* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}

/* ── Themes ── */
:root {
  --bg:          #0a1a0d;
  --bg-2:        #112016;
  --bg-3:        #0d1a10;
  --border:      #1e3324;
  --border-2:    #162b1e;
  --border-3:    #1a2e20;
  --text:        #d4e8d8;
  --text-muted:  #7aab85;
  --text-dim:    #3d6b4a;
  --text-dim-2:  #4e7a5a;
  --text-dim-3:  #5a8a66;
  --text-code:   #6a9a76;
  --wake-off:    #2a4a32;
  --dot-idle:    #2a4a32;
  --ps-dot:      #2a4a32;

  --syn-keyword: #569cd6;
  --syn-cmdlet:  #4ec9b0;
  --syn-param:   #9cdcfe;
  --syn-string:  #ce9178;
  --syn-number:  #b5cea8;
  --syn-comment: #4a6e52;
  --syn-type:    #4ec9b0;
  --syn-var:     #9cdcfe;
  --syn-op:      #adbfb2;
}

body.light {
  --bg:          #f5f5f5;
  --bg-2:        #e8e8e8;
  --bg-3:        #efefef;
  --border:      #d0d0d0;
  --border-2:    #ddd;
  --border-3:    #ccc;
  --text:        #1a1a1a;
  --text-muted:  #555;
  --text-dim:    #888;
  --text-dim-2:  #666;
  --text-dim-3:  #777;
  --text-code:   #444;
  --wake-off:    #bbb;
  --dot-idle:    #ccc;
  --ps-dot:      #bbb;

  --syn-keyword: #0055cc;
  --syn-cmdlet:  #0e7a5a;
  --syn-param:   #0366d6;
  --syn-string:  #b34b00;
  --syn-number:  #2a6e2a;
  --syn-comment: #6a6a6a;
  --syn-type:    #0e7a5a;
  --syn-var:     #0550ae;
  --syn-op:      #333;
}

/* ── Layout ── */
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 60px 24px;
  gap: 32px;
  transition: background 0.2s, color 0.2s;
}

/* ── Theme toggle ── */
.theme-toggle {
  position: fixed;
  top: 18px;
  right: 20px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 10px;
  font-size: 0.75rem;
  color: var(--text-dim);
  cursor: pointer;
  letter-spacing: 0.06em;
  transition: all 0.2s;
}

.theme-toggle:hover { border-color: var(--text-dim-2); color: var(--text-muted); }

/* ── Heading ── */
h1 {
  font-size: 1.4rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* ── DVD bounce area ── */
.jiggle-area {
  width: 300px;
  height: 160px;
  border: 1px solid var(--border);
  border-radius: 8px;
  position: relative;
  overflow: hidden;
}

.dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--dot-idle);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: background 0.15s;
}

/* ── Main button ── */
.btn {
  padding: 14px 48px;
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-2);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
  outline: none;
}

.btn:hover { border-color: var(--text-dim-2); color: var(--text); }

.btn.running {
  border-color: #4ade80;
  color: #4ade80;
  background: #0d2a1a;
}

body.light .btn.running {
  border-color: #ef4444;
  color: #ef4444;
  background: #fef2f2;
}

/* ── Status lines ── */
.status {
  font-size: 0.85rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

.status span { color: var(--text-dim-3); }

.wake-status {
  font-size: 0.75rem;
  color: var(--wake-off);
}

.wake-status.on { color: #4ade8088; }
body.light .wake-status.on { color: #16a34a; }

/* ── Divider ── */
.divider {
  width: 100%;
  max-width: 640px;
  border: none;
  border-top: 1px solid var(--border-2);
}

/* ── Instructions ── */
.instructions {
  width: 100%;
  max-width: 640px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.instructions h2 {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  margin-bottom: 12px;
  text-align: center;
}

.instructions h2:only-child {
  margin-bottom: 0;
}

.step {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.step-num {
  min-width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1px solid var(--border);
  font-size: 0.7rem;
  color: var(--text-dim-2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
}

.step-text {
  font-size: 0.82rem;
  color: var(--text-dim-2);
  line-height: 1.5;
}

.step-text code {
  font-family: 'Consolas', 'Courier New', monospace;
  background: var(--bg-2);
  border: 1px solid var(--border-3);
  border-radius: 3px;
  padding: 1px 6px;
  color: var(--text-code);
  font-size: 0.8rem;
}

/* ── Code block ── */
.ps-wrapper {
  width: 100%;
  max-width: 640px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ps-section {
  width: 100%;
  max-width: 640px;
  border: 1px solid var(--border-2);
  border-radius: 8px;
  overflow: hidden;
}

.ps-titlebar {
  background: var(--bg-2);
  border-bottom: 1px solid var(--border-3);
  padding: 8px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.ps-titlebar-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ps-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ps-dot);
}

.ps-title {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-family: 'Consolas', 'Courier New', monospace;
}

.copy-btn {
  font-size: 0.7rem;
  color: var(--text-dim);
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 3px 10px;
  cursor: pointer;
  font-family: 'Segoe UI', system-ui, sans-serif;
  letter-spacing: 0.04em;
  transition: all 0.15s;
}

.copy-btn:hover { border-color: var(--text-dim-2); color: var(--text-muted); }
.copy-btn.copied { border-color: #4ade8066; color: #4ade80; }
body.light .copy-btn { color: #555; border-color: #bbb; }
body.light .copy-btn:hover { border-color: #888; color: #333; }

.ps-code {
  background: var(--bg-3);
  padding: 20px;
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 0.82rem;
  line-height: 1.7;
  overflow-x: auto;
  white-space: pre;
}

/* ── Download link ── */
.download-link {
  font-size: 0.7rem;
  color: var(--text-dim);
  text-decoration: none;
  letter-spacing: 0.08em;
  text-align: center;
  opacity: 0.6;
}

.download-link:hover { color: var(--text-muted); opacity: 1; }

/* Syntax colours — swap with theme */
.ps-keyword { color: var(--syn-keyword); }
.ps-cmdlet  { color: var(--syn-cmdlet);  }
.ps-param   { color: var(--syn-param);   }
.ps-string  { color: var(--syn-string);  }
.ps-number  { color: var(--syn-number);  }
.ps-comment { color: var(--syn-comment); font-style: italic; }
.ps-type    { color: var(--syn-type);    }
.ps-var     { color: var(--syn-var);     }
.ps-op      { color: var(--syn-op);      }