/* ==========================================================================
   PDF Toolkit — Design System
   A restrained, premium visual language: elegant, calm, high-contrast,
   built for long daily use. All original selectors/classes preserved
   exactly (JS-driven states: .active .dragover .selected .show
   .filtered-out .search-match .unlocked data-theme="dark" .no-anim).
   ========================================================================== */

:root {
  /* ---- Brand & neutral ramps (indigo/violet) ---- */
  --clr-accent-50:  #f5f3ff;
  --clr-accent-100: #ede9fe;
  --clr-accent-200: #ddd6fe;
  --clr-accent-500: #6d5bf5;
  --clr-accent-600: #5b3ff0;
  --clr-accent-700: #4c2fd6;

  --clr-neutral-0:   #ffffff;
  --clr-neutral-50:  #f8f8fb;
  --clr-neutral-100: #f1f0f7;
  --clr-neutral-150: #e9e7f2;
  --clr-neutral-200: #dedcea;
  --clr-neutral-300: #c8c5da;
  --clr-neutral-500: #79758f;
  --clr-neutral-600: #5c5876;
  --clr-neutral-700: #3d3a52;
  --clr-neutral-900: #191730;

  --clr-success-500: #3f8f5f;
  --clr-success-soft: #eaf5ee;
  --clr-danger-500:  #c1483c;
  --clr-danger-soft: #fbeae7;
  --clr-warning-500: #b8863a;
  --clr-warning-soft: #fbf1e2;

  /* ---- Semantic surface tokens (theme-swappable) ---- */
  --bg: var(--clr-neutral-50);
  --surface: var(--clr-neutral-0);
  --surface-2: var(--clr-neutral-100);
  --surface-3: var(--clr-neutral-150);
  --border: var(--clr-neutral-200);
  --border-strong: var(--clr-neutral-300);
  --text: var(--clr-neutral-900);
  --text-secondary: var(--clr-neutral-700);
  --muted: var(--clr-neutral-500);

  --accent: var(--clr-accent-500);
  --accent-hover: var(--clr-accent-600);
  --accent-active: var(--clr-accent-700);
  --accent-soft: var(--clr-accent-50);
  --accent-soft-strong: var(--clr-accent-100);
  --accent-on: #ffffff;
  --danger: var(--clr-danger-500);
  --danger-soft: var(--clr-danger-soft);
  --success: var(--clr-success-500);
  --success-soft: var(--clr-success-soft);

  /* ---- Elevation ---- */
  --shadow-rgb: 43, 41, 37;
  --shadow-xs: 0 1px 2px rgba(var(--shadow-rgb), .05);
  --shadow-sm: 0 1px 3px rgba(var(--shadow-rgb), .06), 0 1px 2px rgba(var(--shadow-rgb), .04);
  --shadow-md: 0 6px 20px rgba(var(--shadow-rgb), .07), 0 2px 6px rgba(var(--shadow-rgb), .05);
  --shadow-lg: 0 16px 40px rgba(var(--shadow-rgb), .11), 0 4px 12px rgba(var(--shadow-rgb), .06);
  --shadow-focus: 0 0 0 3px var(--accent-soft-strong);
  --shadow-inset-top: inset 0 1px 0 rgba(255,255,255,.55);

  /* ---- Glass (appbar, modal, toast, search, cards) ---- */
  --glass-bg: rgba(255, 255, 255, .68);
  --glass-border: rgba(255, 255, 255, .6);
  --glass-blur: 18px;
  --card-glass-bg: rgba(255, 255, 255, .58);

  /* ---- Layout ---- */
  --content-max: 1360px;

  /* ---- Accent glow (futuristic hover/focus accents) ---- */
  --accent-rgb: 109, 91, 245;
  --glow-sm: 0 0 0 1px rgba(var(--accent-rgb), .18), 0 6px 18px -6px rgba(var(--accent-rgb), .4);
  --glow-md: 0 0 0 1px rgba(var(--accent-rgb), .16), 0 14px 34px -10px rgba(var(--accent-rgb), .45);

  /* ---- Aurora background blobs ---- */
  --aurora-1: rgba(109, 91, 245, .18);
  --aurora-2: rgba(56, 189, 248, .14);
  --aurora-3: rgba(236, 72, 190, .1);

  /* ---- Cursor spotlight (JS-driven, set on :root) ---- */
  --cursor-x: 50%;
  --cursor-y: 50%;

  /* ---- Spacing (8px grid, 4px half-steps) ---- */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-7: 28px;
  --sp-8: 32px;
  --sp-10: 40px;
  --sp-12: 48px;

  /* ---- Radius ---- */
  --r-sm: 7px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-xl: 20px;
  --r-full: 999px;

  /* ---- Typography ---- */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, Roboto, sans-serif;
  --text-xs: 12px;
  --text-sm: 13.5px;
  --text-base: 14.5px;
  --text-md: 16px;
  --text-lg: 20px;
  --text-xl: 28px;
  --text-2xl: 38px;
  --lh-tight: 1.2;
  --lh-normal: 1.5;
  --lh-relaxed: 1.7;

  /* ---- Motion ---- */
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --ease-in-out: cubic-bezier(.4, 0, .2, 1);
  --dur-fast: 120ms;
  --dur-base: 190ms;
  --dur-slow: 320ms;
}

/* ==========================================================================
   Dark theme — layered surfaces, not a simple inversion
   ========================================================================== */
:root[data-theme="dark"] {
  --bg: #17150f;
  --surface: #211e19;
  --surface-2: #2a2620;
  --surface-3: #332e26;
  --border: #3c362d;
  --border-strong: #4a4336;
  --text: #f3efe6;
  --text-secondary: #cfc9ba;
  --muted: #9a9384;

  --accent: #8b7cf6;
  --accent-hover: #9d90f8;
  --accent-active: #b0a5fa;
  --accent-soft: #221f3d;
  --accent-soft-strong: #2c2850;
  --accent-on: #100e21;
  --danger: #f2795f;
  --danger-soft: #362221;
  --success: #6bd6a8;
  --success-soft: #1a2b28;
  --warning: #e0b768;
  --warning-soft: #332a1a;

  --shadow-rgb: 0, 0, 0;
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, .3);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, .35), 0 1px 2px rgba(0, 0, 0, .25);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, .38), 0 2px 8px rgba(0, 0, 0, .3);
  --shadow-lg: 0 20px 48px rgba(0, 0, 0, .48), 0 6px 16px rgba(0, 0, 0, .35);
  --shadow-focus: 0 0 0 3px var(--accent-soft-strong);
  --shadow-inset-top: inset 0 1px 0 rgba(255,255,255,.05);

  --glass-bg: rgba(19, 17, 34, .66);
  --glass-border: rgba(255, 255, 255, .09);
  --card-glass-bg: rgba(30, 27, 51, .55);

  --accent-rgb: 139, 124, 246;
  --glow-sm: 0 0 0 1px rgba(var(--accent-rgb), .28), 0 6px 20px -6px rgba(var(--accent-rgb), .5);
  --glow-md: 0 0 0 1px rgba(var(--accent-rgb), .24), 0 16px 38px -10px rgba(var(--accent-rgb), .55);

  --aurora-1: rgba(139, 124, 246, .2);
  --aurora-2: rgba(56, 189, 248, .14);
  --aurora-3: rgba(236, 72, 190, .12);
}

/* A dedicated legibility bump: the base --muted value is a touch too low
   contrast against the darkest dark-mode surfaces for small UI text. */
:root[data-theme="dark"] { --muted: #a9a4c4; }
:root[data-theme="dark"] { --bg: #100e1f; --surface: #191730; --surface-2: #201c3c; --surface-3: #292447; --border: #2f2a4d; --border-strong: #3c3660; --text: #f1efff; --text-secondary: #cdc8e8; }

/* ==========================================================================
   Base
   ========================================================================== */
* { box-sizing: border-box; }

*:focus { outline: none; }
*:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
  border-radius: var(--r-sm);
}

html {
  background: var(--bg);
  scroll-behavior: smooth;
  transition: background var(--dur-slow) var(--ease-in-out), color var(--dur-slow) var(--ease-in-out);
}
html.no-anim, html.no-anim *, html.no-anim *::before, html.no-anim *::after {
  transition: none !important;
  animation: none !important;
}

body {
  position: relative;
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  padding: var(--sp-6) clamp(16px, 4vw, 56px) 96px;
  line-height: var(--lh-normal);
  overflow-x: hidden;
}

/* ---- Ambient aurora backdrop: fixed, blurred, non-interactive ---- */
.bg-aurora {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}
.bg-aurora span {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: .9;
  will-change: transform;
  animation: auroraDrift 26s var(--ease-in-out) infinite alternate;
}
.bg-aurora span:nth-child(1) {
  width: 46vw; height: 46vw;
  top: -14vw; left: -10vw;
  background: var(--aurora-1);
  animation-duration: 24s;
}
.bg-aurora span:nth-child(2) {
  width: 38vw; height: 38vw;
  top: 8vw; right: -12vw;
  background: var(--aurora-2);
  animation-duration: 30s;
  animation-delay: -6s;
}
.bg-aurora span:nth-child(3) {
  width: 34vw; height: 34vw;
  bottom: -16vw; left: 22vw;
  background: var(--aurora-3);
  animation-duration: 34s;
  animation-delay: -12s;
}
@keyframes auroraDrift {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(4vw, 3vw) scale(1.08); }
}
@media (prefers-reduced-motion: reduce) {
  .bg-aurora span { animation: none; }
}
html.no-anim .bg-aurora span { animation: none; }

/* ---- Slim, theme-aware scrollbar ---- */
html { scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: var(--r-full); border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

.wrap { max-width: var(--content-max); margin: 0 auto; }

h1 {
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -.01em;
  margin: 0 0 4px;
  color: var(--text);
}
p.sub {
  color: var(--muted);
  margin-top: 0;
  margin-bottom: var(--sp-6);
  font-size: var(--text-base);
  line-height: var(--lh-normal);
}
h2.tool-title {
  font-size: var(--text-lg);
  font-weight: 800;
  letter-spacing: -.01em;
  margin: 0 0 6px;
}
p.tool-sub {
  color: var(--muted);
  margin-top: 0;
  margin-bottom: var(--sp-6);
  font-size: var(--text-base);
  line-height: var(--lh-relaxed);
}

::selection { background: var(--accent-soft-strong); color: var(--text); }

/* ==========================================================================
   Tabs
   ========================================================================== */
.tabs {
  display: flex;
  gap: var(--sp-1);
  flex-wrap: wrap;
  margin-bottom: var(--sp-6);
  border-bottom: 1px solid var(--border);
  padding-bottom: var(--sp-3);
}
.tab-btn {
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 8px 13px;
  border-radius: var(--r-md);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}
.tab-btn:hover { background: var(--surface-2); color: var(--text); }
.tab-btn:active { transform: scale(.96); }
.tab-btn.active {
  background: var(--accent);
  color: var(--accent-on);
  box-shadow: var(--shadow-sm);
}

.panel { display: none; animation: fadeUp var(--dur-slow) var(--ease-out); }
.panel.active { display: block; }
.panel.active:not(#panel-home) { max-width: 820px; margin: 0 auto; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Dropzone
   ========================================================================== */
.dropzone {
  border: 2px dashed var(--border-strong);
  border-radius: var(--r-xl);
  padding: clamp(32px, 6vw, 56px) var(--sp-6);
  text-align: center;
  background: var(--surface);
  cursor: pointer;
  transition: border-color var(--dur-base) var(--ease-out),
              background var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out);
}
.dropzone:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: var(--shadow-sm);
}
.dropzone.dragover {
  border-color: var(--accent);
  background: var(--accent-soft-strong);
  border-style: solid;
  transform: scale(1.012);
  box-shadow: var(--shadow-md);
}
.dropzone input { display: none; }
.dropzone .icon {
  font-size: 28px;
  margin-bottom: var(--sp-2);
  display: inline-block;
  transition: transform var(--dur-base) var(--ease-out);
}
.dropzone:hover .icon { transform: translateY(-2px); }
.dropzone.dragover .icon { transform: scale(1.1); }
.dropzone .main-txt { font-weight: 600; font-size: var(--text-base); color: var(--text); }
.dropzone .sub-txt { color: var(--muted); font-size: var(--text-xs); margin-top: 4px; }

/* ==========================================================================
   File / page list
   ========================================================================== */
ul.item-list {
  list-style: none;
  padding: 0;
  margin: var(--sp-5) 0;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}
ul.item-list li {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: var(--sp-3);
  transition: border-color var(--dur-base) var(--ease-out),
              background var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out);
}
ul.item-list li:hover { box-shadow: var(--shadow-xs); border-color: var(--border-strong); }
ul.item-list li.selected {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: 0 0 0 1px var(--accent) inset;
}
ul.item-list li .thumb {
  width: 52px;
  height: 68px;
  object-fit: cover;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  flex-shrink: 0;
  background: var(--surface-2);
}
ul.item-list li .info { flex: 1; min-width: 0; }
ul.item-list li .name {
  font-size: var(--text-sm);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text);
}
ul.item-list li .tag { font-size: var(--text-xs); color: var(--muted); }
ul.item-list li .controls { display: flex; gap: 4px; flex-shrink: 0; align-items: center; }

ul.item-list li button.icon-btn {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--r-sm);
  width: 30px;
  height: 30px;
  cursor: pointer;
  font-size: var(--text-sm);
  color: var(--text);
  transition: background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}
ul.item-list li button.icon-btn:hover { background: var(--surface-2); border-color: var(--border-strong); }
ul.item-list li button.icon-btn:active { transform: scale(.92); }
ul.item-list li button.icon-btn.remove:hover {
  background: var(--danger-soft);
  border-color: var(--danger);
  color: var(--danger);
}
ul.item-list li input[type="checkbox"] {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  accent-color: var(--accent);
  cursor: pointer;
}

.empty-msg {
  text-align: center;
  color: var(--muted);
  font-size: var(--text-sm);
  padding: var(--sp-6) 0;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.actions { display: flex; align-items: center; gap: var(--sp-3); margin-top: var(--sp-4); flex-wrap: wrap; }

.btn {
  position: relative;
  overflow: hidden;
  border: none;
  border-radius: var(--r-md);
  padding: 12px 20px;
  min-height: 44px;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: .002em;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out);
}
.btn:active { transform: scale(.97); }
.btn::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(circle at var(--ripple-x, 50%) var(--ripple-y, 50%), rgba(255,255,255,.5), transparent 60%);
  opacity: 0;
  transition: opacity .5s var(--ease-out);
  pointer-events: none;
}
.btn:active::after { opacity: .5; transition: none; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: var(--accent-on);
  box-shadow: var(--shadow-xs);
}
.btn-primary:hover { box-shadow: var(--glow-sm); transform: translateY(-1px); }
.btn-primary:active { background: var(--accent-active); transform: scale(.97); }
.btn-primary:disabled {
  background: var(--surface-3);
  color: var(--muted);
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

.btn-secondary { background: transparent; color: var(--text-secondary); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--surface-2); border-color: var(--accent); color: var(--text); box-shadow: var(--shadow-xs); }

.status {
  font-size: var(--text-xs);
  color: var(--muted);
  margin-top: var(--sp-3);
  min-height: 16px;
  transition: color var(--dur-base) var(--ease-out);
}

/* ==========================================================================
   Form fields
   ========================================================================== */
.field { margin-top: var(--sp-4); }
.field label { display: block; font-size: var(--text-sm); font-weight: 600; margin-bottom: 6px; color: var(--text); }

.field input[type="text"],
.field input[type="password"],
.field select {
  width: 100%;
  max-width: 360px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  font-size: var(--text-sm);
  font-family: var(--font-sans);
  background: var(--surface);
  color: var(--text);
  transition: border-color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
}
.field input[type="text"]:hover,
.field input[type="password"]:hover,
.field select:hover { border-color: var(--border-strong); }
.field input[type="text"]:focus,
.field input[type="password"]:focus,
.field select:focus {
  border-color: var(--accent);
  box-shadow: var(--shadow-focus);
}
.field input::placeholder { color: var(--muted); opacity: 1; }
.field .hint { font-size: var(--text-xs); color: var(--muted); margin-top: 5px; }
.field-row { display: flex; gap: var(--sp-4); flex-wrap: wrap; }

.radio-group { display: flex; flex-direction: column; gap: var(--sp-2); margin-top: 6px; }
.radio-group label {
  font-size: var(--text-sm);
  font-weight: 400;
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  cursor: pointer;
  color: var(--text);
}
.radio-group input[type="radio"] { accent-color: var(--accent); width: 16px; height: 16px; }

/* Range slider — refined track + thumb, both themes */
input[type="range"] {
  width: 100%;
  max-width: 320px;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: var(--border);
  border-radius: var(--r-full);
  outline: none;
  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(--surface);
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur-fast) var(--ease-out);
}
input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.15); }
input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--surface);
  box-shadow: var(--shadow-sm);
}
input[type="range"]::-moz-range-track { background: var(--border); height: 4px; border-radius: var(--r-full); }

/* ==========================================================================
   Download card
   ========================================================================== */
.download-card {
  display: none;
  margin-top: var(--sp-5);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--sp-5);
  box-shadow: var(--shadow-sm);
}
.download-card.show { display: block; animation: fadeUp var(--dur-slow) var(--ease-out); }
.download-card .field { margin-top: 0; }
.download-card .dl-row { display: flex; gap: var(--sp-3); margin-top: var(--sp-3); align-items: center; flex-wrap: wrap; }
.download-card .dl-row input[type="text"] { flex: 1; min-width: 180px; }
.size-note { font-size: var(--text-xs); color: var(--muted); margin-top: 6px; }

/* ==========================================================================
   Modal (crop, upgrade, etc.) — restrained glass overlay
   ========================================================================== */
/* ==========================================================================
   Document preview "paper" surface — always a light, print-like sheet
   regardless of app theme, since DOCX content can carry its own explicit
   text colors (e.g. black) that would go invisible on a dark surface.
   ========================================================================== */
.docx-preview-paper {
  background: #ffffff;
  color: #1f1d19;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-md);
}

.modal-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(20, 18, 15, 0.5);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 50;
  align-items: center;
  justify-content: center;
  padding: var(--sp-5);
  animation: overlayIn var(--dur-base) var(--ease-out);
}
.modal-overlay.show { display: flex; }

@keyframes overlayIn { from { opacity: 0; } to { opacity: 1; } }

.modal-box {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(160%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(160%);
  border: 1px solid var(--glass-border);
  color: var(--text);
  border-radius: var(--r-lg);
  padding: var(--sp-5);
  max-width: 560px;
  width: 100%;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg), var(--shadow-inset-top);
  animation: modalIn var(--dur-slow) var(--ease-out);
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(10px) scale(.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-box h3 { margin: 0 0 var(--sp-3); font-size: var(--text-md); font-weight: 700; }
.crop-container {
  max-height: 440px;
  overflow: hidden;
  background: var(--clr-neutral-900);
  border-radius: var(--r-md);
}
.crop-container img { display: block; max-width: 100%; }
.modal-actions { display: flex; justify-content: flex-end; gap: var(--sp-3); margin-top: var(--sp-4); }

.divider { height: 1px; background: var(--border); margin: var(--sp-6) 0; }

/* ==========================================================================
   App bar — floating glass navigation
   ========================================================================== */
.appbar {
  max-width: var(--content-max);
  margin: 0 auto var(--sp-7);
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  padding: 12px 18px;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-md), var(--shadow-inset-top);
  position: sticky;
  top: var(--sp-3);
  z-index: 40;
  transition: box-shadow var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}
.appbar .brand { display: flex; align-items: center; gap: var(--sp-2); cursor: pointer; flex-shrink: 0; min-height: 44px; }
.appbar .brand .logo {
  font-size: 20px;
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--r-md);
  background: linear-gradient(135deg, var(--accent), #38bdf8);
  filter: drop-shadow(0 4px 10px rgba(var(--accent-rgb), .4));
}
.appbar .brand .name {
  font-weight: 800;
  font-size: var(--text-md);
  letter-spacing: -.01em;
  background: linear-gradient(120deg, var(--text) 40%, var(--accent) 120%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.search-wrap { position: relative; flex: 1; min-width: 0; }
.search-wrap input {
  width: 100%;
  padding: 9px 12px 9px 34px;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: var(--text-sm);
  font-family: var(--font-sans);
  transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.search-wrap input::placeholder { color: var(--muted); }
.search-wrap input:focus { border-color: var(--accent); box-shadow: var(--glow-sm); }
.search-wrap .search-icon {
  position: absolute; left: 11px; top: 50%; transform: translateY(-50%);
  font-size: var(--text-sm); color: var(--muted); pointer-events: none;
}

.icon-toggle {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: var(--r-md);
  width: 44px;
  height: 44px;
  cursor: pointer;
  font-size: var(--text-md);
  flex-shrink: 0;
  transition: background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}
.icon-toggle:hover { background: var(--accent-soft); border-color: var(--accent); }
.icon-toggle:active { transform: scale(.92) rotate(-8deg); }

.pro-pill {
  flex-shrink: 0;
  font-size: var(--text-xs);
  font-weight: 700;
  padding: 10px 16px;
  min-height: 44px;
  border-radius: var(--r-full);
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: var(--accent-on);
  cursor: pointer;
  white-space: nowrap;
  border: none;
  box-shadow: var(--shadow-sm);
  transition: background var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.pro-pill:hover { background: var(--accent-hover); box-shadow: var(--glow-sm); transform: translateY(-1px); }
.pro-pill:active { transform: scale(.95); }
.pro-pill.unlocked { background: transparent; color: var(--accent); border: 1px solid var(--accent); box-shadow: none; }

/* ==========================================================================
   Back link / tool heading
   ========================================================================== */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  margin-bottom: var(--sp-3);
  background: none;
  border: none;
  padding: 0;
  transition: color var(--dur-fast) var(--ease-out), gap var(--dur-fast) var(--ease-out);
}
.back-link:hover { color: var(--accent); gap: 8px; }
.tool-heading-row { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-3); }

.pro-badge {
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .04em;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  padding: 3px 8px;
  border-radius: var(--r-sm);
  vertical-align: middle;
}
.pro-lock-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  background: var(--accent-soft);
  border: 1px solid var(--accent-soft-strong);
  border-radius: var(--r-md);
  padding: var(--sp-3) var(--sp-4);
  margin-bottom: var(--sp-5);
  font-size: var(--text-sm);
}
.pro-lock-banner button { flex-shrink: 0; }

/* ==========================================================================
   Home dashboard
   ========================================================================== */
.home-section { margin-bottom: var(--sp-7); }
.home-section h3 {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--muted);
  margin: 0 0 var(--sp-3);
  font-weight: 700;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: var(--sp-5);
}

.tool-card {
  position: relative;
  overflow: hidden;
  background: var(--card-glass-bg);
  backdrop-filter: blur(10px) saturate(160%);
  -webkit-backdrop-filter: blur(10px) saturate(160%);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: var(--sp-5);
  cursor: pointer;
  text-align: left;
  min-height: 44px;
  transition: transform var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              background var(--dur-base) var(--ease-out);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.tool-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, var(--accent), transparent 40%, transparent 60%, #38bdf8);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease-out);
  pointer-events: none;
}
.tool-card:hover::after { opacity: 1; }
.tool-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(var(--accent-rgb), .14), transparent 55%);
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease-out);
  pointer-events: none;
}
.tool-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: var(--glow-md);
}
.tool-card:hover::before { opacity: 1; }
.tool-card:active { transform: translateY(-1px) scale(.99); }
.tool-card .t-icon {
  font-size: 24px;
  transition: transform var(--dur-base) var(--ease-out);
  display: inline-flex;
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-md);
  background: var(--accent-soft);
}
.tool-card:hover .t-icon { transform: scale(1.08) rotate(-4deg); }
.tool-card .t-name { font-weight: 700; font-size: var(--text-sm); color: var(--text); position: relative; }
.tool-card .t-desc { font-size: var(--text-xs); color: var(--muted); line-height: var(--lh-relaxed); position: relative; }
.tool-card .t-lock { position: absolute; top: 10px; right: 10px; font-size: var(--text-xs); }
.tool-card.filtered-out { display: none; }
.tool-card.search-match {
  border-color: var(--accent);
  box-shadow: var(--glow-sm);
}

.coming-soon-card {
  background: var(--surface);
  border: 1.5px dashed var(--border);
  border-radius: var(--r-lg);
  padding: var(--sp-4);
  text-align: center;
  color: var(--muted);
  font-size: var(--text-xs);
  cursor: default;
  opacity: .8;
}
.coming-soon-card .cs-icon { font-size: 18px; display: block; margin-bottom: 6px; }
.coming-soon-card .cs-tag {
  display: inline-block;
  margin-top: 6px;
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  background: var(--surface-3);
  color: var(--muted);
  padding: 3px 8px;
  border-radius: var(--r-full);
}

.chip-row { display: flex; gap: var(--sp-2); flex-wrap: wrap; }
.chip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  padding: 7px 13px;
  font-size: var(--text-xs);
  font-weight: 600;
  cursor: pointer;
  color: var(--text-secondary);
  transition: border-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out);
}
.chip:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.chip:active { transform: scale(.95); }

.quick-actions { display: flex; gap: var(--sp-3); flex-wrap: wrap; }

.home-hero {
  position: relative;
  overflow: hidden;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(160%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(160%);
  border: 1px solid var(--glass-border);
  border-radius: 28px;
  padding: clamp(36px, 6vw, 72px) clamp(24px, 5vw, 64px);
  margin-bottom: var(--sp-8);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-6);
  flex-wrap: wrap;
  box-shadow: var(--shadow-lg), var(--shadow-inset-top);
  text-align: left;
}
.home-hero::before {
  content: "";
  position: absolute;
  top: -70%; right: -16%;
  width: 520px; height: 520px;
  background: radial-gradient(circle, rgba(var(--accent-rgb), .38), transparent 70%);
  filter: blur(10px);
  pointer-events: none;
}
.home-hero::after {
  content: "";
  position: absolute;
  bottom: -50%; left: -10%;
  width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(56, 189, 248, .22), transparent 70%);
  filter: blur(10px);
  pointer-events: none;
}
.home-hero .hh-text { position: relative; max-width: 640px; }
.home-hero .hh-text h2 {
  margin: 0 0 10px;
  font-size: clamp(var(--text-xl), 4vw, var(--text-2xl));
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: var(--lh-tight);
  background: linear-gradient(120deg, var(--text) 30%, var(--accent) 110%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.home-hero .hh-text p { margin: 0; color: var(--muted); font-size: var(--text-md); }
.home-hero .hh-meta { position: relative; font-size: var(--text-xs); color: var(--muted); text-align: right; }
.home-hero .hh-meta div:first-child {
  font-weight: 700; color: var(--accent); margin-bottom: 4px;
  display: inline-block; padding: 4px 12px; border-radius: var(--r-full);
  background: var(--accent-soft);
}

/* ---- Hero upload dropzone: large, centered, premium ---- */
.hero-upload {
  position: relative;
  margin: 0 0 var(--sp-8);
  border-radius: 28px;
  padding: clamp(40px, 7vw, 80px) var(--sp-6);
  text-align: center;
  border: 2px dashed var(--border-strong);
  background: linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);
  cursor: pointer;
  transition: border-color var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.hero-upload:hover { border-color: var(--accent); box-shadow: var(--glow-md); transform: translateY(-2px); }
.hero-upload.dragover { border-style: solid; border-color: var(--accent); background: var(--accent-soft); transform: scale(1.01); }
.hero-upload .hu-icon {
  width: 72px; height: 72px; margin: 0 auto var(--sp-4);
  display: flex; align-items: center; justify-content: center;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--accent), #38bdf8);
  box-shadow: var(--glow-md);
  font-size: 32px;
}
.hero-upload .hu-title { font-size: var(--text-lg); font-weight: 800; margin-bottom: 6px; }
.hero-upload .hu-sub { color: var(--muted); font-size: var(--text-sm); }

/* ==========================================================================
   Settings page
   ========================================================================== */
.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  padding: var(--sp-4) 0;
  border-bottom: 1px solid var(--border);
}
.settings-row:last-child { border-bottom: none; }
.settings-row .sr-label { font-size: var(--text-sm); font-weight: 600; color: var(--text); }
.settings-row .sr-hint { font-size: var(--text-xs); color: var(--muted); margin-top: 2px; }

.switch { position: relative; display: inline-block; width: 42px; height: 24px; flex-shrink: 0; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch .slider {
  position: absolute; cursor: pointer; inset: 0;
  background: var(--border-strong);
  border-radius: var(--r-full);
  transition: background var(--dur-base) var(--ease-out);
}
.switch .slider::before {
  content: "";
  position: absolute;
  height: 18px; width: 18px;
  left: 3px; top: 3px;
  background: var(--clr-neutral-0);
  border-radius: 50%;
  box-shadow: var(--shadow-xs);
  transition: transform var(--dur-base) var(--ease-out);
}
.switch input:checked + .slider { background: var(--accent); }
.switch input:checked + .slider::before { transform: translateX(18px); }
.switch input:focus-visible + .slider { box-shadow: var(--shadow-focus); }

.about-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: var(--sp-4);
  font-size: var(--text-xs);
  color: var(--muted);
  line-height: var(--lh-relaxed);
}
.about-box strong { color: var(--text); }

/* ==========================================================================
   Upgrade modal
   ========================================================================== */
.upgrade-box {
  background: transparent;
  color: var(--text);
  max-width: 380px;
  text-align: center;
}
.upgrade-box h3 { font-size: var(--text-lg); font-weight: 700; margin-bottom: 6px; }
.upgrade-sub { color: var(--muted); font-size: var(--text-sm); margin: 0 0 var(--sp-4); }
.upgrade-list {
  list-style: none;
  padding: var(--sp-4);
  margin: 0 0 var(--sp-5);
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  background: var(--surface-2);
  border-radius: var(--r-md);
}
.upgrade-list li { font-size: var(--text-sm); padding-left: 24px; position: relative; }
.upgrade-list li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.upgrade-price {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-5);
  padding-bottom: var(--sp-5);
  border-bottom: 1px solid var(--border);
}
.badge-lifetime {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  background: var(--accent-soft-strong);
  color: var(--accent);
  padding: 4px 10px;
  border-radius: var(--r-full);
}
.upgrade-price .price { font-size: 27px; font-weight: 800; letter-spacing: -.01em; color: var(--accent); }

/* QR card — a real elevated white card, not a dashed placeholder,
   since a real <img> now lives inside it. */
.qr-placeholder {
  width: 200px;
  margin: 0 auto var(--sp-2);
  padding: var(--sp-4);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: var(--sp-2);
  background: var(--clr-neutral-0);
  box-shadow: var(--shadow-md);
}
:root[data-theme="dark"] .qr-placeholder { background: var(--clr-neutral-0); }
.qr-placeholder img {
  width: 160px; height: 160px;
  border-radius: var(--r-sm);
  display: block;
}
.qr-placeholder span { font-size: var(--text-xs); color: var(--muted); margin-top: 0; }
.upi-id {
  font-size: var(--text-xs);
  color: var(--muted);
  margin-bottom: var(--sp-5);
  padding-bottom: var(--sp-5);
  border-bottom: 1px solid var(--border);
}
.upi-id strong { color: var(--text); }
.key-entry { margin-top: 0; display: flex; flex-direction: column; gap: var(--sp-2); }
.key-entry input {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--surface);
  color: var(--text);
  font-size: var(--text-sm);
  text-align: center;
  letter-spacing: .04em;
  transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.key-entry input:focus { border-color: var(--accent); box-shadow: var(--shadow-focus); }
:root[data-theme="dark"] .key-entry input { background: var(--surface-2); }
.key-status { font-size: var(--text-xs); min-height: 16px; font-weight: 600; }
.key-status.ok { color: var(--success); }
.key-status.err { color: var(--danger); }

/* ==========================================================================
   Toasts — glass, subtle motion
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  align-items: center;
}
.toast {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(160%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(160%);
  border: 1px solid var(--glass-border);
  color: var(--text);
  padding: 11px 18px;
  border-radius: var(--r-md);
  font-size: var(--text-sm);
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(10px) scale(.97);
  transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}
.toast.show { opacity: 1; transform: translateY(0) scale(1); }

.page-thumb-mini { width: 46px; height: 60px; }

/* ==========================================================================
   Bonus utilities (opt-in only — inert unless referenced by markup;
   safe to leave in place even if unused)
   ========================================================================== */
.spinner {
  width: 16px; height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  display: inline-block;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--surface-3);
  border-radius: var(--r-full);
  overflow: hidden;
}
.progress-bar .progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: var(--r-full);
  transition: width var(--dur-slow) var(--ease-out);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* ==========================================================================
   Cursor spotlight — soft glow following the pointer (desktop only, JS-driven
   via --cursor-x/--cursor-y custom properties on :root). Inert on touch.
   ========================================================================== */
.cursor-spotlight {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background: radial-gradient(600px circle at var(--cursor-x) var(--cursor-y),
              rgba(var(--accent-rgb), .07), transparent 60%);
  opacity: 0;
  transition: opacity .3s var(--ease-out);
}
.cursor-spotlight.active { opacity: 1; }
html.no-anim .cursor-spotlight { display: none; }

/* Magnetic elements get a subtle pointer-tracked tilt via inline transform
   set by JS; this just ensures a smooth easing back to rest. */
.magnetic { transition: transform .25s var(--ease-out); will-change: transform; }

/* ---- Skeleton loading blocks ---- */
.skeleton {
  position: relative;
  overflow: hidden;
  background: var(--surface-2);
  border-radius: var(--r-md);
}
.skeleton::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(var(--accent-rgb), .18), transparent);
  transform: translateX(-100%);
  animation: skeletonShine 1.4s ease-in-out infinite;
}
@keyframes skeletonShine { to { transform: translateX(100%); } }

/* ---- Progress UI (percentage / current page / ETA) ---- */
.progress-detail {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--muted);
  margin-top: 6px;
}

/* ---- Larger comfortable checkboxes for touch ---- */
ul.item-list li input[type="checkbox"] { width: 20px; height: 20px; }

/* Ensure interactive icon buttons meet the 44px comfortable target on touch,
   while keeping their compact visual footprint on desktop via padding. */
@media (pointer: coarse) {
  ul.item-list li button.icon-btn { width: 40px; height: 40px; }
  .btn { min-height: 46px; }
}