/* ============================================
   SKY HIGH FPV — style.css
   Premium Dark FPV Theme
   ============================================ */

/* ---------- RESET & BASE ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-dark: #050c1a;
  --bg-card: rgba(10, 22, 40, 0.7);
  --bg-card2: rgba(13, 31, 56, 0.75);
  --cyan: #00d4ff;
  --cyan-dim: #0099bb;
  --blue: #0ea5e9;
  --purple: #7c3aed;
  --accent: #00d4ff;
  --accent2: #38bdf8;
  --text: #e2e8f0;
  --text-dim: #94a3b8;
  --border: rgba(0,212,255,0.15);
  --border-hover: rgba(0,212,255,0.4);
  --glow: 0 0 30px rgba(0,212,255,0.25);
  --glow-strong: 0 0 60px rgba(0,212,255,0.4);
  --radius: 16px;
  --radius-sm: 10px;
  --font-head: 'Orbitron', sans-serif;
  --font-body: 'Inter', sans-serif;
  --nav-h: 70px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg-dark);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ---------- SCROLLBAR ---------- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--cyan-dim); border-radius: 99px; }

/* ---------- SELECTION ---------- */
::selection { background: rgba(0,212,255,0.3); color: white; }

/* ============================================
   DEVELOPMENT TICKER BANNER
   ============================================ */
.dev-banner {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 30px;
  background: linear-gradient(90deg, #d97706, #b45309);
  color: white;
  z-index: 1002;
  overflow: hidden;
  display: flex;
  align-items: center;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 1px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  text-transform: uppercase;
}

.dev-banner-track {
  display: flex;
  width: max-content;
  animation: ticker-scroll 22s linear infinite;
}

.dev-banner-text {
  padding-right: 60px;
  white-space: nowrap;
}

@keyframes ticker-scroll {
  0% { transform: translate3d(0, 0, 0); }
  100% { transform: translate3d(-50%, 0, 0); }
}

/* ============================================
   TOP INFO BAR
   ============================================ */
.top-info-bar {
  position: fixed;
  top: 30px; left: 0; right: 0;
  height: 40px;
  background: #030810;
  border-bottom: 1px solid rgba(0, 212, 255, 0.1);
  z-index: 1001;
  display: flex;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.top-info-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.top-info-contacts {
  display: flex;
  gap: 24px;
  align-items: center;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.info-item a {
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s;
}

.info-item a:hover {
  color: var(--cyan);
}

.info-icon {
  color: var(--cyan);
}

.top-info-action {
  display: flex;
  align-items: center;
}

.btn-top-register {
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #050c1a;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.75rem;
  padding: 4px 14px;
  border-radius: 99px;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  letter-spacing: 0.5px;
}

.btn-top-register:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
}

@media (max-width: 768px) {
  .top-info-contacts {
    gap: 12px;
  }
  .info-item.info-address {
    display: none; /* Hide address on mobile/tablet to save space */
  }
}

@media (max-width: 480px) {
  .top-info-contacts {
    gap: 8px;
  }
  .info-item, .info-item a {
    font-size: 0.72rem;
  }
  .btn-top-register {
    padding: 3px 10px;
    font-size: 0.68rem;
  }
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  position: fixed;
  top: 70px; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 1000;
  background: rgba(5,12,26,0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s, box-shadow 0.3s, top 0.3s;
}
.navbar.scrolled { background: rgba(5,12,26,0.95); box-shadow: var(--glow); }

.nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 20px;
  height: 100%; display: flex; align-items: center; gap: 32px;
}

.logo {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.2rem;
  color: white;
  text-decoration: none;
  display: flex; align-items: center; gap: 8px;
  letter-spacing: 2px;
  flex-shrink: 0;
}
.logo-icon { color: var(--cyan); font-size: 1.4rem; }
.logo-accent { color: var(--cyan); }

.nav-links {
  list-style: none;
  display: flex; gap: 8px;
  margin-left: auto;
}
.nav-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 99px;
  transition: color 0.2s, background 0.2s;
  letter-spacing: 0.5px;
}
.nav-links a:hover { color: var(--cyan); background: rgba(0,212,255,0.1); }

.btn-nav {
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #050c1a;
  font-weight: 700;
  font-size: 0.85rem;
  padding: 10px 22px;
  border-radius: 99px;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.btn-nav:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(0,212,255,0.4); }

.hamburger {
  display: none; background: none; border: none; cursor: pointer;
  flex-direction: column; gap: 5px; padding: 5px;
}
.hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--text); border-radius: 99px;
  transition: all 0.3s;
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--nav-h) + 70px);
  overflow: hidden;
  background: radial-gradient(ellipse 80% 60% at 70% 50%, rgba(0,150,255,0.08) 0%, transparent 70%),
              radial-gradient(ellipse 60% 80% at 20% 80%, rgba(124,58,237,0.07) 0%, transparent 60%),
              transparent;
}

.hero-bg-grid {
  position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(0,212,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,0.05) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 0%, transparent 100%);
}

.hero-particles {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
}
.particle {
  position: absolute;
  border-radius: 50%;
  background: var(--cyan);
  opacity: 0;
  animation: float-particle linear infinite;
}

@keyframes float-particle {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 0.8; }
  90% { opacity: 0.4; }
  100% { transform: translateY(-100px) scale(1); opacity: 0; }
}

.hero-content {
  position: relative; z-index: 2;
  flex: 1;
  padding: 40px 20px 40px 60px;
  max-width: 620px;
}

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(0,212,255,0.1);
  border: 1px solid var(--border);
  color: var(--cyan);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 99px;
  margin-bottom: 24px;
  letter-spacing: 1px;
  animation: fadeUp 0.6s ease 0.2s both;
}

.hero-title {
  font-family: var(--font-head);
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 900;
  line-height: 1.0;
  letter-spacing: -1px;
  margin-bottom: 20px;
  color: white;
}
.hero-title .line1 { display: block; animation: fadeUp 0.6s ease 0.3s both; }
.hero-title .line2 { display: block; animation: fadeUp 0.6s ease 0.4s both; }

.glow-text {
  background: linear-gradient(90deg, var(--cyan), var(--blue), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 20px rgba(0,212,255,0.5));
}

.hero-sub {
  color: var(--text-dim);
  font-size: 1.1rem;
  margin-bottom: 36px;
  line-height: 1.7;
  animation: fadeUp 0.6s ease 0.5s both;
}

.hero-cta {
  display: flex; gap: 16px; flex-wrap: wrap;
  margin-bottom: 48px;
  animation: fadeUp 0.6s ease 0.6s both;
}

.btn-primary {
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #050c1a;
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 32px;
  border-radius: 99px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  display: inline-flex; align-items: center; gap: 8px;
  letter-spacing: 0.3px;
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 35px rgba(0,212,255,0.45); }

.btn-ghost {
  background: transparent;
  color: white;
  font-weight: 600;
  font-size: 1rem;
  padding: 13px 32px;
  border-radius: 99px;
  text-decoration: none;
  border: 1px solid rgba(255,255,255,0.2);
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}
.btn-ghost:hover { border-color: var(--cyan); background: rgba(0,212,255,0.08); transform: translateY(-2px); }

.hero-stats {
  display: flex; align-items: center; gap: 24px;
  animation: fadeUp 0.6s ease 0.7s both;
}
.stat { text-align: center; }
.stat-num { display: block; font-family: var(--font-head); font-size: 1.8rem; font-weight: 700; color: var(--cyan); }
.stat-label { font-size: 0.75rem; color: var(--text-dim); letter-spacing: 0.5px; text-transform: uppercase; margin-top: 2px; }
.stat-div { width: 1px; height: 40px; background: var(--border); }

.hero-drone-wrap {
  position: relative; z-index: 2;
  flex: 1;
  display: flex; align-items: center; justify-content: center;
  min-height: 500px;
}

.drone-glow-ring {
  position: absolute;
  width: 450px; height: 450px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,212,255,0.15) 0%, transparent 70%);
  animation: pulse-ring 3s ease-in-out infinite;
}

@keyframes pulse-ring {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.1); opacity: 1; }
}

.hero-drone {
  position: relative; z-index: 1;
  width: min(500px, 90%);
  filter: drop-shadow(0 0 40px rgba(0,180,255,0.5)) drop-shadow(0 20px 60px rgba(0,100,255,0.3));
  animation: drone-float 4s ease-in-out infinite;
  transform-origin: center;
}

@keyframes drone-float {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50% { transform: translateY(-20px) rotate(2deg); }
}

.drone-shadow {
  position: absolute;
  bottom: 60px;
  width: 300px; height: 30px;
  background: radial-gradient(ellipse, rgba(0,212,255,0.2) 0%, transparent 70%);
  border-radius: 50%;
  animation: shadow-pulse 4s ease-in-out infinite;
}
@keyframes shadow-pulse {
  0%, 100% { transform: scaleX(1); opacity: 0.7; }
  50% { transform: scaleX(0.8); opacity: 0.4; }
}

.scroll-hint {
  position: absolute;
  bottom: 30px; left: 60px;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  color: var(--text-dim); font-size: 0.75rem; letter-spacing: 2px;
  text-transform: uppercase;
  animation: fadeUp 0.6s ease 1s both;
}
.scroll-line {
  width: 1px; height: 50px;
  background: linear-gradient(to bottom, var(--cyan), transparent);
  animation: scroll-drop 2s ease-in-out infinite;
}
@keyframes scroll-drop {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================
   SECTIONS COMMON
   ============================================ */
section { padding: 100px 0; }

.section-tag {
  display: inline-block;
  background: rgba(0,212,255,0.1);
  border: 1px solid var(--border);
  color: var(--cyan);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 99px;
  margin-bottom: 16px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.section-title {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: white;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}
.section-title .accent { color: var(--cyan); }

.section-sub {
  color: var(--text-dim);
  font-size: 1.05rem;
  max-width: 600px;
  margin-bottom: 56px;
}

/* ============================================
   SERVICES
   ============================================ */
.services { background: linear-gradient(180deg, rgba(5, 12, 26, 0.3) 0%, rgba(6, 15, 32, 0.3) 100%); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
  cursor: default;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}
.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-hover);
  box-shadow: 0 20px 60px rgba(0,212,255,0.1), var(--glow);
}
.service-card:hover::before { opacity: 1; }

.service-badge {
  position: absolute; top: 16px; right: 16px;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #050c1a;
  font-size: 0.7rem; font-weight: 700;
  padding: 4px 12px; border-radius: 99px;
  letter-spacing: 0.5px;
}

.service-icon { font-size: 2.2rem; margin-bottom: 16px; line-height: 1; }
.service-card h3 {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  color: white;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}
.service-card p { color: var(--text-dim); font-size: 0.9rem; margin-bottom: 20px; line-height: 1.7; }

.service-list {
  list-style: none;
  margin-bottom: 24px;
}
.service-list li {
  color: var(--text-dim);
  font-size: 0.85rem;
  padding: 5px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  display: flex; align-items: center; gap: 8px;
}
.service-list li::before { content: '→'; color: var(--cyan); font-size: 0.8rem; }

.service-cta {
  display: inline-flex; align-items: center;
  color: var(--cyan);
  font-weight: 600; font-size: 0.9rem;
  text-decoration: none;
  transition: gap 0.2s;
  gap: 6px;
}
.service-cta:hover { gap: 12px; }

/* ============================================
   PROJECTS
   ============================================ */
.projects { background: rgba(6, 15, 32, 0.3); }

.filter-bar {
  display: flex; gap: 10px; flex-wrap: wrap;
  margin-bottom: 40px;
}
.filter-btn {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 8px 20px;
  border-radius: 99px;
  cursor: pointer;
  transition: all 0.2s;
}
.filter-btn:hover, .filter-btn.active {
  background: rgba(0,212,255,0.15);
  border-color: var(--cyan);
  color: var(--cyan);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s, opacity 0.3s;
}
.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,212,255,0.12);
}
.project-card.hidden { display: none; }

.project-img {
  height: 200px;
  display: flex; align-items: center; justify-content: center;
  position: relative;
  overflow: hidden;
}
.proj-drone-art {
  text-align: center;
  font-size: 3rem;
  color: rgba(255,255,255,0.9);
  text-shadow: 0 0 30px rgba(255,255,255,0.5);
  line-height: 1.4;
  z-index: 1;
}
.proj-drone-art small { font-size: 0.8rem; display: block; color: rgba(255,255,255,0.7); font-family: var(--font-head); letter-spacing: 1px; }

.project-overlay {
  position: absolute; top: 12px; left: 12px;
}
.proj-tag {
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  color: var(--cyan);
  font-size: 0.75rem; font-weight: 600;
  padding: 4px 12px; border-radius: 99px;
  letter-spacing: 0.5px;
}

.project-info { padding: 20px 24px; }
.project-info h4 {
  font-family: var(--font-head);
  font-size: 1rem;
  color: white;
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}
.project-info p { color: var(--text-dim); font-size: 0.875rem; line-height: 1.6; margin-bottom: 14px; }

.proj-specs { display: flex; gap: 8px; flex-wrap: wrap; }
.proj-specs span {
  background: rgba(0,212,255,0.1);
  border: 1px solid var(--border);
  color: var(--cyan);
  font-size: 0.75rem; font-weight: 500;
  padding: 3px 10px; border-radius: 99px;
}

/* ============================================
   HOW IT WORKS
   ============================================ */
.how-it-works {
  background: linear-gradient(135deg, rgba(6, 15, 32, 0.35) 0%, rgba(10, 22, 40, 0.35) 50%, rgba(6, 15, 32, 0.35) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.steps-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 56px;
}

.step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  flex: 1; min-width: 180px; max-width: 220px;
  transition: transform 0.3s, border-color 0.3s;
}
.step:hover { transform: translateY(-5px); border-color: var(--border-hover); }

.step-num {
  font-family: var(--font-head);
  font-size: 0.75rem;
  color: var(--cyan);
  letter-spacing: 2px;
  margin-bottom: 12px;
  opacity: 0.7;
}
.step-icon { font-size: 2.5rem; margin-bottom: 16px; }
.step h4 {
  font-family: var(--font-head);
  font-size: 0.95rem;
  color: white;
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}
.step p { color: var(--text-dim); font-size: 0.85rem; line-height: 1.6; }

.step-arrow {
  font-size: 1.5rem;
  color: var(--cyan);
  opacity: 0.4;
  flex-shrink: 0;
}

/* ============================================
   ESTIMATE FORM
   ============================================ */
.estimate { background: rgba(5, 12, 26, 0.3); }

.estimate-wrap {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 32px;
  align-items: start;
}

.estimate-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.form-group {
  display: flex; flex-direction: column; gap: 8px;
}
.form-group.full-width { margin-bottom: 24px; }

.form-group label {
  color: var(--text-dim);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.3px;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 12px 16px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
  appearance: none;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%2300d4ff' viewBox='0 0 24 24'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 20px;
  padding-right: 40px;
  cursor: pointer;
}
.form-group select option { background: #0a1628; color: var(--text); }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0,212,255,0.1);
  background: rgba(0,212,255,0.04);
}

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

.form-group input::placeholder, .form-group textarea::placeholder { color: rgba(148,163,184,0.5); }

.form-check {
  display: flex; align-items: flex-start; gap: 12px;
  margin-bottom: 28px;
  color: var(--text-dim); font-size: 0.9rem;
}
.form-check input[type="checkbox"] {
  width: 18px; height: 18px; flex-shrink: 0;
  accent-color: var(--cyan); cursor: pointer; margin-top: 2px;
}

.btn-submit {
  width: 100%;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #050c1a;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1rem;
  padding: 16px 32px;
  border: none;
  border-radius: 99px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s;
  letter-spacing: 1px;
}
.btn-submit:hover:not(:disabled) { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(0,212,255,0.45); }
.btn-submit:disabled { opacity: 0.6; cursor: not-allowed; }

/* Sidebar */
.estimate-sidebar { display: flex; flex-direction: column; gap: 20px; }

.sidebar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  position: sticky; top: calc(var(--nav-h) + 20px);
}
.sidebar-card h4 {
  font-family: var(--font-head);
  font-size: 0.9rem;
  color: white;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.summary-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 0.85rem;
}
.summary-item span { color: var(--text-dim); }
.summary-item strong { color: var(--cyan); font-weight: 600; text-align: right; max-width: 120px; word-break: break-word; }

.sidebar-tip {
  margin-top: 20px;
  background: rgba(0,212,255,0.06);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
  color: var(--text-dim);
  font-size: 0.8rem;
  line-height: 1.6;
}

.quick-btn {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 10px;
  transition: transform 0.2s, box-shadow 0.2s;
}
.quick-btn:hover { transform: translateY(-2px); }
.quick-btn svg { width: 20px; height: 20px; }
.quick-btn.whatsapp { background: #25D366; color: white; }
.quick-btn.whatsapp:hover { box-shadow: 0 8px 25px rgba(37,211,102,0.4); }
.quick-btn.email { background: rgba(0,212,255,0.1); border: 1px solid var(--border); color: var(--cyan); }
.quick-btn.email:hover { box-shadow: 0 8px 25px rgba(0,212,255,0.2); }

/* Success Message */
.success-msg {
  position: fixed; inset: 0; z-index: 2000;
  background: rgba(5,12,26,0.9);
  backdrop-filter: blur(20px);
  display: flex; align-items: center; justify-content: center;
}
.success-inner {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 60px 40px;
  text-align: center;
  max-width: 440px;
  animation: scaleIn 0.5s cubic-bezier(0.34,1.56,0.64,1);
}
.success-icon { font-size: 4rem; margin-bottom: 20px; animation: bounce 0.6s ease 0.3s both; }
.success-inner h3 { font-family: var(--font-head); font-size: 1.8rem; color: white; margin-bottom: 12px; }
.success-inner p { color: var(--text-dim); margin-bottom: 28px; line-height: 1.7; }

@keyframes scaleIn {
  from { transform: scale(0.8); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
@keyframes bounce {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.3); }
}

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonials { background: rgba(6, 15, 32, 0.3); }

.testi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 16px;
}

.testi-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: transform 0.3s, box-shadow 0.3s;
  position: relative;
}
.testi-card::before {
  content: '"';
  position: absolute; top: 16px; right: 24px;
  font-size: 5rem; line-height: 1;
  color: var(--cyan); opacity: 0.1;
  font-family: serif;
}
.testi-card:hover { transform: translateY(-5px); box-shadow: var(--glow); }
.testi-stars { color: #f59e0b; font-size: 1.1rem; letter-spacing: 2px; margin-bottom: 16px; }
.testi-card > p { color: var(--text-dim); font-size: 0.95rem; line-height: 1.7; margin-bottom: 24px; }
.testi-author { display: flex; align-items: center; gap: 14px; }
.testi-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.85rem; color: white; flex-shrink: 0;
}
.testi-author strong { display: block; color: white; font-size: 0.95rem; }
.testi-author span { color: var(--text-dim); font-size: 0.8rem; }

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: rgba(3, 8, 16, 0.45);
  border-top: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.footer-glow {
  position: absolute;
  top: 0; left: 50%; transform: translateX(-50%);
  width: 600px; height: 200px;
  background: radial-gradient(ellipse, rgba(0,212,255,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding: 60px 0 40px;
}

.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { color: var(--text-dim); font-size: 0.9rem; line-height: 1.7; margin-bottom: 24px; }

.socials { display: flex; gap: 12px; }
.social-btn {
  width: 40px; height: 40px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  text-decoration: none; font-size: 1rem;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}
.social-btn:hover { background: rgba(0,212,255,0.15); border-color: var(--cyan); transform: translateY(-2px); }

.footer-links h5 {
  font-family: var(--font-head);
  font-size: 0.8rem;
  color: white;
  letter-spacing: 1.5px;
  margin-bottom: 20px;
  text-transform: uppercase;
}
.footer-links a {
  display: block;
  color: var(--text-dim); font-size: 0.9rem;
  text-decoration: none;
  margin-bottom: 10px;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--cyan); }

.footer-contact-info h5 {
  font-family: var(--font-head);
  font-size: 0.8rem;
  color: white;
  letter-spacing: 1.5px;
  margin-bottom: 20px;
  text-transform: uppercase;
}
.footer-contact-info p { color: var(--text-dim); font-size: 0.9rem; margin-bottom: 10px; }

.footer-bottom {
  text-align: center;
  padding: 24px 0;
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 0.85rem;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .hero-content { padding-left: 30px; }
  .estimate-wrap { grid-template-columns: 1fr; }
  .estimate-sidebar { position: static; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .hero { flex-direction: column; text-align: center; padding: 165px 20px 60px; min-height: auto; }
  .hero-content { padding: 0; max-width: 100%; }
  .hero-cta { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-drone-wrap { min-height: 300px; }
  .hero-drone { width: 280px; }
  .drone-glow-ring { width: 280px; height: 280px; }
  .scroll-hint { display: none; }

  .nav-links { display: none; flex-direction: column; position: absolute; top: var(--nav-h); left: 0; right: 0; background: rgba(5,12,26,0.98); border-bottom: 1px solid var(--border); padding: 20px; gap: 4px; }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; text-align: center; padding: 12px; }
  .hamburger { display: flex; margin-left: auto; }
  .btn-nav { display: none; }

  .form-row { grid-template-columns: 1fr; gap: 16px; }
  .estimate-form { padding: 24px; }
  .steps-row { gap: 8px; }
  .step-arrow { display: none; }
  .step { min-width: 140px; max-width: 180px; }
  .footer-top { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
}

/* ============================================
   3D DRONE AND GLASSMORPHISM OVERRIDES
   ============================================ */
#canvas-container {
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  z-index: 1;
  pointer-events: none;
}

section, footer {
  position: relative;
  z-index: 2;
}

.service-card, .project-card, .step, .estimate-form, .sidebar-card, .testi-card {
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

@media (min-width: 768px) {
  .hero-drone, .drone-shadow, .drone-glow-ring {
    display: none !important;
  }
}

/* ============================================
   TERMS & CONDITIONS MODAL STYLING
   ============================================ */
.footer-bottom-links {
  margin-top: 10px;
}
.footer-bottom-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.2s;
}
.footer-bottom-links a:hover {
  color: var(--cyan);
}

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 3000;
  background: rgba(3, 8, 16, 0.85);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-box {
  background: #060f20;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%;
  max-width: 800px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 30px 90px rgba(0, 212, 255, 0.15), var(--glow);
  transform: scale(0.9);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  overflow: hidden;
}

.modal-overlay.open .modal-box {
  transform: scale(1);
}

.modal-header {
  padding: 24px 32px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255, 255, 255, 0.02);
}

.modal-header-title h4 {
  font-family: var(--font-head);
  font-size: 0.8rem;
  color: var(--cyan);
  letter-spacing: 2px;
  margin-bottom: 4px;
}

.modal-header-title h2 {
  font-family: var(--font-head);
  font-size: 1.6rem;
  color: white;
  margin: 0;
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 2.2rem;
  cursor: pointer;
  line-height: 1;
  transition: color 0.2s;
  padding: 0;
}

.modal-close:hover {
  color: var(--cyan);
}

.modal-body {
  padding: 32px;
  overflow-y: auto;
  flex: 1;
  scroll-behavior: smooth;
  text-align: left;
}

.modal-subtitle {
  color: var(--cyan);
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  margin-bottom: 24px;
  border-left: 2px solid var(--cyan);
  padding-left: 12px;
  text-transform: uppercase;
}

.tc-section {
  margin-bottom: 28px;
}

.tc-section h5 {
  font-family: var(--font-head);
  font-size: 0.95rem;
  color: white;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}

.tc-section p {
  color: var(--text-dim);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 12px;
}

.tc-section ul {
  list-style: none;
  margin-bottom: 12px;
  padding-left: 0;
}

.tc-section ul li {
  color: var(--text-dim);
  font-size: 0.9rem;
  line-height: 1.7;
  padding: 4px 0;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.tc-section ul li::before {
  content: '✦';
  color: var(--cyan);
  font-size: 0.7rem;
  margin-top: 1px;
}

/* Custom scrollbar for terms modal */
.modal-body::-webkit-scrollbar {
  width: 8px;
}

.modal-body::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.02);
}

.modal-body::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 99px;
}

.modal-body::-webkit-scrollbar-thumb:hover {
  background: var(--cyan);
}

/* ============================================
   PROJECT OPTIONS CARD STYLING
   ============================================ */
.card-options-wrapper {
  margin-top: 15px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.card-option-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: flex-start;
  width: 100%;
}

.card-option-group label {
  font-size: 0.7rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

.card-select-opt {
  background: rgba(5, 12, 26, 0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: white;
  font-size: 0.8rem;
  padding: 8px 12px;
  outline: none;
  cursor: pointer;
  width: 100%;
  transition: border-color 0.2s, background-color 0.2s;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%2300d4ff' viewBox='0 0 24 24'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 16px;
  padding-right: 32px;
}

.card-select-opt:hover {
  background-color: rgba(0, 212, 255, 0.05);
  border-color: var(--border-hover);
}

.card-select-opt:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.1);
}

.card-select-opt option {
  background: #060f20;
  color: white;
}

.card-footer-price {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 20px;
  padding-top: 15px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.btn-select-build {
  width: 100%;
  text-align: center;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #050c1a;
  border: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.8rem;
  padding: 10px 20px;
  border-radius: 99px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  letter-spacing: 0.5px;
}

.btn-select-build:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 212, 255, 0.4);
}

/* ============================================
   FPV ACADEMY STYLING
   ============================================ */
.academy {
  background: linear-gradient(180deg, rgba(6, 15, 32, 0.3) 0%, rgba(5, 12, 26, 0.3) 100%);
  border-top: 1px solid var(--border);
  position: relative;
}

.academy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
  align-items: stretch;
}

.course-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.course-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-hover);
  box-shadow: 0 25px 50px rgba(0, 212, 255, 0.1), var(--glow);
}

.course-accent-bar {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  width: 100%;
}

.course-header {
  margin-bottom: 24px;
}

.course-badge {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 99px;
  border: 1px solid;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.course-header h3 {
  font-family: var(--font-head);
  font-size: 1.25rem;
  color: white;
  margin-bottom: 10px;
  font-weight: 700;
}

.course-desc {
  color: var(--text-dim);
  font-size: 0.85rem;
  line-height: 1.6;
}

.course-body {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 24px;
}

.course-section h5 {
  font-family: var(--font-head);
  font-size: 0.75rem;
  color: white;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 4px;
}

.course-list {
  list-style: none;
}

.course-list li {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.6;
  padding: 3px 0;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.course-list li::before {
  content: '✦';
  color: var(--cyan);
  font-size: 0.65rem;
  margin-top: 1px;
}

/* Specific styling for target-audience list to look clean */
.course-list.target-audience li::before {
  content: '🎯';
  color: inherit;
  font-size: 0.75rem;
}

.outcome-list {
  list-style: none;
}

.outcome-list li {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.6;
  padding: 4px 0;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.tick-icon {
  color: #10b981; /* Green color for ticks */
  font-weight: bold;
}

.course-footer {
  margin-top: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.course-duration {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: white;
  font-weight: 600;
}

.duration-icon {
  font-size: 1rem;
}

.btn-enroll-course {
  display: block;
  text-decoration: none;
  width: 100%;
  text-align: center;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #050c1a;
  border: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.8rem;
  padding: 12px 20px;
  border-radius: 99px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  letter-spacing: 0.5px;
}

.btn-enroll-course:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 212, 255, 0.4);
}