/* ============================================================
   carl.dev — Portfolio Stylesheet
   main.css
   ============================================================ */

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

:root {
  --bg:       #0b0b0f;
  --surface:  #111117;
  --surface2: #18181f;
  --border:   rgba(255,255,255,0.07);
  --border2:  rgba(255,255,255,0.14);
  --text:     #e8e6e0;
  --muted:    #7a786f;
  --accent:   #c8f060;
  --accent2:  #60d0f0;
  --accent3:  #f06090;
  --ff-head:  'Syne', sans-serif;
  --ff-mono:  'DM Mono', monospace;
  --ff-serif: 'Lora', serif;
  --transition: 0.2s ease;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--ff-mono);
  font-size: 15px;
  line-height: 1.7;
  overflow-x: hidden;
}

/* Noise overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  opacity: 0.025;
  pointer-events: none;
  z-index: 999;
}

/* ── Typography ───────────────────────────────────────────── */
h1 {
  font-family: var(--ff-head);
  font-size: clamp(3rem, 5vw, 5.5rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

h1 em {
  font-style: normal;
  color: transparent;
  -webkit-text-stroke: 1px var(--accent);
}

h2 {
  font-family: var(--ff-head);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

/* ── Navigation ───────────────────────────────────────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 2.5rem;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  background: rgba(11,11,15,0.85);
}

.nav-logo {
  font-family: var(--ff-head);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}

.nav-logo span { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color var(--transition);
}

.nav-links a:hover { color: var(--text); }

.nav-links a.nav-cta {
  background: var(--accent);
  color: #0b0b0f;
  padding: 0.5rem 1.2rem;
  border-radius: 2px;
  font-weight: 500;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border2);
  color: var(--text);
  padding: 0.4rem 0.85rem;
  cursor: pointer;
  border-radius: 2px;
  font-size: 1rem;
  line-height: 1;
}

/* ── Shared Section Styles ────────────────────────────────── */
section { padding: 6rem 2.5rem; }

.section-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.section-label::after {
  content: '';
  flex: 1;
  max-width: 60px;
  height: 1px;
  background: var(--accent);
  opacity: 0.4;
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn-primary {
  background: var(--accent);
  color: #0b0b0f;
  padding: 0.85rem 2rem;
  border-radius: 2px;
  text-decoration: none;
  font-family: var(--ff-head);
  font-weight: 700;
  font-size: 0.9rem;
  display: inline-block;
  transition: opacity var(--transition), transform var(--transition);
}

.btn-primary:hover { opacity: 0.88; transform: translateY(-1px); }

.btn-ghost {
  border: 1px solid var(--border2);
  color: var(--text);
  padding: 0.85rem 2rem;
  border-radius: 2px;
  text-decoration: none;
  font-family: var(--ff-head);
  font-weight: 700;
  font-size: 0.9rem;
  display: inline-block;
  transition: border-color var(--transition), background var(--transition);
}

.btn-ghost:hover {
  border-color: var(--accent);
  background: rgba(200,240,96,0.05);
}

/* ── Hero ─────────────────────────────────────────────────── */
#hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding: 0 2.5rem;
  padding-top: 5rem;
  position: relative;
  overflow: hidden;
  align-items: center;
  gap: 4rem;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 30%, transparent 100%);
  pointer-events: none;
}

.hero-orb {
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200,240,96,0.08) 0%, transparent 70%);
  top: -100px; right: -100px;
  pointer-events: none;
}

.hero-left { position: relative; z-index: 1; }

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.hero-tag::before {
  content: '';
  display: inline-block;
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.hero-desc {
  color: var(--muted);
  max-width: 480px;
  line-height: 1.8;
  margin-bottom: 2.5rem;
}

.hero-desc strong { color: var(--text); font-weight: 500; }

.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero-right {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ── Terminal Widget ──────────────────────────────────────── */
.terminal {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 6px;
  overflow: hidden;
  animation: float 6s ease-in-out infinite;
}

.terminal-bar {
  background: var(--surface2);
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-r { background: #f06090; }
.dot-y { background: #f0c060; }
.dot-g { background: #60d060; }

.terminal-bar-title {
  margin: 0 auto;
  font-size: 0.72rem;
  color: var(--muted);
}

.terminal-body {
  padding: 1.2rem 1.5rem;
  font-size: 0.8rem;
  line-height: 2;
}

.t-line   { display: flex; gap: 0.75rem; }
.t-prompt { color: var(--accent); user-select: none; }
.t-cmd    { color: var(--text); }
.t-output { color: var(--muted); padding-left: 1.25rem; }
.t-hl     { color: var(--accent2); }
.t-hl2   { color: var(--accent); }

.cursor {
  color: var(--accent);
  animation: blink 1s step-end infinite;
}

/* ── Stat Cards ───────────────────────────────────────────── */
.stat-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.25rem 1.5rem;
  transition: border-color var(--transition);
}

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

.stat-num {
  font-family: var(--ff-head);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.3rem;
}

.stat-label {
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ── About ────────────────────────────────────────────────── */
#about {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 6rem;
  border-top: 1px solid var(--border);
  align-items: center;
}

.about-portrait { position: relative; }

.portrait-box {
  width: 100%;
  aspect-ratio: 3/4;
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.portrait-box::before {
  content: 'CARL';
  font-family: var(--ff-head);
  font-size: 6rem;
  font-weight: 800;
  color: rgba(200,240,96,0.1);
}

.portrait-accent {
  position: absolute;
  bottom: -1rem; right: -1rem;
  width: 100px; height: 100px;
  border: 2px solid var(--accent);
  border-radius: 4px;
  z-index: -1;
}

.about-text p {
  color: var(--muted);
  margin-bottom: 1.2rem;
  line-height: 1.9;
}

.about-text p strong { color: var(--text); font-weight: 500; }
.about-text p em { font-family: var(--ff-serif); font-style: italic; color: var(--accent2); }

.tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.5rem; }

.tag {
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--border2);
  border-radius: 2px;
  color: var(--muted);
  transition: all var(--transition);
  cursor: default;
}

.tag:hover       { border-color: var(--accent); color: var(--accent); }
.tag.hl          { border-color: rgba(200,240,96,0.4); color: var(--accent); background: rgba(200,240,96,0.05); }

/* ── Projects ─────────────────────────────────────────────── */
#projects { border-top: 1px solid var(--border); }

.projects-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 3rem;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5px;
  background: var(--border);
  border: 1px solid var(--border);
}

.project-card {
  background: var(--bg);
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
  transition: background 0.3s;
  cursor: pointer;
  text-decoration: none;
  display: block;
  color: inherit;
}

.project-card:hover { background: var(--surface); }

.project-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.project-card:hover::after { transform: scaleX(1); }

.project-num {
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.15em;
  margin-bottom: 1.5rem;
}

.project-icon {
  font-size: 1.8rem;
  margin-bottom: 1.2rem;
  display: block;
}

.project-card h3 {
  font-family: var(--ff-head);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  line-height: 1.2;
}

.project-card p {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.project-stack  { display: flex; flex-wrap: wrap; gap: 0.4rem; }

.stack-pill {
  font-size: 0.68rem;
  padding: 0.2rem 0.6rem;
  background: var(--surface2);
  border-radius: 2px;
  color: var(--muted);
  letter-spacing: 0.05em;
}

.project-arrow {
  position: absolute;
  top: 2.5rem; right: 2.5rem;
  font-size: 1.2rem;
  color: var(--muted);
  transition: color var(--transition), transform var(--transition);
}

.project-card:hover .project-arrow {
  color: var(--accent);
  transform: translate(3px, -3px);
}

/* ── Skills ───────────────────────────────────────────────── */
#skills { border-top: 1px solid var(--border); }

.skills-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-top: 3rem;
}

.skill-group-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent2);
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.skill-group-label + .skill-group-label,
.skill-spacer { margin-top: 2rem; }

.skill-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
}

.skill-name { font-size: 0.85rem; color: var(--text); }

.skill-bar-wrap {
  width: 120px; height: 3px;
  background: var(--surface2);
  border-radius: 2px;
  overflow: hidden;
}

.skill-bar {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1s ease;
}

.skill-bar.cyan { background: var(--accent2); }
.skill-bar.pink { background: var(--accent3); }
.skill-bar.animated { transform: scaleX(1); }

/* ── Experience ───────────────────────────────────────────── */
#experience { border-top: 1px solid var(--border); }

.exp-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 5rem;
  margin-top: 3rem;
}

.exp-nav { position: sticky; top: 6rem; align-self: start; }

.exp-nav-item {
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: all var(--transition);
  border-left: 2px solid transparent;
}

.exp-nav-item:hover .exp-nav-company { color: var(--accent); }

.exp-nav-item.active {
  border-left-color: var(--accent);
  padding-left: 1rem;
}

.exp-nav-item.active .exp-nav-company { color: var(--accent); }

.exp-nav-company {
  font-family: var(--ff-head);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--muted);
  transition: color var(--transition);
  margin-bottom: 0.2rem;
}

.exp-nav-period {
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.05em;
}

.exp-entry { display: none; }
.exp-entry.active { display: block; }

.exp-role {
  font-family: var(--ff-head);
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 0.3rem;
}

.exp-company-name {
  color: var(--accent);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.exp-duties { list-style: none; }

.exp-duties li {
  padding: 0.6rem 0 0.6rem 1.5rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--muted);
  position: relative;
  line-height: 1.7;
}

.exp-duties li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.75rem;
}

/* ── Contact ──────────────────────────────────────────────── */
#contact {
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 8rem 2.5rem;
}

#contact h2 {
  font-size: clamp(3rem, 6vw, 6rem);
  margin-bottom: 1.5rem;
}

#contact h2 em {
  font-style: italic;
  font-family: var(--ff-serif);
  color: var(--accent);
  font-weight: 400;
}

.contact-desc {
  color: var(--muted);
  max-width: 460px;
  margin: 0 auto 3rem;
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}

.contact-link:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ── Footer ───────────────────────────────────────────────── */
footer {
  padding: 1.5rem 2.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--muted);
}

/* ── Scroll Reveal ────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible { opacity: 1; transform: none; }

/* ── Animations ───────────────────────────────────────────── */
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.4; transform: scale(0.7); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .project-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  nav { padding: 1rem 1.5rem; }

  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 2rem 2rem;
    gap: 1.25rem;
  }

  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }

  #hero {
    grid-template-columns: 1fr;
    padding-top: 7rem;
    min-height: auto;
    padding-bottom: 4rem;
  }

  .hero-right { display: none; }

  #about {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .about-portrait { max-width: 260px; }

  .project-grid { grid-template-columns: 1fr; }

  .skills-layout { grid-template-columns: 1fr; gap: 2rem; }

  .exp-layout { grid-template-columns: 1fr; gap: 2rem; }
  .exp-nav { position: static; display: flex; flex-wrap: wrap; gap: 0.5rem; }
  .exp-nav-item { padding: 0.6rem 1rem; border: 1px solid var(--border2); border-left: 2px solid transparent; border-radius: 2px; }
  .exp-nav-item.active { border-left-color: var(--accent); }
  .exp-nav-period { display: none; }

  section { padding: 4rem 1.5rem; }

  #contact { padding: 5rem 1.5rem; }

  footer { flex-direction: column; gap: 0.5rem; text-align: center; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .btn-primary, .btn-ghost { text-align: center; }
  .contact-links { flex-direction: column; align-items: center; }
}