/* ═══════════════════════════════════════════════════════
   SPIRIT CONNECT TECHNOLOGY — Futuristic Dark Theme
   ═══════════════════════════════════════════════════════ */

/* ── Design Tokens ── */
:root {
  --bg: #0f1b2d;
  --bg-alt: #152238;
  --fg: #e2e8f4;
  --muted: #8892ab;
  --brand: #00e5ff;
  --brand-dark: #00b4d8;
  --accent: #7c4dff;
  --card: rgba(18, 30, 58, 0.6);
  --card-solid: #152540;
  --border: rgba(0, 229, 255, 0.1);
  --border-hover: rgba(0, 229, 255, 0.28);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --radius: 16px;
  --maxw: 1200px;
  --nav-bg: rgba(15, 27, 45, 0.88);
  --font-body: 'Space Grotesk', ui-sans-serif, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Space Grotesk', ui-sans-serif, sans-serif;
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; }
html { height: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font-body);
  color: var(--fg);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.02) 1px, transparent 1px);
  background-size: 80px 80px;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  background:
    radial-gradient(ellipse 600px 400px at 15% 30%, rgba(0, 229, 255, 0.06), transparent),
    radial-gradient(ellipse 500px 500px at 85% 60%, rgba(124, 77, 255, 0.05), transparent),
    radial-gradient(ellipse 700px 300px at 50% 90%, rgba(0, 229, 255, 0.04), transparent);
  animation: drift 30s ease-in-out infinite alternate;
}

@keyframes drift {
  0%   { opacity: .6; transform: scale(1); }
  50%  { opacity: 1;  transform: scale(1.08) translateY(-20px); }
  100% { opacity: .7; transform: scale(1.03) translateY(10px); }
}

a { color: var(--brand); transition: color .2s ease; }
a:hover { color: #5ef5ff; text-decoration: underline; }
img { max-width: 100%; height: auto; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: #fff;
  margin-top: 0;
}

.container { width: min(92%, var(--maxw)); margin-inline: auto; }

::selection { background: rgba(0, 229, 255, 0.2); color: #fff; }
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: rgba(0, 229, 255, 0.12); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(0, 229, 255, 0.25); }


/* ── Navigation ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.15), transparent);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 1rem 0; gap: 1rem; flex-wrap: wrap; }
.nav-left { display: flex; align-items: center; gap: 1rem 1.25rem; flex-wrap: wrap; min-width: 0; }
.lang-switch { display: flex; align-items: center; gap: 0.35rem; font-size: 0.9rem; flex-shrink: 0; }
.lang-switch a { font-weight: 600; opacity: 0.72; text-decoration: none; color: inherit; }
.lang-switch a:hover { opacity: 1; color: var(--brand); }
.lang-switch a.lang-active { opacity: 1; color: var(--brand); }
.lang-switch span { opacity: 0.45; user-select: none; }
.brand {
  display: flex; align-items: center; gap: .6rem;
  font-weight: 700; color: #fff; font-size: 1.1rem;
  font-family: var(--font-display); text-decoration: none;
}
.brand:hover { color: var(--brand); text-decoration: none; }
.brand img { height: 40px; width: auto; }
.menu { display: flex; align-items: center; gap: 1.5rem; }
.nav a, .drop-toggle { color: rgba(255,255,255,.75); font-weight: 500; text-decoration: none; font-size: .95rem; transition: color .2s; }
.nav a:hover, .drop-toggle:hover { color: var(--brand); text-decoration: none; }

.menu > a:not(.cta) { position: relative; }
.menu > a:not(.cta)::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--brand);
  box-shadow: 0 0 8px rgba(0, 229, 255, 0.4);
  border-radius: 1px;
  transition: width .3s ease;
}
.menu > a:not(.cta):hover::after { width: 100%; }

.cta {
  display: inline-block;
  padding: .65rem 1.4rem;
  border-radius: 999px;
  background: var(--brand);
  color: var(--bg) !important;
  font-weight: 700;
  font-family: var(--font-display);
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.25);
  transition: all .25s ease;
  text-decoration: none;
  animation: pulse-glow 3s ease-in-out infinite;
}
.cta:hover {
  background: #5ef5ff;
  box-shadow: 0 0 28px rgba(0, 229, 255, 0.45);
  transform: translateY(-1px);
  text-decoration: none;
}
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 16px rgba(0, 229, 255, 0.2); }
  50%      { box-shadow: 0 0 24px rgba(0, 229, 255, 0.35); }
}


/* ── Dropdown ── */
.dropdown { position: relative; }
.drop-toggle {
  background: transparent; border: 0; padding: .4rem 0;
  cursor: pointer; font: inherit; font-weight: 500;
  display: flex; align-items: center; gap: .3rem;
}
.drop-menu {
  position: absolute; top: 100%; left: 0; min-width: 240px;
  background: rgba(18, 28, 52, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  border-radius: 12px; padding: .6rem;
  display: none; z-index: 999; margin-top: .5rem;
}
.drop-menu a {
  display: block; padding: .7rem 1rem; border-radius: 8px;
  color: rgba(255,255,255,.75); white-space: nowrap; transition: all .2s;
}
.drop-menu a:hover {
  background: rgba(0, 229, 255, 0.06);
  color: var(--brand); text-decoration: none;
}

@media(min-width:881px) {
  .dropdown:hover .drop-menu, .dropdown:focus-within .drop-menu { display: block; }
  .drop-menu::before { content: ''; position: absolute; left: 0; right: 0; top: -8px; height: 8px; }
}

.hamburger { display: none; background: transparent; border: 0; cursor: pointer; padding: .5rem; }
.hamburger span { display: block; width: 24px; height: 2px; background: rgba(255,255,255,.8); margin: 5px 0; transition: all .3s; border-radius: 2px; }

@media(max-width:880px) {
  .hamburger { display: block; }
  .menu {
    position: absolute; right: 0; top: 100%;
    background: rgba(15, 27, 45, 0.97);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    box-shadow: 0 20px 50px rgba(0,0,0,.5);
    border-radius: 0 0 0 16px; padding: 1.5rem;
    width: min(92vw, 340px);
    display: none; flex-direction: column; align-items: stretch; gap: .5rem;
  }
  .dropdown .drop-menu {
    position: static; display: none;
    background: transparent; box-shadow: none;
    margin: .5rem 0 0; border: none;
    backdrop-filter: none; -webkit-backdrop-filter: none;
  }
  .dropdown.open .drop-menu { display: block; }
  .menu.open { display: flex; }
  .menu > a:not(.cta)::after { display: none; }
}

.drop-toggle:focus, .menu a:focus { outline: 2px solid var(--brand); outline-offset: 2px; }


/* ── Hero ── */
.hero {
  position: relative;
  overflow: hidden;
  padding: 8rem 0 6rem;
  text-align: center;
}
.hero .bg {
  position: absolute;
  inset: -40% -30%;
  z-index: -1;
  background:
    radial-gradient(40% 50% at 25% 35%, rgba(0, 229, 255, 0.14), transparent 60%),
    radial-gradient(45% 55% at 75% 25%, rgba(124, 77, 255, 0.1), transparent 60%),
    radial-gradient(50% 50% at 50% 85%, rgba(0, 229, 255, 0.08), transparent 55%);
  filter: blur(50px);
  animation: aurora 20s ease-in-out infinite;
}
@keyframes aurora {
  0%, 100% { transform: translateY(0) scale(1) rotate(0deg); }
  33%      { transform: translateY(-15px) scale(1.04) rotate(1deg); }
  66%      { transform: translateY(10px) scale(1.02) rotate(-0.5deg); }
}

.hero h1 {
  font-size: clamp(2.5rem, 7vw, 4rem);
  margin: 0 0 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-shadow: 0 0 40px rgba(0, 229, 255, 0.2);
}
.badge {
  display: inline-block;
  padding: .5rem 1.2rem;
  background: rgba(0, 229, 255, 0.06);
  border: 1px solid rgba(0, 229, 255, 0.18);
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 600;
  color: var(--brand);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-family: var(--font-display);
}
.hero p, .hero .lead {
  max-width: 800px;
  margin: 0 auto 2rem;
  color: var(--muted);
  font-size: 1.15rem;
  line-height: 1.7;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; justify-content: center; }


/* ── Buttons ── */
.btn {
  display: inline-block;
  border-radius: 12px;
  padding: .9rem 2rem;
  font-weight: 600;
  font-family: var(--font-display);
  border: 1px solid transparent;
  text-decoration: none;
  transition: all .3s ease;
  font-size: 1rem;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,.1) 50%, transparent 60%);
  transform: translateX(-200%);
  transition: transform .6s ease;
}
.btn:hover::after { transform: translateX(200%); }

.btn-primary {
  background: linear-gradient(135deg, var(--brand) 0%, #00b4d8 100%);
  color: var(--bg);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.2), 0 4px 16px rgba(0, 0, 0, 0.2);
}
.btn-primary:hover {
  box-shadow: 0 0 32px rgba(0, 229, 255, 0.35), 0 8px 24px rgba(0, 0, 0, 0.3);
  transform: translateY(-2px);
  text-decoration: none;
  color: var(--bg);
}
.btn-ghost {
  background: rgba(255,255,255, .04);
  color: var(--fg);
  border: 1px solid rgba(255,255,255, .12);
  backdrop-filter: blur(4px);
}
.btn-ghost:hover {
  background: rgba(0, 229, 255, 0.06);
  border-color: rgba(0, 229, 255, 0.3);
  color: var(--brand);
  transform: translateY(-2px);
  text-decoration: none;
}
.btn-large { padding: 1.1rem 2.5rem; font-size: 1.1rem; }


/* ── Sections ── */
.section { padding: 5rem 0; }
.section-header { text-align: center; margin-bottom: 3rem; }
.section-badge {
  display: inline-block;
  padding: .4rem .9rem;
  background: rgba(0, 229, 255, 0.05);
  border: 1px solid rgba(0, 229, 255, 0.12);
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 600;
  color: var(--brand);
  text-transform: uppercase;
  letter-spacing: .12em;
  margin-bottom: 1rem;
  font-family: var(--font-display);
}
.section h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin: 0 0 1.5rem;
  letter-spacing: -0.01em;
}
.lead { color: var(--muted); max-width: 780px; font-size: 1.1rem; line-height: 1.7; }
.section-header .lead { margin: 0 auto; }

.section-featured {
  background: linear-gradient(180deg, var(--bg) 0%, rgba(10, 18, 48, 0.4) 50%, var(--bg) 100%);
  position: relative;
}
.section-featured::before {
  content: '';
  position: absolute;
  top: 0;
  left: 15%;
  right: 15%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.1), transparent);
}
.section-featured .section-header { margin-bottom: 4rem; }


/* ── Grid & Cards ── */
.grid { display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
@media(min-width:720px)  { .grid { grid-template-columns: repeat(2, 1fr); } }
@media(min-width:1024px) { .grid { grid-template-columns: repeat(3, 1fr); } }
.grid-featured { grid-template-columns: 1fr; }
@media(min-width:768px)  { .grid-featured { grid-template-columns: repeat(3, 1fr); } }

.card {
  background: var(--card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: all .35s ease;
}
.card:hover {
  transform: translateY(-6px);
  border-color: var(--border-hover);
  box-shadow:
    0 0 0 1px rgba(0, 229, 255, 0.05),
    inset 0 1px 0 rgba(0, 229, 255, 0.06),
    0 20px 50px rgba(0, 0, 0, 0.3);
}
.card h3 { margin: 0 0 .75rem; font-size: 1.25rem; font-weight: 600; }
.card p  { color: var(--muted); margin: 0 0 1rem; line-height: 1.65; }
.card-featured { text-align: center; padding: 2.5rem 2rem; }
.card-icon { font-size: 3rem; margin-bottom: 1rem; display: block; }
.card-link {
  color: var(--brand);
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin-top: 1rem;
  font-family: var(--font-display);
  transition: all .25s ease;
}
.card-link:hover {
  color: #5ef5ff;
  text-decoration: none;
  gap: .8rem;
  text-shadow: 0 0 12px rgba(0, 229, 255, 0.3);
}


/* ── Case Study Section ── */
.section-case-study {
  background: linear-gradient(135deg, #111d35 0%, #162444 50%, #132038 100%);
  color: #fff;
  padding: 6rem 0;
  position: relative;
}
.section-case-study::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.2), transparent);
}
.section-case-study::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(124, 77, 255, 0.2), transparent);
}
.section-case-study .lead { color: rgba(255,255,255,.7); }
.section-case-study .section-badge {
  background: rgba(255,255,255,.05);
  color: var(--brand);
  border-color: rgba(0, 229, 255, 0.15);
}
.case-study-content { display: grid; gap: 4rem; align-items: center; }
@media(min-width:968px) { .case-study-content { grid-template-columns: 1.2fr 1fr; } }
.case-study-text h2 { color: #fff; margin-bottom: 1.5rem; }
.case-study-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 2rem; }
.case-study-actions .btn-ghost {
  background: rgba(255,255,255,.05);
  color: #fff;
  border-color: rgba(255,255,255,.12);
}
.case-study-actions .btn-ghost:hover {
  background: rgba(0, 229, 255, 0.08);
  color: var(--brand);
  border-color: rgba(0, 229, 255, 0.3);
}

.visual-placeholder {
  background: rgba(0, 229, 255, 0.02);
  border: 1px solid rgba(0, 229, 255, 0.08);
  border-radius: var(--radius);
  padding: 3rem 2rem;
  text-align: center;
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.visual-icon { font-size: 5rem; opacity: .3; }


/* ── Solution Section ── */
.section-solution {
  background: rgba(10, 18, 48, 0.3);
  padding: 6rem 0;
  position: relative;
}
.section-solution::before {
  content: '';
  position: absolute;
  top: 0; left: 10%; right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(124, 77, 255, 0.12), transparent);
}
.solution-content { display: grid; gap: 4rem; align-items: center; }
@media(min-width:968px) { .solution-content { grid-template-columns: 1fr 1.2fr; } }
.solution-visual .visual-placeholder {
  background: rgba(0, 229, 255, 0.02);
  border: 1px solid rgba(0, 229, 255, 0.08);
  min-height: 350px;
}
.solution-visual .visual-icon { color: var(--brand); opacity: .2; }


/* ── CTA Section ── */
.section-cta {
  text-align: center;
  padding: 6rem 0;
  position: relative;
  background: radial-gradient(ellipse 80% 60% at 50% 50%, rgba(0, 229, 255, 0.05), transparent);
}
.section-cta::before {
  content: '';
  position: absolute;
  top: 0; left: 10%; right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.2), transparent);
}
.section-cta h2 { color: #fff; margin-bottom: 1.5rem; }
.section-cta .lead { color: var(--muted); max-width: 700px; margin: 0 auto 2.5rem; }
.section-cta .btn-primary {
  background: linear-gradient(135deg, var(--brand) 0%, var(--accent) 100%);
  color: #fff;
  box-shadow: 0 0 30px rgba(0, 229, 255, 0.15), 0 0 60px rgba(124, 77, 255, 0.08);
}
.section-cta .btn-primary:hover {
  box-shadow: 0 0 40px rgba(0, 229, 255, 0.3), 0 0 80px rgba(124, 77, 255, 0.12);
  color: #fff;
}


/* ── Footer ── */
.footer {
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, var(--bg) 0%, #0a1220 100%);
  padding: 3.5rem 0 2rem;
  color: var(--muted);
  font-size: .95rem;
  position: relative;
}
.footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.1), transparent);
}
.footer a { color: rgba(255,255,255,.55); text-decoration: none; transition: color .2s; }
.footer a:hover { color: var(--brand); text-decoration: none; }
.footer .cols { display: grid; gap: 2rem; grid-template-columns: 1fr; }
@media(min-width:800px) { .footer .cols { grid-template-columns: 2fr 1fr 1fr 1fr; } }
.footer .brand { color: #fff; }
.footer .brand img { height: 60px; }
.footer strong {
  display: block; color: #fff; font-weight: 600;
  margin-bottom: .75rem; font-size: 1rem;
  font-family: var(--font-display);
}
.small { font-size: .9rem; color: var(--muted); line-height: 1.8; }
.small a { color: var(--muted); }
.small a:hover { color: var(--brand); }


/* ── Tables ── */
table { border-collapse: collapse; width: 100%; }
th { font-family: var(--font-display); text-align: left; }
td { color: var(--fg); }


/* ── Markdown Content ── */
ul, ol { color: var(--muted); padding-left: 1.5rem; }
li { margin-bottom: .5rem; }
strong { color: var(--fg); }
p { color: var(--muted); line-height: 1.65; }
.hero p, .card p, .lead { color: var(--muted); }


/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s cubic-bezier(.22, 1, .36, 1), transform .7s cubic-bezier(.22, 1, .36, 1);
}
.revealed {
  opacity: 1;
  transform: translateY(0);
}


/* ── Responsive ── */
@media(max-width:600px) {
  .hero { padding: 5rem 0 4rem; }
  .hero h1 { font-size: 2rem; }
  .section { padding: 3.5rem 0; }
  .section-case-study, .section-solution { padding: 4rem 0; }
  .card { padding: 1.5rem; }
  .btn-large { padding: .9rem 2rem; font-size: 1rem; }
}