@import url("https://fonts.googleapis.com/css2?family=Onest:wght@400;500;600;700&display=swap");

:root {
  --ms-page: #181822;
  --ms-header: #12121b;
  --ms-card: #201d32;
  --ms-elevated: #26233c;
  --ms-footer: #1b1638;
  --ms-text: #eef0f6;
  --ms-muted: #9aa0b4;
  --ms-accent: #7f6bff;
  --ms-border: #2e2a48;
  --container: 1600px;
  --pad: 20px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Onest", system-ui, sans-serif;
  background: var(--ms-page);
  color: var(--ms-text);
  line-height: 1.5;
}

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

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

button,
input,
textarea {
  font: inherit;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

.section-pad {
  padding-left: var(--pad);
  padding-right: var(--pad);
}

@media (min-width: 768px) {
  :root {
    --pad: 80px;
  }
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--ms-header);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

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

@media (min-width: 1024px) {
  .header-top {
    height: 100px;
  }
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo span {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.9px;
}

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

.nav-desktop a {
  font-size: 15px;
  color: rgba(238, 240, 246, 0.86);
}

.nav-desktop a:hover {
  color: var(--ms-text);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.header-contacts {
  display: none;
  align-items: center;
  gap: 16px;
}

.header-contacts .phone {
  font-size: 15px;
  font-weight: 500;
}

.header-contacts .region {
  font-size: 12px;
  color: var(--ms-muted);
  text-align: right;
}

.menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--ms-border);
  border-radius: 12px;
  background: transparent;
  color: var(--ms-text);
  cursor: pointer;
}

.mobile-nav {
  display: none;
  border-top: 1px solid var(--ms-border);
  padding: 16px 20px;
  background: var(--ms-header);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.mobile-nav.open {
  display: block;
}

.mobile-nav a {
  display: block;
  padding: 8px 0;
  font-size: 15px;
}

@media (min-width: 1024px) {
  .nav-desktop,
  .header-contacts {
    display: flex;
  }
  .menu-btn {
    display: none;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 32px;
  border-radius: 16px;
  border: none;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.2s;
}

.btn:hover {
  opacity: 0.9;
}

.btn-primary {
  background: linear-gradient(90deg, #7f6bff, #5548aa);
  color: var(--ms-text);
}

.btn-ghost {
  background: transparent;
  border: 1px solid rgba(238, 240, 246, 0.22);
  color: var(--ms-text);
}

/* Cards */
.card {
  border: 1px solid var(--ms-border);
  border-radius: 24px;
  background: var(--ms-card);
}

.card-sm {
  border: 1px solid var(--ms-border);
  border-radius: 20px;
  background: var(--ms-card);
}

/* Hero */
.hero-wrap {
  padding: 0 var(--pad) 40px;
}

.hero {
  position: relative;
  overflow: hidden;
  max-width: var(--container);
  margin: 0 auto;
  padding: 64px 32px 72px 40px;
  border-radius: 40px;
  background: linear-gradient(180deg, #0c0c16 0%, #16122a 55%, #1c1630 100%);
}

.hero-glow-purple,
.hero-glow-warm {
  position: absolute;
  pointer-events: none;
}

.hero-glow-purple {
  right: -120px;
  top: 180px;
  width: 640px;
  height: 420px;
  display: none;
}

.hero-glow-warm {
  left: -80px;
  bottom: -40px;
  width: 520px;
  height: 360px;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 40px;
  align-items: center;
}

@media (min-width: 1024px) {
  .hero {
    padding: 64px 64px 72px 80px;
  }
  .hero-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
  .hero-glow-purple {
    display: block;
  }
}

.hero-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ms-accent);
}

.hero h1 {
  margin: 24px 0 0;
  font-size: 32px;
  font-weight: 600;
  line-height: 1.17;
}

@media (min-width: 768px) {
  .hero h1 {
    font-size: 48px;
    line-height: 56px;
  }
}

.hero-desc {
  margin: 24px 0 0;
  max-width: 560px;
  font-size: 17px;
  line-height: 26px;
  color: rgba(238, 240, 246, 0.82);
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 24px;
}

@media (min-width: 640px) {
  .hero-actions {
    flex-direction: row;
  }
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  margin-top: 24px;
  padding-top: 12px;
}

.hero-stats strong {
  display: block;
  font-size: 32px;
  font-weight: 600;
  line-height: 36px;
}

.hero-stats span {
  font-size: 14px;
  color: var(--ms-muted);
}

/* Phone mockup */
.phone-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

.phone {
  width: 280px;
  height: 580px;
  padding: 10px;
  border-radius: 40px;
  border: 2px solid rgba(255, 255, 255, 0.16);
  background: #0a0a10;
  box-shadow: 0 24px 20px rgba(0, 0, 0, 0.45);
}

.phone-screen {
  height: 100%;
  padding: 22px 18px 20px;
  border-radius: 30px;
  background: linear-gradient(180deg, #121020, #1c1834);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.phone-top {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 500;
}

.phone-top span:last-child {
  font-size: 11px;
  color: var(--ms-muted);
}

.phone-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--ms-muted);
}

.phone-temp {
  font-size: 56px;
  font-weight: 600;
  line-height: 60px;
}

.phone-sub {
  font-size: 12px;
  line-height: 16px;
  color: var(--ms-muted);
}

.phone-modes {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.mode-pill {
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
}

.mode-pill.active {
  background: var(--ms-accent);
}

.phone-chart {
  padding: 12px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.06);
}

.phone-chart p {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 500;
}

.phone-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  font-size: 12px;
}

.phone-row span:last-child {
  font-weight: 500;
  color: var(--ms-accent);
}

.phone-caption {
  font-size: 13px;
  color: var(--ms-muted);
}

/* Sections */
.section {
  padding: 72px var(--pad);
}

.section-title {
  margin: 0;
  font-size: 28px;
  font-weight: 600;
  line-height: 1.2;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 36px;
    line-height: 44px;
  }
}

.section-title.center {
  text-align: center;
}

.section-desc {
  margin: 12px 0 0;
  max-width: 720px;
  font-size: 17px;
  line-height: 26px;
  color: var(--ms-muted);
}

.section-desc.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

/* Why */
.why-grid {
  display: grid;
  gap: 24px;
  margin-top: 40px;
}

@media (min-width: 1024px) {
  .why-grid {
    grid-template-columns: 420px 1fr;
  }
}

.why-item {
  display: flex;
  gap: 16px;
  width: 100%;
  padding: 18px 16px;
  border: none;
  border-radius: 16px;
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.why-item.active {
  background: rgba(127, 107, 255, 0.22);
}

.why-num {
  font-size: 16px;
  font-weight: 600;
  color: var(--ms-accent);
}

.why-item.active .why-num {
  color: #fff;
}

.why-item h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
}

.why-item p {
  margin: 4px 0 0;
  max-width: 300px;
  font-size: 14px;
  line-height: 20px;
  color: var(--ms-muted);
}

.why-card {
  padding: 36px 32px;
  border-radius: 24px;
  background: linear-gradient(180deg, #201c3a, #141224);
}

.why-card-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--ms-accent);
}

.why-card h3 {
  margin: 16px 0 0;
  font-size: 24px;
  font-weight: 600;
  line-height: 34px;
}

.why-card p {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 22px;
  color: var(--ms-muted);
}

/* Features grid */
.features-top {
  display: grid;
  gap: 16px;
  margin-top: 40px;
}

@media (min-width: 768px) {
  .features-top {
    grid-template-columns: 2fr 1fr;
  }
}

.features-mid {
  display: grid;
  gap: 16px;
  margin-top: 16px;
}

@media (min-width: 768px) {
  .features-mid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  padding: 28px;
  min-height: 220px;
}

.feature-card.tall {
  min-height: 260px;
}

.feature-card.wide {
  margin-top: 16px;
  min-height: 180px;
}

.feature-num {
  font-size: 12px;
  font-weight: 500;
  color: var(--ms-accent);
}

.feature-card h3 {
  margin: 48px 0 0;
  font-size: 20px;
  font-weight: 600;
  line-height: 28px;
}

.feature-card.wide h3 {
  font-size: 22px;
}

.feature-card p {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 22px;
  color: var(--ms-muted);
}

/* Compatibility */
.compat-card {
  padding: 32px;
}

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

.compat-grid {
  display: grid;
  gap: 32px;
}

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

.compat-label {
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ms-accent);
}

.compat-grid h3 {
  margin: 12px 0 0;
  font-size: 24px;
  font-weight: 600;
  line-height: 1.3;
}

@media (min-width: 768px) {
  .compat-grid h3 {
    font-size: 32px;
  }
}

.compat-grid p {
  margin: 16px 0 0;
  font-size: 17px;
  line-height: 26px;
  color: var(--ms-muted);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 32px;
}

.tag {
  padding: 6px 12px;
  border-radius: 12px;
  border: 1px solid var(--ms-border);
  background: var(--ms-elevated);
  font-size: 13px;
  color: var(--ms-muted);
}

/* Cards grid */
.cards-3 {
  display: grid;
  gap: 16px;
  margin-top: 40px;
}

@media (min-width: 640px) {
  .cards-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .cards-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.scenario-card {
  padding: 24px;
}

.scenario-card h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
}

.scenario-card p {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 22px;
  color: var(--ms-muted);
}

.scenario-card .tags {
  margin-top: 16px;
}

/* Nuances */
.nuances-grid {
  display: grid;
  gap: 16px;
  margin-top: 40px;
}

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

.nuance-item {
  display: flex;
  gap: 16px;
  padding: 24px;
  border-radius: 16px;
  border: 1px solid var(--ms-border);
  background: rgba(38, 35, 60, 0.5);
}

.nuance-num {
  font-size: 16px;
  font-weight: 600;
  color: var(--ms-accent);
}

.nuance-item h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
}

.nuance-item p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 22px;
  color: var(--ms-muted);
}

/* Works */
.works-grid {
  display: grid;
  gap: 16px;
  margin-top: 40px;
}

@media (min-width: 1024px) {
  .works-grid {
    grid-template-columns: 1.5fr 1fr;
  }
}

.work-image {
  border-radius: 24px;
  background: linear-gradient(135deg, var(--ms-elevated), var(--ms-card), rgba(127, 107, 255, 0.2));
  aspect-ratio: 760 / 380;
}

.work-image.sm {
  border-radius: 16px;
  aspect-ratio: 504 / 168;
}

.work-meta {
  margin: 16px 0 0;
  font-size: 13px;
  color: var(--ms-muted);
}

.work-title {
  margin: 12px 0 0;
  font-size: 22px;
  font-weight: 600;
}

.work-title.sm {
  font-size: 18px;
}

.work-text {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 22px;
  color: var(--ms-muted);
}

.works-side {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Gallery */
.gallery-row {
  display: grid;
  gap: 16px;
  margin-top: 32px;
}

@media (min-width: 768px) {
  .gallery-row.two {
    grid-template-columns: 1fr 1fr;
  }
  .gallery-row.three {
    grid-template-columns: repeat(3, 1fr);
  }
}

.gallery-item {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--ms-elevated), var(--ms-card), rgba(127, 107, 255, 0.1));
}

.gallery-item.large {
  aspect-ratio: 624 / 280;
}

.gallery-item.small {
  aspect-ratio: 416 / 220;
}

.gallery-label {
  position: absolute;
  left: 16px;
  bottom: 16px;
  padding: 8px 16px;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  font-size: 13px;
}

/* Trust */
.trust-grid {
  display: grid;
  gap: 40px;
}

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

.trust-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  margin-top: 32px;
}

.trust-stats strong {
  display: block;
  font-size: 36px;
  font-weight: 600;
}

.trust-stats span {
  display: block;
  margin-top: 4px;
  max-width: 140px;
  font-size: 13px;
  line-height: 18px;
  color: var(--ms-muted);
}

.trust-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.trust-item {
  display: flex;
  gap: 16px;
  padding: 20px;
  border-radius: 16px;
  border: 1px solid var(--ms-border);
  background: rgba(32, 29, 50, 0.6);
}

.trust-item .num {
  font-size: 16px;
  font-weight: 600;
  color: var(--ms-accent);
}

.trust-item h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
}

.trust-item p {
  margin: 4px 0 0;
  font-size: 14px;
  color: var(--ms-muted);
}

/* Reviews */
.reviews-head {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

@media (min-width: 640px) {
  .reviews-head {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.reviews-rating {
  text-align: right;
}

.reviews-rating strong {
  font-size: 28px;
  font-weight: 600;
}

.reviews-rating span {
  font-size: 13px;
  color: var(--ms-muted);
}

.reviews-grid {
  display: grid;
  gap: 16px;
  margin-top: 32px;
}

@media (min-width: 768px) {
  .reviews-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.review-card {
  padding: 25px;
}

.review-stars {
  color: var(--ms-accent);
}

.review-card p {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 22px;
  color: var(--ms-muted);
}

.review-card strong {
  display: block;
  margin-top: 24px;
  font-size: 15px;
}

.review-card span {
  font-size: 13px;
  color: var(--ms-muted);
}

/* Calculator */
.calculator-card {
  display: grid;
  gap: 32px;
  margin-top: 40px;
  padding: 28px;
}

@media (min-width: 1024px) {
  .calculator-card {
    grid-template-columns: 1.8fr 1fr;
  }
}

.step-label {
  margin: 0;
  font-size: 14px;
  font-weight: 500;
}

.step-label + .chips {
  margin-top: 12px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  height: 40px;
  padding: 0 16px;
  border-radius: 12px;
  border: 1px solid var(--ms-border);
  background: var(--ms-elevated);
  color: var(--ms-muted);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
}

.chip.active {
  border-color: var(--ms-accent);
  background: rgba(127, 107, 255, 0.15);
  color: var(--ms-text);
}

.slider-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 16px;
}

.slider-row input[type="range"] {
  flex: 1;
  accent-color: var(--ms-accent);
}

.slider-value {
  min-width: 70px;
  font-size: 18px;
  font-weight: 600;
}

.calc-step {
  margin-top: 32px;
}

.calc-result {
  padding: 24px;
  border-radius: 16px;
  border: 1px solid var(--ms-border);
  background: var(--ms-elevated);
}

.calc-result-label {
  font-size: 13px;
  color: var(--ms-muted);
}

.calc-price {
  margin: 8px 0 0;
  font-size: 36px;
  font-weight: 600;
  line-height: 42px;
}

.calc-desc {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 20px;
  color: var(--ms-muted);
}

.calc-result .btn {
  margin-top: 24px;
  width: 100%;
}

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

/* Contacts */
.contacts-grid {
  display: grid;
  gap: 40px;
}

@media (min-width: 1024px) {
  .contacts-grid {
    grid-template-columns: 520px 1fr;
  }
}

.contact-dl {
  margin-top: 32px;
}

.contact-dl dt {
  font-size: 12px;
  color: var(--ms-muted);
}

.contact-dl dd {
  margin: 4px 0 24px;
  font-size: 17px;
}

.contact-form {
  padding: 28px;
}

.form-field {
  margin-bottom: 16px;
}

.form-field label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--ms-muted);
}

.form-field input,
.form-field textarea {
  width: 100%;
  padding: 16px;
  border-radius: 12px;
  border: 1px solid var(--ms-border);
  background: var(--ms-elevated);
  color: var(--ms-text);
}

.form-field textarea {
  min-height: 96px;
  resize: vertical;
}

.form-check {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  cursor: pointer;
  font-size: 14px;
  color: var(--ms-muted);
}

.form-check input {
  width: 18px;
  height: 18px;
  accent-color: var(--ms-accent);
}

.form-msg {
  margin-top: 16px;
  font-size: 14px;
}

.form-msg.success {
  color: #4ade80;
}

.form-msg.error {
  color: #f87171;
}

/* Footer */
.site-footer {
  padding: 48px var(--pad) 32px;
  background: var(--ms-footer);
}

.footer-grid {
  display: grid;
  gap: 40px;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1.2fr repeat(4, 1fr);
  }
}

.footer-desc {
  margin-top: 16px;
  max-width: 260px;
  font-size: 14px;
  line-height: 20px;
  color: var(--ms-muted);
}

.footer-col h4 {
  margin: 0;
  font-size: 14px;
  font-weight: 500;
}

.footer-col a {
  display: block;
  margin-top: 12px;
  font-size: 14px;
  color: var(--ms-muted);
}

.footer-col a:hover {
  color: var(--ms-text);
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--ms-border);
  font-size: 13px;
  color: var(--ms-muted);
}

@media (min-width: 640px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}