/* 工藤スポーツ HP — global tokens & responsive CSS */
:root {
  --ks-bg: #ffffff;
  --ks-paper: #faf9f6;
  --ks-ink: #0a0a0a;
  --ks-soft: #4a4a4a;
  --ks-mute: #8a8a8a;
  --ks-line: #e8e6e1;
  --ks-accent: oklch(0.55 0.18 250);        /* tweakable: structural */
  --ks-accent-red: oklch(0.58 0.20 22);     /* fixed: brand red */
  --ks-accent-blue: oklch(0.55 0.18 250);   /* fixed: brand blue */
  --ks-pad: 56px;
}

[data-theme="dark"] {
  --ks-bg: #0c0c0d;
  --ks-paper: #131315;
  --ks-ink: #f5f4f0;
  --ks-soft: #b8b6b0;
  --ks-mute: #6e6c66;
  --ks-line: #232325;
  --ks-accent-red: oklch(0.68 0.22 22);    /* slightly brighter on dark */
  --ks-accent-blue: oklch(0.72 0.18 250);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: "Helvetica Neue", "游ゴシック体", "Yu Gothic", YuGothic, "Noto Sans JP", Helvetica, Arial, sans-serif;
  color: var(--ks-ink);
  background: var(--ks-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

html { scroll-behavior: smooth; }

/* anchor scroll offset for sticky nav */
section[id], div[id="contact"] { scroll-margin-top: 100px; }
@media (max-width: 1100px) { section[id] { scroll-margin-top: 150px; } }
@media (max-width: 768px) { section[id] { scroll-margin-top: 80px; } }

img { display: block; max-width: 100%; }

.ks-shell {
  background: var(--ks-bg);
  color: var(--ks-ink);
  width: 100%;
  min-height: 100%;
  position: relative;
}

/* brand stripe — red×blue at very top of the page */
.ks-shell::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(to right,
    var(--ks-accent-red) 0%,
    var(--ks-accent-red) 50%,
    var(--ks-accent-blue) 50%,
    var(--ks-accent-blue) 100%);
  z-index: 100;
  pointer-events: none;
}

/* bicolor mark before section labels */
.ks-section-label::before {
  content: '';
  display: inline-block;
  width: 18px;
  height: 6px;
  margin-right: 14px;
  vertical-align: 2px;
  background: linear-gradient(to right,
    var(--ks-accent-red) 0%,
    var(--ks-accent-red) 50%,
    var(--ks-accent-blue) 50%,
    var(--ks-accent-blue) 100%);
}

/* placeholder */
.ks-placeholder {
  position: relative;
  background:
    repeating-linear-gradient(135deg, color-mix(in oklab, var(--ks-ink) 6%, transparent) 0 1px, transparent 1px 10px),
    var(--ks-paper);
  border: 1px solid var(--ks-line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "SF Mono", ui-monospace, Menlo, Consolas, monospace;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ks-mute);
  text-transform: uppercase;
}

/* hover for nav links (inline colors require !important to override) */
.ks-navlinks a:hover,
.ks-nav-contact:hover { color: var(--ks-accent) !important; }
.ks-nav-shop:hover { background: var(--ks-accent) !important; border-color: var(--ks-accent) !important; }

/* group / instagram cards */
.ks-group-card { cursor: pointer; }
.ks-group-card:hover { background: var(--ks-paper) !important; }
.ks-group-card:hover .ks-group-card-name,
.ks-group-card:hover [data-gname] { color: var(--ks-accent) !important; }
.ks-group-card:hover span:last-child { transform: translate(2px, -2px); }

/* shop band */
.ks-shop-btn:hover { background: var(--ks-accent) !important; color: #fff !important; }

/* hero CTA buttons */
.ks-hero-btn-primary:hover { background: var(--ks-accent) !important; border-color: var(--ks-accent) !important; }
.ks-hero-btn-primary span:last-child { transition: transform .25s ease; }
.ks-hero-btn-primary:hover span:last-child { transform: translate(2px, -2px); }
.ks-hero-btn:hover { border-color: var(--ks-ink) !important; color: var(--ks-accent) !important; }

/* tappable phone number */
.ks-tel-link:hover { opacity: 0.78; }

/* contact email button */
.ks-email-btn:hover { background: var(--ks-ink) !important; color: var(--ks-bg) !important; }

/* contact form */
.ks-input:focus { border-color: var(--ks-ink) !important; }
.ks-input::placeholder { color: var(--ks-mute); opacity: 0.7; }
.ks-form-submit:hover { background: var(--ks-accent-red) !important; border-color: var(--ks-accent-red) !important; }
.ks-back:hover { color: var(--ks-ink) !important; }

/* team box buttons */
.ks-team-btn:hover { background: var(--ks-bg) !important; color: var(--ks-ink) !important; }

/* ──────────────────────────────────────
   RESPONSIVE — desktop / tablet / mobile
   ────────────────────────────────────── */

/* utility bar wraps on very narrow widths */
.ks-utility { flex-wrap: wrap; row-gap: 4px; }

/* TABLET LANDSCAPE — nav links wrap to row 2 */
@media (max-width: 1100px) {
  .ks-nav {
    grid-template-columns: auto 1fr auto !important;
    grid-template-rows: auto auto !important;
    column-gap: 24px !important;
  }
  .ks-nav > :first-child { grid-row: 1 !important; grid-column: 1 !important; }
  .ks-nav-actions { grid-row: 1 !important; grid-column: 3 !important; }
  .ks-navlinks {
    grid-row: 2 !important;
    grid-column: 1 / -1 !important;
    justify-self: center !important;
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--ks-line);
    width: 100%;
    justify-content: center;
    gap: 22px !important;
  }
}

/* TABLET PORTRAIT — major content stacks */
@media (max-width: 960px) {
  :root { --ks-pad: 32px; }

  .ks-hero-foot { flex-wrap: wrap; gap: 16px 24px; justify-content: center; }
  .ks-biz-grid { grid-template-columns: 1fr !important; }
  .ks-biz-cell-wide { flex-direction: column !important; align-items: flex-start !important; }
  .ks-cat-grid { grid-template-columns: repeat(2, 1fr) !important; }
  .ks-access-grid { grid-template-columns: 1fr !important; }
  .ks-access-grid > div:first-child {
    border-right: none !important;
    border-bottom: 1px solid var(--ks-line);
  }
  .ks-foot { grid-template-columns: 1fr 1fr !important; }
  .ks-profile-th { width: 130px !important; font-size: 11px !important; }
  .ks-nav-logo-img { width: 48px !important; }
  .ks-foot-logo-img { width: 64px !important; }
  .ks-shop-inner { grid-template-columns: 1fr !important; gap: 28px !important; }
}

/* MOBILE — single column everywhere */
@media (max-width: 768px) {
  .ks-navlinks { display: none !important; }
  .ks-nav {
    grid-template-columns: auto 1fr auto !important;
    column-gap: 12px !important;
  }
}

@media (max-width: 720px) {
  .ks-hero-title {
    font-size: clamp(22px, 6.4vw, 34px) !important;
    line-height: 1.55 !important;
    letter-spacing: 0.02em !important;
    max-width: 100% !important;
    word-break: normal !important;
    overflow-wrap: anywhere !important;
    line-break: strict !important;
  }
  .ks-hero-logo {
    width: clamp(180px, 50vw, 280px) !important;
    margin-bottom: clamp(24px, 4vw, 40px) !important;
  }
  .ks-utility {
    font-size: 9px !important;
    letter-spacing: 0.18em !important;
  }
  .ks-foot-bottom { font-size: 9px !important; letter-spacing: 0.18em !important; }
}

@media (max-width: 600px) {
  :root { --ks-pad: 22px; }

  .ks-foot { grid-template-columns: 1fr !important; }
  .ks-cat-grid { grid-template-columns: 1fr !important; }
  .ks-pills { gap: 8px !important; }
  .ks-nav-logo-img { width: 44px !important; }

  /* FOLLOW: horizontal scroll on small screens to keep the row feel */
  .ks-group-grid {
    grid-template-columns: none !important;
    display: flex !important;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    border-left: 0 !important;
    border-top: 1px solid var(--ks-line) !important;
    border-bottom: 1px solid var(--ks-line);
    scrollbar-width: thin;
  }
  .ks-group-card {
    flex: 0 0 78%;
    min-width: 240px;
    scroll-snap-align: start;
    border-bottom: 0 !important;
  }

  .ks-nav-logo-text { font-size: 15px !important; }
  .ks-nav-logo-sub { font-size: 9px !important; }
  .ks-nav-shop {
    font-size: 10px !important;
    padding: 10px 14px !important;
    letter-spacing: 0.16em !important;
  }
  .ks-nav-contact { display: none !important; }

  /* profile rows stack th/td */
  .ks-profile-th {
    display: block !important;
    width: auto !important;
    padding-bottom: 4px !important;
  }
  .ks-profile-td {
    display: block !important;
    padding-top: 0 !important;
    padding-bottom: 20px !important;
  }
}

@media (max-width: 480px) {
  :root { --ks-pad: 18px; }

  .ks-access-grid > div:first-child {
    grid-template-columns: 1fr !important;
    row-gap: 24px !important;
  }
  .ks-foot-bottom { flex-direction: column; align-items: center; gap: 6px; }
  .ks-utility {
    justify-content: center !important;
    text-align: center;
  }

  .ks-nav-logo-img { width: 38px !important; }
  .ks-nav-logo-text { font-size: 13px !important; letter-spacing: 0.12em !important; }
  .ks-nav-logo-sub { font-size: 8px !important; letter-spacing: 0.18em !important; }
  .ks-nav-shop {
    font-size: 9px !important;
    padding: 8px 12px !important;
    letter-spacing: 0.14em !important;
  }
  .ks-nav { column-gap: 12px !important; }
  .ks-nav-actions { gap: 8px !important; }
}

@media (max-width: 360px) {
  .ks-nav-logo > div { display: none; }  /* hide logo text on tiny screens */
  .ks-nav-logo-img { width: 36px !important; }
}


/* ──────────────────────────────────────
   MOBILE NAV MENU (hamburger + overlay)
   injected by js/mobile-nav.js — shown only on small screens
   ────────────────────────────────────── */
.ks-burger { display: none; }

@media (max-width: 768px) {
  .ks-burger {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    align-items: stretch;
    gap: 5px;
    width: 46px;
    height: 44px;
    padding: 0 11px;
    background: transparent;
    border: 1px solid var(--ks-line);
    cursor: pointer;
    flex: none;
    -webkit-tap-highlight-color: transparent;
  }
  .ks-burger span {
    display: block;
    height: 1.5px;
    width: 100%;
    background: var(--ks-ink);
    transition: transform .28s ease, opacity .2s ease;
  }
  .ks-burger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  .ks-burger.open span:nth-child(2) { opacity: 0; }
  .ks-burger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
  /* keep the ONLINE SHOP CTA a comfortable tap size */
  .ks-nav-shop { min-height: 44px; }
}

.ks-mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: var(--ks-bg);
  color: var(--ks-ink);
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity .26s ease, visibility .26s, transform .26s ease;
}
.ks-mobile-menu.open { opacity: 1; visibility: visible; transform: none; }

.ks-mm-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px var(--ks-pad);
  border-bottom: 1px solid var(--ks-line);
}
.ks-mm-title {
  font-size: 16px;
  letter-spacing: 0.18em;
  font-weight: 600;
  color: var(--ks-ink);
}
.ks-mm-close {
  width: 46px;
  height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  line-height: 1;
  color: var(--ks-ink);
  background: transparent;
  border: 1px solid var(--ks-line);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.ks-mm-list {
  display: flex;
  flex-direction: column;
  padding: 8px var(--ks-pad) 0;
  flex: 1;
  overflow-y: auto;
}
.ks-mm-link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 2px;
  text-decoration: none;
  color: var(--ks-ink);
  border-bottom: 1px solid var(--ks-line);
}
.ks-mm-link:active { background: var(--ks-paper); }
.ks-mm-jp {
  font-size: 19px;
  letter-spacing: 0.12em;
  font-weight: 500;
}
.ks-mm-en {
  font-family: "SF Mono", ui-monospace, Menlo, monospace;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--ks-mute);
}
.ks-mm-foot {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 28px var(--ks-pad) calc(28px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--ks-line);
}
.ks-mm-shop {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 24px;
  background: var(--ks-ink);
  color: var(--ks-bg);
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 0.22em;
  font-weight: 600;
}
.ks-mm-tel {
  text-align: center;
  font-family: "SF Mono", ui-monospace, Menlo, monospace;
  font-size: 20px;
  letter-spacing: 0.06em;
  color: var(--ks-accent-red);
  text-decoration: none;
  padding: 6px;
}