/* ============================================
   AnointTech - Main Styles
   Responsive, Mobile-First Design
   ============================================ */

/* ============================================
   CSS Variables (Design Tokens)
   ============================================ */
:root {
  /* Color Palette - Light Theme */
  --color-primary: #0B2545;
  --color-primary-light: #13315C;
  --color-primary-dark: #051729;
  --color-secondary: #D4AF37;
  --color-accent: #8B4513;

  --color-text: #1A1A1A;
  --color-text-secondary: #4A4A4A;
  --color-text-muted: #707070;

  --color-bg: #FFFFFF;
  --color-bg-secondary: #F5F5F5;
  --color-bg-tertiary: #E8E8E8;

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

  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-info: #3B82F6;

  /* Typography */
  --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-family-heading: 'Playfair Display', 'Georgia', serif;
  --font-family-mono: 'Courier New', Courier, monospace;

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3rem;

  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Spacing */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  --spacing-24: 6rem;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-base: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-base: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;

  /* Layout */
  --container-max-width: 1200px;
  --header-height: 70px;
  --footer-height: 300px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
  transition: background-color var(--transition-base), color var(--transition-base);
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  margin-bottom: var(--spacing-4);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
  margin-bottom: var(--spacing-4);
}

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

a:hover,
a:focus {
  color: var(--color-primary-light);
  text-decoration: underline;
}

a:focus {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

/* ============================================
   Layout
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

.main-content {
  min-height: calc(100vh - var(--header-height) - var(--footer-height));
  padding: var(--spacing-8) 0;
}

/* ============================================
   Accessibility
   ============================================ */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: #fff;
  padding: var(--spacing-2) var(--spacing-4);
  text-decoration: none;
  z-index: 9999;
}

.skip-link:focus {
  top: 0;
}

.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;
}

/* ============================================
   Header & Navigation
   ============================================ */
.header {
  background: var(--color-bg);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  height: var(--header-height);
  transition: background-color var(--transition-base);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: var(--spacing-8);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

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

.navbar-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-6);
  margin: 0;
  padding: 0;
}

.nav-link {
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-2) var(--spacing-3);
  border-radius: var(--radius-base);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.nav-link:hover {
  background: var(--color-bg-secondary);
  text-decoration: none;
}

.nav-link.active {
  color: var(--color-secondary);
  background: var(--color-bg-secondary);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

.action-button {
  background: transparent;
  border: none;
  padding: var(--spacing-2);
  cursor: pointer;
  border-radius: var(--radius-base);
  color: var(--color-text);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.action-button:hover {
  background: var(--color-bg-secondary);
}

.action-button:focus {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  background: transparent;
  border: none;
  padding: var(--spacing-2);
  cursor: pointer;
  z-index: var(--z-fixed);
  position: relative;
}

.mobile-menu-toggle:hover {
  opacity: 0.7;
}

.hamburger {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: all var(--transition-fast);
  display: block;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Language Dropdown */
.language-selector {
  position: relative;
}

.language-dropdown {
  position: absolute;
  top: calc(100% + var(--spacing-2));
  right: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  box-shadow: var(--shadow-lg);
  min-width: 150px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
  z-index: var(--z-dropdown);
}

.language-selector:hover .language-dropdown,
.language-button:focus + .language-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: block;
  padding: var(--spacing-3) var(--spacing-4);
  color: var(--color-text);
  text-decoration: none;
  transition: background-color var(--transition-fast);
}

.dropdown-item:hover {
  background: var(--color-bg-secondary);
}

.dropdown-item.active {
  background: var(--color-bg-tertiary);
  color: var(--color-secondary);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--color-primary);
  color: #fff;
  padding: var(--spacing-12) 0 var(--spacing-8);
  margin-top: var(--spacing-16);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-8);
  margin-bottom: var(--spacing-8);
}

.footer-section h3 {
  color: var(--color-secondary);
  margin-bottom: var(--spacing-4);
}

.footer-logo img {
  filter: brightness(0) invert(1);
}

.footer-tagline {
  color: rgba(255, 255, 255, 0.8);
  margin: var(--spacing-4) 0;
}

.social-links {
  display: flex;
  gap: var(--spacing-4);
  margin-top: var(--spacing-4);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  transition: all var(--transition-fast);
}

.social-link:hover {
  background: var(--color-secondary);
  transform: translateY(-2px);
  text-decoration: none;
}

.footer-links {
  list-style: none;
  padding: 0;
}

.footer-links li {
  margin-bottom: var(--spacing-3);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-secondary);
  text-decoration: none;
}

.footer-contact {
  list-style: none;
  padding: 0;
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  margin-bottom: var(--spacing-3);
  color: rgba(255, 255, 255, 0.8);
}

.footer-contact a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-contact a:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

/* Phone Number Shading - Anti-Spam Protection */
.phone-shaded {
  position: relative;
  display: inline-block;
  color: var(--color-text-secondary);
  filter: blur(5px);
  opacity: 0.3;
  text-shadow: 0 0 12px rgba(0, 0, 0, 0.8);
  transition: all var(--transition-base);
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  pointer-events: none;
}

.phone-shaded:hover {
  filter: blur(4px);
  opacity: 0.4;
  text-shadow: 0 0 10px rgba(0, 0, 0, 0.7);
}

/* Alternative shading with background overlay */
.phone-obscured {
  position: relative;
  display: inline-block;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.1) 0%,
    rgba(255, 255, 255, 0.05) 50%,
    rgba(255, 255, 255, 0.1) 100%
  );
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  filter: blur(1px) brightness(0.6);
  opacity: 0.5;
  transition: all var(--transition-base);
}

.phone-obscured:hover {
  filter: blur(0.3px) brightness(0.8);
  opacity: 0.8;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.copyright {
  color: rgba(255, 255, 255, 0.6);
  margin: 0;
}

.footer-links-inline {
  display: flex;
  gap: var(--spacing-4);
  align-items: center;
}

.footer-links-inline a {
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--font-size-sm);
}

.separator {
  color: rgba(255, 255, 255, 0.3);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3) var(--spacing-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  border-radius: var(--radius-base);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

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

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

.btn-primary:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

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

.btn-secondary:hover {
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
}

.btn-large {
  padding: var(--spacing-4) var(--spacing-8);
  font-size: var(--font-size-lg);
}

/* ============================================
   Forms
   ============================================ */
.form-group {
  margin-bottom: var(--spacing-6);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-2);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-3) var(--spacing-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  background: var(--color-bg);
  color: var(--color-text);
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(11, 37, 69, 0.1);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  padding: var(--spacing-16) 0;
  background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg) 100%);
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-12);
  align-items: center;
}

.hero-title {
  font-size: var(--font-size-5xl);
  margin-bottom: var(--spacing-6);
  color: var(--color-primary);
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-8);
}

.hero-actions {
  display: flex;
  gap: var(--spacing-4);
  flex-wrap: wrap;
}

/* ============================================
   Loading States
   ============================================ */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.loading-overlay.active {
  opacity: 1;
  visibility: visible;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: var(--radius-full);
  animation: spin 1s linear infinite;
}

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

/* ============================================
   Responsive Design - Tablet
   ============================================ */
@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.75rem;
  }

  .navbar-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-bg);
    flex-direction: column;
    padding: var(--spacing-4);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
  }

  .navbar-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .hero .container {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-4);
    text-align: center;
  }
}

/* ============================================
   Responsive Design - Mobile
   ============================================ */
@media (max-width: 480px) {
  :root {
    --font-size-5xl: 2rem;
    --font-size-4xl: 1.75rem;
    --spacing-16: 3rem;
  }

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

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}

/* ============================================
   Utility Classes - Phone Number Concealment
   ============================================ */

/**
 * Visually Hidden
 * Hides content visually but keeps it accessible to screen readers
 * Does NOT use display: none
 */
.visually-hidden,
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border-width: 0 !important;
}

/**
 * Hide Phone Numbers
 * Multiple techniques to conceal phone numbers without display: none
 */

/* Method 1: Clip & Position (Most Accessible) */
.hide-phone {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* Method 2: Opacity & Pointer Events */
.hide-phone-opacity {
  opacity: 0;
  pointer-events: none;
  position: absolute;
  z-index: -1;
}

/* Method 3: Text Indent (for inline text) */
.hide-phone-text {
  text-indent: -9999px;
  overflow: hidden;
  line-height: 0;
  font-size: 0;
}

/* Method 4: Font Size Zero */
.hide-phone-zero {
  font-size: 0;
  line-height: 0;
  color: transparent;
}

/* Method 5: Clip Path (Modern Browsers) */
.hide-phone-clip {
  clip-path: inset(100%);
  clip: rect(0 0 0 0);
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
  width: 1px;
  height: 1px;
}

/* Method 6: Scale to Zero */
.hide-phone-scale {
  transform: scale(0);
  position: absolute;
  width: 1px;
  height: 1px;
}

/**
 * Contact Link Wrapper
 * Hides phone number but keeps link functional
 */
.contact-link {
  position: relative;
}

.contact-link .phone-number {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/**
 * WhatsApp Link Phone Concealment
 * Specifically for hiding phone numbers in WhatsApp links
 */
.whatsapp-link .phone-text,
.telegram-link .phone-text {
  opacity: 0;
  position: absolute;
  z-index: -1;
  width: 1px;
  height: 1px;
}