* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #f7f8fb;
  color: #1d2433;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

a {
  text-decoration: none;
}

.stp-page {
  background: linear-gradient(135deg, #637de8 0%, #7550bf 55%, #7d48a8 100%);
  color: #fff;
}

.stp-header {
  width: min(1220px, calc(100% - 32px));
  margin: 0 auto;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.stp-brand {
  display: flex;
  align-items: center;
  gap: 9px;
  color: #fff;
  font-size: 22px;
  font-weight: 800;
}

.stp-brand-icon {
  font-size: 21px;
}

.stp-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.stp-nav a {
  color: rgba(255,255,255,.74);
  font-weight: 600;
  border: 0;
  background: none;
  padding: 0;
  border-radius: 0;
}

.stp-nav a:hover,
.stp-register {
  color: #fff !important;
}

.stp-hero {
  width: min(1220px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 600px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 58px;
  align-items: center;
  padding: 38px 0 80px;
}

.stp-hero h1 {
  margin: 0;
  max-width: 680px;
  font-size: clamp(44px, 5.6vw, 68px);
  line-height: 1.16;
  letter-spacing: -1.8px;
  font-weight: 900;
}

.stp-hero p {
  max-width: 650px;
  font-size: 23px;
  line-height: 1.45;
  color: rgba(255,255,255,.92);
  margin: 26px 0 0;
}

.stp-main-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  border-radius: 8px;
  background: #fff;
  color: #151927;
  padding: 0 22px;
  margin-top: 34px;
  font-size: 19px;
  font-weight: 700;
  box-shadow: 0 12px 28px rgba(0,0,0,.12);
}

.stp-main-btn:hover {
  transform: translateY(-1px);
}

.stp-login-inline {
  margin-top: 18px;
  max-width: 530px;
  border: 1px solid rgba(255,255,255,.24);
  background: rgba(255,255,255,.12);
  border-radius: 14px;
  padding: 16px;
  backdrop-filter: blur(10px);
}

.stp-login-title {
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 10px;
}

.stp-login-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

.stp-login-form input {
  width: 100%;
  min-height: 46px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,.26);
  background: rgba(255,255,255,.16);
  color: #fff;
  padding: 0 14px;
  font-size: 15px;
  outline: none;
}

.stp-login-form input::placeholder {
  color: rgba(255,255,255,.65);
}

.stp-login-form button {
  min-height: 46px;
  border: 0;
  border-radius: 8px;
  background: #fff;
  color: #191d2b;
  padding: 0 16px;
  font-weight: 800;
  cursor: pointer;
}

.stp-login-note,
.stp-login-link {
  display: block;
  margin-top: 9px;
  color: rgba(255,255,255,.75);
  font-size: 13px;
}

.stp-screen-wrap {
  display: flex;
  justify-content: center;
}

.stp-screen {
  width: min(620px, 100%);
  height: 380px;
  border-radius: 18px;
  background: #f5f6fb;
  color: #171b29;
  border: 1px solid rgba(255,255,255,.42);
  box-shadow: 0 30px 80px rgba(30,20,80,.28);
  overflow: hidden;
  position: relative;
}

.stp-screen-top {
  height: 30px;
  background: linear-gradient(135deg, #637de8, #7d48a8);
  color: #fff;
  padding: 0 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
}

.stp-screen-top div {
  display: flex;
  gap: 10px;
  opacity: .75;
}

.stp-screen-body {
  padding: 18px;
}

.stp-screen-body h3 {
  font-size: 18px;
  margin: 0 0 70px;
}

.stp-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.stp-metrics div {
  background: #fff;
  border-radius: 6px;
  padding: 16px 8px;
  text-align: center;
  box-shadow: 0 4px 16px rgba(0,0,0,.08);
}

.stp-metrics b {
  display: block;
  font-size: 20px;
  color: #637de8;
}

.stp-metrics span {
  display: block;
  font-size: 9px;
  margin-top: 6px;
}

.stp-panel-grid {
  margin-top: 12px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.stp-panel-box {
  background: #fff;
  border-radius: 7px;
  box-shadow: 0 4px 16px rgba(0,0,0,.08);
  overflow: hidden;
}

.stp-panel-title {
  background: #7549b7;
  color: #fff;
  padding: 7px 10px;
  font-size: 12px;
  font-weight: 800;
}

.stp-panel-box button {
  width: calc(100% - 14px);
  margin: 7px;
  height: 25px;
  border: 0;
  border-radius: 4px;
  color: #fff;
  background: #ffca17;
  font-size: 10px;
}

.stp-panel-box button:nth-child(3) {
  background: #7350bd;
}

.stp-panel-box button:nth-child(4) {
  background: #5e6b74;
}

.stp-agent {
  margin: 8px;
  border: 1px solid #e5e5ef;
  border-radius: 5px;
  padding: 8px;
  font-size: 11px;
}

.stp-dots {
  position: absolute;
  bottom: 30px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: 8px;
}

.stp-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,.7);
}

.stp-stats {
  background: #f7f8fb;
  min-height: 310px;
  width: min(1220px, calc(100% - 32px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-items: center;
  gap: 40px;
  text-align: center;
}

.stp-stats strong {
  display: block;
  font-size: clamp(42px, 5vw, 58px);
  line-height: 1;
  color: #6f61d1;
  font-weight: 900;
}

.stp-stats span {
  display: block;
  margin-top: 20px;
  color: #6d7380;
  font-size: 20px;
}

.stp-content {
  width: min(1220px, calc(100% - 32px));
  margin: 0 auto 28px;
  background: #fff;
  border-radius: 24px;
  padding: 42px;
  box-shadow: 0 20px 50px rgba(20,30,70,.06);
}

.stp-content-head span {
  color: #6f61d1;
  font-weight: 900;
  text-transform: uppercase;
  font-size: 13px;
}

.stp-content h2 {
  margin: 8px 0 24px;
  font-size: 36px;
  letter-spacing: -1px;
}

.stp-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.stp-card,
.stp-price {
  border: 1px solid #e9eaf2;
  border-radius: 18px;
  padding: 24px;
  background: #fafbff;
}

.stp-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: #eeecff;
  font-size: 24px;
}

.stp-card h3,
.stp-price h3 {
  margin: 18px 0 10px;
  font-size: 21px;
}

.stp-card p,
.stp-price p,
.stp-about p {
  color: #646b78;
  line-height: 1.55;
}

.stp-price span {
  color: #6f61d1;
  font-weight: 900;
}

.stp-price b {
  display: block;
  font-size: 34px;
  margin: 12px 0;
}

.stp-price-main {
  background: linear-gradient(135deg, #fafbff, #eeeeff);
  border-color: #d9d5ff;
}

.stp-about {
  max-width: 900px;
  font-size: 18px;
}

.stp-chat {
  position: fixed;
  right: 26px;
  bottom: 26px;
  width: 62px;
  height: 62px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #6f61d1;
  color: #fff;
  font-size: 26px;
  box-shadow: 0 18px 40px rgba(80,70,180,.35);
  z-index: 50;
}

.stp-footer {
  width: min(1220px, calc(100% - 32px));
  margin: 0 auto;
  padding: 22px 0 40px;
  color: #667080;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}

@media (max-width: 920px) {
  .stp-header {
    height: auto;
    padding: 18px 0;
    align-items: flex-start;
    flex-direction: column;
  }

  .stp-nav {
    gap: 14px;
    flex-wrap: wrap;
  }

  .stp-hero {
    grid-template-columns: 1fr;
    padding-top: 40px;
  }

  .stp-login-form {
    grid-template-columns: 1fr;
  }

  .stp-stats,
  .stp-card-grid {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 48px 0;
  }

  .stp-metrics,
  .stp-panel-grid {
    grid-template-columns: 1fr 1fr;
  }

  .stp-content {
    padding: 26px;
  }
}