/* ─── CSS VARIABLES ─── */
:root {
  --bg:      #0d1117;
  --bg2:     #161b22;
  --bg3:     #21262d;
  --border:  #30363d;
  --green:   #39d353;
  --cyan:    #58a6ff;
  --yellow:  #e3b341;
  --purple:  #bc8cff;
  --white:   #e6edf3;
  --gray:    #8b949e;
  --gray2:   #6e7681;
  --comment: #3d4451;
  --shadow:  rgba(0, 0, 0, 0.6);
  --scanline: rgba(0, 0, 0, 0.03);
  --nav-hover: rgba(57, 211, 83, 0.06);
  --card-hover: rgba(88, 166, 255, 0.1);
}

body[data-theme='light'] {
  --bg:      #f5f7fb;
  --bg2:     #ffffff;
  --bg3:     #edf2f7;
  --border:  #cfd8e3;
  --green:   #1f9d55;
  --cyan:    #0b6bcb;
  --yellow:  #b7791f;
  --purple:  #805ad5;
  --white:   #18212f;
  --gray:    #4a5568;
  --gray2:   #718096;
  --comment: #7a8799;
  --shadow:  rgba(15, 23, 42, 0.14);
  --scanline: rgba(148, 163, 184, 0.12);
  --nav-hover: rgba(31, 157, 85, 0.08);
  --card-hover: rgba(11, 107, 203, 0.08);
}

/* ─── RESET ─── */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body,
body::before,
.nav-bar,
.nav-btn,
.theme-toggle,
.terminal-window,
.terminal-titlebar,
.terminal-body,
.titlebar-text,
.prompt-line span,
.output,
.comment,
.sec-header,
.info-key,
.info-colon,
.info-val,
.bio,
.skill-label,
.badge,
.card,
.card-header,
.card-title,
.card-sub,
.card-date,
.card-body,
.card-link,
.tech-tag,
.contact-item,
.contact-item .ci-label,
.contact-item .ci-val,
.cursor {
  transition:
    background-color 0.35s ease,
    color 0.35s ease,
    border-color 0.35s ease,
    box-shadow 0.35s ease,
    text-shadow 0.35s ease,
    opacity 0.35s ease;
}

/* ─── BASE ─── */
body {
  background: var(--bg);
  color: var(--white);
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  min-height: 100vh;
  overflow-x: hidden;
  overflow-y: auto;
}

/* ─── SCANLINE OVERLAY ─── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    var(--scanline) 2px,
    var(--scanline) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

/* ─── STICKY NAV ─── */
.nav-bar {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 10px 32px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--gray);
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  display: inline-block;
}

.nav-btn:hover,
.nav-btn.active {
  border-color: var(--green);
  color: var(--green);
  background: var(--nav-hover);
}

.theme-toggle {
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--yellow);
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
}

.theme-toggle:hover {
  border-color: var(--yellow);
  background: rgba(227, 179, 65, 0.08);
}

/* ─── TERMINAL WINDOW ─── */
.terminal-window {
  width: 100%;
  min-height: calc(100vh - 49px);
  margin: 0;
  border-radius: 0;
  overflow: hidden;
  border: 0;
  box-shadow: none;
}

.terminal-titlebar {
  background: var(--bg3);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border);
  user-select: none;
}

.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot-red    { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green  { background: #28c840; }
.dot-online { color: var(--green); }

.titlebar-text {
  flex: 1;
  text-align: center;
  font-size: 12px;
  color: var(--gray);
  letter-spacing: 0.5px;
}

/* ─── TERMINAL BODY ─── */
.terminal-body {
  background: var(--bg);
  padding: 28px 32px 40px;
  min-height: calc(100vh - 49px - 49px);
}

/* ─── SECTIONS ─── */
.section {
  margin-bottom: 48px;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.section.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── PROMPT LINE ─── */
.prompt-line {
  display: flex;
  align-items: center;
  font-size: 14px;
  margin-bottom: 4px;
  flex-wrap: wrap;
}

.ps-user   { color: var(--green);  font-weight: 700; }
.ps-at     { color: var(--gray2); }
.ps-host   { color: var(--cyan);   font-weight: 700; }
.ps-colon  { color: var(--gray2); }
.ps-path   { color: var(--purple); font-weight: 500; }
.ps-dollar { color: var(--gray);   margin-left: 6px; }
.ps-cmd    { color: var(--yellow); margin-left: 8px; font-weight: 500; }

/* ─── OUTPUT BLOCK ─── */
.output {
  margin-top: 14px;
  font-size: 13.5px;
  line-height: 1.8;
}

/* ─── ASCII ART ─── */
.ascii-art {
  color: var(--green);
  font-size: 11px;
  line-height: 1.3;
  white-space: pre;
  animation: glow 3s ease-in-out infinite alternate;
  transition: color 0.35s ease, text-shadow 0.35s ease;
}

@keyframes glow {
  from { text-shadow: 0 0 6px rgba(57, 211, 83, 0.3); }
  to   { text-shadow: 0 0 18px rgba(57, 211, 83, 0.7), 0 0 30px rgba(57, 211, 83, 0.3); }
}

/* ─── WHOAMI INFO GRID ─── */
.whoami-info {
  margin-top: 18px;
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 4px 0;
}

.info-key   { color: var(--cyan); }
.info-colon { color: var(--gray2); margin: 0 8px; }
.info-val   { color: var(--white); }
.info-val a { color: var(--cyan); text-decoration: none; }
.info-val a:hover { text-decoration: underline; color: var(--green); }

/* ─── BIO TEXT ─── */
.bio {
  margin-top: 18px;
  color: var(--gray);
  font-size: 13px;
  line-height: 1.8;
  max-width: 680px;
}

.home-actions {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.terminal-action {
  display: inline-block;
  color: var(--cyan);
  text-decoration: none;
  font-size: 12px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  background: var(--bg2);
  border-radius: 0;
  transition: all 0.2s;
}

.terminal-action::before {
  content: '> ';
  color: var(--green);
}

.terminal-action:hover {
  color: var(--green);
  border-color: var(--green);
  background: var(--nav-hover);
}

/* ─── COMMENT ─── */
.comment {
  color: var(--comment);
  font-size: 12.5px;
  margin: 6px 0 10px;
}

/* ─── SECTION HEADER ─── */
.sec-header {
  font-size: 13px;
  color: var(--yellow);
  font-weight: 700;
  border-bottom: 1px solid var(--border);
  padding-bottom: 6px;
  margin-bottom: 16px;
  letter-spacing: 1px;
}

/* ─── SKILL BADGES ─── */
.skill-group { margin-bottom: 14px; }

.skill-label {
  color: var(--gray);
  font-size: 12px;
  margin-bottom: 6px;
}

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

.badge {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--green);
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 12px;
  transition: all 0.2s;
  cursor: default;
}

.badge:hover {
  border-color: var(--green);
  background: rgba(57, 211, 83, 0.08);
  text-shadow: 0 0 8px rgba(57, 211, 83, 0.5);
}

.badge.blue            { color: var(--cyan);   border-color: #1f3a5f; }
.badge.blue:hover      { border-color: var(--cyan); background: rgba(88, 166, 255, 0.08); }

.badge.yellow          { color: var(--yellow); border-color: #3d3520; }
.badge.yellow:hover    { border-color: var(--yellow); background: rgba(227, 179, 65, 0.08); }

.badge.purple          { color: var(--purple); border-color: #2d1f4a; }
.badge.purple:hover    { border-color: var(--purple); background: rgba(188, 140, 255, 0.08); }

/* ─── CARDS ─── */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--green);
  border-radius: 6px;
  padding: 16px 20px;
  margin-bottom: 14px;
  transition: border-left-color 0.2s, background 0.2s;
}

.card:hover {
  border-left-color: var(--cyan);
  background: var(--bg3);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 6px;
}

.card-title { color: var(--white); font-weight: 700; font-size: 14px; }
.card-sub   { color: var(--cyan);  font-size: 13px;  margin-bottom: 4px; }

.card-date {
  color: var(--gray);
  font-size: 11px;
  background: var(--bg3);
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: 20px;
  white-space: nowrap;
}

.card-body {
  color: var(--gray);
  font-size: 12.5px;
  line-height: 1.7;
}

.card-body strong      { color: var(--white); }
.card-body li          { margin-left: 16px; margin-bottom: 2px; }
.card-body li::marker  { color: var(--green); }
.highlight-green       { color: var(--green); }

.card-links {
  margin-top: 10px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.card-link {
  color: var(--cyan);
  text-decoration: none;
  font-size: 12px;
  border: 1px solid var(--border);
  padding: 3px 10px;
  border-radius: 4px;
  transition: all 0.2s;
}

.card-link:hover {
  border-color: var(--cyan);
  background: var(--card-hover);
}

.card-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 10px;
}

.tech-tag {
  font-size: 11px;
  color: var(--purple);
  background: rgba(188, 140, 255, 0.08);
  border: 1px solid rgba(188, 140, 255, 0.2);
  padding: 2px 8px;
  border-radius: 3px;
}

/* PROJECTS AS TERMINAL PANELS */
#projects .card {
  background: transparent;
  border: 1px solid var(--border);
  border-left: 1px solid var(--border);
  border-radius: 0;
  padding: 14px 16px 16px;
  position: relative;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.02);
}

#projects .card::before {
  content: '> ./open_project';
  display: block;
  color: var(--green);
  font-size: 11px;
  margin-bottom: 10px;
}

#projects .card::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 34px;
  border-top: 1px dashed var(--border);
  pointer-events: none;
}

#projects .card:hover {
  background: rgba(255, 255, 255, 0.01);
  border-color: var(--green);
  border-left-color: var(--green);
}

#projects .card-header {
  position: relative;
  padding-top: 8px;
  margin-bottom: 10px;
}

#projects .card-title {
  color: var(--green);
  text-transform: lowercase;
  letter-spacing: 0.2px;
}

#projects .card-sub {
  color: var(--gray);
  font-size: 12px;
}

#projects .card-sub::before {
  content: 'desc: ';
  color: var(--cyan);
}

#projects .card-date {
  background: transparent;
  border: none;
  border-left: 1px solid var(--border);
  border-radius: 0;
  padding: 0 0 0 10px;
  color: var(--yellow);
}

#projects .card-date::before {
  content: 'modified ';
  color: var(--gray2);
}

#projects .card-body {
  position: relative;
  padding-left: 14px;
}

#projects .card-body::before {
  content: '|';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  color: var(--comment);
}

#projects .card-body li {
  list-style: none;
  margin-left: 0;
  margin-bottom: 6px;
  position: relative;
  padding-left: 18px;
}

#projects .card-body li::before {
  content: '-';
  position: absolute;
  left: 0;
  color: var(--green);
}

#projects .card-links {
  margin-top: 12px;
}

#projects .card-link {
  border-radius: 0;
  padding: 4px 10px;
}

#projects .card-tech {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--border);
}

#projects .tech-tag {
  color: var(--cyan);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 0;
}

/* EXPERIENCE AS TERMINAL PANEL */
#experience .card {
  background: transparent;
  border: 1px solid var(--border);
  border-left: 1px solid var(--border);
  border-radius: 0;
  padding: 14px 16px 16px;
  position: relative;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.02);
}

#experience .card::before {
  content: '> cat work_history.log';
  display: block;
  color: var(--green);
  font-size: 11px;
  margin-bottom: 10px;
}

#experience .card::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 34px;
  border-top: 1px dashed var(--border);
  pointer-events: none;
}

#experience .card:hover {
  background: rgba(255, 255, 255, 0.01);
  border-color: var(--green);
  border-left-color: var(--green);
}

#experience .card-header {
  position: relative;
  padding-top: 8px;
  margin-bottom: 10px;
}

#experience .card-title {
  color: var(--green);
  text-transform: lowercase;
  letter-spacing: 0.2px;
}

#experience .card-sub {
  color: var(--gray);
  font-size: 12px;
}

#experience .card-sub::before {
  content: 'org: ';
  color: var(--cyan);
}

#experience .card-date {
  background: transparent;
  border: none;
  border-left: 1px solid var(--border);
  border-radius: 0;
  padding: 0 0 0 10px;
  color: var(--yellow);
}

#experience .card-date::before {
  content: 'period ';
  color: var(--gray2);
}

#experience .card-body {
  position: relative;
  padding-left: 14px;
}

#experience .card-body::before {
  content: '|';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  color: var(--comment);
}

#experience .card-body li {
  list-style: none;
  margin-left: 0;
  margin-bottom: 6px;
  position: relative;
  padding-left: 18px;
}

#experience .card-body li::before {
  content: '-';
  position: absolute;
  left: 0;
  color: var(--green);
}

#experience .card-tech {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--border);
}

#experience .tech-tag {
  color: var(--cyan);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 0;
}

/* ─── CONTACT GRID ─── */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px;
}

.contact-item {
  background: var(--bg2);
  border: 1px solid var(--border);
  padding: 12px 16px;
  border-radius: 6px;
  transition: all 0.2s;
  text-decoration: none;
  display: block;
}

.contact-item:hover {
  border-color: var(--green);
  background: rgba(57, 211, 83, 0.05);
}

.contact-item .ci-label { color: var(--gray2); font-size: 11px; margin-bottom: 4px; }
.contact-item .ci-val   { color: var(--cyan);  font-size: 13px; font-weight: 500; }

/* ─── BLINKING CURSOR ─── */
.cursor {
  display: inline-block;
  width: 9px;
  height: 14px;
  background: var(--green);
  margin-left: 4px;
  vertical-align: middle;
  animation: blink 1s step-end infinite;
}

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

/* ─── RESPONSIVE ─── */
@media (max-width: 640px) {
  .terminal-window { min-height: calc(100vh - 45px); }
  .terminal-body   { padding: 18px 16px; }
  .nav-bar         { padding: 8px 16px; }
  .ascii-art       { font-size: 8px; }
  .whoami-info     { grid-template-columns: 1fr; }
  .theme-toggle    { margin-left: 0; }
}