:root {
  --primary: #064e3b;
  --accent: #10b981;
  --surface: #ffffff;
  --surface-subtle: #f8fafc;
  --text-main: #020617;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --danger: #dc2626;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: "Inter", sans-serif;
  color: var(--text-main);
  background: var(--surface-subtle);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
h1,
.heading {
  font-family: "Outfit", sans-serif;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  font-weight: 800;
}

nav {
  height: 80px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  background: var(--surface, #fff);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-inner img {
  height: 44px;
}
.nav-inner span {
  font-size: 1.1rem;
  color: var(--primary);
}

main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 20px;
}

.auth-card {
  background: var(--surface, #fff);
  border: 1px solid var(--border);
  border-top: 4px solid var(--accent);
  max-width: 420px;
  width: 100%;
  padding: 40px;
}

.auth-tag {
  font-size: 0.65rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 12px;
}
.auth-card h1 {
  font-size: 1.8rem;
  margin-bottom: 8px;
}
.auth-card p.subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 28px;
}

.error-banner {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: var(--danger);
  padding: 12px 16px;
  font-size: 0.85rem;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-size: 0.65rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.form-group input {
  width: 100%;
  padding: 13px 14px;
  border: 1px solid var(--border);
  background: var(--surface-subtle);
  font-family: inherit;
  font-size: 0.9rem;
  transition: border 0.2s;
}
.form-group input:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--surface, #fff);
}

.btn-submit {
  width: 100%;
  background: var(--primary);
  color: #fff;
  padding: 16px;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border: none;
  cursor: pointer;
  margin-top: 8px;
  transition: background 0.2s;
}
.btn-submit:hover {
  background: #053b2e;
}

.auth-footer {
  text-align: center;
  margin-top: 24px;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.auth-footer a {
  color: var(--primary);
  font-weight: 700;
  text-decoration: none;
}
.auth-footer a:hover {
  text-decoration: underline;
}

@media (max-width: 480px) {
  .auth-card {
    padding: 28px 22px;
  }
}

body.dark-mode {
  --surface: var(--dm-bg-surface);
  --surface-subtle: var(--dm-bg-app);
  --text-main: var(--dm-text-main);
  --text-muted: var(--dm-text-muted);
  --border: var(--dm-border);
  --primary: var(--dm-primary);
  --accent: var(--dm-accent);
}