/* KinzaOS Client Portal - Apple/Jony Ive Inspired Design */

/* CSS Variables for consistent theming */
:root {
  /* Brand Colors */
  --brand: #4A7EA2;
  --brand-hover: #3E6E8E;
  --accent: #F8C55F;
  --accent-hover: #FAD17A;
  
  /* Text/Ink Colors */
  --ink: #1D2F37;
  --ink-soft: #284C63;
  
  /* Surfaces */
  --surface: #FFFFFF;
  --surface-subtle: #FDFDFC;
  --surface-border: #E9EEF2;
  
  /* Legacy/Compatibility aliases */
  --primary-black: #1D2F37;
  --secondary-gray: #284C63;
  --light-gray: #FDFDFC;
  --ultra-light-gray: #FDFDFC;
  --white: #FFFFFF;
  --accent-blue: #4A7EA2;
  --focus-ring: #F8C55F;
  --success-green: #30d158;
  --warning-orange: #ff9500;
  --error-red: #ff3b30;
  
  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'SF Pro Display', sans-serif;
  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  --spacing-xxxl: 64px;
  
  /* Border radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  /* Shadows */
  --shadow-light: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-medium: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-heavy: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.06);
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-smooth: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Global styles */
* {
  box-sizing: border-box;
}

body.client-portal {
  font-family: var(--font-family);
  font-weight: var(--font-weight-regular);
  color: var(--ink);
  background-color: var(--surface-subtle);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  margin: 0;
  padding: 0;
}

/* Typography Scale */
.client-portal h1 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 var(--spacing-lg);
}

.client-portal h2 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: var(--font-weight-semibold);
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin: 0 0 var(--spacing-md);
}

.client-portal h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.875rem);
  font-weight: var(--font-weight-medium);
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin: 0 0 var(--spacing-md);
}

.client-portal p {
  font-size: 1rem;
  font-weight: var(--font-weight-regular);
  color: var(--ink-soft);
  margin: 0 0 var(--spacing-md);
  max-width: 65ch;
}

.client-portal .large-text {
  font-size: 1.125rem;
  font-weight: var(--font-weight-medium);
}

.client-portal .small-text {
  font-size: 0.875rem;
  color: var(--ink-soft);
}

/* Layout Components */
.client-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.client-section {
  margin: var(--spacing-xxxl) 0;
}

.client-section.hero {
  margin: var(--spacing-xxl) 0 var(--spacing-xxxl);
  text-align: center;
}

/* Card Components */
.client-card {
  background: var(--surface-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--surface-border);
  overflow: hidden;
  transition: all var(--transition-smooth);
}

.client-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

.client-card-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid #f0f0f0;
}

.client-card-body {
  padding: var(--spacing-lg);
}

.client-card-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid #f0f0f0;
  background: var(--light-gray);
}

/* Loyalty and Referral Cards */
.loyalty-card {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-hover) 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0;
}

.loyalty-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 100px;
  height: 100px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  transform: translate(25%, -25%);
}

.loyalty-card .card-content,
.referral-card .card-content {
  position: relative;
  z-index: 2;
  padding: var(--spacing-xl);
  width: 100%;
  box-sizing: border-box;
}

.referral-card {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  color: var(--ink);
  position: relative;
  overflow: hidden;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0;
}

.referral-card::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 80px;
  height: 80px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transform: translate(-25%, 25%);
}

/* Button Components */
.client-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1rem;
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
  min-width: 120px;
  user-select: none;
  -webkit-user-select: none;
}

.client-btn:focus {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.client-btn.primary {
  background: var(--brand);
  color: #fff;
}

.client-btn.primary:hover {
  background: var(--brand-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-medium);
}

.client-btn.secondary {
  background: var(--surface-subtle);
  color: var(--ink);
  border: 1px solid var(--surface-border);
}

.client-btn.secondary:hover {
  background: var(--surface-border);
  transform: translateY(-1px);
}

.client-btn.accent {
  background: var(--accent);
  color: var(--ink);
  font-weight: var(--font-weight-semibold);
}

.client-btn.accent:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-medium);
}

.client-btn.outline {
  background: transparent;
  color: var(--brand);
  border: 2px solid var(--brand);
}

.client-btn.outline:hover {
  background: var(--brand);
  color: #fff;
}

.client-btn.success {
  background: var(--success-green);
  color: var(--white);
}

.client-btn.success:hover {
  background: #28a745;
}

.client-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* Form Components */
.client-form {
  max-width: 400px;
  margin: 0 auto;
}

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

.client-form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: var(--font-weight-medium);
  color: var(--primary-black);
  margin-bottom: var(--spacing-sm);
}

.client-form-input {
  width: 100%;
  padding: var(--spacing-md);
  font-size: 1rem;
  border: 2px solid var(--surface-border);
  border-radius: var(--radius-md);
  background: var(--surface);
  transition: border-color var(--transition-fast);
  color: var(--ink);
}

.client-form-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(248, 197, 95, 0.15);
}

.client-form-input:invalid {
  border-color: var(--error-red);
}

.client-form-error {
  color: var(--error-red);
  font-size: 0.875rem;
  margin-top: var(--spacing-xs);
}

.client-form-success {
  color: var(--success-green);
  font-size: 0.875rem;
  margin-top: var(--spacing-xs);
}

/* Navigation */
.client-nav {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  position: sticky;
  top: 0;
  z-index: 100;
}

.client-nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-md);
  max-width: 1200px;
  margin: 0 auto;
}

.client-nav-brand {
  font-size: 1.25rem;
  font-weight: var(--font-weight-semibold);
  color: var(--ink);
  text-decoration: none;
}

.client-nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  list-style: none;
  margin: 0;
  padding: 0;
}

.client-nav-item {
  font-size: 0.875rem;
  font-weight: var(--font-weight-medium);
}

.client-nav-link {
  color: var(--ink-soft);
  text-decoration: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.client-nav-link:hover,
.client-nav-link.active {
  color: var(--brand);
  background: var(--surface-subtle);
}

/* Mobile Navigation Toggle */
.client-nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 101;
}

.client-nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.client-nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.client-nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.client-nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Language Selector */
.language-selector {
  position: relative;
  display: inline-block;
}

.language-toggle {
  background: none;
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 0.875rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--ink);
}

.language-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-medium);
  min-width: 120px;
  z-index: 200;
  display: none;
}

.language-dropdown.show {
  display: block;
}

.language-option {
  display: block;
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: left;
  border: none;
  background: none;
  cursor: pointer;
  text-decoration: none;
  color: var(--ink);
  font-size: 0.875rem;
}

.language-option:hover {
  background: var(--surface-subtle);
}

/* Alert Components */
.client-alert {
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  border: 1px solid transparent;
}

.client-alert.success {
  background: #d4edda;
  color: #155724;
  border-color: #c3e6cb;
}

.client-alert.error {
  background: #f8d7da;
  color: #721c24;
  border-color: #f5c6cb;
}

.client-alert.warning {
  background: #fff3cd;
  color: #856404;
  border-color: #ffeaa7;
}

.client-alert.info {
  background: #d1ecf1;
  color: #0c5460;
  border-color: #bee5eb;
}

/* Responsive Design */
@media (max-width: 768px) {
  .client-container {
    padding: 0 var(--spacing-sm);
  }
  
  .client-section {
    margin: var(--spacing-xl) 0;
  }
  
  .client-nav-container {
    padding: var(--spacing-sm);
    position: relative;
  }
  
  /* Show hamburger menu on mobile */
  .client-nav-toggle {
    display: flex;
  }
  
  /* Hide menu by default on mobile */
  .client-nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--spacing-md) 0;
    margin: 0;
    border-top: 1px solid var(--surface-border);
    box-shadow: var(--shadow-medium);
    display: none;
  }
  
  /* Show menu when active */
  .client-nav-menu.active {
    display: flex;
  }
  
  .client-nav-item {
    text-align: center;
    width: 100%;
  }
  
  .client-nav-link {
    display: block;
    padding: var(--spacing-md) var(--spacing-lg);
    width: 100%;
  }
  
  .client-nav-link:hover,
  .client-nav-link.active {
    background: var(--surface-subtle);
  }
  
  .client-btn.secondary {
    margin: 0 var(--spacing-lg);
    width: calc(100% - var(--spacing-xl));
  }
  
  .language-selector {
    width: 100%;
    display: flex;
    justify-content: center;
  }
  
  .language-toggle {
    width: calc(100% - var(--spacing-xl));
    margin: 0 var(--spacing-lg);
    justify-content: center;
  }
  
  .client-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.875rem;
  }
  
  .loyalty-card,
  .referral-card {
    min-height: 280px;
  }
  
  .loyalty-card .card-content,
  .referral-card .card-content {
    padding: var(--spacing-lg);
  }
}

/* Loading States */
.client-loading {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.client-spinner {
  width: 20px;
  height: 20px;
  border: 2px solid #e5e5e7;
  border-top: 2px solid var(--accent-blue);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}