/* nexus.css - Core Styling for the Fishz Network */
:root {
  /* Global Network Variables */
  --network-bg: #f8fafc;
  --network-text: #0f172a;
  --network-text-muted: #64748b;
  --network-surface: #ffffff;
  --network-border: #e2e8f0;
  
  --nav-bg: rgba(255, 255, 255, 0.7);
  --nav-blur: blur(16px);
  --nav-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
  
  --transition-fast: 0.15s ease-out;
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --border-radius: 16px;
  --border-radius-pill: 9999px;
  
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* Theme: Fishz (Authoritative, Broad, Ocean) */
body[data-site="fishz"] {
  --brand-primary: #0284c7;
  --brand-primary-hover: #0369a1;
  --brand-gradient: linear-gradient(135deg, #0ea5e9, #0284c7);
  --selection-bg: #bae6fd;
}

/* Theme: Shrimpz (Playful, Specialist, Coral) */
body[data-site="shrimpz"] {
  --brand-primary: #ea580c;
  --brand-primary-hover: #c2410c;
  --brand-gradient: linear-gradient(135deg, #f97316, #ea580c);
  --selection-bg: #fed7aa;
}

/* Theme: Tankz (Secure, Trust, Dark Mode Hub) */
body[data-site="tankz"] {
  --network-bg: #0f172a;
  --network-text: #f8fafc;
  --network-text-muted: #94a3b8;
  --network-surface: #1e293b;
  --network-border: #334155;
  --nav-bg: rgba(30, 41, 59, 0.7);
  --brand-primary: #10b981;
  --brand-primary-hover: #059669;
  --brand-gradient: linear-gradient(135deg, #34d399, #10b981);
  --selection-bg: #064e3b;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--network-bg);
  color: var(--network-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
}

::selection {
  background-color: var(--selection-bg);
  color: #111;
}

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

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Signature Network Navigation */
.network-nav-wrapper {
  position: fixed;
  top: 1.5rem;
  left: 0;
  width: 100%;
  z-index: 1000;
  display: flex;
  justify-content: center;
  pointer-events: none;
}

.network-nav {
  pointer-events: auto;
  background: var(--nav-bg);
  backdrop-filter: var(--nav-blur);
  -webkit-backdrop-filter: var(--nav-blur);
  border: 1px solid var(--network-border);
  border-radius: var(--border-radius-pill);
  box-shadow: var(--nav-shadow);
  display: flex;
  align-items: center;
  padding: 0.5rem;
  gap: 0.5rem;
}

.nav-item {
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius-pill);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--network-text-muted);
  transition: all var(--transition-smooth);
  cursor: pointer;
  position: relative;
}

.nav-item:hover {
  color: var(--network-text);
  background: rgba(150, 150, 150, 0.1);
}

.nav-item.active {
  color: #fff;
  background: var(--brand-gradient);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* Hero Section */
.hero {
  padding: 12rem 0 6rem;
  text-align: center;
  animation: fadeInUp 0.8s ease-out forwards;
}

.hero h1 {
  font-size: 4.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.25rem;
  color: var(--network-text-muted);
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  font-weight: 600;
  border-radius: var(--border-radius-pill);
  border: none;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-primary {
  background: var(--brand-primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(0,0,0,0.1);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
  background: var(--brand-primary-hover);
}

/* Grid & Cards */
.content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  padding: 2rem 0 6rem;
}

.card {
  background: var(--network-surface);
  border: 1px solid var(--network-border);
  border-radius: var(--border-radius);
  padding: 2rem;
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--nav-shadow);
}

.card h3 {
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

/* Account Slide-out Drawer */
.account-drawer {
  position: fixed;
  top: 0;
  right: -400px;
  width: 100%;
  max-width: 400px;
  height: 100vh;
  background: var(--network-surface);
  border-left: 1px solid var(--network-border);
  box-shadow: -10px 0 30px rgba(0,0,0,0.1);
  z-index: 2000;
  transition: right var(--transition-smooth);
  padding: 2rem;
  display: flex;
  flex-direction: column;
}

.account-drawer.open {
  right: 0;
}

.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(4px);
  z-index: 1999;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-smooth);
}

.drawer-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--network-border);
}

.close-drawer {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--network-text-muted);
  cursor: pointer;
}

.account-info {
  margin-bottom: 2rem;
}

.saved-items-list {
  list-style: none;
  margin-top: 1rem;
}

.saved-items-list li {
  padding: 1rem;
  background: var(--network-bg);
  border-radius: 8px;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  display: flex;
  justify-content: space-between;
}

/* Tankz Dashboard Specifics */
.dashboard-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 3rem;
  margin-top: 8rem;
}

.dash-nav ul {
  list-style: none;
}

.dash-nav li {
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 0.5rem;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.dash-nav li:hover, .dash-nav li.active {
  background: rgba(255,255,255,0.05);
  color: var(--brand-primary);
}

/* Animations */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 768px) {
  .hero h1 { font-size: 3rem; }
  .dashboard-layout { grid-template-columns: 1fr; }
}