:root {
  --paper: #f6f3ee;
  --ink: #0f1013;
  --muted: #5f6470;
  --line: rgba(15, 16, 19, 0.12);
  --blue: #1f8fff;
  --blue-soft: #edf5ff;
  --orange: #ec7c5c;
  --panel: rgba(255, 255, 255, 0.92);
  --shadow: 0 22px 60px rgba(9, 15, 28, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top, rgba(31, 143, 255, 0.12), transparent 28%),
    linear-gradient(180deg, #fbfaf8 0%, var(--paper) 100%);
  color: var(--ink);
  font-family: "Malgun Gothic", "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
  border: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

.app-shell {
  width: min(calc(100% - 32px), 1440px);
  margin: 0 auto;
  padding-bottom: 56px;
}

.site-header,
.section {
  width: 100%;
}

.site-header {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  padding: 22px 0 12px;
}

.site-mark,
.header-links a {
  font-weight: 800;
}

.site-mark {
  font-family: "Arial Black", "Segoe UI", sans-serif;
  font-size: 1.1rem;
}

.header-links {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
  color: var(--muted);
}

.header-links a {
  color: var(--ink);
}

.hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding: 20px 0 28px;
}

.hero-copy,
.metric-card,
.calendar-column,
.detail-card,
.badge-card {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 28px;
}

.eyebrow,
.section-kicker,
.metric-label,
.badge-tone,
.calendar-day-label {
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero-copy h1,
.dashboard-head h2,
.section-head h2,
.detail-card h2 {
  margin: 14px 0;
  font-family: "Arial Black", "Segoe UI", sans-serif;
  font-size: clamp(2.8rem, 7vw, 5.8rem);
  line-height: 0.9;
  letter-spacing: -0.08em;
}

.hero-body {
  max-width: 48ch;
  margin: 0 0 24px;
  font-size: 1.06rem;
  line-height: 1.8;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.primary-link,
.secondary-link,
.task-form button,
.task-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--ink);
  background: transparent;
  font-weight: 800;
  transition: transform 180ms ease, background-color 180ms ease, color 180ms ease;
}

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

.secondary-link:hover,
.task-action:hover,
.calendar-cell:hover {
  transform: translateY(-1px);
}

.dashboard {
  padding: 14px 0 24px;
}

.dashboard-head,
.section-head,
.detail-card-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
}

.dashboard-head h2,
.section-head h2,
.detail-card h2 {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
}

.date-control {
  display: grid;
  gap: 8px;
  font-weight: 700;
}

.date-summary {
  display: grid;
  gap: 8px;
  align-content: end;
  padding: 0 2px 2px;
}

.date-summary span {
  font-size: 0.95rem;
  font-weight: 700;
}

.date-summary strong {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.78);
  font-size: 1rem;
}

.date-control input,
.task-form input {
  min-height: 48px;
  padding: 0 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: #fff;
}

.metric-grid,
.badge-grid,
.planner-grid {
  display: grid;
  gap: 20px;
}

.range-switch {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 22px;
  margin-bottom: 14px;
}

.range-pill {
  min-height: 40px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
  color: var(--ink);
  font-weight: 800;
}

.range-pill.active {
  background: var(--ink);
  color: #fff;
  border-color: transparent;
}

.schedule-form {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 240px));
  gap: 14px;
  margin-top: 22px;
}

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

.metric-card {
  padding: 24px;
}

.metric-value {
  display: block;
  margin: 12px 0;
  font-family: "Arial Black", "Segoe UI", sans-serif;
  font-size: clamp(2rem, 5vw, 3.6rem);
  letter-spacing: -0.06em;
}

.security-note {
  margin-top: 16px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.76);
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

.metric-card p,
.detail-mission,
.detail-focus,
.calendar-copy {
  margin: 0;
  line-height: 1.7;
  color: var(--muted);
}

.badge-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 20px;
}

.badge-card {
  padding: 22px;
}

.badge-card.locked {
  opacity: 0.58;
}

.badge-card.unlocked {
  background: linear-gradient(180deg, rgba(31, 143, 255, 0.14), rgba(255, 255, 255, 0.95));
}

.badge-card h3 {
  margin: 10px 0 6px;
  font-size: 1.2rem;
}

.badge-card p {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.65;
  color: var(--muted);
}

.planner-grid {
  grid-template-columns: 1fr;
  align-items: start;
}

.calendar-column {
  padding: 26px;
  min-width: 0;
}

.calendar-heading {
  display: grid;
  gap: 12px;
}

.calendar-title-card {
  display: inline-grid;
  gap: 0;
}

.calendar-title-year,
.calendar-title-month {
  font-family: "Arial Black", "Segoe UI", sans-serif;
  line-height: 0.88;
  letter-spacing: -0.08em;
}

.calendar-title-year {
  font-size: clamp(3.6rem, 8vw, 5.4rem);
}

.calendar-title-month {
  font-size: clamp(3rem, 7vw, 4.5rem);
}

.challenge-scroll {
  max-height: 72vh;
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 6px;
}

.challenge-scroll::-webkit-scrollbar {
  width: 10px;
}

.challenge-scroll::-webkit-scrollbar-thumb {
  background: rgba(15, 16, 19, 0.18);
  border-radius: 999px;
}

.challenge-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.calendar-cell {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 10px;
  min-height: 156px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(237, 245, 255, 0.74));
  text-align: left;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.calendar-select {
  display: grid;
  align-content: start;
  gap: 10px;
  width: 100%;
  padding: 4px;
  background: transparent;
  color: inherit;
  text-align: left;
}

.calendar-inline-tools {
  display: grid;
  gap: 8px;
  padding: 0 4px 4px;
}

.calendar-inline-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 6px;
}

.calendar-inline-input {
  min-width: 0;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  font-size: 0.82rem;
}

.calendar-inline-add,
.calendar-inline-delete {
  min-height: 34px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(15, 16, 19, 0.08);
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--ink);
}

.calendar-inline-add {
  background: var(--blue);
  color: #fff;
}

.calendar-inline-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.calendar-inline-item {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: center;
  padding: 8px 10px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.75);
  font-size: 0.8rem;
  line-height: 1.4;
}

.calendar-inline-item.done {
  opacity: 0.78;
}

.calendar-inline-item span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.calendar-inline-check {
  display: flex;
  align-items: start;
  gap: 8px;
  min-width: 0;
  flex: 1;
}

.calendar-inline-checkbox {
  width: 18px;
  height: 18px;
  margin-top: 1px;
  accent-color: var(--blue);
  flex: 0 0 auto;
}

.calendar-inline-item.done .calendar-inline-check span {
  color: var(--muted);
  text-decoration: line-through;
}

.calendar-inline-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
}

.calendar-inline-done {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(31, 143, 255, 0.12);
  color: var(--blue);
  font-size: 0.74rem;
  font-weight: 800;
}

.calendar-cell.active {
  border-color: var(--blue);
  box-shadow: inset 0 0 0 1px var(--blue);
}

.calendar-cell.done {
  background: linear-gradient(180deg, rgba(31, 143, 255, 0.18), rgba(255, 255, 255, 0.96));
}

.calendar-cell.today {
  outline: 2px solid rgba(236, 124, 92, 0.35);
  outline-offset: 0;
}

.calendar-cell-head {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: start;
}

.calendar-date {
  font-family: "Arial Black", "Segoe UI", sans-serif;
  font-size: 1.1rem;
  font-weight: 800;
}

.calendar-book {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(15, 16, 19, 0.08);
  font-size: 0.76rem;
  font-weight: 800;
}

.calendar-status {
  min-height: 26px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(15, 16, 19, 0.08);
  font-size: 0.76rem;
  font-weight: 800;
}

.calendar-cell.done .calendar-status {
  background: var(--blue);
  color: #fff;
}

.calendar-tool {
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.35;
}

.calendar-task-preview {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

.badge-toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 40;
  min-width: 280px;
  max-width: min(360px, calc(100vw - 32px));
  padding: 18px 18px 20px;
  border: 1px solid rgba(31, 143, 255, 0.28);
  background:
    radial-gradient(circle at top, rgba(31, 143, 255, 0.16), transparent 42%),
    rgba(15, 16, 19, 0.96);
  color: #fff;
  box-shadow: 0 24px 60px rgba(15, 16, 19, 0.26);
  animation: badge-pop 720ms cubic-bezier(0.16, 1, 0.3, 1);
}

.badge-toast-label {
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.72);
}

.badge-toast strong {
  display: block;
  margin-top: 8px;
  font-family: "Arial Black", "Segoe UI", sans-serif;
  font-size: 2rem;
  line-height: 0.94;
  letter-spacing: -0.06em;
}

.badge-toast p {
  margin: 10px 0 0;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.6;
}

@keyframes badge-pop {
  0% {
    opacity: 0;
    transform: translateY(24px) scale(0.92) rotate(-2deg);
  }
  55% {
    opacity: 1;
    transform: translateY(-6px) scale(1.04) rotate(1deg);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1) rotate(0deg);
  }
}

@media (max-width: 1220px) {
  .hero,
  .planner-grid,
  .metric-grid,
  .badge-grid {
    grid-template-columns: 1fr;
  }

  .detail-column {
    position: static;
  }
}

@media (max-width: 920px) {
  .challenge-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .app-shell {
    width: min(calc(100% - 20px), 1440px);
  }

  .site-header,
  .dashboard-head,
  .section-head,
  .detail-card-head,
  .task-form {
    display: grid;
    grid-template-columns: 1fr;
    align-items: stretch;
  }

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

  .challenge-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .challenge-scroll {
    max-height: none;
    overflow: visible;
    padding-right: 0;
  }

  .task-head-copy {
    white-space: normal;
  }

  .task-item {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .task-meta {
    grid-column: 2;
  }

  .badge-toast {
    right: 10px;
    left: 10px;
    bottom: 10px;
    max-width: none;
    min-width: 0;
  }
}