@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500;600&family=Space+Mono:wght@400;700&display=swap');

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

:root {
   --bg:        #f7f4ef;
  --surface:   #ffffff;
  --surface2:  #fdfaf7;
  --surface3:  #ffffff;
  --border:    #e4ddd3;
  --accent:    #c0622a;
  --accent-hover: #7b74ff;
  --accent2:   #e07b3f;
  --accent3: #43e97b;
  --accent-lt: #fdf0e8;
  --text:      #000000;
  --muted: #8a7f74;
  --text2: #8888aa;
  --toolbar-h: 56px;
  --sidebar-w: 260px;
  --radius: 16px;
}

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
/* ════════════════════════════════════════
   NAVBAR
   ════════════════════════════════════════ */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2.5rem;
  height: 64px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 8px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar .logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.35rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 0.5px;
}
.navbar .logo img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.navbar a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  text-decoration: none;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.45rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 100px;
  transition: all 0.2s;
}
.navbar a::before { content: '←'; font-size: 0.9rem; }
.navbar a:hover {
  background: var(--accent-lt);
  border-color: var(--accent2);
  color: var(--accent);
}

.navbar nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.navbar nav a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  text-decoration: none;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.45rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 100px;
  transition: all 0.2s;
}
.navbar nav a::before { content: none; }
.navbar nav a:hover {
  background: var(--accent-lt);
  border-color: var(--accent2);
  color: var(--accent);
}

/* ─── TOP BAR ─────────────────────────────────────── */

#topbar {
  height: var(--toolbar-h);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 8px;
  z-index: 100;
  flex-shrink: 0;
  overflow-x: auto;
}

.logo {
  font-family: 'Space Mono', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 1px;
  white-space: nowrap;
  flex-shrink: 0;
}

.sep {
  width: 1px;
  height: 28px;
  background: var(--border);
  flex-shrink: 0;
}

.top-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 6px 11px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  font-size: 12px;
  font-family: 'DM Sans', sans-serif;
  cursor: pointer;
  transition: all .15s;
  white-space: nowrap;
  flex-shrink: 0;
}
.top-btn:hover {
  background: var(--surface2);
  border-color: var(--accent);
  color: var(--accent);
}
.top-btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.top-btn.primary:hover {
  background: var(--accent-hover);
}

#page-info {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text2);
  font-family: 'Space Mono', monospace;
  flex-shrink: 0;
}
#page-info input[type="number"] {
  width: 44px;
  text-align: center;
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 5px;
  padding: 3px 4px;
  font-family: 'Space Mono', monospace;
  font-size: 12px;
}

/* ─── MAIN LAYOUT ─────────────────────────────────── */

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

/* ─── LEFT TOOLBAR ────────────────────────────────── */

#toolbar {
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  flex-shrink: 0;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
#toolbar::-webkit-scrollbar { width: 4px; }
#toolbar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.tool-section {
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
}

.tool-section-title {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text2);
  padding: 4px 6px 8px;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
}

.tool-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: 8px 4px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  background: transparent;
  color: var(--text2);
  cursor: pointer;
  transition: all .15s;
  font-size: 9px;
  font-family: 'DM Sans', sans-serif;
  min-height: 52px;
}
.tool-btn svg { width: 18px; height: 18px; }
.tool-btn:hover {
  background: var(--surface2);
  color: var(--text);
  border-color: var(--border);
}
.tool-btn.active {
  background: rgba(108, 99, 255, .18);
  color: var(--accent);
  border-color: rgba(108, 99, 255, .4);
}

/* ─── PROPERTY CONTROLS ───────────────────────────── */

.prop-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 6px;
  font-size: 11px;
}

.prop-label {
  color: var(--text2);
  width: 68px;
  flex-shrink: 0;
  font-size: 10px;
}

.prop-control {
  flex: 1;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--text);
  padding: 4px 7px;
  font-size: 11px;
  font-family: 'DM Sans', sans-serif;
  width: 100%;
  transition: border-color .15s;
}
.prop-control:focus { outline: none; border-color: var(--accent); }
input[type="color"].prop-control { padding: 1px 3px; height: 28px; cursor: pointer; }
input[type="range"].prop-control { padding: 0; cursor: pointer; }
select.prop-control { cursor: pointer; }

/* ─── ACTION BUTTONS ──────────────────────────────── */

.action-list {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 4px 6px;
}

.action-btn {
  width: 100%;
  padding: 7px 9px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text);
  cursor: pointer;
  font-size: 11px;
  font-family: 'DM Sans', sans-serif;
  transition: all .15s;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 6px;
}
.action-btn:hover { border-color: var(--accent); color: var(--accent); }
.action-btn.danger:hover { border-color: var(--accent2); color: var(--accent2); }

/* ─── COLOR SWATCHES ──────────────────────────────── */

.swatch-row {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  padding: 5px 6px;
}

.swatch {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all .12s;
}
.swatch:hover {
  transform: scale(1.25);
  border-color: rgba(255, 255, 255, .4);
}

/* ─── CANVAS AREA ─────────────────────────────────── */

#canvas-area {
  flex: 1;
  overflow: auto;
  background: #fdf0e8;
  background-image: radial-gradient(circle at 1px 1px, #1c1c2a 1px, transparent 0);
  background-size: 24px 24px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 30px;
  position: relative;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
#canvas-area::-webkit-scrollbar { width: 6px; height: 6px; }
#canvas-area::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

#canvas-wrapper {
  position: relative;
  box-shadow: 0 12px 70px rgba(163, 93, 93, 0.75), 0 0 0 1px rgba(163, 93, 93, 0.75);
  flex-shrink: 0;
}

#pdf-canvas {
  display: block;
  position: absolute;
  top: 0;
  left: 0;
}

#fabric-canvas {
  position: absolute;
  top: 0;
  left: 0;
}

/* ─── MINI PAGES PANEL ────────────────────────────── */

#mini-pages {
  width: 90px;
  background: var(--surface);
  border-left: 1px solid var(--border);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 8px;
  gap: 8px;
  flex-shrink: 0;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.mini-thumb {
  width: 70px;
  border-radius: 4px;
  border: 2px solid var(--border);
  cursor: pointer;
  transition: all .15s;
  background: #fff;
  display: block;
}
.mini-thumb.active { border-color: var(--accent); }
.mini-thumb:hover { border-color: var(--text2); }

.mini-label {
  font-size: 9px;
  color: var(--text2);
  font-family: 'Space Mono', monospace;
  text-align: center;
}

/* ─── UPLOAD OVERLAY ──────────────────────────────── */

#upload-overlay {
  position: fixed;
  inset: 0;
  background: rgba(238, 236, 227, 0.97);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 999;
  gap: 20px;
}

.upload-box {
  border: 2px dashed var(--accent);
  border-radius: 20px;
  padding: 56px 80px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  transition: all .2s;
  background: rgba(238, 236, 227, 0.97);
}
.upload-box:hover {
  background: rgba(173, 162, 93, 0.12);
  border-style: solid;
}
.upload-box svg {
  width: 52px;
  height: 52px;
  color: var(--accent);
}
.upload-box h2 { font-size: 20px; font-weight: 600; }
.upload-box p { font-size: 13px; color: var(--text2); }
.upload-box .sub { font-size: 11px; color: #444; }

#file-input { display: none; }

/* ─── CANVAS SIZE MODAL ───────────────────────────── */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 5, 12, .8);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
}

.modal-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  width: 460px;
  max-width: 95vw;
  box-shadow: 0 20px 80px rgba(0,0,0,.7);
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--surface2);
}

.modal-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: .3px;
}

.modal-close {
  background: none;
  border: 1px solid var(--border);
  color: var(--text2);
  width: 28px;
  height: 28px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .15s;
}
.modal-close:hover { border-color: var(--accent2); color: var(--accent2); }

.modal-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.preset-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.preset-btn {
  padding: 10px 6px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text);
  cursor: pointer;
  font-size: 11px;
  font-family: 'DM Sans', sans-serif;
  text-align: center;
  line-height: 1.5;
  transition: all .15s;
}
.preset-btn small {
  display: block;
  font-size: 9px;
  color: var(--text2);
  margin-top: 2px;
}
.preset-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(108,99,255,.1);
}

.modal-sep {
  text-align: center;
  font-size: 10px;
  color: var(--text2);
  letter-spacing: .5px;
  position: relative;
}
.modal-sep::before, .modal-sep::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 28%;
  height: 1px;
  background: var(--border);
}
.modal-sep::before { left: 0; }
.modal-sep::after { right: 0; }

.custom-size-row {
  display: flex;
  align-items: flex-end;
  gap: 10px;
}

.size-field {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.size-field label {
  font-size: 10px;
  color: var(--text2);
  font-weight: 500;
}

.size-swap {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  color: var(--text2);
  flex-shrink: 0;
  margin-bottom: 1px;
  transition: all .15s;
  user-select: none;
}
.size-swap:hover { border-color: var(--accent); color: var(--accent); }

.modal-note {
  font-size: 10px;
  color: var(--text2);
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  line-height: 1.5;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding-top: 4px;
}

/* ─── STATUS ──────────────────────────────────────── */

#status {
  position: fixed;
  bottom: 16px;
  right: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 14px;
  font-size: 12px;
  color: var(--text2);
  z-index: 200;
  transition: opacity .3s;
  pointer-events: none;
}

/* ─── LOADING ─────────────────────────────────────── */

#loading {
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 18, .75);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.spinner {
  width: 42px;
  height: 42px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }