/* ShopTeam Website Styles */
/* Desktop-first design with mobile adaptations */

/* ============================================
   CSS Variables
   ============================================ */
:root {
  /* Colors - Material Design inspired */
  --primary: #4CAF50;
  --primary-dark: #388E3C;
  --primary-light: #C8E6C9;
  --secondary: #FF9800;
  --secondary-dark: #F57C00;

  --text-primary: #212121;
  --text-secondary: #757575;
  --text-light: #FFFFFF;

  --background: #FFFFFF;
  --background-alt: #F5F5F5;
  --surface: #FFFFFF;

  --border: #E0E0E0;
  --shadow: rgba(0, 0, 0, 0.1);

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-size-base: 16px;
  --font-size-sm: 14px;
  --font-size-lg: 18px;
  --font-size-xl: 24px;
  --font-size-2xl: 32px;
  --font-size-3xl: 48px;

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;

  /* Layout */
  --max-width: 1200px;
  --header-height: 72px;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
}

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

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  color: var(--text-primary);
  background-color: var(--background);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

ul, ol {
  list-style-position: inside;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-2xl); }
h2 { font-size: var(--font-size-xl); }
h3 { font-size: var(--font-size-lg); }
h4 { font-size: var(--font-size-md); }

p {
  margin-bottom: var(--spacing-md);
}

/* ============================================
   Layout Utilities
   ============================================ */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section-alt {
  background-color: var(--background-alt);
}

.text-center {
  text-align: center;
}

/* ============================================
   Header
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--surface);
  box-shadow: 0 2px 8px var(--shadow);
  z-index: 1000;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--primary);
}

.logo img {
  height: 40px;
  width: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav a {
  color: var(--text-secondary);
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav a:hover {
  color: var(--primary);
  background-color: var(--primary-light);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  margin: 5px 0;
  transition: var(--transition-fast);
}

/* ============================================
   Main Content
   ============================================ */
main {
  flex: 1;
  margin-top: var(--header-height);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  padding: var(--spacing-3xl) 0;
  text-align: center;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--background) 100%);
}

.hero h1 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.hero .tagline {
  font-size: var(--font-size-xl);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero .description {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-2xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-base);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--text-light);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  color: var(--text-light);
}

.btn-secondary {
  background-color: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-secondary:hover {
  background-color: var(--primary);
  color: var(--text-light);
}

.btn-group {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* Store Badges */
.store-badges {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  vertical-align: bottom;
  flex-wrap: wrap;
  margin-top: var(--spacing-xl);
}

.store-badge {
  height: 50px;
  width: auto;
  border-radius: var(--radius-md);
  transition: transform var(--transition-fast);
}

.store-badge:hover {
  transform: scale(1.05);
}

/* ============================================
   Features Section
   ============================================ */
.features {
  padding: var(--spacing-3xl) 0;
}

.features h2 {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.feature-card {
  text-align: center;
  padding: var(--spacing-xl);
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 12px var(--shadow);
  transition: transform var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-4px);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-md);
  background: var(--primary-light);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon svg {
  width: 32px;
  height: 32px;
  color: var(--primary);
}

.feature-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
}

.feature-card p {
  color: var(--text-secondary);
  margin-bottom: 0;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--text-primary);
  color: var(--text-light);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-brand {
  flex: 1;
  min-width: 250px;
}

.footer-brand .logo {
  color: var(--text-light);
  margin-bottom: var(--spacing-md);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  max-width: 300px;
}

.footer-links {
  display: flex;
  gap: var(--spacing-3xl);
}

.footer-links-column h4 {
  color: var(--text-light);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-md);
}

.footer-links-column ul {
  list-style: none;
}

.footer-links-column li {
  margin-bottom: var(--spacing-sm);
}

.footer-links-column a {
  color: rgba(255, 255, 255, 0.7);
}

.footer-links-column a:hover {
  color: var(--text-light);
}

.footer-bottom {
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: var(--font-size-sm);
}

/* ============================================
   Page Styles - Privacy, Contact, About
   ============================================ */
.page-header {
  background: var(--primary-light);
  padding: var(--spacing-2xl) 0;
  text-align: center;
}

.page-header h1 {
  margin-bottom: var(--spacing-sm);
}

.page-header .subtitle {
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
}

.page-content {
  padding: var(--spacing-2xl) 0;
  max-width: 800px;
  margin: 0 auto;
}

.page-content h2 {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border);
}

.page-content h2:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.page-content h3 {
  margin-top: var(--spacing-lg);
}

.page-content ul, .page-content ol {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
}

.page-content li {
  margin-bottom: var(--spacing-sm);
}

.page-content table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-lg) 0;
}

.page-content th, .page-content td {
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: left;
  border: 1px solid var(--border);
}

.page-content th {
  background: var(--background-alt);
  font-weight: 600;
}

/* Contact Form */
.contact-form {
  max-width: 500px;
  margin: 0 auto;
}

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

.form-group label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  font-size: var(--font-size-base);
  font-family: inherit;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.contact-info {
  background: var(--background-alt);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  margin-top: var(--spacing-2xl);
}

.contact-info h3 {
  margin-top: 0;
}

.contact-info p {
  margin-bottom: var(--spacing-sm);
}

/* ============================================
   Mobile Adaptations (768px and below)
   ============================================ */
@media (max-width: 768px) {
  :root {
    --font-size-3xl: 32px;
    --font-size-2xl: 24px;
    --font-size-xl: 20px;
  }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--surface);
    flex-direction: column;
    padding: var(--spacing-lg);
    box-shadow: 0 4px 8px var(--shadow);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
  }

  .nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-toggle {
    display: block;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }

  .footer-brand {
    text-align: center;
  }

  .footer-brand p {
    margin: 0 auto;
  }

  .footer-links {
    flex-direction: column;
    gap: var(--spacing-xl);
  }

  .hero {
    padding: var(--spacing-2xl) 0;
  }

  .section {
    padding: var(--spacing-2xl) 0;
  }
}

/* ============================================
   Utility Classes
   ============================================ */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-lg { margin-bottom: var(--spacing-lg); }

/* ============================================
   Admin Panel Styles
   ============================================ */
.user-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.user-info span {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.admin-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 12px var(--shadow);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.admin-card h2 {
  margin-top: 0;
  margin-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--border);
  padding-bottom: var(--spacing-md);
}

.invitation-form .form-row {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.invitation-form .form-input {
  flex: 1;
  padding: var(--spacing-md);
  font-size: var(--font-size-base);
  font-family: inherit;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

.invitation-form .form-input:focus {
  outline: none;
  border-color: var(--primary);
}

.form-message {
  margin-top: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
}

.form-message:empty {
  display: none;
}

.form-message.success {
  background: #e8f5e9;
  color: #2e7d32;
}

.form-message.error {
  background: #ffebee;
  color: #c62828;
}

.form-message.warning {
  background: #fff3e0;
  color: #ef6c00;
}

.table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--border);
  padding-bottom: var(--spacing-md);
}

.table-header h2 {
  margin: 0;
  border: none;
  padding: 0;
}

.table-container {
  overflow-x: auto;
}

.invitations-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.invitations-table th,
.invitations-table td {
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.invitations-table th {
  background: var(--background-alt);
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.5px;
}

.invitations-table tbody tr:hover {
  background: var(--background-alt);
}

.invitations-table .email-cell {
  font-weight: 500;
}

.invitations-table .code-cell code {
  background: var(--background-alt);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-family: 'SF Mono', Monaco, 'Courier New', monospace;
  font-size: 12px;
}

.invitations-table .loading-cell,
.invitations-table .empty-cell,
.invitations-table .error-cell {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--text-secondary);
}

.invitations-table .error-cell {
  color: #c62828;
}

.status-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.status-pending {
  background: #f5f5f5;
  color: #757575;
}

.status-downloaded {
  background: #e3f2fd;
  color: #1565c0;
}

.status-signed-up {
  background: #e8f5e9;
  color: #2e7d32;
}

/* ============================================
   Download Page Styles
   ============================================ */
.download-section {
  padding: var(--spacing-3xl) 0;
  min-height: calc(100vh - var(--header-height) - 200px);
}

.download-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 24px var(--shadow);
  padding: var(--spacing-2xl);
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.download-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  background: var(--primary-light);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

.download-icon svg {
  width: 40px;
  height: 40px;
  color: var(--primary);
}

.download-card h1 {
  margin-bottom: var(--spacing-sm);
}

.download-subtitle {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
}

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

.code-input-group {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

.code-input {
  width: 200px;
  padding: var(--spacing-md);
  font-size: var(--font-size-lg);
  font-family: 'SF Mono', Monaco, 'Courier New', monospace;
  text-align: center;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.code-input:focus {
  outline: none;
  border-color: var(--primary);
}

.code-input::placeholder {
  color: #bdbdbd;
  letter-spacing: 1px;
}

.code-message {
  margin-top: var(--spacing-md);
  font-size: var(--font-size-sm);
}

.code-message.error {
  color: #c62828;
}

.code-message.success {
  color: #2e7d32;
}

.download-area {
  padding: var(--spacing-xl) 0;
  border-top: 1px solid var(--border);
  margin-top: var(--spacing-lg);
}

.download-ready {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  color: #2e7d32;
  margin-bottom: var(--spacing-lg);
}

.download-ready .check-icon {
  width: 24px;
  height: 24px;
}

.btn-large {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--font-size-lg);
}

.btn-success {
  background-color: #2e7d32 !important;
}

.download-note {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-md);
  margin-bottom: 0;
}

.install-instructions {
  text-align: left;
  background: var(--background-alt);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.install-instructions h3 {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
}

.install-instructions ol {
  margin: 0;
  padding-left: var(--spacing-lg);
}

.install-instructions li {
  margin-bottom: var(--spacing-sm);
}

.install-instructions ul {
  margin: var(--spacing-sm) 0;
  padding-left: var(--spacing-lg);
}

.download-help {
  max-width: 600px;
  margin: var(--spacing-2xl) auto 0;
  text-align: center;
  color: var(--text-secondary);
}

.download-help h3 {
  color: var(--text-primary);
}

.download-help .note {
  font-size: var(--font-size-sm);
  font-style: italic;
}

/* Spin animation for loading */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Mobile Adaptations for Admin/Download */
@media (max-width: 768px) {
  .invitation-form .form-row {
    flex-direction: column;
  }

  .invitation-form .form-input {
    width: 100%;
  }

  .code-input-group {
    flex-direction: column;
    align-items: center;
  }

  .code-input {
    width: 100%;
    max-width: 300px;
  }

  .invitations-table {
    font-size: 12px;
  }

  .invitations-table th,
  .invitations-table td {
    padding: var(--spacing-xs) var(--spacing-sm);
  }
}