/* 
 * SocioMarket - Premium Design System (CSS)
 * Style: Clean Corporate SaaS, Vibrant Accents, Soft Shadows, Glassmorphism & High-end UI Transitions
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  --font-primary: 'Inter', sans-serif;
  --font-display: 'Outfit', sans-serif;
  
  /* Modern Slate & Corporate Blue Palette */
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-hover: #f1f5f9;
  
  --color-primary: #0f172a;       /* Slate 900 */
  --color-primary-light: #1e293b; /* Slate 800 */
  
  --color-brand: #2563eb;         /* Bright Corporate Blue */
  --color-brand-hover: #1d4ed8;
  --color-brand-rgb: 37, 99, 235;
  
  --color-accent: #10b981;        /* Emerald Green for success & trading */
  --color-accent-hover: #059669;
  --color-accent-rgb: 16, 185, 129;
  
  --color-orange: #f97316;        /* Orange Accent for actions & alerts */
  
  --color-text-main: #1e293b;
  --color-text-muted: #64748b;
  --color-border: #e2e8f0;
  
  /* Premium Shadows & Transitions */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.08);
  --shadow-premium: 0 20px 25px -5px rgba(37, 99, 235, 0.04), 0 8px 10px -6px rgba(37, 99, 235, 0.04);
  
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
}

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

/* Premium Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

/* Dynamic Gradient Backgrounds */
.bg-gradient-brand {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
}

.bg-gradient-premium {
  background: linear-gradient(135deg, #2563eb 0%, #10b981 100%);
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-brand) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Header & Navigation */
.navbar-custom {
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1030;
  transition: var(--transition-smooth);
}

.navbar-brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.03em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar-brand span {
  color: var(--color-brand);
}

.nav-link-custom {
  font-family: var(--font-primary);
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  transition: var(--transition-smooth);
}

.nav-link-custom:hover, .nav-link-custom.active {
  color: var(--color-brand);
  background-color: rgba(37, 99, 235, 0.08);
}

/* Custom Buttons with Micro-interactions */
.btn-premium {
  background: linear-gradient(135deg, var(--color-brand) 0%, var(--color-brand-hover) 100%);
  color: white;
  border: none;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

.btn-premium:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px -5px rgba(37, 99, 235, 0.4);
  color: white;
}

.btn-premium-accent {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
  color: white;
  border: none;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

.btn-premium-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px -5px rgba(16, 185, 129, 0.4);
  color: white;
}

.btn-premium-outline {
  border: 2px solid var(--color-brand);
  background: transparent;
  color: var(--color-brand);
  font-weight: 600;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-md);
  transition: var(--transition-smooth);
}

.btn-premium-outline:hover {
  background-color: var(--color-brand);
  color: white;
  transform: translateY(-2px);
}

/* Cards Design System */
.card-premium {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  transition: var(--transition-smooth);
  overflow: hidden;
}

.card-premium:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(37, 99, 235, 0.2);
}

.card-premium-image {
  height: 220px;
  object-fit: cover;
  width: 100%;
  transition: var(--transition-smooth);
}

.card-premium:hover .card-premium-image {
  transform: scale(1.05);
}

/* Forms Style (Glassmorphism & Crisp Focus) */
.form-control-premium {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  font-family: var(--font-primary);
  font-size: 0.95rem;
  transition: var(--transition-smooth);
  background-color: rgba(255, 255, 255, 0.9);
}

.form-control-premium:focus {
  border-color: var(--color-brand);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
  background-color: #ffffff;
  outline: none;
}

/* Dashboard & KPIs Metrics Cards */
.kpi-card {
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: #ffffff;
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background-color: var(--color-brand);
}

.kpi-card.accent::before {
  background-color: var(--color-accent);
}

.kpi-card.orange::before {
  background-color: var(--color-orange);
}

.kpi-value {
  font-size: 2.2rem;
  font-weight: 800;
  font-family: var(--font-display);
  line-height: 1;
  margin-top: 0.5rem;
  margin-bottom: 0.2rem;
}

.kpi-title {
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Glassmorphism Auth Container */
.auth-wrapper {
  background: radial-gradient(circle at 10% 20%, rgba(216, 241, 230, 0.46) 0.1%, rgba(233, 226, 226, 0.28) 90.1%);
  min-height: calc(100vh - 75px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.auth-card {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-lg);
  padding: 3rem;
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.08);
  width: 100%;
  max-width: 480px;
  transition: var(--transition-smooth);
}

/* Premium Chat Messenger System */
.chat-container {
  height: 600px;
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  display: flex;
}

.chat-sidebar {
  width: 320px;
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  background-color: #f8fafc;
}

.chat-partner-item {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition-smooth);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.chat-partner-item:hover, .chat-partner-item.active {
  background-color: #ffffff;
  border-left: 4px solid var(--color-brand);
}

.chat-main {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  background-color: #ffffff;
}

.chat-header {
  padding: 1.25rem 2rem;
  border-bottom: 1px solid var(--color-border);
  background-color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chat-body {
  flex-grow: 1;
  padding: 2rem;
  overflow-y: auto;
  background-color: #f1f5f9;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.chat-bubble {
  max-width: 70%;
  padding: 0.95rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  line-height: 1.4;
  position: relative;
  box-shadow: var(--shadow-sm);
}

.chat-bubble.sent {
  background: linear-gradient(135deg, var(--color-brand) 0%, var(--color-brand-hover) 100%);
  color: white;
  align-self: flex-end;
  border-bottom-right-radius: 2px;
}

.chat-bubble.received {
  background-color: #ffffff;
  color: var(--color-text-main);
  align-self: flex-start;
  border-bottom-left-radius: 2px;
}

.chat-time {
  font-size: 0.72rem;
  opacity: 0.7;
  margin-top: 0.35rem;
  text-align: right;
}

.chat-input-area {
  padding: 1.25rem 2rem;
  border-top: 1px solid var(--color-border);
  background-color: #ffffff;
}

/* Pricing Grid Packages */
.pricing-card {
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: #ffffff;
  padding: 3rem 2.2rem;
  text-align: center;
  transition: var(--transition-smooth);
  position: relative;
}

.pricing-card.recommended {
  border-color: var(--color-brand);
  box-shadow: var(--shadow-premium);
}

.pricing-badge {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background-color: rgba(37, 99, 235, 0.1);
  color: var(--color-brand);
  padding: 0.4rem 0.9rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.pricing-card:hover {
  transform: scale(1.03);
  box-shadow: var(--shadow-lg);
}

.price-tag {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin: 1.5rem 0;
}

.price-tag span {
  font-size: 1rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* Footer layout with premium high-contrast legibility */
.footer-custom {
  background-color: var(--color-primary);
  color: #cbd5e1; /* Bright slate-gray for text clarity (WCAG compliant) */
  padding: 3.5rem 0 2rem 0;
  border-top: 1px solid var(--color-primary-light);
  margin-top: auto;
}

.footer-custom .text-muted {
  color: #94a3b8 !important; /* Subtle gray for secondary metadata text */
}

.footer-custom a {
  color: #f1f5f9; /* Near-white high contrast color for navigation links */
  text-decoration: none;
  transition: var(--transition-smooth);
}

.footer-custom a:hover {
  color: var(--color-accent);
}

/* Fade In Entrance Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  animation: fadeIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Hamburger animation custom toggle */
.navbar-toggler-custom {
  border: none;
  background: transparent;
  padding: 0.5rem;
  outline: none !important;
}

.navbar-toggler-custom span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  margin: 5px 0;
  transition: var(--transition-smooth);
}

.navbar-toggler-custom.active span:nth-child(1) {
  transform: rotate(-45deg) translate(-5px, 5px);
}

.navbar-toggler-custom.active span:nth-child(2) {
  opacity: 0;
}

.navbar-toggler-custom.active span:nth-child(3) {
  transform: rotate(45deg) translate(-5px, -5px);
}