:root {
  color-scheme: dark;
  --bg: #10201f;
  --bg-soft: rgba(13, 32, 29, 0.74);
  --surface: rgba(231, 244, 239, 0.1);
  --surface-strong: rgba(232, 244, 239, 0.18);
  --border: rgba(220, 255, 244, 0.16);
  --text: #eff7f2;
  --muted: #b8cac1;
  --accent: #9be4cf;
  --accent-strong: #66cdb0;
  --accent-warm: #f6b18d;
  --shadow: 0 28px 60px rgba(6, 17, 15, 0.35);
  --radius: 8px;
}

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

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "Inter", sans-serif;
  background: var(--bg);
  color: var(--text);
}

body {
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
}

button,
input {
  font: inherit;
}

.backdrop-photo {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) brightness(0.58);
  transform: scale(1.03);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background:
    linear-gradient(160deg, rgba(9, 20, 19, 0.25), rgba(9, 20, 19, 0.7)),
    linear-gradient(180deg, rgba(7, 16, 15, 0.05), rgba(7, 16, 15, 0.4));
}

.page-shell {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  padding: 32px 20px 28px;
}

.topbar,
.app-grid {
  position: relative;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  margin-bottom: 24px;
}

.topbar h1,
.panel-head h2 {
  margin: 0;
  line-height: 1.05;
  letter-spacing: 0;
}

.topbar h1 {
  font-size: 3.4rem;
  max-width: 11ch;
}

.eyebrow,
.today-label,
.stat-label,
.time-label {
  margin: 0 0 8px;
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--muted);
  letter-spacing: 0;
}

.today-block {
  min-width: 180px;
  padding-top: 8px;
  text-align: right;
}

.today-date {
  margin: 0;
  font-size: 1rem;
  color: var(--text);
}

.app-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(300px, 0.9fr);
  gap: 20px;
  align-items: start;
}

.timer-panel,
.side-panel {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.timer-panel {
  padding: 26px;
  min-height: 720px;
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: 24px;
}

.side-panel {
  padding: 22px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: start;
}

.panel-head h2 {
  font-size: 1.45rem;
}

.panel-note {
  margin: 0;
  max-width: 24ch;
  color: var(--muted);
  text-align: right;
  line-height: 1.45;
}

.mode-tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.mode-tab,
.button {
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background-color 150ms ease, border-color 150ms ease, transform 150ms ease;
}

.mode-tab {
  background: rgba(226, 244, 237, 0.08);
  color: var(--muted);
  padding: 12px 14px;
  border-color: rgba(228, 250, 242, 0.08);
  cursor: pointer;
}

.mode-tab:hover,
.button:hover {
  transform: translateY(-1px);
}

.mode-tab.is-active {
  background: rgba(155, 228, 207, 0.18);
  color: var(--text);
  border-color: rgba(155, 228, 207, 0.22);
}

.timer-stage {
  display: grid;
  place-items: center;
  gap: 28px;
  padding: 8px 0 4px;
}

.progress-ring {
  position: relative;
  width: min(100%, 420px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}

.progress-ring svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.ring-track,
.ring-progress {
  fill: none;
  stroke-width: 10;
}

.ring-track {
  stroke: rgba(233, 246, 241, 0.14);
}

.ring-progress {
  stroke: url(#ringGradient);
  stroke: var(--accent);
  stroke-linecap: round;
  stroke-dasharray: 578;
  stroke-dashoffset: 578;
}

.timer-copy {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
  padding: 0 24px;
}

.timer-display {
  margin: 0;
  font-size: 6rem;
  line-height: 0.95;
  font-weight: 700;
  letter-spacing: 0;
}

.timer-subtext {
  margin: 12px auto 0;
  max-width: 22ch;
  color: var(--muted);
  line-height: 1.45;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.button {
  min-width: 110px;
  padding: 12px 18px;
  font-weight: 600;
  cursor: pointer;
}

.button-primary {
  background: var(--accent);
  color: #0d1c1a;
}

.button-secondary {
  background: rgba(240, 248, 245, 0.08);
  border-color: rgba(240, 248, 245, 0.16);
  color: var(--text);
}

.button-ghost {
  background: transparent;
  border-color: rgba(240, 248, 245, 0.14);
  color: var(--muted);
}

.intention-form {
  display: grid;
  gap: 12px;
}

.intention-form label,
.setting-field span {
  font-weight: 600;
}

.intention-row,
.task-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

.intention-form input,
.task-form input,
.setting-field input {
  width: 100%;
  min-width: 0;
  border-radius: var(--radius);
  border: 1px solid rgba(236, 248, 244, 0.18);
  background: rgba(240, 248, 245, 0.09);
  color: var(--text);
  padding: 12px 14px;
  outline: none;
}

.intention-form input:focus,
.task-form input:focus,
.setting-field input:focus {
  border-color: rgba(155, 228, 207, 0.55);
  box-shadow: 0 0 0 3px rgba(155, 228, 207, 0.12);
}

.intention-output {
  margin: 0;
  color: var(--muted);
}

.task-form {
  margin: 20px 0 18px;
}

.task-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

.task-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 13px 14px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid rgba(237, 248, 244, 0.08);
}

.task-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent-warm);
}

.task-item span {
  overflow-wrap: anywhere;
  line-height: 1.4;
}

.task-item.is-complete span {
  color: rgba(184, 202, 193, 0.72);
  text-decoration: line-through;
}

.task-delete {
  padding: 0;
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
}

.empty-state {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.settings-grid,
.stats-grid {
  display: grid;
  gap: 14px;
}

.settings-grid {
  margin: 20px 0 22px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.setting-field {
  display: grid;
  gap: 10px;
}

.setting-field input {
  text-align: center;
}

.stats-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stat-block {
  margin: 0;
  padding: 14px;
  border-radius: var(--radius);
  background: var(--surface-strong);
  border: 1px solid rgba(237, 248, 244, 0.1);
}

.stat-value {
  margin: 0;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0;
}

@media (max-width: 980px) {
  .app-grid {
    grid-template-columns: 1fr;
  }

  .timer-panel {
    min-height: auto;
  }
}

@media (max-width: 720px) {
  .page-shell {
    padding: 18px 14px 20px;
  }

  .topbar h1 {
    font-size: 2.45rem;
  }

  .topbar {
    flex-direction: column;
    align-items: stretch;
    margin-bottom: 18px;
  }

  .today-block,
  .panel-note {
    text-align: left;
  }

  .timer-panel,
  .side-panel {
    padding: 18px;
  }

  .settings-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .timer-display {
    font-size: 4.5rem;
  }

  .mode-tabs,
  .intention-row,
  .task-form {
    grid-template-columns: 1fr;
  }

  .controls {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }
}