/*
NOTE: This is just an experiment and
      could use some changes to improve performance:

https://x.com/actualTimWilson/status/1730753841795158313

See a production optimized version here: https://charmui.com
*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;700&display=swap');

body {
    font-family: Inter, sans-serif;
    /* 防止iOS Safari橡皮筋效果显示白色背景 */
    position: fixed;
    width: 100%;
    height: 100%;
    overflow: hidden;
    /* 防止滚动边界行为 */
    overscroll-behavior: none;
    -webkit-overflow-scrolling: touch;
    /* 确保背景色与特效一致 */
    background: #000;
}

/* 为主内容区域添加滚动 */
#main {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    /* 防止滚动边界行为 */
    overscroll-behavior: none;
    overscroll-behavior-y: none;
}

@keyframes jumbo {
    from {
        background-position: 50% 50%, 50% 50%;
    }
    to {
        background-position: 350% 50%, 350% 50%;
    }
}

/* New Styles for Form Isolation */
.box-main {
  position: relative;
  z-index: 1;
}

.jumbo {
  position: fixed;
  top: -10px;
  left: -10px;
  width: calc(100% + 20px);
  height: calc(100% + 20px);
  z-index: 0;
  /* 确保背景完全覆盖，防止橡皮筋效果露出白色 */
}

.jumbo {
    --stripes: repeating-linear-gradient(
        100deg,
        #fff 0%,
        #fff 7%,
        transparent 10%,
        transparent 12%,
        #fff 16%
    );
    --stripesDark: repeating-linear-gradient(
        100deg,
        #000 0%,
        #000 7%,
        transparent 10%,
        transparent 12%,
        #000 16%
    );
    --rainbow: repeating-linear-gradient(
        100deg,
        #60a5fa 10%,
        #e879f9 15%,
        #60a5fa 20%,
        #5eead4 25%,
        #60a5fa 30%
    );
    background-image: var(--stripes), var(--rainbow);
    background-size: 300%, 200%;
    background-position: 50% 50%, 50% 50%;

    filter: blur(10px) invert(100%);

    mask-image: radial-gradient(ellipse at 100% 0%, black 40%, transparent 70%);

    pointer-events: none;
}

.jumbo::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image: var(--stripes), var(--rainbow);
    background-size: 200%, 100%;
    animation: jumbo 60s linear infinite;
    background-attachment: fixed;
    mix-blend-mode: difference;
}

.dark .jumbo {
    background-image: var(--stripesDark), var(--rainbow);
    filter: blur(10px) opacity(50%) saturate(200%);
}
.dark .jumbo::after {
    background-image: var(--stripesDark), var(--rainbow);
}

.bg-white {
    --tw-bg-opacity: 1;
    background-color: rgb(255 255 255);
}