/* =========================================================
   THEME VARIABLES — Dark (default) + Light override
   ========================================================= */
:root{
  --bg:#0e1116;
  --card:#171b23;
  --card-2:#1f2530;
  --text:#f2f4f8;
  --muted:#8b93a3;
  --accent:#ffb300;
  --accent-2:#7c5cff;
  --success:#2fd672;
  --danger:#ff5c5c;
  --radius:16px;
  --overlay:rgba(0,0,0,.55);
}
:root[data-theme="light"]{
  --bg:#f4f5f8;
  --card:#ffffff;
  --card-2:#eef0f4;
  --text:#14171f;
  --muted:#6b7280;
  --accent:#e69500;
  --accent-2:#6a4bea;
  --success:#1fae5f;
  --danger:#e0453f;
  --overlay:rgba(20,23,31,.45);
}

*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  -webkit-tap-highlight-color:transparent;
  padding-bottom:84px;
  overflow-x:hidden;
  transition:background-color .25s ease, color .25s ease;
}
svg{width:100%;height:100%;display:block;}
img{max-width:100%;}

/* =========================================================
   KEYFRAMES
   ========================================================= */
@keyframes fadeIn{from{opacity:0;}to{opacity:1;}}
@keyframes fadeInUp{from{opacity:0;transform:translateY(14px);}to{opacity:1;transform:translateY(0);}}
@keyframes popIn{0%{transform:scale(.6);opacity:0;}60%{transform:scale(1.1);opacity:1;}100%{transform:scale(1);}}
@keyframes glowPulse{0%,100%{box-shadow:0 0 0 0 rgba(255,179,0,.35);}50%{box-shadow:0 0 0 6px rgba(255,179,0,0);}}
@keyframes shimmerSlide{0%{left:-60%;}50%{left:120%;}100%{left:120%;}}
@keyframes spin{to{transform:rotate(360deg);}}
@keyframes skeletonPulse{0%,100%{opacity:.45;}50%{opacity:.9;}}
@keyframes sheetUp{from{transform:translateY(100%);}to{transform:translateY(0);}}
@keyframes overlayIn{from{opacity:0;}to{opacity:1;}}

button{cursor:pointer;font-family:inherit;border:none;background:none;color:inherit;
  transition:transform .15s cubic-bezier(.34,1.56,.64,1), background .2s ease, opacity .2s ease, border-color .2s ease;}
button:active{transform:scale(0.94);}

#app{max-width:520px;margin:0 auto;}

/* =========================================================
   TOP BAR
   ========================================================= */
.topbar{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 16px;position:sticky;top:0;background:var(--bg);z-index:10;
  animation:fadeIn .4s ease;
}
.profile{display:flex;align-items:center;gap:10px;min-width:0;}
.avatar{width:44px;height:44px;border-radius:50%;object-fit:cover;border:2px solid var(--card-2);
  transition:transform .2s ease;flex-shrink:0;}
.avatar:active{transform:scale(0.92);}
.profile-info{min-width:0;}
.profile-name{font-weight:600;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:150px;}
.skeleton-text{
  display:inline-block;width:90px;height:13px;border-radius:6px;
  background:var(--card-2);color:transparent!important;
  animation:skeletonPulse 1.2s ease-in-out infinite;
}
.level-row{display:flex;align-items:center;gap:6px;margin-top:3px;}
.level-badge{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--accent-2),#5a3ee0);
  color:#fff;font-size:11px;font-weight:700;padding:2px 9px;border-radius:20px;
  animation:popIn .4s cubic-bezier(.34,1.56,.64,1);
}
.level-badge::after{
  content:'';position:absolute;top:0;left:-60%;width:40%;height:100%;
  background:linear-gradient(120deg,transparent,rgba(255,255,255,.5),transparent);
  animation:shimmerSlide 3s ease-in-out infinite;
}
.task-limit-text{font-size:11px;color:var(--muted);font-weight:600;}

.balance-pill{
  display:flex;align-items:center;gap:6px;
  background:var(--card);
  border:1px solid rgba(255,179,0,.35);
  padding:9px 15px;border-radius:999px;
  font-weight:800;font-size:14px;color:var(--text);
  animation:glowPulse 2.6s ease-in-out infinite, popIn .4s cubic-bezier(.34,1.56,.64,1);
  transition:transform .25s cubic-bezier(.34,1.56,.64,1);
  flex-shrink:0;
}
.balance-pill.balance-bump{transform:scale(1.14);}
.star-icon{width:16px;height:16px;flex-shrink:0;}

/* =========================================================
   PAGES
   ========================================================= */
.pages{padding:4px 16px 16px;}
.page{display:none;}
.page.active{display:block;animation:fadeInUp .3s ease;}
.section-title{font-size:16px;font-weight:800;margin:10px 0 12px;}

/* =========================================================
   SKELETON LOADERS
   ========================================================= */
.skeleton-card{
  height:70px;border-radius:var(--radius);background:var(--card);
  position:relative;overflow:hidden;margin-bottom:10px;
  animation:skeletonPulse 1.3s ease-in-out infinite;
}

/* =========================================================
   TASK CARDS
   ========================================================= */
.task-list{display:flex;flex-direction:column;gap:10px;}
.task-card{
  display:flex;align-items:center;gap:12px;
  background:var(--card);border-radius:var(--radius);padding:12px;
  animation:fadeInUp .4s ease backwards;
}
.task-logo{width:46px;height:46px;border-radius:12px;object-fit:cover;background:var(--card-2);flex-shrink:0;}
.task-info{flex:1;min-width:0;}
.task-title{font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.task-reward{font-size:12px;color:var(--accent);margin-top:3px;font-weight:700;display:flex;align-items:center;gap:3px;}
.task-reward .star-icon{width:12px;height:12px;}

.task-claim-btn{
  --pct:0%;
  background:var(--accent);color:#1a1200;
  padding:9px 16px;border-radius:12px;font-weight:800;font-size:13px;
  min-width:76px;text-align:center;flex-shrink:0;
}
.task-claim-btn.timing{
  background:linear-gradient(to right, var(--accent-2) var(--pct), var(--card-2) var(--pct));
  color:var(--text);transition:background .95s linear;
}
.task-claim-btn.done{background:var(--success);color:#06210f;animation:popIn .35s ease;}
.empty-state{text-align:center;color:var(--muted);padding:40px 0;font-size:14px;}

/* =========================================================
   CREATE ADS
   ========================================================= */
.promote-title{font-size:18px;font-weight:800;text-align:center;margin:14px 0 18px;}
.ad-type-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;}
.ad-type-card{
  background:var(--card);border:1px solid transparent;border-radius:var(--radius);
  padding:16px 6px;color:var(--text);display:flex;flex-direction:column;align-items:center;gap:8px;
  font-size:11px;font-weight:600;text-align:center;
}
.ad-type-card.selected{border-color:var(--accent);background:var(--card-2);}
.ad-icon{width:24px;height:24px;color:var(--accent);}

.ad-form{margin-top:18px;display:flex;flex-direction:column;gap:8px;animation:fadeInUp .3s ease;}
.ad-form.hidden{display:none;}
.ad-form label{font-size:12px;color:var(--muted);margin-top:6px;font-weight:600;}
.ad-form input,.ad-form select,.ad-form textarea{
  background:var(--card);border:1px solid var(--card-2);color:var(--text);
  padding:11px 12px;border-radius:12px;font-size:14px;outline:none;font-family:inherit;
}
.ad-form input:focus,.ad-form select:focus,.ad-form textarea:focus{border-color:var(--accent);}
.ad-form input[type="file"]{padding:9px;font-size:12px;color:var(--muted);}

.btn-primary{
  background:var(--accent);color:#1a1200;
  padding:13px;border-radius:12px;font-weight:800;font-size:14px;margin-top:10px;
  display:flex;align-items:center;justify-content:center;gap:8px;
}
.btn-primary:disabled{opacity:.4;}
.btn-primary .icon-star{width:16px;height:16px;}
.btn-secondary{
  background:var(--card-2);color:var(--text);
  padding:11px;border-radius:12px;font-weight:700;font-size:13px;margin-top:4px;
}
.btn-small{
  background:var(--accent);color:#1a1200;
  padding:6px 10px;border-radius:10px;font-size:12px;font-weight:700;margin-left:8px;
}
.admin-alert{
  background:rgba(255,92,92,.12);border:1px solid rgba(255,92,92,.4);
  color:var(--danger);font-size:12px;padding:10px;border-radius:12px;
  display:flex;align-items:center;flex-wrap:wrap;gap:4px;
}
.admin-alert.hidden{display:none;}
.hint-text{font-size:12px;color:var(--muted);line-height:1.5;}

/* =========================================================
   INVITE + REFERRAL LIST
   ========================================================= */
.invite-card{background:var(--card);border-radius:var(--radius);padding:18px;margin-top:6px;}
.invite-card p{font-size:13px;color:var(--text);margin-bottom:8px;line-height:1.6;}
.referral-link-box{
  background:var(--card-2);padding:12px;border-radius:12px;font-size:12px;
  word-break:break-all;color:var(--accent);margin:12px 0;font-weight:600;
}
.ref-stats{margin-top:12px;font-size:13px;color:var(--muted);}

.referral-list{display:flex;flex-direction:column;gap:8px;}
.referral-item{
  display:flex;align-items:center;gap:10px;background:var(--card);
  border-radius:14px;padding:10px 12px;animation:fadeInUp .35s ease backwards;
}
.avatar-sm{width:38px;height:38px;border-radius:50%;object-fit:cover;background:var(--card-2);flex-shrink:0;}
.referral-info{flex:1;min-width:0;}
.referral-name{font-size:13px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.referral-status{font-size:11px;display:flex;align-items:center;gap:4px;margin-top:2px;font-weight:600;}
.referral-status .icon-checkcircle{width:13px;height:13px;}
.referral-status.verified{color:var(--success);}
.referral-status.pending{color:var(--muted);}

/* =========================================================
   ICON BUTTON (generic small round button)
   ========================================================= */
.icon-btn{
  width:34px;height:34px;border-radius:50%;background:var(--card-2);
  display:flex;align-items:center;justify-content:center;color:var(--text);flex-shrink:0;
}
.icon-btn svg{width:17px;height:17px;}
.icon-btn:active{transform:scale(0.88);}

/* =========================================================
   BOTTOM NAV
   ========================================================= */
.bottom-nav{
  position:fixed;bottom:12px;left:50%;transform:translateX(-50%);
  width:calc(100% - 32px);max-width:488px;
  background:var(--card);border-radius:999px;
  display:flex;justify-content:space-around;align-items:center;
  padding:8px;box-shadow:0 8px 24px rgba(0,0,0,.35);
  z-index:20;
}
.nav-btn{
  color:var(--muted);
  display:flex;flex-direction:column;align-items:center;gap:3px;
  font-size:10px;font-weight:700;padding:8px 10px;border-radius:999px;flex:1;
}
.nav-btn.active{color:#1a1200;background:var(--accent);}
.nav-icon{width:19px;height:19px;}

/* =========================================================
   SETTINGS PAGE
   ========================================================= */
.settings-list{display:flex;flex-direction:column;gap:8px;}
.settings-row{
  width:100%;display:flex;align-items:center;gap:12px;
  background:var(--card);border-radius:14px;padding:14px;text-align:left;
}
.settings-icon{width:20px;height:20px;color:var(--accent);flex-shrink:0;}
.settings-label{flex:1;font-size:14px;font-weight:600;}
.settings-value{font-size:12px;color:var(--muted);font-weight:600;margin-right:2px;}
.icon-chevron{width:16px;height:16px;color:var(--muted);flex-shrink:0;}

.toggle-switch{position:relative;width:44px;height:26px;flex-shrink:0;}
.toggle-switch input{opacity:0;width:0;height:0;}
.toggle-slider{
  position:absolute;inset:0;background:var(--card-2);border-radius:999px;
  transition:background .2s ease;cursor:pointer;
}
.toggle-slider::before{
  content:'';position:absolute;width:20px;height:20px;left:3px;top:3px;
  background:#fff;border-radius:50%;transition:transform .2s cubic-bezier(.34,1.56,.64,1);
  box-shadow:0 1px 3px rgba(0,0,0,.3);
}
.toggle-switch input:checked + .toggle-slider{background:var(--accent);}
.toggle-switch input:checked + .toggle-slider::before{transform:translateX(18px);}

/* =========================================================
   BOTTOM SHEETS / OVERLAYS (Wallet, Language, Theme)
   ========================================================= */
.sheet-overlay{
  position:fixed;inset:0;background:var(--overlay);z-index:50;
  display:flex;align-items:flex-end;animation:overlayIn .2s ease;
}
.sheet-overlay.hidden{display:none;}
.bottom-sheet{
  background:var(--card);width:100%;max-width:520px;margin:0 auto;
  border-radius:22px 22px 0 0;padding:10px 20px 26px;
  animation:sheetUp .28s cubic-bezier(.32,.72,0,1);
  max-height:85vh;overflow-y:auto;
}
.small-sheet{padding-bottom:20px;}
.sheet-handle{width:36px;height:4px;background:var(--card-2);border-radius:99px;margin:6px auto 14px;}
.sheet-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;}
.sheet-header h3{font-size:16px;font-weight:800;}

.wallet-balance-display{
  display:flex;align-items:center;justify-content:center;gap:8px;
  font-size:30px;font-weight:800;margin-bottom:18px;
}
.wallet-balance-display .star-icon{width:22px;height:22px;}

.segmented-control{display:flex;background:var(--card-2);border-radius:12px;padding:4px;margin-bottom:18px;}
.segment{flex:1;padding:10px;border-radius:9px;font-size:13px;font-weight:700;color:var(--muted);}
.segment.active{background:var(--accent);color:#1a1200;}

.wallet-tab{display:flex;flex-direction:column;gap:8px;}
.wallet-tab.hidden{display:none;}
.wallet-tab label{font-size:12px;color:var(--muted);font-weight:600;}
.wallet-tab input{
  background:var(--card-2);border:1px solid var(--card-2);color:var(--text);
  padding:12px;border-radius:12px;font-size:15px;outline:none;font-family:inherit;
}
.wallet-tab input:focus{border-color:var(--accent);}

.option-list{display:flex;flex-direction:column;gap:6px;}
.option-row{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px;border-radius:12px;background:var(--card-2);font-size:14px;font-weight:600;
}
.icon-check{width:17px;height:17px;color:var(--accent);}

/* =========================================================
   RESPONSIVE TWEAKS
   ========================================================= */
@media (max-width:360px){
  .profile-name{max-width:110px;}
  .ad-type-card{font-size:10px;}
}