/* ==========================================================================
   DIGITAL MORSE — stylesheet
   Token system: white base, signal-blue + pulse-teal accents, mono for morse
   ========================================================================== */

:root{
  /* ---- Color ---- */
  --white:        #ffffff;
  --ink:          #0b0e14;
  --ink-soft:     #4a5064;
  --mist:         #f4f6fb;
  --line:         #e5e8f1;
  --signal-blue:  #2f5dff;
  --signal-blue-dark: #1c3fd6;
  --pulse-teal:   #00c9a7;
  --amber:        #ff9a3d;

  /* ---- Type ---- */
  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body:    "Inter", "Segoe UI", sans-serif;
  --font-mono:    "Space Mono", "Courier New", monospace;

  /* ---- Layout ---- */
  --container: 1180px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 26px;
  --shadow-sm: 0 2px 10px rgba(11,14,20,.06);
  --shadow-md: 0 14px 34px rgba(11,14,20,.09);
  --shadow-blue: 0 16px 34px rgba(47,93,255,.22);
  --ease: cubic-bezier(.22,.68,0,1);
}

/* ==========================================================================
   Reset
   ========================================================================== */
*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--white);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration: none; }
ul{ list-style: none; margin:0; padding:0; }
h1,h2,h3,h4{ font-family: var(--font-display); margin:0; line-height:1.12; }
p{ margin:0; }
button{ font: inherit; cursor:pointer; }
svg{ display:block; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{ animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}

.container{
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

:focus-visible{
  outline: 2.5px solid var(--signal-blue);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ==========================================================================
   Signature signal-grid backdrop
   ========================================================================== */
.grid-backdrop{
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(90deg, var(--line) 1px, transparent 1px),
    linear-gradient(0deg, var(--line) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 80% 55% at 50% 0%, #000 8%, transparent 68%);
  -webkit-mask-image: radial-gradient(ellipse 80% 55% at 50% 0%, #000 8%, transparent 68%);
  opacity: .55;
  animation: gridDrift 26s linear infinite;
}
@keyframes gridDrift{
  0%{ background-position: 0 0, 0 0; }
  100%{ background-position: 46px 46px, 46px 46px; }
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  border: 1.5px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
  white-space: nowrap;
}
.btn svg{ transition: transform .25s var(--ease); }
.btn:hover svg{ transform: translateX(3px); }
.btn:active{ transform: scale(.97); }

.btn-primary{
  background: var(--ink);
  color: var(--white);
}
.btn-primary:hover{
  background: var(--signal-blue);
  box-shadow: var(--shadow-blue);
  transform: translateY(-2px);
}
.btn-ghost{
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn-ghost:hover{
  border-color: var(--ink);
  transform: translateY(-2px);
}
.btn-sm{ padding: 9px 18px; font-size: .86rem; }
.btn-lg{ padding: 15px 26px; font-size: .98rem; }

/* ==========================================================================
   Header / Nav
   ========================================================================== */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.82);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease), padding .3s var(--ease);
}
.site-header.is-scrolled{
  border-color: var(--line);
  box-shadow: 0 6px 24px rgba(11,14,20,.05);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 28px;
  transition: padding .3s var(--ease);
}
.site-header.is-scrolled .header-inner{ padding: 11px 28px; }

.logo{ display:flex; align-items:center; gap:11px; }
.logo-box{ fill: var(--ink); }
.logo-letters{
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 15px;
  fill: var(--white);
}
.logo-dot, .logo-dash{ fill: var(--pulse-teal); }
.logo-text{ display:flex; flex-direction:column; line-height:1.15; }
.logo-name{ font-family: var(--font-display); font-weight:700; font-size: 1.14rem; letter-spacing:-.01em; }
.logo-name em{ font-style:normal; color: var(--signal-blue); }
.logo-sub{ font-family: var(--font-mono); font-size: .62rem; letter-spacing:.08em; color: var(--ink-soft); text-transform:uppercase; }
.logo--footer .logo-sub{ display:none; }

.main-nav ul{ display:flex; align-items:center; gap: 30px; }
.nav-link{
  position: relative;
  font-weight: 500;
  font-size: .95rem;
  color: var(--ink-soft);
  padding: 6px 0;
  transition: color .2s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0; bottom:-2px;
  width:0; height:2px;
  background: var(--signal-blue);
  transition: width .28s var(--ease);
}
.nav-link:hover, .nav-link.is-active{ color: var(--ink); }
.nav-link:hover::after, .nav-link.is-active::after{ width:100%; }

.header-actions{ display:flex; align-items:center; gap: 16px; }

.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width: 38px; height: 38px;
  background:none; border:none;
  padding:0;
}
.nav-toggle span{
  height:2px; width:100%;
  background: var(--ink);
  border-radius: 2px;
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.nav-toggle.is-open span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2){ opacity:0; }
.nav-toggle.is-open span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

.nav-overlay{
  position: fixed; inset:0;
  background: rgba(11,14,20,.35);
  opacity:0; visibility:hidden;
  transition: opacity .3s var(--ease), visibility .3s;
  z-index: 90;
}
.nav-overlay.is-visible{ opacity:1; visibility:visible; }

/* animated hairline pulse under header */
.header-signal{
  height: 2px;
  width: 100%;
  background: linear-gradient(90deg, transparent, var(--signal-blue) 20%, var(--pulse-teal) 50%, var(--signal-blue) 80%, transparent);
  background-size: 220% 100%;
  animation: signalSlide 5.5s linear infinite;
  opacity:.55;
}
@keyframes signalSlide{
  0%{ background-position: 0% 0; }
  100%{ background-position: -220% 0; }
}

/* ==========================================================================
   Eyebrow / section heads
   ========================================================================== */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing:.09em;
  text-transform: uppercase;
  color: var(--signal-blue-dark);
  margin-bottom: 18px;
}
.eyebrow-dot{
  width:7px; height:7px;
  border-radius:50%;
  background: var(--pulse-teal);
  box-shadow: 0 0 0 0 rgba(0,201,167,.55);
  animation: pulseDot 1.8s ease-out infinite;
}
@keyframes pulseDot{
  0%{ box-shadow: 0 0 0 0 rgba(0,201,167,.5); }
  70%{ box-shadow: 0 0 0 8px rgba(0,201,167,0); }
  100%{ box-shadow: 0 0 0 0 rgba(0,201,167,0); }
}

.section-head{ max-width: 620px; margin-bottom: 56px; }
.section-title{ font-size: clamp(1.9rem, 3.2vw, 2.6rem); font-weight:700; letter-spacing:-.015em; margin-bottom: 16px; }
.section-sub{ color: var(--ink-soft); font-size: 1.05rem; }

.section-divider{
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line) 15%, var(--line) 85%, transparent);
  max-width: var(--container);
  margin: 0 auto;
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{ padding: 78px 0 90px; }
.hero-inner{
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  align-items:center;
  gap: 56px;
}
.hero-title{
  font-size: clamp(2.3rem, 4.4vw, 3.6rem);
  font-weight:700;
  letter-spacing:-.02em;
  margin-bottom: 22px;
}
.hero-title .hl{ color: var(--signal-blue); position:relative; white-space:nowrap; }
.hero-sub{ font-size: 1.12rem; color: var(--ink-soft); max-width: 520px; margin-bottom: 34px; }
.hero-cta{ display:flex; gap:14px; flex-wrap:wrap; margin-bottom: 52px; }

.hero-stats{ display:grid; grid-template-columns: repeat(4, auto); gap: 30px; margin:0; }
.stat dt{ font-family: var(--font-display); font-size: 1.7rem; font-weight:700; color: var(--ink); }
.stat dd{ font-size: .82rem; color: var(--ink-soft); margin-top:2px; }

/* --- Hero visual: the signature signal card --- */
.hero-visual{ position: relative; }
.signal-card{
  background: var(--ink);
  border-radius: var(--radius-lg);
  padding: 26px 26px 22px;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow:hidden;
  animation: floatCard 6s ease-in-out infinite;
}
@keyframes floatCard{
  0%,100%{ transform: translateY(0); }
  50%{ transform: translateY(-10px); }
}
.signal-card-head{
  display:flex; align-items:center; gap:8px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing:.12em;
  color: rgba(255,255,255,.65);
  margin-bottom: 14px;
}
.signal-led{
  width:8px; height:8px; border-radius:50%;
  background: var(--pulse-teal);
  box-shadow: 0 0 0 0 rgba(0,201,167,.6);
  animation: pulseDot 1.6s ease-out infinite;
}
.signal-svg{ width:100%; height: auto; }
.signal-baseline{ stroke: rgba(255,255,255,.12); stroke-width:1; }
.signal-path{
  fill:none;
  stroke: var(--pulse-teal);
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 6px rgba(0,201,167,.55));
  stroke-dasharray: 900;
  stroke-dashoffset: 900;
  animation: drawSignal 3.4s var(--ease) infinite;
}
@keyframes drawSignal{
  0%{ stroke-dashoffset: 900; }
  55%{ stroke-dashoffset: 0; }
  100%{ stroke-dashoffset: -20; }
}
.signal-caption{
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing:.18em;
  color: rgba(255,255,255,.55);
  text-align:center;
  margin-top: 6px;
}

.floating-chip{
  position:absolute;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  border-radius: 999px;
  padding: 9px 16px;
  font-size: .78rem;
  font-weight: 600;
  display:flex; align-items:center;
  animation: chipFloat 5s ease-in-out infinite;
}
.chip-1{ top: -18px; right: 8%; animation-delay: .3s; }
.chip-2{ bottom: -16px; left: 4%; animation-delay: 1.1s; }
@keyframes chipFloat{
  0%,100%{ transform: translateY(0); }
  50%{ transform: translateY(-8px); }
}

/* ==========================================================================
   Services grid
   ========================================================================== */
.services{ padding: 90px 0; background: var(--mist); position:relative; }
.services-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.service-card{
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 30px 26px 26px;
  position: relative;
  overflow:hidden;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}
.service-card::before{
  content:"";
  position:absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1.5px;
  background: linear-gradient(135deg, var(--signal-blue), var(--pulse-teal));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity .35s var(--ease);
  pointer-events:none;
}
.service-card:hover{
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.service-card:hover::before{ opacity: 1; }

.service-top{ display:flex; align-items:center; justify-content:space-between; margin-bottom: 22px; }
.service-icon{
  width: 46px; height: 46px;
  display:flex; align-items:center; justify-content:center;
  border-radius: 12px;
  background: var(--mist);
  color: var(--signal-blue);
  transition: background .3s var(--ease), color .3s var(--ease), transform .3s var(--ease);
}
.service-card:hover .service-icon{
  background: var(--ink);
  color: var(--pulse-teal);
  transform: rotate(-6deg) scale(1.06);
}
.service-morse{
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .12em;
  color: var(--ink-soft);
  opacity: .55;
}
.service-title{ font-size: 1.22rem; font-weight:600; margin-bottom: 10px; }
.service-desc{ color: var(--ink-soft); font-size: .95rem; margin-bottom: 20px; }
.service-link{
  display:inline-flex; align-items:center; gap:6px;
  font-size: .88rem; font-weight:600; color: var(--ink);
}
.service-link svg{ transition: transform .25s var(--ease); }
.service-card:hover .service-link svg{ transform: translateX(4px); }

/* ==========================================================================
   Process
   ========================================================================== */
.process{ padding: 96px 0; }
.process-line{
  position: relative;
  display:grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}
.process-line::before{
  content:"";
  position:absolute;
  top: 22px; left: 4%; right: 4%;
  height: 1.5px;
  background: repeating-linear-gradient(90deg, var(--line) 0 8px, transparent 8px 14px);
}
.process-step{ position:relative; padding-top: 8px; }
.process-num{
  display:inline-flex; align-items:center; justify-content:center;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--white);
  border: 1.5px solid var(--ink);
  font-family: var(--font-mono);
  font-weight:700;
  font-size: .92rem;
  margin-bottom: 18px;
  transition: background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease);
  position: relative;
  z-index:1;
}
.process-step:hover .process-num{
  background: var(--signal-blue);
  border-color: var(--signal-blue);
  color: var(--white);
  transform: scale(1.08);
}
.process-title{ font-size: 1.08rem; font-weight:600; margin-bottom: 8px; }
.process-desc{ color: var(--ink-soft); font-size: .9rem; }

/* ==========================================================================
   About / Founder
   ========================================================================== */
.about{ padding: 96px 0; background: var(--mist); }
.about-inner{
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 60px;
  align-items:center;
}
.about-points{ margin-top: 26px; display:flex; flex-direction:column; gap: 12px; }
.about-points li{
  position:relative;
  padding-left: 26px;
  font-size: .96rem;
  color: var(--ink);
}
.about-points li::before{
  content:"";
  position:absolute; left:0; top:7px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--pulse-teal);
}

.founder-card{
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 40px 34px;
  box-shadow: var(--shadow-md);
  text-align:center;
}
.founder-avatar{
  position: relative;
  width: 84px; height:84px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--signal-blue), var(--pulse-teal));
  display:flex; align-items:center; justify-content:center;
  color: var(--white);
  font-family: var(--font-display);
  font-weight:700;
  font-size: 1.5rem;
}
.founder-ring{
  position:absolute; inset:-7px;
  border-radius:50%;
  border: 1.5px dashed var(--line);
  animation: spinRing 18s linear infinite;
}
@keyframes spinRing{ to{ transform: rotate(360deg); } }
.founder-quote{
  font-family: var(--font-display);
  font-size: 1.1rem;
  line-height:1.5;
  margin: 0 0 22px;
  color: var(--ink);
}
.founder-name{ font-weight:700; font-size: 1.02rem; }
.founder-role{ font-size: .85rem; color: var(--ink-soft); margin-top:2px; }

/* ==========================================================================
   CTA band
   ========================================================================== */
.cta-band{
  padding: 88px 0;
  background: var(--ink);
  color: var(--white);
  position: relative;
  overflow:hidden;
  text-align:center;
}
.cta-band-inner{ position:relative; z-index:1; max-width: 640px; margin:0 auto; }
.cta-signal{ position:absolute; inset:auto 0 0 0; opacity:.5; }
.cta-wave{ width:100%; height:60px; }
.cta-wave-path{
  fill:none; stroke: var(--signal-blue); stroke-width:1.4;
  stroke-dasharray: 1200; stroke-dashoffset:1200;
  animation: drawSignal 5s var(--ease) infinite;
}
.cta-heading{ font-size: clamp(1.8rem, 3vw, 2.4rem); margin-bottom: 16px; }
.cta-text{ color: rgba(255,255,255,.68); font-size: 1.02rem; margin-bottom: 32px; }
.cta-band .btn-primary{ background: var(--white); color: var(--ink); }
.cta-band .btn-primary:hover{ background: var(--pulse-teal); color: var(--ink); }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer{ background: var(--white); padding-top: 70px; border-top: 1px solid var(--line); }
.footer-grid{
  display:grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 56px;
}
.footer-brand{ max-width: 320px; }
.footer-blurb{ color: var(--ink-soft); font-size: .92rem; margin: 18px 0 16px; }
.footer-morse{ font-family: var(--font-mono); color: var(--ink-soft); font-size: .82rem; display:flex; gap:8px; opacity:.6; }
.footer-heading{ font-family: var(--font-body); font-size: .82rem; letter-spacing:.08em; text-transform:uppercase; color: var(--ink-soft); margin-bottom: 18px; }
.footer-links{ display:flex; flex-direction:column; gap: 12px; }
.footer-links a{ font-size: .93rem; color: var(--ink); transition: color .2s; position:relative; }
.footer-links a:hover{ color: var(--signal-blue); }
.footer-contact{ display:flex; flex-direction:column; gap: 14px; margin-bottom: 20px; }
.footer-contact li{ display:flex; align-items:center; gap: 10px; font-size: .9rem; color: var(--ink-soft); }
.footer-contact svg{ flex-shrink:0; color: var(--signal-blue); }
.footer-social{ display:flex; gap: 10px; }
.social-btn{
  width: 36px; height:36px;
  display:flex; align-items:center; justify-content:center;
  border-radius: 50%;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight:700;
  transition: background .25s, color .25s, transform .25s, border-color .25s;
}
.social-btn:hover{ background: var(--ink); color: var(--white); border-color: var(--ink); transform: translateY(-3px); }

.footer-bottom{ border-top: 1px solid var(--line); }
.footer-bottom-inner{
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:10px;
  padding: 20px 28px;
  font-size: .82rem;
  color: var(--ink-soft);
}
.footer-founder strong{ color: var(--ink); }

/* ==========================================================================
   Back to top
   ========================================================================== */
.back-to-top{
  position: fixed;
  right: 24px; bottom: 24px;
  width: 46px; height:46px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--white);
  border:none;
  display:flex; align-items:center; justify-content:center;
  box-shadow: var(--shadow-md);
  opacity:0; visibility:hidden; transform: translateY(10px);
  transition: opacity .3s var(--ease), transform .3s var(--ease), visibility .3s, background .3s;
  z-index: 80;
}
.back-to-top.is-visible{ opacity:1; visibility:visible; transform: translateY(0); }
.back-to-top:hover{ background: var(--signal-blue); }

/* ==========================================================================
   Scroll reveal
   ========================================================================== */
.reveal{
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
  transition-delay: var(--delay, 0ms);
}
.reveal.is-visible{ opacity: 1; transform: translateY(0); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1024px){
  .services-grid{ grid-template-columns: repeat(2, 1fr); }
  .hero-inner{ grid-template-columns: 1fr; }
  .hero-visual{ order:-1; max-width: 460px; margin: 0 auto; }
  .about-inner{ grid-template-columns: 1fr; }
  .founder-card{ max-width: 460px; margin: 0 auto; }
  .process-line{ grid-template-columns: repeat(3, 1fr); row-gap: 40px; }
  .process-line::before{ display:none; }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
  .footer-brand{ grid-column: 1 / -1; max-width:none; }
}

@media (max-width: 860px){
  .main-nav{
    position: fixed;
    top: 0; right: -100%;
    height: 100vh; width: min(320px, 82vw);
    background: var(--white);
    box-shadow: -18px 0 40px rgba(11,14,20,.12);
    padding: 100px 32px 32px;
    transition: right .4s var(--ease);
    z-index: 95;
  }
  .main-nav.is-open{ right: 0; }
  .main-nav ul{ flex-direction:column; align-items:flex-start; gap: 26px; }
  .nav-link{ font-size: 1.1rem; }
  .nav-toggle{ display:flex; }
  .header-actions .btn-sm{ display:none; }
  .hero-stats{ grid-template-columns: repeat(2, auto); row-gap: 24px; }
}

@media (max-width: 680px){
  .container{ padding: 0 20px; }
  .hero{ padding: 52px 0 60px; }
  .services{ padding: 64px 0; }
  .process, .about{ padding: 64px 0; }
  .services-grid{ grid-template-columns: 1fr; }
  .process-line{ grid-template-columns: repeat(2, 1fr); }
  .footer-grid{ grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom-inner{ flex-direction:column; align-items:flex-start; }
  .cta-band{ padding: 64px 0; }
  .founder-card{ padding: 32px 22px; }
}

@media (max-width: 420px){
  .hero-stats{ grid-template-columns: repeat(2, 1fr); }
  .hero-cta{ flex-direction:column; align-items:stretch; }
  .hero-cta .btn{ justify-content:center; }
}