/* ============================================================
   SKYCLEAN – Landing Page Styles v2
   ============================================================ */

:root {
  --sky-300: #7dd3fc;
  --sky-400: #38bdf8;
  --sky-500: #0ea5e9;
  --sky-600: #0284c7;
  --blue-400: #60a5fa;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --indigo-500: #6366f1;
  --dark-950: #04080f;
  --dark-900: #070d1a;
  --dark-800: #0a1220;
  --dark-700: #0e1a2e;
  --dark-600: #162440;
  --text-primary: #f0f6ff;
  --text-secondary: #8899b4;
  --text-muted: #4d6180;
  --white: #ffffff;
  --border: rgba(56,189,248,0.07);
  --border-light: rgba(56,189,248,0.14);
  --border-bright: rgba(56,189,248,0.28);
  --radius: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --font-display: 'Syne', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--dark-950);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
input, textarea, button { font-family: inherit; }

/* ---- Noise overlay ---- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  opacity: 0.025;
  pointer-events: none;
  z-index: 1000;
}

/* ---- Container ---- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ---- Gradient Text ---- */
.gradient-text {
  background: linear-gradient(120deg, var(--sky-300) 0%, var(--sky-500) 50%, var(--blue-500) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---- Buttons ---- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 30px;
  background: linear-gradient(135deg, var(--sky-500) 0%, var(--blue-600) 100%);
  color: #fff;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.2px;
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 24px rgba(14,165,233,0.4), inset 0 1px 0 rgba(255,255,255,0.15);
  white-space: nowrap;
}
.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.2s;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 36px rgba(14,165,233,0.55), inset 0 1px 0 rgba(255,255,255,0.15); }
.btn-primary:hover::after { opacity: 1; }
.btn-primary:active { transform: translateY(0); }
.btn-primary:focus-visible { outline: 2px solid var(--sky-400); outline-offset: 3px; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 30px;
  background: rgba(56,189,248,0.05);
  color: var(--text-primary);
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 15px;
  border: 1px solid var(--border-light);
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  background: rgba(56,189,248,0.1);
  border-color: var(--border-bright);
  box-shadow: 0 0 20px rgba(56,189,248,0.1);
}
.btn-ghost:focus-visible { outline: 2px solid var(--sky-400); outline-offset: 3px; }

.btn-full { width: 100%; justify-content: center; }
.btn-nav {
  padding: 9px 20px;
  background: linear-gradient(135deg, var(--sky-500) 0%, var(--blue-600) 100%);
  border-radius: 100px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.3px;
  color: #fff;
  transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s;
  box-shadow: 0 2px 14px rgba(14,165,233,0.35);
  white-space: nowrap;
  margin-left: 4px;
}
.btn-nav,
.nav-links a.btn-nav { color: #fff; }
.btn-nav:hover { transform: translateY(-1px); box-shadow: 0 4px 24px rgba(14,165,233,0.5); color: #fff; opacity: 0.95; }
.btn-nav:focus-visible { outline: 2px solid var(--sky-400); outline-offset: 3px; }

/* ---- Navbar ---- */
.navbar {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  width: max-content;
  max-width: calc(100% - 40px);
  transition: top 0.4s cubic-bezier(0.16,1,0.3,1), box-shadow 0.4s;
}
.navbar.scrolled {
  top: 12px;
}
.navbar.scrolled .nav-inner {
  background: rgba(4,8,15,0.88);
  border-color: rgba(56,189,248,0.14);
  box-shadow: 0 8px 48px rgba(0,0,0,0.5), 0 0 0 1px rgba(56,189,248,0.07), inset 0 1px 0 rgba(255,255,255,0.04);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(7,13,26,0.72);
  backdrop-filter: blur(24px) saturate(1.8);
  -webkit-backdrop-filter: blur(24px) saturate(1.8);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 100px;
  padding: 14px 14px 14px 32px;
  box-shadow: 0 4px 32px rgba(0,0,0,0.35), 0 0 0 1px rgba(56,189,248,0.03), inset 0 1px 0 rgba(255,255,255,0.06);
  transition: background 0.4s, border-color 0.4s, box-shadow 0.4s;
}
.logo {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.3px;
  margin-right: 16px;
  white-space: nowrap;
}
.logo-sky { color: var(--sky-400); }
.logo-clean { color: var(--white); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
}
.nav-links a {
  padding: 9px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 100px;
  transition: color 0.2s, background 0.2s;
  white-space: nowrap;
}
.nav-links a:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.06);
}
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-left: 4px;
  border-radius: 100px;
  transition: background 0.2s;
}
.hamburger:hover { background: rgba(255,255,255,0.06); }
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 130px 0 90px;
  overflow: hidden;
}

/* Aurora background */
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero-aurora {
  position: absolute;
  inset: 0;
}
.aurora-1 {
  position: absolute;
  top: -30%;
  left: -10%;
  width: 80%;
  height: 80%;
  background: radial-gradient(ellipse at center, rgba(14,165,233,0.15) 0%, rgba(37,99,235,0.08) 40%, transparent 70%);
  animation: auroraFloat1 18s ease-in-out infinite;
  filter: blur(40px);
}
.aurora-2 {
  position: absolute;
  top: 10%;
  right: -20%;
  width: 70%;
  height: 70%;
  background: radial-gradient(ellipse at center, rgba(99,102,241,0.12) 0%, rgba(14,165,233,0.06) 40%, transparent 70%);
  animation: auroraFloat2 22s ease-in-out infinite;
  filter: blur(50px);
}
.aurora-3 {
  position: absolute;
  bottom: -20%;
  left: 20%;
  width: 60%;
  height: 60%;
  background: radial-gradient(ellipse at center, rgba(56,189,248,0.08) 0%, transparent 70%);
  animation: auroraFloat3 26s ease-in-out infinite;
  filter: blur(40px);
}
@keyframes auroraFloat1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(5%, 8%) scale(1.05); }
  66% { transform: translate(-3%, 5%) scale(0.97); }
}
@keyframes auroraFloat2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-6%, 4%) scale(1.08); }
}
@keyframes auroraFloat3 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  40% { transform: translate(4%, -6%) scale(1.06); }
  80% { transform: translate(-3%, 3%) scale(0.95); }
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(56,189,248,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56,189,248,0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 20%, transparent 75%);
}

/* Horizontal scan line */
.hero-scanline {
  position: absolute;
  left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(56,189,248,0.4) 30%, rgba(56,189,248,0.4) 70%, transparent 100%);
  animation: scanline 8s ease-in-out infinite;
  opacity: 0;
}
@keyframes scanline {
  0% { top: 10%; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { top: 90%; opacity: 0; }
}

.hero-inner {
  position: relative;
  text-align: center;
  max-width: 780px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 20px;
  background: rgba(56,189,248,0.07);
  border: 1px solid rgba(56,189,248,0.2);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  color: var(--sky-300);
  margin-bottom: 32px;
  letter-spacing: 0.8px;
  backdrop-filter: blur(10px);
}
.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--sky-400);
  box-shadow: 0 0 10px var(--sky-400), 0 0 20px rgba(56,189,248,0.4);
  animation: pulseDot 2s infinite;
}
@keyframes pulseDot {
  0%, 100% { opacity: 1; box-shadow: 0 0 10px var(--sky-400), 0 0 20px rgba(56,189,248,0.4); }
  50% { opacity: 0.7; box-shadow: 0 0 6px var(--sky-400); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(44px, 7.5vw, 86px);
  font-weight: 700;
  line-height: 1.03;
  letter-spacing: -2.5px;
  margin-bottom: 26px;
}

.hero-sub {
  font-size: clamp(15px, 2vw, 18px);
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 44px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  font-weight: 400;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 72px;
}

.hero-stats {
  display: inline-flex;
  align-items: center;
  gap: 0;
  background: rgba(10,18,32,0.6);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(16px);
  overflow: hidden;
}
.stat {
  text-align: center;
  padding: 22px 40px;
  position: relative;
}
.stat + .stat {
  border-left: 1px solid var(--border);
}
.stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 700;
  color: var(--sky-400);
  line-height: 1;
  letter-spacing: -0.5px;
  margin-bottom: 4px;
}
.stat span {
  font-size: 11px;
  color: var(--text-secondary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.stat-divider { display: none; }

.hero-scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.hero-scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(56,189,248,0.5), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---- Sections ---- */
.section { padding: 110px 0; }
.section-dark { background: var(--dark-800); }
.section-alt { background: var(--dark-900); }

.section-header {
  text-align: center;
  margin-bottom: 72px;
}
.section-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--sky-400);
  margin-bottom: 14px;
  position: relative;
  padding: 0 16px;
}
.section-tag::before,
.section-tag::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 28px;
  height: 1px;
  background: var(--sky-500);
  opacity: 0.5;
}
.section-tag::before { right: 100%; margin-right: -8px; }
.section-tag::after { left: 100%; margin-left: -8px; }

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 4.5vw, 54px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -1.5px;
}
.section-desc {
  color: var(--text-secondary);
  font-size: 16px;
  font-weight: 400;
  margin-top: 18px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

/* ---- Services Grid ---- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.service-card {
  padding: 34px 28px;
  background: rgba(10,18,32,0.7);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: transform 0.3s cubic-bezier(0.16,1,0.3,1), border-color 0.3s, box-shadow 0.3s;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--sky-400), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}
.service-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 100%;
  background: radial-gradient(ellipse at 50% 120%, rgba(14,165,233,0.08) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}
.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-light);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 0 1px rgba(56,189,248,0.06);
}
.service-card:hover::before { opacity: 1; }
.service-card:hover::after { opacity: 1; }

.service-card.featured {
  background: linear-gradient(145deg, rgba(14,165,233,0.07) 0%, rgba(37,99,235,0.05) 100%);
  border-color: rgba(14,165,233,0.2);
}
.service-card.featured::before { opacity: 1; }

.service-icon {
  width: 44px;
  height: 44px;
  margin-bottom: 22px;
  color: var(--sky-400);
  filter: drop-shadow(0 0 8px rgba(56,189,248,0.3));
}
.service-icon svg { width: 100%; height: 100%; }
.service-label {
  display: inline-block;
  padding: 3px 11px;
  background: rgba(14,165,233,0.12);
  color: var(--sky-400);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: 100px;
  border: 1px solid rgba(14,165,233,0.2);
  margin-bottom: 14px;
}
.service-card h3 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}
.service-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 18px;
}
.service-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--sky-400);
  letter-spacing: 0.2px;
  transition: color 0.2s;
}
.service-link:hover { color: var(--sky-300); }

/* ---- Dron Section ---- */
.dron-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.dron-content .section-tag { display: block; margin-bottom: 14px; }
.dron-content .section-tag::before, .dron-content .section-tag::after { display: none; }
.dron-content h2 {
  font-family: var(--font-display);
  font-size: clamp(30px, 3.5vw, 48px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -1.5px;
  margin-bottom: 22px;
}
.dron-desc {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 40px;
  font-weight: 400;
}
.dron-benefits {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 44px;
}
.dron-benefits li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 18px 20px;
  background: rgba(10,18,32,0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.25s, background 0.25s;
}
.dron-benefits li:hover {
  border-color: var(--border-light);
  background: rgba(14,165,233,0.04);
}
.benefit-icon {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  background: rgba(14,165,233,0.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--sky-400);
  margin-top: 1px;
  border: 1px solid rgba(14,165,233,0.2);
}
.benefit-icon svg { width: 14px; height: 14px; }
.dron-benefits li strong {
  display: block;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 2px;
  font-family: var(--font-display);
}
.dron-benefits li p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}
.dron-visual {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.dron-card-main {
  position: relative;
  background: linear-gradient(145deg, rgba(10,18,32,0.9) 0%, rgba(14,22,40,0.8) 100%);
  border: 1px solid rgba(14,165,233,0.18);
  border-radius: var(--radius-xl);
  padding: 52px 40px;
  text-align: center;
  overflow: hidden;
}
.dron-card-main::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(14,165,233,0.12) 0%, transparent 60%);
  pointer-events: none;
}
.dron-card-main::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(56,189,248,0.5), transparent);
}
.dron-drone-icon {
  width: 200px;
  height: 130px;
  margin: 0 auto 28px;
  position: relative;
  animation: dronHover 4s ease-in-out infinite;
}
@keyframes dronHover {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}
.dron-drone-icon svg { width: 100%; height: 100%; filter: drop-shadow(0 0 24px rgba(14,165,233,0.4)); }

.dron-tags {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}
.dron-tag {
  padding: 7px 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  backdrop-filter: blur(8px);
}
.dron-compare {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.compare-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 20px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
}
.compare-item.bad {
  background: rgba(239,68,68,0.05);
  border: 1px solid rgba(239,68,68,0.12);
  color: #fca5a5;
}
.compare-item.good {
  background: rgba(34,197,94,0.05);
  border: 1px solid rgba(34,197,94,0.12);
  color: #86efac;
}
.compare-icon { font-size: 15px; font-weight: 800; flex-shrink: 0; }

/* ---- Calculator ---- */
.calculator-wrapper {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 28px;
  align-items: start;
}
.calc-form {
  background: rgba(10,18,32,0.7);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 44px;
  display: flex;
  flex-direction: column;
  gap: 34px;
  backdrop-filter: blur(10px);
}
.calc-group > label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
}
.range-display {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  color: var(--sky-400);
  margin-bottom: 14px;
  letter-spacing: -1px;
  line-height: 1;
}
.range-input {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  background: rgba(255,255,255,0.08);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}
.range-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--sky-400), var(--blue-600));
  cursor: pointer;
  box-shadow: 0 0 0 4px rgba(14,165,233,0.15), 0 2px 10px rgba(14,165,233,0.5);
  border: 2px solid var(--dark-950);
  transition: transform 0.2s, box-shadow 0.2s;
}
.range-input::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 0 0 6px rgba(14,165,233,0.15), 0 4px 14px rgba(14,165,233,0.6);
}
.range-input::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--sky-400), var(--blue-600));
  cursor: pointer;
  border: 2px solid var(--dark-950);
}
.range-labels {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 8px;
  letter-spacing: 0.3px;
}
.radio-group {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.radio-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px 10px;
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  text-align: center;
}
.radio-card:hover { border-color: var(--border-light); background: rgba(56,189,248,0.05); }
.radio-card input { display: none; }
.radio-card:has(input:checked) {
  background: rgba(14,165,233,0.08);
  border-color: rgba(14,165,233,0.35);
  color: var(--text-primary);
  box-shadow: 0 0 20px rgba(14,165,233,0.08);
}
.radio-icon { font-size: 22px; }
.select-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.select-btn {
  padding: 10px 20px;
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 0.2px;
}
.select-btn:hover { border-color: var(--border-light); color: var(--text-primary); }
.select-btn:focus-visible { outline: 2px solid var(--sky-400); outline-offset: 3px; }
.select-btn.active {
  background: rgba(14,165,233,0.08);
  border-color: rgba(14,165,233,0.35);
  color: var(--text-primary);
  box-shadow: 0 0 20px rgba(14,165,233,0.08);
}
.checkbox-group {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.checkbox-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
}
.checkbox-card:hover { border-color: var(--border-light); }
.checkbox-card input { display: none; }
.checkbox-card:has(input:checked) {
  background: rgba(14,165,233,0.08);
  border-color: rgba(14,165,233,0.35);
  color: var(--text-primary);
}

/* Calc Result */
.calc-result {
  position: sticky;
  top: 100px;
  background: rgba(10,18,32,0.8);
  border: 1px solid rgba(14,165,233,0.18);
  border-radius: var(--radius-xl);
  padding: 0;
  overflow: hidden;
  backdrop-filter: blur(16px);
}
.calc-result::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(56,189,248,0.6), transparent);
}
.result-header {
  text-align: center;
  padding: 36px 32px 28px;
  background: linear-gradient(180deg, rgba(14,165,233,0.06) 0%, transparent 100%);
  border-bottom: 1px solid var(--border);
  position: relative;
}
.result-header::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 50%; transform: translateX(-50%);
  width: 60px; height: 2px;
  background: linear-gradient(90deg, var(--sky-500), var(--blue-500));
}
.result-header > p {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 14px;
}
.result-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 6px;
  margin-bottom: 8px;
}
.price-from { font-size: 15px; font-weight: 500; color: var(--text-secondary); }
.price-val {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 700;
  color: var(--sky-400);
  letter-spacing: -3px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  transition: transform 0.15s;
}
.price-currency {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 600;
  color: var(--sky-400);
}
.price-note { font-size: 12px; color: var(--text-muted); line-height: 1.5; }
.result-breakdown {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 0 32px;
  margin: 24px 0;
}
.breakdown-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.breakdown-item:last-child { border-bottom: none; }
.breakdown-item span:first-child { color: var(--text-secondary); }
.breakdown-item span:last-child { font-weight: 600; color: var(--text-primary); font-family: var(--font-display); }
.result-cta {
  padding: 0 32px 32px;
}
.result-cta > p {
  text-align: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}
.result-cta .btn-primary { margin-bottom: 10px; }
.result-cta .btn-ghost { font-size: 15px; }

/* ---- About ---- */
.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.about-content .section-tag { display: block; margin-bottom: 14px; }
.about-content .section-tag::before,
.about-content .section-tag::after { display: none; }
.about-content h2 {
  font-family: var(--font-display);
  font-size: clamp(30px, 3.5vw, 48px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -1.5px;
  margin-bottom: 22px;
}
.about-content p {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 18px;
  font-weight: 400;
}
.about-highlights {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 36px;
}
.about-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.value-card {
  padding: 28px 24px;
  background: rgba(10,18,32,0.7);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: transform 0.3s cubic-bezier(0.16,1,0.3,1), border-color 0.3s, box-shadow 0.3s;
  position: relative;
  overflow: hidden;
}
.value-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 100%;
  background: radial-gradient(ellipse at 50% 120%, rgba(14,165,233,0.07) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s;
}
.value-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-light);
  box-shadow: 0 16px 50px rgba(0,0,0,0.35);
}
.value-card:hover::after { opacity: 1; }
.value-num {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 700;
  color: rgba(14,165,233,0.15);
  line-height: 1;
  margin-bottom: 14px;
}
.value-card h4 {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.2px;
}
.value-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.65; }

/* ---- Pricing Table ---- */
.pricing-table-wrap {
  max-width: 960px;
  margin: 0 auto;
}
.pricing-table-scroll {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(56,189,248,0.25);
  background: rgba(10,18,32,0.65);
}
.pricing-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  min-width: 720px;
}
.pricing-table thead tr {
  background: linear-gradient(135deg, rgba(14,165,233,0.2), rgba(99,102,241,0.14));
  border-bottom: 1px solid rgba(56,189,248,0.3);
}
.pricing-table thead th {
  padding: 18px 22px;
  text-align: center;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
  min-width: 160px;
}
.pricing-table thead th:first-child {
  text-align: left;
  color: var(--text-primary);
  min-width: 200px;
}
.tier-label {
  display: inline-block;
  background: rgba(56,189,248,0.15);
  border: 1px solid rgba(56,189,248,0.35);
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 12px;
  color: var(--sky-300);
}
.pricing-table tbody tr {
  border-bottom: 1px solid rgba(56,189,248,0.1);
  transition: background 0.2s;
}
.pricing-table tbody tr:last-child { border-bottom: none; }
.pricing-table tbody tr:hover { background: rgba(56,189,248,0.07); }
.pricing-table td {
  padding: 20px 22px;
  text-align: center;
  vertical-align: middle;
}
.service-name {
  display: flex;
  align-items: center;
  gap: 10px;
  text-align: left !important;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}
.service-name svg { color: var(--sky-400); flex-shrink: 0; }
.price-cell {
  display: block;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}
.price-cell.best { color: var(--sky-400); }
.price-unit {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
  letter-spacing: 0.3px;
}
.pricing-note {
  margin-top: 16px;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}

/* ---- Contact ---- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 60px;
  align-items: start;
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 28px;
}
.contact-icon {
  flex-shrink: 0;
  width: 46px;
  height: 46px;
  background: rgba(14,165,233,0.08);
  border: 1px solid rgba(14,165,233,0.18);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--sky-400);
  transition: background 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.contact-item:hover .contact-icon {
  background: rgba(14,165,233,0.14);
  border-color: rgba(14,165,233,0.3);
  box-shadow: 0 0 20px rgba(14,165,233,0.12);
}
.contact-icon svg { width: 20px; height: 20px; }
.contact-item p {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 5px;
}
.contact-item a, .contact-item span {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  font-family: var(--font-display);
  transition: color 0.2s;
}
.contact-item a:hover { color: var(--sky-400); }
.contact-promise {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 20px;
  background: rgba(34,197,94,0.05);
  border: 1px solid rgba(34,197,94,0.12);
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  color: #86efac;
  margin-top: 16px;
}
.contact-promise svg { width: 18px; height: 18px; flex-shrink: 0; }
.contact-form {
  background: rgba(10,18,32,0.7);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 44px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  backdrop-filter: blur(10px);
  position: relative;
}
.contact-form::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(56,189,248,0.35), transparent);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* --- Floating label inputs --- */
.form-group {
  position: relative;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: rgba(148,163,184,0.9);
  margin-bottom: 6px;
  text-transform: none;
  letter-spacing: 0;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  background: rgba(255,255,255,0.04);
  border: 1.5px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  color: var(--text-primary);
  font-size: 15px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
  resize: none;
}
.form-group textarea { min-height: 120px; }
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(100,116,139,0.7); font-size: 15px; }
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--sky-500);
  background: rgba(14,165,233,0.04);
  box-shadow: 0 0 0 3px rgba(14,165,233,0.12);
}
.form-group input.invalid {
  border-color: rgba(239,68,68,0.6);
  box-shadow: 0 0 0 3px rgba(239,68,68,0.1);
}

/* --- Checkbox --- */
.form-check { margin-top: 4px; }
.form-check label,
.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  user-select: none;
  margin-bottom: 0;
  text-transform: none;
  letter-spacing: 0;
  font-size: 13px;
  font-weight: 400;
}
.checkbox-label input[type="checkbox"] { display: none; }
.checkbox-box {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 1px;
  border: 1.5px solid rgba(255,255,255,0.2);
  border-radius: 6px;
  background: rgba(255,255,255,0.04);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, background 0.2s;
}
.checkbox-label:hover .checkbox-box { border-color: var(--sky-500); }
.checkbox-label input[type="checkbox"]:checked + .checkbox-box {
  background: var(--sky-500);
  border-color: var(--sky-500);
}
.checkbox-label input[type="checkbox"]:checked + .checkbox-box::after {
  content: '';
  display: block;
  width: 5px;
  height: 9px;
  border: 2px solid #fff;
  border-top: none;
  border-left: none;
  transform: rotate(45deg) translateY(-1px);
}
.checkbox-text {
  font-size: 13px;
  font-weight: 400;
  color: rgba(148,163,184,0.8);
  line-height: 1.55;
  text-transform: none;
  letter-spacing: 0;
}
.checkbox-box.invalid-check { border-color: rgba(239,68,68,0.7) !important; }
.btn-submit { margin-top: 8px; }
.btn-arrow { transition: transform 0.2s; }
.btn-primary:hover .btn-arrow { transform: translateX(4px); }
.form-success {
  display: none;
  align-items: center;
  gap: 12px;
  padding: 18px 22px;
  background: rgba(34,197,94,0.06);
  border: 1px solid rgba(34,197,94,0.18);
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 500;
  color: #86efac;
}
.form-success svg { width: 22px; height: 22px; flex-shrink: 0; }
.form-success.show { display: flex; }

/* ---- Footer ---- */
.footer {
  background: var(--dark-950);
  border-top: 1px solid var(--border);
  padding: 72px 0 0;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 56px;
  padding-bottom: 56px;
}
.footer-brand .logo { margin-bottom: 16px; display: inline-block; }
.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 260px;
}
.footer-links h4 {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-secondary);
  margin-bottom: 18px;
}
.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 11px; }
.footer-links a {
  font-size: 14px;
  color: var(--text-muted);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--sky-400); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-bottom p { font-size: 13px; color: var(--text-muted); }
.footer-bottom a { color: var(--sky-500); }

/* ---- About value icon ---- */
.value-icon {
  width: 28px;
  height: 28px;
  color: var(--sky-400);
  margin-bottom: 14px;
  opacity: 0.7;
}
.value-icon svg { width: 100%; height: 100%; }

/* ---- About highlight with icon ---- */
.highlight {
  display: grid;
  grid-template-columns: 20px 1fr;
  grid-template-rows: auto auto;
  column-gap: 12px;
  row-gap: 2px;
  padding: 20px 22px;
  background: rgba(10,18,32,0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  border-left: 2px solid var(--sky-500);
  transition: border-color 0.25s, background 0.25s;
}
.highlight:hover { border-color: var(--border-light); border-left-color: var(--sky-400); background: rgba(14,165,233,0.04); }
.highlight > svg { color: var(--sky-400); margin-top: 2px; }
.highlight strong { font-size: 15px; font-weight: 600; font-family: var(--font-display); }
.highlight p { grid-column: 2; font-size: 14px; color: var(--text-secondary); margin: 0; line-height: 1.5; }

/* ---- Radio icon (SVG) ---- */
.radio-icon svg { width: 22px; height: 22px; }

/* ---- Process / Jak działa ---- */
.process-track {
  position: relative;
  margin-bottom: 72px;
}
.process-line {
  position: absolute;
  top: 28px;
  left: 28px;
  right: 28px;
  height: 1px;
  background: var(--border);
  z-index: 0;
}
.process-line-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--sky-500), var(--blue-500));
  transition: width 1.2s cubic-bezier(0.16,1,0.3,1);
  box-shadow: 0 0 12px rgba(14,165,233,0.4);
}
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
  z-index: 1;
}
.process-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.process-step.in-view { opacity: 1; transform: translateY(0); }
.process-step:nth-child(1) { transition-delay: 0s; }
.process-step:nth-child(2) { transition-delay: 0.15s; }
.process-step:nth-child(3) { transition-delay: 0.3s; }
.process-step:nth-child(4) { transition-delay: 0.45s; }

.step-dot {
  position: relative;
  width: 56px;
  height: 56px;
  margin-bottom: 24px;
  flex-shrink: 0;
}
.step-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(14,165,233,0.25);
  animation: stepRingPulse 3s ease-in-out infinite;
}
.process-step.in-view .step-ring {
  border-color: rgba(14,165,233,0.4);
}
@keyframes stepRingPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.15); opacity: 0.4; }
}
.step-icon {
  position: absolute;
  inset: 6px;
  background: linear-gradient(135deg, rgba(14,165,233,0.12) 0%, rgba(37,99,235,0.1) 100%);
  border: 1px solid rgba(14,165,233,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--sky-400);
  transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.process-step.in-view .step-icon {
  background: linear-gradient(135deg, rgba(14,165,233,0.18) 0%, rgba(37,99,235,0.14) 100%);
  border-color: rgba(14,165,233,0.35);
  box-shadow: 0 0 24px rgba(14,165,233,0.2);
}
.step-icon svg { width: 20px; height: 20px; }
.step-num {
  display: block;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--sky-500);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.step-content h4 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.2px;
}
.step-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ---- Comparison bars infographic ---- */
.compare-infographic {
  background: rgba(10,18,32,0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 48px;
}
.compare-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}
.compare-infographic h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.4px;
}
.compare-legend {
  display: flex;
  gap: 20px;
}
.compare-legend span {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2px;
}
.legend-bad { color: #fca5a5; }
.legend-bad::before {
  content: '';
  display: block;
  width: 28px;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, #ef4444, #f87171);
}
.legend-good { color: #86efac; }
.legend-good::before {
  content: '';
  display: block;
  width: 28px;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--sky-600), var(--sky-400));
}
.compare-bars {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.cbar-item {
  display: grid;
  grid-template-columns: minmax(140px, 200px) 1fr;
  gap: 0 28px;
  align-items: center;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}
.cbar-item:last-child { border-bottom: none; }
.cbar-label {
  display: flex;
  align-items: center;
}
.cbar-label > span {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  font-family: var(--font-display);
  line-height: 1.3;
}
.cbar-tracks {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.cbar-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.cbar-track {
  flex: 1;
  height: 22px;
  background: rgba(255,255,255,0.04);
  border-radius: 6px;
  overflow: hidden;
}
.cbar-val {
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  min-width: 72px;
}
.bad-val { color: #fca5a5; }
.good-val { color: #86efac; }
.cbar-fill {
  height: 100%;
  width: 0;
  border-radius: 6px;
  transition: width 1.2s cubic-bezier(0.16,1,0.3,1);
}
.cbar-fill.animated { width: var(--w); }
.bad-fill {
  background: linear-gradient(90deg, #ef4444, #f87171);
  box-shadow: 0 0 10px rgba(239,68,68,0.25);
}
.good-fill {
  background: linear-gradient(90deg, var(--sky-600), var(--sky-400));
  box-shadow: 0 0 10px rgba(14,165,233,0.3);
}

/* ---- Drone SVG animations ---- */
.prop { transform-origin: center; }
.prop-tl { animation: spinProp 0.4s linear infinite; transform-origin: 28px 32px; }
.prop-tr { animation: spinProp 0.4s linear infinite reverse; transform-origin: 132px 32px; }
.prop-bl { animation: spinProp 0.4s linear infinite reverse; transform-origin: 28px 88px; }
.prop-br { animation: spinProp 0.4s linear infinite; transform-origin: 132px 88px; }
@keyframes spinProp {
  from { transform: scaleX(1); }
  25%  { transform: scaleX(0.2); }
  50%  { transform: scaleX(1); }
  75%  { transform: scaleX(0.2); }
  to   { transform: scaleX(1); }
}
.spray { animation: sprayPulse 1.5s ease-in-out infinite; }
@keyframes sprayPulse {
  0%, 100% { opacity: 1; transform: translateY(0); }
  50%       { opacity: 0.5; transform: translateY(3px); }
}
.drop { animation: dropFall 1.5s ease-in infinite; }
.d2 { animation-delay: 0.25s; }
.d3 { animation-delay: 0.5s; }
@keyframes dropFall {
  0%   { opacity: 0.8; transform: translateY(0); }
  80%  { opacity: 0.3; transform: translateY(8px); }
  100% { opacity: 0; transform: translateY(12px); }
}
.signal { animation: signalFade 2s ease-in-out infinite; }
.s1 { animation-delay: 0s; }
.s2 { animation-delay: 0.4s; }
@keyframes signalFade {
  0%, 100% { opacity: 0; transform: scale(0.9); }
  50%       { opacity: 0.7; transform: scale(1); }
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .dron-layout { grid-template-columns: 1fr; gap: 48px; }
  .calculator-wrapper { grid-template-columns: 1fr; }
  .calc-result { position: static; }
  .about-layout { grid-template-columns: 1fr; gap: 48px; }
  .contact-layout { grid-template-columns: 1fr; gap: 40px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .process-line { display: none; }
  .compare-infographic { padding: 32px 24px; }
}

@media (max-width: 768px) {
  .section { padding: 72px 0; }
  .container { padding: 0 20px; }

  /* Nav */
  .navbar {
    top: 12px;
    left: 16px;
    right: 16px;
    transform: none;
    width: auto;
    max-width: none;
  }
  .nav-inner {
    border-radius: 20px;
    padding: 10px 10px 10px 18px;
    justify-content: space-between;
  }
  .hamburger { display: flex; }
  .nav-links {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(4,8,15,0.97);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    z-index: 90;
  }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: 22px; padding: 12px 32px; font-family: var(--font-display); font-weight: 600; border-radius: 16px; }

  /* Hero */
  .hero { padding: 110px 0 72px; }
  .hero-stats { flex-direction: column; gap: 0; width: 100%; max-width: 320px; margin-left: auto; margin-right: auto; }
  .stat { width: 100%; border-left: none !important; border-top: 1px solid var(--border); padding: 16px 24px; }
  .stat:first-child { border-top: none; }
  .hero-cta { flex-direction: column; align-items: center; }
  .hero-cta a { width: 100%; max-width: 320px; justify-content: center; }

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

  /* Dron section */
  .dron-card-main { padding: 32px 24px; }
  .dron-drone-icon { width: 150px; height: 100px; }

  /* Process */
  .process-steps { grid-template-columns: 1fr 1fr; gap: 32px 16px; }
  .process-line { display: none; }
  .compare-infographic { padding: 28px 20px; }
  .cbar-item { grid-template-columns: 1fr; gap: 12px; }
  .compare-top { flex-direction: column; align-items: flex-start; gap: 12px; }

  /* Calculator */
  .calc-form { padding: 24px 20px; }
  .radio-group { grid-template-columns: repeat(2, 1fr); }
  .result-header { padding: 28px 24px 22px; }
  .result-breakdown { padding: 0 24px; }
  .result-cta { padding: 0 24px 28px; }
  .price-val { font-size: 44px; }

  /* About */
  .about-values { grid-template-columns: 1fr 1fr; }
  .highlight { grid-template-columns: 18px 1fr; }

  /* Contact */
  .contact-form { padding: 28px 20px; }
  .form-row { grid-template-columns: 1fr; }

  /* Footer */
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom .container { flex-direction: column; gap: 8px; text-align: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .section { padding: 60px 0; }

  /* Hero */
  .hero-badge { font-size: 11px; padding: 7px 14px; }
  .hero-cta .btn-primary,
  .hero-cta .btn-ghost { font-size: 14px; padding: 13px 22px; }

  /* Services */
  .service-card { padding: 28px 22px; }

  /* Process */
  .process-steps { grid-template-columns: 1fr; }

  /* Calculator */
  .radio-group { grid-template-columns: 1fr 1fr; }
  .select-group { flex-direction: column; }
  .select-btn { text-align: center; }
  .checkbox-group { flex-direction: column; }

  /* About */
  .about-values { grid-template-columns: 1fr; }

  /* Compare infographic */
  .compare-infographic h3 { font-size: 17px; }

  /* Footer */
  .footer { padding: 48px 0 0; }
  .footer-inner { gap: 32px; }
}

/* ---- Social Proof ---- */
.social-proof-section {
  padding: 72px 0;
  background: var(--dark-900);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.sp-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
  background: rgba(10,18,32,0.5);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 64px;
}
.sp-stat {
  flex: 1;
  min-width: 160px;
  text-align: center;
  padding: 28px 32px;
}
.sp-stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--sky-400);
  letter-spacing: -1px;
  line-height: 1;
  margin-bottom: 6px;
}
.sp-stat span {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}
.sp-divider {
  width: 1px;
  height: 56px;
  background: var(--border);
  flex-shrink: 0;
}
.sp-testimonials {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}
.sp-testimonial {
  background: rgba(10,18,32,0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: border-color 0.3s, transform 0.3s;
}
.sp-testimonial:hover {
  border-color: var(--border-light);
  transform: translateY(-4px);
}
.sp-stars {
  color: #fbbf24;
  font-size: 16px;
  letter-spacing: 2px;
}
.sp-testimonial p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
  font-style: italic;
}
.sp-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.sp-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--sky-600), var(--blue-600));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
  font-family: var(--font-display);
}
.sp-author strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  font-family: var(--font-display);
}
.sp-author span {
  font-size: 12px;
  color: var(--text-muted);
}
.sp-clients {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}
.sp-clients > span {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  white-space: nowrap;
}
.sp-client-badges {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}
.sp-badge {
  padding: 6px 16px;
  background: rgba(56,189,248,0.05);
  border: 1px solid var(--border-light);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
}
@media (max-width: 1024px) {
  .sp-testimonials { grid-template-columns: 1fr; }
  .sp-divider { width: 80%; height: 1px; }
  .sp-stats { flex-direction: column; }
  .sp-stat { width: 100%; }
}
@media (max-width: 768px) {
  .social-proof-section { padding: 52px 0; }
  .sp-stats { margin-bottom: 44px; }
}

/* ---- Fade-in animations ---- */
.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.16,1,0.3,1), transform 0.7s cubic-bezier(0.16,1,0.3,1);
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ---- Glow pulse on featured card ---- */
@keyframes cardGlow {
  0%, 100% { box-shadow: 0 0 30px rgba(14,165,233,0.06); }
  50% { box-shadow: 0 0 50px rgba(14,165,233,0.14), 0 0 0 1px rgba(14,165,233,0.08); }
}
.service-card.featured { animation: cardGlow 4s ease-in-out infinite; }