/* ============================================
   PRAHANTAM DESIGN SYSTEM
   Premium CRO-Optimized CSS
   ============================================ */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&display=swap');

/* ---------- Design Tokens ---------- */
:root {
  /* Colors */
  --color-primary: #0F62FE;
  --color-primary-dark: #0043CE;
  --color-primary-light: #E8F0FF;
  --color-primary-50: #EBF1FF;
  --color-cta: #FF6B2C;
  --color-cta-hover: #E55A1B;
  --color-cta-light: #FFF4EE;
  --color-success: #22C55E;
  --color-success-light: #ECFDF5;
  --color-success-dark: #16A34A;

  /* Neutrals */
  --color-white: #FFFFFF;
  --color-bg: #FAFBFC;
  --color-bg-alt: #F3F4F6;
  --color-border: #E5E7EB;
  --color-border-light: #F0F1F3;
  --color-text: #111827;
  --color-text-secondary: #4B5563;
  --color-text-muted: #6B7280;
  --color-text-light: #9CA3AF;
  --color-dark: #0A0F1C;
  --color-dark-card: #141B2D;
  --color-dark-border: #1E293B;

  /* Typography */
  --font-heading: 'Manrope', 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Manrope', 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, sans-serif;

  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --text-7xl: 4.5rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Layout */
  --max-width: 1200px;
  --max-width-lg: 1400px;
  --nav-height: 72px;

  /* Borders */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
  --shadow-xl: 0 20px 40px -5px rgba(0, 0, 0, 0.1), 0 8px 16px -4px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
  --shadow-cta: 0 4px 14px rgba(255, 107, 44, 0.35);
  --shadow-primary: 0 4px 14px rgba(15, 98, 254, 0.25);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

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

ul, ol {
  list-style: none;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }

p {
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 65ch;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.section-label::before {
  content: '';
  width: 20px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

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

section {
  padding: var(--space-24) 0;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius-lg);
  transition: all var(--duration-normal) var(--ease-out);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.1);
  opacity: 0;
  transition: opacity var(--duration-fast);
}

.btn:hover::after {
  opacity: 1;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--color-cta);
  color: var(--color-white);
  box-shadow: var(--shadow-cta);
}

.btn-primary:hover {
  background: var(--color-cta-hover);
  box-shadow: 0 6px 20px rgba(255, 107, 44, 0.4);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

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

.btn-outline-white {
  background: transparent;
  color: var(--color-white);
  border: 1.5px solid rgba(255,255,255,0.3);
}

.btn-outline-white:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.6);
}

.btn-blue {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-primary);
}

.btn-blue:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  padding: 10px 16px;
}

.btn-ghost:hover {
  color: var(--color-primary);
  background: var(--color-primary-50);
}

.btn-sm {
  font-size: var(--text-sm);
  padding: 10px 20px;
  border-radius: var(--radius-md);
}

.btn-lg {
  font-size: var(--text-lg);
  padding: 18px 36px;
  border-radius: var(--radius-xl);
}

.btn-icon {
  width: 20px;
  height: 20px;
}

/* ---------- Cards ---------- */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--duration-normal) var(--ease-out);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  border-color: transparent;
  transform: translateY(-2px);
}

.card-dark {
  background: var(--color-dark-card);
  border-color: var(--color-dark-border);
  color: var(--color-white);
}

.card-dark p {
  color: rgba(255,255,255,0.7);
}

/* ---------- Badges ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: var(--color-bg);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

.badge-primary {
  background: var(--color-primary-50);
  color: var(--color-primary);
  border-color: transparent;
}

.badge-success {
  background: var(--color-success-light);
  color: var(--color-success-dark);
  border-color: transparent;
}

.badge-cta {
  background: var(--color-cta-light);
  color: var(--color-cta);
  border-color: transparent;
}

/* ---------- Navigation ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: all var(--duration-normal) var(--ease-out);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.95);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.nav-logo-img {
  height: 44px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius-md);
  transition: all var(--duration-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
  background: var(--color-primary-50);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-call {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  transition: color var(--duration-fast);
}

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

.nav-call svg {
  width: 16px;
  height: 16px;
}

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}

.mobile-menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--duration-normal) var(--ease-out);
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-white);
  z-index: 999;
  padding: var(--space-8) var(--space-6);
  overflow-y: auto;
}

.mobile-menu.active {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  animation: slideDown 0.3s var(--ease-out);
}

.mobile-menu .nav-link {
  font-size: var(--text-lg);
  padding: var(--space-4) var(--space-4);
  border-radius: var(--radius-md);
}

.mobile-menu .nav-actions {
  flex-direction: column;
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

.mobile-menu .nav-actions .btn {
  width: 100%;
}

/* ---------- Nav Mega Menu (Products) ---------- */
.nav-item-dropdown {
  position: relative;
}

.nav-link-dropdown {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.nav-caret {
  width: 14px;
  height: 14px;
  transition: transform var(--duration-normal) var(--ease-out);
}

.nav-item-dropdown.open .nav-caret {
  transform: rotate(180deg);
}

.mega-menu {
  position: absolute;
  top: calc(100% + 14px);
  left: 0;
  width: 240px;
  max-width: calc(100vw - 48px);
  background: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  padding: 0;
  overflow: hidden;
  z-index: 1001;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity 300ms var(--ease-out), transform 300ms var(--ease-out), visibility 0s linear 300ms, width 220ms var(--ease-out);
  pointer-events: none;
}

.nav-item-dropdown.open .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
  transition: opacity 300ms var(--ease-out), transform 300ms var(--ease-out), visibility 0s linear 0s, width 220ms var(--ease-out);
}

.mega-menu.has-subpanel {
  width: 560px;
}

.mega-menu-simple {
  width: 260px;
  padding: var(--space-3) var(--space-2);
}

/* ---- Products: two-panel flyout ---- */
.mega-menu-panels {
  display: flex;
  align-items: stretch;
}

.mega-menu-categories {
  width: 240px;
  flex-shrink: 0;
  padding: var(--space-3) 0;
}

.mega-menu-categories + .mega-menu-subpanel {
  border-left: 1px solid var(--color-border-light);
}

.mega-menu-category-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: 10px var(--space-5);
  cursor: pointer;
  transition: background var(--duration-fast), color var(--duration-fast);
}

.mega-menu-category-row:hover,
.mega-menu-category-row.active {
  background: var(--color-primary-50);
  color: var(--color-primary);
}

.mega-menu-category-link {
  flex: 1;
  font-size: var(--text-sm);
  font-weight: 600;
  color: inherit;
}

.mega-menu-category-chevron {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--color-text-light);
  transition: color var(--duration-fast);
}

.mega-menu-category-row.active .mega-menu-category-chevron {
  color: var(--color-primary);
}

.mega-menu-subpanel {
  width: 320px;
  flex-shrink: 0;
  padding: var(--space-3) var(--space-2);
  display: none;
}

.mega-menu-subpanel.active {
  display: block;
}

.mega-menu-items {
  list-style: none;
  display: flex;
  flex-direction: column;
}

.mega-menu-item {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: 8px 10px;
  border-radius: var(--radius-md);
  transition: background var(--duration-fast), color var(--duration-fast), transform var(--duration-fast);
}

.mega-menu-item:hover,
.mega-menu-item:focus-visible {
  background: var(--color-primary-50);
  color: var(--color-primary);
  transform: translateX(4px);
}

/* Tablet: tap-to-open, no hover chrome */
@media (min-width: 769px) and (hover: none) {
  .mega-menu { cursor: default; }
}

/* Mobile accordion (inside .mobile-menu) */
.mobile-accordion { display: flex; flex-direction: column; }

.mobile-accordion-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: none;
  border: none;
  font-family: var(--font-body);
  text-align: left;
  cursor: pointer;
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: var(--space-4) var(--space-4);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast);
}

.mobile-accordion-toggle:hover,
.mobile-accordion-toggle.open,
.mobile-accordion-toggle.active {
  color: var(--color-primary);
  background: var(--color-primary-50);
}

.mobile-accordion-caret {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  transition: transform var(--duration-normal) var(--ease-out);
}

.mobile-accordion-toggle.open .mobile-accordion-caret {
  transform: rotate(180deg);
}

.mobile-accordion-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 300ms var(--ease-out);
}

.mobile-accordion-panel.open {
  grid-template-rows: 1fr;
}

.mobile-accordion-panel-inner {
  overflow: hidden;
  padding-left: var(--space-4);
}

.mobile-subaccordion-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  padding: var(--space-3) var(--space-4);
  text-align: left;
  cursor: pointer;
}

.mobile-subaccordion-link {
  display: block;
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  transition: background var(--duration-fast), color var(--duration-fast);
}

.mobile-subaccordion-link:hover,
.mobile-subaccordion-link:focus-visible {
  background: var(--color-primary-50);
  color: var(--color-primary);
}

.mobile-subaccordion-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 300ms var(--ease-out);
}

.mobile-subaccordion-panel.open {
  grid-template-rows: 1fr;
}

.mobile-subaccordion-panel-inner {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding-left: var(--space-4);
}

.mobile-subaccordion-item {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  transition: background var(--duration-fast), color var(--duration-fast);
}

.mobile-subaccordion-item:hover,
.mobile-subaccordion-item:focus-visible {
  background: var(--color-primary-50);
  color: var(--color-primary);
}

@media (max-width: 640px) {
  .mega-menu,
  .mega-menu.has-subpanel { width: 100%; }
  .mega-menu-panels { flex-direction: column; }
  .mega-menu-categories { width: 100%; }
  .mega-menu-subpanel { width: 100%; border-left: none; border-top: 1px solid var(--color-border-light); }
}

@media (prefers-reduced-motion: reduce) {
  .mega-menu,
  .nav-caret,
  .mega-menu-item,
  .mobile-accordion-panel,
  .mobile-subaccordion-panel,
  .mobile-accordion-caret {
    transition: none !important;
  }
}

/* ---------- Footer ---------- */
.footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--space-20) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: var(--space-12);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid var(--color-dark-border);
}

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

.footer-logo {
  display: inline-flex;
  align-items: center;
  width: fit-content;
}

.footer-logo .nav-logo-img {
  height: 64px;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--text-sm);
  line-height: 1.7;
}

.footer-socials {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.footer-social-link {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--color-dark-card);
  border: 1px solid var(--color-dark-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.6);
  transition: all var(--duration-fast);
}

.footer-social-link:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.footer-col h4 {
  color: white;
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-5);
}

.footer-col a {
  display: block;
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.6);
  padding: var(--space-2) 0;
  transition: color var(--duration-fast);
}

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

.footer-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.footer-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  background: var(--color-dark-card);
  border: 1px solid var(--color-dark-border);
  color: rgba(255,255,255,0.8);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-8);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-6);
}

.footer-bottom-links a {
  color: rgba(255, 255, 255, 0.4);
  transition: color var(--duration-fast);
}

.footer-bottom-links a:hover {
  color: rgba(255, 255, 255, 0.8);
}

.footer-credit {
  text-align: center;
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.35);
  padding-top: var(--space-4);
}

.footer-credit strong {
  color: rgba(255, 255, 255, 0.6);
  font-weight: 700;
}

/* ---------- Sticky WhatsApp ---------- */
.whatsapp-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 998;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: #25D366;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35);
  transition: all var(--duration-normal) var(--ease-out);
  animation: pulse-whatsapp 2s infinite;
}

.whatsapp-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.45);
}

.whatsapp-btn svg {
  width: 28px;
  height: 28px;
}

/* ---------- Sticky Mobile CTA ---------- */
.sticky-mobile-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 997;
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  padding: 12px var(--space-4);
  gap: var(--space-3);
  box-shadow: 0 -4px 20px rgba(0,0,0,0.08);
}

.sticky-mobile-cta .btn {
  flex: 1;
  font-size: var(--text-sm);
  padding: 12px 16px;
}

/* ---------- Exit Intent Modal ---------- */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  animation: fadeIn 0.3s var(--ease-out);
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  padding: var(--space-10);
  max-width: 480px;
  width: 100%;
  position: relative;
  box-shadow: var(--shadow-2xl);
  animation: slideUp 0.4s var(--ease-spring);
}

.modal-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  transition: all var(--duration-fast);
  font-size: var(--text-lg);
}

.modal-close:hover {
  background: var(--color-border);
  color: var(--color-text);
}

.modal h3 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-2);
}

.modal p {
  font-size: var(--text-sm);
  margin-bottom: var(--space-6);
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-white);
  transition: all var(--duration-fast);
  outline: none;
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-50);
}

.form-input::placeholder {
  color: var(--color-text-light);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 40px;
}

/* ---------- Animations ---------- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(40px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse-whatsapp {
  0%, 100% { box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35); }
  50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.55); }
}

@keyframes scroll-logos {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@keyframes count-up {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-on-scroll.delay-1 { transition-delay: 100ms; }
.animate-on-scroll.delay-2 { transition-delay: 200ms; }
.animate-on-scroll.delay-3 { transition-delay: 300ms; }
.animate-on-scroll.delay-4 { transition-delay: 400ms; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  h1 { font-size: var(--text-4xl); }
  h2 { font-size: var(--text-3xl); }
  
  section {
    padding: var(--space-16) 0;
  }

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

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

  .nav-logo-img { height: 34px; }

  h1 { font-size: var(--text-3xl); }
  h2 { font-size: var(--text-2xl); }
  h3 { font-size: var(--text-xl); }

  section {
    padding: var(--space-12) 0;
  }

  .container {
    padding: 0 var(--space-4);
  }

  /* Nav responsive */
  .nav-links,
  .nav-actions .nav-call {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .nav-actions .btn-primary {
    font-size: var(--text-sm);
    padding: 10px 16px;
  }

  /* Footer responsive */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }

  /* Sticky mobile CTA */
  .sticky-mobile-cta {
    display: flex;
  }

  .whatsapp-btn {
    bottom: 80px;
  }

  /* Modal */
  .modal {
    padding: var(--space-6);
  }
}

@media (max-width: 480px) {
  h1 { font-size: var(--text-2xl); }
  h2 { font-size: var(--text-xl); }

  .btn-lg {
    font-size: var(--text-base);
    padding: 14px 24px;
  }
}

/* ---------- Utilities ---------- */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-white { color: var(--color-white); }
.text-primary { color: var(--color-primary); }
.text-success { color: var(--color-success); }
.text-cta { color: var(--color-cta); }
.text-muted { color: var(--color-text-muted); }

.mx-auto { margin-left: auto; margin-right: auto; }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1024px) and (min-width: 769px) {
  .grid-3, .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}