* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(var(--blue-deep-rgb), 0.28), transparent 34rem),
    radial-gradient(circle at bottom right, rgba(var(--cyan-rgb), 0.22), transparent 32rem),
    var(--bg-deep);
}

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px;
}

.login-card {
  width: min(460px, 100%);
  padding: 28px;
  border: 1px solid rgba(var(--blue-rgb), 0.28);
  border-radius: 24px;
  background: var(--bg);
  box-shadow: 0 22px 80px rgba(0, 0, 0, 0.42), 0 0 45px rgba(var(--blue-deep-rgb), 0.16);
  backdrop-filter: blur(14px);
}

.back-link {
  display: inline-flex;
  margin-bottom: 24px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
}

.back-link:hover {
  color: #fff;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}

.brand-mark {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--blue-deep), var(--blue));
  box-shadow: 0 0 28px rgba(var(--blue-rgb), 0.38);
  font-size: 1.45rem;
  font-weight: 900;
}

.brand h1 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 1.35rem;
  letter-spacing: -0.03em;
}

.brand p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.login-copy {
  margin-bottom: 18px;
}

.login-copy h2 {
  margin: 0 0 8px;
  font-size: 1.65rem;
  letter-spacing: -0.04em;
}

.login-copy p {
  margin: 0;
  color: var(--muted);
}

.login-buttons {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.login-btn {
  width: 100%;
  min-height: 56px;
  border: 1px solid rgba(var(--blue-rgb), 0.22);
  border-radius: 15px;
  background: var(--bg-panel);
  color: #fff;
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 0 16px;
  font-size: 1rem;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.14s ease, border-color 0.14s ease, background 0.14s ease;
}

.login-btn:hover {
  transform: translateY(-1px);
  border-color: rgba(var(--blue-rgb), 0.7);
  background: rgba(25, 48, 94, 0.95);
}

.icon {
  width: 30px;
  height: 30px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-weight: 950;
}

.google .icon {
  background: linear-gradient(135deg, #4285f4, #34a853, #fbbc05, #ea4335);
}

.outlook .icon {
  background: linear-gradient(135deg, #0067b8, #00a2ed);
}

.proton .icon {
  background: linear-gradient(135deg, #6d4aff, #9b6dff, #27d0ff);
}

.arrow {
  margin-left: auto;
  opacity: 0.75;
}

.admin-note {
  margin-top: 18px;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(var(--blue-rgb), 0.10);
  border: 1px solid rgba(var(--blue-rgb), 0.18);
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.45;
}

.login-google-wrap {
  width: 100%;
  min-height: 56px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.login-google-wrap > div {
  width: 100%;
  display: flex;
  justify-content: center;
}

.email-provider .icon {
  background: linear-gradient(135deg, var(--blue-deep), var(--blue));
}

.site-footer {
  text-align: center;
  margin-top: 24px;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  opacity: 0.7;
}