:root {
  --bg: #efe4d5;
  --surface: rgba(255, 249, 240, 0.96);
  --text: #2c2016;
  --muted: #746354;
  --brand: #b68346;
  --brand-deep: #8b5b21;
  --border: rgba(78, 56, 35, 0.14);
  --shadow: 0 24px 60px rgba(60, 40, 20, 0.16);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: "Manrope", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(182, 131, 70, 0.12), transparent 24%),
    linear-gradient(135deg, #ead8c3 0%, var(--bg) 100%);
}

h1 { font-family: "Cormorant Garamond", serif; }
.admin-auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
}

.admin-auth-card {
  width: min(560px, 100%);
  padding: 2rem;
  border-radius: 2rem;
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.logo-mark {
  font-family: "Cormorant Garamond", serif;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

.eyebrow {
  display: inline-block;
  margin-top: 1.5rem;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  background: rgba(182, 131, 70, 0.12);
  color: var(--brand-deep);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.admin-auth-card h1 { font-size: clamp(2.6rem, 5vw, 4.4rem); margin: 1rem 0; line-height: 0.98; }
.form-control {
  min-height: 52px;
  border-radius: 1rem;
  border-color: rgba(78, 56, 35, 0.16);
}

.btn-brand {
  border: none;
  border-radius: 999px;
  padding: 0.95rem 1.2rem;
  background: linear-gradient(135deg, var(--brand), #d8af73);
  color: #fff;
  font-weight: 700;
}

.back-to-top {
  position: fixed;
  right: 1.2rem;
  bottom: 1.2rem;
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  background: var(--brand-deep);
  color: #fff;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transition: 0.25s ease;
}

.back-to-top.show { opacity: 1; visibility: visible; }