:root {
  --text-main: #ecf5ff;
  --text-soft: #b7c9df;
  --panel-bg: rgba(8, 16, 30, 0.68);
  --panel-stroke: rgba(182, 210, 239, 0.28);
  --accent: #31a8ff;
  --accent-2: #1a6ac8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Manrope", sans-serif;
  color: var(--text-main);
  background: #0d1d33;
  overflow-x: hidden;
}

.landing-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
}

.bg-grid {
  position: absolute;
  left: -18vw;
  top: -10vh;
  width: 136vw;
  height: 130vh;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.9rem;
  transform: rotate(-13deg) scale(1.08);
  transform-origin: center;
}

.bg-col {
  height: 130vh;
  overflow: hidden;
  position: relative;
}

.bg-track {
  display: grid;
  gap: 0.9rem;
  animation: flow-up 40s linear infinite;
}

.bg-col.reverse .bg-track {
  animation-name: flow-down;
}

.bg-card {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: #10203a;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.28);
  aspect-ratio: 16 / 10;
}

.bg-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: brightness(1.18) saturate(1.06) contrast(1.01);
}

.bg-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(8, 20, 36, 0.16) 0%, rgba(8, 20, 36, 0.28) 68%, rgba(8, 20, 36, 0.4) 100%),
    radial-gradient(circle at 16% 8%, rgba(130, 196, 255, 0.24), transparent 46%),
    radial-gradient(circle at 88% 92%, rgba(150, 213, 255, 0.22), transparent 44%);
}

.bg-vignette {
  position: absolute;
  inset: 0;
  box-shadow: inset 0 0 130px rgba(0, 0, 0, 0.24);
}

.landing-intro,
.hero-wrap {
  position: relative;
  z-index: 1;
}

.landing-intro {
  min-height: clamp(38rem, 100svh, 64rem);
  width: min(1200px, 94vw);
  margin: 0 auto;
  padding: clamp(4.5rem, 8vw, 6rem) 0 clamp(1rem, 3vw, 2rem);
  display: grid;
  place-items: center;
  align-content: center;
  gap: 1rem;
  text-align: center;
}

.intro-content {
  width: min(900px, 95vw);
  padding: clamp(1rem, 3vw, 2rem) clamp(0.8rem, 2.4vw, 1.8rem);
}

.intro-content img {
  width: min(145px, 36vw);
  height: auto;
  display: block;
  margin: 0 auto;
  filter: drop-shadow(0 8px 16px rgba(23, 82, 163, 0.35));
}

.intro-content h1 {
  margin: 0;
  font-size: clamp(2.2rem, 7vw, 4.6rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  text-shadow: 0 8px 20px rgba(5, 16, 33, 0.35);
}

.intro-sub {
  margin: 0.25rem 0 0;
  color: var(--text-soft);
  font-size: clamp(1rem, 2vw, 1.35rem);
  text-shadow: 0 4px 10px rgba(5, 16, 33, 0.25);
}

.intro-highlight {
  margin: 0.6rem auto 0;
  width: min(840px, 95vw);
  font-size: clamp(1.02rem, 2vw, 1.34rem);
  line-height: 1.45;
  color: #d8ebff;
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 0;
  text-shadow: 0 4px 10px rgba(5, 16, 33, 0.25);
}

.head-actions {
  display: flex;
  gap: 0.55rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 0.9rem;
}

.hero-wrap {
  width: min(1200px, calc(100vw - 1.4rem));
  margin: 0 auto 1.2rem;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 1rem;
}

.hero-card,
.features-card,
.goal-card {
  border-radius: 24px;
  border: 1px solid var(--panel-stroke);
  background: var(--panel-bg);
  backdrop-filter: blur(10px) saturate(1.12);
  -webkit-backdrop-filter: blur(10px) saturate(1.12);
  box-shadow: 0 20px 42px rgba(0, 0, 0, 0.36);
  padding: clamp(1rem, 2.2vw, 1.6rem);
}

.hero-card h2 {
  margin: 0.3rem 0 0;
  font-size: clamp(2rem, 4.6vw, 3.7rem);
  line-height: 1.05;
  font-weight: 800;
  text-wrap: balance;
}

.hero-card h3 {
  margin: 0;
  font-size: clamp(1.15rem, 2.2vw, 1.45rem);
}

.hero-card p {
  margin: 0.8rem 0 0;
  font-size: clamp(0.95rem, 1.8vw, 1.15rem);
  line-height: 1.65;
  color: var(--text-soft);
}

.hero-actions {
  margin-top: 1.05rem;
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.btn {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  min-height: 2.8rem;
  padding: 0.62rem 1.05rem;
  font-weight: 700;
  color: #f5fbff;
  border: 1px solid rgba(98, 173, 255, 0.45);
  background: linear-gradient(120deg, var(--accent-2), var(--accent));
}

.btn.about-btn {
  background: linear-gradient(120deg, #14b8a6, #0ea5e9);
  border-color: rgba(118, 230, 224, 0.55);
  box-shadow: 0 12px 28px rgba(20, 184, 166, 0.22);
}

.btn.ghost {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(182, 210, 239, 0.45);
  color: #dcecff;
}

.about-shell {
  position: relative;
  z-index: 1;
  width: min(1200px, calc(100vw - 1.4rem));
  margin: 0 auto;
  padding: clamp(2.6rem, 6vw, 5rem) 0 clamp(1rem, 3vw, 2rem);
  display: grid;
  gap: 1rem;
}

.about-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.about-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text-main);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.about-brand img {
  width: clamp(3.25rem, 10vw, 4.6rem);
  height: auto;
  display: block;
  filter: drop-shadow(0 8px 16px rgba(23, 82, 163, 0.28));
}

.about-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.about-hero,
.about-section {
  border-radius: 24px;
  border: 1px solid var(--panel-stroke);
  background: var(--panel-bg);
  backdrop-filter: blur(10px) saturate(1.12);
  -webkit-backdrop-filter: blur(10px) saturate(1.12);
  box-shadow: 0 20px 42px rgba(0, 0, 0, 0.36);
  padding: clamp(1rem, 2.4vw, 1.7rem);
}

.about-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(16rem, 0.85fr);
  gap: 1rem;
  align-items: center;
}

.about-copy h1,
.about-section h2 {
  margin: 0;
  text-wrap: balance;
}

.about-copy h1 {
  font-size: clamp(2rem, 5vw, 4rem);
}

.about-copy p,
.about-section p {
  margin: 0.9rem 0 0;
  color: var(--text-soft);
  font-size: clamp(0.96rem, 1.8vw, 1.08rem);
  line-height: 1.72;
}

.about-copy .welcome-message {
  color: #e8f5ff;
  font-size: clamp(1rem, 2vw, 1.14rem);
}

.founder-card {
  border: 1px solid rgba(179, 206, 235, 0.24);
  border-radius: 20px;
  background: rgba(8, 18, 33, 0.56);
  padding: clamp(1rem, 2vw, 1.25rem);
  display: grid;
  justify-items: center;
  text-align: center;
  gap: 0.8rem;
}

.founder-avatar {
  width: clamp(7rem, 18vw, 10rem);
  aspect-ratio: 1;
  border-radius: 50%;
  padding: 0.3rem;
  background: linear-gradient(135deg, rgba(49, 168, 255, 0.85), rgba(20, 184, 166, 0.85));
  box-shadow: 0 18px 32px rgba(8, 25, 52, 0.28);
}

.founder-avatar img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  border: 2px solid rgba(8, 18, 33, 0.56);
}

.founder-card h3 {
  margin: 0;
  font-size: clamp(1.2rem, 2vw, 1.5rem);
}

.founder-card p {
  margin: 0;
  color: var(--text-soft);
}

.quote-chip {
  width: 100%;
  border-radius: 16px;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(182, 210, 239, 0.22);
  background: linear-gradient(145deg, rgba(14, 165, 163, 0.18), rgba(49, 168, 255, 0.14));
  color: #ebf6ff;
  font-weight: 700;
  line-height: 1.55;
}

.about-section h2 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
}

.about-section .vision-tag {
  margin: 0;
  color: #d7ecff;
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 800;
}

.features-card h3 {
  margin: 0;
  font-size: clamp(1.2rem, 2.4vw, 1.6rem);
}

.goal-card {
  grid-column: 1 / -1;
}

.goal-card h3 {
  margin: 0;
  font-size: clamp(1.2rem, 2.4vw, 1.6rem);
}

.goal-card p {
  margin: 0.65rem 0 0;
  font-size: clamp(0.92rem, 1.55vw, 1.04rem);
  line-height: 1.65;
  color: var(--text-soft);
}

.feature-grid {
  margin-top: 0.8rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
  gap: 0.65rem;
}

.feature-grid article {
  border: 1px solid rgba(179, 206, 235, 0.24);
  border-radius: 14px;
  background: rgba(8, 18, 33, 0.48);
  padding: 0.72rem;
  min-width: 0;
}

.feature-grid h4 {
  margin: 0;
  font-size: 0.98rem;
  color: #eaf4ff;
}

.feature-grid p {
  margin: 0.36rem 0 0;
  font-size: 0.86rem;
  line-height: 1.45;
  color: #b7c9df;
}

@keyframes flow-up {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(-50%);
  }
}

@keyframes flow-down {
  from {
    transform: translateY(-50%);
  }
  to {
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .bg-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .hero-wrap {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }

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

@media (max-width: 720px) {
  .landing-intro {
    min-height: auto;
    width: min(100%, calc(100vw - 1rem));
    padding-top: 4.75rem;
  }

  .head-actions {
    width: 100%;
    justify-content: center;
  }

  .bg-grid {
    left: -30vw;
    width: 170vw;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.65rem;
    transform: rotate(-10deg) scale(1.08);
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .intro-content img {
    width: min(125px, 38vw);
  }

  .hero-card,
  .features-card,
  .goal-card,
  .about-hero,
  .about-section {
    border-radius: 20px;
  }
}

@media (max-width: 560px) {
  .bg-grid {
    left: -42vw;
    width: 190vw;
    height: 120vh;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.5rem;
    transform: rotate(-8deg) scale(1.04);
  }

  .bg-col {
    height: 120vh;
  }

  .bg-track {
    gap: 0.5rem;
  }

  .landing-intro,
  .hero-wrap,
  .about-shell {
    width: min(100%, calc(100vw - 1rem));
  }

  .landing-intro {
    padding-top: 4.2rem;
    padding-bottom: 0.7rem;
  }

  .intro-content {
    width: 100%;
    padding: 0.85rem 0.65rem;
  }

  .intro-highlight {
    width: 100%;
  }

  .head-actions,
  .hero-actions,
  .about-actions {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr;
  }

  .head-actions .btn,
  .hero-actions .btn,
  .about-actions .btn {
    width: 100%;
  }

  .hero-wrap {
    gap: 0.75rem;
    margin-bottom: 1rem;
  }

  .hero-card,
  .features-card,
  .goal-card,
  .about-hero,
  .about-section {
    border-radius: 18px;
    padding: 0.85rem;
  }

  .about-topbar {
    align-items: flex-start;
  }

  .founder-card {
    justify-items: start;
    text-align: left;
  }

  .founder-avatar {
    width: clamp(6.2rem, 24vw, 8rem);
  }

  .feature-grid article {
    padding: 0.68rem;
  }

  .feature-grid p {
    font-size: 0.84rem;
  }

  .bg-vignette {
    box-shadow: inset 0 0 80px rgba(0, 0, 0, 0.2);
  }
}

@media (max-width: 420px) {
  .bg-grid {
    opacity: 0.82;
  }
}