:root {
  --bg: #0f1220;
  --panel: #151a2f;
  --panel-2: #1a2140;
  --text: #e6e8f2;
  --muted: #a6accd;
  --accent: #7c4dff;
  --accent-2: #5a39d6;
  --danger: #ff4d6d;
  --ok: #22c55e;
  --outline: #2a325a;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f7fb;
    --panel: #ffffff;
    --panel-2: #f2f3f8;
    --text: #12131a;
    --muted: #5a5f7a;
    --accent: #5b43ff;
    --accent-2: #4936cc;
    --danger: #dc3059;
    --ok: #16a34a;
    --outline: #dfe3f0;
    --shadow: 0 10px 30px rgba(17, 24, 39, 0.1);
  }
}

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

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica Neue, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1200px 800px at 90% -10%, #5b43ff22, transparent 60%), var(--bg);
  color: var(--text);
}

/* Position theme toggle in top right */
.theme-switch {
  position: absolute;
  top: 24px;
  right: 32px;
  z-index: 100;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.app {
  max-width: 720px;
  margin: 40px auto;
  padding: 24px;
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  border: 1px solid var(--outline);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

h1 {
  margin: 0 0 16px;
  font-size: 28px;
  letter-spacing: 0.2px;
}

#todo-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
}
#todo-input {
  padding: 14px 16px;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--outline);
  border-radius: 10px;
  outline: none;
}
#todo-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 30%, transparent);
}
#todo-form button[type="submit"] {
  padding: 0 18px;
  border: none;
  border-radius: 10px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  color: white;
  font-weight: 600;
  cursor: pointer;
}
#todo-form button[type="submit"]:hover { filter: brightness(1.05); }
#todo-form button[type="submit"]:active { transform: translateY(1px); }

.controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 18px 0 8px;
}
.filters { display: flex; gap: 8px; }
.filter {
  padding: 8px 12px;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--outline);
  border-radius: 999px;
  cursor: pointer;
}
.filter.is-active, .filter[aria-pressed="true"] {
  background: color-mix(in oklab, var(--accent) 12%, transparent);
  border-color: color-mix(in oklab, var(--accent) 40%, var(--outline));
}
.meta { display: flex; align-items: center; gap: 10px; }
.meta #items-left { color: var(--muted); font-size: 14px; }
.meta .danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid color-mix(in oklab, var(--danger) 40%, var(--outline));
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
}
.meta .danger:hover { filter: brightness(1.05); }

.todo-list {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
}
.todo-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--outline);
  border-radius: 12px;
  background: var(--panel);
  margin-bottom: 10px;
}
.todo-item.completed .text { color: var(--muted); text-decoration: line-through; }

.check {
  width: 18px; height: 18px;
}

.text {
  padding: 8px 10px;
  border-radius: 8px;
}
.text:hover { background: color-mix(in oklab, var(--accent) 8%, transparent); }
.edit-input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--outline);
  border-radius: 8px;
  background: var(--panel-2);
  color: var(--text);
}

.actions { display: flex; gap: 8px; }
.icon-btn {
  display: inline-flex;
  align-items: center; justify-content: center;
  width: 34px; height: 34px;
  border: 1px solid var(--outline);
  border-radius: 8px;
  background: var(--panel-2);
  color: var(--text);
  cursor: pointer;
}
.icon-btn:hover { filter: brightness(1.05); }
.icon-btn.ok { color: var(--ok); border-color: color-mix(in oklab, var(--ok) 40%, var(--outline)); }
.icon-btn.danger { color: var(--danger); border-color: color-mix(in oklab, var(--danger) 40%, var(--outline)); }

.footer-note {
  margin-top: 16px;
  color: var(--muted);
  font-size: 13px;
}

.theme-toggle {
  padding: 8px 12px;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--outline);
  border-radius: 999px;
  cursor: pointer;
}
.theme-toggle:hover { filter: brightness(1.05); }

.theme-toggle.floating {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 1000;
  backdrop-filter: blur(6px) saturate(1.1);
  background: linear-gradient(180deg, color-mix(in oklab, var(--panel) 85%, transparent), var(--panel-2));
  box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}


:root[data-theme="light"] {
  --bg: #f6f7fb;
  --panel: #ffffff;
  --panel-2: #f2f3f8;
  --text: #12131a;
  --muted: #5a5f7a;
  --accent: #5b43ff;
  --accent-2: #4936cc;
  --danger: #dc3059;
  --ok: #16a34a;
  --outline: #dfe3f0;
  --shadow: 0 10px 30px rgba(17, 24, 39, 0.1);
}

:root[data-theme="dark"] {
  --bg: #0f1220;
  --panel: #151a2f;
  --panel-2: #1a2140;
  --text: #e6e8f2;
  --muted: #a6accd;
  --accent: #7c4dff;
  --accent-2: #5a39d6;
  --danger: #ff4d6d;
  --ok: #22c55e;
  --outline: #2a325a;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}


body { font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica Neue, Arial, "Apple Color Emoji", "Segoe UI Emoji"; }
h1 { font-family: Poppins, Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica Neue, Arial; font-weight: 800; letter-spacing: 0.4px; }

.grad {
  background: linear-gradient(90deg, #7c4dff, #22c55e, #ff4d6d);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.tagline {
  margin: 6px 0 12px;
  color: var(--muted);
}

.app {
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(6px) saturate(1.1);
  border: 2px solid transparent;
  background:
    linear-gradient(180deg, var(--panel), var(--panel-2)) padding-box,
    linear-gradient(120deg, color-mix(in oklab, var(--accent) 55%, transparent), color-mix(in oklab, var(--ok) 45%, transparent), color-mix(in oklab, var(--danger) 45%, transparent)) border-box;
}
.app::before, .app::after {
  content: "";
  position: absolute;
  inset: -40% auto auto -20%;
  width: 360px; height: 360px;
  background: radial-gradient(closest-side, color-mix(in oklab, var(--accent) 40%, transparent), transparent 70%);
  filter: blur(30px);
  opacity: 0.35;
  pointer-events: none;
  transform: translateZ(0);
  animation: floaty 18s ease-in-out infinite;
}
.app::after {
  inset: auto -20% -40% auto;
  background: radial-gradient(closest-side, color-mix(in oklab, var(--danger) 35%, transparent), transparent 70%);
  animation-duration: 22s;
}
@keyframes floaty {
  0% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(10px, -12px) rotate(8deg); }
  100% { transform: translate(0, 0) rotate(0deg); }
}

#todo-input {
  border: 1px solid color-mix(in oklab, var(--accent) 25%, var(--outline));
  background: linear-gradient(180deg, color-mix(in oklab, var(--panel-2) 85%, transparent), var(--panel-2));
}
#todo-form button[type="submit"] {
  box-shadow: 0 6px 20px color-mix(in oklab, var(--accent) 30%, transparent);
}

.filter.is-active, .filter[aria-pressed="true"] {
  background: linear-gradient(90deg, color-mix(in oklab, var(--accent) 25%, transparent), color-mix(in oklab, var(--ok) 18%, transparent));
  border-color: color-mix(in oklab, var(--accent) 50%, var(--outline));
}

.progress-wrap { display: grid; gap: 8px; margin: 10px 0 6px; }
.progress {
  position: relative; height: 10px; border-radius: 999px; overflow: hidden;
  background: color-mix(in oklab, var(--outline) 60%, transparent);
}
.progress-bar {
  height: 100%; width: 0%; border-radius: 999px;
  background: linear-gradient(90deg, var(--ok), color-mix(in oklab, var(--accent) 60%, var(--ok)));
  box-shadow: 0 6px 16px color-mix(in oklab, var(--ok) 20%, transparent);
  transition: width 300ms ease;
}
.progress-label { color: var(--muted); font-size: 13px; }

.empty {
  display: grid;
  place-items: center;
  text-align: center;
  gap: 4px;
  padding: 22px 16px 18px;
  border: 1px dashed color-mix(in oklab, var(--accent) 30%, var(--outline));
  border-radius: 14px;
  background: linear-gradient(180deg, color-mix(in oklab, var(--panel-2) 60%, transparent), transparent);
  color: var(--muted);
}
.empty .art { width: 120px; height: 120px; animation: gentle 4s ease-in-out infinite; opacity: 0.9; }
.empty-title { margin: 2px 0 0; font-weight: 700; color: var(--text); }
.empty-sub { margin: 0 0 2px; }
@keyframes gentle {
  0% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
  100% { transform: translateY(0); }
}

.todo-item {
  transition: transform 140ms ease, box-shadow 140ms ease, background 140ms ease;
  animation: fadeSlide 320ms ease both;
}
.todo-item:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(0,0,0,0.15); }
@keyframes fadeSlide {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.check {
  appearance: none; -webkit-appearance: none;
  width: 20px; height: 20px; border-radius: 6px;
  border: 1px solid var(--outline);
  background: var(--panel-2);
  display: grid; place-items: center;
  transition: all 160ms ease;
}
.check::after {
  content: "";
  width: 10px; height: 10px;
  transform: scale(0) rotate(45deg);
  border-right: 2px solid white; border-bottom: 2px solid white;
  border-radius: 1px;
  transition: transform 160ms ease;
}
.check:hover { border-color: color-mix(in oklab, var(--accent) 45%, var(--outline)); }
.check:checked {
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  border-color: color-mix(in oklab, var(--accent) 60%, var(--outline));
}
.check:checked::after { transform: scale(1) rotate(45deg); }

.text:hover { background: color-mix(in oklab, var(--accent) 10%, transparent); }

.icon-btn {
  background: linear-gradient(180deg, color-mix(in oklab, var(--panel-2) 90%, transparent), var(--panel-2));
}
.icon-btn.danger { background: linear-gradient(180deg, color-mix(in oklab, var(--danger) 15%, var(--panel-2)), var(--panel-2)); }

#app-title { text-align: center; }

.todo-item.dragging {
  opacity: 0.65;
  transform: scale(0.995);
  filter: saturate(0.95);
}
.todo-item.placeholder {
  background: none;
  border: 2px dashed color-mix(in oklab, var(--accent) 45%, var(--outline));
  border-radius: 12px;
  margin: 6px 0;
  animation: placeholderPulse 1.2s ease-in-out infinite;
}
@keyframes placeholderPulse {
  0% { opacity: 0.7; }
  50% { opacity: 1; }
  100% { opacity: 0.7; }
}
/* From Uiverse.io by Galahhad */ 
.theme-switch {
  --toggle-size: 12px;
  /* the size is adjusted using font-size,
     this is not transform scale,
     so you can choose any size */
  --container-width: 5.625em;
  --container-height: 2.5em;
  --container-radius: 6.25em;
  /* radius 0 - minecraft mode :) */
  --container-light-bg: #3D7EAE;
  --container-night-bg: #1D1F2C;
  --circle-container-diameter: 3.375em;
  --sun-moon-diameter: 2.125em;
  --sun-bg: #ECCA2F;
  --moon-bg: #C4C9D1;
  --spot-color: #959DB1;
  --circle-container-offset: calc((var(--circle-container-diameter) - var(--container-height)) / 2 * -1);
  --stars-color: #fff;
  --clouds-color: #F3FDFF;
  --back-clouds-color: #AACADF;
  --transition: .5s cubic-bezier(0, -0.02, 0.4, 1.25);
  --circle-transition: .3s cubic-bezier(0, -0.02, 0.35, 1.17);
}

.theme-switch, .theme-switch *, .theme-switch *::before, .theme-switch *::after {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-size: var(--toggle-size);
}

.theme-switch__container {
  width: var(--container-width);
  height: var(--container-height);
  background-color: var(--container-light-bg);
  border-radius: var(--container-radius);
  overflow: hidden;
  cursor: pointer;
  -webkit-box-shadow: 0em -0.062em 0.062em rgba(0, 0, 0, 0.25), 0em 0.062em 0.125em rgba(255, 255, 255, 0.94);
  box-shadow: 0em -0.062em 0.062em rgba(0, 0, 0, 0.25), 0em 0.062em 0.125em rgba(255, 255, 255, 0.94);
  -webkit-transition: var(--transition);
  -o-transition: var(--transition);
  transition: var(--transition);
  position: relative;
}

.theme-switch__container::before {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 0;
  -webkit-box-shadow: 0em 0.05em 0.187em rgba(0, 0, 0, 0.25) inset, 0em 0.05em 0.187em rgba(0, 0, 0, 0.25) inset;
  box-shadow: 0em 0.05em 0.187em rgba(0, 0, 0, 0.25) inset, 0em 0.05em 0.187em rgba(0, 0, 0, 0.25) inset;
  border-radius: var(--container-radius)
}

.theme-switch__checkbox {
  display: none;
}

.theme-switch__circle-container {
  width: var(--circle-container-diameter);
  height: var(--circle-container-diameter);
  background-color: rgba(255, 255, 255, 0.1);
  position: absolute;
  left: var(--circle-container-offset);
  top: var(--circle-container-offset);
  border-radius: var(--container-radius);
  -webkit-box-shadow: inset 0 0 0 3.375em rgba(255, 255, 255, 0.1), inset 0 0 0 3.375em rgba(255, 255, 255, 0.1), 0 0 0 0.625em rgba(255, 255, 255, 0.1), 0 0 0 1.25em rgba(255, 255, 255, 0.1);
  box-shadow: inset 0 0 0 3.375em rgba(255, 255, 255, 0.1), inset 0 0 0 3.375em rgba(255, 255, 255, 0.1), 0 0 0 0.625em rgba(255, 255, 255, 0.1), 0 0 0 1.25em rgba(255, 255, 255, 0.1);
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-transition: var(--circle-transition);
  -o-transition: var(--circle-transition);
  transition: var(--circle-transition);
  pointer-events: none;
}

.theme-switch__sun-moon-container {
  pointer-events: auto;
  position: relative;
  z-index: 2;
  width: var(--sun-moon-diameter);
  height: var(--sun-moon-diameter);
  margin: auto;
  border-radius: var(--container-radius);
  background-color: var(--sun-bg);
  -webkit-box-shadow: 0.062em 0.062em 0.062em 0em rgba(254, 255, 239, 0.61) inset, 0em -0.062em 0.062em 0em #a1872a inset;
  box-shadow: 0.062em 0.062em 0.062em 0em rgba(254, 255, 239, 0.61) inset, 0em -0.062em 0.062em 0em #a1872a inset;
  -webkit-filter: drop-shadow(0.062em 0.125em 0.125em rgba(0, 0, 0, 0.25)) drop-shadow(0em 0.062em 0.125em rgba(0, 0, 0, 0.25));
  filter: drop-shadow(0.062em 0.125em 0.125em rgba(0, 0, 0, 0.25)) drop-shadow(0em 0.062em 0.125em rgba(0, 0, 0, 0.25));
  overflow: hidden;
  -webkit-transition: var(--transition);
  -o-transition: var(--transition);
  transition: var(--transition);
}

.theme-switch__moon {
  -webkit-transform: translateX(100%);
  -ms-transform: translateX(100%);
  transform: translateX(100%);
  width: 100%;
  height: 100%;
  background-color: var(--moon-bg);
  border-radius: inherit;
  -webkit-box-shadow: 0.062em 0.062em 0.062em 0em rgba(254, 255, 239, 0.61) inset, 0em -0.062em 0.062em 0em #969696 inset;
  box-shadow: 0.062em 0.062em 0.062em 0em rgba(254, 255, 239, 0.61) inset, 0em -0.062em 0.062em 0em #969696 inset;
  -webkit-transition: var(--transition);
  -o-transition: var(--transition);
  transition: var(--transition);
  position: relative;
}

.theme-switch__spot {
  position:relative;
  top: 0.75em;
  right: 0.312em;
  width: 0.75em;
  height: 0.75em;
  border-radius: var(--container-radius);
  background-color: var(--spot-color);
  -webkit-box-shadow: 0em 0.0312em 0.062em rgba(0, 0, 0, 0.25) inset;
  box-shadow: 0em 0.0312em 0.062em rgba(0, 0, 0, 0.25) inset;
}

.theme-switch__spot:nth-of-type(2) {
  width: 0.375em;
  height: 0.375em;
  top: 0.937em;
right: 1.375em;
}

.theme-switch__spot:nth-last-of-type(3) {
  width: 0.25em;
  height: 0.25em;
  top: 0.312em;
  right: 0.812em;
}

.theme-switch__clouds {
  width: 1.25em;
  height: 1.25em;
  background-color: var(--clouds-color);
  border-radius: var(--container-radius);
  position: absolute;
  bottom: -0.625em;
  right: 0.312em;
  -webkit-box-shadow: 0.937em 0.312em var(--clouds-color), -0.312em -0.312em var(--back-clouds-color), 1.437em 0.375em var(--clouds-color), 0.5em -0.125em var(--back-clouds-color), 2.187em 0 var(--clouds-color), 1.25em -0.062em var(--back-clouds-color), 2.937em 0.312em var(--clouds-color), 2em -0.312em var(--back-clouds-color), 3.625em -0.062em var(--clouds-color), 2.625em 0em var(--back-clouds-color), 4.5em -0.312em var(--clouds-color), 3.375em -0.437em var(--back-clouds-color), 4.625em -1.75em 0 0.437em var(--clouds-color), 4em -0.625em var(--back-clouds-color), 4.125em -2.125em 0 0.437em var(--back-clouds-color);
  box-shadow: 0.937em 0.312em var(--clouds-color), -0.312em -0.312em var(--back-clouds-color), 1.437em 0.375em var(--clouds-color), 0.5em -0.125em var(--back-clouds-color), 2.187em 0 var(--clouds-color), 1.25em -0.062em var(--back-clouds-color), 2.937em 0.312em var(--clouds-color), 2em -0.312em var(--back-clouds-color), 3.625em -0.062em var(--clouds-color), 2.625em 0em var(--back-clouds-color), 4.5em -0.312em var(--clouds-color), 3.375em -0.437em var(--back-clouds-color), 4.625em -1.75em 0 0.437em var(--clouds-color), 4em -0.625em var(--back-clouds-color), 4.125em -2.125em 0 0.437em var(--back-clouds-color);
  -webkit-transition: 0.5s cubic-bezier(0, -0.02, 0.4, 1.25);
  -o-transition: 0.5s cubic-bezier(0, -0.02, 0.4, 1.25);
  transition: 0.5s cubic-bezier(0, -0.02, 0.4, 1.25);
}

.theme-switch__stars-container {
  position: absolute;
  color: var(--stars-color);
  top: -100%;
  right: 0.312em;
  width: 2.75em;
  height: auto;
  -webkit-transition: var(--transition);
  -o-transition: var(--transition);
  transition: var(--transition);
}

/* actions */

.theme-switch__checkbox:checked + .theme-switch__container {
  background-color: var(--container-night-bg);
}

.theme-switch__checkbox:checked + .theme-switch__container .theme-switch__circle-container {
  left: calc(100% - var(--circle-container-offset) - var(--circle-container-diameter));
}

.theme-switch__checkbox:checked + .theme-switch__container .theme-switch__circle-container:hover {
  left: calc(100% - var(--circle-container-offset) - var(--circle-container-diameter) - 0.187em)
}

.theme-switch__circle-container:hover {
  left: calc(var(--circle-container-offset) + 0.187em);
}

.theme-switch__checkbox:checked + .theme-switch__container .theme-switch__moon {
  -webkit-transform: translate(0);
  -ms-transform: translate(0);
  transform: translate(0);
}

.theme-switch__checkbox:checked + .theme-switch__container .theme-switch__clouds {
  bottom: -4.062em;
}

.theme-switch__checkbox:checked + .theme-switch__container .theme-switch__stars-container {
  top: 50%;
  -webkit-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  transform: translateY(-50%);
}