/* ───────── Terminal Portfolio · base system ───────── */

:root {
  /* dark / phosphor */
  --bg:           #07090a;
  --bg-2:         #0c1011;
  --panel:        #0e1314;
  --panel-2:      #131a1c;
  --border:       #1c2426;
  --border-2:     #2a3539;
  --fg:           #c9d2cb;
  --fg-dim:       #7d8a83;
  --fg-mute:      #4d5751;
  --accent:       #6cf09a;        /* phosphor green */
  --accent-soft:  #6cf09a22;
  --accent-glow:  #6cf09a44;
  --amber:        #f5c451;
  --cyan:         #6ad0f0;
  --magenta:      #e08fc5;
  --red:          #f47272;
  --scan:         rgba(108,240,154,0.025);
  --grid:         rgba(108,240,154,0.05);
  --shadow:       0 24px 80px -20px #000;
}

:root[data-theme="light"] {
  --bg:           #f3efe2;
  --bg-2:         #ede8d6;
  --panel:        #ece6d2;
  --panel-2:      #e2dcc6;
  --border:       #c9c0a3;
  --border-2:     #b3a988;
  --fg:           #1a1f1a;
  --fg-dim:       #5b5f54;
  --fg-mute:      #8c8e7e;
  --accent:       #176b3a;
  --accent-soft:  #176b3a18;
  --accent-glow:  #176b3a33;
  --amber:        #a26800;
  --cyan:         #1e6f8f;
  --magenta:      #8a3e6f;
  --red:          #a23838;
  --scan:         rgba(23,107,58,0.025);
  --grid:         rgba(23,107,58,0.06);
  --shadow:       0 24px 80px -20px rgba(0,0,0,.18);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 14px;
  line-height: 1.55;
  font-feature-settings: 'ss01', 'ss02', 'calt', 'liga';
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* Subtle grid backdrop + scanlines */
body::before {
  content: "";
  position: fixed; inset: 0;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 30%, transparent 80%);
  pointer-events: none;
  z-index: 0;
}
body::after {
  content: "";
  position: fixed; inset: 0;
  background: repeating-linear-gradient(
    0deg,
    var(--scan) 0,
    var(--scan) 1px,
    transparent 1px,
    transparent 3px
  );
  pointer-events: none;
  z-index: 1;
  mix-blend-mode: screen;
}
:root[data-theme="light"] body::after { mix-blend-mode: multiply; }

/* ───────── Top bar / window chrome ───────── */

.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 18px;
  background: color-mix(in oklab, var(--bg) 88%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
}
.topbar .lights { display: flex; gap: 8px; }
.topbar .lights span {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--border-2); border: 1px solid var(--border);
}
.topbar .path {
  color: var(--fg-dim);
  letter-spacing: 0.02em;
  flex: 1; text-align: center;
}
.topbar .path b { color: var(--fg); font-weight: 500; }
.topbar .actions { display: flex; align-items: center; gap: 14px; }
.topbar .actions button {
  background: transparent; border: 1px solid var(--border);
  color: var(--fg-dim); padding: 5px 10px; border-radius: 4px;
  font-family: inherit; font-size: 11px; cursor: pointer;
  letter-spacing: 0.04em;
}
.topbar .actions button:hover { color: var(--accent); border-color: var(--accent); }
.topbar .actions .blink {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: 0.35; } }

/* ───────── Layout ───────── */

.stage {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 40px 28px 80px;
}

.col-2 {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 24px;
  align-items: stretch;
}
@media (max-width: 940px) {
  .col-2 { grid-template-columns: 1fr; }
}

/* ───────── "Window" panel ───────── */

.win {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex; flex-direction: column;
}
.win .win-hd {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px;
  background: var(--panel-2);
  border-bottom: 1px solid var(--border);
  font-size: 11px;
  color: var(--fg-dim);
  letter-spacing: 0.04em;
}
.win .win-hd .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent-glow);
}
.win .win-hd .tab {
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--fg);
}
.win .win-hd .spacer { flex: 1; }
.win .win-hd .meta { color: var(--fg-mute); }
.win .win-bd {
  padding: 18px 20px;
  flex: 1;
  min-height: 0;
}

/* ───────── Type / accents ───────── */

.tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 8px;
  border: 1px solid var(--border);
  border-radius: 3px;
  font-size: 11px;
  color: var(--fg-dim);
}
.tag.on  { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }
.tag.am  { color: var(--amber); border-color: var(--amber); }
.tag.cy  { color: var(--cyan);  border-color: var(--cyan); }

.kbd {
  display: inline-block;
  padding: 1px 6px;
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 3px;
  font-size: 10.5px;
  color: var(--fg-dim);
  background: var(--bg-2);
}

.muted { color: var(--fg-dim); }
.dim   { color: var(--fg-mute); }
.acc   { color: var(--accent); }
.am    { color: var(--amber); }
.cy    { color: var(--cyan); }
.mg    { color: var(--magenta); }

.h-cmd { color: var(--accent); font-weight: 600; }
.h-flag { color: var(--amber); }
.h-str { color: var(--cyan); }
.h-com { color: var(--fg-mute); font-style: italic; }

a { color: var(--accent); text-decoration: none; border-bottom: 1px dotted var(--accent-glow); }
a:hover { border-bottom-style: solid; }

/* prompt cursor */
.cursor {
  display: inline-block;
  width: 0.55em; height: 1.05em;
  background: var(--accent);
  vertical-align: text-bottom;
  margin-left: 2px;
  animation: blink 1s steps(1) infinite;
  box-shadow: 0 0 8px var(--accent-glow);
}
@keyframes blink { 50% { opacity: 0; } }

.prompt::before {
  content: "❯";
  color: var(--accent);
  margin-right: 8px;
}

/* ───────── Hero specifics ───────── */

.hero-banner {
  font-size: 11px;
  line-height: 1.2;
  color: var(--accent);
  white-space: pre;
  text-shadow: 0 0 12px var(--accent-glow);
  margin: 0 0 14px;
  overflow-x: auto;
}
.hero-banner.light { color: var(--accent); text-shadow: none; }

.hero-name {
  font-size: clamp(28px, 4.4vw, 44px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 18px 0 6px;
  color: var(--fg);
}
.hero-name b { color: var(--accent); font-weight: 600; }
.hero-sub {
  font-size: 14px;
  color: var(--fg-dim);
  margin-bottom: 18px;
}
.hero-sub .sep { color: var(--fg-mute); padding: 0 8px; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.chip {
  appearance: none;
  font-family: inherit; font-size: 12px;
  padding: 6px 10px;
  background: var(--bg-2);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 3px;
  cursor: pointer;
  transition: all 120ms ease;
}
.chip:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }
.chip .k { color: var(--fg-mute); margin-right: 6px; }

/* terminal log lines */
.tlog { font-size: 13px; line-height: 1.7; }
.tlog .line { display: block; }
.tlog .ts { color: var(--fg-mute); margin-right: 10px; }

/* ─── RAG pipeline ─── */

.rag-stage {
  cursor: pointer;
  transition: filter 200ms ease;
}
.rag-stage.active rect {
  filter: drop-shadow(0 0 6px var(--accent-glow));
}
.rag-stage:hover rect { stroke: var(--accent); }
.rag-stage text { user-select: none; }

.rag-input {
  width: 100%;
  font-family: inherit;
  font-size: 13px;
  background: var(--bg-2);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 9px 12px;
}
.rag-input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

.btn {
  appearance: none;
  font-family: inherit; font-size: 12px;
  padding: 8px 14px;
  background: var(--accent);
  color: var(--bg);
  border: 1px solid var(--accent);
  border-radius: 3px;
  cursor: pointer;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.btn:hover { filter: brightness(1.1); box-shadow: 0 0 18px var(--accent-glow); }
.btn.ghost {
  background: transparent; color: var(--fg-dim);
  border-color: var(--border);
  font-weight: 400;
}
.btn.ghost:hover { color: var(--accent); border-color: var(--accent); box-shadow: none; }

/* stack grid */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.stack-cell {
  background: var(--panel);
  padding: 11px 12px;
  font-size: 12px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 8px;
}
.stack-cell .nm { color: var(--fg); }
.stack-cell .lvl { color: var(--accent); font-size: 10px; letter-spacing: 0.05em; }
.stack-cell .cat { color: var(--fg-mute); font-size: 10px; letter-spacing: 0.05em; }

.kvs { display: grid; grid-template-columns: max-content 1fr; gap: 6px 18px; font-size: 13px; }
.kvs dt { color: var(--fg-mute); }
.kvs dd { margin: 0; color: var(--fg); }

/* section header */
.sec-h {
  display: flex; align-items: baseline; gap: 12px;
  margin: 64px 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--border);
}
.sec-h .id { color: var(--fg-mute); font-size: 11px; letter-spacing: 0.1em; }
.sec-h .ti { color: var(--fg); font-size: 18px; }
.sec-h .ti b { color: var(--accent); font-weight: 500; }

/* feedback loop pulse */
@keyframes flow-dash {
  to { stroke-dashoffset: -200; }
}
@keyframes glow-loop {
  0%,100% { opacity: 0.35; }
  50%     { opacity: 1; }
}

.rag-flow {
  stroke-dasharray: 5 7;
  animation: flow-dash 4s linear infinite;
}

/* helper: typewriter caret-less line entry */
.t-in { opacity: 0; animation: tin 360ms ease both; }
@keyframes tin {
  from { opacity: 0; transform: translateY(2px); }
  to { opacity: 1; transform: translateY(0); }
}

/* contact row */
.contact-row {
  display: flex; flex-wrap: wrap; gap: 12px 18px;
  font-size: 13px;
}
.contact-row .c {
  display: inline-flex; align-items: center; gap: 8px;
}
.contact-row .c::before {
  content: "▸";
  color: var(--accent);
}

/* footer */
.foot {
  margin-top: 50px;
  padding-top: 16px;
  border-top: 1px dashed var(--border);
  color: var(--fg-mute);
  font-size: 11px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
}

/* Selection */
::selection { background: var(--accent); color: var(--bg); }