:root {
    --primary: #152e48;
    --secondary: #1c3657;
    --background-dark: #03060a;
    --text-light: #f8f9fa;
    --primary-rgb: 21, 46, 72;
}
body {
    background-color: var(--background-dark);
    color: var(--text-light);
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    padding: 0;
    min-height: 100vh;
}
body.rotating-bg {
    background: linear-gradient(rgba(10,25,32,0.7), rgba(10,25,32,0.7)), url('/assets/backgrounds/random') no-repeat center center fixed;
    background-size: cover;
    transition: background-image 1s ease-in-out;
}
.navbar {
    background-color: rgba(0,0,0,0.8) !important;
    border-bottom: 2px solid var(--primary);
}
.navbar a {
    color: var(--text-light) !important;
}
.navbar a:hover {
    color: var(--secondary) !important;
}
.btn-primary {
    background-color: var(--primary);
    border-color: var(--primary);
    color: white;
}
.btn-primary:hover {
    background-color: var(--secondary);
    border-color: var(--secondary);
}
.card {
    background: rgba(20, 40, 50, 0.8);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    border-left: 4px solid var(--primary);
    backdrop-filter: blur(5px);
}
.flash.success {
    background: #2e7d32;
}
.flash.danger {
    background: #c62828;
}
.balance-badge {
    background: var(--primary);
    color: white;
    padding: 5px 10px;
    border-radius: 20px;
}
#miningModal {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--background-dark);
    border: 1px solid var(--primary);
    padding: 20px;
    box-shadow: 0 0 10px rgba(0,0,0,0.5);
    z-index: 10000;
    max-width: 400px;
    display: none;
    color: var(--text-light);
}
.ad-sidebar {
    margin-bottom: 20px;
}
.referral-link {
    background: #333;
    padding: 10px;
    border-radius: 5px;
    margin-top: 10px;
}
.flash-message {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
}
/* hCaptcha container */
.h-captcha {
    margin: 15px 0;
    border: 1px dashed var(--secondary);
    padding: 5px;
    background: rgba(0,0,0,0.2);
}
.fiat-value {
    font-size: 0.8em;
    color: #aaa;
}
/* Notification container */
.notification-container {
    border-left: 5px solid var(--primary);
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(10px);
}
.notification-item {
    border-bottom: 1px solid #444;
    padding-bottom: 10px;
}
.notification-item:last-child {
    border-bottom: none;
}