/* ============================================================
   SERJAN.NL — Retro Terminal Theme
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=VT323&family=Share+Tech+Mono&display=swap');

/* ---- Custom properties ---- */
:root {
  --bg:        #050c05;
  --bg2:       #080f08;
  --bg3:       #0c160c;
  --green:     #39ff14;
  --green-dim: #1a7a00;
  --green-lo:  rgba(57,255,20,0.08);
  --amber:     #ffb000;
  --white:     #d0ffd0;
  --text:      #a8d8a8;
  --muted:     #4d7a4d;
  --border:    #1a3a1a;
  --font-h:    'VT323', monospace;
  --font-b:    'Share Tech Mono', 'Courier New', monospace;
  --glow:      0 0 8px var(--green), 0 0 20px rgba(57,255,20,0.4);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg);
  background-image:
    linear-gradient(rgba(57,255,20,0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57,255,20,0.018) 1px, transparent 1px);
  background-size: 32px 32px;
  color: var(--text);
  font-family: var(--font-b);
  line-height: 1.65;
  overflow-x: hidden;
}

/* ---- CRT Scanlines ---- */
.scanlines {
  position: fixed; inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent 0px, transparent 2px,
    rgba(0,0,0,0.045) 2px, rgba(0,0,0,0.045) 4px
  );
  pointer-events: none;
  z-index: 9998;
}

/* ---- CRT Vignette ---- */
.vignette {
  position: fixed; inset: 0;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(0,0,0,0.75) 100%);
  pointer-events: none;
  z-index: 9997;
}

/* ---- Scroll Progress ---- */
#scrollProgress {
  position: fixed;
  top: 54px; left: 0;
  height: 2px;
  width: 0%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  z-index: 9990;
  transition: width 0.1s linear;
}

/* ---- Type ---- */
h1, h2, h3, h4 { font-family: var(--font-h); line-height: 1.1; letter-spacing: 0.04em; }
a { color: var(--green); text-decoration: none; transition: color 0.15s, text-shadow 0.15s; }
a:hover { color: #7fff6a; text-shadow: var(--glow); }
mark { background: none; color: var(--green); text-shadow: 0 0 8px var(--green); }

/* ---- Utils ---- */
.container { max-width: 1100px; margin: 0 auto; padding: 0 1.75rem; }
.h-full { height: 100%; }

.glow { text-shadow: var(--glow), 0 0 40px rgba(57,255,20,0.3); }

.cursor { color: var(--green); }
.blink { animation: blink 1s step-end infinite; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

.prompt-arrow { color: var(--green-dim); margin-right: 0.4em; }
.p { color: var(--green); margin-right: 0.5em; }
.out { padding-left: 1.4em; color: var(--text); }

/* ---- Reveal ---- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
  transition-delay: var(--d, 0s);
}
.reveal.visible { opacity: 1; transform: none; }

/* ===============================
   NAV
   =============================== */
#nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(5,12,5,0.94);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1100px; margin: 0 auto;
  padding: 0 1.75rem;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-h);
  font-size: 1.55rem;
  color: var(--green);
  text-shadow: 0 0 10px var(--green);
  letter-spacing: 0.1em;
}

.nav-links { display: flex; gap: 2rem; }
.nav-links a {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--muted);
  transition: color 0.2s, text-shadow 0.2s;
  position: relative;
}
.nav-links a::before { content: '> '; opacity: 0; transition: opacity 0.2s; }
.nav-links a:hover,
.nav-links a.active { color: var(--green); text-shadow: 0 0 8px var(--green); }
.nav-links a:hover::before,
.nav-links a.active::before { opacity: 1; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 1px solid var(--border);
  padding: 7px 10px;
  cursor: pointer;
}
.nav-toggle span {
  display: block; width: 20px; height: 1px;
  background: var(--green);
  transition: transform 0.2s, opacity 0.2s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ===============================
   HERO
   =============================== */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 100px 1.75rem 3rem;
  overflow: hidden;
}

#matrixCanvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  opacity: 0.1;
  display: block;
}

.hero-content {
  position: relative; z-index: 2;
  max-width: 860px;
}

.hero-pre {
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.12em;
  margin-bottom: 1rem;
  min-height: 1.2em;
}

/* Loader */
.hero-loader { margin-bottom: 1.8rem; }
.loader-bar-wrap {
  width: min(320px, 80vw);
  height: 14px;
  border: 1px solid var(--green-dim);
  background: var(--bg2);
  overflow: hidden;
  margin-bottom: 0.3rem;
}
.loader-bar {
  height: 100%; width: 0%;
  background: var(--green);
  box-shadow: 0 0 12px var(--green);
}
.loader-text { font-size: 0.72rem; color: var(--muted); letter-spacing: 0.1em; }

/* Name */
.hero-name {
  font-size: clamp(5rem, 16vw, 11rem);
  color: var(--green);
  line-height: 1;
  margin-bottom: 0.4rem;
  min-height: 1.1em;
}

/* Title line */
.hero-title {
  font-family: var(--font-h);
  font-size: clamp(1.3rem, 3vw, 2.2rem);
  color: var(--white);
  margin-bottom: 1.4rem;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.3em;
  min-height: 2em;
}

.hero-sub {
  font-size: 0.88rem;
  color: var(--muted);
  max-width: 480px;
  margin-bottom: 2rem;
  opacity: 0;
  transition: opacity 0.8s ease;
}
.hero-sub.show { opacity: 1; }

.hero-cta {
  display: flex; gap: 1rem; flex-wrap: wrap;
  opacity: 0; transition: opacity 0.8s ease;
}
.hero-cta.show { opacity: 1; }

/* ===============================
   BUTTONS
   =============================== */
.btn {
  display: inline-block;
  font-family: var(--font-b);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  padding: 0.55em 1.4em;
  cursor: pointer;
  border: none;
  transition: all 0.18s;
}
.btn-solid {
  background: var(--green);
  color: var(--bg);
  box-shadow: 0 0 16px rgba(57,255,20,0.25);
}
.btn-solid:hover {
  background: #7fff6a;
  box-shadow: 0 0 28px rgba(57,255,20,0.55);
  color: var(--bg);
  text-shadow: none;
}
.btn-ghost {
  background: transparent;
  color: var(--green);
  border: 1px solid var(--green);
}
.btn-ghost:hover {
  background: rgba(57,255,20,0.08);
  box-shadow: 0 0 16px rgba(57,255,20,0.2);
  text-shadow: 0 0 8px var(--green);
  color: var(--green);
}
.btn-sm { font-size: 0.72rem; padding: 0.3em 0.85em; }

/* ===============================
   SECTIONS
   =============================== */
section { padding: 6rem 0; }

#about, #skills { background: var(--bg2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.sec-header {
  display: flex; align-items: center; gap: 1rem;
  margin-bottom: 2.8rem;
}
.sec-num { font-size: 0.8rem; color: var(--muted); letter-spacing: 0.12em; white-space: nowrap; }
.sec-header h2 { font-size: clamp(2rem, 5vw, 3.2rem); color: var(--green); text-shadow: 0 0 12px rgba(57,255,20,0.35); white-space: nowrap; }
.sec-line { flex: 1; height: 1px; background: linear-gradient(to right, var(--border), transparent); }

/* ===============================
   TERMINAL BOX
   =============================== */
.terminal-box {
  border: 1px solid var(--border);
  background: var(--bg2);
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.terminal-box:hover { border-color: var(--green-dim); box-shadow: 0 0 24px rgba(57,255,20,0.07); }

.tb-bar {
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
  padding: 0.38rem 0.9rem;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.7rem; color: var(--muted); letter-spacing: 0.12em;
  flex-shrink: 0;
}
.tb-dots { font-size: 0.45rem; letter-spacing: 0.25em; color: var(--green-dim); }

.tb-body { padding: 1.1rem 1.3rem; font-size: 0.875rem; line-height: 1.75; flex: 1; }

/* ===============================
   ABOUT
   =============================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2.5rem;
  align-items: start;
}
.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 0.85rem; }
.stat {
  border: 1px solid var(--border);
  background: var(--bg3);
  padding: 1.1rem 0.8rem;
  text-align: center;
  min-width: 105px;
}
.stat-n { font-family: var(--font-h); font-size: 2.3rem; color: var(--green); text-shadow: 0 0 12px rgba(57,255,20,0.45); line-height: 1; }
.stat-l { font-size: 0.6rem; color: var(--muted); letter-spacing: 0.12em; margin-top: 0.25rem; }

/* ===============================
   WORK
   =============================== */
.work-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}
.project { display: flex; flex-direction: column; }

.proj-body { display: flex; flex-direction: column; gap: 0.75rem; }
.proj-body h3 { font-size: 1.45rem; color: var(--white); }
.proj-body p { font-size: 0.83rem; color: var(--muted); line-height: 1.6; flex: 1; }

.tag {
  font-size: 0.62rem; letter-spacing: 0.16em;
  color: var(--green);
  background: rgba(57,255,20,0.08);
  border: 1px solid rgba(57,255,20,0.25);
  display: inline-block; padding: 2px 8px;
  align-self: flex-start;
}

.tech-list { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tech-list span {
  font-size: 0.62rem; letter-spacing: 0.1em;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 2px 6px;
}
.proj-links { display: flex; gap: 0.5rem; margin-top: 0.25rem; }

/* ===============================
   SKILLS
   =============================== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 3rem;
}
.skill-cat {
  font-size: 1.15rem; color: var(--green);
  margin-bottom: 1.4rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}
.skill {
  display: grid;
  grid-template-columns: 140px 1fr 42px;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 0.95rem;
}
.sk-name { font-size: 0.78rem; color: var(--text); white-space: nowrap; }
.sk-bar {
  height: 7px;
  background: var(--bg3);
  border: 1px solid var(--border);
  overflow: hidden;
}
.sk-fill {
  height: 100%; width: 0%;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  transition: width 1s cubic-bezier(0.2, 0, 0.2, 1);
}
.sk-pct { font-size: 0.68rem; color: var(--muted); text-align: right; }

/* ===============================
   CONTACT
   =============================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

#contactForm { display: flex; flex-direction: column; gap: 1rem; }

.field { display: flex; flex-direction: column; gap: 0.3rem; }
.field label { font-size: 0.75rem; color: var(--muted); letter-spacing: 0.12em; }

.field input,
.field textarea {
  background: var(--bg2);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-b);
  font-size: 0.875rem;
  padding: 0.55rem 0.8rem;
  outline: none;
  resize: vertical;
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}
.field input:focus,
.field textarea:focus { border-color: var(--green-dim); box-shadow: 0 0 10px rgba(57,255,20,0.1); }
.field input::placeholder,
.field textarea::placeholder { color: var(--muted); opacity: 0.5; }

/* ===============================
   FOOTER
   =============================== */
footer {
  border-top: 1px solid var(--border);
  padding: 1.4rem 0;
}
.footer-inner {
  display: flex; align-items: center; flex-wrap: wrap;
  gap: 0.5rem 2rem;
}
.f-logo { font-family: var(--font-h); font-size: 1.35rem; color: var(--green); text-shadow: 0 0 8px var(--green); }
.f-copy, .f-credit { font-size: 0.68rem; color: var(--muted); letter-spacing: 0.1em; }
.f-status { font-size: 0.72rem; color: var(--muted); letter-spacing: 0.12em; margin-left: auto; }

/* ===============================
   RESPONSIVE
   =============================== */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: repeat(4, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
    position: absolute; top: 54px; left: 0; right: 0;
    background: rgba(5,12,5,0.97);
    border-bottom: 1px solid var(--border);
    flex-direction: column; gap: 0;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 0.85rem 1.75rem; }
  .nav-toggle { display: flex; }

  .about-stats { grid-template-columns: repeat(2, 1fr); }
  .hero-cta { flex-direction: column; }
  section { padding: 4rem 0; }
  .skill { grid-template-columns: 110px 1fr 40px; }
  .f-status { margin-left: 0; }
}

@media (max-width: 400px) {
  .hero-title { font-size: 1.1rem; }
}