/* ==========================================================================
   HILT DIGITAL — DESIGN SYSTEM & STYLES (Precision Engineering)
   ========================================================================== */

:root {
  /* Colors - Base (Navy Scale) */
  --c-bg: #0D1B2A;
  --c-surface: #132336;
  --c-surface-hover: #1A2E45;
  --c-border: rgba(138, 160, 184, 0.15);

  /* Colors - Accents */
  --c-primary: #3ECFB2;
  /* Teal/Cyan-Green */
  --c-primary-glow: rgba(62, 207, 178, 0.4);
  --c-secondary: #F47C3C;
  /* Orange */
  --c-secondary-glow: rgba(244, 124, 60, 0.4);

  /* Colors - Text */
  --c-text-main: #FFFFFF;
  --c-text-muted: #8AA0B8;

  /* Typography */
  --font-display: 'Sora', system-ui, -apple-system, sans-serif;
  --font-body: 'DM Sans', system-ui, -apple-system, sans-serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  --space-xxl: 8rem;

  /* Borders & Shadows */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 20px var(--c-primary-glow);

  /* Transitions */
  --t-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --t-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   RESET & GLOBAL
   ========================================================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  background-color: var(--c-bg);
  color: var(--c-text-main);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
}

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

ul {
  list-style: none;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* Typography Utilities */
.gradient-text {
  background: linear-gradient(135deg, var(--c-primary) 0%, #20A4F3 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

/* ==========================================================================
   COMPONENTS
   ========================================================================== */
/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--t-fast);
  border: none;
  outline: none;
}

.btn-primary {
  background-color: var(--c-primary);
  color: var(--c-bg);
  box-shadow: 0 4px 14px var(--c-primary-glow);
}

.btn-primary:hover {
  background-color: #4dfadc;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--c-primary-glow);
}

.btn-ghost {
  background-color: transparent;
  color: var(--c-text-main);
  border: 1px solid var(--c-border);
}

.btn-ghost:hover {
  background-color: var(--c-surface);
  border-color: var(--c-text-muted);
}

.btn-full {
  width: 100%;
}

/* Section Header */
.section {
  padding: var(--space-xl) 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.section-label {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--c-primary);
  margin-bottom: var(--space-sm);
  font-weight: 600;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: var(--space-sm);
}

.section-subtitle {
  color: var(--c-text-muted);
  font-size: 1.1rem;
}

/* ==========================================================================
   NAVIGATION
   ========================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  background: rgba(13, 27, 42, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
  z-index: 1000;
  transition: all var(--t-fast);
}

.navbar.scrolled {
  background: rgba(13, 27, 42, 0.95);
  box-shadow: var(--shadow-glass);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.nav-link {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--c-text-muted);
}

.nav-link:hover,
.nav-link.active {
  color: var(--c-text-main);
}

.logo-img {
  height: 40px;
  width: auto;
}

.nav-cta {
  background: rgba(62, 207, 178, 0.1);
  color: var(--c-primary);
  padding: 0.5rem 1.2rem;
  border-radius: 2rem;
  border: 1px solid rgba(62, 207, 178, 0.2);
}

.nav-cta:hover {
  background: var(--c-primary);
  color: var(--c-bg);
}

/* Language Toggle */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.lang-toggle {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  padding: 0.4rem 0.8rem;
  border-radius: 2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--c-text-muted);
  transition: all var(--t-fast);
}

.lang-toggle:hover {
  border-color: var(--c-text-muted);
  color: var(--c-text-main);
}

.lang-opt.active {
  color: var(--c-primary);
}

/* Hamburger */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--c-text-main);
  margin-bottom: 5px;
  transition: all var(--t-fast);
}

.hamburger span:last-child {
  margin-bottom: 0;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  /* Offset for navbar */
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
}

.hero-dots {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
}

.hero-glow {
  position: absolute;
  top: -20%;
  left: -10%;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, rgba(62, 207, 178, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(80px);
}

.hero-nodes {
  position: absolute;
  top: 50%;
  right: -5%;
  transform: translateY(-50%);
  width: 600px;
  height: 600px;
  z-index: -1;
  opacity: 0.8;
  animation: floatNode 8s ease-in-out infinite;
}

@keyframes floatNode {

  0%,
  100% {
    transform: translateY(-50%) rotate(0deg);
  }

  50% {
    transform: translateY(-55%) rotate(2deg);
  }
}

.hero-content {
  max-width: 700px;
  position: relative;
  z-index: 10;
}

.hero-badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: rgba(244, 124, 60, 0.1);
  border: 1px solid rgba(244, 124, 60, 0.2);
  color: var(--c-secondary);
  border-radius: 2rem;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.hero-headline {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  letter-spacing: -1px;
  margin-bottom: var(--space-sm);
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  color: var(--c-text-muted);
  max-width: 600px;
  margin-bottom: var(--space-md);
}

.hero-actions {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--c-border);
}

.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--c-text-main);
  line-height: 1.1;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--c-text-muted);
}

.stat-divider {
  width: 1px;
  height: 40px;
  background-color: var(--c-border);
}

/* ==========================================================================
   SERVICES
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.service-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg) var(--space-md);
  transition: all var(--t-smooth);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(800px circle at var(--mouse-x, 0) var(--mouse-y, 0), rgba(62, 207, 178, 0.06), transparent 40%);
  z-index: -1;
  opacity: 0;
  transition: opacity var(--t-fast);
}

.service-card:hover {
  transform: translateY(-10px);
  border-color: rgba(62, 207, 178, 0.3);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

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

.card-featured {
  background: linear-gradient(180deg, var(--c-surfaceHover) 0%, var(--c-surface) 100%);
  border-color: rgba(62, 207, 178, 0.2);
}

.card-featured::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--c-primary);
}

.service-icon {
  width: 60px;
  height: 60px;
  background: rgba(62, 207, 178, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-primary);
  margin-bottom: var(--space-md);
}

.card-featured .service-icon {
  background: var(--c-primary);
  color: var(--c-bg);
  box-shadow: var(--shadow-glow);
}

.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.service-card p {
  color: var(--c-text-muted);
  margin-bottom: var(--space-md);
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.service-tags li {
  font-size: 0.8rem;
  padding: 0.3rem 0.8rem;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: 2rem;
  color: var(--c-text-muted);
}

/* ==========================================================================
   PARTNERS
   ========================================================================== */
.partners {
  background: var(--c-surface);
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
}

.partners-label {
  text-align: center;
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 2px;
  color: var(--c-text-muted);
  margin-bottom: var(--space-md);
}

.partners-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-xl);
}

.partner-logo {
  filter: grayscale(100%) opacity(0.5);
  transition: all var(--t-fast);
  cursor: pointer;
}

.partner-logo:hover {
  filter: grayscale(0%) opacity(1);
  transform: scale(1.05);
}

.partner-inner {
  display: flex;
  align-items: center;
  gap: 12px;
}

.partner-inner svg {
  height: 24px;
  width: auto;
}

.partner-inner span {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
}

/* ==========================================================================
   ABOUT
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.about-text {
  font-size: 1.1rem;
  color: var(--c-text-muted);
  margin-bottom: var(--space-sm);
}

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

.pillar {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
}

.pillar-icon {
  font-size: 1.5rem;
}

.pillar strong {
  display: block;
  font-family: var(--font-display);
  color: var(--c-text-main);
  margin-bottom: 0.2rem;
}

.pillar p {
  font-size: 0.9rem;
  color: var(--c-text-muted);
  margin: 0;
}

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

.about-node-graph {
  width: 100%;
  max-width: 450px;
  animation: floatNode 10s ease-in-out infinite reverse;
}

/* ==========================================================================
   CONTACT
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-xl);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  position: relative;
  overflow: hidden;
}

.contact-grid::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(circle at top right, rgba(62, 207, 178, 0.05), transparent 70%);
  z-index: 0;
}

.contact-info,
.contact-form {
  position: relative;
  z-index: 1;
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: var(--space-md);
}

.contact-detail-label {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--c-text-main);
  margin-bottom: 0.2rem;
}

.contact-detail-value {
  color: var(--c-text-muted);
}

.contact-detail-value:hover {
  color: var(--c-primary);
}

.contact-promise {
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: 1px solid var(--c-border);
  color: var(--c-text-muted);
  font-style: italic;
}

/* Form Styles */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

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

.form-group label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--c-text-main);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  color: var(--c-text-main);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: all var(--t-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(62, 207, 178, 0.1);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  background: var(--c-surface);
  border-top: 1px solid var(--c-border);
  padding: var(--space-xl) 0 var(--space-md);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--c-border);
}

.footer-tagline {
  color: var(--c-text-muted);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

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

.footer-nav a {
  color: var(--c-text-muted);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
}

.footer-nav a:hover {
  color: var(--c-primary);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--c-text-muted);
  font-size: 0.85rem;
}

.footer-domain {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--c-text-main);
}

.footer-logo-img {
  height: 36px;
  width: auto;
}

/* ==========================================================================
   ANIMATIONS & REVEAL (IntersectionObserver)
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-d1 {
  transition-delay: 0.1s;
}

.reveal-d2 {
  transition-delay: 0.2s;
}

.reveal-d3 {
  transition-delay: 0.3s;
}

.reveal-d4 {
  transition-delay: 0.4s;
}

/* ==========================================================================
   RESPONSIVE (Mobile First approach adaptations)
   ========================================================================== */
@media (max-width: 992px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    padding: var(--space-md);
  }

  .hero-nodes {
    right: -20%;
    opacity: 0.3;
  }
}

@media (max-width: 768px) {
  .navbar {
    height: 70px;
  }

  .hamburger {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: var(--c-surface);
    flex-direction: column;
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--c-border);
    clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
    transition: clip-path var(--t-smooth);
  }

  .nav-links.active {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0% 100%);
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-stats {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
    border: none;
  }

  .stat-divider {
    display: none;
  }

  .footer-top {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .footer-nav {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }
}