@font-face {
  font-family: "KaiU";
  src: url("/assets/fonts/kaiu.ttf") format("truetype");
  font-weight: normal;
  font-style: normal;
}

:root {
  --charcoal: #050505;
  --ivory: #f5f5f5;
  --ivory-soft: #c9baba;
  --gold: #8d00c5;
  --gold-soft: rgba(174, 0, 255, 0.22);
  --glass-bg: rgba(0, 0, 0, 0.22);
  --glass-bg-strong: rgba(13, 12, 18, 0.48);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-highlight: rgba(255, 255, 255, 0.14);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
  --glass-shadow-hover: 0 12px 48px rgba(0, 0, 0, 0.55),
    0 0 0 0.5px rgba(255, 255, 255, 0.1) inset,
    0 0 60px rgba(174, 0, 255, 0.1);
  --radius-lg: 20px;
  --radius-md: 14px;
}

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

html,
body {
  max-width: 100%;
  overflow-x: hidden;
}

html {
  scrollbar-width: none;
}

body::-webkit-scrollbar {
  display: none;
}

body {
  min-height: 100vh;
  background: var(--charcoal);
  color: var(--ivory);
  font-family: "General Sans", "Inter", sans-serif;
  line-height: 1.5;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -3;
  background-image:
    linear-gradient(
      145deg,
      rgba(72, 24, 110, 0),
      rgba(26, 10, 44, 0) 42%,
      rgba(32, 12, 56, 0)
    ),
    url("/assets/13bg.png");
  background-size: cover;
  background-position: center;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 50% 46%, rgba(0, 0, 0, 0.28), rgba(0, 0, 0, 0.84) 72%),
    radial-gradient(circle at 24% 18%, rgba(255, 255, 255, 0.05), transparent 44%),
    radial-gradient(circle at 78% 72%, rgba(255, 255, 255, 0.05), transparent 52%);
}

.container {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: center;
  padding: clamp(56px, 9vw, 92px) 18px;
}

.card {
  width: min(760px, 100%);
  padding: clamp(24px, 4vw, 42px);
  border-radius: var(--radius-lg);
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border-highlight);
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

h1 {
  font-family: "General Sans", "Inter", "Noto Sans JP", sans-serif;
  font-weight: 600;
  letter-spacing: 0.03em;
  font-size: clamp(2rem, 5.8vw, 3.2rem);
  line-height: 1.06;
  margin-bottom: 8px;
}

.subtitle {
  margin-bottom: 28px;
  color: var(--ivory-soft);
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  text-transform: uppercase;
}

form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hidden {
  display: none !important;
}

.auth-box {
  margin-bottom: 22px;
  padding: 14px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(174, 0, 255, 0.28);
  background: rgba(14, 8, 24, 0.5);
}

#discord-login {
  width: 100%;
  margin-top: 0;
}

.discord-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.discord-name {
  flex: 1;
}

#discord-logout {
  margin-top: 0;
  padding: 9px 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  font-size: 12px;
  letter-spacing: 0.05em;
}

#discord-avatar {
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  object-fit: cover;
  flex-shrink: 0;
}

.discord-name {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--ivory);
  letter-spacing: 0.04em;
}

label {
  font-size: 11px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ivory-soft);
}

input,
textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  background: rgba(5, 5, 5, 0.55);
  color: var(--ivory);
  line-height: 1.5;
  transition: border-color 200ms ease, box-shadow 200ms ease;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: rgba(174, 0, 255, 0.52);
  box-shadow: 0 0 0 3px var(--gold-soft);
}

textarea {
  min-height: 120px;
  resize: vertical;
}

button {
  margin-top: 8px;
  padding: 14px;
  border: 1px solid rgba(174, 0, 255, 0.35);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #6f42ff, var(--gold));
  color: var(--ivory);
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

button:hover {
  transform: translateY(-1px);
  border-color: rgba(174, 0, 255, 0.62);
  box-shadow: var(--glass-shadow-hover);
}

button:active {
  transform: translateY(0);
}

.footer {
  margin-top: 26px;
  font-size: 12px;
  text-align: center;
  color: var(--ivory-soft);
  letter-spacing: 0.04em;
}

.footer a {
  color: var(--gold);
  text-decoration: none;
}

.footer a:hover {
  color: #b83cf9;
}

@media (max-width: 720px) {
  .container {
    padding: 24px 10px 34px;
  }

  .card {
    border-radius: 16px;
    padding: 22px 16px;
  }

  h1 {
    font-size: clamp(1.65rem, 9vw, 2.3rem);
  }
}