/* Tsar VPN - Sota VPN Style System */
:root {
  --sota-bg: #1C1C1C;
  --sota-bg-secondary: #252525;
  --sota-bg-tertiary: #2E2E2E;
  --sota-yellow: #FFD000;
  --sota-yellow-hover: #FFEB00;
  --sota-yellow-active: #E5BB00;
  --sota-text-white: #FFFFFF;
  --sota-text-gray: #A3A3A3;
  --sota-text-muted: #737373;
  --sota-status-green: #22C55E;
  --sota-card-border: rgba(255, 255, 255, 0.08);
  --sota-glass: rgba(255, 255, 255, 0.06);
  --sota-glass-hover: rgba(255, 255, 255, 0.12);
  --font-family: 'Noto Sans', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

html {
  font-family: var(--font-family);
  background-color: var(--sota-bg);
  color: var(--sota-text-white);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  background-color: var(--sota-bg);
  color: var(--sota-text-white);
  overflow-x: hidden;
  line-height: 1.5;
}

::selection {
  background-color: var(--sota-yellow);
  color: #000000;
}

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

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

/* Container */
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

@media (min-width: 768px) {
  .container {
    padding: 0 32px;
  }
}

@media (min-width: 1200px) {
  .container {
    padding: 0 40px;
  }
}

/* Header */
.tsar-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 50;
  background: rgba(28, 28, 28, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--sota-card-border);
  transition: background-color 0.2s ease;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 38px;
}

.brand-logo img {
  height: 34px;
  width: auto;
  display: block;
}

.nav-links {
  display: none;
  align-items: center;
  gap: 28px;
}

@media (min-width: 992px) {
  .nav-links {
    display: flex;
  }
}

.nav-link {
  font-size: 16px;
  font-weight: 500;
  color: var(--sota-text-white);
  transition: color 0.2s ease;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-actions .btn {
  display: none;
}

@media (min-width: 992px) {
  .header-actions .btn {
    display: inline-flex;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-white {
  background-color: #FFFFFF;
  color: #1C1C1C;
}

.btn-white:hover {
  background-color: #F0F0F0;
  transform: translateY(-1px);
}

.btn-yellow {
  background-color: var(--sota-yellow);
  color: #1C1C1C;
}

.btn-yellow:hover {
  background-color: var(--sota-yellow-hover);
  transform: translateY(-1px);
}

.btn-black {
  background-color: #1C1C1C;
  color: #FFFFFF;
}

.btn-black:hover {
  background-color: #000000;
}

.mobile-burger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 38px;
  height: 38px;
  padding: 8px;
  border-radius: 10px;
  background: var(--sota-glass);
}

@media (min-width: 992px) {
  .mobile-burger {
    display: none;
  }
}

.burger-line {
  display: block;
  height: 2px;
  width: 100%;
  background: #FFFFFF;
  border-radius: 2px;
  transition: 0.2s ease;
}

/* Mobile Nav Drawer */
.mobile-drawer {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  width: 100%;
  background: #1C1C1C;
  border-bottom: 1px solid var(--sota-card-border);
  padding: 24px;
  z-index: 49;
}

.mobile-drawer.active {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mobile-drawer .nav-link {
  font-size: 18px;
  padding: 8px 0;
}

/* Hero Section */
.hero-section {
  padding-top: 130px;
  padding-bottom: 60px;
}

@media (min-width: 992px) {
  .hero-section {
    padding-top: 150px;
    padding-bottom: 80px;
  }
}

.hero-grid {
  display: flex;
  flex-direction: column;
  gap: 40px;
  align-items: center;
}

@media (min-width: 992px) {
  .hero-grid {
    flex-direction: row;
    justify-content: space-between;
  }
}

.hero-content {
  flex: 1;
  max-width: 600px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.hero-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 42px;
  }
}

@media (min-width: 1200px) {
  .hero-title {
    font-size: 48px;
  }
}

.hero-description {
  font-size: 17px;
  font-weight: 400;
  color: var(--sota-text-white);
  line-height: 1.6;
}

@media (min-width: 768px) {
  .hero-description {
    font-size: 19px;
  }
}

.hero-ratings {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  font-size: 14px;
  font-weight: 500;
}

.rating-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #FFFFFF;
}

.rating-star {
  color: var(--sota-yellow);
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  width: 100%;
}

.hero-btn {
  padding: 14px 28px;
  font-size: 17px;
  width: 100%;
  text-align: center;
}

@media (min-width: 640px) {
  .hero-btn {
    width: auto;
  }
}

.hero-trial-note {
  font-size: 15px;
  color: var(--sota-text-gray);
}

.hero-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--sota-status-green);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--sota-status-green);
  box-shadow: 0 0 10px var(--sota-status-green);
  animation: pulse-green 2s infinite;
}

@keyframes pulse-green {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.hero-media {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  max-width: 480px;
  width: 100%;
}

.hero-img {
  width: 100%;
  max-width: 420px;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.5));
}

/* Devices Section */
.devices-card {
  background-color: var(--sota-bg-secondary);
  border-radius: 28px;
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  border: 1px solid var(--sota-card-border);
}

@media (min-width: 768px) {
  .devices-card {
    border-radius: 36px;
    padding: 44px 40px;
  }
}

.section-heading {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.2;
}

@media (min-width: 768px) {
  .section-heading {
    font-size: 36px;
  }
}

.section-subheading {
  font-size: 17px;
  color: var(--sota-text-gray);
  max-width: 600px;
}

.device-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.device-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--sota-glass);
  padding: 10px 18px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 500;
  backdrop-filter: blur(8px);
  transition: all 0.2s ease;
  border: 1px solid var(--sota-card-border);
}

.device-badge:hover {
  background: var(--sota-glass-hover);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}

.device-badge svg {
  width: 20px;
  height: 20px;
}

/* Guarantees Section */
.guarantees-section {
  padding: 60px 0;
}

.guarantees-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 32px;
}

.guarantees-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 768px) {
  .guarantees-row.two-cols {
    grid-template-columns: 1fr 1fr;
  }
}

.guarantee-card {
  background-color: var(--sota-bg-secondary);
  border-radius: 28px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  border: 1px solid var(--sota-card-border);
  position: relative;
  gap: 24px;
}

@media (min-width: 640px) {
  .guarantee-card {
    flex-direction: row;
    align-items: center;
  }
}

.guarantee-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.guarantee-title {
  font-size: 24px;
  font-weight: 600;
}

.guarantee-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.guarantee-item {
  position: relative;
  padding-left: 20px;
  font-size: 16px;
  color: var(--sota-text-white);
  line-height: 1.45;
}

.guarantee-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--sota-yellow);
}

.guarantee-img {
  width: 140px;
  height: 140px;
  object-fit: contain;
  flex-shrink: 0;
  align-self: center;
}

@media (min-width: 768px) {
  .guarantee-img {
    width: 160px;
    height: 160px;
  }
}

/* Reviews Section */
.reviews-section {
  padding: 60px 0;
}

.reviews-header {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}

@media (min-width: 768px) {
  .reviews-header {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }
}

.reviews-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 640px) {
  .reviews-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .reviews-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.review-card {
  background-color: var(--sota-bg-secondary);
  border-radius: 20px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  border: 1px solid var(--sota-card-border);
}

.review-stars {
  display: flex;
  gap: 4px;
  color: var(--sota-yellow);
  font-size: 14px;
}

.review-title {
  font-size: 17px;
  font-weight: 600;
}

.review-text {
  font-size: 14px;
  line-height: 1.5;
  color: var(--sota-text-gray);
  flex: 1;
}

.review-meta {
  font-size: 12px;
  color: var(--sota-text-muted);
  margin-top: 8px;
}

/* Steps Section */
.steps-section {
  padding: 60px 0;
}

.steps-card {
  background-color: var(--sota-bg-secondary);
  border-radius: 36px;
  padding: 36px 24px;
  border: 1px solid var(--sota-card-border);
}

@media (min-width: 768px) {
  .steps-card {
    padding: 48px 40px;
  }
}

.steps-inner {
  display: flex;
  flex-direction: column;
  gap: 36px;
  align-items: center;
}

@media (min-width: 992px) {
  .steps-inner {
    flex-direction: row;
    justify-content: space-between;
  }
}

.steps-content {
  flex: 1;
  max-width: 580px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.step-item {
  display: flex;
  align-items: center;
  gap: 18px;
}

.step-number {
  width: 52px;
  height: 52px;
  border-radius: 18px;
  background-color: var(--sota-bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  font-weight: 700;
  color: var(--sota-yellow);
  flex-shrink: 0;
  border: 1px solid var(--sota-card-border);
}

.step-text {
  font-size: 16px;
  color: var(--sota-text-white);
  line-height: 1.5;
}

.step-text a {
  color: var(--sota-yellow);
  font-weight: 600;
}

.step-text a:hover {
  text-decoration: underline;
}

.steps-media {
  flex: 1;
  display: flex;
  justify-content: center;
  max-width: 380px;
}

.steps-img {
  width: 100%;
  max-width: 320px;
  height: auto;
  object-fit: contain;
}

/* Gradient Promo Banner */
.promo-section {
  padding: 40px 0;
}

.promo-banner {
  background: linear-gradient(90deg, #FFD000 0%, #FFEB00 50%, #FFD000 100%);
  border-radius: 32px;
  padding: 44px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  color: #1C1C1C;
  box-shadow: 0 10px 30px rgba(255, 208, 0, 0.2);
}

@media (min-width: 768px) {
  .promo-banner {
    border-radius: 40px;
    padding: 56px 40px;
  }
}

.promo-title {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.15;
}

@media (min-width: 768px) {
  .promo-title {
    font-size: 38px;
  }
}

.promo-sub {
  font-size: 18px;
  font-weight: 500;
  max-width: 600px;
}

.promo-btn {
  margin-top: 8px;
  padding: 14px 32px;
  font-size: 16px;
  width: 100%;
  max-width: 320px;
  text-align: center;
}

@media (min-width: 640px) {
  .promo-btn {
    width: auto;
  }
}

/* Support Section */
.support-section {
  padding: 60px 0;
}

.support-header {
  margin-bottom: 32px;
}

.support-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 768px) {
  .support-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.support-card {
  background-color: var(--sota-bg-secondary);
  border-radius: 20px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  border: 1px solid var(--sota-card-border);
}

.support-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--sota-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--sota-yellow);
}

.support-title {
  font-size: 18px;
  font-weight: 600;
}

.support-text {
  font-size: 14px;
  color: var(--sota-text-gray);
  line-height: 1.5;
}

.support-link {
  margin-top: auto;
  padding-top: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--sota-yellow);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.support-link:hover {
  text-decoration: underline;
}

/* Footer */
.tsar-footer {
  border-top: 1px solid var(--sota-card-border);
  padding: 48px 0 36px;
  background: #171717;
}

.footer-top {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 32px;
}

@media (min-width: 768px) {
  .footer-top {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 14px;
  color: var(--sota-text-gray);
}

.footer-nav a:hover {
  color: var(--sota-yellow);
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 13px;
  color: var(--sota-text-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 24px;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}