 18px; height: 18px; }

.award-name   { font-size: 14px; font-weight: 500; color: var(--text); margin-bottom: 2px; }
.award-issuer { font-size: 12px; color: var(--muted); font-family: var(--mono); }

.award-right { display: flex; flex-direction: column; align-items: flex-end; gap: 5px; }

.award-sem { font-size: 11px; padding: 2px 8px; border-radius: 3px; font-family: var(--mono); }
.award-sem.gold   { background: var(--gold-bg); color: var(--gold-text); border: 1px solid var(--gold-border); }
.award-sem.silver { background: var(--surface2); color: var(--muted); border: 1px solid var(--border); }


/* =========================================================
   PROJECTS
   ========================================================= */
.proj-grid { display: flex; flex-direction: column; gap: 12px; }

.proj-card {
  background:    var(--surface);
  border:        1px solid var(--border);
  border-radius: 10px;
  padding:       1.25rem 1.4rem;
  transition:    var(--transition);
}

.proj-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; margin-bottom: 8px; }

.proj-name { font-size: 14.5px; font-weight: 500; color: var(--text); }
.proj-date { font-family: var(--mono); font-size: 11px; color: var(--dim); white-space: nowrap; padding-top: 2px; }
.proj-desc { font-size: 13px; color: var(--text2); line-height: 1.7; margin-bottom: 10px; }

.proj-tags { display: flex; flex-wrap: wrap; gap: 5px; }

.proj-tag {
  font-size:     11px;
  font-family:   var(--mono);
  padding:       2px 8px;
  border-radius: 3px;
  background:    var(--accent-bg);
  color:         var(--accent);
  border:        1px solid var(--accent-border);
  transition:    var(--transition);
}


/* =========================================================
   CERTIFICATIONS
   ========================================================= */
.cert-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 10px; }

.cert-card {
  background:    var(--surface);
  border:        1px solid var(--border);
  border-radius: 8px;
  padding:       .9rem 1rem;
  display:       flex;
  flex-direction: column;
  gap:           8px;
  transition:    border-color 0.18s, var(--transition);
}

.cert-card:hover { border-color: var(--border2); }

.cert-top { display: flex; align-items: flex-start; gap: 9px; }

.cert-icon {
  width:         30px;
  height:        30px;
  border-radius: 6px;
  display:       flex;
  align-items:   center;
  justify-content: center;
  font-size:     10px;
  font-weight:   700;
  font-family:   var(--mono);
  flex-shrink:   0;
  border:        1px solid;
  margin-top:    1px;
}

.ci-ft { background: #fffbeb; color: #b45309; border-color: #fde68a; }
.ci-cs { background: #eff6ff; color: #1d4ed8; border-color: #bfdbfe; }
.ci-ms { background: #f0f9ff; color: #0369a1; border-color: #bae6fd; }
.ci-li { background: #f0f9ff; color: #0369a1; border-color: #bae6fd; }

/* Keep cert icon colours punchy in dark mode */
[data-theme="dark"] .ci-ft { background: rgba(251,191,36,0.12); color: #fbbf24; border-color: rgba(251,191,36,0.25); }
[data-theme="dark"] .ci-cs { background: rgba(96,165,250,0.12); color: #60a5fa; border-color: rgba(96,165,250,0.25); }
[data-theme="dark"] .ci-ms { background: rgba(56,189,248,0.12); color: #38bdf8; border-color: rgba(56,189,248,0.25); }
[data-theme="dark"] .ci-li { background: rgba(56,189,248,0.12); color: #38bdf8; border-color: rgba(56,189,248,0.25); }

.cert-name  { font-size: 12.5px; font-weight: 500; color: var(--text); line-height: 1.35; }
.cert-meta  { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 4px; }
.cert-dates { font-size: 11px; font-family: var(--mono); color: var(--muted); }
.cert-link  { font-size: 11px; color: var(--accent-light); font-family: var(--mono); }


/* =========================================================
   SKILLS
   ========================================================= */
.skills-section { display: flex; flex-direction: column; gap: 1.25rem; }

.skill-group-label { font-size: 11px; font-family: var(--mono); color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 9px; }

.skill-pills { display: flex; flex-wrap: wrap; gap: 7px; }

.skill-pill {
  font-size:     12px;
  padding:       5px 12px;
  border-radius: 5px;
  border:        1px solid var(--border);
  background:    var(--bg);
  color:         var(--text2);
  font-family:   var(--mono);
  transition:    var(--transition);
}

.skill-pill.hi { border-color: var(--accent-border); color: var(--accent); background: var(--accent-bg); }


/* =========================================================
   RESUME
   ========================================================= */
.resume-wrap {
  background:    var(--surface);
  border:        1px solid var(--border);
  border-radius: 12px;
  padding:       1.75rem 2rem;
  display:       flex;
  flex-wrap:     wrap;
  gap:           1.25rem;
  align-items:   center;
  justify-content: space-between;
  transition:    var(--transition);
}

.resume-text h3 { font-size: 15px; font-weight: 500; color: var(--text); margin-bottom: 4px; }
.resume-text p  { font-size: 13.5px; color: var(--muted); line-height: 1.55; max-width: 380px; }

.resume-btn {
  display:       inline-flex;
  align-items:   center;
  gap:           8px;
  font-size:     13px;
  padding:       10px 20px;
  border-radius: 6px;
  border:        1.5px solid var(--accent);
  color:         var(--accent);
  background:    var(--accent-bg);
  font-weight:   500;
  transition:    all 0.18s;
  white-space:   nowrap;
}

.resume-btn:hover { background: var(--accent); color: #fff; text-decoration: none; }
.resume-btn svg   { width: 15px; height: 15px; }


/* =========================================================
   CONTACT
   ========================================================= */
.contact-wrap {
  background:    var(--surface);
  border:        1px solid var(--border);
  border-radius: 12px;
  padding:       1.75rem 2rem;
  display:       flex;
  flex-wrap:     wrap;
  gap:           1.25rem;
  align-items:   center;
  justify-content: space-between;
  transition:    var(--transition);
}

.contact-intro { font-size: 15px; color: var(--text2); line-height: 1.6; max-width: 280px; }

.contact-links { display: flex; flex-wrap: wrap; gap: 8px; }

.contact-btn {
  display:       inline-flex;
  align-items:   center;
  gap:           7px;
  font-size:     13px;
  padding:       8px 14px;
  border-radius: 6px;
  border:        1px solid var(--border2);
  background:    var(--bg);
  color:         var(--text2);
  transition:    all 0.18s;
}

.contact-btn:hover { border-color: var(--accent-light); color: var(--accent); background: var(--accent-bg); text-decoration: none; }
.contact-btn svg   { width: 14px; height: 14px; flex-shrink: 0; color: var(--muted); }


/* =========================================================
   FOOTER
   ========================================================= */
footer {
  border-top:  1px solid var(--border);
  padding:     1.5rem 2rem;
  max-width:   760px;
  margin:      0 auto;
  display:     flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap:   wrap;
  gap:         8px;
  transition:  var(--transition);
}

footer p { font-size: 12px; font-family: var(--mono); color: var(--dim); }


/* =========================================================
   RESPONSIVE — content
   ========================================================= */
@media (max-width: 520px) {
  .about-grid   { grid-template-columns: 1fr; }
  .tl-item      { grid-template-columns: 1fr; }
  .tl-left      { flex-direction: row; align-items: center; }
  .edu-card     { grid-template-columns: 1fr; }
  .proj-header  { flex-direction: column; gap: 4px; }
  .hero         { padding: 3rem 1.25rem 2.5rem; }
  .wrap         { padding: 0 1.25rem; }
}