/* ═══════════════════════════════════════════════════════════════
   TOKENS
═══════════════════════════════════════════════════════════════ */
:root {
  --bg-base:      #0b0b0b;
  --bg-surface:   #111111;
  --bg-elevated:  #181818;
  --bg-hover:     #1e1e1e;
  --bg-active:    #232323;

  --border:       #252525;
  --border-soft:  #1e1e1e;

  --text-primary: #e2e2e2;
  --text-secondary: #888;
  --text-muted:   #444;
  --text-dim:     #333;

  --accent:       #c9c9c9;
  --accent-soft:  #555;

  --user-bubble:  #181818;
  --ai-bubble:    #111111;

  --dot-red:      #ff5f57;
  --dot-yellow:   #febc2e;
  --dot-green:    #28c840;

  --sidebar-w:    268px;
  --radius:       6px;
  --radius-msg:   10px;

  --font: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
}

/* ═══════════════════════════════════════════════════════════════
   RESET & BASE
═══════════════════════════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { height: 100%; }

body {
  font-family: var(--font);
  background: var(--bg-base);
  color: var(--text-primary);
  height: 100%;
  overflow: hidden;
  font-size: 13px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ═══════════════════════════════════════════════════════════════
   LOADING SCREEN
═══════════════════════════════════════════════════════════════ */
#loading-screen {
  position: fixed;
  inset: 0;
  background: var(--bg-base);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity .5s ease, visibility .5s ease;
}

#loading-screen.fade-out {
  opacity: 0;
  visibility: hidden;
}

.boot-terminal {
  width: min(520px, 90vw);
  margin: auto;
}

.boot-line {
  font-size: 14px;
  color: var(--text-primary);
  letter-spacing: .02em;
  min-height: 22px;
}

.boot-output {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.boot-row {
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 10px;
  opacity: 0;
  transform: translateY(4px);
  animation: boot-row-in .25s ease forwards;
}

.boot-row .check  { color: var(--dot-green); }
.boot-row .dash   { color: var(--text-muted); }
.boot-row .header { color: var(--text-primary); font-size: 15px; font-weight: 600; letter-spacing: .04em; }
.boot-row .dim    { color: var(--text-muted); }
.boot-row.spacer  { min-height: 10px; }
.boot-row.ready   { color: var(--text-primary); margin-top: 6px; }

@keyframes boot-row-in {
  to { opacity: 1; transform: translateY(0); }
}

.boot-cursor {
  display: inline-block;
  width: 8px;
  height: 15px;
  background: var(--text-primary);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink-block .8s step-end infinite;
}

@keyframes blink-block {
  50% { opacity: 0; }
}

/* ═══════════════════════════════════════════════════════════════
   APP LAYOUT
═══════════════════════════════════════════════════════════════ */
#app {
  display: flex;
  height: 100vh;
  transition: opacity .4s ease;
}

.app-hidden { opacity: 0; pointer-events: none; }
.app-visible { opacity: 1; pointer-events: all; }

/* ═══════════════════════════════════════════════════════════════
   SIDEBAR
═══════════════════════════════════════════════════════════════ */
.sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  height: 100vh;
  transition: width .25s ease, min-width .25s ease, transform .25s ease;
  overflow: hidden;
  flex-shrink: 0;
}

.sidebar.collapsed {
  width: 0;
  min-width: 0;
  border-right-color: transparent;
}

/* Sidebar Top */
.sidebar-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 14px 12px;
  border-bottom: 1px solid var(--border-soft);
  flex-shrink: 0;
}


.sidebar-toggle {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  transition: color .15s, background .15s;
  flex-shrink: 0;
}
.sidebar-toggle:hover { color: var(--text-secondary); background: var(--bg-hover); }

/* Sidebar reopen button (visible only when sidebar is collapsed) */
.sidebar-reopen {
  display: none;
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px;
  align-items: center;
  justify-content: center;
  transition: color .15s, background .15s, border-color .15s;
}
.sidebar-reopen:hover { color: var(--text-secondary); background: var(--bg-hover); border-color: var(--border-soft); }


/* Sidebar Nav */
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 6px 6px 0;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.sidebar-section-label {
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 6px 8px 4px;
}

.conv-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.conv-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 10px;
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 12px;
  letter-spacing: .01em;
  transition: background .15s, color .15s;
  white-space: nowrap;
  overflow: hidden;
}

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

.conv-item.active {
  background: var(--bg-active);
  color: var(--text-primary);
}

.conv-icon { flex-shrink: 0; opacity: .7; }

/* Sidebar Footer */
.sidebar-footer {
  padding: 10px;
  border-top: 1px solid var(--border-soft);
  flex-shrink: 0;
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius);
  cursor: default;
  transition: background .15s;
}
.sidebar-user:hover { background: var(--bg-hover); }

.sidebar-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-active);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 600;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.sidebar-user-info {
  display: flex;
  flex-direction: column;
  gap: 1px;
  overflow: hidden;
}

.sidebar-user-name {
  font-size: 12px;
  color: var(--text-primary);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-role {
  font-size: 10px;
  color: var(--text-muted);
}

/* ═══════════════════════════════════════════════════════════════
   MAIN AREA
═══════════════════════════════════════════════════════════════ */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  background: var(--bg-base);
}

/* Terminal Chrome (top bar) */
.terminal-chrome {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.terminal-dots {
  display: flex;
  gap: 6px;
  align-items: center;
}

.tdot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: block;
}
.tdot-red    { background: var(--dot-red); }
.tdot-yellow { background: var(--dot-yellow); }
.tdot-green  { background: var(--dot-green); }

.terminal-title {
  flex: 1;
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: .04em;
}

.terminal-hint {
  font-size: 11px;
  color: var(--text-dim);
  display: flex;
  gap: 4px;
  align-items: center;
}

kbd {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 5px;
  font-family: var(--font);
  font-size: 10px;
  color: var(--text-muted);
}

/* Language toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 3px 6px;
  flex-shrink: 0;
}

.lang-btn {
  background: none;
  border: none;
  font-family: var(--font);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: .06em;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px 5px;
  border-radius: 3px;
  transition: color .15s, background .15s;
}

.lang-btn:hover { color: var(--text-secondary); }

.lang-btn.active {
  color: var(--text-primary);
  background: var(--bg-active);
}

.lang-sep {
  font-size: 10px;
  color: var(--text-dim);
  user-select: none;
}

/* Chat Area */
.chat-area {
  flex: 1;
  overflow-y: auto;
  padding: 28px 0;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.chat-area::-webkit-scrollbar { width: 4px; }
.chat-area::-webkit-scrollbar-track { background: transparent; }
.chat-area::-webkit-scrollbar-thumb { background: var(--border); border-radius: 99px; }

/* Conversation wrapper (fade in/out) */
.conv-wrapper {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
  gap: 28px;
  animation: conv-in .3s ease;
}

@keyframes conv-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Messages */
.msg {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

/* User message */
.msg.user {
  flex-direction: row;
}

.msg-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
  flex-shrink: 0;
  margin-top: 2px;
}

.msg.user .msg-avatar {
  background: var(--bg-active);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.msg.ai .msg-avatar {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.msg-body {
  flex: 1;
  min-width: 0;
}

.msg-role {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: .04em;
  margin-bottom: 5px;
}

.msg.user .msg-role { color: var(--text-muted); }
.msg.ai  .msg-role  { color: var(--text-muted); }

.msg-content {
  color: var(--text-primary);
  line-height: 1.7;
}

.msg.user .msg-content {
  color: var(--text-secondary);
  font-size: 12.5px;
}

.msg.ai .msg-content {
  font-size: 13px;
}

/* Typing cursor inside message */
.typing-cursor {
  display: inline-block;
  width: 7px;
  height: 14px;
  background: var(--text-primary);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink-block .7s step-end infinite;
}

/* Claude avatar */
.claude-avatar {
  background: transparent !important;
  border: 1px solid var(--border) !important;
}

.claude-icon {
  color: var(--text-secondary);
  display: block;
}

/* Thinking indicator */
.thinking-row {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 12px;
  font-style: italic;
}

.thinking-phase {
  transition: opacity .13s ease;
}

.thinking-phase.phrase-fade {
  opacity: 0;
}

.thinking-dots span {
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-muted);
  margin: 0 1px;
  animation: think-dot .9s ease-in-out infinite;
}
.thinking-dots span:nth-child(2) { animation-delay: .15s; }
.thinking-dots span:nth-child(3) { animation-delay: .3s; }

@keyframes think-dot {
  0%,100% { opacity: .25; transform: scale(1); }
  50%      { opacity: 1;   transform: scale(1.3); }
}

/* Profile cards row */
.profile-cards-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

/* Photo card */
.photo-card {
  margin-top: 0;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-msg);
  padding: 16px;
  min-width: 180px;
}

.photo-frame {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--border);
  background: var(--bg-active);
  display: flex;
  align-items: center;
  justify-content: center;
}

.photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.photo-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 11px;
  text-align: center;
  padding: 12px;
}

.photo-placeholder svg { opacity: .4; }

.photo-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  text-align: center;
}

.photo-tag {
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
}

/* CV download card */
.cv-card {
  text-decoration: none;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  justify-content: center;
}

.cv-card:hover {
  border-color: var(--accent);
  background: var(--bg-active);
}

.cv-icon-wrap {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--bg-active);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  transition: border-color .15s;
}

.cv-card:hover .cv-icon-wrap {
  border-color: var(--accent);
}

.photo-socials {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin-top: 4px;
  width: 100%;
}

.social-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: 4px;
  text-decoration: none;
  color: var(--text-muted);
  font-size: 11px;
  transition: color .15s, border-color .15s, background .15s;
}

.social-btn:hover {
  color: var(--text-primary);
  border-color: var(--accent-soft);
  background: var(--bg-hover);
}

/* Skills grid */
.skills-grid {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 14px;
}

.skill-group-label {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 7px;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.skill-tag {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 10px;
  font-size: 11.5px;
  color: var(--text-secondary);
  transition: border-color .15s, color .15s;
}
.skill-tag:hover { border-color: var(--accent-soft); color: var(--text-primary); }

/* Experience timeline */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 14px;
  border-left: 1px solid var(--border);
  padding-left: 18px;
}

.timeline-item { position: relative; }

.timeline-item::before {
  content: '';
  position: absolute;
  left: -23px;
  top: 5px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
}

.timeline-period {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: .04em;
  margin-bottom: 3px;
}

.timeline-role {
  font-size: 13px;
  color: var(--text-primary);
  font-weight: 500;
}

.timeline-company {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.timeline-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Projects grid */
.projects-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 14px;
}

.project-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-msg);
  padding: 14px 16px;
  transition: border-color .2s;
}
.project-card:hover { border-color: var(--accent-soft); }

.project-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.project-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
}

.project-link {
  font-size: 11px;
  color: var(--text-muted);
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 2px 8px;
  transition: color .15s, border-color .15s;
}
.project-link:hover { color: var(--text-primary); border-color: var(--accent-soft); }

.project-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 10px;
}

.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.stack-tag {
  font-size: 10px;
  color: var(--text-muted);
  background: var(--bg-base);
  border: 1px solid var(--border-soft);
  border-radius: 3px;
  padding: 2px 7px;
}

/* Contact list */
.contact-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 12.5px;
  transition: border-color .15s, color .15s, background .15s;
}
.contact-item:hover { border-color: var(--accent-soft); color: var(--text-primary); background: var(--bg-hover); }

.contact-label { color: var(--text-muted); font-size: 11px; min-width: 70px; }

/* Inline code / keyword */
.kw {
  background: var(--bg-elevated);
  border: 1px solid var(--border-soft);
  border-radius: 3px;
  padding: 1px 5px;
  font-size: 12px;
  color: var(--accent);
}

/* Divider */
.msg-divider {
  border: none;
  border-top: 1px solid var(--border-soft);
  margin: 4px 0;
}

/* Input bar */
.input-bar {
  flex-shrink: 0;
  border-top: 1px solid var(--border);
  background: var(--bg-surface);
  padding: 10px 20px 8px;
  transition: opacity .25s ease, transform .25s ease;
}

.input-bar.input-hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(6px);
}

.input-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 9px 14px;
  transition: border-color .15s;
}
.input-inner:hover { border-color: var(--accent-soft); }

.prompt-char {
  color: var(--text-muted);
  font-size: 13px;
  flex-shrink: 0;
}

.fake-input {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 2px;
  min-height: 20px;
}

.fake-input-text {
  font-family: var(--font);
  font-size: 13px;
  color: var(--text-secondary);
}

.fake-cursor {
  display: inline-block;
  width: 7px;
  height: 15px;
  background: var(--text-primary);
  border-radius: 1px;
}

.blink { animation: blink-block .8s step-end infinite; }

.input-meta {
  display: flex;
  gap: 14px;
  margin-top: 6px;
  padding: 0 2px;
}

.input-meta span {
  font-size: 10.5px;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Education */
.cert-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 14px;
}

.cert-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
}

.cert-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 3px;
}

.cert-inst {
  font-size: 12px;
  color: var(--text-secondary);
}

.cert-year {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE — sidebar collapse on small screens
═══════════════════════════════════════════════════════════════ */
@media (max-width: 680px) {
  .sidebar { position: fixed; top: 0; left: 0; height: 100vh; z-index: 100; transform: translateX(-100%); transition: transform .25s ease; }
  .sidebar.mobile-open { transform: translateX(0); }
  .sidebar.collapsed { transform: translateX(-100%); }
  .terminal-hint { display: none; }
}