/* ═══════════════════════════════════════════════
   CodeBloom — 共通スタイル
   ═══════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800;900&family=Zen+Maru+Gothic:wght@400;700&display=swap');

/* ── CSS Variables ── */
:root {
  /* palette */
  --pink:        #ffb5c8;
  --pink-d:      #ff8fab;
  --pink-light:  #fff0f5;
  --mint:        #b5ead7;
  --mint-d:      #6ecfaa;
  --lavender:    #c9b8f0;
  --lavender-d:  #a78bda;
  --sky:         #a8d8f0;
  --sky-d:       #5ab4e0;
  --yellow:      #ffeaa7;
  --peach:       #ffd6c0;

  /* base */
  --bg:          #fff5f8;
  --bg2:         #f5f0ff;
  --card:        #ffffff;
  --text:        #3d3250;
  --text-s:      #9488b0;
  --border:      #ede3f5;

  /* shadows */
  --shadow-sm:   0 2px 10px rgba(160,120,180,.10);
  --shadow-md:   0 6px 24px rgba(160,120,180,.16);
  --shadow-lg:   0 12px 48px rgba(160,120,180,.22);

  /* radius */
  --r-sm:  10px;
  --r-md:  16px;
  --r-lg:  24px;
  --r-xl:  32px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  height: 100%;
  font-family: 'Nunito', 'Zen Maru Gothic', sans-serif;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 10px; }

/* ── Utility ── */
.visually-hidden { position: absolute; width: 1px; height: 1px; clip: rect(0,0,0,0); overflow: hidden; }

/* ── Page header (shared across inner pages) ── */
.page-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  background: var(--card);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 50;
}
.page-header .btn-back {
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--text-s);
  line-height: 1;
  padding: 4px;
  transition: color .15s;
}
.page-header .btn-back:hover { color: var(--pink-d); }
.page-header .page-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text);
  flex: 1;
}

/* ── Form fields ── */
.field-label {
  display: block;
  font-size: .78rem;
  font-weight: 700;
  color: var(--text-s);
  margin-bottom: 5px;
  letter-spacing: .03em;
}
.field-input {
  width: 100%;
  border: 2px solid var(--border);
  border-radius: var(--r-sm);
  padding: 11px 14px;
  font-family: inherit;
  font-size: .95rem;
  color: var(--text);
  background: #fff;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.field-input:focus {
  border-color: var(--pink-d);
  box-shadow: 0 0 0 3px rgba(255,143,171,.15);
}

/* ── Primary button ── */
.btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: var(--r-md);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 800;
  cursor: pointer;
  background: linear-gradient(120deg, var(--pink-d), var(--lavender-d));
  color: #fff;
  box-shadow: 0 4px 18px rgba(255,143,171,.40);
  transition: transform .15s, box-shadow .15s, opacity .15s;
  letter-spacing: .03em;
}
.btn-primary:hover  { box-shadow: 0 6px 24px rgba(255,143,171,.50); }
.btn-primary:active { transform: scale(.97); }

/* ── Popup ── */
.popup-overlay {
  position: fixed;
  inset: 0;
  background: rgba(60,40,90,.35);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s;
}
.popup-overlay.show { opacity: 1; pointer-events: all; }
.popup-box {
  background: #fff;
  border-radius: var(--r-lg);
  padding: 30px 26px;
  width: min(320px, 88vw);
  box-shadow: var(--shadow-lg);
  text-align: center;
  transform: scale(.88);
  transition: transform .28s cubic-bezier(.34,1.56,.64,1);
}
.popup-overlay.show .popup-box { transform: scale(1); }
.popup-box h3 { font-size: 1.05rem; font-weight: 800; margin-bottom: 8px; }
.popup-box p  { font-size: .86rem; color: var(--text-s); line-height: 1.6; margin-bottom: 22px; }
.popup-btns   { display: flex; gap: 10px; justify-content: center; }
.popup-btns .ok {
  padding: 10px 24px; border-radius: var(--r-sm); border: none;
  font-family: inherit; font-size: .9rem; font-weight: 700; cursor: pointer;
  background: linear-gradient(120deg, var(--pink-d), var(--lavender-d)); color: #fff;
}
.popup-btns .ng {
  padding: 10px 24px; border-radius: var(--r-sm); border: none;
  font-family: inherit; font-size: .9rem; font-weight: 700; cursor: pointer;
  background: var(--border); color: var(--text);
}

/* ── Fade-in animation ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp .5s cubic-bezier(.22,1,.36,1) both; }