:root {
  /* Alpine Color Palette */
  --ice-white: #FAFBFC;
  --snow: #F5F7FA;
  --glacier-blue: #E8F1F8;
  --alpine-blue: #4A90B8;
  --deep-blue: #2C5F7F;
  --mountain-gray: #4A5568;
  --slate: #2D3748;
  --charcoal: #1A202C;
  
  /* Spring Accents */
  --spring-green: #A8D5BA;
  --meadow: #6B9080;
  
  /* Typography */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  
  /* Layout */
  --max-width: 1200px;
  --max-width-narrow: 800px;
  --nav-height: 80px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  line-height: 1.7;
  color: var(--slate);
  background-color: var(--ice-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  color: var(--charcoal);
  margin-bottom: var(--space-sm);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
  font-size: 1.25rem;
  font-family: var(--font-body);
  font-weight: 600;
}

p {
  margin-bottom: var(--space-sm);
  max-width: 65ch;
}

a {
  color: var(--alpine-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--deep-blue);
}

/* Layout */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.container-narrow {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

section {
  padding: var(--space-xl) 0;
}

/* Navigation */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background-color: rgba(250, 251, 252, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--glacier-blue);
  z-index: 1000;
  transition: background-color 0.3s ease;
}

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

.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--charcoal);
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  gap: var(--space-md);
  list-style: none;
}

.nav-links a {
  color: var(--mountain-gray);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
  position: relative;
}

.nav-links a:hover {
  color: var(--alpine-blue);
}

.nav-links a.active {
  color: var(--charcoal);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--spring-green);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--charcoal);
  margin: 5px 0;
  transition: all 0.3s ease;
}

/* Hero Section */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  background: url('images/SpringDigital_homepage.jpg') center center / cover no-repeat;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><path d="M0 0 L50 50 L0 100 Z" fill="%23E8F1F8" opacity="0.3"/></svg>') repeat;
  opacity: 0.1;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  margin-bottom: var(--space-md);
  animation: fadeInUp 0.8s ease-out;
}

.hero p {
  font-size: 1.125rem;
  color: var(--mountain-gray);
  margin-bottom: var(--space-md);
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 4px;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  text-align: center;
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

.btn-primary {
  background-color: var(--alpine-blue);
  color: white;
}

.btn-primary:hover {
  background-color: var(--deep-blue);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(74, 144, 184, 0.3);
}

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

.btn-secondary:hover {
  background-color: var(--alpine-blue);
  color: white;
}

/* Service Cards */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.service-card {
  background-color: white;
  padding: var(--space-md);
  border-radius: 8px;
  border: 1px solid var(--glacier-blue);
  transition: all 0.3s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(74, 144, 184, 0.15);
  border-color: var(--alpine-blue);
}

.service-card h3 {
  color: var(--alpine-blue);
  margin-bottom: var(--space-sm);
}

.service-card ul {
  list-style: none;
  margin-top: var(--space-sm);
}

.service-card li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--mountain-gray);
}

.service-card li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--spring-green);
  font-weight: 600;
}

/* Portfolio/Work Items */
.work-inner {
  display: grid;
  grid-template-columns: 2fr 1fr;
  min-height: 100%;
}

.work-text {
  display: flex;
  flex-direction: column;
}

.work-thumbnail {
  background-color: var(--glacier-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  width: 600px;
  height: 600px;
  flex-shrink: 0;
}

.work-thumbnail img {
  width: 600px;
  height: 600px;
  object-fit: contain;
  display: block;
}

.work-grid {
  display: grid;
  gap: var(--space-xl);
  margin-top: var(--space-lg);
}

.work-item {
  background-color: white;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--glacier-blue);
  transition: all 0.3s ease;
}

.work-item:hover {
  box-shadow: 0 8px 24px rgba(74, 144, 184, 0.15);
}

.work-header {
  padding: var(--space-md);
  border-bottom: 1px solid var(--glacier-blue);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.work-title h3 {
  margin-bottom: 0.25rem;
}

.work-meta {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  font-size: 0.875rem;
  color: var(--mountain-gray);
}

/* Services Page Section Layout */
.service-section-inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-xl);
  align-items: start;
}

.service-section-text {
  min-width: 0;
}

.service-section-image {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-md));
  order: -1;
}

.service-section-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
}

.service-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.875rem;
  background-color: var(--glacier-blue);
  color: var(--alpine-blue);
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 600;
}

.work-content {
  padding: var(--space-md);
}

.work-section {
  margin-bottom: var(--space-md);
}

.work-section h4 {
  color: var(--alpine-blue);
  margin-bottom: var(--space-xs);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.expertise-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: var(--space-sm);
}

.pill {
  padding: 0.375rem 0.875rem;
  background-color: var(--snow);
  color: var(--mountain-gray);
  border-radius: 20px;
  font-size: 0.875rem;
  border: 1px solid var(--glacier-blue);
}

.results-box {
  background-color: var(--glacier-blue);
  padding: var(--space-md);
  border-radius: 8px;
  margin-top: var(--space-md);
  border-left: 4px solid var(--spring-green);
}

.results-box h4 {
  color: var(--deep-blue);
}

/* Filter Buttons */
.filter-buttons {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.625rem 1.25rem;
  background-color: var(--snow);
  color: var(--mountain-gray);
  border: 1px solid var(--glacier-blue);
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.filter-btn:hover {
  background-color: var(--glacier-blue);
  border-color: var(--alpine-blue);
}

.filter-btn.active {
  background-color: var(--alpine-blue);
  color: white;
  border-color: var(--alpine-blue);
}

/* Contact Form */
.contact-form {
  max-width: 600px;
  margin-top: var(--space-lg);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 600;
  color: var(--charcoal);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.875rem;
  border: 1px solid var(--glacier-blue);
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

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

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

/* Footer */
footer {
  background-color: var(--charcoal);
  color: var(--snow);
  padding: var(--space-lg) 0 var(--space-md);
  margin-top: var(--space-xl);
}

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

.footer-section h4 {
  color: white;
  margin-bottom: var(--space-sm);
}

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

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: var(--glacier-blue);
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid rgba(232, 241, 248, 0.1);
  padding-top: var(--space-md);
  text-align: center;
  color: var(--glacier-blue);
  font-size: 0.875rem;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Mobile Responsive */
@media (max-width: 768px) {
  :root {
    --space-lg: 3rem;
    --space-xl: 4rem;
  }
  
  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background-color: white;
    flex-direction: column;
    padding: var(--space-md);
    gap: var(--space-sm);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    transform: translateY(-100%);
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
  }
  
  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  .mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
  
  .hero {
    min-height: 80vh;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .service-section-inner {
    grid-template-columns: 1fr;
  }

  .service-section-image {
    position: static;
  }

  .work-inner {
    grid-template-columns: 1fr;
  }

  .work-thumbnail {
    min-height: 120px;
  }

  .work-header {
    flex-direction: column;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
  
  .container,
  .container-narrow {
    padding: 0 var(--space-sm);
  }
  
  section {
    padding: var(--space-lg) 0;
  }
}

/* Print Styles */
@media print {
  nav,
  footer,
  .btn,
  .filter-buttons {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
}