:root {
  --ink: #0b1424;
  --navy: #1a2b4a;
  --ocean: #4a7fa5;
  --cream: #f0ede6;
  --paper: #fdfcf9;
  --gold: #c4b49b;
  --gold-dark: #8b6f47;
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  background: linear-gradient(135deg, rgba(11, 20, 36, .95), rgba(26, 43, 74, .84)), url("../img/lighthouse2.jpg") center / cover;
  color: var(--paper);
  font-family: Inter, system-ui, sans-serif;
}

.admin-login {
  display: grid;
  min-height: 100vh;
  place-items: center;
  align-content: center;
  gap: 1.5rem;
  padding: 2rem 1.25rem;
}

.admin-login__brand {
  display: flex;
  align-items: center;
  gap: .75rem;
  color: var(--paper);
  font-family: "Playfair Display", Georgia, serif;
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.1;
  text-decoration: none;
}

.admin-login__mark {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 1px solid rgba(255,255,255,.5);
  border-radius: 50%;
  color: var(--gold);
  font-family: Inter, sans-serif;
  font-size: .7rem;
  font-weight: 900;
  letter-spacing: .08em;
}

.admin-login__panel {
  width: min(100%, 440px);
  padding: clamp(1.75rem, 5vw, 2.75rem);
  border: 1px solid rgba(255,255,255,.2);
  background: rgba(253,252,249,.97);
  box-shadow: 0 24px 80px rgba(0,0,0,.35);
  color: var(--ink);
}

.admin-login__eyebrow {
  margin: 0 0 .65rem;
  color: var(--gold-dark);
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .15em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  color: var(--navy);
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 2.5rem;
  line-height: 1;
}

.admin-login__intro { margin: 1rem 0 1.75rem; color: #4b535d; line-height: 1.6; }
.admin-login__field { margin-top: 1rem; }
.admin-login__field label { display: block; margin-bottom: .4rem; color: var(--navy); font-size: .86rem; font-weight: 800; }
.admin-login__field input { width: 100%; padding: .75rem .8rem; border: 1px solid rgba(26,43,74,.3); border-radius: 0; background: white; color: var(--ink); font: inherit; }
.admin-login__field input:focus { outline: 3px solid rgba(74,127,165,.35); border-color: var(--ocean); }
.admin-login__help { margin: .85rem 0 1.5rem; font-size: .85rem; }
.admin-login__help a, .admin-login__return { color: inherit; text-underline-offset: .16em; }
.admin-login button { width: 100%; padding: .85rem 1rem; border: 0; background: var(--navy); color: var(--paper); cursor: pointer; font: inherit; font-size: .78rem; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
.admin-login button:hover { background: var(--ink); }
.admin-login__error { margin: 0 0 1rem; padding: .75rem; border-left: 4px solid #a02f2f; background: #f7e8e8; color: #662020; font-size: .9rem; line-height: 1.45; }
.admin-login__return { color: rgba(255,255,255,.85); font-size: .85rem; }