/* ==========================================================================
   global.css — typography, container, utility classes, buttons base
   ========================================================================== */

html { font-size: 16px; }

body {
  font-family: var(--font-base);
  font-size: var(--text-body);
  line-height: 1.8;                 /* JP-first baseline */
  color: var(--color-text-primary);
  background: var(--color-bg-default);
  font-feature-settings: "palt" 1;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-base);
  color: var(--color-text-primary);
  line-height: 1.3;
  word-break: keep-all;
  overflow-wrap: break-word;
  line-break: strict;
}

h1 { font-size: var(--text-h1); font-weight: 700; letter-spacing: -0.01em; line-height: 1.25; }
h2 { font-size: var(--text-h2); font-weight: 700; letter-spacing: -0.005em; line-height: 1.3; }
h3 { font-size: var(--text-h3); font-weight: 700; line-height: 1.4; }
h4 { font-size: var(--text-h4); font-weight: 500; line-height: 1.5; }

p {
  font-size: var(--text-body);
  line-height: 1.8;
  color: var(--color-text-primary);
  word-break: normal;
  overflow-wrap: break-word;
  line-break: strict;
}

a {
  color: inherit;
  transition: color var(--dur-fast) var(--ease-standard);
}

/* Numeric / date / price: disable palt, enable tabular */
.numeric, .date, .price {
  font-feature-settings: "palt" 0, "tnum" 1;
  font-variant-numeric: tabular-nums;
}

/* ==========================================================================
   Container & section
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--gutter-desktop);
}
.container--narrow { max-width: var(--content-narrow); }
.container--wide   { max-width: var(--content-wide); }

@media (max-width: 767px) {
  .container { padding-inline: var(--gutter-mobile); }
}

.section {
  padding-block: var(--section-py-desktop);
}
@media (max-width: 767px) {
  .section { padding-block: var(--section-py-mobile); }
}
.section--subtle { background: var(--color-bg-subtle); }
.section--dark   { background: var(--color-bg-dark); color: var(--color-text-on-dark); }
.section--red    { background: var(--color-brand-red); color: var(--color-text-on-red); }

/* ==========================================================================
   Utilities
   ========================================================================== */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  top: -100px; left: 8px;
  z-index: 1000;
  background: var(--color-text-primary);
  color: var(--color-bg-default);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 14px;
  transition: top var(--dur-fast) var(--ease-standard);
}
.skip-link:focus { top: 8px; }

.text-center { text-align: center; }
.text-red { color: var(--color-brand-red); }
.text-secondary { color: var(--color-text-secondary); }
.text-tertiary { color: var(--color-text-tertiary); }

.stack > * + * { margin-top: var(--space-4); }
.stack-lg > * + * { margin-top: var(--space-7); }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 28px;
  font-family: var(--font-base);
  font-size: var(--text-button);
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1;
  white-space: nowrap;
  border-radius: var(--radius-md);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition:
    background-color var(--dur-fast) var(--ease-standard),
    color var(--dur-fast) var(--ease-standard),
    border-color var(--dur-fast) var(--ease-standard),
    transform var(--dur-fast) var(--ease-standard),
    box-shadow var(--dur-fast) var(--ease-standard);
  user-select: none;
}
.btn:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

.btn-primary {
  background: var(--color-brand-red);
  color: var(--color-text-on-red);
  border-color: var(--color-brand-red);
}
.btn-primary:hover { background: var(--color-brand-red-hover); border-color: var(--color-brand-red-hover); transform: translateY(-1px); }
.btn-primary:active { background: var(--color-brand-red-active); border-color: var(--color-brand-red-active); transform: translateY(0); }
.btn-primary:disabled { background: var(--color-text-disabled); border-color: var(--color-text-disabled); cursor: not-allowed; transform: none; }

.btn-secondary {
  background: transparent;
  color: var(--color-text-primary);
  border-color: var(--color-text-primary);
}
.btn-secondary:hover { background: var(--color-text-primary); color: var(--color-bg-default); transform: translateY(-1px); }
.btn-secondary:active { background: #000; transform: translateY(0); }

.btn-secondary--onhero {
  color: #FFFFFF;
  border-color: #FFFFFF;
}
.btn-secondary--onhero:hover {
  background: #FFFFFF;
  color: var(--color-text-primary);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-primary);
  border-color: transparent;
  padding: 0 8px;
  height: auto;
}
.btn-ghost:hover { color: var(--color-brand-red); }

.btn-onred {
  background: #FFFFFF;
  color: var(--color-brand-red);
  border-color: #FFFFFF;
}
.btn-onred:hover { background: rgba(255,255,255,0.9); }

/* Sizes */
.btn-lg {
  height: 56px;
  padding: 0 40px;
  font-size: 16px;
}
.btn-sm {
  height: 36px;
  padding: 0 20px;
  font-size: 14px;
}

/* Arrow icon inside button shifts on hover */
.btn .icon-arrow {
  transition: transform var(--dur-fast) var(--ease-standard);
}
.btn:hover .icon-arrow {
  transform: translateX(4px);
}

/* Focus style global */
*:focus { outline: none; }
*:focus-visible {
  outline: 3px solid var(--color-brand-red);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}
.section--dark *:focus-visible,
.hero *:focus-visible,
.section--red *:focus-visible,
.site-footer *:focus-visible {
  outline-color: #FFFFFF;
}