/* ==========================================================================
   RIXLE PRIVATE LIMITED - ENTERPRISE CORE STYLESHEET
   Production Version 2026.2
   ========================================================================== */

/* 1. ROOT VARIABLES & GLOBAL RESET */
:root {
  --dark: #121613;
  --dark-panel: #19201A;
  --dark-surface: #151B16;
  --green-primary: #2F5233;
  --green-hover: #1E3821;
  --green-subtle: rgba(47, 82, 51, 0.15);
  --amber: #D9A441;
  --amber-hover: #c29134;
  --amber-subtle: rgba(217, 164, 65, 0.12);
  --light: #F4F6F3;
  --light-sub: #C8CDC4;
  --border-dark: rgba(255, 255, 255, 0.08);
  --border-light: #E0E4DC;
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --font-heading: 'Barlow Condensed', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --transition: all 0.25s ease-in-out;
}

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

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

body {
  background-color: var(--dark);
  color: var(--light-sub);
  font-family: var(--font-main);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Accessibility Skip Link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--amber);
  color: var(--dark);
  padding: 8px 16px;
  z-index: 2000;
  font-weight: 600;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 0;
}

/* Typography Helpers */
h1, h2, h3, h4 {
  color: var(--light);
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  line-height: 1.15;
}

em {
  font-style: normal;
  color: var(--amber);
}

.amber-text { color: var(--amber); }
.light-text { color: var(--light); }
.light-subtext { color: var(--light-sub); }
.mono { font-family: var(--font-mono); }

/* Layout Wrappers & Utilities */
.wrap {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.bg-panel { background-color: var(--dark-panel); }
.grid-2-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--amber);
  letter-spacing: 1.5px;
  margin-bottom: 12px;
}

.section-head {
  margin-bottom: 48px;
}
.section-head.center-head {
  text-align: center;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}
.section-head h2 {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: var(--font-main);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
}

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

.btn-line-light {
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--light);
}
.btn-line-light:hover {
  border-color: var(--amber);
  color: var(--amber);
}

.btn-line {
  border-color: var(--green-primary);
  color: var(--light);
}
.btn-line:hover {
  background-color: var(--green-primary);
}

.btn-full { width: 100%; }

/* Inline Copy Button */
.copy-inline-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.85rem;
  margin-left: 6px;
  opacity: 0.7;
  transition: var(--transition);
}
.copy-inline-btn:hover { opacity: 1; transform: scale(1.1); }
.copy-inline-btn.copied::after {
  content: '✓';
  color: var(--amber);
  margin-left: 4px;
}

/* 2. TOP UTILITY BAR */
.top-bar {
  background-color: #0c100d;
  border-bottom: 1px solid var(--border-dark);
  font-size: 0.8rem;
  padding: 8px 0;
  color: var(--light-sub);
}
.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.top-bar-left, .top-bar-right {
  display: flex;
  align-items: center;
  gap: 20px;
}
.top-info-item {
  display: flex;
  align-items: center;
  gap: 6px;
}
.top-info-item a { color: inherit; text-decoration: none; }
.top-info-item a:hover { color: var(--amber); }
.icon-svg { width: 14px; height: 14px; fill: var(--amber); }
.top-portal-link { color: var(--amber); font-weight: 600; font-size: 0.8rem; }

/* 3. HEADER & NAVIGATION */
#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(18, 22, 19, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-dark);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--light);
  letter-spacing: 1px;
}
.navlinks {
  display: flex;
  gap: 24px;
}
.navlinks a {
  color: var(--light-sub);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}
.navlinks a:hover, .navlinks a.active {
  color: var(--amber);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: none;
  border: none;
  cursor: pointer;
}
.menu-toggle span {
  width: 100%;
  height: 2px;
  background-color: var(--light);
  transition: var(--transition);
}

/* Mobile Drawer */
.nav-scrim {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 900;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}
.mobile-menu {
  position: fixed;
  top: 0;
  right: -300px;
  width: 300px;
  height: 100vh;
  background: var(--dark-panel);
  z-index: 950;
  padding: 80px 24px 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: var(--transition);
  border-left: 1px solid var(--border-dark);
}
.mobile-menu a {
  color: var(--light);
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 500;
}
body.nav-open .nav-scrim { opacity: 1; pointer-events: auto; }
body.nav-open .mobile-menu { right: 0; }

/* 4. DYNAMIC BACKGROUND SECTIONS */
.hero.bg-overlay-section {
  position: relative;
  background-color: var(--dark);
  background-image: linear-gradient(180deg, rgba(18, 22, 19, 0.85) 0%, rgba(18, 22, 19, 0.95) 100%),
                    url('../img/hero-facility.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 100px 0 80px;
  overflow: hidden;
}

.workflow-section.bg-overlay-section {
  position: relative;
  background-color: var(--dark-panel);
  background-image: linear-gradient(180deg, rgba(25, 32, 26, 0.92) 0%, rgba(18, 22, 19, 0.96) 100%),
                    url('../img/facility-floor.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  padding: 96px 0;
}

.tech-section.bg-overlay-section {
  position: relative;
  background-color: var(--dark);
  background-image: linear-gradient(135deg, rgba(18, 22, 19, 0.94) 0%, rgba(30, 56, 33, 0.85) 100%),
                    url('../img/tech-bg.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 96px 0;
}

/* 5. HERO COMPONENTS */
.hero-photo-layer, .hero-vector-backdrop {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero-svg-skyline { width: 100%; height: 100%; opacity: 0.6; }
.hero-inner { position: relative; z-index: 2; max-width: 900px; }

.hero-tag-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--green-subtle);
  border: 1px solid var(--green-primary);
  color: var(--light);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  margin-bottom: 24px;
}
.static-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber);
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 20px;
}
.hero-lead {
  font-size: 1.2rem;
  color: var(--light-sub);
  margin-bottom: 28px;
  max-width: 780px;
}

.hero-summary-bar {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  font-size: 0.9rem;
  color: var(--amber);
  margin-bottom: 32px;
  font-family: var(--font-mono);
}
.bar-sep { color: var(--light-sub); opacity: 0.4; }

.hero-actions { display: flex; gap: 16px; margin-bottom: 40px; flex-wrap: wrap; }
.hero-industries-container { border-top: 1px solid var(--border-dark); padding-top: 24px; }
.industries-label { font-size: 0.85rem; text-transform: uppercase; margin-bottom: 12px; font-family: var(--font-mono); }
.industries-grid { display: flex; gap: 12px; flex-wrap: wrap; }
.ind-chip { background: rgba(255,255,255,0.05); padding: 6px 12px; border-radius: 4px; font-size: 0.85rem; }

/* 6. WHY RIXLE STRIP */
.why-rixle-strip { padding: 48px 0; border-bottom: 1px solid var(--border-dark); }
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.why-card { display: flex; gap: 16px; align-items: flex-start; }
.why-icon-svg { background: var(--green-subtle); padding: 12px; border-radius: 8px; }
.why-content h4 { font-size: 1.2rem; margin-bottom: 6px; }
.why-content p { font-size: 0.9rem; }

/* 7. ABOUT SECTION */
.about-section { padding: 96px 0; }
.about-image-frame { position: relative; }
.premium-img-frame img { width: 100%; height: 100%; object-fit: cover; border-radius: 6px; }
.isometric-mrf-container { background: var(--dark-surface); border: 1px solid var(--border-dark); border-radius: 6px; padding: 16px; }
.isometric-svg { width: 100%; height: auto; }
.about-image-badge { display: flex; gap: 12px; align-items: center; background: var(--dark-panel); border: 1px solid var(--border-dark); padding: 12px; margin-top: 12px; border-radius: 6px; }

.about-pillars-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 28px 0; }
.pillar-item { display: flex; gap: 12px; }
.pillar-item.pillar-full-width { grid-column: span 2; }
.pillar-num { font-family: var(--font-mono); color: var(--amber); font-weight: 700; }
.pillar-content strong { display: block; color: var(--light); margin-bottom: 4px; }

.highlight-callout { background: var(--green-subtle); border-left: 3px solid var(--green-primary); padding: 16px; border-radius: 0 4px 4px 0; font-size: 0.9rem; }

/* 8. SERVICES SECTION */
.services-section { padding: 96px 0; }
.services-enterprise-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.svc-b2b-card { background: var(--dark-surface); border: 1px solid var(--border-dark); border-radius: 6px; padding: 24px; display: flex; flex-direction: column; justify-content: space-between; }
.svc-card-header { display: flex; gap: 16px; margin-bottom: 20px; }
.svc-icon-wrapper { color: var(--amber); }
.svc-svg-icon { width: 32px; height: 32px; }
.svc-kpi-badge { font-family: var(--font-mono); font-size: 0.75rem; color: var(--amber); background: var(--amber-subtle); padding: 2px 6px; border-radius: 3px; }
.svc-meta-block { font-size: 0.9rem; margin-bottom: 12px; }

/* 9. WORKFLOW SECTION (10 STAGES) */
.wf-progress-bar-container { margin-bottom: 32px; }
.wf-progress-text { display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 0.85rem; margin-bottom: 8px; }
.wf-progress-track { height: 4px; background: rgba(255,255,255,0.1); border-radius: 2px; overflow: hidden; }
.wf-progress-fill { height: 100%; background: var(--amber); transition: width 0.3s ease; }

.workflow-rail-track { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 12px; margin-bottom: 24px; scrollbar-width: thin; }
.wf-rail-node { background: var(--dark-surface); border: 1px solid var(--border-dark); color: var(--light-sub); padding: 10px 16px; border-radius: 4px; white-space: nowrap; cursor: pointer; font-family: var(--font-mono); font-size: 0.85rem; transition: var(--transition); }
.wf-rail-node.active, .wf-rail-node:hover { background: var(--green-primary); color: var(--light); border-color: var(--amber); }

.workflow-stage-card { background: var(--dark-surface); border: 1px solid var(--border-dark); border-radius: 8px; padding: 32px; }
.wf-stage-panel { display: none; }
.wf-stage-panel.active { display: block; }
.wf-panel-grid { display: grid; grid-template-columns: 300px 1fr; gap: 32px; align-items: center; }
.wf-vector-frame { background: #151B16; border-radius: 6px; padding: 16px; border: 1px solid var(--border-dark); }
.wf-stage-svg { width: 100%; height: auto; }
.wf-stage-badge { display: inline-block; font-family: var(--font-mono); font-size: 0.8rem; color: var(--amber); background: var(--amber-subtle); padding: 4px 8px; border-radius: 4px; margin-bottom: 12px; }
.wf-stage-desc { font-size: 1.05rem; margin: 12px 0 24px; }
.wf-spec-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; background: rgba(0,0,0,0.2); padding: 16px; border-radius: 4px; }
.wf-spec-box span { display: block; font-size: 0.75rem; text-transform: uppercase; font-family: var(--font-mono); }
.wf-spec-box strong { color: var(--light); font-size: 0.95rem; }

/* 10. AIRWSS TECH & MATERIALS */
.airwss-diagram-card { background: var(--dark-surface); border: 1px solid var(--border-dark); border-radius: 8px; padding: 24px; margin-top: 32px; }
.tech-diagram-header { display: flex; justify-content: space-between; margin-bottom: 20px; }
.mono-tag { font-family: var(--font-mono); font-size: 0.8rem; color: var(--amber); }
.airwss-svg-container { width: 100%; overflow-x: auto; }
.airwss-engineering-svg { width: 100%; min-width: 600px; height: auto; }

.materials-section { padding: 96px 0; }
.materials-grid-matrix { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.mat-b2b-card { background: var(--dark-surface); border: 1px solid var(--border-dark); border-radius: 6px; overflow: hidden; }
.mat-vector-header { height: 160px; background: #19201A; display: flex; align-items: center; justify-content: center; position: relative; }
.mat-vector-header img { width: 100%; height: 100%; object-fit: cover; }
.mat-card-body { padding: 20px; }
.mat-resin-code { font-family: var(--font-mono); font-size: 0.75rem; color: var(--amber); display: block; margin-bottom: 6px; }

/* 11. CONTACT & FOOTER */
.contact-section { padding: 96px 0; }
.enterprise-form { background: var(--dark-surface); border: 1px solid var(--border-dark); border-radius: 8px; padding: 32px; }
.enterprise-form h3 { margin-bottom: 20px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 8px; color: var(--light); }
.form-group input { width: 100%; padding: 12px; background: rgba(0,0,0,0.3); border: 1px solid var(--border-dark); border-radius: 4px; color: var(--light); font-family: var(--font-main); }
.form-group input:focus { outline: none; border-color: var(--amber); }
.form-group.has-error input { border-color: #e74c3c; }

.form-feedback { margin-top: 16px; font-size: 0.9rem; border-radius: 4px; }
.form-feedback.success { color: #2ecc71; }
.form-feedback.error { color: #e74c3c; }

footer { background: #0c100d; border-top: 1px solid var(--border-dark); padding: 32px 0; font-size: 0.85rem; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }

/* 12. CLIENT PORTAL MODAL OVERLAY */
.portal-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(12, 16, 13, 0.85);
  backdrop-filter: blur(6px);
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.portal-modal-overlay.is-active { display: flex; }
.portal-modal-card {
  background: var(--dark-panel);
  border: 1px solid var(--amber);
  padding: 32px;
  max-width: 420px;
  width: 100%;
  color: var(--light);
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
  position: relative;
  border-radius: 6px;
}
.portal-modal-close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: none;
  border: none;
  color: var(--light);
  font-size: 22px;
  cursor: pointer;
}

/* 13. RESPONSIVE MEDIA QUERIES */
@media (max-width: 900px) {
  .grid-2-col, .why-grid, .services-enterprise-grid, .materials-grid-matrix, .about-pillars-grid {
    grid-template-columns: 1fr;
  }
  .pillar-item.pillar-full-width { grid-column: span 1; }
  .wf-panel-grid { grid-template-columns: 1fr; }
  .navlinks, .navcta { display: none; }
  .menu-toggle { display: flex; }
  .hero h1 { font-size: 2.5rem; }
  .workflow-section.bg-overlay-section { background-attachment: scroll; }
}