:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --ink: #102b23;
  --green: #176f54;
  --green-deep: #0d4938;
  --line: rgba(21, 78, 59, 0.18);
}

* { box-sizing: border-box; }

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background: #102c3d url("/login-bovino-desktop.png") center / cover fixed no-repeat;
}

button, input { font: inherit; }

.access-shell {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 100vh;
  background: linear-gradient(115deg, rgba(7, 29, 39, 0.25), rgba(9, 42, 35, 0.08));
}

.institutional-strip {
  display: grid;
  grid-template-columns: minmax(260px, 460px) 1fr;
  align-items: center;
  gap: clamp(18px, 4vw, 60px);
  width: min(1240px, calc(100% - 40px));
  margin: 18px auto 0;
  padding: 12px 22px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.75);
  box-shadow: 0 14px 42px rgba(4, 22, 29, 0.16);
}

.institutional-strip img { width: 100%; max-height: 48px; object-fit: contain; object-position: left center; }
.institutional-strip span { justify-self: end; color: #37564a; font-size: 0.82rem; font-weight: 800; letter-spacing: 0.08em; text-align: right; text-transform: uppercase; }

.access-stage {
  display: grid;
  grid-template-columns: minmax(250px, 440px) minmax(320px, 420px);
  align-items: center;
  justify-content: center;
  gap: clamp(20px, 6vw, 90px);
  padding: 42px 24px 28px;
}

.program-mark img {
  display: block;
  width: min(440px, 100%);
  filter: drop-shadow(0 18px 34px rgba(2, 18, 21, 0.2));
}

.access-card {
  padding: clamp(28px, 5vw, 46px);
  background: rgba(252, 254, 252, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.82);
  border-radius: 24px;
  box-shadow: 0 30px 70px rgba(3, 25, 30, 0.28);
  backdrop-filter: blur(16px);
}

.eyebrow { margin: 0 0 12px; color: var(--green); font-size: 0.72rem; font-weight: 850; letter-spacing: 0.16em; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(2.1rem, 5vw, 3.3rem); font-weight: 760; letter-spacing: -0.055em; line-height: 0.98; }
.lead { margin: 18px 0 28px; color: #597067; font-size: 0.97rem; line-height: 1.58; }
label { display: block; margin-bottom: 8px; color: #345047; font-size: 0.76rem; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; }

.code-field { display: grid; grid-template-columns: 1fr auto; border: 1px solid var(--line); border-radius: 12px; background: #fff; transition: border-color 160ms ease, box-shadow 160ms ease; }
.code-field:focus-within { border-color: rgba(23, 111, 84, 0.75); box-shadow: 0 0 0 4px rgba(23, 111, 84, 0.1); }
.code-field input { min-width: 0; height: 52px; padding: 0 14px; color: var(--ink); background: transparent; border: 0; outline: 0; }
.code-field button { padding: 0 14px; color: var(--green); background: transparent; border: 0; font-size: 0.76rem; font-weight: 800; cursor: pointer; }

.message { min-height: 22px; margin: 9px 0 5px; color: #a63d31; font-size: 0.82rem; }
.primary-action { display: flex; align-items: center; justify-content: space-between; width: 100%; min-height: 52px; padding: 0 18px; color: #fff; background: linear-gradient(135deg, var(--green), var(--green-deep)); border: 0; border-radius: 12px; box-shadow: 0 12px 25px rgba(16, 83, 62, 0.22); font-weight: 800; cursor: pointer; }
.primary-action i { font-size: 1.2rem; font-style: normal; }
.primary-action:disabled { cursor: wait; opacity: 0.72; }

.access-links { display: flex; flex-wrap: wrap; gap: 9px 18px; margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--line); }
.access-links a { color: #315f50; font-size: 0.8rem; font-weight: 750; text-decoration: none; }
.access-links a:hover { color: var(--green); text-decoration: underline; }

footer { padding: 0 24px 20px; color: rgba(255, 255, 255, 0.85); font-size: 0.74rem; letter-spacing: 0.08em; text-align: center; text-transform: uppercase; }

@media (max-width: 820px) {
  body { background-image: url("/login-bovino-mobile.jpeg"); }
  .institutional-strip { grid-template-columns: 1fr; gap: 8px; padding: 10px 15px; }
  .institutional-strip span { justify-self: start; text-align: left; }
  .access-stage { grid-template-columns: minmax(0, 420px); align-content: center; padding-top: 28px; }
  .program-mark { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}