/* ============================================================
   SKYFRAME WORKS — style.css
   ============================================================ */

/* ---------- Custom Properties ---------- */
:root {
  --navy:        #0d1b2a;
  --navy-mid:    #112236;
  --navy-light:  #1a3350;
  --sky:         #38b6f5;
  --sky-dark:    #1e8ec9;
  --sky-glow:    rgba(56, 182, 245, 0.15);
  --white:       #ffffff;
  --off-white:   #f0f6fc;
  --text-muted:  #8ba4bc;
  --border:      rgba(56, 182, 245, 0.18);
  --card-bg:     rgba(26, 51, 80, 0.55);
  --shadow:      0 8px 40px rgba(0, 0, 0, 0.45);
  --transition:  0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --radius:      14px;
  --radius-sm:   8px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--navy);
  color: var(--white);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ---------- Utility ---------- */
.container {
  width: min(1200px, 100% - 3rem);
  margin-inline: auto;
}

.section {
  padding-block: clamp(4rem, 8vw, 7rem);
}

.section__header {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}

.section__eyebrow {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--sky);
  margin-bottom: 0.75rem;
}

.section__title {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section__sub {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: 50px;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: var(--transition);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: linear-gradient(135deg, var(--sky), var(--sky-dark));
  color: var(--navy);
  box-shadow: 0 4px 24px rgba(56, 182, 245, 0.35);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(56, 182, 245, 0.5);
  filter: brightness(1.08);
}

.btn--outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255, 255, 255, 0.35);
}

.btn--outline:hover {
  border-color: var(--sky);
  color: var(--sky);
  transform: translateY(-2px);
}

.btn--full { width: 100%; }

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  padding: 1.2rem 0;
  transition: background var(--transition), padding var(--transition), box-shadow var(--transition);
}

.nav.scrolled {
  background: rgba(13, 27, 42, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 0.8rem 0;
  box-shadow: 0 2px 24px rgba(0, 0, 0, 0.4);
}

.nav__inner {
  width: min(1200px, 100% - 3rem);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav__logo {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.nav__logo-icon {
  color: var(--sky);
  font-size: 0.85rem;
}

.nav__logo-accent { color: var(--sky); }

.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__links a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
}

.nav__links a:hover { color: var(--white); }

.nav__cta {
  background: linear-gradient(135deg, var(--sky), var(--sky-dark)) !important;
  color: var(--navy) !important;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700 !important;
  padding: 0.55rem 1.3rem;
  border-radius: 50px;
  font-size: 0.82rem !important;
  letter-spacing: 0.02em;
  transition: var(--transition) !important;
  box-shadow: 0 3px 16px rgba(56, 182, 245, 0.3);
}

.nav__cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(56, 182, 245, 0.45) !important;
  filter: brightness(1.08);
  color: var(--navy) !important;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

.nav__toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.open span:nth-child(2) { opacity: 0; }
.nav__toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 5rem;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 60% 30%, rgba(56, 182, 245, 0.12) 0%, transparent 60%),
              radial-gradient(ellipse 50% 50% at 10% 80%, rgba(30, 142, 201, 0.08) 0%, transparent 50%),
              linear-gradient(175deg, #0d1b2a 0%, #061120 100%);
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(56, 182, 245, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 182, 245, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 20%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 20%, transparent 80%);
}

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.hero__orb--1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(56, 182, 245, 0.18), transparent 70%);
  top: -100px;
  right: -100px;
}

.hero__orb--2 {
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(30, 142, 201, 0.12), transparent 70%);
  bottom: 50px;
  left: -80px;
}

.hero__drone {
  position: absolute;
  top: 18%;
  right: 8%;
  width: clamp(180px, 25vw, 340px);
  opacity: 0.55;
  animation: dronefloat 6s ease-in-out infinite;
  pointer-events: none;
  filter: drop-shadow(0 0 24px rgba(56, 182, 245, 0.3));
}

@keyframes dronefloat {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50%       { transform: translateY(-18px) rotate(2deg); }
}

.hero__content {
  position: relative;
  z-index: 2;
  padding-block: clamp(3rem, 6vw, 6rem);
  max-width: 700px;
}

.hero__eyebrow {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--sky);
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.hero__eyebrow::before {
  content: '';
  display: inline-block;
  width: 28px;
  height: 2px;
  background: var(--sky);
  border-radius: 2px;
}

.hero__heading {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(2.6rem, 6vw, 4.8rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

.hero__heading > span {
  display: block;
}

.hero__heading-accent {
  background: linear-gradient(135deg, var(--sky) 0%, #7dd8ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__sub {
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  color: var(--text-muted);
  line-height: 1.75;
  max-width: 580px;
  margin-bottom: 2.5rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3.5rem;
}

.hero__stats {
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
}

.hero__stat {
  display: flex;
  flex-direction: column;
  padding-inline: 2rem;
}

.hero__stat:first-child { padding-left: 0; }

.hero__stat-num {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--sky);
  line-height: 1;
}

.hero__stat-label {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 0.25rem;
}

.hero__stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  z-index: 2;
}

.hero__scroll span {
  display: block;
  width: 20px;
  height: 32px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  position: relative;
}

.hero__scroll span::after {
  content: '';
  display: block;
  width: 4px;
  height: 8px;
  background: var(--sky);
  border-radius: 4px;
  position: absolute;
  top: 5px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrolldot 1.8s ease-in-out infinite;
}

@keyframes scrolldot {
  0%, 100% { opacity: 1; top: 5px; }
  50%       { opacity: 0.3; top: 14px; }
}

/* ---------- Services ---------- */
.services { background: var(--navy-mid); }

.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
  gap: 1.5rem;
}

.service-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--sky-glow) 0%, transparent 60%);
  opacity: 0;
  transition: var(--transition);
}

.service-card:hover {
  border-color: rgba(56, 182, 245, 0.45);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

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

.service-card--highlight {
  border-color: rgba(56, 182, 245, 0.35);
  background: linear-gradient(135deg, rgba(26, 51, 80, 0.8), rgba(13, 27, 42, 0.8));
}

.service-card__icon {
  width: 52px;
  height: 52px;
  margin-bottom: 1.25rem;
  position: relative;
  z-index: 1;
}

.service-card__icon svg { width: 100%; height: 100%; }

.service-card__title {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  position: relative;
  z-index: 1;
}

.service-card__desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}

.service-card__list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  position: relative;
  z-index: 1;
}

.service-card__list li {
  font-size: 0.82rem;
  color: var(--text-muted);
  padding-left: 1.1rem;
  position: relative;
}

.service-card__list li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--sky);
  font-size: 1rem;
  line-height: 1.4;
}

/* ---------- Pricing ---------- */
.pricing {
  background: var(--navy);
}

.pricing__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 290px), 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
  align-items: start;
}

.pricing-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  position: relative;
  transition: var(--transition);
}

.pricing-card:hover {
  border-color: rgba(56, 182, 245, 0.45);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.pricing-card--featured {
  border-color: var(--sky);
  background: linear-gradient(160deg, rgba(56, 182, 245, 0.12), rgba(13, 27, 42, 0.9));
  transform: scale(1.03);
}

.pricing-card--featured:hover {
  transform: scale(1.03) translateY(-4px);
}

.pricing-card__badge {
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--sky), var(--sky-dark));
  color: var(--navy);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.3rem 1rem;
  border-radius: 0 0 8px 8px;
  white-space: nowrap;
}

.pricing-card__header {
  margin-bottom: 1.75rem;
  padding-top: 0.5rem;
}

.pricing-card__name {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.pricing-card__price {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(2.8rem, 5vw, 3.4rem);
  font-weight: 800;
  line-height: 1;
  margin-bottom: 0.4rem;
}

.pricing-card__currency {
  font-size: 1.4rem;
  vertical-align: top;
  margin-top: 0.6rem;
  display: inline-block;
  color: var(--sky);
}

.pricing-card__tagline {
  color: var(--text-muted);
  font-size: 0.82rem;
}

.pricing-card__features {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 2rem;
}

.pricing-card__features li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.88rem;
}

.pricing-card__features li.muted {
  opacity: 0.38;
}

.check {
  color: var(--sky);
  font-size: 0.9rem;
  flex-shrink: 0;
  font-weight: 700;
}

.cross {
  color: var(--text-muted);
  font-size: 0.9rem;
  flex-shrink: 0;
}

/* Specialty cards */
.pricing__specialty {
  margin-bottom: 2.5rem;
}

.pricing__specialty-title {
  font-family: 'Montserrat', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.pricing__specialty-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: 1.25rem;
}

.specialty-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: var(--transition);
}

.specialty-card:hover {
  border-color: rgba(56, 182, 245, 0.45);
  transform: translateY(-2px);
}

.specialty-card__icon {
  font-size: 1.6rem;
  color: var(--sky);
  flex-shrink: 0;
  width: 40px;
  text-align: center;
}

.specialty-card__body { flex: 1; }

.specialty-card__name {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}

.specialty-card__desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.specialty-card__price {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--sky);
  white-space: nowrap;
  flex-shrink: 0;
}

/* Add-ons */
.pricing__addons {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.pricing__addons-title {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  white-space: nowrap;
}

.pricing__addons-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.addon-tag {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--sky);
  background: rgba(56, 182, 245, 0.1);
  border: 1px solid rgba(56, 182, 245, 0.25);
  padding: 0.3rem 0.85rem;
  border-radius: 50px;
}

/* ---------- FAQ ---------- */
.faq { background: var(--navy-mid); }

.faq__container { max-width: 800px; }

.faq__list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq__item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: border-color var(--transition);
}

.faq__item.open {
  border-color: rgba(56, 182, 245, 0.4);
}

.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.35rem 1.75rem;
  text-align: left;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
  transition: color var(--transition);
}

.faq__question:hover { color: var(--sky); }

.faq__icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border: 1.5px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  position: relative;
  transition: var(--transition);
}

.faq__icon::before,
.faq__icon::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--sky);
  border-radius: 2px;
  transition: var(--transition);
}

.faq__icon::before {
  width: 10px;
  height: 1.5px;
  transform: translate(-50%, -50%);
}

.faq__icon::after {
  width: 1.5px;
  height: 10px;
  transform: translate(-50%, -50%);
}

.faq__item.open .faq__icon {
  border-color: var(--sky);
  background: var(--sky-glow);
}

.faq__item.open .faq__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.38s cubic-bezier(0.4, 0, 0.2, 1), padding 0.28s;
}

.faq__item.open .faq__answer {
  max-height: 400px;
}

.faq__answer p {
  padding: 0 1.75rem 1.5rem;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.75;
}

.faq__answer strong { color: var(--white); }

/* ---------- Contact ---------- */
.contact { background: var(--navy); }

.contact__container {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.contact__title {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.contact__sub {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 2rem;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.contact__details li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.contact__details a:hover { color: var(--sky); }

.contact__detail-icon {
  color: var(--sky);
  font-size: 0.65rem;
  flex-shrink: 0;
}

/* Form */
.contact__form {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 3vw, 2.5rem);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.form__row .form__group { margin-bottom: 0; }

.form__label {
  font-size: 0.78rem;
  font-weight: 600;
  font-family: 'Montserrat', sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
}

.req { color: var(--sky); }

.form__input,
.form__select,
.form__textarea {
  background: rgba(13, 27, 42, 0.7);
  border: 1.5px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 0.8rem 1rem;
  color: var(--white);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}

.form__select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238ba4bc' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form__input::placeholder,
.form__textarea::placeholder { color: rgba(139, 164, 188, 0.5); }

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  border-color: var(--sky);
  box-shadow: 0 0 0 3px rgba(56, 182, 245, 0.12);
}

.form__textarea { resize: vertical; min-height: 110px; }

.form__footer { display: flex; flex-direction: column; gap: 0.75rem; }

.form__note {
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Submit spinner */
.btn__spinner {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(13, 27, 42, 0.4);
  border-top-color: var(--navy);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.btn--loading .btn__text { opacity: 0.6; }
.btn--loading .btn__spinner { display: block; }

@keyframes spin { to { transform: rotate(360deg); } }

.form__success,
.form__error {
  display: none;
  text-align: center;
  padding: 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  margin-top: 0.5rem;
}

.form__success {
  background: rgba(56, 182, 245, 0.1);
  border: 1px solid rgba(56, 182, 245, 0.3);
  color: var(--sky);
}

.form__success-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--sky);
  color: var(--navy);
  font-size: 0.75rem;
  font-weight: 700;
  margin-right: 0.5rem;
}

.form__error {
  background: rgba(245, 90, 90, 0.1);
  border: 1px solid rgba(245, 90, 90, 0.3);
  color: #f57070;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--navy-mid);
  border-top: 1px solid var(--border);
  padding-block: 3rem 2rem;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 2rem;
}

.footer__brand { display: flex; flex-direction: column; gap: 0.5rem; }

.footer__logo { font-size: 1.1rem; }

.footer__tagline {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-top: 0.25rem;
}

.footer__nav ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
}

.footer__nav a {
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer__nav a:hover { color: var(--sky); }

.footer__legal {
  text-align: right;
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 960px) {
  .contact__container {
    grid-template-columns: 1fr;
  }

  .footer__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer__legal { text-align: center; }
  .footer__nav ul { flex-direction: row; flex-wrap: wrap; justify-content: center; }
}

@media (max-width: 768px) {
  .nav__links {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(320px, 85vw);
    background: rgba(10, 20, 32, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    border-left: 1px solid var(--border);
    z-index: 800;
  }

  .nav__links.open { transform: translateX(0); }

  .nav__links a {
    font-size: 1.1rem;
    color: var(--white);
  }

  .nav__toggle { display: flex; z-index: 901; }

  .hero__drone { opacity: 0.3; top: 10%; right: 2%; width: 160px; }

  .pricing-card--featured { transform: scale(1); }
  .pricing-card--featured:hover { transform: translateY(-4px); }

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

@media (max-width: 520px) {
  .hero__stats { gap: 1rem; flex-direction: row; }
  .hero__stat { padding-inline: 0.75rem; }
  .hero__stat:first-child { padding-left: 0; }
}

/* ---------- Language Switcher ---------- */
.nav__lang-item {
  display: flex;
  align-items: center;
}

.lang-switcher {
  display: flex;
  align-items: center;
  gap: 2px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 3px;
}

.lang-btn {
  padding: 0.28rem 0.65rem;
  border-radius: 50px;
  font-size: 0.72rem;
  font-weight: 700;
  font-family: 'Montserrat', sans-serif;
  color: var(--text-muted);
  transition: var(--transition);
  letter-spacing: 0.03em;
  white-space: nowrap;
  line-height: 1.4;
}

.lang-btn:hover { color: var(--white); }

.lang-btn.active {
  background: linear-gradient(135deg, var(--sky), var(--sky-dark));
  color: var(--navy);
}

@media (max-width: 768px) {
  .nav__lang-item {
    justify-content: center;
    padding-top: 1.25rem;
    margin-top: 0.5rem;
    border-top: 1px solid var(--border);
    width: 100%;
  }

  .lang-btn {
    font-size: 0.88rem;
    padding: 0.4rem 1rem;
  }
}

/* ---------- Scrollbar (optional styling) ---------- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--navy); }
::-webkit-scrollbar-thumb { background: var(--navy-light); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--sky-dark); }

/* ---------- Selection ---------- */
::selection { background: rgba(56, 182, 245, 0.25); color: var(--white); }