@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=DM+Sans:wght@300;400;500;600&display=swap');

:root {
  --bg-main:        #04040a;
  --bg-card:        rgba(255, 255, 255, 0.035);
  --bg-task:        rgba(255, 255, 255, 0.045);
  --bg-task-hover:  rgba(255, 255, 255, 0.08);
  --bg-modal:       rgba(10, 10, 20, 0.85);
  --bg-input:       rgba(0, 0, 0, 0.4);
  --border:         rgba(255, 255, 255, 0.07);
  --border-hover:   rgba(255, 255, 255, 0.18);
  --border-accent:  rgba(99, 102, 241, 0.45);
  --border-modal:   rgba(139, 92, 246, 0.35);
  --text-primary:   #f0f0f8;
  --text-secondary: #6b6b85;
  --text-muted:     #3d3d55;
  --accent-1:       #6366f1;
  --accent-2:       #a855f7;
  --accent-3:       #ec4899;
  --accent-grad:    linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
  --success:        #10f0a0;
  --success-dim:    rgba(16, 240, 160, 0.12);
  --success-border: rgba(16, 240, 160, 0.35);
  --success-glow:   rgba(16, 240, 160, 0.25);
  --danger:         #ff4f6b;
  --danger-dim:     rgba(255, 79, 107, 0.12);
  --danger-border:  rgba(255, 79, 107, 0.35);
  --danger-glow:    rgba(255, 79, 107, 0.25);
  --radius-xl:      22px;
  --radius-lg:      16px;
  --radius-md:      12px;
  --shadow-card:    0 24px 48px rgba(0, 0, 0, 0.5), 0 1px 0 rgba(255,255,255,0.05) inset;
  --shadow-task:    0 8px 24px rgba(0, 0, 0, 0.3), 0 1px 0 rgba(255,255,255,0.04) inset;
  --shadow-modal:   0 40px 80px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(255,255,255,0.04), 0 1px 0 rgba(255,255,255,0.08) inset;
  --shadow-btn:     0 4px 20px rgba(99, 102, 241, 0.4);
  --transition:     cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'DM Sans', system-ui, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 4rem 1rem 6rem;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before,
body::after {
  content: '';
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: -1;
}

body::before {
  width: 70vw;
  height: 70vw;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(ellipse, rgba(99, 102, 241, 0.1) 0%, transparent 65%);
  filter: blur(60px);
}

body::after {
  width: 50vw;
  height: 50vw;
  bottom: -10%;
  right: -10%;
  background: radial-gradient(ellipse, rgba(168, 85, 247, 0.08) 0%, transparent 65%);
  filter: blur(80px);
}

body > * {
  position: relative;
}

h1 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.05em;
  margin-bottom: 3.5rem;
  text-align: center;
  background: linear-gradient(135deg, #ffffff 0%, #c4c4d4 60%, #7878a8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 30px rgba(139, 92, 246, 0.2));
}

.board {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
  width: 100%;
  max-width: 1300px;
}

.column {
  flex: 1;
  min-width: 300px;
  max-width: 380px;
  background: var(--bg-card);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  transition: border-color 0.4s var(--transition), transform 0.4s var(--transition), box-shadow 0.4s var(--transition);
}

.column:hover {
  border-color: rgba(99, 102, 241, 0.25);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card), 0 0 0 1px rgba(99, 102, 241, 0.08);
}

.column.drag-over {
  border-color: var(--border-accent);
  background: rgba(99, 102, 241, 0.06);
  box-shadow: var(--shadow-card), 0 0 0 1px rgba(99, 102, 241, 0.2);
}

.column h2 {
  font-family: 'Syne', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.column h2 .badge {
  font-size: 0.7rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 0.2rem 0.55rem;
  border-radius: 99px;
  letter-spacing: 0.04em;
}

.tasks {
  flex: 1;
  min-height: 180px;
  max-height: 55vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  padding-right: 2px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.08) transparent;
}

.tasks::-webkit-scrollbar {
  width: 4px;
}
.tasks::-webkit-scrollbar-track {
  background: transparent;
}
.tasks::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.08);
  border-radius: 99px;
}

.task {
  background: var(--bg-task);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 400;
  line-height: 1.55;
  box-shadow: var(--shadow-task);
  cursor: grab;
  user-select: none;
  position: relative;
  overflow: hidden;
  transition: all 0.35s var(--transition);
  animation: taskIn 0.45s var(--transition) both;
}

.task::before {
  content: '';
  position: absolute;
  left: 0; top: 20%; bottom: 20%;
  width: 2px;
  border-radius: 99px;
  background: var(--accent-grad);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.task:hover::before {
  opacity: 0.7;
}

.task:active {
  cursor: grabbing;
}

.task:hover {
  border-color: var(--border-hover);
  background: var(--bg-task-hover);
  transform: translateY(-3px) scale(1.01);
  box-shadow: 0 20px 40px rgba(0,0,0,0.45), 0 1px 0 rgba(255,255,255,0.07) inset;
}

.task.dragging {
  opacity: 0.4;
  transform: scale(0.97);
  border-color: var(--border-accent);
}

.add-btn {
  width: 100%;
  padding: 0.8rem 1.5rem;
  font-size: 0.88rem;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  letter-spacing: 0.03em;
  background: var(--accent-grad);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s var(--transition);
  box-shadow: var(--shadow-btn);
  text-shadow: 0 1px 3px rgba(0,0,0,0.25);
  position: relative;
  overflow: hidden;
  margin-top: auto;
}

.add-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(255,255,255,0.15) 50%, transparent 60%);
  transform: translateX(-100%);
  transition: transform 0.5s ease;
}

.add-btn:hover::after {
  transform: translateX(100%);
}

.add-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.55);
  filter: brightness(1.08);
}

.add-btn:active {
  transform: translateY(1px) scale(0.98);
  box-shadow: 0 2px 10px rgba(99, 102, 241, 0.3);
}

body:has(.containerofgetUserTask) {
  overflow: hidden;
}

body:has(.containerofgetUserTask) > h1,
body:has(.containerofgetUserTask) > .board,
body:has(.containerofgetUserTask)::before,
body:has(.containerofgetUserTask)::after {
  filter: blur(8px);
  pointer-events: none;
  transition: filter 0.4s var(--transition);
}

body > h1,
body > .board,
body::before,
body::after {
  transition: filter 0.4s var(--transition);
}

.containerofgetUserTask {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--bg-modal);
  backdrop-filter: blur(40px) saturate(200%);
  -webkit-backdrop-filter: blur(40px) saturate(200%);
  padding: 2.5rem;
  border: 1px solid var(--border-modal);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-modal), 0 0 0 100vmax rgba(0, 0, 0, 0.65);
  z-index: 1000;
  width: min(480px, 92vw);
  height: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  animation: modalIn 0.4s var(--transition) forwards;
}

.containerofgetUserTask::before {
  content: '';
  position: absolute;
  top: 0; left: 10%; right: 10%;
  height: 2px;
  background: var(--accent-grad);
  border-radius: 99px;
  opacity: 0.9;
}

.modal-title {
  font-family: 'Syne', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.modal-input-row {
  width: 100%;
}

.getUserTaskUi {
  width: 100%;
  padding: 0.9rem 1.1rem;
  font-size: 0.97rem;
  font-family: 'DM Sans', sans-serif;
  font-weight: 400;
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text-primary);
  border-radius: var(--radius-md);
  outline: none;
  transition: all 0.35s var(--transition);
  caret-color: var(--accent-2);
  grid-column: 1 / 3;
}

.getUserTaskUi:focus {
  border-color: var(--border-accent);
  background: rgba(0, 0, 0, 0.55);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12), 0 8px 20px rgba(0,0,0,0.3);
}

.getUserTaskUi::placeholder {
  color: var(--text-muted);
  font-weight: 300;
}

.modal-btn-row {
  display: flex;
  gap: 0.75rem;
  width: 100%;
}

.addBtnOfGetUserTask,
.cancelBtnOfGetUserTask {
  padding: 0.82rem 1rem;
  font-size: 0.9rem;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: 1px solid;
  transition: all 0.3s var(--transition);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.addBtnOfGetUserTask {
  background: var(--success-dim);
  color: var(--success);
  border-color: var(--success-border);
  box-shadow: 0 4px 16px var(--success-glow);
}

.addBtnOfGetUserTask:hover {
  background: rgba(16, 240, 160, 0.2);
  border-color: rgba(16, 240, 160, 0.55);
  box-shadow: 0 8px 28px var(--success-glow);
  transform: translateY(-2px);
}

.addBtnOfGetUserTask:active {
  transform: translateY(1px);
}

.cancelBtnOfGetUserTask {
  background: var(--danger-dim);
  color: var(--danger);
  border-color: var(--danger-border);
  box-shadow: 0 4px 16px var(--danger-glow);
}

.cancelBtnOfGetUserTask:hover {
  background: rgba(255, 79, 107, 0.2);
  border-color: rgba(255, 79, 107, 0.55);
  box-shadow: 0 8px 28px var(--danger-glow);
  transform: translateY(-2px);
}

.cancelBtnOfGetUserTask:active {
  transform: translateY(1px);
}

button i,
button svg {
  margin-right: 6px;
  vertical-align: middle;
}

@keyframes taskIn {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: translate(-50%, -44%) scale(0.93);
  }
  to {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@media (max-width: 768px) {
  body {
    padding: 2.5rem 0.75rem 5rem;
  }

  h1 {
    margin-bottom: 2rem;
  }

  .board {
    gap: 1rem;
  }

  .column {
    min-width: 100%;
    max-width: 100%;
  }

  .containerofgetUserTask {
    width: 92vw;
    padding: 1.5rem;
  }

  .tasks {
    max-height: 40vh;
  }
}

@media (max-width: 400px) {
  .modal-btn-row {
    flex-direction: column;
  }
}