:root {
  --paper: #FBFAF8;
  --ink: #16161D;
  --muted: #6B6B76;
  --line: #E9E7E0;
  --surface: #FFFFFF;
  --accent: #FF5436;
  --cefr-a2: #F4B940;
  --cefr-b1: #1FB57A;
  --cefr-b2: #2F6BFF;
  --radius-chip: 0.5rem;
  --radius-card: 0.9rem;
  --shadow-soft: 0 6px 24px rgba(22, 22, 29, 0.06);
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Newsreader", Georgia, serif;
}

* { box-sizing: border-box; }

body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  margin: 0;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

:where(a, button):focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ── Login ── */

.login {
  max-width: 22rem;
  margin: 18vh auto 0;
  padding: 0 1.5rem;
  text-align: center;
}

.login h1 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 2.4rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0 0 0.25rem;
  line-height: 1.1;
}

.login form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.login input {
  font: inherit;
  font-family: var(--font-body);
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius-chip);
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  width: 100%;
  transition: border-color 0.15s;
}

.login input:focus {
  outline: none;
  border-color: var(--accent);
}

.login input::placeholder {
  color: var(--muted);
}

.login button {
  font: inherit;
  font-family: var(--font-body);
  font-weight: 500;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-chip);
  border: none;
  background: var(--accent);
  color: var(--surface);
  cursor: pointer;
  letter-spacing: 0.01em;
  transition: opacity 0.15s;
}

.login button:hover {
  opacity: 0.88;
}

.err {
  color: var(--accent);
  min-height: 1.2em;
  font-size: 0.9rem;
  margin: 0;
}

@media (max-width: 480px) {
  .login {
    margin-top: 10vh;
  }
}