/* ─── TOKENS ────────────────────────────────────────────────────────── */
:root {
  --bg:      #0d1117;
  --surface: #161b22;
  --surf2:   #1c2230;
  --surf3:   #222b38;
  --border:  #21262d;
  --border2: #30363d;
  --java:    #f89820;
  --java2:   #c97010;
  --green:   #3fb950;
  --red:     #f85149;
  --blue:    #79c0ff;
  --purple:  #d2a8ff;
  --yellow:  #e3b341;
  --text:    #c9d1d9;
  --text2:   #e6edf3;
  --muted:   #6e7681;
  --radius:  6px;
}

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

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ─── APP SHELL ─────────────────────────────────────────────────────── */
.app {
  display: grid;
  grid-template-rows: 48px 1fr 28px;
  height: 100vh;
}

/* ─── TOPBAR ────────────────────────────────────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 14px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  user-select: none;
}

.logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.08rem;
  color: var(--java);
  letter-spacing: -0.5px;
  white-space: nowrap;
}
.logo em { color: var(--text2); font-style: normal; }

.ver-badge {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--java);
  border: 1px solid rgba(248,152,32,.3);
  background: rgba(248,152,32,.07);
  padding: 2px 7px;
  border-radius: 20px;
}

.filetab {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.72rem;
  color: var(--muted);
  padding: 3px 10px;
  border-radius: 4px;
  background: var(--surf2);
  border: 1px solid var(--border2);
  margin-left: 4px;
}
.filetab .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--java); flex-shrink: 0; }
.filetab span { color: var(--text2); }

/* runtime selector */
.runtime-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 8px;
}
.runtime-lbl {
  font-size: 0.63rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
#runtimeSelect {
  background: var(--surf2);
  color: var(--text2);
  border: 1px solid var(--border2);
  border-radius: 5px;
  padding: 4px 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  cursor: pointer;
  outline: none;
  max-width: 200px;
  transition: border-color .15s;
}
#runtimeSelect:hover, #runtimeSelect:focus { border-color: var(--java); }
#runtimeSelect option { background: var(--surf2); }

.topbar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* status pill */
.pill {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.66rem;
  color: var(--muted);
  padding: 3px 9px;
  border-radius: 20px;
  border: 1px solid var(--border);
  white-space: nowrap;
}
.pill-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 5px var(--green);
  flex-shrink: 0;
  transition: background .2s, box-shadow .2s;
}
.pill-dot.loading { background: var(--yellow); box-shadow: 0 0 5px var(--yellow); animation: pulse .7s ease-in-out infinite; }
.pill-dot.error   { background: var(--red);    box-shadow: 0 0 5px var(--red); }

@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.2} }

/* buttons */
.btn {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius);
  padding: 5px 12px;
  cursor: pointer;
  transition: all .15s;
  letter-spacing: .2px;
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border2);
  color: var(--muted);
}
.btn-ghost:hover { border-color: var(--text2); color: var(--text2); }

.btn-run {
  background: var(--java);
  color: #000;
  font-weight: 700;
  padding: 5px 16px;
}
.btn-run:hover:not(:disabled) {
  background: var(--java2);
  box-shadow: 0 0 14px rgba(248,152,32,.4);
  transform: translateY(-1px);
}
.btn-run:disabled { opacity: .4; cursor: not-allowed; transform: none !important; box-shadow: none !important; }

.btn-run .spinner {
  width: 10px; height: 10px;
  border: 2px solid rgba(0,0,0,.2);
  border-top-color: #000;
  border-radius: 50%;
  animation: spin .45s linear infinite;
  display: none;
}
.btn-run.running .spinner { display: block; }
.btn-run.running .rl       { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── WORKSPACE ─────────────────────────────────────────────────────── */
.workspace {
  display: grid;
  grid-template-columns: 1fr 1fr;
  overflow: hidden;
  min-height: 0;
}

/* ─── EDITOR PANE ───────────────────────────────────────────────────── */
.ed-pane {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
  overflow: hidden;
  min-height: 0;
}

.pane-hdr {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: .5px;
  text-transform: uppercase;
  flex-shrink: 0;
}
.pane-hdr-actions { margin-left: auto; }

#monacoContainer {
  flex: 1;
  overflow: hidden;
}

/* ─── TERMINAL PANE ─────────────────────────────────────────────────── */
.term-pane {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;
  background: #080c11;
}

.term-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.wm-dots { display: flex; gap: 5px; }
.wm-dot {
  width: 11px; height: 11px; border-radius: 50%;
  cursor: default; transition: filter .15s;
}
.wm-dot:hover { filter: brightness(1.35); }
.wm-close { background: #ff5f57; }
.wm-min   { background: #febc2e; }
.wm-max   { background: #28c840; }

.term-title { flex: 1; text-align: center; font-size: 0.67rem; color: var(--muted); }

#out {
  flex: 1;
  overflow-y: auto;
  padding: 12px 16px;
  font-size: 0.79rem;
  line-height: 1.72;
  white-space: pre-wrap;
  word-break: break-word;
}

/* output line classes */
.ln       { display: block; }
.ln-sys   { color: #3a4352; font-style: italic; }
.ln-ok    { color: var(--green); }
.ln-err   { color: var(--red); }
.ln-warn  { color: var(--yellow); }
.ln-out   { color: var(--text2); }
.ln-info  { color: var(--blue); }
.ln-dim   { color: var(--muted); }
.ln-sep   { color: #1a2030; }

/* blinking cursor */
.cblink {
  display: inline-block;
  width: 7px; height: .88em;
  background: var(--java);
  vertical-align: middle;
  border-radius: 1px;
  animation: cblink 1s step-end infinite;
}
@keyframes cblink { 0%,100%{opacity:1} 50%{opacity:0} }

/* stdin */
.stdin-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  background: var(--surf2);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}
.stdin-lbl {
  font-size: 0.63rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .5px;
  white-space: nowrap;
}
#stdin {
  flex: 1; background: transparent;
  border: none; outline: none;
  color: var(--text2);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  caret-color: var(--java);
}
#stdin::placeholder { color: var(--muted); font-style: italic; }

/* meta row */
.meta {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 12px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  font-size: 0.64rem;
  color: var(--muted);
  flex-shrink: 0;
}
.bdg { padding: 1px 6px; border-radius: 10px; font-size: 0.59rem; font-weight: 700; }
.bdg-ok  { background: rgba(63,185,80,.13);  color: var(--green); }
.bdg-err { background: rgba(248,81,73,.13);  color: var(--red); }

/* ─── STATUS BAR ────────────────────────────────────────────────────── */
.sbar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 12px;
  background: var(--java2);
  font-size: 0.61rem;
  color: rgba(0,0,0,.72);
  font-weight: 700;
  letter-spacing: .35px;
  overflow: hidden;
  flex-shrink: 0;
}
.sbar-r { margin-left: auto; display: flex; gap: 12px; }

/* ─── SCROLLBAR ─────────────────────────────────────────────────────── */
::-webkit-scrollbar          { width: 5px; height: 5px; }
::-webkit-scrollbar-track    { background: transparent; }
::-webkit-scrollbar-thumb    { background: #252d3a; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #3a4558; }

/* ─── THEME OVERRIDE FOR MONACO ─────────────────────────────────────── */
.monaco-editor .margin { background: var(--bg) !important; }
.monaco-editor-background { background: var(--bg) !important; }

/* ─── RESPONSIVE DESIGN ─────────────────────────────────────────────── */

/* Tablet */
@media (max-width: 1024px) {
  .workspace {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr 1fr;
  }
  .ed-pane {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .topbar {
    padding: 0 10px;
    gap: 8px;
  }
  .logo { font-size: 1rem; }
  .filetab { display: none; }
  .runtime-wrap { margin-left: 0; }
  #runtimeSelect { max-width: 150px; font-size: 0.68rem; }
  .topbar-right { gap: 6px; }
  .btn { font-size: 0.68rem; padding: 4px 10px; }
  .sbar-r { gap: 8px; }
  .sbar-r span { display: none; }
}

/* Mobile */
@media (max-width: 768px) {
  .app {
    grid-template-rows: 56px 1fr 32px;
  }
  .topbar {
    flex-wrap: wrap;
    height: auto;
    padding: 8px 10px;
    gap: 6px;
  }
  .logo { font-size: 0.9rem; }
  .ver-badge { display: none; }
  .runtime-wrap { order: 1; width: 100%; justify-content: center; }
  #runtimeSelect { max-width: none; flex: 1; }
  .topbar-right { order: 2; width: 100%; justify-content: center; margin-left: 0; }
  .workspace {
    grid-template-rows: 2fr 1fr;
  }
  .pane-hdr { font-size: 0.6rem; padding: 4px 8px; }
  .term-bar { font-size: 0.6rem; padding: 4px 8px; }
  .stdin-row { font-size: 0.7rem; }
  .meta { font-size: 0.7rem; }
  .sbar { padding: 0 8px; font-size: 0.65rem; }
  .sbar-r { display: none; }
}

/* Small Mobile */
@media (max-width: 480px) {
  .topbar { padding: 6px 8px; }
  .logo { font-size: 0.8rem; }
  .btn { font-size: 0.65rem; padding: 3px 8px; }
  .pill { font-size: 0.6rem; padding: 2px 6px; }
  .workspace {
    grid-template-rows: 3fr 1fr;
  }
  #monacoContainer { font-size: 12px; }
  .term-pane { font-size: 12px; }
  
  /* Botões flutuantes para mobile */
  .topbar-right {
    position: fixed;
    bottom: 0;
    right: 0;
    left: 0;
    flex-direction: column;
    gap: 10px;
    padding: 8px;
    background: linear-gradient(to top, var(--surface), var(--surface) 80%, transparent);
    backdrop-filter: blur(10px);
    z-index: 100;
    width: 100%;
    margin: 0;
    border-top: 1px solid var(--border2);
  }
  
  .topbar-right .btn {
    width: 100%;
    padding: 10px 12px;
    font-size: 0.72rem;
    justify-content: center;
  }
  
  .topbar-right .btn-run {
    padding: 10px 16px;
    font-weight: 700;
    background: var(--java);
  }
  
  .pill {
    position: absolute;
    top: 8px;
    right: 8px;
    margin: 0;
  }
}

/* Extra small */
@media (max-height: 600px) {
  .topbar-right {
    flex-direction: row !important;
    position: static !important;
    border-top: 1px solid var(--border2) !important;
    padding: 6px !important;
    gap: 6px !important;
    background: var(--surface) !important;
    backdrop-filter: none !important;
  }
  
  .topbar-right .btn {
    flex: 1;
    width: auto;
    padding: 4px 8px !important;
    font-size: 0.65rem !important;
  }
}