:root {
  --ink: var(--platform-text, #e8eaef);
  --muted: var(--platform-text-muted, #94a3b8);
  --line: var(--platform-border, #2a3140);
  --paper: var(--platform-bg, #0b0d12);
  --panel: var(--platform-surface, #161a22);
  --accent: var(--platform-accent, #ea580c);
  --accent-soft: var(--platform-accent-soft, rgba(234, 88, 12, 0.14));
  --font: "DM Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --radius: 14px;
}

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

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(ellipse 65% 40% at 90% -10%, rgba(234, 88, 12, 0.16), transparent 55%),
    radial-gradient(ellipse 45% 35% at 0% 100%, rgba(56, 189, 248, 0.07), transparent 50%),
    linear-gradient(168deg, #100d0b 0%, var(--paper) 48%, #0c1014 100%);
  background-attachment: fixed;
}

.shell {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.25rem 0 3rem;
}

.app-top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  margin-bottom: 1rem;
}

.app-top a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
}

.app-top a:hover {
  text-decoration: underline;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(18, 23, 31, 0.7);
  color: var(--ink);
  font: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
  text-decoration: none;
}

.btn:hover {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
}

.btn.primary {
  background: var(--accent);
  border-color: transparent;
  color: #fff;
}

.btn.primary:hover {
  background: var(--platform-accent-hover, #c2410c);
}

.btn.ghost {
  background: transparent;
}

.btn.danger {
  border-color: rgba(244, 63, 94, 0.45);
  color: #fda4af;
}

.btn.icon {
  width: 2.35rem;
  height: 2.35rem;
  padding: 0;
}

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(18, 23, 31, 0.72);
  backdrop-filter: blur(8px);
  padding: 1rem 1.05rem 1.1rem;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 1rem;
}

.toolbar .spacer {
  flex: 1;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #0f131a;
  color: var(--ink);
  font: inherit;
  font-size: 0.95rem;
  padding: 0.65rem 0.75rem;
}

textarea {
  min-height: 5rem;
  resize: vertical;
  line-height: 1.45;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

label.field {
  display: grid;
  gap: 0.3rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.form-grid {
  display: grid;
  gap: 0.75rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
}

.empty {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 1.25rem;
  transform: translateX(-50%);
  z-index: 50;
  background: #1a2230;
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 0.65rem 1rem;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

.toast[hidden] {
  display: none;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: rgba(5, 7, 10, 0.72);
  backdrop-filter: blur(4px);
}

.modal[hidden] {
  display: none;
}

.modal-card {
  width: min(440px, 100%);
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #141820;
  padding: 1.15rem 1.2rem 1.25rem;
}

.modal-card h2 {
  margin: 0 0 0.85rem;
  font-size: 1.15rem;
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.modal-actions .grow {
  flex: 1;
}

/* Hub */
.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.85rem;
}

.hub-card {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  min-height: 100%;
  padding: 1.05rem 1.1rem 1.15rem;
  border-radius: var(--radius);
  border: 1px solid rgba(58, 74, 96, 0.85);
  border-top: 3px solid var(--card-accent, var(--accent));
  background: rgba(18, 23, 31, 0.65);
  color: inherit;
  text-decoration: none;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.hub-card:hover {
  transform: translateY(-2px);
  border-color: var(--card-accent, var(--accent));
  background: rgba(18, 23, 31, 0.88);
}

.hub-card h2 {
  margin: 0;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.hub-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

/* Tasks */
.task-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 260px);
  gap: 1rem;
  align-items: start;
}

.task-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
}

.task-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.65rem;
  align-items: start;
  padding: 0.75rem 0.85rem;
  border-radius: 12px;
  border: 1px solid rgba(42, 49, 64, 0.85);
  background: rgba(0, 0, 0, 0.18);
}

.task-item.done .task-title {
  text-decoration: line-through;
  color: var(--muted);
}

.task-title {
  font-weight: 650;
}

.task-meta {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.78rem;
  color: var(--muted);
}

.prio {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.2rem 0.45rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
}

.prio.high {
  color: #fda4af;
  border-color: rgba(244, 63, 94, 0.4);
}

.prio.medium {
  color: #fcd34d;
  border-color: rgba(245, 158, 11, 0.4);
}

/* Notes */
.notes-layout {
  display: grid;
  grid-template-columns: minmax(200px, 280px) minmax(0, 1fr);
  gap: 1rem;
  min-height: 28rem;
}

.note-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
  max-height: 70vh;
  overflow: auto;
}

.note-item {
  text-align: left;
  border: 1px solid rgba(42, 49, 64, 0.85);
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.18);
  color: inherit;
  padding: 0.7rem 0.8rem;
  cursor: pointer;
  font: inherit;
}

.note-item.active {
  border-color: color-mix(in srgb, var(--accent) 60%, var(--line));
  background: var(--accent-soft);
}

.note-item strong {
  display: block;
  font-size: 0.92rem;
}

.note-item span {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.75rem;
  color: var(--muted);
}

.note-editor textarea {
  min-height: 22rem;
  font-size: 1rem;
  line-height: 1.55;
}

/* Focus */
.focus-stage {
  display: grid;
  place-items: center;
  gap: 1.25rem;
  padding: 2.5rem 1rem;
  text-align: center;
}

.focus-ring {
  width: min(280px, 70vw);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 3px solid color-mix(in srgb, var(--accent) 45%, var(--line));
  background:
    radial-gradient(circle at 50% 40%, var(--accent-soft), transparent 65%),
    rgba(0, 0, 0, 0.25);
  display: grid;
  place-items: center;
  gap: 0.35rem;
}

.focus-time {
  font-family: var(--mono);
  font-size: clamp(2.8rem, 10vw, 3.8rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
}

.focus-mode {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.focus-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.focus-stats strong {
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

/* Habits */
.habit-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.habit-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.75rem;
  align-items: center;
  padding: 0.85rem 0.95rem;
  border-radius: 12px;
  border: 1px solid rgba(42, 49, 64, 0.85);
  background: rgba(0, 0, 0, 0.18);
}

.habit-name {
  font-weight: 650;
}

.habit-streak {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.78rem;
  color: var(--muted);
}

.habit-days {
  display: flex;
  gap: 0.3rem;
}

.habit-day {
  width: 2rem;
  height: 2rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.68rem;
  font-weight: 700;
  cursor: pointer;
}

.habit-day.on {
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  color: var(--ink);
}

/* Board */
.board {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
  align-items: start;
}

.board-col {
  min-height: 20rem;
}

.board-col h2 {
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
}

.board-cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
  min-height: 4rem;
}

.board-card {
  padding: 0.75rem 0.8rem;
  border-radius: 10px;
  border: 1px solid rgba(42, 49, 64, 0.9);
  background: rgba(0, 0, 0, 0.22);
  cursor: grab;
}

.board-card:active {
  cursor: grabbing;
}

.board-card p {
  margin: 0.35rem 0 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.board-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.55rem;
}

.board-actions button {
  font-size: 0.75rem;
  padding: 0.3rem 0.55rem;
}

/* Countdown */
.countdown-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.85rem;
}

.countdown-card {
  padding: 1.05rem 1.1rem;
  border-radius: var(--radius);
  border: 1px solid rgba(42, 49, 64, 0.9);
  border-top: 3px solid var(--accent);
  background: rgba(18, 23, 31, 0.72);
}

.countdown-card h2 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}

.countdown-card .when {
  margin: 0 0 0.85rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.countdown-digits {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.4rem;
  text-align: center;
}

.countdown-digits div {
  padding: 0.55rem 0.2rem;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(42, 49, 64, 0.7);
}

.countdown-digits strong {
  display: block;
  font-family: var(--mono);
  font-size: 1.35rem;
  font-variant-numeric: tabular-nums;
}

.countdown-digits span {
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

@media (max-width: 900px) {
  .task-layout,
  .notes-layout,
  .board {
    grid-template-columns: 1fr;
  }

  .board-col {
    min-height: 0;
  }
}

@media (max-width: 560px) {
  .shell {
    width: min(100% - 1rem, 1180px);
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .habit-row {
    grid-template-columns: 1fr;
  }
}