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

:root {
  --black:        #080c08;
  --green:        #39ff6a;
  --green-dim:    #1a7a35;
  --green-faint:  #0d3d1c;
  --amber:        #f0a500;
  --amber-dim:    #7a5200;
  --panel-bg:     #0a0f0a;
  --panel-border: #1a3020;
  --white:        #d0e0d0;
  --grid-bg:      #f7f7f4;
  --sidebar-w:    268px;
  --topbar-h:     44px;
  --mobile-bar-h: 48px;
}

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: var(--black);
  font-family: 'Share Tech Mono', monospace;
  font-size: 14px;
  color: var(--green);
  -webkit-font-smoothing: antialiased;
}

/* ── Layout ──────────────────────────────────────────────────────────────── */
#app { display: flex; flex-direction: column; width: 100vw; height: 100vh; }

#top-bar {
  height: var(--topbar-h);
  min-height: var(--topbar-h);
  background: var(--panel-bg);
  border-bottom: 1px solid var(--panel-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  z-index: 100;
  flex-shrink: 0;
  gap: 12px;
}

#main { display: flex; flex: 1; overflow: hidden; }

/* ── Top bar ─────────────────────────────────────────────────────────────── */
.top-title {
  font-family: 'VT323', monospace;
  font-size: 22px;
  color: var(--green);
  letter-spacing: 0.08em;
  text-shadow: 0 0 10px rgba(57,255,106,0.25);
  white-space: nowrap;
  cursor: default;
  user-select: none;
}

.top-center { display: flex; gap: 8px; align-items: center; }

.top-btn {
  font-size: 9px;
  color: var(--green-dim);
  letter-spacing: 0.1em;
  cursor: pointer;
  border: 1px solid var(--green-faint);
  padding: 4px 10px;
  background: transparent;
  font-family: 'Share Tech Mono', monospace;
  transition: all 0.15s;
  white-space: nowrap;
}
.top-btn:hover { border-color: var(--green-dim); color: var(--green); }

.top-credits {
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  cursor: pointer;
}
.top-credits-label {
  font-size: 9px;
  color: var(--amber-dim);
  letter-spacing: 0.1em;
}
.top-credits-value {
  font-family: 'VT323', monospace;
  font-size: 22px;
  color: var(--amber);
  text-shadow: 0 0 8px rgba(240,165,0,0.25);
  line-height: 1;
}

/* ── Sidebar ─────────────────────────────────────────────────────────────── */
#sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  background: var(--panel-bg);
  border-right: 1px solid var(--panel-border);
  display: flex;
  flex-direction: column;
  z-index: 90;
  overflow: hidden;
}

#sidebar-scroll {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
}
#sidebar-scroll::-webkit-scrollbar { width: 3px; }
#sidebar-scroll::-webkit-scrollbar-thumb { background: var(--green-faint); }

.sidebar-section {
  padding: 11px 15px;
  border-bottom: 1px solid var(--panel-border);
}

.sidebar-label {
  font-size: 9px;
  color: var(--green-dim);
  letter-spacing: 0.14em;
  display: block;
  margin-bottom: 8px;
}

/* Free action dots */
.free-dots { display: flex; gap: 6px; margin-bottom: 3px; }
.free-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 5px rgba(57,255,106,0.4);
  transition: all 0.2s;
}
.free-dot.used {
  background: var(--green-faint);
  box-shadow: none;
  border: 1px solid var(--green-dim);
}
.free-note { font-size: 9px; color: var(--green-dim); }

/* Rubric items */
.rubric-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 7px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.12s;
  margin-bottom: 3px;
}
.rubric-item:hover { border-color: var(--panel-border); background: rgba(57,255,106,0.03); }
.rubric-item.selected { border-color: var(--green-dim); background: rgba(57,255,106,0.05); }
.rubric-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.rubric-name { font-size: 10px; color: var(--white); line-height: 1.3; }
.rubric-custom-tag {
  font-size: 8px;
  color: var(--amber-dim);
  margin-left: auto;
  white-space: nowrap;
}

/* Size options */
.size-options { display: grid; grid-template-columns: 1fr 1fr; gap: 5px; }
.size-opt {
  padding: 7px 6px;
  border: 1px solid var(--panel-border);
  cursor: pointer;
  transition: all 0.12s;
  text-align: center;
}
.size-opt:hover, .size-opt.selected {
  border-color: var(--amber);
  background: rgba(240,165,0,0.06);
}
.size-opt-name {
  font-family: 'VT323', monospace;
  font-size: 20px;
  color: var(--amber);
  display: block;
  line-height: 1;
}
.size-opt-detail { font-size: 8px; color: var(--green-dim); display: block; margin-top: 1px; }

/* Buttons */
.btn {
  padding: 9px 12px;
  font-family: 'Share Tech Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.1em;
  cursor: pointer;
  border: 1px solid;
  background: transparent;
  transition: all 0.15s;
  text-align: left;
  width: 100%;
  display: block;
}
.btn + .btn { margin-top: 6px; }
.btn-premium { border-color: var(--amber); color: var(--amber); }
.btn-premium:hover { background: rgba(240,165,0,0.08); }
.btn-premium:disabled { opacity: 0.3; cursor: not-allowed; }
.btn-free { border-color: var(--green-dim); color: var(--green); }
.btn-free:hover { background: rgba(57,255,106,0.05); }
.btn-free:disabled { opacity: 0.3; cursor: not-allowed; }
.btn-ghost { border-color: var(--panel-border); color: var(--green-dim); }
.btn-ghost:hover { border-color: var(--green-dim); color: var(--green); }
.btn-danger { border-color: #7a2020; color: #bf5a5a; }
.btn-danger:hover { background: rgba(191,90,90,0.08); }
.btn-cost { font-size: 8px; display: block; margin-top: 2px; opacity: 0.7; }

/* ── Grid viewport ───────────────────────────────────────────────────────── */
#grid-viewport {
  flex: 1;
  position: relative;
  overflow: hidden;
  background-color: var(--grid-bg);
  background-image:
    linear-gradient(rgba(0,0,0,0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.12) 1px, transparent 1px);
  background-size: 80px 80px;
  background-position: 0 0;
  cursor: grab;
}
#grid-viewport.grabbing { cursor: grabbing; }
#grid-viewport.placing  { cursor: crosshair; }

#grid-canvas { position: absolute; top: 0; left: 0; transform-origin: 0 0; }

/* ── Blocks ──────────────────────────────────────────────────────────────── */
.block {
  position: absolute;
  border: 2px solid;
  background: white;
  transition: box-shadow 0.15s;
  overflow: hidden;
}
.block.open { cursor: pointer; }
.block.open:hover { box-shadow: 0 4px 24px rgba(0,0,0,0.18); }
.block.closed { opacity: 0.82; cursor: default; }
.block.loading { opacity: 0.5; pointer-events: none; }

@keyframes blockPop {
  from { transform: scale(0.88); opacity: 0; }
  to   { transform: scale(1);    opacity: 1; }
}
.block.just-created { animation: blockPop 0.28s ease; }

.block-inner { display: flex; width: 100%; }

/* XS layouts */
.block-xs-text { padding: 8px 10px 22px; width: 100%; }
.block-xs-img  { width: 100%; height: 100%; position: relative; min-height: 60px; }
.block-xs-img img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* S: square image top-left */
.block-s-img {
  flex-shrink: 0;
  overflow: hidden;
}
.block-s-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.block-s-text { flex: 1; padding: 8px 10px 22px; min-width: 0; }

/* M/L: full-height left column */
.block-ml-img {
  flex-shrink: 0;
  overflow: hidden;
  align-self: stretch;
}
.block-ml-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.block-ml-text { flex: 1; padding: 10px 12px 22px; min-width: 0; overflow: hidden; }

.block-text-content {
  font-family: 'EB Garamond', serif;
  font-size: 13px;
  line-height: 1.55;
  color: #1a1a1a;
  word-wrap: break-word;
}
.block-empty-hint {
  font-family: 'EB Garamond', serif;
  font-style: italic;
  font-size: 12px;
  color: #ccc;
}
.block-cursor {
  display: inline-block;
  width: 7px; height: 12px;
  background: #bbb;
  vertical-align: middle;
  margin-left: 2px;
  animation: blink 1.1s step-end infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

.block-footer {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 2px 8px;
  display: flex;
  justify-content: space-between;
  background: rgba(255,255,255,0.88);
  border-top: 1px solid rgba(0,0,0,0.06);
}
.block-footer span {
  font-size: 8px;
  color: #aaa;
  font-family: 'Share Tech Mono', monospace;
}
.block-closed-badge {
  position: absolute;
  top: 3px; right: 3px;
  font-size: 7px;
  letter-spacing: 0.08em;
  font-family: 'Share Tech Mono', monospace;
  background: rgba(0,0,0,0.07);
  padding: 1px 4px;
  color: #999;
}

/* Placement ghost */
.placement-ghost {
  position: absolute;
  border: 2px dashed rgba(240,165,0,0.7);
  background: rgba(240,165,0,0.07);
  pointer-events: none;
  z-index: 50;
}

/* ── Toast ───────────────────────────────────────────────────────────────── */
#toast {
  position: fixed;
  bottom: 20px;
  left: calc(var(--sidebar-w) + 16px);
  right: 16px;
  max-width: 540px;
  padding: 10px 16px;
  font-size: 11px;
  letter-spacing: 0.07em;
  z-index: 9999;
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
  border: 1px solid;
}
#toast.show   { opacity: 1; }
#toast.free    { border-color: var(--green-dim); color: var(--green); background: rgba(8,12,8,0.97); }
#toast.premium { border-color: var(--amber);     color: var(--amber); background: rgba(8,12,8,0.97); }
#toast.warn    { border-color: #bf5a5a;           color: #bf5a5a;     background: rgba(8,12,8,0.97); }
#toast.info    { border-color: var(--green-dim);  color: var(--white); background: rgba(8,12,8,0.97); }

/* ── Modal ───────────────────────────────────────────────────────────────── */
#modal-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.78);
  z-index: 500;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
#modal-overlay.visible { display: flex; }

#modal {
  background: var(--panel-bg);
  border: 1px solid var(--green-dim);
  width: 500px;
  max-width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  padding: 22px;
}
#modal::-webkit-scrollbar { width: 3px; }
#modal::-webkit-scrollbar-thumb { background: var(--green-faint); }

.modal-title {
  font-family: 'VT323', monospace;
  font-size: 22px;
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 4px;
}
.modal-sub {
  font-size: 9px;
  color: var(--green-dim);
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--panel-border);
}
.modal-label {
  font-size: 9px;
  color: var(--green-dim);
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 6px;
  margin-top: 14px;
}
.modal-info {
  font-family: 'EB Garamond', serif;
  font-style: italic;
  font-size: 14px;
  color: var(--white);
  opacity: 0.75;
  margin-bottom: 12px;
  line-height: 1.65;
}
.modal-info strong { font-style: normal; }
.modal-existing {
  border: 1px solid var(--green-faint);
  padding: 10px;
  margin-bottom: 12px;
}
.modal-existing img {
  max-width: 100%;
  max-height: 110px;
  object-fit: contain;
  display: block;
  margin-bottom: 8px;
}
.modal-existing-text {
  font-family: 'EB Garamond', serif;
  font-style: italic;
  font-size: 13px;
  color: #888;
  line-height: 1.5;
}

textarea {
  width: 100%;
  background: rgba(57,255,106,0.03);
  border: 1px solid var(--green-faint);
  color: var(--white);
  font-family: 'EB Garamond', serif;
  font-size: 15px;
  padding: 10px;
  resize: vertical;
  min-height: 80px;
  outline: none;
  line-height: 1.6;
}
textarea:focus { border-color: var(--green-dim); }

input[type="text"], input[type="color"] {
  background: rgba(57,255,106,0.03);
  border: 1px solid var(--green-faint);
  color: var(--white);
  font-family: 'Share Tech Mono', monospace;
  font-size: 13px;
  padding: 8px 10px;
  outline: none;
  width: 100%;
}
input[type="text"]:focus { border-color: var(--green-dim); }
input[type="color"] {
  width: 48px;
  height: 36px;
  padding: 2px 4px;
  cursor: pointer;
  flex-shrink: 0;
}

.char-count { font-size: 9px; color: var(--green-dim); text-align: right; margin-top: 3px; display: block; }
.char-count.over { color: #bf5a5a; }

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--panel-border);
}
.modal-actions .btn { width: auto; flex: 1 1 auto; min-width: 120px; }

/* Image upload zone */
.img-upload-zone {
  border: 1px dashed var(--green-dim);
  padding: 14px;
  text-align: center;
  cursor: pointer;
  transition: all 0.15s;
  margin-top: 4px;
  position: relative;
}
.img-upload-zone:hover { border-color: var(--green); background: rgba(57,255,106,0.03); }
.img-upload-zone input { display: none; }
.img-upload-label { font-size: 10px; color: var(--green-dim); letter-spacing: 0.1em; display: block; }
.img-preview { max-width: 100%; max-height: 130px; object-fit: contain; margin-top: 8px; display: none; }

/* Credit packages */
.packages-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 8px;
}
.package-opt {
  border: 1px solid var(--panel-border);
  padding: 12px;
  cursor: pointer;
  transition: all 0.12s;
  text-align: center;
}
.package-opt:hover, .package-opt.selected {
  border-color: var(--amber);
  background: rgba(240,165,0,0.05);
}
.package-credits {
  font-family: 'VT323', monospace;
  font-size: 28px;
  color: var(--amber);
  display: block;
  line-height: 1;
}
.package-price {
  font-size: 11px;
  color: var(--white);
  display: block;
  margin-top: 2px;
}
.package-note { font-size: 9px; color: var(--green-dim); display: block; margin-top: 3px; }

/* Color picker row */
.color-row { display: flex; gap: 8px; align-items: center; }
.color-row input[type="text"] { flex: 1; }

/* ── About overlay ───────────────────────────────────────────────────────── */
#about-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.88);
  z-index: 600;
  align-items: flex-start;
  justify-content: center;
  overflow-y: auto;
  padding: 40px 16px;
}
#about-overlay.visible { display: flex; }

#about-box {
  background: var(--panel-bg);
  border: 1px solid var(--green-dim);
  width: 640px;
  max-width: 100%;
  padding: 36px;
  position: relative;
}
.about-close {
  position: absolute;
  top: 14px; right: 14px;
  background: none; border: none;
  color: var(--green-dim);
  font-size: 18px;
  cursor: pointer;
  font-family: 'Share Tech Mono', monospace;
  transition: color 0.15s;
}
.about-close:hover { color: var(--green); }
.about-title {
  font-family: 'VT323', monospace;
  font-size: 52px;
  color: var(--green);
  letter-spacing: 0.06em;
  text-shadow: 0 0 16px rgba(57,255,106,0.3);
  display: block;
  line-height: 1;
  margin-bottom: 6px;
}
.about-tagline {
  font-family: 'EB Garamond', serif;
  font-style: italic;
  font-size: 18px;
  color: var(--white);
  opacity: 0.7;
  display: block;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--panel-border);
}
.about-p {
  font-family: 'EB Garamond', serif;
  font-size: 16px;
  color: var(--white);
  opacity: 0.82;
  line-height: 1.85;
  margin-bottom: 16px;
}
.about-hl { color: var(--green); font-family: 'Share Tech Mono', monospace; font-size: 13px; }
.about-section { margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--panel-border); }
.about-section-title {
  font-family: 'VT323', monospace;
  font-size: 22px;
  color: var(--green-dim);
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 10px;
}
.about-contact {
  font-size: 12px;
  color: var(--green-dim);
  margin-top: 20px;
  letter-spacing: 0.08em;
}
.about-contact a { color: var(--green-dim); text-decoration: none; }
.about-contact a:hover { color: var(--green); }

/* ── Place banner ────────────────────────────────────────────────────────── */
#place-banner {
  display: none;
  position: fixed;
  top: calc(var(--topbar-h) + 10px);
  left: 50%; transform: translateX(-50%);
  background: rgba(8,12,8,0.97);
  border: 1px solid var(--amber);
  padding: 9px 20px;
  font-size: 10px;
  color: var(--amber);
  letter-spacing: 0.1em;
  z-index: 300;
  white-space: nowrap;
}
#place-banner.visible { display: block; }

/* ── Zoom controls ───────────────────────────────────────────────────────── */
#zoom-controls {
  position: fixed;
  bottom: 20px; right: 16px;
  display: flex; flex-direction: column;
  gap: 4px; z-index: 200;
}
.zoom-btn {
  width: 30px; height: 30px;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  color: var(--green);
  font-size: 15px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Share Tech Mono', monospace;
  transition: all 0.15s;
}
.zoom-btn:hover { border-color: var(--green-dim); background: rgba(57,255,106,0.04); }

/* ── Loading indicator ───────────────────────────────────────────────────── */
#loading-bar {
  position: fixed;
  top: var(--topbar-h);
  left: 0; right: 0;
  height: 2px;
  background: var(--green);
  z-index: 400;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
  box-shadow: 0 0 8px rgba(57,255,106,0.5);
}
#loading-bar.active { transform: scaleX(1); }

/* ── Mobile ──────────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  :root { --sidebar-w: 0px; }

  #sidebar { display: none; }

  #app { padding-bottom: var(--mobile-bar-h); }

  #mobile-bar {
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 0 8px;
    height: var(--mobile-bar-h);
    background: var(--panel-bg);
    border-top: 1px solid var(--panel-border);
    position: fixed;
    bottom: 0; left: 0; right: 0;
    z-index: 100;
  }

  #toast        { left: 12px; bottom: calc(var(--mobile-bar-h) + 8px); }
  #place-banner { top: auto; bottom: calc(var(--mobile-bar-h) + 8px); }
  #zoom-controls { bottom: calc(var(--mobile-bar-h) + 8px); right: 10px; }

  .mobile-btn {
    background: none;
    border: 1px solid var(--panel-border);
    color: var(--green-dim);
    font-family: 'Share Tech Mono', monospace;
    font-size: 9px;
    letter-spacing: 0.08em;
    padding: 6px 10px;
    cursor: pointer;
    transition: all 0.15s;
  }
  .mobile-btn:hover, .mobile-btn.active {
    border-color: var(--green);
    color: var(--green);
  }
  .mobile-btn.amber { border-color: var(--amber-dim); color: var(--amber); }
  #mobile-credits {
    font-family: 'VT323', monospace;
    font-size: 20px;
    color: var(--amber);
    cursor: pointer;
  }
}

@media (min-width: 641px) {
  #mobile-bar { display: none; }
}

/* ── Mobile panel ────────────────────────────────────────────────────────── */
#mobile-panel {
  display: none;
  position: fixed;
  bottom: var(--mobile-bar-h);
  left: 0; right: 0;
  background: var(--panel-bg);
  border-top: 1px solid var(--panel-border);
  z-index: 95;
  padding: 14px 16px;
  max-height: 55vh;
  overflow-y: auto;
}
#mobile-panel.visible { display: block; }
#mobile-panel::-webkit-scrollbar { width: 3px; }
#mobile-panel::-webkit-scrollbar-thumb { background: var(--green-faint); }

/* ── Payment success banner ──────────────────────────────────────────────── */
#payment-banner {
  display: none;
  position: fixed;
  top: calc(var(--topbar-h) + 10px);
  left: 50%; transform: translateX(-50%);
  background: rgba(8,12,8,0.97);
  border: 1px solid var(--green);
  padding: 10px 20px;
  font-size: 11px;
  color: var(--green);
  letter-spacing: 0.1em;
  z-index: 350;
  text-align: center;
}
#payment-banner.visible { display: block; }