:root {
  /* Light theme (default) */
  --bg: #FAFAFC;
  --surface: #FFFFFF;
  --surface-2: #F2F3F7;
  --border: #E5E6EC;
  --accent: #6366F1;
  --accent-soft: #6366F11f;
  --amber: #B45309;
  --text: #14151C;
  --muted: #63656F;
  --nav-bg: #FAFAFCcc;
  --link-stroke: #C9CBD6;
  --mock-bg: #F2F3F7;
  --mock-row: #E5E6EC;
  --mock-dot: #D6D8E1;
  --glow-1: #6366F114;
  --glow-2: #B4530912;
  --mono: 'IBM Plex Mono', monospace;
  --display: 'Space Grotesk', sans-serif;
  --body: 'Inter', sans-serif;
}

html[data-theme="dark"] {
  --bg: #0A0B0F;
  --surface: #12141A;
  --surface-2: #171A22;
  --border: #22242E;
  --accent: #6366F1;
  --accent-soft: #6366F133;
  --amber: #F5A524;
  --text: #E9EAF0;
  --muted: #8B8D9A;
  --nav-bg: #0A0B0Fcc;
  --link-stroke: #3A3D4A;
  --mock-bg: #0D0E13;
  --mock-row: #1D2029;
  --mock-dot: #2E313D;
  --glow-1: #6366F11a;
  --glow-2: #F5A5241a;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  line-height: 1.6;
  background-image:
    radial-gradient(circle at 15% 8%, var(--glow-1) 0%, transparent 45%),
    radial-gradient(circle at 85% 92%, var(--glow-2) 0%, transparent 40%);
  background-attachment: fixed;
  transition: background-color .25s ease, color .25s ease;
}

a {
  color: inherit;
  text-decoration: none;
}

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 32px;
}

::selection {
  background: var(--accent);
  color: #fff;
}

/* THEME TOGGLE */
.theme-toggle {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  flex-shrink: 0;
}

.theme-toggle:hover {
  border-color: var(--accent);
}

.theme-toggle svg {
  width: 17px;
  height: 17px;
  stroke: var(--text);
}

.theme-toggle .icon-moon {
  display: none;
}

html[data-theme="dark"] .theme-toggle .icon-sun {
  display: none;
}

html[data-theme="dark"] .theme-toggle .icon-moon {
  display: block;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* NAV */
nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--nav-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: background-color .25s ease, border-color .25s ease;
}

nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -0.01em;
}

.logo-mark {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 32px;
  font-size: 14.5px;
  color: var(--muted);
}

.nav-links a {
  transition: color .15s;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--text);
  font-weight: 500;
}

.nav-cta {
  font-size: 13.5px;
  font-family: var(--mono);
  padding: 9px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  transition: border-color .15s, background .15s;
}

.nav-cta:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

@media (max-width:850px) {
  .nav-links {
    display: none;
  }
}

/* HERO */
.hero {
  padding: 96px 0 80px;
  position: relative;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: .14em;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
}

.eyebrow::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.hero h1 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(38px, 5.4vw, 64px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  max-width: 800px;
}

.hero h1 span {
  color: var(--accent);
}

.hero p.sub {
  max-width: 560px;
  margin-top: 22px;
  font-size: 17px;
  color: var(--muted);
}

.hero-ctas {
  display: flex;
  gap: 14px;
  margin-top: 36px;
  flex-wrap: wrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 14.5px;
  padding: 13px 22px;
  border-radius: 9px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: transform .15s, box-shadow .15s;
  box-shadow: 0 0 0 0 var(--accent-soft);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px -8px var(--accent);
}

.btn-secondary {
  border: 1px solid var(--border);
  color: var(--text);
  font-weight: 500;
  font-size: 14.5px;
  padding: 13px 22px;
  border-radius: 9px;
  transition: border-color .15s;
}

.btn-secondary:hover {
  border-color: var(--muted);
}

/* DIAGRAM */
.diagram-wrap {
  margin-top: 64px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
  padding: 36px 28px;
  overflow: hidden;
}

.diagram-label {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-bottom: 18px;
}

svg .node-core {
  fill: var(--accent);
}

svg .node-school {
  fill: var(--surface-2);
  stroke: var(--accent);
  stroke-width: 1.5;
}

svg .node-role {
  fill: var(--surface-2);
  stroke: var(--link-stroke);
  stroke-width: 1.2;
}

svg .link {
  stroke: var(--link-stroke);
  stroke-width: 1.2;
}

svg .link-active {
  stroke: var(--accent);
  stroke-width: 1.4;
  stroke-dasharray: 4 4;
  animation: dash 3.5s linear infinite;
}

svg text {
  font-family: var(--mono);
  fill: var(--muted);
}

svg .lbl-core {
  fill: #fff;
  font-weight: 600;
}

@keyframes dash {
  to {
    stroke-dashoffset: -40;
  }
}

.pulse {
  animation: pulse 2.6s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .45; }
}

@media (prefers-reduced-motion: reduce) {
  svg .link-active { animation: none; }
  .pulse { animation: none; }
}

/* SECTIONS */
section {
  padding: 90px 0;
}

.section-head {
  max-width: 700px;
  margin-bottom: 48px;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.eyebrow-mini {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--amber);
  text-transform: uppercase;
  letter-spacing: .12em;
  margin-bottom: 12px;
}

h2 {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(28px, 3.8vw, 42px);
  letter-spacing: -0.018em;
  line-height: 1.15;
}

.section-head p {
  color: var(--muted);
  margin-top: 14px;
  font-size: 16.5px;
}

/* GRID UTILITIES */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

@media (max-width: 900px) {
  .grid-3, .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ABOUT */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: start;
}

.about-copy p {
  color: var(--muted);
  font-size: 15.5px;
  margin-bottom: 16px;
}

.about-copy p strong {
  color: var(--text);
  font-weight: 600;
}

.stat-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.stat {
  background: var(--surface);
  padding: 24px 20px;
}

.stat .num {
  font-family: var(--display);
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
}

.stat .lbl {
  font-size: 12.5px;
  color: var(--muted);
  margin-top: 4px;
}

@media (max-width:820px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
}

/* PRODUCTS / ERP MODULE CARD */
.product-card {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--surface);
  display: grid;
  grid-template-columns: 1fr 1fr;
  overflow: hidden;
  margin-bottom: 30px;
}

.product-copy {
  padding: 44px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.product-tag {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-bottom: 14px;
}

.product-copy h3 {
  font-family: var(--display);
  font-size: 26px;
  font-weight: 600;
  margin-bottom: 12px;
}

.product-copy p {
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 22px;
}

.role-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 26px;
}

.chip {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 5px 10px;
  border-radius: 20px;
}

.product-visual {
  background: linear-gradient(180deg, var(--surface-2), var(--bg));
  position: relative;
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px;
  border-left: 1px solid var(--border);
}

.mock-window {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--mock-bg);
  overflow: hidden;
}

.mock-bar {
  display: flex;
  gap: 6px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

.mock-bar span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mock-dot);
}

.mock-body {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.mock-row {
  height: 9px;
  border-radius: 4px;
  background: var(--mock-row);
}

.mock-row.short {
  width: 40%;
}

.mock-row.accent {
  background: var(--accent-soft);
}

.click-to-view {
  position: absolute;
  bottom: 24px;
  right: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--accent);
  padding: 9px 14px;
  border-radius: 24px;
  transition: transform .15s, background .15s;
}

.click-to-view:hover {
  background: var(--accent);
  transform: translateY(-2px);
}

.click-to-view svg {
  width: 13px;
  height: 13px;
}

@media (max-width:820px) {
  .product-card {
    grid-template-columns: 1fr;
  }
  .product-visual {
    border-left: none;
    border-top: 1px solid var(--border);
  }
}

/* CARDS */
.card {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  padding: 30px;
  transition: border-color .15s, transform .15s;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.card-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--accent);
}

.card-icon svg {
  width: 20px;
  height: 20px;
}

.card h3 {
  font-family: var(--display);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.card p {
  color: var(--muted);
  font-size: 14.5px;
}

/* ACCORDION FAQ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  font-family: var(--display);
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  padding: 10px 0;
}

.faq-question::after {
  content: '+';
  font-size: 22px;
  color: var(--accent);
  margin-left: 20px;
  transition: transform .2s ease;
}

.faq-item.active .faq-question::after {
  content: '−';
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .25s ease-out;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 10px 0;
}

/* BLOG */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.blog-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  padding: 26px;
  transition: border-color .15s, transform .15s;
}

.blog-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.blog-date {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--muted);
  margin-bottom: 14px;
}

.blog-card h4 {
  font-family: var(--display);
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.35;
}

.blog-card p {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 16px;
}

.read-more {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

@media (max-width:820px) {
  .blog-grid {
    grid-template-columns: 1fr;
  }
}

/* CONTACT CARD & FORMS */
.contact-card {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--surface);
  padding: 52px 44px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 24px;
}

.contact-card h2 {
  margin-bottom: 8px;
}

.contact-card p {
  color: var(--muted);
  font-size: 15px;
}

@media (max-width:700px) {
  .contact-card {
    grid-template-columns: 1fr;
    text-align: left;
  }
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 13.5px;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text);
}

.form-input, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: var(--body);
  font-size: 14.5px;
  color: var(--text);
  outline: none;
  transition: border-color .15s;
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--accent);
}

/* HELP CENTER LAYOUT */
.help-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  margin-top: 40px;
}

.help-sidebar {
  position: sticky;
  top: 100px;
  height: fit-content;
}

.help-nav-title {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  color: var(--muted);
  letter-spacing: .08em;
  margin-bottom: 12px;
}

.help-nav-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.help-nav-links a {
  font-size: 14.5px;
  color: var(--muted);
  transition: color .15s;
}

.help-nav-links a:hover, .help-nav-links a.active {
  color: var(--text);
  font-weight: 500;
}

.help-content h3 {
  font-family: var(--display);
  font-size: 22px;
  margin: 32px 0 16px;
}

.help-content p {
  color: var(--muted);
  font-size: 15.5px;
  margin-bottom: 18px;
}

.help-content ul {
  padding-left: 20px;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 15px;
}

.help-content li {
  margin-bottom: 8px;
}

@media (max-width: 800px) {
  .help-layout {
    grid-template-columns: 1fr;
  }
  .help-sidebar {
    position: static;
    margin-bottom: 30px;
  }
}

/* FOOTER */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  background: var(--surface);
}

footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-links {
  display: flex;
  gap: 26px;
  font-size: 13px;
  color: var(--muted);
  font-family: var(--mono);
  flex-wrap: wrap;
}

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

.footer-copy {
  font-size: 13px;
  color: var(--muted);
}