/* Khung nổi bật cho tokenomics */
.progress-box {
  background: linear-gradient(
    120deg,
    rgba(0, 255, 195, 0.1) 0%,
    rgba(56, 189, 248, 0.08) 100%
  );
  border: 2.5px solid #00ffc3cc;
  border-radius: 22px;
  box-shadow: 0 6px 32px 0 #00ffc355, 0 2px 12px #38bdf8cc;
  padding: 38px 28px 28px 28px;
  margin: 0 auto 24px auto;
  max-width: 420px;
  transition: box-shadow 0.22s, border-color 0.22s;
  position: relative;
  z-index: 2;
  animation: popIn 1.2s cubic-bezier(0.77, 0, 0.18, 1) 0.2s both;
}
.progress-box:hover {
  box-shadow: 0 12px 48px #00ffc399, 0 8px 32px #38bdf8cc;
  border-color: #38bdf8;
}
.progress-box .progress-list {
  margin-bottom: 18px;
}
.progress-box .progress-img {
  margin-top: 10px;
}
/* Ẩn nút đóng nav trên desktop */
.nav-close {
  display: none;
}
/* ==== NAVBAR & HAMBURGER MOBILE ==== */
@media (max-width: 900px) {
  /* ...existing code... */
  .nav {
    right: 0 !important;
    left: auto !important;
    width: 80vw !important;
    max-width: 320px !important;
    min-width: 220px;
    border-radius: 0 0 0 0;
    box-shadow: -2px 0 24px #000a;
    background: rgba(0, 0, 0, 0.98);
    height: 100vh !important;
    top: 0;
    bottom: 0;
    position: fixed !important;
    display: flex;
    flex-direction: column !important;
    align-items: flex-start !important;
    justify-content: flex-start !important;
    padding: 80px 28px 28px 28px;
    gap: 0;
    transform: translateX(100%);
    transition: transform 0.32s cubic-bezier(0.77, 0, 0.18, 1), opacity 0.2s;
    z-index: 13000;
    visibility: hidden;
    pointer-events: none;
    opacity: 0;
  }
  .nav.open {
    transform: translateX(0);
    visibility: visible;
    pointer-events: auto;
    opacity: 1;
  }
  .nav-close {
    position: absolute;
    top: 18px;
    right: 18px;
    width: 38px;
    height: 38px;
    background: none;
    border: none;
    color: #00ffc3;
    font-size: 2.2rem;
    font-weight: 900;
    z-index: 14001;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.92;
    transition: opacity 0.18s;
  }
  .nav-close:hover {
    opacity: 1;
    color: #38bdf8;
  }
  .nav a {
    display: block;
    width: 100%;
    text-align: left;
    padding: 18px 0 12px 0;
    margin: 0;
    font-size: 1.18rem;
    border-bottom: 1px solid #1b356a33;
    line-height: 1.4;
    color: #e5f2ff;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: color 0.2s, background 0.2s;
    background: transparent;
  }
  .nav a.active,
  .nav a:focus,
  .nav a:hover {
    color: #00ffc3;
    background: rgba(0, 255, 195, 0.07);
    border-bottom: 2.5px solid #00ffc3;
  }
  .nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    z-index: 12000;
    transition: opacity 0.25s;
    opacity: 0;
    pointer-events: none;
  }
  body.nav-mobile-open .nav-overlay {
    display: block;
    opacity: 1;
    pointer-events: auto;
  }
}
@media (max-width: 900px) {
  .nav {
    right: 0 !important;
    left: auto !important;
    width: 80vw !important;
    max-width: 320px !important;
    min-width: 220px;
    border-radius: 0 0 0 0;
    box-shadow: -2px 0 24px #000a;
    background: rgba(0, 0, 0, 0.98);
    height: 100vh !important;
    top: 0;
    bottom: 0;
    position: fixed !important;
    display: flex;
    flex-direction: column !important;
    align-items: flex-start !important;
    justify-content: flex-start !important;
    padding: 80px 28px 28px 28px;
    gap: 0;
    transform: translateX(100%);
    transition: transform 0.32s cubic-bezier(0.77, 0, 0.18, 1), opacity 0.2s;
    z-index: 13000;
    visibility: hidden;
    pointer-events: none;
    opacity: 0;
  }
  .nav.open {
    transform: translateX(0);
    visibility: visible;
    pointer-events: auto;
    opacity: 1;
  }
  .nav-close {
    position: absolute;
    top: 18px;
    right: 18px;
    width: 38px;
    height: 38px;
    background: none;
    border: none;
    color: #00ffc3;
    font-size: 2.2rem;
    font-weight: 900;
    z-index: 14001;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.92;
    transition: opacity 0.18s;
  }
  .nav-close:hover {
    opacity: 1;
    color: #38bdf8;
  }
  .nav a {
    display: block;
    width: 100%;
    text-align: left;
    padding: 18px 0 12px 0;
    margin: 0;
    font-size: 1.18rem;
    border-bottom: 1px solid #1b356a33;
    line-height: 1.4;
    color: #e5f2ff;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: color 0.2s, background 0.2s;
    background: transparent;
  }
  .nav a.active,
  .nav a:focus,
  .nav a:hover {
    color: #00ffc3;
    background: rgba(0, 255, 195, 0.07);
    border-bottom: 2.5px solid #00ffc3;
  }
}
@media (max-width: 900px) {
  html,
  body {
    max-width: 100vw !important;
    overflow-x: hidden !important;
  }
  .nav {
    left: 0 !important;
    right: 0 !important;
    width: 100vw !important;
    max-width: 100vw !important;
    min-width: 100vw !important;
    box-sizing: border-box;
  }
}
@media (max-width: 900px) {
  .nav-hamburger {
    display: flex !important;
    position: fixed;
    top: 18px;
    right: 18px;
    z-index: 14000;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
  }
  .nav {
    position: fixed !important;
    left: 0;
    top: 0;
    width: 100vw !important;
    height: 100vh !important;
    max-width: 100vw !important;
    max-height: 100vh !important;
    background: rgba(0, 0, 0, 0.98);
    z-index: 13000;
    display: flex;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 0;
    padding: 0;
    box-shadow: none;
    transform: translateX(100%);
    transition: transform 0.32s cubic-bezier(0.77, 0, 0.18, 1), opacity 0.2s;
    visibility: hidden;
    pointer-events: none;
    opacity: 0;
  }
  .nav.open {
    transform: translateX(0);
    visibility: visible;
    pointer-events: auto;
    opacity: 1;
  }
  .nav a {
    display: block;
    width: 80vw;
    max-width: 320px;
    text-align: center;
    padding: 22px 0 16px 0;
    margin: 0 auto;
    font-size: 1.25rem;
    border-bottom: 1px solid #1b356a33;
    line-height: 1.5;
    color: #e5f2ff;
    font-weight: 700;
    letter-spacing: 0.5px;
    transition: color 0.2s, background 0.2s;
    background: transparent;
  }
  .nav a.active,
  .nav a:focus,
  .nav a:hover {
    color: #00ffc3;
    background: rgba(0, 255, 195, 0.07);
    border-bottom: 2.5px solid #00ffc3;
  }
}
@media (max-width: 900px) {
  .nav-overlay {
    z-index: 12000;

    padding: 0;
    gap: 0;
    transform: translateX(100%);
    transition: transform 0.32s cubic-bezier(0.77, 0, 0.18, 1);
    z-index: 10001;
  }
  .nav.open {
    transform: translateX(0);
  }
  .nav a {
    display: block;
    width: 80vw;
    max-width: 320px;
    text-align: center;
    padding: 22px 0 16px 0;
    margin: 0 auto;
    font-size: 1.25rem;
    border-bottom: 1px solid #1b356a33;
    line-height: 1.5;
    color: #e5f2ff;
    font-weight: 700;
    letter-spacing: 0.5px;
    transition: color 0.2s, background 0.2s;
    background: transparent;
  }
  .nav a.active,
  .nav a:focus,
  .nav a:hover {
    color: #00ffc3;
    background: rgba(0, 255, 195, 0.07);
    border-bottom: 2.5px solid #00ffc3;
  }
  .nav-hamburger {
    position: fixed;
    top: 18px;
    right: 18px;
    z-index: 13000;
    display: flex;
  }
  .nav-overlay {
    z-index: 12000;
  }
}
/* Navbar fix: màu nền, màu chữ, căn chỉnh, bỏ underline */
header.header {
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.25);
  padding: 16px 0;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  z-index: 30000;
  @media (max-width: 900px) {
    /* Nav phủ lên hero khi mở, header luôn trên cùng */
    .nav {
      z-index: 29999 !important;
      position: fixed !important;
      top: 0 !important;
      right: 0 !important;
      left: 0 !important;
      width: 100vw !important;
      height: 100vh !important;
      background: rgba(0, 0, 0, 0.98);
      pointer-events: none;
      opacity: 0;
      visibility: hidden;
      display: none;
    }
    .nav.open {
      display: flex !important;
      pointer-events: auto !important;
      opacity: 1 !important;
      visibility: visible !important;
      z-index: 29999 !important;
    }
    .cta-btn {
      z-index: 1 !important;
      position: relative;
    }
    section.hero,
    .hero-content {
      z-index: 1 !important;
      position: relative;
    }
    header.header {
      z-index: 40000 !important;
      position: fixed;
      top: 0;
      left: 0;
      width: 100vw;
    }
  }
  /* Đảm bảo hero và nút Join Us không đè lên header/navbar */
  @media (max-width: 900px) {
    .cta-btn {
      z-index: 20001 !important;
    }
    section.hero,
    .hero-content {
      z-index: 20000 !important;
    }
    header.header {
      z-index: 30000 !important;
    }
  }
}
.header-spacer {
  height: 80px;
  width: 100%;
  display: block;
}
@media (max-width: 900px) {
  .header-spacer {
    height: 68px;
  }
}
.header-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.6rem;
  font-weight: 800;
  color: #00ffc3;
  letter-spacing: 2px;
}
.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav a {
  color: #e5f2ff;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
  padding: 0 8px;
}
.nav a:after {
  content: "";
  display: block;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #00ffc3, #38bdf8);
  transition: width 0.3s;
  position: absolute;
  left: 0;
  bottom: -4px;
}
.nav a:hover,
.nav a.active {
  color: #00ffc3;
}
.nav a:hover:after,
.nav a.active:after {
  width: 100%;
}

/* Overlay cho nav mobile */
/* Overlay cho nav mobile */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 12000;
  transition: opacity 0.25s, z-index 0s linear 0.25s;
  opacity: 0;
  pointer-events: none;
}
body.nav-mobile-open .nav-overlay {
  display: block;
  opacity: 1;
  pointer-events: auto;
  z-index: 12000;
  transition: opacity 0.25s, z-index 0s;
}
section.hero {
  position: relative;
  z-index: 2;
}
.hero-content {
  position: relative;
  z-index: 3;
}
.cta-btn {
  position: relative;
  z-index: 10;
}
@media (max-width: 900px) {
  .nav {
    z-index: 10000;
  }
}
@media (max-width: 900px) {
  .nav-hamburger {
    position: fixed;
    top: 18px;
    right: 18px;
    z-index: 130;
  }
  .nav {
    padding-top: 80px !important;
  }
}
@media (max-width: 900px) {
  .nav {
    flex-direction: column !important;
    align-items: flex-start !important;
    justify-content: flex-start !important;
    gap: 0 !important;
  }
  .nav a {
    display: block;
    width: 100%;
    text-align: left;
    padding: 18px 0 12px 0;
    margin: 0;
    font-size: 1.18rem;
    border-bottom: 1px solid #1b356a33;
    line-height: 1.4;
    color: #e5f2ff;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: color 0.2s, background 0.2s;
  }
  .nav a.active,
  .nav a:focus,
  .nav a:hover {
    color: #00ffc3;
    background: rgba(0, 255, 195, 0.07);
    border-bottom: 2.5px solid #00ffc3;
  }
  .nav {
    box-shadow: -2px 0 24px #000a;
  }
  .header-flex {
    flex-direction: row;
    gap: 0;
  }
}
/* Hamburger menu và nav mobile */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 120;
  margin-left: 12px;
}
.nav-hamburger span {
  display: block;
  width: 28px;
  height: 3.5px;
  background: #00ffc3;
  margin: 4px 0;
  border-radius: 2px;
  transition: all 0.32s cubic-bezier(0.77, 0, 0.18, 1);
}
.nav-hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-hamburger.active span:nth-child(2) {
  opacity: 0;
}
.nav-hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

body.nav-mobile-open {
  overflow: hidden;
}
html,
body {
  background: #000 !important;
}
/* Hiệu ứng ánh sáng động cho nền đen toàn trang */
.bg-animated::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 900px;
  height: 900px;
  pointer-events: none;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(0, 255, 195, 0.13) 0%,
    rgba(56, 189, 248, 0.09) 60%,
    transparent 100%
  );
  transform: translate(-50%, -50%) scale(1.1);
  filter: blur(32px) brightness(1.2);
  opacity: 0.7;
  z-index: 0;
  animation: bgLightMove 12s ease-in-out infinite alternate;
}

@keyframes bgLightMove {
  0% {
    left: 48%;
    top: 52%;
    filter: blur(32px) brightness(1.2);
    opacity: 0.7;
  }
  30% {
    left: 60%;
    top: 40%;
    filter: blur(40px) brightness(1.3);
    opacity: 0.85;
  }
  60% {
    left: 40%;
    top: 60%;
    filter: blur(28px) brightness(1.1);
    opacity: 0.6;
  }
  100% {
    left: 52%;
    top: 48%;
    filter: blur(36px) brightness(1.25);
    opacity: 0.8;
  }
}
/* Hiệu ứng particle động cho nền đen */
.bg-animated {
  position: fixed;
  z-index: 0;
  inset: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  overflow: hidden;
}
.bg-particle {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    #00ffc3 0%,
    #38bdf8 80%,
    transparent 100%
  );
  opacity: 0.13;
  pointer-events: none;
  animation: particleMove 12s linear infinite alternate;
}
.bg-particle.p2 {
  left: 70vw;
  top: 18vh;
  width: 44px;
  height: 44px;
  opacity: 0.09;
  animation-delay: 2s;
  animation-duration: 14s;
}
.bg-particle.p3 {
  left: 30vw;
  top: 70vh;
  width: 32px;
  height: 32px;
  opacity: 0.11;
  animation-delay: 4s;
  animation-duration: 11s;
}
.bg-particle.p4 {
  left: 80vw;
  top: 60vh;
  width: 60px;
  height: 60px;
  opacity: 0.08;
  animation-delay: 1s;
  animation-duration: 16s;
}
.bg-particle.p5 {
  left: 10vw;
  top: 80vh;
  width: 38px;
  height: 38px;
  opacity: 0.1;
  animation-delay: 3s;
  animation-duration: 13s;
}
@keyframes particleMove {
  0% {
    transform: translateY(0) scale(1);
  }
  50% {
    transform: translateY(-30px) scale(1.13);
  }
  100% {
    transform: translateY(0) scale(1);
  }
}
.album-item {
  /* ...existing code... */
  animation: albumFloat1 7.2s ease-in-out infinite alternate;
}
.album-item:nth-child(2) {
  animation-name: albumFloat2;
  animation-duration: 8.1s;
  animation-delay: 0.7s;
}
.album-item:nth-child(3) {
  animation-name: albumFloat3;
  animation-duration: 6.7s;
  animation-delay: 1.2s;
}
.album-item:nth-child(4) {
  animation-name: albumFloat4;
  animation-duration: 7.8s;
  animation-delay: 0.3s;
}
.album-item:nth-child(5) {
  animation-name: albumFloat5;
  animation-duration: 8.6s;
  animation-delay: 1.1s;
}

@keyframes albumFloat1 {
  0% {
    transform: translateY(0) scale(1) rotate(-2deg);
  }
  30% {
    transform: translateY(-8px) scale(1.03) rotate(0deg);
  }
  60% {
    transform: translateY(6px) scale(0.98) rotate(2deg);
  }
  100% {
    transform: translateY(-4px) scale(1.01) rotate(-1deg);
  }
}
@keyframes albumFloat2 {
  0% {
    transform: translateY(0) scale(1) rotate(1deg);
  }
  25% {
    transform: translateY(-10px) scale(1.04) rotate(-1deg);
  }
  55% {
    transform: translateY(7px) scale(0.97) rotate(2deg);
  }
  100% {
    transform: translateY(-6px) scale(1.02) rotate(0deg);
  }
}
@keyframes albumFloat3 {
  0% {
    transform: translateY(0) scale(1) rotate(0deg);
  }
  20% {
    transform: translateY(-7px) scale(1.02) rotate(2deg);
  }
  70% {
    transform: translateY(8px) scale(0.99) rotate(-2deg);
  }
  100% {
    transform: translateY(-3px) scale(1.01) rotate(1deg);
  }
}
@keyframes albumFloat4 {
  0% {
    transform: translateY(0) scale(1) rotate(-1deg);
  }
  40% {
    transform: translateY(-9px) scale(1.03) rotate(1deg);
  }
  80% {
    transform: translateY(5px) scale(0.98) rotate(-2deg);
  }
  100% {
    transform: translateY(-5px) scale(1.01) rotate(0deg);
  }
}
@keyframes albumFloat5 {
  0% {
    transform: translateY(0) scale(1) rotate(2deg);
  }
  35% {
    transform: translateY(-6px) scale(1.01) rotate(-1deg);
  }
  65% {
    transform: translateY(9px) scale(0.97) rotate(1deg);
  }
  100% {
    transform: translateY(-2px) scale(1.02) rotate(0deg);
  }
}
/* Album ảnh nâng cấp hiệu ứng đặc biệt */
.album-item {
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 4px 24px 0 #0a183355, 0 1px 6px #2563eb22;
  transition: transform 0.28s cubic-bezier(0.77, 0, 0.18, 1), box-shadow 0.28s,
    filter 0.18s;
  background: rgba(24, 36, 58, 0.72);
  aspect-ratio: 4/3;
  width: 210px;
  min-width: 180px;
  max-width: 220px;
  position: relative;
  cursor: pointer;
  backdrop-filter: blur(8px) saturate(1.2);
  border: 2.5px solid rgba(0, 255, 195, 0.18);
  box-shadow: 0 4px 24px 0 #0a183355, 0 1px 6px #2563eb22, 0 0 0 0 #00ffc3cc;
  animation: albumGlow 3.5s ease-in-out infinite alternate;
}
.album-item::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 18px;
  pointer-events: none;
  z-index: 2;
  background: linear-gradient(
    120deg,
    rgba(0, 255, 195, 0.13) 0%,
    rgba(56, 189, 248, 0.09) 100%
  );
  opacity: 0.7;
  transition: opacity 0.3s;
}
.album-item:hover::before {
  opacity: 1;
}
.album-item:hover {
  transform: translateY(-18px) scale(1.09) rotate(-2deg);
  box-shadow: 0 12px 40px #00ffc355, 0 8px 32px #38bdf8cc,
    0 0 24px 4px #00ffc3cc;
  border-color: #00ffc3cc;
  animation: none;
}
.album-item:hover img {
  filter: brightness(1.18) contrast(1.18) saturate(1.13);
  transform: scale(1.07) rotate(2deg) translateY(-6px);
}
.album-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 18px;
  display: block;
  transition: transform 0.32s cubic-bezier(0.77, 0, 0.18, 1), filter 0.22s;
  filter: brightness(0.98) contrast(1.04);
  will-change: transform;
}
@keyframes albumGlow {
  0% {
    box-shadow: 0 4px 24px 0 #0a183355, 0 1px 6px #2563eb22, 0 0 0 0 #00ffc3cc;
  }
  100% {
    box-shadow: 0 4px 24px 0 #0a183355, 0 1px 6px #2563eb22,
      0 0 24px 8px #00ffc3cc;
  }
}
@media (max-width: 900px) {
  .album-flex {
    gap: 14px;
  }
  .album-item {
    width: 44vw;
    min-width: 120px;
    max-width: 98vw;
    border-radius: 12px;
  }
  .album-item img {
    border-radius: 12px;
  }
  .album-item::before {
    border-radius: 12px;
  }
}
/* Album ảnh mới đẹp mắt */
.photo-album {
  padding: 38px 0 38px 0;
  margin: 0;
  position: relative;
  z-index: 2;
}
.album-flex {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  grid-template-rows: 1fr 1fr;
  gap: 32px 18px;
  justify-items: center;
  align-items: end;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}
.album-item {
  /* ...existing code... */
  height: 180px;
}
.album-item:nth-child(1) {
  grid-row: 1;
  grid-column: 1;
  height: 180px;
}
.album-item:nth-child(2) {
  grid-row: 2;
  grid-column: 2;
  height: 140px;
  margin-top: 32px;
}
.album-item:nth-child(3) {
  grid-row: 1;
  grid-column: 3;
  height: 210px;
}
.album-item:nth-child(4) {
  grid-row: 2;
  grid-column: 4;
  height: 160px;
  margin-top: 24px;
}
.album-item:nth-child(5) {
  grid-row: 1;
  grid-column: 5;
  height: 190px;
}
.album-item {
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 4px 24px 0 #0008, 0 1px 6px #0004;
  transition: transform 0.28s cubic-bezier(0.77, 0, 0.18, 1), box-shadow 0.28s,
    filter 0.18s;

  aspect-ratio: 4/3;
  width: 210px;
  min-width: 180px;
  max-width: 220px;
  position: relative;
  cursor: pointer;
}
.album-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 18px;
  display: block;
  transition: transform 0.32s cubic-bezier(0.77, 0, 0.18, 1), filter 0.22s;
  filter: brightness(0.98) contrast(1.04);
}
.album-item:hover {
  transform: translateY(-12px) scale(1.06) rotate(-2deg);
  box-shadow: 0 8px 32px #00ffc355, 0 4px 24px #38bdf8cc;
  z-index: 3;
}
.album-item:hover img {
  filter: brightness(1.13) contrast(1.13) saturate(1.1);
  transform: scale(1.04) rotate(2deg);
}
@media (max-width: 900px) {
  .album-flex {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 14px;
    justify-content: center;
  }
  .album-item {
    width: 44vw;
    min-width: 120px;
    max-width: 98vw;
    border-radius: 12px;
    height: 120px !important;
    margin-top: 0 !important;
  }
  .album-item img {
    border-radius: 12px;
  }
}
/* Hiệu ứng background động gradient và glow */
body {
  font-family: "Inter", "Segoe UI", Arial, sans-serif;

  color: #e5f2ff;
  line-height: 1.7;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", "Segoe UI", Arial, sans-serif;
  background: transparent;
  color: #e5f2ff;
  line-height: 1.7;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}
.container {
  width: 92%;
  max-width: 1200px;
  margin: 0 auto;
}
/* Binary background effect */
.binary-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100vw;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  background: transparent;
}

/* Hero section advanced effect */
section.hero {
  color: #fff;
  padding: 110px 0 80px 0;
  position: relative;
  overflow: hidden;
  min-height: 560px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  align-items: center;
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: left;
}
.hero-title {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 10px;
  letter-spacing: 1px;
  line-height: 1.1;
  text-transform: uppercase;
  animation: fadeInDown 1.2s cubic-bezier(0.77, 0, 0.18, 1) both;
}
.hero-title-highlight {
  color: #00ffc3;
  text-shadow: 0 2px 16px #00ffc399;
  font-size: 3rem;
  font-weight: 900;
  letter-spacing: 2px;
  animation: neonGlow 2s infinite alternate;
}
/* Hero launch highlight */
.hero-launch-highlight {
  display: block;
  margin: 12px 0 10px 0;
  font-size: 1.25rem;
  font-weight: 800;
  color: #00ffc3;
  text-shadow: 0 2px 16px #00ffc399;
  letter-spacing: 1px;
  border-radius: 8px;
  padding: 6px 0 8px 0;
  animation: neonGlow 2s infinite alternate;
}
.hero-desc {
  font-size: 1.2rem;
  margin-bottom: 32px;
  font-weight: 400;
  animation: fadeInUp 1.2s cubic-bezier(0.77, 0, 0.18, 1) 0.5s both;
  color: #cce8ff;
}
@keyframes fadeInDown {
  0% {
    opacity: 0;
    transform: translateY(-40px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes fadeInUp {
  0% {
    opacity: 0;
    transform: translateY(40px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes neonGlow {
  0% {
    text-shadow: 0 2px 16px #00ffc399, 0 0 0 #fff;
  }
  100% {
    text-shadow: 0 4px 32px #00ffc3cc, 0 0 8px #fff;
  }
}
@keyframes popIn {
  0% {
    opacity: 0;
    transform: scale(0.7) rotate(-12deg);
  }
  100% {
    opacity: 1;
    transform: scale(1) rotate(-6deg);
  }
}

/* ===== ULTIMATE OVERRIDE: .cta-fab luôn nổi trên mobile, không bị che ===== */
@media (max-width: 900px) {
  .cta-fab {
    display: block !important;
    position: fixed !important;
    right: 18px !important;
    bottom: 80px !important;
    z-index: 99999 !important;
    pointer-events: auto !important;
    background: linear-gradient(90deg, #00ffc3, #38bdf8) !important;
    color: #071126 !important;
    font-weight: 900 !important;
    font-size: 1.15rem !important;
    border-radius: 999px !important;
    padding: 14px 28px !important;
    box-shadow: 0 8px 26px rgba(0, 255, 195, 0.45),
      0 4px 16px rgba(56, 189, 248, 0.35) !important;
    transition: transform 0.18s, box-shadow 0.18s !important;
    cursor: pointer !important;
  }
  .nav,
  .nav.open,
  .nav-overlay,
  body.nav-mobile-open .nav-overlay {
    z-index: 13000 !important;
  }
}
/* Floating Join Us button for mobile */
.cta-fab {
  display: none;
  position: fixed;
  right: 18px;
  bottom: 22px;
  padding: 14px 28px;
  border-radius: 999px;
  background: linear-gradient(90deg, #00ffc3, #38bdf8);
  color: #071126;
  font-weight: 900;
  font-size: 1.15rem;
  text-decoration: none;
  box-shadow: 0 8px 26px rgba(0, 255, 195, 0.45),
    0 4px 16px rgba(56, 189, 248, 0.35);
  z-index: 99999;
  pointer-events: auto;
  transition: transform 0.18s, box-shadow 0.18s;
}
.cta-fab:hover {
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 12px 32px #00ffc355, 0 8px 32px #38bdf8cc;
}
@media (max-width: 900px) {
  .cta-fab {
    display: block;
  }
}
@media (min-width: 901px) {
  .cta-fab {
    display: none !important;
  }
}
/* === FINAL MOBILE NAV/OVERLAY OVERRIDES === */
@media (max-width: 900px) {
  /* Nav và overlay phủ toàn bộ trang khi mở, chặn mọi click phía dưới */
  .nav {
    pointer-events: none !important;
    z-index: 13000 !important;
  }
  .nav.open {
    pointer-events: auto !important;
    z-index: 13000 !important;
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    background: rgba(0, 0, 0, 0.98) !important;
    display: flex !important;
    opacity: 1 !important;
    visibility: visible !important;
  }
  .nav-overlay {
    pointer-events: none !important;
    z-index: 12000 !important;
    display: none !important;
  }
  body.nav-mobile-open .nav-overlay {
    pointer-events: auto !important;
    z-index: 12999 !important;
    display: block !important;
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    background: rgba(0, 0, 0, 0.55) !important;
    opacity: 1 !important;
  }
  /* Nút Join Us luôn bấm được khi menu đóng, không nổi lên trên nav khi menu mở */
  .cta-btn {
    position: relative;
    z-index: 1 !important;
    pointer-events: auto !important;
  }
  section.hero,
  .hero-content {
    position: relative;
    z-index: 1 !important;
    pointer-events: auto !important;
  }
}
/* ===== FINAL OVERRIDE: Header luôn nổi trên cùng khi cuộn ===== */
header.header {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100vw !important;
  z-index: 99999 !important;
}
/* ===== OVERRIDE: Đảm bảo nút Join Us luôn bấm được trên mobile/tablet ===== */
@media (max-width: 900px) {
  /* Nav chỉ nhận pointer-events khi mở */
  .nav {
    pointer-events: none !important;
    z-index: 13000 !important;
  }
  .nav.open {
    pointer-events: auto !important;
    z-index: 13000 !important;
  }
  /* Overlay không chặn click khi menu đóng */
  .nav-overlay {
    pointer-events: none !important;
    z-index: 12000 !important;
  }
  body.nav-mobile-open .nav-overlay {
    pointer-events: auto !important;
    z-index: 12000 !important;
  }
  /* Nút Join Us luôn bấm được khi menu đóng, không nổi lên trên nav khi nav mở */
  .cta-btn {
    position: relative;
    z-index: 10 !important;
    pointer-events: auto !important;
  }
  section.hero,
  .hero-content {
    position: relative;
    z-index: 1 !important;
    pointer-events: auto !important;
  }
}
.hero-circle {
  position: static;
  margin: 36px auto 0 auto;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: rgba(0, 255, 195, 0.08);
  box-shadow: 0 0 32px #00ffc3cc, 0 0 0 8px #2563eb33;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
  animation: circleGlow 2.5s infinite alternate;
}
.circle-text {
  position: absolute;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  color: #00ffc3;
  font-weight: 700;
  text-align: center;
  animation: rotateCircle 8s linear infinite;
}
.circle-arrow {
  font-size: 2.5rem;
  color: #00ffc3;
  z-index: 2;
  animation: arrowBounce 1.5s infinite alternate;
}
@keyframes circleGlow {
  0% {
    box-shadow: 0 0 32px #00ffc3cc, 0 0 0 8px #2563eb33;
  }
  100% {
    box-shadow: 0 0 64px #00ffc3cc, 0 0 0 16px #2563eb33;
  }
}
@keyframes rotateCircle {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
@keyframes arrowBounce {
  0% {
    transform: translateY(0);
  }
  100% {
    transform: translateY(18px);
  }
}

/* Card effect for features */
.card-effect {
  transform: rotate(-3deg) scale(1);
  box-shadow: 0 4px 24px rgba(0, 255, 195, 0.08),
    0 2px 12px rgba(56, 189, 248, 0.08);
  transition: transform 0.25s cubic-bezier(0.77, 0, 0.18, 1), box-shadow 0.25s;
}
.card-effect:hover {
  transform: rotate(2deg) scale(1.07);
  box-shadow: 0 8px 32px #00ffc355, 0 4px 24px #38bdf8cc;
  z-index: 2;
}

/* Responsive for hero circle */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-content {
    text-align: center;
  }
  .hero-circle {
    position: static;
    margin: 24px auto 0 auto;
    width: 80px;
    height: 80px;
  }
  .circle-text {
    font-size: 0.7rem;
  }
  .circle-arrow {
    font-size: 1.5rem;
  }
}
header.header {
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.25);
  padding: 16px 0;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  z-index: 20000;
}
.header-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.6rem;
  font-weight: 800;
  color: #00ffc3;
  letter-spacing: 2px;
}
.nav a {
  color: #cfe9ff;
  text-decoration: none;
  margin-left: 32px;
  font-size: 1rem;
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
}
.nav a:after {
  content: "";
  display: block;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #00ffc3, #38bdf8);
  transition: width 0.3s;
  position: absolute;
  left: 0;
  bottom: -4px;
}
.nav a:hover {
  color: #00ffc3;
}
.nav a:hover:after {
  width: 100%;
}
.nav a.active {
  color: #00ffc3;
}
.nav a.active:after {
  width: 100%;
}

/* ...existing code... */

section.mission {
  padding: 70px 0 40px 0;

  text-align: center;
  position: relative;
}
.mission {
  scroll-margin-top: 90px;
}
.mission h2 {
  color: #00ffc3;
  font-size: 2.1rem;
  margin-bottom: 18px;
  font-weight: 700;
}
.mission p {
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 auto 28px auto;
  color: #cfe9ff;
}
.mission-shape {
  max-width: 180px;
  opacity: 0.7;
  margin-top: 18px;
  animation: rotate 8s linear infinite;
}
@keyframes rotate {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

section.features {
  padding: 70px 0 40px 0;
}
.features h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 36px;
  color: #00ffc3;
  font-weight: 700;
}
.features-list {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}
.feature-item {
  background: linear-gradient(120deg, #0e234b 60%, #0a1c3b 100%);
  border-radius: 18px;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.3);
  padding: 38px 28px 28px 28px;
  width: 320px;
  text-align: center;
  transition: transform 0.22s, box-shadow 0.22s;
  position: relative;
  overflow: hidden;
}
.feature-item img {
  margin-bottom: 18px;
  filter: drop-shadow(0 2px 8px #00ffc388);
  transition: transform 0.22s;
}
.feature-item:hover img {
  transform: scale(1.13) rotate(-8deg);
}
.feature-item:hover {
  transform: translateY(-10px) scale(1.04);
  box-shadow: 0 8px 32px rgba(0, 255, 195, 0.18);
}
.feature-item h3 {
  color: #00ffc3;
  margin-bottom: 12px;
  font-size: 1.18rem;
  font-weight: 700;
}
.feature-item p {
  font-size: 1.02rem;
  color: #cfe9ff;
}

/* Ảnh thay thế chữ trong features */
.feature-img-replace {
  display: block;
  margin: 18px auto 0 auto;
  max-width: 100%;
  max-height: 180px;
  width: auto;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 2px 12px #00ffc355;
  object-fit: contain;
}

section.partners {
  padding: 60px 0 40px 0;
}
.partners h2 {
  text-align: center;
  color: #00ffc3;
  font-size: 2rem;
  margin-bottom: 30px;
  font-weight: 700;
}
.partners-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 32px;
  align-items: center;
}
.partners-list img {
  filter: grayscale(0.2) brightness(1.1);
  transition: filter 0.2s, transform 0.2s;
  border-radius: 12px;
  background: #06132b;
  padding: 8px 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
  height: 48px;
}
.partners-list img:hover {
  filter: grayscale(0) brightness(1.2) drop-shadow(0 2px 8px #38bdf8cc);
  transform: scale(1.08) rotate(-3deg);
}

section.progress {
  padding: 70px 0 40px 0;

  text-align: center;
}
.progress h2 {
  color: #00ffc3;
  font-size: 2rem;
  margin-bottom: 28px;
  font-weight: 700;
}
.progress-list {
  list-style: none;
  margin-bottom: 28px;
}
.progress-list li {
  font-size: 1.05rem;
  margin-bottom: 10px;
  position: relative;
  padding-left: 28px;
  color: #cfe9ff;
}
.progress-list li:before {
  content: "\2605";
  color: #00ffc3;
  position: absolute;
  left: 0;
  font-size: 1.1em;
  top: 0;
}
.progress-img {
  max-width: 320px;
  width: 100%;
  border-radius: 18px;
  box-shadow: 0 4px 24px rgba(0, 255, 195, 0.13);
  margin: 0 auto;
}

section.cta {
  padding: 70px 0 40px 0;

  color: #fff;
  text-align: center;
}
.cta h2 {
  font-size: 2rem;
  margin-bottom: 18px;
  font-weight: 700;
}
.cta p {
  font-size: 1.13rem;
  margin-bottom: 28px;
}
.contact-form {
  max-width: 400px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.contact-form input,
.contact-form textarea {
  padding: 13px 16px;
  border: 1px solid #1b356a;
  border-radius: 8px;
  font-size: 1rem;
  resize: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  background: #06132b;
  color: #e5f2ff;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid #00ffc3;
}
.contact-form button {
  background: #00ffc3;
  color: #071126;
  border: 0;
  padding: 13px 0;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, transform 0.2s;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}
.contact-form button:hover {
  background: #19ffd3;
  color: #001220;
  transform: translateY(-2px) scale(1.04);
}

footer.footer {
  color: #cfe9ff;
  text-align: center;
  padding: 22px 0 10px 0;
  font-size: 1rem;
  margin-top: 30px;
}
.footer-social {
  margin-top: 8px;
}
.footer-social a {
  color: #cfe9ff;
  margin: 0 8px;
  text-decoration: underline;
  font-weight: 500;
  transition: color 0.2s;
}
.footer-social a:hover {
  color: #00ffc3;
}

@media (max-width: 900px) {
  .features-list,
  .partners-list {
    flex-direction: column;
    align-items: center;
    gap: 18px;
  }
  .feature-item,
  .partners-list img {
    width: 90%;
    margin-bottom: 18px;
  }
  .header-flex {
    flex-direction: column;
    gap: 12px;
  }
  .nav {
    text-align: center;
    margin-top: 12px;
  }
  .hero-img img,
  .progress-img {
    max-width: 90vw;
  }
}

/* CTA button in hero */

/* Section anchors offset */
#mission,
#features,
#partners,
#progress,
#contact {
  text-decoration: none;
}