:root {
  color-scheme: dark;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  background-color: #0e2016;
  color: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top left, rgba(255, 255, 255, 0.12), transparent 24%),
              radial-gradient(circle at bottom right, rgba(66, 213, 116, 0.16), transparent 18%),
              linear-gradient(180deg, #08120d 0%, #0d2517 100%);
}

button,
input {
  font: inherit;
}

.page-container {
  display: grid;
  min-height: 100vh;
  grid-template-columns: minmax(320px, 440px) 1fr;
}

.hero-panel,
.login-panel {
  padding: 48px;
}

.hero-panel {
  display: flex;
  align-items: center;
}

.hero-content {
  max-width: 460px;
}

.brand-mark {
  width: 56px;
  height: 56px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  display: grid;
  place-items: center;
  margin-bottom: 32px;
}

.hero-content h1 {
  margin: 0;
  font-size: 3rem;
  line-height: 1.05;
  letter-spacing: -0.05em;
}

.hero-content p {
  margin-top: 20px;
  color: rgba(255, 255, 255, 0.76);
  max-width: 380px;
  line-height: 1.8;
}

.login-panel {
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: rgba(17, 48, 29, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 28px;
  padding: 36px;
  box-shadow: 0 36px 120px rgba(0, 0, 0, 0.18);
}

.login-header h2 {
  margin: 0;
  font-size: 2rem;
}

.login-header p {
  margin: 12px 0 0;
  color: rgba(255, 255, 255, 0.7);
}

.login-form {
  margin-top: 28px;
}

.input-group {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

.input-group label {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.95rem;
}

.input-group input {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: #ffffff;
  border-radius: 16px;
  padding: 16px 18px;
  outline: none;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.input-group input:focus {
  border-color: rgba(118, 195, 152, 0.9);
  background: rgba(255, 255, 255, 0.08);
}

.btn {
  width: 100%;
  border: none;
  border-radius: 16px;
  padding: 16px 20px;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #00c67a 0%, #00704a 100%);
  color: #ffffff;
  box-shadow: 0 18px 30px rgba(0, 198, 122, 0.24);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: #ffffff;
}

.btn:hover {
  transform: translateY(-1px);
}

.login-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.95rem;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
}

.checkbox input {
  width: 16px;
  height: 16px;
}

.login-footer a {
  color: #ffffff;
  text-decoration: none;
}

.signup-prompt {
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.96rem;
}

.signup-prompt a {
  color: #00c67a;
  text-decoration: none;
}

.login-notice {
  margin-top: 24px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.94rem;
}

.error-message {
  margin-top: 12px;
  color: #f28b82;
  font-weight: 600;
}

.success-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 40px;
}

.success-card {
  max-width: 520px;
  width: 100%;
  background: rgba(17, 48, 29, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 28px;
  padding: 40px;
  text-align: center;
}

.success-card h1 {
  margin: 0 0 18px;
  font-size: 2.4rem;
}

.success-card p {
  margin: 0 0 24px;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.8;
}

@media (max-width: 980px) {
  .page-container {
    grid-template-columns: 1fr;
  }

  .hero-panel,
  .login-panel {
    padding: 28px;
  }
}

@media (max-width: 640px) {
  .page-container {
    min-height: auto;
  }

  .hero-content h1 {
    font-size: 2.5rem;
  }

  .login-card {
    padding: 28px;
  }
}