* { box-sizing: border-box; }

:root {
  --black: #111111;
  --deep: #0b0f17;
  --gold: #c8a96a;
  --white: #ffffff;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--white);
}

.login-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at 22% 24%, rgba(200,169,106,.17), transparent 30%),
    linear-gradient(115deg, rgba(5,8,14,.97) 0%, rgba(8,12,19,.88) 42%, rgba(8,12,19,.52) 72%, rgba(8,12,19,.32) 100%),
    url("../images/paddock-top.jpg") center / cover no-repeat;
}

.login-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 480px;
  align-items: center;
  gap: clamp(40px, 7vw, 96px);
  padding: clamp(32px, 6vw, 80px) clamp(24px, 8vw, 120px);
}

.login-brand { max-width: 760px; }

.brand-kicker {
  margin: 0 0 28px;
  color: rgba(255,255,255,.70);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .34em;
}

.brand-logo-image {
  display: block;
  width: min(640px, 82vw);
  max-height: 190px;
  object-fit: contain;
  object-position: left center;
  filter: drop-shadow(0 24px 46px rgba(0,0,0,.55));
}

.brand-portal {
  margin-top: 42px;
  font-size: clamp(44px, 6vw, 86px);
  font-weight: 300;
  letter-spacing: .25em;
  text-transform: uppercase;
}

.brand-copy {
  margin: 36px 0 0;
  color: rgba(255,255,255,.85);
  font-size: clamp(17px, 1.7vw, 23px);
  letter-spacing: .18em;
}

.login-card {
  width: 100%;
  padding: 52px 48px 38px;
  border: 1px solid rgba(200,169,106,.32);
  border-radius: 32px;
  background: rgba(10,13,20,.84);
  backdrop-filter: blur(22px);
  box-shadow: 0 36px 100px rgba(0,0,0,.46);
}

.login-label {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.login-card h1 {
  margin: 0;
  font-size: 38px;
  font-weight: 800;
  letter-spacing: .08em;
}

.login-line {
  width: 100%;
  height: 1px;
  margin: 24px 0;
  background: linear-gradient(90deg, transparent, rgba(200,169,106,.75), transparent);
}

.login-description {
  margin: 0 0 34px;
  color: rgba(255,255,255,.72);
  line-height: 1.85;
}

.login-form { display: grid; gap: 10px; }

.login-form label {
  margin-top: 12px;
  color: rgba(255,255,255,.72);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .14em;
}

.login-form input {
  width: 100%;
  height: 64px;
  padding: 0 20px;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 20px;
  background: rgba(255,255,255,.08);
  color: #ffffff;
  font-size: 17px;
  outline: none;
  transition: border-color .18s ease, background .18s ease, box-shadow .18s ease;
}

.login-form input::placeholder { color: rgba(255,255,255,.36); }

.login-form input:focus {
  border-color: rgba(200,169,106,.95);
  background: rgba(255,255,255,.12);
  box-shadow: 0 0 0 4px rgba(200,169,106,.12);
}

.login-form button {
  height: 64px;
  margin-top: 26px;
  border: none;
  border-radius: 22px;
  background: linear-gradient(135deg, #fff, #f2dfb6);
  color: #111111;
  font-size: 16px;
  font-weight: 900;
  letter-spacing: .08em;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease;
}

.login-form button:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(200,169,106,.18);
}

.login-help {
  margin: 24px 0 0;
  color: rgba(255,255,255,.55);
  font-size: 12px;
  line-height: 1.7;
  text-align: center;
}

@media (max-width: 980px) {
  .login-shell { grid-template-columns: 1fr; }
  .login-card { max-width: 560px; }
}

@media (max-width: 560px) {
  .login-shell { padding: 28px 18px; }
  .login-card { padding: 34px 24px 28px; border-radius: 26px; }
  .brand-copy { letter-spacing: .08em; }
}

/* ログイン画面では共通ヘッダーを非表示 */
.login-page .paddock-header {
    display: none !important;
}