/* ==========================================================================
   THE SHELF (منصة الرف) - PREMIUM PRODUCTIVE FAMILIES DESIGN SYSTEM
   Modern, Ultra-responsive, High-aesthetic Vanilla CSS
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@400;500;600;700;800;900&family=Outfit:wght@400;500;600;700;800&family=Tajawal:wght@400;500;700;800;900&display=swap');

/* --- Root Design Tokens --- */
:root {
  /* Brand Palette */
  --color-primary: #FF3A08;
  --color-primary-hover: #E03004;
  --color-primary-light: #FFF0EB;
  --color-primary-glow: rgba(255, 58, 8, 0.25);
  
  --color-dark: #1E1B18;
  --color-dark-surface: #2C2520;
  --color-dark-muted: #423832;
  
  --color-sand: #F5EBE0;
  --color-sand-light: #FAF4ED;
  --color-ivory: #FAF6F0;
  --color-white: #FFFFFF;
  --color-border: rgba(44, 37, 32, 0.08);
  --color-border-hover: rgba(255, 58, 8, 0.35);

  --color-emerald: #0E7955;
  --color-emerald-light: #E8F5EF;
  --color-amber: #D97706;
  --color-amber-light: #FEF3C7;
  --color-text-main: #2C2520;
  --color-text-muted: #6B5E55;
  --color-text-light: #9C8E84;

  /* Typography */
  --font-arabic: 'Tajawal', 'Cairo', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-english: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Elevations & Shadows */
  --shadow-sm: 0 2px 8px rgba(44, 37, 32, 0.04);
  --shadow-md: 0 8px 24px rgba(44, 37, 32, 0.08);
  --shadow-lg: 0 16px 40px rgba(44, 37, 32, 0.12);
  --shadow-glow: 0 10px 30px var(--color-primary-glow);
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.04);

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --radius-pill: 9999px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.5s cubic-bezier(0.16, 1, 0.3, 1);

  /* Container */
  --container-max: 1240px;
}

/* --- Global Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

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

body {
  font-family: var(--font-arabic);
  background-color: var(--color-ivory);
  color: var(--color-text-main);
  line-height: 1.65;
  overflow-x: hidden;
  position: relative;
}

html[lang="en"] body {
  font-family: var(--font-english);
}

/* Ambient Background Light Orbs */
body::before {
  content: '';
  position: fixed;
  top: -200px;
  right: -150px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 58, 8, 0.09) 0%, rgba(255, 255, 255, 0) 70%);
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  bottom: -200px;
  left: -150px;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(217, 119, 6, 0.08) 0%, rgba(255, 255, 255, 0) 70%);
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

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

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

button, input, select, textarea {
  font-family: inherit;
  font-size: 1rem;
}

/* ==========================================================================
   TOP ANNOUNCEMENT BAR
   ========================================================================== */
.top-announcement-bar {
  background: linear-gradient(90deg, #1E1B18, #2C2520, #1E1B18);
  color: #FFF5EE;
  font-size: 0.84rem;
  font-weight: 500;
  padding: 0.5rem 1rem;
  text-align: center;
  position: relative;
  z-index: 100;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  line-height: 1.5;
}

.top-announcement-bar .badge {
  display: inline-block;
  background: var(--color-primary);
  color: #FFF;
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-pill);
  font-size: 0.72rem;
  font-weight: 700;
  margin-inline-end: 0.5rem;
  vertical-align: middle;
}

.top-announcement-bar .announcement-text {
  vertical-align: middle;
}

/* ==========================================================================
   HEADER & NAVBAR
   ========================================================================== */
.main-header {
  position: sticky;
  top: 0;
  z-index: 99;
  background: rgba(250, 246, 240, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}

.main-header.scrolled {
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow-sm);
  border-bottom-color: rgba(44, 37, 32, 0.06);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
  gap: 1.5rem;
}

.brand-logo-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-logo-img {
  height: 48px;
  width: auto;
  object-fit: contain;
  transition: transform var(--transition-fast);
}

.brand-logo-wrap:hover .brand-logo-img {
  transform: scale(1.03);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-link {
  font-weight: 600;
  color: var(--color-text-main);
  font-size: 0.95rem;
  position: relative;
  padding: 0.35rem 0;
}

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

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

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

/* Mobile Menu Hamburger Button */
.btn-mobile-menu {
  display: none;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  width: 42px;
  height: 42px;
  padding: 9px 8px;
  cursor: pointer;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
  z-index: 101;
}

.btn-mobile-menu:hover {
  border-color: var(--color-primary);
}

.hamburger-bar {
  width: 22px;
  height: 2.2px;
  background: var(--color-dark);
  border-radius: var(--radius-pill);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  transform-origin: center;
}

.btn-mobile-menu.active .hamburger-bar:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
  background: var(--color-primary);
}

.btn-mobile-menu.active .hamburger-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.btn-mobile-menu.active .hamburger-bar:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
  background: var(--color-primary);
}

/* Mobile Navigation Drawer */
.mobile-nav-drawer {
  display: none;
  background: rgba(250, 246, 240, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 12px 30px rgba(44, 37, 32, 0.12);
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease, padding 0.3s ease;
  padding: 0 1.5rem;
}

.mobile-nav-drawer.active {
  max-height: 520px;
  opacity: 1;
  padding: 1.5rem 1.5rem 2rem;
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.mobile-nav-link {
  display: block;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-dark);
  padding: 0.65rem 0.5rem;
  border-radius: var(--radius-sm);
  border-bottom: 1px solid rgba(44, 37, 32, 0.05);
  transition: all var(--transition-fast);
}

.mobile-nav-link:hover {
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding-inline-start: 1rem;
}

.mobile-drawer-actions {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.mobile-drawer-cta {
  width: 100%;
  padding: 0.95rem;
  font-size: 1.05rem;
}

.mobile-drawer-wa {
  width: 100%;
  padding: 0.85rem;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--color-white);
}

/* Language Toggle Button */
.btn-lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-pill);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-text-main);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.btn-lang-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
}

.btn-lang-toggle .lang-flag {
  font-size: 1.05rem;
}

/* Primary CTA Button */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  background: linear-gradient(135deg, var(--color-primary), #E03004);
  color: var(--color-white);
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-pill);
  font-size: 0.95rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 16px var(--color-primary-glow);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 58, 8, 0.38);
  background: linear-gradient(135deg, #FF4B1E, var(--color-primary));
}

.btn-primary:active {
  transform: translateY(0);
}

/* Secondary Button */
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  background: var(--color-white);
  color: var(--color-text-main);
  border: 1.5px solid var(--color-border);
  padding: 0.65rem 1.35rem;
  border-radius: var(--radius-pill);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  padding: 4rem 0 3.5rem;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  align-items: center;
  gap: 3.5rem;
}

.hero-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  background: var(--color-emerald-light);
  color: var(--color-emerald);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-pill);
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  border: 1px solid rgba(14, 121, 85, 0.18);
  box-shadow: var(--shadow-sm);
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 900;
  line-height: 1.2;
  color: var(--color-dark);
  margin-bottom: 1.35rem;
  letter-spacing: -0.02em;
}

.hero-title .highlight {
  color: var(--color-primary);
  position: relative;
  display: inline-block;
}

.hero-title .highlight::after {
  content: '';
  position: absolute;
  bottom: 6px;
  right: 0;
  width: 100%;
  height: 12px;
  background: var(--color-primary-light);
  z-index: -1;
  border-radius: var(--radius-pill);
}

.hero-desc {
  font-size: 1.12rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 2rem;
  max-width: 580px;
}

.hero-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 2.25rem;
}

.hero-bullet-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--color-text-main);
}

.hero-bullet-icon {
  width: 22px;
  height: 22px;
  background: var(--color-emerald-light);
  color: var(--color-emerald);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 800;
  flex-shrink: 0;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-cta-group .btn-primary {
  padding: 0.95rem 2rem;
  font-size: 1.05rem;
}

.hero-cta-group .btn-secondary {
  padding: 0.95rem 1.75rem;
  font-size: 1.05rem;
}

/* Hero Visual & Floating Cards */
.hero-visual-wrap {
  position: relative;
}

.hero-image-frame {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 25px 60px rgba(44, 37, 32, 0.16);
  border: 4px solid var(--color-white);
  background: var(--color-sand);
}

.hero-image-main {
  width: 100%;
  height: 520px;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.hero-image-frame:hover .hero-image-main {
  transform: scale(1.02);
}

/* Floating Badges */
.floating-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: var(--radius-md);
  padding: 0.75rem 1.15rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 2;
  animation: float 4s ease-in-out infinite alternate;
}

.floating-card-1 {
  top: 8%;
  right: -5%;
  animation-delay: 0s;
}

.floating-card-2 {
  bottom: 12%;
  left: -8%;
  animation-delay: 1.8s;
}

.floating-card-3 {
  bottom: 35%;
  right: -4%;
  animation-delay: 0.9s;
}

html[lang="en"] .floating-card-1 {
  right: auto;
  left: -5%;
}

html[lang="en"] .floating-card-2 {
  left: auto;
  right: -8%;
}

html[lang="en"] .floating-card-3 {
  right: auto;
  left: -4%;
}

@keyframes float {
  0% { transform: translateY(0px); }
  100% { transform: translateY(-10px); }
}

.floating-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.floating-icon-wrap.green {
  background: var(--color-emerald-light);
  color: var(--color-emerald);
}

.floating-icon-wrap.amber {
  background: var(--color-amber-light);
  color: var(--color-amber);
}

.floating-text-wrap h5 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-dark);
}

.floating-text-wrap p {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ==========================================================================
   TRUST & GOVERNMENT ENDORSEMENT BAR
   ========================================================================== */
.trust-bar-section {
  padding: 2.25rem 0;
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.trust-bar-header {
  text-align: center;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.25rem;
}

.trust-ecosystem-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.6rem;
}

.trust-gov-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4.5rem;
  flex-wrap: wrap;
}

.trust-gov-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1.25rem;
  transition: all var(--transition-normal);
  opacity: 0.95;
}

.trust-gov-item:hover {
  opacity: 1;
  transform: translateY(-2px);
}

.trust-logo-img.sdb-logo {
  height: 52px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
}

.trust-logo-img.mc-logo {
  height: 48px;
  width: auto;
  max-width: 240px;
  object-fit: contain;
}

.trust-payments-row {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding-top: 0.5rem;
  position: relative;
}

.trust-payments-row::before {
  content: "";
  position: absolute;
  top: 0;
  width: 200px;
  height: 1px;
  background: radial-gradient(circle, var(--color-border) 0%, transparent 100%);
}

.trust-payment-badges {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.payment-badge-card {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: all var(--transition-normal);
  filter: drop-shadow(0 2px 5px rgba(0, 0, 0, 0.04));
}

.payment-badge-card:hover {
  transform: translateY(-2px);
  filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.08));
}

.payment-badge-img {
  height: 38px;
  width: auto;
  max-width: 110px;
  object-fit: contain;
  display: block;
}

/* ==========================================================================
   STATS COUNTER STRIP
   ========================================================================== */
.stats-strip {
  padding: 3.5rem 0;
  background: linear-gradient(135deg, var(--color-dark-surface), var(--color-dark));
  color: var(--color-white);
  position: relative;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-item {
  padding: 1rem;
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 25%;
  bottom: 25%;
  inset-inline-end: 0;
  width: 1px;
  background: rgba(255, 255, 255, 0.12);
}

.stat-number {
  font-size: 2.75rem;
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1.1;
  margin-bottom: 0.5rem;
  font-feature-settings: "tnum";
}

.stat-label {
  font-size: 0.98rem;
  color: #E0D7D0;
  font-weight: 600;
}

/* ==========================================================================
   INTERACTIVE EARNINGS CALCULATOR (OUT OF THE BOX)
   ========================================================================== */
.calculator-section {
  padding: 5.5rem 0;
  position: relative;
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem;
}

.section-tag {
  display: inline-block;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: 800;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-pill);
  margin-bottom: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.section-title {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--color-dark);
  line-height: 1.25;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.calculator-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: 0 20px 50px rgba(44, 37, 32, 0.08);
  border: 1px solid var(--color-border);
  padding: 3rem;
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.calc-controls-col {
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
}

.calc-group {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.calc-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-dark);
}

.calc-badge-val {
  background: var(--color-primary-light);
  color: var(--color-primary);
  padding: 0.35rem 0.95rem;
  border-radius: var(--radius-pill);
  font-size: 1.15rem;
  font-weight: 900;
}

/* Custom Styled Range Sliders */
.range-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 10px;
  border-radius: var(--radius-pill);
  background: #E0D7D0;
  outline: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: 3px solid var(--color-white);
  box-shadow: 0 2px 8px rgba(255, 58, 8, 0.45);
  transition: transform var(--transition-fast);
}

.range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.calc-min-max-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-light);
}

/* Results Box */
.calc-results-box {
  background: linear-gradient(145deg, #1E1B18, #2C2520);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  color: var(--color-white);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
  position: relative;
  overflow: hidden;
}

.calc-results-box::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 150px;
  height: 150px;
  background: radial-gradient(circle, rgba(255, 58, 8, 0.3) 0%, transparent 70%);
}

.calc-result-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.95rem;
}

.calc-result-row.highlight-net {
  border-bottom: 2px dashed rgba(255, 58, 8, 0.4);
  padding: 1.25rem 0;
  margin: 0.5rem 0;
}

.calc-result-row.highlight-net .label {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-white);
}

.calc-result-row.highlight-net .value {
  font-size: 1.85rem;
  font-weight: 900;
  color: #FF5C33;
}

.calc-result-row .value {
  font-weight: 800;
  font-size: 1.15rem;
}

.calc-disclaimer {
  font-size: 0.78rem;
  color: #A3968C;
  line-height: 1.5;
  margin-top: 1.25rem;
}

.calc-cta-btn {
  width: 100%;
  margin-top: 1.5rem;
  padding: 0.95rem;
  font-size: 1.05rem;
}

/* ==========================================================================
   FEATURES SECTION (WHY THE SHELF)
   ========================================================================== */
.features-section {
  padding: 5.5rem 0;
  background: var(--color-sand-light);
  position: relative;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.85rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-hover);
}

.feature-icon-wrap {
  width: 58px;
  height: 58px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(255, 58, 8, 0.08), rgba(255, 179, 138, 0.15));
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid rgba(255, 58, 8, 0.18);
  box-shadow: 0 4px 14px rgba(255, 58, 8, 0.08);
  transition: all var(--transition-normal);
}

.feature-icon-wrap svg {
  width: 28px;
  height: 28px;
  stroke: var(--color-primary);
  transition: all var(--transition-fast);
}

.feature-card:hover .feature-icon-wrap {
  transform: scale(1.08) translateY(-2px);
  background: linear-gradient(135deg, var(--color-primary), #E03004);
  box-shadow: 0 8px 24px var(--color-primary-glow);
  border-color: transparent;
}

.feature-card:hover .feature-icon-wrap svg {
  stroke: var(--color-white);
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-dark);
}

.feature-desc {
  font-size: 0.96rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ==========================================================================
   CATEGORY & SHOWCASE SECTION
   ========================================================================== */
.categories-section {
  padding: 5.5rem 0;
}

/* ==========================================================================
   CONCISE ICON-DRIVEN CATEGORIES SECTION
   ========================================================================== */
.categories-section {
  padding: 5.5rem 0;
}

.categories-compact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.cat-compact-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.15rem;
  border: 1.5px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.cat-compact-card::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--color-primary);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

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

.cat-compact-card:hover::before {
  opacity: 1;
}

.cat-compact-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--color-sand);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid rgba(44, 37, 32, 0.06);
  transition: all var(--transition-fast);
}

.cat-compact-icon svg {
  width: 26px;
  height: 26px;
  stroke: var(--color-primary);
  transition: all var(--transition-fast);
}

.cat-compact-card:hover .cat-compact-icon {
  background: var(--color-primary);
  transform: scale(1.05);
}

.cat-compact-card:hover .cat-compact-icon svg {
  stroke: var(--color-white);
}

.cat-compact-content {
  flex-grow: 1;
  min-width: 0;
}

.cat-compact-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-dark);
  margin-bottom: 0.25rem;
  transition: color var(--transition-fast);
}

.cat-compact-card:hover .cat-compact-title {
  color: var(--color-primary);
}

.cat-compact-desc {
  font-size: 0.84rem;
  color: var(--color-text-muted);
  line-height: 1.45;
  margin: 0;
}

.cat-compact-arrow {
  font-size: 1.25rem;
  color: var(--color-primary);
  opacity: 0.5;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.cat-compact-card:hover .cat-compact-arrow {
  opacity: 1;
  transform: translateX(-4px);
}

[dir="ltr"] .cat-compact-card:hover .cat-compact-arrow {
  transform: translateX(4px);
}

/* ==========================================================================
   3-STEP ONBOARDING JOURNEY
   ========================================================================== */
.steps-section {
  padding: 5.5rem 0;
  background: var(--color-sand-light);
  position: relative;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
  position: relative;
}

.step-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  position: relative;
  transition: transform var(--transition-normal);
}

.step-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.step-num-badge {
  width: 52px;
  height: 52px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 900;
  margin-bottom: 1.35rem;
  box-shadow: 0 6px 18px var(--color-primary-glow);
}

.step-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-dark);
  margin-bottom: 0.75rem;
}

.step-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ==========================================================================
   REGISTRATION FORM SECTION (WITH INTERACTIVE CAPTCHA)
   ========================================================================== */
.registration-section {
  padding: 6rem 0;
  position: relative;
}

.registration-card-wrap {
  max-width: 780px;
  margin: 0 auto;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: 0 25px 70px rgba(44, 37, 32, 0.12);
  border: 1.5px solid var(--color-border);
  padding: 3.5rem;
  position: relative;
  overflow: hidden;
}

.registration-card-wrap::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--color-primary), #E03004, var(--color-amber));
}

.reg-form {
  display: flex;
  flex-direction: column;
  gap: 1.65rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  position: relative;
}

.form-label {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-dark);
}

.form-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.form-input-icon-svg {
  position: absolute;
  inset-inline-start: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.form-input-icon-svg svg {
  width: 20px;
  height: 20px;
}

.form-input-wrap:focus-within .form-input-icon-svg {
  color: var(--color-primary);
}

/* Saudi Phone Input UX */
.phone-input-container {
  display: flex;
  align-items: center;
  position: relative;
}

.country-prefix-badge {
  position: absolute;
  inset-inline-start: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.55rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-dark);
  box-shadow: var(--shadow-sm);
  pointer-events: none;
  z-index: 2;
}

.country-prefix-badge .flag {
  font-size: 1rem;
}

.phone-input-control {
  padding-inline-start: 5.4rem !important;
  padding-inline-end: 2.75rem;
}

.phone-check-icon {
  position: absolute;
  inset-inline-end: 1rem;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #10B981;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  opacity: 0;
  transform: scale(0.7);
  transition: all var(--transition-fast);
  pointer-events: none;
}

.phone-check-icon.active {
  opacity: 1;
  transform: scale(1);
}

/* Form Trust Ribbon */
.form-trust-banner {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  background: linear-gradient(135deg, rgba(255, 58, 8, 0.05), rgba(16, 185, 129, 0.05));
  border: 1px solid rgba(255, 58, 8, 0.12);
  border-radius: var(--radius-md);
  padding: 0.75rem 1.25rem;
  margin-bottom: 2rem;
  text-align: center;
}

.form-trust-pill {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--color-dark);
}

.form-trust-pill .pill-dot {
  font-size: 1rem;
}

/* Form Guarantees Grid Under Submit */
.form-guarantees-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.85rem;
  margin-top: 0.5rem;
  padding-top: 1.25rem;
  border-top: 1px dashed var(--color-border);
}

.guarantee-chip {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.guarantee-chip svg {
  flex-shrink: 0;
  color: #10B981;
}

.form-control {
  width: 100%;
  padding: 0.85rem 1rem;
  padding-inline-start: 2.85rem;
  background: var(--color-sand-light);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-dark);
  font-size: 1rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  background: var(--color-white);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-glow);
}

.form-control.input-error {
  border-color: #BA1A1A;
  background: #FFF5F5;
}

.form-control.input-highlight {
  border-color: var(--color-primary) !important;
  box-shadow: 0 0 0 4px var(--color-primary-glow) !important;
  background: var(--color-white) !important;
  transition: all 0.3s ease;
}

/* Captcha Block */
.captcha-container {
  background: var(--color-sand-light);
  border: 1.5px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.captcha-title-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-dark);
}

.captcha-canvas-wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

#captcha-canvas {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

.btn-captcha-refresh {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.2rem;
  color: var(--color-text-main);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.btn-captcha-refresh:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  transform: scale(1.08);
}

.btn-captcha-refresh.rotating {
  transform: rotate(360deg);
  transition: transform 0.5s ease;
}

.captcha-hint-text {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* Checkbox */
.terms-row {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.92rem;
  color: var(--color-text-muted);
  cursor: pointer;
}

.terms-row input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
  margin-top: 0.2rem;
  cursor: pointer;
}

/* Error message box */
.form-feedback-msg {
  display: none;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 600;
}

.form-feedback-msg.show {
  display: block;
}

.form-feedback-msg.error-msg {
  background: #FEE2E2;
  color: #991B1B;
  border: 1px solid #F87171;
}

/* Submit Button */
.btn-submit-form {
  width: 100%;
  padding: 1.15rem;
  font-size: 1.15rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.btn-submit-form:disabled {
  opacity: 0.75;
  cursor: not-allowed;
}

/* Loading Spinner */
.spinner {
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #FFF;
  animation: spin 0.8s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.shake-anim {
  animation: shake 0.5s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
}

@keyframes shake {
  10%, 90% { transform: translate3d(-1px, 0, 0); }
  20%, 80% { transform: translate3d(2px, 0, 0); }
  30%, 50%, 70% { transform: translate3d(-4px, 0, 0); }
  40%, 60% { transform: translate3d(4px, 0, 0); }
}

.form-security-footer {
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

/* ==========================================================================
   SUCCESS MODAL
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(30, 27, 24, 0.65);
  backdrop-filter: blur(8px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  max-width: 540px;
  width: 100%;
  padding: 2.75rem;
  text-align: center;
  box-shadow: var(--shadow-lg);
  transform: scale(0.92);
  transition: transform var(--transition-normal);
  position: relative;
}

.modal-overlay.active .modal-content-card {
  transform: scale(1);
}

.modal-icon-success {
  width: 74px;
  height: 74px;
  border-radius: 50%;
  background: var(--color-emerald-light);
  color: var(--color-emerald);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.25rem;
  margin: 0 auto 1.5rem;
  box-shadow: 0 8px 24px rgba(14, 121, 85, 0.25);
}

.modal-title {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--color-dark);
  margin-bottom: 0.75rem;
}

.modal-desc {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 1.5rem;
}

.modal-ref-chip {
  background: var(--color-sand-light);
  border: 1.5px dashed var(--color-primary);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.5rem;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
  display: inline-block;
}

.modal-next-steps {
  background: #F8FAFC;
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  text-align: start;
  margin-bottom: 1.75rem;
  font-size: 0.9rem;
  color: var(--color-text-main);
  border: 1px solid #E2E8F0;
}

.modal-next-steps strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--color-dark);
}

.modal-actions-row {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.btn-whatsapp-modal {
  background: #25D366;
  color: #FFF;
  font-weight: 700;
  padding: 0.95rem;
  border-radius: var(--radius-pill);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  font-size: 1.05rem;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35);
  transition: all var(--transition-fast);
}

.btn-whatsapp-modal:hover {
  background: #1EBE5D;
  transform: translateY(-2px);
}

/* ==========================================================================
   TESTIMONIALS SECTION
   ========================================================================== */
.testimonials-section {
  padding: 5.5rem 0;
  background: var(--color-sand-light);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.test-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transition: all var(--transition-normal);
}

.test-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.test-stars {
  color: var(--color-amber);
  font-size: 1.1rem;
}

.test-quote {
  font-size: 1rem;
  color: var(--color-text-main);
  line-height: 1.75;
  font-style: italic;
  flex-grow: 1;
}

.test-author-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.test-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.2rem;
}

.test-author-info h6 {
  font-size: 0.98rem;
  font-weight: 800;
  color: var(--color-dark);
}

.test-author-info p {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   FAQ SECTION (ACCORDION)
   ========================================================================== */
.faq-section {
  padding: 5.5rem 0;
}

.faq-accordion-wrap {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.faq-question {
  width: 100%;
  padding: 1.35rem 1.75rem;
  background: none;
  border: none;
  text-align: start;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-dark);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.faq-icon {
  font-size: 1.25rem;
  transition: transform var(--transition-fast);
  color: var(--color-primary);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 1.75rem;
  color: var(--color-text-muted);
  font-size: 0.98rem;
  line-height: 1.8;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding-bottom: 1.5rem;
}

/* ==========================================================================
   MOBILE APP PREVIEW STRIP
   ========================================================================== */
.app-preview-section {
  padding: 5.5rem 0;
  background: linear-gradient(135deg, #1E1B18, #2C2520);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.app-preview-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 3.5rem;
}

.app-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 2rem 0;
}

.app-feat-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 1.05rem;
  font-weight: 600;
}

.app-feat-check {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--color-emerald);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.app-mockup-wrap {
  text-align: center;
  position: relative;
}

.app-mockup-img {
  max-height: 480px;
  margin: 0 auto;
  border-radius: var(--radius-xl);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.45);
  border: 4px solid rgba(255, 255, 255, 0.15);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.main-footer {
  background: #141210;
  color: #A3968C;
  padding: 4.5rem 0 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr 1fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand p {
  font-size: 0.92rem;
  line-height: 1.8;
  margin-top: 1rem;
}

.footer-col h5 {
  color: var(--color-white);
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 1.25rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: 0.92rem;
}

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

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
}

/* ==========================================================================
   FLOATING WIDGETS
   ========================================================================== */
.floating-whatsapp-btn {
  position: fixed;
  bottom: 2rem;
  inset-inline-end: 2rem;
  background: #25D366;
  color: #FFF;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.floating-whatsapp-btn:hover {
  transform: scale(1.1);
}

.floating-whatsapp-btn::after {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid #25D366;
  animation: pulseRing 2s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
}

@keyframes pulseRing {
  0% { transform: scale(0.9); opacity: 0.8; }
  100% { transform: scale(1.4); opacity: 0; }
}

#back-to-top {
  position: fixed;
  bottom: 1.75rem;
  inset-inline-end: 1.75rem;
  background: var(--color-white);
  color: var(--color-dark);
  border: 1px solid var(--color-border);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  z-index: 998;
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-fast);
  font-size: 1.1rem;
}

#back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}

#back-to-top:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-3px);
}

/* ==========================================================================
   COMPREHENSIVE RESPONSIVE DESIGN SYSTEM (ALL SCREEN SIZES)
   ========================================================================== */

/* --- 1. Large Desktops & Wide Monitors (>= 1440px) --- */
@media (min-width: 1440px) {
  :root {
    --container-max: 1320px;
  }
  .hero-title {
    font-size: 3.5rem;
  }
  .hero-image-main {
    height: 560px;
  }
}

/* --- 2. Laptops & Small Desktops (<= 1200px) --- */
@media (max-width: 1200px) {
  :root {
    --container-max: 1040px;
  }
  .hero-grid {
    gap: 2.5rem;
  }
  .trust-gov-row {
    gap: 3rem;
  }
  .features-grid, .showcase-grid {
    gap: 1.5rem;
  }
  .categories-compact-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* --- 3. Tablets & Small Laptops (<= 1024px) --- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .hero-content {
    text-align: center;
    max-width: 680px;
    margin: 0 auto;
  }
  .hero-desc {
    margin-inline: auto;
  }
  .hero-bullets {
    align-items: center;
  }
  .hero-cta-group {
    justify-content: center;
  }
  .hero-visual-wrap {
    max-width: 580px;
    margin: 0 auto;
    width: 100%;
  }
  .calculator-card {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    padding: clamp(1.75rem, 3.5vw, 2.75rem);
  }
  .features-grid, .showcase-grid, .categories-compact-grid, .steps-grid, .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.25rem;
  }
  .app-preview-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2.5rem;
  }
  .app-features-list {
    align-items: center;
  }
}

/* --- 4. Medium & Small Tablets (<= 900px) --- */
@media (max-width: 900px) {
  .nav-links {
    display: none;
  }
  .btn-mobile-menu {
    display: flex;
  }
  .mobile-nav-drawer {
    display: block;
  }
}

/* --- 5. Large Phones / Phablets (<= 768px) --- */
@media (max-width: 768px) {
  .top-announcement-bar {
    font-size: 0.76rem;
    padding: 0.45rem 0.75rem;
  }
  .brand-logo-img {
    height: 40px;
  }
  .hero-section {
    padding: 2.5rem 0 2rem;
  }
  .hero-title {
    font-size: clamp(2rem, 6.5vw, 2.75rem);
  }
  .hero-image-main {
    height: 380px;
  }
  
  /* Floating cards inside hero on mobile */
  .floating-card {
    padding: 0.55rem 0.85rem;
    gap: 0.55rem;
  }
  .floating-card-1 {
    top: 4%;
    inset-inline-end: 2%;
  }
  .floating-card-2 {
    bottom: 4%;
    inset-inline-start: 2%;
  }
  .floating-card-3 {
    display: none; /* Hide 3rd card on mobile to keep visual clutter low */
  }
  .floating-icon-wrap {
    width: 36px;
    height: 36px;
    font-size: 1.1rem;
  }
  .floating-text-wrap h5 {
    font-size: 0.82rem;
  }
  .floating-text-wrap p {
    font-size: 0.72rem;
  }

  /* Trust Bar */
  .trust-bar-section {
    padding: 1.75rem 0;
  }
  .trust-ecosystem-wrap {
    gap: 1.25rem;
  }
  .trust-gov-row {
    gap: 1.75rem 1.25rem;
  }
  .trust-logo-img.sdb-logo {
    height: 38px;
    max-width: 155px;
  }
  .trust-logo-img.mc-logo {
    height: 36px;
    max-width: 165px;
  }
  .trust-payment-badges {
    gap: 0.65rem;
  }
  .payment-badge-img {
    height: 32px;
    max-width: 88px;
  }

  /* Stats Grid */
  .stats-strip {
    padding: 2.5rem 0;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem 1rem;
  }
  .stat-item {
    padding: 0.5rem;
  }
  .stat-item:not(:last-child)::after {
    display: none;
  }
  .stat-number {
    font-size: 2.15rem;
  }
  .stat-label {
    font-size: 0.88rem;
  }

  /* Category Filter Pills (Native Horizontal Scroll on Touch) */
  .category-tabs-wrap {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    justify-content: flex-start;
    padding: 0.25rem 0.25rem 0.75rem;
    margin-bottom: 2rem;
  }
  .category-tabs-wrap::-webkit-scrollbar {
    display: none;
  }
  .cat-filter-pill {
    flex-shrink: 0;
    padding: 0.55rem 1.05rem;
    font-size: 0.85rem;
  }

  /* Grids to 1 column */
  .features-grid, .showcase-grid, .categories-compact-grid, .steps-grid, .testimonials-grid {
    grid-template-columns: 1fr;
    gap: 1.15rem;
  }
  .form-guarantees-grid {
    grid-template-columns: 1fr;
    gap: 0.65rem;
  }
  .form-trust-banner {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.35rem;
    padding: 0.75rem 0.35rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
  }
  .form-trust-pill {
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 0.2rem;
    font-size: 0.74rem;
    text-align: center;
    line-height: 1.25;
  }
  .form-trust-pill .pill-dot {
    font-size: 1.1rem;
  }

  .showcase-thumb-wrap {
    height: 210px;
  }

  /* Form */
  .registration-section {
    padding: 3.5rem 0;
  }
  .registration-card-wrap {
    padding: 2rem 1.35rem;
  }
  .form-row {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  /* Captcha */
  .captcha-container {
    padding: 1.15rem 1rem;
  }
}

/* --- 6. Small Phones (<= 640px) --- */
@media (max-width: 640px) {
  .nav-cta-btn {
    display: none; /* Hide header CTA button on mobile phones; accessible via hero and mobile drawer */
  }
}

/* --- 6. Small Phones (<= 540px - iPhone 12/13/14/15/16, Galaxy S, Pixel) --- */
@media (max-width: 540px) {
  .navbar {
    padding: 0.65rem 0;
  }
  .brand-logo-img {
    height: 36px;
  }
  .btn-lang-toggle {
    padding: 0.4rem 0.65rem;
    font-size: 0.8rem;
  }
  
  .container {
    padding: 0 1.15rem;
  }
  .section-head {
    margin-bottom: 1.75rem;
  }
  .section-tag {
    font-size: 0.75rem;
    padding: 0.28rem 0.75rem;
    margin-bottom: 0.5rem;
  }
  .section-title {
    font-size: 1.55rem;
    line-height: 1.35;
  }
  .section-subtitle {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-top: 0.45rem;
  }

  .hero-title {
    font-size: 1.85rem;
    line-height: 1.3;
  }
  .hero-desc {
    font-size: 0.92rem;
    line-height: 1.65;
  }
  .hero-bullet-item {
    font-size: 0.88rem;
    gap: 0.55rem;
  }
  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }
  .hero-cta-group .btn-primary,
  .hero-cta-group .btn-secondary {
    width: 100%;
    padding: 0.85rem 1.25rem;
    font-size: 0.98rem;
  }
  .hero-image-main {
    height: 290px;
  }

  /* Floating badges on small mobile */
  .floating-card-1 {
    top: 6px;
    inset-inline-end: 6px;
    padding: 0.4rem 0.65rem;
  }
  .floating-card-2 {
    bottom: 6px;
    inset-inline-start: 6px;
    padding: 0.4rem 0.65rem;
  }

  /* Category Cards on Mobile */
  .cat-compact-card {
    padding: 1.05rem 1rem;
    gap: 0.9rem;
    border-radius: var(--radius-md);
  }
  .cat-compact-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    border-radius: 10px;
  }
  .cat-compact-icon svg {
    width: 22px;
    height: 22px;
  }
  .cat-compact-title {
    font-size: 1.02rem;
    margin-bottom: 0.2rem;
  }
  .cat-compact-desc {
    font-size: 0.8rem;
    line-height: 1.4;
  }

  /* Features & Steps Cards */
  .feature-card, .step-card {
    padding: 1.35rem 1.15rem;
    border-radius: var(--radius-md);
  }
  .feature-title, .step-title {
    font-size: 1.05rem;
  }
  .feature-desc, .step-desc {
    font-size: 0.85rem;
    line-height: 1.55;
  }
  .step-number {
    width: 34px;
    height: 34px;
    font-size: 0.9rem;
  }

  /* Calculator on small mobile */
  .calculator-card {
    padding: 1.25rem 1rem;
    border-radius: var(--radius-lg);
  }
  .calc-results-box {
    padding: 1.35rem 1rem;
    border-radius: var(--radius-md);
  }
  .calc-result-row.highlight-net .label {
    font-size: 0.95rem;
  }
  .calc-result-row.highlight-net .value {
    font-size: 1.45rem;
  }

  /* Captcha stacking on mobile */
  .captcha-canvas-wrap {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }
  #captcha-canvas {
    max-width: 220px;
    width: 100%;
    margin: 0 auto;
    display: block;
  }

  /* Form */
  .registration-card-wrap {
    padding: 1.5rem 1rem;
    border-radius: var(--radius-lg);
  }
  .form-control {
    font-size: 16px; /* Prevents auto-zoom in mobile Safari */
  }
  .btn-submit-form {
    font-size: 1rem;
    padding: 0.95rem;
  }

  /* Testimonials */
  .testimonial-card {
    padding: 1.35rem 1.15rem;
    border-radius: var(--radius-md);
  }
  .testimonial-quote {
    font-size: 0.86rem;
    line-height: 1.6;
  }

  /* FAQ */
  .faq-question {
    padding: 1.1rem 1rem;
    font-size: 0.92rem;
    line-height: 1.45;
  }
  .faq-answer p {
    font-size: 0.85rem;
    line-height: 1.6;
  }

  /* Modal */
  .modal-content-card {
    padding: 1.75rem 1.25rem;
    margin: 0.75rem;
  }
  .modal-title {
    font-size: 1.35rem;
  }
  .modal-ref-chip {
    padding: 0.65rem 1rem;
    font-size: 1rem;
  }

  #back-to-top {
    width: 42px;
    height: 42px;
    bottom: 1.25rem;
    inset-inline-end: 1.25rem;
    font-size: 1rem;
  }
}

/* --- 7. Extra Small Phones (<= 375px - iPhone SE, Galaxy Fold outer screen, 320px) --- */
@media (max-width: 375px) {
  .container {
    padding: 0 0.85rem;
  }
  .top-announcement-bar {
    font-size: 0.76rem;
    padding: 0.4rem 0.5rem;
  }
  .brand-logo-img {
    height: 32px;
  }
  .nav-cta-btn {
    display: none;
  }
  .hero-title {
    font-size: 1.65rem;
  }
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }
  .stat-number {
    font-size: 1.85rem;
  }
  .trust-payment-badges {
    gap: 0.45rem;
  }
  .payment-badge-img {
    height: 28px;
    max-width: 78px;
  }
  .trust-logo-img.sdb-logo {
    height: 34px;
    max-width: 135px;
  }
  .trust-logo-img.mc-logo {
    height: 32px;
    max-width: 145px;
  }
  .calc-badge-val {
    font-size: 0.95rem;
    padding: 0.25rem 0.65rem;
  }
}