/* =========================================================
   Lina Molinas Comet — site redesign
   Palette:  #FFFFFF bg / #14101F ink / #6B24E8 violet
             #FF4D73 coral / #00C2A8 teal / #FFC94D amber
   Type:     Space Grotesk (display) / Inter (body) / JetBrains Mono (data)
   ========================================================= */

:root{
  --bg:        #FFFFFF;
  --bg-tint:   #FAF7FF;
  --ink:       #14101F;
  --ink-soft:  #5C5468;
  --line:      #ECE6F7;

  --violet:    #6B24E8;
  --violet-deep:#4A16A8;
  --coral:     #FF4D73;
  --teal:      #00A896;
  --amber:     #F5A300;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 28px;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --maxw: 980px;
}

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

html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img{ max-width: 100%; display: block; }

a{ color: inherit; }

::selection{ background: var(--violet); color: #fff; }

:focus-visible{
  outline: 3px solid var(--coral);
  outline-offset: 3px;
  border-radius: 4px;
}

h1, h2, h3, h4{
  font-family: var(--font-display);
  line-height: 1.1;
  margin: 0 0 .5em;
  letter-spacing: -0.01em;
}

p{ margin: 0 0 1em; color: var(--ink-soft); }

.wrap{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Top nav ---------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--maxw);
  margin: 0 auto;
}
.nav .brand{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand .dot{
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--violet);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--violet) 18%, transparent);
}
.nav-links{
  display: flex;
  gap: 4px;
  list-style: none;
  margin: 0; padding: 0;
}
.nav-links a{
  text-decoration: none;
  font-weight: 600;
  font-size: .92rem;
  padding: 8px 16px;
  border-radius: 999px;
  color: var(--ink);
  transition: background .18s ease, color .18s ease;
}
.nav-links a:hover{ background: var(--bg-tint); }
.nav-links a.active{
  background: var(--ink);
  color: #fff;
}

/* ---------- Buttons / chips ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 700;
  font-size: .95rem;
  text-decoration: none;
  border: 2px solid var(--ink);
  color: var(--ink);
  transition: transform .15s ease, background .15s ease, color .15s ease;
}
.btn:hover{ transform: translateY(-2px); }
.btn.primary{
  background: var(--ink);
  color: #fff;
}
.btn.primary:hover{ background: var(--violet-deep); border-color: var(--violet-deep); }

.chip{
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 8px;
  background: var(--bg-tint);
  color: var(--violet-deep);
  border: 1px solid var(--line);
}

/* ---------- Hero ---------- */
.hero{
  padding: 72px 0 56px;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 40px;
  align-items: center;
}
.hero .eyebrow{
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .78rem;
  color: var(--coral);
  font-weight: 700;
  margin-bottom: 14px;
  display: block;
}
.hero h1{
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  margin-bottom: .2em;
}
.hero h1 .accent{ color: var(--violet); }
.hero .role{
  font-size: 1.15rem;
  color: var(--ink-soft);
  font-weight: 500;
  margin-bottom: 1.4em;
  max-width: 46ch;
}
.hero-actions{ display:flex; gap: 12px; flex-wrap: wrap; margin-bottom: 22px; }
.social-row{ display:flex; gap: 14px; }
.social-row a{
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 2px solid var(--line);
  display: flex; align-items:center; justify-content:center;
  text-decoration:none;
  transition: border-color .15s ease, transform .15s ease;
}
.social-row a:hover{ border-color: var(--violet); transform: translateY(-2px); }
.social-row svg{ width: 18px; height: 18px; }

/* node graph signature */
.graph-wrap{ display:flex; align-items:center; justify-content:center; }
.graph-wrap svg{ width: 100%; height: auto; max-width: 420px; }
.graph-wrap .node-label{
  font-family: var(--font-mono);
  font-size: 10px;
  fill: var(--ink-soft);
}
.graph-wrap circle.core{ fill: var(--ink); }
.graph-wrap line{
  stroke: var(--line);
  stroke-width: 1.6;
}
.graph-wrap .edge-anim{
  stroke-dasharray: 140;
  stroke-dashoffset: 140;
  animation: draw 1.1s ease forwards;
}
@keyframes draw{ to{ stroke-dashoffset: 0; } }
@media (prefers-reduced-motion: reduce){
  .graph-wrap .edge-anim{ animation: none; stroke-dashoffset: 0; }
}

/* ---------- Sections ---------- */
section.block{ padding: 56px 0; border-top: 1px solid var(--line); }
section.block:first-of-type{ border-top: none; }
.block .eyebrow{
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .74rem;
  font-weight: 700;
  color: var(--teal);
  margin-bottom: 10px;
  display:block;
}
.block h2{ font-size: clamp(1.6rem, 3vw, 2.1rem); margin-bottom: .6em; }

/* about layout */
.about-grid{
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
}
.about-photo{
  width: 180px; height: 180px;
  border-radius: var(--radius-lg);
  object-fit: cover;
  border: 3px solid var(--ink);
}
.skills-groups{ display:grid; gap: 22px; margin-top: 8px; }
.skills-group h4{
  font-family: var(--font-mono);
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--ink-soft);
  font-weight: 600;
  margin-bottom: 10px;
}
.chip-row{ display:flex; flex-wrap:wrap; gap: 8px; }

.lang-list{ display:grid; gap: 10px; max-width: 420px; }
.lang-row{ display:grid; grid-template-columns: 110px 1fr; align-items:center; gap: 12px; font-size:.9rem;}
.lang-bar{ height: 8px; border-radius: 999px; background: var(--bg-tint); overflow:hidden; }
.lang-bar span{ display:block; height:100%; background: var(--violet); border-radius: 999px; }

.pub-list{ list-style:none; margin:0; padding:0; display:grid; gap: 14px; }
.pub-list li{
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  font-size: .95rem;
  transition: border-color .15s ease, background .15s ease;
}
.pub-list li:hover{ border-color: var(--violet); background: var(--bg-tint); }
.pub-list a{ text-decoration:none; font-weight:600; }
.pub-list a:hover{ color: var(--violet-deep); }

/* cards: blog / projects */
.card-grid{ display:grid; gap: 18px; }
.entry-card{
  display:flex; align-items:center; justify-content:space-between; gap: 16px;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  text-decoration:none;
  color: var(--ink);
  transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
  background: #fff;
}
.entry-card.tall{ align-items: flex-start; }
.entry-card:hover{
  transform: translateY(-3px);
  border-color: var(--violet);
  box-shadow: 0 10px 24px rgba(107,36,232,.10);
}
.entry-card .entry-title{ font-weight: 700; font-size: 1.05rem; margin-bottom: 4px; }
.entry-card .entry-date{ font-family: var(--font-mono); font-size: .78rem; color: var(--ink-soft); }
.entry-card .arrow{ font-size: 1.3rem; color: var(--coral); flex-shrink:0; }
.entry-card .entry-desc{ font-size: .92rem; color: var(--ink-soft); margin: 6px 0 10px; max-width: 60ch; }
.entry-card .entry-tags{ display:flex; gap:8px; flex-wrap:wrap; }
.entry-card .entry-main{ flex: 1; min-width: 0; }

.empty-note{
  padding: 22px 24px;
  border: 1px dashed var(--line);
  border-radius: var(--radius-md);
  color: var(--ink-soft);
  font-size: .92rem;
}

/* footer */
.site-footer{
  border-top: 1px solid var(--line);
  padding: 34px 0 46px;
  margin-top: 20px;
}
.footer-row{
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap: 12px;
  font-size: .85rem; color: var(--ink-soft);
}
.footer-row a{ text-decoration:none; font-weight:600; color: var(--ink); }

@media (max-width: 760px){
  .hero{ grid-template-columns: 1fr; padding-top: 40px; }
  .graph-wrap{ order:-1; }
  .about-grid{ grid-template-columns: 1fr; }
  .nav-links{ gap: 0; }
  .nav-links a{ padding: 8px 10px; font-size:.86rem; }
}