* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg: #0f0f14;
    --bg2: #16161e;
    --orange: #f59e0b;
    --orange-dark: #d97706;
    --purple: #8b5cf6;
    --dark: #0a0a0f;
    --white: #eaeaf0;
    --dim: #6b6b80;
    --border: #22222e;
    --green: #22c55e;
    --red: #ef4444;
}

body { font-family: 'Manrope', sans-serif; background: var(--bg); color: var(--white); min-height: 100vh; }
.container { max-width: 900px; margin: 0 auto; padding: 0 20px; }

.bar { background: var(--dark); border-bottom: 1px solid var(--border); }
.bar-inner { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.logo { text-decoration: none; color: var(--white); font-size: 1.15rem; }
.logo i { color: var(--orange); margin-right: 4px; }
.logo b { color: var(--orange); }
.bal { font-weight: 700; font-size: 1rem; color: var(--orange); background: rgba(245,158,11,0.1); padding: 6px 16px; border-radius: 8px; border: 1px solid rgba(245,158,11,0.2); }

.page { padding: 40px 0 60px; }
.hero-sec { text-align: center; margin-bottom: 32px; }
.hero-sec h1 { font-size: 2.4rem; font-weight: 800; margin-bottom: 10px; }
.accent { color: var(--orange); }
.hero-sec p { color: var(--dim); font-size: 0.95rem; max-width: 500px; margin: 0 auto 20px; }
.main-btn { padding: 14px 32px; background: linear-gradient(135deg, var(--orange), var(--orange-dark)); color: var(--dark); border: none; border-radius: 12px; font-weight: 700; font-size: 0.95rem; cursor: pointer; font-family: inherit; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.panel { background: var(--bg2); border: 1px solid var(--border); border-radius: 14px; padding: 24px; margin-bottom: 16px; }
.panel h3 { font-size: 1rem; font-weight: 700; margin-bottom: 12px; }
.panel h3 i { color: var(--orange); margin-right: 8px; }
.panel p { font-size: 0.85rem; color: var(--dim); margin-bottom: 12px; line-height: 1.5; }
.panel code { display: block; background: var(--dark); padding: 10px 14px; border-radius: 8px; font-size: 0.75rem; color: var(--orange); margin-top: 8px; overflow-x: auto; }
.panel em { color: var(--orange); font-style: normal; font-weight: 600; }

.coupon-list, .shop-list { display: flex; flex-direction: column; gap: 8px; }
.coupon-item, .shop-item { display: flex; align-items: center; justify-content: space-between; padding: 12px 14px; background: var(--dark); border-radius: 10px; font-size: 0.85rem; }
.shop-item div { display: flex; flex-direction: column; gap: 2px; }
.shop-item small { font-size: 0.75rem; color: var(--dim); }
.price { font-size: 0.8rem; color: var(--orange); font-weight: 600; }
.featured { border: 1px solid rgba(245,158,11,0.3); }

.sm-btn { padding: 8px 16px; background: var(--border); color: var(--white); border: none; border-radius: 8px; font-family: inherit; font-weight: 600; font-size: 0.8rem; cursor: pointer; }
.sm-btn:hover { background: var(--purple); }
.sm-btn.gold { background: var(--orange); color: var(--dark); }

.hint-panel { border-left: 3px solid var(--orange); }

.flag-panel { max-width: 600px; margin: 0 auto; }
.flag-row { display: flex; gap: 10px; }
.flag-row input { flex: 1; padding: 12px 16px; background: var(--dark); border: 1px solid var(--border); border-radius: 10px; color: var(--white); font-family: inherit; font-size: 0.9rem; outline: none; }
.flag-row input:focus { border-color: var(--orange); }
.flag-row button { padding: 12px 24px; background: var(--orange); color: var(--dark); border: none; border-radius: 10px; font-weight: 700; cursor: pointer; font-family: inherit; }
.ok { margin-top: 12px; padding: 12px; background: rgba(34,197,94,0.08); border: 1px solid rgba(34,197,94,0.2); border-radius: 8px; color: var(--green); font-weight: 600; font-size: 0.85rem; }
.fail { margin-top: 12px; padding: 12px; background: rgba(239,68,68,0.08); border: 1px solid rgba(239,68,68,0.2); border-radius: 8px; color: var(--red); font-size: 0.85rem; }

@media (max-width: 700px) {
    .grid-2 { grid-template-columns: 1fr; }
    .flag-row { flex-direction: column; }
    .hero-sec h1 { font-size: 1.8rem; }
}