/* ═══════════════════════════════════════════════════════════
   KazAndTheCompiler — Portfolio Root Styles
   OKAMI / BOKEH design language
   ═══════════════════════════════════════════════════════════ */

/* ── TOKENS ─────────────────────────────────────────────── */
:root {
  --bg:          #0c0d0b;
  --surface:     #131410;
  --surface-2:   #191b14;
  --border:      #2a2d22;
  --amber:       #c8b84a;
  --amber-dim:   #7a6f29;
  --amber-glow:  rgba(200, 184, 74, 0.12);
  --text:        #e8e6dc;
  --muted:       #7a7868;
  --mono:        'Share Tech Mono', monospace;
  --sans:        'DM Sans', sans-serif;

  /* category accent colours */
  --cat-sim:     #00e060;
  --cat-client:  #c8b84a;
  --cat-interact:#a78bfa;
  --cat-design:  #38bdf8;
  --cat-bot:     #fb923c;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── SCANLINE OVERLAY ────────────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    transparent, transparent 3px,
    rgba(0,0,0,0.06) 3px, rgba(0,0,0,0.06) 4px
  );
  pointer-events: none;
  z-index: 200;
}

/* ── HERO CANVAS ─────────────────────────────────────────── */
#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.7;
}

/* ── NAV ─────────────────────────────────────────────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.1rem 2.5rem;
  border-bottom: 1px solid var(--border);
  background: rgba(12, 13, 11, 0.92);
  backdrop-filter: blur(10px);
  z-index: 100;
}

.nav-logo {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--amber);
  letter-spacing: 0.08em;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--amber); }

/* ── HERO ─────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8rem 2.5rem 4rem;
  max-width: 900px;
  position: relative;
  overflow: hidden;
}

.hero-tag {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--amber);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.6s ease forwards 0.2s;
}

.hero h1 {
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.6s ease forwards 0.4s;
}

.hero h1 em {
  font-style: normal;
  color: var(--amber);
}

.hero-sub {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 520px;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.6s ease forwards 0.6s;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.6s ease forwards 0.8s;
}

.hero-cta {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.65rem 1.4rem;
  transition: background 0.2s, color 0.2s;
}

.hero-cta--primary {
  color: var(--amber);
  border: 1px solid var(--amber-dim);
}
.hero-cta--primary:hover {
  background: var(--amber);
  color: var(--bg);
}

.hero-cta--secondary {
  color: var(--muted);
  border: 1px solid var(--border);
}
.hero-cta--secondary:hover {
  color: var(--amber);
  border-color: var(--amber-dim);
}

/* bearing line decoration */
.hero::after {
  content: '';
  position: absolute;
  right: -40px;
  top: 50%;
  width: 340px;
  height: 1px;
  background: linear-gradient(to right, var(--amber-dim), transparent);
  transform: rotate(-22deg);
  opacity: 0.4;
  z-index: 1;
}

/* ── SECTIONS ────────────────────────────────────────────── */
section {
  padding: 5rem 2.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--amber);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.section-label::after {
  content: '';
  flex: 1;
  max-width: 120px;
  height: 1px;
  background: var(--border);
}

/* ── FILTER BAR ──────────────────────────────────────────── */
.filter-bar {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.filter-btn {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.filter-btn:hover {
  color: var(--amber);
  border-color: var(--amber-dim);
}

.filter-btn.active {
  color: var(--amber);
  border-color: var(--amber);
  background: var(--amber-glow);
}

/* ── PROJECT GRID ────────────────────────────────────────── */
.projects {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 1.5px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  transition: border-color 0.25s, background 0.25s;
}

.card:not(.card--locked):hover {
  border-color: var(--amber-dim);
  background: var(--surface-2);
}

.card:not(.card--locked):hover .card-arrow { transform: translate(3px, -3px); color: var(--amber); }

.card--locked { opacity: 0.4; cursor: default; pointer-events: none; }

/* card preview strip — category visual identity */
.card-preview {
  height: 72px;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

/* Simulation — phosphor green radar pulse */
.card[data-cat="simulation"] .card-preview {
  background: #010a04;
}
.card[data-cat="simulation"] .card-preview::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 50% 80%, rgba(0,224,96,0.18) 0%, transparent 55%),
    repeating-linear-gradient(0deg, transparent, transparent 5px, rgba(0,224,96,0.03) 5px, rgba(0,224,96,0.03) 6px);
  animation: sim-pulse 3s ease-in-out infinite;
}
.card[data-cat="simulation"] .card-preview::after {
  content: '';
  position: absolute;
  left: 50%; top: 80%;
  width: 1px;
  height: 50px;
  background: linear-gradient(to top, rgba(0,224,96,0.6), transparent);
  transform-origin: bottom center;
  animation: radar-sweep 3s linear infinite;
}
@keyframes sim-pulse { 0%,100%{opacity:.6} 50%{opacity:1} }
@keyframes radar-sweep { from{transform:rotate(0deg)} to{transform:rotate(360deg)} }

/* Client — warm amber glow */
.card[data-cat="client"] .card-preview {
  background: #0e0c06;
}
.card[data-cat="client"] .card-preview::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 100%, rgba(200,184,74,0.2) 0%, transparent 65%);
  animation: client-glow 4s ease-in-out infinite;
}
@keyframes client-glow { 0%,100%{opacity:.7} 50%{opacity:1} }

/* Interactive — deep purple nebula */
.card[data-cat="interactive"] .card-preview {
  background: #070710;
}
.card[data-cat="interactive"] .card-preview::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 60%, rgba(167,139,250,0.2) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 40%, rgba(56,189,248,0.1) 0%, transparent 50%);
  animation: nebula-drift 5s ease-in-out infinite alternate;
}
@keyframes nebula-drift { from{opacity:.6} to{opacity:1} }

/* Design — sky blue shimmer */
.card[data-cat="design"] .card-preview {
  background: #060d14;
}
.card[data-cat="design"] .card-preview::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(56,189,248,0.12) 0%, transparent 50%, rgba(56,189,248,0.06) 100%);
  animation: design-shimmer 4s ease-in-out infinite alternate;
}
@keyframes design-shimmer { from{opacity:.5;transform:translateX(-5px)} to{opacity:1;transform:translateX(5px)} }

/* Bot / Template — orange ember */
.card[data-cat="bot"] .card-preview,
.card[data-cat="template"] .card-preview {
  background: #0e0803;
}
.card[data-cat="bot"] .card-preview::before,
.card[data-cat="template"] .card-preview::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 100%, rgba(251,146,60,0.18) 0%, transparent 60%);
  animation: ember-glow 3.5s ease-in-out infinite;
}
@keyframes ember-glow { 0%,100%{opacity:.6} 50%{opacity:1} }

/* card body */
.card-body { padding: 1.8rem; flex: 1; display: flex; flex-direction: column; }

.card-type {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 0.9rem;
}
.card[data-cat="simulation"]  .card-type { color: var(--cat-sim); }
.card[data-cat="client"]      .card-type { color: var(--cat-client); }
.card[data-cat="interactive"] .card-type { color: var(--cat-interact); }
.card[data-cat="design"]      .card-type { color: var(--cat-design); }
.card[data-cat="bot"]         .card-type { color: var(--cat-bot); }
.card[data-cat="template"]    .card-type { color: var(--cat-bot); }

.card h2 {
  font-size: 1.15rem;
  font-weight: 400;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.card-desc {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 1.4rem;
  flex: 1;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.tag {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  padding: 0.18rem 0.5rem;
  border: 1px solid var(--border);
  color: var(--muted);
  text-transform: uppercase;
}

.card-arrow {
  position: absolute;
  top: 85px; right: 1.5rem;
  font-size: 0.85rem;
  color: var(--border);
  transition: transform 0.2s, color 0.2s;
}

.card-lock {
  position: absolute;
  top: 85px; right: 1.5rem;
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--muted);
  letter-spacing: 0.1em;
}

/* hidden by filter */
.card[hidden] { display: none !important; }

/* ── BOT DEMO SECTION ────────────────────────────────────── */
#bot-demo {
  padding: 5rem 2.5rem;
  max-width: 1100px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
}

.bot-explainer {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.bot-explainer h3 {
  font-size: 1.5rem;
  font-weight: 300;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.bot-explainer p {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 0.8rem;
}

.bot-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.bot-features li {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.bot-features li::before {
  content: '▸';
  color: var(--cat-bot);
  flex-shrink: 0;
}

.bot-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.bot-tech-tag {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--border);
  color: var(--cat-bot);
  text-transform: uppercase;
}

.bot-cta {
  display: inline-block;
  margin-top: 2rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cat-bot);
  border: 1px solid rgba(251,146,60,0.4);
  padding: 0.6rem 1.2rem;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
  cursor: pointer;
  background: transparent;
}

.bot-cta:hover {
  background: var(--cat-bot);
  color: var(--bg);
}

/* ── ABOUT ───────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.about-grid h3 {
  font-size: 1.5rem;
  font-weight: 300;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.about-grid p {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 0.9rem;
}

.stat-row {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.stat {
  border-left: 1px solid var(--amber-dim);
  padding-left: 1.2rem;
}

.stat-num {
  font-family: var(--mono);
  font-size: 1.5rem;
  color: var(--amber);
  line-height: 1;
  margin-bottom: 0.2rem;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

/* ── CONTACT ─────────────────────────────────────────────── */
.contact {
  border-top: 1px solid var(--border);
  padding: 4rem 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.contact-text h3 {
  font-size: 1.4rem;
  font-weight: 300;
  margin-bottom: 0.3rem;
}

.contact-text p { font-size: 0.85rem; color: var(--muted); }

.contact-links { display: flex; gap: 1rem; flex-wrap: wrap; }

.contact-links a {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--border);
  padding: 0.5rem 1rem;
  transition: color 0.2s, border-color 0.2s;
}

.contact-links a:hover { color: var(--amber); border-color: var(--amber-dim); }

/* ── FOOTER ──────────────────────────────────────────────── */
footer {
  padding: 1.5rem 2.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

footer p {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--muted);
  letter-spacing: 0.1em;
}

/* ── ANIMATIONS ──────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

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

/* ── CHAT WIDGET ─────────────────────────────────────────── */
#kaz-widget {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  font-family: var(--mono);
}

.kw-btn {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--amber);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 0 0 rgba(200,184,74,0.4);
  animation: widget-pulse 2.5s ease-in-out infinite;
  transition: background 0.2s, transform 0.2s;
  position: relative;
  z-index: 2;
}

.kw-btn:hover { transform: scale(1.08); }
.kw-btn.open { animation: none; background: var(--surface-2); box-shadow: 0 0 0 1px var(--border); }

.kw-btn svg { fill: var(--bg); transition: fill 0.2s; }
.kw-btn.open svg { fill: var(--muted); }

@keyframes widget-pulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(200,184,74,0.5); }
  50%      { box-shadow: 0 0 0 10px rgba(200,184,74,0); }
}

.kw-panel {
  position: absolute;
  bottom: 64px;
  right: 0;
  width: 320px;
  background: var(--surface);
  border: 1px solid var(--amber-dim);
  display: flex;
  flex-direction: column;
  transform-origin: bottom right;
  transform: scale(0.92) translateY(8px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.2s ease, opacity 0.2s ease;
  overflow: hidden;
}

.kw-panel.open {
  transform: scale(1) translateY(0);
  opacity: 1;
  pointer-events: all;
}

.kw-header {
  padding: 0.9rem 1.1rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--surface-2);
}

.kw-header-title {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--amber);
  text-transform: uppercase;
}

.kw-header-status {
  font-size: 0.6rem;
  color: var(--cat-bot);
  letter-spacing: 0.1em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.kw-header-status::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cat-bot);
  display: inline-block;
}

.kw-messages {
  height: 280px;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.kw-msg {
  max-width: 85%;
  padding: 0.6rem 0.85rem;
  font-size: 0.75rem;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

.kw-msg--bot {
  background: rgba(42,45,34,0.6);
  border-left: 2px solid var(--amber-dim);
  color: var(--text);
  align-self: flex-start;
}

.kw-msg--user {
  background: rgba(200,184,74,0.08);
  border-right: 2px solid var(--amber);
  color: var(--amber);
  align-self: flex-end;
  text-align: right;
}

.kw-typing {
  display: flex;
  gap: 4px;
  padding: 0.6rem 0.85rem;
  align-self: flex-start;
  background: rgba(42,45,34,0.6);
  border-left: 2px solid var(--amber-dim);
}

.kw-typing span {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--muted);
  animation: typing-dot 1.2s ease-in-out infinite;
}

.kw-typing span:nth-child(2) { animation-delay: 0.2s; }
.kw-typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing-dot {
  0%,80%,100% { opacity: 0.3; transform: translateY(0); }
  40%          { opacity: 1;   transform: translateY(-4px); }
}

.kw-form {
  display: flex;
  border-top: 1px solid var(--border);
}

.kw-input {
  flex: 1;
  background: transparent;
  border: none;
  padding: 0.75rem 1rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text);
  letter-spacing: 0.05em;
  outline: none;
}

.kw-input::placeholder { color: var(--muted); }

.kw-send {
  background: transparent;
  border: none;
  border-left: 1px solid var(--border);
  padding: 0 0.9rem;
  color: var(--amber-dim);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.9rem;
  transition: color 0.2s, background 0.2s;
}

.kw-send:hover { color: var(--amber); background: var(--amber-glow); }

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 700px) {
  nav { padding: 1rem 1.2rem; }
  .nav-links { gap: 1.2rem; }
  .hero { padding: 7rem 1.2rem 3rem; }
  section { padding: 3.5rem 1.2rem; }
  #bot-demo { padding: 3.5rem 1.2rem; }
  .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .bot-explainer { grid-template-columns: 1fr; gap: 2rem; }
  .contact { padding: 3rem 1.2rem; flex-direction: column; align-items: flex-start; }
  footer { padding: 1.2rem; flex-direction: column; align-items: flex-start; }
  .kw-panel { width: calc(100vw - 48px); right: 0; }
}