/* --- CSS Variables & Reset --- */
:root {
  --primary-color: rgb(147, 190, 230);
  --primary-hover: rgb(117, 160, 200);
  --accent-mint: rgb(147, 230, 207);
  --accent-yellow: rgb(255, 206, 133);
  --accent-red: rgb(230, 147, 147);
  --text-dark: #1f2937;
  --text-gray: #6b7280;
  --bg-light: #f3f4f6;
  --white: #ffffff;
  --max-width: 1200px;
  --radius-s: 12px;
  --radius-m: 24px;
  --shadow:
    0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

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

body {
  font-family:
    system-ui,
    -apple-system,
    "Segoe UI",
    sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
  background-color: var(--white);
  overflow-x: hidden;
  width: 100%;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

a {
  text-decoration: none;
  color: inherit;
  transition: 0.3s;
}

ul {
  list-style: none;
}

/* --- Preloader --- */
.preloader {
  position: fixed;
  inset: 0;
  background-color: var(--white);
  z-index: 10001;
  display: flex;
  justify-content: center;
  align-items: center;
}

.preloader-logo {
  width: auto;
  height: 10vh;
}

.preloader-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* --- Layout Utilities --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 4px;
}

.highlight {
  color: var(--primary-color);
}

.btn {
  display: inline-block;
  padding: 12px 14px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s;
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--white);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
}

.btn-outline {
  /* Glassmorphism Active State (Reference) */
  background: rgba(231, 231, 231, 0.4);
  border: none;
  box-shadow: inset 0 0 10px rgba(255, 255, 255, 0.5);
  padding: 10px 16px;
  border-radius: 50px;
  transition: all 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.btn-outline:active {
  transform: scale(0.92);
  background: rgba(231, 231, 231, 0.8);
  box-shadow: inset 0 0 15px rgba(255, 255, 255, 0.8);
}

/* --- Header --- */
header {
  position: fixed;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: fit-content;
  max-width: var(--max-width);
  /* Glassmorphism Container (Reference) */
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 50px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
  padding: 4px;
  z-index: 1000;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 52px;
  gap: 12px;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 30px;
  position: relative;
  padding: 0 6px;
}

.logo__img {
  width: auto;
  height: 40px;
  margin-bottom: 4px;
  object-fit: contain;
}

.mobile-menu-toggle {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.06);
  color: var(--text-dark);
  padding: 0;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.mobile-menu-toggle span {
  position: absolute;
  width: 18px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.22s ease, opacity 0.18s ease;
}

.mobile-menu-toggle span:nth-child(1) {
  transform: translateY(-6px);
}

.mobile-menu-toggle span:nth-child(3) {
  transform: translateY(6px);
}

.mobile-menu-toggle.is-open span:nth-child(1) {
  transform: translateY(0) rotate(45deg);
}

.mobile-menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.is-open span:nth-child(3) {
  transform: translateY(0) rotate(-45deg);
}

.nav-menu {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-indicator {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 26px;
  box-shadow:
    0 2px 8px rgba(0, 0, 0, 0.1),
    inset 0 0 10px rgba(117, 117, 117, 0.1),
    inset 0 0 4px rgba(255, 255, 255, 0.1);
  z-index: 0;
  opacity: 0;
  pointer-events: none;
  transform-origin: center;
}

.nav-link {
  position: relative;
  text-wrap: nowrap;
  padding: 10px;
  z-index: 1;
  font-weight: 500;
  color: var(--text-dark);
  padding: 10px 16px;
  border-radius: 30px;
  transition: all 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.nav-link:active {
  transform: scale(0.92);
}

/* --- Full Screen Sections --- */
main {
  position: relative;
}

main section {
  min-height: 100dvh;
  padding: 80px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background-color: transparent;
  overflow: hidden;
}

/* --- Hero Section --- */
.hero {
  text-align: center;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: -50px;
  background-color: #ffffff;
  background-image: url("/landing/assets/images/hero-bg.svg");
  background-size: 100% auto;
  background-repeat: repeat-y;
  z-index: 0;
  transform: translate(var(--bg-x, 0px), var(--bg-y, 0px));
}

.hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40%;
  background: linear-gradient(to top, var(--white), transparent);
  z-index: 1;
}

.phones {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.hero__bg {
  position: absolute;
  bottom: -29%;
  left: 64%;
  transform: translateX(-50%) rotate(11deg);
  width: min(46vw, 420px);
  z-index: 2;
  pointer-events: none;
}

.hero__bg-1 {
  position: absolute;
  bottom: -33%;
  left: 36%;
  transform: translateX(-50%) rotate(-12deg);
  width: min(46vw, 420px);
  z-index: 2;
  pointer-events: none;
}

.hero__bg img,
.hero__bg-1 img {
  width: 100%;
  height: auto;
  display: block;
}

.hero .container {
  position: relative;
  z-index: 3;
  width: min(760px, 100%);
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow:
    0 30px 70px -42px rgba(15, 23, 42, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 44px 48px;
  border-radius: 64px;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.2;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-gray);
  margin-bottom: 32px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Features Section --- */
.features {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  gap: 32px;
  position: relative;
  z-index: 10;
}

.section-title {
  text-align: center;
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.features-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
  padding: 0 20px;
  margin-bottom: 40px;
}

.section-subtitle {
  color: var(--text-gray);
  font-size: 1.05rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  position: relative;
}

.features-track {
  display: contents;
}

/* --- Features Section (Modern Overrides) --- */
.feature-card {
  width: 100%;
  max-width: 300px;
  aspect-ratio: 1 / 1;
  height: auto;
  border-radius: 28px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  cursor: pointer;
  transition: box-shadow 0.2s ease-in-out;
}

.feature-card.is-expanded {
  overflow: hidden;
}

.feature-card:not(.is-expanded):hover {
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.1);
}

.card-arrow {
  position: absolute;
  top: 24px;
  right: 24px;
  color: var(--white);
  opacity: 0.7;
  transition:
    opacity 0.3s,
    transform 0.3s;
}

.feature-card:not(.is-expanded):hover .card-arrow {
  opacity: 1;
  transform: translate(2px, -2px);
}

.feature-card.is-expanded .card-arrow {
  display: none;
}

.feature-card.is-expanded .drag-zone {
  min-height: 64px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  touch-action: pan-y;
}

.feature-card:nth-child(1) {
  background-color: var(--accent-mint);
}

.feature-card:nth-child(2) {
  background-color: var(--accent-yellow);
}

.feature-card:nth-child(3) {
  background-color: var(--accent-red);
}

.feature-card:nth-child(4) {
  background-color: var(--primary-hover);
}

.card-content {
  position: relative;
  z-index: 2;
  padding: 0;
}

.icon-box {
  width: 72px;
  height: 72px;
  background: rgba(255, 255, 255, 0.2);
  color: var(--white);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  transition:
    opacity 0.25s ease,
    transform 0.25s ease;
}

.icon-box svg {
  width: 34px;
  height: 34px;
}

.feature-card h3 {
  font-size: 1.8rem;
  margin-bottom: 14px;
  color: var(--white);
}

.feature-card p {
  color: var(--white);
  font-size: 1.05rem;
  margin-bottom: 18px;
  display: none;
}

.card-points {
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: rgba(15, 23, 42, 0.7);
  font-size: 0.95rem;
}

.card-points li {
  padding-left: 18px;
  position: relative;
}

.card-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.5);
}

.card-close-btn {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  opacity: 0;
  transition: background 0.2s;
  z-index: 10;
}

.card-screenshot-media {
  display: block;
  width: min(76%, 260px);
  height: auto;
  max-width: 100%;
  margin: 0 auto;
  object-fit: cover;
  object-position: top center;
  pointer-events: none;
}

.swipe-indicator {
  width: 80px;
  height: 5px;
  background-color: rgba(255, 255, 255, 0.4);
  border-radius: 10px;
  margin: 0 auto 30px;
  flex-shrink: 0;
  animation: swipe-bounce 2s infinite ease-in-out;
}

@keyframes swipe-bounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(6px);
  }
}

/* --- How It Works --- */
.steps-container {
  display: flex;
  justify-content: space-between;
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  padding-top: 40px;
}

/* Background Line (Gray) */
.steps-container::before {
  content: "";
  position: absolute;
  top: 80px; /* Center of circle (80px/2 + 40px padding) */
  left: 40px; /* Center of first circle */
  right: 40px; /* Center of last circle */
  height: 4px;
  background: #e2e8f0;
  z-index: 0;
  border-radius: 4px;
}

/* Animated Line (Colored) */
.steps-line-progress {
  position: absolute;
  top: 80px;
  left: 40px;
  height: 4px;
  background: var(--accent-mint);
  z-index: 0;
  width: 0; /* Animated via JS */
  max-width: calc(100% - 80px);
  border-radius: 4px;
}

.step {
  flex: 1;
  text-align: center;
  position: relative;
  z-index: 1;
  padding: 0 15px;
}

.step-number {
  width: 80px;
  height: 80px;
  background-color: var(--white);
  color: var(--text-dark);
  border: 4px solid var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 800;
  margin: 0 auto 30px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.step-content h3 {
  font-size: 1.5rem;
  margin-bottom: 12px;
  font-weight: 700;
}

.step-content p {
  color: var(--text-gray);
  line-height: 1.6;
}

/* Step Colors */
.step:nth-of-type(1) .step-number {
  border-color: var(--accent-mint);
  color: var(--accent-mint);
}

.step:nth-of-type(2) .step-number {
  border-color: var(--accent-yellow);
  color: var(--accent-yellow);
}

.step:nth-of-type(3) .step-number {
  border-color: var(--accent-red);
  color: var(--accent-red);
}

/* --- Testimonials --- */
.testimonials .section-subtitle {
  text-align: center;
  margin-bottom: 32px;
}

.app-ratings {
  max-width: fit-content;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(100px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.app-rating-card {
  display: block;
  background: var(--white);
  border-radius: 16px;
  border: 1px solid rgba(17, 24, 39, 0.08);
  padding: 18px;
  color: inherit;
  text-decoration: none;
  transition:
    transform 0.2s ease,
    border-color 0.2s ease;
}

.app-rating-card:hover {
  transform: translateY(-2px);
  border-color: rgba(17, 24, 39, 0.14);
}

.app-rating-card:focus-visible {
  outline: 2px solid rgba(15, 23, 42, 0.35);
  outline-offset: 2px;
}

.app-rating-store {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-gray);
  font-size: 0.86rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.store-icon {
  width: 30px;
  height: 30px;
  border-radius: 10px;
  padding: 4px;
  background: #ffffff;
  border: 1px solid rgba(17, 24, 39, 0.1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.store-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.store-icon-appstore img {
  transform: scale(0.95);
}

.store-icon-google img {
  transform: scale(0.92);
}

.store-icon-rustore img {
  transform: scale(0.94);
}

.app-rating-main {
  display: flex;
  align-items: center;
  gap: 10px;
}

.app-rating-value {
  font-size: 1.9rem;
  font-weight: 700;
  color: #111827;
  line-height: 1;
}

.app-rating-stars {
  letter-spacing: 1px;
  color: #f59e0b;
  font-size: 0.95rem;
}

.app-rating-meta {
  margin-top: 6px;
  color: var(--text-gray);
  font-size: 0.78rem;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  align-items: stretch;
}

.testimonial-card {
  min-width: 0;
  position: relative;
  background: var(--white);
  border-radius: 20px;
  padding: 28px;
  color: inherit;
  text-decoration: none;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease;
  border: 1px solid rgba(17, 24, 39, 0.04);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.02), 0 2px 4px -1px rgba(0, 0, 0, 0.02);
  overflow: hidden;
}

/* Decorative Quote Mark */
.testimonial-card::before {
  content: "“";
  position: absolute;
  top: -10px;
  right: 24px;
  font-size: 6rem;
  line-height: 1;
  font-family: serif;
  color: var(--primary-color);
  opacity: 0.1;
  pointer-events: none;
}

.testimonial-card:hover {
  transform: translateY(-4px);
  border-color: rgba(147, 190, 230, 0.4);
  box-shadow: 0 12px 24px -8px rgba(0, 0, 0, 0.08);
}

.testimonial-card:focus-visible {
  outline: 2px solid rgba(15, 23, 42, 0.35);
  outline-offset: 2px;
}

.testimonial-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.testimonial-head h3 {
  font-size: 1.05rem;
}

.testimonial-head span {
  color: var(--text-gray);
  font-size: 0.85rem;
}

.avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #0f172a;
  font-weight: 700;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.avatar-mint {
  background: var(--accent-mint);
  color: #0f392b;
}

.avatar-yellow {
  background: var(--accent-yellow);
  color: #422a03;
}

.avatar-red {
  background: var(--accent-red);
  color: #450a0a;
}

.testimonial-card p {
  color: #111827;
  font-size: 0.98rem;
  line-height: 1.6;
  position: relative;
  z-index: 1;
}

/* --- Future --- */
.future {
  background: var(--white);
}

.future .section-subtitle {
  text-align: center;
  max-width: 52ch;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 32px;
}

.future-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.future-card {
  position: relative;
  min-width: 0;
  border-radius: 20px;
  padding: 28px;
  border: none;
  box-shadow: none;
  overflow: hidden;
  transition:
    transform 0.2s ease;
}

.future-card:nth-child(1) {
  background: var(--accent-mint);
}

.future-card:nth-child(2) {
  background: var(--accent-yellow);
}

.future-card:nth-child(3) {
  background: var(--accent-red);
}

.future-card:hover {
  transform: translateY(-4px);
}

.future-card:focus,
.future-card:focus-visible {
  outline: none;
}

.future-card h3 {
  margin-bottom: 12px;
  font-size: 2rem;
  line-height: 1.05;
  font-weight: 700;
  color: #111827;
  letter-spacing: -0.02em;
}

.future-card p {
  color: rgba(17, 24, 39, 0.9);
  font-size: 1.05rem;
  line-height: 1.35;
}

/* --- About Section --- */
.about-content {
  width: min(100%, 940px);
  max-width: 940px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 580px) auto;
  justify-content: center;
  gap: 28px 42px;
}

.about-text-block {
  max-width: none;
}

.about-text-block:nth-child(1) {
  grid-column: 1;
  grid-row: 1;
}

.about-text-block:nth-child(2) {
  grid-column: 1;
  grid-row: 2;
}

.about-text-block:nth-child(3) {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: start;
  justify-self: start;
  width: fit-content;
  max-width: 100%;
}

.about-heading {
  margin: 0 0 10px;
  font-size: clamp(1.5rem, 2.6vw, 2.3rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.about-block-text {
  margin: 0;
  color: var(--text-gray);
  font-size: 1.05rem;
  line-height: 1.7;
}

.about-block-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.about-block-links a {
  color: var(--text-dark);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 41, 55, 0.25);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.about-block-links a:hover {
  color: var(--primary-hover);
  border-color: rgba(117, 160, 200, 0.55);
}

/* --- Footer --- */
footer {
  color: var(--text-dark);
  padding: 40px 0;
  margin-top: auto;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-links a {
  margin-left: 20px;
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--accent-mint);
}

/* --- Media Queries --- */
@media (hover: hover) {
  .btn-outline:hover {
    background: rgba(231, 231, 231, 0.6);
  }

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

  .about-task-window:hover {
    transform: translateY(-1px);
    background: #f7f7f7;
    box-shadow: 0 14px 28px -20px rgba(15, 23, 42, 0.75);
  }

  .about-task-close:hover {
    color: #111827;
  }

  .about-task-expanded-links a:hover {
    transform: translateY(-1px);
    background: #eceff3;
    color: #111827;
  }

  .about-task-text a:hover {
    color: #1f3b35;
    transform: translateX(2px);
  }

  .about-task-text a:hover svg {
    transform: translate(2px, -2px);
    opacity: 1;
  }

}

@media (max-width: 900px) {
  .container {
    padding: 0 20px;
  }

  .hero .container {
    border-radius: 24px;
    padding: 22px;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .phones::before {
    bottom: 6%;
    width: 115vw;
    height: 50vw;
    opacity: 1;
  }

  .hero__bg,
  .hero__bg-1 {
    width: min(62vw, 280px);
  }

  .hero__bg {
    left: 68%;
    bottom: -18%;
    transform: translateX(-50%) rotate(8deg);
  }

  .hero__bg-1 {
    left: 32%;
    bottom: -20%;
    transform: translateX(-50%) rotate(-8deg);
    opacity: 1;
  }

  .about-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-image {
    order: -1;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .card-close-btn {
    display: none;
  }

  /* About */
  .about {
    padding: 60px 0;
  }

  .about-shell {
    grid-template-columns: 1fr;
    grid-template-areas:
      "head"
      "story"
      "mosaic"
      "roadmap";
    gap: 12px;
    padding: 20px;
    border-radius: 24px;
  }

  .about-shell::before {
    inset: 10px;
    border-radius: 16px;
  }

  .about .section-title {
    text-align: left;
    font-size: 1.9rem;
  }

  .about-tag {
    font-size: 0.72rem;
    margin-bottom: 10px;
  }

  .about-intro {
    font-size: 0.95rem;
  }

  .about-story {
    padding: 16px;
  }

  .about-story p {
    font-size: 0.95rem;
  }

  .about-mosaic {
    grid-template-columns: 1fr;
  }

  .about-tile {
    min-height: auto;
    padding: 16px;
  }

  .about-roadmap {
    gap: 10px;
  }

  .roadmap-item {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 8px;
  }

  .roadmap-item h3 {
    font-size: 1.15rem;
  }

  .roadmap-item p {
    font-size: 0.84rem;
  }

  .about-ornament {
    width: 118px;
    height: 66px;
    right: 12px;
    top: 12px;
  }

  .ornament-line {
    margin-bottom: 9px;
  }

  .about-shell::after {
    display: none;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .about-text-block:nth-child(1),
  .about-text-block:nth-child(2),
  .about-text-block:nth-child(3) {
    grid-column: auto;
    grid-row: auto;
  }

  .about-heading {
    font-size: clamp(1.35rem, 4.4vw, 1.9rem);
    margin-bottom: 8px;
  }

  .about-block-text {
    font-size: 1rem;
    line-height: 1.6;
  }

  .about-block-links {
    gap: 8px;
  }

  .about-block-links a {
    font-size: 0.95rem;
  }

  /* Features */
  .features {
    padding: 60px 0;
    border-radius: 40px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    align-items: center;
    justify-items: center;
  }

  .feature-card {
    width: 100%;
    max-width: 360px;
    min-width: 280px;
    min-height: auto;
    aspect-ratio: 1 / 1;
    padding: 24px 24px 0 24px;
  }

  .feature-card h3 {
    font-size: 1.5rem;
  }

  .feature-card p {
    font-size: 1rem;
  }

  .feature-card.is-expanded .icon-box {
    display: none;
  }

  .steps-container {
    flex-direction: column;
    align-items: center;
  }

  /* --- Mobile Steps (Vertical Timeline) --- */
  .steps-container {
    flex-direction: column;
    gap: 40px;
    padding-left: 0;
    padding-top: 0;
    align-items: flex-start;
  }

  .steps-container::before {
    top: 30px;
    left: 30px; /* Center of 60px circle */
    width: 4px;
    height: calc(100% - 60px);
    right: auto;
  }

  .steps-line-progress {
    top: 0;
    left: 30px;
    width: 4px;
    height: 0;
    max-width: none;
  }

  .step {
    display: flex;
    text-align: left;
    align-items: flex-start;
    gap: 24px;
    padding: 0;
    width: 100%;
  }

  .step-number {
    margin: 0;
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
    align-self: center;
  }

  .how-it-works,
  .testimonials,
  .future {
    padding: 60px 0;
  }

  .testimonials .section-subtitle {
    margin-bottom: 20px;
    max-width: 52ch;
    margin-left: auto;
    margin-right: auto;
    font-size: 0.95rem;
    line-height: 1.5;
  }

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

  .testimonial-card {
    border-radius: 18px;
    padding: 20px;
  }

  .testimonial-head {
    gap: 10px;
    margin-bottom: 12px;
  }

  .testimonial-head h3 {
    font-size: 1rem;
  }

  .testimonial-head span {
    font-size: 0.8rem;
  }

  .avatar {
    width: 40px;
    height: 40px;
  }

  .testimonial-card p {
    font-size: 0.92rem;
    line-height: 1.5;
    margin-top: auto;
  }

  .app-ratings {
    display: grid;
    grid-template-columns: 1fr;
    width: 100%;
    max-width: 100%;
    gap: 12px;
    margin: 24px auto 0;
    padding: 0;
    overflow: visible;
  }

  .app-rating-card {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
    width: 100%;
    min-width: 0;
    padding: 16px;
  }

  .app-rating-store {
    font-size: 0.8rem;
  }

  .app-rating-value {
    font-size: 1.65rem;
  }

  .app-rating-stars {
    font-size: 0.85rem;
  }

  .future .section-subtitle {
    margin-bottom: 20px;
    max-width: 52ch;
    margin-left: auto;
    margin-right: auto;
    font-size: 0.95rem;
    line-height: 1.5;
  }

  .future-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .future-card {
    border-radius: 18px;
    padding: 12px 12px 18px;
  }

  .future-card-media {
    border-radius: 12px;
    margin-bottom: 14px;
  }

  .future-card::after {
    top: 14px;
    left: 14px;
  }

  .future-card h3 {
    font-size: 1.6rem;
    margin-bottom: 10px;
    line-height: 1.08;
  }

  .future-card p {
    font-size: 1rem;
    line-height: 1.35;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }

  .footer-links a {
    margin: 0 10px;
  }

  /* --- Mobile Header --- */
  header {
    left: 50%;
    transform: translateX(-50%);
    width: auto;
    max-width: calc(100% - 40px);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
    overflow: hidden;
  }

  nav {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    column-gap: 10px;
    row-gap: 0;
    height: auto;
    padding: 4px 8px;
  }

  .nav-menu {
    display: flex;
    flex-direction: column;
    gap: 8px;
    grid-column: 1 / -1;
    width: 100%;
  }

  .nav-indicator {
    display: none;
  }

  .logo {
    grid-column: 1;
    margin-right: 0;
    min-width: 0;
    padding-left: 0;
    cursor: default;
    z-index: 20;
  }

  .mobile-menu-toggle {
    display: inline-flex;
    grid-column: 2;
    position: relative;
    z-index: 21;
  }

  .nav-link {
    display: none;
    width: fit-content;
    align-self: center;
    text-align: inherit;
    padding: 10px 16px;
    border-top: none;
  }

  .btn-outline {
    display: none;
    grid-column: 1 / -1;
    width: fit-content;
    align-self: center;
    justify-self: center;
    text-align: inherit;
    margin: 10px auto 15px;
  }
}

@media (max-width: 600px) {
  .testimonials,
  .future {
    padding: 48px 0;
  }

  .testimonials .section-subtitle {
    margin-bottom: 16px;
    font-size: 0.9rem;
  }

  .testimonials-grid {
    gap: 10px;
  }

  .testimonial-card {
    border-radius: 16px;
    padding: 16px;
  }

  .testimonial-head {
    gap: 8px;
    margin-bottom: 10px;
  }

  .testimonial-head h3 {
    font-size: 0.96rem;
    line-height: 1.2;
  }

  .testimonial-head span {
    font-size: 0.76rem;
    line-height: 1.3;
  }

  .avatar {
    width: 36px;
    height: 36px;
    font-size: 0.9rem;
  }

  .testimonial-card p {
    font-size: 0.88rem;
    line-height: 1.45;
  }

  .app-ratings {
    width: 100%;
    max-width: 100%;
    gap: 10px;
    margin-top: 14px;
  }

  .app-rating-card {
    border-radius: 14px;
    padding: 14px;
  }

  .app-rating-store {
    font-size: 0.76rem;
    margin-bottom: 4px;
  }

  .store-icon {
    width: 26px;
    height: 26px;
    border-radius: 8px;
    padding: 3px;
  }

  .app-rating-main {
    gap: 8px;
  }

  .about-content {
    gap: 18px;
  }

  .about-heading {
    font-size: 1.3rem;
  }

  .about-block-text {
    font-size: 0.95rem;
    line-height: 1.55;
  }

  .about-block-links a {
    font-size: 0.9rem;
  }

  .future .section-subtitle {
    margin-bottom: 16px;
    font-size: 0.9rem;
  }

  .future-grid {
    gap: 10px;
  }

  .future-card {
    border-radius: 16px;
    padding: 10px 10px 16px;
  }

  .future-card-media {
    border-radius: 11px;
    margin-bottom: 12px;
  }

  .future-card::after {
    top: 12px;
    left: 12px;
  }

  .future-media-tag {
    font-size: 0.66rem;
    padding: 4px 7px;
  }

  .future-card h3 {
    font-size: 1.36rem;
    line-height: 1.1;
  }

  .future-card p {
    font-size: 0.94rem;
    line-height: 1.35;
  }

  .app-rating-value {
    font-size: 1.45rem;
  }

  .app-rating-stars {
    font-size: 0.78rem;
  }
}

@media (max-width: 900px) and (max-height: 500px) and (orientation: landscape) {
  .container {
    padding: 0 14px;
  }

  main section {
    padding: 56px 0 36px;
  }

  header {
    top: 6px;
    max-width: calc(100% - 20px);
    border-radius: 18px;
    max-height: calc(100dvh - 12px);
  }

  nav {
    column-gap: 8px;
    padding: 2px 6px;
  }

  .mobile-menu-toggle {
    width: 38px;
    height: 38px;
    border-radius: 12px;
  }

  .mobile-menu-toggle span {
    width: 16px;
  }

  .mobile-menu-toggle span:nth-child(1) {
    transform: translateY(-5px);
  }

  .mobile-menu-toggle span:nth-child(3) {
    transform: translateY(5px);
  }

  .nav-link {
    padding: 10px 16px;
    font-size: 0.95rem;
  }

  .nav-menu {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 8px;
    row-gap: 6px;
    justify-items: center;
    align-items: center;
  }

  .nav-menu .nav-link {
    width: 100%;
    text-align: center;
    justify-self: stretch;
  }

  .nav-menu .nav-link:last-of-type {
    grid-column: 1 / -1;
    justify-self: center;
    width: fit-content;
  }

  .btn-outline {
    margin: 8px auto 10px;
    padding: 10px 16px;
  }

  .hero .container {
    width: min(540px, 100%);
    border-radius: 18px;
    padding: 14px 18px;
  }

  .hero h1 {
    font-size: clamp(1.1rem, 3.4vw, 1.45rem);
    margin-bottom: 8px;
  }

  .hero p {
    font-size: 0.88rem;
    margin-bottom: 14px;
    max-width: 62ch;
  }

  .hero .btn {
    padding: 10px 12px;
  }

  .phones::before {
    bottom: 2%;
    width: 98vw;
    height: 24vw;
    filter: blur(18px);
    opacity: 1;
  }

  .hero__bg,
  .hero__bg-1 {
    width: min(30vw, 170px);
  }

  .hero__bg {
    left: 65%;
    bottom: -24%;
  }

  .hero__bg-1 {
    left: 35%;
    bottom: -26%;
  }

  .section-title {
    font-size: clamp(1.25rem, 3vw, 1.7rem);
    margin-bottom: 8px;
  }

  .features,
  .about,
  .how-it-works,
  .testimonials {
    padding: 40px 0;
  }

  .features-header {
    margin-bottom: 20px;
  }

  .feature-card {
    width: min(320px, 44vw);
    padding: 16px;
  }

  .feature-card.is-expanded {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    grid-template-rows: auto 1fr;
    column-gap: 12px;
    row-gap: 8px;
    align-items: stretch;
    padding: calc(8px + env(safe-area-inset-top)) 16px calc(16px + env(safe-area-inset-bottom))
      16px !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
  }

  .feature-card.is-expanded .icon-box {
    display: flex;
  }

  .feature-card.is-expanded .drag-zone {
    grid-column: 1 / -1;
    grid-row: 1;
    min-height: 44px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 2px;
  }

  .feature-card.is-expanded .card-content {
    grid-column: 1;
    grid-row: 2;
    min-width: 0;
  }

  .feature-card.is-expanded .swipe-indicator {
    width: 56px;
    margin: 0 auto 12px;
    height: 4px;
  }

  .feature-card.is-expanded h3 {
    font-size: clamp(1.05rem, 2.8vw, 1.25rem);
    margin-bottom: 8px;
  }

  .feature-card.is-expanded p {
    font-size: 0.9rem;
    line-height: 1.45;
    margin-bottom: 10px;
  }

  .feature-card.is-expanded .card-close-btn {
    top: calc(8px + env(safe-area-inset-top));
    right: 12px;
    width: 34px;
    height: 34px;
  }

  .feature-card.is-expanded .card-screenshot-media {
    grid-column: 2;
    grid-row: 2;
    width: 70%;
    margin-top: 0;
    justify-self: stretch;
    align-self: end;
  }
}