/* ============================================================
   LITONE — Integrated Systems Design
   Unique palette: warm linen + deep evergreen + persimmon coral
   ============================================================ */

:root {
  --bg: #F7F4EE;
  --bg-soft: #EFE9DD;
  --bg-soft-2: #E7E0D1;
  --card: #FFFFFF;
  --ink: #1A2A26;
  --ink-strong: #101D1A;
  --muted: #4E5F58;
  --brand: #0C4A41;
  --brand-dark: #07312B;
  --brand-deep: #05241F;
  --nav-bg: #0A3731;
  --nav-ink: #EAF0EA;
  --accent: #D64A24;
  --accent-dark: #B53B1A;
  --gold: #C99A3D;
  --line: #DCD4C4;
  --line-dark: #1E4A43;
  --shadow: 0 14px 40px rgba(10, 55, 49, 0.10);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  background-color: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  line-height: 1.15;
  color: var(--ink-strong);
  font-weight: 700;
  letter-spacing: -0.01em;
}

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

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

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 40px;
}

/* ============================================================
   SIDEBAR NAVIGATION (fixed, class-based)
   ============================================================ */

.home-page {
  padding-left: 268px;
}

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 268px;
  height: 100vh;
  background-color: var(--nav-bg);
  color: var(--nav-ink);
  display: flex;
  flex-direction: column;
  z-index: 1000;
  overflow-y: auto;
}

.site-nav .nav-brand {
  padding: 34px 30px 26px;
  border-bottom: 1px solid var(--line-dark);
}

.site-nav .nav-brand .brand-mark {
  display: inline-block;
  width: 46px;
  height: 46px;
  line-height: 46px;
  text-align: center;
  background-color: var(--accent);
  color: #FFFFFF;
  font-weight: 800;
  font-size: 22px;
  border-radius: 10px;
  margin-bottom: 18px;
}

.site-nav .nav-brand .brand-name {
  font-size: 22px;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: 0.02em;
}

.site-nav .nav-brand .brand-tag {
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-top: 6px;
}

.site-nav .nav-links {
  list-style: none;
  padding: 22px 18px;
  flex: 1;
}

.site-nav .nav-links li {
  margin-bottom: 6px;
}

.site-nav .nav-links a {
  display: block;
  padding: 12px 16px;
  color: #C7D6CF;
  font-size: 15px;
  font-weight: 600;
  border-radius: 8px;
  border-left: 3px solid transparent;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.site-nav .nav-links a:hover,
.site-nav .nav-links a.active {
  background-color: var(--brand);
  color: #FFFFFF;
  border-left-color: var(--accent);
}

.site-nav .nav-links a .nav-num {
  display: inline-block;
  width: 22px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.site-nav .nav-foot {
  padding: 22px 30px 30px;
  border-top: 1px solid var(--line-dark);
  font-size: 13px;
  color: #9DB8AF;
}

.site-nav .nav-foot .foot-line {
  margin-bottom: 6px;
}

.site-nav .nav-foot a {
  color: #DCE8E2;
  font-weight: 600;
}

/* Mobile top bar + hamburger */
.mobile-bar {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 62px;
  background-color: var(--nav-bg);
  color: #FFFFFF;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 1001;
}

.mobile-bar .mobile-brand {
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.02em;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 6px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 3px;
  background-color: #FFFFFF;
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: #000000;
  z-index: 999;
}

/* ============================================================
   HERO — asymmetric two-column with large visual panel
   ============================================================ */

.hero {
  position: relative;
  padding: 84px 0 76px;
  background:
    radial-gradient(1200px 500px at 80% -10%, #E4D9C2 0%, #F7F4EE 60%),
    var(--bg);
}

.hero .hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.hero .kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.hero .kicker::before {
  content: "";
  width: 26px;
  height: 2px;
  background-color: var(--accent);
}

.hero h1 {
  font-size: clamp(36px, 4.4vw, 58px);
  line-height: 1.05;
  margin-bottom: 24px;
  font-weight: 800;
}

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

.hero .lead {
  font-size: 18px;
  color: var(--muted);
  max-width: 560px;
  margin-bottom: 32px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 700;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

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

.btn-primary:hover {
  background-color: var(--accent-dark);
}

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

.btn-ghost:hover {
  background-color: var(--brand);
  color: #FFFFFF;
}

/* Visual panel */
.visual-panel {
  position: relative;
  background-color: var(--brand-dark);
  border-radius: 18px;
  padding: 30px;
  color: #EAF0EA;
  box-shadow: var(--shadow);
}

.visual-panel .panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-dark);
}

.visual-panel .panel-head .dots {
  display: flex;
  gap: 6px;
}

.visual-panel .panel-head .dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.visual-panel .dot-red { background-color: #F0523C; }
.visual-panel .dot-gold { background-color: #E2B54A; }
.visual-panel .dot-green { background-color: #43C78F; }

.visual-panel .panel-head .panel-label {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 700;
}

.visual-panel .code-line {
  font-family: "SF Mono", "Cascadia Code", "Consolas", monospace;
  font-size: 13px;
  line-height: 1.9;
  color: #C9DDD4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.visual-panel .code-line .kw { color: #8FD4BC; }
.visual-panel .code-line .fn { color: #F2B968; }
.visual-panel .code-line .str { color: #E8896B; }
.visual-panel .code-line .num { color: #A9B8FF; }

.visual-panel .panel-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 26px;
}

.visual-panel .panel-stat {
  background-color: var(--brand);
  border-radius: 12px;
  padding: 16px;
  text-align: center;
}

.visual-panel .panel-stat .stat-num {
  font-size: 26px;
  font-weight: 800;
  color: #FFFFFF;
}

.visual-panel .panel-stat .stat-label {
  font-size: 12px;
  color: #A9C4BA;
  letter-spacing: 0.06em;
  margin-top: 4px;
}

.visual-panel .chip {
  position: absolute;
  top: -18px;
  right: -16px;
  background-color: var(--gold);
  color: var(--ink-strong);
  font-weight: 800;
  font-size: 13px;
  padding: 10px 16px;
  border-radius: 999px;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.18);
}

/* ============================================================
   STAT STRIP
   ============================================================ */

.stat-strip {
  background-color: var(--brand-dark);
  color: #EAF0EA;
  padding: 48px 0;
}

.stat-strip .strip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-strip .strip-item .strip-num {
  font-size: 40px;
  font-weight: 800;
  color: #FFFFFF;
}

.stat-strip .strip-item .strip-num span {
  color: var(--gold);
}

.stat-strip .strip-item .strip-label {
  font-size: 14px;
  color: #A9C4BA;
  letter-spacing: 0.04em;
  margin-top: 6px;
}

/* ============================================================
   CAPABILITIES — numbered list section
   ============================================================ */

.capabilities-section {
  padding: 96px 0;
  background-color: var(--bg);
}

.section-head {
  max-width: 720px;
  margin-bottom: 56px;
}

.section-head .section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: clamp(28px, 3vw, 40px);
  margin-bottom: 16px;
}

.section-head p {
  color: var(--muted);
  font-size: 17px;
}

.cap-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
}

.cap-item {
  display: flex;
  gap: 22px;
  padding: 34px 30px 34px 0;
  border-bottom: 1px solid var(--line);
}

.cap-item:nth-child(odd) {
  padding-right: 30px;
  border-right: 1px solid var(--line);
}

.cap-item:nth-child(even) {
  padding-left: 30px;
}

.cap-item .cap-num {
  font-size: 40px;
  font-weight: 800;
  color: var(--brand);
  line-height: 1;
  min-width: 56px;
}

.cap-item .cap-num small {
  color: var(--gold);
  font-size: 18px;
  font-weight: 700;
}

.cap-item h3 {
  font-size: 20px;
  margin-bottom: 8px;
}

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

/* ============================================================
   COMPARISON TABLE
   ============================================================ */

.compare-section {
  padding: 96px 0;
  background-color: var(--bg-soft);
}

.compare-wrap {
  overflow-x: auto;
  border-radius: 16px;
  box-shadow: var(--shadow);
  background-color: var(--card);
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

.compare-table th,
.compare-table td {
  padding: 20px 24px;
  text-align: left;
  font-size: 15px;
  border-bottom: 1px solid var(--line);
}

.compare-table thead th {
  background-color: var(--brand-dark);
  color: #FFFFFF;
  font-size: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.compare-table thead th.hl {
  background-color: var(--accent);
}

.compare-table tbody th {
  color: var(--ink-strong);
  font-weight: 700;
  background-color: var(--bg-soft-2);
  width: 220px;
}

.compare-table td {
  color: var(--muted);
}

.compare-table .yes {
  color: #177A4A;
  font-weight: 700;
}

.compare-table .no {
  color: #A33D2B;
  font-weight: 700;
}

/* ============================================================
   OFFERINGS — alternating two-column rows
   ============================================================ */

.offerings-section {
  padding: 96px 0;
  background-color: var(--bg);
}

.offering-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 40px 0;
  border-bottom: 1px solid var(--line);
}

.offering-row:last-child {
  border-bottom: 0;
}

.offering-row .offering-text h3 {
  font-size: 26px;
  margin-bottom: 14px;
}

.offering-row .offering-text p {
  color: var(--muted);
  margin-bottom: 14px;
}

.offering-row .offering-text ul {
  list-style: none;
  margin-top: 12px;
}

.offering-row .offering-text ul li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 15px;
}

.offering-row .offering-text ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 10px;
  height: 10px;
  background-color: var(--accent);
  border-radius: 3px;
}

.offering-visual {
  border-radius: 16px;
  background-color: var(--brand);
  color: #EAF0EA;
  padding: 34px;
  position: relative;
  overflow: hidden;
}

.offering-visual .ov-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 700;
  margin-bottom: 18px;
}

.offering-visual .ov-big {
  font-size: 44px;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 10px;
}

.offering-visual p {
  color: #B7CDC4;
  font-size: 15px;
}

.offering-row.flip .offering-text {
  order: 2;
}

.offering-row.flip .offering-visual {
  order: 1;
  background-color: var(--brand-dark);
}

/* ============================================================
   STATEMENT BAND
   ============================================================ */

.statement-band {
  padding: 88px 0;
  background-color: var(--brand-deep);
  color: #EAF0EA;
  text-align: center;
}

.statement-band h2 {
  color: #FFFFFF;
  font-size: clamp(26px, 3.2vw, 40px);
  max-width: 820px;
  margin: 0 auto 22px;
  font-weight: 700;
}

.statement-band h2 span {
  color: var(--gold);
}

.statement-band p {
  color: #A9C4BA;
  font-size: 17px;
  max-width: 640px;
  margin: 0 auto 34px;
}

/* ============================================================
   FAQ ACCORDION
   ============================================================ */

.faq-section {
  padding: 96px 0;
  background-color: var(--bg-soft);
}

.faq-list {
  max-width: 840px;
  margin: 0 auto;
}

.faq-item {
  background-color: var(--card);
  border-radius: 12px;
  margin-bottom: 14px;
  box-shadow: 0 6px 18px rgba(10, 55, 49, 0.06);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: none;
  border: 0;
  padding: 22px 26px;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink-strong);
  text-align: left;
  cursor: pointer;
  font-family: inherit;
}

.faq-question .faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  line-height: 28px;
  text-align: center;
  border-radius: 50%;
  background-color: var(--bg-soft);
  color: var(--brand);
  font-weight: 800;
  transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.faq-item.open .faq-icon {
  background-color: var(--accent);
  color: #FFFFFF;
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding: 0 26px 24px;
  color: var(--muted);
  font-size: 15px;
}

/* ============================================================
   CONTACT
   ============================================================ */

.contact-section {
  padding: 96px 0;
  background-color: var(--bg);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-info .info-block {
  margin-bottom: 28px;
}

.contact-info .info-label {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 8px;
}

.contact-info .info-value {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink-strong);
}

.contact-info .info-value a {
  color: var(--brand);
}

.contact-form {
  background-color: var(--card);
  border-radius: 16px;
  padding: 34px;
  box-shadow: var(--shadow);
}

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

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-strong);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 13px 16px;
  font-size: 15px;
  font-family: inherit;
  color: var(--ink);
  background-color: var(--bg);
  border: 2px solid var(--line);
  border-radius: 8px;
  transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--brand);
}

.form-group textarea {
  min-height: 130px;
  resize: vertical;
}

.form-note {
  font-size: 13px;
  color: var(--muted);
  margin-top: 12px;
}

.form-success {
  display: none;
  background-color: #E2F2EA;
  color: #11603D;
  border: 1px solid #A8D8C0;
  padding: 14px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  margin-top: 16px;
}

.form-success.show {
  display: block;
}

/* ============================================================
   FOOTER — compact single row
   ============================================================ */

.site-footer {
  background-color: var(--brand-deep);
  color: #C7D6CF;
  padding: 28px 0;
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-row .footer-brand {
  font-weight: 800;
  color: #FFFFFF;
  font-size: 18px;
}

.footer-row .footer-brand span {
  color: var(--gold);
}

.footer-links {
  display: flex;
  gap: 26px;
}

.footer-links a {
  color: #DCE8E2;
  font-size: 14px;
  font-weight: 600;
}

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

.footer-legal {
  font-size: 13px;
  color: #9DB8AF;
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */

.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1024px) {
  .home-page {
    padding-left: 0;
  }

  .site-nav {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }

  .site-nav.open {
    transform: translateX(0);
  }

  .mobile-bar {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-overlay.show {
    display: block;
  }

  .hero {
    padding-top: 122px;
  }

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

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

  .cap-item:nth-child(odd),
  .cap-item:nth-child(even) {
    padding: 28px 0;
    border-right: 0;
  }

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

  .offering-row,
  .offering-row.flip {
    grid-template-columns: 1fr;
  }

  .offering-row.flip .offering-text,
  .offering-row.flip .offering-visual {
    order: 0;
  }

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

@media (max-width: 600px) {
  .container {
    padding: 0 24px;
  }

  .hero h1 {
    font-size: 34px;
  }

  .visual-panel {
    padding: 20px;
  }

  .visual-panel .panel-stats {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 8px;
  }

  .visual-panel .chip {
    right: -6px;
  }

  .stat-strip .strip-grid {
    grid-template-columns: 1fr 1fr;
  }

  .stat-strip .strip-item .strip-num {
    font-size: 30px;
  }

  .footer-row {
    flex-direction: column;
    text-align: center;
    justify-content: center;
  }

  .hero-cta {
    flex-direction: column;
  }

  .btn {
    justify-content: center;
  }
}