/* WhatsApp VPN — Style inspired by whatsapp.com */
:root {
  --wa-green: #25D366;
  --wa-dark: #075E54;
  --wa-teal: #128C7E;
  --wa-light: #DCF8C6;
  --wa-bg: #F0EBE3;
  --wa-chat-bg: #ECE5DD;
  --wa-dark-bg: #111B21;
  --wa-white: #ffffff;
  --wa-text: #1B1B1B;
  --wa-muted: #667781;
  --radius: 12px;
  --radius-lg: 20px;
  --container: 1200px;
}

* { margin:0; padding:0; box-sizing:border-box; }

body {
  font-family: 'Helvetica Neue', Helvetica, Arial, system-ui, sans-serif;
  color: var(--wa-text);
  background: var(--wa-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* HEADER */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--wa-white);
  border-bottom: 1px solid #e0e0e0;
  padding: 12px 0;
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--wa-text);
  font-weight: 700;
  font-size: 18px;
  flex-shrink: 0;
}
.logo-icon { flex-shrink: 0; }
.nav {
  display: flex;
  gap: 24px;
  margin-left: auto;
}
.nav a {
  text-decoration: none;
  color: var(--wa-muted);
  font-size: 14px;
  font-weight: 500;
  transition: color .2s;
}
.nav a:hover { color: var(--wa-dark); }

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all .2s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--wa-green);
  color: var(--wa-white);
}
.btn-primary:hover {
  background: #1fba59;
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  color: var(--wa-green);
  border: 2px solid var(--wa-green);
}
.btn-outline:hover {
  background: var(--wa-green);
  color: var(--wa-white);
}
.btn-sm { padding: 8px 18px; font-size: 13px; }
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-tg {
  background: #0088cc;
  color: var(--wa-white);
  padding: 10px 20px;
}
.btn-tg:hover { background: #006da3; }
.btn-web {
  background: var(--wa-green);
  color: var(--wa-white);
  padding: 10px 20px;
}
.btn-web:hover { background: #1fba59; }
.connect-btns {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 8px;
}

/* HERO */
.hero {
  background: var(--wa-bg);
  padding: 80px 0 60px;
  overflow: hidden;
}
.hero .container {
  display: flex;
  align-items: center;
  gap: 60px;
}
.hero-content {
  flex: 1;
  min-width: 0;
}
.hero h1 {
  font-size: 48px;
  line-height: 1.15;
  font-weight: 700;
  color: var(--wa-text);
  margin-bottom: 16px;
}
.hero h1 .accent {
  color: var(--wa-green);
}
.hero-sub {
  font-size: 18px;
  color: var(--wa-muted);
  margin-bottom: 24px;
  max-width: 500px;
}
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}
.badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  background: var(--wa-white);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--wa-dark);
  border: 1px solid #d4d4d4;
}
.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* PHONE MOCKUP */
.hero-visual {
  flex-shrink: 0;
  width: 300px;
}
.phone-mockup {
  background: var(--wa-white);
  border-radius: 28px;
  padding: 12px;
  box-shadow: 0 20px 60px rgba(0,0,0,.12);
  border: 2px solid #e0e0e0;
}
.phone-screen {
  background: var(--wa-chat-bg);
  border-radius: 18px;
  padding: 16px;
  min-height: 320px;
}
.chat-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--wa-dark);
  border-radius: 12px 12px 4px 4px;
  color: var(--wa-white);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}
.chat-bubble {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 8px;
  max-width: 85%;
  position: relative;
}
.chat-bubble--in {
  background: var(--wa-white);
  color: var(--wa-text);
  border-radius: 0 8px 8px 8px;
}
.chat-bubble--out {
  background: var(--wa-light);
  color: var(--wa-text);
  margin-left: auto;
  border-radius: 8px 0 8px 8px;
}

/* SECTIONS COMMON */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}
.section-header h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--wa-text);
  margin-bottom: 12px;
}
.section-sub {
  font-size: 16px;
  color: var(--wa-muted);
}

/* FEATURES */
.features {
  padding: 80px 0;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--wa-white);
  border: 1px solid #e8e8e8;
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: box-shadow .3s, transform .2s;
}
.feature-card:hover {
  box-shadow: 0 8px 30px rgba(0,0,0,.08);
  transform: translateY(-3px);
}
.feature-icon {
  margin-bottom: 16px;
}
.feature-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--wa-text);
}
.feature-card p {
  font-size: 14px;
  color: var(--wa-muted);
  line-height: 1.5;
}

/* STATS */
.stats-section {
  background: var(--wa-dark);
  padding: 48px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-card {
  color: var(--wa-white);
}
.stat-num {
  font-size: 36px;
  font-weight: 700;
  color: var(--wa-green);
}
.stat-label {
  font-size: 14px;
  color: rgba(255,255,255,.7);
  margin-top: 4px;
}

/* SERVERS */
.servers {
  padding: 80px 0;
  background: #fafafa;
}
.servers-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 12px;
}
.server-card {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  background: var(--wa-white);
  border: 1px solid #e8e8e8;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  transition: border-color .2s;
}
.server-card:hover { border-color: var(--wa-green); }
.flag { font-size: 20px; }

/* PRIVACY */
.privacy-section {
  padding: 80px 0;
}
.privacy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.privacy-content h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 24px;
}
.accordion-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.accordion-item {
  border: 1px solid #e8e8e8;
  border-radius: var(--radius);
  overflow: hidden;
}
.accordion-btn {
  width: 100%;
  text-align: left;
  padding: 16px 20px;
  background: var(--wa-white);
  border: none;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  position: relative;
  padding-right: 40px;
  color: var(--wa-text);
}
.accordion-btn::after {
  content: '+';
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  color: var(--wa-green);
}
.accordion-item.open .accordion-btn::after { content: '−'; }
.accordion-body {
  display: none;
  padding: 0 20px 16px;
  font-size: 14px;
  color: var(--wa-muted);
  line-height: 1.6;
}
.accordion-item.open .accordion-body { display: block; }
.privacy-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.privacy-icon-wrap {
  background: var(--wa-bg);
  border-radius: 50%;
  padding: 40px;
}

/* PRICING */
.pricing {
  padding: 80px 0;
  background: #fafafa;
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}
.price-card {
  background: var(--wa-white);
  border: 2px solid #e8e8e8;
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  position: relative;
  transition: transform .2s, box-shadow .2s;
}
.price-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,.08);
}
.price-card--popular {
  border-color: var(--wa-green);
  box-shadow: 0 8px 30px rgba(37,211,102,.15);
}
.price-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--wa-green);
  color: var(--wa-white);
  padding: 4px 16px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 700;
}
.price-period {
  font-size: 16px;
  color: var(--wa-muted);
  margin-bottom: 8px;
  font-weight: 500;
}
.price-amount {
  font-size: 42px;
  font-weight: 700;
  color: var(--wa-text);
  margin-bottom: 8px;
}
.price-amount sup {
  font-size: 20px;
  vertical-align: super;
  margin-right: 2px;
}
.price-saving {
  font-size: 13px;
  color: var(--wa-green);
  font-weight: 600;
  margin-bottom: 16px;
}
.price-card .btn {
  width: 100%;
  justify-content: center;
  margin-top: 12px;
}
.trial-note {
  text-align: center;
  margin-top: 24px;
  font-size: 14px;
  color: var(--wa-muted);
}

/* INSTALL */
.install {
  padding: 80px 0;
}
.install-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.install-step {
  text-align: center;
}
.step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--wa-green);
  color: var(--wa-white);
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.step-content h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}
.step-content p {
  font-size: 14px;
  color: var(--wa-muted);
}
.dl-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-top: 12px;
}
.dl-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--wa-dark);
  color: var(--wa-white);
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
  transition: background .2s;
}
.dl-btn:hover { background: var(--wa-teal); }
.dl-btn svg { width: 14px; height: 14px; }

/* REFERRAL */
.referral {
  padding: 80px 0;
  background: #fafafa;
}
.referral-box {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  background: var(--wa-white);
  border-radius: var(--radius-lg);
  padding: 40px;
  border: 1px solid #e8e8e8;
}
.referral-content h2 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
}
.referral-desc {
  color: var(--wa-muted);
  font-size: 15px;
  margin-bottom: 24px;
}
.referral-steps {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.ref-step {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.ref-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--wa-green);
  color: var(--wa-white);
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.ref-step span { font-size: 13px; color: var(--wa-muted); }
.referral-bonus {
  background: linear-gradient(135deg, var(--wa-dark), var(--wa-teal));
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  color: var(--wa-white);
}
.bonus-amount {
  font-size: 48px;
  font-weight: 700;
  color: var(--wa-green);
  margin-bottom: 8px;
}
.bonus-desc {
  font-size: 14px;
  opacity: .85;
  margin-bottom: 20px;
  line-height: 1.5;
}

/* FAQ */
.faq {
  padding: 80px 0;
}
.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.faq-item {
  border: 1px solid #e8e8e8;
  border-radius: var(--radius);
  overflow: hidden;
}
.faq-q {
  width: 100%;
  text-align: left;
  padding: 16px 44px 16px 20px;
  background: var(--wa-white);
  border: none;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  position: relative;
  color: var(--wa-text);
}
.faq-q::after {
  content: '+';
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  color: var(--wa-green);
  transition: transform .2s;
}
.faq-q.open::after { content: '−'; }
.faq-a {
  display: none;
  padding: 0 20px 16px;
  font-size: 14px;
  color: var(--wa-muted);
  line-height: 1.6;
}
.faq-a.open { display: block; }

/* CTA */
.cta-section {
  padding: 80px 0;
  background: var(--wa-dark);
}
.cta-inner {
  text-align: center;
  color: var(--wa-white);
}
.cta-icon {
  margin-bottom: 24px;
}
.cta-inner h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 12px;
}
.cta-inner p {
  font-size: 16px;
  opacity: .8;
  max-width: 500px;
  margin: 0 auto 24px;
}

/* FOOTER */
.footer {
  background: var(--wa-dark-bg);
  padding: 48px 0 0;
  color: rgba(255,255,255,.8);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--wa-white);
  margin-bottom: 12px;
}
.footer-tagline {
  font-size: 13px;
  line-height: 1.5;
  opacity: .7;
}
.footer-col-title {
  font-weight: 700;
  font-size: 14px;
  color: var(--wa-white);
  margin-bottom: 12px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.footer-links a {
  color: rgba(255,255,255,.6);
  text-decoration: none;
  font-size: 13px;
  transition: color .2s;
}
.footer-links a:hover { color: var(--wa-green); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid rgba(255,255,255,.1);
  margin-top: 40px;
  padding: 16px 0;
  font-size: 12px;
  opacity: .5;
}
.seo-desc {
  background: rgba(0,0,0,.2);
  padding: 16px 0;
}
.seo-desc p {
  font-size: 12px;
  line-height: 1.6;
  opacity: .5;
}
.seo-desc a {
  color: var(--wa-green);
  text-decoration: none;
}

/* MOBILE MENU */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--wa-text);
  border-radius: 2px;
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .servers-grid { grid-template-columns: repeat(4, 1fr); }
  .install-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .privacy-grid { grid-template-columns: 1fr; }
  .privacy-visual { order: -1; }
  .referral-box { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .hero .container { flex-direction: column; gap: 32px; }
  .hero-visual { width: 240px; }
  .hero h1 { font-size: 32px; }
  .hero-sub { font-size: 16px; }
  .nav { display: none; }
  .nav.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--wa-white);
    padding: 16px 24px;
    box-shadow: 0 8px 20px rgba(0,0,0,.1);
    z-index: 99;
  }
  .menu-toggle { display: flex; }
  .section-header h2 { font-size: 26px; }
  .features-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .servers-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; max-width: 340px; }
  .install-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 4px; }
}