/* =====================================================================
   KEYPITCH — style.css
   Sections :
     1. Reset & Variables
     2. Base & Typography
     3. Navbar  (logo · links · language · auth buttons)
     4. Page Layout  (header)
     5. Upload Zone
     6. Glass Cards  (shared container for all cards)
     7. Audio / Video Preview
     8. Range Inputs
     9. Slider Controls  (Tone · Reverb · Speed · Pitch — single CSS)
    10. Effect Pads
    11. Download Button
    12. Footer
    13. Utilities
    14. Responsive
   ===================================================================== */


/* ----- 1. Reset & Variables ---------------------------------------- */

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

:root {
  /* Surfaces */
  --glass:        rgba(255,255,255,0.08);
  --glass-border: rgba(255,255,255,0.16);
  --glass-hover:  rgba(255,255,255,0.13);

  /* Brand — purple palette */
  --accent:       #9B4DFF;               /* primary purple   */
  --accent-dark:  #5A1DFF;               /* very dark purple */
  --accent-mid:   #7A3BCC;               /* mid purple       */
  --accent-rgb:   155,77,255;            /* rgb for rgba()   */
  --accent-glow:  rgba(155,77,255,0.38);

  /* Text */
  --text:     rgba(255,255,255,0.97);
  --text-2:   rgba(255,255,255,0.88);
  --text-off: rgba(255,255,255,0.62);

  /* Semantic */
  --danger: #FF453A;

  /* Radii */
  --radius-card: 20px;
  --radius-sm:   10px;
}


/* ----- 2. Base & Typography ---------------------------------------- */

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display',
               'Segoe UI', system-ui, sans-serif;
  background:
    radial-gradient(ellipse 70% 50% at 15% 60%, rgba(155,77,255,.18) 0%, transparent 55%),
    radial-gradient(ellipse 60% 45% at 85% 20%, rgba(90,29,255,.14)  0%, transparent 50%),
    radial-gradient(ellipse 55% 40% at 55% 90%, rgba(122,59,204,.09) 0%, transparent 50%),
    #08080f;
  min-height: 100vh;
  color: var(--text);
  overflow-x: hidden;
}

input[type="file"] { display: none; }


/* ----- 3. Navbar --------------------------------------------------- */

nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 900;
  height: 62px;
  padding: 0 28px;
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(8,8,15,.72);
  backdrop-filter: blur(32px) saturate(200%);
  -webkit-backdrop-filter: blur(32px) saturate(200%);
  border-bottom: 1px solid var(--glass-border);
}
.logo { position: relative; z-index: 2; }
.nav-right { position: relative; z-index: 2; }

/* Logo */
.logo {
  display: flex; align-items: center; gap: 9px;
  text-decoration: none; color: var(--text);
}
.logo-mark {
  width: 30px; height: 30px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(155,77,255,.45);
}
.logo-mark img {
  width: 100%; height: 100%; object-fit: cover;
}
.logo-name {
  font-size: 17px; font-weight: 700; letter-spacing: -.4px;
  background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,.65) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}

/* Nav links */
.nav-links {
  display: flex; align-items: center; gap: 2px; list-style: none;
  position: absolute; left: 50%; transform: translateX(-50%);
}
.nav-links a {
  display: block; padding: 7px 13px; border-radius: var(--radius-sm);
  text-decoration: none; font-size: 13.5px; font-weight: 500;
  color: var(--text-2);
  transition: color .18s, background .18s;
}
.nav-links a:hover {
  color: var(--text); background: var(--glass-hover);
}
.nav-links a.active {
  color: var(--text);
  background: rgba(155,77,255,.14);
  border: 1px solid rgba(155,77,255,.28);
}

/* Nav right wrapper */
.nav-right {
  display: flex; align-items: center; gap: 10px;
}

/* Language selector */
.lang-wrap { position: relative; }

.lang-btn {
  display: flex; align-items: center; gap: 5px;
  padding: 9px 11px; border-radius: var(--radius-sm);
  background: var(--glass); border: 1px solid var(--glass-border);
  color: var(--text-2); font-size: 13px; font-weight: 500;
  cursor: pointer;
  backdrop-filter: blur(12px);
  transition: color .18s, border-color .18s;
  height: 36px; box-sizing: border-box;
}
.lang-btn:hover {
  color: var(--text); border-color: rgba(255,255,255,.2);
}
.lang-btn svg { opacity: .6; }

.lang-menu {
  position: absolute; top: calc(100% + 8px); right: 0;
  min-width: 150px; border-radius: 14px;
  background: rgba(16,16,26,.96);
  backdrop-filter: blur(32px);
  border: 1px solid var(--glass-border);
  box-shadow: 0 20px 60px rgba(0,0,0,.55);
  padding: 6px; display: none;
}
.lang-menu.open { display: block; }

.lang-item {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 11px; border-radius: 8px;
  font-size: 13px; color: var(--text-2); cursor: pointer;
  transition: background .15s, color .15s;
}
.lang-item:hover {
  background: var(--glass-hover); color: var(--text);
}
.lang-item.selected { color: var(--accent); }

/* Auth buttons (Log in / Sign up) */
.auth-btns {
  display: flex; align-items: center; gap: 8px;
}
.btn-login {
  padding: 7px 16px; border-radius: var(--radius-sm);
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--text-2);
  font-size: 13px; font-weight: 600;
  cursor: pointer;
  transition: color .18s, border-color .18s, background .18s;
  height: 36px; box-sizing: border-box;
  display: flex; align-items: center; justify-content: center;
}
.btn-login:hover {
  color: var(--text);
  border-color: rgba(255,255,255,.2);
  background: var(--glass-hover);
}
.btn-signup {
  padding: 7px 16px; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border: none; color: #fff;
  font-size: 13px; font-weight: 650;
  cursor: pointer;
  box-shadow: 0 2px 12px rgba(155,77,255,.3);
  height: 36px; box-sizing: border-box;
  transition: transform .18s, box-shadow .18s;
  display: flex; align-items: center; justify-content: center;
}
.btn-signup:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 18px rgba(155,77,255,.45);
}


/* ----- 4. Page Layout ---------------------------------------------- */

main {
  max-width: 760px; margin: 0 auto;
  padding: 100px 24px 80px;
}

.page-header { text-align: center; margin-bottom: 44px; }
.page-header h1 {
  font-size: 44px; font-weight: 800; letter-spacing: -1.8px;
  background: linear-gradient(155deg, #fff 0%, rgba(255,255,255,.55) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  line-height: 1.1; margin-bottom: 10px;
}
.page-header p { color: var(--text-2); font-size: 16px; }


/* ----- 5. Upload Zone ---------------------------------------------- */

.upload-zone {
  position: relative; overflow: hidden;
  border: 2px dashed rgba(255,255,255,.22);
  border-radius: var(--radius-card);
  padding: 32px 24px; text-align: center;
  cursor: pointer;
  background: rgba(255,255,255,.04);
  transition: border-color .25s, background .25s, box-shadow .25s;
  margin-bottom: 16px;
}
.upload-zone::after {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(155,77,255,.06) 0%, transparent 70%);
  pointer-events: none;
}
.upload-zone:hover,
.upload-zone.drag-over {
  border-color: rgba(155,77,255,.55);
  background: rgba(155,77,255,.05);
  box-shadow: 0 0 40px rgba(155,77,255,.12);
}

.upload-icon-wrap {
  width: 68px; height: 68px; margin: 0 auto 18px;
  background: rgba(155,77,255,.14);
  border-radius: 20px;
  display: flex; align-items: center; justify-content: center;
  font-size: 30px;
  border: 1px solid rgba(155,77,255,.22);
}

.upload-title  { font-size: 18px; font-weight: 650; margin-bottom: 6px; }
.upload-sub    { font-size: 14px; color: var(--text-2); margin-bottom: 22px; }

.upload-cta {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 10px 22px; border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff; font-size: 14px; font-weight: 650;
  border: none; cursor: pointer;
  box-shadow: 0 4px 20px rgba(155,77,255,.35);
  transition: transform .2s, box-shadow .2s;
}
.upload-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 28px rgba(155,77,255,.48);
}

.upload-formats { margin-top: 14px; font-size: 11.5px; color: var(--text-off); }


/* ----- 6. Glass Cards (shared container) --------------------------- */
/*    Used by: Preview · Effects · Tone · Reverb · Speed · Pitch       */

.card {
  background: var(--glass);
  backdrop-filter: blur(22px) saturate(180%);
  -webkit-backdrop-filter: blur(22px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  padding: 22px 24px;
  margin-bottom: 14px;
  transition: opacity .35s, filter .35s;
}

.card.locked {
  opacity: .55;
  pointer-events: none;
  filter: saturate(.4);
}

.card-label {
  font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1.1px;
  color: var(--text-2); margin-bottom: 16px;
  display: flex; align-items: center; gap: 0;
  white-space: nowrap; overflow: hidden;
}


/* ----- 7. Audio / Video Preview ------------------------------------ */

.video-player {
  width: 100%;
  border-radius: 12px;
  margin-bottom: 14px;
  background: #000;
}

.audio-filename {
  font-size: 13.5px; color: var(--text-2);
  font-style: italic; margin-bottom: 14px;
}
.audio-filename.loaded {
  color: var(--text); font-style: normal; font-weight: 500;
}

.audio-controls { display: flex; align-items: center; gap: 13px; }

.play-btn {
  width: 44px; height: 44px; border-radius: 50%; flex-shrink: 0;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.25);
  display: flex; align-items: center; justify-content: center;
  font-size: 15px; cursor: pointer; color: var(--text);
  transition: background .18s, border-color .18s, transform .1s;
}
.play-btn:hover {
  background: rgba(155,77,255,.22);
  border-color: rgba(155,77,255,.4);
}
.play-btn:active { transform: scale(.9); }

.timeline { flex: 1; display: flex; flex-direction: column; gap: 6px; }

.time-row {
  display: flex; justify-content: space-between;
  font-size: 11px; color: var(--text-2);
  font-variant-numeric: tabular-nums;
}


/* ----- 8. Range Inputs --------------------------------------------- */

input[type="range"] {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 4px;
  background: rgba(255,255,255,.16);
  border-radius: 2px; outline: none; cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 18px; height: 18px; border-radius: 50%;
  background: #fff;
  box-shadow: 0 2px 10px rgba(0,0,0,.35);
  cursor: pointer;
  transition: transform .13s;
}
input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.22);
}
input[type="range"].accent::-webkit-slider-thumb {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
}


/* ----- 9. Slider Controls (Tone · Reverb · Speed · Pitch) ---------- */
/*    One set of rules — reused by all four slider cards.              */

.slider-block { margin-bottom: 22px; }
.slider-block:last-child { margin-bottom: 0; }

.slider-head {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 11px;
}
.slider-name { font-size: 14px; font-weight: 600; }
.slider-val {
  font-size: 13.5px; font-weight: 600; color: var(--accent);
  font-variant-numeric: tabular-nums; min-width: 70px; text-align: right;
}

.slider-row { display: flex; align-items: center; gap: 9px; }

.step-btn {
  width: 33px; height: 33px; flex-shrink: 0; border-radius: 9px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.18);
  color: var(--text); font-size: 18px; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; user-select: none;
  transition: background .15s, border-color .15s, transform .1s;
}
.step-btn:hover {
  background: rgba(155,77,255,.2);
  border-color: rgba(155,77,255,.38);
}
.step-btn:active { transform: scale(.88); }

.reset-btn {
  flex-shrink: 0; padding: 6px 12px; border-radius: 8px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  color: var(--text-2); font-size: 12px; font-weight: 500;
  cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
}
.reset-btn:hover {
  background: rgba(155,77,255,.14);
  border-color: rgba(155,77,255,.3);
  color: var(--accent);
}


/* ----- 9b. Vocal Isolator Button ----------------------------------- */

.vocal-isolator-wrap { margin-bottom: 14px; }

.vocal-isolator-btn {
  width: 100%;
  padding: 17px 28px;
  border-radius: 18px;
  background: var(--glass);
  backdrop-filter: blur(22px) saturate(180%);
  -webkit-backdrop-filter: blur(22px) saturate(180%);
  border: 1.5px solid rgba(123,47,224,.45);
  color: var(--text);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0;
  cursor: pointer;
  transition: transform .22s, background .22s, border-color .22s;
}
.vocal-btn-main {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  font-size: 17px; font-weight: 750; letter-spacing: -.2px;
}
.vocal-isolator-btn:hover:not(:disabled) {
  background: var(--glass-hover);
  border-color: rgba(123,47,224,.65);
  transform: translateY(-2px);
}
.vocal-isolator-btn:disabled {
  opacity: .45;
  pointer-events: none;
  filter: saturate(.3);
  cursor: default;
}

.vocal-hint {
  font-size: 12px;
  color: var(--text-2);
  opacity: .5;
  margin-top: 4px;
}


/* ----- 10. Style Pads ---------------------------------------------- */

.pads-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.pads-grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.pad {
  position: relative; overflow: hidden;
  padding: 18px 12px 14px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  cursor: pointer; text-align: center;
  transition: transform .2s, box-shadow .2s, border-color .2s, background .2s;
}
.pad::before {
  content: ''; position: absolute; inset: 0;
  opacity: 0; transition: opacity .2s;
}
@media (hover: hover) {
  .pad:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 28px rgba(0,0,0,.32);
  }
  .pad:hover::before { opacity: 1; }
  .pad.p-slow:hover    { border-color: rgba(90,29,255,.45);  background: rgba(90,29,255,.09);  }
  .pad.p-tiktok:hover   { border-color: rgba(255,45,85,.45); background: rgba(255,45,85,.09); }
  .pad.p-8d:hover      { border-color: rgba(48,209,88,.45);  background: rgba(48,209,88,.09);  }
  .pad.p-speedup:hover   { border-color: rgba(0,199,255,.45); background: rgba(0,199,255,.09); }
  .pad.p-garage:hover   { border-color: rgba(255,159,10,.45); background: rgba(255,159,10,.09); }
  .pad.p-eq:hover      { border-color: rgba(155,77,255,.45);  background: rgba(155,77,255,.09);  }
  .pad.p-bass:hover    { border-color: rgba(255,55,95,.45);   background: rgba(255,55,95,.09);   }
}
.pad.on {
  border-color: var(--c, rgba(155,77,255,.5));
  background: rgba(var(--cr, 155,77,255),.12);
}

/* Pad colour variants */
.pad.p-slow    { --c: rgba(90,29,255,.6);   --cr: 90,29,255;  }
.pad.p-slow::before  { background: linear-gradient(135deg, rgba(90,29,255,.1), transparent);  }

.pad.p-tiktok  { --c: rgba(255,45,85,.6);   --cr: 255,45,85;  }
.pad.p-tiktok::before { background: linear-gradient(135deg, rgba(255,45,85,.1), transparent); }

.pad.p-8d      { --c: rgba(48,209,88,.6);   --cr: 48,209,88;  }
.pad.p-8d::before    { background: linear-gradient(135deg, rgba(48,209,88,.1), transparent);  }

.pad.p-speedup { --c: rgba(0,199,255,.6);   --cr: 0,199,255;  }
.pad.p-speedup::before { background: linear-gradient(135deg, rgba(0,199,255,.1), transparent); }

.pad.p-garage  { --c: rgba(255,159,10,.6);  --cr: 255,159,10; }
.pad.p-garage::before { background: linear-gradient(135deg, rgba(255,159,10,.1), transparent); }

.pad.p-eq      { --c: rgba(155,77,255,.6);  --cr: 155,77,255; }
.pad.p-eq::before    { background: linear-gradient(135deg, rgba(155,77,255,.1), transparent);  }

.pad.p-bass    { --c: rgba(255,55,95,.6);   --cr: 255,55,95;  }
.pad.p-bass::before  { background: linear-gradient(135deg, rgba(255,55,95,.1), transparent);   }

.pad-icon { font-size: 26px; display: block; margin-bottom: 8px; position: relative; z-index: 1; }
.pad-name { font-size: 12px; font-weight: 700; color: var(--text); position: relative; z-index: 1; line-height: 1.3; }
.pad-desc { font-size: 10px; color: var(--text-2); margin-top: 3px; position: relative; z-index: 1; }


/* ----- 10b. Effects Toggles ---------------------------------------- */

.fx-toggles {
  display: flex; flex-direction: column; gap: 12px;
}

.fx-toggle {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px; border-radius: 14px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.14);
  cursor: pointer;
  transition: background .2s, border-color .2s;
}
.fx-toggle:hover {
  background: rgba(255,255,255,.1);
  border-color: rgba(255,255,255,.22);
}

.fx-info { display: flex; align-items: center; gap: 12px; }
.fx-icon { font-size: 22px; }
.fx-name { font-size: 14px; font-weight: 600; color: var(--text); }

.fx-switch {
  width: 44px; height: 24px; border-radius: 12px;
  background: rgba(255,255,255,.18);
  padding: 2px;
  transition: background .25s;
}
.fx-toggle.on .fx-switch {
  background: var(--accent);
}

.fx-switch-thumb {
  width: 20px; height: 20px; border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 4px rgba(0,0,0,.3);
  transition: transform .25s;
}
.fx-toggle.on .fx-switch-thumb {
  transform: translateX(20px);
}




/* ----- 11. Download Button ----------------------------------------- */

.download-wrap { margin-top: 22px; }

.download-btn {
  width: 100%;
  padding: 17px 28px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  border: none; color: #fff;
  font-size: 17px; font-weight: 750; letter-spacing: -.2px;
  display: flex; align-items: center; justify-content: center; gap: 10px;
  flex-wrap: wrap;
  cursor: pointer;
  box-shadow: 0 8px 32px rgba(155,77,255,.38);
  transition: transform .22s, box-shadow .22s;
}
.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 44px rgba(155,77,255,.52);
}
.download-btn:active { transform: translateY(0); }

.download-btn.locked, .download-btn.no-changes {
  opacity: .45;
  pointer-events: none;
  filter: saturate(.3);
}
.download-sub {
  font-size: 10px; font-weight: 500;
  opacity: .7; letter-spacing: .2px;
  width: 100%; text-align: center;
  margin-top: -2px;
}




/* ----- 12. Footer -------------------------------------------------- */

footer {
  margin-top: 28px;
  background: rgba(8,8,15,.82);
  backdrop-filter: blur(32px);
  -webkit-backdrop-filter: blur(32px);
  border-top: 1px solid var(--glass-border);
  padding: 44px 24px 32px;
}

.footer-inner { max-width: 1080px; margin: 0 auto; }

.footer-top {
  display: flex; justify-content: space-between;
  align-items: flex-start; gap: 40px;
  margin-bottom: 36px; flex-wrap: wrap;
}

.footer-brand { display: flex; align-items: center; gap: 9px; }

.footer-cols { display: flex; gap: 56px; flex-wrap: wrap; }

.f-col h4 {
  font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1px;
  color: var(--text-2); margin-bottom: 14px;
}
.f-col ul {
  list-style: none; display: flex; flex-direction: column; gap: 10px;
}
.f-col ul li a {
  text-decoration: none; font-size: 14px;
  color: rgba(255,255,255,.52);
  transition: color .15s;
}
.f-col ul li a:hover { color: var(--text); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 22px;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 14px;
}
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,.4); }

.footer-legal { display: flex; gap: 20px; }
.footer-legal a {
  font-size: 13px; color: rgba(255,255,255,.4);
  text-decoration: none; transition: color .15s;
}
.footer-legal a:hover { color: rgba(255,255,255,.75); }


/* ----- 12b. Upload Compact Bar ------------------------------------- */

.upload-compact {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 18px;
  border-radius: 12px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  cursor: pointer;
  margin-bottom: 14px;
  transition: background .2s, border-color .2s;
}
.upload-compact:hover {
  background: var(--glass-hover);
  border-color: rgba(155,77,255,.35);
}
.upload-compact svg { color: var(--accent); flex-shrink: 0; }
.upload-compact-label {
  font-size: 13.5px; font-weight: 600; color: var(--text);
}
.upload-compact-formats {
  font-size: 11px; color: var(--text-off); margin-left: auto;
}


/* ----- 12c. Semitones Warning -------------------------------------- */

.sem-warning {
  margin-top: 10px; padding: 8px 14px;
  border-radius: 10px;
  background: rgba(255,179,0,.10);
  border: 1px solid rgba(255,179,0,.25);
  color: rgba(255,190,50,.95);
  font-size: 12px; font-weight: 550;
  opacity: 0; max-height: 0; overflow: hidden;
  transition: opacity .3s, max-height .3s, margin .3s, padding .3s;
  margin-top: 0; padding: 0 14px;
}
.sem-warning.visible {
  opacity: 1; max-height: 50px;
  margin-top: 10px; padding: 8px 14px;
}

/* ----- 12c-bis. HQ Hint (default subtle, green highlight on upload) - */
span.hq-hint {
  font-weight: 400; opacity: 0.5; font-size: 0.75em;
  transition: color .3s ease, background-color .3s ease, border-color .3s ease, opacity .3s ease, padding .3s ease;
  padding: 0;
  margin-left: 6px;
  border-radius: 8px;
  border: 1px solid transparent;
  background-color: transparent;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: middle;
}
@keyframes hq-marquee {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
@media (max-width: 640px) {
  span.hq-hint.hq-marquee {
    display: inline-block;
    max-width: calc(100vw - 130px);
    overflow: hidden;
    text-overflow: clip;
  }
  span.hq-hint.hq-marquee .hq-marquee-inner {
    display: inline-block;
    white-space: nowrap;
    animation: hq-marquee 14s linear infinite;
  }
}
span.hq-hint.hq-green {
  padding: 4px 10px;
  background-color: rgba(34,197,94,.10) !important;
  border-color: rgba(34,197,94,.25) !important;
  color: rgba(34,197,94,.95) !important;
  font-weight: 550;
  opacity: 1 !important;
}
body.light span.hq-hint.hq-green {
  background-color: rgba(22,163,74,.08) !important;
  border-color: rgba(22,163,74,.22) !important;
  color: rgba(22,130,60,.90) !important;
}

/* Preview limit hint (auto-pause for free users) */
.preview-limit-hint {
  font-size: 12px;
  color: var(--text-off);
  opacity: .55;
  text-align: center;
  margin-top: 22px;
  padding: 8px 12px;
  transition: color .4s ease, background-color .4s ease, border-color .4s ease, opacity .4s ease, padding .4s ease;
  border-radius: 8px;
  border: 1px solid transparent;
  background: transparent;
}
.preview-limit-hint.hidden { display: none; }
.preview-limit-hint.hint-green {
  padding: 8px 14px;
  background-color: rgba(34,197,94,.10);
  border-color: rgba(34,197,94,.25);
  color: rgba(34,197,94,.95);
  font-weight: 550;
  opacity: 1;
}
body.light .preview-limit-hint.hint-green {
  background-color: rgba(22,163,74,.08);
  border-color: rgba(22,163,74,.22);
  color: rgba(22,130,60,.90);
}


/* ----- 12d. Theme Toggle ------------------------------------------- */

.theme-toggle {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--text-2);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: color .18s, border-color .18s, background .18s;
}
.theme-toggle:hover {
  color: var(--text);
  border-color: rgba(255,255,255,.22);
  background: var(--glass-hover);
}


/* ----- 12e. Light Mode --------------------------------------------- */

body.light {
  --glass:        rgba(0,0,0,0.05);
  --glass-border: rgba(0,0,0,0.10);
  --glass-hover:  rgba(0,0,0,0.08);
  --text:         rgba(0,0,0,0.90);
  --text-2:       rgba(0,0,0,0.58);
  --text-off:     rgba(0,0,0,0.38);
  --accent:       #7B2FE0;
  --accent-dark:  #5A1DCC;
  --accent-mid:   #6A29CC;
  --accent-rgb:   123,47,224;
  --accent-glow:  rgba(123,47,224,0.30);
  background:
    radial-gradient(ellipse 70% 50% at 15% 60%, rgba(155,77,255,.08) 0%, transparent 55%),
    radial-gradient(ellipse 60% 45% at 85% 20%, rgba(90,29,255,.06)  0%, transparent 50%),
    radial-gradient(ellipse 55% 40% at 55% 90%, rgba(122,59,204,.04) 0%, transparent 50%),
    #f3f1f8;
  color: var(--text);
}

body.light nav {
  background: rgba(243,241,248,.82);
  border-bottom-color: var(--glass-border);
}
body.light .logo-name {
  background: linear-gradient(135deg, #1a1a2e 0%, rgba(26,26,46,.65) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
body.light .page-header h1 {
  background: linear-gradient(155deg, #1a1a2e 0%, rgba(26,26,46,.55) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}

body.light .upload-zone {
  border-color: rgba(0,0,0,.18);
  background: rgba(0,0,0,.02);
}
body.light .upload-zone::after {
  background: radial-gradient(ellipse at 50% 50%, rgba(155,77,255,.04) 0%, transparent 70%);
}
body.light .upload-zone:hover,
body.light .upload-zone.drag-over {
  border-color: rgba(123,47,224,.45);
  background: rgba(123,47,224,.04);
  box-shadow: 0 0 40px rgba(123,47,224,.08);
}

body.light .card {
  background: rgba(255,255,255,.65);
  border-color: rgba(0,0,0,.08);
  backdrop-filter: blur(22px) saturate(120%);
  -webkit-backdrop-filter: blur(22px) saturate(120%);
}

body.light .pad {
  border-color: rgba(0,0,0,.10);
  background: rgba(255,255,255,.5);
}
@media (hover: hover) {
  body.light .pad:hover {
    box-shadow: 0 10px 28px rgba(0,0,0,.10);
  }
}
body.light .pad.on {
  border-color: var(--c, rgba(155,77,255,.55));
  background: rgba(var(--cr, 155,77,255),.18);
  box-shadow: 0 4px 18px rgba(var(--cr, 155,77,255),.22);
}

body.light .fx-toggle {
  background: rgba(0,0,0,.04);
  border-color: rgba(0,0,0,.10);
}
body.light .fx-toggle:hover {
  background: rgba(0,0,0,.07);
  border-color: rgba(0,0,0,.15);
}
body.light .fx-switch {
  background: rgba(0,0,0,.15);
}

body.light .step-btn {
  background: rgba(0,0,0,.06);
  border-color: rgba(0,0,0,.12);
  color: var(--text);
}
body.light .step-btn:hover {
  background: rgba(123,47,224,.12);
  border-color: rgba(123,47,224,.30);
}

body.light .reset-btn {
  background: rgba(0,0,0,.05);
  border-color: rgba(0,0,0,.10);
  color: var(--text-2);
}
body.light .reset-btn:hover {
  background: rgba(123,47,224,.10);
  border-color: rgba(123,47,224,.25);
  color: var(--accent);
}

body.light input[type="range"] {
  background: rgba(0,0,0,.12);
}
body.light input[type="range"]::-webkit-slider-thumb {
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,.18);
}
body.light input[type="range"].accent::-webkit-slider-thumb {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
}

body.light .play-btn {
  background: rgba(0,0,0,.08);
  border-color: rgba(0,0,0,.15);
  color: var(--text);
}
body.light .play-btn:hover {
  background: rgba(123,47,224,.14);
  border-color: rgba(123,47,224,.30);
}

body.light .vocal-isolator-btn {
  background: rgba(255,255,255,.65);
  border-color: rgba(123,47,224,.35);
  color: var(--text);
}

body.light .upload-compact {
  background: rgba(255,255,255,.65);
  border-color: rgba(0,0,0,.08);
}
body.light .upload-compact:hover {
  border-color: rgba(123,47,224,.30);
}

body.light .theme-toggle {
  background: rgba(0,0,0,.05);
  border-color: rgba(0,0,0,.10);
  color: var(--text-2);
}
body.light .theme-toggle:hover {
  color: var(--text);
  border-color: rgba(0,0,0,.18);
  background: rgba(0,0,0,.08);
}

body.light footer {
  background: rgba(243,241,248,.85);
  border-top-color: rgba(0,0,0,.08);
}
body.light .f-col ul li a { color: rgba(0,0,0,.45); }
body.light .f-col ul li a:hover { color: var(--text); }
body.light .footer-bottom { border-top-color: rgba(0,0,0,.08); }
body.light .footer-bottom p { color: rgba(0,0,0,.35); }
body.light .footer-legal a { color: rgba(0,0,0,.35); }
body.light .footer-legal a:hover { color: rgba(0,0,0,.65); }

body.light .download-btn {
  box-shadow: 0 8px 32px rgba(123,47,224,.25);
}
body.light .download-btn:hover {
  box-shadow: 0 14px 44px rgba(123,47,224,.35);
}

body.light .lang-btn {
  background: rgba(0,0,0,.05);
  border-color: rgba(0,0,0,.10);
  color: var(--text-2);
}
body.light .lang-btn:hover {
  color: var(--text);
  border-color: rgba(0,0,0,.18);
}
body.light .lang-menu {
  background: rgba(255,255,255,.96);
  border-color: rgba(0,0,0,.10);
  box-shadow: 0 20px 60px rgba(0,0,0,.12);
}
body.light .lang-item { color: var(--text-2); }
body.light .lang-item:hover { background: rgba(0,0,0,.05); color: var(--text); }

body.light .btn-login {
  border-color: rgba(0,0,0,.12);
  color: var(--text-2);
}
body.light .btn-login:hover {
  color: var(--text);
  border-color: rgba(0,0,0,.20);
  background: rgba(0,0,0,.05);
}

body.light .sem-warning {
  background: rgba(255,160,0,.08);
  border-color: rgba(255,160,0,.22);
  color: rgba(200,120,0,.90);
}


/* ----- 13. Utilities ----------------------------------------------- */

.hidden { display: none; }


/* ----- 13b. Hamburger & Mobile Menu -------------------------------- */

.hamburger {
  display: none; /* shown only on mobile */
  flex-direction: column; justify-content: center; align-items: center;
  gap: 5px; width: 36px; height: 36px; border-radius: 10px;
  background: var(--glass); border: 1px solid var(--glass-border);
  cursor: pointer; padding: 0;
  transition: background .18s;
}
.hamburger:hover { background: var(--glass-hover); }
.hamburger span {
  display: block; width: 18px; height: 2px; border-radius: 1px;
  background: var(--text-2); transition: transform .25s, opacity .25s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  position: fixed; top: 62px; left: 0; right: 0; bottom: 0;
  z-index: 899;
  background: rgba(8,8,15,.95);
  backdrop-filter: blur(32px);
  -webkit-backdrop-filter: blur(32px);
  overflow-y: auto;
  animation: mobileMenuIn .25s ease;
}
@keyframes mobileMenuIn {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.mobile-menu.open { display: block; }

body.light .mobile-menu {
  background: rgba(243,241,248,.97);
}

.mobile-menu-inner {
  padding: 24px 24px 40px;
  max-width: 400px; margin: 0 auto;
}

.mobile-nav-links {
  list-style: none; display: flex; flex-direction: column; gap: 4px;
}
.mobile-nav-links a {
  display: block; padding: 14px 16px; border-radius: 14px;
  text-decoration: none; font-size: 16px; font-weight: 600;
  color: var(--text-2); transition: color .18s, background .18s;
}
.mobile-nav-links a:hover,
.mobile-nav-links a.active {
  color: var(--text);
  background: rgba(155,77,255,.12);
}

.mobile-divider {
  height: 1px; background: var(--glass-border); margin: 18px 0;
}

.mobile-controls {
  display: flex; flex-direction: column; gap: 12px;
}
.mobile-control-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 16px;
}
.mobile-control-label {
  font-size: 14px; font-weight: 500; color: var(--text-2);
}

.mobile-auth {
  display: flex; flex-direction: column; gap: 10px;
}
.mobile-auth .btn-login {
  width: 100%; padding: 14px; border-radius: 14px;
  background: var(--glass); border: 1px solid var(--glass-border);
  color: var(--text-2); font-size: 15px; font-weight: 600;
  cursor: pointer; transition: background .18s;
  display: flex; align-items: center; justify-content: center;
}
.mobile-auth .btn-login:hover { background: var(--glass-hover); }
.mobile-auth .btn-signup {
  width: 100%; padding: 14px; border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border: none; color: #fff; font-size: 15px; font-weight: 650;
  cursor: pointer;
  box-shadow: 0 4px 18px rgba(155,77,255,.3);
  display: flex; align-items: center; justify-content: center;
}


/* ----- Desktop two-column layout ----------------------------------- */

@media (min-width: 1024px) {
  main {
    max-width: 1200px;
  }
  .studio-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    align-items: start;
  }
  .studio-left {
    position: sticky;
    top: 90px;
  }
}

.download-mobile { display: none; }

@media (max-width: 1023px) {
  .studio-left .download-wrap { display: none; }
  .download-mobile { display: block; }
}

/* ----- 14. Responsive ---------------------------------------------- */

@media (max-width: 860px) {
  .nav-links { display: none !important; }
  .nav-right { display: none !important; }
  .hamburger { display: flex; }
  nav { justify-content: center; }
  .logo {
    position: absolute; left: 50%; transform: translateX(-50%);
  }
  .hamburger {
    position: absolute; right: 16px;
  }
}

@media (max-width: 640px) {
  .pads-grid, .pads-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .pads-grid .pad:last-child:nth-child(odd) { grid-column: 1 / -1; max-width: 50%; justify-self: center; }
  .page-header h1 { font-size: 34px; }
}

/* ----- Contact Popup ------------------------------------------------- */
.contact-overlay {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: none; align-items: center; justify-content: center;
}
.contact-overlay.open { display: flex; }

.contact-popup {
  position: relative;
  display: flex; align-items: center; gap: 14px;
  background: var(--glass);
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 18px 24px;
  animation: popIn .25s ease;
}
@keyframes popIn {
  from { opacity: 0; transform: scale(.92); }
  to   { opacity: 1; transform: scale(1); }
}
.contact-close {
  position: absolute; top: -10px; right: -10px;
  width: 26px; height: 26px; border-radius: 50%;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.18);
  color: var(--text-2); font-size: 16px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  line-height: 1; transition: background .15s, color .15s;
}
.contact-close:hover { background: rgba(255,255,255,.22); color: var(--text); }

.contact-email {
  font-size: 15.5px; font-weight: 600; color: var(--accent);
  letter-spacing: -.2px;
}
.contact-copy-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: 8px;
  background: var(--accent); border: none;
  color: #fff; font-size: 13px; font-weight: 600;
  cursor: pointer; transition: opacity .15s, transform .1s;
}
.contact-copy-btn:hover { opacity: .88; }
.contact-copy-btn:active { transform: scale(.94); }

/* Contact popup – light mode */
body.light .contact-overlay {
  background: rgba(0,0,0,.3);
}
body.light .contact-popup {
  background: rgba(255,255,255,.94);
  border-color: rgba(0,0,0,.10);
  box-shadow: 0 16px 48px rgba(0,0,0,.16);
}
body.light .contact-close {
  background: rgba(0,0,0,.07);
  border-color: rgba(0,0,0,.10);
  color: rgba(0,0,0,.4);
}
body.light .contact-close:hover {
  background: rgba(0,0,0,.12);
  color: rgba(0,0,0,.7);
}
body.light .contact-email {
  color: #6b2fd6;
}


/* ----- 15. Auth Modal ------------------------------------------------- */

.auth-overlay {
  position: fixed; inset: 0; z-index: 10000;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: none; align-items: center; justify-content: center;
}
.auth-overlay.open { display: flex; }

.auth-modal {
  position: relative;
  width: 90%; max-width: 400px;
  background: var(--glass);
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  padding: 32px 28px 28px;
  animation: popIn .25s ease;
}

.auth-close {
  position: absolute; top: 12px; right: 14px;
  background: none; border: none;
  color: var(--text-off); font-size: 22px;
  cursor: pointer; line-height: 1;
  transition: color .15s;
}
.auth-close:hover { color: var(--text); }

.auth-tabs {
  display: flex; gap: 4px;
  margin-bottom: 20px;
  background: rgba(255,255,255,.06);
  border-radius: var(--radius-sm);
  padding: 3px;
}
.auth-tab {
  flex: 1; padding: 9px 0;
  border: none; border-radius: 8px;
  background: transparent;
  color: var(--text-off);
  font-size: 14px; font-weight: 600;
  cursor: pointer; transition: all .18s;
}
.auth-tab.active {
  background: rgba(255,255,255,.12);
  color: var(--text);
}

.auth-error {
  background: rgba(255,69,58,.12);
  border: 1px solid rgba(255,69,58,.25);
  border-radius: 8px;
  padding: 10px 14px;
  margin-bottom: 16px;
  color: var(--danger);
  font-size: 13px; font-weight: 500;
  line-height: 1.4;
}

.auth-form {
  display: flex; flex-direction: column; gap: 12px;
}

.auth-input {
  width: 100%; padding: 11px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  background: rgba(255,255,255,.06);
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: border-color .18s, background .18s;
  box-sizing: border-box;
}
.auth-input::placeholder { color: var(--text-off); }
.auth-input:focus {
  border-color: var(--accent);
  background: rgba(255,255,255,.10);
}

.auth-submit {
  padding: 11px 0;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border: none; color: #fff;
  font-size: 14px; font-weight: 650;
  cursor: pointer;
  box-shadow: 0 2px 12px rgba(var(--accent-rgb),.3);
  transition: transform .18s, box-shadow .18s, opacity .18s;
}
.auth-submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 18px rgba(var(--accent-rgb),.45);
}
.auth-submit:disabled { opacity: .6; cursor: default; transform: none; }

.auth-divider {
  display: flex; align-items: center; gap: 12px;
  margin: 18px 0;
  color: var(--text-off); font-size: 12px;
}
.auth-divider::before,
.auth-divider::after {
  content: ''; flex: 1; height: 1px;
  background: var(--glass-border);
}

.auth-google {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  width: 100%; padding: 10px 0;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  background: rgba(255,255,255,.06);
  color: var(--text);
  font-size: 13.5px; font-weight: 600;
  cursor: pointer;
  transition: background .18s, border-color .18s;
}
.auth-google:hover {
  background: rgba(255,255,255,.12);
  border-color: rgba(255,255,255,.24);
}

/* Account dropdown */
.account-wrap {
  position: relative;
}
.account-wrap .btn-login {
  display: flex; align-items: center; gap: 6px;
}
.account-wrap .btn-login svg {
  transition: transform .2s;
}
.account-wrap.open-dropdown .btn-login svg {
  transform: rotate(180deg);
}
.account-dropdown {
  position: absolute; top: calc(100% + 8px); right: 0;
  min-width: 160px;
  background: var(--glass);
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 6px 0;
  opacity: 0; pointer-events: none;
  transform: translateY(-6px);
  transition: opacity .18s, transform .18s;
  z-index: 1000;
}
.account-dropdown.open {
  opacity: 1; pointer-events: auto;
  transform: translateY(0);
}
.account-item {
  padding: 9px 16px;
  font-size: 13px; font-weight: 500;
  color: var(--text-2);
  cursor: pointer;
  transition: background .15s, color .15s;
  white-space: nowrap;
}
.account-item:hover {
  background: var(--glass-hover);
  color: var(--text);
}
.account-item.disabled {
  opacity: .45;
  cursor: default;
  pointer-events: none;
}

/* Auth modal – light mode */
body.light .auth-overlay { background: rgba(0,0,0,.3); }
body.light .auth-modal {
  background: rgba(255,255,255,.94);
  border-color: rgba(0,0,0,.10);
  box-shadow: 0 16px 48px rgba(0,0,0,.16);
}
body.light .auth-close { color: rgba(0,0,0,.35); }
body.light .auth-close:hover { color: rgba(0,0,0,.7); }
body.light .auth-tabs { background: rgba(0,0,0,.05); }
body.light .auth-tab { color: rgba(0,0,0,.45); }
body.light .auth-tab.active { background: #fff; color: var(--text); box-shadow: 0 1px 4px rgba(0,0,0,.08); }
body.light .auth-input {
  background: rgba(0,0,0,.04);
  border-color: rgba(0,0,0,.12);
  color: var(--text);
}
body.light .auth-input:focus { border-color: var(--accent); background: #fff; }
body.light .auth-input::placeholder { color: rgba(0,0,0,.35); }
body.light .auth-google {
  background: #fff;
  border-color: rgba(0,0,0,.15);
  color: var(--text);
}
body.light .auth-google:hover { background: rgba(0,0,0,.04); }
body.light .auth-divider { color: rgba(0,0,0,.35); }
body.light .auth-divider::before,
body.light .auth-divider::after { background: rgba(0,0,0,.10); }
body.light .account-dropdown {
  background: rgba(255,255,255,.94);
  border-color: rgba(0,0,0,.10);
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
}
body.light .account-item { color: var(--text-2); }
body.light .account-item:hover { background: rgba(0,0,0,.05); color: var(--text); }
body.light .auth-error {
  background: rgba(255,69,58,.08);
  border-color: rgba(255,69,58,.18);
}

/* ----- Export progress modal ---------------------------------------------- */
.export-overlay {
  position: fixed; inset: 0; z-index: 10000;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0; pointer-events: none;
  transition: opacity .25s;
}
.export-overlay.open { opacity: 1; pointer-events: auto; }

.export-modal {
  background: var(--glass);
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  padding: 32px 36px;
  width: 90%; max-width: 380px;
  text-align: center;
  animation: authPop .25s ease;
}
.export-spinner {
  width: 44px; height: 44px;
  margin: 0 auto 18px;
  border: 3px solid rgba(255,255,255,.1);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: exportSpin .8s linear infinite;
}
@keyframes exportSpin {
  to { transform: rotate(360deg); }
}
body.light .export-spinner {
  border-color: rgba(0,0,0,.08);
  border-top-color: var(--accent);
}

.export-title {
  font-size: 20px; font-weight: 700; margin-bottom: 12px;
  color: var(--text);
}
.export-status {
  font-size: 13px; color: var(--text-2);
  margin-bottom: 20px;
  min-height: 18px;
}
.export-progress-bar {
  width: 100%; height: 6px;
  background: rgba(255,255,255,.08);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 10px;
}
.export-progress-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-dark));
  border-radius: 3px;
  transition: width .2s ease;
}
.export-percent {
  font-size: 13px; font-weight: 600;
  color: var(--text-2);
  margin-bottom: 20px;
}
.export-cancel-btn {
  padding: 8px 24px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--text-2);
  font-size: 13px; font-weight: 600;
  cursor: pointer;
  transition: color .18s, border-color .18s, background .18s;
}
.export-cancel-btn:hover {
  color: var(--text);
  border-color: rgba(255,255,255,.2);
  background: var(--glass-hover);
}

/* Export success state */
.export-success-icon {
  display: none;
  width: 52px; height: 52px;
  margin: 0 auto 18px;
  color: #34d399;
}
.export-success-icon.visible {
  display: block;
  animation: exportSuccessPop .4s cubic-bezier(.22,1.2,.36,1);
}
.export-success-circle {
  stroke-dasharray: 151;
  stroke-dashoffset: 151;
  animation: exportCircleDraw .5s ease forwards;
}
.export-success-check {
  stroke-dasharray: 40;
  stroke-dashoffset: 40;
  animation: exportCheckDraw .35s ease .3s forwards;
}
@keyframes exportSuccessPop {
  0% { transform: scale(0); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}
@keyframes exportCircleDraw {
  to { stroke-dashoffset: 0; }
}
@keyframes exportCheckDraw {
  to { stroke-dashoffset: 0; }
}

.export-hint {
  margin-top: 14px;
  font-size: 11px;
  color: var(--text-2);
  opacity: .5;
  line-height: 1.4;
}

/* Export modal – light mode */
body.light .export-overlay { background: rgba(0,0,0,.3); }
body.light .export-modal {
  background: rgba(255,255,255,.94);
  border-color: rgba(0,0,0,.10);
  box-shadow: 0 16px 48px rgba(0,0,0,.16);
}
body.light .export-progress-bar { background: rgba(0,0,0,.06); }
body.light .export-cancel-btn {
  border-color: rgba(0,0,0,.12);
  color: var(--text-2);
}
body.light .export-cancel-btn:hover {
  color: var(--text);
  border-color: rgba(0,0,0,.20);
  background: rgba(0,0,0,.05);
}


/* ===== VOCAL REMOVER PAGE ============================================ */

.vr-layout {
  max-width: 680px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.vr-action-wrap {
  margin-bottom: 6px;
}

.vr-action-btn {
  width: 100%;
}

/* Results section */
.vr-results {
  background: var(--glass);
  backdrop-filter: blur(22px) saturate(180%);
  -webkit-backdrop-filter: blur(22px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  padding: 28px 24px;
}

.vr-results-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  text-align: center;
  margin-bottom: 4px;
}

.vr-results-sub {
  font-size: 13px;
  color: var(--text-2);
  text-align: center;
  margin-bottom: 24px;
  opacity: .65;
}

.vr-stems-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 640px) {
  .vr-stems-grid {
    grid-template-columns: 1fr;
  }
}

.vr-stem-card {
  background: rgba(255,255,255,.04);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.vr-stem-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.vr-stem-name {
  letter-spacing: -.2px;
}

.vr-stem-player {
  display: flex;
  align-items: center;
  gap: 10px;
}

.vr-play-btn {
  width: 36px !important;
  height: 36px !important;
  min-width: 36px;
  font-size: 13px !important;
}

.vr-stem-player .timeline {
  flex: 1;
  min-width: 0;
}

.vr-download-btn {
  width: 100%;
  padding: 10px 16px !important;
  font-size: 13px !important;
  gap: 6px;
  border-radius: 10px !important;
}

.vr-download-btn svg {
  width: 16px;
  height: 16px;
}

/* Light mode overrides */
body.light .vr-results {
  background: rgba(255,255,255,.65);
  border-color: rgba(0,0,0,.08);
}

body.light .vr-stem-card {
  background: rgba(0,0,0,.03);
  border-color: rgba(0,0,0,.08);
}

/* ----- Auth heading & success -------------------------------------------- */
.auth-heading {
  font-size: 18px; font-weight: 700;
  color: var(--text);
  margin-bottom: 20px;
  text-align: center;
}
.auth-success {
  background: rgba(52,199,89,.12);
  border: 1px solid rgba(52,199,89,.25);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 16px;
  color: #34c759;
  font-size: 13px; font-weight: 500;
  line-height: 1.4;
  text-align: center;
}
body.light .auth-success {
  background: rgba(52,199,89,.08);
  border-color: rgba(52,199,89,.18);
}

/* ----- Paywall overlay --------------------------------------------------- */
.paywall-overlay {
  position: fixed; inset: 0; z-index: 10000;
  background: #0d0d11;
  display: none; align-items: center; justify-content: center;
  padding: 20px;
  overflow-y: auto;
}
.paywall-overlay.open { display: flex; }

.paywall-modal {
  position: relative;
  width: 100%; max-width: 1400px;
  background: transparent;
  border: none;
  border-radius: var(--radius-card);
  padding: 36px 32px 32px;
  animation: popIn .25s ease;
}

.paywall-close {
  position: fixed; top: 10px; right: 14px;
  background: none; border: none;
  color: var(--text-off); font-size: 16px;
  cursor: pointer; line-height: 1;
  opacity: .1;
  z-index: 10001;
  transition: opacity .15s, color .15s;
}
.paywall-close:hover { opacity: .6; color: var(--text); }

.paywall-title {
  text-align: center;
  font-size: 26px; font-weight: 800;
  color: var(--text);
  margin-bottom: 8px;
}
.paywall-subtitle {
  text-align: center;
  font-size: 15px; color: var(--text-off);
  margin-bottom: 36px;
}

.paywall-plans {
  display: flex; gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.paywall-card {
  flex: 1; min-width: 0; max-width: 320px;
  background: rgba(255,255,255,.05);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 36px 28px;
  display: flex; flex-direction: column;
  position: relative;
  transition: border-color .2s, transform .2s;
}
.paywall-card:hover {
  border-color: rgba(255,255,255,.25);
  transform: translateY(-2px);
}
.paywall-card.popular {
  border-color: var(--accent);
  box-shadow: 0 0 24px rgba(var(--accent-rgb),.15);
}

.paywall-badge {
  position: absolute; top: -11px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  font-size: 11px; font-weight: 700;
  padding: 3px 12px;
  border-radius: 20px;
  white-space: nowrap;
  letter-spacing: .02em;
}

.paywall-card-name {
  font-size: 17px; font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  text-align: center;
}

/* ── Billing toggle (monthly / annual) ───────────────── */
.billing-toggle {
  display: flex;
  justify-content: center;
  gap: 0;
  margin-bottom: 16px;
  background: rgba(255,255,255,.06);
  border-radius: 8px;
  padding: 3px;
  border: 1px solid var(--glass-border);
}
.billing-toggle-btn {
  flex: 1;
  padding: 6px 16px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-off);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background .2s, color .2s;
}
.billing-toggle-btn.active {
  background: var(--accent);
  color: #fff;
}
.billing-toggle-btn:not(.active):hover {
  color: var(--text);
}

/* ── Save badge (inside Annual toggle button) ────────── */
.save-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  color: #34c759;
  margin-left: 4px;
  vertical-align: middle;
}
.billing-toggle-btn.active .save-badge {
  color: #a5f3c0;
}

/* ── Feature highlight ───────────────────────────────── */
.paywall-features li.feature-highlight {
  color: var(--accent);
  font-weight: 600;
}

.paywall-card-price {
  font-size: 36px; font-weight: 800;
  color: var(--text);
  text-align: center;
  margin-bottom: 4px;
  line-height: 1.2;
}
.paywall-card-price .period {
  font-size: 14px; font-weight: 500;
  color: var(--text-off);
}

.paywall-card-desc {
  font-size: 13px; color: var(--text-off);
  text-align: center;
  margin-bottom: 20px;
  min-height: 18px;
}

.paywall-features {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 10px;
  margin-bottom: 24px;
  flex: 1;
}
.paywall-features li {
  font-size: 15px; color: var(--text-2);
  padding-left: 22px;
  position: relative;
  line-height: 1.5;
}
.paywall-features li::before {
  content: '\2713';
  position: absolute; left: 0; top: 0;
  color: var(--accent);
  font-weight: 700; font-size: 13px;
}

.paywall-cta {
  display: block; width: 100%;
  padding: 14px 0;
  border-radius: var(--radius-sm);
  border: none;
  font-size: 16px; font-weight: 650;
  cursor: pointer;
  transition: transform .18s, box-shadow .18s;
  text-align: center;
  text-decoration: none;
}
.paywall-cta:hover {
  transform: translateY(-1px);
}
.paywall-cta.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  box-shadow: 0 2px 12px rgba(var(--accent-rgb),.3);
}
.paywall-cta.primary:hover {
  box-shadow: 0 4px 18px rgba(var(--accent-rgb),.45);
}
.paywall-cta.secondary {
  background: rgba(255,255,255,.08);
  color: var(--text);
  border: 1px solid var(--glass-border);
}
.paywall-cta.secondary:hover {
  background: rgba(255,255,255,.14);
}
.paywall-cta.outline {
  background: transparent;
  color: var(--text-off);
  border: 1px solid var(--glass-border);
}
.paywall-cta.outline:hover {
  color: var(--text);
  border-color: rgba(255,255,255,.25);
}
.paywall-cta.copied {
  background: rgba(52,199,89,.15);
  border-color: rgba(52,199,89,.4);
  color: #34c759;
}

.paywall-loading {
  text-align: center; padding: 40px 0;
  color: var(--text-off); font-size: 14px;
}

/* Price shimmer placeholder */
.paywall-price-loading {
  width: 100px; height: 34px;
  margin: 0 auto;
  border-radius: 8px;
  background: linear-gradient(90deg, rgba(255,255,255,.04) 25%, rgba(255,255,255,.1) 50%, rgba(255,255,255,.04) 75%);
  background-size: 200% 100%;
  animation: paywall-shimmer 1.4s ease-in-out infinite;
}
body.light .paywall-price-loading {
  background: linear-gradient(90deg, rgba(0,0,0,.04) 25%, rgba(0,0,0,.1) 50%, rgba(0,0,0,.04) 75%);
  background-size: 200% 100%;
}
@keyframes paywall-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.paywall-dots { display: none; }

/* Paywall responsive — mobile carousel */
@media (max-width: 820px) {
  .paywall-modal {
    padding: 20px 0 24px;
    max-width: 100%;
  }
  .paywall-title, .paywall-subtitle {
    padding: 0 20px;
  }
  .paywall-plans {
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
    gap: 14px;
    justify-content: flex-start;
    flex-wrap: nowrap;
    /* Side padding = (screen - card) / 2 so centered card is fully visible */
    padding: 16px calc((100vw - 260px) / 2) 8px;
  }
  /* Hide scrollbar */
  .paywall-plans::-webkit-scrollbar { display: none; }
  .paywall-plans { -ms-overflow-style: none; scrollbar-width: none; }

  .paywall-card {
    min-width: 260px;
    max-width: 260px;
    flex-shrink: 0;
    scroll-snap-align: center;
  }
  /* close button is position:fixed, no mobile override needed */
  /* Dot indicators */
  .paywall-dots {
    display: flex; justify-content: center; gap: 8px;
    padding-top: 12px;
  }
  .paywall-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: rgba(255,255,255,.2);
    border: none; padding: 0;
    cursor: pointer;
    transition: background .2s, transform .2s;
  }
  .paywall-dot.active {
    background: var(--accent);
    transform: scale(1.2);
  }
  body.light .paywall-dot { background: rgba(0,0,0,.15); }
  body.light .paywall-dot.active { background: var(--accent); }
}

/* Paywall light mode */
body.light .paywall-overlay { background: #f5f5f7; }
body.light .paywall-modal {
  background: transparent;
  border: none;
  box-shadow: none;
}
body.light .paywall-close { color: rgba(0,0,0,.2); }
body.light .paywall-close:hover { color: rgba(0,0,0,.5); }
body.light .paywall-card {
  background: rgba(0,0,0,.02);
  border-color: rgba(0,0,0,.08);
}
body.light .paywall-card:hover {
  border-color: rgba(0,0,0,.18);
}
body.light .paywall-card.popular {
  border-color: var(--accent);
}
body.light .paywall-cta.secondary {
  background: rgba(0,0,0,.04);
  border-color: rgba(0,0,0,.12);
  color: var(--text);
}
body.light .paywall-cta.secondary:hover {
  background: rgba(0,0,0,.08);
}
body.light .paywall-cta.outline {
  border-color: rgba(0,0,0,.12);
  color: var(--text-off);
}
body.light .paywall-cta.outline:hover {
  border-color: rgba(0,0,0,.2);
  color: var(--text);
}

/* ── Manage Plan ─────────────────────────────────────── */
.manage-plan-overlay .paywall-plans {
  justify-content: center;
}

/* Current plan card styling */
.paywall-card.current {
  border-color: var(--accent);
  box-shadow: 0 0 24px rgba(var(--accent-rgb),.12);
}
.paywall-badge.current-badge {
  background: linear-gradient(135deg, #10b981, #059669);
}
.paywall-cta.current-cta {
  display: block; width: 100%;
  padding: 14px 0;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(16,185,129,.3);
  font-size: 16px; font-weight: 650;
  text-align: center;
  color: #10b981;
  background: rgba(16,185,129,.08);
  cursor: default;
}

/* Unsubscribe link */
.manage-plan-unsub {
  text-align: right;
  padding: 24px 8px 0;
}
.manage-plan-unsub span {
  font-size: 12px;
  color: var(--text-off);
  opacity: .35;
  cursor: pointer;
  transition: opacity .2s;
}
.manage-plan-unsub span:hover {
  opacity: .7;
  text-decoration: underline;
}

/* ── Unsubscribe / Coupon popup ──────────────────────── */
.unsub-popup-overlay {
  position: fixed; inset: 0; z-index: 10002;
  background: rgba(0,0,0,.65);
  display: none; align-items: center; justify-content: center;
  padding: 20px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.unsub-popup-overlay.open { display: flex; }

.unsub-popup {
  background: var(--glass);
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 36px 32px;
  max-width: 420px;
  width: 100%;
  animation: popIn .25s ease;
  text-align: center;
}
.unsub-popup-title {
  font-size: 20px; font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}
.unsub-popup-text {
  font-size: 14px;
  color: var(--text-off);
  line-height: 1.6;
  margin-bottom: 24px;
}
.unsub-popup-actions {
  display: flex; gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.unsub-popup-btn {
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  border: none;
  font-size: 14px; font-weight: 600;
  cursor: pointer;
  transition: transform .15s, box-shadow .15s, background .15s;
  min-width: 140px;
}
.unsub-popup-btn:hover {
  transform: translateY(-1px);
}
.unsub-popup-btn.stay {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  box-shadow: 0 2px 12px rgba(var(--accent-rgb),.3);
}
.unsub-popup-btn.stay:hover {
  box-shadow: 0 4px 18px rgba(var(--accent-rgb),.45);
}
.unsub-popup-btn.leave {
  background: rgba(255,255,255,.06);
  color: var(--text-off);
  border: 1px solid var(--glass-border);
}
.unsub-popup-btn.leave:hover {
  background: rgba(255,255,255,.12);
  color: var(--text);
}

/* Coupon code display */
.coupon-code-wrap {
  display: flex; align-items: center;
  justify-content: center; gap: 12px;
  margin-bottom: 24px;
  background: rgba(255,255,255,.04);
  border: 1px dashed var(--glass-border);
  border-radius: 12px;
  padding: 16px 24px;
}
.coupon-code {
  font-size: 28px; font-weight: 800;
  color: var(--accent);
  letter-spacing: .08em;
  font-family: 'Inter', monospace;
}
.coupon-copy-btn {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  background: rgba(255,255,255,.06);
  color: var(--text-2);
  font-size: 13px; font-weight: 600;
  cursor: pointer;
  transition: all .15s;
}
.coupon-copy-btn:hover {
  background: rgba(255,255,255,.12);
  color: var(--text);
}
.coupon-copy-btn.copied {
  background: rgba(16,185,129,.15);
  border-color: rgba(16,185,129,.3);
  color: #10b981;
}

/* Light mode for unsub popups */
body.light .unsub-popup {
  background: rgba(255,255,255,.95);
  border-color: rgba(0,0,0,.08);
  box-shadow: 0 8px 40px rgba(0,0,0,.12);
}
body.light .unsub-popup-btn.leave {
  background: rgba(0,0,0,.04);
  border-color: rgba(0,0,0,.1);
}
body.light .unsub-popup-btn.leave:hover {
  background: rgba(0,0,0,.08);
}
body.light .coupon-code-wrap {
  background: rgba(0,0,0,.02);
  border-color: rgba(0,0,0,.12);
}
body.light .coupon-copy-btn {
  background: rgba(0,0,0,.04);
  border-color: rgba(0,0,0,.1);
}
body.light .coupon-copy-btn:hover {
  background: rgba(0,0,0,.08);
}
body.light .manage-plan-unsub span { color: rgba(0,0,0,.3); }

/* Manage plan responsive */
@media (max-width: 820px) {
  .manage-plan-overlay .paywall-plans {
    padding: 16px calc((100vw - 260px) / 2) 8px;
  }
  .manage-plan-unsub {
    text-align: center;
    padding: 16px 20px 0;
  }
}