/* ═══════════════════════════════════════════
   Allan Mitanda Portfolio — style.css
   Theme: Corporate Professional / Light
   ═══════════════════════════════════════════ */

:root {
  --navy:       #1a2b47;
  --navy-dark:  #0f1e33;
  --navy-mid:   #243554;
  --blue:       #2563a8;
  --blue-light: #3b82c4;
  --gold:       #b8882a;
  --gold-light: #d4a63c;

  --white:      #ffffff;
  --offwhite:   #f7f8fa;
  --light:      #eef1f5;
  --border:     #dde2ea;
  --text:       #1e293b;
  --body:       #475569;
  --muted:      #94a3b8;

  --font-heading: 'Lora', Georgia, serif;
  --font-body:    'Mulish', sans-serif;

  --nav-h: 68px;
  --max-w: 1140px;
  --radius: 4px;
  --shadow: 0 1px 3px rgba(26,43,71,0.08), 0 4px 16px rgba(26,43,71,0.06);
  --shadow-md: 0 2px 8px rgba(26,43,71,0.1), 0 8px 32px rgba(26,43,71,0.08);
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--white);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── NAV ── */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  height: var(--nav-h);
  background: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 0 rgba(26,43,71,0.04);
  transition: box-shadow 0.3s;
}
#navbar.scrolled { box-shadow: var(--shadow); }
.nav-inner {
  max-width: var(--max-w); margin: 0 auto;
  height: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 0 2rem;
}
.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.15rem; font-weight: 700;
  color: var(--navy);
  letter-spacing: 0.01em;
}
.nav-links { display: flex; align-items: center; gap: 2rem; }
.nav-links a {
  font-size: 0.82rem; font-weight: 500;
  letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--body); transition: color 0.2s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--navy); }
.nav-cta {
  background: var(--navy) !important;
  color: var(--white) !important;
  padding: 0.45rem 1.2rem;
  font-size: 0.78rem !important;
  border-radius: var(--radius);
  transition: background 0.2s !important;
}
.nav-cta:hover { background: var(--navy-mid) !important; }
.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--navy); transition: all 0.25s; }

/* ── HERO ── */
#hero {
  min-height: 100vh;
  padding-top: var(--nav-h);
  background: linear-gradient(155deg, var(--white) 0%, var(--offwhite) 50%, var(--light) 100%);
  display: flex; align-items: center;
  border-bottom: 1px solid var(--border);
}
.hero-inner {
  max-width: var(--max-w); margin: 0 auto;
  padding: 5rem 2rem;
  display: grid; grid-template-columns: 1fr 420px;
  gap: 5rem; align-items: center;
  width: 100%;
}
.hero-eyebrow {
  font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--blue); margin-bottom: 1.2rem;
}
.hero-name {
  font-family: var(--font-heading);
  font-size: clamp(2.8rem, 5.5vw, 4.8rem);
  font-weight: 700; line-height: 1.05;
  color: var(--navy); margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
}
.hero-name span { color: var(--blue); }
.hero-desc {
  font-size: 1rem; color: var(--body);
  max-width: 520px; margin-bottom: 2.2rem; line-height: 1.85;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2rem; }
.btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.7rem 1.8rem;
  font-family: var(--font-body); font-size: 0.82rem;
  font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase;
  border-radius: var(--radius); border: 2px solid transparent;
  cursor: pointer; transition: all 0.2s;
}
.btn-primary { background: var(--navy); color: var(--white); border-color: var(--navy); }
.btn-primary:hover { background: var(--navy-mid); border-color: var(--navy-mid); }
.btn-outline { background: transparent; color: var(--navy); border-color: var(--navy); }
.btn-outline:hover { background: var(--navy); color: var(--white); }
.btn-white { background: var(--white); color: var(--navy); border-color: var(--white); }
.btn-white:hover { background: var(--offwhite); }
.btn-ghost-white { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.4); }
.btn-ghost-white:hover { border-color: var(--white); background: rgba(255,255,255,0.08); }

.hero-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.htag {
  font-size: 0.72rem; font-weight: 500;
  padding: 0.25rem 0.75rem;
  background: var(--white); border: 1px solid var(--border);
  color: var(--body); border-radius: 2px;
  box-shadow: 0 1px 2px rgba(26,43,71,0.05);
}

/* Hero right */
.hero-right { display: flex; flex-direction: column; gap: 1.5rem; }
.hero-photo-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}
.hero-photo {
  width: 100%; aspect-ratio: 4/5; object-fit: cover; object-position: top center;
  display: block;
}
.hero-photo-placeholder {
  width: 100%; aspect-ratio: 4/5;
  background: var(--light);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 0.8rem; color: var(--muted); font-size: 0.8rem;
}
.hero-stats {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1px;
  background: var(--border); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow);
}
.hstat {
  background: var(--white); padding: 1rem 1.2rem;
  transition: background 0.2s;
}
.hstat:hover { background: var(--offwhite); }
.hstat-n {
  display: block; font-family: var(--font-heading);
  font-size: 1.8rem; font-weight: 700; color: var(--navy); line-height: 1;
}
.hstat-l {
  display: block; font-size: 0.68rem; font-weight: 500;
  letter-spacing: 0.05em; text-transform: uppercase;
  color: var(--muted); margin-top: 0.2rem;
}

/* ── LAYOUT ── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 2rem; }
.section { padding: 6rem 0; }
.section-white { background: var(--white); }
.section-light { background: var(--offwhite); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-navy  { background: var(--navy); }

.section-label {
  font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--blue); margin-bottom: 0.6rem;
}
.light-label { color: rgba(255,255,255,0.55); }
.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.7rem, 3vw, 2.4rem); font-weight: 700;
  color: var(--navy); margin-bottom: 2.5rem; line-height: 1.2;
}

/* ── ABOUT ── */
.about-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 5rem; align-items: start; }
.about-bio p { color: var(--body); margin-bottom: 1rem; font-size: 0.95rem; }
.about-bio strong { color: var(--navy); font-weight: 600; }
.info-block {
  background: var(--offwhite); border: 1px solid var(--border);
  padding: 1.8rem; border-radius: var(--radius);
}
.info-title {
  font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--navy); margin-bottom: 1.2rem;
  padding-bottom: 0.8rem; border-bottom: 1px solid var(--border);
}
.info-row {
  display: flex; align-items: center; gap: 0.75rem;
  font-size: 0.82rem; color: var(--body);
  padding: 0.45rem 0; border-bottom: 1px solid var(--border);
}
.info-row:last-child { border-bottom: none; }
.info-row svg { color: var(--blue); flex-shrink: 0; }
.info-row a:hover { color: var(--blue); }

/* ── EXPERTISE ── */
.expertise-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-bottom: 3.5rem; }
.exp-panel {
  background: var(--white); border: 1px solid var(--border);
  padding: 2.5rem; border-radius: var(--radius);
  box-shadow: var(--shadow);
  border-top: 3px solid transparent;
  transition: box-shadow 0.2s;
}
.exp-panel:hover { box-shadow: var(--shadow-md); }
.qhse-panel { border-top-color: var(--navy); }
.dev-panel  { border-top-color: var(--blue); }
.exp-panel-icon { margin-bottom: 1.2rem; }
.qhse-panel .exp-panel-icon { color: var(--navy); }
.dev-panel  .exp-panel-icon { color: var(--blue); }
.exp-panel h3 {
  font-family: var(--font-heading); font-size: 1.2rem; font-weight: 700;
  color: var(--navy); margin-bottom: 0.8rem;
}
.exp-panel p { font-size: 0.88rem; color: var(--body); margin-bottom: 1.2rem; line-height: 1.8; }
.exp-panel ul { display: flex; flex-direction: column; gap: 0.4rem; }
.exp-panel li {
  font-size: 0.82rem; color: var(--body);
  padding-left: 1.1rem; position: relative;
}
.qhse-panel li::before { content: ''; position: absolute; left: 0; top: 0.6rem; width: 5px; height: 1.5px; background: var(--navy); }
.dev-panel  li::before { content: ''; position: absolute; left: 0; top: 0.6rem; width: 5px; height: 1.5px; background: var(--blue); }

/* Skills */
.skills-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; }
.skills-heading {
  font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.qhse-heading { color: var(--navy); }
.dev-heading  { color: var(--blue); }
.skill-row { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; }
.skill-label { font-size: 0.82rem; color: var(--body); width: 210px; flex-shrink: 0; }
.skill-track { flex: 1; height: 3px; background: var(--border); border-radius: 2px; }
.skill-fill { height: 100%; width: 0; border-radius: 2px; transition: width 1.2s cubic-bezier(0.16,1,0.3,1); }
.qfill { background: var(--navy); }
.dfill { background: var(--blue); }

/* ── TIMELINE ── */
.timeline { display: flex; flex-direction: column; gap: 0; }
.tl-item {
  display: grid; grid-template-columns: 200px 32px 1fr;
  gap: 0 1rem; padding-bottom: 2.5rem;
}
.tl-item:last-child { padding-bottom: 0; }
.tl-left { text-align: right; padding-top: 0.2rem; }
.tl-date {
  display: block; font-size: 0.75rem; font-weight: 600;
  color: var(--blue); letter-spacing: 0.04em; margin-bottom: 0.4rem;
}
.tl-tag {
  display: inline-block; font-size: 0.62rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.15rem 0.6rem; border-radius: 2px;
}
.tag-qhse { background: rgba(26,43,71,0.08); color: var(--navy); }
.tag-dev  { background: rgba(37,99,168,0.1); color: var(--blue); }
.tag-both { background: rgba(184,136,42,0.12); color: var(--gold); }
.tag-other { background: var(--light); color: var(--muted); }

.tl-connector {
  display: flex; flex-direction: column; align-items: center;
  position: relative;
}
.tl-connector::after {
  content: ''; position: absolute; top: 10px; bottom: -2.5rem;
  left: 50%; transform: translateX(-50%);
  width: 1px; background: var(--border);
}
.tl-item:last-child .tl-connector::after { display: none; }
.tl-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--white); border: 2px solid var(--navy);
  position: relative; z-index: 1; margin-top: 0.2rem;
}

.tl-right { padding-top: 0; }
.tl-role { font-family: var(--font-heading); font-size: 1.15rem; font-weight: 700; color: var(--navy); margin-bottom: 0.2rem; }
.tl-org  { font-size: 0.78rem; color: var(--muted); font-weight: 500; margin-bottom: 0.9rem; }
.tl-list { display: flex; flex-direction: column; gap: 0.4rem; }
.tl-list li { font-size: 0.85rem; color: var(--body); padding-left: 1.1rem; position: relative; line-height: 1.7; }
.tl-list li::before { content: ''; position: absolute; left: 0; top: 0.65rem; width: 4px; height: 4px; border-radius: 50%; background: var(--blue); }

/* ── PROJECTS ── */
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.proj-card {
  background: var(--white); border: 1px solid var(--border);
  padding: 1.8rem; border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: flex; flex-direction: column;
  transition: box-shadow 0.2s, transform 0.2s;
  cursor: pointer;
}
.proj-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.proj-lang {
  font-size: 0.65rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  padding: 0.2rem 0.65rem; width: fit-content;
  border-radius: 2px; margin-bottom: 0.9rem;
}
.proj-lang.cpp { background: rgba(178,100,55,0.1); color: #b05a1a; }
.proj-lang.py  { background: rgba(37,99,168,0.1); color: var(--blue); }
.proj-lang.js  { background: rgba(200,160,0,0.1); color: #a07800; }
.proj-lang.web { background: rgba(26,43,71,0.08); color: var(--navy); }
.proj-card h3 { font-family: var(--font-heading); font-size: 1rem; font-weight: 700; color: var(--navy); margin-bottom: 0.5rem; }
.proj-card p  { font-size: 0.82rem; color: var(--body); line-height: 1.75; flex: 1; margin-bottom: 1.2rem; }
.proj-link { font-size: 0.75rem; font-weight: 600; color: var(--blue); letter-spacing: 0.04em; margin-top: auto; }
.proj-card:hover .proj-link { text-decoration: underline; }

/* ── CREDENTIALS ── */
.creds-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 5rem; }
.creds-sub {
  font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--navy); margin-bottom: 1.5rem;
  padding-bottom: 0.7rem; border-bottom: 2px solid var(--navy);
}
.cert-list { display: flex; flex-direction: column; gap: 1px; }
.cert-row {
  display: flex; align-items: flex-start; gap: 0.9rem;
  padding: 0.9rem 1rem; background: var(--offwhite);
  border: 1px solid var(--border); border-left: 3px solid transparent;
  transition: border-left-color 0.2s;
}
.cert-row:hover { border-left-color: var(--navy); }
.cert-icon { color: var(--navy); flex-shrink: 0; margin-top: 0.1rem; }
.cert-name { font-size: 0.85rem; font-weight: 600; color: var(--navy); }
.cert-by   { font-size: 0.72rem; color: var(--muted); margin-top: 0.15rem; }

.edu-list { display: flex; flex-direction: column; gap: 1px; }
.edu-row {
  padding: 1.2rem 1rem; background: var(--offwhite);
  border: 1px solid var(--border); border-left: 3px solid transparent;
  transition: border-left-color 0.2s;
}
.edu-row:hover { border-left-color: var(--blue); }
.edu-degree { font-size: 0.9rem; font-weight: 700; color: var(--navy); }
.edu-school { font-size: 0.78rem; color: var(--body); margin-top: 0.15rem; }
.edu-meta   { font-size: 0.72rem; color: var(--muted); margin-top: 0.2rem; }

/* ── CONTACT ── */
.contact-inner {
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 5rem; align-items: start;
}
.contact-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 700;
  color: var(--white); margin-bottom: 1rem; line-height: 1.15;
}
.contact-sub { font-size: 0.9rem; color: rgba(255,255,255,0.65); margin-bottom: 2rem; line-height: 1.85; max-width: 420px; }
.contact-btns { display: flex; gap: 1rem; flex-wrap: wrap; }

.ref-title {
  font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: rgba(255,255,255,0.5); margin-bottom: 1.2rem;
}
.ref-card {
  padding: 1.2rem 0; border-bottom: 1px solid rgba(255,255,255,0.1);
}
.ref-card:last-child { border-bottom: none; }
.ref-name    { font-size: 0.9rem; font-weight: 600; color: var(--white); }
.ref-role    { font-size: 0.78rem; color: rgba(255,255,255,0.55); margin-top: 0.15rem; }
.ref-contact { font-size: 0.75rem; color: rgba(255,255,255,0.4); margin-top: 0.2rem; }

/* ── FOOTER ── */
footer {
  background: var(--navy-dark);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 1.5rem 0;
}
.footer-inner {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.75rem; color: rgba(255,255,255,0.3);
}

/* ── ANIMATIONS ── */
.fade-up { opacity: 0; transform: translateY(18px); transition: opacity 0.55s ease, transform 0.55s ease; }
.fade-up.visible { opacity: 1; transform: none; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .projects-grid { grid-template-columns: 1fr 1fr; }
  .creds-grid { grid-template-columns: 1fr; gap: 3rem; }
}
@media (max-width: 860px) {
  .nav-links { display: none; position: absolute; top: var(--nav-h); left: 0; right: 0; flex-direction: column; background: var(--white); padding: 1.5rem 2rem; gap: 1rem; border-bottom: 1px solid var(--border); box-shadow: var(--shadow); }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }

  .hero-inner { grid-template-columns: 1fr; gap: 3rem; }
  .hero-right { order: -1; }
  .hero-photo-wrap { max-width: 260px; margin: 0 auto; }
  .hero-stats { max-width: 360px; margin: 0 auto; }

  .about-grid,
  .expertise-grid,
  .skills-wrap,
  .contact-inner { grid-template-columns: 1fr; gap: 2rem; }

  .tl-item { grid-template-columns: 1fr; gap: 0.5rem; }
  .tl-left { text-align: left; display: flex; gap: 1rem; align-items: center; }
  .tl-connector { display: none; }

  .projects-grid { grid-template-columns: 1fr; }
  .container { padding: 0 1.2rem; }
  .section { padding: 4rem 0; }
}