/* ============================================================
   Ayasya Technologies — design tokens
   ============================================================ */
:root {
  --paper:  #F3F2EE;   /* page background — cool off-white, not cream */
  --panel:  #EAE8E1;   /* slightly deeper panel background */
  --ink:    #1E2A32;   /* primary text — deep charcoal-blue */
  --slate:  #435868;   /* brand primary — muted blue-grey */
  --steel:  #7C8B96;   /* secondary text / muted tone */
  --brass:  #9C7A45;   /* accent — muted brass, used sparingly */
  --line:   #D9D6CD;   /* hairline borders / rules */
  --white:  #FFFFFF;

  --font-display: "Space Grotesk", "Arial", sans-serif;
  --font-body:    "Source Serif 4", "Georgia", serif;
  --font-mono:    "IBM Plex Mono", "Courier New", monospace;

  --maxw: 1160px;
  --gap: clamp(1.25rem, 3vw, 2.5rem);
}

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink);
  margin: 0 0 0.5em 0;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); font-weight: 600; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 600; }
h3 { font-size: 1.2rem; font-weight: 600; }

p { margin: 0 0 1em 0; color: var(--ink); }

a { color: var(--slate); text-decoration: none; }
a:hover { color: var(--brass); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brass);
  display: block;
  margin-bottom: 0.9em;
}

.muted { color: var(--steel); }

/* Focus visibility (accessibility) */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--slate);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ============================================================
   Layout helpers
   ============================================================ */
.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gap);
}

.section {
  padding: clamp(3rem, 7vw, 6rem) 0;
  border-bottom: 1px solid var(--line);
}
.section:last-of-type { border-bottom: none; }
.section.alt { background: var(--panel); }

/* ============================================================
   Header / Nav
   ============================================================ */
header.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gap);
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}
.brand:hover { color: var(--ink); }
.brand small {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--brass);
  letter-spacing: 0.1em;
}

.nav-links {
  display: flex;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  align-items: center;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink);
  position: relative;
  padding: 0.25rem 0;
}
.nav-links a::before {
  content: attr(data-index);
  color: var(--brass);
  margin-right: 0.4em;
}
.nav-links a[aria-current="page"] {
  color: var(--slate);
  border-bottom: 1px solid var(--slate);
}
.nav-links a:hover { color: var(--slate); }

.nav-cta {
  background: var(--ink);
  color: var(--white) !important;
  padding: 0.55rem 1.1rem;
  border-radius: 2px;
  font-size: 0.78rem !important;
}
.nav-cta::before { content: none !important; }
.nav-cta:hover { background: var(--slate); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 0.4rem 0.6rem;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

@media (max-width: 780px) {
  .nav-toggle { display: inline-block; }
  .nav-links {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem var(--gap) 1.5rem;
    gap: 1rem;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-cta { margin-top: 0.4rem; }
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.85rem 1.4rem;
  border-radius: 2px;
  border: 1px solid var(--ink);
  color: var(--ink);
  background: transparent;
  cursor: pointer;
}
.btn:hover { background: var(--ink); color: var(--white); }
.btn.primary { background: var(--ink); color: var(--white); }
.btn.primary:hover { background: var(--slate); border-color: var(--slate); }

/* ============================================================
   Hero + schematic diagram
   ============================================================ */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--gap);
  align-items: center;
  padding: clamp(3.5rem, 8vw, 6.5rem) 0;
}
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; }
}

.hero .lede { font-size: 1.15rem; color: var(--steel); max-width: 34ch; }
.hero-actions { display: flex; gap: 1rem; margin-top: 1.75rem; flex-wrap: wrap; }

.diagram { width: 100%; height: auto; }
.diagram line, .diagram path {
  stroke: var(--slate);
  stroke-width: 1;
  opacity: 0.55;
}
.diagram circle { fill: var(--paper); stroke: var(--slate); stroke-width: 1.3; }
.diagram circle.node-lit { fill: var(--brass); stroke: var(--brass); }
.diagram .pulse {
  stroke-dasharray: 4 6;
  animation: dash 5s linear infinite;
}
@keyframes dash { to { stroke-dashoffset: -100; } }

/* ============================================================
   Structured list (definition-style rows — used for services,
   process steps; hairline dividers instead of cards)
   ============================================================ */
.row-list { border-top: 1px solid var(--line); }
.row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--gap);
  padding: 2rem 0;
  border-bottom: 1px solid var(--line);
}
@media (max-width: 700px) {
  .row { grid-template-columns: 1fr; gap: 0.5rem; }
}
.row .tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brass);
  padding-top: 0.25rem;
}
.row h3 { margin-bottom: 0.4em; }
.row p:last-child { margin-bottom: 0; }

/* Process steps — legitimately sequential, so numbered */
.steps { border-top: 1px solid var(--line); }
.step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: var(--gap);
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--line);
}
.step .num {
  font-family: var(--font-mono);
  color: var(--steel);
  font-size: 0.95rem;
  padding-top: 0.2rem;
}
@media (max-width: 700px) {
  .step { grid-template-columns: 40px 1fr; }
}

/* Two/three column grid */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}
@media (max-width: 860px) {
  .grid-3 { grid-template-columns: 1fr; }
}

.card {
  border: 1px solid var(--line);
  padding: 1.75rem;
  background: var(--paper);
}
.card h3 { margin-bottom: 0.5em; }

/* ============================================================
   Footer
   ============================================================ */
footer.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.5rem 0;
  background: var(--panel);
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1.5rem;
}
.footer-grid .brand { margin-bottom: 0.4rem; }
.footer-links { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer-links a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink);
}
.copyright {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--steel);
  margin-top: 1.5rem;
}

/* ============================================================
   Contact page specifics
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
}
@media (max-width: 860px) {
  .contact-grid { grid-template-columns: 1fr; }
}

.contact-detail {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}
.contact-detail .label { color: var(--steel); display: block; margin-bottom: 0.3em; text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.7rem; }

form.contact-form { display: flex; flex-direction: column; gap: 1.1rem; }
form.contact-form label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--steel);
  margin-bottom: 0.4em;
  display: block;
}
form.contact-form input,
form.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--white);
  padding: 0.75rem 0.85rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
  border-radius: 2px;
}
form.contact-form textarea { resize: vertical; min-height: 120px; }
form.contact-form .btn { align-self: flex-start; margin-top: 0.3rem; }

.form-note {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--steel);
  margin-top: 0.75rem;
}

/* Page header (non-home pages) */
.page-header { padding: clamp(2.5rem, 6vw, 4rem) 0 1rem; }
.page-header .lede { max-width: 46ch; color: var(--steel); font-size: 1.05rem; }