/* ============================================================
   User Playlist - Add to Playlist Button (Modern Glass Style)
   ============================================================ */
.home-post-card,
.singer-song-card,
.category-post-card{position:relative}

.add-to-playlist-btn{position:absolute;top:10px;left:10px;width:30px;height:30px;border-radius:50%;background:rgba(15,15,22,.45);backdrop-filter:blur(12px) saturate(180%);-webkit-backdrop-filter:blur(12px) saturate(180%);border:1px solid rgba(255,255,255,.15);cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;z-index:10;transition:all .35s cubic-bezier(.34,1.56,.64,1);box-shadow:0 4px 12px rgba(0,0,0,.2),inset 0 1px 0 rgba(255,255,255,.1);opacity:.7;transform:scale(.95);-webkit-tap-highlight-color:transparent;outline:none}

.home-post-card:hover .add-to-playlist-btn,
.singer-song-card:hover .add-to-playlist-btn,
.category-post-card:hover .add-to-playlist-btn{opacity:1;transform:scale(1);background:rgba(15,15,22,.65);border-color:rgba(255,255,255,.25)}

.add-to-playlist-btn:hover{transform:scale(1.12);background:rgba(15,15,22,.8);border-color:rgba(255,255,255,.35);box-shadow:0 6px 18px rgba(0,0,0,.35),inset 0 1px 0 rgba(255,255,255,.15)}
.add-to-playlist-btn:active{transform:scale(.9)}

.add-to-playlist-btn svg{width:15px;height:15px;fill:none;stroke:rgba(255,255,255,.9);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;transition:all .3s cubic-bezier(.34,1.56,.64,1);filter:drop-shadow(0 1px 3px rgba(0,0,0,.4))}

.add-to-playlist-btn.added{background:var(--main--hue);border-color:rgba(255,255,255,.4);opacity:1;transform:scale(1);box-shadow:0 6px 18px rgba(0,0,0,.4),0 0 0 3px rgba(255,255,255,.15),inset 0 1px 0 rgba(255,255,255,.25);animation:heartPop .5s cubic-bezier(.34,1.56,.64,1)}
.add-to-playlist-btn.added svg{fill:#fff;stroke:#fff;stroke-width:0;filter:drop-shadow(0 1px 3px rgba(0,0,0,.2))}
.add-to-playlist-btn.added:hover{background:var(--hover--hue);transform:scale(1.12);box-shadow:0 8px 24px rgba(0,0,0,.5),0 0 0 4px rgba(255,255,255,.2),inset 0 1px 0 rgba(255,255,255,.3)}

@keyframes heartPop{
    0%{transform:scale(.7)}
    40%{transform:scale(1.25)}
    70%{transform:scale(.95)}
    100%{transform:scale(1)}
}

.section-new .home-post-card .add-to-playlist-btn{top:14%;left:12%}

/* ============================================================
   Single Action Row - Play + Playlist Buttons
   ============================================================ */
.single-action-row{display:flex;align-items:center;justify-content:center;gap:12px;margin:1em 0 1.5em;flex-wrap:wrap}
.single-action-row .player-trigger-btn{margin:0}

/* ============================================================
   Single Playlist Button - Circular Glass Style
   ============================================================ */
.single-playlist-btn{position:relative;width:54px;height:54px;border-radius:50%;background:rgba(255,255,255,.9);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);border:2px solid rgba(0,0,0,.06);color:#666;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;padding:0;transition:all .35s cubic-bezier(.34,1.56,.64,1);flex-shrink:0;box-shadow:0 4px 14px rgba(0,0,0,.08),inset 0 1px 0 rgba(255,255,255,.9);-webkit-tap-highlight-color:transparent;outline:none}
.single-playlist-btn:hover{transform:scale(1.08) translateY(-2px);background:#fff;border-color:var(--main--hue);color:var(--main--hue);box-shadow:0 10px 25px rgba(0,0,0,.15),inset 0 1px 0 rgba(255,255,255,.9)}
.single-playlist-btn:active{transform:scale(.94)}

.single-playlist-btn .spb-heart{width:24px;height:24px;transition:all .3s cubic-bezier(.34,1.56,.64,1);flex-shrink:0}
.single-playlist-btn:hover .spb-heart{transform:scale(1.1)}

.single-playlist-btn.added{background:var(--main--hue);border-color:var(--main--hue);color:#fff;box-shadow:0 8px 22px rgba(0,0,0,.25),0 0 0 4px rgba(245,87,108,.15),inset 0 1px 0 rgba(255,255,255,.25)}
.single-playlist-btn.added .spb-heart{fill:#fff;stroke:#fff;stroke-width:0;animation:heartPop .5s cubic-bezier(.34,1.56,.64,1)}
.single-playlist-btn.added:hover{background:var(--hover--hue);border-color:var(--hover--hue);transform:scale(1.08) translateY(-2px)}

/* Tooltip */
.spb-tooltip{position:absolute;bottom:calc(100% + 10px);left:50%;transform:translateX(-50%) translateY(5px);background:#1b262c;color:#fff;padding:7px 14px;border-radius:8px;font-size:12px;font-weight:600;white-space:nowrap;opacity:0;pointer-events:none;transition:all .3s cubic-bezier(.34,1.56,.64,1);box-shadow:0 6px 20px rgba(0,0,0,.25);font-family:inherit}
.spb-tooltip::after{content:'';position:absolute;top:100%;left:50%;transform:translateX(-50%);border:6px solid transparent;border-top-color:#1b262c}
.single-playlist-btn:hover .spb-tooltip{opacity:1;transform:translateX(-50%) translateY(0)}
.single-playlist-btn.added .spb-tooltip{background:var(--main--hue)}
.single-playlist-btn.added .spb-tooltip::after{border-top-color:var(--main--hue)}

/* ============================================================
   Toast
   ============================================================ */
.user-playlist-toast{position:fixed;bottom:100px;left:50%;transform:translateX(-50%) translateY(100px);background:#1b262c;color:#fff;padding:12px 24px;border-radius:30px;font-size:14px;font-weight:500;box-shadow:0 10px 40px rgba(0,0,0,.3);z-index:9999999;opacity:0;pointer-events:none;transition:all .4s cubic-bezier(.34,1.56,.64,1);display:flex;align-items:center;gap:8px;max-width:90%}
.user-playlist-toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.user-playlist-toast svg{width:18px;height:18px;fill:#4ade80;flex-shrink:0}
.user-playlist-toast.error svg{fill:var(--main--hue)}

/* ============================================================
   My Playlist Page
   ============================================================ */
.my-playlist-header{padding:30px 20px;margin-bottom:30px;background:linear-gradient(135deg,var(--main--hue),var(--hover--hue));border-radius:20px;color:#fff;text-align:center;box-shadow:0 10px 40px rgba(0,0,0,.2);position:relative;overflow:hidden}
.my-playlist-header h1{position:relative;z-index:1;font-size:28px;margin:0 0 8px;display:flex;align-items:center;justify-content:center;gap:12px}
.my-playlist-header p{position:relative;z-index:1;color:rgba(255,255,255,.9);margin:0 0 20px;font-size:15px}
.my-playlist-actions{position:relative;z-index:1;display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

.my-playlist-play-all,
.my-playlist-clear-all{padding:12px 28px;border-radius:50px;font-size:14px;font-weight:600;border:none;cursor:pointer;transition:all .3s ease;display:inline-flex;align-items:center;gap:8px;font-family:inherit}
.my-playlist-play-all{background:#fff;color:var(--main--hue);box-shadow:0 8px 25px rgba(0,0,0,.15)}
.my-playlist-play-all:hover{transform:translateY(-3px);box-shadow:0 12px 35px rgba(0,0,0,.2)}
.my-playlist-clear-all{background:rgba(255,255,255,.15);color:#fff;border:1px solid rgba(255,255,255,.3)}
.my-playlist-clear-all:hover{background:rgba(255,255,255,.25)}
.my-playlist-play-all:disabled,
.my-playlist-clear-all:disabled{opacity:.5;cursor:not-allowed;transform:none}

.my-playlist-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:40px}
.my-playlist-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.06);transition:all .3s ease;border:2px solid transparent;display:flex;flex-direction:column}
.my-playlist-card:hover{transform:translateY(-6px);box-shadow:0 12px 35px rgba(0,0,0,.12);border-color:rgba(0,0,0,.04)}
.my-playlist-card .card-image{width:100%;aspect-ratio:1/1;object-fit:cover;display:block;background:#f5f5f5}
.my-playlist-card .card-body{padding:14px 16px 8px;flex:1}
.my-playlist-card .card-body h3{font-size:15px;margin:0 0 4px;color:#1b262c;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.my-playlist-card .card-body .artist-name{font-size:13px;color:#888}
.my-playlist-card .card-actions{padding:0 16px 14px;display:flex;gap:8px;flex-wrap:wrap}
.my-playlist-card .card-actions button,
.my-playlist-card .card-actions a{flex:1;min-width:55px;text-align:center;padding:7px 0;border-radius:8px;font-size:12px;border:none;cursor:pointer;text-decoration:none;transition:opacity .2s;font-family:inherit}
.my-playlist-card .card-actions .btn-play{background:var(--main--hue);color:#fff}
.my-playlist-card .card-actions .btn-download{background:#1b262c;color:#fff}
.my-playlist-card .card-actions .btn-remove{background:#fee;color:var(--main--hue);flex:0 0 40px}

.my-playlist-empty{text-align:center;padding:80px 20px;background:#fff;border-radius:20px;box-shadow:0 4px 20px rgba(0,0,0,.06)}
.my-playlist-empty svg{width:80px;height:80px;fill:#e0e0e0;margin-bottom:20px}
.my-playlist-empty h3{font-size:20px;color:#1b262c;margin:0 0 10px}
.my-playlist-empty p{color:#888;margin:0 0 20px;font-size:14px}
.my-playlist-empty a{display:inline-block;padding:12px 30px;background:var(--main--hue);color:#fff;border-radius:50px;text-decoration:none;font-weight:600;transition:all .3s ease}
.my-playlist-empty a:hover{background:var(--hover--hue);transform:translateY(-2px)}

/* ============================================================
   Header Playlist Button - Premium Design
   ============================================================ */
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}

.header-playlist-btn{position:relative;display:inline-flex;align-items:center;gap:10px;padding:8px 16px 8px 12px;border-radius:100px;background:linear-gradient(135deg,rgba(255,255,255,.18) 0%,rgba(255,255,255,.08) 100%);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);border:1px solid rgba(255,255,255,.22);color:#fff;text-decoration:none;transition:all .4s cubic-bezier(.34,1.4,.64,1);flex-shrink:0;overflow:hidden;-webkit-tap-highlight-color:transparent;box-shadow:0 4px 16px rgba(0,0,0,.12),inset 0 1px 0 rgba(255,255,255,.2)}

.header-playlist-btn::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.25),transparent);transition:left .6s ease}
.header-playlist-btn:hover::before{left:100%}
.header-playlist-btn:hover{background:linear-gradient(135deg,rgba(255,255,255,.28) 0%,rgba(255,255,255,.15) 100%);border-color:rgba(255,255,255,.4);transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.2),0 0 0 4px rgba(255,255,255,.05),inset 0 1px 0 rgba(255,255,255,.3)}
.header-playlist-btn:active{transform:translateY(0)}

.hpb-icon{position:relative;display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;flex-shrink:0}
.hpb-icon svg{width:18px;height:18px;fill:#fff;filter:drop-shadow(0 1px 2px rgba(0,0,0,.15));transition:transform .3s cubic-bezier(.34,1.56,.64,1)}
.header-playlist-btn:hover .hpb-icon svg{transform:scale(1.15)}
.header-playlist-btn.has-items .hpb-icon svg{animation:hpbHeartPop .6s cubic-bezier(.34,1.56,.64,1)}

@keyframes hpbHeartPop{
    0%{transform:scale(.7)}
    40%{transform:scale(1.3)}
    70%{transform:scale(.95)}
    100%{transform:scale(1)}
}

.hpb-badge{position:absolute;top:-6px;right:-6px;min-width:18px;height:18px;padding:0 4px;background:#f5576c;color:#fff;font-size:10px;font-weight:800;border-radius:9px;display:flex;align-items:center;justify-content:center;border:2px solid #fff;font-variant-numeric:tabular-nums;line-height:1;transform:scale(0) rotate(-180deg);transition:transform .4s cubic-bezier(.34,1.56,.64,1);box-shadow:0 2px 8px rgba(245,87,108,.5);pointer-events:none}
.header-playlist-btn.has-items .hpb-badge{transform:scale(1) rotate(0deg)}

.hpb-text{font-size:13px;font-weight:700;letter-spacing:-.2px;white-space:nowrap;color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.15);transition:all .3s ease}
.hpb-arrow{display:inline-flex;align-items:center;justify-content:center;width:14px;height:14px;flex-shrink:0;transition:transform .3s cubic-bezier(.34,1.56,.64,1);opacity:.6}
.hpb-arrow svg{width:14px;height:14px;fill:#fff}
.header-playlist-btn:hover .hpb-arrow{transform:translateX(-3px);opacity:1}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width:992px){
    .my-playlist-grid{grid-template-columns:repeat(2,1fr);gap:16px}

    .hpb-text,
    .hpb-arrow{display:none}
    .header-playlist-btn{width:42px;height:42px;padding:0;justify-content:center}
    .hpb-icon{width:20px;height:20px}
}

@media (max-width:800px){
    .header-playlist-btn{display:none}
}

@media (max-width:600px){
    .my-playlist-grid{grid-template-columns:repeat(2,1fr);gap:12px}
    .my-playlist-header h1{font-size:20px}
    .my-playlist-header p{font-size:13px}
    .my-playlist-play-all,
    .my-playlist-clear-all{padding:10px 20px;font-size:13px}
    .my-playlist-card .card-body h3{font-size:13px}
    .my-playlist-card .card-actions button,
    .my-playlist-card .card-actions a{font-size:11px;padding:5px 0}
    .user-playlist-toast{font-size:13px;padding:10px 18px}

    .add-to-playlist-btn{width:26px;height:26px;top:8px;left:8px;opacity:.85;background:rgba(15,15,22,.55);box-shadow:0 3px 10px rgba(0,0,0,.25)}
    .add-to-playlist-btn svg{width:13px;height:13px;stroke-width:2}

    /* Single page playlist button on mobile */
    .single-action-row{gap:8px;margin:1em 0 1.2em}
    .single-playlist-btn{width:48px;height:48px}
    .single-playlist-btn .spb-heart{width:21px;height:21px}
    .single-action-row .player-trigger-btn{padding:12px 24px;font-size:14px;flex:1;justify-content:center}
    .spb-tooltip{display:none}
}

@media (max-width:400px){
    .single-action-row .player-trigger-btn{font-size:13px;padding:11px 18px}
    .single-action-row .player-trigger-btn span{font-size:12px}
}