html,
body {
    height: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #0b0e1a;
    font-family: sans-serif;
}

:root {
    --mx: 0;
    --my: 0;
}

.gradient-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    background: linear-gradient(45deg, #0b0e1a, #150b23, #1c0635, #340b39);
    background-size: 400% 400%;
    animation: gradientShift 20s ease infinite;
    opacity: 0.85;
    transform: translate3d(calc(var(--mx) * -10px), calc(var(--my) * -10px), 0);
}

#particles-js {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
    transform: translate3d(calc(var(--mx) * -6px), calc(var(--my) * -6px), 0);
}

#particles-js > canvas {
    position: absolute;
    inset: 0;
}

.depth-mask {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 3;
    pointer-events: none;
    background: radial-gradient(circle at center, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.4) 40%, rgba(0, 0, 0, 0) 80%);
    transform: translate3d(calc(var(--mx) * -3px), calc(var(--my) * -3px), 0);
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

#notes {
    position: fixed;
    inset: 0;
    z-index: 4;
    perspective: 800px;
}

.note {
    position: absolute;
    width: 340px;
    min-height: 64px;
    transform: translate(-50%, -50%);
    padding: 10px 14px;
    border-radius: 14px;
    color: #ffffff;
    background: linear-gradient(180deg, rgba(129, 94, 255, 0.25), rgba(82, 46, 210, 0.28));
    border: 1px solid rgba(140, 88, 255, 0.18);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
    user-select: none;
    cursor: grab;
    backdrop-filter: blur(3px);
    display: flex;
    flex-direction: column;
    gap: 6px;
    overflow: hidden;
    isolation: isolate;
    transform-style: preserve-3d;
    transition: transform 160ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.note.locked { cursor: default; }

.note::before {
    --ring-size: 2px;
    --angle: 0deg;
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: var(--ring-size);
    background: conic-gradient(from var(--angle), rgba(192,132,252,0.45) 0%, rgba(124,58,237,0.45) 25%, rgba(76,29,149,0.45) 50%, rgba(124,58,237,0.45) 75%, rgba(192,132,252,0.45) 100%);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    filter: blur(2.5px);
    opacity: 0.22;
    mix-blend-mode: screen;
    pointer-events: none;
    animation: shimmerSpin 12s linear infinite;
}

.note::after {
    content: "";
    position: absolute;
    inset: -20px;
    border-radius: 24px;
    opacity: 0;
    pointer-events: none;
    background: radial-gradient(80% 80% at var(--hx, 50%) var(--hy, 50%), rgba(150, 100, 255, 0.12) 0%, rgba(150, 100, 255, 0.06) 35%, rgba(150, 100, 255, 0) 70%);
    filter: blur(14px);
    mix-blend-mode: screen;
    transform: translateZ(0) scale(0.98);
    transition: opacity 300ms ease, transform 300ms ease;
}

.note.is-hot::after {
    opacity: 1;
    transform: translateZ(0) scale(1);
}

.note.is-draggable {
    border-color: rgba(210, 185, 255, 0.6);
    background: linear-gradient(180deg, rgba(158, 120, 255, 0.35), rgba(96, 60, 225, 0.38));
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.5), 0 0 26px rgba(160, 110, 255, 0.28), 0 0 54px rgba(160, 110, 255, 0.18), inset 0 0 8px rgba(255, 255, 255, 0.12);
}

.note.is-draggable::before {
    opacity: 0.36;
    filter: blur(3px);
    animation-duration: 8s;
}

.note.is-draggable::after {
    opacity: 0.55;
    background: radial-gradient(100% 100% at var(--hx, 50%) var(--hy, 50%), rgba(170, 120, 255, 0.28) 0%, rgba(170, 120, 255, 0.14) 40%, rgba(170, 120, 255, 0) 72%);
    filter: blur(20px);
    animation: haloPulse 1600ms ease-in-out infinite;
    transform: translateZ(0) scale(0.99);
}

.note.dragging {
    cursor: grabbing;
    transform: translate(-50%, -50%) scale(1.02);
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.5), 0 0 30px rgba(160, 110, 255, 0.32), inset 0 0 10px rgba(255, 255, 255, 0.12);
    border-color: rgba(220, 200, 255, 0.7);
}

.note.dragging::after {
    opacity: 0.9;
    animation-play-state: paused;
    transform: translateZ(0) scale(1);
}

@keyframes haloPulse {
    0% { opacity: 0.38; transform: translateZ(0) scale(0.985); }
    50% { opacity: 0.62; transform: translateZ(0) scale(1.02); }
    100% { opacity: 0.38; transform: translateZ(0) scale(0.985); }
}

@property --angle {
    syntax: "<angle>";
    inherits: false;
    initial-value: 0deg;
}

@keyframes shimmerSpin {
    to { --angle: 360deg; }
}

.note .msg {
    order: 1;
    margin: 0;
    font-size: 14px;
    line-height: 1.25;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.note .name {
    order: 2;
    margin-top: 2px;
    text-align: left;
    font-size: 12.5px;
    opacity: 0.85;
}

.note .name::before { content: "— "; opacity: 0.85; }

@media (prefers-reduced-motion: reduce) {
    .note::before { animation: none; }
}

#fab {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 5;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.15);
    background: linear-gradient(145deg, rgba(150,100,255,0.28), rgba(80,40,200,0.28));
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    color: #fff;
    font-size: 34px;
    font-weight: 500;
    display: grid;
    place-items: center;
    cursor: pointer;
    transition: transform 180ms ease, box-shadow 250ms ease;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.45), 0 0 16px rgba(150, 100, 255, 0.18), inset 0 0 8px rgba(255, 255, 255, 0.12);
}

#fab:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.5), 0 0 20px rgba(150, 100, 255, 0.26), inset 0 0 10px rgba(255, 255, 255, 0.15);
}

#fab:active {
    transform: scale(0.96);
}

dialog#composer {
    border: 1px solid rgba(150, 100, 255, 0.25);
    border-radius: 18px;
    padding: 20px;
    width: min(480px, 92vw);
    background: linear-gradient(135deg, rgba(18, 16, 28, 0.65), rgba(24, 18, 40, 0.65));
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: #eef1f5;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 30px rgba(150, 100, 255, 0.18);
    animation: modalFadeIn 300ms ease forwards;
}

dialog#composer.is-closing {
    animation: modalFadeOut 220ms ease forwards;
}

@keyframes modalFadeIn {
    from { opacity: 0; transform: translateY(20px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes modalFadeOut {
    from { opacity: 1; transform: translateY(0) scale(1); }
    to { opacity: 0; transform: translateY(10px) scale(0.97); }
}

dialog::backdrop {
    background: rgba(10, 8, 16, 0.6);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    opacity: 1;
}

dialog.is-opening::backdrop {
    animation: modalBackdropIn 300ms ease forwards;
}

dialog.is-closing::backdrop {
    animation: modalBackdropOut 220ms ease forwards;
}

@keyframes modalBackdropIn {
    from { opacity: 0; backdrop-filter: blur(0px); -webkit-backdrop-filter: blur(0px); }
    to { opacity: 1; backdrop-filter: blur(3px); -webkit-backdrop-filter: blur(3px); }
}

@keyframes modalBackdropOut {
    from { opacity: 1; backdrop-filter: blur(3px); -webkit-backdrop-filter: blur(3px); }
    to { opacity: 0; backdrop-filter: blur(0px); -webkit-backdrop-filter: blur(0px); }
}

#composer h2 {
    margin: 0 0 12px;
    font-size: 20px;
    font-weight: 700;
    color: #fff;
}

#composer label {
    display: grid;
    gap: 6px;
    margin: 12px 0;
    color: #ccc;
    font-size: 14px;
}

#composer input,
#composer textarea,
#composer button {
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.07);
    color: #fff;
    padding: 12px 14px;
    font: inherit;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    transition: transform 140ms ease, box-shadow 200ms ease, background-color 200ms ease, border-color 200ms ease;
}

#composer textarea {
    height: 50px;
    min-height: 50px;
    max-height: 80px;
    resize: none;
    overflow: auto;
}

#composer .char-counter {
    margin-top: 6px;
    text-align: right;
    font-size: 12px;
    color: rgba(255,255,255,0.75);
    letter-spacing: 0.2px;
}

#composer .row {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

#cancelBtn { order: 0; }
#createBtn, #limitInfo { order: 1; }

#cancelBtn {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35), inset 0 0 6px rgba(255, 255, 255, 0.10);
}

#cancelBtn:hover {
    background: rgba(255, 255, 255, 0.10);
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.4), inset 0 0 8px rgba(255, 255, 255, 0.12);
    transform: translateY(-1px);
}

#cancelBtn:active {
    transform: translateY(0);
}

#createBtn {
    background: linear-gradient(145deg, rgba(150,100,255,0.35), rgba(80,40,200,0.35));
    border: 1px solid rgba(180, 150, 255, 0.35);
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.4), 0 0 14px rgba(150, 100, 255, 0.22), inset 0 0 8px rgba(255, 255, 255, 0.12);
}

#createBtn:hover {
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.45), 0 0 18px rgba(150, 100, 255, 0.28), inset 0 0 10px rgba(255, 255, 255, 0.14);
    transform: translateY(-1px);
}

#createBtn:active {
    transform: translateY(0);
}

#createBtn:disabled {
    opacity: 0.6;
    cursor: default;
    filter: grayscale(0.1);
}

#cancelBtn:focus-visible,
#createBtn:focus-visible,
#fab:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px rgba(14, 10, 22, 0.8), 0 0 0 4px rgba(150, 100, 255, 0.45), 0 6px 20px rgba(0, 0, 0, 0.45);
}

.limit-info {
    display: inline-flex;
    align-items: center;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,0.12);
    background: rgba(255,255,255,0.06);
    color: #fff;
    font-size: 14px;
    opacity: 0.9;
}

.limit-info[hidden] { display: none !important; }
.limit-info:empty { display: none; }

#composer .hint { display: none; }

dialog#composer { position: relative; }

#composer .row {
    display: flex;
    gap: 10px;
    align-items: center;
}

#helpBtn {
    width: 36px;
    height: 36px;
    border-radius: 999px;
    border: 1px solid rgba(255,255,255,0.18);
    background: rgba(255,255,255,0.08);
    color: #fff;
    font-weight: 700;
    line-height: 0;
    display: grid;
    place-items: center;
    transition: transform 140ms ease, box-shadow 200ms ease, background-color 200ms ease, border-color 200ms ease;
    box-shadow: 0 6px 18px rgba(0,0,0,0.35), inset 0 0 6px rgba(255,255,255,0.10);
}

#helpBtn:hover { transform: translateY(-1px); }
#helpBtn:active { transform: translateY(0); }
#helpBtn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px rgba(14, 10, 22, 0.8), 0 0 0 4px rgba(150, 100, 255, 0.45);
}

#cancelBtn { margin-left: auto; }


.limit-info[hidden] { display: none !important; }
.limit-info:empty { display: none; }

dialog#composer { position: relative; }

#helpPanel.help-overlay {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: none;
  box-shadow: none;

  background: linear-gradient(135deg, rgba(18,16,28,0.65), rgba(24,18,40,0.65));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: #eef1f5;

  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px;

  z-index: 6;

  opacity: 0;
  transform: translateY(6px);
  pointer-events: none;
  transition: opacity 200ms ease, transform 200ms ease;
}

#helpPanel.help-overlay:not([hidden]) {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

#helpPanel .help-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 6px 0;
}

#helpPanel .help-title {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  flex: 1;
}

#helpPanel .help-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.10);
  color: #fff;
  display: grid;
  place-items: center;
  line-height: 1;
  font-size: 18px;
  cursor: pointer;
}

#helpPanel .help-content {
  font-size: 14px;
  line-height: 1.4;
  color: rgba(255,255,255,0.92);
  padding-right: 56px; 
  overflow: auto;
}

#helpPanel[hidden] { display: none !important; }