/* Delta-G Solution — design system */
:root {
  --ink: #14202b;
  --ink-soft: #3a4a58;
  --mist: #e8eef2;
  --paper: #f4f7f9;
  --line: #c5d0d8;
  --accent: #2038c8;
  --accent-deep: #182a9a;
  --accent-glow: rgba(32, 56, 200, 0.14);
  --warm: #c47a3a;
  --max: 1120px;
  --nav-h: 4.25rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --font-display: "Syne", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--accent-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent);
}

h1,
h2,
h3,
.brand {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--ink);
}

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

.wrap {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

/* —— Atmosphere —— */
.site-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(32, 56, 200, 0.12), transparent 55%),
    radial-gradient(ellipse 60% 40% at 90% 10%, rgba(196, 122, 58, 0.08), transparent 50%),
    linear-gradient(180deg, #eef3f6 0%, var(--paper) 40%, #edf2f5 100%);
}

.site-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.45), transparent 70%);
}

/* —— Nav —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-h);
  backdrop-filter: blur(12px);
  background: rgba(244, 247, 249, 0.82);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(244, 247, 249, 0.94);
}

.nav {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  font-size: 1.05rem;
  color: var(--ink);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
}

.brand .logo-mark,
img.logo-mark {
  width: 2.75rem;
  height: auto;
  flex-shrink: 0;
  display: block;
  border-radius: 4px;
}

.brand .logo-mark svg {
  display: none;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.05rem;
  line-height: 1.1;
}

.brand-text strong {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.brand-text span {
  font-weight: 500;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-family: var(--font-body);
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  margin: 0 0 1.1rem;
}

.brand-lockup .logo-mark,
.brand-lockup img.logo-mark {
  width: clamp(5.5rem, 14vw, 8.5rem);
  height: auto;
  border-radius: 6px;
}

.brand-lockup .wordmark {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4.2vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0;
  color: var(--ink);
  line-height: 1.05;
}

.brand-lockup .wordmark small {
  display: block;
  font-family: var(--font-body);
  font-size: 0.42em;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: 0.35rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem 1.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-weight: 550;
}

.nav-links a:hover,
.nav-links a[aria-current="page"],
.nav-drop-btn:hover,
.has-dropdown.is-open > .nav-drop-btn {
  color: var(--ink);
}

.nav-drop-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border: none;
  background: none;
  padding: 0;
  font: inherit;
  font-size: 0.92rem;
  font-weight: 550;
  color: var(--ink-soft);
  cursor: pointer;
}

.nav-drop-btn .chevron {
  width: 0.45rem;
  height: 0.45rem;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-1px);
  transition: transform 0.25s var(--ease);
}

.has-dropdown.is-open .chevron {
  transform: rotate(225deg) translateY(-1px);
}

.has-dropdown {
  position: relative;
}

.dropdown {
  position: absolute;
  top: calc(100% + 0.85rem);
  left: 0;
  min-width: 16.5rem;
  margin: 0;
  padding: 0.45rem 0;
  list-style: none;
  background: rgba(255, 255, 255, 0.97);
  border: 1px solid var(--line);
  border-radius: 2px;
  box-shadow: 0 12px 28px rgba(20, 32, 43, 0.08);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease), visibility 0.2s;
  z-index: 60;
}

.has-dropdown.is-open .dropdown {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.dropdown a {
  display: block;
  padding: 0.65rem 1rem;
  font-size: 0.9rem;
  white-space: nowrap;
}

.dropdown a:hover,
.dropdown a[aria-current="page"] {
  background: var(--accent-glow);
  color: var(--ink);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1rem;
  background: var(--ink);
  color: #f4f7f9 !important;
  text-decoration: none !important;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: 2px;
  transition: background 0.25s var(--ease), transform 0.25s var(--ease);
}

.nav-cta:hover {
  background: var(--accent-deep);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: transparent;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 2px;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 1.1rem;
  height: 1.5px;
  margin: 0.28rem auto;
  background: var(--ink);
}

@media (max-width: 860px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: fixed;
    inset: var(--nav-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.75rem 1.25rem 1.25rem;
    background: rgba(244, 247, 249, 0.98);
    border-bottom: 1px solid var(--line);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.35s var(--ease), opacity 0.35s var(--ease);
  }

  .nav-links.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links li {
    border-bottom: 1px solid var(--line);
  }

  .nav-links a,
  .nav-drop-btn {
    display: flex;
    width: 100%;
    padding: 0.85rem 0;
    justify-content: space-between;
  }

  .has-dropdown {
    border-bottom: none;
  }

  .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: transparent;
    padding: 0 0 0.5rem 0.75rem;
    min-width: 0;
    display: none;
  }

  .has-dropdown.is-open .dropdown {
    display: block;
  }

  .dropdown a {
    padding: 0.55rem 0;
    white-space: normal;
  }

  .nav-links .nav-cta {
    margin-top: 0.75rem;
    justify-content: center;
  }
}

/* —— Buttons —— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.35rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 650;
  border-radius: 2px;
  border: none;
  cursor: pointer;
  text-decoration: none !important;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), color 0.25s var(--ease);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--accent);
  color: #f7fffd !important;
}

.btn-primary:hover {
  background: var(--accent-deep);
  color: #fff !important;
}

.btn-ghost {
  background: transparent;
  color: var(--ink) !important;
  box-shadow: inset 0 0 0 1.5px var(--ink);
}

.btn-ghost:hover {
  background: var(--ink);
  color: var(--paper) !important;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
}

/* —— Hero —— */
.hero {
  position: relative;
  min-height: calc(100svh - var(--nav-h) - 7.5rem);
  display: grid;
  align-items: start;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero-visual {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-visual svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: clamp(2rem, 6vh, 3.5rem) 0 clamp(3.5rem, 9vh, 5.5rem);
  max-width: 38rem;
}

.hero .brand-mark {
  display: none;
}

.hero h1 {
  font-size: clamp(1.55rem, 3.2vw, 2.15rem);
  font-weight: 650;
  margin: 0 0 0.85rem;
  max-width: 22ch;
}

.hero .lede {
  font-size: 1.08rem;
  max-width: 36ch;
  margin-bottom: 1.75rem;
}

.hero-content,
.reveal {
  opacity: 0;
  transform: translateY(18px);
  animation: rise 0.9s var(--ease) forwards;
}

.hero-content {
  animation-delay: 0.12s;
}

@keyframes rise {
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes draw {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes float-node {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-6px);
  }
}

.hero-visual .edge {
  stroke-dasharray: 280;
  stroke-dashoffset: 280;
  animation: draw 1.6s var(--ease) 0.35s forwards;
}

.hero-visual .node {
  animation: float-node 5s ease-in-out infinite;
  transform-box: fill-box;
  transform-origin: center;
}

.hero-visual .node:nth-child(odd) {
  animation-delay: 0.6s;
}

/* —— Sections —— */
.section {
  padding: clamp(3.5rem, 8vw, 5.5rem) 0;
}

.section + .section {
  border-top: 1px solid var(--line);
}

.section-kicker {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.65rem;
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.35rem);
  margin: 0 0 0.75rem;
  max-width: 18ch;
}

.section-intro {
  max-width: 42ch;
  margin-bottom: 2.25rem;
}

/* Service links — not cards; editorial list */
.service-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.service-item {
  display: grid;
  grid-template-columns: 4.5rem 1fr auto;
  gap: 1rem 1.5rem;
  align-items: baseline;
  padding: 1.45rem 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
  transition: background 0.25s var(--ease), padding 0.25s var(--ease);
}

.service-item:hover {
  background: var(--accent-glow);
  padding-left: 0.75rem;
  padding-right: 0.75rem;
}

.service-item .idx {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent);
}

.service-item h3 {
  margin: 0 0 0.35rem;
  font-size: 1.25rem;
}

.service-item p {
  margin: 0;
  max-width: 48ch;
  font-size: 0.98rem;
}

.service-item .arrow {
  font-size: 1.25rem;
  color: var(--ink-soft);
  align-self: center;
  transition: transform 0.25s var(--ease), color 0.25s var(--ease);
}

.service-item:hover .arrow {
  transform: translateX(4px);
  color: var(--accent);
}

@media (max-width: 640px) {
  .service-item {
    grid-template-columns: 2.5rem 1fr;
  }

  .service-item .arrow {
    display: none;
  }
}

/* Audience strip */
.audience {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

.audience h3 {
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
}

@media (max-width: 700px) {
  .audience {
    grid-template-columns: 1fr;
  }
}

/* CTA band */
.cta-band {
  position: relative;
  padding: clamp(3rem, 7vw, 4.5rem) 0;
  background:
    linear-gradient(135deg, rgba(32, 56, 200, 0.12), transparent 55%),
    linear-gradient(180deg, #dfe8ec, #e8eef2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.cta-band h2 {
  margin: 0 0 0.65rem;
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  max-width: 18ch;
}

.cta-band p {
  max-width: 40ch;
  margin-bottom: 1.5rem;
}

/* —— Inner pages —— */
.page-hero {
  padding: clamp(2.75rem, 7vw, 4.5rem) 0 2.5rem;
  border-bottom: 1px solid var(--line);
}

.page-hero .breadcrumb {
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-bottom: 1rem;
}

.page-hero .breadcrumb a {
  color: var(--ink-soft);
  text-decoration: none;
}

.page-hero .breadcrumb a:hover {
  color: var(--accent);
}

.page-hero h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  margin: 0 0 0.85rem;
  max-width: 16ch;
}

.page-hero .lede {
  max-width: 48ch;
  font-size: 1.12rem;
  margin: 0;
}

.prose {
  max-width: 40rem;
}

.prose h2 {
  font-size: 1.45rem;
  margin: 2.25rem 0 0.75rem;
}

.prose h3 {
  font-size: 1.1rem;
  margin: 1.75rem 0 0.5rem;
}

.prose ul {
  margin: 0 0 1.25rem;
  padding-left: 1.15rem;
  color: var(--ink-soft);
}

.prose li {
  margin-bottom: 0.45rem;
}

.prose li::marker {
  color: var(--accent);
}

.split {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: start;
}

@media (max-width: 800px) {
  .split {
    grid-template-columns: 1fr;
  }
}

.aside-panel {
  padding: 1.5rem 0 0;
  border-top: 2px solid var(--accent);
}

.aside-panel h3 {
  margin: 0 0 0.75rem;
  font-size: 1.05rem;
}

.aside-panel ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.aside-panel li {
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.cred-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.cred-list li {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
}

.cred-list .deg {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--accent);
  font-size: 0.95rem;
}

.cred-list strong {
  display: block;
  color: var(--ink);
  margin-bottom: 0.2rem;
}

.cred-list span {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

@media (max-width: 520px) {
  .cred-list li {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }
}

/* Contact */
.contact-form {
  display: grid;
  gap: 1rem;
  max-width: 28rem;
}

.contact-form label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ink);
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  font: inherit;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.7);
  color: var(--ink);
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.contact-form .hp {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.contact-form {
  position: relative;
}

.form-status {
  margin: 0.25rem 0 0;
  font-size: 0.92rem;
}

.form-status.is-ok {
  color: #1a6b45;
}

.form-status.is-err {
  color: #a33c2c;
}

.contact-form button:disabled {
  opacity: 0.65;
  cursor: wait;
  transform: none;
}

/* Footer */
.site-footer {
  padding: 2.5rem 0 2rem;
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.5rem;
}

.footer-grid .brand {
  font-size: 1rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links a {
  color: var(--ink-soft);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-copy {
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  font-size: 0.82rem;
}

/* Reveal on scroll */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: none;
}

/* Workflow page */
.workflow {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.workflow-step {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 1rem 1.5rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--line);
}

.workflow-step .step-num {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--accent);
  font-size: 1rem;
  padding-top: 0.2rem;
}

.workflow-step h2 {
  margin: 0 0 0.45rem;
  font-size: 1.3rem;
}

.workflow-step p {
  margin: 0;
  max-width: 52ch;
}

@media (max-width: 560px) {
  .workflow-step {
    grid-template-columns: 3rem 1fr;
  }
}

/* On-prem / trust callout on home */
.trust-block {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.5rem;
  align-items: start;
}

.trust-block h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.55rem, 3vw, 2rem);
  max-width: 18ch;
}

.trust-points {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--accent);
}

.trust-points li {
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.98rem;
}

.trust-points strong {
  color: var(--ink);
  display: block;
  margin-bottom: 0.15rem;
  font-family: var(--font-display);
  font-size: 1rem;
}

@media (max-width: 800px) {
  .trust-block {
    grid-template-columns: 1fr;
  }
}