/**
 * ログイン前トップページ（背景: /images/top-page.png）
 */
html.landing-root {
  width: 100%;
  min-height: 100%;
  min-height: 100dvh;
  background-color: #a8d4f0;
}

html.landing-root::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  background-color: #a8d4f0;
  background-image: url("/images/top-page.png");
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
  pointer-events: none;
}

body.landing-page {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
  background: transparent;
  color: #0f172a;
  font-family: system-ui, -apple-system, sans-serif;
}

.landing-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.25rem 1.5rem;
  text-align: center;
}

.landing-panel {
  width: min(100%, 26rem);
  padding: 1.75rem 1.5rem 1.5rem;
  background: rgba(255, 255, 255, 0.92);
  border-radius: 16px;
  box-shadow: 0 12px 40px rgba(15, 23, 42, 0.12);
  backdrop-filter: blur(8px);
}

.landing-title {
  font-size: clamp(1.85rem, 4vw + 0.6rem, 2.5rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  margin: 0 0 0.35rem;
  color: #0f172a;
}

.landing-lead {
  margin: 0 0 1.75rem;
  color: #475569;
  font-size: 0.95rem;
  line-height: 1.55;
}

.landing-msg {
  margin: 0 0 1rem;
  font-size: 0.9rem;
}

.landing-msg.ok {
  color: #15803d;
}

.landing-start {
  display: inline-block;
  min-width: 12rem;
  padding: 0.85rem 2.5rem;
  border: none;
  border-radius: 999px;
  font-size: 1.05rem;
  font-weight: 700;
  text-decoration: none;
  color: #fff;
  cursor: pointer;
  background: linear-gradient(180deg, #2563eb 0%, #1d4ed8 100%);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
  transition: transform 0.12s ease, box-shadow 0.12s ease, filter 0.12s ease;
}

.landing-start:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.42);
}

.landing-start:active {
  transform: translateY(0);
}

.landing-footer {
  flex-shrink: 0;
  padding: 1.25rem 1rem 1.5rem;
  text-align: center;
  font-size: 0.72rem;
  line-height: 1.65;
  color: #334155;
  background: rgba(255, 255, 255, 0.9);
  border-top: 1px solid rgba(15, 23, 42, 0.08);
  backdrop-filter: blur(8px);
}

.landing-footer p {
  margin: 0 0 0.35rem;
}

.landing-footer-links {
  margin: 0.5rem 0;
}

.landing-footer a {
  color: #1d4ed8;
  text-decoration: none;
}

.landing-footer a:hover {
  text-decoration: underline;
}

.landing-footer-sep {
  margin: 0 0.35rem;
  opacity: 0.45;
}

/* 利用規約など長文ページ */
body.landing-page--terms .landing-main {
  justify-content: flex-start;
  padding-top: 1.5rem;
  padding-bottom: 1rem;
}

.landing-terms-panel {
  width: min(100%, 42rem);
  margin: 0 auto;
  padding: 1.5rem 1.35rem 1.35rem;
  text-align: left;
  background: rgba(255, 255, 255, 0.94);
  border-radius: 16px;
  box-shadow: 0 12px 40px rgba(15, 23, 42, 0.12);
  backdrop-filter: blur(8px);
}

.landing-back {
  margin: 0 0 1rem;
  font-size: 0.88rem;
}

.landing-back a {
  color: #1d4ed8;
  text-decoration: none;
}

.landing-back a:hover {
  text-decoration: underline;
}

.landing-terms-panel > h1 {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 0 0 0.5rem;
  color: #0f172a;
}

.landing-terms-meta {
  margin: 0 0 1.25rem;
  font-size: 0.85rem;
  color: #64748b;
  line-height: 1.55;
}

.landing-terms-body {
  font-size: 0.88rem;
  line-height: 1.7;
  color: #334155;
}

.landing-terms-body section {
  margin-bottom: 1.25rem;
}

.landing-terms-body h2 {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.45rem;
  color: #0f172a;
}

.landing-terms-body p,
.landing-terms-body ul {
  margin: 0 0 0.65rem;
}

.landing-terms-body ul {
  padding-left: 1.25rem;
}

.landing-terms-body li {
  margin-bottom: 0.35rem;
}

.landing-terms-body a {
  color: #1d4ed8;
  text-decoration: none;
}

.landing-terms-body a:hover {
  text-decoration: underline;
}

/* ログイン画面 + トップと同じフッター */
body.landing-page.login-page {
  flex-direction: column;
  justify-content: flex-start;
  align-items: stretch;
  padding: 0;
  color: #e6edf3;
}

body.landing-page.login-page .login-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
  padding: 1.5rem 1rem;
  box-sizing: border-box;
}

body.landing-page.login-page .login-card {
  width: 100%;
  background: rgba(22, 27, 34, 0.92);
  border: 1px solid rgba(48, 54, 61, 0.95);
  border-radius: 12px;
  padding: 1.35rem 1.25rem 1.25rem;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(6px);
}

body.landing-page.login-page .login-card h1 {
  margin: 0 0 0.8rem;
  font-size: 1.15rem;
  font-weight: 700;
  color: #e6edf3;
}

body.landing-page.login-page .login-row {
  margin-bottom: 0.8rem;
}

body.landing-page.login-page .login-row label {
  display: block;
  margin-bottom: 0.35rem;
  color: #8b949e;
  font-size: 0.9rem;
}

body.landing-page.login-page .login-row input {
  display: block;
  width: 100%;
  min-height: 2.75rem;
  box-sizing: border-box;
  border: 1px solid #30363d;
  border-radius: 8px;
  padding: 0.55rem 0.65rem;
  font-size: 1rem;
  line-height: 1.4;
  background: #0d1117;
  color: #e6edf3;
}

body.landing-page.login-page .msg {
  margin-bottom: 0.8rem;
  font-size: 0.9rem;
}

body.landing-page.login-page .msg.error {
  color: #f85149;
}

body.landing-page.login-page .msg.ok {
  color: #3fb950;
}

body.landing-page.login-page .login-card .btn-send {
  width: 100%;
  min-height: 2.75rem;
  margin-top: 0.25rem;
  font-size: 1rem;
}