/*
Theme Name: ICHIZEN Swell Child
Template: swell
Version: 1.1.0
Description: Swellの子テーマ。header / footer / front-page をフルカスタム。Swellは固定ページコンテンツや投稿エディタ機能を提供する基盤として使用。
Author: ICHIZEN HOLDINGS
*/

/* ========================================
   Design Tokens — source of truth for the entire site
   (synced with ichizen_journal_v3.html :root)
   ======================================== */
:root {
  /* Colors */
  --color-bg: #FFFFFF;
  --color-bg-alt: #F6F5F1;        /* warm off-white section bg */
  --color-bg-dark: #0C0C0C;
  --color-text: #141414;          /* near-black */
  --color-text-sub: #565656;
  --color-text-mute: #9A968E;
  --color-border: #E7E4DC;        /* warm light border */
  --color-border-strong: #1c1c1c;
  --color-accent: #D85A30;        /* ICHIZEN orange */
  --color-accent-dark: #BE451E;
  --color-accent-soft: rgba(216, 90, 48, 0.08);
  --color-paper: #EFEDE6;
  --color-paper-2: #EAE7DE;
  --color-cta-bg: #6B6B6B;
  --color-cta-card-dark: #1F1F1F;
  --color-cta-card-blue: #1B3A8B; /* misnomer — was originally blue, now accent. Kept for back-compat */

  /* Typography */
  --font-jp: "Zen Kaku Gothic New", "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Helvetica Neue", Arial, sans-serif;
  --font-en: "Inter", var(--font-jp);
  --font-mono: "JetBrains Mono", "Menlo", "Consolas", monospace;
  --font-sans: var(--font-jp); /* 後方互換 */

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 72px;
  --space-3xl: 120px;

  /* Layout */
  --container: 1240px;
  --container-wide: 1400px;
  --container-narrow: 920px;
  --header-h: 80px;

  /* Effects */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-card: 32px;
  --radius-xl: 36px;
  --radius-pill: 999px;
  --transition: 240ms cubic-bezier(0.22, 1, 0.36, 1);
  --slide-transition: 600ms cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ========================================
   Reset (minimal)
   ======================================== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-jp);
  font-weight: 500;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.7;
  letter-spacing: 0.01em;
}
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; background: none; border: 0; color: inherit; }
h1, h2, h3, h4 { font-weight: 700; line-height: 1.3; margin: 0; }

/* 英字/数字はInter */
.en, .top-fv__big, [class*="__en"], [class*="-en"], [class*="eyebrow"], [class*="num"] {
  font-family: var(--font-en);
}

::selection { background: var(--color-accent); color: #fff; }

/* ========================================
   Layout
   ======================================== */
/* Content min-height. padding-top for the fixed header is set on body in
   header.css (one source of truth — was previously also on #site-main here,
   causing a double-padding bug). */
#site-main { min-height: calc(100vh - var(--header-h)); }

.l-inner { max-width: var(--container); margin: 0 auto; padding: 0 var(--space-lg); }

/* セクション共通の見出しラベル (EN small caps + JA) */
.sec-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}
.sec-eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--color-accent);
}

/* ========================================
   Buttons (LANY風 pill + arrow)
   ======================================== */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 30px;
  font-family: var(--font-jp);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  border-radius: var(--radius-pill);
  border: 1.5px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
  overflow: hidden;
}
.btn::after {
  content: "";
  width: 16px;
  height: 8px;
  flex-shrink: 0;
  background: currentColor;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='8' viewBox='0 0 16 8'%3E%3Cpath d='M12 0l4 4-4 4-1-1 2-2H0V3h13l-2-2z'/%3E%3C/svg%3E") no-repeat center / contain;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='8' viewBox='0 0 16 8'%3E%3Cpath d='M12 0l4 4-4 4-1-1 2-2H0V3h13l-2-2z'/%3E%3C/svg%3E") no-repeat center / contain;
  transition: transform var(--transition);
}
.btn:hover::after { transform: translateX(4px); }

.btn--primary { background: var(--color-text); color: #fff; }
.btn--primary:hover { background: var(--color-accent); transform: translateY(-2px); }

.btn--accent { background: var(--color-accent); color: #fff; }
.btn--accent:hover { background: var(--color-accent-dark); transform: translateY(-2px); }

.btn--outline { border-color: rgba(20,20,20,0.25); color: var(--color-text); }
.btn--outline:hover { border-color: var(--color-text); background: var(--color-text); color: #fff; transform: translateY(-2px); }

.btn--ghost-light { border-color: rgba(255,255,255,0.3); color: #fff; }
.btn--ghost-light:hover { background: #fff; color: var(--color-text); border-color: #fff; }

/* ========================================
   Scroll Reveal (top.js が is-in を付与)
   ======================================== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out); }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}