/*
 * CLOUDSPATIUM STYLES
 * Unified CSS file combining Tailwind utilities and custom styles
 */

/* =================================================================
   VARIABLE FONTS (2025 TYPOGRAPHY TRENDS)
   ================================================================= */
@import url('https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap');

/* =================================================================
   TAILWIND DIRECTIVES
   ================================================================= */
@tailwind components;
@tailwind utilities;

/* =================================================================
   CSS CUSTOM PROPERTIES (2025 TRENDS)
   ================================================================= */
:root {
  /* Typography system with variable fonts */
  --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  
  /* Animation timings */
  --transition-fast: 0.15s ease-out;
  --transition-normal: 0.3s ease-out;
  --transition-slow: 0.5s ease-out;
  --transition-bounce: 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Original Cloudspatium Color Palette */
  /* Primary Colors - Professional Dark Blue */
  --color-primary-50: #f0f8ff;
  --color-primary-100: #e0f2fe;
  --color-primary-200: #bae6fd;
  --color-primary-300: #7dd3fc;
  --color-primary-400: #38bdf8;
  --color-primary-500: #00578f;
  --color-primary-600: #004a7a;
  --color-primary-700: #003d65;
  --color-primary-800: #002a47;
  --color-primary-900: #001829;
  
  /* Accent Colors - Energetic Orange */
  --color-accent-50: #fff7ed;
  --color-accent-100: #ffedd5;
  --color-accent-200: #fed7aa;
  --color-accent-300: #fdba74;
  --color-accent-400: #fb923c;
  --color-accent-500: #ff6b35;
  --color-accent-600: #e55a2b;
  --color-accent-700: #cc4921;
  --color-accent-800: #9a3412;
  --color-accent-900: #7c2d12;
  
  /* Success Colors - Google Voice Green */
  --color-success-50: #f0fdf4;
  --color-success-100: #dcfce7;
  --color-success-200: #bbf7d0;
  --color-success-300: #86efac;
  --color-success-400: #4ade80;
  --color-success-500: #0F9D58;
  --color-success-600: #0d8a4d;
  --color-success-700: #0a7142;
  --color-success-800: #085d37;
  --color-success-900: #064e2e;
  
  /* Neutral Colors - Cool Professional Grays */
  --color-neutral-50: #f9fafb;
  --color-neutral-100: #f3f4f6;
  --color-neutral-200: #e5e7eb;
  --color-neutral-300: #d1d5db;
  --color-neutral-400: #9ca3af;
  --color-neutral-500: #6b7280;
  --color-neutral-600: #4b5563;
  --color-neutral-700: #374151;
  --color-neutral-800: #1f2937;
  --color-neutral-900: #111827;
  
  /* Sophisticated Shadow System (B2B Professional) */
  --shadow-color: 210deg 20% 30%;
  --shadow-elevation-low: 
    0px 0.2px 0.3px hsl(var(--shadow-color) / 0.24),
    0px 0.4px 0.5px -1.2px hsl(var(--shadow-color) / 0.24),
    0px 0.9px 1.1px -2.5px hsl(var(--shadow-color) / 0.24);
  --shadow-elevation-medium: 
    0px 0.2px 0.3px hsl(var(--shadow-color) / 0.26),
    0px 1.2px 1.4px -0.8px hsl(var(--shadow-color) / 0.26),
    0px 3.1px 3.5px -1.7px hsl(var(--shadow-color) / 0.26),
    0px 7.5px 8.4px -2.5px hsl(var(--shadow-color) / 0.26);
  --shadow-elevation-high: 
    0px 0.2px 0.3px hsl(var(--shadow-color) / 0.24),
    0px 2.2px 2.5px -0.4px hsl(var(--shadow-color) / 0.24),
    0px 4.1px 4.6px -0.7px hsl(var(--shadow-color) / 0.24),
    0px 6.7px 7.5px -1.1px hsl(var(--shadow-color) / 0.24),
    0px 10.7px 12px -1.4px hsl(var(--shadow-color) / 0.24),
    0px 16.9px 19px -1.8px hsl(var(--shadow-color) / 0.24),
    0px 26.1px 29.3px -2.1px hsl(var(--shadow-color) / 0.24),
    0px 39.2px 44.1px -2.5px hsl(var(--shadow-color) / 0.24);
    
  /* Original colored shadows */
  --shadow-primary: 0 3px 12px 0 rgba(0, 87, 143, 0.12);
  --shadow-primary-hover: 0 5px 18px 0 rgba(0, 87, 143, 0.18);
  --shadow-accent: 0 3px 12px 0 rgba(255, 107, 53, 0.12);
  --shadow-accent-hover: 0 5px 18px 0 rgba(255, 107, 53, 0.18);
  --shadow-success: 0 3px 12px 0 rgba(15, 157, 88, 0.12);
  --shadow-success-hover: 0 5px 18px 0 rgba(15, 157, 88, 0.18);
  
  /* Subtle glass morphism effects for B2B */
  --glass-bg: rgba(248, 250, 252, 0.08);
  --glass-border: rgba(203, 213, 225, 0.15);
  --glass-backdrop: blur(8px);
}

/* =================================================================
   SCROLL-DRIVEN ANIMATIONS (2025 TREND)
   ================================================================= */

/* Reading progress bar */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary-500), var(--color-accent-500));
  transform-origin: 0 50%;
  transform: scaleX(0);
  z-index: 9999;
  transition: transform 0.1s ease-out;
}

/* CSS-only scroll progress for modern browsers */
@supports (animation-timeline: scroll()) {
  .reading-progress {
    animation: reading-progress linear;
    animation-timeline: scroll(root);
    animation-range: 0% 100%;
  }
  
  @keyframes reading-progress {
    from { transform: scaleX(0); }
    to { transform: scaleX(1); }
  }
}

/* Scroll reveal animations */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered animation delays */
.scroll-reveal:nth-child(1) { transition-delay: 0.1s; }
.scroll-reveal:nth-child(2) { transition-delay: 0.2s; }
.scroll-reveal:nth-child(3) { transition-delay: 0.3s; }
.scroll-reveal:nth-child(4) { transition-delay: 0.4s; }

/* CSS-only scroll reveal for modern browsers */
@supports (animation-timeline: view()) {
  .section-animate {
    animation: section-reveal linear;
    animation-timeline: view();
    animation-range: entry 0% entry 30%;
  }
  
  @keyframes section-reveal {
    from {
      opacity: 0;
      transform: translateY(30px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}

/* =================================================================
   MODERN TYPOGRAPHY SYSTEM (2025)
   ================================================================= */

/* Base typography with variable fonts */
html {
  font-family: var(--font-family-base);
  font-weight: var(--font-weight-normal);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family-base);
  font-weight: var(--font-weight-normal);
  line-height: 1.6;
}

/* Responsive typography with clamp() */
.text-responsive {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  line-height: 1.6;
}

.heading-responsive {
  font-size: clamp(1.5rem, 4vw, 3rem);
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.heading-xl {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: var(--font-weight-extrabold);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.subheading {
  font-size: clamp(1.125rem, 3vw, 1.5rem);
  font-weight: var(--font-weight-semibold);
  line-height: 1.4;
  letter-spacing: -0.01em;
}

/* Animated font weight changes */
.text-weight-animated {
  font-weight: var(--font-weight-normal);
  transition: font-weight var(--transition-normal);
}

.text-weight-animated:hover {
  font-weight: var(--font-weight-semibold);
}

/* Enhanced readability */
.text-readable {
  font-size: clamp(1rem, 2.2vw, 1.125rem);
  line-height: 1.7;
  color: var(--color-neutral-700);
  max-width: 90ch;
  margin: 0 auto;
  text-align: justify;
  text-justify: inter-word;
  hyphens: auto;
  word-spacing: 0.1em;
  letter-spacing: 0.01em;
}

/* =================================================================
   MODERN MICRO-ANIMATIONS (2025 TRENDS)
   ================================================================= */

/* Enhanced button animations with modern shadows */
.btn-modern {
  transition: all var(--transition-normal);
  transform: translateY(0);
  box-shadow: var(--shadow-elevation-low);
}

.btn-modern:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-elevation-medium);
}

.btn-modern:active {
  transform: translateY(0);
  transition-duration: 0.1s;
  box-shadow: var(--shadow-elevation-low);
}

/* Primary button with colored shadow */
.btn-primary {
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-600));
  box-shadow: var(--shadow-primary);
  transition: all var(--transition-normal);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-primary-hover);
  background: linear-gradient(135deg, var(--color-primary-400), var(--color-primary-500));
}

/* Accent button with colored shadow */
.btn-accent {
  background: linear-gradient(135deg, var(--color-accent-500), var(--color-accent-600));
  box-shadow: var(--shadow-accent);
  transition: all var(--transition-normal);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent-hover);
  background: linear-gradient(135deg, var(--color-accent-400), var(--color-accent-500));
}

/* Success button (phone button) with colored shadow and enhanced animations */
.btn-success {
  background: linear-gradient(135deg, var(--color-success-500), var(--color-success-600));
  box-shadow: var(--shadow-success);
  transition: all var(--transition-normal);
  border: 2px solid #fff !important;
}

.btn-success:hover {
  box-shadow: var(--shadow-success-hover);
  background: linear-gradient(135deg, var(--color-success-400), var(--color-success-500));
  border-color: rgba(255, 255, 255, 0.9) !important;
}

/* Enhanced card hover effects with modern elevation */
.card-hover {
  transition: all var(--transition-normal);
  transform: translateY(0) scale(1);
  box-shadow: var(--shadow-elevation-low);
}

.card-hover:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: var(--shadow-elevation-high);
}

/* Glass morphism card effect */
.card-glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
  transition: all var(--transition-normal);
}

.card-glass:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-4px);
  box-shadow: var(--shadow-elevation-medium);
}

/* Modern icon animations with depth */
.icon-hover {
  transition: all var(--transition-bounce);
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.icon-hover:hover {
  transform: scale(1.1) rotate(5deg) translateY(-2px);
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.15));
}

/* Floating animation for special elements */
.floating {
  animation: floating 3s ease-in-out infinite;
}

@keyframes floating {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* Modern link underline animation */
.link-animated {
  position: relative;
  text-decoration: none;
  transition: color var(--transition-fast);
  overflow: hidden;
}

.link-animated::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -2px;
  left: 50%;
  background: linear-gradient(90deg, var(--color-primary-500), var(--color-accent-500));
  transition: all var(--transition-normal);
  transform: translateX(-50%);
}

.link-animated:hover::after {
  width: 100%;
}

/* Gradient text effect */
.text-gradient {
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-accent-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Modern pulse animation with colored glow */
.pulse-modern {
  animation: pulse-modern 2s infinite;
}

@keyframes pulse-modern {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.4);
  }
  50% {
    box-shadow: 0 0 0 20px rgba(59, 130, 246, 0);
  }
}

/* Neumorphism effect */
.neumorphism {
  background: var(--color-neutral-100);
  box-shadow: 
    8px 8px 16px var(--color-neutral-300),
    -8px -8px 16px var(--color-neutral-50);
  transition: all var(--transition-normal);
}

.neumorphism:hover {
  box-shadow: 
    12px 12px 24px var(--color-neutral-300),
    -12px -12px 24px var(--color-neutral-50);
}

/* Pressed neumorphism state */
.neumorphism:active,
.neumorphism.pressed {
  box-shadow: 
    inset 4px 4px 8px var(--color-neutral-300),
    inset -4px -4px 8px var(--color-neutral-50);
}

/* Modern loading spinner */
.spinner-modern {
  width: 24px;
  height: 24px;
  border: 3px solid var(--color-neutral-200);
  border-top: 3px solid var(--color-primary-500);
  border-radius: 50%;
  animation: spin-modern 1s linear infinite;
}

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

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

/* =================================================================
   UTILITY CLASSES
   ================================================================= */
.h-grow { 
  transition: all .2s ease-in-out; 
}
.h-grow:hover { 
  transform: scale(1.1); 
}

/* =================================================================
   BASE STYLES
   ================================================================= */
* {
  box-sizing: border-box;
}

/* Typography styles moved to MODERN TYPOGRAPHY SYSTEM section above */

p {
  margin: 1rem 0;
}

.main {
  scroll-snap-type: y mandatory;
}

/* =================================================================
   LAYOUT COMPONENTS
   ================================================================= */
.container {
  width: 100%;
  margin-right: auto;
  margin-left: auto;
  padding-right: 1rem;
  padding-left: 1rem;
}

@media (min-width: 640px) {
  .container {
    max-width: 640px;
  }
}

@media (min-width: 768px) {
  .container {
    max-width: 768px;
  }
}

@media (min-width: 1024px) {
  .container {
    max-width: 1024px;
  }
}

@media (min-width: 1280px) {
  .container {
    max-width: 1280px;
  }
}

@media (min-width: 1536px) {
  .container {
    max-width: 1536px;
  }
}

/* =================================================================
   SECTION STYLES
   ================================================================= */
.section {
  min-height: 90vh;
}

.section--intro {
  background-image: url(/img/background-01.jpg);
  background-color: #000f17;
  background-size: cover;
  background-position: 50%;
  color: #fff;
  text-align: center;
  animation: zoom 3s;
}

.bg-2 {
  height: 500px;
  min-height: auto;
  background: url(/img/background-02.jpg) 50% no-repeat;
  background-size: cover;
}

/* Dynamic height for Technology section to accommodate variable content */
#technology.bg-2 {
  height: auto;
  min-height: 500px;
  padding: 4rem 0;
}

/* Optimized height for Intro section - sufficient for button centering without excessive height */
#particles-js.section--intro {
  min-height: 80vh;
  max-height: 90vh;
  height: auto;
  padding: 4rem 0 6.25rem 0;
}

/* Responsive button styles for intro section */
.btn-responsive {
  width: 96px;
  height: 96px;
}

@media (max-width: 768px) {
  .btn-responsive {
    width: 80px;
    height: 80px;
    font-size: 0.75rem;
  }
}

@media (max-width: 480px) {
  .btn-responsive {
    width: 72px;
    height: 72px;
    font-size: 0.7rem;
  }
}

.section__arrow {
  top: -11px;
  left: 50%;
  transform: translateX(-50%);
  position: absolute;
}

/* =================================================================
   HEADER DECORATIONS
   ================================================================= */
.header--decorated {
  position: relative;
}

.header--decorated:after,
.header--decorated:before {
  position: absolute;
  background-image: url('/img/decoration-01.svg');
  content: '';
  margin-top: .75rem;
  width: 44px;
  height: 38px;
  right: 100%;
}

.header--decorated:after {
  left: 100%;
  transform: rotate(180deg);
}

/* =================================================================
   INTERACTIVE ELEMENTS
   ================================================================= */
details summary::marker {
  cursor: pointer;
  display: none;
}

details > summary {
  display: flex;
  padding: 1rem;
  background-size: 12px 12px;
  background-repeat: no-repeat;
  background-position: calc(100% - 32px) 50%;
  background-image: url(/icons/toggle.svg);
}

details[open] > summary:after {
  transform: scaleY(-1);
}

.summary__content {
  padding: 2rem;
}

/* Ensure text formatting for services content */
.summary__content.text-readable {
  text-align: justify !important;
  text-justify: inter-word !important;
  hyphens: auto !important;
  max-width: none !important;
  margin: 0 !important;
  word-spacing: 0.1em !important;
  letter-spacing: 0.01em !important;
}

/* =================================================================
   ICON COMPONENTS
   ================================================================= */
.icon-checked {
  display: flex;
  align-items: center;
  margin-right: 0.75rem;
  flex-shrink: 0;
}

.icon-checked:before {
  content: '';
  background-image: url("data:image/svg+xml,%3Csvg version='1.1' xmlns='http://www.w3.org/2000/svg' width='17' height='16' viewBox='0 0 34 32'%3E%3Cpath fill='none' stroke='%23016699' stroke-linejoin='round' stroke-linecap='round' stroke-miterlimit='4' stroke-width='2.4050' d='M30.886 12.153c0.327 1.15 0.515 2.471 0.515 3.836 0 0.004 0 0.008 0 0.011v-0.001c0.002 0.091 0.003 0.198 0.003 0.305 0 8.34-6.761 15.101-15.101 15.101s-15.101-6.761-15.101-15.101c0-8.34 6.761-15.101 15.101-15.101 0 0 0 0 0 0v0c0.011-0 0.024-0 0.037-0 2.916 0 5.64 0.818 7.957 2.238l-0.067-0.038'%3E%3C/path%3E%3Cpath fill='none' stroke='%23016699' stroke-linejoin='round' stroke-linecap='round' stroke-miterlimit='4' stroke-width='2.4050' d='M8.916 11.756l7.385 9.103 16.131-18.41'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  width: 24px;
  height: 17px;
}

/* Green checkmark for specialized services */
.icon-checked-green {
  display: flex;
}

.icon-checked-green:before {
  content: '';
  background-image: url("data:image/svg+xml,%3Csvg version='1.1' xmlns='http://www.w3.org/2000/svg' width='17' height='16' viewBox='0 0 34 32'%3E%3Cpath fill='none' stroke='%230F9D58' stroke-linejoin='round' stroke-linecap='round' stroke-miterlimit='4' stroke-width='2.4050' d='M30.886 12.153c0.327 1.15 0.515 2.471 0.515 3.836 0 0.004 0 0.008 0 0.011v-0.001c0.002 0.091 0.003 0.198 0.003 0.305 0 8.34-6.761 15.101-15.101 15.101s-15.101-6.761-15.101-15.101c0-8.34 6.761-15.101 15.101-15.101 0 0 0 0 0 0v0c0.011-0 0.024-0 0.037-0 2.916 0 5.64 0.818 7.957 2.238l-0.067-0.038'%3E%3C/path%3E%3Cpath fill='none' stroke='%230F9D58' stroke-linejoin='round' stroke-linecap='round' stroke-miterlimit='4' stroke-width='2.4050' d='M8.916 11.756l7.385 9.103 16.131-18.41'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  width: 24px;
  height: 17px;
  margin-right: 0.75rem;
  flex-shrink: 0;
}

/* =================================================================
   MODAL COMPONENTS
   ================================================================= */
.modal {
  transition: all .3s ease;
  background: rgba(0,0,0,.5);
  backdrop-filter: blur(2px);
  position: fixed;
  display: flex;
  inset: 0;
  align-items: center;
  justify-content: center;
  pointer-events: all;
  opacity: 1;
  z-index: 12;
  color: #000f17;
}

.modal__content {
  z-index: 4;
  border-radius: 2px;
  box-shadow: 0 8px 17px 0 rgba(0,0,0,.2);
  background: #fff;
  position: relative;
  max-height: 90vh;
  overflow: auto;
  margin: 0 16px;
  padding: 16px;
}

.modal__content label {
  display: flex;
  flex: 0 1 auto;
  width: 50%;
  color: #B1B3B6;
  margin: auto -4px 1rem;
}

.modal__content input,
.modal__content textarea {
  border-radius: 0.25rem;
  border: 1px solid #B1B3B6;
}

/* =================================================================
   VISUAL EFFECTS
   ================================================================= */
.cycle {
  pointer-events: none;
  width: 25vh;
  height: 25vh;
  background: rgba(0, 0, 0, .5);
  border-radius: 9999px;
  box-shadow:
    0 0 0 0 rgba(0, 0, 0, .25),  
    0 0 0 10vh rgba(0, 0, 0, .2), 
    0 0 0 20vh rgba(0, 0, 0, .15),
    0 0 0 30vh rgba(0, 0, 0, .1), 
    0 0 0 40vh rgba(0, 0, 0, .075),
    0 0 0 50vh rgba(0, 0, 0, .05),
    0 0 0 50vh rgba(0, 0, 0, .025);
  transform: translateY(-50%);
  opacity: .3;
  position: absolute;
  margin: auto;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1;
}

/* =================================================================
   TAILWIND UTILITY CLASSES
   ================================================================= */
.absolute { position: absolute; }
.relative { position: relative; }
.sticky { position: sticky; }
.top-0 { top: 0px; }
.right-0 { right: 0px; }
.m-6 { margin: 1.5rem; }
.m-auto { margin: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mt-1 { margin-top: 0.25rem; }
.mt-12 { margin-top: 3rem; }
.mt-32 { margin-top: 8rem; }
.mr-2 { margin-right: 0.5rem; }
.mr-3 { margin-right: 0.75rem; }
.mr-auto { margin-right: auto; }
.mb-0 { margin-bottom: 0px; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-16 { margin-bottom: 4rem; }
.-mb-12 { margin-bottom: -3rem; }
.ml-2 { margin-left: 0.5rem; }
.ml-4 { margin-left: 1rem; }
.block { display: block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.table { display: table; }
.hidden { display: none; }
.h-3 { height: 0.75rem; }
.h-8 { height: 2rem; }
.h-20 { height: 5rem; }
.h-24 { height: 6rem; }
.min-h-screen { min-height: 100vh; }
.w-3 { width: 0.75rem; }
.w-8 { width: 2rem; }
.w-20 { width: 5rem; }
.w-24 { width: 6rem; }
.w-36 { width: 9rem; }
.w-1\/2 { width: 50%; }
.w-full { width: 100%; }
.max-w-screen-md { max-width: 768px; }
.max-w-screen-lg { max-width: 1024px; }
.max-w-screen-xl { max-width: 1280px; }
.flex-1 { flex: 1 1 0%; }
.flex-auto { flex: 1 1 auto; }
.flex-shrink-0 { flex-shrink: 0; }
.transform { transform: translateX(0) translateY(0) rotate(0) skewX(0) skewY(0) scaleX(1) scaleY(1); }
.hover\:-translate-y-1:hover { transform: translateY(-0.25rem); }
.cursor-pointer { cursor: pointer; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.justify-end { justify-content: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-4 { gap: 1rem; }
.gap-x-4 { column-gap: 1rem; }
.overflow-hidden { overflow: hidden; }
.rounded { border-radius: 0.25rem; }
.rounded-md { border-radius: 0.375rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-full { border-radius: 9999px; }
.rounded-t-lg { border-top-left-radius: 0.5rem; border-top-right-radius: 0.5rem; }
.border-0 { border-width: 0px; }
.border { border-width: 1px; }
.border-t-4 { border-top-width: 4px; }
.border-white { border-color: #fff; }
.border-neutral-200 { border-color: #e5e5e5; }
.border-neutral-300 { border-color: #d4d4d4; }
.focus\:border-primary-500:focus { border-color: rgba(0, 87, 143, 1); }
.bg-white { background-color: #fff; }
.bg-primary-500 { background-color: var(--color-primary-500); }
.bg-primary-600 { background-color: var(--color-primary-600); }
.bg-primary-700 { background-color: var(--color-primary-700); }
.bg-accent-500 { background-color: var(--color-accent-500); }
.bg-accent-600 { background-color: var(--color-accent-600); }
.bg-accent-700 { background-color: var(--color-accent-700); }
.bg-neutral-50 { background-color: var(--color-neutral-50); }
.bg-neutral-100 { background-color: var(--color-neutral-100); }
.bg-neutral-200 { background-color: var(--color-neutral-200); }
.bg-neutral-700 { background-color: var(--color-neutral-700); }
.bg-neutral-800 { background-color: var(--color-neutral-800); }
.bg-success-500 { background-color: var(--color-success-500); }
.hover\:bg-primary-600:hover { background-color: var(--color-primary-600); }
.hover\:bg-primary-700:hover { background-color: var(--color-primary-700); }
.hover\:bg-accent-600:hover { background-color: var(--color-accent-600); }
.hover\:bg-neutral-100:hover { background-color: var(--color-neutral-100); }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-8 { padding: 2rem; }
.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }
.px-12 { padding-left: 3rem; padding-right: 3rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.pt-16 { padding-top: 4rem; }
.pb-8 { padding-bottom: 2rem; }
.pb-16 { padding-bottom: 4rem; }
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
/* Font-weight utilities removed - using CSS variables instead */
.text-white { color: #fff; }
.text-primary-600 { color: var(--color-primary-600); }
.text-neutral-600 { color: var(--color-neutral-600); }
.text-neutral-700 { color: var(--color-neutral-700); }
.text-neutral-800 { color: var(--color-neutral-800); }
.hover\:text-primary-600:hover { color: var(--color-primary-600); }
.opacity-90 { opacity: 0.9; }
.shadow-sm { box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05); }
.shadow-xl { box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04); }
.shadow-2xl { box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25); }
.hover\:shadow-md:hover { box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06); }
.hover\:shadow-lg:hover { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05); }
.hover\:shadow-xl:hover { box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04); }
.focus\:ring-2:focus { box-shadow: 0 0 0 2px rgba(0, 87, 143, 0.5); }
.focus\:ring-primary-500:focus { box-shadow: 0 0 0 2px rgba(0, 87, 143, 0.5); }
.filter { filter: var(--tw-filter); }
.invert { filter: invert(1); }
.sepia { filter: sepia(1); }
.transition-all { transition-property: all; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.transition { transition-property: background-color, border-color, color, fill, stroke, opacity, box-shadow, transform; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.transition-colors { transition-property: background-color, border-color, color, fill, stroke; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.transition-shadow { transition-property: box-shadow; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.duration-200 { transition-duration: 200ms; }
.duration-300 { transition-duration: 300ms; }

/* =================================================================
   RESPONSIVE DESIGN
   ================================================================= */
@media (min-width: 640px) {
  .sm\:text-3xl {
    font-size: 1.875rem;
    line-height: 2.25rem;
  }
}

@media (min-width: 768px) {
  .md\:block { display: block; }
  .md\:flex { display: flex; }
  .md\:w-1\/2 { width: 50%; }
  .md\:flex-row { flex-direction: row; }
  .md\:pr-8 { padding-right: 2rem; }
  .md\:pl-8 { padding-left: 2rem; }
}

@media (min-width: 1024px) {
  .lg\:block { display: block; }
  .lg\:flex { display: flex; }
  .lg\:w-1\/2 { width: 50%; }
}

@media (min-width: 1280px) {
  .xl\:w-1\/3 { width: 33.333333%; }
}

/* =================================================================
   ANIMATIONS
   ================================================================= */
@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes ping {
  75%, 100% {
    transform: scale(2);
    opacity: 0;
  }
}

@keyframes pulse {
  50% { opacity: .5; }
}

@keyframes bounce {
  0%, 100% {
    transform: translateY(-25%);
    animation-timing-function: cubic-bezier(0.8,0,1,1);
  }
  50% {
    transform: none;
    animation-timing-function: cubic-bezier(0,0,0.2,1);
  }
}

/* Modern shadow classes (2025 trends) */
.shadow-elevation-low { box-shadow: var(--shadow-elevation-low); }
.shadow-elevation-medium { box-shadow: var(--shadow-elevation-medium); }
.shadow-elevation-high { box-shadow: var(--shadow-elevation-high); }
.shadow-primary { box-shadow: var(--shadow-primary); }
.shadow-accent { box-shadow: var(--shadow-accent); }
.shadow-success { box-shadow: var(--shadow-success); }
.hover\:shadow-primary:hover { box-shadow: var(--shadow-primary-hover); }
.hover\:shadow-accent:hover { box-shadow: var(--shadow-accent-hover); }
.hover\:shadow-success:hover { box-shadow: var(--shadow-success-hover); }