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

:root {
  --black: #0a0a0a;
  --white: #ffffff;
  --yellow: #f5e642;
  --purple: #7c3aed;
  --purple-light: #f0e9ff;
  --green: #aaedbb;
  --red: #ffb3b3;
  --gray: #f4f4f4;
  --gray-mid: #ddd;
  --shadow: 4px 4px 0 var(--black);
  --shadow-sm: 3px 3px 0 var(--black);
  --shadow-lg: 6px 6px 0 var(--black);
  --radius: 14px;
  --radius-pill: 999px;
}

body {
  min-height: 100vh;
  background: #6d28d9;
  font-family: 'DM Mono', monospace;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.5rem 1rem 3rem;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(245,230,66,0.06) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(255,255,255,0.04) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.shell {
  width: 100%;
  max-width: 480px;
  position: relative;
  z-index: 1;
}

.top-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 1.25rem;
}

.back-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-pill);
  border: 2.5px solid rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.1);
  color: var(--white);
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: background 0.15s;
}

.back-btn:hover { background: rgba(255,255,255,0.2); }

.page-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 26px;
  font-weight: 400;
  color: var(--yellow);
  letter-spacing: 0.05em;
}

.legend {
  display: flex;
  gap: 16px;
  margin-bottom: 1rem;
  padding: 0.75rem 1rem;
  background: rgba(0,0,0,0.2);
  border-radius: var(--radius-pill);
  border: 1.5px solid rgba(255,255,255,0.1);
  flex-wrap: wrap;
}

.legend-item { display: flex; align-items: center; gap: 6px; font-size: 11px; color: rgba(255,255,255,0.6); letter-spacing: 0.06em; }

.legend-line {
  width: 24px;
  height: 4px;
  border-radius: 2px;
  flex-shrink: 0;
  display: inline-block;
}

.legend-line.easy-won     { background: #4ade80; }
.legend-line.easy-partial { background: repeating-linear-gradient(90deg, #4ade80 0px, #4ade80 4px, transparent 4px, transparent 7px); }
.legend-line.hard-won     { background: #f87171; }
.legend-line.hard-partial { background: repeating-linear-gradient(90deg, #f87171 0px, #f87171 4px, transparent 4px, transparent 7px); }
.legend-line.easy-none    { background: #555; }

.months { display: flex; flex-direction: column; gap: 16px; }

.month-block {
  background: var(--white);
  border: 3px solid var(--black);
  border-radius: 20px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.month-header {
  background: var(--black);
  padding: 0.75rem 1.25rem;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 16px;
  color: var(--yellow);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.month-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  padding: 1rem;
}

.day-label-head {
  text-align: center;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #aaa;
  text-transform: uppercase;
  padding-bottom: 4px;
}

.day-cell {
  aspect-ratio: 1;
  border-radius: 10px;
  border: 2px solid var(--gray-mid);
  background: var(--gray);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: box-shadow 0.1s, transform 0.1s, border-color 0.15s;
  text-decoration: none;
}

.day-cell:hover { box-shadow: var(--shadow-sm); transform: translate(-1px,-1px); border-color: var(--black); }
.day-cell.empty   { background: transparent; border-color: transparent; cursor: default; pointer-events: none; }
.day-cell.future  { opacity: 0.3; cursor: not-allowed; pointer-events: none; }
.day-cell.today   { border: 2.5px solid var(--purple); background: var(--purple-light); }

.day-num-cell { font-size: 12px; font-weight: 700; color: var(--black); line-height: 1; }

.day-lines {
  display: flex;
  flex-direction: column;
  gap: 3px;
  width: 70%;
  margin-top: 4px;
}

.day-line {
  height: 4px;
  border-radius: 2px;
  width: 100%;
  display: block;
}

.day-line.easy-none    { background: #ddd; }
.day-line.easy-partial { background: repeating-linear-gradient(90deg, #4ade80 0px, #4ade80 3px, transparent 3px, transparent 6px); }
.day-line.easy-won     { background: #4ade80; }
.day-line.easy-lost    { background: repeating-linear-gradient(90deg, #4ade80 0px, #4ade80 3px, transparent 3px, transparent 6px); }
.day-line.hard-none    { background: #ddd; }
.day-line.hard-partial { background: repeating-linear-gradient(90deg, #f87171 0px, #f87171 3px, transparent 3px, transparent 6px); }
.day-line.hard-won     { background: #f87171; }
.day-line.hard-lost    { background: repeating-linear-gradient(90deg, #f87171 0px, #f87171 3px, transparent 3px, transparent 6px); }

/* ── footer ── */
.site-footer {
  width: 100%;
  max-width: 480px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0 2rem;
  position: relative;
  z-index: 1;
  margin-top: 1rem;
}

.footer-copy {
  font-size: 11px;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.06em;
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-link {
  font-size: 11px;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: color 0.15s;
}

.footer-link:hover { color: rgba(255,255,255,0.8); }

.footer-btn {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--black);
  background: var(--yellow);
  border: 2px solid var(--black);
  border-radius: var(--radius-pill);
  padding: 4px 14px;
  text-decoration: none;
  box-shadow: 2px 2px 0 var(--black);
  transition: box-shadow 0.1s, transform 0.1s;
}

.footer-btn:hover { box-shadow: 3px 3px 0 var(--black); transform: translate(-1px,-1px); }

/* ── mobile ── */
@media (max-width: 480px) {
  body { padding: 1rem 0.75rem 2rem; }
  .month-grid { gap: 4px; padding: 0.75rem; }
}