/* =============================================
   CHARLSE TECH SERVICES - Mobile-First CSS
   ============================================= */

/* CSS Variables */
:root {
  --primary: #6c5ce7;
  --primary-dark: #5a4bd1;
  --primary-light: #a29bfe;
  --secondary: #00cec9;
  --secondary-dark: #00b5b0;
  --accent: #fd79a8;
  --accent-dark: #e84393;
  --dark: #0a0a1a;
  --dark-card: #12122a;
  --dark-surface: #1a1a3e;
  --dark-border: #2d2d5e;
  --text-primary: #ffffff;
  --text-secondary: #b8b8d4;
  --text-muted: #6c6c8a;
  --gradient-primary: linear-gradient(135deg, #6c5ce7 0%, #a29bfe 100%);
  --gradient-secondary: linear-gradient(135deg, #00cec9 0%, #55efc4 100%);
  --gradient-accent: linear-gradient(135deg, #fd79a8 0%, #e84393 100%);
  --gradient-card: linear-gradient(145deg, #12122a 0%, #1a1a3e 100%);
  --gradient-hero: linear-gradient(135deg, #0a0a1a 0%, #1a1a3e 50%, #0a0a1a 100%);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 30px rgba(108, 92, 231, 0.3);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--dark);
}
::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 3px;
}

/* =============================================
   ANIMATED BACKGROUND
   ============================================= */
.bg-particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.bg-particles .particle {
  position: absolute;
  border-radius: 50%;
  animation: float linear infinite;
  opacity: 0.15;
}

@keyframes float {
  0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
  10% { opacity: 0.15; }
  90% { opacity: 0.15; }
  100% { transform: translateY(-100px) rotate(720deg); opacity: 0; }
}

/* =============================================
   NAVIGATION
   ============================================= */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 12px 20px;
  transition: var(--transition);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(10, 10, 26, 0.85);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(10, 10, 26, 0.95);
  border-bottom: 1px solid var(--dark-border);
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.2rem;
}

.nav-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

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

.nav-links {
  display: none;
  list-style: none;
  gap: 28px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition);
  border-radius: 1px;
}

.nav-links a:hover {
  color: var(--text-primary);
}

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

.nav-cta {
  display: none;
}

.nav-cta .btn-nav {
  padding: 8px 20px;
  background: var(--gradient-primary);
  border: none;
  border-radius: var(--radius-xl);
  color: white;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition);
}

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

/* Mobile Menu Toggle */
.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
  z-index: 1001;
}

.nav-toggle span {
  width: 24px;
  height: 2.5px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

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

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

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

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  height: 100vh;
  background: rgba(10, 10, 26, 0.98);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu.active {
  right: 0;
}

.mobile-menu a {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: var(--transition);
}

.mobile-menu a:hover {
  color: var(--primary-light);
}

/* =============================================
   HERO SECTION
   ============================================= */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 100px 20px 60px;
  position: relative;
  background: var(--gradient-hero);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(108, 92, 231, 0.08) 0%, transparent 50%),
              radial-gradient(circle at 70% 50%, rgba(0, 206, 201, 0.06) 0%, transparent 50%);
  animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  0% { transform: translate(0, 0); }
  100% { transform: translate(-5%, -5%); }
}

.hero-content {
  max-width: 700px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(108, 92, 231, 0.15);
  border: 1px solid rgba(108, 92, 231, 0.3);
  border-radius: var(--radius-xl);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary-light);
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease;
}

.hero-badge .pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--secondary);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

.hero h1 {
  font-size: 2.4rem;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  animation: fadeInUp 0.8s ease 0.1s both;
}

.hero h1 .gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero h1 .gradient-text-2 {
  background: var(--gradient-secondary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
  animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-top: 48px;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-stat {
  text-align: center;
}

.hero-stat .stat-number {
  font-size: 1.8rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat .stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

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

/* =============================================
   BUTTONS
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-xl);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  outline: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 20px rgba(108, 92, 231, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(108, 92, 231, 0.5);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--dark-border);
}

.btn-secondary:hover {
  border-color: var(--primary);
  background: rgba(108, 92, 231, 0.1);
  transform: translateY(-3px);
}

.btn-accent {
  background: var(--gradient-accent);
  color: white;
  box-shadow: 0 4px 20px rgba(253, 121, 168, 0.4);
}

.btn-accent:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(253, 121, 168, 0.5);
}

.btn-success {
  background: var(--gradient-secondary);
  color: var(--dark);
  font-weight: 800;
  box-shadow: 0 4px 20px rgba(0, 206, 201, 0.4);
}

.btn-success:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 206, 201, 0.5);
}

.btn-sm {
  padding: 10px 22px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 16px 40px;
  font-size: 1.05rem;
}

.btn-full {
  width: 100%;
}

/* =============================================
   SECTIONS
   ============================================= */
.section {
  padding: 80px 20px;
  position: relative;
  z-index: 1;
}

.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background: rgba(108, 92, 231, 0.12);
  border: 1px solid rgba(108, 92, 231, 0.25);
  border-radius: var(--radius-xl);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary-light);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: 2rem;
  font-weight: 900;
  margin-bottom: 12px;
  line-height: 1.2;
}

.section-header p {
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
  font-size: 0.95rem;
}

/* =============================================
   SERVICES / PRODUCTS GRID
   ============================================= */
#services {
  background: linear-gradient(180deg, var(--dark) 0%, rgba(18, 18, 42, 0.5) 50%, var(--dark) 100%);
}

.products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.product-card {
  background: var(--gradient-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: var(--transition);
}

.product-card:hover {
  transform: translateY(-8px);
  border-color: rgba(108, 92, 231, 0.4);
  box-shadow: var(--shadow-glow);
}

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

.product-card.featured {
  border-color: rgba(108, 92, 231, 0.4);
  background: linear-gradient(145deg, rgba(108, 92, 231, 0.08), var(--dark-card));
}

.product-card.featured::before {
  opacity: 1;
}

.product-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 18px;
}

.product-icon.icon-whatsapp {
  background: rgba(37, 211, 102, 0.15);
}

.product-icon.icon-bug {
  background: rgba(253, 121, 168, 0.15);
}

.product-icon.icon-panel {
  background: rgba(108, 92, 231, 0.15);
}

.product-icon.icon-account {
  background: rgba(0, 206, 201, 0.15);
}

.product-icon.icon-custom {
  background: rgba(255, 234, 167, 0.15);
}

.product-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 4px 12px;
  background: var(--gradient-accent);
  border-radius: var(--radius-xl);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.product-card h3 {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.product-card .product-desc {
  color: var(--text-secondary);
  font-size: 0.88rem;
  margin-bottom: 18px;
  line-height: 1.5;
}

.product-features {
  list-style: none;
  margin-bottom: 22px;
}

.product-features li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.84rem;
  color: var(--text-secondary);
  padding: 4px 0;
}

.product-features li .check {
  color: var(--secondary);
  font-weight: 700;
  font-size: 0.9rem;
}

.product-price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 18px;
}

.product-price .currency {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary-light);
}

.product-price .amount {
  font-size: 2.2rem;
  font-weight: 900;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.product-price .period {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.product-usd {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 18px;
  margin-top: -12px;
}

/* =============================================
   CUSTOM PAYMENT SECTION
   ============================================= */
#custom-payment {
  background: linear-gradient(180deg, rgba(18, 18, 42, 0.5) 0%, var(--dark) 100%);
}

.custom-payment-card {
  max-width: 520px;
  margin: 0 auto;
  background: var(--gradient-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  position: relative;
  overflow: hidden;
}

.custom-payment-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-secondary);
}

.custom-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--primary);
  background: rgba(108, 92, 231, 0.08);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

/* =============================================
   EXCHANGE RATES
   ============================================= */
#exchange-rates {
  background: var(--dark);
}

.rates-container {
  max-width: 800px;
  margin: 0 auto;
}

.rates-card {
  background: var(--gradient-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  overflow: hidden;
}

.rates-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}

.rates-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
}

.rates-last-updated {
  font-size: 0.75rem;
  color: var(--text-muted);
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-xl);
}

.rates-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.rate-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition);
}

.rate-item:hover {
  background: rgba(108, 92, 231, 0.08);
  border-color: rgba(108, 92, 231, 0.2);
}

.rate-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.rate-flag {
  font-size: 1.5rem;
}

.rate-name {
  font-weight: 600;
  font-size: 0.9rem;
}

.rate-code {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.rate-value {
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--secondary);
}

/* =============================================
   WHY CHOOSE US
   ============================================= */
#why-us {
  background: linear-gradient(180deg, var(--dark) 0%, rgba(18, 18, 42, 0.3) 100%);
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  max-width: 900px;
  margin: 0 auto;
}

.feature-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px 20px;
  background: var(--gradient-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(108, 92, 231, 0.3);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: var(--radius-md);
  background: rgba(108, 92, 231, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.feature-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* =============================================
   CONTACT / CONSULTANCY
   ============================================= */
#contact {
  background: linear-gradient(180deg, rgba(18, 18, 42, 0.3) 0%, var(--dark) 100%);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.contact-info-card {
  background: var(--gradient-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
}

.contact-info-card h3 {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.contact-info-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-method {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition);
}

.contact-method:hover {
  border-color: var(--primary);
  background: rgba(108, 92, 231, 0.08);
}

.contact-method .method-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(108, 92, 231, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.contact-method .method-text {
  font-weight: 600;
  font-size: 0.9rem;
}

.contact-method .method-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  padding: 40px 20px 24px;
  background: rgba(10, 10, 26, 0.9);
  border-top: 1px solid var(--dark-border);
  text-align: center;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-logo {
  font-weight: 800;
  font-size: 1.3rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}

.footer p {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-bottom: 20px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 500;
  transition: var(--transition);
}

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

/* =============================================
   PAYMENT MODAL
   ============================================= */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 2000;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

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

.modal {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  max-width: 440px;
  width: 100%;
  position: relative;
  animation: modalIn 0.3s ease;
  max-height: 90vh;
  overflow-y: auto;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: none;
  color: var(--text-secondary);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
}

.modal h3 {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.modal .modal-subtitle {
  color: var(--text-secondary);
  font-size: 0.88rem;
  margin-bottom: 24px;
}

.modal .order-summary {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 18px;
  margin-bottom: 24px;
}

.modal .order-summary .order-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
}

.modal .order-summary .order-item .item-name {
  font-weight: 600;
  font-size: 0.9rem;
}

.modal .order-summary .order-item .item-price {
  font-weight: 800;
  color: var(--secondary);
}

.modal .order-summary .order-total {
  border-top: 1px solid var(--dark-border);
  margin-top: 12px;
  padding-top: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal .order-summary .order-total .total-label {
  font-weight: 700;
  font-size: 0.95rem;
}

.modal .order-summary .order-total .total-price {
  font-weight: 900;
  font-size: 1.3rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* =============================================
   TOAST NOTIFICATIONS
   ============================================= */
.toast-container {
  position: fixed;
  top: 80px;
  right: 20px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  padding: 14px 20px;
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.88rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: toastIn 0.3s ease;
  max-width: 340px;
}

.toast.success {
  border-color: rgba(0, 206, 201, 0.4);
}

.toast.error {
  border-color: rgba(253, 121, 168, 0.4);
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(100px); }
  to { opacity: 1; transform: translateX(0); }
}

/* =============================================
   LOADING SPINNER
   ============================================= */
.spinner {
  width: 20px;
  height: 20px;
  border: 2.5px solid rgba(255, 255, 255, 0.2);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

.loading-skeleton {
  background: linear-gradient(90deg, rgba(255,255,255,0.04) 25%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0.04) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

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

/* =============================================
   RESPONSIVE - TABLET (600px+)
   ============================================= */
@media (min-width: 600px) {
  .hero h1 {
    font-size: 3.2rem;
  }

  .hero p {
    font-size: 1.1rem;
  }

  .hero-buttons {
    flex-direction: row;
    justify-content: center;
  }

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

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

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

  .section-header h2 {
    font-size: 2.4rem;
  }

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

/* =============================================
   RESPONSIVE - DESKTOP (900px+)
   ============================================= */
@media (min-width: 900px) {
  .nav-links {
    display: flex;
  }

  .nav-cta {
    display: block;
  }

  .nav-toggle {
    display: none;
  }

  .hero h1 {
    font-size: 3.8rem;
  }

  .hero-stats {
    gap: 56px;
  }

  .hero-stat .stat-number {
    font-size: 2.4rem;
  }

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

  .section {
    padding: 100px 40px;
  }

  .section-header h2 {
    font-size: 2.8rem;
  }

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

/* =============================================
   RESPONSIVE - LARGE DESKTOP (1200px+)
   ============================================= */
@media (min-width: 1200px) {
  .hero h1 {
    font-size: 4.2rem;
  }

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

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

/* =============================================
   UTILITIES
   ============================================= */
.text-center { text-align: center; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }

/* Secure badge */
.secure-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 12px;
}

.secure-badge svg {
  width: 14px;
  height: 14px;
}

/* Divider */
.section-divider {
  width: 60px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: 2px;
  margin: 0 auto 20px;
}

/* Smooth reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==================== FLOATING WHATSAPP BUTTON ==================== */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 60px;
  height: 60px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.45);
  z-index: 9999;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  animation: whatsappPulse 2s infinite;
}
.whatsapp-float:hover {
  transform: scale(1.12);
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.6);
}
@keyframes whatsappPulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.45); }
  50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.7); }
}

/* WhatsApp hero button */
.btn-whatsapp {
  background: #25d366 !important;
  color: #fff !important;
  border: none;
}
.btn-whatsapp:hover {
  background: #1da851 !important;
}

/* ==================== FOOTER CREATOR ==================== */
.footer-creator {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--dark-border);
}
.footer-creator p {
  font-size: 0.78rem;
  color: var(--text-muted);
}
.footer-creator a {
  color: var(--primary-light);
  text-decoration: underline;
  transition: color 0.2s;
}
.footer-creator a:hover {
  color: var(--primary);
}

/* ==================== SPINNER ==================== */
.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--dark-border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Loading skeleton */
.loading-skeleton {
  background: linear-gradient(90deg, var(--dark-card) 25%, var(--dark-surface) 50%, var(--dark-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}