/*
  Snow Monkey-like design mock (static)
  Theme direction: warm neutral + sage (non-blue)
*/

:root{
  --bg: #fbfaf7;
  --surface: #ffffff;
  --surface-2: #f3f1eb;
  --text: #1f2937;
  --muted: #5b6472;
  --line: rgba(31,41,55,.12);

  --accent: #3f6b5f;        /* sage */
  --accent-2:#b45309;       /* amber */

  /* extra colors (to avoid “too white”) */
  --accent-soft: rgba(63,107,95,.12);
  --amber-soft: rgba(180,83,9,.12);
  --surface-tint: #f7f3ea; /* warm tint */
  --sage-bg: #eef4f1;      /* section background */
  --sage-bg-2: #e6efe9;    /* deeper section */

  --shadow: 0 10px 30px rgba(17,24,39,.08);
  --shadow-sm: 0 6px 16px rgba(17,24,39,.10);
  --radius: 14px;
  --radius-sm: 12px;

  --font-sans: Inter, "Noto Sans JP", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: var(--font-sans);
  color: var(--text);
  background:
    radial-gradient(1000px 600px at 15% 0%, rgba(63,107,95,.10), transparent 55%),
    radial-gradient(900px 520px at 85% 10%, rgba(180,83,9,.08), transparent 58%),
    var(--bg);
  line-height: 1.7;
}

a{ color: inherit; text-decoration: none; }

.skip{
  position:absolute; left:-9999px; top:auto; width:1px; height:1px; overflow:hidden;
}
.skip:focus{
  position:fixed; left:12px; top:12px; width:auto; height:auto; padding:10px 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  z-index: 9999;
}

.container{
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

/* Header */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.78);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0; right:0; bottom:-1px;
  height:1px;
  background: linear-gradient(90deg, transparent, rgba(63,107,95,.35), rgba(180,83,9,.28), transparent);
  pointer-events:none;
}
.header__inner{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 0;
}
.brand{ display:flex; align-items:center; gap: 10px; }
.brand__mark{
  width: 38px; height: 38px;
  border-radius: 12px;
  display:grid; place-items:center;
  background: linear-gradient(135deg, rgba(63,107,95,.14), rgba(180,83,9,.10));
  border: 1px solid rgba(63,107,95,.22);
  font-weight: 800;
  color: var(--accent);
}
.brand__name{ font-weight: 700; letter-spacing: .2px; }
.brand__sub{ font-size: 12px; color: var(--muted); margin-top: -2px; }

.nav{
  display:flex;
  align-items:center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.nav__link{
  padding: 8px 10px;
  border-radius: 10px;
  color: var(--muted);
}
.nav__link:hover{ background: rgba(31,41,55,.06); color: var(--text); }
.nav__btn{
  padding: 9px 12px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), #2f574d);
  color:#fff;
  font-weight: 700;
  box-shadow: 0 10px 20px rgba(63,107,95,.18);
}
.nav__btn:hover{ filter: brightness(.97); }

.back-to-samples{
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  font-weight: 600;
}
.back-to-samples:hover{ background: rgba(31,41,55,.04); }
.back-to-samples:focus-visible,
.nav__btn:focus-visible,
.nav__link:focus-visible,
.btn:focus-visible,
.link:focus-visible{
  outline: 3px solid rgba(63,107,95,.35);
  outline-offset: 2px;
}

/* Hero */
.hero{
  position: relative;
  padding: 64px 0 30px;
}
.hero__inner{
  padding: 18px;
  border-radius: calc(var(--radius) + 6px);
  background: linear-gradient(180deg, rgba(238,244,241,.78), rgba(255,255,255,.60));
  border: 1px solid rgba(63,107,95,.14);
  box-shadow: 0 18px 40px rgba(17,24,39,.08);
}
.hero::after{
  content:"";
  display:block;
  height: 1px;
  margin-top: 26px;
  background: linear-gradient(90deg, transparent, rgba(31,41,55,.10), transparent);
}
.hero__bg{
  position:absolute;
  inset: 0;
  background:
    radial-gradient(900px 420px at 20% 10%, rgba(63,107,95,.20), transparent 62%),
    radial-gradient(800px 420px at 85% 0%, rgba(180,83,9,.12), transparent 60%),
    radial-gradient(900px 520px at 50% 100%, rgba(63,107,95,.08), transparent 62%);
  pointer-events:none;
}
.hero__inner{
  position: relative;
  display:grid;
  grid-template-columns: 1.3fr .9fr;
  gap: 22px;
  align-items: start;
}
.hero__eyebrow{
  display:inline-block;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-size: 12px;
  background: rgba(63,107,95,.10);
  border: 1px solid rgba(63,107,95,.18);
  padding: 6px 10px;
  border-radius: 999px;
}
.hero__title{
  font-size: clamp(28px, 3.2vw, 44px);
  line-height: 1.2;
  margin: 12px 0 10px;
  letter-spacing: -0.02em;
}
.hero__lead{ color: var(--muted); margin: 0 0 16px; }
.hero__cta{ display:flex; gap: 10px; flex-wrap: wrap; }
.hero__meta{ display:flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; }
.pill{
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.6);
  color: var(--muted);
}

.panel{
  background: linear-gradient(180deg, rgba(238,244,241,.92), rgba(255,255,255,.78));
  border: 1px solid rgba(63,107,95,.22);
  border-radius: var(--radius);
  box-shadow: 0 16px 30px rgba(17,24,39,.10);
  padding: 16px;
}
.panel__title{ font-weight: 800; margin-bottom: 10px; }
.panel__list{ margin:0; padding-left: 1.2em; color: var(--muted); }

/* Sections */
.section{ padding: 54px 0; }
.section--alt{
  background:
    radial-gradient(700px 260px at 15% 10%, rgba(63,107,95,.10), transparent 60%),
    radial-gradient(700px 260px at 90% 0%, rgba(180,83,9,.07), transparent 62%),
    linear-gradient(180deg, rgba(238,244,241,.95), rgba(230,239,233,.85));
  border-top: 1px solid rgba(63,107,95,.14);
  border-bottom: 1px solid rgba(63,107,95,.12);
}
.section__header{ margin-bottom: 18px; }
.section__header--row{ display:flex; align-items:flex-end; justify-content: space-between; gap: 12px; }
.section__title{ font-size: 22px; margin:0 0 4px; letter-spacing: -0.01em; position: relative; }
.section__title::after{
  content:"";
  display:block;
  width: 54px;
  height: 3px;
  margin-top: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  opacity: .85;
}
.section__lead{ color: var(--muted); margin:0; }

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 11px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--surface);
  font-weight: 700;
  transition: transform .15s ease, box-shadow .15s ease, filter .15s ease;
}
.btn:hover{ transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.btn--primary{
  background: linear-gradient(135deg, var(--accent), #2f574d);
  border-color: rgba(63,107,95,.45);
  color:#fff;
}
.btn--primary:hover{ filter: brightness(.97); }
.btn--ghost{ background: rgba(255,255,255,.78); }
.btn--ghost:hover{ background: rgba(31,41,55,.05); }

.link{ color: var(--accent); font-weight: 700; }
.link:hover{ text-decoration: underline; }

/* Grids */
.grid3{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.grid2{ display:grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }

.card{
  background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(255,255,255,.86));
  border: 1px solid rgba(31,41,55,.10);
  border-left: 5px solid rgba(63,107,95,.55);
  border-radius: var(--radius);
  box-shadow: 0 18px 36px rgba(17,24,39,.10);
  padding: 16px;
  position: relative;
  overflow: hidden;
}
.card::before{
  content:"";
  position:absolute;
  inset: 0;
  background:
    radial-gradient(260px 140px at 10% 0%, rgba(63,107,95,.10), transparent 60%),
    radial-gradient(240px 140px at 90% 10%, rgba(180,83,9,.08), transparent 60%);
  opacity: .9;
  pointer-events:none;
}
.card > *{ position: relative; }
.card__title{ letter-spacing: -0.01em; }
.card__title::before{
  content:"";
  display:inline-block;
  width: 10px;
  height: 10px;
  margin-right: 8px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 6px 14px rgba(63,107,95,.20);
}
.card__title{ margin:0 0 6px; font-size: 16px; }
.card__text{ margin:0 0 10px; color: var(--muted); }
.card__list{ margin:0; padding-left: 1.1em; color: var(--muted); }

.work{
  background: linear-gradient(180deg, rgba(255,255,255,.95), rgba(255,255,255,.82));
  border: 1px solid rgba(31,41,55,.10);
  border-left: 5px solid rgba(63,107,95,.45);
  border-radius: var(--radius);
  overflow:hidden;
  display:grid;
  grid-template-columns: 220px 1fr;
  box-shadow: 0 18px 36px rgba(17,24,39,.10);
}
.work__thumb{
  min-height: 160px;
  background:
    linear-gradient(135deg, rgba(63,107,95,.25), rgba(180,83,9,.12)),
    radial-gradient(120px 80px at 60% 40%, rgba(255,255,255,.45), transparent 60%);
}
.work__thumb--2{
  background:
    linear-gradient(135deg, rgba(180,83,9,.20), rgba(63,107,95,.12)),
    radial-gradient(120px 80px at 40% 30%, rgba(255,255,255,.40), transparent 60%);
}
.work__body{ padding: 14px; }
.work__title{ margin:0 0 6px; font-size: 16px; }
.work__text{ margin:0 0 8px; color: var(--muted); }
.work__meta{ font-size: 12px; color: var(--muted); }

/* Posts */
.posts{ display:grid; grid-template-columns: 1fr; gap: 12px; }
.post{
  background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(255,255,255,.86));
  border: 1px solid rgba(31,41,55,.10);
  border-left: 5px solid rgba(180,83,9,.38);
  border-radius: var(--radius);
  padding: 14px 16px;
  box-shadow: 0 18px 36px rgba(17,24,39,.10);
}
.post__date{ font-size: 12px; color: var(--muted); }
.post__title{ margin: 6px 0 6px; font-size: 16px; }
.post__title a:hover{ text-decoration: underline; }
.post__excerpt{ margin:0 0 10px; color: var(--muted); }
.post__tags{ display:flex; gap: 8px; flex-wrap: wrap; }
.tag{
  font-size: 12px;
  padding: 5px 10px;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(63,107,95,.14), rgba(180,83,9,.10));
  color: #2f574d;
  border: 1px solid rgba(63,107,95,.18);
}

/* Company */
.kv{ display:grid; grid-template-columns: 1fr .9fr; gap: 14px; }
.dl{ margin:0; }
.dl__row{ display:grid; grid-template-columns: 120px 1fr; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.dl__row dt{ font-weight: 800; color: var(--text); }
.dl__row dd{ margin:0; color: var(--muted); }
.note{
  background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.76));
  border: 1px solid rgba(180,83,9,.14);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow);
}
.note__title{ font-weight: 800; margin-bottom: 6px; }
.note__text{ margin:0; color: var(--muted); }

/* Contact */
.contact{ display:grid; grid-template-columns: 1.1fr .9fr; gap: 14px; }
.contact__box{
  background:
    radial-gradient(500px 240px at 15% 0%, rgba(63,107,95,.10), transparent 60%),
    radial-gradient(500px 240px at 100% 20%, rgba(180,83,9,.08), transparent 60%),
    var(--surface);
  border: 1px solid rgba(31,41,55,.12);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
}
.contact__title{ font-weight: 900; margin-bottom: 10px; }
.contact__list{ margin:0 0 14px; padding-left: 1.1em; color: var(--muted); }
.contact__actions{ display:flex; gap: 10px; flex-wrap: wrap; }
.mini{
  background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.76));
  border: 1px solid rgba(63,107,95,.14);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow);
}
.mini__title{ font-weight: 900; margin-bottom: 6px; }
.mini__text{ margin:0; color: var(--muted); }
.mini__hr{ height: 1px; background: var(--line); margin: 12px 0; }

/* Footer */
.site-footer{
  padding: 40px 0 56px;
  background:
    radial-gradient(900px 320px at 15% 40%, rgba(63,107,95,.14), transparent 60%),
    radial-gradient(900px 320px at 85% 0%, rgba(180,83,9,.12), transparent 62%),
    linear-gradient(180deg, rgba(230,239,233,.55), rgba(251,250,247,0));
}
.footer__inner{ display:flex; align-items:flex-start; justify-content: space-between; gap: 12px; }
.footer__brand{ font-weight: 900; }
.footer__small{ color: var(--muted); font-size: 12px; margin-top: 4px; }
.footer__right{ display:flex; gap: 12px; flex-wrap: wrap; }

/* Responsive */
@media (max-width: 980px){
  .hero__inner{ grid-template-columns: 1fr; }
  .grid3{ grid-template-columns: 1fr; }
  .grid2{ grid-template-columns: 1fr; }
  .work{ grid-template-columns: 1fr; }
  .work__thumb{ min-height: 140px; }
  .kv{ grid-template-columns: 1fr; }
  .contact{ grid-template-columns: 1fr; }
  .section__header--row{ align-items:flex-start; }
}

@media (max-width: 560px){
  .nav{ display:none; }
  .header__inner{ justify-content: space-between; }
  .back-to-samples{ white-space: nowrap; }
}