/* ==========================================================================
   Josh Davis – joshdavis.me
   Retro Terminal Theme
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties
   -------------------------------------------------------------------------- */
:root {
  /* Terminal palette */
  --bg-dark:      #0a0e14;
  --bg-terminal:  #0d1117;
  --bg-surface:   #161b22;
  --bg-card:      #1c2333;
  --bg-hover:     #252d3d;
  --border:       #2d3748;

  --green-bright: #3fb950;
  --green-dim:    #2ea043;
  --green-faint:  #1a3a2a;
  --amber:        #d29922;
  --red:          #f85149;
  --blue:         #58a6ff;
  --purple:       #bc8cff;

  --text-primary:    #e6edf3;
  --text-secondary:  #8b949e;
  --text-dim:        #484f58;
  --text-prompt:     #3fb950;
  --text-output:     #c9d1d9;
  --text-cmd:        #d29922;

  /* Typography */
  --font-mono:  'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --font-sans:  'Inter', system-ui, -apple-system, sans-serif;

  /* Spacing */
  --space-xs:   0.25rem;
  --space-sm:   0.5rem;
  --space-md:   1rem;
  --space-lg:   1.5rem;
  --space-xl:   2rem;
  --space-2xl:  3rem;
  --space-3xl:  4rem;
  --space-4xl:  5rem;

  /* Layout */
  --container-max: 1100px;
  --container-pad: 1.5rem;

  /* Misc */
  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --radius-full: 9999px;
  --transition: 200ms ease;
  --nav-height: 56px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-dark);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: var(--green-bright);
  color: var(--bg-dark);
}

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

a {
  color: var(--blue);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--green-bright);
}

ul {
  list-style: none;
}

h1, h2, h3, h4 {
  color: var(--text-primary);
  line-height: 1.3;
  font-weight: 700;
}

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

/* --------------------------------------------------------------------------
   Layout Utilities
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg-terminal);
  border-bottom: 1px solid var(--border);
  height: var(--nav-height);
  display: flex;
  align-items: center;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  flex-shrink: 0;
  text-decoration: none;
}

.nav__logo:hover {
  color: var(--green-bright);
}

.nav__logo-prompt {
  color: var(--green-bright);
  font-weight: 400;
}

.nav__logo-text {
  color: var(--amber);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav__link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background-color var(--transition);
  text-decoration: none;
}

.nav__link:hover {
  color: var(--text-primary);
  background-color: var(--bg-hover);
}

.nav__link--cta {
  color: var(--green-bright);
  background-color: var(--green-faint);
  border: 1px solid var(--green-dim);
}

.nav__link--cta:hover {
  background-color: var(--green-dim);
  color: var(--bg-dark);
}

.nav__link--active {
  color: var(--green-bright);
  background-color: var(--green-faint);
}

/* Hamburger toggle (mobile) */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Header social icons */
.nav__social {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-left: var(--space-sm);
  padding-left: var(--space-sm);
  border-left: 1px solid var(--border);
}

.nav__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  transition: color var(--transition);
  padding: 0.25rem;
}

.nav__social-link:hover {
  color: var(--green-bright);
}

.nav__social-link .icon {
  width: 16px;
  height: 16px;
}

/* Scrolled header shadow */
.site-header--scrolled {
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.3);
}

/* --------------------------------------------------------------------------
   Sections
   -------------------------------------------------------------------------- */
.section {
  padding-block: var(--space-4xl);
}

.section--alt {
  background-color: var(--bg-surface);
}

.section__title {
  font-family: var(--font-mono);
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  color: var(--green-bright);
  margin-bottom: var(--space-2xl);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.section__title-prompt {
  color: var(--green-bright);
}

/* --------------------------------------------------------------------------
   Hero / Terminal
   -------------------------------------------------------------------------- */
.hero {
  background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-terminal) 100%);
  padding-block: var(--space-3xl) var(--space-xl);
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}

/* Terminal Window */
.terminal {
  max-width: 100%;
  margin: 0 auto;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 0 30px rgba(63, 185, 80, 0.06), 0 0 60px rgba(0,0,0,0.4);
  border: 1px solid var(--border);
}

.terminal__titlebar {
  display: flex;
  align-items: center;
  background-color: var(--bg-card);
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
  gap: 0.5rem;
}

.terminal__dots {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.terminal__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.terminal__dot--red   { background: var(--red); }
.terminal__dot--yellow { background: var(--amber); }
.terminal__dot--green  { background: var(--green-bright); }

.terminal__title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-align: center;
  flex: 1;
}

.terminal__spacer {
  width: 52px;
  flex-shrink: 0;
}

.terminal__body {
  background-color: var(--bg-terminal);
  padding: var(--space-xl) var(--space-lg);
}

/* Two-column terminal layout */
.terminal__body-inner {
  display: flex;
  gap: var(--space-xl);
  align-items: stretch;
}

.terminal__content {
  flex: 1;
  min-width: 0;
}

.terminal__photo-panel {
  position: relative;
  flex-shrink: 0;
  width: clamp(180px, 40%, 320px);
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid var(--green-dim);
  background-color: var(--bg-card);
  box-shadow: 0 0 20px rgba(63, 185, 80, 0.1);
}

.terminal__photo-panel .terminal__photo {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.terminal__ascii {
  font-family: var(--font-mono);
  font-size: clamp(0.5rem, 1.8vw, 0.85rem);
  line-height: 1.3;
  color: var(--green-bright);
  text-align: left;
  margin-bottom: var(--space-xl);
  opacity: 0.9;
  user-select: none;
  overflow: hidden;
  white-space: pre;
  padding-left: 0;
  mask-image: linear-gradient(to right, transparent 0%, #000 4%, #000 96%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 4%, #000 96%, transparent 100%);
}

@media (max-width: 1024px) {
  .terminal__ascii-inner {
    display: inline-block;
    white-space: pre;
    animation: marquee-scroll 20s linear infinite;
    padding-left: 0;
  }
}

@keyframes marquee-scroll {
  0% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(0);
  }
  75% {
    transform: translateX(calc(-100% + 100vw - 6rem));
  }
  100% {
    transform: translateX(calc(-100% + 100vw - 6rem));
  }
}

.terminal__lines {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.terminal__line {
  font-family: var(--font-mono);
  font-size: clamp(0.8rem, 2vw, 0.95rem);
  line-height: 1.6;
  word-break: break-word;
}

.terminal__line--output {
  padding-left: 1.5rem;
  padding-bottom: 0.5rem;
}

.terminal__prompt {
  color: var(--green-bright);
  margin-right: 0.5rem;
  white-space: nowrap;
}

.terminal__cmd {
  color: var(--amber);
}

.terminal__cmd--blink {
  animation: blink 1s step-end infinite;
}

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

.terminal__output {
  color: var(--text-output);
}

/* Scroll hint */
.hero__scroll-hint {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  animation: float 2s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

.hero__scroll-arrow {
  font-size: 1rem;
}

/* --------------------------------------------------------------------------
   Experience / Timeline
   -------------------------------------------------------------------------- */
.timeline {
  position: relative;
  padding-left: var(--space-xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 9px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: var(--border);
}

.timeline__item {
  position: relative;
  margin-bottom: var(--space-xl);
}

.timeline__item:last-child {
  margin-bottom: 0;
}

.timeline__marker {
  position: absolute;
  left: calc(-1 * var(--space-xl) + 2px);
  top: 10px;
  font-size: 0.8rem;
  color: var(--green-bright);
}

.timeline__body {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.timeline__body:hover {
  border-color: var(--green-dim);
  box-shadow: 0 0 20px rgba(63, 185, 80, 0.04);
}

.timeline__header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-md);
}

.timeline__role {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--amber);
  flex: 1 1 auto;
}

.timeline__company {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--green-bright);
}

.timeline__period {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.timeline__details {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.timeline__details li {
  font-size: 0.9rem;
  color: var(--text-output);
  line-height: 1.65;
  padding-left: 0.75rem;
  border-left: 2px solid var(--border);
}

/* --------------------------------------------------------------------------
   Education
   -------------------------------------------------------------------------- */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--space-lg);
}

.edu-card {
  max-width: 600px;
}

.edu-card__body {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition);
}

.edu-card__body:hover {
  border-color: var(--green-dim);
}

.edu-card__terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.5rem 0.75rem;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border);
}

.edu-card__terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.edu-card__terminal-dot--r { background: var(--red); }
.edu-card__terminal-dot--y { background: var(--amber); }
.edu-card__terminal-dot--g { background: var(--green-bright); }

.edu-card__content {
  padding: var(--space-lg);
}

.edu-card__school {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--amber);
  margin-bottom: var(--space-sm);
  margin-top: var(--space-md);
}

.edu-card__degree {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

.edu-card__major {
  color: var(--green-bright);
  font-weight: 600;
}

.edu-card__honors {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--purple);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border);
}

.edu-card__stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.edu-stat {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.65rem;
}

.edu-card__period {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   Skills
   -------------------------------------------------------------------------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-lg);
}

.skill-group {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.skill-group__title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--green-bright);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border);
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* Keycaps */
.skill-keycap {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.2rem 0.65rem;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
  cursor: default;
  position: relative;
  box-shadow: 0 2px 0 var(--border);
}

.skill-keycap:hover {
  background-color: var(--bg-hover);
  color: var(--green-bright);
  border-color: var(--green-dim);
  box-shadow: 0 2px 0 var(--green-dim), 0 0 12px rgba(63, 185, 80, 0.08);
  transform: translateY(-1px);
}

/* --------------------------------------------------------------------------
   Icons
   -------------------------------------------------------------------------- */
.icon {
  width: 18px;
  height: 18px;
  fill: currentColor;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   Contact
   -------------------------------------------------------------------------- */
.contact {
  text-align: center;
}

.contact__intro {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin-inline: auto;
  margin-bottom: var(--space-2xl);
  line-height: 1.8;
}

.contact__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
}

.contact__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.6rem 1.1rem;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
  text-decoration: none;
  box-shadow: 0 2px 0 var(--border);
}

.contact__link:hover {
  background-color: var(--bg-hover);
  color: var(--green-bright);
  border-color: var(--green-dim);
  box-shadow: 0 2px 0 var(--green-dim), 0 0 16px rgba(63, 185, 80, 0.08);
  transform: translateY(-2px);
}

.contact__label {
  word-break: break-all;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--bg-terminal);
  border-top: 1px solid var(--border);
  padding-block: var(--space-lg);
}

.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.site-footer__copy {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.site-footer__cmd {
  color: var(--amber);
}

.site-footer__out {
  color: var(--text-secondary);
}

.site-footer__links {
  display: flex;
  gap: var(--space-md);
}

.site-footer__links a {
  color: var(--text-dim);
  transition: color var(--transition);
}

.site-footer__links a:hover {
  color: var(--green-bright);
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  :root {
    --space-4xl: 3rem;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background-color: var(--bg-surface);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-md);
    gap: var(--space-xs);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  }

  .nav__links.is-open {
    display: flex;
  }

  .nav__link {
    padding: var(--space-md);
    border-radius: var(--radius-sm);
    text-align: center;
  }

  .nav__social {
    display: none;
  }

  .nav__link--cta {
    border-radius: var(--radius-sm);
  }

  .hero {
    min-height: auto;
  }

  .terminal__body {
    padding: var(--space-lg) var(--space-md);
  }

  .terminal__body-inner {
    flex-direction: column;
  }

  .terminal__photo-panel {
    width: min(100%, 280px);
    aspect-ratio: 1;
    order: -1;
    align-self: center;
  }

  .timeline__header {
    flex-direction: column;
    gap: var(--space-xs);
  }

  .site-footer__inner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .terminal__ascii {
    font-size: 0.4rem;
  }

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

  .contact__links {
    flex-direction: column;
    align-items: center;
  }
}

/* --------------------------------------------------------------------------
   Print
   -------------------------------------------------------------------------- */
@media print {
  .site-header,
  .hero__scroll-hint,
  .nav__toggle {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
    font-size: 11pt;
  }

  .terminal {
    box-shadow: none;
    border: 1px solid #ccc;
  }

  .terminal__ascii,
  .terminal__prompt,
  .terminal__cmd {
    color: #333;
  }

  .section__title-prompt {
    color: #333;
  }

  .section {
    padding-block: 1rem;
    background: #fff !important;
  }

  .timeline__body,
  .edu-card__body,
  .skill-group {
    background: #fff;
    border: 1px solid #ccc;
  }

  .timeline__role {
    color: #000;
  }

  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
    color: #555;
  }
}