/* ========================================
   HELIO DRONE SERVICES — GLOBAL STYLES
   ======================================== */

@import url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@400;500;600;700&family=Barlow:wght@300;400;500;600&family=Barlow+Condensed:wght@400;500;700;800&display=swap');

:root {
  --gold: #E8B84B;
  --gold-light: #F5D380;
  --gold-dark: #C49A2B;
  --navy: #060F1E;
  --navy-mid: #0C1E3A;
  --navy-light: #122448;
  --blue-accent: #1A3A6B;
  --white: #F4F6FA;
  --grey: #8A9AB5;
  --dark-grey: #1E2C45;
  --text: #D0DCF0;

  --nav-h: 80px;
  --radius: 4px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Barlow', sans-serif;
  background: var(--navy);
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5 {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0.02em;
}

h1 { font-size: clamp(2.5rem, 6vw, 5rem); color: var(--white); }
h2 { font-size: clamp(1.8rem, 4vw, 3rem); color: var(--white); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.9rem); color: var(--gold); }
h4 { font-size: 1.15rem; color: var(--gold-light); font-family: 'Barlow Condensed', sans-serif; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; }
p { color: var(--text); font-weight: 300; }

a { color: var(--gold); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--gold-light); }

/* ===== UTILITY ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }
.section-sm { padding: 60px 0; }
.text-gold { color: var(--gold); }
.text-center { text-align: center; }
.label {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  display: block;
  margin-bottom: 12px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold-dark), var(--gold));
  color: var(--navy);
  box-shadow: 0 4px 24px rgba(232, 184, 75, 0.35);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: var(--navy);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(232, 184, 75, 0.5);
}

.btn-outline {
  background: transparent;
  color: var(--gold);
  border: 2px solid var(--gold);
}
.btn-outline:hover {
  background: var(--gold);
  color: var(--navy);
  transform: translateY(-2px);
}

/* ===== GOLD DIVIDER ===== */
.divider {
  width: 60px; height: 3px;
  background: linear-gradient(90deg, var(--gold-dark), var(--gold));
  margin: 20px 0 32px;
}
.divider-center { margin: 20px auto 32px; }

/* ===== NAVIGATION ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  background: transparent;
  transition: background var(--transition), backdrop-filter var(--transition);
}

.nav.scrolled {
  background: rgba(6, 15, 30, 0.95);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(232, 184, 75, 0.2);
}

.nav-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo img {
  height: 80px;
  width: auto;
  filter: drop-shadow(0 2px 8px rgba(232,184,75,0.3));
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text);
  position: relative;
  padding-bottom: 4px;
}

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

.nav-links a:hover,
.nav-links a.active { color: var(--gold); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.nav-cta { margin-left: 12px; }

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 26px; height: 2px;
  background: var(--gold);
  transition: all var(--transition);
}

/* ===== HERO COMMON ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg,
    rgba(6,15,30,0.92) 0%,
    rgba(12,30,58,0.75) 50%,
    rgba(6,15,30,0.6) 100%
  );
}

.hero-content { 
  position: relative; 
  z-index: 2; 
  width: 100%;
}

/* Animated grid overlay */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(232,184,75,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232,184,75,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 1;
  animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
  0% { transform: translateY(0); }
  100% { transform: translateY(60px); }
}

/* ===== PAGE HERO (non-home) ===== */
.page-hero {
  min-height: 50vh;
  display: flex;
  align-items: flex-end;
  padding-bottom: 80px;
  position: relative;
  overflow: hidden;
}

.page-hero .hero-bg {
  filter: brightness(0.5);
}

.page-hero .hero-overlay {
  background: linear-gradient(to top, rgba(6,15,30,0.98) 0%, rgba(6,15,30,0.5) 100%);
}

/* ===== CARDS ===== */
.card {
  background: var(--dark-grey);
  border: 1px solid rgba(232,184,75,0.1);
  border-radius: 8px;
  overflow: hidden;
  transition: all var(--transition);
}
.card:hover {
  border-color: rgba(232,184,75,0.4);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.4), 0 0 0 1px rgba(232,184,75,0.15);
}

.card-img {
  width: 100%; height: 240px;
  object-fit: cover;
}

.card-body { padding: 28px; }

/* ===== STAT COUNTER ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1px;
  background: rgba(232,184,75,0.15);
  border: 1px solid rgba(232,184,75,0.15);
  border-radius: 8px;
  overflow: hidden;
}

.stat-item {
  background: var(--navy-mid);
  padding: 40px 24px;
  text-align: center;
}
.stat-num {
  font-family: 'Rajdhani', sans-serif;
  font-size: 3rem;
  font-weight: 700;
  color: var(--gold);
  display: block;
  line-height: 1;
}
.stat-label {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--grey);
  margin-top: 8px;
}

/* ===== ICON BOX ===== */
.icon-box {
  width: 60px; height: 60px;
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(232,184,75,0.15), rgba(232,184,75,0.05));
  border: 1px solid rgba(232,184,75,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
  flex-shrink: 0;
}

/* ===== FEATURE ROWS ===== */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.feature-row.reverse { direction: rtl; }
.feature-row.reverse > * { direction: ltr; }

.feature-img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid rgba(232,184,75,0.15);
}

/* ===== GRID LAYOUTS ===== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ===== SECTION BACKGROUNDS ===== */
.bg-mid { background: var(--navy-mid); }
.bg-dark { background: var(--navy); }
.bg-light { background: var(--dark-grey); }

/* ===== GOLD STRIPE ===== */
.gold-stripe {
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--gold-dark), var(--gold), var(--gold-dark), transparent);
}

/* ===== CONTACT FORM ===== */
.form-group { margin-bottom: 20px; }
.form-label {
  display: block;
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--gold);
  margin-bottom: 8px;
}
.form-control {
  width: 100%;
  padding: 14px 18px;
  background: rgba(26,58,107,0.3);
  border: 1px solid rgba(232,184,75,0.2);
  border-radius: var(--radius);
  color: var(--white);
  font-family: 'Barlow', sans-serif;
  font-size: 0.95rem;
  transition: border-color var(--transition);
  outline: none;
}
.form-control:focus {
  border-color: var(--gold);
  background: rgba(26,58,107,0.5);
}
.form-control::placeholder { color: var(--grey); }
textarea.form-control { resize: vertical; min-height: 140px; }

/* ===== FAQ ===== */
.faq-item {
  border-bottom: 1px solid rgba(232,184,75,0.15);
  padding: 24px 0;
}
.faq-q {
  font-family: 'Rajdhani', sans-serif;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--white);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-q::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--gold);
  transition: transform var(--transition);
  flex-shrink: 0;
}
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
  color: var(--text);
  font-weight: 300;
}
.faq-item.open .faq-a { max-height: 500px; padding-top: 16px; }

/* ===== FOOTER ===== */
.footer {
  background: rgba(3,8,16,0.98);
  border-top: 1px solid rgba(232,184,75,0.2);
  padding: 80px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 60px;
}
.footer-logo { height: 60px; margin-bottom: 20px; }
.footer-desc { color: var(--grey); font-size: 0.9rem; line-height: 1.8; }
.footer-heading {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--gold);
  margin-bottom: 20px;
}
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: var(--grey); font-size: 0.9rem; transition: color var(--transition); }
.footer-links a:hover { color: var(--gold); }
.footer-contact-item {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  align-items: flex-start;
}
.footer-contact-icon { color: var(--gold); font-size: 1rem; margin-top: 3px; flex-shrink: 0; }
.footer-contact-text { color: var(--grey); font-size: 0.9rem; }
.footer-bottom {
  border-top: 1px solid rgba(232,184,75,0.1);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--grey);
  font-size: 0.8rem;
}

/* ===== IMAGE OVERLAYS ===== */
.img-card {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  border: 1px solid rgba(232,184,75,0.1);
}
.img-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; display: block; }
.img-card:hover img { transform: scale(1.05); }
.img-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(6,15,30,0.9) 0%, transparent 60%);
  display: flex;
  align-items: flex-end;
  padding: 24px;
}

/* ===== BREADCRUMB ===== */
.breadcrumb {
  display: flex;
  gap: 8px;
  align-items: center;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--grey);
  margin-bottom: 24px;
}
.breadcrumb a { color: var(--grey); }
.breadcrumb a:hover { color: var(--gold); }
.breadcrumb-sep { color: var(--gold); }

/* ===== PROCESS STEPS ===== */
.process-step {
  display: flex;
  gap: 24px;
  align-items: flex-start;
}
.step-num {
  font-family: 'Rajdhani', sans-serif;
  font-size: 3rem;
  font-weight: 700;
  color: rgba(232,184,75,0.2);
  line-height: 1;
  min-width: 56px;
}

/* ===== BADGES ===== */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 2px;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  background: rgba(232,184,75,0.15);
  color: var(--gold);
  border: 1px solid rgba(232,184,75,0.3);
}

/* ===== MOBILE NAV ===== */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(6,15,30,0.98);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-family: 'Rajdhani', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.05em;
}
.mobile-menu a:hover { color: var(--gold); }
.mobile-close {
  position: absolute;
  top: 24px; right: 24px;
  background: none;
  border: none;
  color: var(--gold);
  font-size: 2rem;
  cursor: pointer;
}

/* ===== PULSE ANIMATION ===== */
@keyframes pulse-gold {
  0%, 100% { box-shadow: 0 0 0 0 rgba(232,184,75,0.4); }
  50% { box-shadow: 0 0 0 12px rgba(232,184,75,0); }
}

/* ===== FADE IN ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .feature-row { grid-template-columns: 1fr; gap: 40px; }
  .feature-row.reverse { direction: ltr; }
}

@media (max-width: 768px) {
  :root { --nav-h: 68px; }
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  .section { padding: 70px 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
}