/* ================================================================
   Pipistrel Cloud – Stylesheet
  Design system: Pipistrel palette, clear surfaces, 5-degree motif
   ================================================================ */

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

:root {
  /* Pipistrel 2026 brand palette */
  --clr-bg:          #F6F7F7;
  --clr-bg-2:        #FFFFFF;
  --clr-surface:     #FFFFFF;
  --clr-border:      rgba(40, 44, 48, 0.14);
  --clr-border-h:    rgba(38, 170, 225, 0.7);
  --clr-blue:        #003E70;
  --clr-cyan:        #26AAE1;
  --clr-industrial:  #566D79;
  --clr-depths:      #282C30;
  --clr-stone:       #A7A9AC;
  --clr-white:       #FFFFFF;
  --clr-text:        var(--clr-depths);
  --clr-muted:       var(--clr-industrial);
  --clr-muted-l:     var(--clr-industrial);

  /* Typography */
  --font-sans:  'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Condor', var(--font-sans);
  --fw-light:   300;
  --fw-regular: 400;
  --fw-medium:  500;
  --fw-semi:    600;
  --fw-bold:    700;
  --fw-xbold:   800;

  /* Spacing */
  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  1.5rem;
  --space-lg:  2.5rem;
  --space-xl:  4rem;
  --space-2xl: 7rem;

  /* Sizes */
  --max-width: 1200px;
  --nav-h: 68px;
  --radius-sm: 8px;
  --radius-md: 8px;
  --radius-lg: 8px;

  /* Transitions */
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast:   160ms;
  --dur-normal: 280ms;
  --dur-slow:   480ms;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--clr-text);
  background-color: var(--clr-bg);
  min-height: 100dvh;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a   { color: inherit; text-decoration: none; }

/* ── Utilities ───────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

.gradient-text {
  color: var(--clr-cyan);
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: var(--fw-semi);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-blue);
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: var(--fw-xbold);
  line-height: 1.2;
  color: var(--clr-text);
  margin-bottom: var(--space-sm);
}

.section-desc {
  font-size: 1.0625rem;
  color: var(--clr-muted-l);
  max-width: 52ch;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-header .section-desc {
  margin-inline: auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  font-size: 0.9375rem;
  font-weight: var(--fw-semi);
  transition: transform var(--dur-normal) var(--ease-out),
              box-shadow var(--dur-normal) var(--ease-out),
              background var(--dur-normal) var(--ease);
  cursor: pointer;
  border: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--clr-blue);
  color: var(--clr-white);
  box-shadow: 0 3px 12px rgba(0, 62, 112, 0.18);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 16px rgba(0, 62, 112, 0.24);
}

.btn--ghost {
  background: transparent;
  color: var(--clr-white);
  border: 1px solid rgba(255, 255, 255, 0.55);
}
.btn--ghost:hover {
  background: rgba(255,255,255,0.12);
  color: var(--clr-white);
  border-color: var(--clr-white);
  transform: translateY(-2px);
}

.btn--outline {
  background: transparent;
  color: var(--clr-blue);
  border: 1px solid var(--clr-blue);
}
.btn--outline:hover {
  background: rgba(38, 170, 225, 0.1);
  border-color: var(--clr-cyan);
  transform: translateY(-2px);
}

/* ── Scroll-reveal animation ─────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Hero entry animations */
.animate-fade-up {
  opacity: 0;
  transform: translateY(24px);
  animation: fadeUp 0.7s var(--ease-out) forwards;
}
.animate-fade-up:nth-child(1) { animation-delay: 0.1s; }
.animate-fade-up:nth-child(2) { animation-delay: 0.22s; }
.animate-fade-up:nth-child(3) { animation-delay: 0.34s; }
.animate-fade-up:nth-child(4) { animation-delay: 0.46s; }

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

/* ── Navigation ──────────────────────────────────────────────── */
.nav {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background var(--dur-normal) var(--ease),
              border-color var(--dur-normal) var(--ease),
              backdrop-filter var(--dur-normal) var(--ease);
  background: var(--clr-white);
  border-bottom: 1px solid var(--clr-border);
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-color: var(--clr-border);
}

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

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  transition: opacity var(--dur-fast) var(--ease);
}
.nav__logo:hover { opacity: 0.85; }

.nav__logo-img   { height: 36px; width: auto; object-fit: contain; }
.nav__logo-fallback {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: var(--fw-bold);
  font-size: 1.05rem;
  letter-spacing: 0;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__link {
  font-size: 0.9rem;
  font-weight: var(--fw-medium);
  color: var(--clr-blue);
  transition: color var(--dur-fast) var(--ease);
}
.nav__link:hover { color: var(--clr-depths); }

.nav__link--cta {
  padding: 0.45rem 1.1rem;
  border-radius: 50px;
  background: var(--clr-cyan);
  color: var(--clr-depths);
  font-weight: var(--fw-semi);
  box-shadow: none;
}
.nav__link--cta:hover {
  box-shadow: 0 3px 12px rgba(0,0,0,0.16);
  transform: translateY(-1px);
  color: var(--clr-depths);
}

/* Burger */
.nav__burger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav__burger span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--clr-text);
  transition: transform var(--dur-normal) var(--ease),
              opacity var(--dur-normal) var(--ease);
}
.nav__burger.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  inset-block-start: var(--nav-h);
  inset-inline: 0;
  z-index: 99;
  flex-direction: column;
  padding: var(--space-md);
  background: var(--clr-white);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--clr-border);
  gap: var(--space-xs);
  transform: translateY(-8px);
  opacity: 0;
  transition: transform var(--dur-normal) var(--ease-out),
              opacity var(--dur-normal) var(--ease-out);
}
.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
}
.mobile-menu__link {
  display: block;
  padding: 0.75rem 1rem;
  font-size: 1.0625rem;
  font-weight: var(--fw-medium);
  color: var(--clr-blue);
  border-radius: var(--radius-sm);
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.mobile-menu__link:hover {
  background: var(--clr-bg);
  color: var(--clr-depths);
}

/* ── Hero ────────────────────────────────────────────────────── */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  padding-block-start: var(--nav-h);
  overflow: hidden;
  isolation: isolate;
  background: var(--clr-blue);
  color: var(--clr-white);
}

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

/* The brand's 5-degree line motif */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    175deg,
    transparent 0 118px,
    rgba(38, 170, 225, 0.13) 119px,
    transparent 120px 220px
  );
  pointer-events: none;
  z-index: -1;
}

.hero__content {
  text-align: center;
  padding-block: var(--space-2xl) var(--space-xl);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  border-radius: 50px;
  border: 1px solid rgba(38,170,225,0.55);
  background: rgba(38,170,225,0.12);
  font-size: 0.75rem;
  font-weight: var(--fw-semi);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-white);
  margin-bottom: var(--space-md);
}
.hero__badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--clr-cyan);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.7); }
}

.hero__heading {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: var(--fw-xbold);
  line-height: 1.08;
  letter-spacing: 0;
  margin-bottom: var(--space-md);
}

.hero__sub {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  color: rgba(255,255,255,0.86);
  max-width: 54ch;
  margin-inline: auto;
  margin-bottom: var(--space-lg);
  font-weight: var(--fw-light);
}

.hero__actions {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}
.hero .btn--primary {
  background: var(--clr-cyan);
  color: var(--clr-depths);
  box-shadow: none;
}
.hero .btn--primary:hover {
  background: var(--clr-white);
  box-shadow: none;
}

/* Scroll hint caret */
.hero__scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 40px;
  border: 2px solid rgba(255,255,255,0.4);
  border-radius: 50px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}
.hero__scroll-hint span {
  width: 3px;
  height: 8px;
  background: rgba(255,255,255,0.8);
  border-radius: 2px;
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%   { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(12px); opacity: 0; }
}

/* ── Services ────────────────────────────────────────────────── */
.services {
  padding-block: var(--space-2xl);
  position: relative;
  background: var(--clr-bg);
}
.services::before {
  content: '';
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--clr-border), transparent);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

/* Service card */
.service-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  padding: var(--space-lg) var(--space-md);
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  text-decoration: none;
  color: var(--clr-text);
  transition: border-color var(--dur-normal) var(--ease),
              transform var(--dur-normal) var(--ease-out),
              box-shadow var(--dur-normal) var(--ease);
}
.service-card:hover {
  border-color: var(--clr-border-h);
  transform: translateY(-5px);
  box-shadow: 0 10px 24px rgba(40,44,48,0.12);
}
.service-card:hover .service-card__glow {
  opacity: 1;
}
.service-card:hover .service-card__enter {
  opacity: 1;
  transform: translateX(0);
}

/* Glow accent (top-left corner) */
.service-card__glow {
  position: absolute;
  top: -40px;
  left: -40px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: transparent;
  opacity: 0;
  transition: opacity var(--dur-normal) var(--ease);
  pointer-events: none;
}

.service-card__icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.service-card__body { flex: 1; }
.service-card__title {
  font-size: 1.0625rem;
  font-weight: var(--fw-semi);
  margin-bottom: 0.5rem;
}
.service-card__desc {
  font-size: 0.9rem;
  color: var(--clr-muted-l);
  line-height: 1.6;
}

.service-card__enter {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.875rem;
  font-weight: var(--fw-semi);
  color: var(--clr-blue);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity var(--dur-normal) var(--ease),
              transform var(--dur-normal) var(--ease-out);
}

/* Stagger reveal delays */
.reveal[data-delay="100"] { transition-delay: 100ms; }
.reveal[data-delay="200"] { transition-delay: 200ms; }
.reveal[data-delay="300"] { transition-delay: 300ms; }

/* ── Stats ───────────────────────────────────────────────────── */
.stats {
  padding-block: var(--space-xl);
  border-block: 1px solid var(--clr-border);
  background: var(--clr-blue);
  color: var(--clr-white);
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-lg);
  text-align: center;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.stat__number {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: var(--fw-xbold);
  color: var(--clr-cyan);
  line-height: 1.1;
}
.stat__label {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.82);
  font-weight: var(--fw-medium);
}

/* ── About ───────────────────────────────────────────────────── */
.about {
  padding-block: var(--space-2xl);
}

.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-xl);
}

.about__copy {
  color: var(--clr-muted-l);
  margin-bottom: var(--space-sm);
  line-height: 1.75;
}

.about__text .btn {
  margin-top: var(--space-sm);
}

.about__visual {
  display: flex;
  justify-content: center;
}

.about__shape {
  width: 100%;
  max-width: 420px;
  aspect-ratio: 5 / 4;
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--clr-border);
  box-shadow: 0 8px 28px rgba(0,62,112,0.12);
  background: var(--clr-white);
}
.about__motif {
  position: absolute;
  inset: 12%;
  overflow: hidden;
  background: var(--clr-bg);
}
.about__motif::before,
.about__motif::after {
  content: '';
  position: absolute;
  inset-inline: -10%;
  height: 18%;
  transform: rotate(-5deg);
}
.about__motif::before {
  top: 28%;
  background: var(--clr-blue);
}
.about__motif::after {
  top: 53%;
  background: var(--clr-cyan);
}
.about__motif-bar {
  position: absolute;
  top: 16%;
  bottom: 16%;
  left: 49%;
  width: 2px;
  background: var(--clr-industrial);
  transform: rotate(-5deg);
}

/* ── Contact ─────────────────────────────────────────────────── */
.contact {
  padding-block: var(--space-2xl);
  background: var(--clr-bg-2);
  border-top: 1px solid var(--clr-border);
}

.contact__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  max-width: 860px;
  margin-inline: auto;
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-xs);
  padding: var(--space-lg) var(--space-md);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--dur-normal) var(--ease),
              transform var(--dur-normal) var(--ease-out);
}
.contact-card:hover {
  border-color: var(--clr-border-h);
  transform: translateY(-3px);
}

.contact-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,62,112,0.2);
  border: 1px solid rgba(38,170,225,0.25);
  border-radius: 50%;
  color: var(--clr-blue);
  margin-bottom: 0.25rem;
}

.contact-card__title {
  font-size: 0.9375rem;
  font-weight: var(--fw-semi);
}
.contact-card__info {
  font-size: 0.9rem;
  color: var(--clr-muted-l);
}
.contact-card__info a {
  color: var(--clr-blue);
  transition: color var(--dur-fast) var(--ease);
}
.contact-card__info a:hover { color: #fff; }

/* ── Footer ──────────────────────────────────────────────────── */
.footer {
  padding-block: var(--space-xl);
  border-top: 1px solid var(--clr-border);
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.footer__logo {
  height: 32px;
  width: auto;
  object-fit: contain;
  opacity: 0.75;
}
.footer__tagline {
  font-size: 0.8125rem;
  color: var(--clr-muted);
}

.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}
.footer__link {
  font-size: 0.875rem;
  color: var(--clr-muted-l);
  transition: color var(--dur-fast) var(--ease);
}
.footer__link:hover { color: var(--clr-text); }

.footer__copy {
  width: 100%;
  font-size: 0.8125rem;
  color: var(--clr-muted);
  text-align: center;
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--clr-border);
}

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 900px) {
  .about__inner {
    grid-template-columns: 1fr;
  }
  .about__visual {
    order: -1;
  }
  .about__shape {
    max-width: 340px;
  }
}

@media (max-width: 680px) {
  :root {
    --space-2xl: 4.5rem;
    --space-xl:  2.5rem;
  }

  .nav__links  { display: none; }
  .nav__burger { display: flex; }
  .mobile-menu { display: flex; }

  .hero__heading { letter-spacing: 0; }

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

  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer__copy { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}