/* ============================================================
   YoriVault — 黒基調・サテン調の入口ポータル
   ============================================================ */

:root {
  --bg-0: #050505;
  --bg-1: #0B0F12;
  --bg-2: #111417;
  --card: rgba(255, 255, 255, 0.06);
  --card-hover: rgba(255, 255, 255, 0.09);
  --border: rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #F5F7FA;
  --text-sub: #A7B0BA;
  --folder: #F4F4F2;
  --accent: #00D5E8;
  --accent-soft: rgba(0, 213, 232, 0.14);
  --radius: 18px;
  --font: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN",
          "Noto Sans JP", "Segoe UI", "Yu Gothic UI", Meiryo, sans-serif;
  color-scheme: dark;
}

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

html {
  -webkit-text-size-adjust: 100%;
  background: var(--bg-0);
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(120% 60% at 50% -10%, var(--bg-2) 0%, var(--bg-1) 45%, var(--bg-0) 100%);
  background-color: var(--bg-0);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  overflow-x: hidden;
}

/* 控えめな青緑の光 */
.bg-glow {
  position: fixed;
  inset: auto 0 0 0;
  height: 55vh;
  pointer-events: none;
  background: radial-gradient(60% 50% at 50% 100%, rgba(0, 213, 232, 0.07), transparent 70%);
  z-index: 0;
}

.app {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding:
    calc(env(safe-area-inset-top, 0px) + 40px)
    calc(env(safe-area-inset-right, 0px) + 22px)
    calc(env(safe-area-inset-bottom, 0px) + 28px)
    calc(env(safe-area-inset-left, 0px) + 22px);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
}

/* ---------- Header ---------- */
.app-header { text-align: center; }

.brand {
  margin: 0;
  font-size: 30px;
  font-weight: 600;
  letter-spacing: 0.02em;
  background: linear-gradient(180deg, #FFFFFF 0%, #D9DDE2 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tagline {
  margin: 6px 0 0;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--text-sub);
}

/* ---------- Hero ---------- */
.hero {
  display: flex;
  justify-content: center;
  margin: 28px 0 30px;
}

.hero-art {
  width: min(62vw, 240px);
  height: auto;
  filter: drop-shadow(0 18px 28px rgba(0, 0, 0, 0.55));
}

.hero-cloud {
  animation: breathe 6s ease-in-out infinite;
}

@keyframes breathe {
  0%, 100% { stroke-opacity: 0.35; }
  50%      { stroke-opacity: 0.7; }
}

/* ---------- Menu ---------- */
.menu-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  height: 100%;
  min-height: 112px;
  padding: 16px;
  border-radius: var(--radius);
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.07) 0%, rgba(255, 255, 255, 0.03) 100%),
    var(--card);
  border: 1px solid var(--border);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 8px 24px rgba(0, 0, 0, 0.35);
  color: var(--text);
  text-decoration: none;
  transition: transform 0.15s ease, background-color 0.2s ease, border-color 0.2s ease;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.card:hover {
  background-color: var(--card-hover);
  border-color: var(--border-strong);
}

.card:active { transform: scale(0.97); }

.card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.card[aria-disabled="true"] {
  opacity: 0.45;
  pointer-events: none;
}

.card-icon {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(180deg, #FAFAF8 0%, #E4E5E2 100%);
  box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.35);
}

.card-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: #15191C;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.card-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.35;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.card-sub {
  margin-top: 2px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-sub);
}

/* 上段2つ（すべて / 写真）は少し強調 */
.card--primary {
  border-color: rgba(0, 213, 232, 0.22);
  background:
    linear-gradient(160deg, rgba(0, 213, 232, 0.10) 0%, rgba(255, 255, 255, 0.03) 70%),
    var(--card);
}

.card--primary .card-icon {
  box-shadow: 0 0 0 1px rgba(0, 213, 232, 0.25), 0 2px 10px rgba(0, 213, 232, 0.18);
}

/* ---------- Warning / Footer ---------- */
.config-warning {
  margin: 20px 0 0;
  padding: 12px 14px;
  border-radius: 12px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-sub);
  background: var(--accent-soft);
  border: 1px solid rgba(0, 213, 232, 0.25);
}

.app-footer {
  margin-top: auto;
  padding-top: 36px;
  text-align: center;
  font-size: 10px;
  letter-spacing: 0.12em;
  color: rgba(167, 176, 186, 0.45);
}

.noscript {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  margin: 0;
  padding: 12px;
  text-align: center;
  background: var(--bg-2);
  color: var(--text-sub);
  font-size: 13px;
}

/* ---------- Responsive ---------- */

/* 2列のとき、9枚目（奇数の最後）は横幅いっぱいに */
@media (max-width: 639px) {
  .menu-grid > li:last-child:nth-child(odd) { grid-column: 1 / -1; }
  .menu-grid > li:last-child:nth-child(odd) .card {
    flex-direction: row;
    align-items: center;
    min-height: 76px;
  }
}

/* 小さい iPhone（SE など）は1列・横並び */
@media (max-width: 349px) {
  .menu-grid { grid-template-columns: 1fr; }
  .card { flex-direction: row; align-items: center; min-height: 72px; }
}

/* タブレット・PC：3列＋余白広め */
@media (min-width: 640px) {
  .app { padding-top: calc(env(safe-area-inset-top, 0px) + 64px); }
  .brand { font-size: 36px; }
  .hero { margin: 36px 0 40px; }
  .menu-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
  .card { min-height: 120px; padding: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-cloud { animation: none; }
  .card { transition: none; }
}