/* ============================================================
   VORTEXCORE — Integrated Computer Systems Design
   Theme: DARK with VOLT-LIME accent
   Palette: bg #0F110B | panel #1A1D12 | text #F2F4E8
            volt #C6F432 | olive-lime #8FA832
   ============================================================ */

:root {
  --bg: #0F110B;
  --panel: #1A1D12;
  --ink: #F2F4E8;
  --volt: #C6F432;
  --olive: #8FA832;
  --dark: #0F110B;
  --line: #C6F432;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  background-color: var(--bg);
  overflow-x: hidden;
}

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

a {
  color: var(--volt);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

ul,
ol {
  list-style-position: inside;
}

.wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------------- HUD PANEL NAV ---------------- */

.hud-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--bg);
  border-bottom: 1px solid var(--volt);
}

.hud-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 20px;
}

.brand {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--volt);
  white-space: nowrap;
}

.brand:hover {
  text-decoration: none;
}

.nav-panels {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.nav-cell {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  background-color: var(--panel);
  border: 1px solid var(--volt);
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.2;
}

.nav-cell:hover {
  text-decoration: none;
  background-color: #23281A;
}

.nav-cell__dot {
  width: 7px;
  height: 7px;
  background-color: var(--volt);
  flex: 0 0 auto;
}

.nav-cell.is-active {
  background-color: var(--volt);
  color: var(--dark);
}

.nav-cell.is-active .nav-cell__dot {
  background-color: var(--dark);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background-color: var(--panel);
  border: 1px solid var(--volt);
  cursor: pointer;
}

.nav-toggle__bar {
  height: 2px;
  width: 100%;
  background-color: var(--volt);
}

/* ---------------- TORQUE HERO ---------------- */

.torque-hero {
  background-color: var(--bg);
  border-bottom: 1px solid var(--volt);
}

.torque-hero__grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  padding-top: 72px;
  padding-bottom: 72px;
}

.torque-hero__content {
  max-width: 680px;
}

.eyebrow {
  display: inline-block;
  padding: 6px 14px;
  background-color: var(--volt);
  color: var(--dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.16em;
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(42px, 5vw, 64px);
  line-height: 1.06;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 18px;
  line-height: 1.75;
  color: var(--ink);
  max-width: 640px;
  margin-bottom: 32px;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.cta-primary,
.cta-secondary,
.cta-dark {
  display: inline-block;
  padding: 14px 26px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.cta-primary {
  background-color: var(--volt);
  color: var(--dark);
  border: 1px solid var(--volt);
}

.cta-primary:hover {
  background-color: #D5FF55;
  text-decoration: none;
}

.cta-secondary {
  background-color: transparent;
  color: var(--volt);
  border: 1px solid var(--volt);
}

.cta-secondary:hover {
  background-color: var(--panel);
  text-decoration: none;
}

.cta-dark {
  background-color: var(--dark);
  color: var(--ink);
  border: 1px solid var(--dark);
}

.cta-dark:hover {
  background-color: #1E2214;
  text-decoration: none;
}

/* ---------------- TORQUE ROTOR GRAPHIC ---------------- */

.rotor {
  position: relative;
  width: 140px;
  height: 140px;
  flex: 0 0 auto;
}

.rotor__ring {
  position: absolute;
  inset: 0;
  border: 3px solid var(--volt);
  border-radius: 50%;
}

.rotor__blade {
  position: absolute;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--volt);
  right: 20px;
  bottom: 20px;
}

.rotor__hub {
  position: absolute;
  width: 20px;
  height: 20px;
  background-color: var(--dark);
  border: 2px solid var(--volt);
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

/* ---------------- SHARED BAND HEADINGS ---------------- */

.kicker {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.18em;
  color: var(--olive);
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--ink);
  margin-bottom: 22px;
}

.section-lead {
  font-size: 18px;
  color: var(--ink);
  max-width: 780px;
  margin-bottom: 34px;
}

.prose p {
  margin-bottom: 18px;
  max-width: 860px;
}

/* ---------------- OVERVIEW / WHY BANDS ---------------- */

.band-overview,
.band-sectors,
.band-why {
  background-color: var(--bg);
  padding-top: 72px;
  padding-bottom: 72px;
  border-bottom: 1px solid var(--volt);
}

/* ---------------- CAPABILITY DASHBOARD ---------------- */

.cap-dashboard {
  background-color: var(--panel);
  padding-top: 72px;
  padding-bottom: 72px;
  border-bottom: 1px solid var(--volt);
}

.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.cap-cell {
  background-color: var(--bg);
  border: 1px solid var(--volt);
  padding: 22px;
  min-height: 148px;
}

.cap-cell__glyph {
  display: block;
  width: 12px;
  height: 12px;
  background-color: var(--volt);
  margin-bottom: 16px;
}

.cap-cell__label {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}

.cap-cell__desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--olive);
}

/* ---------------- SECTOR CHIPS + LIST ---------------- */

.sector-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 26px 0 34px;
}

.sector-chip {
  padding: 8px 16px;
  background-color: var(--panel);
  border: 1px solid var(--volt);
  color: var(--volt);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.sector-list {
  list-style: none;
  max-width: 860px;
}

.sector-list li {
  margin-bottom: 16px;
  padding-left: 18px;
  border-left: 3px solid var(--volt);
}

.sector-list strong {
  color: var(--volt);
}

/* ---------------- DUO PRINCIPLES ---------------- */

.band-principles {
  background-color: var(--bg);
  padding-top: 72px;
  padding-bottom: 72px;
  border-bottom: 1px solid var(--volt);
}

.duo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.duo-panel {
  padding: 40px;
}

.duo-core {
  background-color: var(--volt);
  color: var(--dark);
}

.duo-method {
  background-color: var(--panel);
  border: 1px solid var(--volt);
  color: var(--ink);
}

.duo-panel__title {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 14px;
}

.duo-panel__lead {
  font-size: 16px;
  margin-bottom: 20px;
}

.duo-panel__list {
  list-style: none;
  padding: 0;
}

.duo-panel__list li {
  margin-bottom: 12px;
  padding-left: 24px;
  position: relative;
}

.duo-core .duo-panel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 10px;
  height: 10px;
  background-color: var(--dark);
}

.duo-method .duo-panel__list li {
  padding-left: 0;
}

.duo-method .duo-panel__list--ordered li {
  margin-bottom: 14px;
  font-weight: 600;
}

.duo-method .duo-panel__list--ordered li b {
  color: var(--volt);
}

/* ---------------- METRIC RING ROW ---------------- */

.band-metrics {
  background-color: var(--panel);
  padding-top: 72px;
  padding-bottom: 72px;
  border-bottom: 1px solid var(--volt);
}

.metric-row {
  display: flex;
  margin-top: 12px;
}

.metric {
  flex: 1;
  text-align: center;
  padding: 8px 20px;
}

.metric + .metric {
  border-left: 1px solid var(--volt);
}

.metric__num {
  display: block;
  font-size: clamp(38px, 5vw, 54px);
  font-weight: 800;
  line-height: 1.1;
  color: var(--volt);
  margin-bottom: 10px;
}

.metric__label {
  font-size: 14px;
  color: var(--olive);
  letter-spacing: 0.04em;
}

/* ---------------- CTA BAND ---------------- */

.cta-band {
  background-color: var(--volt);
  padding-top: 76px;
  padding-bottom: 76px;
}

.cta-band__inner {
  text-align: center;
}

.cta-band__title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 18px;
}

.cta-band__sub {
  font-size: 17px;
  color: var(--dark);
  max-width: 640px;
  margin: 0 auto 30px;
}

/* ---------------- ROTOR FOOTER ---------------- */

.rotor-footer {
  background-color: var(--bg);
  padding-top: 4px;
}

.rotor-footer__row {
  border-top: 1px solid var(--volt);
  padding-top: 22px;
  padding-bottom: 22px;
}

.rotor-footer__row--links {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.rotor-footer__brand {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--volt);
}

.rotor-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.rotor-footer__nav a {
  color: var(--ink);
  font-size: 15px;
}

.rotor-footer__nav a:hover {
  color: var(--volt);
  text-decoration: none;
}

.rotor-footer__row--contact {
  text-align: center;
  font-size: 15px;
}

.rotor-footer__row--contact a {
  color: var(--ink);
}

.rotor-footer__row--contact a:hover {
  color: var(--volt);
  text-decoration: none;
}

.rotor-footer__row--legal {
  text-align: center;
  font-size: 14px;
  color: var(--olive);
}

.rotor-footer__row--legal a {
  color: var(--olive);
}

.rotor-footer__row--legal a:hover {
  color: var(--volt);
  text-decoration: none;
}

.rotor-footer__sep {
  margin: 0 8px;
}

/* ---------------- SERVICES PAGE ---------------- */

.service-list {
  background-color: var(--bg);
  padding-top: 24px;
  padding-bottom: 72px;
  border-bottom: 1px solid var(--volt);
}

.service-block {
  padding: 40px 0;
  border-bottom: 1px solid var(--panel);
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 8px 22px;
}

.service-block:last-child {
  border-bottom: none;
}

.service-block__glyph {
  width: 14px;
  height: 14px;
  background-color: var(--volt);
  margin-top: 8px;
}

.service-block__title {
  font-size: 24px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 14px;
}

.service-block p {
  grid-column: 2;
  max-width: 860px;
  margin-bottom: 14px;
}

/* ---------------- PROCESS OVERVIEW (SERVICES) ---------------- */

.band-process {
  background-color: var(--panel);
  padding-top: 72px;
  padding-bottom: 72px;
  border-bottom: 1px solid var(--volt);
}

.process-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 30px;
}

.process-list li {
  background-color: var(--bg);
  border: 1px solid var(--volt);
  padding: 24px;
}

.process-list__num {
  display: block;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--olive);
  margin-bottom: 12px;
}

.process-list h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--volt);
  margin-bottom: 8px;
}

.process-list p {
  font-size: 14px;
  color: var(--ink);
  line-height: 1.6;
}

/* ---------------- CONTACT PAGE ---------------- */

.contact-grid {
  background-color: var(--bg);
  padding-top: 72px;
  padding-bottom: 72px;
  border-bottom: 1px solid var(--volt);
}

.contact-grid__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-form-panel {
  background-color: var(--panel);
  border: 1px solid var(--volt);
  padding: 34px;
}

.form-field {
  margin-bottom: 18px;
}

.form-field label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--olive);
  margin-bottom: 6px;
  text-transform: uppercase;
}

.form-field input,
.form-field textarea {
  width: 100%;
  padding: 12px 14px;
  background-color: var(--bg);
  border: 1px solid var(--olive);
  color: var(--ink);
  font-size: 16px;
  font-family: inherit;
}

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--volt);
}

.form-field textarea {
  resize: vertical;
}

.contact-form__status {
  margin-top: 14px;
  font-size: 15px;
  color: var(--ink);
}

.contact-form__status.is-success {
  color: var(--volt);
}

.contact-form__status.is-error {
  color: #F2F4E8;
}

.contact-info-panel {
  padding: 8px 0;
}

.info-block {
  margin-bottom: 26px;
  padding-left: 18px;
  border-left: 3px solid var(--volt);
}

.info-block__label {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--olive);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.info-block p {
  font-size: 16px;
  color: var(--ink);
  line-height: 1.6;
}

.info-block a {
  color: var(--volt);
}

/* ---------------- FAQ ACCORDION (CONTACT) ---------------- */

.band-faq {
  background-color: var(--panel);
  padding-top: 72px;
  padding-bottom: 72px;
  border-bottom: 1px solid var(--volt);
}

.faq-item {
  background-color: var(--bg);
  border: 1px solid var(--volt);
  margin-bottom: 14px;
}

.faq-item__trigger {
  display: block;
  width: 100%;
  text-align: left;
  padding: 18px 22px;
  background: none;
  border: none;
  color: var(--ink);
  font-size: 17px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  position: relative;
}

.faq-item__trigger::after {
  content: "+";
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  color: var(--volt);
}

.faq-item.is-open .faq-item__trigger::after {
  content: "−";
}

.faq-item__body {
  display: none;
  padding: 0 22px 20px;
}

.faq-item.is-open .faq-item__body {
  display: block;
}

.faq-item__body p {
  font-size: 15px;
  color: var(--ink);
  max-width: 820px;
}

/* ---------------- SCROLL REVEAL (JS-ENHANCED) ---------------- */

.fade-up {
  opacity: 1;
  transform: none;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: no-preference) {
  .js .fade-up:not(.is-visible) {
    opacity: 0;
    transform: translateY(24px);
  }
}

/* ---------------- RESPONSIVE ---------------- */

@media (max-width: 980px) {
  .torque-hero__grid {
    flex-direction: column;
    align-items: flex-start;
    gap: 32px;
  }

  .rotor {
    align-self: center;
    margin-top: 8px;
  }
}

@media (max-width: 960px) {
  .process-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-grid__inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .cap-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .duo-grid {
    grid-template-columns: 1fr;
  }

  .metric-row {
    flex-wrap: wrap;
  }

  .metric {
    flex: 1 1 45%;
    border-left: none;
  }

  .metric + .metric {
    border-left: 1px solid var(--volt);
  }

  .metric:nth-child(odd) {
    border-left: none;
  }
}

@media (max-width: 720px) {
  .nav-toggle {
    display: flex;
  }

  .nav-panels {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    background-color: var(--bg);
    border-bottom: 1px solid var(--volt);
    padding: 16px 24px;
  }

  .nav-panels.is-open {
    display: flex;
  }

  .nav-cell {
    justify-content: center;
  }

  .cap-grid {
    grid-template-columns: 1fr;
  }

  .process-list {
    grid-template-columns: 1fr;
  }

  .contact-form-panel {
    padding: 24px;
  }

  .metric-row {
    display: block;
  }

  .metric {
    border-top: 1px solid var(--volt);
    padding: 18px 10px;
  }

  .metric + .metric {
    border-left: none;
  }

  .metric:first-child {
    border-top: none;
  }
}

@media (max-width: 480px) {
  .hud-nav__inner {
    flex-wrap: wrap;
  }

  .brand {
    font-size: 19px;
  }

  .hero-title {
    font-size: 36px;
  }

  .hero-ctas {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-primary,
  .cta-secondary,
  .cta-dark {
    text-align: center;
  }

  .rotor {
    width: 130px;
    height: 130px;
  }
}