/* ==========================================================================
   RRG Innovations - Main Application Stylesheet
   ========================================================================== */

/* Modern CSS Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  color-scheme: light;
}

body {
  font-family: var(--font-sans);
  font-weight: var(--fw-regular);
  color: var(--color-text-secondary);
  background-color: var(--color-page);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
}

/* Background Subtle Gradient */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 600px;
  background: radial-gradient(circle at 50% -100px, rgba(78, 110, 84, 0.06), transparent 70%),
              radial-gradient(circle at 90% 10%, rgba(197, 125, 97, 0.03), transparent 60%);
  pointer-events: none;
  z-index: -1;
}

/* Typography Defaults */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--color-text-primary);
  font-weight: var(--fw-bold);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

p {
  margin-bottom: 1rem;
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

button {
  font: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

/* Accessible Focus States */
:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
  border-radius: var(--radius-sm);
}

/* Skip to Content for Accessibility */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--color-text-primary);
  color: var(--color-text-inverse);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  z-index: 9999;
  font-weight: var(--fw-medium);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 1rem;
}

/* Layout Container */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* Badges & Section Kickers */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--color-sage-bg);
  color: var(--color-sage-primary);
  border: 1px solid var(--color-sage-border);
  margin-bottom: var(--space-4);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-sage-primary);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-12) auto;
}

.section-title {
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-weight: var(--fw-semibold);
  font-size: 0.95rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-text-primary);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: #1E293B;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-subtle);
  box-shadow: var(--shadow-xs);
}

.btn-secondary:hover {
  background-color: var(--color-surface-subtle);
  border-color: var(--color-border-medium);
  transform: translateY(-1px);
}

.btn-sage {
  background-color: var(--color-sage-primary);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
}

.btn-sage:hover {
  background-color: var(--color-sage-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(251, 251, 250, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.7);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.brand-logo-img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: var(--fw-bold);
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
  line-height: 1.1;
}

.brand-tag {
  font-size: 0.7rem;
  font-weight: var(--fw-medium);
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Desktop Navigation */
.nav-desktop {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: var(--space-6);
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: var(--fw-medium);
  color: var(--color-text-secondary);
  position: relative;
  padding: var(--space-1) 0;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--color-sage-primary);
  transition: width var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link.active {
  color: var(--color-text-primary);
  font-weight: var(--fw-semibold);
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-subtle);
  background-color: var(--color-surface);
}

.hamburger-icon {
  width: 22px;
  height: 16px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hamburger-line {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--color-text-primary);
  border-radius: 2px;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.mobile-nav-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-nav-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-nav-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav Drawer */
.mobile-nav-drawer {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border-subtle);
  box-shadow: var(--shadow-lg);
  padding: var(--space-6) var(--container-padding);
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
}

.mobile-nav-drawer.open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.mobile-nav-link {
  font-size: 1.05rem;
  font-weight: var(--fw-medium);
  color: var(--color-text-primary);
  display: block;
  padding: var(--space-2) 0;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  padding-top: clamp(3.5rem, 7vw, 6.5rem);
  padding-bottom: clamp(3.5rem, 7vw, 6rem);
  position: relative;
}

.hero-content {
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
}

.hero-headline {
  font-size: clamp(2.35rem, 5.2vw, 3.85rem);
  color: var(--color-text-primary);
  line-height: 1.15;
  margin-bottom: var(--space-6);
  letter-spacing: -0.03em;
}

.hero-subtext {
  font-size: clamp(1.1rem, 2.2vw, 1.3rem);
  color: var(--color-text-secondary);
  line-height: 1.65;
  max-width: 720px;
  margin: 0 auto var(--space-8) auto;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-12);
}

/* Hero Trust Bar */
.hero-trust {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-6);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-xs);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.trust-separator {
  color: var(--color-border-medium);
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-section {
  padding: clamp(4rem, 8vw, 7rem) 0;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2.5rem, 5vw, 4.5rem);
  align-items: center;
}

.about-intro-title {
  font-size: clamp(1.85rem, 3.2vw, 2.5rem);
  margin-bottom: var(--space-6);
}

.about-description {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-5);
}

.about-highlights {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.highlight-card {
  padding: var(--space-5) var(--space-6);
  background-color: var(--color-page);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.highlight-card:hover {
  border-color: var(--color-sage-border);
  transform: translateX(4px);
}

.highlight-title {
  font-size: 1.05rem;
  font-weight: var(--fw-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.highlight-text {
  font-size: 0.925rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
  margin-bottom: 0;
}

/* ==========================================================================
   Product Section - Featuring Zunnio
   ========================================================================== */
.product-section {
  padding: clamp(4.5rem, 8vw, 7.5rem) 0;
  position: relative;
}

.product-showcase {
  background: linear-gradient(180deg, #FFFFFF 0%, #F8FAF8 100%);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-xl);
  padding: clamp(2rem, 5vw, 4rem);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.product-showcase::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(78, 110, 84, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.product-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: center;
}

.product-brand-row {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.product-app-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  object-fit: contain;
  background-color: #FFFFFF;
}

.product-brand-title {
  font-size: 2rem;
  color: var(--color-text-primary);
  line-height: 1.1;
}

.product-tagline {
  font-size: 1.1rem;
  font-weight: var(--fw-semibold);
  color: var(--color-sage-primary);
  letter-spacing: 0.02em;
}

.product-description {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
}

.product-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.product-feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

.feature-check-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-sage-primary);
  margin-top: 2px;
}

.product-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.store-badges {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.store-badge-img {
  height: 40px;
  width: auto;
  border-radius: var(--radius-sm);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.store-badge-img:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* Product Visual Card */
.product-visual-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.product-visual-metric {
  padding: var(--space-4);
  background-color: var(--color-sage-bg);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
}

.metric-title {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: var(--fw-semibold);
  color: var(--color-sage-primary);
  margin-bottom: var(--space-1);
}

.metric-highlight {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: var(--fw-bold);
  color: var(--color-sage-dark);
}

.product-visual-pillars {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--space-2);
}

.pillar-pill {
  padding: var(--space-2) var(--space-1);
  background-color: var(--color-page);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-sm);
  font-size: 0.775rem;
  font-weight: var(--fw-medium);
  color: var(--color-text-secondary);
}

/* ==========================================================================
   Our Approach Section
   ========================================================================== */
.approach-section {
  padding: clamp(4rem, 8vw, 7rem) 0;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
}

.approach-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.approach-card {
  background-color: var(--color-page);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.approach-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-medium);
  box-shadow: var(--shadow-md);
}

.approach-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--color-sage-primary);
}

.approach-card-title {
  font-size: 1.25rem;
  margin-bottom: var(--space-3);
  color: var(--color-text-primary);
}

.approach-card-text {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-section {
  padding: clamp(4.5rem, 8vw, 7.5rem) 0;
}

.contact-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-xl);
  padding: clamp(2.5rem, 6vw, 4.5rem);
  box-shadow: var(--shadow-sm);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2.5rem, 5vw, 4rem);
  align-items: center;
}

.contact-info-title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  margin-bottom: var(--space-4);
}

.contact-info-subtext {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

.contact-channels {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.channel-box {
  padding: var(--space-5) var(--space-6);
  background-color: var(--color-page);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  transition: border-color var(--transition-fast);
}

.channel-box:hover {
  border-color: var(--color-border-medium);
}

.channel-meta {
  display: flex;
  flex-direction: column;
}

.channel-label {
  font-size: 0.75rem;
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: 2px;
}

.channel-value {
  font-size: 1.05rem;
  font-weight: var(--fw-semibold);
  color: var(--color-text-primary);
}

.channel-value a {
  color: var(--color-sage-primary);
}

.channel-value a:hover {
  color: var(--color-sage-dark);
  text-decoration: underline;
}

/* Registered Entity Detail Box */
.registered-entity-box {
  background-color: var(--color-page);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.entity-header {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: var(--fw-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.entity-details-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  font-size: 0.925rem;
}

.entity-detail-row {
  display: flex;
  justify-content: space-between;
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border-subtle);
}

.entity-detail-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.detail-label {
  color: var(--color-text-muted);
  font-weight: var(--fw-medium);
}

.detail-val {
  color: var(--color-text-primary);
  font-weight: var(--fw-semibold);
  text-align: right;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border-subtle);
  padding: var(--space-12) 0 var(--space-8) 0;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-8);
  margin-bottom: var(--space-10);
  flex-wrap: wrap;
}

.footer-brand-col {
  max-width: 380px;
}

.footer-brand-title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: var(--fw-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.footer-brand-desc {
  font-size: 0.925rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.footer-nav-col {
  display: flex;
  gap: var(--space-10);
  flex-wrap: wrap;
}

.footer-nav-group-title {
  font-size: 0.8125rem;
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-link {
  font-size: 0.925rem;
  color: var(--color-text-secondary);
}

.footer-link:hover {
  color: var(--color-text-primary);
}

.footer-bottom {
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-legal-links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.footer-legal-link {
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer-legal-link:hover {
  color: var(--color-text-primary);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 991px) {
  .nav-desktop {
    display: none;
  }

  .mobile-nav-toggle {
    display: flex;
  }

  .mobile-nav-drawer {
    display: block;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .product-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .approach-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .contact-card {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

@media (max-width: 640px) {
  :root {
    --container-padding: 1rem;
  }

  .hero-headline {
    font-size: 2.15rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-trust {
    flex-direction: column;
    gap: var(--space-2);
    border-radius: var(--radius-lg);
    text-align: center;
  }

  .trust-separator {
    display: none;
  }

  .footer-top {
    flex-direction: column;
    gap: var(--space-8);
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }

  .store-badges {
    justify-content: flex-start;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}