@import url('https://fonts.googleapis.com/css2?family=DM+Mono:ital,wght@0,300;0,400;0,500;1,300;1,400;1,500&family=DM+Sans:ital,opsz,wght@0,9..40,100..1000;1,9..40,100..1000&family=DM+Serif+Text:ital@0;1&family=Lobster&family=Merriweather:ital,opsz,wght@0,18..144,300..900;1,18..144,300..900&family=Radley:ital@0;1&display=swap');

:root {
    --bg: #0a051f;
    --bg-end: #050210;
    --panel: #1a0f33;
    --muted: #b0ffff;
    --accent: #ffddcc;
    --accent-2: #ffaa66;
    --line: rgba(255, 85, 0, 0.2);
    --line-dashed: rgba(255, 255, 255, 0.15);
    --color-root: #ff5500;
    --color-family: #00b3b3;
    --color-subgenre: #b0ffff;
    --color-artist: #00ffff;

    --nav-width: 240px;
    --glass: rgba(255, 255, 255, 0.05);
    --glass-2: rgba(255, 255, 255, 0.02);
    --radius: 8px;

    --nav-width: 40px;
    /* collapsed width */
    --nav-width-exp: 320px;
    /* expanded width */

    font-family: "DM Sans", sans-serif;
}


/* Layout */
html,
body {
    height: 100%;
    margin: 0;
    background: linear-gradient(180deg, var(--bg), #04121a);
    color: #eaf3fb;
}

.listnodes {
    list-style-type: none;
    font-family: "DM Sans", sans-serif;
    font-weight: 500;
    font-size: 17px;
    padding: 8px 12px;
    /* margin-bottom: 20px; */
    border-radius: var(--radius);
    border: none;
    background: var(--panel);
    color: var(--muted);
    -ms-overflow-style: none;
    scrollbar-width: none;
    height: 70px;
    overflow: auto;
}

h2 {
    margin-block: 0px;
}

select {
    padding: 8px 12px;
    /* margin-bottom: 20px; */
    border-radius: var(--radius);
    border: none;
    background: var(--panel);
    color: var(--muted);
    -ms-overflow-style: none;
    /* IE and Edge */
    scrollbar-width: none;
    /* Firefox */
    /* font-size: 16px; */
}

select::-webkit-scrollbar {
    display: none;
    /* Chrome, Safari, Opera */
}

.panel {
    width: 80%;
    max-width: 500px;
    padding: 20px;
    background: var(--panel);
    border-radius: var(--radius);
    text-align: center;
}

.app {
    display: flex;
    height: 100vh;
    width: 100vw;
}

/* Left vertical nav (minimalistic, like chat UI) */
nav.side {
    width: var(--nav-width-exp);
    background: linear-gradient(180deg, var(--bg), black);
    border-right: 1px solid rgba(255, 255, 255, 0.03);
    padding: 18px 14px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    gap: 14px;
    justify-content: space-between;
    z-index: 5;
    overflow: auto;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

nav.side::-webkit-scrollbar {
    display: none;
}



.brand {
    padding-block: 10px;
    display: flex;
    gap: 10px;
    align-items: center;
    justify-content: center;
}

.logo {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    box-shadow: 0 6px 18px rgba(106, 225, 255, 0.08), inset 0 -6px 16px rgba(181, 140, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #022;
    font-size: 18px;
}

.brand h1 {
    font-size: 14px;
    margin: 0;
    display: flex;
    font-size: 30px;
    padding-bottom: 20px;
    justify-content: center;
    overflow: hidden;
}

.brand p {
    margin: 0;
    color: var(--muted);
    font-size: 12px
}

.nav-list {
    display: flex;
    flex-direction: column;
    gap: 8px
}

.nav-item {
    display: grid;
    align-items: center;
    gap: 12px;
    padding: 8px;
    border-radius: 8px;
    cursor: pointer;
    color: var(--muted);
    font-size: 13px;
    text-decoration: none;
}

.nav-item:hover {
    background: var(--glass);
    color: var(--accent);
    box-shadow: inset 0 0 0 1px rgba(106, 225, 255, 0.02);
}

.nav-item.active {
    background: linear-gradient(90deg, rgba(106, 225, 255, 0.06), rgba(181, 140, 255, 0.03));
    color: var(--accent);
}

.nav-icon {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px
}

.small {
    font-size: 12px;
    color: var(--muted)
}

/* Controls */
.controls {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 6px
}

.btn {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.04);
    padding: 8px;
    border-radius: 8px;
    color: var(--muted);
    cursor: pointer;
    font-size: 13px;
    text-align: center;
}

.btn:hover {
    border-color: rgba(106, 225, 255, 0.12);
    color: var(--accent)
}

/* Info area at bottom */
.info {
    margin-top: auto;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.01), transparent);
    padding: 12px;
    border-radius: 10px;
    font-size: 13px;
    color: var(--muted);
    border: 1px solid rgba(255, 255, 255, 0.02);
}

.info h3 {
    margin: 0 0 6px 0;
    font-size: 13px;
    color: #fff
}

.info .meta {
    font-size: 12px;
    color: var(--muted)
}

/* Main canvas area */
main.canvas-wrap {
    flex: 1;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: stretch;
    justify-content: center;
}

canvas#galaxy {
    display: block;
    width: 100%;
    height: 100%;
    cursor: grab;
}

canvas#galaxy:active {
    cursor: grabbing
}

/* Tooltip */
.tooltip {
    position: absolute;
    pointer-events: none;
    background: rgba(2, 8, 12, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.06);
    padding: 8px 10px;
    border-radius: 8px;
    font-size: 13px;
    color: #eaf3fb;
    width: 200px;
    min-width: 140px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.6);
    transform-origin: left top;
    transition: transform .08s ease, opacity .12s;
    opacity: 0;
}

.tooltip.visible {
    opacity: 1
}

/* Node label small */
.node-label {
    position: absolute;
    pointer-events: none;
    font-size: 12px;
    color: var(--muted);
    white-space: nowrap;
    transform: translate(-50%, -120%);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.6);
}

/* Splash screen sliding up */
#splash {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at top, var(--bg), transparent 80%),
        radial-gradient(circle at bottom, var(--bg), transparent 80%),
        black;
    /* base color for the middle */

    /* deep space background */
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    z-index: 10;
    filter: blur(0px);
    opacity: 1;
    transition: filter 2s cubic-bezier(0.4, 0, 0.2, 1.5),
        opacity 2s cubic-bezier(0.4, 0, 0.2, 1.5);
}

/* When hidden, slide up out of view */
#splash.hidden {

    filter: blur(8px);
    opacity: 0;
    pointer-events: none;
}

.progress-container {
    position: relative;
    /* Crucial for positioning the inner bar */
    display: flex;
    /* Helps center the text */
    justify-content: center;
    align-items: center;

    width: 100%;
    height: 24px;
    /* Slightly taller for better text fit */
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    overflow: hidden;

    font-size: 14px;
    font-weight: bold;
}

/* This is the gray, background text */
.progress-container>span {
    color: rgba(255, 255, 255, 0.4);
}

.progress-bar {
    /* This bar sits on top and reveals the colored text as it grows */
    position: absolute;
    top: 0;
    left: 0;

    display: flex;
    justify-content: center;
    align-items: center;

    width: 0%;
    height: 100%;
    background: var(--accent);
    /* border-radius: 12px; */
    overflow: hidden;

    /* This transition animates the width */
    transition: width 4s cubic-bezier(0.895, 0.03, 0.83, 0.22);
}

/* This is the bright, foreground text inside the progress bar */
.progress-bar>span {
    color: transparent;
    /* A dark color for contrast against the accent background */
    min-width: max-content;
    /* Prevents the text from wrapping */
}

.burger {
    display: none;
}

/* Responsive: collapse nav on small screens */
/* Small screens */
@media (max-width: 1000px) {

    nav.side {
        width: var(--nav-width);
    }

    /* Hide text/details */
    .brand h1,
    .brand p,
    .small,
    .btn,
    #paletteSelector,
    .nav-icon,
    .nav-item,
    .info,
    .nav-item>div:not(.nav-icon) {
        display: none;
    }

    /* Burger */
    .burger {
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 22px;
        cursor: pointer;
        width: 100%;
        height: 50px;
        position: relative;
        z-index: 20;
    }

    /* Expanded sidebar overlay */
    nav.side.open {
        width: var(--nav-width-exp);
        position: absolute;
        top: 0;
        left: 0;
        height: 100%;
        overflow: auto;
        /* background: var(--bg); */
        transition: width 0.3s ease;
        box-shadow: 2px 0 8px rgba(0, 0, 0, 0.3);
    }

    nav.side.open .brand h1 {
        display: grid;
        align-items: center;
    }

    nav.side.open .brand p,
    nav.side.open .small,
    nav.side.open .info,
    nav.side.open .btn,
    nav.side.open #paletteSelector,
    nav.side.open .nav-item>div:not(.nav-icon) {
        display: block;
    }

    nav.side.open .nav-item {
        display: grid;
    }

    nav.side.open .nav-item {
        justify-content: flex-start;
        padding: 8px;
    }

    .burger.hidden {
        display: none;
    }
}