/* ========================================
   Novair Landing Page - Pure HTML/CSS
   ======================================== */

/* CSS Variables */
:root {
  --primary: #074073;
  --primary-light: #064973;
  --accent: #73b2d9;
  --highlight: #71bbd9;
  --background: #f2f2f2;
  --foreground: #1a1a1a;
  --card: #ffffff;
  --muted: #6b7280;
  --border: #e5e7eb;
  --white: #ffffff;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--background);
  color: var(--foreground);
  line-height: 1.6;
  min-height: 100vh;
}

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

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

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 1024px) {
  .container {
    padding: 0 2rem;
  }
}

/* Utilities */
.hide-mobile {
  display: none;
}

.show-mobile {
  display: inline;
}

@media (min-width: 640px) {
  .hide-mobile {
    display: inline;
  }
  .show-mobile {
    display: none;
  }
}

.text-accent {
  color: var(--accent);
}

.text-highlight {
  color: var(--highlight);
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.btn-header {
  background: linear-gradient(135deg, var(--accent), var(--highlight));
  color: var(--white);
}

.btn-header:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-hero {
  background: linear-gradient(135deg, var(--accent), var(--highlight));
  color: var(--foreground);
  font-size: 1rem;
  padding: 1rem 2rem;
  box-shadow: 0 8px 30px rgba(115, 178, 217, 0.4);
}

.btn-hero:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(115, 178, 217, 0.5);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  font-size: 1rem;
  padding: 1rem 2rem;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* ========================================
   Header
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

@media (min-width: 768px) {
  .header-content {
    height: 80px;
  }
}

.logo img {
  height: 40px;
  width: auto;
}

@media (min-width: 768px) {
  .logo img {
    height: 48px;
  }
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 50%, var(--primary) 100%);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
}

.hero-blob-1 {
  top: -160px;
  right: -160px;
  width: 320px;
  height: 320px;
  background: rgba(115, 178, 217, 0.1);
}

.hero-blob-2 {
  bottom: -160px;
  left: -160px;
  width: 384px;
  height: 384px;
  background: rgba(113, 187, 217, 0.1);
}

.hero-blob-3 {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: rgba(115, 178, 217, 0.05);
}

/* Floating Icons */
.floating-icon {
  position: absolute;
  display: none;
}

@media (min-width: 1024px) {
  .floating-icon {
    display: block;
  }
}

.floating-icon-1 {
  top: 25%;
  right: 15%;
  color: rgba(115, 178, 217, 0.3);
  animation: float 4s ease-in-out infinite;
}

.floating-icon-2 {
  bottom: 25%;
  left: 10%;
  color: rgba(113, 187, 217, 0.3);
  animation: float 5s ease-in-out infinite 1s;
}

.floating-icon-3 {
  top: 33%;
  left: 20%;
  color: rgba(115, 178, 217, 0.2);
  animation: float-rotate 8s linear infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

@keyframes float-rotate {
  0% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(180deg); }
  100% { transform: translateY(0) rotate(360deg); }
}

.hero-content {
  position: relative;
  z-index: 10;
  padding-top: 6rem;
  padding-bottom: 4rem;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-title {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
  .hero-title {
    font-size: 2.25rem;
  }
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 3rem;
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: 3.75rem;
  }
}

.hero-description {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2.5rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}

@media (min-width: 768px) {
  .hero-description {
    font-size: 1.25rem;
  }
}

@media (min-width: 1024px) {
  .hero-description {
    font-size: 1.5rem;
  }
}

.hero-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
}

.hero-wave svg {
  width: 100%;
  height: auto;
  display: block;
}

/* Animations */
.animate-fade-up {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 0.8s ease forwards;
}

.delay-1 {
  animation-delay: 0.2s;
}

.delay-2 {
  animation-delay: 0.4s;
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========================================
   Institutional Section
   ======================================== */
.institutional {
  padding: 5rem 0;
  background: var(--background);
}

@media (min-width: 1024px) {
  .institutional {
    padding: 7rem 0;
  }
}

.institutional-grid {
  display: grid;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .institutional-grid {
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
  }
}

.section-label {
  display: inline-block;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.section-title {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--foreground);
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.25rem;
  }
}

@media (min-width: 1024px) {
  .section-title {
    font-size: 3rem;
  }
}

.section-description {
  font-size: 1.125rem;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

/* Features Grid */
.features-grid {
  display: grid;
  gap: 1.5rem;
}

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

.feature-card {
  background: var(--card);
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

.feature-card:hover {
  border-color: rgba(115, 178, 217, 0.5);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  color: var(--white);
  transition: box-shadow 0.3s ease;
}

.feature-card:hover .feature-icon {
  box-shadow: 0 8px 25px rgba(7, 64, 115, 0.3);
}

.feature-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--foreground);
  margin-bottom: 0.5rem;
}

.feature-description {
  font-size: 0.875rem;
  color: var(--muted);
}

/* ========================================
   CTA Section
   ======================================== */
.cta {
  position: relative;
  padding: 5rem 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 50%, var(--primary) 100%);
  overflow: hidden;
}

@media (min-width: 1024px) {
  .cta {
    padding: 7rem 0;
  }
}

.cta-bg {
  position: absolute;
  inset: 0;
}

.cta-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
}

.cta-blob-1 {
  top: 0;
  right: 0;
  width: 384px;
  height: 384px;
  background: rgba(115, 178, 217, 0.1);
}

.cta-blob-2 {
  bottom: 0;
  left: 0;
  width: 320px;
  height: 320px;
  background: rgba(113, 187, 217, 0.1);
}

.cta-content {
  position: relative;
  z-index: 10;
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.cta-title {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
  .cta-title {
    font-size: 2.25rem;
  }
}

@media (min-width: 1024px) {
  .cta-title {
    font-size: 3rem;
  }
}

.cta-description {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2.5rem;
  line-height: 1.8;
}

@media (min-width: 768px) {
  .cta-description {
    font-size: 1.25rem;
  }
}

.cta-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
}

@media (min-width: 640px) {
  .cta-buttons {
    flex-direction: row;
  }
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background: var(--primary);
  color: var(--white);
}

.footer-grid {
  display: grid;
  gap: 2.5rem;
  padding: 3rem 0;
}

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

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 4rem;
    padding: 4rem 0;
  }
}

.footer-logo {
  height: 48px;
  width: auto;
  margin-bottom: 1.5rem;
}

.footer-company-name {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
}

.footer-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.footer-item {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.footer-item svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--accent);
}

.footer-item p {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
}

.footer-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0;
  color: rgba(255, 255, 255, 0.8);
  transition: color 0.3s ease;
}

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

.footer-link svg {
  flex-shrink: 0;
  color: var(--accent);
}

.footer-link span {
  font-size: 0.875rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding: 1.5rem 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
}

/* ========================================
   WhatsApp Floating Button
   ======================================== */
.whatsapp-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: #25D366;
  border-radius: 50%;
  box-shadow: var(--shadow-lg);
  color: var(--white);
  transition: all 0.3s ease;
  animation: pulse-whatsapp 2s ease-in-out infinite;
}

.whatsapp-float:hover {
  background: #20BA5A;
  transform: scale(1.1);
}

.whatsapp-ripple {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: #25D366;
  animation: ripple 1.5s ease-out infinite;
  opacity: 0.3;
  pointer-events: none;
}

.whatsapp-tooltip {
  position: absolute;
  right: 100%;
  margin-right: 0.75rem;
  padding: 0.5rem 0.75rem;
  background: var(--foreground);
  color: var(--white);
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.whatsapp-float:hover .whatsapp-tooltip {
  opacity: 1;
}

@keyframes pulse-whatsapp {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 0 0 10px rgba(37, 211, 102, 0);
  }
}

@keyframes ripple {
  0% {
    transform: scale(1);
    opacity: 0.3;
  }
  100% {
    transform: scale(1.5);
    opacity: 0;
  }
}