/* ==========================================================================
   Belgray Corp — design tokens
   ========================================================================== */
:root {
  /* color */
  --ink:        #12131A;
  --ink-soft:   #1D2030;
  --ink-line:   rgba(255,255,255,0.10);
  --paper:      #F6F7FA;
  --paper-dim:  #EBEDF3;
  --surface:    #FFFFFF;
  --indigo:     #5B5FEF;
  --indigo-deep:#4448C4;
  --mint:       #21C7A8;
  --text:       #1B1C24;
  --text-muted: #61636F;
  --text-on-ink:#F1F2F8;
  --text-on-ink-muted: rgba(241,242,248,0.68);
  --border:     rgba(18,19,26,0.09);

  /* type */
  --font-display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Menlo, monospace;

  /* layout */
  --wrap: 1180px;
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --ease: cubic-bezier(.2,.7,.2,1);
}

/* ==========================================================================
   Reset
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: var(--font-display); color: var(--text); margin: 0; line-height: 1.1; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { margin: 0; padding: 0; list-style: none; }
button { font: inherit; cursor: pointer; }

.mono { font-family: var(--font-mono); letter-spacing: 0.02em; }

.wrap {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 28px;
}

.hero h1 {
  color: var(--text-on-ink);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--ink);
  color: var(--text-on-ink);
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  z-index: 200;
}
.skip-link:focus {
  left: 20px;
  top: 20px;
}

:focus-visible {
  outline: 2px solid var(--indigo);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 999px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--indigo);
  color: #fff;
}
.btn-primary:hover { background: var(--indigo-deep); }
.btn-ghost {
  background: transparent;
  border-color: var(--ink-line);
  color: var(--text-on-ink);
}
.btn-ghost:hover { border-color: rgba(255,255,255,0.4); }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246,247,250,0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
}
.logo-img {
  height: 55px;
  width: auto;
  display: block;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  font-size: 0.94rem;
  font-weight: 500;
}
.site-nav a:not(.nav-cta) { color: var(--text-muted); transition: color .2s var(--ease); }
.site-nav a:not(.nav-cta):hover { color: var(--text); }
.nav-cta {
  background: var(--ink);
  color: var(--text-on-ink);
  padding: 9px 18px;
  border-radius: 999px;
  transition: background .2s var(--ease);
}
.nav-cta:hover { background: var(--indigo); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
}
.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--text);
  transition: transform .25s var(--ease), opacity .25s var(--ease);
}
.mobile-nav {
  display: none;
  flex-direction: column;
  padding: 10px 28px 22px;
  gap: 4px;
  border-top: 1px solid var(--border);
}
.mobile-nav a {
  padding: 12px 0;
  font-weight: 500;
  color: var(--text);
  border-bottom: 1px solid var(--border);
}
.site-header.nav-open .mobile-nav { display: flex; }
.site-header.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-header.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.site-header.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  background: radial-gradient(ellipse 120% 90% at 15% -10%, #2A2E52 0%, var(--ink) 55%);
  color: var(--text-on-ink);
  padding: 96px 0 84px;
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.eyebrow {
  color: var(--mint);
  font-size: 0.82rem;
  text-transform: uppercase;
  margin-bottom: 18px;
  display: inline-block;
}
.hero h1 {
  font-size: clamp(2.2rem, 4.1vw, 3.5rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 22px;
}
.hero-lede {
  color: var(--text-on-ink-muted);
  font-size: 1.08rem;
  max-width: 46ch;
  margin-bottom: 34px;
}
.hero-actions { display: flex; gap: 14px; margin-bottom: 56px; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: 40px;
  margin: 0;
  padding-top: 28px;
  border-top: 1px solid var(--ink-line);
}
.hero-stats dt {
  font-size: 0.78rem;
  color: var(--text-on-ink-muted);
  margin-bottom: 6px;
}
.hero-stats dd {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.02rem;
}

/* signature element: placeholder device mockup (laptop / tablet / phone) */
.hero-visual { display: flex; justify-content: center; }
.device-mockup {
  width: min(100%, 460px);
  height: auto;
  filter: drop-shadow(0 24px 44px rgba(0,0,0,0.45));
  animation: float 7s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ==========================================================================
   Intro strip
   ========================================================================== */
.intro { padding: 88px 0; background: var(--paper); }
.intro-inner { max-width: 780px; }
.section-eyebrow {
  color: var(--indigo-deep);
  font-size: 0.8rem;
  text-transform: uppercase;
  margin-bottom: 16px;
  display: inline-block;
}
.intro h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  font-weight: 600;
  margin-bottom: 18px;
}
.intro-text { color: var(--text-muted); font-size: 1.05rem; max-width: 62ch; }

/* ==========================================================================
   Section heading shared
   ========================================================================== */
.products h2, .services h2, .founder h2 { font-size: clamp(1.7rem, 2.8vw, 2.3rem); font-weight: 600; }
.section-lede { color: var(--text-muted); margin-top: 14px; max-width: 60ch; font-size: 1.02rem; }

/* ==========================================================================
   Products
   ========================================================================== */
.products { padding: 96px 0; background: var(--surface); }
.product-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.product-card {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.product-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px -20px rgba(18,19,26,0.22);
  border-color: transparent;
}
.product-icon {
  width: 48px; height: 48px;
  border-radius: 26%;
  margin-bottom: 6px;
}
.icon-a { background: linear-gradient(155deg, #5B5FEF, #8A8DFF); }
.icon-b { background: linear-gradient(155deg, #21C7A8, #7BE6D2); }
.icon-c { background: linear-gradient(155deg, #F0A94E, #F6CE8E); }
.icon-d { background: linear-gradient(155deg, #EF5B8E, #F79CBC); }
.product-card h3 { font-size: 1.12rem; font-weight: 600; }
.product-tag { color: var(--text-muted); font-size: 0.78rem; }
.product-card p:not(.product-tag) { color: var(--text-muted); font-size: 0.94rem; flex-grow: 1; }
.product-link {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--indigo-deep);
  margin-top: 4px;
}
.product-link:hover { text-decoration: underline; }

/* ==========================================================================
   Services
   ========================================================================== */
.services { padding: 96px 0; background: var(--paper); }
.service-list { margin-top: 40px; border-top: 1px solid var(--border); }
.service-row {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 30px;
  padding: 26px 0;
  border-bottom: 1px solid var(--border);
}
.service-row h3 { font-size: 1.08rem; font-weight: 600; }
.service-row p { color: var(--text-muted); }

/* ==========================================================================
   Founder
   ========================================================================== */
.founder { padding: 100px 0; background: var(--surface); }
.founder-inner {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 56px;
  align-items: start;
}
.portrait-frame {
  width: 160px;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-lg);
  background: linear-gradient(155deg, var(--ink-soft), var(--ink));
  position: relative;
  overflow: hidden;
}
.portrait-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 25%, rgba(91,95,239,0.55), transparent 55%),
              radial-gradient(circle at 75% 80%, rgba(33,199,168,0.45), transparent 55%);
  pointer-events: none;
}
.portrait-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: relative;
  z-index: 1;
}
.founder h2 { margin-bottom: 4px; }
.founder-role { color: var(--indigo-deep); font-weight: 600; margin-bottom: 18px; }
.founder-copy p { color: var(--text-muted); max-width: 62ch; margin-bottom: 26px; }
.skill-pills { display: flex; flex-wrap: wrap; gap: 10px; }
.skill-pills li {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--paper-dim);
  color: var(--text);
}

/* ==========================================================================
   Contact
   ========================================================================== */
.contact { padding: 100px 0 110px; background: var(--ink); color: var(--text-on-ink); }
.contact-inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
}
.contact h2 { color: var(--text-on-ink); font-size: clamp(1.7rem, 2.8vw, 2.3rem); margin-top: 16px; margin-bottom: 18px; }
.contact-copy p { color: var(--text-on-ink-muted); max-width: 40ch; margin-bottom: 26px; }
.contact-email {
  font-size: 1.02rem;
  color: var(--mint);
  border-bottom: 1px solid rgba(33,199,168,0.4);
  padding-bottom: 3px;
}
.contact-email:hover { border-color: var(--mint); }

.contact-form { display: flex; flex-direction: column; gap: 18px; }
.form-row { display: flex; flex-direction: column; gap: 8px; }
.form-row label { font-size: 0.86rem; color: var(--text-on-ink-muted); }
.form-row input, .form-row textarea {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--ink-line);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text-on-ink);
  font: inherit;
  resize: vertical;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}
.form-row input:focus, .form-row textarea:focus {
  border-color: var(--indigo);
  background: rgba(255,255,255,0.09);
  outline: none;
}
.contact-form .btn { align-self: flex-start; margin-top: 4px; }
.form-note { font-size: 0.88rem; color: var(--mint); min-height: 1.2em; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { background: var(--ink); color: var(--text-on-ink-muted); border-top: 1px solid var(--ink-line); }
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 26px 0;
  font-size: 0.86rem;
}
.footer-links a:hover { color: var(--text-on-ink); }

/* ==========================================================================
   Scroll reveal
   ========================================================================== */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1000px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .service-row { grid-template-columns: 1fr; gap: 8px; }
  .contact-inner { grid-template-columns: 1fr; gap: 42px; }
}

@media (max-width: 880px) {
  .site-nav { display: none; }
  .nav-toggle { display: flex; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; margin-bottom: 8px; }
  .device-mockup { width: min(100%, 320px); }
  .founder-inner { grid-template-columns: 1fr; }
  .portrait-frame { max-width: 180px; }
}

@media (max-width: 560px) {
  .wrap { padding-inline: 20px; }
  .hero { padding: 64px 0 56px; }
  .hero-stats { flex-wrap: wrap; row-gap: 18px; }
  .product-grid { grid-template-columns: 1fr; }
  .intro, .products, .services, .founder, .contact { padding-block: 64px; }
}