* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: #1d1d1f;
  background: linear-gradient(to bottom, #f2efee, #e8e3e1);
}

.login-page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
}

.login-card {
  background: rgba(255,255,255,0.86);
  padding: 72px 64px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.logo-text {
  font-size: 22px;
  letter-spacing: 4px;
  font-weight: 700;
}

.brand p,
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 12px;
  color: #777;
}

h1 {
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1;
  margin: 36px 0 18px;
}

.intro {
  font-size: 18px;
  line-height: 1.55;
  max-width: 560px;
  color: #444;
}

form {
  margin-top: 34px;
  max-width: 430px;
}

label {
  display: block;
  margin: 18px 0 8px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: #555;
}

input {
  width: 100%;
  padding: 16px 18px;
  border: 1px solid #d8d2cf;
  border-radius: 14px;
  font-size: 17px;
  background: #fff;
}

button,
.primary-link {
  display: inline-block;
  margin-top: 26px;
  padding: 16px 26px;
  border: 0;
  border-radius: 999px;
  background: #111;
  color: #fff;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-decoration: none;
  cursor: pointer;
}

.help {
  margin-top: 28px;
  max-width: 500px;
  line-height: 1.5;
  color: #555;
}

.help a {
  color: #111;
  font-weight: 700;
}

.visual-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 64px;
  background:
    radial-gradient(circle at 70% 35%, rgba(255,255,255,0.9), transparent 35%),
    linear-gradient(135deg, #ece8e6, #d9d2ce);
}

.visual-box {
  width: min(620px, 100%);
  aspect-ratio: 16 / 10;
  border-radius: 34px;
  padding: 48px;
  background: rgba(255,255,255,0.72);
  box-shadow: 0 30px 80px rgba(0,0,0,0.12);
  display: flex;
  flex-direction: column;
  justify-content: end;
}

.visual-box h2 {
  font-size: clamp(30px, 4vw, 54px);
  line-height: 1;
  margin: 0 0 16px;
}

.visual-box p {
  font-size: 18px;
  line-height: 1.5;
  max-width: 460px;
}

.alert {
  max-width: 430px;
  background: #fff2f2;
  border: 1px solid #e2b5b5;
  color: #8a1f1f;
  padding: 14px 16px;
  border-radius: 12px;
  margin-top: 20px;
}

.reserved-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 28px 48px;
  background: rgba(255,255,255,0.7);
}

.logout {
  color: #111;
  text-decoration: none;
  font-weight: 700;
}

.reserved-content {
  max-width: 1180px;
  margin: 0 auto;
  padding: 80px 32px;
}

.welcome {
  max-width: 760px;
}

.welcome p {
  font-size: 20px;
  line-height: 1.55;
  color: #444;
}

.cards {
  margin-top: 60px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.cards article {
  background: rgba(255,255,255,0.78);
  padding: 30px;
  border-radius: 24px;
  box-shadow: 0 18px 50px rgba(0,0,0,0.08);
}

.cards h2 {
  margin-top: 0;
}

@media (max-width: 900px) {
  .login-page {
    grid-template-columns: 1fr;
  }

  .login-card {
    padding: 44px 24px;
  }

  .visual-panel {
    padding: 24px;
  }

  .visual-box {
    min-height: 320px;
    padding: 32px;
  }

  .reserved-header {
    padding: 22px 24px;
  }

  .cards {
    grid-template-columns: 1fr;
  }
}