/* ============================================
   StructScript Playground — style.css
   Brand: Teal #0b7a75 · Lime #b8f000 · Ink #0d1f1e
   Fonts: Manrope + DM Mono
   ============================================ */

:root {
  --ss-teal:    #0b7a75;
  --ss-teal-lt: #12a89e;
  --ss-teal-dk: #064e4b;
  --ss-lime:    #b8f000;
  --ss-lime-lt: #d4ff3a;
  --ss-lime-dk: #8ab800;
  --ss-ink:     #0d1f1e;
  --ss-ink2:    #1a3230;
  --ss-ink3:    #243e3c;
  --ss-grey:    #4a6e6b;
  --ss-grey-lt: #6a9290;
  --ss-dim:     #2a4442;

  --panel-bg:   #0f2422;
  --editor-bg:  #0b1e1d;
  --output-bg:  #091918;
  --bar-bg:     #0d2120;
  --border:     rgba(11,122,117,0.25);
  --border-lt:  rgba(11,122,117,0.12);

  --font-ui:   'Manrope', sans-serif;
  --font-code: 'DM Mono', monospace;

  --radius:    8px;
  --radius-lg: 12px;
}

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

html, body { height: 100%; overflow: hidden; }

body {
  font-family: var(--font-ui);
  background: var(--ss-ink);
  color: #c8dedd;
  font-size: 14px;
  line-height: 1.6;
}

/* ---- APP LAYOUT ---- */
.app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* ---- HEADER ---- */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  height: 52px;
  background: var(--bar-bg);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  gap: 16px;
}

.header-left { display: flex; align-items: center; gap: 24px; }
.header-right { display: flex; align-items: center; gap: 8px; }

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-text {
  font-family: var(--font-ui);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: -0.5px;
  color: #e8f5f4;
}
.logo-tag {
  font-family: var(--font-code);
  font-size: 10px;
  color: var(--ss-teal-lt);
  background: rgba(11,122,117,0.15);
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid rgba(11,122,117,0.3);
  letter-spacing: 0.05em;
}

/* ---- TABS ---- */
.tabs { display: flex; gap: 2px; }
.tab {
  font-family: var(--font-code);
  font-size: 12px;
  color: var(--ss-grey-lt);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 8px 14px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
  display: flex;
  align-items: center;
  gap: 6px;
}
.tab:hover { color: #c8dedd; }
.tab.active {
  color: var(--ss-lime);
  border-bottom-color: var(--ss-lime);
}
.badge {
  font-size: 9px;
  background: rgba(184,240,0,0.12);
  color: var(--ss-lime);
  padding: 1px 5px;
  border-radius: 3px;
  border: 1px solid rgba(184,240,0,0.25);
  letter-spacing: 0.03em;
}
.badge.beta {
  background: rgba(18,168,158,0.12);
  color: var(--ss-teal-lt);
  border-color: rgba(18,168,158,0.25);
}

/* ---- BUTTONS ---- */
.btn-ghost {
  font-family: var(--font-code);
  font-size: 12px;
  color: var(--ss-grey-lt);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 5px 12px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.btn-ghost:hover {
  background: rgba(11,122,117,0.1);
  color: #c8dedd;
  border-color: rgba(11,122,117,0.4);
}
.btn-ghost.small { font-size: 11px; padding: 3px 9px; }

.btn-lime {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 12px;
  color: var(--ss-ink);
  background: var(--ss-lime);
  border: none;
  border-radius: var(--radius);
  padding: 6px 14px;
  cursor: pointer;
  transition: background 0.15s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  letter-spacing: 0.01em;
}
.btn-lime:hover { background: var(--ss-lime-lt); }

.btn-run {
  font-family: var(--font-code);
  font-size: 12px;
  color: var(--ss-ink);
  background: var(--ss-lime);
  border: none;
  border-radius: var(--radius);
  padding: 5px 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 7px;
  font-weight: 600;
  transition: background 0.15s, transform 0.1s;
}
.btn-run:hover { background: var(--ss-lime-lt); }
.btn-run:active { transform: scale(0.97); }
.btn-run.running { background: var(--ss-teal); color: #fff; }

.run-tri {
  width: 0; height: 0;
  border-style: solid;
  border-width: 4.5px 0 4.5px 8px;
  border-color: transparent transparent transparent var(--ss-ink);
  display: inline-block;
}
.btn-run.running .run-tri { display: none; }

/* ---- WORKSPACE ---- */
.workspace {
  display: flex;
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

/* ---- PANELS ---- */
.panel {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 200px;
}

.editor-panel { flex: 1; }
.output-panel { flex: 1; border-left: 1px solid var(--border); }

.panel-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  height: 36px;
  background: var(--bar-bg);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.panel-bar-left { display: flex; align-items: center; gap: 8px; }
.panel-bar-right { display: flex; align-items: center; gap: 8px; }

.file-name {
  font-family: var(--font-code);
  font-size: 12px;
  color: var(--ss-teal-lt);
}
.file-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--ss-lime);
}
.out-label {
  font-family: var(--font-code);
  font-size: 12px;
  color: var(--ss-grey-lt);
}

.status-badge {
  font-family: var(--font-code);
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 20px;
  display: none;
}
.status-badge.ok {
  display: inline-block;
  background: rgba(0,200,80,0.1);
  color: #4ade80;
  border: 1px solid rgba(0,200,80,0.2);
}
.status-badge.err {
  display: inline-block;
  background: rgba(240,60,60,0.1);
  color: #f87171;
  border: 1px solid rgba(240,60,60,0.2);
}
.status-badge.wait {
  display: inline-block;
  background: rgba(184,240,0,0.1);
  color: var(--ss-lime);
  border: 1px solid rgba(184,240,0,0.2);
  animation: pulse 1.2s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.5} }

/* ---- DIVIDER ---- */
.divider {
  width: 4px;
  background: var(--border);
  cursor: col-resize;
  transition: background 0.15s;
  flex-shrink: 0;
}
.divider:hover, .divider.dragging { background: var(--ss-teal); }

/* ---- EDITOR ---- */
.editor-wrap {
  display: flex;
  flex: 1;
  overflow: hidden;
  background: var(--editor-bg);
}

.line-numbers {
  font-family: var(--font-code);
  font-size: 13px;
  line-height: 1.6;
  color: rgba(106,146,144,0.35);
  text-align: right;
  padding: 14px 10px 14px 14px;
  min-width: 46px;
  user-select: none;
  border-right: 1px solid var(--border-lt);
  overflow: hidden;
  white-space: pre;
}

.editor {
  flex: 1;
  font-family: var(--font-code);
  font-size: 13px;
  line-height: 1.6;
  color: #d4edeb;
  background: var(--editor-bg);
  border: none;
  outline: none;
  resize: none;
  padding: 14px 16px;
  tab-size: 2;
  white-space: pre;
  overflow-wrap: normal;
  overflow-x: auto;
  caret-color: var(--ss-lime);
}

/* ---- OUTPUT ---- */
.output-body {
  flex: 1;
  overflow-y: auto;
  background: var(--output-bg);
  padding: 14px 16px;
  font-family: var(--font-code);
  font-size: 13px;
  line-height: 1.75;
}

.output-welcome {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 12px;
  opacity: 0.6;
  text-align: center;
}
.welcome-text {
  font-family: var(--font-ui);
  font-weight: 600;
  color: #c8dedd;
}
.welcome-sub {
  font-family: var(--font-code);
  font-size: 11px;
  color: var(--ss-grey);
}
kbd {
  background: rgba(11,122,117,0.2);
  border: 1px solid rgba(11,122,117,0.4);
  border-radius: 4px;
  padding: 1px 5px;
  font-family: var(--font-code);
  font-size: 11px;
  color: var(--ss-teal-lt);
}

.out-line {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 1px 0;
}
.out-prompt { color: rgba(11,122,117,0.5); flex-shrink: 0; }
.out-val { color: #d4edeb; }
.out-type { color: rgba(106,146,144,0.5); font-size: 11px; margin-left: 4px; }
.out-err { color: #f87171; }
.out-warn { color: #fbbf24; }
.out-info { color: var(--ss-teal-lt); }
.out-input-prompt { color: var(--ss-lime); }
.out-input-val { color: #d4ff3a; }
.out-sep {
  border: none;
  border-top: 1px solid var(--border-lt);
  margin: 8px 0;
}

.input-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 4px 0;
  padding: 6px 10px;
  background: rgba(11,122,117,0.06);
  border: 1px solid rgba(11,122,117,0.2);
  border-radius: var(--radius);
}
.input-prompt-sym { color: var(--ss-lime); }
.input-field {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--font-code);
  font-size: 13px;
  color: #d4ff3a;
  caret-color: var(--ss-lime);
}
.input-submit {
  font-family: var(--font-code);
  font-size: 11px;
  background: rgba(184,240,0,0.12);
  color: var(--ss-lime);
  border: 1px solid rgba(184,240,0,0.3);
  border-radius: 4px;
  padding: 2px 8px;
  cursor: pointer;
}
.input-submit:hover { background: rgba(184,240,0,0.2); }

/* ---- WEB PREVIEW ---- */
.web-preview {
  flex: 1;
  overflow: hidden;
  background: #fff;
}
.web-preview iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ---- FEATURE BAR ---- */
.feature-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  background: var(--bar-bg);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
  flex-wrap: wrap;
}
.feat-label {
  font-family: var(--font-code);
  font-size: 10px;
  color: var(--ss-grey);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-right: 4px;
}
.feat-pill {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-code);
  font-size: 11px;
  color: var(--ss-grey-lt);
  cursor: pointer;
  padding: 3px 10px 3px 6px;
  border-radius: 20px;
  border: 1px solid var(--border);
  transition: all 0.15s;
  user-select: none;
}
.feat-pill:hover { border-color: rgba(11,122,117,0.4); color: #c8dedd; }
.feat-pill.active {
  background: rgba(184,240,0,0.08);
  border-color: rgba(184,240,0,0.3);
  color: var(--ss-lime);
}

.toggle-track {
  width: 26px; height: 14px;
  background: var(--ss-dim);
  border-radius: 7px;
  position: relative;
  display: inline-block;
  transition: background 0.2s;
  flex-shrink: 0;
}
.feat-pill.active .toggle-track { background: var(--ss-teal); }
.toggle-thumb {
  position: absolute;
  width: 10px; height: 10px;
  background: rgba(255,255,255,0.4);
  border-radius: 50%;
  top: 2px; left: 2px;
  transition: left 0.2s, background 0.2s;
}
.feat-pill.active .toggle-thumb { left: 14px; background: var(--ss-lime); }

/* ---- STATUS BAR ---- */
.status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px;
  height: 24px;
  background: var(--ss-teal-dk);
  font-family: var(--font-code);
  font-size: 11px;
  color: rgba(196,230,228,0.6);
  flex-shrink: 0;
}

/* ---- EXAMPLES DRAWER ---- */
.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 100;
  display: none;
  backdrop-filter: blur(2px);
}
.drawer-overlay.open { display: block; }
.drawer {
  position: fixed;
  top: 0; right: 0;
  width: 340px;
  height: 100%;
  background: var(--panel-bg);
  border-left: 1px solid var(--border);
  z-index: 101;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.25s ease;
}
.drawer.open { transform: translateX(0); }
.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-code);
  font-size: 13px;
  color: var(--ss-teal-lt);
  flex-shrink: 0;
}
.drawer-close {
  background: none;
  border: none;
  color: var(--ss-grey);
  cursor: pointer;
  font-size: 14px;
  padding: 2px 6px;
  border-radius: 4px;
}
.drawer-close:hover { background: rgba(255,255,255,0.05); color: #c8dedd; }
.drawer-list { overflow-y: auto; flex: 1; padding: 12px; }
.example-item {
  padding: 12px 14px;
  border-radius: var(--radius);
  cursor: pointer;
  border: 1px solid transparent;
  margin-bottom: 6px;
  transition: all 0.15s;
}
.example-item:hover {
  background: rgba(11,122,117,0.08);
  border-color: rgba(11,122,117,0.2);
}
.example-title {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 13px;
  color: #c8dedd;
  margin-bottom: 2px;
}
.example-desc {
  font-family: var(--font-code);
  font-size: 11px;
  color: var(--ss-grey-lt);
}
.example-tag {
  display: inline-block;
  margin-top: 6px;
  font-family: var(--font-code);
  font-size: 9px;
  background: rgba(11,122,117,0.15);
  color: var(--ss-teal-lt);
  padding: 1px 6px;
  border-radius: 3px;
  border: 1px solid rgba(11,122,117,0.25);
}

/* ---- SCROLLBARS ---- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(11,122,117,0.3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(11,122,117,0.5); }

/* ---- SYNTAX HIGHLIGHTING (applied via JS) ---- */
.sh-kw    { color: #12a89e; }
.sh-fn    { color: #b8f000; }
.sh-str   { color: #a3e635; }
.sh-num   { color: #fbbf24; }
.sh-cmt   { color: rgba(106,146,144,0.45); font-style: italic; }
.sh-prop  { color: #f9a8d4; }
.sh-tag   { color: #12a89e; }