/* ============================================================
   Star Connect — デザイントークン
   コンセプト：晴れた日の病室の窓から見える空。3つの機能を3つの星に
   見立て、星座線でつなぐ。配色は「澄んだ水色の空」に
   「陽だまりのオレンジ」を差し色として使う。
   ============================================================ */
:root {
  /* --- 水色（背景・面） --- */
  --sky-50: #F3FAFF;   /* 最も明るい背景 */
  --sky-100: #E4F4FF;  /* 基本背景 */
  --sky-200: #D2ECFC;  /* カード面 */
  --sky-300: #B9E0F7;  /* 浮き上がった面・ホバー */
  --sky-400: #8FCBEE;  /* 罫線・ボーダー */


  /* --- アクセント --- */
  --sun: #FF9640;       /* 陽だまりのオレンジ（主アクセント／CTA） */
  --sun-dim: #E6822F;
  --sky-accent: #38B6E8; /* 澄んだ水色（副アクセント） */
  --sky-accent-dim: #2B9BCB;


  /* --- 3つの星のシグナルカラー --- */
  --star-classroom: #38B6E8; /* 教室：水色の光 */
  --star-senior: #FF9640;    /* 先輩：オレンジの光 */
  --star-hoppy: #FFC169;     /* ホッピー：あたたかい琥珀色の光 */


  /* --- 文字 --- */
  --text-hi: #16324A;
  --text-mid: #4A6B84;
  --text-low: #7E9AB0;


  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 10px;


  --font-display: "Zen Maru Gothic", "Noto Sans JP", sans-serif;
  --font-body: "Noto Sans JP", "Zen Maru Gothic", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;


  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}


* { box-sizing: border-box; }


html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: var(--sky-100);
  color: var(--text-hi);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}


button, input, select { font-family: inherit; }


:focus-visible {
  outline: 2px solid var(--sun);
  outline-offset: 3px;
  border-radius: 4px;
}


/* ============================================================
   背景の空
   ============================================================ */
.sky {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(ellipse 700px 500px at 15% -8%, rgba(56, 182, 232, 0.16), transparent 60%),
    radial-gradient(ellipse 600px 500px at 100% 10%, rgba(255, 150, 64, 0.10), transparent 55%),
    var(--sky-100);
}
.stars {
  position: absolute;
  inset: 0;
  background-repeat: repeat;
  opacity: 0.5;
}
.stars-small {
  background-image:
    radial-gradient(1.6px 1.6px at 20px 30px, #fff, transparent),
    radial-gradient(1.2px 1.2px at 90px 120px, #fff, transparent),
    radial-gradient(1.6px 1.6px at 160px 60px, #fff, transparent),
    radial-gradient(1.2px 1.2px at 220px 180px, #fff, transparent),
    radial-gradient(1.6px 1.6px at 280px 40px, #fff, transparent);
  background-size: 320px 220px;
  animation: twinkle 7s ease-in-out infinite alternate;
}
.stars-mid {
  background-image:
    radial-gradient(2px 2px at 60px 80px, var(--sun), transparent),
    radial-gradient(1.6px 1.6px at 200px 20px, #fff, transparent),
    radial-gradient(2px 2px at 300px 150px, var(--sky-accent), transparent);
  background-size: 380px 300px;
  opacity: 0.35;
  animation: twinkle 9s ease-in-out infinite alternate-reverse;
}
@keyframes twinkle { from { opacity: 0.2; } to { opacity: 0.55; } }
@media (prefers-reduced-motion: reduce) {
  .stars, .hero-node { animation: none !important; }
}


.view { position: relative; z-index: 1; }


.toast {
  position: fixed;
  top: 14px;
  left: 50%;
  transform: translateX(-50%) translateY(-140%);
  background: var(--text-hi);
  color: #fff;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 0.85rem;
  z-index: 50;
  box-shadow: 0 10px 30px rgba(22,50,74,0.25);
  transition: transform 0.35s var(--ease);
}
.toast.show { transform: translateX(-50%) translateY(0); }


/* ============================================================
   認証画面
   ============================================================ */
.view-auth {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}
.auth-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 400px;
  background: #FFFFFF;
  border: 1px solid var(--sky-300);
  border-radius: var(--radius-lg);
  padding: 34px 26px;
  box-shadow: 0 30px 70px rgba(56,182,232,0.18);
}
.brand { text-align: center; margin-bottom: 22px; }
.brand-star {
  font-size: 2.1rem;
  color: var(--sun);
  display: block;
  filter: drop-shadow(0 0 10px rgba(255,150,64,0.35));
}
.brand-star.small { font-size: 1.15rem; }
.brand h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.65rem;
  margin: 8px 0 12px;
  letter-spacing: 0.01em;
  color: var(--text-hi);
}
.brand-copy {
  font-size: 0.82rem;
  color: var(--text-mid);
  line-height: 1.8;
  margin: 0;
}


.tab-switch {
  display: flex;
  background: var(--sky-100);
  border-radius: 999px;
  padding: 4px;
  margin-bottom: 22px;
  border: 1px solid var(--sky-300);
}
.tab-btn {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--text-mid);
  padding: 10px 6px;
  border-radius: 999px;
  font-size: 0.82rem;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}
.tab-btn.is-active {
  background: linear-gradient(135deg, var(--sun), var(--sky-accent));
  color: #fff;
  font-weight: 700;
}


.auth-form { display: flex; flex-direction: column; gap: 4px; }
.auth-form label {
  font-size: 0.76rem;
  color: var(--text-mid);
  margin-top: 12px;
}
.auth-form input, .auth-form select {
  background: var(--sky-50);
  border: 1px solid var(--sky-400);
  color: var(--text-hi);
  padding: 12px 13px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}
.auth-form input:focus, .auth-form select:focus {
  border-color: var(--sun);
  box-shadow: 0 0 0 3px rgba(255,150,64,0.16);
}
.auth-foot {
  text-align: center;
  font-size: 0.7rem;
  color: var(--text-low);
  margin: 20px 0 0;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}


/* ============================================================
   ボタン
   ============================================================ */
.btn {
  border: none;
  border-radius: 999px;
  padding: 12px 22px;
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s var(--ease), box-shadow 0.15s var(--ease), filter 0.15s;
}
.btn:active { transform: scale(0.97); }
.btn-primary {
  margin-top: 20px;
  background: linear-gradient(135deg, var(--sun), var(--sky-accent));
  color: #fff;
  box-shadow: 0 14px 28px rgba(255,150,64,0.28);
}
.btn-primary:hover { filter: brightness(1.05); }
.btn-secondary {
  background: var(--sky-200);
  color: var(--text-hi);
  white-space: nowrap;
  border: 1px solid var(--sky-400);
}
.btn-secondary:hover { background: var(--sky-300); }


/* ============================================================
   ヘッダー
   ============================================================ */
.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: rgba(243, 250, 255, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--sky-300);
}
.app-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--text-hi);
}
.icon-btn {
  background: #fff;
  border: 1px solid var(--sky-300);
  color: var(--text-hi);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s;
}
.icon-btn:hover { background: var(--sky-200); }


/* ============================================================
   ホーム — 星座マップ（意味のあるシグネチャー要素）
   ============================================================ */
#view-home { padding: 18px 18px 60px; max-width: 720px; margin: 0 auto; }


.hero-map {
  width: 100%;
  max-width: 420px;
  margin: 4px auto 6px;
}
.hero-map svg { width: 100%; height: auto; display: block; }
.hero-node { animation: pulse 3.2s ease-in-out infinite; transform-origin: center; }
.hero-node-classroom { fill: var(--star-classroom); animation-delay: 0s; }
.hero-node-senior    { fill: var(--star-senior);    animation-delay: 0.6s; }
.hero-node-hoppy     { fill: var(--star-hoppy);     animation-delay: 1.2s; }
@keyframes pulse {
  0%, 100% { opacity: 0.75; r: 5; }
  50% { opacity: 1; r: 6.5; }
}


.greeting {
  font-family: var(--font-display);
  font-size: 1.32rem;
  font-weight: 700;
  text-align: center;
  margin: 2px 0 20px;
  color: var(--text-hi);
}


.mood-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  margin-bottom: 24px;
  border: 1px solid var(--sky-300);
  box-shadow: 0 12px 30px rgba(56,182,232,0.10);
}
.mood-label { margin: 0 0 12px; font-size: 0.88rem; color: var(--text-mid); }
.mood-stars { display: flex; gap: 8px; }
.mood-stars button {
  background: none;
  border: none;
  font-size: 1.9rem;
  line-height: 1;
  color: var(--sky-300);
  cursor: pointer;
  padding: 2px;
  transition: color 0.15s, transform 0.15s var(--ease);
}
.mood-stars button:hover { color: var(--sun-dim); transform: translateY(-2px); }
.mood-stars button.is-selected {
  color: var(--sun);
  transform: scale(1.15);
  filter: drop-shadow(0 0 6px rgba(255,150,64,0.45));
}
.mood-hint {
  margin: 10px 0 0;
  font-size: 0.72rem;
  color: var(--text-low);
  font-family: var(--font-mono);
}


.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
@media (min-width: 620px) {
  .feature-grid { grid-template-columns: repeat(3, 1fr); }
}
.feature-card {
  text-align: left;
  border: 1px solid var(--sky-300);
  border-radius: var(--radius-lg);
  padding: 22px 20px;
  cursor: pointer;
  color: var(--text-hi);
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: #fff;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), border-color 0.2s;
}
.feature-card::before {
  content: "";
  position: absolute;
  top: -40%; right: -30%;
  width: 160px; height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--dot-color, var(--sun)) 0%, transparent 70%);
  opacity: 0.14;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 36px rgba(56,182,232,0.18);
  border-color: var(--dot-color, var(--sky-400));
}
.feature-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--dot-color, var(--sun));
  box-shadow: 0 0 8px var(--dot-color, var(--sun));
  margin-bottom: 4px;
}
.feature-classroom { --dot-color: var(--star-classroom); }
.feature-senior    { --dot-color: var(--star-senior); }
.feature-hoppy      { --dot-color: var(--star-hoppy); }
.feature-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  color: var(--text-low);
  text-transform: uppercase;
}
.feature-name { font-family: var(--font-display); font-weight: 700; font-size: 1.04rem; margin-top: 2px; }
.feature-desc { font-size: 0.78rem; color: var(--text-mid); line-height: 1.6; }


/* ============================================================
   共通セクション
   ============================================================ */
.section-note {
  max-width: 720px;
  margin: 16px auto 4px;
  padding: 0 18px;
  font-size: 0.82rem;
  color: var(--text-mid);
}
#view-classroom, #view-senior, #view-hoppy {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 18px 40px;
}


.room-list, .senior-list { display: flex; flex-direction: column; gap: 10px; margin: 14px 0; }
.room-item, .senior-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: #fff;
  border: 1px solid var(--sky-300);
  border-radius: var(--radius-md);
  padding: 15px 17px;
  cursor: pointer;
  color: var(--text-hi);
  text-align: left;
  transition: background 0.15s, border-color 0.15s;
}
.room-item:hover, .senior-item:hover { background: var(--sky-100); border-color: var(--sky-400); }
.room-item-name, .senior-item-name { font-weight: 700; font-size: 0.94rem; }
.room-item-meta, .senior-item-meta {
  font-size: 0.72rem;
  color: var(--text-low);
  font-family: var(--font-mono);
}


.inline-form { display: flex; gap: 8px; margin: 14px 0; }
.inline-form input {
  flex: 1;
  background: #fff;
  border: 1px solid var(--sky-400);
  color: var(--text-hi);
  padding: 12px 16px;
  border-radius: 999px;
  outline: none;
  font-size: 0.9rem;
}
.inline-form input:focus { border-color: var(--sun); }


.room-detail {
  margin-top: 20px;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 20px;
  border: 1px solid var(--sky-300);
}
.room-detail-head { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.room-detail-head h2 { font-family: var(--font-display); font-size: 1.1rem; margin: 0; color: var(--text-hi); }
.watch-only-toggle { font-size: 0.78rem; color: var(--text-mid); display: flex; align-items: center; gap: 6px; }
.room-members {
  font-size: 0.72rem;
  color: var(--text-low);
  margin: 10px 0 0;
  font-family: var(--font-mono);
}


.chat-log {
  max-height: 320px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin-top: 14px;
  padding-right: 4px;
}
.chat-bubble {
  max-width: 80%;
  padding: 11px 15px;
  border-radius: 17px;
  font-size: 0.88rem;
  line-height: 1.6;
}
.chat-bubble.mine {
  align-self: flex-end;
  background: linear-gradient(135deg, var(--sun), var(--sun-dim));
  color: #fff;
  border-bottom-right-radius: 4px;
}
.chat-bubble.theirs {
  align-self: flex-start;
  background: var(--sky-200);
  color: var(--text-hi);
  border-bottom-left-radius: 4px;
}
.chat-bubble .meta {
  display: block;
  font-size: 0.62rem;
  opacity: 0.75;
  margin-top: 5px;
  font-family: var(--font-mono);
}


.senior-layout { display: flex; flex-direction: column; gap: 16px; }
.senior-thread { background: #fff; border-radius: var(--radius-lg); padding: 18px; border: 1px solid var(--sky-300); }


.hoppy-intro {
  display: flex;
  align-items: center;
  gap: 14px;
  background: linear-gradient(135deg, rgba(255,150,64,0.10), rgba(56,182,232,0.10));
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  margin-top: 16px;
  border: 1px solid var(--sky-300);
}
.hoppy-avatar { font-size: 2rem; }
.hoppy-intro p { margin: 0; font-size: 0.85rem; color: var(--text-mid); line-height: 1.7; }
.hoppy-log { min-height: 220px; }


@media (max-width: 480px) {
  .auth-card { padding: 28px 18px; }
  .feature-card { padding: 18px; }
  .hero-map { max-width: 300px; }
}