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

:root {
  --bg: #000;
  --bg2: #0a0a0a;
  --text: #f5f5f7;
  --text2: #86868b;
  --c-sub: #86868b;
  --c-accent: #c4714e;
  --c-muted: #555;
  --accent: #6e56cf;
  --blue: #3b82f6;
  --green: #10b981;
  --amber: #f59e0b;
  --grad1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --grad2: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --grad3: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
  --grad4: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
  --grad5: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --ease: cubic-bezier(.25, .46, .45, .94);
  --mw: 1120px;
  --font: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
}

html {
  scroll-behavior: smooth
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased
}

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

/* Nav */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 48px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(0, 0, 0, .8);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, .05)
}

.nav-logo {
  font-size: 1.125rem;
  font-weight: 700;
  background: var(--grad1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none
}

.nav-links a {
  font-size: .8125rem;
  color: var(--text2);
  transition: color .3s
}

.nav-links a:hover {
  color: var(--text)
}

/* Hero */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 100px 24px 56px;
  position: relative;
  overflow: hidden
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(110, 86, 207, .15) 0%, transparent 70%);
  pointer-events: none
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 100px;
  background: rgba(110, 86, 207, .1);
  border: 1px solid rgba(110, 86, 207, .3);
  font-size: .8125rem;
  color: #a78bfa;
  margin-bottom: 24px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp .8s var(--ease) .2s forwards
}

.hero-title {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 900;
  letter-spacing: -.04em;
  line-height: 1.05;
  margin-bottom: 24px;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp .8s var(--ease) .4s forwards
}

.hero-title .sub {
  display: block;
  font-size: .45em;
  font-weight: 400;
  letter-spacing: 0;
  margin-top: 8px;
  color: var(--text2)
}

.hero-title .grad {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text
}

.hero-sub {
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  font-weight: 300;
  color: var(--text2);
  max-width: 680px;
  margin-bottom: 48px;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp .8s var(--ease) .6s forwards
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp .8s var(--ease) .8s forwards
}

.btn-p {
  padding: 14px 32px;
  border-radius: 980px;
  background: var(--grad1);
  color: #fff;
  font-size: 1rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: transform .3s, box-shadow .3s
}

.btn-p:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 30px rgba(110, 86, 207, .4)
}

.btn-s {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 980px;
  background: transparent;
  color: var(--blue);
  font-size: 1rem;
  font-weight: 500;
  border: 1px solid rgba(59, 130, 246, .4);
  cursor: pointer;
  transition: all .3s;
  text-decoration: none
}

.btn-s:hover {
  background: rgba(59, 130, 246, .1);
  border-color: rgba(59, 130, 246, .8)
}

.scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  animation: fadeUp .8s var(--ease) 1.2s forwards
}

.scroll-hint::after {
  content: '';
  display: block;
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--text2), transparent);
  margin: 0 auto;
  animation: pulse 2s ease-in-out infinite
}

@keyframes pulse {

  0%,
  100% {
    opacity: .3;
    transform: scaleY(.6)
  }

  50% {
    opacity: 1;
    transform: scaleY(1)
  }
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(30px)
  }

  to {
    opacity: 1;
    transform: translateY(0)
  }
}

/* Reveal animations */
.rv {
  opacity: 0;
  transform: translateY(60px);
  transition: opacity .8s var(--ease), transform .8s var(--ease)
}

.rv.on {
  opacity: 1;
  transform: translateY(0)
}

.rv-s {
  opacity: 0;
  transform: scale(.92);
  transition: opacity .8s var(--ease), transform .8s var(--ease)
}

.rv-s.on {
  opacity: 1;
  transform: scale(1)
}

.rv-l {
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity .8s var(--ease), transform .8s var(--ease)
}

.rv-l.on {
  opacity: 1;
  transform: translateX(0)
}

.rv-r {
  opacity: 0;
  transform: translateX(60px);
  transition: opacity .8s var(--ease), transform .8s var(--ease)
}

.rv-r.on {
  opacity: 1;
  transform: translateX(0)
}

.stagger>* {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity .6s var(--ease), transform .6s var(--ease)
}

.stagger.on>*:nth-child(1) {
  transition-delay: 0ms;
  opacity: 1;
  transform: translateY(0)
}

.stagger.on>*:nth-child(2) {
  transition-delay: 100ms;
  opacity: 1;
  transform: translateY(0)
}

.stagger.on>*:nth-child(3) {
  transition-delay: 150ms;
  opacity: 1;
  transform: translateY(0)
}

.stagger.on>*:nth-child(4) {
  transition-delay: 200ms;
  opacity: 1;
  transform: translateY(0)
}

.stagger.on>*:nth-child(5) {
  transition-delay: 250ms;
  opacity: 1;
  transform: translateY(0)
}

.stagger.on>*:nth-child(6) {
  transition-delay: 300ms;
  opacity: 1;
  transform: translateY(0)
}

/* Section common */
.sec {
  padding: 64px 0;
  position: relative
}

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

.sec-hd {
  text-align: center;
  margin-bottom: 40px
}

.sec-ey {
  font-size: .875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--blue);
  margin-bottom: 12px
}

.sec-t {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -.03em;
  line-height: 1.1;
  margin-bottom: 20px
}

.sec-d {
  font-size: 1.125rem;
  font-weight: 300;
  color: var(--text2);
  max-width: 600px;
  margin: 0 auto
}

/* About */
.about {
  background: var(--bg2)
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center
}

.about-vis {
  height: 280px;
  border-radius: 24px;
  overflow: hidden;
  background: linear-gradient(135deg, #1a1a2e, #16213e);
  display: flex;
  align-items: center;
  justify-content: center
}

.wave {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 100px
}

.wave i {
  width: 4px;
  border-radius: 4px;
  background: var(--grad1);
  animation: wv 1.2s ease-in-out infinite
}

.wave i:nth-child(1) {
  height: 40%;
  animation-delay: 0s
}

.wave i:nth-child(2) {
  height: 70%;
  animation-delay: .1s
}

.wave i:nth-child(3) {
  height: 100%;
  animation-delay: .2s
}

.wave i:nth-child(4) {
  height: 60%;
  animation-delay: .3s
}

.wave i:nth-child(5) {
  height: 85%;
  animation-delay: .4s
}

.wave i:nth-child(6) {
  height: 45%;
  animation-delay: .5s
}

.wave i:nth-child(7) {
  height: 95%;
  animation-delay: .6s
}

.wave i:nth-child(8) {
  height: 55%;
  animation-delay: .7s
}

.wave i:nth-child(9) {
  height: 80%;
  animation-delay: .8s
}

.wave i:nth-child(10) {
  height: 35%;
  animation-delay: .9s
}

.wave i:nth-child(11) {
  height: 65%;
  animation-delay: 1s
}

.wave i:nth-child(12) {
  height: 90%;
  animation-delay: 1.1s
}

@keyframes wv {

  0%,
  100% {
    transform: scaleY(.5)
  }

  50% {
    transform: scaleY(1)
  }
}

.about-txt h2,
.about-txt h3 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -.03em;
  line-height: 1.15;
  margin-bottom: 24px
}

.about-txt p {
  font-size: 1.0625rem;
  color: var(--text2);
  line-height: 1.8;
  margin-bottom: 16px
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px
}

.stat-n {
  font-size: 2.5rem;
  font-weight: 900;
  background: var(--grad2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2
}

.stat-l {
  font-size: .8125rem;
  color: var(--text2);
  margin-top: 4px
}

/* Features Grid */
.feat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px
}

.feat-card {
  padding: 48px 32px;
  border-radius: 20px;
  background: rgba(255, 255, 255, .03);
  border: 1px solid rgba(255, 255, 255, .06);
  transition: all .4s var(--ease);
  position: relative;
  overflow: hidden
}

.feat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  opacity: 0;
  transition: opacity .4s
}

.feat-card:nth-child(1)::before {
  background: var(--grad1)
}

.feat-card:nth-child(2)::before {
  background: var(--grad2)
}

.feat-card:nth-child(3)::before {
  background: var(--grad3)
}

.feat-card:nth-child(4)::before {
  background: var(--grad4)
}

.feat-card:nth-child(5)::before {
  background: var(--grad5)
}

.feat-card:nth-child(6)::before {
  background: var(--grad1)
}

.feat-card:hover {
  background: rgba(255, 255, 255, .05);
  border-color: rgba(255, 255, 255, .12);
  transform: translateY(-4px)
}

.feat-card:hover::before {
  opacity: 1
}

.feat-hd {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px
}

.feat-ic {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
  font-weight: 600
}

.feat-card:nth-child(1) .feat-ic {
  background: rgba(102, 126, 234, .15)
}

.feat-card:nth-child(2) .feat-ic {
  background: rgba(79, 172, 254, .15)
}

.feat-card:nth-child(3) .feat-ic {
  background: rgba(67, 233, 123, .15)
}

.feat-card:nth-child(4) .feat-ic {
  background: rgba(250, 112, 154, .15)
}

.feat-card:nth-child(5) .feat-ic {
  background: rgba(240, 147, 251, .15)
}

.feat-card:nth-child(6) .feat-ic {
  background: rgba(102, 126, 234, .15)
}

.feat-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0
}

.feat-card p {
  font-size: .9375rem;
  color: var(--text2);
  line-height: 1.7
}

/* Showcase (large alternating sections) */
.show {
  padding: 64px 0;
  position: relative
}

.show:nth-child(even) {
  background: var(--bg2)
}

.show-in {
  max-width: var(--mw);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center
}

.show-in.rev {
  direction: rtl
}

.show-in.rev>* {
  direction: ltr
}

.show-txt .ey {
  font-size: .8125rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .12em;
  margin-bottom: 12px
}

.show-txt h2 {
  font-size: clamp(1.375rem, 2.8vw, 1.875rem);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.25;
  margin-bottom: 20px
}

.show-txt p {
  font-size: 1.0625rem;
  color: var(--text2);
  line-height: 1.8;
  margin-bottom: 16px
}

.show-list {
  list-style: none;
  margin-top: 24px
}

.show-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  font-size: .9375rem;
  color: var(--text2);
  border-bottom: 1px solid rgba(255, 255, 255, .05)
}

.show-list li:last-child {
  border-bottom: none
}

.show-list .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  margin-top: 8px;
  flex-shrink: 0
}

.show-vis {
  height: 320px;
  border-radius: 24px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative
}

.show-vis.c1 {
  background: linear-gradient(160deg, #0f172a, #1e1b4b 50%, #312e81)
}

.show-vis.c2 {
  background: linear-gradient(160deg, #0f172a, #042f2e 50%, #064e3b)
}

.show-vis.c3 {
  background: linear-gradient(160deg, #0f172a, #1c1917 50%, #44403c)
}

.show-vis.c4 {
  background: linear-gradient(160deg, #0f172a, #172554 50%, #1e3a5f)
}

.show-vis.c5 {
  background: linear-gradient(160deg, #0f172a, #3b0764 50%, #581c87)
}

.show-vis.c6 {
  background: linear-gradient(160deg, #0f172a, #4a1d96 50%, #5b21b6)
}

.show-vis.c7 {
  background: linear-gradient(160deg, #0f172a, #78350f 50%, #92400e)
}

.float-notes {
  position: absolute;
  width: 100%;
  height: 100%
}

.float-notes span {
  position: absolute;
  font-size: 2rem;
  opacity: .3;
  animation: fl 6s ease-in-out infinite
}

.float-notes span:nth-child(1) {
  top: 20%;
  left: 15%;
  animation-delay: 0s
}

.float-notes span:nth-child(2) {
  top: 40%;
  right: 20%;
  animation-delay: 1s
}

.float-notes span:nth-child(3) {
  bottom: 30%;
  left: 25%;
  animation-delay: 2s
}

.float-notes span:nth-child(4) {
  top: 60%;
  right: 30%;
  animation-delay: 3s
}

.float-notes span:nth-child(5) {
  bottom: 15%;
  right: 15%;
  animation-delay: 4s
}

@keyframes fl {

  0%,
  100% {
    transform: translateY(0) rotate(0deg)
  }

  50% {
    transform: translateY(-20px) rotate(5deg)
  }
}

.vis-icon {
  font-size: 5rem;
  opacity: .9;
  margin-bottom: 16px
}

.vis-lbl {
  font-size: 1rem;
  color: rgba(255, 255, 255, .6);
  font-weight: 300
}

/* Users */
.users-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px
}

.u-card {
  text-align: center;
  padding: 40px 20px;
  border-radius: 20px;
  background: rgba(255, 255, 255, .02);
  border: 1px solid rgba(255, 255, 255, .05);
  transition: all .4s var(--ease)
}

.u-card:hover {
  background: rgba(255, 255, 255, .05);
  transform: translateY(-8px);
  border-color: rgba(255, 255, 255, .12)
}

.u-av {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem
}

.u-card:nth-child(1) .u-av {
  background: rgba(102, 126, 234, .15)
}

.u-card:nth-child(2) .u-av {
  background: rgba(16, 185, 129, .15)
}

.u-card:nth-child(3) .u-av {
  background: rgba(245, 158, 11, .15)
}

.u-card:nth-child(4) .u-av {
  background: rgba(79, 172, 254, .15)
}

.u-card:nth-child(5) .u-av {
  background: rgba(236, 72, 153, .15)
}

.u-card h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px
}

.u-card p {
  font-size: .8125rem;
  color: var(--text2);
  line-height: 1.6
}

/* Tech */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px
}

.tech-card {
  padding: 48px;
  border-radius: 20px;
  background: rgba(255, 255, 255, .02);
  border: 1px solid rgba(255, 255, 255, .06);
  transition: all .4s var(--ease)
}

.tech-card:hover {
  background: rgba(255, 255, 255, .04);
  border-color: rgba(255, 255, 255, .1)
}

.tech-card .ic {
  font-size: 2rem;
  margin-bottom: 20px
}

.tech-card h3 {
  font-size: 1.375rem;
  font-weight: 600;
  margin-bottom: 12px
}

.tech-card p {
  font-size: .9375rem;
  color: var(--text2);
  line-height: 1.7
}

/* Big headline */
.big-hl {
  padding: 72px 24px;
  text-align: center;
  position: relative;
  overflow: hidden
}

.big-hl::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(110, 86, 207, .1), transparent 70%);
  pointer-events: none
}

.big-hl h2 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  letter-spacing: -.04em;
  line-height: 1.1;
  max-width: 900px;
  margin: 0 auto
}

.big-hl h2 .grad {
  background: var(--grad1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text
}

/* Timeline / Roadmap */
.roadmap {
  background: var(--bg2)
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: rgba(255, 255, 255, .1);
  transform: translateX(-50%)
}

.tl-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 64px;
  position: relative
}

.tl-item:nth-child(odd) {
  flex-direction: row-reverse;
  text-align: right
}

.tl-item:nth-child(odd) .tl-content {
  padding-right: 48px
}

.tl-item:nth-child(even) .tl-content {
  padding-left: 48px
}

.tl-dot {
  position: absolute;
  left: 50%;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  transform: translateX(-50%);
  box-shadow: 0 0 20px rgba(110, 86, 207, .4)
}

.tl-content {
  width: 50%
}

.tl-content h4 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 8px
}

.tl-content p {
  font-size: .9375rem;
  color: var(--text2);
  line-height: 1.7
}

.tl-phase {
  font-size: .75rem;
  color: var(--accent);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 4px
}

/* Footer */
.footer {
  padding: 80px 24px 40px;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, .05)
}

.footer-logo {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--grad1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px
}

.footer p {
  color: var(--text2);
  font-size: .875rem;
  margin-bottom: 8px
}

/* ========================================
   Responsive — Tablet landscape (≤1200px)
   ======================================== */
@media(max-width:1200px) {
  .sec-in {
    padding: 0 32px
  }

  .show-in {
    gap: 60px
  }

  .feat-grid {
    gap: 20px
  }

  .feat-card {
    padding: 40px 28px
  }

  .tech-card {
    padding: 40px
  }

  .users-grid {
    gap: 16px
  }
}

/* ========================================
   Responsive — Tablet portrait (≤1024px)
   ======================================== */
@media(max-width:1024px) {

  .about-grid,
  .show-in {
    grid-template-columns: 1fr;
    gap: 40px
  }

  .show-in.rev {
    direction: ltr
  }

  .feat-grid {
    grid-template-columns: repeat(2, 1fr)
  }

  .users-grid {
    grid-template-columns: repeat(3, 1fr)
  }

  .tech-grid {
    grid-template-columns: 1fr
  }

  .show-vis {
    height: 280px
  }

  .about-vis {
    height: 240px
  }

  .nav {
    padding: 0 32px
  }

  .nav-links {
    gap: 24px
  }

  .big-hl {
    padding: 64px 24px
  }
}

/* ========================================
   Responsive — Large phone / Small tablet (≤768px)
   ======================================== */
@media(max-width:768px) {
  .nav {
    padding: 0 16px;
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right))
  }

  .nav-links {
    display: none
  }

  .feat-grid {
    grid-template-columns: 1fr
  }

  .users-grid {
    grid-template-columns: repeat(2, 1fr)
  }

  .stats {
    grid-template-columns: repeat(2, 1fr)
  }

  .sec {
    padding: 48px 0
  }

  .sec-hd {
    margin-bottom: 32px
  }

  .sec-in {
    padding: 0 20px
  }

  .show {
    padding: 48px 0
  }

  .show-in {
    gap: 32px;
    padding: 0 20px
  }

  .show-vis {
    height: 240px;
    border-radius: 16px
  }

  .about-vis {
    height: 200px;
    border-radius: 16px
  }

  .about-grid {
    gap: 32px
  }

  .feat-card {
    padding: 32px 24px
  }

  .tech-card {
    padding: 32px 24px
  }

  .big-hl {
    padding: 50px 20px
  }

  .big-hl h2 {
    font-size: clamp(2rem, 5vw, 3.5rem)
  }

  .timeline::before {
    left: 20px
  }

  .tl-item,
  .tl-item:nth-child(odd) {
    flex-direction: row;
    text-align: left
  }

  .tl-item:nth-child(odd) .tl-content,
  .tl-item:nth-child(even) .tl-content {
    padding-left: 40px;
    padding-right: 0;
    width: 100%
  }

  .tl-dot {
    left: 20px
  }

  .tl-item {
    margin-bottom: 48px
  }

  .hero {
    padding: 80px 20px 48px;
    min-height: 0
  }

  .hero-title {
    font-size: clamp(2.25rem, 7vw, 4rem)
  }

  .hero-sub {
    font-size: 1.0625rem;
    margin-bottom: 36px
  }

  .hero-cta {
    gap: 12px
  }

  .btn-p,
  .btn-s {
    padding: 12px 28px;
    font-size: .9375rem
  }

  .scroll-hint {
    bottom: 24px
  }

  .show-txt h2 {
    font-size: clamp(1.25rem, 3.5vw, 1.625rem)
  }

  .about-txt h2,
  .about-txt h3 {
    font-size: clamp(1.5rem, 5vw, 2.25rem)
  }

  .show-txt p {
    font-size: 1rem
  }

  .show-list li {
    font-size: .875rem;
    padding: 10px 0
  }

  .vis-icon {
    font-size: 3.5rem
  }

  .vis-lbl {
    font-size: .875rem
  }

  .footer {
    padding: 60px 20px 30px;
    padding-bottom: max(30px, env(safe-area-inset-bottom))
  }
}

/* ========================================
   Responsive — Phone (≤480px)
   ======================================== */
@media(max-width:480px) {
  .users-grid {
    grid-template-columns: 1fr
  }

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

  .stat-n {
    font-size: 2rem
  }

  .sec {
    padding: 48px 0
  }

  .sec-hd {
    margin-bottom: 28px
  }

  .show {
    padding: 48px 0
  }

  .show-in {
    gap: 24px;
    padding: 0 16px
  }

  .show-vis {
    height: 260px
  }

  .about-vis {
    height: 220px
  }

  .about-txt h2,
  .about-txt h3 {
    font-size: clamp(1.5rem, 5vw, 2.25rem)
  }

  .about-txt p {
    font-size: 1rem
  }

  .feat-card {
    padding: 28px 20px
  }

  .feat-ic {
    width: 40px;
    height: 40px;
    font-size: .9375rem
  }

  .feat-card h3 {
    font-size: 1.125rem
  }

  .feat-card p {
    font-size: .875rem
  }

  .tech-card {
    padding: 28px 20px
  }

  .tech-card .ic {
    font-size: 1.5rem;
    margin-bottom: 16px
  }

  .tech-card h3 {
    font-size: 1.25rem
  }

  .tech-card p {
    font-size: .875rem
  }

  .u-card {
    padding: 28px 16px
  }

  .u-av {
    width: 56px;
    height: 56px;
    font-size: 1.5rem;
    margin-bottom: 12px
  }

  .u-card h4 {
    font-size: .9375rem
  }

  .hero {
    padding: 80px 16px 48px
  }

  .hero-badge {
    font-size: .75rem;
    padding: 5px 12px
  }

  .hero-title {
    font-size: clamp(2rem, 9vw, 3rem);
    margin-bottom: 16px
  }

  .hero-sub {
    font-size: 1rem;
    margin-bottom: 28px
  }

  .btn-p,
  .btn-s {
    padding: 12px 24px;
    font-size: .875rem;
    width: 100%
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 300px
  }

  .big-hl {
    padding: 80px 16px
  }

  .big-hl h2 {
    font-size: clamp(1.75rem, 6vw, 2.5rem)
  }

  .show-txt .ey {
    font-size: .75rem
  }

  .show-txt h2 {
    font-size: clamp(1.25rem, 4vw, 1.5rem)
  }

  .about-txt h2,
  .about-txt h3 {
    font-size: clamp(1.375rem, 5vw, 1.875rem)
  }

  .show-list .dot {
    width: 5px;
    height: 5px;
    margin-top: 7px
  }

  .tl-content h4 {
    font-size: 1rem
  }

  .tl-content p {
    font-size: .875rem
  }

  .tl-phase {
    font-size: .6875rem
  }

  .nav {
    height: 48px
  }

  .nav-logo {
    font-size: 1rem
  }

  .footer-logo {
    font-size: 1.25rem
  }

  .wave {
    height: 120px
  }

  .wave i {
    width: 3px
  }
}

/* ========================================
   Responsive — Very small phone (≤360px)
   ======================================== */
@media(max-width:360px) {
  .hero-title {
    font-size: 1.75rem
  }

  .hero-sub {
    font-size: .9375rem
  }

  .show-vis {
    height: 200px
  }

  .about-vis {
    height: 180px
  }

  .sec-t {
    font-size: 1.5rem
  }

  .sec-d {
    font-size: 1rem
  }

  .show-txt h2 {
    font-size: 1.125rem
  }

  .show-txt p {
    font-size: .9375rem
  }

  .big-hl h2 {
    font-size: 1.5rem
  }
}

/* ========================================
   Touch & Mobile UX enhancements
   ======================================== */
@media(hover:none) and (pointer:coarse) {

  .feat-card:hover,
  .tech-card:hover,
  .u-card:hover {
    transform: none;
    background: rgba(255, 255, 255, .03);
    border-color: rgba(255, 255, 255, .06)
  }

  .feat-card:active,
  .tech-card:active,
  .u-card:active {
    transform: scale(.97);
    background: rgba(255, 255, 255, .05)
  }

  .btn-p:hover {
    transform: none;
    box-shadow: none
  }

  .btn-p:active {
    transform: scale(.96)
  }

  .btn-s:hover {
    background: transparent;
    border-color: rgba(59, 130, 246, .4)
  }

  .btn-s:active {
    background: rgba(59, 130, 246, .1)
  }
}

/* Safe area insets for notched devices */
@supports(padding:env(safe-area-inset-top)) {
  .nav {
    padding-top: env(safe-area-inset-top)
  }

  .hero {
    padding-top: calc(88px + env(safe-area-inset-top))
  }

  .footer {
    padding-bottom: calc(40px + env(safe-area-inset-bottom))
  }
}

/* Reduce motion for accessibility & battery saving */
@media(prefers-reduced-motion:reduce) {

  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important
  }

  .rv,
  .rv-s,
  .rv-l,
  .rv-r {
    opacity: 1;
    transform: none
  }

  .stagger>* {
    opacity: 1;
    transform: none
  }

  html {
    scroll-behavior: auto
  }
}

/* Landscape phone */
@media(max-height:500px) and (orientation:landscape) {
  .hero {
    min-height: auto;
    padding: 60px 24px 40px
  }

  .hero-title {
    font-size: clamp(1.75rem, 5vw, 3rem)
  }

  .hero-sub {
    margin-bottom: 24px
  }

  .scroll-hint {
    display: none
  }

  .show {
    padding: 48px 0
  }

  .sec {
    padding: 48px 0
  }

  .big-hl {
    padding: 48px 24px
  }
}