/* ============================================================
   ProgramWise — shared brand tokens + header
   Used by index.html and python-web-interpreter.html
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600;700&family=IBM+Plex+Sans:wght@400;500;600;700&display=swap');

:root{
  /* ink family — the "editor" the whole site lives inside */
  --ink: #14161c;
  --panel: #1b1e29;
  --panel-raised: #21242f;
  --line: #2b2f3d;

  /* text */
  --paper: #ece8df;   /* primary text — warm, page-like, against the cool ink bg */
  --mute: #8b8fa3;    /* secondary text — muted, "comment" gray */

  /* the two syntax accents that carry the whole brand */
  --gold: #e3a53c;    /* keyword / def / primary actions */
  --teal: #4b8bbe;    /* string / output / secondary actions */

  --ok: #4ade80;
  --err: #f87171;

  --font-mono: 'IBM Plex Mono', 'Consolas', 'Menlo', monospace;
  --font-sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
}
a {
    color: var(--gold);
    text-decoration: bold;
}
  a:hover {
    color: var(--teal);
    text-decoration: bold underline;
}

/* ---------------- Header ---------------- */
.pw-header{
  position: sticky;
  top: 0;
  z-index: 100;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 20px;
  padding: 16px 32px;
  background: rgba(27,30,41,0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.pw-logo{
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 19px;
  color: var(--paper);
  text-decoration: none;
  letter-spacing: -0.01em;
  display:flex;
  align-items: center;
  white-space: nowrap;
}
.pw-logo .cursor{
  display:inline-block;
  width: 8px;
  height: 1.05em;
  background: var(--gold);
  margin-left: 5px;
  animation: pw-blink 1.1s steps(1) infinite;
}
@keyframes pw-blink{ 50%{ opacity:0; } }

.pw-nav{
  display:flex;
  align-items:center;
  gap: 26px;
  list-style:none;
  margin:0;
  padding:0;
  flex-wrap: wrap;
}
.pw-nav a,
.pw-nav .pw-nav-btn{
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1;              /* new */
  color: var(--mute);
  text-decoration:none;
  background: none;
  border: none;
  display: inline-flex;        /* new */
  align-items: center;         /* new */
  padding: 4px 1px 6px;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: color .15s ease, border-color .15s ease;
}
.pw-nav a:hover,
.pw-nav .pw-nav-btn:hover{ color: var(--paper); }
.pw-nav a.active,
.pw-nav .pw-nav-btn.active{ color: var(--gold); border-color: var(--gold); }

@media (max-width: 720px){
  .pw-header{ flex-direction:column; align-items:flex-start; gap:12px; padding:14px 20px; }
  .pw-nav{ gap:16px; font-size:12.5px; }
}

@media (prefers-reduced-motion: reduce){
  .pw-logo .cursor{ animation:none; opacity:1; }
}

/* ---------------- Modals (License info / TCO presentation / Contact) ---------------- */
.pw-modal-overlay{
  position: fixed;
  inset: 0;
  background: rgba(10,11,15,0.65);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 1000;
}
.pw-modal-overlay[hidden]{ display:none; }

.pw-modal{
  background: var(--panel-raised);
  border: 1px solid var(--line);
  border-radius: 12px;
  width: 100%;
  max-width: 560px;
  max-height: min(80vh, 640px);
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,0.45);
  animation: pw-modalIn .18s ease;
}
@keyframes pw-modalIn{
  from{ opacity:0; transform: translateY(8px) scale(.98); }
  to{ opacity:1; transform:none; }
}

.pw-modal-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 16px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: var(--panel-raised);
}
.pw-modal-head h2{
  font-family: var(--font-mono);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--mute);
  margin: 0;
}
.pw-modal-close{
  background: transparent;
  border: 1px solid var(--line);
  color: var(--paper);
  width: 30px;
  height: 30px;
  border-radius: 7px;
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  flex-shrink: 0;
  transition: border-color .15s ease, color .15s ease;
}
.pw-modal-close:hover{ border-color: var(--teal); color: var(--teal); }

.pw-modal-body{ padding: 22px 24px 28px; }
.pw-modal-body p{ color: var(--mute); font-size: 15px; line-height: 1.75; margin: 0 0 14px; }
.pw-modal-body p:last-child{ margin-bottom: 0; }
.pw-modal-body code{
  font-family: var(--font-mono);
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--paper);
  font-size: 13.5px;
}
.pw-modal-body .pw-placeholder-box{
  border: 1px dashed var(--line);
  border-radius: 8px;
  padding: 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--mute);
  text-align: center;
}

body.pw-modal-open{ overflow: hidden; }

@media (max-width: 640px){
  .pw-modal{ max-height: 85vh; }
}