/* ============================================================
   BARTŁOMIEJ SZALA · CV SITE
   Theme: Dark Terminal / DevOps / Big Tech
   ============================================================ */

:root {
  --bg:        #0d1117;
  --bg2:       #161b22;
  --bg3:       #21262d;
  --border:    #30363d;
  --green:     #39d353;
  --cyan:      #58a6ff;
  --purple:    #bc8cff;
  --orange:    #f78166;
  --yellow:    #e3b341;
  --text:      #e6edf3;
  --text-muted:#8b949e;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-sans: 'Inter', system-ui, sans-serif;
  --radius:    8px;
  --radius-lg: 16px;
  --shadow:    0 8px 32px rgba(0,0,0,.5);
  --glow-green: 0 0 20px rgba(57,211,83,.25);
  --glow-cyan:  0 0 20px rgba(88,166,255,.25);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ── Canvas BG ── */
#matrix-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: .06;
  pointer-events: none;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--green); }

/* ══════════════════════════════════════
   NAV
══════════════════════════════════════ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(13,17,23,.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background .3s;
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-mono);
  font-size: .9rem;
  white-space: nowrap;
}
.nav-logo .prompt { color: var(--green); }
.nav-logo .sep    { color: var(--text-muted); }
.nav-logo .path   { color: var(--cyan); }
.nav-logo .cursor-nav { color: var(--text-muted); margin-left: 4px; }

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--text-muted);
  text-decoration: none;
  letter-spacing: .05em;
  transition: color .2s;
}
.nav-links a::before { content: './'; color: var(--green); opacity: 0; transition: opacity .2s; }
.nav-links a:hover,
.nav-links a.active { color: var(--green); }
.nav-links a:hover::before,
.nav-links a.active::before { opacity: 1; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text-muted);
  border-radius: 2px;
  transition: all .3s;
}

@media (max-width: 700px) {
  .hamburger { display: flex; }
  .nav-links {
    position: absolute;
    top: 60px; left: 0; right: 0;
    flex-direction: column;
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.5rem;
    gap: 1rem;
    display: none;
  }
  .nav-links.open { display: flex; }
}

/* ══════════════════════════════════════
   HERO
══════════════════════════════════════ */
#hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 100px 1.5rem 60px;
}
.hero-content {
  max-width: 1100px;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

/* Terminal window */
.terminal-window {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow), var(--glow-green);
  font-family: var(--font-mono);
  font-size: .82rem;
}
.terminal-bar {
  background: var(--bg3);
  padding: .6rem 1rem;
  display: flex;
  align-items: center;
  gap: .5rem;
  border-bottom: 1px solid var(--border);
}
.dot {
  width: 12px; height: 12px;
  border-radius: 50%;
}
.dot.red    { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green  { background: #28c840; }
.terminal-title {
  flex: 1;
  text-align: center;
  font-size: .76rem;
  color: var(--text-muted);
}
.terminal-body {
  padding: 1.25rem 1.5rem;
  min-height: 260px;
  line-height: 1.8;
}
.terminal-line { color: var(--text-muted); margin-bottom: .3rem; }
.t-prompt { color: var(--green); }
.t-cmd    { color: var(--cyan); }
.terminal-output { color: var(--text); white-space: pre-wrap; word-break: break-word; }
.terminal-output .key   { color: var(--yellow); }
.terminal-output .val   { color: var(--cyan); }
.terminal-output .str   { color: var(--green); }
.terminal-output .brkt  { color: var(--purple); }
.t-cursor {
  color: var(--green);
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* Hero text */
.hero-greeting {
  font-family: var(--font-mono);
  font-size: .9rem;
  color: var(--green);
  margin-bottom: .5rem;
}
.hero-name {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1rem;
  letter-spacing: -.02em;
}
.hero-name .accent { color: var(--green); }
.hero-role {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.role-icon { color: var(--cyan); }
.hero-sub {
  font-size: .95rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  max-width: 420px;
}
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: 2rem;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .35rem .85rem;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: .8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  padding: .65rem 1.5rem;
  border-radius: var(--radius);
  font-size: .9rem;
  font-weight: 600;
  text-decoration: none;
  transition: all .2s;
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: var(--green);
  color: var(--bg);
}
.btn-primary:hover {
  background: #5af87b;
  box-shadow: var(--glow-green);
  transform: translateY(-2px);
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .4rem;
  font-size: .75rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}
.bounce {
  animation: bounceY 1.5s ease-in-out infinite;
}
@keyframes bounceY {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(5px); }
}

@media (max-width: 860px) {
  .hero-content { grid-template-columns: 1fr; }
  .terminal-window { display: none; }
}

/* ══════════════════════════════════════
   SECTIONS COMMON
══════════════════════════════════════ */
section { position: relative; z-index: 1; padding: 6rem 1.5rem; }
section:nth-child(even) { background: rgba(22,27,34,.5); }

.container {
  max-width: 1100px;
  margin: 0 auto;
}
.section-title {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  margin-bottom: 3rem;
  color: var(--text);
}
.section-title .hash { color: var(--green); margin-right: .25em; }

/* ══════════════════════════════════════
   ABOUT
══════════════════════════════════════ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}
.about-text p {
  margin-bottom: 1rem;
  color: var(--text-muted);
  font-size: .97rem;
}
.about-text p strong { color: var(--text); }

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.stat-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-align: center;
  transition: border-color .3s, box-shadow .3s;
}
.stat-card:hover {
  border-color: var(--green);
  box-shadow: var(--glow-green);
}
.stat-num {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--green);
  line-height: 1;
}
.stat-label {
  font-size: .8rem;
  color: var(--text-muted);
  margin-top: .4rem;
}

@media (max-width: 700px) {
  .about-grid { grid-template-columns: 1fr; }
}

/* ══════════════════════════════════════
   SKILLS
══════════════════════════════════════ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}
.skill-category {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: border-color .3s, transform .2s;
}
.skill-category:hover {
  border-color: var(--cyan);
  transform: translateY(-3px);
  box-shadow: var(--glow-cyan);
}
.skill-category h3 {
  font-size: .9rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.skill-category h3 i { color: var(--cyan); }
.skill-tags { display: flex; flex-wrap: wrap; gap: .5rem; }

.tag {
  padding: .25rem .7rem;
  border-radius: 20px;
  font-family: var(--font-mono);
  font-size: .75rem;
  border: 1px solid;
  transition: all .2s;
}
.tag:hover { transform: scale(1.05); }
.tag-core      { color: #f78166; border-color: rgba(247,129,102,.3); background: rgba(247,129,102,.08); }
.tag-auto      { color: #bc8cff; border-color: rgba(188,140,255,.3); background: rgba(188,140,255,.08); }
.tag-container { color: #58a6ff; border-color: rgba(88,166,255,.3); background: rgba(88,166,255,.08); }
.tag-monitor   { color: #39d353; border-color: rgba(57,211,83,.3);  background: rgba(57,211,83,.08);  }
.tag-cloud     { color: #e3b341; border-color: rgba(227,179,65,.3);  background: rgba(227,179,65,.08); }
.tag-patch     { color: #f78166; border-color: rgba(247,129,102,.3); background: rgba(247,129,102,.08);}
.tag-dev       { color: #bc8cff; border-color: rgba(188,140,255,.3); background: rgba(188,140,255,.08);}
.tag-svc       { color: #58a6ff; border-color: rgba(88,166,255,.3);  background: rgba(88,166,255,.08); }

/* ══════════════════════════════════════
   EXPERIENCE TIMELINE
══════════════════════════════════════ */
.timeline {
  position: relative;
  padding-left: 2rem;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--green), var(--cyan), var(--purple));
  border-radius: 1px;
}
.timeline-item {
  position: relative;
  margin-bottom: 2.5rem;
}
.timeline-dot {
  position: absolute;
  left: -2.45rem;
  top: 1.5rem;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--green);
  border: 2px solid var(--bg);
  box-shadow: 0 0 8px var(--green);
  transition: transform .2s;
}
.timeline-item:hover .timeline-dot { transform: scale(1.4); }

.timeline-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: border-color .3s, box-shadow .3s;
}
.timeline-card:hover {
  border-color: var(--green);
  box-shadow: 0 4px 24px rgba(57,211,83,.12);
}
.tc-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .75rem;
  margin-bottom: 1rem;
}
.tc-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}
.company {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-size: .85rem;
  color: var(--cyan);
  margin-top: .25rem;
}
.period {
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--text-muted);
  background: var(--bg3);
  padding: .3rem .75rem;
  border-radius: 20px;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: .4rem;
}
.tc-desc {
  font-size: .9rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.tc-list {
  list-style: none;
  margin-bottom: 1.25rem;
}
.tc-list li {
  padding: .3rem 0 .3rem 1.25rem;
  position: relative;
  font-size: .88rem;
  color: var(--text-muted);
}
.tc-list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--green);
}
.tc-list li strong { color: var(--text); }
.tc-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}
.tc-tags span {
  font-family: var(--font-mono);
  font-size: .72rem;
  padding: .2rem .6rem;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-muted);
}

/* ══════════════════════════════════════
   EDUCATION & CERTS
══════════════════════════════════════ */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}
.edu-card {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: border-color .3s, box-shadow .3s;
}
.edu-card:hover {
  border-color: var(--purple);
  box-shadow: 0 4px 24px rgba(188,140,255,.15);
}
.cert-card:hover {
  border-color: var(--orange);
  box-shadow: 0 4px 24px rgba(247,129,102,.15);
}
.edu-icon {
  font-size: 2rem;
  color: var(--purple);
  flex-shrink: 0;
  width: 48px;
  text-align: center;
}
.cert-card .edu-icon { color: var(--orange); }
.edu-info h3 { font-size: 1rem; font-weight: 700; margin-bottom: .35rem; }
.edu-school { font-size: .85rem; color: var(--cyan); margin-bottom: .35rem; }
.edu-period { font-family: var(--font-mono); font-size: .78rem; color: var(--text-muted); }
.cert-id {
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--text-muted);
  margin-bottom: .5rem;
}
.cert-link {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-size: .82rem;
  color: var(--orange);
  text-decoration: none;
  transition: color .2s;
}
.cert-link:hover { color: #ffaf99; text-decoration: underline; }

/* Languages */
.lang-section h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.lang-section h3 i { color: var(--cyan); }
.lang-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: .75rem;
  max-width: 500px;
}
.lang-flag { font-size: 1.5rem; }
.lang-info { display: flex; flex-direction: column; min-width: 80px; }
.lang-name  { font-weight: 600; font-size: .9rem; }
.lang-level { font-size: .78rem; color: var(--text-muted); font-family: var(--font-mono); }
.lang-bar {
  flex: 1;
  height: 6px;
  background: var(--bg3);
  border-radius: 3px;
  overflow: hidden;
}
.lang-fill {
  height: 100%;
  background: linear-gradient(to right, var(--green), var(--cyan));
  border-radius: 3px;
  transition: width 1.5s ease;
}

/* ══════════════════════════════════════
   CONTACT
══════════════════════════════════════ */
#contact { text-align: center; }
.contact-wrapper {
  max-width: 700px;
  margin: 0 auto;
}
.contact-text h3 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: .75rem;
}
.contact-text p {
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  font-size: .97rem;
}
.contact-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.contact-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  text-decoration: none;
  transition: border-color .3s, box-shadow .3s, transform .2s;
  text-align: left;
}
.contact-card:not(.no-link):hover {
  border-color: var(--cyan);
  box-shadow: var(--glow-cyan);
  transform: translateX(4px);
}
.contact-card i {
  font-size: 1.5rem;
  color: var(--cyan);
  width: 32px;
  text-align: center;
  flex-shrink: 0;
}
.contact-card div { display: flex; flex-direction: column; }
.cc-label { font-size: .75rem; color: var(--text-muted); font-family: var(--font-mono); text-transform: uppercase; }
.cc-value { font-size: .95rem; color: var(--text); margin-top: .1rem; }
.no-link  { cursor: default; }

/* ══════════════════════════════════════
   FOOTER
══════════════════════════════════════ */
footer {
  position: relative;
  z-index: 1;
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 1.5rem;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--text-muted);
}
.footer-copy i { color: var(--orange); }

/* ══════════════════════════════════════
   SCROLL-IN ANIMATIONS
══════════════════════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}