/* ============================================================
   Economy UI — Phase 23–26
   Covers: Quota modal, Coin burst, Savings panel,
           Ad overlay, Donation modal, Header widget
   ============================================================ */

/* ── Quota Modal ──────────────────────────────────────────── */
#ilpdf-quota-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
}
.quota-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(4px);
}
.quota-modal-card {
  position: relative;
  background: #fff;
  border-radius: 20px;
  padding: 2rem 2.5rem;
  max-width: 440px;
  width: calc(100% - 2rem);
  box-shadow: 0 24px 80px rgba(0,0,0,.25);
  text-align: center;
  animation: quota-card-in .25s cubic-bezier(.34,1.56,.64,1) both;
}
@keyframes quota-card-in {
  from { opacity:0; transform:scale(.88) translateY(20px); }
  to   { opacity:1; transform:none; }
}
.quota-modal-icon {
  font-size: 3rem;
  margin-bottom: .75rem;
  line-height: 1;
}
.quota-modal-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: #1e1e2e;
  margin: 0 0 .5rem;
}
.quota-modal-body {
  color: #555;
  font-size: .95rem;
  line-height: 1.6;
  margin: 0 0 1.5rem;
}
.quota-modal-actions {
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.quota-btn-reward {
  background: linear-gradient(135deg,#6c63ff,#4f46e5);
  color: #fff;
  border: none;
  border-radius: 12px;
  padding: .9rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform .15s,box-shadow .15s;
}
.quota-btn-reward:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(79,70,229,.4);
}
.quota-btn-dismiss {
  background: none;
  border: none;
  color: #888;
  font-size: .9rem;
  cursor: pointer;
  padding: .4rem;
}
.quota-btn-dismiss:hover { color: #333; }
.quota-modal-reset {
  font-size: .8rem;
  color: #aaa;
  margin: 1rem 0 0;
}
.quota-modal-reset a { color: #4f46e5; text-decoration: none; }

/* ── Coin Burst ───────────────────────────────────────────── */
.ilpdf-coin-burst {
  position: absolute;
  pointer-events: none;
  z-index: 9999;
}
.ilpdf-coin {
  position: absolute;
  left: 0;
  top: 0;
  font-size: var(--size, 18px);
  animation: coin-fly .9s cubic-bezier(.2,.6,.4,1) var(--delay, 0s) both;
  transform-origin: center center;
}
@keyframes coin-fly {
  0%   { opacity:1; transform:translate(0,0) scale(1) rotate(0deg); }
  100% { opacity:0; transform:
    translateX(calc(cos(var(--angle)) * var(--dist)))
    translateY(calc(sin(var(--angle)) * var(--dist) - 40px))
    scale(.5) rotate(360deg); }
}
.ilpdf-savings-popup {
  position: absolute;
  left: 50%;
  top: -48px;
  transform: translateX(-50%);
  background: #4f46e5;
  color: #fff;
  font-size: .85rem;
  font-weight: 600;
  padding: .4rem .9rem;
  border-radius: 20px;
  white-space: nowrap;
  animation: popup-in .3s ease both, popup-out .4s ease 1.5s both;
  box-shadow: 0 4px 16px rgba(79,70,229,.4);
}
@keyframes popup-in { from{opacity:0;transform:translateX(-50%) translateY(6px)} to{opacity:1;transform:translateX(-50%) translateY(0)} }
@keyframes popup-out { to{opacity:0;transform:translateX(-50%) translateY(-6px)} }

/* ── Download Success Panel ──────────────────────────────── */
.ilpdf-success-panel {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 9998;
  background: #fff;
  border-radius: 16px;
  padding: 1.25rem 1.5rem;
  max-width: 340px;
  box-shadow: 0 16px 56px rgba(0,0,0,.18);
  border-left: 4px solid #4f46e5;
  animation: panel-slide-in .35s cubic-bezier(.34,1.56,.64,1) both;
}
@keyframes panel-slide-in {
  from { opacity:0; transform:translateX(120%) }
  to   { opacity:1; transform:none }
}
.ilpdf-success-close {
  position: absolute;
  top: .6rem;
  right: .6rem;
  background: none;
  border: none;
  font-size: 1rem;
  color: #999;
  cursor: pointer;
  line-height: 1;
  padding: .2rem .4rem;
}
.ilpdf-success-close:hover { color: #333; }
.ilpdf-success-coins {
  display: flex;
  gap: .25rem;
  margin-bottom: .5rem;
  font-size: 1.5rem;
}
.ilpdf-coin-pile { animation: pile-bounce .6s ease infinite alternate; }
.ilpdf-coin-pile--2 { animation-delay: .1s; }
.ilpdf-coin-pile--3 { animation-delay: .2s; }
@keyframes pile-bounce { from{transform:translateY(0)} to{transform:translateY(-4px)} }
.ilpdf-success-saved {
  font-size: 1rem;
  font-weight: 600;
  color: #1e1e2e;
  margin: 0 0 .25rem;
}
.ilpdf-saved-amount { color: #4f46e5; }
.ilpdf-success-today { font-size: .8rem; color: #666; margin: 0 0 .4rem; }
.ilpdf-success-quote { font-size: .8rem; color: #888; margin: 0 0 .75rem; }
.ilpdf-success-actions { display: flex; gap: .5rem; flex-wrap: wrap; }
.ilpdf-btn-support {
  background: #4f46e5;
  color: #fff;
  text-decoration: none;
  border-radius: 8px;
  padding: .45rem .9rem;
  font-size: .82rem;
  font-weight: 600;
  transition: background .15s;
}
.ilpdf-btn-support:hover { background: #3730a3; }
.ilpdf-btn-share {
  background: none;
  border: 1.5px solid #e5e5e5;
  border-radius: 8px;
  padding: .45rem .9rem;
  font-size: .82rem;
  cursor: pointer;
  color: #555;
  transition: border-color .15s;
}
.ilpdf-btn-share:hover { border-color: #4f46e5; color: #4f46e5; }

/* ── Header Savings Widget ───────────────────────────────── */
.ilpdf-savings-widget {
  font-size: .82rem;
  font-weight: 600;
  color: #4f46e5;
  background: rgba(79,70,229,.08);
  border-radius: 20px;
  padding: .3rem .75rem;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: .25rem;
  cursor: default;
  user-select: none;
  transition: background .2s;
}
.ilpdf-savings-widget:hover { background: rgba(79,70,229,.14); }
.ilpdf-savings-widget-val { color: #1e1e2e; }

/* ── Ad Overlay ──────────────────────────────────────────── */
#ilpdf-ad-overlay {
  position: fixed;
  inset: 0;
  z-index: 10001;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ad-overlay-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.7);
  backdrop-filter: blur(6px);
}
.ad-overlay-card {
  position: relative;
  background: #fff;
  border-radius: 20px;
  max-width: 420px;
  width: calc(100% - 2rem);
  box-shadow: 0 32px 96px rgba(0,0,0,.3);
  overflow: hidden;
  animation: quota-card-in .25s ease both;
}
.ad-overlay-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .75rem 1.25rem;
  background: #f8f8ff;
  border-bottom: 1px solid #e5e5f5;
}
.ad-overlay-label { font-size: .75rem; color: #aaa; font-weight: 500; }
.ad-overlay-countdown {
  font-size: .8rem;
  font-weight: 700;
  color: #4f46e5;
  background: #eef;
  padding: .15rem .5rem;
  border-radius: 8px;
}
.ad-overlay-content {
  padding: 2rem 2rem 1rem;
  text-align: center;
}
.ad-overlay-icon { font-size: 2.5rem; margin-bottom: .75rem; }
.ad-overlay-content h3 { font-size: 1.15rem; font-weight: 700; color: #1e1e2e; margin: 0 0 .5rem; }
.ad-overlay-content p { color: #666; font-size: .9rem; line-height: 1.6; margin: 0 0 1.25rem; }
.ad-overlay-progress {
  height: 6px;
  background: #e5e5e5;
  border-radius: 3px;
  overflow: hidden;
}
.ad-overlay-bar {
  height: 100%;
  background: linear-gradient(90deg,#6c63ff,#4f46e5);
  border-radius: 3px;
  transition: width .1s linear;
  width: 0%;
}
.ad-overlay-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-top: 1px solid #e5e5f5;
  gap: .5rem;
}
.ad-overlay-support {
  font-size: .78rem;
  color: #4f46e5;
  text-decoration: none;
  flex: 1;
}
.ad-overlay-close {
  background: #4f46e5;
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: .6rem 1.25rem;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s,opacity .15s;
}
.ad-overlay-close--disabled { opacity: .5; cursor: not-allowed; background: #aaa; }
.ad-overlay-close--ready { background: #16a34a; cursor: pointer; opacity: 1; }

/* ── Donation Modal ──────────────────────────────────────── */
.ilpdf-donation-modal {
  position: fixed;
  inset: 0;
  z-index: 10002;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 1rem;
}
@media (min-width: 640px) {
  .ilpdf-donation-modal { align-items: center; }
}
.donation-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.45);
  backdrop-filter: blur(3px);
}
.donation-card {
  position: relative;
  background: #fff;
  border-radius: 20px 20px 12px 12px;
  padding: 1.75rem 2rem;
  max-width: 460px;
  width: 100%;
  box-shadow: 0 24px 80px rgba(0,0,0,.22);
  animation: panel-slide-in .3s ease both;
  text-align: center;
}
@media (min-width: 640px) {
  .donation-card { border-radius: 20px; }
}
.donation-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  font-size: 1.1rem;
  color: #bbb;
  cursor: pointer;
}
.donation-close:hover { color: #333; }
.donation-heart { font-size: 2.5rem; margin-bottom: .5rem; }
.donation-headline {
  font-size: 1.3rem;
  font-weight: 700;
  color: #1e1e2e;
  margin: 0 0 .6rem;
}
.donation-body {
  font-size: .88rem;
  color: #666;
  line-height: 1.6;
  margin: 0 0 1.25rem;
}
.donation-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .6rem;
  margin-bottom: 1.25rem;
}
.donation-link {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .7rem 1rem;
  border-radius: 10px;
  border: 1.5px solid #e5e5e5;
  text-decoration: none;
  color: #1e1e2e;
  font-weight: 600;
  font-size: .85rem;
  transition: border-color .15s, background .15s;
}
.donation-link:hover {
  border-color: var(--donation-color, #4f46e5);
  background: rgba(0,0,0,.02);
}
.donation-link-icon { font-size: 1.2rem; }
.donation-footer {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.donation-dismiss, .donation-skip {
  background: none;
  border: none;
  color: #aaa;
  font-size: .82rem;
  cursor: pointer;
  padding: .3rem;
}
.donation-dismiss:hover { color: #4f46e5; }
.donation-skip:hover { color: #555; }

/* ── Responsive tweaks ───────────────────────────────────── */
@media (max-width: 480px) {
  .quota-modal-card, .donation-card { padding: 1.5rem 1.25rem; }
  .ilpdf-success-panel { right: .75rem; left: .75rem; max-width: none; }
  .donation-links { grid-template-columns: 1fr; }
}

/* ── Dark mode ───────────────────────────────────────────── */
@media (prefers-color-scheme: dark) {
  .quota-modal-card, .donation-card, .ilpdf-success-panel,
  .ad-overlay-card { background: #1e1e2e; color: #e5e5f5; }
  .quota-modal-title, .donation-headline, .ilpdf-success-panel { color: #e5e5f5; }
  .quota-modal-body, .donation-body, .ilpdf-success-today,
  .ilpdf-success-quote { color: #a0a0b8; }
  .donation-link { border-color: #333; color: #e5e5f5; }
  .ad-overlay-header { background: #16162a; border-color: #2a2a3e; }
  .ad-overlay-footer { border-color: #2a2a3e; }
  .ad-overlay-content h3 { color: #e5e5f5; }
  .ad-overlay-content p { color: #a0a0b8; }
  .ad-overlay-progress { background: #333; }
}