:root {
    --bar-w: 300px;
    --bar-bg: rgba(0, 0, 0, 0.65);
    --bar-border: rgba(255,255,255,0.12);
    --txt: #e8e8ef;
    --muted: #a9adc1;
    --accent: #7aa2ff;
    --tab-bg: #0f172a;         /* slate-900 */
    --tab-fg: #ffffff;
    --tab-bg-hover: #1e293b;   /* slate-800 */
    --tab-shadow: 0 4px 16px rgba(0,0,0,.25);
    --tab-radius: 12px;
    }

body {
    background-color: var(--bar-bg);
    
    min-height: 100vh;
    height: 100%;
    margin: 0;
    padding: 0px 0px;
    display: flex;
    flex-direction: column;
    overflow: visible;

    font-family: 'Montserrat', sans-serif;
    font-size: 18pt;
    font-weight: 700;
    letter-spacing: 0px;
}

main {
    background-color: var(--bar-bg);
    flex: 1;
    overflow: hidden;
    margin: 0;
    position: relative;
    z-index: 1;
}

canvas {
      position: fixed; /* stay fixed when scrolling */
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: -2; /* puts it behind all other content */
      background: #000; /* fallback background color */
}

.hero {
    background: linear-gradient(135deg, #afc3df, #d6d5ff);
    color: #000000;
    text-align: center;
    padding: 40px 20px;
    margin: 0;
}

.hero h2 {
    margin: 0;
    font-size: 2.5rem;
    font-weight: 500;
}

/* App cards grid */
.app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    max-width: 800px;
    padding: 20px 20px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    
}

/* App cards */
.app-card {
    background: rgba(172, 176, 185, 0.7); /* same color, 50% opacity */
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    text-decoration: none;
    color: #1a1a1a;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
    transition: transform 0.2s ease, box-shadow 0.2s ease;

    /* Maintain a 2:1 width-to-height ratio */
    aspect-ratio: 2 / 1;

    /* Optional: Prevent content overflow */
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

    .app-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    }

    .app-card h3 {
        margin: 0;
        font-size: 1.25rem;
    }

/* Background Click effect graphics */
    @keyframes fadeOut {
        from {
            opacity: 0.2;
        }
        to {
            opacity: 0;
        }
    }

    .segment {
        position: absolute;
        height: 4px;
        width: 0;
        background-color: #ffffff;
        transform-origin: 0 50%;
        pointer-events: none;
        transition: width 0.3s ease;
        animation: fadeOut 3.5s forwards;
        z-index: 0;
    }

    .circle {
        position: absolute;
        width: 6px;
        height: 6px;
        background-color: #ffffff;
        border-radius: 50%;
        pointer-events: none;
        animation: fadeOut 3.5s forwards;
        z-index: 0;
    }


/* Fluid Background effect Settings Panel*/
    .panel {
        background-color: var(--bar-bg);
        border: 3px solid var(--bar-border);
        backdrop-filter: blur(8px) saturate(1.1);
        -webkit-backdrop-filter: blur(8px) saturate(1.1);
        box-shadow: 0 0 0 1px rgba(255,255,255,0.04) inset;
        display: flex; flex-direction: column; gap: 12px; padding: 18px 16px 70px;
        overflow: visible;
    }
    .hdr {
        color: var(--txt);
        font-size: 20px;
    }
        .badge {
        background: rgba(122,162,255,0.14);
        color: var(--accent);
        padding: 3px 8px;
        border-radius: 999px;
        border: 1px solid rgba(122,162,255,0.25);
        font-size: 11px;
    }

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

    .row {
        display:flex;
        flex-direction:column;
        gap:6px;
        padding:8px 0;
    }

    .row label {
        font-size: 12px;
        color: var(--muted);
        display:flex;
        justify-content:space-between;
    }

    .row input[type="range"] {
        width: 100%;
    }

    .num { color: var(--txt);
        font-variant-numeric: tabular-nums;
    }

    .btns {
        display:grid;
        grid-template-columns: 1fr 1fr;
        gap:10px;
        margin-top:6px;
    }

    button { 
        background: rgba(255,255,255,0.06);
        color: var(--txt);
        border: 1px solid var(--bar-border);
        padding: 10px 12px;
        border-radius: 12px;
        font-weight: 600;
        letter-spacing:.2px;
        cursor: pointer;
        transition: transform .06s ease, background .2s ease, box-shadow .2s ease; 
    }

    button:hover {
        background: rgba(255,255,255,0.12);
        box-shadow: 0 6px 16px rgba(0,0,0,0.25);
    }

    button:active {
        transform: translateY(1px) scale(0.99);
    }



/* --- Modal Styles for Settings --- */
.modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
.modal.open { display: flex; }

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease;
}
.modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-dialog {
  background: var(--bar-bg);
  border: 1px solid var(--bar-border);
  box-shadow: 0 10px 35px rgba(0,0,0,0.4);
  border-radius: 16px;
  width: min(720px, 92vw);
  max-height: 88vh;
  overflow: auto;
  padding: 16px;
  backdrop-filter: blur(8px) saturate(1.1);
  -webkit-backdrop-filter: blur(8px) saturate(1.1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--txt);
  margin-bottom: 8px;
}

.modal-body {
  color: var(--txt);
}

.modal-close {
  background: rgba(255,255,255,0.06);
  color: var(--txt);
  border: 1px solid var(--bar-border);
  padding: 8px 12px;
  border-radius: 12px;
  font-weight: 700;
  cursor: pointer;
}

.modal-close:hover {
  background: rgba(255,255,255,0.12);
}

/* Keep existing control styles working inside the modal */
.modal .hdr { margin-bottom: 8px; }


.panel-toggle {
  position: fixed;
  top: 50%;
  right: 0;
  z-index: 9999;

  background: var(--tab-bg);
  color: var(--tab-fg);
  border: none;
  border-top-left-radius: var(--tab-radius);
  border-bottom-left-radius: var(--tab-radius);
  box-shadow: var(--tab-shadow);

  padding: .75rem 1rem;
  min-height: 3rem;
  font: 600 0.95rem/1 system-ui, sans-serif;
  letter-spacing: .2px;

  /* Vertical tab look */
  writing-mode: vertical-rl;
  text-orientation: mixed;

  /* Fixed position, no motion */
  transform: translateY(-50%);
  translate: 6px -50%; /* stays “peeking” from edge */
  transform-origin: center right;

  /* Disable any translation on interactions */
  transition: background .2s ease, filter .1s ease;
}

.panel-toggle:hover,
.panel-toggle:focus-visible {
  background: var(--tab-bg-hover);
  filter: brightness(1.05);
  outline: none;
}

/* Explicitly prevent any positional change on active */
.panel-toggle:active {
  translate: 6px -50%;
  transform: translateY(-50%);
  filter: brightness(1.1);
}

/* Respect reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  .panel-toggle {
    transition: none;
  }
}

@media (max-width: 480px) {
  .panel-toggle {
    top: 55%;
    min-height: 2.75rem;
    padding: .5rem .75rem;
  }
}