:root{
    --accent:#ff79c6;
    --glass-bg: rgba(18,20,28,0.82);
    --glass-border: rgba(255,255,255,0.82);
    --text-main: #f0f3f6;
    --text-muted: #8b949e;
    --header-bg: rgba(255,255,255,0.06);

}
*{
    box-sizing:border-box; margin:0; padding: 0;user-select:none; -webkit-tap-highlight-color: transparent;
}
body{
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    height:100vh;
    height:100dvh;
    overflow:hidden;
    background: radial-gradient(circle at center, #1b1e2e 0%,#0a0b10 100%);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color:var(--text-main);
    position: relative;
    touch-action: manipulation;
    transition: background-image 0.5s ease-in-out;

}
#topbar{
    height:32px;
    background: rgba(10,12,18,0.78);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
    display:flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 14px;
    font-size:0.8rem;
    font-weight: 500;
    z-index: 10000;
    
}
.top-left, .top-right{display:flex; align-items:center;gap:12px;}
.os-logo{
    font-weight: 700;
    color:#fff;
}
.search-pill{
    background:rgba(255,255,255,0.08);
    border:1px solid var(--glass-border);
    border-radius:6px;
    padding:3px 14px;
    font-size:0.75rem;
    color:var(--text-muted);

}
#wallpaper-branding{
    position: absolute;
    top:34%;
    left:50%;
    transform:translate(-50%,-50%);
    font-size:clamp(2.8rem,9vw,4.5rem);
    font-weight: 800;
    letter-spacing: -1px;
    color:rgba(255,255,255,0.15);
    text-shadow:0 4px 18px rgba(0,0,0,0.6);
    pointer-events:none;
}
#apof-caption{
    position:absolute;
    top:44%;
    left:50%;
    transform: translateX(-50%);
    font-size:clamp(0.7rem,2.5vw,0.8rem);
    color:rgba(255,255,255,0.45);
    pointer-events: none;
    text-align:center;
    width:90%;
    max-width: 480px;
}
.window{
    position:absolute;
    background:var(--glass-bg);
    backdrop-filter: blur(28px);
    -webkit-backdrop-filter: blur(28px);
    border: 1px solid var(--glass-bg);
    border-radius: 12px;
    box-shadow: 0 20px 45px rgba(0,0,0,0.65);
    overflow:hidden;
    display: flex;
    flex-direction: column;
    min-width: 270px;
    transition: transform 0.22s cubic-bezier(0.16,1,0.3,1),opacity 0.2s ease, width 0.2s ease, height 0.2s ease;

}
.window.minimized{
    transform: scale(0.6) translateY(260px);
    opacity: 0;
    pointer-events: none;

}
.window.fullscreen{
    top: 32px !important;
    left: 0 !important;
    width: 100vw !important;
    height:calc(100dvh - 32px - 72px) !important;
    border-radius: 0 !important;
}
.window-header{
    background: var(--header-bg);
    padding: 10px 14px;
    cursor: grab;
    display: flex;
    align-items: center;
    position:relative;
    border-bottom: 1px solid var(--glass-border);
    touch-action: none;
}
.window-header:active{
    cursor: grabbing;
}
.traffic-lights{
    display: flex;
    gap:8px;
    z-index:2;
}
.dot{
    width:14px;
    height:14px;
    border-radius: 50%;
    cursor: pointer;
    display:inline-block;

}
.dot-close{ background:#ff5f56;border:1px solid #e0443e;}
.dot-min{background:#ffbd2e;border: 1px solid #dea123;}
.dot-max{background: #27c93f;border:1px solid #1aab29;}
.window-title{
    position:absolute;
    left:0;
    right:0;
    text-align: center;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    pointer-events: none;
}
.window-body{
    padding:14px;
    font-size: 0.85rem;
    line-height: 1.5;
    user-select: text;
    overflow-y: auto;
    flex-grow: 1;
}
.terminal-container{
    background:#090a0f;
    border-radius: 6px;
    padding:10px 12px;
    font-family: 'SF Mono',Consolas,Monaco,monospace;
    font-size:0.82 rem;
    color:#7ee787;
    min-height: 180px;
    height:100%;
    display:flex;
    flex-direction: column;
    overflow-y: auto;
}
.terminal-history{flex-grow: 1;margin-bottom: 6px;}
.terminal-history p{margin-bottom: 4px;word-break: break-word;}
.terminal-input-row{display:flex;align-items: center;gap:6px;}

.terminal-prompt{
    color:var(--accent);
    font-weight: 600;
}
#term-input{
    background: transparent;
    border: none;
    outline: none;
    color:#fff;
    font-family: inherit;
    font-size:0.82rem;
    width:100%;
}
.notes-layout{
    display:flex;
    flex-direction: column;
    height:100%;
    gap:10px;

}
#notes-textarea{
    width:100%;
    height:90px;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    color:#fff;
    padding:8px;
    font-family:inherit;
    font-size: 0.85rem;
    resize: vertical;
    outline: none;
}
.notes-toolbar{
    display:flex;
    justify-content: space-between;
    align-items: center;
}
.btn-action{
    background:var(--accent);
    color: #111;
    font-weight: 600;
    border:none;
    padding: 6px 12px;
    border-radius: 6px;
    cursor:pointer;
    font-size: 0.8rem;


}
.saved-notes-list{
    max-height: 120px;
    overflow-y: auto;
    display:flex;
    flex-direction: column;
    gap:6px;
}
.saved-notes-item{
    background:rgba(255,255,255,0.06);
    padding: 6px 10px;
    border: 6px;
    display:flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.78;
}
.note-del{
    color:#ff5f56;
    font-weight: bold;
    cursor:pointer;
    padding:0 4px;
}
.contact-card{
    text-align: center;

}
.avatar{
    width:60px;
    height:60px;
    border-radius: 50%;
    background:linear-gradient(135deg,var(--accent) 0%,#4facfe);
    display:inline-flex;
    align-items: center;
    justify-content: center;
    font-size:1.6rem;
    font-weight: bold;
    color:#fff;
    margin-bottom:8px;

}
.contact-card h2{font-size: 1.1rem;}
.contact-card p{color:var(--text-muted);font-size: 0.8rem;margin-bottom: 12px;}
.contact-links{display:flex;flex-direction: column;gap:6px;text-align: left;}
.contact-link-item{
    background:rgba(255,255,255,0.05);
    border: 1px solid var(--glass-bg);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.78rem;
    display: flex;
    justify-content: space-between;

}
.calc-grid{display:grid; grid-template-columns: repeat(4,1fr);gap:6px;}
#calc-screen{
    grid-column: span 4;
    background: #090a0f;
    border:1px solid var(--glass-border);
    border-radius:6px;
    height:40px;
    display:flex;
    align-items: center;
    justify-content: flex-end;
    padding: 0 10px;
    font-size: 1.2rem;
    font-family: monospace;
    color:#fff;
    margin-bottom: 4px;
}
.calc-btn{
    background:rgba(255,255,255,0.08);
    border: 1px solid var(--glass-border);
    color:#fff;
    font-size:0.95rem;
    padding: 9px 0;
    border-radius: 6px;
    cursor:pointer;
}
.calc-btn:hover{
    background: rgba(255,255,255,0.18);

}
.calc-btn.op{
    background:rgba(255,121,198,0.2); color:var(--accent);
}
.calc-btn.action{
    background:rgba(255,95,86,0.2); color:#ff5f56;
}

.color-swatches{
    display:flex;
    gap:8px;
    margin-top: 6px;
}
.swatch{
    width:22px;
    height:22px;
    border-radius: 50%;
    cursor:pointer;
    border: 2px solid transparent;
}
.swatch.active{
    border-color: #fff;
}
#dock{
    position:fixed;
    bottom:12px;
    left:50%;
    transform:translateX(-50%);
    background:rgba(20,22,30,0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 18px;
    padding:6px 10px;
    display:flex;
    gap:10px;
    z-index: 10000;
    max-width: 97vw;

}
.dock-icon{
    width:42px;
    height:42px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor:pointer;
    position:relative;
    transition: transform 0.2s cubic-bezier(0.34,1.56,0.64,1);
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    flex-shrink: 0;
}
.dock-icon:hover{
    transform:translateY(-6px) scale(1.08);
}
.dock-icon.active::after{
    content: '';
    position:absolute;
    bottom: -3px;
    width:4px;
    height:4px;
    background:#fff;
    border-radius: 50%;
}
.icon-contact{
    background: linear-gradient(135deg,#ff758c,#ff7eb3);
    color:#fff;
}
.icon-term { background: linear-gradient(135deg, #1e2029, #383a45); color: #7ee787; font-family: monospace; font-weight: bold; }
.icon-notes { background: linear-gradient(135deg, #f6d365, #fda085); color: #fff; }
.icon-calc { background: linear-gradient(135deg, #a18cd1, #fbc2eb); color: #fff; }
.icon-guide { background: linear-gradient(135deg, #4facfe, #00f2fe); color: #fff; }
.icon-settings { background: linear-gradient(135deg, #43e97b, #38f9d7); color: #111;}
@media (max-width:640px){
    .search-pill{
        display:none;
    }
    #dock{
        bottom:8px;
        padding:5px 8px;
        gap:8px;
    }
    .dock-icon{
        width:36px;
        height:36px;
        font-size:1rem;

    }
    .window {
        width: calc(100vw - 16px) !important;
        left: 8px !important;
        top: 40px !important;
        max-height: calc(100dvh - 105px) !important;
    }
    .window.fullscreen {
        top: 32px !important;
        left: 0 !important;
        width: 100vw !important;
        height: calc(100dvh - 32px - 60px) !important;
    }
}