:root {
  --text: #18243b;
  --muted: #64748f;
  --surface: #ffffff;
  --line: #dbe5f5;
  --primary: #0a5bff;
  --primary-deep: #0a2f82;
  --shadow: 0 20px 48px rgba(11, 32, 74, 0.14);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Outfit", sans-serif;
  color: var(--text);
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 14%, #ffffff 0, #f1f4fb 42%),
    radial-gradient(circle at 90% 12%, #e7efff 0, transparent 42%),
    linear-gradient(160deg, #f1f4fb 0, #ecf2ff 100%);
}

.page {
  width: min(1100px, 92vw);
  margin: 0 auto;
  padding: 30px 0;
}

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

.brand {
  text-decoration: none;
  color: inherit;
  font-family: "Sora", sans-serif;
  font-size: 1.9rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-bubble {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: url("../assets/flatbuddy-logo.png") center/cover no-repeat;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn {
  border: none;
  border-radius: 999px;
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  padding: 11px 18px;
}

.theme-toggle {
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(10, 91, 255, 0.25);
  color: var(--primary-deep);
}

.btn-link {
  text-decoration: none;
  background: #fff;
  color: var(--primary);
  border: 1px solid rgba(10, 91, 255, 0.28);
}

.auth-wrap {
  margin-top: 24px;
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  background: var(--surface);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.auth-side {
  padding: 40px 30px;
  color: #fff;
  background:
    linear-gradient(145deg, rgba(8, 30, 74, 0.95), rgba(9, 74, 189, 0.95)),
    radial-gradient(circle at 12% 20%, rgba(19, 193, 163, 0.25), transparent 50%);
}

.auth-side h1 {
  font-family: "Sora", sans-serif;
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  line-height: 1.08;
}

.auth-side p {
  margin-top: 12px;
  color: #dbe7ff;
  max-width: 28ch;
}

.points {
  margin-top: 22px;
  display: grid;
  gap: 10px;
  font-size: 0.95rem;
}

.points span {
  display: block;
  background: rgba(255, 255, 255, 0.13);
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 12px;
  padding: 9px 10px;
}

.auth-form {
  padding: 38px 34px;
}

.auth-form h2 {
  font-family: "Sora", sans-serif;
  font-size: 1.9rem;
}

.auth-form p {
  color: var(--muted);
  margin-top: 6px;
}

.form {
  margin-top: 20px;
  display: grid;
  gap: 13px;
}

.form-group {
  display: grid;
  gap: 6px;
}

.form-group label {
  font-size: 0.86rem;
  color: #4f5f7e;
  font-weight: 600;
}

.form-group input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 13px;
  font: inherit;
  color: var(--text);
  background: #fbfdff;
  outline: none;
}

.form-group input:focus {
  border-color: rgba(10, 91, 255, 0.45);
}

.inline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 4px;
}

.inline a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
}

.submit-btn {
  margin-top: 4px;
  border: none;
  background: linear-gradient(130deg, #0a5bff, #0d75ff);
  color: #fff;
  border-radius: 12px;
  padding: 12px 14px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.auth-foot {
  margin-top: 12px;
  font-size: 0.93rem;
  color: var(--muted);
}

.auth-foot a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 700;
}

.form-message {
  margin-top: 8px;
  font-size: 0.88rem;
  font-weight: 600;
}

.form-message.error {
  color: #f97373;
}

.form-message.success {
  color: #22c55e;
}

.hidden {
  display: none;
}

.helper-text {
  color: var(--muted);
  font-size: 0.88rem;
  margin-top: 4px;
}

body[data-theme="dark"] {
  --text: #e2ebff;
  --muted: #9fb1d6;
  --surface: #13213a;
  --line: #2c3f66;
  --shadow: 0 22px 52px rgba(2, 7, 20, 0.45);
  background:
    radial-gradient(circle at 8% 12%, #18284a 0, #0c152b 42%),
    radial-gradient(circle at 90% 12%, #1c2f53 0, transparent 42%),
    linear-gradient(160deg, #0c152b 0, #111d36 100%);
}

body[data-theme="dark"] .theme-toggle,
body[data-theme="dark"] .btn-link {
  background: rgba(19, 33, 58, 0.85);
  color: #cfe0ff;
  border-color: rgba(128, 163, 235, 0.35);
}

body[data-theme="dark"] .auth-wrap {
  background: var(--surface);
}

body[data-theme="dark"] .form-group label {
  color: #9eb3dc;
}

body[data-theme="dark"] .form-group input {
  background: #162744;
  border-color: var(--line);
  color: #e6eeff;
}

@media (max-width: 900px) {
  .auth-wrap {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .auth-form,
  .auth-side {
    padding: 26px 18px;
  }
}