/* ============================================================
   projects/pdf-studio — PDF Studio
   A local, browser-based PDF + media toolkit.
   Layers a tool token ramp + components on top of the global
   cloonk.com system (css/style.css).
   ============================================================ */

@import url("../../css/style.css");

:root {
  --fg:             #faf8f3;
  --surface:        #161614;
  --surface-raised: #20201d;
  --surface-card:   #252521;
  --border:         #343430;
  --border-hover:   #4a4a44;
  --text:           var(--fg);
  --text-muted:     #989890;
  --text-dim:       #707069;
  --accent-hover:   #5cff44;
  --accent-fg:      #0a0a0a;
  --accent-dim:     rgba(57, 255, 20, 0.10);
  --danger:         #ff5b4a;
  --radius:    12px;
  --radius-sm: 8px;
  --radius-xs: 4px;
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --font-mono:  'DM Mono', 'Courier New', monospace;
  --header-h:   56px;
}
[data-theme="light"] {
  --fg:             #0a0a0a;
  --surface:        #ede9e1;
  --surface-raised: #e4dfd4;
  --surface-card:   #eae6dc;
  --border:         #d0ccc4;
  --border-hover:   #b6b2aa;
  --text-muted:     #5a5a54;
  --text-dim:       #8a8a82;
  --accent-hover:   #2e1cd6;
  --accent-fg:      #f5f2ec;
  --accent-dim:     rgba(27, 9, 188, 0.08);
  --danger:         #b03020;
}

html { font-size: 15px; }
body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
}
button, input, select, textarea { font: inherit; }
button { color: inherit; }
a { color: inherit; text-decoration: none; }
code, .mono { font-family: var(--font-mono); }
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-hover); }

/* ── Header ──────────────────────────────────────────────── */
.header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 0 22px;
  background: color-mix(in oklab, var(--bg) 86%, transparent);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(20px);
}
.header-left { display: flex; align-items: center; gap: 16px; min-width: 0; }
.logo {
  display: inline-flex;
  align-items: baseline;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  white-space: nowrap;
  transition: color var(--transition);
}
.logo:hover { color: var(--accent); }
.logo span {
  margin-left: 10px;
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.header-actions { display: flex; align-items: center; gap: 8px; }

.btn, .theme-toggle {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
  transition: background var(--transition), border-color var(--transition),
              color var(--transition), opacity var(--transition), transform var(--transition);
}
.btn:hover:not(:disabled), .theme-toggle:hover { background: var(--surface-raised); border-color: var(--border-hover); }
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:disabled { cursor: not-allowed; opacity: 0.4; }
.btn-accent { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); font-weight: 700; }
.btn-accent:hover:not(:disabled) { background: var(--accent-hover); border-color: var(--accent-hover); color: var(--accent-fg); }
.btn-danger { color: var(--danger); }
.btn-sm { min-height: 30px; padding: 6px 12px; font-size: 0.76rem; }
.link-btn {
  color: var(--accent);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  border-bottom: 1px solid transparent;
}
.link-btn:hover { border-bottom-color: var(--accent); }

.theme-toggle {
  width: 36px; padding: 0;
  position: relative;
}
.theme-toggle .icon-sun, .theme-toggle .icon-moon {
  width: 16px; height: 16px; stroke: currentColor; fill: none;
  stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round;
}
.icon-moon { opacity: 0; position: absolute; }
.icon-sun  { opacity: 1; }
[data-theme="light"] .icon-sun  { opacity: 0; }
[data-theme="light"] .icon-moon { opacity: 1; }

/* ── Privacy bar ─────────────────────────────────────────── */
.privacy-bar {
  display: flex; align-items: center; gap: 9px;
  padding: 7px 22px;
  font-size: 0.74rem;
  letter-spacing: 0.02em;
  color: var(--text-muted);
  background: var(--accent-dim);
  border-bottom: 1px solid var(--border);
}
.privacy-bar .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

/* ── Layout ──────────────────────────────────────────────── */
.layout {
  flex: 1;
  display: grid;
  grid-template-columns: 232px 1fr;
  min-height: 0;
  padding-top: 0;
}

.rail {
  /* Reset the global `nav { position:fixed; display:flex; height:var(--nav-h) }`
     rule (css/style.css) that would otherwise yank the rail out of the grid. */
  position: static;
  display: block;
  height: auto;
  z-index: auto;
  border-right: 1px solid var(--border);
  border-bottom: none;
  padding: 18px 12px;
  overflow-y: auto;
  background: var(--surface);
}
.rail-group { margin-bottom: 18px; }
.rail-label {
  font-size: 0.64rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--text-dim); padding: 0 10px 6px;
}
.rail-btn {
  width: 100%;
  display: flex; align-items: center; gap: 10px;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.84rem; font-weight: 500;
  color: var(--text-muted);
  text-align: left;
  transition: background var(--transition), color var(--transition);
}
.rail-btn:hover { background: var(--surface-raised); color: var(--text); }
.rail-btn.active { background: var(--accent-dim); color: var(--accent); font-weight: 700; }
.rail-ico { width: 18px; text-align: center; font-size: 0.95rem; opacity: 0.85; }

.surface { overflow-y: auto; padding: 28px clamp(20px, 4vw, 44px) 60px; }

/* ── Panels ──────────────────────────────────────────────── */
.panel { display: none; animation: fade 0.25s ease; }
.panel.active { display: block; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.panel-head {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 18px; flex-wrap: wrap; margin-bottom: 22px;
}
.panel-head h1 {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(1.4rem, 3vw, 1.9rem); letter-spacing: -0.01em;
}
.panel-head .sub { color: var(--text-muted); max-width: 60ch; margin-top: 5px; font-size: 0.9rem; }
.panel-tools { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

/* ── Dropzone ────────────────────────────────────────────── */
.dropzone {
  border: 1.5px dashed var(--border-hover);
  border-radius: var(--radius);
  background: var(--surface);
  display: grid; place-items: center;
  padding: 56px 24px;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
}
.dropzone.sm { padding: 36px 24px; }
.dropzone:hover, .dropzone.drag {
  border-color: var(--accent);
  background: var(--accent-dim);
}
.dz-inner { text-align: center; pointer-events: none; }
.dz-icon { font-size: 2.2rem; opacity: 0.5; margin-bottom: 8px; }
.dz-title { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; }
.dz-hint { color: var(--text-muted); font-size: 0.85rem; margin-top: 4px; }
.dz-hint .link-btn { pointer-events: auto; }

/* ── Config block ────────────────────────────────────────── */
.config-block {
  margin-top: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}
.meta-line { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 14px; font-family: var(--font-mono); }
.field-row { display: flex; gap: 18px; flex-wrap: wrap; margin-bottom: 14px; align-items: flex-end; }
.field-row.col { flex-direction: column; align-items: stretch; gap: 12px; }
.field-label {
  display: flex; flex-direction: column; gap: 6px;
  font-size: 0.78rem; font-weight: 600; color: var(--text-muted);
  letter-spacing: 0.02em;
}
.field {
  min-height: 36px;
  padding: 8px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  transition: border-color var(--transition);
  min-width: 180px;
}
.field:focus { outline: none; border-color: var(--accent); }
select.field { cursor: pointer; }
.field.search { min-width: 200px; }
.search-count { font-size: 0.76rem; color: var(--text-dim); font-family: var(--font-mono); }
.hint { font-size: 0.74rem; color: var(--text-dim); align-self: center; }

.slider-row { margin-bottom: 16px; max-width: 460px; }
.slider-row .field-label { flex-direction: row; justify-content: space-between; margin-bottom: 7px; }
.slider-row output { color: var(--accent); font-family: var(--font-mono); font-weight: 700; }
input[type="range"] {
  width: 100%; -webkit-appearance: none; appearance: none;
  height: 4px; border-radius: 2px; background: var(--border); cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 16px; height: 16px; border-radius: 50%; background: var(--accent);
  border: 2px solid var(--bg);
}
input[type="range"]::-moz-range-thumb {
  width: 16px; height: 16px; border-radius: 50%; background: var(--accent); border: 2px solid var(--bg);
}

.radio-row { display: flex; gap: 18px; flex-wrap: wrap; margin-bottom: 16px; }
.radio { display: inline-flex; align-items: center; gap: 7px; font-size: 0.85rem; cursor: pointer; color: var(--text-muted); }
.radio input { accent-color: var(--accent); }

.panel-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 6px; }
.result-line {
  margin-top: 14px; padding: 12px 14px; border-radius: var(--radius-sm);
  background: var(--accent-dim); color: var(--text);
  font-size: 0.85rem; font-family: var(--font-mono);
}

/* ── File cards (merge / images→pdf) ─────────────────────── */
.file-cards {
  display: flex; flex-wrap: wrap; gap: 12px; margin-top: 18px;
}
.file-card {
  position: relative;
  width: 132px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  overflow: hidden;
  cursor: grab;
  transition: border-color var(--transition), transform var(--transition);
}
.file-card:hover { border-color: var(--border-hover); }
.file-card.dragging { opacity: 0.5; }
.file-card.over { border-color: var(--accent); }
.file-card .thumb-img {
  width: 100%; height: 96px; object-fit: cover; display: block;
  background: var(--surface-raised);
}
.file-card .fc-icon {
  height: 96px; display: grid; place-items: center; font-size: 1.8rem;
  color: var(--text-dim); background: var(--surface-raised);
}
.file-card .fc-name {
  padding: 7px 8px; font-size: 0.7rem; color: var(--text-muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.file-card .fc-remove {
  position: absolute; top: 5px; right: 5px;
  width: 22px; height: 22px; border-radius: 50%;
  background: rgba(0,0,0,0.55); color: #fff; font-size: 0.85rem;
  display: grid; place-items: center; opacity: 0; transition: opacity var(--transition);
}
.file-card:hover .fc-remove { opacity: 1; }
.file-card .fc-index {
  position: absolute; top: 5px; left: 5px;
  min-width: 20px; height: 20px; padding: 0 5px; border-radius: 10px;
  background: var(--accent); color: var(--accent-fg);
  font-size: 0.66rem; font-weight: 700; display: grid; place-items: center;
}

/* ── Organize stage ──────────────────────────────────────── */
.organize-stage {
  display: grid;
  grid-template-columns: 184px 1fr;
  gap: 18px;
  height: calc(100vh - var(--header-h) - 220px);
  min-height: 420px;
}
.thumbs {
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 12px;
  display: flex; flex-direction: column; gap: 10px;
}
.thumb {
  position: relative;
  border: 1.5px solid transparent;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: grab;
  background: var(--surface-raised);
  transition: border-color var(--transition);
}
.thumb.active { border-color: var(--accent); }
.thumb.dragging { opacity: 0.4; }
.thumb.over { border-color: var(--accent-hover); }
.thumb canvas { width: 100%; display: block; }
.thumb .t-num {
  position: absolute; bottom: 4px; left: 4px;
  padding: 1px 6px; border-radius: 8px;
  background: rgba(0,0,0,0.6); color: #fff; font-size: 0.64rem; font-weight: 600;
}
.thumb .t-actions {
  position: absolute; top: 4px; right: 4px; display: flex; gap: 4px;
  opacity: 0; transition: opacity var(--transition);
}
.thumb:hover .t-actions { opacity: 1; }
.thumb .t-btn {
  width: 22px; height: 22px; border-radius: 5px;
  background: rgba(0,0,0,0.6); color: #fff; font-size: 0.72rem;
  display: grid; place-items: center;
}
.thumb .t-btn:hover { background: var(--accent); color: var(--accent-fg); }

.viewer {
  display: flex; flex-direction: column;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
}
.viewer-toolbar {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 12px; border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.vt-sep { width: 1px; height: 18px; background: var(--border); margin: 0 3px; }
.page-indicator, .zoom-indicator { font-size: 0.78rem; color: var(--text-muted); font-family: var(--font-mono); min-width: 56px; text-align: center; }
.canvas-wrap {
  flex: 1; overflow: auto; position: relative;
  display: grid; place-items: start center;
  padding: 20px; background: var(--surface-raised);
}
.canvas-wrap canvas { box-shadow: 0 4px 24px rgba(0,0,0,0.35); background: #fff; }
.text-layer {
  position: absolute; inset: 0; overflow: hidden; opacity: 0.0;
  line-height: 1; pointer-events: none;
}
.text-layer.show ::selection { background: var(--accent); }

.text-out {
  width: 100%; min-height: 360px; margin-top: 14px;
  font-family: var(--font-mono); font-size: 0.8rem; line-height: 1.5;
  resize: vertical; white-space: pre-wrap;
}

/* ── Image compressor grid ───────────────────────────────── */
.ic-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 14px; margin-top: 18px;
}
.ic-card {
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface); overflow: hidden;
}
.ic-card img { width: 100%; height: 110px; object-fit: cover; display: block; background: var(--surface-raised); }
.ic-card .ic-meta { padding: 9px 10px; font-size: 0.7rem; }
.ic-card .ic-name { color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-weight: 600; }
.ic-card .ic-stat { color: var(--text-muted); margin-top: 3px; font-family: var(--font-mono); }
.ic-card .ic-saved { color: var(--accent); font-weight: 700; }

/* ── Overlay + toast ─────────────────────────────────────── */
[hidden] {
  display: none !important;
}

.overlay {
  position: fixed; inset: 0; z-index: 200;
  background: color-mix(in oklab, var(--bg) 72%, transparent);
  backdrop-filter: blur(3px);
  display: grid; place-items: center;
}
.overlay-card { text-align: center; }
.spinner {
  width: 38px; height: 38px; margin: 0 auto 14px;
  border: 3px solid var(--border); border-top-color: var(--accent);
  border-radius: 50%; animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.overlay-msg { color: var(--text-muted); font-size: 0.88rem; font-family: var(--font-mono); }

.toast {
  position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%) translateY(20px);
  z-index: 210;
  padding: 11px 20px; border-radius: 100px;
  background: var(--surface-card); border: 1px solid var(--border-hover);
  color: var(--text); font-size: 0.84rem; font-weight: 500;
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
  opacity: 0; transition: opacity var(--transition), transform var(--transition);
  pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.err { border-color: var(--danger); color: var(--danger); }

/* ── Footer ──────────────────────────────────────────────── */
.studio-footer {
  border-top: 1px solid var(--border);
  padding: 14px 22px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 0.74rem; color: var(--text-dim);
}
.studio-footer a:hover { color: var(--accent); }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 820px) {
  /* Single column: rail hugs its content (one row), surface fills the rest and
     scrolls — otherwise the grid stretches the rail into a tall empty band. */
  .layout { grid-template-columns: 1fr; grid-template-rows: auto 1fr; }

  /* Rail collapses from a vertical sidebar into one compact, horizontally
     scrollable tool strip — keeps tool-switching to ~one row instead of a
     tall wrapped wall that buries the actual content. */
  .rail {
    display: flex; flex-wrap: nowrap;
    gap: 6px;
    border-right: none; border-bottom: 1px solid var(--border);
    padding: 10px 12px;
    overflow-x: auto; overflow-y: hidden;
    overscroll-behavior-x: contain;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;            /* Firefox */
  }
  .rail::-webkit-scrollbar { display: none; }
  .rail-group { display: contents; }  /* flatten groups into one scroll row */
  .rail-label { display: none; }
  .rail-btn { flex: 0 0 auto; width: auto; padding: 8px 12px; white-space: nowrap; }

  .organize-stage { grid-template-columns: 1fr; height: auto; }
  .thumbs { flex-direction: row; overflow-x: auto; max-height: 140px; }
  .thumb { flex: 0 0 90px; }

  /* Fit the rendered page to the viewer width so it never overflows the
     screen; pinch-to-zoom still works for a closer look. */
  .canvas-wrap { padding: 12px; }
  .canvas-wrap canvas { max-width: 100%; height: auto; }
}

/* ── Phones ──────────────────────────────────────────────── */
@media (max-width: 560px) {
  html { font-size: 14px; }

  /* Tighten the header so the logo + actions stop colliding. */
  .header { gap: 8px; padding: 0 14px; }
  .logo span { display: none; }       /* drop the "PDF STUDIO" subtitle */
  .header-actions { gap: 6px; }
  .header-actions .btn { padding: 6px 10px; font-size: 0.76rem; }

  .privacy-bar { padding: 7px 14px; font-size: 0.7rem; }
  .surface { padding: 20px 16px 48px; }
  .config-block { padding: 16px; }

  /* Roomier touch targets in the viewer toolbar. */
  .viewer-toolbar { gap: 6px; padding: 8px; }
  .viewer-toolbar .btn-sm { min-height: 36px; padding: 6px 12px; }

  /* Stack inputs full-width instead of cramming them side by side. */
  .field-row { flex-direction: column; align-items: stretch; gap: 12px; }
  .field, .field.search { min-width: 0; width: 100%; }
  .file-card { width: calc(50% - 6px); }
}