:root {
  /* Colors - Industrial / High-Energy Aesthetic */
  --color-bg: #0a0a0a;
  --color-surface: #121212;
  --color-primary: #dfff00; /* Neon Lime/Yellow */
  --color-primary-rgb: 223, 255, 0;
  --color-text-main: #ffffff;
  --color-text-muted: #888888;
  --color-border: #222222;
  --color-error: #ff4444;
  
  /* Typography */
  --font-display: 'Inter', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  
  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 48px;
  --space-2xl: 80px;

  /* Misc */
  --radius-sm: 4px;
  --radius-md: 8px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text-main);
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
}

/* Layout */
.login-container {
  display: flex;
  width: 100%;
  min-height: 100vh;
}

/* Left Side: Visual/Branding */
.brand-side {
  flex: 1.2;
  position: relative;
  background: linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1534438327276-14e5300c3a48?q=80&w=2070&auto=format&fit=crop'); /* Handled via placeholder-image logic in HTML but adding a fallback vibe */
  background-size: cover;
  background-position: center;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-2xl);
  overflow: hidden;
}

.brand-side::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 30%, rgba(var(--color-primary-rgb), 0.15) 0%, transparent 50%);
  pointer-events: none;
}

.brand-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
}

.brand-logo {
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: -0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-xl);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.brand-logo svg {
  color: var(--color-primary);
}

.brand-tagline {
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 0.9;
  text-transform: uppercase;
  margin-bottom: var(--space-lg);
  font-style: italic;
}

.brand-tagline span {
  display: block;
  -webkit-text-stroke: 1px var(--color-text-main);
  color: transparent;
}

.brand-description {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  max-width: 400px;
  line-height: 1.5;
}

/* Right Side: Form */
.form-side {
  flex: 0.8;
  background-color: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
  border-left: 1px solid var(--color-border);
  position: relative;
}

.form-wrapper {
  width: 100%;
  max-width: 400px;
}

.form-header {
  margin-bottom: var(--space-xl);
}

.form-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: var(--space-xs);
}

.form-subtitle {
  color: var(--color-text-muted);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
  color: var(--color-text-muted);
}

.input-container {
  position: relative;
}

.form-input {
  width: 100%;
  background-color: #1a1a1a;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  color: var(--color-text-main);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: var(--transition);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary);
}

.btn {
  width: 100%;
  padding: 16px;
  background-color: var(--color-primary);
  color: #000;
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 800;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.btn:hover {
  background-color: #eaff4d;
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(223, 255, 0, 0.2);
}

.btn:active {
  transform: translateY(0);
}

.form-footer {
  margin-top: var(--space-xl);
  text-align: center;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.form-link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
}

.form-link:hover {
  text-decoration: underline;
}

/* Secondary Auth Options */
.divider {
  display: flex;
  align-items: center;
  margin: var(--space-xl) 0;
  color: var(--color-border);
}

.divider::before, .divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background-color: var(--color-border);
}

.divider span {
  padding: 0 var(--space-md);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}

.social-auth {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.btn-secondary {
  background-color: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-main);
  padding: 12px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  transition: var(--transition);
}

.btn-secondary:hover {
  background-color: var(--color-border);
}

/* Utilities */
.placeholder-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #222;
  z-index: 1;
  background-size: cover;
  background-position: center;
}

.brand-side .placeholder-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,10,10,1) 0%, rgba(10,10,10,0.4) 50%, rgba(10,10,10,0.2) 100%);
}

/* Specific background for hero */
.brand-hero-bg {
  background-image: url('https://images.unsplash.com/photo-1540497077202-7c8a3999166f?q=80&w=2070&auto=format&fit=crop');
}

.forgot-password-link {
  font-size: 0.75rem;
  text-transform: uppercase;
}

.form-label-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

@media (max-width: 1024px) {
  .brand-side {
    display: none;
  }
  .form-side {
    flex: 1;
    background-color: var(--color-bg);
  }
}