/* ==========================================
   HOSPROPHETS PREMIUM CONSULTING CSS
   Sophisticated styling for luxury hospitality consulting
   ========================================== */

/* ==========================================
   CSS VARIABLES & THEME CONFIGURATION
   ========================================== */

:root {
  /* Primary Brand Colors - Premium Consulting Palette */
  --primary-navy: #1B365D;
  --primary-navy-dark: #0F1F3A;
  --primary-navy-light: #2C4A6F;
  --accent-gold: #D4AF37;
  --accent-gold-dark: #B8941F;
  --accent-gold-light: #F4D03F;
  
  /* Neutral Color Palette */
  --white: #FFFFFF;
  --off-white: #F8F9FA;
  --light-gray: #E9ECEF;
  --medium-gray: #6C757D;
  --dark-gray: #343A40;
  --charcoal: #212529;
  
  /* Premium Metallic Accents */
  --metallic-gold: linear-gradient(135deg, #D4AF37 0%, #F4D03F 50%, #D4AF37 100%);
  --metallic-silver: linear-gradient(135deg, #C0C0C0 0%, #E5E5E5 50%, #C0C0C0 100%);
  --metallic-bronze: linear-gradient(135deg, #CD7F32 0%, #E6A65D 50%, #CD7F32 100%);
  
  /* Typography Scale */
  --font-primary: 'Playfair Display', serif;
  --font-secondary: 'Inter', sans-serif;
  
  /* Spacing Scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-xxl: 4rem;
  --space-xxxl: 6rem;
  
  /* Layout Variables */
  --container-max-width: 1200px;
  --navbar-height: 80px;
  --border-radius: 8px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  
  /* Animation Variables */
  --transition-fast: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-medium: 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-slow: 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  
  /* Shadow Variables */
  --shadow-light: 0 2px 20px rgba(27, 54, 93, 0.1);
  --shadow-medium: 0 8px 40px rgba(27, 54, 93, 0.15);
  --shadow-heavy: 0 16px 60px rgba(27, 54, 93, 0.2);
  --shadow-gold: 0 4px 30px rgba(212, 175, 55, 0.3);
}

/* ==========================================
   GLOBAL STYLES & RESETS
   ========================================== */

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

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

body {
  font-family: var(--font-secondary);
  line-height: 1.6;
  color: var(--primary-navy);
  background-color: var(--white);
  overflow-x: hidden;
}

/* Premium Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 500;
  line-height: 1.2;
  margin-bottom: var(--space-sm);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 300;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 400;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 400;
}

p {
  margin-bottom: var(--space-sm);
  color: var(--medium-gray);
  font-size: 1.1rem;
}

/* Premium Links */
a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-fast);
}

a:hover {
  color: var(--accent-gold);
}

/* Premium Container */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Premium Section Styling */
section {
  padding: var(--space-xxxl) 0;
  position: relative;
}

/* ==========================================
   PREMIUM NAVIGATION
   ========================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(212, 175, 55, 0.2);
  z-index: 1000;
  transition: var(--transition-fast);
  height: var(--navbar-height);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-light);
}

.nav-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.logo {
  width: 50px;
  height: 50px;
  object-fit: contain;
  border-radius: var(--border-radius);
}

.brand-text {
  font-family: var(--font-primary);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-navy);
  letter-spacing: -0.01em;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-link {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--primary-navy);
  position: relative;
  padding: var(--space-xs) 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--metallic-gold);
  transition: var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.cta-button {
  background: var(--metallic-gold);
  color: var(--white);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--border-radius);
  font-weight: 600;
  box-shadow: var(--shadow-gold);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(212, 175, 55, 0.4);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.bar {
  width: 25px;
  height: 3px;
  background: var(--primary-navy);
  margin: 3px 0;
  transition: var(--transition-fast);
}

/* ==========================================
   PREMIUM HERO SECTION
   ========================================== */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: linear-gradient(135deg, var(--primary-navy) 0%, var(--primary-navy-dark) 100%);
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><radialGradient id="a" cx="50%" cy="50%" r="50%"><stop offset="0%" stop-color="%23D4AF37" stop-opacity="0.1"/><stop offset="100%" stop-color="%23D4AF37" stop-opacity="0"/></radialGradient></defs><rect width="100%" height="100%" fill="%231B365D"/><circle cx="200" cy="200" r="100" fill="url(%23a)"/><circle cx="800" cy="300" r="150" fill="url(%23a)"/><circle cx="400" cy="700" r="120" fill="url(%23a)"/></svg>') center/cover;
  opacity: 0.3;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, rgba(27, 54, 93, 0.9) 0%, rgba(27, 54, 93, 0.7) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  color: var(--white);
}

.hero-title {
  margin-bottom: var(--space-lg);
  font-weight: 300;
  line-height: 1.1;
}

.title-line {
  display: block;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s ease forwards;
}

.title-line:nth-child(2) {
  animation-delay: 0.3s;
}

.hero-subtitle {
  font-size: 1.3rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-xl);
  max-width: 600px;
  opacity: 0;
  animation: fadeInUp 1s ease 0.6s forwards;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-xxxl);
  opacity: 0;
  animation: fadeInUp 1s ease 0.9s forwards;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--metallic-gold);
  color: var(--white);
  box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(212, 175, 55, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
  opacity: 0;
  animation: fadeInUp 1s ease 1.2s forwards;
}

.stat-item {
  text-align: center;
  padding: var(--space-lg);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius-lg);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-number {
  font-family: var(--font-primary);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-gold);
  margin-bottom: var(--space-xs);
}

.stat-label {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.scroll-indicator {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  animation: fadeInUp 1s ease 1.5s forwards;
}

.scroll-line {
  width: 2px;
  height: 60px;
  background: linear-gradient(to bottom, var(--accent-gold), transparent);
  position: relative;
}

.scroll-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 20px;
  background: var(--accent-gold);
  animation: scrollPulse 2s ease-in-out infinite;
}

/* ==========================================
   SECTION HEADERS & TYPOGRAPHY
   ========================================== */

.section-header {
  text-align: center;
  margin-bottom: var(--space-xxxl);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.section-tag {
  display: inline-block;
  background: rgba(212, 175, 55, 0.1);
  color: var(--accent-gold);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--border-radius);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
}

.section-title {
  color: var(--primary-navy);
  margin-bottom: var(--space-md);
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--medium-gray);
  margin-bottom: 0;
}

/* ==========================================
   ABOUT SECTION
   ========================================== */

.about {
  background: var(--off-white);
  position: relative;
}

.about::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--accent-gold) 0%, transparent 70%);
  opacity: 0.1;
  border-radius: 50%;
}

.about-main {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xxxl);
  align-items: center;
}

.about-text h3 {
  color: var(--primary-navy);
  margin-bottom: var(--space-lg);
}

.about-credentials {
  margin-top: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.credential-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
}

.credential-item i {
  color: var(--accent-gold);
  font-size: 1.2rem;
  width: 20px;
}

.visual-card {
  background: var(--white);
  padding: var(--space-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-medium);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.visual-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--metallic-gold);
}

.card-icon {
  width: 80px;
  height: 80px;
  background: rgba(212, 175, 55, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
}

.card-icon i {
  font-size: 2rem;
  color: var(--accent-gold);
}

/* ==========================================
   SERVICES SECTION
   ========================================== */

.services {
  background: var(--white);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-xl);
}

.service-card {
  background: var(--white);
  padding: var(--space-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-light);
  transition: var(--transition-medium);
  position: relative;
  overflow: hidden;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-heavy);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--metallic-gold);
  transform: scaleX(0);
  transition: var(--transition-medium);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 70px;
  height: 70px;
  background: var(--metallic-gold);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
}

.service-icon i {
  font-size: 1.8rem;
  color: var(--white);
}

.service-card h3 {
  color: var(--primary-navy);
  margin-bottom: var(--space-md);
}

.service-details {
  list-style: none;
  margin: var(--space-lg) 0;
}

.service-details li {
  padding: var(--space-xs) 0;
  color: var(--medium-gray);
  position: relative;
  padding-left: var(--space-md);
}

.service-details li::before {
  content: '•';
  color: var(--accent-gold);
  position: absolute;
  left: 0;
}

.service-link {
  color: var(--accent-gold);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

.service-link:hover {
  gap: var(--space-sm);
}

/* ==========================================
   EXPERTISE SECTION
   ========================================== */

.expertise {
  background: var(--primary-navy);
  color: var(--white);
}

.expertise .section-title,
.expertise .section-subtitle {
  color: var(--white);
}

.expertise-categories {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-xxxl);
  flex-wrap: wrap;
}

.category-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition-fast);
  min-width: 120px;
  border: 2px solid transparent;
}

.category-item:hover,
.category-item.active {
  background: rgba(212, 175, 55, 0.2);
  border-color: var(--accent-gold);
}

.category-item i {
  font-size: 1.5rem;
  color: var(--accent-gold);
  margin-bottom: var(--space-xs);
}

.category-item span {
  font-size: 0.9rem;
  font-weight: 500;
}

.expertise-panel {
  display: none;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.expertise-panel.active {
  display: block;
}

.expertise-panel h3 {
  color: var(--accent-gold);
  margin-bottom: var(--space-lg);
}

.expertise-metrics {
  display: flex;
  justify-content: center;
  gap: var(--space-xxxl);
  margin-top: var(--space-xl);
}

.metric {
  text-align: center;
}

.metric-value {
  display: block;
  font-family: var(--font-primary);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-gold);
  margin-bottom: var(--space-xs);
}

.metric-label {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ==========================================
   CLIENTS SECTION
   ========================================== */

.clients {
  background: var(--off-white);
}

.clients-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.client-category {
  background: var(--white);
  padding: var(--space-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-light);
  text-align: center;
  transition: var(--transition-fast);
}

.client-category:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.client-category h3 {
  color: var(--primary-navy);
  margin-bottom: var(--space-md);
}

/* ==========================================
   INSIGHTS SECTION
   ========================================== */

.insights {
  background: var(--white);
}

.insights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-xl);
}

.insight-card {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-light);
  transition: var(--transition-medium);
}

.insight-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.insight-image {
  height: 200px;
  background: var(--metallic-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.insight-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
  animation: shimmer 2s infinite;
}

.insight-image i {
  font-size: 3rem;
  color: var(--white);
  z-index: 1;
}

.insight-content {
  padding: var(--space-xl);
}

.insight-category {
  display: inline-block;
  background: rgba(212, 175, 55, 0.1);
  color: var(--accent-gold);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--border-radius);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
}

.insight-card h3 {
  color: var(--primary-navy);
  margin-bottom: var(--space-md);
}

.insight-link {
  color: var(--accent-gold);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  margin-top: var(--space-md);
}

.insight-link:hover {
  gap: var(--space-sm);
}

/* ==========================================
   CONTACT SECTION
   ========================================== */

.contact {
  background: linear-gradient(135deg, var(--primary-navy) 0%, var(--primary-navy-dark) 100%);
  color: var(--white);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xxxl);
  align-items: start;
}

.contact .section-title,
.contact .section-subtitle {
  color: var(--white);
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.contact-method {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius);
  backdrop-filter: blur(10px);
}

.method-icon {
  width: 50px;
  height: 50px;
  background: var(--metallic-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.method-icon i {
  color: var(--white);
  font-size: 1.2rem;
}

.method-details h4 {
  color: var(--accent-gold);
  margin-bottom: var(--space-xs);
}

.method-details p {
  color: rgba(255, 255, 255, 0.9);
  margin: 0;
}

.contact-form-container {
  background: rgba(255, 255, 255, 0.95);
  padding: var(--space-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-heavy);
  backdrop-filter: blur(20px);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.form-group {
  position: relative;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--space-md);
  border: 2px solid var(--light-gray);
  border-radius: var(--border-radius);
  font-size: 1rem;
  transition: var(--transition-fast);
  background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.form-group label {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  color: var(--medium-gray);
  transition: var(--transition-fast);
  pointer-events: none;
  background: var(--white);
  padding: 0 var(--space-xs);
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group select:focus + label,
.form-group select:not([value=""]) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
  top: -10px;
  font-size: 0.85rem;
  color: var(--accent-gold);
}

.contact-form .btn-primary {
  width: 100%;
  justify-content: center;
}

/* ==========================================
   FOOTER
   ========================================== */

.footer {
  background: var(--charcoal);
  color: var(--white);
  padding: var(--space-xxxl) 0 var(--space-xl);
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.footer-main {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-xxxl);
}

.footer-logo {
  width: 60px;
  height: 60px;
  object-fit: contain;
  margin-bottom: var(--space-md);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.8);
  max-width: 400px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-xl);
}

.link-group h4 {
  color: var(--accent-gold);
  margin-bottom: var(--space-md);
  font-size: 1.1rem;
}

.link-group ul {
  list-style: none;
}

.link-group li {
  margin-bottom: var(--space-xs);
}

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

.link-group a:hover {
  color: var(--accent-gold);
}

.social-links {
  display: flex;
  gap: var(--space-md);
}

.social-links a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.social-links a:hover {
  background: var(--accent-gold);
  transform: translateY(-2px);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
}

.footer-legal {
  display: flex;
  gap: var(--space-md);
}

.footer-legal a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}

.footer-legal a:hover {
  color: var(--accent-gold);
}

/* ==========================================
   ANIMATIONS
   ========================================== */

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scrollPulse {
  0%, 100% {
    opacity: 1;
    transform: translateY(0);
  }
  50% {
    opacity: 0.5;
    transform: translateY(10px);
  }
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */

@media (max-width: 1024px) {
  .container {
    padding: 0 var(--space-md);
  }
  
  .about-main,
  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  
  .services-grid,
  .insights-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
}

@media (max-width: 768px) {
  :root {
    --space-xxxl: 4rem;
  }
  
  .nav-menu {
    position: fixed;
    left: -100%;
    top: var(--navbar-height);
    flex-direction: column;
    background: var(--white);
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
    padding: var(--space-lg) 0;
    gap: var(--space-lg);
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active .bar:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .nav-toggle.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  
  .expertise-categories {
    flex-direction: column;
    align-items: center;
  }
  
  .expertise-metrics {
    flex-direction: column;
    gap: var(--space-lg);
  }
  
  .footer-main {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-sm);
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.1rem;
  }
  
  .services-grid,
  .insights-grid {
    grid-template-columns: 1fr;
  }
  
  .services-grid,
  .insights-grid {
    gap: var(--space-lg);
  }
}