/**
 * Navy FSE Theme - Main Stylesheet
 * Faithfully reproducing Landrick UI/UX architecture for navybodyfatcalculator.com
 */

:root {
  --color-primary: #2f55d4;
  --color-primary-dark: #2443ac;
  --color-primary-light: #f0f3fc;
  --color-dark: #161c2d;
  --color-dark-surface: #202942;
  --color-heading: #161c2d;
  --color-body: #3c4858;
  --color-muted: #8492a6;
  --color-light: #f8fafc;
  --color-border: #e2e8f0;
  --color-white: #ffffff;
  --color-success: #2ec4b6;
  --color-warning: #f59e0b;
  --shadow-card: 0 10px 25px rgba(60, 72, 88, 0.08);
  --shadow-hover: 0 15px 35px rgba(60, 72, 88, 0.12);
  --shadow-nav: 0 2px 10px rgba(60, 72, 88, 0.06);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --transition: all 0.25s ease-in-out;
}

/* -------------------------------------------------------------
 * BASE & TYPOGRAPHY
 * ----------------------------------------------------------- */
html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--color-body);
  background-color: var(--color-white);
  line-height: 1.65;
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-heading);
  font-weight: 700;
  line-height: 1.25;
  margin-top: 0;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

p {
  margin-top: 0;
  margin-bottom: 1.25rem;
}

.text-primary {
  color: var(--color-primary) !important;
}

.text-muted {
  color: var(--color-muted) !important;
}

.bg-light {
  background-color: var(--color-light) !important;
}

.bg-white {
  background-color: var(--color-white) !important;
}

/* -------------------------------------------------------------
 * CONTAINER & LAYOUT
 * ----------------------------------------------------------- */
.site-container {
  width: 100%;
  max-width: 1180px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section-padding {
  padding-top: 5rem;
  padding-bottom: 5rem;
}

@media (max-width: 768px) {
  .section-padding {
    padding-top: 3.5rem;
    padding-bottom: 3.5rem;
  }
}

/* -------------------------------------------------------------
 * BUTTONS & BADGES (Landrick Style)
 * ----------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1.5;
  padding: 0.6875rem 1.5rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  gap: 0.5rem;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 4px 10px rgba(47, 85, 212, 0.25);
}

.btn-primary:hover, .btn-primary:focus-visible {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  box-shadow: 0 6px 15px rgba(47, 85, 212, 0.35);
  transform: translateY(-1px);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--color-border);
  color: var(--color-body);
}

.btn-outline:hover, .btn-outline:focus-visible {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.85rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 50px;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  margin-bottom: 1rem;
}

/* -------------------------------------------------------------
 * HEADER & NAVIGATION
 * ----------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}

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

.site-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--color-heading);
}

.site-brand-icon {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-weight: 900;
  font-size: 1rem;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-desktop a {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-heading);
  text-decoration: none;
  transition: var(--transition);
  position: relative;
  padding: 0.5rem 0;
}

.nav-desktop a:hover,
.nav-desktop a:focus-visible {
  color: var(--color-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.locale-switcher select {
  font-size: 0.875rem;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background-color: var(--color-white);
  color: var(--color-heading);
  cursor: pointer;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  width: 2.5rem;
  height: 2.5rem;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
}

.mobile-menu-btn span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-heading);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-drawer {
  display: none;
  padding: 1.5rem;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.mobile-drawer.is-open {
  display: block;
}

.mobile-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mobile-nav-list a {
  display: block;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-heading);
  text-decoration: none;
  padding: 0.5rem 0;
}

@media (max-width: 991px) {
  .nav-desktop {
    display: none;
  }
  .mobile-menu-btn {
    display: flex;
  }
}

@media (max-width: 576px) {
  .site-brand {
    font-size: 1.15rem;
  }
  .site-brand-icon {
    width: 1.75rem;
    height: 1.75rem;
    font-size: 0.875rem;
  }
  .header-actions {
    gap: 0.5rem;
  }
  .locale-switcher select {
    font-size: 0.75rem;
    padding: 0.3rem 0.4rem;
    max-width: 110px;
  }
  .hero-content h1 {
    font-size: 1.85rem;
    line-height: 1.25;
  }
  .hero-section {
    padding-top: 2.5rem;
    padding-bottom: 2.5rem;
  }
  .calculator-embed-card {
    padding: 1.25rem;
  }
  .section-illustration {
    padding: 1.25rem;
  }
}

/* -------------------------------------------------------------
 * HERO SECTION & CALCULATOR INTEGRATION
 * ----------------------------------------------------------- */
.hero-section {
  background: linear-gradient(180deg, var(--color-light) 0%, var(--color-white) 100%);
  padding-top: 4rem;
  padding-bottom: 4.5rem;
  border-bottom: 1px solid var(--color-border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

@media (max-width: 991px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

.hero-content h1 {
  font-size: 2.875rem;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

@media (max-width: 768px) {
  .hero-content h1 {
    font-size: 2.125rem;
  }
}

.hero-lead {
  font-size: 1.125rem;
  color: var(--color-muted);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}

/* Calculator Integration & Placeholder Container */
.calculator-embed-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: 2rem;
  position: relative;
  overflow: hidden;
}

.calculator-embed-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
}

.navy-bca-calculator-placeholder {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.placeholder-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.placeholder-badge {
  display: inline-block;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.placeholder-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--color-success);
  box-shadow: 0 0 0 3px rgba(46, 196, 182, 0.2);
}

.placeholder-title {
  font-size: 1.35rem;
  margin: 0;
}

.placeholder-description {
  font-size: 0.9375rem;
  color: var(--color-muted);
  margin: 0;
}

.placeholder-specs {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.spec-pill {
  background-color: var(--color-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  color: var(--color-heading);
}

/* -------------------------------------------------------------
 * PROTOCOL DIMENSIONS STRIP (Muted Trust Bar)
 * ----------------------------------------------------------- */
.metric-strip-section {
  background-color: var(--color-light);
  border-bottom: 1px solid var(--color-border);
  padding-top: 1.75rem;
  padding-bottom: 1.75rem;
}

.metric-strip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .metric-strip-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
}

.metric-strip-item {
  display: flex;
  flex-direction: column;
  border-left: 3px solid var(--color-primary);
  padding-left: 1rem;
}

.metric-strip-title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 0.15rem;
}

.metric-strip-desc {
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin: 0;
}

/* -------------------------------------------------------------
 * ALTERNATING 2-COLUMN SECTIONS (Landrick Zig-Zag)
 * ----------------------------------------------------------- */
.two-col-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

@media (max-width: 991px) {
  .two-col-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

.section-illustration {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-check-list {
  list-style: none;
  margin: 1.5rem 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.feature-check-item {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
}

.check-icon-badge {
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 900;
  margin-top: 0.15rem;
}

.check-item-text {
  font-size: 0.9375rem;
  color: var(--color-body);
}

/* -------------------------------------------------------------
 * 3-COLUMN FEATURE CARDS (Elevated Grid)
 * ----------------------------------------------------------- */
.three-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

@media (max-width: 991px) {
  .three-card-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

.feature-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: #cbd5e1;
}

.feature-card-icon {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-sm);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 1.25rem;
}

.feature-card-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.feature-card-text {
  font-size: 0.9375rem;
  color: var(--color-muted);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.card-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.card-link:hover {
  text-decoration: underline;
}

/* -------------------------------------------------------------
 * COMPARISON CARDS (Landrick Pricing Layout Adaptation)
 * ----------------------------------------------------------- */
.comparison-section-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 3.5rem;
  align-items: center;
}

@media (max-width: 991px) {
  .comparison-section-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

.dual-card-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .dual-card-container {
    grid-template-columns: 1fr;
  }
}

.comparison-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  position: relative;
  transition: var(--transition);
}

.comparison-card.highlight {
  border-color: var(--color-primary);
  box-shadow: 0 15px 35px rgba(47, 85, 212, 0.12);
}

.comparison-card-badge {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.comparison-card-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

/* -------------------------------------------------------------
 * 2-COLUMN FAQ GRID (Landrick Style)
 * ----------------------------------------------------------- */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem 3rem;
  margin-top: 3rem;
}

@media (max-width: 768px) {
  .faq-grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }
}

.faq-item {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.faq-badge {
  flex-shrink: 0;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.875rem;
}

.faq-content h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.faq-content p {
  font-size: 0.9375rem;
  color: var(--color-muted);
  line-height: 1.6;
  margin: 0;
}

/* -------------------------------------------------------------
 * CTA CALLOUT BANNER
 * ----------------------------------------------------------- */
.cta-banner-section {
  padding-top: 4rem;
  padding-bottom: 4rem;
  background-color: var(--color-light);
  border-top: 1px solid var(--color-border);
}

.cta-banner-inner {
  text-align: center;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.cta-banner-inner h2 {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.cta-banner-inner p {
  color: var(--color-muted);
  font-size: 1.05rem;
  margin-bottom: 2rem;
}

/* -------------------------------------------------------------
 * SLANTED DARK FOOTER (Signature Landrick Element)
 * ----------------------------------------------------------- */
.site-footer {
  background-color: var(--color-dark);
  color: var(--color-muted);
  position: relative;
  padding-top: 6rem;
  padding-bottom: 2.5rem;
  clip-path: polygon(0 40px, 100% 0, 100% 100%, 0 100%);
}

@media (max-width: 768px) {
  .site-footer {
    clip-path: polygon(0 25px, 100% 0, 100% 100%, 0 100%);
    padding-top: 4.5rem;
  }
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

@media (max-width: 991px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 576px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

.footer-col h4 {
  color: var(--color-white);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  letter-spacing: 0.02em;
}

.footer-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-nav-list a {
  color: var(--color-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: var(--transition);
}

.footer-nav-list a:hover,
.footer-nav-list a:focus-visible {
  color: var(--color-white);
  padding-left: 4px;
}

.footer-brand {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 1rem;
}

.footer-disclaimer-text {
  font-size: 0.8125rem;
  line-height: 1.6;
  color: #64748b;
  margin-top: 1rem;
}

.footer-bottom-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.875rem;
}

.footer-bottom-bar a {
  color: var(--color-muted);
  text-decoration: none;
}

.footer-bottom-bar a:hover {
  color: var(--color-white);
}

/* -------------------------------------------------------------
 * BREADCRUMB NAVIGATION
 * ----------------------------------------------------------- */
.breadcrumb-trail {
  margin-bottom: 1.25rem;
  font-size: 0.875rem;
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
  color: var(--color-muted);
}

.breadcrumb-item a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition);
}

.breadcrumb-item a:hover {
  text-decoration: underline;
}

.breadcrumb-item.active {
  color: var(--color-heading);
  font-weight: 600;
}

.breadcrumb-separator {
  color: #cbd5e1;
  user-select: none;
}

/* -------------------------------------------------------------
 * CONTACT ALERTS & FORMS
 * ----------------------------------------------------------- */
.contact-alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.5rem;
  font-size: 0.9375rem;
  line-height: 1.5;
  font-weight: 500;
}

.contact-alert.alert-success {
  background-color: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #065f46;
}

.contact-alert.alert-danger {
  background-color: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
}

/* -------------------------------------------------------------
 * ACCESSIBILITY & FOCUS
 * ----------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: 8px 16px;
  z-index: 10000;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 0;
}