/* ================================================
   AIMS7 ERP - Enterprise Main Stylesheet
   Brand Colors: #ff0000 (Red), #000000 (Black), #ffffff (White)
   Version: 3.0.0 | Enterprise Grade | Fully External
   ================================================ */

/* ============================================
   CSS RESET & BASE STYLES
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* CSS Custom Properties for Theming */
:root {
  --brand-red: #ff0000;
  --brand-red-dark: #cc0000;
  --brand-red-darker: #990000;
  --brand-black: #000000;
  --brand-white: #ffffff;
  --brand-gray-light: #f5f5f5;
  --brand-gray-border: #dddddd;
  --brand-gray-text: #666666;
  --brand-gray-dark: #333333;
  
  /* Shadows */
  --shadow-sm: 0 6px 14px rgba(255, 0, 0, 0.2);
  --shadow-md: 0 20px 35px -12px rgba(255, 0, 0, 0.25);
  --shadow-lg: 0 28px 40px -14px rgba(255, 0, 0, 0.4);
  --shadow-hover: 0 12px 22px rgba(255, 0, 0, 0.45);
  --shadow-footer: 0 12px 24px -8px rgba(255, 0, 0, 0.3);
  
  /* Transitions */
  --transition-default: all 0.3s cubic-bezier(0.2, 0, 0, 1);
  --transition-fast: all 0.2s ease;
  --transition-slow: all 0.4s ease;
  
  /* Border Radius */
  --border-radius-card: 32px;
  --border-radius-button: 60px;
  --border-radius-badge: 40px;
  --border-radius-small: 24px;
  --border-radius-circle: 50%;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Z-Index Layers */
  --z-negative: -1;
  --z-base: 1;
  --z-dropdown: 100;
  --z-modal: 1000;
  --z-toast: 10000;
}

/* Base Body Styles */
body {
  background: var(--brand-white);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  padding: var(--spacing-xl) var(--spacing-lg);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Main Container */
.downloads-container {
  max-width: 1300px;
  width: 100%;
  margin: 0 auto;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--brand-black);
}

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

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

.text-white-50 {
  color: rgba(255, 255, 255, 0.5);
}

/* ============================================
   BRAND HEADER & LOGO
   ============================================ */
.brand-header {
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.logo-wrapper {
  background: var(--brand-white);
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 0.6rem var(--spacing-xl);
  border-radius: 100px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--brand-gray-border);
  transition: var(--transition-fast);
}

.logo-wrapper:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-1px);
}

.logo-img {
  max-height: 48px;
  width: auto;
  transition: transform 0.2s ease;
}

.logo-img:hover {
  transform: scale(1.02);
}

/* Security Badge */
.security-badge {
  font-size: 0.7rem;
  background: #f0f0f0;
  display: inline-block;
  padding: var(--spacing-xs) 0.8rem;
  border-radius: 30px;
  color: var(--brand-black);
  font-weight: 500;
  letter-spacing: 0.3px;
}

.security-badge i {
  margin-right: 4px;
  color: var(--brand-red);
}

/* ============================================
   DOWNLOAD CARDS
   ============================================ */
.download-card {
  background: var(--brand-white);
  border-radius: var(--border-radius-card);
  box-shadow: var(--shadow-md);
  transition: var(--transition-default);
  height: 100%;
  border: 1px solid var(--brand-gray-border);
  overflow: hidden;
}

.download-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* Card Header */
.card-header-modern {
  padding: 1.6rem 1.8rem 1rem 1.8rem;
  background: var(--brand-white);
  border-bottom: 2px solid var(--brand-gray-border);
  border-radius: var(--border-radius-card) var(--border-radius-card) 0 0;
}

.card-header-modern h3 {
  font-size: 1.45rem;
  font-weight: 700;
  margin: 0 0 0.4rem 0;
  color: var(--brand-black);
  letter-spacing: -0.3px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.card-header-modern h3 i {
  color: var(--brand-red);
  font-size: 1.5rem;
  background: rgba(255, 0, 0, 0.1);
  padding: 8px;
  border-radius: 18px;
  transition: var(--transition-fast);
}

.download-card:hover .card-header-modern h3 i {
  background: rgba(255, 0, 0, 0.2);
  transform: scale(1.05);
}

/* Badges */
.badge-staff {
  background: var(--brand-black);
  color: var(--brand-white);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.3rem 1rem;
  border-radius: var(--border-radius-badge);
  letter-spacing: 0.3px;
  display: inline-block;
}

.badge-customer {
  background: var(--brand-red);
  color: var(--brand-white);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.3rem 1rem;
  border-radius: var(--border-radius-badge);
  display: inline-block;
}

/* Sub Text */
.sub-text {
  font-size: 0.82rem;
  color: var(--brand-gray-text);
  margin-top: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.sub-text i {
  color: var(--brand-red);
}

/* Card Body */
.card-body-modern {
  padding: 1.8rem;
}

/* ============================================
   BUTTONS - Primary & Interactive
   ============================================ */
.btn-primary-download {
  background: var(--brand-red);
  border: none;
  border-radius: var(--border-radius-button);
  padding: 1rem 1.5rem;
  font-weight: 700;
  font-size: 1rem;
  transition: var(--transition-fast);
  box-shadow: var(--shadow-sm);
  width: 100%;
  color: var(--brand-white);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-decoration: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

/* Ripple Effect */
.btn-primary-download::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: var(--border-radius-circle);
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn-primary-download:active::before {
  width: 300px;
  height: 300px;
}

.btn-primary-download:hover {
  background: var(--brand-red-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-primary-download:active {
  transform: translateY(0);
}

/* Disabled state */
.btn-primary-download:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* ============================================
   OLD VERSION AREA
   ============================================ */
.old-version-area {
  background: var(--brand-gray-light);
  border-radius: var(--border-radius-small);
  padding: 1.2rem 1.3rem;
  margin-top: var(--spacing-lg);
  border: 1px solid var(--brand-gray-border);
}

.old-version-title {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--brand-black);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.old-version-title i {
  color: var(--brand-red);
  font-size: 1rem;
}

.btn-outline-old {
  background: var(--brand-white);
  border: 1px solid var(--brand-gray-border);
  border-radius: var(--border-radius-button);
  padding: 0.55rem 1.2rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--brand-black);
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  cursor: pointer;
}

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

.btn-outline-old:active {
  transform: translateY(0);
}

/* ============================================
   CUSTOMER GRID & BUTTONS
   ============================================ */
.customer-grid {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.btn-customer-main {
  background: var(--brand-red);
  border: none;
  border-radius: var(--border-radius-button);
  padding: var(--spacing-md);
  font-weight: 600;
  width: 100%;
  transition: var(--transition-fast);
  color: var(--brand-white);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-decoration: none;
  cursor: pointer;
}

.btn-customer-main:hover {
  background: var(--brand-red-dark);
  transform: translateY(-2px);
}

.playstore-btn {
  background: var(--brand-black);
  border: 1px solid var(--brand-gray-border);
  border-radius: var(--border-radius-button);
  padding: 0.9rem;
  font-weight: 500;
  transition: var(--transition-fast);
  color: var(--brand-white);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-decoration: none;
  cursor: pointer;
}

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

/* ============================================
   FOOTER / CONTACT BANNER
   ============================================ */
.contact-banner-fixed {
  background: #eeeeee;
  border-radius: 28px;
  padding: var(--spacing-md) var(--spacing-xl);
  margin-top: var(--spacing-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  box-shadow: var(--shadow-footer);
  width: 100%;
  border: 1px solid var(--brand-gray-border);
  font-size: 1rem;
  font-weight: 500;
}

.contact-banner-fixed div {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.contact-banner-fixed a {
  color: var(--brand-black);
  text-decoration: none;
  transition: var(--transition-fast);
}

.contact-banner-fixed a:hover {
  color: var(--brand-red);
}

/* Contact Link Styles */
.contact-link {
  color: var(--brand-black);
  background: rgba(255, 0, 0, 0.15);
  padding: 8px 22px;
  border-radius: var(--border-radius-button);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.85rem;
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--brand-gray-border);
  cursor: pointer;
}

.contact-link:hover {
  background: var(--brand-red);
  color: var(--brand-white);
  transform: translateY(-2px);
}

/* ============================================
   DIVIDERS
   ============================================ */
.divider-light {
  margin: 0.8rem 0;
  border: 0;
  height: 1px;
  background: var(--brand-red);
  opacity: 0.5;
}

/* ============================================
   OLD APPS CONTAINER
   ============================================ */
#old_isp_apps {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

/* ============================================
   FOCUS STATES FOR ACCESSIBILITY
   ============================================ */
.btn:focus,
.btn:active,
a:focus,
button:focus,
.contact-link:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(255, 0, 0, 0.4);
  border-radius: var(--border-radius-button);
}

/* ============================================
   CUSTOM SCROLLBAR
   ============================================ */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--brand-black);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb {
  background: var(--brand-red);
  border-radius: 5px;
  transition: var(--transition-fast);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--brand-red-dark);
}

/* Firefox Scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--brand-red) var(--brand-black);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
/* Tablet Landscape */
@media (max-width: 992px) {
  .card-header-modern h3 {
    font-size: 1.3rem;
  }
  
  .btn-primary-download {
    padding: 0.9rem 1.2rem;
  }
}

/* Tablet Portrait & Mobile */
@media (max-width: 768px) {
  body {
    padding: var(--spacing-md);
  }
  
  .card-header-modern {
    padding: 1.2rem 1.3rem 0.8rem 1.3rem;
  }
  
  .card-header-modern h3 {
    font-size: 1.2rem;
  }
  
  .card-body-modern {
    padding: 1.3rem;
  }
  
  .logo-wrapper {
    padding: 0.4rem 1.5rem;
  }
  
  .logo-img {
    max-height: 40px;
  }
  
  .contact-banner-fixed {
    flex-direction: column;
    text-align: center;
    padding: 1.2rem;
  }
  
  .contact-banner-fixed div {
    justify-content: center;
  }
  
  .btn-primary-download {
    padding: 0.8rem 1rem;
    font-size: 0.9rem;
  }
  
  .security-badge {
    font-size: 0.65rem;
  }
}

/* Mobile Small */
@media (max-width: 480px) {
  .card-header-modern h3 {
    font-size: 1rem;
    gap: 8px;
  }
  
  .card-header-modern h3 i {
    font-size: 1.2rem;
    padding: 6px;
  }
  
  .btn-outline-old {
    width: 100%;
    justify-content: center;
  }
  
  #old_isp_apps {
    flex-direction: column;
  }
  
  #old_isp_apps .btn-outline-old {
    width: 100%;
  }
  
  .badge-staff,
  .badge-customer {
    font-size: 0.6rem;
    padding: 0.2rem 0.8rem;
  }
  
  .sub-text {
    font-size: 0.75rem;
  }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
  .btn-primary-download,
  .btn-customer-main,
  .playstore-btn,
  .contact-action-buttons,
  .contact-banner-fixed,
  .old-version-area {
    display: none;
  }
  
  body {
    background: white;
    padding: 0;
    color: black;
  }
  
  .download-card {
    box-shadow: none;
    border: 1px solid #ddd;
    break-inside: avoid;
    page-break-inside: avoid;
  }
  
  .logo-img {
    max-height: 60px;
  }
  
  .card-header-modern {
    border-bottom: 1px solid #ddd;
  }
  
  .security-badge {
    border: 1px solid #ddd;
    background: none;
  }
}

/* ============================================
   LOADING STATES & ANIMATIONS
   ============================================ */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.loading {
  animation: pulse 1.5s ease-in-out infinite;
}

.fa-spinner,
.fa-pulse {
  margin-right: 8px;
}

.fa-spinner.fa-pulse {
  animation: spin 1s steps(8) infinite;
}

/* ============================================
   SMOOTH SCROLLING
   ============================================ */
html {
  scroll-behavior: smooth;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center {
  text-align: center;
}

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }

.pb-2 { padding-bottom: var(--spacing-sm); }

.w-100 {
  width: 100%;
}

.position-relative {
  position: relative;
}

.bg-white {
  background: var(--brand-white);
}

.small {
  font-size: 0.875rem;
}

/* ============================================
   HIGH CONTRAST MODE SUPPORT
   ============================================ */
@media (prefers-contrast: high) {
  .btn-primary-download {
    border: 2px solid var(--brand-white);
    outline: 1px solid var(--brand-black);
  }
  
  .download-card {
    border: 2px solid var(--brand-black);
  }
  
  .contact-link {
    border: 2px solid var(--brand-black);
  }
  
  .security-badge {
    border: 1px solid var(--brand-black);
    background: transparent;
  }
}

/* ============================================
   REDUCED MOTION PREFERENCE
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .btn-primary-download::before {
    display: none;
  }
}

/* ============================================
   DARK MODE SUPPORT (Optional)
   ============================================ */
@media (prefers-color-scheme: dark) {
  /* Only apply if user prefers dark mode - but we respect brand colors */
  body {
    background: var(--brand-white); /* Keep white as per brand */
  }
}

/* ============================================
   HOVER EFFECTS FOR TOUCH DEVICES
   ============================================ */
@media (hover: hover) {
  .download-card:hover {
    transform: translateY(-4px);
  }
  
  .btn-primary-download:hover {
    transform: translateY(-2px);
  }
}

@media (hover: none) {
  .download-card:active {
    transform: scale(0.99);
  }
  
  .btn-primary-download:active {
    transform: scale(0.98);
  }
}

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

/* ============================================
   END OF STYLESHEET
   ============================================ */