/* =========================================================
   STYLES — base layout, terminal chrome, component styles
   ========================================================= */

/* ── Reset ────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ── Base ─────────────────────────────────────────────── */
html, body {
  height: 100%;
}

body {
  font-family: 'Fira Code', 'Cascadia Code', 'JetBrains Mono', 'Courier New', Courier, monospace;
  background-color: var(--bg-base);
  color: var(--fg-base);
  overflow-x: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  padding: 1rem;
  position: relative;
}

/* ── Ambient blobs ────────────────────────────────────── */
body::before,
body::after {
  content: "";
  position: fixed;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
  pointer-events: none;
  z-index: 1;
  animation: blob-drift 12s ease-in-out infinite;
}

body::before {
  background: var(--accent-blue);
  top: 8%;
  left: 6%;
  animation-delay: 0s;
}

body::after {
  background: var(--accent-green);
  bottom: 8%;
  right: 6%;
  animation-delay: -6s;
}

/* ── Scrollbars ───────────────────────────────────────── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-green);
}

* {
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
  scrollbar-width: thin;
}

/* ── Terminal window ──────────────────────────────────── */
#terminal-window {
  width: 100%;
  max-width: 960px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 0 60px rgba(0, 0, 0, 0.6), var(--neon-glow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 600px;
  position: relative;
  z-index: 10;
  transition: box-shadow 0.4s ease;
}

/* ── Titlebar ─────────────────────────────────────────── */
#titlebar {
  background: var(--bg-titlebar);
  border-bottom: 1px solid var(--border);
  padding: 8px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  user-select: none;
}

.titlebar-dots {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  cursor: pointer;
  transition: filter 0.15s;
}

.dot:hover {
  filter: brightness(1.25);
}

.dot-red    { background: var(--accent-red); }
.dot-yellow { background: var(--accent-yellow); }
.dot-green  { background: var(--accent-green); }

#titlebar-title {
  flex: 1;
  text-align: center;
  font-size: 0.75rem;
  color: var(--fg-dim);
  font-weight: 600;
  letter-spacing: 0.05em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#titlebar-controls {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.ctrl-btn {
  padding: 2px 7px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg-dim);
  font-family: inherit;
  font-size: 0.65rem;
  border-radius: 3px;
  cursor: pointer;
  letter-spacing: 0.03em;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
  white-space: nowrap;
}

.ctrl-btn:hover {
  color: var(--fg-base);
  border-color: var(--fg-dim);
  background: var(--bg-overlay);
}

/* ── Terminal body ────────────────────────────────────── */
#terminal-body {
  padding: 20px 28px 20px;
  flex: 1;
  overflow-y: auto;
  font-size: 0.875rem;
  line-height: 1.65;
  display: flex;
  flex-direction: column;
  cursor: text;
}

/* ── Terminal output ──────────────────────────────────── */
#terminal-output {
  flex: 1;
}

/* Output line variants */
.t-line {
  display: block;
  word-break: break-word;
  white-space: pre-wrap;
}

.t-line--cmd     { color: var(--fg-bright); }
.t-line--output  { color: var(--fg-base); }
.t-line--success { color: var(--accent-green); }
.t-line--error   { color: var(--accent-red); }
.t-line--warn    { color: var(--accent-yellow); }
.t-line--info    { color: var(--accent-cyan); }
.t-line--dim     { color: var(--fg-dim); font-size: 0.8em; }
.t-line--blank   { min-height: 1.2em; }
.t-line--ascii   { white-space: pre; overflow-x: auto; line-height: 1.3; }
.t-line--block   { white-space: normal; }

/* ── Neofetch layout ──────────────────────────────────── */
.neofetch-block {
  display: flex;
  flex-direction: row;
  gap: 2.5rem;
  align-items: flex-start;
  margin: 0.25rem 0;
}

.neofetch-ascii {
  color: var(--accent-blue);
  font-weight: 700;
  line-height: 1.25;
  white-space: pre;
  flex-shrink: 0;
  font-size: 0.875rem;
}

.neofetch-ascii.neon {
  text-shadow: var(--neon-glow);
}

.neofetch-info {
  color: var(--fg-base);
  line-height: 1.8;
  flex: 1;
}

.neofetch-info .nf-title {
  font-weight: 700;
  margin-bottom: 0.1rem;
}

.neofetch-info .nf-title .nf-user { color: var(--accent-blue); }
.neofetch-info .nf-title .nf-sep  { color: var(--fg-dim); }
.neofetch-info .nf-title .nf-host { color: var(--accent-blue); }

.neofetch-info .nf-sep-line {
  color: var(--fg-dim);
  margin-bottom: 0.15rem;
}

.nf-key   { color: var(--accent-green); font-weight: 600; }
.nf-value { color: var(--fg-base); }

.color-swatches {
  display: flex;
  gap: 4px;
  margin-top: 0.5rem;
}

.swatch {
  width: 16px;
  height: 16px;
  border-radius: 2px;
}

/* ── BTW title display ────────────────────────────────── */
.btw-title {
  font-size: clamp(1.8rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 0.5rem 0;
  color: var(--accent-blue);
}

.btw-title .btw-word {
  color: var(--accent-cyan);
}

/* ── Prompt line ──────────────────────────────────────── */
#prompt-line {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  margin-top: 4px;
  min-height: 1.65em;
  position: relative;
}

.prompt-bracket { color: var(--fg-dim); }
.prompt-user    { color: var(--accent-blue); font-weight: 600; }
.prompt-at      { color: var(--fg-dim); }
.prompt-host    { color: var(--accent-blue); font-weight: 600; }
.prompt-space   { width: 0.3em; display: inline-block; }
.prompt-path    { color: var(--accent-cyan); }
.prompt-sym     { color: var(--accent-green); font-weight: 700; margin: 0 0.4em 0 0.2em; }

#prompt-display {
  color: var(--fg-bright);
  white-space: pre;
}

/* ── Hidden keyboard capture input ───────────────────── */
#terminal-input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  top: 0;
  left: 0;
  border: none;
  outline: none;
  background: transparent;
  color: transparent;
  caret-color: transparent;
  resize: none;
  overflow: hidden;
  /* NOT display:none — must remain focusable on iOS */
}

/* ── Share toast ──────────────────────────────────────── */
#share-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-overlay);
  border: 1px solid var(--accent-green);
  color: var(--accent-green);
  padding: 8px 16px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-family: inherit;
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
  z-index: 100;
}

#share-toast.visible {
  opacity: 1;
}

/* ── Vim mode indicator ───────────────────────────────── */
#vim-indicator {
  display: none;
  font-size: 0.7rem;
  color: var(--fg-dim);
  padding: 2px 8px;
  border-top: 1px solid var(--border);
  background: var(--bg-titlebar);
}

#vim-indicator.visible {
  display: block;
}

/* ── Help table ───────────────────────────────────────── */
.help-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85em;
  margin: 0.25rem 0;
}

.help-table td {
  padding: 1px 0;
  vertical-align: top;
}

.help-table td:first-child {
  color: var(--accent-cyan);
  padding-right: 1.5rem;
  white-space: nowrap;
}

.help-table td:last-child {
  color: var(--fg-dim);
}

/* ── Mobile ───────────────────────────────────────────── */
@media (max-width: 640px) {
  body {
    padding: 0;
    align-items: stretch;
  }

  #terminal-window {
    min-height: 100dvh;
    border-radius: 0;
    max-width: 100%;
    border-left: none;
    border-right: none;
  }

  #terminal-body {
    padding: 14px 16px 14px;
    font-size: 0.78rem;
  }

  .neofetch-ascii {
    font-size: 0.45rem;
    line-height: 1.15;
  }

  .neofetch-block {
    gap: 1rem;
  }

  .btw-title {
    font-size: clamp(1.4rem, 8vw, 2.2rem);
  }

  #titlebar-controls .ctrl-btn {
    font-size: 0.58rem;
    padding: 2px 5px;
  }
}

@media (max-width: 420px) {
  .neofetch-ascii {
    display: none;
  }
}