:root{
    --bg-1:#020617;
    --bg-2:#02051a;
    --bg-3:#050b24;

    --glass-bg: rgba(8, 12, 28, 0.46);
    --glass-border: rgba(140, 190, 255, 0.15);
    --glass-highlight: rgba(255,255,255,0.06);

    --blue: rgba(110, 180, 255, 0.95);
    --blue-soft: rgba(110, 180, 255, 0.14);

    --violet: rgba(190, 150, 255, 0.95);
    --violet-soft: rgba(190, 150, 255, 0.14);
}

*{ box-sizing:border-box; }
html,body{ height:100%; }

body{
    font-family:"Vazirmatn", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    background:
            radial-gradient(1200px 700px at 70% 12%, rgba(90, 165, 255, 0.16), transparent 60%),
            radial-gradient(1000px 800px at 18% 85%, rgba(60, 135, 255, 0.14), transparent 62%),
            radial-gradient(700px 500px at 52% 58%, rgba(150, 210, 255, 0.06), transparent 60%),
            radial-gradient(650px 420px at 50% 115%, rgba(0, 90, 255, 0.10), transparent 60%),
            linear-gradient(180deg, var(--bg-1) 0%, var(--bg-2) 48%, var(--bg-3) 100%);
}

#rainCanvas{
    position:fixed;
    inset:0;
    width:100%;
    height:100%;
    z-index:0;
}

.mood-overlay{
    position:fixed;
    inset:0;
    z-index:1;
    pointer-events:none;
    background:
            radial-gradient(900px 520px at 50% 16%, rgba(150, 210, 255, 0.12), transparent 62%),
            radial-gradient(1200px 900px at 70% 65%, rgba(70, 140, 255, 0.10), transparent 65%),
            radial-gradient(900px 750px at 50% 120%, rgba(0,0,0,0.60), transparent 62%),
            linear-gradient(180deg, rgba(0,0,0,0.50), rgba(0,0,0,0.16));
    backdrop-filter: blur(1px);
}

.glass{
    position: relative;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 26px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow:
            0 18px 55px rgba(0,0,0,0.40),
            inset 0 1px 0 var(--glass-highlight);
}

/* soft inner glow */
.glass::before{
    content:"";
    position:absolute;
    inset:-1px;
    border-radius:inherit;
    pointer-events:none;
    background: radial-gradient(700px 220px at 50% 0%, rgba(120,180,255,0.10), transparent 60%);
    opacity:.55;
}

.glass-input{
    background: rgba(0, 0, 0, 0.22);
    border: 1px solid rgba(255,255,255,0.10);
    border-radius: 18px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    outline: none;
    transition: border-color 200ms ease, background 200ms ease, box-shadow 220ms ease;
    color: rgba(255,255,255,0.92);
}
.glass-input:focus{
    border-color: rgba(110, 180, 255, 0.35);
    background: rgba(0,0,0,0.26);
    box-shadow: 0 0 0 3px rgba(110,180,255,0.10);
}

.tab-btn{
    padding:10px 14px;
    border-radius:16px;
    border: 1px solid rgba(140,190,255,0.14);
    background: rgba(110,180,255,0.06);
    color: rgba(235,245,255,0.88);
    transition: background 220ms ease, transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}
.tab-btn:hover{ background: rgba(110,180,255,0.10); }
.tab-btn:active{ transform: translateY(1px); }
.tab-active{
    background: rgba(110,180,255,0.16);
    border-color: rgba(110,180,255,0.28);
    box-shadow: 0 10px 30px rgba(110,180,255,0.08);
}

.status-pill{
    font-size:12px;
    color: rgba(255,255,255,0.82);
    padding:6px 10px;
    border-radius:999px;
    border:1px solid rgba(255,255,255,0.10);
    background: rgba(255,255,255,0.06);
}

.chip{
    padding:8px 12px;
    border-radius: 999px;
    border:1px solid rgba(255,255,255,0.10);
    background: rgba(255,255,255,0.06);
    color: rgba(255,255,255,0.86);
    transition: background 200ms ease, border-color 200ms ease, box-shadow 220ms ease;
}
.chip:hover{ background: rgba(255,255,255,0.10); }
.chip-active{
    border-color: rgba(110,180,255,0.34);
    background: rgba(110,180,255,0.14);
    box-shadow: 0 10px 30px rgba(110,180,255,0.06);
}

.message-card{
    position: relative;
    overflow:hidden;
    border-radius: 20px;
    padding: 14px 14px 12px;
    border: 1px solid rgba(140,190,255,0.12);
    background: rgba(6, 10, 24, 0.32);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow:
            0 16px 45px rgba(0,0,0,0.33),
            inset 0 1px 0 rgba(255,255,255,0.04);
    transform: translateY(10px);
    opacity: 0;
    transition: opacity 700ms ease, transform 700ms ease;
}

/* watery sheen */
.message-card::before{
    content:"";
    position:absolute;
    inset:-40% -40%;
    background: radial-gradient(circle at 30% 20%, rgba(170,220,255,0.08), transparent 42%);
    transform: rotate(-12deg);
    pointer-events:none;
    opacity:.8;
}

.message-card.show{
    opacity:1;
    transform: translateY(0);
}

.message-text{
    color: rgba(255,255,255,0.92);
    line-height: 2.0;
    white-space: pre-wrap;
    word-break: break-word;
    font-size: 15px;
}

.message-meta{
    margin-top: 10px;
    font-size: 11px;
    color: rgba(255,255,255,0.58);
    display:flex;
    align-items:center;
    justify-content: space-between;
    gap: 10px;
}

.sender-pill{
    font-size: 11px;
    padding: 5px 9px;
    border-radius: 999px;
    border: 1px solid rgba(255,255,255,0.10);
    background: rgba(255,255,255,0.06);
}

/* آقا / بانو تم رنگی کارت */
.card-gent{
    border-color: rgba(110,180,255,0.18);
    box-shadow: 0 16px 45px rgba(0,0,0,0.33), 0 0 0 1px rgba(110,180,255,0.05) inset;
}
.card-lady{
    border-color: rgba(190,150,255,0.18);
    box-shadow: 0 16px 45px rgba(0,0,0,0.33), 0 0 0 1px rgba(190,150,255,0.05) inset;
}
.pill-gent{ border-color: rgba(110,180,255,0.22); background: rgba(110,180,255,0.10); }
.pill-lady{ border-color: rgba(190,150,255,0.22); background: rgba(190,150,255,0.10); }

.dissolve-layer{
    position:fixed;
    inset:0;
    z-index:30;
    pointer-events:none;
}

.dissolve-word{
    position:absolute;
    direction: rtl;
    unicode-bidi: plaintext;
    color: rgba(255,255,255,0.88);
    text-shadow: 0 18px 40px rgba(0,0,0,0.55);
    filter: drop-shadow(0 10px 30px rgba(0,0,0,0.40));
    font-size: 18px;
    line-height: 2;
    max-width: min(520px, 86vw);
    padding: 12px 14px;
    border-radius: 16px;
    background: rgba(0,0,0,0.20);
    border: 1px solid rgba(255,255,255,0.10);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.dissolve-char{
    display:inline-block;
    will-change: transform, opacity, filter;
}

@media (prefers-reduced-motion: reduce){
    .message-card, .tab-btn{
        transition:none !important;
    }
}