/* Interactive components shared by the home page: games, leaderboards, AI chat,
 * comment panel, back-to-top, Hidden Orbit, scroll reveal and keyframes.
 * Page layout and look live in css/home.css. */

    .reveal{opacity:0;transform:translateY(32px);transition:opacity .7s ease,transform .7s ease;}
    .reveal.visible{opacity:1;transform:translateY(0);}
    .reveal-delay-1{transition-delay:.1s;}.reveal-delay-2{transition-delay:.2s;}.reveal-delay-3{transition-delay:.3s;}.reveal-delay-4{transition-delay:.4s;}
    /* ══ GAME ══ */
    .game-section{max-width:1080px;margin:0 auto;padding:0 25px 80px;position:relative;z-index:1;}
    .game-card{border-radius:28px;overflow:hidden;background:linear-gradient(135deg,rgba(8,18,41,0.95),rgba(10,20,50,0.9));border:1px solid rgba(0,175,202,0.25);box-shadow:0 30px 80px rgba(0,0,0,0.5),inset 0 1px 0 rgba(0,175,202,0.1);}
    .game-header{display:flex;align-items:center;justify-content:space-between;padding:20px 28px;border-bottom:1px solid rgba(255,255,255,0.08);flex-wrap:wrap;gap:12px;}
    .game-title-wrap{display:flex;align-items:center;gap:12px;}
    .game-title{font-family:'Montserrat',sans-serif;font-size:18px;color:white;}
    .game-badge{padding:4px 12px;border-radius:999px;background:rgba(0,175,202,0.15);border:1px solid rgba(0,175,202,0.3);color:#7FDCEA;font-size:10px;font-weight:800;letter-spacing:1px;text-transform:uppercase;}
    .game-stats-bar{display:flex;gap:20px;align-items:center;}
    .gs-item{display:flex;flex-direction:column;align-items:center;}
    .gs-label{font-size:10px;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:1px;}
    .gs-val{font-family:'Montserrat',sans-serif;font-size:20px;color:var(--accent);font-weight:900;}
    .gs-item.lives .gs-val{color:#f87171;}
    .gs-item.level .gs-val{color:#f59e0b;}
    #game-canvas{display:block;width:100%;image-rendering:pixelated;cursor:none;touch-action:none;}
    .game-controls{display:flex;align-items:center;justify-content:space-between;padding:16px 28px;border-top:1px solid rgba(255,255,255,0.08);flex-wrap:wrap;gap:10px;}
    .ctrl-hint{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px;}
    .key-badge{display:inline-block;padding:3px 8px;border-radius:6px;background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.2);font-size:12px;font-weight:700;color:white;font-family:monospace;}
    .game-btn{padding:10px 22px;border-radius:12px;border:none;cursor:pointer;font-family:'Montserrat',sans-serif;font-size:12px;font-weight:700;background:linear-gradient(135deg,var(--accent),var(--accent2));color:white;transition:.25s;box-shadow:0 6px 20px rgba(10,132,184,0.4);}
    .game-btn:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(10,132,184,0.55);}
    .game-btn.secondary-btn{background:var(--glass);border:1px solid var(--glass-b);box-shadow:none;}
    .touch-controls{display:none;justify-content:space-between;align-items:center;padding:12px 20px;border-top:1px solid rgba(255,255,255,0.06);}
    .touch-btn{width:64px;height:64px;border-radius:50%;border:2px solid rgba(0,175,202,0.4);background:rgba(0,175,202,0.1);color:white;font-size:24px;display:flex;align-items:center;justify-content:center;cursor:pointer;user-select:none;-webkit-user-select:none;transition:.15s;}
    
.touch-btn:active{background:rgba(0,175,202,0.3);border-color:rgba(0,175,202,0.8);}

/* ══ GLOBAL LEADERBOARD ══ */
.leaderboard-panel{margin:18px 28px 26px;padding:20px;border-radius:22px;background:rgba(255,255,255,0.055);border:1px solid rgba(0,175,202,0.18);box-shadow:inset 0 1px 0 rgba(255,255,255,0.06);backdrop-filter:blur(14px);}
.leaderboard-head{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:14px;flex-wrap:wrap;}
.leaderboard-title-wrap{display:flex;align-items:center;gap:10px;}
.leaderboard-icon{width:36px;height:36px;border-radius:12px;background:linear-gradient(135deg,rgba(0,175,202,0.22),rgba(10,132,184,0.12));display:flex;align-items:center;justify-content:center;border:1px solid rgba(0,175,202,0.24);}
.leaderboard-title{font-family:'Montserrat',sans-serif;font-size:15px;letter-spacing:1px;color:white;}
.leaderboard-sub{font-size:12px;color:var(--muted);margin-top:3px;}
.leaderboard-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;}
.leaderboard-refresh,.leaderboard-name-btn{border:1px solid rgba(255,255,255,0.12);background:rgba(255,255,255,0.06);color:#cbd5e1;border-radius:999px;padding:8px 13px;font-family:'Montserrat',sans-serif;font-size:12px;font-weight:800;cursor:pointer;transition:.2s;}
.leaderboard-refresh:hover,.leaderboard-name-btn:hover{border-color:rgba(0,175,202,0.45);color:white;background:rgba(0,175,202,0.12);transform:translateY(-2px);}
.leaderboard-list{display:flex;flex-direction:column;gap:8px;min-height:54px;}
.lb-row{display:grid;grid-template-columns:42px 1fr 92px;align-items:center;gap:10px;padding:11px 13px;border-radius:15px;background:rgba(8,18,41,0.38);border:1px solid rgba(255,255,255,0.08);}
.lb-rank{font-family:'Montserrat',sans-serif;font-size:13px;color:#7FDCEA;font-weight:900;}
.lb-name{font-weight:900;color:#e5f3ff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.lb-meta{font-size:11px;color:#64748b;margin-top:2px;}
.lb-score{font-family:'Montserrat',sans-serif;color:#FEC50C;font-size:15px;font-weight:900;text-align:right;}
.lb-empty{padding:16px;border-radius:15px;background:rgba(8,18,41,0.28);border:1px dashed rgba(255,255,255,0.11);color:#94a3b8;font-size:13px;text-align:center;}
.lb-submit-float{display:none;}

.score-modal{position:fixed;inset:0;z-index:99997;display:none;align-items:center;justify-content:center;background:rgba(8,18,41,0.78);backdrop-filter:blur(14px);padding:20px;}
.score-modal.open{display:flex;animation:lbFade .22s ease forwards;}
.score-box{width:min(430px,92vw);border-radius:28px;padding:26px;background:linear-gradient(135deg,rgba(255,255,255,0.105),rgba(255,255,255,0.045));border:1px solid rgba(255,255,255,0.16);box-shadow:0 28px 90px rgba(0,0,0,0.55),0 0 60px rgba(0,175,202,0.12);position:relative;overflow:hidden;}
.score-box::before{content:'';position:absolute;inset:-60% -30%;background:radial-gradient(circle,rgba(0,175,202,0.16),transparent 42%);animation:spin 22s linear infinite;pointer-events:none;}
.score-box-inner{position:relative;z-index:2;}
.score-kicker{font-family:'Montserrat',sans-serif;font-size:11px;letter-spacing:2.4px;text-transform:uppercase;color:#7FDCEA;margin-bottom:10px;}
.score-title{font-family:'Montserrat',sans-serif;font-size:24px;line-height:1.25;margin-bottom:8px;background:linear-gradient(135deg,#fff,#7FDCEA);-webkit-background-clip:text;-webkit-text-fill-color:transparent;}
.score-desc{color:#cbd5e1;font-size:14px;line-height:1.6;margin-bottom:18px;}
.score-final{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 16px;border-radius:18px;background:rgba(8,18,41,0.42);border:1px solid rgba(255,255,255,0.10);margin-bottom:16px;}
.score-final span{color:#94a3b8;font-size:12px;font-weight:900;text-transform:uppercase;letter-spacing:1px;}
.score-final strong{font-family:'Montserrat',sans-serif;color:#FEC50C;font-size:24px;}
.score-input{width:100%;border-radius:16px;border:1px solid rgba(255,255,255,0.13);background:rgba(8,18,41,0.46);color:white;padding:13px 15px;font-family:'Montserrat',sans-serif;font-size:15px;font-weight:800;outline:none;margin-bottom:12px;}
.score-input:focus{border-color:rgba(0,175,202,0.5);box-shadow:0 0 0 3px rgba(0,175,202,0.09);}
.score-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:8px;}
.score-actions button{flex:1;min-width:120px;border:none;border-radius:14px;padding:12px 16px;font-family:'Montserrat',sans-serif;font-size:14px;font-weight:900;cursor:pointer;transition:.22s;}
.score-submit{background:linear-gradient(135deg,var(--accent),var(--accent2));color:white;box-shadow:0 8px 25px rgba(10,132,184,0.35);}
.score-cancel{background:rgba(255,255,255,0.07);color:#cbd5e1;border:1px solid rgba(255,255,255,0.13)!important;}
.score-actions button:hover{transform:translateY(-2px);}
.score-status{min-height:20px;margin-top:12px;font-size:13px;color:#94a3b8;}
.score-status.ok{color:#86efac;}.score-status.err{color:#fca5a5;}
@keyframes lbFade{from{opacity:0}to{opacity:1}}




    /* ══ SPACE FORMULA CHALLENGE ══ */
    .dock-section{max-width:1080px;margin:0 auto;padding:0 25px 80px;position:relative;z-index:1;}
    .dock-card{border-radius:28px;overflow:hidden;background:linear-gradient(135deg,rgba(8,18,41,0.96),rgba(14,22,54,0.92));border:1px solid rgba(125,211,252,0.25);box-shadow:0 30px 80px rgba(0,0,0,0.5),inset 0 1px 0 rgba(125,211,252,0.1);}
    .dock-header{display:flex;align-items:center;justify-content:space-between;padding:20px 28px;border-bottom:1px solid rgba(255,255,255,0.08);flex-wrap:wrap;gap:12px;}
    .dock-title-wrap{display:flex;align-items:center;gap:12px;}
    .dock-title{font-family:'Montserrat',sans-serif;font-size:18px;color:white;}
    .dock-badge{padding:4px 12px;border-radius:999px;background:rgba(125,211,252,0.13);border:1px solid rgba(125,211,252,0.3);color:#BDEFF6;font-size:10px;font-weight:800;letter-spacing:1px;text-transform:uppercase;}
    .dock-stats{display:flex;gap:18px;align-items:center;flex-wrap:wrap;}
    .dock-stat{display:flex;flex-direction:column;align-items:center;}
    .dock-label{font-size:10px;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:1px;}
    .dock-value{font-family:'Montserrat',sans-serif;font-size:18px;color:var(--accent);font-weight:900;}
    .dock-value.safe{color:#22c55e;}.dock-value.warn{color:#f59e0b;}.dock-value.danger{color:#ef4444;}
    .formula-game-body{display:grid;grid-template-columns:1fr 1.05fr;gap:0;min-height:420px;}
    #dock-canvas{display:block;width:100%;height:100%;min-height:420px;background:#081229;cursor:default;}
    .formula-panel{padding:28px;border-left:1px solid rgba(255,255,255,0.08);display:flex;flex-direction:column;justify-content:center;gap:18px;background:rgba(255,255,255,0.02);}
    .formula-question{font-family:'Montserrat',sans-serif;font-size:20px;line-height:1.45;color:#fff;}
    .formula-sub{color:#94a3b8;font-size:13px;line-height:1.7;}
    .formula-options{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
    .formula-option{border:1px solid rgba(255,255,255,0.12);background:rgba(255,255,255,0.06);border-radius:16px;color:#e2e8f0;padding:15px 14px;font-family:'Montserrat',sans-serif;font-size:15px;font-weight:800;cursor:pointer;transition:.2s;text-align:left;min-height:58px;}
    .formula-option:hover{transform:translateY(-2px);border-color:rgba(0,175,202,0.45);background:rgba(0,175,202,0.1);}
    .formula-option.correct{border-color:rgba(34,197,94,0.8);background:rgba(34,197,94,0.18);color:#bbf7d0;}
    .formula-option.wrong{border-color:rgba(239,68,68,0.8);background:rgba(239,68,68,0.15);color:#fecaca;}
    .formula-feedback{min-height:42px;color:#cbd5e1;font-size:14px;line-height:1.6;border-radius:14px;padding:12px 14px;background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.08);}
    .formula-progress{height:10px;background:rgba(255,255,255,0.08);border-radius:999px;overflow:hidden;}
    .formula-progress span{display:block;height:100%;width:0%;background:linear-gradient(90deg,var(--accent),var(--gold));transition:width .35s ease;box-shadow:0 0 16px rgba(0,175,202,.5);}
    .dock-controls{display:flex;align-items:center;justify-content:space-between;padding:16px 28px;border-top:1px solid rgba(255,255,255,0.08);gap:12px;flex-wrap:wrap;}
    .dock-tip{color:var(--muted);font-size:13px;line-height:1.6;}
    @media(max-width:960px){.formula-game-body{grid-template-columns:1fr}.formula-panel{border-left:none;border-top:1px solid rgba(255,255,255,0.08);padding:22px}.formula-options{grid-template-columns:1fr}.dock-stats{gap:12px}.dock-value{font-size:16px}}

    /* ══ AI CHAT ══ */
    .ai-section{max-width:1080px;margin:0 auto;padding:0 25px 80px;position:relative;z-index:1;}
    .ai-card{border-radius:28px;overflow:hidden;background:linear-gradient(135deg,rgba(8,18,41,0.97),rgba(8,16,42,0.95));border:1px solid rgba(0,175,202,0.22);box-shadow:0 30px 80px rgba(0,0,0,0.5),inset 0 1px 0 rgba(0,175,202,0.08);position:relative;}
    .ai-stars-bg{position:absolute;inset:0;pointer-events:none;overflow:hidden;}
    .ai-header{display:flex;align-items:center;gap:14px;padding:20px 28px 16px;border-bottom:1px solid rgba(255,255,255,0.07);background:rgba(255,255,255,0.02);position:relative;z-index:2;}
    .ai-avatar-wrap{position:relative;flex-shrink:0;}
    .ai-avatar{width:48px;height:48px;border-radius:50%;background:radial-gradient(circle at 32% 28%,#67e8f9,#0A84B8 50%,#040d26);display:flex;align-items:center;justify-content:center;font-size:22px;box-shadow:0 0 24px rgba(0,175,202,0.6);}
    .ai-online-dot{position:absolute;bottom:2px;right:2px;width:12px;height:12px;border-radius:50%;background:#22c55e;border:2px solid #081229;box-shadow:0 0 8px #22c55e;animation:pulse 2s infinite;}
    .ai-info h3{font-family:'Montserrat',sans-serif;font-size:15px;color:#fff;margin:0 0 3px;letter-spacing:1px;}
    .ai-info p{font-size:12px;color:#475569;margin:0;}
    .ai-header-badge{margin-left:auto;padding:5px 14px;border-radius:999px;background:rgba(0,175,202,0.1);border:1px solid rgba(0,175,202,0.3);color:#7FDCEA;font-size:10px;font-weight:800;letter-spacing:1.5px;text-transform:uppercase;}
    .ai-messages{padding:24px 24px 12px;display:flex;flex-direction:column;gap:16px;overflow-y:auto;max-height:380px;min-height:220px;position:relative;z-index:2;scrollbar-width:thin;scrollbar-color:rgba(0,175,202,0.2) transparent;}
    .ai-messages::-webkit-scrollbar{width:4px;}
    .ai-messages::-webkit-scrollbar-track{background:transparent;}
    .ai-messages::-webkit-scrollbar-thumb{background:rgba(0,175,202,0.2);border-radius:2px;}
    .ai-msg{display:flex;gap:10px;animation:msgIn .35s ease forwards;opacity:0;transform:translateY(8px);}
    @keyframes msgIn{to{opacity:1;transform:translateY(0);}}
    .ai-msg.user{flex-direction:row-reverse;}
    .ai-msg-av{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0;background:rgba(255,255,255,0.07);border:1px solid rgba(255,255,255,0.1);}
    .ai-msg.bot .ai-msg-av{background:radial-gradient(circle,#2BC0D6,#0A84B8);font-size:13px;}
    .ai-bubble{max-width:82%;padding:13px 17px;border-radius:18px;font-size:14px;line-height:1.7;color:#cbd5e1;}
    .ai-msg.bot .ai-bubble{background:rgba(0,175,202,0.07);border:1px solid rgba(0,175,202,0.16);border-top-left-radius:4px;}
    .ai-msg.user .ai-bubble{background:linear-gradient(135deg,rgba(0,175,202,0.18),rgba(10,132,184,0.18));border:1px solid rgba(0,175,202,0.28);border-top-right-radius:4px;color:#e2e8f0;}
    .ai-bubble b{color:#2BC0D6;}
    .ai-bubble em{color:#FEC50C;font-style:normal;font-weight:700;}
    .typing-ind{display:flex;gap:5px;align-items:center;padding:13px 17px;background:rgba(0,175,202,0.06);border:1px solid rgba(0,175,202,0.14);border-radius:18px;border-top-left-radius:4px;width:fit-content;}
    .t-dot{width:7px;height:7px;border-radius:50%;background:#2BC0D6;animation:tPulse 1.2s ease infinite;}
    .t-dot:nth-child(2){animation-delay:.2s;}
    .t-dot:nth-child(3){animation-delay:.4s;}
    @keyframes tPulse{0%,100%{opacity:.3;transform:scale(.8);}50%{opacity:1;transform:scale(1.1);}}
    .chips-label{font-family:'Montserrat',sans-serif;font-size:9px;letter-spacing:2px;color:#1e293b;text-transform:uppercase;padding:0 24px 6px;position:relative;z-index:2;}
    .ai-chips{padding:0 24px 14px;display:flex;gap:8px;flex-wrap:wrap;position:relative;z-index:2;}
    .ai-chip{padding:6px 13px;border-radius:999px;background:rgba(255,255,255,0.05);border:1px solid rgba(255,255,255,0.09);color:#64748b;font-size:12px;font-weight:600;cursor:pointer;transition:.2s;white-space:nowrap;}
    .ai-chip:hover{background:rgba(0,175,202,0.1);border-color:rgba(0,175,202,0.3);color:#7FDCEA;transform:translateY(-2px);}
    .ai-input-row{padding:14px 20px;border-top:1px solid rgba(255,255,255,0.07);display:flex;gap:10px;align-items:flex-end;background:rgba(255,255,255,0.02);position:relative;z-index:2;}
    #ai-input{flex:1;background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.11);border-radius:14px;padding:12px 16px;color:#e2e8f0;font-family:'Montserrat',sans-serif;font-size:14px;resize:none;outline:none;min-height:44px;max-height:120px;transition:border-color .2s;line-height:1.5;}
    #ai-input:focus{border-color:rgba(0,175,202,0.4);}
    #ai-input::placeholder{color:#334155;}
    #ai-send{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,#2BC0D6,#0A84B8);border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:18px;transition:.2s;box-shadow:0 6px 20px rgba(10,132,184,0.4);flex-shrink:0;color:white;}
    #ai-send:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(10,132,184,0.55);}
    #ai-send:disabled{opacity:.35;cursor:not-allowed;transform:none;}
    .ai-footer-note{text-align:center;font-size:11px;color:#1e293b;padding:10px;position:relative;z-index:2;letter-spacing:0.3px;}

    #chat-btn{position:fixed;right:25px;bottom:25px;width:58px;height:58px;border-radius:50%;border:none;background:linear-gradient(135deg,var(--accent),var(--accent2));color:white;font-size:22px;cursor:pointer;z-index:2000;box-shadow:0 10px 30px rgba(10,132,184,0.55);transition:.3s;}
    #chat-btn:hover{transform:translateY(-4px) scale(1.07);}
    #chat-badge{position:absolute;top:-4px;right:-4px;width:18px;height:18px;border-radius:50%;background:#ef4444;font-size:10px;font-weight:800;display:none;align-items:center;justify-content:center;}
    #chat-panel{position:fixed;right:25px;bottom:94px;width:320px;max-height:440px;display:none;flex-direction:column;padding:18px;border-radius:22px;background:rgba(5,12,30,0.98);border:1px solid var(--glass-b);backdrop-filter:blur(24px);box-shadow:0 25px 60px rgba(0,0,0,0.6);z-index:1999;overflow-y:auto;animation:slideUp .3s ease;}
    @keyframes slideUp{from{opacity:0;transform:translateY(16px);}to{opacity:1;transform:translateY(0);}}
    #chat-panel h3{font-family:'Montserrat',sans-serif;font-size:16px;margin-bottom:14px;color:var(--accent);}
    .chat-item{padding:12px;margin-bottom:10px;border-radius:14px;background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.09);}
    .chat-name{color:var(--accent);font-weight:800;font-size:13px;margin-bottom:4px;}
    .chat-text{color:#e5e7eb;font-size:13px;line-height:1.5;}
    .chat-time{color:var(--muted);font-size:11px;margin-top:6px;}
    .chat-link{display:block;margin-top:12px;padding:11px;text-align:center;border-radius:12px;color:white;text-decoration:none;font-weight:800;font-size:14px;background:linear-gradient(135deg,var(--accent),var(--accent2));}
    .chat-empty{color:var(--muted);font-size:13px;text-align:center;padding:16px;}
    #back-top{position:fixed;left:25px;bottom:25px;width:46px;height:46px;border-radius:50%;border:1px solid var(--glass-b);background:var(--glass);color:white;font-size:18px;cursor:pointer;z-index:2000;backdrop-filter:blur(12px);display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:.3s;box-shadow:0 8px 24px rgba(0,0,0,0.3);}
    #back-top.show{opacity:1;pointer-events:all;}
    #back-top:hover{background:rgba(0,175,202,0.2);border-color:var(--accent);transform:translateY(-3px);}
    .meteor{position:fixed;border-radius:999px;background:linear-gradient(90deg,white,transparent);pointer-events:none;z-index:0;opacity:0;animation:meteor linear forwards;}

    @keyframes fadeUp{from{opacity:0;transform:translateY(24px);}to{opacity:1;transform:translateY(0);}}
    @keyframes float{0%,100%{transform:translateY(0) rotate(0.3deg);}50%{transform:translateY(-20px) rotate(-0.3deg);}}
    @keyframes spin{from{transform:rotate(0);}to{transform:rotate(360deg);}}
    @keyframes blink{0%,100%{opacity:1;}50%{opacity:0;}}
    @keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.5;transform:scale(.7);}}
    @keyframes meteor{0%{transform:translateX(0) translateY(0);opacity:1;}100%{transform:translateX(-600px) translateY(300px);opacity:0;}}
@media(max-width:960px){
  #chat-panel{right:12px;left:12px;width:auto;}
  .touch-controls{display:flex;}
  .game-controls .ctrl-hint{display:none;}
  .ai-chips{gap:6px;}
  .ai-chip{font-size:11px;padding:5px 10px;}
}
  

@keyframes secretOverlayIn{from{opacity:0;transform:scale(.985)}to{opacity:1;transform:scale(1)}}
@keyframes secretOverlayOut{from{opacity:1;transform:scale(1)}to{opacity:0;transform:scale(.99)}}
@keyframes secretCardIn{from{opacity:0;transform:translateY(22px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}
@keyframes secretPulse{0%,100%{opacity:.58;transform:scale(1)}50%{opacity:1;transform:scale(1.08)}}
@keyframes secretSpin{from{transform:rotate(0)}to{transform:rotate(360deg)}}
@keyframes secretSpinReverse{from{transform:rotate(360deg)}to{transform:rotate(0)}}
@keyframes secretLaunch{0%{opacity:0;transform:translate(-50%,90px) scale(.55) rotate(-8deg)}18%{opacity:1}70%{opacity:1}100%{opacity:0;transform:translate(-50%,-58vh) scale(1.18) rotate(12deg)}}
@keyframes secretSpark{0%{opacity:0;transform:translate3d(0,0,0) scale(.25) rotate(0deg)}18%{opacity:1}100%{opacity:0;transform:translate3d(var(--x),var(--y),0) scale(1.2) rotate(var(--rot))}}
@keyframes secretGlowLine{0%{transform:scaleX(0);opacity:0}40%{opacity:1}100%{transform:scaleX(1);opacity:.78}}
@keyframes secretScan{0%{transform:translateY(-115%);opacity:0}10%{opacity:.88}100%{transform:translateY(122%);opacity:0}}
@keyframes secretShake{10%,90%{transform:translateX(-2px)}20%,80%{transform:translateX(4px)}30%,50%,70%{transform:translateX(-6px)}40%,60%{transform:translateX(6px)}}
@keyframes secretPhotoReveal{0%{opacity:0;filter:blur(16px) brightness(.50) saturate(.62);transform:scale(1.06)}55%{opacity:1;filter:blur(6px) brightness(.86) saturate(.9)}100%{opacity:1;filter:blur(0) brightness(1) saturate(1.05);transform:scale(1)}}
@keyframes secretFrameReveal{0%{opacity:0;transform:translateY(18px) scale(.92);box-shadow:0 0 0 rgba(0,175,202,0)}100%{opacity:1;transform:translateY(0) scale(1);box-shadow:0 0 56px rgba(0,175,202,.42),0 0 120px rgba(168,85,247,.18)}}
@keyframes gateCorePulse{0%,100%{box-shadow:0 0 34px rgba(0,175,202,.28),inset 0 0 30px rgba(0,175,202,.08)}50%{box-shadow:0 0 70px rgba(0,175,202,.55),inset 0 0 44px rgba(0,175,202,.14)}}
@keyframes gateRingSweep{from{transform:rotate(0)}to{transform:rotate(360deg)}}
@keyframes envelopeFloat{0%,100%{transform:translateY(0) rotate(-.3deg)}50%{transform:translateY(-10px) rotate(.3deg)}}
@keyframes afterglowFade{0%{opacity:0}18%{opacity:1}100%{opacity:0}}
@keyframes starTwinkle{0%,100%{opacity:.35;transform:scale(.85)}50%{opacity:1;transform:scale(1.25)}}
body.secret-mode-active{overflow:hidden;}
#secret-overlay{display:none;position:fixed;inset:0;z-index:99999;background:radial-gradient(circle at 50% 8%,rgba(0,175,202,.20),transparent 32%),radial-gradient(circle at 78% 82%,rgba(254,197,12,.10),transparent 30%),radial-gradient(circle at 14% 75%,rgba(168,85,247,.11),transparent 32%),rgba(8,18,41,.972);backdrop-filter:blur(25px);align-items:center;justify-content:center;padding:26px;overflow:hidden;}
#secret-overlay.open{display:flex;animation:secretOverlayIn .45s cubic-bezier(.16,1,.3,1) forwards;}#secret-overlay::-webkit-scrollbar{width:0!important;height:0!important;display:none!important;}
#secret-overlay::before{content:'';position:absolute;inset:-22%;background-image:radial-gradient(circle,rgba(255,255,255,.70) 1px,transparent 1.4px);background-size:46px 46px;opacity:.13;animation:secretSpin 96s linear infinite;}
#secret-overlay::after{content:'';position:absolute;left:50%;top:50%;width:560px;height:560px;transform:translate(-50%,-50%);border-radius:50%;border:1px solid rgba(0,175,202,.13);box-shadow:0 0 90px rgba(0,175,202,.13),inset 0 0 80px rgba(0,175,202,.06);pointer-events:none;}
.secret-close{position:absolute;top:22px;right:24px;min-width:42px;height:42px;border-radius:999px;border:1px solid rgba(255,255,255,.15);background:rgba(255,255,255,.06);color:#e2e8f0;font-size:18px;cursor:pointer;z-index:8;transition:.2s;backdrop-filter:blur(14px);display:flex;align-items:center;justify-content:center;gap:7px;padding:0 14px;font-weight:900;}
.secret-close:hover{transform:translateY(-2px);border-color:rgba(0,175,202,.55);background:rgba(0,175,202,.13);box-shadow:0 0 24px rgba(0,175,202,.18);}
.secret-close-x{font-size:21px;line-height:1;}.secret-close-text{font-size:11px;letter-spacing:1.3px;text-transform:uppercase;font-family:'Montserrat',sans-serif;color:#BDEFF6;}
.secret-launch{position:absolute;left:50%;bottom:18%;font-size:36px;filter:drop-shadow(0 0 26px rgba(0,175,202,.85));opacity:0;z-index:2;pointer-events:none;}
#secret-overlay.launching .secret-launch{animation:secretLaunch 1.55s ease-in forwards;}
.secret-spark{position:fixed;left:50vw;top:54vh;font-size:18px;pointer-events:none;z-index:100000;animation:secretSpark 1.7s cubic-bezier(.16,1,.3,1) forwards;text-shadow:0 0 18px rgba(125,211,252,.9);}
.secret-logo-hint{position:fixed;z-index:100000;pointer-events:none;color:#7FDCEA;text-shadow:0 0 16px rgba(125,211,252,.9);font-size:17px;animation:secretSpark 1.15s cubic-bezier(.16,1,.3,1) forwards;}
.logo.secret-awake{filter:drop-shadow(0 0 14px rgba(0,175,202,.8));animation:secretPulse .55s ease 2;}
.logo.secret-awake-strong{filter:drop-shadow(0 0 24px rgba(254,197,12,.75)) drop-shadow(0 0 34px rgba(0,175,202,.58));animation:secretPulse .42s ease 3;}
.secret-gate{position:relative;z-index:5;width:min(520px,88vw);aspect-ratio:1/1;display:grid;place-items:center;animation:secretCardIn .55s cubic-bezier(.16,1,.3,1) both;}
.secret-gate-ring{position:absolute;inset:7%;border-radius:50%;border:1px solid rgba(125,211,252,.24);box-shadow:0 0 48px rgba(0,175,202,.16),inset 0 0 60px rgba(0,175,202,.06);}
.secret-gate-ring::before{content:'';position:absolute;inset:-10px;border-radius:50%;border:2px dashed rgba(125,211,252,.32);animation:gateRingSweep 7s linear infinite;}
.secret-gate-core{position:relative;width:66%;aspect-ratio:1;border-radius:50%;display:grid;place-items:center;text-align:center;background:radial-gradient(circle at 50% 35%,rgba(125,211,252,.18),rgba(8,18,41,.86) 58%,rgba(8,18,41,.96));border:1px solid rgba(125,211,252,.38);animation:gateCorePulse 1.8s ease-in-out infinite;overflow:hidden;}
.secret-gate-core::before,.secret-gate-core::after{content:'';position:absolute;top:-8%;bottom:-8%;width:50%;background:linear-gradient(90deg,rgba(0,175,202,.08),rgba(8,18,41,.92));transition:transform 1.1s cubic-bezier(.16,1,.3,1);}
.secret-gate-core::before{left:0;border-right:1px solid rgba(125,211,252,.25);transform-origin:left center;}
.secret-gate-core::after{right:0;border-left:1px solid rgba(125,211,252,.25);transform-origin:right center;}
#secret-overlay.gate-open .secret-gate-core::before{transform:translateX(-108%) rotateY(15deg);}#secret-overlay.gate-open .secret-gate-core::after{transform:translateX(108%) rotateY(-15deg);}
.secret-gate-content{position:relative;z-index:2;padding:24px;}.secret-gate-title{font-family:'Montserrat',sans-serif;font-size:15px;letter-spacing:2.7px;color:#e0f2fe;text-transform:uppercase;text-shadow:0 0 24px rgba(125,211,252,.75);}.secret-gate-sub{margin-top:12px;color:#93c5fd;font-size:13px;letter-spacing:.4px;}.secret-gate-dots{display:flex;justify-content:center;gap:7px;margin-top:18px}.secret-gate-dots span{width:7px;height:7px;border-radius:50%;background:#2BC0D6;box-shadow:0 0 12px #2BC0D6;animation:secretPulse 1.1s infinite}.secret-gate-dots span:nth-child(2){animation-delay:.18s}.secret-gate-dots span:nth-child(3){animation-delay:.36s}
.secret-shell{position:relative;z-index:4;width:min(780px,94vw);max-height:min(86vh,780px);overflow-y:auto;overflow-x:hidden;scroll-behavior:smooth;overscroll-behavior:contain;scrollbar-width:none;-ms-overflow-style:none;border-radius:32px;background:linear-gradient(135deg,rgba(255,255,255,.095),rgba(255,255,255,.034));border:1px solid rgba(255,255,255,.17);box-shadow:0 32px 110px rgba(0,0,0,.60),inset 0 1px 0 rgba(255,255,255,.17);backdrop-filter:blur(21px);padding:36px 34px;text-align:left;animation:secretCardIn .65s cubic-bezier(.16,1,.3,1) forwards;}
.secret-shell.shell-hidden{display:none;}.secret-shell::-webkit-scrollbar{width:0!important;height:0!important;display:none!important;}.secret-shell::before{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent,rgba(0,175,202,.06),transparent);opacity:0;pointer-events:none;animation:secretScan 2.2s .35s ease-out forwards;}
.secret-topline{display:flex;align-items:center;gap:12px;margin-bottom:24px;}.secret-dot{width:10px;height:10px;border-radius:50%;background:#2BC0D6;box-shadow:0 0 14px #2BC0D6;animation:secretPulse 1.8s ease-in-out infinite;}.secret-kicker{font-family:'Montserrat',sans-serif;font-size:11px;letter-spacing:4px;color:#7FDCEA;text-transform:uppercase;opacity:.88;}.secret-line{height:1px;background:linear-gradient(90deg,rgba(0,175,202,.78),transparent);margin:20px 0 24px;transform-origin:left;animation:secretGlowLine 1.2s ease forwards;}
#secret-message{display:block;white-space:pre-line;color:#e5efff;font-size:17px;line-height:1.86;letter-spacing:.15px;text-shadow:0 0 22px rgba(0,175,202,.10);min-height:150px;padding-bottom:8px;}.secret-caret{display:inline-block;width:8px;height:1.25em;background:#2BC0D6;margin-left:3px;vertical-align:-.2em;animation:secretPulse .8s infinite;}
.secret-console-label{display:none;margin:28px 0 10px;font-family:'Montserrat',sans-serif;font-size:10px;letter-spacing:3px;color:#7FDCEA;text-transform:uppercase;}.secret-console-label.show{display:block;animation:secretCardIn .45s ease both;}
.secret-name-form{display:none;gap:12px;align-items:center;animation:secretCardIn .5s ease forwards;padding:12px;border-radius:20px;background:rgba(8,18,41,.44);border:1px solid rgba(125,211,252,.14);box-shadow:inset 0 1px 0 rgba(255,255,255,.05);}.secret-name-form.show{display:flex;}
#secret-name-input{flex:1;min-width:0;border:1px solid rgba(0,175,202,.25);background:linear-gradient(180deg,rgba(8,18,41,.78),rgba(8,18,41,.54));border-radius:15px;color:white;padding:15px 18px;outline:none;font-size:15px;font-family:'Montserrat',sans-serif;box-shadow:inset 0 0 24px rgba(0,175,202,.05);}
#secret-name-input:focus{border-color:rgba(0,175,202,.75);box-shadow:0 0 26px rgba(0,175,202,.20),inset 0 0 24px rgba(0,175,202,.07);}#secret-name-input::placeholder{color:#64748b;}.secret-unlock-btn,.secret-open-btn{border:none;border-radius:15px;padding:15px 22px;background:linear-gradient(135deg,#2BC0D6,#0A84B8);color:white;font-weight:900;font-family:'Montserrat',sans-serif;cursor:pointer;box-shadow:0 12px 30px rgba(10,132,184,.38);transition:.25s;white-space:nowrap;}.secret-unlock-btn:hover,.secret-open-btn:hover{transform:translateY(-2px);box-shadow:0 18px 40px rgba(10,132,184,.52);}
.secret-error{display:none;margin-top:12px;color:#fb7185;font-size:13px;font-weight:800;letter-spacing:.2px;}.secret-error.show{display:block;}.secret-name-form.shake{animation:secretShake .55s ease;}.secret-name-form.input-error #secret-name-input{border-color:rgba(251,113,133,.88);box-shadow:0 0 26px rgba(251,113,133,.24),inset 0 0 24px rgba(251,113,133,.08);}
.secret-envelope-card{display:none;text-align:center;animation:secretCardIn .7s cubic-bezier(.16,1,.3,1) both;}.secret-envelope-card.show{display:block;}.secret-envelope-icon{width:120px;height:120px;border-radius:34px;margin:0 auto 24px;display:grid;place-items:center;font-size:48px;background:radial-gradient(circle at 50% 25%,rgba(125,211,252,.30),rgba(10,132,184,.16),rgba(8,18,41,.82));border:1px solid rgba(125,211,252,.32);box-shadow:0 0 60px rgba(0,175,202,.25),inset 0 1px 0 rgba(255,255,255,.14);animation:envelopeFloat 3.6s ease-in-out infinite;}.secret-envelope-title{font-family:'Montserrat',sans-serif;font-size:20px;line-height:1.45;color:#fff;text-shadow:0 0 24px rgba(125,211,252,.38);margin-bottom:10px;}.secret-envelope-sub{color:#94a3b8;line-height:1.75;font-size:14px;margin:0 auto 22px;max-width:430px;}
.secret-crush-card{display:none;text-align:center;animation:secretCardIn .7s cubic-bezier(.16,1,.3,1) forwards;}.secret-crush-card.show{display:block;}.secret-crush-label{font-family:'Montserrat',sans-serif;font-size:20px;line-height:1.45;letter-spacing:1.5px;color:white;margin:4px 0 24px;text-shadow:0 0 30px rgba(0,175,202,.58);}.secret-photo-stage{position:relative;width:min(360px,74vw);margin:0 auto 22px;display:grid;place-items:center;}.secret-orbit-ring{position:absolute;border-radius:50%;border:1px dashed rgba(125,211,252,.34);pointer-events:none;}.secret-orbit-ring.r1{width:112%;height:86%;transform:rotate(-12deg);animation:secretSpin 18s linear infinite;}.secret-orbit-ring.r2{width:96%;height:122%;transform:rotate(18deg);border-color:rgba(254,197,12,.25);animation:secretSpinReverse 24s linear infinite;}.secret-orbit-ring.r3{width:124%;height:112%;transform:rotate(44deg);border-color:rgba(168,85,247,.23);animation:secretSpin 31s linear infinite;}.secret-orbit-dot{position:absolute;width:8px;height:8px;border-radius:50%;background:#7FDCEA;top:6%;left:50%;box-shadow:0 0 18px #7FDCEA;animation:secretSpin 8s linear infinite;transform-origin:0 165px;}
.secret-photo-frame{position:relative;z-index:2;width:min(330px,72vw);aspect-ratio:3/4;margin:0 auto;padding:5px;border-radius:32px;background:linear-gradient(135deg,rgba(0,175,202,.94),rgba(254,197,12,.54),rgba(168,85,247,.66));box-shadow:0 0 46px rgba(0,175,202,.32),0 0 100px rgba(168,85,247,.12);overflow:hidden;}.secret-photo-frame::before{content:'';position:absolute;z-index:4;inset:-35% -20%;background:linear-gradient(180deg,transparent 0%,rgba(255,255,255,.05) 38%,rgba(125,211,252,.72) 48%,rgba(255,255,255,.85) 50%,rgba(125,211,252,.48) 54%,transparent 68%);transform:translateY(-120%);pointer-events:none;mix-blend-mode:screen;}.secret-photo-frame::after{content:'';position:absolute;z-index:3;inset:5px;border-radius:27px;background:radial-gradient(circle at 50% 18%,rgba(255,255,255,.20),transparent 36%),linear-gradient(120deg,transparent,rgba(255,255,255,.16),transparent);opacity:0;pointer-events:none;}#secret-crush-card.show .secret-photo-frame{animation:secretFrameReveal .9s cubic-bezier(.16,1,.3,1) both;}#secret-crush-card.show .secret-photo-frame::before{animation:secretScan 1.65s .38s ease-out both;}#secret-crush-card.show .secret-photo-frame::after{animation:secretOverlayIn 1.2s .65s ease both;}#secret-crush-photo{width:100%;height:100%;display:block;object-fit:cover;object-position:top;border-radius:27px;background:#081229;}#secret-crush-card.show #secret-crush-photo{animation:secretPhotoReveal 1.55s ease both;}.secret-confirmed{font-size:12px;letter-spacing:3px;text-transform:uppercase;color:#7FDCEA;opacity:.78;font-weight:900;margin:10px 0 10px;}.secret-photo-note{font-size:14px;line-height:1.7;color:#c7d2fe;opacity:.82;margin:0 auto 12px;text-shadow:0 0 18px rgba(125,211,252,.2);}.secret-naming-note{max-width:530px;margin:14px auto 0;padding:16px 18px;border-radius:20px;background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.12);color:#e5efff;font-size:15px;line-height:1.75;box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 18px 50px rgba(0,0,0,.18);text-align:center;}
.secret-afterglow{position:fixed;inset:0;z-index:99998;pointer-events:none;background:radial-gradient(circle at 50% 45%,rgba(125,211,252,.24),transparent 28%),rgba(8,18,41,.18);animation:afterglowFade 1.8s ease forwards;}.secret-afterglow-star{position:absolute;color:#7FDCEA;text-shadow:0 0 16px rgba(125,211,252,.9);animation:starTwinkle 1.2s ease-in-out infinite;}
@media(max-width:640px){#secret-overlay{padding:18px}.secret-shell{padding:28px 20px;border-radius:26px;max-height:84vh}#secret-message{font-size:15px;line-height:1.82;min-height:260px}.secret-name-form{flex-direction:column}.secret-unlock-btn,#secret-name-input{width:100%}.secret-crush-label{font-size:17px}.secret-close{top:14px;right:14px;padding:0 12px}.secret-close-text{display:none}.secret-photo-stage{width:min(330px,78vw)}.secret-gate{width:min(420px,90vw)}.secret-gate-title{font-size:12px}.secret-envelope-title{font-size:17px}.secret-naming-note{font-size:14px}}

/* AI chat: inline code and rendered math */
.ai-bubble code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em;background:rgba(0,175,202,.12);padding:1px 5px;border-radius:4px}
.ai-bubble .katex{font-size:1.05em}
.ai-bubble .katex-display{margin:.6em 0;overflow-x:auto;overflow-y:hidden;padding:2px 0}

/* AI chat scrolling: keep swipes inside the chat box, and give phones a taller box */
.ai-messages{overscroll-behavior:contain;-webkit-overflow-scrolling:touch;touch-action:pan-y}
@media(max-width:640px){.ai-messages{max-height:62vh;min-height:300px;padding:18px 14px 10px}}