* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; }
body { background-color: #0b0b0b; color: #ffffff; display: flex; justify-content: center; align-items: center; min-height: 100vh; }

.app-container {
    width: 100%;
    max-width: 420px;
    height: 100vh;
    background-color: #121212;
    position: relative;
    overflow-y: auto;
    box-shadow: 0 0 30px rgba(0,0,0,0.9);
    padding-bottom: 80px;
}

/* Custom Scrollbar */
.app-container::-webkit-scrollbar { width: 4px; }
.app-container::-webkit-scrollbar-thumb { background: #333; border-radius: 4px; }

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    background: rgba(18, 18, 18, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #1f1f1f;
    position: sticky;
    top: 0;
    z-index: 100;
}
.app-header .brand {
    font-family: 'Brush Script MT', cursive;
    font-size: 28px;
    color: #ffb300;
    text-shadow: 0 0 12px rgba(255, 179, 0, 0.3);
}
.app-header i { font-size: 18px; color: #ffb300; cursor: pointer; transition: transform 0.2s ease, color 0.2s ease; }
.app-header i:hover { transform: scale(1.15); color: #ffca28; }

/* WhatsApp Banner */
.whatsapp-banner {
    background: linear-gradient(135deg, #075e54, #128c7e);
    border-radius: 12px;
    padding: 14px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 15px;
    box-shadow: 0 4px 15px rgba(18, 140, 126, 0.25);
    border: 1px solid rgba(255,255,255,0.08);
}
.whatsapp-banner h4 { font-size: 12px; color: #fff; font-weight: 600; }
.banner-btn {
    background: #fff;
    color: #075e54;
    border: none;
    padding: 6px 14px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
}
.banner-btn:hover { background: #f8f9fa; transform: translateY(-2px); box-shadow: 0 4px 10px rgba(0,0,0,0.2); }
.banner-btn:active { transform: scale(0.95); }

/* Wallet Card */
.wallet-card {
    background: #181818;
    border-radius: 10px;
    padding: 12px 18px;
    margin: 0 15px 20px 15px;
    border: 1px solid #222;
    box-shadow: 0 4px 10px rgba(0,0,0,0.4);
}
.wallet-card span { font-size: 11px; color: #888; text-transform: uppercase; letter-spacing: 0.5px; }
.wallet-card h3 { font-size: 20px; color: #ffb300; margin-top: 2px; font-weight: 700; text-shadow: 0 0 8px rgba(255,179,0,0.2); }

/* Section Titles */
.section-title {
    font-size: 11px;
    color: #ffb300;
    background: rgba(255, 179, 0, 0.06);
    border: 1px solid rgba(255, 179, 0, 0.25);
    display: inline-block;
    padding: 4px 10px;
    border-radius: 6px;
    margin: 0 15px 10px 15px;
    letter-spacing: 1px;
    font-weight: 600;
}

/* Grid Cards with Premium Smooth Hover Effects */
.grid-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    padding: 0 15px 20px 15px;
}
.card-box {
    background: #171717;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid #252525;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}
.card-box:hover {
    border-color: #ffb300;
    transform: translateY(-4px);
    box-shadow: 0 8px 22px rgba(255, 179, 0, 0.18);
    background: #1c1c1c;
}
.card-box:active {
    transform: scale(0.96);
}
.card-box img {
    width: 100%;
    height: 105px;
    object-fit: cover;
    transition: transform 0.35s ease;
}
.card-box:hover img {
    transform: scale(1.06);
}
.card-title {
    padding: 10px;
    font-size: 12px;
    font-weight: 600;
    background: #141414;
    color: #ddd;
    text-align: center;
    border-top: 1px solid #202020;
    transition: color 0.2s ease;
}
.card-box:hover .card-title {
    color: #ffb300;
}

/* Modern Bottom Navigation with Smooth Hover Glow */
.bottom-nav {
    position: fixed;
    bottom: 0;
    width: 100%;
    max-width: 420px;
    display: flex;
    justify-content: space-around;
    background: rgba(18, 18, 18, 0.98);
    backdrop-filter: blur(12px);
    border-top: 1px solid #222;
    padding: 8px 0;
    z-index: 100;
    box-shadow: 0 -5px 20px rgba(0,0,0,0.8);
}
.nav-item {
    text-align: center;
    color: #777;
    font-size: 11px;
    cursor: pointer;
    transition: all 0.25s ease;
    flex: 1;
    padding: 4px 0;
}
.nav-item i { 
    display: block; 
    font-size: 17px; 
    margin-bottom: 3px; 
    transition: transform 0.25s ease, color 0.25s ease; 
}
.nav-item:hover { 
    color: #bbb; 
}
.nav-item:hover i {
    transform: translateY(-2px);
    color: #ffca28;
}
.nav-item.active { 
    color: #ffb300; 
    font-weight: 600; 
}
.nav-item.active i { 
    transform: translateY(-3px) scale(1.1); 
    filter: drop-shadow(0 0 8px rgba(255,179,0,0.6)); 
}