/* ==========================================================================
   Dr_Animalis.DEV — design tokens
   Palette: near-black surface, violet + cyan signal, warm amber for status
   Type: Space Grotesk (display) / Inter (body) / JetBrains Mono (terminal)
   ========================================================================== */

:root {
  /* surfaces */
  --bg: #0a0a0d;
  --bg-soft: #0f0f13;
  --surface: #131318;
  --surface-2: #1a1a21;
  --border: #26262f;
  --border-soft: #1c1c23;

  /* text */
  --text-primary: #eceef2;
  --text-secondary: #9a9aa8;
  --text-tertiary: #63636f;

  /* signal colors */
  --accent: #7c6cf0;      /* violet — primary signal */
  --accent-soft: #7c6cf022;
  --accent-2: #4fd8c4;    /* cyan — secondary signal */
  --accent-2-soft: #4fd8c422;
  --warn: #f0b84f;        /* amber — status/online dot */
  --danger: #f0616c;

  /* type */
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;

  /* layout */
  --max-w: 1120px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6.5rem;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---------------------------------- reset -------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4 { margin: 0; font-family: var(--font-display); font-weight: 600; letter-spacing: -0.02em; }
p { margin: 0; }
button { font: inherit; cursor: pointer; }

::selection { background: var(--accent); color: #0a0a0d; }

/* focus visibility */
a:focus-visible,
button:focus-visible,
.nav-link:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 3px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ------------------------------- background ------------------------------ */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    radial-gradient(circle at 1.5px 1.5px, rgba(255,255,255,0.055) 1.5px, transparent 0);
  background-size: 34px 34px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 90%);
}
.bg-glow {
  position: fixed;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(600px circle at 15% 10%, var(--accent-soft), transparent 60%),
    radial-gradient(500px circle at 85% 30%, var(--accent-2-soft), transparent 60%);
}

/* --------------------------------- layout -------------------------------- */
.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-3);
}
section { padding: var(--space-6) 0; position: relative; }
.section-head { margin-bottom: var(--space-4); }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-2);
  letter-spacing: 0.06em;
  margin-bottom: var(--space-2);
}
.eyebrow::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 8px var(--accent-2); }
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
}
.section-sub {
  color: var(--text-secondary);
  margin-top: var(--space-1);
  max-width: 46ch;
}

/* ---------------------------------- nav ---------------------------------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
}
.nav.scrolled {
  background: rgba(10, 10, 13, 0.78);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--border-soft);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-3);
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.98rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 2px;
}
.logo .dot { color: var(--accent-2); }
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.nav-link {
  position: relative;
  font-size: 0.92rem;
  color: var(--text-secondary);
  padding: 6px 2px;
  transition: color 0.2s var(--ease);
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--accent-2);
  transition: right 0.25s var(--ease);
}
.nav-link:hover { color: var(--text-primary); }
.nav-link:hover::after { right: 0; }

.status-pill {
  display: flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--surface);
}
.status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--warn);
  box-shadow: 0 0 8px var(--warn);
  animation: pulse 2.4s var(--ease) infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.82); }
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}
.nav-toggle svg { width: 18px; height: 18px; }

.mobile-menu {
  position: fixed;
  inset: 68px 0 0 0;
  z-index: 99;
  background: rgba(10, 10, 13, 0.98);
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  padding: var(--space-4) var(--space-3);
  gap: var(--space-2);
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
}
.mobile-menu.open { opacity: 1; transform: translateY(0); pointer-events: auto; }
.mobile-menu .nav-link { font-size: 1.2rem; padding: 0.6rem 0; border-bottom: 1px solid var(--border-soft); color: var(--text-primary); }

/* --------------------------------- hero ---------------------------------- */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: 100px;
  padding-bottom: var(--space-5);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--space-5);
  align-items: center;
}
.hero-label {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-2);
  margin-bottom: var(--space-2);
  display: inline-block;
}
.hero-label::before { content: '> '; color: var(--text-tertiary); }
.hero-title {
  font-size: clamp(2.4rem, 5.6vw, 4.1rem);
  line-height: 1.06;
}
.hero-title .accent { color: var(--accent); }
.hero-sub {
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  color: var(--text-secondary);
  margin-top: var(--space-2);
  font-weight: 500;
}
.hero-desc {
  color: var(--text-secondary);
  margin-top: var(--space-2);
  max-width: 46ch;
  font-size: 1rem;
}
.hero-cta {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-4);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.85em 1.5em;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 500;
  border: 1px solid transparent;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--accent);
  color: #0a0a0d;
}
.btn-primary:hover { box-shadow: 0 0 0 1px var(--accent), 0 8px 24px -8px var(--accent); transform: translateY(-2px); }
.btn-ghost {
  border-color: var(--border);
  color: var(--text-primary);
  background: var(--surface);
}
.btn-ghost:hover { border-color: var(--accent-2); color: var(--accent-2); transform: translateY(-2px); }

/* terminal window */
.terminal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 30px 60px -30px rgba(0,0,0,0.6);
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-soft);
  background: var(--surface-2);
}
.terminal-dot { width: 10px; height: 10px; border-radius: 50%; }
.terminal-dot.r { background: #f0616c; }
.terminal-dot.y { background: #f0b84f; }
.terminal-dot.g { background: #4fd8a0; }
.terminal-title {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-tertiary);
}
.terminal-body {
  padding: var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-secondary);
  min-height: 220px;
}
.terminal-body .prompt { color: var(--accent-2); }
.terminal-body .out { color: var(--text-primary); }
.terminal-body .muted { color: var(--text-tertiary); }
.terminal-line { margin-bottom: 0.6em; white-space: pre-wrap; }
.cursor {
  display: inline-block;
  width: 8px;
  height: 1em;
  background: var(--accent-2);
  vertical-align: text-bottom;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* --------------------------------- about --------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-5);
  align-items: start;
}
.about-text p { color: var(--text-secondary); margin-bottom: var(--space-2); max-width: 58ch; }
.about-text p:last-child { margin-bottom: 0; }
.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5em;
  margin-top: var(--space-3);
}
.tag {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 5px 11px;
  border-radius: 999px;
  background: var(--surface);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.tag:hover { border-color: var(--accent-2); color: var(--accent-2); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

/* -------------------------------- projects -------------------------------- */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-3);
}
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
  position: relative;
  overflow: hidden;
}
.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-soft), transparent 55%);
  opacity: 0;
  transition: opacity 0.3s var(--ease);
  pointer-events: none;
}
.project-card:hover {
  transform: translateY(-5px);
  border-color: var(--border, #333);
  box-shadow: 0 24px 40px -24px rgba(0,0,0,0.55);
}
.project-card:hover::before { opacity: 1; }
.project-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-2);
}
.project-name { font-size: 1.12rem; }
.project-index {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-tertiary);
}
.project-desc { color: var(--text-secondary); font-size: 0.92rem; flex-grow: 1; }
.project-tags { display: flex; flex-wrap: wrap; gap: 0.4em; }
.project-tags .tag { font-size: 0.7rem; padding: 3px 9px; }
.project-links { display: flex; gap: var(--space-2); margin-top: 0.25em; }
.project-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-2);
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s var(--ease);
}
.project-link:hover { border-color: var(--accent-2); }

/* --------------------------------- skills --------------------------------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}
.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.skill-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.skill-cat {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--accent-2);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2);
  display: block;
}
.skill-list li {
  padding: 6px 0;
  color: var(--text-primary);
  font-size: 0.92rem;
  border-top: 1px solid var(--border-soft);
}
.skill-list li:first-child { border-top: none; }

/* --------------------------------- stats --------------------------------- */
.stats-wrap { display: flex; justify-content: center; }
.stats-card {
  font-family: var(--font-mono);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  width: 100%;
  max-width: 460px;
}
.stats-title {
  font-size: 0.78rem;
  color: var(--accent-2);
  letter-spacing: 0.08em;
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-2);
  border-bottom: 1px dashed var(--border);
}
.stat-row {
  display: flex;
  justify-content: space-between;
  padding: 7px 0;
  font-size: 0.9rem;
}
.stat-row .k { color: var(--text-secondary); }
.stat-row .v { color: var(--text-primary); font-weight: 500; }
.stat-row .v.building { color: var(--warn); }

/* --------------------------------- contact --------------------------------- */
.contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.contact-card::after {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  background: radial-gradient(circle, var(--accent-soft), transparent 65%);
  top: -220px; right: -180px;
  pointer-events: none;
}
.contact-title { font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: var(--space-2); }
.contact-desc { color: var(--text-secondary); max-width: 44ch; margin: 0 auto var(--space-4); }
.contact-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.contact-link {
  display: flex;
  align-items: center;
  gap: 0.6em;
  padding: 0.75em 1.4em;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  background: var(--bg-soft);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease), color 0.2s var(--ease);
}
.contact-link:hover { border-color: var(--accent-2); color: var(--accent-2); transform: translateY(-2px); }

/* --------------------------------- footer --------------------------------- */
.footer {
  border-top: 1px solid var(--border-soft);
  padding: var(--space-4) 0 var(--space-5);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.footer-copy { font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-tertiary); }
.footer-tag { color: var(--text-tertiary); font-size: 0.85rem; margin-top: 4px; }
.footer-links { display: flex; gap: var(--space-3); }
.footer-links a { font-family: var(--font-mono); font-size: 0.82rem; color: var(--text-secondary); transition: color 0.2s var(--ease); }
.footer-links a:hover { color: var(--accent-2); }
.footer-exit { font-family: var(--font-mono); color: var(--text-tertiary); font-size: 0.8rem; margin-top: var(--space-3); }

/* -------------------------------- reveal on scroll -------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.in { opacity: 1; transform: translateY(0); }

/* ----------------------------------- 404 ----------------------------------- */
.error-page {
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3);
}
.error-frame {
  width: 100%;
  max-width: 560px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 40px 80px -40px rgba(0,0,0,0.7);
}
.error-body {
  padding: var(--space-5) var(--space-4);
  text-align: center;
}
.error-code {
  font-family: var(--font-display);
  font-size: clamp(3rem, 12vw, 4.5rem);
  color: var(--accent);
  line-height: 1;
  text-shadow: 0 0 40px var(--accent-soft);
}
.error-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--text-tertiary);
  margin-top: var(--space-1);
}
.error-terminal {
  margin-top: var(--space-4);
  text-align: left;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  background: var(--bg-soft);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
  color: var(--text-secondary);
}
.error-terminal .prompt { color: var(--accent-2); }
.error-terminal .line { margin-bottom: 0.5em; }
.error-terminal .line:last-child { margin-bottom: 0; }
.error-cta { margin-top: var(--space-4); }

/* ------------------------------------ responsive ------------------------------------ */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: var(--space-4); }
  .about-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  section { padding: var(--space-5) 0; }
}
@media (max-width: 520px) {
  .skills-grid { grid-template-columns: 1fr; }
  .status-pill span.label { display: none; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}