/* =========================================
   markintux portfolio — style.css
   Theme: Terminal / Hacker / Monospace
   ========================================= */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600;700&display=swap');

/* --- Variables --- */
:root {
  --bg:      #080b0f;
  --bg2:     #0d1117;
  --bg3:     #111820;
  --border:  #1e2d3d;
  --border2: #2a3f55;
  --text:    #c9d8e8;
  --muted:   #5a7a96;
  --dim:     #3a5068;
  --accent:  #4ec9b0;
  --accent2: #569cd6;
  --accent3: #dcdcaa;
  --err:     #f44747;
  --warn:    #ce9178;
  --ok:      #4ec9b0;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

::selection { background: #4ec9b033; color: var(--accent); }

/* --- Scanline overlay --- */
.scanline {
  pointer-events: none;
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 3px,
    rgba(0, 0, 0, 0.06) 3px,
    rgba(0, 0, 0, 0.06) 4px
  );
  z-index: 9999;
}

/* --- Header --- */
header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  background: rgba(8, 11, 15, 0.93);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: .85rem;
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: .02em;
}
.logo .prompt { color: var(--muted); }

#desktop-nav { display: flex; }
#desktop-nav a {
  font-size: .7rem;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: .1em;
  text-transform: uppercase;
  transition: color .15s;
  margin-left: 2rem;
}
#desktop-nav a:hover { color: var(--accent); }

.menu-btn {
  display: none;
  font-family: inherit;
  font-size: .7rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: .35rem .75rem;
  cursor: pointer;
}

#mobile-nav {
  display: none;
  flex-direction: column;
  gap: .75rem;
  padding: 1rem 2rem;
  border-top: 1px solid var(--border);
  background: var(--bg2);
}
#mobile-nav.open { display: flex; }
#mobile-nav a {
  font-size: .75rem;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: .1em;
  text-transform: uppercase;
}
#mobile-nav a:hover { color: var(--accent); }

/* --- Main container --- */
main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* --- Hero --- */
.hero-section {
  padding-top: 120px;
  padding-bottom: 72px;
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 3.5rem;
  align-items: start;
  border-top: none !important;
}

.hero-label {
  font-size: .65rem;
  color: var(--muted);
  letter-spacing: .2em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.hero-label::before {
  content: '';
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  animation: blink 1.4s step-end infinite;
}

@keyframes blink { 50% { opacity: 0; } }

h1 {
  font-size: clamp(1.8rem, 3.5vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  color: #e8eef4;
  letter-spacing: -.02em;
  margin-bottom: 1.25rem;
}
h1 .hl  { color: var(--accent); }
h1 .hl2 { color: var(--accent2); }

.hero-desc {
  font-size: .78rem;
  color: var(--muted);
  max-width: 500px;
  line-height: 1.9;
  margin-bottom: 1.75rem;
}
.hero-desc .company { color: var(--text); font-weight: 500; }

.hero-btns { display: flex; gap: .6rem; flex-wrap: wrap; margin-bottom: 1.5rem; }

.btn-primary {
  font-family: inherit;
  font-size: .7rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: .5rem 1.1rem;
  text-decoration: none;
  transition: background .15s, color .15s;
  cursor: pointer;
}
.btn-primary:hover { background: var(--accent); color: var(--bg); }

.btn-ghost {
  font-family: inherit;
  font-size: .7rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  background: transparent;
  border: 1px solid var(--border2);
  color: var(--muted);
  padding: .5rem 1.1rem;
  text-decoration: none;
  transition: border-color .15s, color .15s;
  cursor: pointer;
}
.btn-ghost:hover { border-color: var(--muted); color: var(--text); }

.social-links { display: flex; flex-wrap: wrap; gap: .4rem; }
.social-link {
  font-size: .65rem;
  color: var(--dim);
  text-decoration: none;
  letter-spacing: .08em;
  text-transform: uppercase;
  border: 1px solid var(--border);
  padding: .28rem .65rem;
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  transition: border-color .15s, color .15s;
}
.social-link i { font-size: .65rem; }
.social-link:hover { border-color: var(--accent2); color: var(--accent2); }

/* --- Terminal --- */
.terminal {
  background: var(--bg2);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  height: 440px;
}

.t-bar {
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
  padding: .45rem .75rem;
  display: flex;
  align-items: center;
  gap: .4rem;
  flex-shrink: 0;
}
.dot { width: 8px; height: 8px; border-radius: 50%; }
.dot-r { background: #ff5f57; }
.dot-y { background: #febc2e; }
.dot-g { background: #28c840; }
.t-title { font-size: .6rem; color: var(--muted); margin-left: .4rem; }

.t-output {
  flex: 1;
  overflow-y: auto;
  padding: .85rem 1rem;
  font-size: .7rem;
  line-height: 1.85;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.t-output::-webkit-scrollbar { width: 4px; }
.t-output::-webkit-scrollbar-thumb { background: var(--border); }

.t-hint {
  font-size: .58rem;
  color: var(--dim);
  padding: .3rem 1rem;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.t-input-row {
  display: flex;
  align-items: center;
  gap: .4rem;
  padding: .6rem 1rem;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}
.t-prompt-sym { color: var(--accent); font-size: .7rem; white-space: nowrap; }
.t-input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-family: inherit;
  font-size: .7rem;
  flex: 1;
  caret-color: var(--accent);
}

/* Terminal output color helpers */
.c-acc  { color: var(--accent); }
.c-acc2 { color: var(--accent2); }
.c-acc3 { color: var(--accent3); }
.c-mut  { color: var(--muted); }
.c-str  { color: var(--warn); }
.c-err  { color: var(--err); }
.c-txt  { color: var(--text); }
.c-dim  { color: var(--dim); }
.c-ok   { color: var(--ok); }
.cmd-echo { color: var(--dim); }
.t-sep  { display: block; color: var(--border2); }
.t-tag  {
  font-size: .58rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: .05rem .35rem;
  display: inline-block;
  margin-right: .3rem;
}
.t-tag.prop { border-color: var(--accent3); color: var(--accent3); }

/* --- Sections --- */
section {
  border-top: 1px solid var(--border);
  padding: 60px 0;
}

.section-header {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 2.25rem;
}
.section-num { font-size: .63rem; color: var(--border2); letter-spacing: .1em; }

h2 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #e8eef4;
  letter-spacing: -.01em;
}

.section-sub {
  font-size: .73rem;
  color: var(--muted);
  margin-bottom: 1.75rem;
  max-width: 540px;
  line-height: 1.8;
}

/* --- About --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
}
.about-sticky { position: sticky; top: 80px; }
.about-heading {
  font-size: 1.55rem;
  font-weight: 700;
  line-height: 1.25;
  color: #e8eef4;
  letter-spacing: -.02em;
}
.about-heading span { color: var(--accent); }
.about-p {
  font-size: .78rem;
  color: var(--muted);
  line-height: 1.95;
  margin-bottom: 1.1rem;
}
.company-inline {
  color: var(--text);
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid var(--border2);
  transition: border-color .15s, color .15s;
}
.company-inline:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.footer-link {
  color: var(--muted);
  text-decoration: none;
  transition: color .15s;
}
.footer-link:hover {
  color: var(--accent);
}

.stat-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}
.stat-num {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
}
.stat-core {
  font-size: 1rem;
  color: var(--accent2);
}
.stat-lbl {
  font-size: .6rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-top: .2rem;
}

/* --- Cards --- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 1px;
  border: 1px solid var(--border);
}

.card {
  background: var(--bg2);
  padding: 1.4rem;
  text-decoration: none;
  display: block;
  transition: background .15s;
  position: relative;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.card:hover { background: var(--bg3); }
.card:hover::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--accent);
}
.card-tag {
  font-size: .58rem;
  text-transform: uppercase;
  letter-spacing: .15em;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: .12rem .4rem;
  display: inline-block;
  margin-bottom: .85rem;
}
.card-tag.prop { color: var(--accent3); border-color: var(--accent3); }
.card h3 {
  font-size: .88rem;
  font-weight: 600;
  color: #e8eef4;
  margin-bottom: .45rem;
}
.card p {
  font-size: .7rem;
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: .65rem;
}
.card-stack {
  font-size: .6rem;
  color: var(--dim);
  letter-spacing: .05em;
  text-transform: uppercase;
}

/* --- Testimonials --- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1px;
  border: 1px solid var(--border);
}
.testimonial-card {
  background: var(--bg2);
  padding: 1.75rem;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.5rem;
}
.testimonial-text {
  font-size: .75rem;
  color: var(--muted);
  line-height: 1.9;
  font-style: italic;
}
.testimonial-text::before {
  content: '';
  display: block;
  width: 2px;
  height: 1.5rem;
  background: var(--accent);
  margin-bottom: 1rem;
}
.testimonial-author {
  display: flex;
  flex-direction: column;
  gap: .2rem;
}
.testimonial-name {
  font-size: .75rem;
  font-weight: 600;
  color: var(--text);
}
.testimonial-role {
  font-size: .65rem;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: .1em;
}

/* --- Stack --- */
.stack-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
}
.stack-category {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  border-bottom: 1px solid var(--border);
}
.stack-category:last-child {
  border-bottom: none;
}
.stack-label {
  font-size: .58rem;
  text-transform: uppercase;
  letter-spacing: .15em;
  color: var(--dim);
  padding: .55rem 1rem;
  min-width: 140px;
  border-right: 1px solid var(--border);
}
.stack-item {
  font-size: .68rem;
  color: var(--muted);
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .55rem .95rem;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: color .12s, background .12s;
  cursor: default;
}
.stack-item:hover { color: var(--accent); background: var(--bg2); }
.stack-item.core { color: var(--accent2); }

/* --- Status dot & hero-status --- */
.hero-status {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .65rem;
  color: var(--muted);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}
.status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  animation: blink 2.5s ease-in-out infinite;
  flex-shrink: 0;
}
.status-sep {
  color: var(--border2);
}
.status-eu {
  color: var(--accent2);
}
.status-eu-flag {
  font-style: normal;
}
.contact-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  font-size: .65rem;
  color: var(--muted);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 2.25rem;
  margin-top: -.75rem;
}

/* --- CTA --- */
.cta-primary {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-family: inherit;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  text-decoration: none;
  background: var(--accent);
  color: var(--bg);
  border: 1px solid var(--accent);
  padding: .85rem 2rem;
  margin: 1.5rem 0 1rem;
  transition: background .15s, color .15s, border-color .15s;
}
.cta-primary:hover {
  background: transparent;
  color: var(--accent);
}
.cta-primary i {
  font-size: .85rem;
}
.cta-note {
  font-size: .65rem;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: .12em;
  margin-bottom: 1.75rem;
}

/* --- Contact --- */
.contact-center { text-align: center; }
.contact-label {
  font-size: .63rem;
  color: var(--muted);
  letter-spacing: .2em;
  text-transform: uppercase;
  margin-bottom: .85rem;
}
.contact-heading {
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  font-weight: 700;
  color: #e8eef4;
  letter-spacing: -.02em;
  margin-bottom: .65rem;
}
.contact-heading .hl { color: var(--accent); }
.contact-sub {
  font-size: .73rem;
  color: var(--muted);
  margin-bottom: 2.25rem;
}
.contact-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1px;
  border: 1px solid var(--border);
  max-width: 620px;
  margin: 0 auto;
}
.contact-link {
  flex: 1;
  min-width: 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .45rem;
  padding: 1.4rem 1rem;
  background: var(--bg2);
  text-decoration: none;
  border-right: 1px solid var(--border);
  transition: background .15s;
}
.contact-link:hover { background: var(--bg3); }
.contact-link i { font-size: .95rem; color: var(--accent2); }
.contact-link span {
  font-size: .58rem;
  text-transform: uppercase;
  letter-spacing: .15em;
  color: var(--muted);
}

/* --- Footer --- */
footer {
  border-top: 1px solid var(--border);
  padding: 1.75rem 2rem;
  text-align: center;
}
.footer-txt {
  font-size: .62rem;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: .18em;
}
.footer-txt span { color: var(--muted); }

/* --- Responsive --- */
@media (max-width: 900px) {
  .hero-section { grid-template-columns: 1fr; }
  .terminal { height: 380px; }
  .about-grid { grid-template-columns: 1fr; }
  .about-sticky { position: static; }
  .stat-row { grid-template-columns: 1fr 1fr; }
  #desktop-nav { display: none; }
  .menu-btn { display: block; }
}

@media (max-width: 480px) {
  main { padding: 0 1rem; }
  .header-inner { padding: 0 1rem; }
  .hero-section { padding-top: 100px; padding-bottom: 48px; }
  h1 { font-size: 1.6rem; }
  .stat-row { grid-template-columns: 1fr; }
}