/* =====================================================================
   NodePoint — corporate site
   Palette, type, and motifs from the NodePoint Brand Guidelines.
   ===================================================================== */

:root {
  /* Core palette */
  --linen:        #F3F0E8;  /* Soft Linen  */
  --linen-deep:   #E9E4D8;
  --anthracite:   #1C1D21;  /* Anthracite  */
  --blue:         #0499C0;  /* Blue Danube */
  --blue-deep:    #21637B;
  --blue-ink:     #0D3647;
  --scarlet:      #C3283D;  /* Scarlet     */
  --scarlet-deep: #A21A2C;

  /* Neutrals (warm) */
  --ink:          #1C1D21;
  --ink-soft:     #4a4b50;
  --muted:        #6f6c64;
  --line:         #d9d3c5;
  --line-soft:    #e4dfd2;

  /* Signature gradient */
  --grad: linear-gradient(118deg, var(--blue) 0%, #6b5a8e 52%, var(--scarlet) 100%);

  /* Type */
  --display: "Plus Jakarta Sans", system-ui, sans-serif;
  --body:    "Sora", system-ui, sans-serif;

  /* Rhythm */
  --wrap: 1180px;
  --gut: clamp(1.25rem, 4vw, 3rem);
  --section-y: clamp(4.5rem, 9vw, 8rem);
  --radius: 18px;
  --radius-sm: 12px;

  --shadow: 0 1px 2px rgba(28,29,33,.04), 0 18px 40px -24px rgba(28,29,33,.28);
}

/* ---------- reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--body);
  font-weight: 400;
  color: var(--ink);
  background: var(--linen);
  line-height: 1.65;
  font-size: clamp(1rem, 0.97rem + 0.2vw, 1.075rem);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg, iframe { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--display); font-weight: 700; line-height: 1.05; margin: 0; letter-spacing: -0.02em; }
p { margin: 0; }
ol, ul { margin: 0; padding: 0; list-style: none; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gut); }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 1rem; top: -3rem; z-index: 100;
  background: var(--anthracite); color: var(--linen);
  padding: .6rem 1rem; border-radius: 0 0 10px 10px; transition: top .2s;
}
.skip-link:focus { top: 0; }

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

/* ---------- shared atoms ---------- */
.eyebrow {
  font-family: var(--body);
  text-transform: uppercase;
  letter-spacing: .18em;
  font-size: .74rem;
  font-weight: 600;
  color: var(--blue-deep);
  display: inline-flex; align-items: center; gap: .6rem;
  margin: 0 0 1.1rem;
}
.eyebrow.light { color: var(--blue); }
.node-dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--grad);
  box-shadow: 0 0 0 4px rgba(4,153,192,.12);
  flex: none;
}
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}

.btn {
  --btn-bg: var(--anthracite); --btn-fg: var(--linen);
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font-family: var(--display); font-weight: 600; font-size: .95rem;
  letter-spacing: -0.01em;
  padding: .72em 1.4em; border-radius: 999px;
  background: var(--btn-bg); color: var(--btn-fg);
  border: 1.5px solid var(--btn-bg);
  cursor: pointer; transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
  will-change: transform;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 14px 30px -14px rgba(28,29,33,.5); }
.btn-lg { font-size: 1rem; padding: .85em 1.7em; }
.btn-sm { padding: .55em 1.15em; font-size: .9rem; }
.btn-ghost {
  --btn-bg: transparent; --btn-fg: var(--ink);
  border-color: var(--line); background: transparent;
}
.btn-ghost:hover { background: var(--linen-deep); box-shadow: none; }

/* =====================================================================
   Header
   ===================================================================== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--linen) 82%, transparent);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s, background .25s;
}
.site-header.is-stuck {
  border-bottom-color: var(--line-soft);
  background: color-mix(in srgb, var(--linen) 92%, transparent);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 72px; }

.brand { display: inline-flex; align-items: center; gap: .6rem; }
.brand-mark { width: 38px; height: 38px; flex: none; }
.wordmark {
  font-family: var(--display); font-weight: 800; font-size: 1.4rem;
  letter-spacing: -0.03em;
}
.wm-node  { color: var(--blue); }
.wm-point { color: var(--scarlet); }
.wordmark-light .wm-node  { color: #2bb3d6; }
.wordmark-light .wm-point { color: #e2566a; }

.nav { display: flex; align-items: center; }
.nav-menu { display: flex; align-items: center; gap: 2rem; }
.nav-menu a { font-size: .96rem; font-weight: 500; color: var(--ink-soft); transition: color .18s; }
.nav-menu a:hover { color: var(--ink); }
.nav-menu a.btn { color: var(--linen); }
.nav-toggle { display: none; }

/* =====================================================================
   Hero
   ===================================================================== */
.hero { position: relative; overflow: clip; padding-top: clamp(3rem, 6vw, 5.5rem); padding-bottom: var(--section-y); }
.hero-grid {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center;
}
.hero-title {
  font-size: clamp(2.6rem, 1.6rem + 4.4vw, 4.7rem);
  font-weight: 800; letter-spacing: -0.035em;
  margin: 0 0 1.4rem;
}
.hero-lead { font-size: clamp(1.05rem, 1rem + 0.4vw, 1.22rem); color: var(--ink-soft); max-width: 36ch; margin-bottom: 2rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .9rem; }

/* dotted texture, top-right — derived from brand "design elements" */
.hero-texture {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background-image: radial-gradient(var(--line) 1.4px, transparent 1.4px);
  background-size: 26px 26px;
  -webkit-mask-image: radial-gradient(60% 60% at 88% 8%, #000 0%, transparent 70%);
          mask-image: radial-gradient(60% 60% at 88% 8%, #000 0%, transparent 70%);
  opacity: .8;
}

/* Signature node graph */
.constellation { margin: 0; }
.constellation svg { width: 100%; height: auto; overflow: visible; }
.constellation figcaption {
  margin-top: 1.1rem; font-size: .9rem; color: var(--muted);
  text-align: center; max-width: 34ch; margin-inline: auto;
}
.np-label {
  font-family: var(--body); font-size: 14px; font-weight: 500; fill: var(--ink-soft);
  text-anchor: middle; letter-spacing: .01em;
}
.hub-label {
  font-family: var(--display); font-size: 16px; font-weight: 700; fill: #fff;
  text-anchor: middle; letter-spacing: -0.02em;
}
.hub { filter: drop-shadow(0 12px 24px rgba(146,40,80,.35)); }
.constellation .flow { stroke-dasharray: 5 9; }

@media (prefers-reduced-motion: no-preference) {
  .constellation .flow { animation: flow 2.4s linear infinite; }
  .constellation .hub-ring { transform-box: fill-box; transform-origin: center; animation: pulse 4s ease-in-out infinite; }
  .constellation .sat circle { transform-box: fill-box; transform-origin: center; animation: bob 5s ease-in-out infinite; }
  .constellation .sat:nth-child(2) circle { animation-delay: -1.2s; }
  .constellation .sat:nth-child(3) circle { animation-delay: -2.4s; }
  .constellation .sat:nth-child(4) circle { animation-delay: -3.6s; }
}
@keyframes flow  { to { stroke-dashoffset: -56; } }
@keyframes pulse { 0%,100% { transform: scale(1); opacity:.45; } 50% { transform: scale(1.08); opacity:.2; } }
@keyframes bob   { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-5px); } }

/* =====================================================================
   Strip
   ===================================================================== */
.strip { background: var(--anthracite); color: var(--linen); }
.strip-inner { padding-block: clamp(1.6rem, 3vw, 2.2rem); }
.strip p {
  font-family: var(--display); font-weight: 500;
  font-size: clamp(1.15rem, 1rem + 1vw, 1.7rem); letter-spacing: -0.02em; line-height: 1.3;
  max-width: 30ch;
}
.strip strong { color: #fff; font-weight: 700; }
.strip strong::after {
  content: ""; display: block; height: 4px; width: 64px; margin-top: .5rem;
  background: var(--grad); border-radius: 4px;
}

/* =====================================================================
   Sections (shared)
   ===================================================================== */
.section { padding-block: var(--section-y); }
.section-head { max-width: 60ch; margin-bottom: clamp(2.5rem, 5vw, 3.8rem); }
.section-title { font-size: clamp(1.9rem, 1.3rem + 2.4vw, 3rem); letter-spacing: -0.03em; margin-bottom: 1rem; }
.section-intro { font-size: 1.1rem; color: var(--ink-soft); max-width: 52ch; }

/* ---------- Services ---------- */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
.card {
  background: #fff;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 1.7rem 1.5rem 1.8rem;
  box-shadow: var(--shadow);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-6px); border-color: color-mix(in srgb, var(--blue) 35%, var(--line)); box-shadow: 0 24px 48px -28px rgba(28,29,33,.4); }
.card-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 52px; height: 52px; border-radius: 14px;
  background: var(--linen); color: var(--blue-deep);
  margin-bottom: 1.2rem;
  border: 1px solid var(--line-soft);
}
.card-icon svg { width: 26px; height: 26px; }
.card:nth-child(2) .card-icon { color: var(--scarlet); }
.card:nth-child(4) .card-icon { color: var(--scarlet-deep); }
.card h3 { font-size: 1.2rem; margin-bottom: .5rem; }
.card p { font-size: .95rem; color: var(--ink-soft); line-height: 1.6; }

/* ---------- How it works ---------- */
.how { background: var(--linen-deep); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.5rem, 4vw, 3rem); counter-reset: step; }
.step { position: relative; padding-top: 2.4rem; }
.step::before {
  content: ""; position: absolute; top: 14px; left: 0; right: -1.5rem; height: 2px;
  background: repeating-linear-gradient(90deg, var(--line) 0 8px, transparent 8px 16px);
}
.steps .step:last-child::before { right: 0; }
.step-num {
  position: absolute; top: 0; left: 0;
  font-family: var(--display); font-weight: 800; font-size: 1rem;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
  background-color: var(--linen); padding-right: .8rem; transform: translateY(-30%);
}
.step h3 { font-size: 1.35rem; margin: .3rem 0 .6rem; }
.step p { color: var(--ink-soft); max-width: 34ch; }

/* ---------- About (dark) ---------- */
.about { background: var(--anthracite); color: var(--linen); position: relative; overflow: clip; }
.about::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background-image: repeating-linear-gradient(135deg, rgba(4,153,192,.16) 0 2px, transparent 2px 13px);
  -webkit-mask-image: radial-gradient(46% 60% at 100% 100%, #000, transparent 72%);
          mask-image: radial-gradient(46% 60% at 100% 100%, #000, transparent 72%);
}
.about-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(2.5rem, 5vw, 5rem); align-items: start; }
.about-title { font-size: clamp(2.1rem, 1.4rem + 2.8vw, 3.4rem); margin-bottom: 1.4rem; }
.about-lead p { color: #cfcdc8; max-width: 46ch; margin-bottom: 1.1rem; }
.about-lead .about-meta { color: #8f8d88; font-size: .96rem; }
.values { display: grid; gap: 1.4rem; }
.values li { border-top: 1px solid rgba(243,240,232,.16); padding-top: 1.2rem; }
.values h3 { font-size: 1.3rem; color: #fff; margin-bottom: .35rem; }
.values h3::before {
  content: ""; display: inline-block; width: 10px; height: 10px; border-radius: 50%;
  background: var(--grad); margin-right: .6rem; vertical-align: middle;
}
.values p { color: #b9b7b2; font-size: .98rem; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: clamp(2.5rem, 5vw, 4.5rem); align-items: stretch; }
.contact-copy { align-self: center; }
.contact-email {
  display: inline-flex; align-items: center; gap: .8rem; margin: 1.8rem 0 1.6rem;
  font-family: var(--display); font-weight: 600; font-size: clamp(1.1rem, 1rem + .6vw, 1.45rem);
  letter-spacing: -0.02em; color: var(--ink);
  border-bottom: 2px solid transparent; transition: color .18s, border-color .18s;
}
.contact-email:hover { color: var(--scarlet); border-bottom-color: var(--scarlet); }
.contact-email-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 12px; flex: none;
  background: var(--grad); color: #fff;
}
.contact-email-icon svg { width: 22px; height: 22px; }
.contact-address { font-style: normal; color: var(--ink-soft); line-height: 1.8; font-size: 1.02rem; }
.contact-address strong { color: var(--ink); font-family: var(--display); font-weight: 700; }

.map-frame {
  border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line);
  box-shadow: var(--shadow); min-height: 340px; background: var(--linen-deep);
}
.map-frame iframe { width: 100%; height: 100%; min-height: 340px; border: 0; filter: grayscale(.2) contrast(1.02); }

/* =====================================================================
   Footer
   ===================================================================== */
.site-footer { background: var(--blue-ink); color: #cfdfe6; }
.footer-inner {
  display: grid; grid-template-columns: auto 1fr auto; gap: 1.5rem 2.5rem; align-items: center;
  padding-block: clamp(2.2rem, 4vw, 3rem);
}
.footer-brand { display: inline-flex; align-items: center; gap: .6rem; }
.footer-tag { font-family: var(--display); font-weight: 500; color: #e7eef1; letter-spacing: -0.01em; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 1.4rem; justify-content: flex-end; }
.footer-nav a { color: #a9c3cd; font-size: .95rem; transition: color .18s; }
.footer-nav a:hover { color: #fff; }
.footer-base {
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  padding-block: 1.2rem; border-top: 1px solid rgba(207,223,230,.14);
  font-size: .85rem; color: #7fa0ab;
}

/* =====================================================================
   Scroll reveal
   ===================================================================== */
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
  .reveal.in { opacity: 1; transform: none; }
}

/* =====================================================================
   Responsive
   ===================================================================== */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .constellation { max-width: 460px; margin-inline: auto; order: -1; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; gap: 2rem; }
  .step { padding-top: 0; padding-left: 3.2rem; }
  .step::before { display: none; }
  .step-num { transform: none; background-color: transparent; font-size: 1.4rem; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-nav { justify-content: flex-start; }
}

@media (max-width: 640px) {
  .cards { grid-template-columns: 1fr; }

  .nav-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 12px;
    background: var(--linen); cursor: pointer; position: relative;
  }
  .nav-toggle-bar, .nav-toggle-bar::before, .nav-toggle-bar::after {
    content: ""; position: absolute; width: 20px; height: 2px; background: var(--ink);
    border-radius: 2px; transition: transform .25s, opacity .2s;
  }
  .nav-toggle-bar { left: 12px; }
  .nav-toggle-bar::before { top: -6px; left: 0; }
  .nav-toggle-bar::after  { top: 6px; left: 0; }
  .nav-toggle[aria-expanded="true"] .nav-toggle-bar { background: transparent; }
  .nav-toggle[aria-expanded="true"] .nav-toggle-bar::before { transform: translateY(6px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] .nav-toggle-bar::after  { transform: translateY(-6px) rotate(-45deg); }

  .nav-menu {
    position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--linen); border-bottom: 1px solid var(--line-soft);
    padding: .5rem var(--gut) 1.2rem;
    box-shadow: 0 20px 40px -28px rgba(28,29,33,.5);
    clip-path: inset(0 0 100% 0); opacity: 0; pointer-events: none;
    transition: clip-path .28s ease, opacity .2s ease;
  }
  .nav-menu.open { clip-path: inset(0 0 0 0); opacity: 1; pointer-events: auto; }
  .nav-menu li { border-top: 1px solid var(--line-soft); }
  .nav-menu li:first-child { border-top: 0; }
  .nav-menu a { display: block; padding: .95rem .2rem; font-size: 1.05rem; }
  .nav-menu a.btn { margin-top: .8rem; justify-content: center; }
}