/* =========================================================
   Christopher Calle — Portfolio
   Design system: "Mission Control"
   ========================================================= */

:root {
  /* Color tokens */
  --navy-950: #0E0F11;
  --navy-900: #18191C;
  --navy-800: #202226;
  --line: #2B2D31;
  --cyan: #3ECF8E;
  --cyan-dim: #1F7A54;
  --fog: #8B92A0;
  --paper: #ECEDEF;
  --white: #FFFFFF;

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

  /* Scale */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;
  --space-7: 9rem;

  --radius: 4px;
  --max-width: 1120px;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}
body {
  margin: 0;
  background: var(--navy-950);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--font-display); margin: 0; line-height: 1.15; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; }

/* Visible keyboard focus everywhere */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

.mono { font-family: var(--font-mono); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-bottom: var(--space-2);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--cyan);
  display: inline-block;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--cyan);
  color: var(--navy-950);
  font-weight: 600;
}
.btn-primary:hover { background: #ffb066; }
.btn-outline {
  border-color: var(--line);
  color: var(--paper);
}
.btn-outline:hover { border-color: var(--cyan); color: var(--cyan); }

/* --- Header / Nav --- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(11, 17, 32, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
}
.nav-logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.nav-logo .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}
.nav-links {
  display: flex;
  gap: var(--space-4);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}
.nav-links a { color: var(--fog); transition: color 0.15s ease; position: relative; }
.nav-links a:hover, .nav-links a.active { color: var(--paper); }
.nav-actions { display: flex; align-items: center; gap: var(--space-2); }
.nav-toggle {
  display: none;
  background: none; border: 1px solid var(--line); border-radius: var(--radius);
  color: var(--paper); padding: 0.5rem 0.7rem;
}

@media (max-width: 860px) {
  .nav-links { position: fixed; top: 60px; left: 0; right: 0; background: var(--navy-900);
    flex-direction: column; padding: var(--space-3); gap: var(--space-3);
    border-bottom: 1px solid var(--line); transform: translateY(-130%); transition: transform 0.25s ease; }
  .nav-links.open { transform: translateY(0); }
  .nav-toggle { display: inline-flex; }
  .nav-actions .btn-outline { display: none; }
}

/* --- Hero --- */
.hero {
  padding: 9rem 0 var(--space-6);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.18;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, black 30%, transparent 75%);
}
.hero-inner { position: relative; }
.status-strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--fog);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.75rem 1.1rem;
  background: rgba(19, 27, 46, 0.6);
  width: fit-content;
  margin-bottom: var(--space-4);
}
.status-strip span b { color: var(--paper); font-weight: 500; }
.status-live { color: var(--cyan); display: inline-flex; align-items: center; gap: 0.4rem; }
.status-live::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--cyan);
  box-shadow: 0 0 6px var(--cyan);
  animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  font-weight: 600;
  max-width: 16ch;
  color: var(--white);
}
.hero h1 .accent { color: var(--cyan); }
.hero-role {
  font-family: var(--font-mono);
  color: var(--cyan);
  font-size: clamp(1rem, 2vw, 1.25rem);
  margin-top: var(--space-2);
}
.hero-sub {
  max-width: 58ch;
  color: var(--fog);
  font-size: 1.08rem;
  margin-top: var(--space-3);
}
.hero-actions {
  display: flex; flex-wrap: wrap; gap: var(--space-2);
  margin-top: var(--space-4);
}

/* --- Hero layout: copy + live status widget --- */
.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: var(--space-5);
  align-items: start;
}
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
}

/* --- Status widget (mirrors a real system dashboard, not decoration) --- */
.status-widget {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--navy-900);
  padding: var(--space-3);
  margin-top: var(--space-2);
}
.status-widget-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fog);
  margin-bottom: var(--space-2);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--line);
}
.status-widget-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: var(--space-3);
}
.status-stat {
  background: var(--navy-950);
  padding: 0.75rem 0.6rem;
}
.status-stat .label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--fog);
  display: block;
  margin-bottom: 0.3rem;
}
.status-stat .value {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--cyan);
  line-height: 1;
}
.status-progress { display: flex; flex-direction: column; gap: 0.6rem; }
.status-progress-row {
  display: grid;
  grid-template-columns: 90px 1fr 34px;
  align-items: center;
  gap: 0.6rem;
}
.status-progress-row .p-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--fog);
}
.status-progress-row .p-pct {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--paper);
  text-align: right;
}
.p-track {
  height: 5px;
  background: var(--navy-950);
  border: 1px solid var(--line);
  border-radius: 2px;
  overflow: hidden;
}
.p-fill { height: 100%; background: var(--cyan); }

/* --- Section shell --- */
.section { padding: var(--space-6) 0; border-bottom: 1px solid var(--line); }
.section-head { margin-bottom: var(--space-4); max-width: 60ch; }
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); color: var(--white); }
.section-head p { color: var(--fog); margin-top: var(--space-1); }

/* --- About --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: var(--space-5);
  align-items: start;
}
.about-photo {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--navy-900);
}
.about-photo img { filter: grayscale(20%) contrast(1.05); }
.about-copy p { color: var(--fog); margin-bottom: var(--space-2); font-size: 1.02rem; }
.about-copy strong { color: var(--paper); font-weight: 600; }
.about-note {
  margin-top: var(--space-3);
  border-left: 2px solid var(--cyan);
  padding-left: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--fog);
}
@media (max-width: 780px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-photo { max-width: 260px; }
}

/* --- Skills --- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: var(--space-3);
}
.skill-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: var(--space-3);
  background: var(--navy-900);
}
.skill-panel h3 {
  font-size: 0.95rem;
  font-family: var(--font-mono);
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2);
}
.skill-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.skill-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.3rem 0.7rem;
}
.skill-panel.learning { border-color: var(--cyan-dim); background: rgba(79, 209, 197, 0.06); }
.skill-panel.learning h3 { color: var(--cyan); }
.skill-panel.learning .skill-tag { border-color: var(--cyan-dim); }

/* --- Projects --- */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-3);
}
.project-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--navy-900);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.project-card:hover { border-color: var(--cyan); transform: translateY(-3px); }
.project-thumb { aspect-ratio: 16/10; overflow: hidden; border-bottom: 1px solid var(--line); background: var(--navy-800); }
.project-thumb img { width: 100%; height: 100%; object-fit: cover; }
.project-thumb-placeholder { display: flex; align-items: center; justify-content: center; color: var(--fog); font-family: 'JetBrains Mono', monospace; font-size: 0.85rem; letter-spacing: 0.02em; }
.project-body { padding: var(--space-3); display: flex; flex-direction: column; gap: var(--space-2); flex: 1; }
.project-status { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--cyan); }
.project-body h3 { font-size: 1.25rem; color: var(--white); }
.project-body p { color: var(--fog); font-size: 0.95rem; }
.project-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: auto; }
.project-tags span {
  font-family: var(--font-mono); font-size: 0.7rem; color: var(--fog);
  border: 1px solid var(--line); border-radius: 4px; padding: 0.15rem 0.5rem;
}
.project-link {
  font-family: var(--font-mono); font-size: 0.82rem; color: var(--cyan);
  display: inline-flex; align-items: center; gap: 0.4rem; margin-top: var(--space-1);
}
.project-link:hover { text-decoration: underline; }

/* --- Experience: Mission Log --- */
.log {
  position: relative;
  padding-left: 2rem;
}
.log::before {
  content: "";
  position: absolute; left: 5px; top: 6px; bottom: 6px; width: 1px;
  background: var(--line);
}
.log-entry { position: relative; padding-bottom: var(--space-4); }
.log-entry:last-child { padding-bottom: 0; }
.log-entry::before {
  content: "";
  position: absolute; left: -2rem; top: 6px;
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--navy-950); border: 2px solid var(--cyan);
}
.log-date {
  font-family: var(--font-mono); font-size: 0.78rem; color: var(--cyan); letter-spacing: 0.04em;
}
.log-entry h3 { font-size: 1.2rem; color: var(--white); margin-top: 0.35rem; }
.log-role { color: var(--cyan); font-family: var(--font-mono); font-size: 0.85rem; margin-top: 0.15rem; }
.log-entry p, .log-entry ul { color: var(--fog); margin-top: 0.6rem; font-size: 0.95rem; }
.log-entry ul { padding-left: 1.1rem; list-style: disc; }
.log-entry li { margin-bottom: 0.25rem; }

/* --- Education --- */
.edu-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: var(--space-3); }
.edu-card-wide { grid-column: 1 / -1; }
.edu-card { border: 1px solid var(--line); border-radius: var(--radius); padding: var(--space-3); background: var(--navy-900); }
.edu-date { font-family: var(--font-mono); font-size: 0.75rem; color: var(--cyan); }
.edu-card h3 { font-size: 1.05rem; color: var(--white); margin-top: 0.4rem; }
.edu-card p { color: var(--fog); font-size: 0.9rem; margin-top: 0.25rem; }
.edu-card .edu-org { color: var(--cyan); font-size: 0.95rem; }
.edu-card .edu-desc { margin-top: var(--space-2); }
.edu-card .edu-skills { margin-top: var(--space-2); }
.edu-card .edu-skills p { margin-top: 0.6rem; color: var(--paper); line-height: 1.7; }
.edu-card .edu-skills .k { color: var(--cyan); font-weight: 500; }

/* --- Contact --- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); }
.contact-list { display: flex; flex-direction: column; gap: var(--space-2); margin-top: var(--space-3); }
.contact-list a { display: flex; align-items: center; gap: 0.6rem; font-family: var(--font-mono); font-size: 0.95rem; color: var(--paper); }
.contact-list a:hover { color: var(--cyan); }
.contact-list .k { color: var(--fog); width: 90px; display: inline-block; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em; }
.form-group { margin-bottom: var(--space-2); }
.form-group label { display: block; font-family: var(--font-mono); font-size: 0.78rem; color: var(--fog); margin-bottom: 0.4rem; text-transform: uppercase; letter-spacing: 0.05em; }
.form-group input, .form-group textarea {
  width: 100%; background: var(--navy-900); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 0.75rem 1rem; color: var(--paper); font-family: var(--font-body); font-size: 0.95rem;
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--cyan); outline: none; }
.form-note { font-size: 0.8rem; color: var(--fog); margin-top: var(--space-2); }
@media (max-width: 780px) { .contact-grid { grid-template-columns: 1fr; } }

/* --- Footer --- */
.site-footer { padding: var(--space-4) 0; }
.footer-inner {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: var(--space-2);
  font-family: var(--font-mono); font-size: 0.75rem; color: var(--fog);
}
.footer-coords { letter-spacing: 0.04em; }

/* --- Case study page shared bits --- */
.case-hero { padding: 8.5rem 0 var(--space-5); border-bottom: 1px solid var(--line); }
.case-back { font-family: var(--font-mono); font-size: 0.82rem; color: var(--cyan); display: inline-flex; align-items: center; gap: 0.4rem; margin-bottom: var(--space-3); }
.case-hero h1 { font-size: clamp(2rem, 4.5vw, 3rem); color: var(--white); max-width: 22ch; }
.case-meta { display: flex; flex-wrap: wrap; gap: var(--space-4); margin-top: var(--space-4); font-family: var(--font-mono); font-size: 0.82rem; }
.case-meta .k { color: var(--fog); display: block; text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.7rem; margin-bottom: 0.3rem; }
.case-image { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin: var(--space-5) 0; }
.case-image-placeholder { display: flex; align-items: center; justify-content: center; aspect-ratio: 16/9; background: var(--navy-800); color: var(--fog); font-family: 'JetBrains Mono', monospace; font-size: 0.9rem; letter-spacing: 0.02em; }
.case-body { max-width: 72ch; }
.case-body h2 { font-size: 1.4rem; color: var(--white); margin-top: var(--space-5); margin-bottom: var(--space-2); }
.case-body p { color: var(--fog); margin-bottom: var(--space-2); font-size: 1.02rem; }
.case-body ul { list-style: disc; padding-left: 1.2rem; color: var(--fog); }
.case-body li { margin-bottom: 0.4rem; }
.case-cta { margin-top: var(--space-5); display: flex; gap: var(--space-2); flex-wrap: wrap; }