/* ==========================================================================
   AstraFlow Digital — Home Page
   Modern glass-panel / sharp-edge theme
   ========================================================================== */

:root {
  --navy: #03081d;
  --navy-2: #071331;
  --text: #f7f9ff;
  --muted: #b7c0db;
  --muted-2: #8b96b8;

  --blue: #0b78ff;
  --cyan: #34d2ff;
  --purple: #8a25ff;
  --violet: #bf40ff;
  --green: #16d7b5;

  --glass-bg: rgba(255, 255, 255, 0.035);
  --glass-bg-strong: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.09);
  --glass-border-hover: rgba(120, 150, 255, 0.45);
  --line: rgba(111, 147, 255, 0.2);

  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 12px;

  --shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
  --gradient-brand: linear-gradient(100deg, var(--blue), var(--purple));
  --gradient-text: linear-gradient(90deg, #fff 0 10%, var(--blue) 45%, var(--purple) 85%);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 88% 0%, rgba(138, 37, 255, 0.22), transparent 32rem),
    radial-gradient(circle at 6% 18%, rgba(11, 120, 255, 0.16), transparent 32rem),
    linear-gradient(180deg, #020617 0%, #06112b 55%, #030817 100%);
  background-attachment: fixed;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-weight: 700;
  margin: 0;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { margin: 0; padding: 0; }

.container { width: min(1200px, calc(100% - 40px)); margin: 0 auto; }

.kicker {
  display: inline-block;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.76rem;
  font-weight: 700;
}

.section-head { max-width: 720px; margin-bottom: 48px; }
.section-head.center { text-align: center; margin-inline: auto; }
.section-head h2 { font-size: clamp(2.1rem, 4vw, 3.4rem); line-height: 1.08; letter-spacing: -0.03em; margin: 12px 0 16px; }
.section-head p { color: var(--muted); font-size: 1.05rem; margin: 0; }

section { padding: 110px 0; position: relative; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 14px 22px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.94rem;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
  white-space: nowrap;
}
.btn svg { width: 17px; height: 17px; }
.btn-primary {
  background: var(--gradient-brand);
  box-shadow: 0 12px 30px rgba(76, 67, 255, 0.32);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 40px rgba(76, 67, 255, 0.45); }
.btn-secondary {
  border-color: var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
}
.btn-secondary:hover { background: var(--glass-bg-strong); border-color: var(--glass-border-hover); }

/* ---------- Glass card base ---------- */
.glass {
  background: linear-gradient(160deg, var(--glass-bg-strong), var(--glass-bg));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  position: relative;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.glass::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity 0.25s ease;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}
.glass:hover { transform: translateY(-6px); border-color: var(--glass-border-hover); box-shadow: var(--shadow); }
.glass:hover::before { opacity: 1; }

/* ==========================================================================
   Navigation
   ========================================================================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  background: rgba(3, 8, 29, 0.35);
  backdrop-filter: blur(14px);
}
.nav.scrolled {
  background: rgba(3, 8, 29, 0.78);
  backdrop-filter: blur(20px) saturate(140%);
  border-color: rgba(255, 255, 255, 0.09);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
}
.nav-inner { height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: "Space Grotesk", sans-serif; font-weight: 700; font-size: 1.28rem; letter-spacing: -0.02em; }
.brand-mark { width: 40px; height: 40px; flex-shrink: 0; }
.brand-mark img { width: 100%; height: 100%; object-fit: contain; }
.brand .accent { background: var(--gradient-text); -webkit-background-clip: text; background-clip: text; color: transparent; }

.nav-links { display: flex; align-items: center; gap: 30px; font-size: 0.94rem; color: #d6dcf0; }
.nav-links a { position: relative; padding: 4px 0; }
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: -2px;
  height: 2px;
  background: var(--gradient-brand);
  transition: right 0.25s ease;
}
.nav-links a:hover { color: white; }
.nav-links a:hover::after,
.nav-links a.active::after { right: 0; }
.nav-links a.active { color: white; }

.nav-cta { display: flex; align-items: center; gap: 14px; }
.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.nav-toggle svg { width: 20px; height: 20px; }

.mobile-panel {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 10px 0 20px;
  border-top: 1px solid rgba(255,255,255,.07);
}
.mobile-panel a {
  padding: 14px 4px;
  border-bottom: 1px solid rgba(255,255,255,.05);
  color: #d6dcf0;
  font-size: 0.98rem;
}
.mobile-panel .btn { margin-top: 14px; }
.mobile-panel.open { display: flex; }

@media (max-width: 940px) {
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero { padding: 90px 0 60px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 60px; align-items: center; }

h1.hero-title {
  font-size: clamp(3rem, 6.6vw, 5.8rem);
  line-height: 0.96;
  letter-spacing: -0.04em;
  margin: 24px 0;
}
.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-copy p.lead { max-width: 620px; color: var(--muted); font-size: 1.13rem; margin: 0 0 32px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 44px; }

.trust-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; background: var(--glass-border); border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--glass-border); }
.trust-item { padding: 16px 14px; background: rgba(8, 16, 40, 0.6); border-left: 2px solid var(--blue); }
.trust-item strong { display: block; font-size: 0.95rem; font-family: "Space Grotesk", sans-serif; }
.trust-item span { color: var(--muted-2); font-size: 0.8rem; }

/* ---- Hero visual: radial constellation ---- */
.hero-visual { position: relative; min-height: 540px; }
.hero-dotgrid {
  position: absolute;
  top: 0; right: 0;
  width: 46%; height: 46%;
  background-image: radial-gradient(circle, rgba(140, 170, 255, 0.35) 1px, transparent 1.4px);
  background-size: 20px 20px;
  mask-image: radial-gradient(circle at top right, black, transparent 75%);
  pointer-events: none;
}
.hero-connectors { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.hero-connectors line { stroke: url(#connectorGradient); stroke-width: 1; vector-effect: non-scaling-stroke; opacity: 0.55; }

.icon-chip {
  position: absolute;
  transform: translate(-50%, -50%);
  width: 54px; height: 54px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  background: linear-gradient(160deg, var(--glass-bg-strong), var(--glass-bg));
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(14px);
  z-index: 3;
  animation: float 5s ease-in-out infinite;
}
.icon-chip svg { width: 22px; height: 22px; stroke: var(--cyan); }
.icon-chip:nth-child(2n) svg { stroke: var(--purple); }
.icon-chip:nth-child(2) { animation-delay: .6s; }
.icon-chip:nth-child(3) { animation-delay: 1.2s; }
.icon-chip:nth-child(4) { animation-delay: 1.8s; }
.icon-chip:nth-child(5) { animation-delay: 2.4s; }

@keyframes float {
  0%, 100% { transform: translate(-50%, -50%) translateY(0); }
  50% { transform: translate(-50%, -50%) translateY(-8px); }
}

.orbit-ring {
  position: absolute;
  left: 66%; top: 48%;
  transform: translate(-50%, -50%);
  width: min(360px, 72%);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid rgba(120, 150, 255, 0.35);
  display: grid;
  place-items: center;
  text-align: center;
  z-index: 2;
  box-shadow: inset 0 0 60px rgba(60, 100, 255, 0.1);
}
.orbit-ring::before {
  content: "";
  position: absolute;
  inset: -22px;
  border-radius: 50%;
  border: 1px dashed rgba(140, 160, 255, 0.18);
  animation: spin 30s linear infinite;
}
.orbit-ring::after {
  content: "";
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(30, 60, 160, 0.35), transparent 70%);
  z-index: -1;
}
@keyframes spin { to { transform: rotate(360deg); } }

.ring-core {
  width: 72%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 30%, #0d1f4a 0%, #060e26 55%, #010308 100%);
  border: 1px solid var(--glass-border);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow), inset 0 1px rgba(255, 255, 255, 0.06);
}
/* City lights — real elements (not a CSS gradient texture) so each dot can pulse
   independently and asynchronously, like scattered lights twinkling at night. Positions,
   sizes, colors, and pulse timing are randomized per dot in js/main.js. */
.earth-lights {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  overflow: hidden;
  mix-blend-mode: screen;
  animation: earth-rotate 60s linear infinite;
}
.star-dot {
  position: absolute;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  animation-name: twinkle;
  animation-timing-function: ease-in-out;
  animation-iteration-count: infinite;
}
@keyframes earth-rotate { to { transform: rotate(360deg); } }
@keyframes twinkle {
  0%, 100% { opacity: var(--base-opacity, 0.4); }
  50% { opacity: 1; }
}
/* Terminator shading + atmosphere rim glow */
.ring-core::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background:
    radial-gradient(circle at 72% 28%, rgba(130, 175, 255, 0.4), transparent 42%),
    radial-gradient(circle at 28% 78%, rgba(0, 0, 0, 0.75), transparent 60%);
  box-shadow: inset 0 0 40px rgba(0, 0, 0, 0.6);
  pointer-events: none;
}
.hero-particles {
  position: absolute;
  right: -4%; bottom: -6%;
  width: 42%; height: 42%;
  background-image: radial-gradient(circle, rgba(52, 210, 255, 0.5) 1.5px, transparent 1.5px);
  background-size: 26px 26px;
  mask-image: radial-gradient(circle at bottom right, black, transparent 70%);
  pointer-events: none;
}

/* ==========================================================================
   Stats / Why Us
   ========================================================================== */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.stat-card { padding: 30px 24px; }
.stat-icon {
  width: 50px; height: 50px;
  border-radius: var(--radius-sm);
  display: grid; place-items: center;
  margin-bottom: 20px;
  background: linear-gradient(135deg, rgba(11, 120, 255, 0.18), rgba(138, 37, 255, 0.2));
  border: 1px solid rgba(104, 128, 255, 0.3);
}
.stat-icon svg { width: 24px; height: 24px; stroke: var(--cyan); }
.stat-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.stat-card p { color: var(--muted); font-size: 0.92rem; margin: 0; }

/* ==========================================================================
   Services
   ========================================================================== */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.service-card { padding: 32px; }
.service-card .icon {
  width: 56px; height: 56px;
  display: grid; place-items: center;
  border-radius: var(--radius-sm);
  margin-bottom: 22px;
  background: linear-gradient(135deg, rgba(11, 120, 255, 0.18), rgba(138, 37, 255, 0.2));
  border: 1px solid rgba(104, 128, 255, 0.3);
}
.service-card .icon svg { width: 26px; height: 26px; stroke: var(--cyan); }
.service-card h3 { font-size: 1.2rem; margin-bottom: 10px; }
.service-card p { color: var(--muted); margin: 0; font-size: 0.95rem; }

/* ==========================================================================
   Comparison (Before / After)
   ========================================================================== */
.comparison-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.comparison-col { padding: 8px; }
.comparison-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.85rem;
  margin: 18px 20px 6px;
}
.comparison-col.before .comparison-label { background: rgba(255, 87, 87, 0.14); color: #ff9c9c; border: 1px solid rgba(255, 87, 87, 0.3); }
.comparison-col.after .comparison-label { background: rgba(22, 215, 181, 0.14); color: #7cf2dd; border: 1px solid rgba(22, 215, 181, 0.32); }

.comparison-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 18px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.comparison-item:first-of-type { border-top: none; }
.comparison-item .dot {
  width: 34px; height: 34px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  display: grid; place-items: center;
}
.comparison-col.before .dot { background: rgba(255, 87, 87, 0.12); border: 1px solid rgba(255, 87, 87, 0.28); }
.comparison-col.after .dot { background: rgba(22, 215, 181, 0.12); border: 1px solid rgba(22, 215, 181, 0.3); }
.comparison-col.before .dot svg { stroke: #ff8a8a; width: 17px; height: 17px; }
.comparison-col.after .dot svg { stroke: var(--green); width: 17px; height: 17px; }
.comparison-item h4 { font-size: 0.98rem; margin-bottom: 4px; }
.comparison-item p { margin: 0; color: var(--muted); font-size: 0.86rem; }

.comparison-arrow {
  display: none;
}
@media (min-width: 700px) {
  .comparison-grid { position: relative; }
}

/* ==========================================================================
   Process
   ========================================================================== */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.process-card { padding: 30px 26px; }
.process-card .step { font-size: 0.8rem; color: var(--cyan); font-weight: 800; letter-spacing: 0.12em; margin-bottom: 22px; display: block; }
.process-card h3 { margin-bottom: 10px; font-size: 1.15rem; }
.process-card p { color: var(--muted); font-size: 0.92rem; margin: 0; }

/* ==========================================================================
   Packages
   ========================================================================== */
.packages-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; align-items: stretch; max-width: 900px; margin: 0 auto; }
.package-card { display: flex; flex-direction: column; padding: 32px; }
.package-card.featured { border-color: rgba(168, 65, 255, 0.55); }
.package-card.featured::before { opacity: 1; }
.package-tag {
  align-self: flex-start;
  margin-bottom: 18px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: rgba(79, 111, 255, 0.14);
  color: #a8c3ff;
  border: 1px solid rgba(104, 128, 255, 0.25);
}
.package-card h3 { font-size: 1.45rem; margin-bottom: 10px; }
.package-card > p.desc { color: var(--muted); min-height: 70px; margin: 0; }
.package-card ul { list-style: none; margin: 20px 0 28px; display: grid; gap: 11px; }
.package-card li { color: #dce4fb; font-size: 0.89rem; padding-left: 26px; position: relative; }
.package-card li svg { position: absolute; left: 0; top: 2px; width: 15px; height: 15px; stroke: var(--cyan); }
.package-note {
  font-size: 0.82rem;
  font-style: italic;
  color: var(--muted-2);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 16px;
  margin: 0 0 20px;
}
.package-card .btn { margin-top: auto; width: 100%; }

/* ==========================================================================
   CTA
   ========================================================================== */
.cta-panel {
  padding: 56px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 30px;
  align-items: center;
  background: linear-gradient(110deg, rgba(7, 80, 183, 0.42), rgba(97, 27, 190, 0.46));
  border: 1px solid rgba(142, 150, 255, 0.35);
}
.cta-panel h2 { font-size: clamp(1.9rem, 4vw, 3rem); margin: 10px 0 14px; }
.cta-panel p { color: #d6def5; margin: 0; }
.cta-actions { display: flex; justify-content: flex-end; gap: 12px; flex-wrap: wrap; }

/* ==========================================================================
   Footer
   ========================================================================== */
footer { border-top: 1px solid rgba(255, 255, 255, 0.07); padding: 40px 0 48px; color: var(--muted); }
.footer-grid { display: flex; justify-content: space-between; gap: 24px; align-items: center; flex-wrap: wrap; }
.footer-brand { display: flex; align-items: center; gap: 10px; font-family: "Space Grotesk", sans-serif; font-weight: 700; }
.footer-brand img { width: 30px; height: 30px; }
.footer-tagline { color: var(--muted-2); font-size: 0.88rem; margin-top: 4px; }
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; font-size: 0.9rem; }
.footer-links a:hover { color: white; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1080px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 940px) {
  .hero-grid, .cta-panel { grid-template-columns: 1fr; }
  .hero-visual { min-height: 420px; order: -1; }
  .packages-grid { grid-template-columns: 1fr; }
  .package-card.featured { order: -1; }
  .cta-actions { justify-content: flex-start; }
}

@media (max-width: 700px) {
  .comparison-grid { grid-template-columns: 1fr; }
  .trust-row { grid-template-columns: 1fr; }
  section { padding: 76px 0; }
}

@media (max-width: 560px) {
  .container { width: min(100% - 24px, 1200px); }
  .nav-inner { height: 70px; }
  .stats-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .cta-panel { padding: 32px 22px; }
  .icon-chip { width: 44px; height: 44px; }
  .icon-chip svg { width: 18px; height: 18px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .icon-chip, .orbit-ring::before, .earth-lights, .star-dot { animation: none; }
  html { scroll-behavior: auto; }
}