/* ==========================================================================
   ONE ACCOUNTING SERVICES SINGAPORE - DESIGN SYSTEM & MODERN STYLESHEET
   Art Direction: Professional & B2B Services (Variant B: Crisp Modern Firm)
   Palette & Typography derived strictly from design_brief.json
   ========================================================================== */

/* 1. CSS Custom Properties / Design Tokens */
:root {
  /* Brand Palette from design_brief.json */
  --color-bg: #f8faf9;
  --color-surface: #ffffff;
  --color-text: #13201e;
  --color-muted: #526561;
  --color-primary: #1c5e58;
  --color-primary-text: #ffffff;
  --color-primary-hover: #154743;
  --color-primary-light: #e8f2f0;
  --color-primary-border: #99c2bd;
  --color-accent: #8dc540;
  --color-accent-dark: #6e9f2d;
  --color-accent-soft: #f1f8e8;
  --color-dark: #0d2220;
  --color-dark-text: #ffffff;
  --color-dark-surface: #152d2b;
  --color-border: #e2e8e5;
  --color-border-light: #eff3f1;

  /* Typography */
  --font-display: 'Schibsted Grotesk', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'IBM Plex Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Fluid Type Scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
  --text-sm: clamp(0.875rem, 0.825rem + 0.25vw, 0.9375rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.0625rem);
  --text-md: clamp(1.125rem, 1.05rem + 0.35vw, 1.25rem);
  --text-lg: clamp(1.25rem, 1.15rem + 0.5vw, 1.4375rem);
  --text-xl: clamp(1.5rem, 1.35rem + 0.75vw, 1.875rem);
  --text-2xl: clamp(1.875rem, 1.65rem + 1.15vw, 2.375rem);
  --text-3xl: clamp(2.25rem, 1.95rem + 1.5vw, 3rem);
  --text-hero: clamp(2.5rem, 2.1rem + 2vw, 3.75rem);

  /* Spacing Scale */
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4.5rem;
  --space-4xl: 6rem;

  /* Elevation / Shadows */
  --shadow-xs: 0 1px 2px rgba(13, 34, 32, 0.04);
  --shadow-sm: 0 2px 6px rgba(13, 34, 32, 0.06);
  --shadow-md: 0 6px 18px rgba(13, 34, 32, 0.08);
  --shadow-lg: 0 14px 32px rgba(13, 34, 32, 0.12);
  --shadow-xl: 0 24px 48px rgba(13, 34, 32, 0.16);

  /* Radii */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 18px;
  --radius-pill: 9999px;

  /* Layout Widths */
  --container-max: 1280px;
  --container-narrow: 960px;
  --container-padding: clamp(1rem, 4vw, 2.5rem);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 250ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* 2. Reset & Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: clip; /* Fix overflow without breaking position:sticky */
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  font-weight: 400;
  overflow-x: clip;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--color-text);
  line-height: 1.25;
  font-weight: 700;
  overflow-wrap: break-word;
}

h1 { font-size: var(--text-hero); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }

p {
  margin-block-end: var(--space-md);
  color: var(--color-muted);
}

p:last-child {
  margin-block-end: 0;
}

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

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

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

ul, ol {
  list-style: none;
}

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

/* Accessible focus visible */
:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* Skip link for WCAG AA compliance (A11Y-05) */
.skip-link {
  position: absolute;
  top: -999px;
  left: 1rem;
  background: var(--color-dark);
  color: #ffffff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  z-index: 9999;
  text-decoration: none;
  transition: top var(--transition-fast);
}

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

/* 3. Utility Classes */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.container-narrow {
  max-width: var(--container-narrow);
}

.section {
  padding-block: clamp(3rem, 6vw, 5.5rem);
}

.section-dark {
  background-color: var(--color-dark);
  color: var(--color-dark-text);
}

.section-dark h1, 
.section-dark h2, 
.section-dark h3, 
.section-dark h4 {
  color: #ffffff;
}

.section-dark p {
  color: #cbd5d2;
}

.section-white {
  background-color: var(--color-surface);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin-inline: auto;
  margin-block-end: clamp(2rem, 4vw, 3.5rem);
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-pill);
  margin-block-end: var(--space-sm);
}

.section-tag.tag-accent {
  background-color: var(--color-accent-soft);
  color: #274810;
}

.section-tag.tag-dark {
  background-color: rgba(255, 255, 255, 0.12);
  color: #ffffff;
}

.section-title {
  margin-block-end: var(--space-sm);
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: var(--text-md);
  color: var(--color-muted);
}

/* 4. Buttons & Badges */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  min-height: 48px; /* Touch target requirement */
  padding: 0.75rem 1.6rem;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  line-height: 1.2;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-primary-text);
  border-color: var(--color-primary);
}

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

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

.btn-secondary:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary-hover);
}

.btn-accent {
  background-color: var(--color-accent);
  color: var(--color-dark);
  font-weight: 700;
  border-color: var(--color-accent);
}

.btn-accent:hover {
  background-color: var(--color-accent-dark);
  color: #ffffff;
  border-color: var(--color-accent-dark);
  box-shadow: var(--shadow-md);
}

.btn-outline-white {
  background-color: transparent;
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-outline-white:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: #ffffff;
  color: #ffffff;
}

.btn-sm {
  min-height: 40px;
  padding: 0.5rem 1rem;
  font-size: var(--text-sm);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  font-weight: 600;
  line-height: 1;
}

.badge-accent {
  background-color: var(--color-accent);
  color: var(--color-dark);
  font-weight: 700;
}

.badge-primary {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

/* 5. Sticky Header & Announcement Bar */
.announcement-bar {
  background-color: var(--color-dark);
  color: #e5ecea;
  font-size: var(--text-xs);
  padding: 0.5rem var(--container-padding);
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.announcement-bar strong {
  color: var(--color-accent);
}

.announcement-bar a {
  color: #ffffff;
  text-decoration: underline;
  text-underline-offset: 3px;
  margin-inline-start: 0.5rem;
}

.announcement-bar a:hover {
  color: var(--color-accent);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--transition-fast);
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-sm);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  gap: var(--space-md);
}

.brand-logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  min-height: 48px;
  padding: 0.25rem 0;
}

.brand-logo {
  height: 52px;
  width: auto;
  object-fit: contain;
}

.main-navigation {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 2rem);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 1.5vw, 1.5rem);
}

.nav-link {
  color: var(--color-text);
  font-weight: 600;
  font-size: var(--text-sm);
  padding: 0.5rem 0.65rem;
  border-radius: var(--radius-sm);
  position: relative;
  transition: color var(--transition-fast);
}

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

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0.65rem;
  right: 0.65rem;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: var(--radius-pill);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.header-phone-link {
  display: none;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text);
  padding: 0.5rem;
  white-space: nowrap;
}

.header-phone-link:hover {
  color: var(--color-primary);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  min-width: 48px;
  min-height: 48px;
  border-radius: var(--radius-md);
  color: var(--color-text);
  align-items: center;
  justify-content: center;
}

.mobile-menu-toggle:hover {
  background-color: var(--color-bg);
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  inset: 0;
  background-color: rgba(13, 34, 32, 0.65);
  backdrop-filter: blur(4px);
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
  display: flex;
  justify-content: flex-end;
}

.mobile-drawer.is-open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-drawer-content {
  width: 85%;
  max-width: 360px;
  height: 100%;
  background-color: var(--color-surface);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-xl);
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  overflow-y: auto;
}

.mobile-drawer.is-open .mobile-drawer-content {
  transform: translateX(0);
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-block-end: var(--space-xl);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.mobile-drawer-close {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  min-width: 48px;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-block-end: var(--space-xl);
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1rem;
  font-size: var(--text-md);
  font-weight: 600;
  color: var(--color-text);
  border-radius: var(--radius-md);
  min-height: 48px;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

.mobile-drawer-footer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

/* 6. Hero Section (Split Layout) */
.hero-section {
  background-color: var(--color-bg);
  padding-block: clamp(2.5rem, 5vw, 4.5rem);
  position: relative;
  border-bottom: 1px solid var(--color-border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.hero-proof-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xs);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text);
  width: fit-content;
}

.hero-proof-badge .stars {
  color: #f59e0b;
}

.hero-headline {
  letter-spacing: -0.03em;
  color: var(--color-text);
}

.hero-subheadline {
  font-size: var(--text-lg);
  line-height: 1.5;
  color: var(--color-muted);
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-block-start: var(--space-sm);
}

.hero-guarantees {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(0.75rem, 2vw, 1.5rem);
  margin-block-start: var(--space-md);
  padding-block-start: var(--space-md);
  border-block-start: 1px solid var(--color-border);
  font-size: var(--text-xs);
  color: var(--color-muted);
}

.hero-guarantee-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 500;
}

.hero-guarantee-item svg {
  color: var(--color-primary);
  flex-shrink: 0;
}

.hero-media {
  position: relative;
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  aspect-ratio: 16 / 11;
  background-color: var(--color-border);
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-float-card {
  position: absolute;
  bottom: -1rem;
  left: -1rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1rem 1.25rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  max-width: 260px;
}

.hero-float-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background-color: var(--color-accent-soft);
  color: var(--color-accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.hero-float-text {
  font-size: var(--text-xs);
}

.hero-float-text strong {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-text);
  font-family: var(--font-display);
}

/* 7. Signature Stat Band (Under Hero) */
.stat-band {
  background-color: var(--color-dark);
  color: #ffffff;
  padding-block: clamp(2.5rem, 4vw, 3.5rem);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

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

.stat-card {
  position: relative;
  padding-left: var(--space-md);
  border-left: 3px solid var(--color-accent);
}

.stat-card-number {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  line-height: 1;
  color: #ffffff;
  margin-block-end: 0.35rem;
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
}

.stat-card-number .pip {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: var(--radius-pill);
  background-color: var(--color-accent);
}

.stat-card-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-block-end: 0.25rem;
}

.stat-card-desc {
  font-size: var(--text-xs);
  color: #cbd5d2;
  line-height: 1.4;
  margin-bottom: 0;
}

/* 8. Trust & Accreditation Strip */
.trust-strip {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding-block: 1.75rem;
}

.trust-strip-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.trust-strip-label {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
}

.trust-badges-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: clamp(1rem, 3vw, 2.5rem);
}

.trust-badge-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 0.75rem;
  filter: grayscale(100%);
  opacity: 0.75;
  transition: all var(--transition-fast);
}

.trust-badge-item:hover {
  filter: grayscale(0%);
  opacity: 1;
  transform: translateY(-2px);
}

.trust-badge-item img {
  height: 38px;
  width: auto;
  object-fit: contain;
}

/* 9. Sectors Served Section */
.sectors-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.sector-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

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

.sector-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-block-end: var(--space-xs);
}

.sector-title {
  font-size: var(--text-lg);
}

.sector-benefits {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: var(--text-xs);
  color: var(--color-muted);
  margin-block-start: auto;
}

.sector-benefits li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.sector-benefits svg {
  color: var(--color-accent-dark);
  flex-shrink: 0;
}

/* 10. Services Section & Cards */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.service-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
}

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

.service-card-media {
  aspect-ratio: 16 / 9;
  background-color: var(--color-border);
  overflow: hidden;
  position: relative;
}

.service-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.service-card:hover .service-card-img {
  transform: scale(1.04);
}

.service-card-tag {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background-color: var(--color-surface);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-sm);
}

.service-card-body {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  gap: var(--space-sm);
}

.service-card-title {
  font-size: var(--text-xl);
}

.service-card-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: var(--text-sm);
  color: var(--color-muted);
  margin-block: var(--space-xs) var(--space-md);
}

.service-card-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
}

.service-card-list svg {
  color: var(--color-primary);
  margin-top: 0.2rem;
  flex-shrink: 0;
}

.service-card-footer {
  margin-top: auto;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.service-card-price {
  font-size: var(--text-xs);
  color: var(--color-muted);
}

.service-card-price strong {
  display: block;
  font-size: var(--text-base);
  color: var(--color-primary);
  font-family: var(--font-display);
}

/* 11. Pricing Packages & Accessible Tables */
.pricing-tabs {
  display: flex;
  justify-content: center;
  gap: var(--space-xs);
  margin-block-end: var(--space-xl);
}

.pricing-tab-btn {
  padding: 0.65rem 1.25rem;
  font-size: var(--text-sm);
  font-weight: 600;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-muted);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pricing-tab-btn.is-active,
.pricing-tab-btn:hover {
  background-color: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}

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

.pricing-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  box-shadow: var(--shadow-sm);
  position: relative;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-fast);
}

.pricing-card.is-featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  background: linear-gradient(180deg, #ffffff 0%, #f4f9f8 100%);
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.pricing-featured-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-accent);
  color: var(--color-dark);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.35rem 1rem;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-xs);
  white-space: nowrap;
}

.pricing-card-header {
  margin-block-end: var(--space-md);
}

.pricing-card-title {
  font-size: var(--text-xl);
  margin-block-end: 0.25rem;
}

.pricing-card-desc {
  font-size: var(--text-sm);
  color: var(--color-muted);
}

.pricing-card-price {
  margin-block: var(--space-md);
  padding-block: var(--space-sm);
  border-block: 1px solid var(--color-border-light);
}

.price-currency {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  vertical-align: super;
}

.price-amount {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--color-text);
  line-height: 1;
}

.price-period {
  font-size: var(--text-sm);
  color: var(--color-muted);
}

.pricing-features {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-block-end: var(--space-xl);
  flex-grow: 1;
}

.pricing-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: var(--text-sm);
  color: var(--color-text);
}

.pricing-feature-item svg {
  color: var(--color-accent-dark);
  margin-top: 0.15rem;
  flex-shrink: 0;
}

.pricing-feature-item.is-complimentary {
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius-sm);
}

.pricing-feature-item.is-complimentary svg {
  color: var(--color-primary);
}

/* Responsive Accessible Tables (AEO-02) */
.table-responsive-wrapper {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
  box-shadow: var(--shadow-xs);
  margin-block: var(--space-lg);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: var(--text-sm);
}

.comparison-table th, 
.comparison-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
}

.comparison-table th {
  background-color: var(--color-bg);
  color: var(--color-dark);
  font-family: var(--font-display);
  font-weight: 700;
  white-space: nowrap;
}

.comparison-table th.highlight-col {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

.comparison-table tbody tr:hover {
  background-color: var(--color-bg);
}

.comparison-table td.highlight-col {
  background-color: rgba(232, 242, 240, 0.4);
  font-weight: 600;
}

.comparison-table .table-check {
  color: var(--color-accent-dark);
  font-weight: 700;
}

/* 12. 4-Step Onboarding Process */
.process-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  position: relative;
}

.process-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-xs);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.process-step-num {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-block-end: var(--space-xs);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.process-step-num .step-badge {
  font-size: var(--text-xs);
  font-family: var(--font-body);
  font-weight: 600;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-pill);
}

.process-card-title {
  font-size: var(--text-lg);
}

.process-card-desc {
  font-size: var(--text-sm);
  color: var(--color-muted);
}

/* 13. Why Us / Credibility Section */
.why-us-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: center;
}

.why-us-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.why-us-points {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  margin-block: var(--space-sm);
}

.why-point-item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.why-point-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.why-point-text h4 {
  font-size: var(--text-base);
  margin-block-end: 0.2rem;
}

.why-point-text p {
  font-size: var(--text-sm);
  color: var(--color-muted);
  margin-bottom: 0;
}

.why-us-media {
  position: relative;
}

.why-us-img-box {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  aspect-ratio: 4 / 3;
}

.why-us-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.office-info-badge {
  margin-block-start: var(--space-md);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  font-size: var(--text-xs);
  color: var(--color-muted);
}

.office-info-badge strong {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-text);
  margin-block-end: 0.2rem;
}

/* 14. Testimonials Section */
.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.testimonial-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: clamp(1.5rem, 3vw, 2rem);
  box-shadow: var(--shadow-xs);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-md);
  transition: all var(--transition-fast);
}

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

.testimonial-stars {
  color: #f59e0b;
  display: flex;
  gap: 0.2rem;
}

.testimonial-quote {
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-text);
  font-style: normal;
}

.testimonial-quote p {
  color: var(--color-text);
  margin-block-end: 0.5rem;
}

.testimonial-author-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border-light);
}

.testimonial-author-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-base);
  color: var(--color-text);
}

.testimonial-source {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: var(--text-xs);
  color: var(--color-muted);
}

.testimonial-source svg {
  color: #4285F4;
}

/* 15. FAQ Accordion (AEO-01) */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  max-width: 860px;
  margin-inline: auto;
}

.faq-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item[open] {
  border-color: var(--color-primary-border);
}

.faq-summary {
  padding: 1.25rem 1.5rem;
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  user-select: none;
  list-style: none; /* Hide default triangle */
}

.faq-summary::-webkit-details-marker {
  display: none;
}

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-pill);
  background-color: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.faq-item[open] .faq-icon {
  transform: rotate(180deg);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

.faq-content {
  padding: 0 1.5rem 1.25rem 1.5rem;
  font-size: var(--text-sm);
  color: var(--color-muted);
  line-height: 1.6;
}

/* 16. Contact & Consultation Intake Form */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 4vw, 3.5rem);
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.contact-detail-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: 1.25rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

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

.contact-detail-text h4 {
  font-size: var(--text-base);
  margin-block-end: 0.2rem;
}

.contact-detail-text p {
  font-size: var(--text-sm);
  color: var(--color-muted);
  margin-bottom: 0;
}

.map-container {
  width: 100%;
  height: 280px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.contact-form-panel {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: clamp(1.5rem, 3.5vw, 2.5rem);
  box-shadow: var(--shadow-sm);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-control {
  width: 100%;
  min-height: 48px;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-bg);
  color: var(--color-text);
  font-size: var(--text-sm);
  transition: all var(--transition-fast);
}

.form-control:focus {
  background-color: var(--color-surface);
  border-color: var(--color-primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(28, 94, 88, 0.15);
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-block: var(--space-xs);
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--text-sm);
  color: var(--color-text);
  cursor: pointer;
}

.checkbox-input {
  width: 20px;
  height: 20px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.form-submit-feedback {
  display: none;
  padding: 1rem;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
}

.form-submit-feedback.is-success {
  display: block;
  background-color: var(--color-accent-soft);
  color: #274810;
  border: 1px solid #c0e090;
}

/* 17. CTA Callout Banner */
.cta-banner {
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-primary) 100%);
  color: #ffffff;
  border-radius: var(--radius-xl);
  padding: clamp(2rem, 5vw, 4rem);
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.cta-banner-content {
  max-width: 720px;
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

.cta-banner h2 {
  color: #ffffff;
  margin-block-end: var(--space-sm);
}

.cta-banner p {
  color: #d1dedc;
  font-size: var(--text-md);
  margin-block-end: var(--space-lg);
}

.cta-banner-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
}

/* 18. Footer */
.site-footer {
  background-color: var(--color-dark);
  color: #cbd5d2;
  font-size: var(--text-sm);
  padding-block-start: clamp(3rem, 5vw, 5rem);
  padding-block-end: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  margin-block-end: clamp(2rem, 4vw, 3.5rem);
}

.footer-col-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer-logo {
  height: 48px;
  width: auto;
  filter: brightness(0) invert(1);
}

.footer-desc {
  color: #a4b3b0;
  font-size: var(--text-sm);
  line-height: 1.6;
}

.footer-title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: #ffffff;
  margin-block-end: var(--space-md);
  letter-spacing: 0.02em;
}

.footer-links-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-link {
  color: #a4b3b0;
  transition: color var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

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

.footer-contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-contact-item {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  color: #a4b3b0;
}

.footer-contact-item svg {
  color: var(--color-accent);
  margin-top: 0.2rem;
  flex-shrink: 0;
}

.footer-bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  align-items: center;
  text-align: center;
  font-size: var(--text-xs);
  color: #7d8f8c;
}

.footer-bottom a {
  color: #cbd5d2;
}

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

.footer-credits {
  font-size: 0.75rem;
  color: #637774;
}

/* 19. Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-pill);
  background-color: var(--color-primary);
  color: #ffffff;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 990;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: all var(--transition-fast);
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-to-top:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

/* 20. Interactive Quick Fee Estimator */
.estimator-card {
  background-color: var(--color-surface);
  border: 2px solid var(--color-primary-border);
  border-radius: var(--radius-xl);
  padding: clamp(1.5rem, 3.5vw, 2.5rem);
  box-shadow: var(--shadow-md);
  margin-block: var(--space-2xl);
}

.estimator-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

.estimator-result-box {
  background-color: var(--color-dark);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-md);
}

.estimator-price-display {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
}

/* 21. Media Queries / Responsive Breakpoints */

/* Mobile Landscape & Tablets (768px+) */
@media (min-width: 768px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
  }

  .stat-grid {
    grid-template-columns: repeat(4, 1fr);
  }

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

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

  .pricing-cards-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .why-us-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .contact-grid {
    grid-template-columns: 1fr 1.2fr;
  }

  .estimator-grid {
    grid-template-columns: 1.2fr 0.8fr;
  }

  .form-row {
    grid-template-columns: 1fr 1fr;
  }

  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  }

  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* Desktop & Ultra-Wide (1024px+) */
@media (min-width: 1024px) {
  .sectors-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .process-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .header-phone-link {
    display: inline-flex;
  }
}

/* Navigation Menu Responsive Switch */
@media (max-width: 991px) {
  .nav-menu {
    display: none;
  }

  .header-actions .btn-sm {
    display: none;
  }

  .mobile-menu-toggle {
    display: inline-flex;
  }
}

/* Reduced Motion Override for Accessibility */
@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;
  }
}

/* Print Styles */
@media print {
  .site-header,
  .announcement-bar,
  .mobile-drawer,
  .back-to-top,
  .cta-banner,
  .footer-bottom {
    display: none !important;
  }

  body {
    background: #ffffff;
    color: #000000;
  }

  .section {
    padding-block: 1rem;
  }
}