/* ═══════════════════════════════════════════════
   KUTERA Software & Avionics Ltd. — style.css
   ═══════════════════════════════════════════════ */

/* ── CSS Variables ── */
:root {
  --navy-deep:    #040d1a;
  --navy-mid:     #071428;
  --navy-light:   #0b1f3a;
  --accent-cyan:  #29b6e8;
  --accent-blue:  #1a7abf;
  --accent-glow:  #5dd4f8;
  --star-white:   #e8f4ff;
  --text-primary: #e8f2fb;
  --text-muted:   #7ea8c9;
  --border:       rgba(41,182,232,0.18);
  --glass:        rgba(7,20,40,0.72);
  --radius:       12px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Exo 2', sans-serif;
  background: var(--navy-deep);
  color: var(--text-primary);
  overflow-x: hidden;
  min-height: 100vh;
}

/* ════════════════════════════════════════
   STARFIELD
════════════════════════════════════════ */
#starfield {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ════════════════════════════════════════
   NAVIGATION
════════════════════════════════════════ */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1.2rem, 4vw, 3rem);
  height: 68px;
  background: rgba(4,13,26,0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.nav-logo-icon {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
}

.nav-logo-text {
  font-family: 'Oxanium', sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.12em;
  color: var(--text-primary);
  line-height: 1.1;
}

.nav-logo-text span {
  display: block;
  font-size: 0.55rem;
  font-weight: 400;
  letter-spacing: 0.22em;
  color: var(--accent-cyan);
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.5vw, 2.2rem);
  list-style: none;
}

.nav-links a {
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.25s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 1px;
  background: var(--accent-cyan);
  transform: scaleX(0);
  transition: transform 0.25s;
}
.nav-links a:hover { color: var(--accent-cyan); }
.nav-links a:hover::after { transform: scaleX(1); }

/* Language Toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 3px;
  margin-left: 1rem;
}

.lang-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-family: 'Exo 2', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: 14px;
  transition: all 0.2s;
}
.lang-btn.active {
  background: var(--accent-cyan);
  color: var(--navy-deep);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ════════════════════════════════════════
   HERO
════════════════════════════════════════ */
#hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 100px clamp(1.2rem, 5vw, 6rem) 60px;
  overflow: hidden;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
}
.hero-orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(26,122,191,0.22) 0%, transparent 70%);
  top: -100px; left: -150px;
  animation: orbFloat 14s ease-in-out infinite alternate;
}
.hero-orb-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(41,182,232,0.15) 0%, transparent 70%);
  bottom: -80px; right: -120px;
  animation: orbFloat 18s ease-in-out infinite alternate-reverse;
}
@keyframes orbFloat {
  from { transform: translate(0,0) scale(1); }
  to   { transform: translate(40px, 30px) scale(1.08); }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(41,182,232,0.08);
  border: 1px solid rgba(41,182,232,0.3);
  border-radius: 30px;
  padding: 6px 18px;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 2rem;
  animation: fadeUp 0.8s ease both;
}
.hero-badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  animation: pulse 2s ease infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.4; transform: scale(1.4); }
}

.hero-logo-svg {
  width: clamp(90px, 14vw, 140px);
  margin-bottom: 2rem;
  animation: fadeUp 0.8s 0.1s ease both;
  filter: drop-shadow(0 0 24px rgba(41,182,232,0.4));
}

h1.hero-title {
  font-family: 'Oxanium', sans-serif;
  font-size: clamp(2.4rem, 6vw, 5.5rem);
  font-weight: 800;
  letter-spacing: 0.06em;
  line-height: 1.05;
  background: linear-gradient(135deg, #ffffff 0%, var(--accent-cyan) 60%, var(--accent-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeUp 0.9s 0.2s ease both;
  margin-bottom: 0.5rem;
}

.hero-subtitle-line {
  font-family: 'Oxanium', sans-serif;
  font-size: clamp(0.7rem, 1.5vw, 1rem);
  font-weight: 400;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 2rem;
  animation: fadeUp 0.9s 0.3s ease both;
}

.hero-desc {
  max-width: 620px;
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  font-weight: 300;
  line-height: 1.8;
  color: var(--text-muted);
  margin-bottom: 3rem;
  animation: fadeUp 1s 0.4s ease both;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  animation: fadeUp 1s 0.5s ease both;
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  color: var(--navy-deep);
  font-family: 'Exo 2', sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 14px 32px;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 0 28px rgba(41,182,232,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 42px rgba(41,182,232,0.55);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--accent-cyan);
  font-family: 'Exo 2', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 13px 32px;
  border-radius: 4px;
  border: 1px solid var(--accent-cyan);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.btn-secondary:hover { background: rgba(41,182,232,0.1); }

/* Scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  animation: fadeUp 1s 0.8s ease both;
}
.hero-scroll span {
  font-size: 0.62rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent-cyan), transparent);
  animation: scrollPulse 2s ease infinite;
}
@keyframes scrollPulse {
  0%,100% { opacity: 0.4; transform: scaleY(1); }
  50%      { opacity: 1;   transform: scaleY(1.15); }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ════════════════════════════════════════
   SECTION BASE
════════════════════════════════════════ */
section { position: relative; z-index: 1; }

.section-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: clamp(60px, 8vw, 110px) clamp(1.2rem, 5vw, 3rem);
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 1rem;
}
.section-tag::before {
  content: '';
  width: 28px; height: 1px;
  background: var(--accent-cyan);
}

.section-title {
  font-family: 'Oxanium', sans-serif;
  font-size: clamp(1.7rem, 3.5vw, 2.8rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.15;
  margin-bottom: 1.2rem;
  color: var(--text-primary);
}

.section-lead {
  font-size: clamp(0.95rem, 1.3vw, 1.08rem);
  font-weight: 300;
  line-height: 1.85;
  color: var(--text-muted);
  max-width: 640px;
}

.divider {
  width: 60px; height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), transparent);
  margin: 1.5rem 0 2.5rem;
}

/* ════════════════════════════════════════
   PRODUCTS & SERVICES
════════════════════════════════════════ */
#products {
  background: linear-gradient(180deg, var(--navy-deep) 0%, var(--navy-mid) 100%);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
  gap: 1.5rem;
  margin-top: 3.5rem;
}

.product-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.2rem;
  backdrop-filter: blur(12px);
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
  position: relative;
  overflow: hidden;
}
.product-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}
.product-card:hover {
  transform: translateY(-6px);
  border-color: rgba(41,182,232,0.4);
  box-shadow: 0 12px 48px rgba(41,182,232,0.12);
}
.product-card:hover::before { opacity: 1; }

.product-icon {
  width: 52px; height: 52px;
  background: rgba(41,182,232,0.1);
  border: 1px solid rgba(41,182,232,0.25);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
}

.product-card h3 {
  font-family: 'Oxanium', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.product-card p {
  font-size: 0.9rem;
  font-weight: 300;
  line-height: 1.75;
  color: var(--text-muted);
}

.product-tag {
  display: inline-block;
  margin-top: 1.2rem;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  border: 1px solid rgba(41,182,232,0.3);
  border-radius: 20px;
  padding: 4px 12px;
}

/* ════════════════════════════════════════
   ABOUT
════════════════════════════════════════ */
#about { background: var(--navy-mid); }

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

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

.about-hex {
  width: min(380px, 90vw);
  aspect-ratio: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hex-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid;
  animation: spin linear infinite;
}
.hex-ring-1 {
  width: 100%; height: 100%;
  border-color: rgba(41,182,232,0.15);
  animation-duration: 30s;
}
.hex-ring-2 {
  width: 75%; height: 75%;
  border-color: rgba(41,182,232,0.22);
  border-style: dashed;
  animation-duration: 20s;
  animation-direction: reverse;
}
.hex-ring-3 {
  width: 50%; height: 50%;
  border-color: rgba(41,182,232,0.3);
  animation-duration: 12s;
}
@keyframes spin { to { transform: rotate(360deg); } }

.hex-center-logo {
  width: 110px;
  filter: drop-shadow(0 0 30px rgba(41,182,232,0.6));
  animation: floatY 6s ease-in-out infinite;
  position: relative;
  z-index: 1;
}
@keyframes floatY {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-12px); }
}

.hex-dot {
  position: absolute;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
}
.hex-dot-1 { top: 10%; left: 50%; transform: translateX(-50%); }
.hex-dot-2 { bottom: 10%; right: 18%; }
.hex-dot-3 { top: 35%; left: 5%; }

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

.stat-box {
  background: rgba(41,182,232,0.06);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 1.4rem;
}

.stat-num {
  font-family: 'Oxanium', sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, #fff, var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ════════════════════════════════════════
   NEWS
════════════════════════════════════════ */
#news {
  background: linear-gradient(180deg, var(--navy-mid) 0%, var(--navy-light) 100%);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(300px,100%), 1fr));
  gap: 1.5rem;
  margin-top: 3.5rem;
}

.news-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  backdrop-filter: blur(10px);
  transition: transform 0.3s, box-shadow 0.3s;
  cursor: pointer;
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 40px rgba(41,182,232,0.1);
}

.news-card-img {
  height: 170px;
  background: linear-gradient(135deg, var(--navy-light), var(--navy-mid));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.news-card-img img {
  width: 70px;
  opacity: 0.22;
}

.news-card-body { padding: 1.5rem; }

.news-date {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 0.6rem;
}

.news-card h3 {
  font-family: 'Oxanium', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.4;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.news-card p {
  font-size: 0.85rem;
  font-weight: 300;
  line-height: 1.7;
  color: var(--text-muted);
}

.news-read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 1rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  text-decoration: none;
  transition: gap 0.2s;
}
.news-read-more:hover { gap: 10px; }

/* ════════════════════════════════════════
   CONTACT
════════════════════════════════════════ */
#contact { background: var(--navy-light); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 4rem;
  align-items: start;
  margin-top: 3.5rem;
}

.contact-info h3 {
  font-family: 'Oxanium', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.contact-info p {
  font-size: 0.9rem;
  font-weight: 300;
  line-height: 1.8;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 1.2rem;
}

.contact-detail-icon {
  width: 38px; height: 38px;
  background: rgba(41,182,232,0.08);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
}

.contact-detail-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.contact-detail-label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-cyan);
}

.contact-detail-value {
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--text-primary);
}

.contact-form {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.4rem;
  backdrop-filter: blur(12px);
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 1.2rem;
}

.form-group label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.form-group input,
.form-group textarea,
.form-group select {
  background: rgba(4,13,26,0.7);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px 14px;
  font-family: 'Exo 2', sans-serif;
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}

.form-group select option {
  background: var(--navy-mid);
  color: var(--text-primary);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(41,182,232,0.1);
}

.form-group textarea { resize: vertical; min-height: 110px; }

.form-submit {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  color: var(--navy-deep);
  font-family: 'Exo 2', sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 20px rgba(41,182,232,0.25);
}
.form-submit:hover {
  opacity: 0.92;
  transform: translateY(-1px);
  box-shadow: 0 8px 30px rgba(41,182,232,0.4);
}

/* ════════════════════════════════════════
   FOOTER
════════════════════════════════════════ */
footer {
  position: relative;
  z-index: 1;
  background: var(--navy-deep);
  border-top: 1px solid var(--border);
  padding: 2.5rem clamp(1.2rem, 5vw, 3rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-brand {
  font-family: 'Oxanium', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--text-muted);
  opacity: 0.6;
}

/* ════════════════════════════════════════
   SCROLL REVEAL
════════════════════════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ════════════════════════════════════════
   RESPONSIVE
════════════════════════════════════════ */
@media (max-width: 820px) {
  .hamburger { display: flex; }

  .nav-links {
    position: fixed;
    top: 68px; left: 0; right: 0;
    flex-direction: column;
    background: rgba(4,13,26,0.97);
    backdrop-filter: blur(20px);
    padding: 2rem 2rem 2.5rem;
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    transition: transform 0.35s cubic-bezier(.4,0,.2,1);
    z-index: 99;
    gap: 1.5rem;
  }
  .nav-links.open { transform: translateY(0); }
  .lang-toggle { margin-left: 0; }
}

@media (max-width: 768px) {
  .about-grid   { grid-template-columns: 1fr; gap: 3rem; }
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
}

@media (max-width: 500px) {
  .form-row { grid-template-columns: 1fr; }
}