@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:ital,wght@0,300;0,400;0,500;1,300&display=swap');

:root {
  --bg:      #0d0d0d;
  --surface: #111111;
  --border:  #1e1e1e;
  --dim:     #3a3a3a;
  --muted:   #666666;
  --text:    #c8c8c8;
  --bright:  #e8e8e8;
  --accent:  #7eb8f7;
  --accent2: #f0a060;
  --green:   #6fcf7a;
  --red:     #ff6b6b;
  --prompt:  #5a9fd4;
  --cursor:  #7eb8f7;
}

/* ── Solarized Light theme ── */
[data-theme="light"] {
  --bg:      #fdf6e3;
  --surface: #eee8d5;
  --border:  #d3cbb7;
  --dim:     #93a1a1;
  --muted:   #586e75;
  --text:    #657b83;
  --bright:  #073642;
  --accent:  #268bd2;
  --accent2: #cb4b16;
  --green:   #859900;
  --red:     #dc322f;
  --prompt:  #268bd2;
  --cursor:  #268bd2;
}

[data-theme="light"] ::selection { background: rgba(38,139,210,0.18); }

[data-theme="light"] body::after {
  background: none;
}

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

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 13px;
  line-height: 1.65;
  min-height: 100vh;
}

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--dim); border-radius: 2px; }

::selection { background: rgba(126,184,247,0.18); }

a { color: var(--accent); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--accent2); }

/* scanline overlay */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 2px,
    rgba(0,0,0,0.03) 2px, rgba(0,0,0,0.03) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

/* ═══════════════════════════════ NAV */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 38px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  z-index: 100;
}

.nav-prefix {
  color: var(--muted);
  font-size: 11px;
  margin-right: 20px;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

nav ul { list-style: none; display: flex; }

nav ul li a {
  color: var(--muted);
  text-decoration: none;
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 10px 13px;
  display: block;
  transition: color 0.15s;
  text-transform: lowercase;
}

nav ul li a:hover { color: var(--accent); }

nav ul li.active a {
  color: var(--bright);
  border-bottom: 1px solid var(--accent);
}

@media (max-width: 680px) {
  nav { padding: 0 10px; }
  .nav-prefix { display: none; }
  nav ul li a { padding: 10px 8px; font-size: 10px; letter-spacing: 0; }
}

/* ═══════════════════════════════ MAIN */
main {
  max-width: 860px;
  margin: 0 auto;
  padding: 70px 28px 80px;
}

@media (max-width: 640px) { main { padding: 58px 16px 60px; } }

/* ── boot header ── */
.boot-header {
  border: 1px solid var(--border);
  padding: 16px 20px;
  margin-bottom: 32px;
  position: relative;
}

.boot-header::before {
  content: 'OUTPUT';
  position: absolute;
  top: -1px; left: 16px;
  background: var(--bg);
  color: var(--dim);
  font-size: 9px;
  letter-spacing: 0.15em;
  padding: 0 6px;
}

.boot-line { color: var(--muted); font-size: 11px; letter-spacing: 0.02em; }
.boot-line .ok   { color: var(--green); }
.boot-line .warn { color: var(--accent2); }
.boot-line .path { color: var(--accent); }
.boot-line .err  { color: var(--red); }

/* ── section command ── */
.section-cmd {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-top: 36px;
  margin-bottom: 12px;
}

.section-cmd .dollar { color: var(--prompt); font-size: 13px; }
.section-cmd .cmd    { color: var(--bright); font-size: 13px; }
.section-cmd .flag   { color: var(--accent); }
.section-cmd .arg    { color: var(--accent2); }

/* ── content block ── */
.block {
  border-left: 2px solid var(--border);
  padding: 12px 0 12px 18px;
  color: var(--text);
  font-size: 12.5px;
  line-height: 1.8;
}

.block p + p { margin-top: 10px; }
.tag { color: var(--accent); font-weight: 500; }

/* ── terminal prompt ── */
.terminal-prompt {
  margin-top: 48px;
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.terminal-prompt .ps1 {
  color: var(--prompt);
  white-space: nowrap;
  font-size: 12px;
  flex-shrink: 0;
}

.t-input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--bright);
  font-family: inherit;
  font-size: 12px;
  width: 100%;
  caret-color: var(--cursor);
}

.t-response {
  margin-top: 8px;
  font-size: 12px;
  padding-left: 2px;
  min-height: 20px;
  color: var(--text);
}

/* ═══════════════════════════════ INDEX PAGE */
.who-block {
  display: flex;
  gap: 28px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.who-photo-col { flex-shrink: 0; }

.photo-frame {
  position: relative;
  width: 160px;
  cursor: default;
}

.profile-photo {
  width: 160px;
  height: auto;
  display: block;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.who-text-col { flex: 1; min-width: 240px; }

.who-field {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 5px;
  font-size: 12px;
}

.who-key { color: var(--muted); min-width: 52px; letter-spacing: 0.04em; }
.who-sep { color: var(--dim); }
.who-val { color: var(--text); }
.who-val.bright { color: var(--bright); font-weight: 500; }
.who-val.accent { color: var(--accent2); }

.contact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.contact-chip {
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 11px;
  padding: 5px 12px;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: color 0.15s, border-color 0.15s;
}

.contact-chip:hover { color: var(--accent); border-color: var(--dim); }

.log-block { margin-top: 4px; }

.log-entry {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--border);
  font-size: 11px;
}

.log-entry:last-child { border-bottom: none; }

.log-ts { color: var(--dim); min-width: 60px; }

.log-lvl {
  font-size: 9px;
  letter-spacing: 0.1em;
  padding: 2px 6px;
  border: 1px solid;
}

.log-lvl.new { color: var(--accent2); border-color: var(--accent2); }
.log-lvl.ok  { color: var(--green);   border-color: var(--green); }
.log-lvl.info{ color: var(--accent);  border-color: var(--accent); }

.log-msg { color: var(--text); flex: 1; }
.log-msg a { color: var(--accent); }

.mini-papers { margin-top: 4px; }

.mini-paper {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.mp-venue {
  font-size: 10px;
  color: var(--accent2);
  letter-spacing: 0.08em;
  min-width: 72px;
  flex-shrink: 0;
}

.mp-title {
  color: var(--text);
  font-size: 12px;
  flex: 1;
  text-decoration: none;
  transition: color 0.15s;
}

.mp-title:hover { color: var(--accent); }

.mp-badge {
  font-size: 9px;
  color: var(--accent2);
  border: 1px solid var(--accent2);
  padding: 1px 5px;
  letter-spacing: 0.06em;
  flex-shrink: 0;
}

.mini-more {
  padding: 10px 0;
  font-size: 11px;
}

.mini-more a { color: var(--muted); }
.mini-more a:hover { color: var(--accent); }

/* ═══════════════════════════════ RESEARCH PAGE */
.intro-block {
  border-left: 2px solid var(--border);
  padding: 12px 0 12px 18px;
  margin-bottom: 8px;
  color: var(--text);
  font-size: 12.5px;
  line-height: 1.75;
}

.intro-block p + p { margin-top: 10px; }
.intro-block .tag { color: var(--accent); font-weight: 500; }

.papers-list { margin-top: 8px; }

.paper {
  border: 1px solid var(--border);
  margin-bottom: 14px;
  transition: border-color 0.2s;
  position: relative;
}

.paper:hover { border-color: var(--dim); }

.paper-header {
  display: flex;
  align-items: stretch;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  user-select: none;
}

.paper-index {
  color: var(--dim);
  font-size: 10px;
  padding: 12px 14px;
  border-right: 1px solid var(--border);
  display: flex;
  align-items: center;
  min-width: 42px;
  justify-content: center;
  flex-shrink: 0;
}

.paper:hover .paper-index { color: var(--muted); }

.paper-meta {
  padding: 11px 16px;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.paper-venue {
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--muted);
  white-space: nowrap;
}

.paper-venue .highlight-venue { color: var(--accent2); font-weight: 500; }

.paper-title-line {
  color: var(--bright);
  font-size: 12px;
  font-weight: 500;
  flex: 1;
  line-height: 1.4;
}

.paper-chevron {
  color: var(--dim);
  font-size: 10px;
  padding-right: 2px;
  flex-shrink: 0;
  transition: transform 0.2s, color 0.2s;
}

.paper.open .paper-chevron { transform: rotate(90deg); color: var(--accent); }

.paper-body {
  display: none;
  padding: 16px 18px 16px 56px;
  font-size: 12px;
  line-height: 1.75;
  color: var(--text);
  border-top: 1px solid var(--border);
}

.paper.open .paper-body { display: block; }

.paper-authors {
  color: var(--muted);
  font-size: 11px;
  margin-bottom: 8px;
}

.paper-authors strong { color: var(--accent); font-weight: 400; }

.paper-abstract { margin-bottom: 12px; }

.paper-links {
  display: flex;
  gap: 0;
  flex-wrap: wrap;
}

.paper-links a {
  font-size: 11px;
  color: var(--muted);
  text-decoration: none;
  padding: 4px 12px 4px 0;
  transition: color 0.15s;
  letter-spacing: 0.04em;
}

.paper-links a::before { content: '-> '; color: var(--dim); }
.paper-links a:hover { color: var(--accent); }

.badge {
  display: inline-block;
  font-size: 10px;
  color: var(--accent2);
  border: 1px solid var(--accent2);
  padding: 1px 6px;
  margin-left: 8px;
  letter-spacing: 0.06em;
  vertical-align: middle;
}

@media (max-width: 600px) {
  .paper-meta { flex-direction: column; align-items: flex-start; gap: 4px; }
  .paper-body { padding-left: 18px; }
}

/* ═══════════════════════════════ CONTACT PAGE */
.contact-table { margin-top: 4px; }

.contact-entry {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 11px;
}

.contact-entry:last-child { border-bottom: none; }

.contact-idx { color: var(--dim); min-width: 24px; }
.contact-label { color: var(--muted); min-width: 80px; letter-spacing: 0.06em; }

.contact-entry a {
  color: var(--text);
  transition: color 0.15s;
}

.contact-entry a:hover { color: var(--accent); }

.availability {
  margin-top: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--muted);
}

.pulse-dot {
  width: 6px;
  height: 6px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ═══════════════════════════════ THEME TOGGLE */
.theme-toggle {
  margin-left: auto;
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: inherit;
  font-size: 14px;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
  flex-shrink: 0;
  border-radius: 4px;
  line-height: 1;
}

.theme-toggle:hover {
  color: var(--accent);
  border-color: var(--dim);
}

/* ═══════════════════════════════ HAL 9000 EYE */
.hal-eye {
  position: relative;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: radial-gradient(circle, #ff3030 0%, #cc0000 40%, #660000 100%);
  box-shadow: 0 0 6px 2px rgba(255, 40, 40, 0.4), 0 0 20px 4px rgba(255, 40, 40, 0.15);
  animation: hal-glow 3s ease-in-out infinite;
  flex-shrink: 0;
}

[data-theme="light"] .hal-eye {
  box-shadow: 0 0 6px 2px rgba(255, 40, 40, 0.3), 0 0 16px 4px rgba(255, 40, 40, 0.1);
}

@keyframes hal-glow {
  0%, 100% { box-shadow: 0 0 6px 2px rgba(255, 40, 40, 0.4), 0 0 20px 4px rgba(255, 40, 40, 0.15); }
  50% { box-shadow: 0 0 8px 3px rgba(255, 40, 40, 0.6), 0 0 28px 6px rgba(255, 40, 40, 0.25); }
}

/* ── HAL status bar ── */
.hal-status {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--dim);
}

.hal-status .hal-label {
  text-transform: uppercase;
}

.hal-status .hal-beep {
  color: var(--red);
  animation: beep-blink 1.5s step-end infinite;
}

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

/* ── Robot ASCII footer ── */
.robot-footer {
  text-align: center;
  font-size: 9px;
  color: var(--dim);
  letter-spacing: 0.05em;
  line-height: 1.3;
  margin-bottom: 6px;
}

.robot-footer .robot-ascii {
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--muted);
  margin-bottom: 4px;
}