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

:root {
  --primary: #0066FF;
  --primary-dark: #0047B3;
  --primary-light: #3D8BFF;
  --cyan: #00C2FF;
  --navy: #0A1628;
  --slate: #1E293B;
  --gray: #64748B;
  --light: #F1F5F9;
  --white: #FFFFFF;
  --gradient: linear-gradient(135deg, #0066FF 0%, #00C2FF 100%);
  --gradient-dark: linear-gradient(135deg, #0A1628 0%, #1E3A5F 100%);
  --shadow: 0 10px 40px rgba(0, 102, 255, 0.12);
  --shadow-lg: 0 20px 60px rgba(0, 102, 255, 0.18);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--slate);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== LANGUAGE SWITCH ===== */
.lang-switch {
  position: fixed;
  top: 20px;
  right: 24px;
  z-index: 1001;
  display: flex;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(12px);
  border-radius: 30px;
  padding: 4px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  border: 1px solid rgba(0,102,255,0.1);
}

.lang-btn {
  border: none;
  background: transparent;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--gray);
  cursor: pointer;
  border-radius: 20px;
  transition: var(--transition);
  font-family: inherit;
}

.lang-btn.active {
  background: var(--gradient);
  color: white;
}

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
  background: transparent;
}

.header.scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  box-shadow: 0 4px 30px rgba(0,0,0,0.06);
  padding: 12px 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--navy);
}

.logo-img {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.logo-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--slate);
  transition: var(--transition);
  position: relative;
}

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

.nav-link.cta-nav {
  background: var(--gradient);
  color: white !important;
  padding: 10px 22px;
  border-radius: 30px;
  font-weight: 600;
}

.nav-link.cta-nav:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--navy);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #F0F7FF 0%, #FFFFFF 60%);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse 80% 50% at 70% 20%, rgba(0,194,255,0.12) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 20% 80%, rgba(0,102,255,0.08) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.badge {
  display: inline-block;
  background: rgba(0,102,255,0.1);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 30px;
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

.hero h1 {
  font-size: clamp(2.1rem, 4.5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--navy);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--gray);
  margin-bottom: 36px;
  max-width: 520px;
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: var(--gradient);
  color: white;
  box-shadow: 0 8px 24px rgba(0,102,255,0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0,102,255,0.4);
}

.btn-secondary {
  background: white;
  color: var(--primary);
  border: 2px solid rgba(0,102,255,0.2);
}

.btn-secondary:hover {
  border-color: var(--primary);
  background: rgba(0,102,255,0.04);
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-img {
  max-width: 100%;
  max-height: 520px;
  object-fit: contain;
  filter: drop-shadow(0 20px 40px rgba(0,102,255,0.15));
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ===== SECTIONS ===== */
.section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}

.section-label {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.section-header h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: var(--navy);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--gray);
  line-height: 1.7;
}

/* ===== PROBLEM ===== */
.problem {
  background: var(--navy);
  color: white;
}

.problem .section-label {
  color: var(--cyan);
}

.problem .section-header h2 {
  color: white;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.problem-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
}

.problem-card:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-4px);
}

.problem-number {
  font-size: 2.8rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
  line-height: 1;
}

.problem-card p {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.6;
}

/* ===== SOLUTION ===== */
.solution {
  background: var(--light);
}

.solution-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step {
  background: white;
  border-radius: var(--radius);
  padding: 32px 24px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.04);
  transition: var(--transition);
  border: 1px solid rgba(0,0,0,0.04);
}

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

.step-num {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.step h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
}

.step p {
  font-size: 0.92rem;
  color: var(--gray);
  line-height: 1.6;
}

/* ===== PILLARS ===== */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.pillar-card {
  background: white;
  border-radius: var(--radius);
  padding: 40px 32px;
  border: 1px solid rgba(0,102,255,0.08);
  box-shadow: 0 4px 24px rgba(0,0,0,0.04);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.pillar-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient);
  opacity: 0;
  transition: var(--transition);
}

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

.pillar-card:hover::before {
  opacity: 1;
}

.pillar-icon {
  width: 56px;
  height: 56px;
  background: rgba(0,102,255,0.08);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--primary);
}

.pillar-icon svg {
  width: 28px;
  height: 28px;
}

.pillar-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 4px;
}

.pillar-subtitle {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 16px;
}

.pillar-card p:last-child {
  font-size: 0.95rem;
  color: var(--gray);
  line-height: 1.65;
}

/* ===== IMPACT ===== */
.impact {
  background: linear-gradient(180deg, #FFFFFF 0%, #F0F7FF 100%);
}

.impact-content {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
}

.impact-text h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.impact-text p {
  font-size: 1.05rem;
  color: var(--gray);
  margin-bottom: 16px;
  line-height: 1.7;
}

.impact-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.stat {
  background: white;
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
  border: 1px solid rgba(0,102,255,0.06);
}

.stat-value {
  font-size: 2.2rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--gray);
  font-weight: 500;
}

/* ===== CONTACT ===== */
.contact {
  background: var(--navy);
  padding: 100px 0;
}

.contact-box {
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.contact-box h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: white;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.contact-box > p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.7);
  margin-bottom: 40px;
  line-height: 1.7;
}

.contact-methods {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 20px 28px;
  transition: var(--transition);
  min-width: 260px;
}

.contact-card:hover {
  background: rgba(255,255,255,0.14);
  transform: translateY(-3px);
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: var(--gradient);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
}

.contact-icon svg {
  width: 22px;
  height: 22px;
}

.contact-icon.whatsapp {
  background: #25D366;
}

.contact-card strong {
  display: block;
  color: white;
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.contact-card span {
  color: rgba(255,255,255,0.65);
  font-size: 0.9rem;
}

/* ===== FOOTER ===== */
.footer {
  background: #061018;
  padding: 32px 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-brand .logo-text {
  font-weight: 700;
  font-size: 1.1rem;
}

.footer-by {
  color: rgba(255,255,255,0.4);
  font-size: 0.9rem;
}

.footer-copy {
  color: rgba(255,255,255,0.4);
  font-size: 0.85rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-ctas {
    justify-content: center;
  }
  
  .hero-visual {
    order: -1;
  }
  
  .hero-img {
    max-height: 360px;
  }
  
  .solution-steps {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .pillars-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }
  
  .impact-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: white;
    flex-direction: column;
    padding: 100px 32px 40px;
    gap: 24px;
    box-shadow: -10px 0 40px rgba(0,0,0,0.1);
    transition: right 0.35s ease;
  }
  
  .nav.open {
    right: 0;
  }
  
  .hamburger {
    display: flex;
    z-index: 1002;
  }
  
  .hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }
  
  .problem-grid {
    grid-template-columns: 1fr;
  }
  
  .solution-steps {
    grid-template-columns: 1fr;
  }
  
  .lang-switch {
    top: 16px;
    right: 70px;
  }
  
  .section {
    padding: 70px 0;
  }
  
  .contact-methods {
    flex-direction: column;
    align-items: center;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 100px 0 60px;
  }
  
  .hero h1 {
    font-size: 1.85rem;
  }
  
  .btn {
    width: 100%;
  }
  
  .hero-ctas {
    flex-direction: column;
  }
}