:root {
  --bg: #f3f7ff;
  --surface: #ffffff;
  --surface-soft: #eef5ff;
  --primary: #1f4ef5;
  --primary-dark: #163bcc;
  --text: #15213d;
  --muted: #60708d;
  --line: rgba(18, 32, 57, 0.08);
  --shadow: 0 24px 60px rgba(14, 29, 64, 0.12);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", sans-serif;
  background: linear-gradient(135deg, #eef5ff 0%, #f7f9ff 100%);
  color: var(--text);
}

a {
  color: inherit;
  text-decoration: none;
}

input, button {
  font: inherit;
}

.auth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 20px;
}

.auth-card {
  width: min(1100px, 100%);
  background: rgba(255,255,255,0.9);
  border: 1px solid var(--line);
  border-radius: 32px;
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  overflow: hidden;
}

.auth-visual {
  background: linear-gradient(160deg, #0d1830 0%, #18326b 100%);
  color: #fff;
  padding: 42px 36px;
  display: flex;
  align-items: center;
}

.brand-box {
  max-width: 400px;
}

.brand-row {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.7rem;
  margin-bottom: 20px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #2f65ff, #3adac0);
  box-shadow: 0 14px 30px rgba(41, 111, 255, 0.35);
}

.auth-visual h1 {
  margin: 0 0 16px;
  font-size: clamp(2.2rem, 3vw, 3.2rem);
  line-height: 1.05;
  letter-spacing: -0.06em;
}

.auth-visual p {
  margin: 0;
  color: rgba(255,255,255,0.75);
  font-size: 1.04rem;
  line-height: 1.7;
}

.auth-form-panel {
  padding: 42px 34px;
  background: rgba(255,255,255,0.94);
}

.form-header {
  margin-bottom: 26px;
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary);
}

.form-header h2 {
  margin: 0;
  font-size: clamp(2rem, 2vw, 2.4rem);
  letter-spacing: -0.05em;
}

.auth-form {
  display: grid;
  gap: 18px;
}

.two-col {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.auth-form label {
  display: grid;
  gap: 8px;
}

.auth-form span {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.auth-form input {
  width: 100%;
  border: 1px solid var(--line);
  background: #f9fbff;
  border-radius: 14px;
  padding: 14px 16px;
  font-size: 1rem;
  color: var(--text);
  outline: none;
  transition: 0.2s ease;
}

.auth-form input:focus {
  border-color: rgba(31, 78, 245, 0.5);
  box-shadow: 0 0 0 4px rgba(31,78,245,0.08);
}

.form-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.check-wrap {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.check-wrap input {
  width: 16px;
  height: 16px;
}

.form-row a {
  color: var(--primary);
  font-weight: 600;
}

.primary-btn {
  border: none;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), #4d75ff);
  color: #fff;
  padding: 15px 20px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 18px 28px rgba(31,78,245,0.2);
}

.secondary-btn {
  border: 1px solid rgba(31, 78, 245, 0.25);
  border-radius: 14px;
  background: rgba(31, 78, 245, 0.08);
  color: var(--primary);
  padding: 15px 20px;
  font-weight: 700;
  text-align: center;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.secondary-btn:hover {
  background: rgba(31, 78, 245, 0.14);
}

.auth-btn {
  width: 100%;
  margin-top: 8px;
}

.switch-link {
  margin-top: 22px;
  text-align: center;
  color: var(--muted);
  font-size: 0.96rem;
}

.demo-note {
  margin-top: 18px;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(31, 78, 245, 0.08);
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 700;
  text-align: center;
}

.switch-link a {
  color: var(--primary);
  font-weight: 700;
}

.auth-status {
  margin-top: 18px;
  padding: 12px 14px;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 600;
}

.auth-status.success {
  background: rgba(25, 179, 126, 0.12);
  color: #0d8a5f;
}

.auth-status.error {
  background: rgba(255, 109, 125, 0.12);
  color: #b92c42;
}

@media (max-width: 820px) {
  .auth-card {
    grid-template-columns: 1fr;
  }

  .auth-visual {
    min-height: 260px;
  }
}

@media (max-width: 520px) {
  .two-col {
    grid-template-columns: 1fr;
  }

  .auth-form-panel,
  .auth-visual {
    padding: 26px 20px;
  }

  .form-row {
    flex-direction: column;
    align-items: flex-start;
  }
}