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

:root {
  --black: #0a0a0a;
  --white: #f5f5f5;
  --gray: #888;
}

body {
  background: var(--black);
  color: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
  overflow-x: hidden;
}

/* Panels */
.panel {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.panel-content {
  text-align: center;
  padding: 2rem;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.panel-content.visible {
  opacity: 1;
  transform: translateY(0);
}

.panel-content.fading {
  opacity: 0;
  transform: translateY(-20px);
}

/* Hero */
.hero-panel .panel-content {
  opacity: 1;
  transform: translateY(0);
}

.hero-panel h1 {
  font-size: clamp(3rem, 12vw, 8rem);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.hero-panel h1 .line {
  display: block;
}

.hero-panel h1 strong {
  font-weight: 900;
  letter-spacing: -0.03em;
}

/* Slogans */
.slogan-panel h2 {
  font-size: clamp(3rem, 12vw, 8rem);
  font-weight: 200;
  letter-spacing: -0.02em;
  margin-bottom: 2rem;
}

/* Final panel */
.final-panel .panel-content {
  max-width: 600px;
}

.mission {
  font-size: 1.25rem;
  line-height: 1.7;
  color: var(--gray);
  margin-bottom: 3rem;
}

.counter {
  margin-bottom: 3rem;
}

.counter-amount {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.counter-label {
  font-size: 0.875rem;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.25rem;
}

/* Donate button */
.donate-btn {
  display: inline-block;
  padding: 1rem 3rem;
  font-size: 1.125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--black);
  background: var(--white);
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.donate-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(255, 255, 255, 0.2);
}

.donate-btn:active {
  transform: translateY(0);
}

/* Footer */
footer {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid #222;
}

.disclaimer {
  font-size: 0.75rem;
  color: #555;
  line-height: 1.5;
}