/* =========================================================
   NAGOMI WAVE — 「島のラジオ局」 Island Radio Station
   Shared styles for index.html / about.html / contact.html
   ========================================================= */
:root{
  --paper:#11161b;      /* night sea — deep charcoal navy */
  --paper-2:#161d24;
  --card:#1b232b;
  --ink:#f1e8d8;        /* logo cream */
  --ink-2:#c4b8a5;
  --mist:#8d8778;
  --line:rgba(241,232,216,.12);
  --sun:#e8873a;        /* sunset orange (logo) */
  --sun-soft:#f2a65a;
  --sea:#17465a;        /* sea band background */
  --sea-deep:#0b2230;
  --tide:#84c3d4;       /* sea blue for text on dark */
  --dark:#1a1410;       /* text on cream chips */
  --wordmark:'Fredoka',sans-serif;
  --r:#c8372d; --y:#e8b22c; --g:#2f8a4a;   /* reggae accent */
  --radius:14px;
  --max:1180px;
  --display:'Zen Maru Gothic',sans-serif;
  --body:'Zen Kaku Gothic New',sans-serif;
  --mono:'DM Mono',ui-monospace,monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{
  background:var(--paper);color:var(--ink);font-family:var(--body);
  line-height:1.8;-webkit-font-smoothing:antialiased;overflow-x:hidden;
  /* faint paper grain */
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .35 0 0 0 0 .25 0 0 0 0 .12 0 0 0 .06 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
::selection{background:var(--sun);color:#fff}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--tide);outline-offset:3px;border-radius:4px}
.wrap{width:min(var(--max),100% - 32px);margin-inline:auto}

/* reggae accent line */
.rasta{height:3px;background:linear-gradient(90deg,var(--r) 0 33.3%,var(--y) 33.3% 66.6%,var(--g) 66.6%)}

/* ---------- header ---------- */
.site-head{position:sticky;top:0;z-index:50;background:rgba(17,22,27,.88);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:border-color .3s}
.site-head.scrolled{border-bottom-color:var(--line)}
.head-in{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;flex-shrink:0}
.brand img{width:40px;height:40px;border-radius:50%}
.brand b{font-family:var(--wordmark);font-weight:600;letter-spacing:.1em;font-size:1.12rem;line-height:1.1}
.brand small{display:block;font-family:var(--mono);font-size:.6rem;letter-spacing:.18em;color:var(--mist);line-height:1.2}
.gnav{display:flex;gap:4px;align-items:center}
.gnav a{text-decoration:none;font-family:var(--mono);font-size:.74rem;letter-spacing:.14em;padding:8px 11px;border-radius:999px;color:var(--ink-2);white-space:nowrap;transition:background .2s,color .2s}
.gnav .nav-live,.menu nav .nav-live{display:inline-flex;align-items:center;gap:8px}
.gnav a:hover{background:var(--paper-2);color:var(--ink)}
.gnav a[aria-current="page"]{color:var(--sun)}
.onair{text-decoration:none;font-family:var(--mono);font-size:.74rem;letter-spacing:.14em;padding:8px 13px;border-radius:999px;white-space:nowrap;background:var(--ink);color:var(--paper);display:inline-flex;align-items:center;gap:7px}
.onair:hover{background:var(--sea-deep);color:#fff}
.dot{width:8px;height:8px;border-radius:50%;background:#ff4b3e;box-shadow:0 0 0 0 rgba(255,75,62,.6);animation:pulse 1.8s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 8px rgba(255,75,62,0)}100%{box-shadow:0 0 0 0 rgba(255,75,62,0)}}


/* ---------- type ---------- */
.kicker{font-family:var(--mono);font-size:.72rem;letter-spacing:.24em;color:var(--sun);text-transform:uppercase;display:flex;align-items:center;gap:10px}
.kicker::before{content:"";width:30px;height:3px;border-radius:2px;flex-shrink:0;background:linear-gradient(90deg,var(--r) 0 33.3%,var(--y) 33.3% 66.6%,var(--g) 66.6%)}
.sec{padding:96px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:38px;flex-wrap:wrap}
.sec-title{font-family:var(--display);font-weight:900;font-size:clamp(2rem,5vw,3.2rem);letter-spacing:.06em;line-height:1.15;margin-top:10px}
.sec-title>span:not([data-l]){display:block;font-size:.42em;letter-spacing:.2em;color:var(--mist);font-weight:700;margin-top:6px}
.lead{color:var(--ink-2);max-width:56ch}
.more{font-family:var(--mono);font-size:.76rem;letter-spacing:.16em;text-decoration:none;border-bottom:1px solid var(--ink);padding-bottom:2px;white-space:nowrap}
.more:hover{color:var(--sun);border-color:var(--sun)}

/* ---------- buttons ---------- */
.btns{display:flex;flex-wrap:wrap;gap:10px}
.btn{display:inline-flex;align-items:center;gap:8px;text-decoration:none;font-family:var(--body);font-weight:700;font-size:.86rem;letter-spacing:.06em;padding:12px 20px;border-radius:999px;border:1.5px solid var(--ink);background:transparent;color:var(--ink);cursor:pointer;transition:transform .2s,background .2s,color .2s}
.btn:hover{transform:translateY(-2px)}
.btn.solid{background:var(--ink);color:var(--paper)}
.btn.solid:hover{background:var(--sun);border-color:var(--sun)}
.btn.sun{background:var(--sun);border-color:var(--sun);color:#fff}
.btn.sun:hover{background:var(--ink);border-color:var(--ink)}
.btn svg{width:16px;height:16px}

/* ---------- wave divider ---------- */
.wave{display:block;width:100%;height:46px;color:var(--sea)}
.wave.flip{transform:scaleY(-1)}
.sea-band{background:var(--sea);color:#f3efe6}

/* ---------- footer ---------- */
.site-foot{background:#0a0e12;border-top:1px solid var(--line);color:#d9e4e6;padding:64px 0 28px}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px}
.foot-brand{display:flex;gap:14px;align-items:center}
.foot-brand img{width:64px;height:64px;border-radius:50%}
.foot-brand b{font-family:var(--wordmark);font-weight:600;font-size:1.3rem;letter-spacing:.1em;color:var(--ink)}
.foot-brand p{font-size:.8rem;color:#a9c0c6}
.foot-h{font-family:var(--mono);font-size:.7rem;letter-spacing:.22em;color:var(--sun-soft);margin-bottom:12px}
.foot-links{list-style:none;display:grid;gap:6px}
.foot-links a{text-decoration:none;font-size:.88rem;color:#d9e4e6}
.foot-links a:hover{color:#fff;text-decoration:underline}
.foot-bottom{margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;color:#8eaab1}
@media (max-width:760px){.foot-grid{grid-template-columns:1fr 1fr}.foot-grid>:first-child{grid-column:1/-1}}

/* reveal on scroll */
.rv{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}

/* =========================================================
   LANGUAGE TOGGLE — <html lang="ja|en">; mark text with data-l="ja" / data-l="en"
   ========================================================= */
html[lang="ja"] [data-l="en"],html[lang="en"] [data-l="ja"]{display:none!important}
.head-tools{display:flex;align-items:center;gap:10px;flex-shrink:0}
.lang-sw{display:inline-flex;border:1.5px solid var(--ink);border-radius:999px;padding:2px;background:var(--card)}
.lang-sw button{border:none;background:none;font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;padding:5px 10px;border-radius:999px;cursor:pointer;color:var(--ink-2)}
.lang-sw button[aria-pressed="true"]{background:var(--ink);color:var(--paper)}

/* =========================================================
   MOBILE ☰ MENU
   ========================================================= */
.burger{display:none;width:44px;height:44px;border:none;background:none;cursor:pointer;position:relative;border-radius:10px}
.burger span{position:absolute;left:11px;width:22px;height:2px;background:var(--ink);border-radius:2px;transition:transform .3s,opacity .2s,top .3s}
.burger span:nth-child(1){top:15px}.burger span:nth-child(2){top:21px}.burger span:nth-child(3){top:27px}
.burger[aria-expanded="true"] span:nth-child(1){top:21px;transform:rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){top:21px;transform:rotate(-45deg)}
.menu{position:fixed;inset:0;z-index:40;background:var(--paper);padding:100px 24px 32px;display:flex;flex-direction:column;opacity:0;visibility:hidden;transform:translateY(-12px);transition:opacity .3s,transform .3s,visibility .3s;overflow-y:auto}
.menu.open{opacity:1;visibility:visible;transform:none}
.menu nav{display:flex;flex-direction:column}
.menu nav a{display:flex;justify-content:space-between;align-items:baseline;text-decoration:none;padding:18px 4px;border-bottom:1px solid var(--line);font-family:var(--display);font-weight:900;font-size:1.7rem;letter-spacing:.06em}
.menu nav a small{font-family:var(--mono);font-weight:400;font-size:.7rem;letter-spacing:.16em;color:var(--sun)}
.menu nav a[aria-current="page"]{color:var(--sun)}
.menu-foot{margin-top:auto;padding-top:28px;display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap}
.menu-social{display:flex;gap:16px;flex-wrap:wrap}
.menu-social a{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-decoration:none;color:var(--ink-2)}
body.menu-open{overflow:hidden}
@media (max-width:860px){
  .head-in{height:64px;flex-wrap:nowrap;padding:0}
  .site-head .gnav{display:none}
  .burger{display:block}
  .brand small{display:none}
  .brand b{font-size:1rem;letter-spacing:.08em}
}
@media (max-width:480px){.site-head .lang-sw{display:none}}
.menu nav a .ml{display:inline-flex;align-items:center;gap:12px}
/* =========================================================
   WORDMARK — Fredoka + wave-shaped W (like the logo)
   ========================================================= */
.ww{display:inline-block;width:1.02em;height:.72em;vertical-align:-.02em;margin:0 .02em 0 .04em}
.ww svg{width:100%;height:100%;display:block;overflow:visible}