/* ==========================================================================
   vitharr@tech — Rock & Steel design system
   Spartan, monochrome-first, one restrained accent. No noise, no chrome.
   ========================================================================== */

:root {
  /* -- surface -- */
  --bg-0: #121417;          /* void behind everything */
  --bg-1: #16181c;          /* terminal body */
  --bg-2: #1c1f24;          /* raised chrome / input line */
  --border: #2a2e34;

  /* -- ink -- */
  --ink-0: #e6e8eb;         /* primary output text — cold steel white */
  --ink-1: #9aa1ab;         /* secondary / muted text */
  --ink-2: #5b6169;         /* tertiary / timestamps / disabled */

  /* -- accent: deep steel blue, used sparingly -- */
  --accent: #5487a3;
  --accent-dim: #3d6377;

  /* -- signal colors: desaturated, never bright -- */
  --ok: #6f8f5c;            /* muted moss green */
  --warn: #a68a52;          /* muted ochre */
  --err: #a15b52;           /* muted brick */

  --font-mono: 'JetBrains Mono', 'SF Mono', 'Roboto Mono', ui-monospace, monospace;

  --radius: 3px;
  --line: 1.55;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  background: var(--bg-0);
}

body {
  font-family: var(--font-mono);
  color: var(--ink-0);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 4vh 4vw;
  -webkit-font-smoothing: antialiased;
}

/* faint fixed-texture on the void, never on the terminal body itself */
.scanline-guard {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(255,255,255,0.012) 0px, rgba(255,255,255,0.012) 1px, transparent 1px, transparent 3px);
  mix-blend-mode: overlay;
}

/* ==========================================================================
   Terminal shell
   ========================================================================== */

.terminal {
  width: 100%;
  max-width: 860px;
  height: min(78vh, 680px);
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.03) inset,
    0 40px 80px -24px rgba(0,0,0,0.7),
    0 0 120px -60px var(--accent-dim);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.terminal__chrome {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.terminal__chrome-dots {
  display: flex;
  gap: 6px;
}
.terminal__chrome-dots span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--border);
  border: 1px solid rgba(255,255,255,0.04);
}

.terminal__chrome-title {
  flex: 1;
  text-align: center;
  font-size: 12px;
  color: var(--ink-2);
  letter-spacing: 0.02em;
}

.terminal__chrome-status {
  font-size: 11px;
  color: var(--ink-2);
  font-variant-numeric: tabular-nums;
  min-width: 62px;
  text-align: right;
}

.terminal__output {
  flex: 1;
  overflow-y: auto;
  padding: 18px 20px 8px;
  font-size: 14px;
  line-height: var(--line);
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.terminal__output::-webkit-scrollbar { width: 8px; }
.terminal__output::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}
.terminal__output::-webkit-scrollbar-track { background: transparent; }

.terminal__input-line {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px 16px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.terminal__prompt {
  color: var(--accent);
  font-size: 14px;
  white-space: nowrap;
  user-select: none;
  text-shadow: 0 0 18px rgba(84,135,163,0.25);
}

/* Wraps the mirror text + cursor + the real (invisible) input.
   The mirror/cursor render the visible state; the input just captures
   focus and keystrokes, so the cursor always tracks the last character. */
.terminal__inputwrap {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  min-width: 0;
}

.terminal__mirror {
  color: var(--ink-0);
  font-family: var(--font-mono);
  font-size: 14px;
  white-space: pre;
}

.terminal__cursor {
  width: 8px;
  height: 16px;
  margin-left: 1px;
  background: var(--ink-0);
  flex-shrink: 0;
  animation: blink 1s steps(1) infinite;
}

@keyframes blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

.terminal__input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  border: none;
  outline: none;
  background: transparent;
  color: transparent;
  caret-color: transparent;
  font-family: var(--font-mono);
  font-size: 14px;
}

/* ==========================================================================
   Output lines
   ========================================================================== */

.line {
  white-space: pre-wrap;
  word-break: break-word;
  opacity: 0;
  animation: rise 220ms ease forwards;
  margin: 0 0 2px;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(2px); }
  to   { opacity: 1; transform: translateY(0); }
}

.line--echo {
  color: var(--ink-1);
}
.line--echo .echo-prompt {
  color: var(--accent);
}

.line--out   { color: var(--ink-0); }
.line--dim   { color: var(--ink-2); }
.line--ok    { color: var(--ok); }
.line--warn  { color: var(--warn); }
.line--err   { color: var(--err); }
.line--accent{
  color: var(--accent);
  text-shadow: 0 0 18px rgba(84,135,163,0.25);
}

/* Boot signature: the 'V' monogram wipes in top-to-bottom, gets one
   brighter flash, then breathes quietly, indefinitely. Reveal uses
   clip-path, the flash uses filter, the breathing uses text-shadow —
   three different properties so the animations never fight each other. */
.line.line--mark {
  color: var(--accent);
  font-weight: 700;
  line-height: 1.15;
  opacity: 1;
  animation:
    mark-reveal 640ms cubic-bezier(.16,.84,.44,1) both,
    mark-pop 900ms ease 640ms 1,
    mark-breathe 5s ease-in-out 900ms infinite;
}

@keyframes mark-reveal {
  from { clip-path: inset(0 0 100% 0); }
  to   { clip-path: inset(0 0 0% 0); }
}

@keyframes mark-pop {
  0%   { filter: brightness(1); }
  40%  { filter: brightness(1.7); }
  100% { filter: brightness(1); }
}

@keyframes mark-breathe {
  0%, 100% { text-shadow: 0 0 14px rgba(84,135,163,0.16); }
  50%      { text-shadow: 0 0 24px rgba(84,135,163,0.4); }
}

.block { margin: 4px 0 14px; }

.hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 10px 0;
}

a.term-link {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-dim);
  transition: color 150ms ease, border-color 150ms ease;
}
a.term-link:hover,
a.term-link:focus-visible {
  color: var(--ink-0);
  border-bottom-color: var(--ink-0);
}

/* simple two-column key: value table used by skills/status/projects */
.kv {
  display: grid;
  grid-template-columns: 180px 1fr;
  column-gap: 12px;
  row-gap: 3px;
}
.kv dt { color: var(--ink-2); }
.kv dd { margin: 0; color: var(--ink-0); }

.bar-track { color: var(--ink-2); }
.bar-fill  { color: var(--accent); }

/* ==========================================================================
   Footer
   ========================================================================== */

.terminal__footer {
  margin-top: 14px;
  font-size: 11px;
  color: var(--ink-2);
  z-index: 1;
}
.terminal__footer code {
  color: var(--ink-1);
  background: var(--bg-2);
  padding: 1px 6px;
  border-radius: 2px;
  border: 1px solid var(--border);
}

/* ==========================================================================
   Accessibility & responsiveness
   ========================================================================== */

:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .line { animation: none; opacity: 1; }
  .line.line--mark { animation: none; clip-path: none; text-shadow: none; }
  .terminal__cursor { animation: none; opacity: 1; }
}

@media (max-width: 640px) {
  body { padding: 0; }
  .terminal {
    max-width: 100%;
    height: 100vh;
    border-radius: 0;
    border: none;
  }
  .terminal__output { font-size: 13px; padding: 14px; }
  .terminal__input-line { padding: 10px 14px 14px; }
  .kv { grid-template-columns: 130px 1fr; }
}