/*
  Network Search - Main Styles
  Galacticos AI Brand Guidelines Implementation
  Following brandbook specifications for charcoal/neon aesthetic
*/

/* ========================================
   CSS Custom Properties (Brand Variables)
   ======================================== */
:root {
  /* Background Colors */
  --color-bg-primary: #1a1a1a;
  --color-bg-secondary: #0f0f0f;
  --color-bg-elevated: #242424;
  --color-bg-hover: #2a2a2a;
  --color-border: #333333;

  /* Accent Colors */
  --color-accent-cyan: #00d9ff;
  --color-accent-blue: #0088ff;
  --color-accent-cyan-dark: #00a8cc;
  --color-accent-blue-dark: #0066cc;

  /* Text Colors */
  --color-text-primary: #ffffff;
  --color-text-secondary: #cccccc;
  --color-text-tertiary: #999999;
  --color-text-muted: #666666;
  --color-text-placeholder: #555555;

  /* Semantic Colors */
  --color-success: #00ff88;
  --color-warning: #ffaa00;
  --color-error: #ff4466;
  --color-info: #00d9ff;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Consolas', 'Monaco', 'Courier New', monospace;

  /* Spacing */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
}

/* ========================================
   Global Resets & Base Styles
   ======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  font-weight: 600;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1rem; }

a {
  color: var(--color-accent-cyan);
  text-decoration: none;
  transition: color 0.2s ease-out;
}

a:hover {
  color: var(--color-accent-cyan-dark);
}

/* ========================================
   Buttons (Neon Glow Style)
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  font-family: var(--font-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: none;
  border-radius: 0;
  cursor: pointer;
  transition: all 0.2s ease-out;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent-cyan);
  color: var(--color-bg-secondary);
  box-shadow: 0 0 20px rgba(0, 217, 255, 0.3);
}

.btn-primary:hover {
  background: var(--color-accent-cyan-dark);
  box-shadow: 0 0 30px rgba(0, 217, 255, 0.6), 0 0 60px rgba(0, 217, 255, 0.3);
}

.btn-primary:active {
  background: #008fb3;
  box-shadow: 0 0 15px rgba(0, 217, 255, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--color-accent-cyan);
  border: 1px solid var(--color-accent-cyan);
  box-shadow: 0 0 15px rgba(0, 217, 255, 0.2);
}

.btn-secondary:hover {
  background: rgba(0, 217, 255, 0.1);
  box-shadow: 0 0 25px rgba(0, 217, 255, 0.4);
}

.btn-danger {
  background: var(--color-error);
  color: var(--color-bg-secondary);
  box-shadow: 0 0 20px rgba(255, 68, 102, 0.3);
}

.btn-danger:hover {
  background: #cc3355;
  box-shadow: 0 0 30px rgba(255, 68, 102, 0.6);
}

/* ========================================
   Input Fields (Sharp, Technical)
   ======================================== */
.form-input,
input[type="text"],
input[type="password"],
input[type="email"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  font-family: var(--font-primary);
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 0;
  transition: all 0.2s ease-out;
}

.form-input::placeholder,
input::placeholder,
textarea::placeholder {
  color: var(--color-text-placeholder);
}

.form-input:hover,
input:hover,
textarea:hover,
select:hover {
  border-color: #444444;
}

.form-input:focus,
input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-accent-cyan);
  box-shadow: 0 0 20px rgba(0, 217, 255, 0.3);
}

.form-input.error,
input.error {
  border-color: var(--color-error);
  box-shadow: 0 0 20px rgba(255, 68, 102, 0.3);
}

/* ========================================
   Form Groups
   ======================================== */
.form-group {
  margin-bottom: var(--spacing-6);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-2);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
}

/* ========================================
   Alert Messages (Flash Messages)
   ======================================== */
.alerts-container {
  position: fixed;
  top: var(--spacing-6);
  right: var(--spacing-6);
  z-index: 1000;
  max-width: 400px;
  width: 100%;
}

.alert {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: 0.75rem 1rem;
  margin-bottom: var(--spacing-3);
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid;
  border-radius: 0;
  border-left-width: 3px;
  animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.alert-success {
  background: rgba(0, 255, 136, 0.1);
  border-color: rgba(0, 255, 136, 0.3);
  border-left-color: var(--color-success);
  color: var(--color-success);
}

.alert-error {
  background: rgba(255, 68, 102, 0.1);
  border-color: rgba(255, 68, 102, 0.3);
  border-left-color: var(--color-error);
  color: var(--color-error);
}

.alert-warning {
  background: rgba(255, 170, 0, 0.1);
  border-color: rgba(255, 170, 0, 0.3);
  border-left-color: var(--color-warning);
  color: var(--color-warning);
}

.alert-info {
  background: rgba(0, 217, 255, 0.1);
  border-color: rgba(0, 217, 255, 0.3);
  border-left-color: var(--color-info);
  color: var(--color-info);
}

.alert-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ========================================
   Header Navigation
   ======================================== */
.header {
  background: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-border);
  padding: 16px 32px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-logo {
  height: 64px;
  width: auto;
}

.header-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0;
  white-space: nowrap;
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
  .header {
    padding: 12px 24px;
  }
}

@media (max-width: 640px) {
  .header {
    padding: 12px 16px;
  }

  .header-brand {
    gap: 12px;
  }

  .header-logo {
    height: 48px;
  }

  .header-title {
    font-size: 0.875rem;
  }

  .alerts-container {
    top: var(--spacing-4);
    right: var(--spacing-4);
    left: var(--spacing-4);
    max-width: none;
  }
}

/* ========================================
   Utility Classes
   ======================================== */
.text-center {
  text-align: center;
}

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

.mb-4 {
  margin-bottom: var(--spacing-4);
}

.mb-6 {
  margin-bottom: var(--spacing-6);
}

.mt-4 {
  margin-top: var(--spacing-4);
}

.mt-6 {
  margin-top: var(--spacing-6);
}