:root {
  --bg-top: #edf5f2;
  --bg-bottom: #d9e7e2;
  --ink: #163133;
  --muted: #4a6466;
  --card: #f8fbfb;
  --card-line: #bfd6d1;
  --brand-teal: #0f766e;
  --brand-green: #059669;
  --chip: #dcefeb;
  --chip-ink: #12514c;
  --button-text: #063128;
  --button-bg: #ffffff;
  --button-line: #9ec0bb;
  --button-hover: #f0fbf8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Plus Jakarta Sans", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 15% 18%, rgba(255, 255, 255, 0.65), transparent 42%),
    radial-gradient(circle at 84% 82%, rgba(15, 118, 110, 0.16), transparent 37%),
    linear-gradient(165deg, var(--bg-top), var(--bg-bottom));
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

.login-card {
  position: relative;
  width: min(100%, 560px);
  overflow: hidden;
  border: 1px solid var(--card-line);
  border-radius: 22px;
  padding: 1.45rem;
  background: var(--card);
  box-shadow: 0 26px 60px rgba(11, 64, 61, 0.16);
}

.card-noise {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(120deg, rgba(5, 150, 105, 0.08), transparent 42%),
    repeating-linear-gradient(
      45deg,
      rgba(16, 100, 95, 0.04) 0,
      rgba(16, 100, 95, 0.04) 2px,
      transparent 2px,
      transparent 10px
    );
}

.card-header,
.intro-title,
.intro,
.google-btn,
.allowed-note,
.auth-message {
  position: relative;
  z-index: 1;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.9rem;
  margin-bottom: 1.15rem;
}

.brand-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
}

.brand-mark {
  width: 3rem;
  height: 3rem;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 8px 20px rgba(10, 120, 105, 0.24);
}

.brand-mark svg {
  width: 100%;
  height: 100%;
  display: block;
}

.brand-copy strong,
.brand-copy small {
  display: block;
}

.brand-copy strong {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.brand-copy small {
  margin-top: 0.1rem;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.account-chip {
  border: 1px solid rgba(18, 81, 76, 0.18);
  border-radius: 999px;
  padding: 0.35rem 0.62rem;
  background: var(--chip);
  color: var(--chip-ink);
  font-size: 0.73rem;
  font-weight: 700;
}

.intro-title {
  margin: 0;
  font-family: "Barlow Condensed", sans-serif;
  font-size: clamp(2rem, 4vw, 2.7rem);
  line-height: 1;
  letter-spacing: 0.01em;
}

.intro {
  margin: 0.45rem 0 1.2rem;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.45;
}

.google-btn {
  width: 100%;
  min-height: 3.2rem;
  border: 1px solid var(--button-line);
  border-radius: 12px;
  padding: 0.8rem 1rem;
  background: var(--button-bg);
  color: var(--button-text);
  font-family: "Barlow Condensed", sans-serif;
  font-size: 1.65rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.62rem;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.google-btn:hover {
  background: var(--button-hover);
  border-color: #7faeaa;
  transform: translateY(-1px);
}

.google-btn:disabled {
  opacity: 0.72;
  cursor: progress;
}

.google-btn svg {
  width: 1.08rem;
  height: 1.08rem;
  flex: 0 0 auto;
}

.allowed-note {
  margin: 0.95rem 0 0;
  border-left: 4px solid #119d83;
  padding: 0.72rem 0.78rem;
  border-radius: 0 10px 10px 0;
  background: #eaf8f4;
  color: #255756;
  font-size: 0.91rem;
  line-height: 1.45;
}

.allowed-note strong {
  color: #0b3e39;
}

.auth-message {
  min-height: 1.25rem;
  margin: 0.65rem 0 0;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 700;
}

.auth-message.is-error {
  color: #b43c36;
}

.auth-message.is-success {
  color: #1d6e5c;
}

@media (max-width: 640px) {
  .login-shell {
    padding: 1rem;
  }

  .login-card {
    border-radius: 16px;
    padding: 1.1rem;
  }

  .card-header {
    display: grid;
    gap: 0.65rem;
  }

  .account-chip {
    width: fit-content;
  }

  .google-btn {
    font-size: 1.45rem;
  }
}