/*==============================================================================
  CELL STATION - DESIGN TOKENS
  Modern CSS Custom Properties for consistent styling

  This file provides a design system foundation without breaking existing styles.
  All values use CSS custom properties for easy theming and consistency.
==============================================================================*/

:root {
  /*=== COLORS ===*/

  /* Primary Brand Colors */
  --color-primary: #007bff;           /* Blue - icons, accents */
  --color-primary-dark: #0056b3;      /* Blue - hover states */
  --color-primary-light: #e8f4ff;     /* Blue - light backgrounds */

  /* Accent Colors */
  --color-accent: #ffaa19;            /* Orange - CTAs, highlights */
  --color-accent-dark: #e69500;       /* Orange - hover states */
  --color-accent-light: #fff8eb;      /* Orange - light backgrounds */

  /* Neutral Colors */
  --color-dark: #1a1a2e;              /* Near black - headings */
  --color-text: #4a4a4a;              /* Dark gray - body text */
  --color-text-muted: #6c757d;        /* Medium gray - secondary text */
  --color-text-light: #9a9a9a;        /* Light gray - captions */
  --color-border: #e0e0e0;            /* Borders */
  --color-border-light: #f0f0f0;      /* Light borders */

  /* Background Colors */
  --color-bg-white: #ffffff;
  --color-bg-light: #f8f9fa;          /* Light sections */
  --color-bg-dark: #18305d;           /* Dark sections (navy) */
  --color-bg-darker: #0f1d3a;         /* Footer background */

  /* Semantic Colors */
  --color-success: #28a745;
  --color-warning: #ffc107;
  --color-error: #dc3545;
  --color-info: #17a2b8;

  /* Link Colors */
  --color-link: var(--color-primary);
  --color-link-hover: var(--color-accent);
  --color-link-light: #dddddd;        /* Links on dark backgrounds */
  --color-link-light-hover: #ffffff;

  /*=== TYPOGRAPHY ===*/

  /* Font Families */
  --font-primary: 'Raleway', sans-serif;    /* Headings */
  --font-secondary: 'Poppins', sans-serif;  /* Body text */

  /* Font Sizes - Desktop */
  --text-xs: 0.75rem;     /* 12px */
  --text-sm: 0.8125rem;   /* 13px */
  --text-base: 1rem;      /* 16px */
  --text-lg: 1.125rem;    /* 18px */
  --text-xl: 1.25rem;     /* 20px */
  --text-2xl: 1.5rem;     /* 24px */
  --text-3xl: 1.875rem;   /* 30px */
  --text-4xl: 2.25rem;    /* 36px */
  --text-5xl: 2.5rem;     /* 40px */
  --text-6xl: 3rem;       /* 48px */

  /* Font Weights */
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;

  /* Line Heights */
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 1.75;

  /* Letter Spacing */
  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  --tracking-wider: 0.05em;
  --tracking-widest: 0.1em;

  /*=== SPACING ===*/
  /* Based on 4px grid */
  --space-0: 0;
  --space-1: 0.25rem;     /* 4px */
  --space-2: 0.5rem;      /* 8px */
  --space-3: 0.75rem;     /* 12px */
  --space-4: 1rem;        /* 16px */
  --space-5: 1.25rem;     /* 20px */
  --space-6: 1.5rem;      /* 24px */
  --space-8: 2rem;        /* 32px */
  --space-10: 2.5rem;     /* 40px */
  --space-12: 3rem;       /* 48px */
  --space-16: 4rem;       /* 64px */
  --space-20: 5rem;       /* 80px */
  --space-24: 6rem;       /* 96px */
  --space-32: 8rem;       /* 128px */

  /*=== BORDERS ===*/
  --radius-none: 0;
  --radius-sm: 0.25rem;   /* 4px */
  --radius-md: 0.5rem;    /* 8px */
  --radius-lg: 0.75rem;   /* 12px */
  --radius-xl: 1rem;      /* 16px */
  --radius-2xl: 1.5rem;   /* 24px */
  --radius-full: 9999px;  /* Pill shape */

  --border-width: 1px;
  --border-width-2: 2px;

  /*=== SHADOWS ===*/
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.06);

  /* Colored shadows for depth */
  --shadow-primary: 0 4px 14px rgba(0, 123, 255, 0.25);
  --shadow-accent: 0 4px 14px rgba(255, 170, 25, 0.35);

  /*=== TRANSITIONS ===*/
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
  --transition-slower: 500ms ease;

  /* Specific transitions */
  --transition-colors: color var(--transition-base), background-color var(--transition-base), border-color var(--transition-base);
  --transition-transform: transform var(--transition-base);
  --transition-shadow: box-shadow var(--transition-base);
  --transition-all: all var(--transition-base);

  /*=== Z-INDEX SCALE ===*/
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;

  /*=== CONTAINER WIDTHS ===*/
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1200px;
  --container-2xl: 1400px;
}

/*==============================================================================
  MODERN ENHANCEMENTS
  These styles layer on top of existing Bootstrap/custom styles
==============================================================================*/

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

/*=== IMPROVED FOCUS STATES (Accessibility) ===*/
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/*=== LINK TRANSITIONS ===*/
a {
  transition: var(--transition-colors);
}

/*=== BUTTON ENHANCEMENTS ===*/
.btn {
  transition: var(--transition-all);
  position: relative;
}

.btn:hover {
  transform: translateY(-1px);
}

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

.btn-primary:hover {
  box-shadow: var(--shadow-accent);
}

/*=== CARD ENHANCEMENTS ===*/
.card {
  transition: var(--transition-all);
}

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

.product-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.product-item:hover {
  box-shadow: var(--shadow-xl);
}

.blog-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.blog-item:hover {
  box-shadow: var(--shadow-lg);
}

/*=== FORM ENHANCEMENTS ===*/
.form-control {
  transition: var(--transition-all);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-md);
}

.form-control:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(255, 170, 25, 0.15);
}

/*=== IMAGE ENHANCEMENTS ===*/
img {
  transition: var(--transition-transform);
}

.card img:hover,
.blog-item img:hover {
  transform: scale(1.03);
}

/*=== SECTION SPACING UTILITIES ===*/
.section-modern {
  padding-top: var(--space-20);
  padding-bottom: var(--space-20);
}

@media (max-width: 767px) {
  .section-modern {
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
  }
}

/*=== STICKY HEADER ===*/
.cm-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: var(--color-bg-white);
  transition: var(--transition-all);
}

.cm-header .header {
  background: var(--color-bg-white);
  box-shadow: var(--shadow-sm);
}

/* When scrolled, add more shadow */
.cm-header.scrolled .header {
  box-shadow: var(--shadow-md);
}

/*=== NAV LINK ENHANCEMENTS ===*/
.navbar-nav .nav-link {
  position: relative;
  transition: var(--transition-colors);
  padding: 0.75rem 1rem;
  font-weight: var(--font-semibold);
}

/* Yellow underline using ::before (since ::after is used by dropdown-toggle for caret) */
.navbar-nav .nav-link::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: var(--transition-slow);
  transform: translateX(-50%);
}

.navbar-nav .nav-link:hover::before,
.navbar-nav .nav-link.active::before,
.navbar-nav .nav-item.active .nav-link::before {
  width: 80%;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--color-accent);
}

/*=== MOBILE NAVIGATION ENHANCEMENTS ===*/
@media (max-width: 991px) {
  .navbar-collapse {
    background: var(--color-bg-white);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    margin-top: var(--space-2);
  }

  .navbar-nav .nav-link {
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--color-border-light);
  }

  .navbar-nav .nav-link:last-child {
    border-bottom: none;
  }

  .navbar-nav .nav-link::before {
    display: none;
  }

  .navbar-toggler {
    border: none;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: var(--transition-all);
  }

  .navbar-toggler:hover {
    background: var(--color-bg-light);
  }

  .navbar-toggler:focus {
    box-shadow: none;
  }
}

/*=== ICON ENHANCEMENTS ===*/
.icon {
  transition: var(--transition-transform);
}

.icon:hover {
  transform: scale(1.1);
}

/*=== TESTIMONIAL ENHANCEMENTS ===*/
.testimonial-item {
  background: var(--color-bg-white);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-all);
}

.testimonial-item:hover {
  box-shadow: var(--shadow-md);
}

/*=== WHY CHOOSE US CARD ENHANCEMENTS ===*/
.why-choose-us .block {
  background: var(--color-bg-white);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-all);
}

.why-choose-us .block:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

/*=== FEATURES CARD ENHANCEMENTS ===*/
.cm-features .block {
  background: var(--color-bg-white);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: var(--transition-all);
}

.cm-features .block:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-2px);
}

/*=== FOOTER LINK ENHANCEMENTS ===*/
.footer-links a {
  transition: var(--transition-colors);
  position: relative;
}

.footer-links a:hover {
  color: var(--color-accent) !important;
  padding-left: 5px;
}

/*=== SCROLL TO TOP BUTTON ===*/
.scroll-to-top {
  background: var(--color-accent);
  box-shadow: var(--shadow-lg);
  transition: var(--transition-all);
}

.scroll-to-top:hover {
  background: var(--color-accent-dark);
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

/*=== SOCIAL LINKS ===*/
.social-links a {
  transition: var(--transition-all);
}

.social-links a:hover {
  transform: translateY(-3px);
  color: var(--color-accent) !important;
}

/*=== RATING STARS ===*/
.rating .fas {
  transition: var(--transition-transform);
}

.rating:hover .fas {
  transform: scale(1.1);
}

/*=== CTA SECTION ===*/
.cm-cta {
  position: relative;
}

.cm-cta .btn {
  box-shadow: var(--shadow-lg);
}

.cm-cta .btn:hover {
  box-shadow: var(--shadow-xl);
}

/*=== MODERN UTILITY CLASSES ===*/

/* Text colors using tokens */
.text-primary-modern { color: var(--color-primary); }
.text-accent-modern { color: var(--color-accent); }
.text-dark-modern { color: var(--color-dark); }
.text-muted-modern { color: var(--color-text-muted); }

/* Background colors using tokens */
.bg-primary-modern { background-color: var(--color-primary); }
.bg-accent-modern { background-color: var(--color-accent); }
.bg-light-modern { background-color: var(--color-bg-light); }
.bg-dark-modern { background-color: var(--color-bg-dark); }

/* Shadow utilities */
.shadow-sm-modern { box-shadow: var(--shadow-sm); }
.shadow-md-modern { box-shadow: var(--shadow-md); }
.shadow-lg-modern { box-shadow: var(--shadow-lg); }
.shadow-xl-modern { box-shadow: var(--shadow-xl); }

/* Border radius utilities */
.rounded-sm-modern { border-radius: var(--radius-sm); }
.rounded-md-modern { border-radius: var(--radius-md); }
.rounded-lg-modern { border-radius: var(--radius-lg); }
.rounded-xl-modern { border-radius: var(--radius-xl); }

/* Spacing utilities (can be added as needed) */
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/*=== MOBILE STICKY CTA BAR ===*/
.mobile-sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-bg-white);
  padding: var(--space-3) var(--space-4);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
  z-index: var(--z-fixed);
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    transform: translateY(100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.mobile-sticky-cta .cta-buttons {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
}

.mobile-sticky-cta .btn {
  flex: 1;
  max-width: 160px;
  padding: var(--space-3) var(--space-4);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.mobile-sticky-cta .btn-call {
  background: var(--color-accent);
  color: #333;
}

.mobile-sticky-cta .btn-quote {
  background: var(--color-primary);
  color: white;
}

/* Show only on mobile */
@media (max-width: 767px) {
  .mobile-sticky-cta {
    display: block;
  }

  /* Add padding to body to prevent content being hidden behind sticky bar */
  body {
    padding-bottom: 70px;
  }

  /* Hide default scroll-to-top on mobile when sticky CTA is present */
  .scroll-to-top {
    bottom: 80px;
  }
}

/*=== POLICY PAGES ENHANCEMENTS ===*/
.policy-content {
  max-width: 800px;
  margin: 0 auto;
}

.policy-content h1,
.policy-content h2,
.policy-content h3,
.policy-content h4 {
  color: var(--color-dark);
  margin-top: var(--space-8);
  margin-bottom: var(--space-4);
}

.policy-content h1:first-child,
.policy-content h2:first-child {
  margin-top: 0;
}

.policy-content p {
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
}

.policy-content ul,
.policy-content ol {
  margin-bottom: var(--space-4);
  padding-left: var(--space-6);
}

.policy-content li {
  margin-bottom: var(--space-2);
  line-height: var(--leading-relaxed);
}

.policy-content a {
  color: var(--color-primary);
  text-decoration: underline;
}

.policy-content a:hover {
  color: var(--color-accent);
}

/*=== PAGE CONTENT IMPROVEMENTS ===*/
.page-content {
  min-height: 50vh;
}

.page-content .container {
  max-width: 1200px;
}

/*=== LOADING STATES ===*/
.btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.fa-spin {
  animation: fa-spin 1s infinite linear;
}

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

/*=== FORM VALIDATION STYLES ===*/
.form-control:invalid:focus {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.15);
}

.form-control:valid:focus {
  border-color: var(--color-success);
  box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.15);
}

/*=== FEATURES CARDS (Homepage 3-column icons) ===*/
.cm-features .row {
  display: flex;
  flex-wrap: wrap;
}

.cm-features .row > [class*="col-"] {
  display: flex;
  margin-bottom: var(--space-6);
}

.cm-features .block {
  display: flex;
  align-items: flex-start;
  width: 100%;
  height: 100%;
  padding: var(--space-6);
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-all);
}

.cm-features .block:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.cm-features .block .icon {
  flex-shrink: 0;
  width: 70px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: var(--space-5);
  border-radius: var(--radius-md);
}

.cm-features .block .icon img {
  max-width: 40px;
  max-height: 40px;
  object-fit: contain;
}

.cm-features .block > div:last-child {
  flex: 1;
  min-width: 0;
}

.cm-features .block h4 {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-2);
  line-height: var(--leading-tight);
}

.cm-features .block p {
  font-size: var(--text-base);
  color: var(--color-text);
  margin-bottom: 0;
  line-height: var(--leading-relaxed);
  /* Ensure consistent text height */
  min-height: 3em;
}

@media (max-width: 991px) {
  .cm-features .block p {
    min-height: auto;
  }
}

/*=== PRINT STYLES ===*/
@media print {
  .cm-header,
  .footer,
  .footer-bottom,
  .scroll-to-top,
  .mobile-sticky-cta {
    display: none !important;
  }

  .page-content {
    padding: 0 !important;
  }
}

/*=== WHATSAPP FLOATING BUTTON ===*/
.whatsapp-float {
  position: fixed;
  bottom: 100px;
  right: 20px;
  z-index: var(--z-fixed);
  width: 60px;
  height: 60px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
  transition: var(--transition-all);
  text-decoration: none;
  animation: whatsapp-pulse 2s infinite;
}

@keyframes whatsapp-pulse {
  0% {
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
  }
  50% {
    box-shadow: 0 4px 25px rgba(37, 211, 102, 0.6), 0 0 0 12px rgba(37, 211, 102, 0.15);
  }
  100% {
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
  }
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
  animation: none;
}

.whatsapp-float i {
  color: white;
  font-size: 32px;
  animation: whatsapp-bounce 2s ease-in-out infinite;
}

@keyframes whatsapp-bounce {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  25% {
    transform: translateY(-4px) rotate(-8deg);
  }
  50% {
    transform: translateY(0) rotate(0deg);
  }
  75% {
    transform: translateY(-4px) rotate(8deg);
  }
}

.whatsapp-float:hover i {
  animation: none;
  transform: scale(1.1);
}

.whatsapp-float .tooltip-text {
  position: absolute;
  right: 70px;
  background: var(--color-dark);
  color: white;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-all);
}

.whatsapp-float:hover .tooltip-text {
  opacity: 1;
  visibility: visible;
}

@media (max-width: 767px) {
  .whatsapp-float {
    bottom: 80px;
    right: 15px;
    width: 55px;
    height: 55px;
  }

  .whatsapp-float i {
    font-size: 28px;
  }

  .whatsapp-float .tooltip-text {
    display: none;
  }
}

/*=== TRUST BADGES BAR ===*/
.trust-badges-bar {
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, #0f1d3a 100%);
  padding: var(--space-4) 0;
  text-align: center;
}

.trust-badges-bar .badge-item {
  display: inline-flex;
  align-items: center;
  margin: 0 var(--space-6);
  color: white;
  font-size: var(--text-sm);
}

.trust-badges-bar .badge-item i {
  color: var(--color-accent);
  margin-right: var(--space-2);
  font-size: var(--text-lg);
}

.trust-badges-bar .badge-item strong {
  color: var(--color-accent);
}

@media (max-width: 767px) {
  .trust-badges-bar .badge-item {
    margin: var(--space-2) var(--space-3);
    font-size: var(--text-xs);
  }
}

/*=== TESTIMONIAL CARD HOVER ===*/
.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.15) !important;
}