/* DH Marketing Digital - Premium Institutional Styling */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  /* Colors */
  --bg-primary: #080b11;
  --bg-secondary: #0f131d;
  --bg-tertiary: #171d2b;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  /* Accent Colors (Neon Indigo/Cyan/Magenta Gradient theme) */
  --accent-primary: #6366f1; /* Indigo */
  --accent-secondary: #06b6d4; /* Cyan */
  --accent-tertiary: #d946ef; /* Pink/Magenta */
  
  --accent-gradient: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 50%, var(--accent-tertiary) 100%);
  --text-gradient: linear-gradient(135deg, #ffffff 0%, #cbd5e1 50%, #94a3b8 100%);
  --neon-glow: 0 0 20px rgba(99, 102, 241, 0.15);
  
  /* Glassmorphism */
  --glass-bg: rgba(15, 19, 29, 0.7);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-hover: rgba(255, 255, 255, 0.15);
  --glass-blur: blur(16px);

  /* Fonts */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Layout */
  --container-max-width: 1200px;
  --header-height: 80px;
  --border-radius-sm: 8px;
  --border-radius-md: 16px;
  --border-radius-lg: 24px;
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border: 2px solid var(--bg-primary);
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-primary);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: #ffffff;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  margin-bottom: 0.75rem;
}

p {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 300;
}

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

img, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

/* Utilities */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.gradient-text {
  background: linear-gradient(135deg, #ffffff 10%, #a5b4fc 50%, #6366f1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.accent-text-gradient {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.visually-hidden {
  position: absolute;
  clip-path: inset(50%);
  overflow: hidden;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  white-space: nowrap;
}

/* Decorative Background Elements */
.bg-glow-container {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.bg-glow-1 {
  position: absolute;
  top: -10%;
  right: -5%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.12) 0%, rgba(0, 0, 0, 0) 70%);
  filter: blur(80px);
}

.bg-glow-2 {
  position: absolute;
  top: 40%;
  left: -10%;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.08) 0%, rgba(0, 0, 0, 0) 70%);
  filter: blur(100px);
}

.bg-glow-3 {
  position: absolute;
  bottom: 10%;
  right: -10%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, rgba(217, 70, 239, 0.08) 0%, rgba(0, 0, 0, 0) 70%);
  filter: blur(90px);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  border-radius: var(--border-radius-sm);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.25);
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, rgba(255,255,255,0) 100%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(99, 102, 241, 0.4), 0 0 15px rgba(6, 182, 212, 0.2);
}

.btn-primary:hover::after {
  opacity: 1;
}

.btn-secondary {
  background: var(--bg-secondary);
  color: #ffffff;
  border: 1px solid var(--glass-border);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn-secondary:hover {
  background: var(--bg-tertiary);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

.btn-icon {
  margin-left: 0.5rem;
  transition: transform var(--transition-fast);
}

.btn:hover .btn-icon {
  transform: translateX(4px);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 100;
  background: rgba(8, 11, 17, 0.7);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  transition: all var(--transition-normal);
}

.header.scrolled {
  height: 70px;
  background: rgba(8, 11, 17, 0.9);
  border-bottom-color: rgba(99, 102, 241, 0.15);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--accent-gradient);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-weight: 900;
  font-size: 1.2rem;
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.4);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  transition: width var(--transition-normal);
}

.nav-link:hover {
  color: #ffffff;
}

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

.nav-link.active {
  color: #ffffff;
}

/* Mobile Menu Toggle */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 101;
}

.mobile-nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #ffffff;
  margin-bottom: 5px;
  transition: all var(--transition-normal);
}

.mobile-nav-toggle span:last-child {
  margin-bottom: 0;
}

/* Hero Section */
.hero {
  padding: calc(var(--header-height) + 4rem) 0 6rem;
  position: relative;
  display: flex;
  align-items: center;
  min-height: 90vh;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  max-width: 680px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #a5b4fc;
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.badge-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-secondary);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-secondary);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.9); opacity: 0.6; }
  50% { transform: scale(1.2); opacity: 1; box-shadow: 0 0 12px var(--accent-secondary); }
  100% { transform: scale(0.9); opacity: 0.6; }
}

.hero-title {
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  margin-bottom: 2.5rem;
  max-width: 580px;
}

.hero-cta-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-glow-sphere {
  position: absolute;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.25) 0%, rgba(217, 70, 239, 0.05) 50%, rgba(0,0,0,0) 70%);
  border-radius: 50%;
  filter: blur(20px);
  animation: float 6s ease-in-out infinite;
}

.hero-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  padding: 2.5rem;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 380px;
  animation: float 8s ease-in-out infinite alternate;
}

@keyframes float {
  0% { transform: translateY(0px) rotate(0deg); }
  100% { transform: translateY(-15px) rotate(2deg); }
}

.hero-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--glass-border);
  padding-bottom: 1rem;
}

.hero-card-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--accent-secondary);
}

.metric-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.metric-item {
  display: flex;
  flex-direction: column;
}

.metric-val {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.metric-lbl {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.25rem;
}

/* Sections General */
.section {
  padding: 8rem 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 5rem;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-top: 1rem;
}

/* Services Section */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.service-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-md);
  padding: 2.5rem;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  height: 100%;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: var(--glass-border-hover);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3), var(--neon-glow);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  width: 48px;
  height: 48px;
  background: rgba(99, 102, 241, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-primary);
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
  transition: all var(--transition-normal);
}

.service-card:hover .service-icon {
  background: var(--accent-gradient);
  color: #ffffff;
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.3);
}

.service-card h3 {
  margin-bottom: 1rem;
}

.service-card p {
  font-size: 0.95rem;
}

/* About Section */
.about {
  background: rgba(15, 19, 29, 0.4);
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 5rem;
  align-items: center;
}

.about-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.about-box {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  padding: 3rem;
  position: relative;
  z-index: 2;
  width: 100%;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2.5rem;
}

.about-feature-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.about-feature-icon {
  color: var(--accent-secondary);
  font-size: 1.25rem;
  margin-top: 0.1rem;
}

.about-feature-title {
  font-family: var(--font-heading);
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 0.25rem;
}

.about-feature-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 4rem;
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-top: 2rem;
}

.contact-item {
  display: flex;
  gap: 1.25rem;
}

.contact-item-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-secondary);
  font-size: 1.25rem;
  flex-shrink: 0;
  transition: all var(--transition-normal);
}

.contact-item:hover .contact-item-icon {
  border-color: var(--accent-secondary);
  color: #ffffff;
  background: rgba(6, 182, 212, 0.1);
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.2);
}

.contact-item-details h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.contact-item-details p {
  font-size: 0.9rem;
}

.contact-item-details a:hover {
  color: var(--accent-secondary);
}

.contact-form-container {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  padding: 3rem;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  background: rgba(8, 11, 17, 0.5);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-sm);
  padding: 0.85rem 1.25rem;
  color: #ffffff;
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.15);
  background: rgba(8, 11, 17, 0.8);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.form-feedback {
  margin-top: 1rem;
  font-size: 0.9rem;
  display: none;
  border-radius: var(--border-radius-sm);
  padding: 0.75rem 1rem;
}

.form-feedback.success {
  display: block;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: #34d399;
}

.form-feedback.error {
  display: block;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: #f87171;
}

/* Legal Pages Styling (Privacy Policy & Terms) */
.legal-content {
  padding: calc(var(--header-height) + 4rem) 0 8rem;
  max-width: 800px;
  margin: 0 auto;
}

.legal-header {
  border-bottom: 1px solid var(--glass-border);
  padding-bottom: 2rem;
  margin-bottom: 3rem;
}

.legal-body {
  color: var(--text-secondary);
}

.legal-body h2 {
  font-size: 1.5rem;
  margin: 2.5rem 0 1rem;
  color: #ffffff;
}

.legal-body p {
  margin-bottom: 1.5rem;
  font-size: 1rem;
  line-height: 1.7;
}

.legal-body ul, .legal-body ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
  color: var(--text-secondary);
}

.legal-body li {
  margin-bottom: 0.5rem;
}

.back-to-home {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-secondary);
  font-weight: 500;
  margin-bottom: 2rem;
}

.back-to-home:hover {
  color: #ffffff;
}

/* Footer */
.footer {
  background: #04060b;
  border-top: 1px solid var(--glass-border);
  padding: 5rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-brand p {
  margin-top: 1rem;
  max-width: 320px;
}

.footer-links h4,
.footer-contact h4 {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  font-weight: 600;
}

.footer-links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: #ffffff;
  padding-left: 4px;
}

.footer-contact p {
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

.footer-bottom {
  border-top: 1px solid var(--glass-border);
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.footer-legal-info {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer-copyright-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-copyright {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-legal-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.footer-legal-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-legal-links a:hover {
  color: #ffffff;
}

/* Animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive adjustments */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }
  
  .hero-content {
    max-width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  .hero-subtitle {
    margin-inline: auto;
  }
  
  .hero-cta-group {
    justify-content: center;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 70px;
  }
  
  .section {
    padding: 5rem 0;
  }
  
  .mobile-nav-toggle {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(8, 11, 17, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 4rem 2rem;
    gap: 2rem;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all 0.4s ease-in-out;
    border-top: 1px solid var(--glass-border);
  }
  
  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .footer-copyright-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }
  
  .footer-legal-links {
    flex-direction: column;
    gap: 0.75rem;
  }
}