:root {
  /* ===== Soft / Friendly Light Theme ===== */
  --bg: #f7fbff;              /* 全体背景：ほぼ白に近い水色 */
  --panel: rgba(255, 255, 255, 0.82);
  --panel-2: rgba(255, 255, 255, 0.92);
  --text: rgba(15, 23, 42, 0.92);   /* 濃いネイビー寄り（黒より柔らかい） */
  --muted: rgba(15, 23, 42, 0.62);
  --line: rgba(59, 130, 246, 0.18); /* うっすら青系の罫線 */

  --accent: #38bdf8;          /* メイン：水色 */
  --accent-2: #ffffff;        /* サブ：白 */
  --danger: #fb7185;

  --radius: 18px;
  --shadow: 0 14px 40px rgba(15, 23, 42, 0.08);  /* ふわっと */
  --shadow-2: 0 10px 26px rgba(15, 23, 42, 0.06);

  --container: 1040px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", "Hiragino Sans", "Noto Sans JP", "Meiryo",
    Arial, sans-serif;
  color: var(--text);

  /* 優しい“空気感”のグラデーション（暗さゼロ） */
  background:
    radial-gradient(1200px 640px at 18% 10%, rgba(56, 189, 248, 0.22), transparent 60%),
    radial-gradient(900px 520px at 85% 18%, rgba(255, 255, 255, 0.95), transparent 62%),
    radial-gradient(900px 640px at 55% 92%, rgba(56, 189, 248, 0.12), transparent 65%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.85), rgba(247, 251, 255, 1));
  background-color: var(--bg);

  line-height: 1.7;
}

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

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

/* Skip link */
.skip-link {
  position: absolute;
  left: 12px;
  top: 12px;
  padding: 10px 12px;
  border-radius: 12px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text);
  transform: translateY(-200%);
  transition: transform 160ms ease;
  z-index: 999;
}
.skip-link:focus {
  transform: translateY(0);
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;

  /* “白くて柔らかい”透け感 */
  backdrop-filter: blur(14px);
  background: rgba(255, 255, 255, 0.72);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 12px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 14px;
}
.brand-link:hover {
  background: rgba(56, 189, 248, 0.08);
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: inline-grid;
  place-items: center;
  border-radius: 12px;

  /* 水色→白：優しい印象 */
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.95), rgba(255, 255, 255, 0.95));

  color: rgba(15, 23, 42, 0.88);
  font-weight: 900;
  box-shadow: 0 10px 24px rgba(56, 189, 248, 0.18);
}

.brand-name {
  font-weight: 800;
  letter-spacing: 0.2px;
}

/* ===== Nav ===== */
.site-nav {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.70);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-2);
}

.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
  transition: background 160ms ease, color 160ms ease, transform 160ms ease, border-color 160ms ease;
  outline: none;
  border: 1px solid transparent;
}
.nav-link:hover {
  background: rgba(56, 189, 248, 0.10);
  color: rgba(15, 23, 42, 0.86);
}
.nav-link:active {
  transform: translateY(1px);
}
.nav-link.is-active {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.20), rgba(255, 255, 255, 0.70));
  border-color: rgba(56, 189, 248, 0.35);
  color: rgba(15, 23, 42, 0.92);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  color: var(--text);
  border-radius: 14px;
  padding: 10px 12px;
  gap: 8px;
  align-items: center;
  box-shadow: var(--shadow-2);
}
.nav-toggle:focus-visible {
  outline: 2px solid rgba(56, 189, 248, 0.55);
  outline-offset: 2px;
}
.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background: rgba(15, 23, 42, 0.55);
  border-radius: 999px;
  margin: 3px 0;
}
.nav-toggle-label {
  font-size: 12px;
  color: var(--muted);
  margin-left: 6px;
}

/* ===== Main ===== */
.site-main {
  padding: 28px 0 54px;
}

.view {
  padding: 18px 0 26px;
}

/* ===== Cards ===== */
.card {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card-inner {
  padding: 22px;
}

/* ===== Hero ===== */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
  align-items: stretch;
}

.hero h1 {
  margin: 0 0 10px;
  font-size: clamp(28px, 3.2vw, 40px);
  line-height: 1.2;
  letter-spacing: 0.2px;
}
.hero p {
  margin: 0 0 18px;
  color: var(--muted);
}

/* ===== Badges ===== */
.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}
.badge {
  border: 1px solid rgba(56, 189, 248, 0.22);
  background: rgba(255, 255, 255, 0.78);
  padding: 8px 10px;
  border-radius: 999px;
  font-size: 12px;
  color: rgba(15, 23, 42, 0.70);
}

/* CTAの塊自体を右端へ寄せる（PCで効く） */
.cta-row{
  display: flex;          /* 念のため */
  width: fit-content;     /* 内容幅にする */
  margin-left: auto;      /* 残り余白を左に持っていって右寄せ */
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
  height: 64px
}

/* 親のグリッド/要素が中央寄せになってても伸びるように保険 */
.hero {
  justify-items: stretch;
}
.hero > * {
  width: 100%;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 14px;
  border-radius: 14px;
  border: 1px solid rgba(56, 189, 248, 0.24);
  background: rgba(255, 255, 255, 0.75);
  color: rgba(15, 23, 42, 0.90);
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.06);
}
.btn:hover {
  background: rgba(56, 189, 248, 0.10);
  border-color: rgba(56, 189, 248, 0.35);
  box-shadow: 0 10px 24px rgba(56, 189, 248, 0.10);
}
.btn:active {
  transform: translateY(1px);
}

.btn.primary {
  border-color: rgba(56, 189, 248, 0.45);
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.24), rgba(255, 255, 255, 0.80));
  box-shadow: 0 12px 28px rgba(56, 189, 248, 0.14);
}

/* ===== KPI / Side boxes ===== */
.hero-side {
  display: grid;
  gap: 12px;
}

.kpi {
  display: grid;
  gap: 6px;
  padding: 16px;
  border-radius: 16px;
  border: 1px solid rgba(56, 189, 248, 0.18);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.05);
}

.kpi .kpi-label {
  color: var(--muted);
  font-size: 12px;
}
.kpi .kpi-value {
  font-size: 18px;
  font-weight: 800;
  color: rgba(15, 23, 42, 0.90);
}
.kpi .kpi-note {
  color: rgba(15, 23, 42, 0.60);
  font-size: 12px;
}

/* ===== Sections / Grid ===== */
.section-title {
  margin: 22px 0 10px;
  font-size: 18px;
  letter-spacing: 0.2px;
  color: rgba(15, 23, 42, 0.88);
}

.grid {
  display: grid;
  gap: 12px;
}
.grid.cols-3 {
  grid-template-columns: repeat(3, 1fr);
}
.grid.cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.item {
  border: 1px solid rgba(56, 189, 248, 0.16);
  background: rgba(255, 255, 255, 0.80);
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 10px 22px rgba(15, 23, 42, 0.04);
}
.item h3 {
  margin: 0 0 8px;
  font-size: 16px;
  color: rgba(15, 23, 42, 0.88);
}
.item p {
  margin: 0;
  color: rgba(15, 23, 42, 0.64);
  font-size: 14px;
}

.hr {
  height: 1px;
  background: rgba(56, 189, 248, 0.18);
  margin: 18px 0;
}

/* ===== Form ===== */
.form {
  display: grid;
  gap: 12px;
  margin-top: 12px;
}

.field {
  display: grid;
  gap: 6px;
}

.label {
  font-size: 13px;
  color: rgba(15, 23, 42, 0.62);
}

.input,
.textarea {
  width: 100%;
  border-radius: 14px;
  border: 1px solid rgba(56, 189, 248, 0.22);
  background: rgba(255, 255, 255, 0.92);
  color: rgba(15, 23, 42, 0.90);
  padding: 12px 12px;
  outline: none;
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.04);
}

.textarea {
  min-height: 140px;
  resize: vertical;
}

.input:focus,
.textarea:focus {
  border-color: rgba(56, 189, 248, 0.55);
  box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.16);
}

/* ===== Notice ===== */
.notice {
  border-left: 3px solid rgba(56, 189, 248, 0.80);
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(56, 189, 248, 0.10);
  color: rgba(15, 23, 42, 0.68);
  font-size: 13px;
}

/* ===== Footer ===== */
.site-footer {
  margin-top: 26px;
  border-top: 1px solid rgba(56, 189, 248, 0.18);
  padding-top: 18px;
  color: rgba(15, 23, 42, 0.60);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: 10px;
}

.footer-link {
  color: rgba(15, 23, 42, 0.62);
  border-bottom: 1px dashed transparent;
}
.footer-link:hover {
  color: rgba(15, 23, 42, 0.86);
  border-bottom-color: rgba(56, 189, 248, 0.35);
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }
  .grid.cols-3 {
    grid-template-columns: 1fr;
  }
  .grid.cols-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .nav-toggle {
    display: inline-flex;
  }
  .site-nav {
    position: absolute;
    right: 16px;
    top: 62px;
    display: none;
    width: min(360px, calc(100vw - 32px));
    flex-direction: column;
    align-items: stretch;
    border-radius: 18px;
    padding: 10px;

    /* モバイルメニューも明るく安心 */
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(56, 189, 248, 0.20);
    box-shadow: var(--shadow);
  }
  .site-nav.is-open {
    display: flex;
  }
  .nav-link {
    justify-content: flex-start;
    border-radius: 14px;
  }
}
/* brand-mark 内の画像を枠にフィットさせる */
.brand-mark img{
  width: 75%;
  height: 100%;
  object-fit: contain; /* 余白ありで収める（切り抜かない） */
  display: block;
}
.google-form {
  width: 100%;
  height: 500px;
}
/* ハンバーガー3本線を縦積みに（ラベルは右） */
.nav-toggle{
  display: grid;
  grid-template-columns: 24px auto;   /* 左：線 / 右：Menu */
  grid-template-rows: repeat(3, 1fr); /* 線を3段 */
  column-gap: 8px;
  row-gap: 4px;
  align-items: center;
}

.nav-toggle-bar{
  grid-column: 1;
  width: 20px;
  height: 2px;
  margin: 0;          /* 既存のmarginを無効化 */
}

.nav-toggle-bar:nth-of-type(1){ grid-row: 1; }
.nav-toggle-bar:nth-of-type(2){ grid-row: 2; }
.nav-toggle-bar:nth-of-type(3){ grid-row: 3; }

.nav-toggle-label{
  grid-column: 2;
  grid-row: 1 / span 3; /* 3本線の高さに合わせて中央 */
  margin-left: 0;       /* 既存のmarginを無効化 */
}