:root {
    --bg-color: #0b141a;
    --card-bg: rgba(14, 26, 36, 0.45);
    --text-main: #e2f1f8;
    --text-muted: #7fa4b6;
    --accent: #00d2ff;
    --accent-glow: rgba(0, 210, 255, 0.35);
    --online: #00e676;
    --offline: #ff3d00;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.bg-video {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    object-fit: cover;
    z-index: -10;
    pointer-events: none;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    position: relative;
    overflow-x: hidden;
    perspective: 1200px;
}

body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: radial-gradient(circle at center, rgba(11, 20, 26, 0.45) 0%, rgba(11, 20, 26, 0.85) 100%);
    z-index: -9;
    pointer-events: none;
}

.container {
    width: 100%;
    max-width: 900px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    position: relative;
    z-index: 1;
    align-items: stretch;
}

@media (min-width: 768px) {
    .container {
        grid-template-columns: 1fr 1fr;
    }
}

.toast {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(-40px);
    background: rgba(0, 210, 255, 0.9);
    backdrop-filter: blur(8px);
    color: #0b141a;
    padding: 12px 24px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 700;
    box-shadow: 0 10px 30px rgba(0, 210, 255, 0.3);
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}