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

/* พื้นหลัง */
body {
    min-height: 100vh;
    font-family: "Prompt", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: url("images/bg.jpg") no-repeat center top;
    background-size: cover;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 20px 10px 40px;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 900px;
    text-align: center;
    position: relative;
    z-index: 10;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

/* โลโก้ */
.logo {
    width: 120px;
    margin: 0 auto 10px;
}

.site-name {
    color: #ffffff;
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 18px;
    text-shadow: 0 0 8px rgba(0, 0, 0, 0.7);
}

.signup-link {
    text-decoration: none;
    display: block;
    max-width: 650px;
    margin: 0 auto 18px;
}

.signup-bar {
    background: #ffffff;
    border-radius: 999px;
    padding: 10px 18px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 0 18px rgba(0, 0, 0, 0.35);
    transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.signup-link:hover .signup-bar {
    transform: translateY(-1px);
    box-shadow: 0 0 22px rgba(0, 0, 0, 0.45);
}

.signup-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid #4a148c;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: #4a148c;
    background: #f3e5f5;
    flex-shrink: 0;
}

.signup-text {
    font-size: 15px;
    font-weight: 500;
    color: #333333;
}

.signup-extra {
    margin-left: auto;
    font-size: 14px;
    color: #ff9800;
}

.block {
    margin-bottom: 20px;
}

.banner {
    width: 100%;
    max-width: 650px;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.4);
    margin: 0 auto;
}

/* Light Orbs - แสงลอยไปมา */
.light-orb {
    position: fixed;
    border-radius: 50%;
    pointer-events: none;
    z-index: 1;
    mix-blend-mode: screen;
}

@keyframes float {
    0% {
        transform: translate(0, 0) scale(1);
        opacity: 0.3;
    }

    25% {
        transform: translate(100px, 50px) scale(1.2);
        opacity: 0.6;
    }

    50% {
        transform: translate(-50px, 100px) scale(0.9);
        opacity: 0.3;
    }

    75% {
        transform: translate(-100px, -50px) scale(1.1);
        opacity: 0.7;
    }

    100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.3;
    }
}

/* หิมะกองด้านล่าง - เล็กลง */
/* Sun Rays - ?????? */
.sun-rays-container {
    position: fixed;
    top: 0;
    right: 0;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    z-index: 1;
    pointer-events: none;
    mix-blend-mode: overlay;
}

.sun-ray {
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(to bottom, rgba(255, 223, 128, 0.4) 0%, rgba(255, 255, 255, 0) 60%);
    transform-origin: center;
    clip-path: polygon(50% 50%, 45% 100%, 55% 100%);
    animation: rotateRays 60s linear infinite;
    opacity: 0.6;
}

@keyframes rotateRays {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}