/* ============================================================
   UIK — style.css (homepage)
   Light theme: cream body #F6F7FA, dark ink #16202E
   Accent: navy #1E3A8A family + ice-blue #BFDBFE
   ============================================================ */

:root {
  --ink: #16202E;
  --ink-soft: #3A4759;
  --muted: #5A6B84;
  --cream: #F6F7FA;
  --white: #FFFFFF;
  --navy: #1E3A8A;
  --navy-deep: #152A63;
  --navy-soft: #2B4CB4;
  --ice: #BFDBFE;
  --ice-tint: #E9F1FC;
  --ice-faint: #F0F5FD;
  --line: #D8E0EE;
  --line-soft: #E6EBF4;
  --shadow-sm: 0 2px 8px rgba(22, 32, 46, 0.06);
  --shadow-md: 0 10px 30px rgba(22, 32, 46, 0.10);
  --shadow-lg: 0 22px 60px rgba(21, 42, 99, 0.16);
  --radius: 16px;
  --radius-sm: 10px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-size: 16px;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--ink);
  background-color: var(--cream);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
  padding: 13px 26px;
  border-radius: 10px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.18s ease, background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.btn--navy {
  background-color: var(--navy);
  color: #FFFFFF;
}

.btn--navy:hover {
  background-color: var(--navy-deep);
  transform: translateY(-2px);
}

.btn--ghost {
  background-color: transparent;
  color: var(--navy);
  border-color: var(--navy);
}

.btn--ghost:hover {
  background-color: var(--ice-tint);
}

.btn--ice {
  background-color: var(--ice);
  color: var(--navy-deep);
}

.btn--ice:hover {
  background-color: #A8CCF8;
  transform: translateY(-2px);
}

.btn--outline-light {
  background-color: transparent;
  color: #FFFFFF;
  border-color: #FFFFFF;
}

.btn--outline-light:hover {
  background-color: #FFFFFF;
  color: var(--navy-deep);
}

.btn--block {
  width: 100%;
}

/* ============================================================
   CURSOR NAVIGATION (.cursor-nav)
   ============================================================ */
.cursor-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--cream);
  border-bottom: 1px solid var(--line-soft);
}

.cursor-nav__inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.cursor-nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.cursor-arrow {
  display: inline-block;
  width: 16px;
  height: 22px;
  background-color: var(--navy);
  clip-path: polygon(0% 0%, 0% 100%, 42% 66%, 72% 88%, 86% 78%, 56% 56%, 100% 56%);
}

.cursor-nav__wordmark {
  font-weight: 800;
  font-size: 22px;
  letter-spacing: 0.16em;
  color: var(--navy);
}

.cursor-nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.cursor-nav__link {
  font-weight: 600;
  font-size: 15px;
  color: var(--ink-soft);
  transition: color 0.15s ease;
}

.cursor-nav__link:hover {
  color: var(--navy);
}

.cursor-nav__cta {
  font-weight: 700;
  font-size: 15px;
  color: #FFFFFF;
  background-color: var(--navy);
  padding: 11px 22px;
  border-radius: 10px;
  transition: background-color 0.18s ease, transform 0.18s ease;
}

.cursor-nav__cta:hover {
  background-color: var(--navy-deep);
  transform: translateY(-1px);
}

.cursor-nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 2px solid var(--navy);
  border-radius: 10px;
  cursor: pointer;
}

.cursor-nav__toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--navy);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ============================================================
   WINDOW STACK HERO (.window-hero)
   ============================================================ */
.window-hero {
  position: relative;
  background-color: var(--cream);
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden;
}

.window-hero__inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 88px 24px 96px;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.window-hero__eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--navy);
  background-color: var(--ice-tint);
  padding: 7px 14px;
  border-radius: 999px;
  margin-bottom: 22px;
}

.window-hero__title {
  font-size: 52px;
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 22px;
}

.window-hero__lead {
  font-size: 18px;
  line-height: 1.65;
  color: var(--muted);
  max-width: 560px;
  margin-bottom: 32px;
}

.window-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 30px;
}

.window-hero__facts {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--muted);
}

.window-hero__fact-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--navy-soft);
}

/* --- window stack visual --- */
.window-hero__visual {
  display: flex;
  justify-content: center;
}

.window-stack {
  position: relative;
  width: 440px;
  height: 380px;
}

.window-stack__back,
.window-stack__front {
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

.window-stack__back {
  position: absolute;
  top: 0;
  right: 0;
  width: 320px;
  height: 270px;
  background-color: var(--ice-faint);
  border: 2px solid var(--ice);
  box-shadow: var(--shadow-sm);
}

.window-stack__front {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 360px;
  height: 300px;
  background-color: var(--white);
  border: 2px solid var(--navy);
  box-shadow: var(--shadow-lg);
}

.window-stack__titlebar {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 38px;
  padding: 0 14px;
  background-color: var(--ice);
  border-bottom: 2px solid var(--navy);
  border-radius: 14px 14px 0 0;
}

.window-stack__back .window-stack__titlebar {
  background-color: var(--ice);
  border-bottom: 1px solid var(--line);
  border-radius: 14px 14px 0 0;
}

.window-stack__titlebar--navy {
  background-color: var(--navy);
  border-bottom: 1px solid var(--navy);
}

.window-stack__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--navy-soft);
}

.window-stack__titlebar--navy .window-stack__dot {
  background-color: var(--ice);
}

.window-stack__body {
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.window-stack__line {
  height: 12px;
  border-radius: 6px;
  background-color: var(--line);
}

.window-stack__back .window-stack__line {
  background-color: var(--ice);
}

.window-stack__front .window-stack__line {
  background-color: var(--line-soft);
}

.window-stack__line--w30 { width: 30%; }
.window-stack__line--w40 { width: 40%; }
.window-stack__line--w50 { width: 50%; }
.window-stack__line--w55 { width: 55%; }
.window-stack__line--w60 { width: 60%; }
.window-stack__line--w65 { width: 65%; }
.window-stack__line--w70 { width: 70%; }
.window-stack__line--w80 { width: 80%; }
.window-stack__line--w85 { width: 85%; }

/* ============================================================
   SECTION HEADERS
   ============================================================ */
.section-head {
  max-width: 720px;
  margin-bottom: 48px;
}

.section-head__eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--navy);
  margin-bottom: 12px;
}

.section-head__title {
  font-size: 36px;
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin-bottom: 14px;
}

.section-head__lead {
  font-size: 17px;
  line-height: 1.6;
  color: var(--muted);
}

/* ============================================================
   STATEMENT SECTION
   ============================================================ */
.statement-section {
  background-color: var(--white);
  padding: 80px 0;
  border-bottom: 1px solid var(--line-soft);
}

.statement-section__text {
  font-size: 30px;
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
  max-width: 900px;
  border-left: 5px solid var(--navy);
  padding-left: 28px;
}

/* ============================================================
   STATS SECTION
   ============================================================ */
.stats-section {
  background-color: var(--navy);
  padding: 72px 0;
}

.stats-section__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  text-align: center;
  padding: 28px 16px;
  border-radius: var(--radius);
  background-color: var(--navy-deep);
}

.stat-card__num {
  display: block;
  font-size: 46px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ice);
  line-height: 1;
  margin-bottom: 10px;
}

.stat-card__label {
  font-size: 15px;
  font-weight: 600;
  color: #DCE6F8;
}

/* ============================================================
   CAPABILITIES / TABS SECTION
   ============================================================ */
.capabilities-section {
  background-color: var(--cream);
  padding: 96px 0;
}

.tabs {
  background-color: var(--white);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.tabs__nav {
  display: flex;
  gap: 4px;
  padding: 10px;
  background-color: var(--ice-faint);
  border-bottom: 1px solid var(--line-soft);
}

.tabs__btn {
  flex: 1;
  padding: 14px 18px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-soft);
  background-color: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color 0.18s ease, color 0.18s ease;
}

.tabs__btn:hover {
  color: var(--navy);
}

.tabs__btn.is-active {
  background-color: var(--navy);
  color: #FFFFFF;
}

.tabs__panels {
  padding: 36px;
}

.tabs__panel h3 {
  font-size: 24px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 14px;
}

.tabs__panel p {
  font-size: 16px;
  color: var(--muted);
  margin-bottom: 20px;
}

.tabs__list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.tabs__list li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-soft);
}

.tabs__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 12px;
  height: 12px;
  background-color: var(--navy);
  clip-path: polygon(0% 0%, 0% 100%, 42% 66%, 72% 88%, 86% 78%, 56% 56%, 100% 56%);
}

/* ============================================================
   PROCESS SECTION
   ============================================================ */
.process-section {
  background-color: var(--white);
  padding: 96px 0;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.process-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.process-step {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 24px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line-soft);
  align-items: start;
}

.process-step:last-child {
  border-bottom: none;
}

.process-step__num {
  font-size: 34px;
  font-weight: 800;
  color: var(--navy);
  line-height: 1;
}

.process-step__body h3 {
  font-size: 22px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 8px;
}

.process-step__body p {
  font-size: 16px;
  color: var(--muted);
  max-width: 720px;
}

/* ============================================================
   MODELS / COMPARISON TABLE SECTION
   ============================================================ */
.models-section {
  background-color: var(--cream);
  padding: 96px 0;
}

.compare-table {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.compare-table__head {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  background-color: var(--navy);
}

.compare-table__col {
  padding: 18px 26px;
  font-size: 15px;
  font-weight: 700;
  color: #FFFFFF;
}

.compare-table__col + .compare-table__col {
  border-left: 1px solid var(--navy-deep);
}

.compare-table__row {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  background-color: var(--white);
}

.compare-table__row:nth-child(even) {
  background-color: var(--ice-faint);
}

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

.compare-table__model {
  padding: 26px;
  border-right: 1px solid var(--line-soft);
}

.compare-table__model h3 {
  font-size: 20px;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 8px;
}

.compare-table__note {
  font-size: 14px;
  color: var(--muted);
}

.compare-table__detail {
  padding: 26px;
}

.compare-table__detail ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.compare-table__detail li {
  position: relative;
  padding-left: 24px;
  font-size: 15px;
  color: var(--ink-soft);
}

.compare-table__detail li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--navy-soft);
}

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact-section {
  background-color: var(--white);
  padding: 96px 0;
  border-top: 1px solid var(--line-soft);
}

.contact-section__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

.contact-section__lead {
  font-size: 17px;
  color: var(--muted);
  margin-bottom: 30px;
}

.contact-section__methods {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.contact-method__label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}

.contact-method__value {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

a.contact-method__value:hover {
  color: var(--navy);
}

.contact-form {
  background-color: var(--cream);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

.contact-form__field {
  margin-bottom: 20px;
}

.contact-form__field label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-soft);
  margin-bottom: 7px;
}

.contact-form__field input,
.contact-form__field textarea {
  width: 100%;
  font-size: 15px;
  font-family: inherit;
  color: var(--ink);
  background-color: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 13px 15px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.contact-form__field input:focus,
.contact-form__field textarea:focus {
  outline: none;
  border-color: var(--navy);
  box-shadow: 0 0 0 3px var(--ice);
}

.contact-form__field textarea {
  resize: vertical;
}

.contact-form__note {
  margin-top: 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--navy);
}

/* ============================================================
   CTA SECTION (split band)
   ============================================================ */
.cta-section {
  background-color: var(--navy);
  padding: 96px 0;
}

.cta-section__band {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  align-items: center;
}

.cta-section__copy h2 {
  font-size: 34px;
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.015em;
  color: #FFFFFF;
  margin-bottom: 12px;
}

.cta-section__copy p {
  font-size: 17px;
  color: var(--ice);
}

.cta-section__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: flex-end;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background-color: var(--cream);
  border-top: 3px solid var(--navy);
  padding: 64px 0 0;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
  gap: 40px;
  padding-bottom: 48px;
}

.site-footer__brand {
  margin-bottom: 16px;
}

.site-footer__blurb {
  font-size: 15px;
  color: var(--muted);
  max-width: 300px;
}

.site-footer__heading {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 16px;
}

.site-footer__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.site-footer__list a {
  font-size: 15px;
  color: var(--muted);
  transition: color 0.15s ease;
}

.site-footer__list a:hover {
  color: var(--navy);
}

.site-footer__text {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.5;
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  padding: 22px 0;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  color: var(--muted);
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .fade-up {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 960px) {
  .window-hero__inner {
    grid-template-columns: 1fr;
    padding: 64px 24px 72px;
  }

  .window-hero__visual {
    order: 2;
  }

  .window-stack {
    width: 100%;
    max-width: 440px;
  }

  .window-hero__title {
    font-size: 42px;
  }

  .cta-section__band {
    grid-template-columns: 1fr;
  }

  .cta-section__actions {
    justify-content: flex-start;
  }

  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 760px) {
  .cursor-nav__toggle {
    display: flex;
  }

  .cursor-nav__links {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background-color: var(--cream);
    border-bottom: 1px solid var(--line-soft);
    box-shadow: var(--shadow-md);
    padding: 12px 24px 20px;
    display: none;
  }

  .cursor-nav__links.is-open {
    display: flex;
  }

  .cursor-nav__link {
    padding: 14px 0;
    border-bottom: 1px solid var(--line-soft);
  }

  .cursor-nav__cta {
    margin-top: 14px;
    text-align: center;
  }

  .window-hero__title {
    font-size: 34px;
  }

  .statement-section__text {
    font-size: 24px;
  }

  .stats-section__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .tabs__nav {
    flex-direction: column;
  }

  .tabs__panels {
    padding: 24px;
  }

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

  .process-step {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .compare-table__head {
    display: none;
  }

  .compare-table__row {
    grid-template-columns: 1fr;
  }

  .compare-table__model {
    border-right: none;
    border-bottom: 1px solid var(--line-soft);
  }

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

  .site-footer__grid {
    grid-template-columns: 1fr;
  }
}