/* ============================================================
   DQSIS Experiments — Shared Stylesheet
   dqsis.com · Life 2.0
   ============================================================ */

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

/* ── Design tokens ── */
:root {
  --stone:       #F7F4EE;
  --ink:         #1C2B3A;
  --olive:       #8A9070;
  --terracotta:  #C4714A;
  --sand:        #E2DDD4;
  --ghost:       #EAE6DE;
  --mid:         #5A6670;
  --white:       #FFFFFF;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Inter', system-ui, sans-serif;

  --radius:  6px;
  --page-w:  680px;
  --gap:     1rem;
}

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,700;1,400&family=Inter:wght@300;400;500;600&display=swap');

/* ── Base ── */
html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--stone);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  min-height: 100vh;
}

/* ── Page wrapper ── */
.page {
  max-width: var(--page-w);
  margin: 0 auto;
  padding: 0 2rem 6rem;
}

/* ── Site header (logo + nav) ── */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 0 1.5rem;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--sand);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
}

.site-logo img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  border-radius: 6px;
}

.site-logo-name {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
}

.site-logo-sub {
  font-size: 0.65rem;
  font-weight: 400;
  color: var(--olive);
  letter-spacing: 0.08em;
  display: block;
  line-height: 1.2;
}

.site-nav {
  font-size: 0.72rem;
  color: var(--olive);
  letter-spacing: 0.05em;
}

/* ── Page header ── */
.header {
  margin-bottom: 3rem;
}

.eyebrow {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--olive);
  margin-bottom: 0.75rem;
}

.title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--ink);
  margin-bottom: 1rem;
}

.title em {
  font-style: italic;
  color: var(--terracotta);
}

.subtitle {
  font-size: 0.95rem;
  color: var(--mid);
  max-width: 480px;
  line-height: 1.7;
  border-left: 2px solid var(--terracotta);
  padding-left: 1rem;
  margin-top: 1.25rem;
}

/* ── Section label ── */
.section-label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--olive);
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--sand);
}

/* ── Progress bar ── */
.progress-wrap {
  margin: 0 0 3rem;
}

.progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--olive);
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.progress-bar-bg {
  height: 3px;
  background: var(--sand);
  border-radius: 2px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--terracotta);
  border-radius: 2px;
  width: 0%;
  transition: width 0.4s ease;
}

/* ── Card grid ── */
.card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
  margin-bottom: 2.5rem;
}

@media (max-width: 520px) {
  .card-grid { grid-template-columns: 1fr; }
}

.card {
  background: var(--white);
  border: 1px solid var(--sand);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
}

.card h3 {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.3rem;
}

.card p {
  font-size: 0.8rem;
  color: var(--mid);
  line-height: 1.55;
}

/* ── Checklist ── */
.checklist {
  list-style: none;
  margin-bottom: 2rem;
}

.checklist-item {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--sand);
}

.checklist-item:first-child {
  border-top: 1px solid var(--sand);
}

.checklist-item.done .item-prompt { opacity: 0.45; }
.checklist-item.done .item-note   { opacity: 0.35; }
.checklist-item.done .item-ghost  { color: var(--sand); }

/* Checkbox */
.item-check {
  flex-shrink: 0;
  margin-top: 0.15rem;
  width: 1.1rem;
  height: 1.1rem;
  appearance: none;
  -webkit-appearance: none;
  border: 1.5px solid var(--sand);
  border-radius: 3px;
  cursor: pointer;
  background: var(--white);
  transition: all 0.15s;
  position: relative;
}

.item-check:checked {
  background: var(--terracotta);
  border-color: var(--terracotta);
}

.item-check:checked::after {
  content: '';
  position: absolute;
  left: 3px;
  top: 0px;
  width: 5px;
  height: 8px;
  border: 2px solid var(--white);
  border-top: none;
  border-left: none;
  transform: rotate(45deg);
}

.item-check:focus {
  outline: 2px solid var(--terracotta);
  outline-offset: 2px;
}

/* Ghost number */
.item-ghost {
  flex-shrink: 0;
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--ghost);
  line-height: 1;
  width: 2.4rem;
  text-align: right;
  transition: color 0.3s;
  user-select: none;
}

/* Item content */
.item-content { flex: 1; padding-top: 0.1rem; }

.item-prompt {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
  transition: opacity 0.3s;
}

.item-note {
  font-size: 0.8rem;
  color: var(--mid);
  margin-top: 0.2rem;
  font-style: italic;
  line-height: 1.5;
  transition: opacity 0.3s;
}

/* ── Divider ── */
hr {
  border: none;
  border-top: 1px solid var(--sand);
  margin: 2rem 0;
}

/* ── Footer ── */
.site-footer {
  text-align: center;
  font-size: 0.7rem;
  color: var(--sand);
  letter-spacing: 0.1em;
  margin-top: 3rem;
  font-weight: 500;
  text-transform: uppercase;
  padding-top: 1.5rem;
  border-top: 1px solid var(--ghost);
}

/* ── Utilities ── */
.text-olive      { color: var(--olive); }
.text-terracotta { color: var(--terracotta); }
.text-mid        { color: var(--mid); }
.mt-1  { margin-top: 0.5rem; }
.mt-2  { margin-top: 1rem; }
.mt-3  { margin-top: 1.5rem; }
.mb-1  { margin-bottom: 0.5rem; }
.mb-2  { margin-bottom: 1rem; }
.mb-3  { margin-bottom: 1.5rem; }

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}

/* ── Mobile ── */
@media (max-width: 600px) {
  .page { padding: 0 1.25rem 4rem; }
  .site-header { padding: 1.25rem 0; }
}