:root {
  --bg: #f4f8f4;
  --surface: #ffffff;
  --text: #10311f;
  --muted: #4b6656;
  --line: #d5e3d8;
  --green-1: #0f6a3b;
  --green-2: #2d8c57;
  --green-3: #dff5e6;
  --danger: #ad2f2f;
  --shadow: 0 16px 40px rgba(13, 64, 36, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Manrope", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 12%, #e8f6ec 0%, transparent 35%),
    radial-gradient(circle at 85% 22%, #edf8f0 0%, transparent 30%),
    linear-gradient(180deg, #f9fcfa 0%, #eef6f1 100%);
  min-height: 100vh;
}

.login-layout {
  width: min(1100px, 92vw);
  margin: 0 auto;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 1rem;
  align-items: center;
  padding: 1.2rem 0;
}

.intro-card,
.auth-card {
  border: 1px solid rgba(165, 191, 173, 0.4);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow);
  border-radius: 18px;
  padding: 1.2rem;
}

.brand {
  text-decoration: none;
  color: var(--text);
  font-family: "Plus Jakarta Sans", sans-serif;
  font-size: 1.1rem;
  font-weight: 800;
}

.kicker {
  margin: 1rem 0 0.6rem;
  color: var(--green-2);
  letter-spacing: 0.11em;
  font-size: 0.76rem;
  text-transform: uppercase;
  font-weight: 800;
}

h1,
h2 {
  margin-top: 0;
  line-height: 1.15;
}

h1 {
  font-family: "Plus Jakarta Sans", sans-serif;
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  margin-bottom: 0.8rem;
}

.intro-card p {
  color: var(--muted);
}

.demo-box {
  margin-top: 1rem;
  border: 1px dashed #b7d6c2;
  background: #f7fcf8;
  border-radius: 14px;
  padding: 0.85rem;
}

.demo-box h2 {
  font-size: 1rem;
  margin-bottom: 0.4rem;
}

.demo-box p {
  margin: 0.2rem 0;
}

.tabs {
  display: inline-flex;
  gap: 0.35rem;
  background: #f1f8f3;
  border: 1px solid #d8e8dd;
  border-radius: 999px;
  padding: 0.2rem;
}

.tab {
  border: 0;
  border-radius: 999px;
  padding: 0.45rem 0.8rem;
  font-weight: 700;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
}

.tab.is-active {
  background: linear-gradient(130deg, var(--green-1), var(--green-2));
  color: var(--surface);
}

.auth-form {
  margin-top: 0.9rem;
  display: grid;
  gap: 0.6rem;
}

.auth-form.is-hidden {
  display: none;
}

label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 600;
}

input {
  width: 100%;
  min-height: 44px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 0.45rem 0.6rem;
  font: inherit;
  color: var(--text);
}

input:focus-visible {
  outline: 2px solid rgba(15, 106, 59, 0.22);
  outline-offset: 1px;
}

.btn {
  border: 0;
  border-radius: 999px;
  padding: 0.62rem 0.95rem;
  font-weight: 700;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(130deg, var(--green-1), var(--green-2));
  color: var(--surface);
}

.status-text {
  margin: 0.7rem 0 0;
  min-height: 1.3rem;
  font-weight: 700;
  color: var(--green-1);
}

.status-text.error {
  color: var(--danger);
}

@media (max-width: 960px) {
  .login-layout {
    grid-template-columns: 1fr;
    align-items: start;
    padding: 0.9rem 0 1.2rem;
  }
}