/* ─── Reset & Base ──────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg:           #FAFAF8;
  --color-surface:      #F2F1ED;
  --color-text:         #111111;
  --color-text-mid:     #444444;
  --color-text-muted:   #888888;
  --color-border:       #DDDBD4;
  --color-border-strong:#111111;
  --color-achieved:     #111111;
  --color-ongoing:      #FAFAF8;

  --font-sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  --max-width: 1080px;
  --page-x: clamp(1.25rem, 4vw, 3rem);
}

/* ─── Dark Mode ─────────────────────────────────────────────── */
[data-theme="dark"] {
  --color-bg:           #111111;
  --color-surface:      #1C1C1A;
  --color-text:         #EDECEA;
  --color-text-mid:     #AAAAAA;
  --color-text-muted:   #666666;
  --color-border:       #2A2A28;
  --color-border-strong:#EDECEA;
  --color-achieved:     #EDECEA;
  --color-ongoing:      #111111;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  transition: background-color 0.2s ease, color 0.2s ease;
}

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

/* ─── Layout Container ──────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--page-x);
}

/* ─── Header ────────────────────────────────────────────────── */
header {
  border-bottom: 1px solid var(--color-border-strong);
  position: sticky;
  top: 0;
  background: var(--color-bg);
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 52px;
}

.site-name {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

nav {
  display: flex;
  gap: 2rem;
}

nav a {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  transition: color 0.15s ease;
}

nav a:hover {
  color: var(--color-text);
}

/* ─── Theme Toggle ──────────────────────────────────────────── */
#theme-toggle {
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  transition: color 0.15s ease, border-color 0.15s ease;
  flex-shrink: 0;
}

#theme-toggle:hover {
  color: var(--color-text);
  border-color: var(--color-text);
}

/* Default (light): show moon, hide sun */
#theme-toggle .icon-sun  { display: none; }
#theme-toggle .icon-moon { display: block; }

/* Dark mode: show sun, hide moon */
[data-theme="dark"] #theme-toggle .icon-sun  { display: block; }
[data-theme="dark"] #theme-toggle .icon-moon { display: none; }

/* ─── Hero ──────────────────────────────────────────────────── */
.hero {
  padding: 5rem 0 4rem;
  border-bottom: 1px solid var(--color-border);
  text-align: center;
}

.hero-desc {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 520px;
  margin: 0 auto 3.5rem;
  line-height: 1.6;
  text-align: center;
}

.hero-stats {
  display: flex;
  gap: 0;
  border: 1px solid var(--color-border-strong);
  width: fit-content;
  margin: 0 auto;
}

.stat-block {
  padding: 1.25rem 2.5rem;
  text-align: center;
}

.stat-block + .stat-block {
  border-left: 1px solid var(--color-border-strong);
}

.stat-number {
  font-family: var(--font-mono);
  font-size: 2.75rem;
  font-weight: 400;
  line-height: 1;
  display: block;
  margin-bottom: 0.35rem;
}

.stat-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  display: block;
}

/* ─── Quest Sections ────────────────────────────────────────── */
.quest-section {
  padding: 3rem 0;
  border-bottom: 1px solid var(--color-border);
}

.quest-section:last-of-type {
  border-bottom: none;
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 0;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-border-strong);
}

.section-title {
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
}

.section-count {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* ─── Quest Rows ────────────────────────────────────────────── */
.quest-list {
  display: flex;
  flex-direction: column;
}

.quest-row {
  display: grid;
  grid-template-columns: 20px 100px 1fr 120px;
  align-items: start;
  gap: 0 1.25rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--color-border);
  transition: background-color 0.1s ease;
}

.quest-row:last-child {
  border-bottom: none;
}

.quest-row:hover {
  background-color: var(--color-surface);
  margin: 0 -1rem;
  padding-left: 1rem;
  padding-right: 1rem;
}

/* Indicator */
.quest-indicator {
  display: flex;
  align-items: center;
  padding-top: 0.2rem;
}

.status-dot {
  display: block;
  width: 8px;
  height: 8px;
  flex-shrink: 0;
}

.status-dot--achieved {
  background-color: var(--color-achieved);
}

.status-dot--ongoing {
  background-color: var(--color-ongoing);
  border: 1.5px solid var(--color-text-mid);
}

/* Category */
.quest-category {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-text-muted);
  padding-top: 0.125rem;
}

/* Body */
.quest-body {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.quest-name {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.3;
}

.quest-scope {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
}

.quest-note {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  font-style: italic;
  display: block;
}

/* Rank */
.quest-rank-col {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.3rem;
}

.rank-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: -0.01em;
  padding: 0.15rem 0.45rem;
  border: 1px solid;
}

.rank-label--achieved {
  color: var(--color-text);
  border-color: var(--color-text);
  background: transparent;
}

.rank-label--ongoing {
  color: var(--color-text-muted);
  border-color: var(--color-border);
  background: transparent;
}

.quest-link {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.quest-link:hover {
  color: var(--color-text);
}

/* ─── Footer ────────────────────────────────────────────────── */
footer {
  margin-top: auto;
  border-top: 1px solid var(--color-border);
  padding: 1.5rem 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-name {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.footer-note {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* ─── Responsive ────────────────────────────────────────────── */

/* Large monitors: a little more breathing room */
@media (min-width: 1280px) {
  :root {
    --page-x: 4rem;
  }

  .hero {
    padding: 6rem 0 5rem;
  }

  .stat-number {
    font-size: 3.25rem;
  }
}

/* Tablet / small laptop */
@media (max-width: 900px) {
  .quest-row {
    grid-template-columns: 20px 80px 1fr 110px;
  }
}

/* Large phone / small tablet */
@media (max-width: 700px) {
  .hero {
    padding: 2.5rem 0 2rem;
  }

  .hero-desc {
    font-size: 0.9375rem;
    margin-bottom: 2.5rem;
  }

  .hero-stats {
    width: 100%;
  }

  .stat-block {
    flex: 1;
    padding: 1rem 0.75rem;
  }

  .stat-number {
    font-size: 2rem;
  }

  /* Quest rows: collapse to 2-col stacked layout */
  .quest-row {
    grid-template-columns: 20px 1fr;
    grid-template-rows: auto auto auto;
    gap: 0.15rem 0.75rem;
    padding: 0.9rem 0;
  }

  .quest-indicator {
    grid-row: 1;
    grid-column: 1;
    padding-top: 0.15rem;
  }

  .quest-category {
    grid-row: 1;
    grid-column: 2;
  }

  .quest-body {
    grid-row: 2;
    grid-column: 2;
  }

  .quest-rank-col {
    grid-row: 3;
    grid-column: 2;
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.2rem;
  }

  nav {
    gap: 1.25rem;
  }

  .quest-section {
    padding: 2rem 0;
  }
}

/* Standard phones */
@media (max-width: 480px) {
  :root {
    --page-x: 1rem;
  }

  .header-inner {
    height: 46px;
  }

  .site-name {
    font-size: 0.8125rem;
  }

  nav a {
    font-size: 0.75rem;
    letter-spacing: 0.02em;
  }

  nav {
    gap: 1rem;
  }

  /* Disable the negative-margin hover trick — causes scroll on mobile */
  .quest-row:hover {
    margin: 0;
    padding-left: 0;
    padding-right: 0;
  }

  .stat-number {
    font-size: 1.75rem;
  }

  .stat-label {
    font-size: 0.625rem;
  }

  .stat-block {
    padding: 0.875rem 0.5rem;
  }

  .quest-name {
    font-size: 0.875rem;
  }
}

/* Small phones (iPhone SE, Galaxy A series, etc.) */
@media (max-width: 390px) {
  /* Hide nav links — page is one scroll, toggle stays visible */
  nav {
    display: none;
  }

  .site-name {
    font-size: 0.8rem;
  }

  .hero {
    padding: 2rem 0 1.75rem;
  }

  .hero-desc {
    font-size: 0.875rem;
    margin-bottom: 2rem;
  }
}