/* ==========================================================================
   E-GREEN AMBIENTAL - SYSTEM DESIGN STYLESHEET (V1 - COMPLETE REWRITE)
   Spacious Layout | High-Impact Photography | Pure CSS3 | WCAG AA
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. DESIGN TOKENS & SYSTEM VARIABLES
   -------------------------------------------------------------------------- */
:root {
  /* Brand Palette */
  --color-navy-primary: #0D2D44;
  --color-navy-dark: #071926;
  --color-navy-light: #163E5C;
  --color-navy-soft: #F1F5F9;
  
  --color-green-primary: #2FA464;
  --color-green-hover: #248750;
  --color-green-light: #EBF7F1;
  --color-green-accent: #25D366;

  --color-white: #FFFFFF;
  --color-off-white: #F8FAFC;
  --color-ink: #0F172A;
  --color-muted-text: #475569;
  --color-border: #E2E8F0;
  --color-border-dark: #CBD5E1;
  --color-success: #166534;
  --color-error: #991B1B;

  /* Typography */
  --font-heading: 'Poppins', Arial, Helvetica, sans-serif;
  --font-body: 'Urbanist', Arial, Helvetica, sans-serif;

  /* Spacing Scale (Generous Whitespace) */
  --space-2: 0.5rem;   /* 8px */
  --space-3: 0.75rem;  /* 12px */
  --space-4: 1rem;     /* 16px */
  --space-5: 1.25rem;  /* 20px */
  --space-6: 1.5rem;   /* 24px */
  --space-8: 2rem;     /* 32px */
  --space-10: 2.5rem;  /* 40px */
  --space-12: 3rem;    /* 48px */
  --space-16: 4rem;    /* 64px */
  --space-20: 5rem;    /* 80px */
  --space-24: 6rem;    /* 96px */

  /* Container & Layout */
  --container-max-width: 1240px;
  --header-height: 80px;

  /* Elevation */
  --shadow-sm: 0 2px 10px rgba(7, 25, 38, 0.04);
  --shadow-md: 0 8px 24px rgba(7, 25, 38, 0.08);
  --shadow-lg: 0 20px 48px rgba(7, 25, 38, 0.12);

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* --------------------------------------------------------------------------
   2. RESET & BASE TYPOGRAPHY
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-body);
  font-size: 100%;
  color: var(--color-ink);
  background-color: var(--color-white);
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-navy-primary);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.02em;
}

p {
  margin-bottom: var(--space-4);
  max-width: 65ch;
  line-height: 1.65;
}

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

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

a:hover {
  color: var(--color-green-primary);
}

ul, ol {
  list-style: none;
}

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

:focus-visible {
  outline: 3px solid var(--color-green-primary);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--color-navy-primary);
  color: var(--color-white);
  padding: 0.75rem 1.25rem;
  z-index: 9999;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-weight: 600;
}

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

/* --------------------------------------------------------------------------
   3. LAYOUT CONTAINERS & SECTION SPACING
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

@media (min-width: 1024px) {
  .container {
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}

.section {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

@media (min-width: 1024px) {
  .section {
    padding-top: var(--space-20);
    padding-bottom: var(--space-20);
  }
}

.section-bg-offwhite {
  background-color: var(--color-off-white);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-bg-navy {
  background-color: var(--color-navy-primary);
  color: var(--color-white);
}

.section-bg-navy h2,
.section-bg-navy h3,
.section-bg-navy h4 {
  color: var(--color-white);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-navy-primary);
  background-color: var(--color-green-light);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
  border: 1px solid rgba(47, 164, 100, 0.2);
}

.eyebrow-on-navy {
  color: #52D88C;
  background-color: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
}

.section-header {
  margin-bottom: var(--space-12);
}

.section-header.text-center {
  text-align: center;
}

.section-header.text-center p {
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  font-size: clamp(1.85rem, 1.5rem + 1.75vw, 2.5rem);
  color: var(--color-navy-primary);
  margin-bottom: var(--space-3);
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--color-muted-text);
  line-height: 1.65;
}

.section-bg-navy .section-subtitle {
  color: #CBD5E1;
}

/* --------------------------------------------------------------------------
   4. BUTTONS
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.875rem 1.75rem;
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.2;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  text-align: center;
  transition: all var(--transition-fast);
  text-decoration: none;
  min-height: 48px;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background-color: var(--color-green-primary);
  color: var(--color-white);
  border-color: var(--color-green-primary);
  box-shadow: 0 4px 14px rgba(47, 164, 100, 0.3);
}

.btn-primary:hover {
  background-color: var(--color-green-hover);
  border-color: var(--color-green-hover);
  color: var(--color-white);
  box-shadow: 0 6px 18px rgba(47, 164, 100, 0.4);
}

.btn-secondary {
  background-color: var(--color-navy-primary);
  color: var(--color-white);
  border-color: var(--color-navy-primary);
}

.btn-secondary:hover {
  background-color: var(--color-navy-light);
  border-color: var(--color-navy-light);
  color: var(--color-white);
}

.btn-secondary-outline {
  background-color: transparent;
  color: var(--color-navy-primary);
  border-color: var(--color-navy-primary);
}

.btn-secondary-outline:hover {
  background-color: var(--color-navy-primary);
  color: var(--color-white);
}

.btn-full {
  width: 100%;
}

/* --------------------------------------------------------------------------
   5. HEADER & NAVIGATION
   -------------------------------------------------------------------------- */
.header-dark {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background-color: var(--color-navy-dark);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header-logo img {
  height: 42px;
  width: auto;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 500;
  color: #F1F5F9;
  padding: 0.5rem 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 3px;
  background-color: var(--color-green-primary);
  border-radius: 2px;
  transition: width var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: #52D88C;
}

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

.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: none;
  padding: var(--space-2);
  cursor: pointer;
  color: var(--color-white);
  min-height: 44px;
  min-width: 44px;
  align-items: center;
  justify-content: center;
}

.hamburger-icon {
  width: 24px;
  height: 18px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hamburger-bar {
  display: block;
  width: 100%;
  height: 2.5px;
  background-color: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-bar:nth-child(1) {
  transform: translateY(7.75px) rotate(45deg);
}
.mobile-menu-toggle[aria-expanded="true"] .hamburger-bar:nth-child(2) {
  opacity: 0;
}
.mobile-menu-toggle[aria-expanded="true"] .hamburger-bar:nth-child(3) {
  transform: translateY(-7.75px) rotate(-45deg);
}

@media (max-width: 1023px) {
  .mobile-menu-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-navy-dark);
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    padding: var(--space-8);
    gap: var(--space-6);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    box-shadow: var(--shadow-lg);
    overflow-y: auto;
    z-index: 999;
  }

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

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-4);
  }

  .nav-link {
    font-size: 1.125rem;
    padding: var(--space-3) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav-link::after {
    display: none;
  }

  .header-cta {
    width: 100%;
  }
}

/* --------------------------------------------------------------------------
   6. HERO SECTION (HIGH IMPACT PHOTOGRAPHY & CLEAN TYPOGRAPHY)
   -------------------------------------------------------------------------- */
.hero-section {
  padding-top: var(--space-16);
  padding-bottom: var(--space-20);
  background: linear-gradient(180deg, var(--color-navy-soft) 0%, #FFFFFF 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
}

@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: var(--space-16);
  }
}

.hero-headline {
  font-size: clamp(2.25rem, 1.75rem + 2.5vw, 3.25rem);
  font-weight: 700;
  margin-bottom: var(--space-6);
  color: var(--color-navy-primary);
  line-height: 1.15;
}

.hero-body {
  font-size: 1.125rem;
  color: var(--color-muted-text);
  line-height: 1.65;
  margin-bottom: var(--space-8);
  max-width: 560px;
}

.hero-ctas {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

@media (min-width: 540px) {
  .hero-ctas {
    flex-direction: row;
  }
}

.hero-microproofs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4) var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

.microproof-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-navy-primary);
}

.microproof-item svg {
  color: var(--color-green-primary);
}

/* High-Impact Photo Framing (No thick white masking!) */
.hero-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 48px rgba(7, 25, 38, 0.14);
  position: relative;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  display: block;
}

.hero-media-badge {
  position: absolute;
  bottom: var(--space-4);
  left: var(--space-4);
  right: var(--space-4);
  background: rgba(7, 25, 38, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--color-white);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-green-primary);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  box-shadow: var(--shadow-md);
}

/* --------------------------------------------------------------------------
   7. TRUST BAR
   -------------------------------------------------------------------------- */
.trust-bar {
  background-color: var(--color-navy-primary);
  color: var(--color-white);
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
  border-bottom: 4px solid var(--color-green-primary);
}

.trust-bar-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

@media (min-width: 900px) {
  .trust-bar-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.trust-bar-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.trust-bar-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: rgba(255, 255, 255, 0.1);
  color: #52D88C;
  flex-shrink: 0;
}

.trust-bar-text {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-white);
}

/* --------------------------------------------------------------------------
   8. BUSINESS PROBLEM STATEMENT & PAIN CARDS (HIGH-TRUST SPACIOUS CARDS)
   -------------------------------------------------------------------------- */
.problem-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
}

@media (min-width: 1024px) {
  .problem-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}

.problem-closing {
  margin-top: var(--space-6);
  padding: var(--space-5) var(--space-6);
  background-color: var(--color-white);
  color: var(--color-navy-primary);
  border-left: 4px solid var(--color-navy-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-weight: 600;
  font-size: 0.9375rem;
  box-shadow: var(--shadow-sm);
  border-top: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

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

@media (min-width: 540px) {
  .pain-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.pain-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-navy-primary);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.pain-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-left-color: var(--color-green-primary);
}

.pain-card-icon-wrapper {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: var(--color-navy-soft);
  color: var(--color-navy-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.pain-card-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-navy-primary);
  line-height: 1.3;
}

.pain-card-sub {
  font-size: 0.875rem;
  color: var(--color-muted-text);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   9. SOLUTION PILLARS (SPACIOUS EXECUTIVE CARDS)
   -------------------------------------------------------------------------- */
.solutions-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .solutions-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.solution-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  height: 100%;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.solution-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-navy-primary);
}

.solution-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.solution-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background-color: var(--color-navy-primary);
  color: #52D88C;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.solution-card-title {
  font-size: 1.25rem;
  color: var(--color-navy-primary);
}

.solution-card-description {
  color: var(--color-muted-text);
  margin-bottom: var(--space-6);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.solution-services-list {
  margin-top: auto;
  margin-bottom: var(--space-8);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.service-tag {
  background-color: var(--color-navy-soft);
  border: 1px solid var(--color-border);
  color: var(--color-navy-primary);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
}

.solution-card-cta {
  width: 100%;
  margin-top: auto;
}

/* --------------------------------------------------------------------------
   10. FEATURED ENERGY BLOCK (NAVY BACKGROUND)
   -------------------------------------------------------------------------- */
.energy-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  margin-top: var(--space-8);
}

@media (min-width: 900px) {
  .energy-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.energy-subcard {
  background-color: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.energy-subcard-title {
  font-size: 1.25rem;
  color: var(--color-white);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.energy-subcard-title svg {
  color: #52D88C;
}

.energy-subcard-desc {
  color: #CBD5E1;
  font-size: 0.9375rem;
  line-height: 1.6;
}

.energy-benefits-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.energy-benefit-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 0.9375rem;
  color: var(--color-white);
}

.energy-benefit-item svg {
  color: #52D88C;
  flex-shrink: 0;
}

.energy-disclaimer {
  margin-top: var(--space-8);
  padding: var(--space-4) var(--space-6);
  background-color: rgba(0, 0, 0, 0.25);
  border: 1px dashed rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  color: #94A3B8;
  text-align: center;
}

/* --------------------------------------------------------------------------
   11. FOUR-STEP PROCESS (CLEAN SPACIOUS CARDS)
   -------------------------------------------------------------------------- */
.process-timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-top: var(--space-8);
}

@media (min-width: 640px) {
  .process-timeline {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .process-timeline {
    grid-template-columns: repeat(4, 1fr);
  }
}

.process-step-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-navy-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.process-step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-top-color: var(--color-green-primary);
}

.process-badge {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background-color: var(--color-navy-primary);
  color: #52D88C;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-2);
}

.process-title {
  font-size: 1.125rem;
  color: var(--color-navy-primary);
}

.process-desc {
  font-size: 0.875rem;
  color: var(--color-muted-text);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   12. ABOUT E-GREEN (PROMINENT PHOTO & NO OVERFLOW)
   -------------------------------------------------------------------------- */
.section-about-fixed {
  padding-top: var(--space-20);
  padding-bottom: var(--space-20);
  background-color: var(--color-white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
}

@media (min-width: 1024px) {
  .about-grid {
    grid-template-columns: 0.95fr 1.05fr;
    gap: var(--space-16);
  }
}

.about-image-wrapper {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 48px rgba(7, 25, 38, 0.12);
  display: block;
}

.about-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  display: block;
}

.differentials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-top: var(--space-8);
}

@media (min-width: 540px) {
  .differentials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.diff-card {
  padding: var(--space-5);
  border-left: 4px solid var(--color-navy-primary);
  background-color: var(--color-off-white);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  border-top: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.diff-title {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-navy-primary);
  margin-bottom: var(--space-1);
}

.diff-desc {
  font-size: 0.8125rem;
  color: var(--color-muted-text);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   13. ACCESSIBLE FAQ ACCORDION (GENEROUS INNER PADDING)
   -------------------------------------------------------------------------- */
.faq-container {
  max-width: 840px;
  margin-left: auto;
  margin-right: auto;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  margin-bottom: var(--space-4);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--color-navy-primary);
}

.faq-button {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-6) var(--space-8);
  background: var(--color-white);
  border: none;
  text-align: left;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-navy-primary);
  cursor: pointer;
}

.faq-icon-badge {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background-color: var(--color-navy-soft);
  color: var(--color-navy-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
}

.faq-button[aria-expanded="true"] .faq-icon-badge {
  transform: rotate(180deg);
  background-color: var(--color-green-primary);
  color: var(--color-white);
}

.faq-panel {
  padding: 0 var(--space-8) var(--space-6) var(--space-8);
  color: var(--color-muted-text);
  font-size: 0.9375rem;
  line-height: 1.65;
  display: none;
}

.faq-panel.active {
  display: block;
}

/* --------------------------------------------------------------------------
   14. LEAD FORM SECTION
   -------------------------------------------------------------------------- */
.lead-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: start;
}

@media (min-width: 1024px) {
  .lead-grid {
    grid-template-columns: 0.95fr 1.05fr;
    gap: var(--space-16);
  }
}

.lead-info-contacts {
  margin-top: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.contact-card-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.contact-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: var(--color-navy-primary);
  color: #52D88C;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-card-label {
  font-size: 0.8125rem;
  color: var(--color-muted-text);
  margin-bottom: 2px;
}

.contact-card-val {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-navy-primary);
}

.form-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-navy-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-navy-primary);
  margin-bottom: var(--space-2);
}

.form-label .required-star {
  color: var(--color-error);
}

.form-control {
  width: 100%;
  padding: 0.875rem 1rem;
  font-size: 0.9375rem;
  color: var(--color-ink);
  background-color: var(--color-white);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  appearance: none;
}

.form-control:focus {
  border-color: var(--color-navy-primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(13, 45, 68, 0.15);
}

.form-control.is-invalid {
  border-color: var(--color-error);
  background-color: #FEF2F2;
}

select.form-control {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%3C0D2D44' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 16px;
  padding-right: 2.5rem;
}

textarea.form-control {
  resize: vertical;
  min-height: 100px;
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-top: var(--space-4);
  margin-bottom: var(--space-6);
}

.checkbox-input {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--color-navy-primary);
  cursor: pointer;
  flex-shrink: 0;
}

.checkbox-label {
  font-size: 0.8125rem;
  color: var(--color-muted-text);
}

.checkbox-label a {
  color: var(--color-navy-primary);
  font-weight: 600;
  text-decoration: underline;
}

.field-error {
  display: none;
  font-size: 0.8125rem;
  color: var(--color-error);
  margin-top: var(--space-1);
  font-weight: 600;
}

.field-error.visible {
  display: block;
}

.form-privacy-note {
  font-size: 0.8125rem;
  color: var(--color-muted-text);
  margin-top: var(--space-4);
  text-align: center;
}

.form-response-alert {
  display: none !important;
  padding: var(--space-6);
  border-radius: var(--radius-md);
  margin-top: var(--space-4);
}

.form-response-alert.visible {
  display: block !important;
}

.form-response-alert h3 {
  font-size: 1.0625rem;
  margin-bottom: var(--space-2);
}

.form-response-alert p {
  font-size: 0.9375rem;
  max-width: none;
}

.form-response-alert.success {
  background-color: var(--color-green-light);
  border: 1px solid var(--color-green-primary);
  color: var(--color-navy-primary);
}

.form-response-alert.error {
  background-color: #FEF2F2;
  border: 1px solid var(--color-error);
  color: #7F1D1D;
}

.form-hp {
  display: none !important;
}

/* Two-column form grid */
.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

@media (max-width: 540px) {
  .form-grid-2 {
    grid-template-columns: 1fr;
  }
}

/* Conditional field (hidden by default, shown via JS) */
.form-conditional[hidden] {
  display: none !important;
}

.form-conditional {
  display: block;
}

/* File Upload Area */
.file-upload-area {
  border: 2px dashed var(--color-border-dark);
  border-radius: var(--radius-md);
  background-color: var(--color-off-white);
  overflow: hidden;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.file-upload-area:has(.file-input:focus) {
  border-color: var(--color-navy-primary);
  box-shadow: 0 0 0 3px rgba(13, 45, 68, 0.12);
}

.file-upload-area.drag-over {
  border-color: var(--color-green-primary);
  background-color: var(--color-green-light);
}

.file-input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.file-upload-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-6);
  cursor: pointer;
  color: var(--color-muted-text);
  text-align: center;
}

.file-upload-label:hover {
  color: var(--color-navy-primary);
}

.file-upload-text {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-navy-primary);
}

.file-upload-hint {
  font-size: 0.8125rem;
  color: var(--color-muted-text);
}

.file-selected-info {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background-color: var(--color-green-light);
  border-top: 1px solid rgba(47, 164, 100, 0.2);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-navy-primary);
}

.file-selected-info svg {
  color: var(--color-green-primary);
  flex-shrink: 0;
}

.file-clear-btn {
  margin-left: auto;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-muted-text);
  font-size: 1rem;
  line-height: 1;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.file-clear-btn:hover {
  color: var(--color-error);
  background-color: #FEF2F2;
}

/* --------------------------------------------------------------------------
   15. DIAGNOSTIC MODAL DIALOG
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(7, 25, 38, 0.84);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

.modal-overlay.open {
  display: flex !important;
}

.modal-card {
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  max-width: 560px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: var(--space-8);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
  position: relative;
  border-top: 4px solid var(--color-green-primary);
}

.modal-close-btn {
  position: absolute;
  top: var(--space-5);
  right: var(--space-5);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background-color: var(--color-off-white);
  border: 1px solid var(--color-border);
  color: var(--color-navy-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background-color: var(--color-navy-primary);
  color: var(--color-white);
}

.modal-header {
  margin-bottom: var(--space-6);
}

.modal-title {
  font-size: 1.5rem;
  color: var(--color-navy-primary);
  margin-bottom: var(--space-2);
}

.modal-subtitle {
  font-size: 0.9375rem;
  color: var(--color-muted-text);
}

/* --------------------------------------------------------------------------
   16. INSTITUTIONAL FOOTER (SPACIOUS & ELEGANT)
   -------------------------------------------------------------------------- */
.footer {
  background-color: var(--color-navy-dark);
  color: var(--color-white);
  padding-top: var(--space-20);
  padding-bottom: var(--space-10);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: var(--space-16);
  }
}

.footer-brand-col img {
  height: 42px;
  width: auto;
  margin-bottom: var(--space-6);
}

.footer-tagline {
  color: #CBD5E1;
  font-size: 1rem;
  margin-bottom: var(--space-6);
}

.footer-address {
  font-style: normal;
  font-size: 0.875rem;
  color: #94A3B8;
  line-height: 1.7;
}

.footer-address p {
  margin-bottom: var(--space-2);
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-6);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  color: #CBD5E1;
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #52D88C;
}

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: #64748B;
  text-align: center;
}

@media (min-width: 640px) {
  .footer-bottom {
    flex-direction: row;
    text-align: left;
  }
}

/* --------------------------------------------------------------------------
   17. SLEEK WHATSAPP FLOATING BUTTON
   -------------------------------------------------------------------------- */
.floating-whatsapp {
  position: fixed;
  bottom: calc(var(--space-6) + env(safe-area-inset-bottom, 0px));
  right: var(--space-6);
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  background-color: var(--color-green-accent);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  text-decoration: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.floating-whatsapp:hover {
  transform: scale(1.08) translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.55);
}

.floating-whatsapp-icon {
  width: 28px;
  height: 28px;
  fill: currentColor;
}

.floating-whatsapp::before {
  content: 'Falar no WhatsApp';
  position: absolute;
  right: 64px;
  background-color: var(--color-navy-primary);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
}

.floating-whatsapp:hover::before {
  opacity: 1;
  transform: translateX(0);
}

/* --------------------------------------------------------------------------
   18. PREFERS-REDUCED-MOTION
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto !important;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}