* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  background: linear-gradient(160deg, #0b1220, #0e1a33);
  color: #eaf0ff;
  line-height: 1.6;
  overflow-x: hidden;
}

html {
  background-color: linear-gradient(160deg, #0b1220, #0e1a33);
}

/* Ambient background glow */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, #6ee7ff22, transparent 50%),
    radial-gradient(circle at 80% 70%, #7aa2ff22, transparent 60%);
  background-size: 120% 120%;
  animation: drift 20s infinite alternate ease-in-out;
  pointer-events: none;
  z-index: -1;
}

@keyframes drift {
  from {
    background-position:
      0% 0%,
      100% 100%;
  }
  to {
    background-position:
      15% 8%,
      85% 92%;
  }
}

/* -------------------- */
/* Hero Section */
/* -------------------- */

.hero-stride {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
}

.hero-content {
  max-width: 850px;
}

.hero-stride h1 {
  font-size: clamp(4rem, 8vw, 7rem);
  font-weight: 900;
  letter-spacing: 0.2em;
  margin-bottom: 1.5rem;
  background: linear-gradient(90deg, #6ee7ff, #7aa2ff, #c084fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-stride p {
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  max-width: 650px;
  margin: 0 auto;
  color: #b8c4e3;
  line-height: 1.7;
}

/* Entrance animation */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 900ms cubic-bezier(0.2, 0.9, 0.2, 1) forwards;
}

.delay-1 {
  animation-delay: 200ms;
}

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

/* -------------------- */
/* STRIDE Breakdown */
/* -------------------- */

.stride-breakdown {
  padding: 8rem 2rem;
  display: grid;
  gap: 4rem;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.letter {
  font-size: 2.3rem;
  font-weight: 700;
  opacity: 0;
  color: #888888;
  transform: translateY(40px);
  transition: all 0.8s ease;
  position: relative;
}

.letter::before {
  content: attr(data-letter);
  position: absolute;
  left: 50%;
  top: -50px;
  transform: translateX(-50%);
  font-size: 6rem;
  font-weight: 900;
  opacity: 0.04;
  letter-spacing: 0.2em;
}

.letter.visible {
  opacity: 1;
  transform: translateY(0);
}

.letter:hover {
  color: #6ee7ff;
  text-shadow: 0 0 20px #6ee7ff55;
}

/* -------------------- */
/* Creator Section */
/* -------------------- */

.creator-grid {
  display: flex;
  gap: 4rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 4rem;
}

.creator-card {
  text-align: center;
}

.creator-img {
  width: 260px;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 24px;
  display: block;

  box-shadow:
    0 30px 80px #00000070,
    0 0 60px #6ee7ff22;

  transition:
    transform 0.4s ease,
    box-shadow 0.4s ease;
}

.creator-img:hover {
  transform: scale(1.05);
  box-shadow:
    0 40px 100px #00000080,
    0 0 80px #6ee7ff44;
}

.creator-card h5 {
  margin-top: 1rem;
  color: #eaf0ff;
}

.creator-info {
  max-width: 600px;
  margin: 0 auto;
  text-align: left;
}

/* Heading */
.creator-info h2 {
  font-size: 2.4rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: #ffffff;
  letter-spacing: -0.02em;
}

/* Paragraph */
.creator-info p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #b8c4e3;
  margin: 0;
}

/* -------------------- */
/* Timeline */
/* -------------------- */

.timeline {
  padding: 8rem 2rem;
  max-width: 800px;
  margin: 0 auto;
  border-left: 2px solid #ffffff15;
}

.event {
  margin-bottom: 4rem;
  padding-left: 2.5rem;
  position: relative;
}

.event::before {
  content: "";
  position: absolute;
  left: -11px;
  top: 6px;
  width: 16px;
  height: 16px;
  background: #6ee7ff;
  border-radius: 50%;
  box-shadow: 0 0 15px #6ee7ff88;
}

.event h3 {
  color: #eaf0ff;
  margin: 0;
  font-size: 1.5rem;
}

.event p {
  color: #b8c4e3;
  margin-top: 0.5rem;
  line-height: 1.7;
}

/* Responsive */

@media (max-width: 768px) {
  .creator {
    gap: 3rem;
  }

  .creator-image {
    width: 240px;
    height: 240px;
  }
}

/* Back Button */
.back-button {
  position: fixed;
  top: 30px;
  left: 30px;
  padding: 0.6rem 1.2rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  color: #eaf0ff;
  text-decoration: none;
  border: 1px solid #ffffff1a;
  transition: 0.25s ease;
  z-index: 1000;
}

.back-button:hover {
  transform: translateX(-2px);
  background: rgba(255, 255, 255, 0.1);
  border-color: #6ee7ff55;
}

.back-button:focus {
  outline: none;
}