/* BorderGlow — React Bits port */

.border-glow-card {
  --edge-proximity: 0;
  --cursor-angle: 45deg;
  --edge-sensitivity: 30;
  --color-sensitivity: calc(var(--edge-sensitivity) + 20);
  --border-radius: 28px;
  --glow-padding: 40px;
  --cone-spread: 25;
  --fill-opacity: 0.5;

  position: relative;
  border-radius: var(--border-radius);
  isolation: isolate;
  transform: translate3d(0, 0, 0.01px);
  display: grid;
  border: 1px solid rgb(255 255 255 / 12%);
  background: var(--card-bg, #120f17);
  overflow: visible;
  box-shadow:
    rgba(0, 0, 0, 0.08) 0 1px 2px,
    rgba(0, 0, 0, 0.08) 0 2px 4px,
    rgba(0, 0, 0, 0.06) 0 4px 8px,
    rgba(0, 0, 0, 0.04) 0 8px 16px;
}

.border-glow-card::before,
.border-glow-card::after,
.border-glow-card > .edge-light {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  transition: opacity 0.25s ease-out;
  z-index: 0;
  pointer-events: none;
}

.border-glow-card:not(:hover):not(.sweep-active)::before,
.border-glow-card:not(:hover):not(.sweep-active)::after,
.border-glow-card:not(:hover):not(.sweep-active) > .edge-light {
  opacity: 0;
  transition: opacity 0.75s ease-in-out;
}

.border-glow-card::before {
  border: 1px solid transparent;
  background:
    linear-gradient(var(--card-bg, #120f17) 0 100%) padding-box,
    linear-gradient(rgb(255 255 255 / 0%) 0% 100%) border-box,
    var(--gradient-one) border-box,
    var(--gradient-two) border-box,
    var(--gradient-three) border-box,
    var(--gradient-four) border-box,
    var(--gradient-five) border-box,
    var(--gradient-six) border-box,
    var(--gradient-seven) border-box,
    var(--gradient-base) border-box;
  opacity: calc((var(--edge-proximity) - var(--color-sensitivity)) / (100 - var(--color-sensitivity)));
  mask-image:
    conic-gradient(
      from var(--cursor-angle) at center,
      black calc(var(--cone-spread) * 1%),
      transparent calc((var(--cone-spread) + 15) * 1%),
      transparent calc((100 - var(--cone-spread) - 15) * 1%),
      black calc((100 - var(--cone-spread)) * 1%)
    );
}

.border-glow-card::after {
  border: 1px solid transparent;
  background:
    var(--gradient-one) padding-box,
    var(--gradient-two) padding-box,
    var(--gradient-three) padding-box,
    var(--gradient-four) padding-box,
    var(--gradient-five) padding-box,
    var(--gradient-six) padding-box,
    var(--gradient-seven) padding-box,
    var(--gradient-base) padding-box;
  mask-image:
    linear-gradient(to bottom, black, black),
    radial-gradient(ellipse at 50% 50%, black 40%, transparent 65%),
    radial-gradient(ellipse at 66% 66%, black 5%, transparent 40%),
    radial-gradient(ellipse at 33% 33%, black 5%, transparent 40%),
    radial-gradient(ellipse at 66% 33%, black 5%, transparent 40%),
    radial-gradient(ellipse at 33% 66%, black 5%, transparent 40%),
    conic-gradient(from var(--cursor-angle) at center, transparent 5%, black 15%, black 85%, transparent 95%);
  mask-composite: subtract, add, add, add, add, add;
  opacity: calc(var(--fill-opacity) * (var(--edge-proximity) - var(--color-sensitivity)) / (100 - var(--color-sensitivity)));
  mix-blend-mode: soft-light;
}

.border-glow-card > .edge-light {
  inset: calc(var(--glow-padding) * -1);
  z-index: 1;
  mask-image:
    conic-gradient(
      from var(--cursor-angle) at center,
      black 2.5%,
      transparent 10%,
      transparent 90%,
      black 97.5%
    );
  opacity: calc((var(--edge-proximity) - var(--edge-sensitivity)) / (100 - var(--edge-sensitivity)));
  mix-blend-mode: plus-lighter;
}

.border-glow-card > .edge-light::before {
  content: "";
  position: absolute;
  inset: var(--glow-padding);
  border-radius: inherit;
  box-shadow:
    inset 0 0 0 1px var(--glow-color),
    inset 0 0 1px 0 var(--glow-color-60),
    inset 0 0 3px 0 var(--glow-color-50),
    inset 0 0 6px 0 var(--glow-color-40),
    inset 0 0 15px 0 var(--glow-color-30),
    inset 0 0 25px 2px var(--glow-color-20),
    inset 0 0 50px 2px var(--glow-color-10),
    0 0 1px 0 var(--glow-color-60),
    0 0 3px 0 var(--glow-color-50),
    0 0 6px 0 var(--glow-color-40),
    0 0 15px 0 var(--glow-color-30),
    0 0 25px 2px var(--glow-color-20),
    0 0 50px 2px var(--glow-color-10);
}

.border-glow-inner {
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: visible;
  z-index: 2;
  border-radius: inherit;
}

/* ── 聊天输入框 ── */
.border-glow-card--composer {
  --card-bg: color-mix(in srgb, var(--bg-elevated) 90%, transparent);
  --border-radius: 20px;
  --glow-padding: 32px;
  width: 100%;
  max-width: var(--chat-max-w);
  margin: 0 auto;
}

.border-glow-card--composer .composer__bar,
#chat-form.composer__bar.auth-card--composer {
  background: transparent;
  border: 0;
  border-radius: inherit;
  box-shadow: none;
  width: 100%;
  max-width: none;
  padding: 20px 18px 16px;
}

.composer-glow-wrap {
  width: 100%;
}

/* ── 认证卡片 ── */
.border-glow-card--auth {
  --card-bg: color-mix(in srgb, var(--bg-elevated) 90%, transparent);
  --border-radius: 20px;
  --glow-padding: 32px;
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
}

.border-glow-card--auth .auth-card {
  background: transparent;
  border: 0;
  border-radius: inherit;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  width: 100%;
  max-width: none;
}

@media (prefers-reduced-motion: reduce) {
  .border-glow-card::before,
  .border-glow-card::after,
  .border-glow-card > .edge-light {
    display: none;
  }
}