/* =========================================================
   華やかな演出（すべてCSS/SVGで自作。外部素材なし）
   ========================================================= */

/* ---------- 背景：ベルベット＋光のぼかし＋ひし形模様 ---------- */
body {
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(181, 123, 255, .35), transparent 60%),
    radial-gradient(ellipse 60% 50% at 0% 100%, rgba(255, 47, 120, .22), transparent 60%),
    radial-gradient(ellipse 60% 50% at 100% 100%, rgba(77, 163, 255, .2), transparent 60%),
    linear-gradient(180deg, #160b2e 0%, #0b0a1c 60%, #07060f 100%);
  background-attachment: fixed;
}
#app::before {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 0; opacity: .07;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='48' height='48'%3E%3Cpath d='M24 2 L46 24 L24 46 L2 24 Z' fill='none' stroke='%23f6c453' stroke-width='1'/%3E%3Ccircle cx='24' cy='24' r='2' fill='%23f6c453'/%3E%3C/svg%3E");
}
#app::after {
  content: ""; position: fixed; inset: -20%; pointer-events: none; z-index: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(246,196,83,.10) 0 6%, transparent 7%),
    radial-gradient(circle at 75% 20%, rgba(255,79,184,.10) 0 5%, transparent 6%),
    radial-gradient(circle at 60% 80%, rgba(77,163,255,.10) 0 7%, transparent 8%),
    radial-gradient(circle at 15% 85%, rgba(61,220,132,.08) 0 5%, transparent 6%),
    radial-gradient(circle at 90% 65%, rgba(246,196,83,.08) 0 4%, transparent 5%);
  filter: blur(18px);
  animation: bokeh 26s ease-in-out infinite alternate;
}
@keyframes bokeh { 0% { transform: translate(0, 0) scale(1); } 50% { transform: translate(3%, -2%) scale(1.05); } 100% { transform: translate(-3%, 2%) scale(1); } }
#topbar, #screen { position: relative; z-index: 1; }

/* ---------- トップバー：電飾 ---------- */
#topbar {
  background: linear-gradient(180deg, rgba(40, 10, 60, .95), rgba(20, 8, 35, .85));
  border-bottom: 0;
  box-shadow: 0 4px 24px rgba(0,0,0,.5);
}
#topbar::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -4px; height: 8px;
  background: radial-gradient(circle, #fff6c8 0 2px, #f6c453 3px, transparent 4px) 0 0 / 22px 8px repeat-x;
  filter: drop-shadow(0 0 4px #f6c453);
  animation: bulbs 1.2s steps(2) infinite;
}
@keyframes bulbs { 50% { background-position: 11px 0; } }
#topbar .logo {
  background: linear-gradient(90deg, #fff3c4, #f6c453, #ff9de0, #f6c453, #fff3c4);
  background-size: 200% 100%;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: shine-text 4s linear infinite;
  text-shadow: none; filter: drop-shadow(0 0 8px rgba(246,196,83,.6));
}
@keyframes shine-text { to { background-position: -200% 0; } }

/* ---------- パネル：ガラス＋金の縁 ---------- */
.panel {
  background: linear-gradient(160deg, rgba(48, 30, 82, .88), rgba(18, 16, 40, .92));
  border: 1px solid rgba(246, 196, 83, .28);
  box-shadow: 0 20px 60px rgba(0,0,0,.5), inset 0 1px 0 rgba(255,255,255,.08), 0 0 40px rgba(181,123,255,.12);
  backdrop-filter: blur(6px);
}

/* ---------- ボタン：光が走る ---------- */
.btn { position: relative; overflow: hidden; }
.btn::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -60%; width: 40%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,.55), transparent);
  transform: skewX(-20deg); pointer-events: none; opacity: 0;
}
.btn:hover:not(:disabled)::after { animation: btn-shine .7s ease; opacity: 1; }
@keyframes btn-shine { from { left: -60%; } to { left: 130%; } }
.btn.big:not(.secondary):not(:disabled) { animation: btn-pulse 2.4s ease-in-out infinite; }
@keyframes btn-pulse { 50% { box-shadow: 0 4px 0 #8a5d0c, 0 0 26px rgba(246,196,83,.55); } }
.btn.danger.big:not(:disabled), .btn.blue.big:not(:disabled), .btn.green.big:not(:disabled) { animation: none; }

/* ---------- 待機画面 ---------- */
.standby .title {
  font-size: 84px; position: relative;
  background: linear-gradient(180deg, #fffbe6 0%, #ffe08a 35%, #f6c453 55%, #b4740c 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: none;
  filter: drop-shadow(0 0 18px rgba(246,196,83,.6)) drop-shadow(0 5px 0 #5a3a06);
  animation: title-flicker 6s infinite;
}
@keyframes title-flicker { 0%, 92%, 100% { opacity: 1; } 93% { opacity: .6; } 94% { opacity: 1; } 96% { opacity: .75; } }
.standby > .rays { position: absolute; left: 50%; top: 22%; width: 0; height: 0; pointer-events: none; z-index: 0; }
.standby > .rays::before {
  content: ""; position: absolute; left: -800px; top: -800px; width: 1600px; height: 1600px; border-radius: 50%;
  background: repeating-conic-gradient(from 0deg, rgba(246,196,83,.10) 0 6deg, transparent 6deg 15deg);
  -webkit-mask-image: radial-gradient(closest-side, #000 0 20%, transparent 75%);
  mask-image: radial-gradient(closest-side, #000 0 20%, transparent 75%);
  animation: spin 60s linear infinite;
}
.standby > *:not(.rays):not(.deco-chip):not(.chips-float) { position: relative; z-index: 1; }
@keyframes spin { to { transform: rotate(360deg); } }
.standby .sub { animation: sub-pulse 2s ease-in-out infinite; }
@keyframes sub-pulse { 50% { opacity: .65; } }
.chips-float { opacity: .35; filter: drop-shadow(0 0 10px currentColor); }
.chips-float:nth-child(4n+1) { color: #f6c453; }
.chips-float:nth-child(4n+2) { color: #ff4d5e; }
.chips-float:nth-child(4n+3) { color: #4da3ff; }
.chips-float:nth-child(4n+4) { color: #3ddc84; }

/* ---------- カジノチップ（装飾） ---------- */
.deco-chip {
  position: absolute; width: 74px; height: 74px; border-radius: 50%; pointer-events: none; z-index: 0;
  background:
    radial-gradient(circle, var(--c) 0 42%, #fff 43% 46%, var(--c) 47% 60%, transparent 61%),
    repeating-conic-gradient(from 0deg, #fff 0 15deg, var(--c) 15deg 45deg);
  box-shadow: 0 6px 16px rgba(0,0,0,.5), inset 0 0 0 3px rgba(0,0,0,.25);
  animation: chip-float 7s ease-in-out infinite;
}
@keyframes chip-float { 0%, 100% { transform: translateY(0) rotate(0deg); } 50% { transform: translateY(-24px) rotate(160deg); } }

/* ---------- ゲーム選択カード ---------- */
.game-card {
  background: linear-gradient(150deg, var(--g1, rgba(255,255,255,.1)), var(--g2, rgba(255,255,255,.02)));
  border: 2px solid rgba(255,255,255,.12);
  animation: card-in .5s ease backwards;
}
.game-card:nth-child(1) { --g1: rgba(255,79,184,.35); --g2: rgba(77,30,120,.35); animation-delay: .05s; }
.game-card:nth-child(2) { --g1: rgba(61,220,132,.28); --g2: rgba(10,60,40,.35); animation-delay: .1s; }
.game-card:nth-child(3) { --g1: rgba(255,77,94,.28); --g2: rgba(80,10,30,.35); animation-delay: .15s; }
.game-card:nth-child(4) { --g1: rgba(77,163,255,.28); --g2: rgba(10,30,80,.35); animation-delay: .2s; }
.game-card:nth-child(5) { --g1: rgba(246,196,83,.3); --g2: rgba(80,50,10,.35); animation-delay: .25s; }
.game-card:nth-child(6) { --g1: rgba(244,143,177,.3); --g2: rgba(90,20,60,.35); animation-delay: .3s; }
@keyframes card-in { from { opacity: 0; transform: translateY(20px) scale(.96); } }
.game-card::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -60%; width: 35%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,.25), transparent);
  transform: skewX(-20deg); pointer-events: none;
}
.game-card:hover::after { animation: btn-shine .8s ease; }
.game-card .icon { font-size: 54px; filter: drop-shadow(0 0 14px rgba(255,255,255,.35)); transition: transform .2s; }
.game-card:hover .icon { transform: scale(1.12) rotate(-6deg); }
.game-card .name { text-shadow: 0 2px 8px rgba(0,0,0,.6); }
.game-card .tag { animation: tag-pulse 1.2s ease-in-out infinite; box-shadow: 0 0 16px rgba(255,77,94,.7); }
@keyframes tag-pulse { 50% { transform: scale(1.1); } }

/* ---------- テーブル：ベルベット＋金の縁 ---------- */
.table-felt {
  position: relative;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 .18 0'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E"),
    radial-gradient(ellipse at 50% 40%, #1f8f5c 0%, #136b43 40%, #0a4229 80%, #062a1a 100%);
  border: 12px solid transparent;
  border-image: linear-gradient(135deg, #7a4a1c, #c58a3a 20%, #5a3210 40%, #b37a30 60%, #4a2b12 80%, #c58a3a) 1;
  border-radius: 0;
  box-shadow: inset 0 0 0 3px rgba(246,196,83,.55), inset 0 0 80px rgba(0,0,0,.65), 0 20px 50px rgba(0,0,0,.6), 0 0 40px rgba(246,196,83,.15);
}
.table-felt::before {
  content: "♠ IT部 CASINO ♥"; position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  font-size: 46px; font-weight: 900; letter-spacing: .2em; color: rgba(255,255,255,.05); white-space: nowrap; pointer-events: none;
}

/* ---------- カードの裏面：自作の模様 ---------- */
.pcard.back {
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16'%3E%3Cpath d='M8 0 L16 8 L8 16 L0 8 Z' fill='none' stroke='%23ffd27a' stroke-opacity='.55' stroke-width='1'/%3E%3Ccircle cx='8' cy='8' r='1.5' fill='%23ffd27a' fill-opacity='.6'/%3E%3C/svg%3E"),
    radial-gradient(circle at 50% 50%, #c4213a, #7a0f22);
  border: 3px solid #fff;
  box-shadow: inset 0 0 0 2px #c4213a, inset 0 0 0 4px rgba(255,210,122,.6), 0 3px 8px rgba(0,0,0,.45);
}
.pcard { background: linear-gradient(160deg, #ffffff 0%, #f6f1e4 70%, #e8dfc8 100%); }
.pcard.win { animation: win-glow 1s ease-in-out infinite; }
@keyframes win-glow { 50% { box-shadow: 0 0 0 4px #fff, 0 0 36px var(--gold); transform: translateY(-6px); } }
.hana.back {
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14'%3E%3Ccircle cx='7' cy='7' r='3' fill='none' stroke='%23ffb0b0' stroke-opacity='.35'/%3E%3C/svg%3E"),
    linear-gradient(160deg, #5a1414, #2a0606);
}

/* ---------- 大きなバナー（大富豪の 革命！ など） ---------- */
.big-banner {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; pointer-events: none; z-index: 5;
  font-size: 84px; font-weight: 900; letter-spacing: .05em; opacity: 0;
  background: linear-gradient(180deg, #fffbe6, #f6c453 60%, #b4740c); -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 0 20px rgba(246,196,83,.8)) drop-shadow(0 4px 0 #5a3a06);
}
.big-banner.show { animation: banner-pop 1.3s ease forwards; }
@keyframes banner-pop { 0% { opacity: 0; transform: scale(2.2) rotate(-6deg); } 18% { opacity: 1; transform: scale(.95) rotate(0); } 28% { transform: scale(1.05); } 80% { opacity: 1; transform: scale(1); } 100% { opacity: 0; transform: scale(1.1); } }

/* ---------- 結果画面 ---------- */
.result > * { position: relative; z-index: 1; }
.result > .rays {
  position: absolute; left: 50%; top: 42%; width: 0; height: 0; z-index: 0; pointer-events: none;
}
.result > .rays::before {
  content: ""; position: absolute; left: -900px; top: -900px; width: 1800px; height: 1800px; border-radius: 50%;
  background: repeating-conic-gradient(from 0deg, var(--ray, rgba(246,196,83,.16)) 0 8deg, transparent 8deg 20deg);
  -webkit-mask-image: radial-gradient(closest-side, #000 0 15%, transparent 70%);
  mask-image: radial-gradient(closest-side, #000 0 15%, transparent 70%);
  animation: spin 30s linear infinite;
}
.result.lose > .rays { --ray: rgba(120,130,160,.08); }
.result.win > .rays { --ray: rgba(61,220,132,.2); }
.result.bigwin > .rays { --ray: rgba(246,196,83,.3); }
.result.bigwin > .rays::before { animation-duration: 12s; }
.result .label { text-shadow: 0 0 20px rgba(255,255,255,.3); }
.result .delta { animation: delta-pop .6s cubic-bezier(.2,1.6,.4,1) both; }
@keyframes delta-pop { from { transform: scale(.3); opacity: 0; } }
.result .stamp {
  font-size: 64px; font-weight: 900; letter-spacing: .08em; transform: rotate(-6deg); margin-bottom: 14px;
  background: linear-gradient(180deg, #fffbe6, #f6c453 55%, #b4740c); -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 0 16px rgba(246,196,83,.8)) drop-shadow(0 4px 0 #5a3a06);
  animation: stamp-in .5s cubic-bezier(.2,1.8,.4,1) both, stamp-glow 1.2s ease-in-out .5s infinite;
}
@keyframes stamp-in { from { transform: scale(3) rotate(-6deg); opacity: 0; } }
@keyframes stamp-glow { 50% { filter: drop-shadow(0 0 30px rgba(246,196,83,1)) drop-shadow(0 4px 0 #5a3a06); } }

/* ---------- コインのシャワー ---------- */
.coin {
  position: fixed; top: -40px; width: 30px; height: 30px; border-radius: 50%; pointer-events: none; z-index: 60;
  background: radial-gradient(circle at 35% 30%, #fffbe6 0 15%, #ffd65a 30%, #e09b1a 70%, #8a5d0c 100%);
  box-shadow: inset 0 0 0 3px rgba(138,93,12,.6), 0 2px 6px rgba(0,0,0,.4);
  animation: coin-fall linear forwards;
}
.coin::after { content: "¢"; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-weight: 900; color: #8a5d0c; font-size: 16px; }
@keyframes coin-fall { to { transform: translateY(112vh) rotateY(1080deg); } }

/* ---------- 賭け画面 ---------- */
.bet-amount {
  background: linear-gradient(180deg, #fffbe6, #f6c453 60%, #b4740c); -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 0 14px rgba(246,196,83,.5));
}
.bet-amount small { -webkit-text-fill-color: var(--muted); }
.sticky-actions { position: sticky; bottom: -24px; padding: 14px 0; margin-bottom: -10px; background: linear-gradient(180deg, transparent, rgba(18,16,40,.95) 30%); z-index: 2; }

/* ---------- トップ画面：はじめて / つづきから ---------- */
.entry-buttons { display: flex; gap: 28px; margin: 18px 0 8px; }
.entry-btn {
  position: relative; overflow: hidden; cursor: pointer; border: 0; border-radius: 22px; width: 340px; padding: 26px 20px 22px;
  color: #fff; font-family: inherit; text-align: center;
  box-shadow: 0 8px 0 rgba(0,0,0,.35), 0 18px 40px rgba(0,0,0,.45);
  transition: transform .12s, box-shadow .12s;
  animation: card-in .5s ease backwards;
}
.entry-btn.new { background: linear-gradient(160deg, #ff7ac6, #e0287f 55%, #8d0f4f); }
.entry-btn.cont { background: linear-gradient(160deg, #7cc4ff, #2a7fe0 55%, #123f8a); animation-delay: .1s; }
.entry-btn:hover { transform: translateY(-4px) scale(1.02); box-shadow: 0 12px 0 rgba(0,0,0,.35), 0 0 40px rgba(255,255,255,.25); }
.entry-btn:active { transform: translateY(4px); box-shadow: 0 2px 0 rgba(0,0,0,.35); }
.entry-btn::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -60%; width: 35%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,.4), transparent);
  transform: skewX(-20deg); animation: btn-shine 3.5s ease-in-out infinite;
}
.entry-icon { font-size: 44px; line-height: 1; margin-bottom: 6px; }
.entry-main { font-size: 40px; font-weight: 900; letter-spacing: .08em; text-shadow: 0 3px 0 rgba(0,0,0,.25); }
.entry-sub { font-size: 16px; opacity: .92; margin-top: 4px; }
.top3 { display: flex; gap: 18px; align-items: center; font-size: 18px; min-height: 28px; }
.top3-item { background: rgba(0,0,0,.35); border: 1px solid rgba(246,196,83,.3); border-radius: 999px; padding: 4px 14px; }
.top3-item b { color: var(--gold); }

/* ---------- 新規登録 / ログイン ---------- */
.auth-panel { width: min(620px, 100%); display: flex; flex-direction: column; gap: 6px; }
.auth-panel h2 { margin-bottom: 4px; }
.field-label { font-size: 15px; color: var(--muted); margin-top: 8px; }
.auth-input { width: 100% !important; font-size: 26px !important; padding: 12px 16px !important; }
.auth-input.secret { -webkit-text-security: disc; text-security: disc; letter-spacing: .1em; }
.field-msg { font-size: 15px; min-height: 20px; color: var(--muted); }
.field-msg.ok { color: var(--green); font-weight: 700; }
.field-msg.ng { color: var(--red); font-weight: 700; }
.show-pw { font-size: 15px; color: var(--muted); cursor: pointer; margin-top: 4px; }
.auth-panel .toggle { align-self: flex-start; margin-top: 8px; }
.switch-link { color: #9fd0ff; font-size: 16px; }
.field-msg.same { color: var(--gold); font-weight: 700; }