/* =========================================================
   Tongtji Online — Editorial Design System (Stitch-adopted)
   Noto Serif headlines · Manrope body · forest green palette
   ========================================================= */

.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 24;
  vertical-align: middle;
}
.material-symbols-outlined.fill {
  font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

body {
  font-family: 'Manrope', sans-serif;
  background-color: #f7faf4;
  color: #191d19;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, .serif {
  font-family: 'Noto Serif', serif;
  letter-spacing: -0.01em;
}

.editorial-shadow {
  box-shadow: 0 20px 40px rgba(25, 29, 25, 0.06);
}

.tonal-shift-bg {
  background: linear-gradient(to bottom, #ffffff, #f2f5ee);
}

/* Accessible focus — WCAG AA */
a:focus-visible, button:focus-visible, input:focus-visible,
select:focus-visible, textarea:focus-visible, [role="button"]:focus-visible {
  outline: 3px solid #154212;
  outline-offset: 2px;
  border-radius: 4px;
}

/* Editorial numeral style */
.numeral {
  font-family: 'Noto Serif', serif;
  font-style: italic;
  font-weight: 300;
}

/* Reusable primary CTA with gradient */
.btn-editorial {
  background-image: linear-gradient(to right, #154212, #2d5a27);
  color: #ffffff;
  padding: 1rem 1.5rem;
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border-radius: 0.25rem;
  box-shadow: 0 10px 30px rgba(21, 66, 18, 0.2);
  transition: opacity .2s, transform .15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}
.btn-editorial:hover { opacity: 0.92; }
.btn-editorial:active { transform: scale(0.98); }

@media (max-width: 640px) {
  .btn-editorial {
    padding: 0.875rem 1rem;
    font-size: 0.6875rem;
    letter-spacing: 0.16em;
    gap: 0.375rem;
  }
}

/* Skip link */
.skip-link {
  position: absolute; left: -9999px; top: 0.75rem;
  background: #154212; color: #fff; padding: 0.5rem 1rem;
  border-radius: 4px; font-weight: 600; z-index: 100;
}
.skip-link:focus { left: 0.75rem; }

/* Prose reset for product descriptions */
.prose-editorial p {
  color: #42493e;
  line-height: 1.75;
  font-size: 1.0625rem;
  margin-bottom: 1.25rem;
}

/* Demo chip (concept-only indicator) */
.demo-chip {
  display: inline-flex; align-items: center; gap: 0.375rem;
  font-size: 0.625rem; font-weight: 700;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: #42493e;
  background: #ecefe8;
  border: 1px dashed #c2c9bb;
  padding: 0.25rem 0.625rem;
  border-radius: 9999px;
}

/* Hairline divider — editorial style */
.hairline {
  height: 1px;
  background: rgba(194, 201, 187, 0.4);
  border: 0;
}

/* Checkout progress */
[aria-label="Progres Checkout"] {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
}

[aria-label="Progres Checkout"] > li {
  min-width: 0;
  padding-top: 0.625rem;
}

[aria-label="Progres Checkout"] .numeral {
  font-size: 1.25rem;
  line-height: 1;
}

[aria-label="Progres Checkout"] p {
  margin-top: 0.375rem;
  font-size: 0.625rem;
  letter-spacing: 0.16em;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

@media (min-width: 640px) {
  [aria-label="Progres Checkout"] {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.75rem;
  }

  [aria-label="Progres Checkout"] > li {
    padding-top: 0.75rem;
  }

  [aria-label="Progres Checkout"] .numeral {
    font-size: 1.5rem;
  }

  [aria-label="Progres Checkout"] p {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* Spinner */
.tea-spinner {
  width: 48px; height: 48px;
  border: 3px solid #e0e3dd;
  border-top-color: #154212;
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }