:root {
  --accent: #6366f1;
  --accent-dark: #4f46e5;
  --accent-soft: rgba(99, 102, 241, 0.12);
  --text: #1e293b;
  --text-muted: #64748b;
  --card-bg: #ffffff;
  --radius: 20px;
  --shadow: 0 24px 60px rgba(15, 23, 42, 0.18);
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  font-family:
    "Inter",
    system-ui,
    -apple-system,
    sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  background-attachment: fixed;
  transition: background 0.6s ease;
}

.quote-card {
  position: relative;
  width: 100%;
  max-width: 680px;
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 56px 56px 40px;
  box-shadow: var(--shadow);
  animation: card-in 0.5s ease both;
}

@keyframes card-in {
  from {
    opacity: 0;
    transform: translateY(24px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.quote-mark {
  position: absolute;
  top: 8px;
  left: 28px;
  font-family: "Playfair Display", serif;
  font-size: 120px;
  line-height: 1;
  color: var(--accent-soft);
  user-select: none;
  pointer-events: none;
}

.quote-text {
  position: relative;
  min-height: 140px;
  margin: 0 0 20px;
  font-family: "Playfair Display", serif;
  font-size: 28px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--text);
  transition: opacity var(--transition);
}

.quote-text.fade-out {
  opacity: 0;
  transform: translateY(8px);
}

.quote-text.fade-in {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity 0.4s ease,
    transform 0.4s ease;
}

.quote-author {
  display: block;
  margin-bottom: 36px;
  font-family: "Inter", sans-serif;
  font-size: 16px;
  font-weight: 600;
  font-style: normal;
  color: var(--accent);
  text-align: right;
  transition: opacity var(--transition);
}

.quote-author::before {
  content: "— ";
}

.loading {
  font-family: "Inter", sans-serif;
  font-size: 18px;
  font-weight: 400;
  color: var(--text-muted);
  animation: pulse 1.4s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.4;
  }
  50% {
    opacity: 1;
  }
}

.actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: 12px;
  font-family: "Inter", sans-serif;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease,
    color 0.2s ease;
}

.btn:focus-visible {
  outline: 3px solid var(--accent-soft);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(99, 102, 241, 0.45);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
}

.btn-outline:hover {
  background: var(--accent-soft);
  transform: translateY(-2px);
}

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

.credit {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid #e2e8f0;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}

.credit a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.credit a:hover {
  text-decoration: underline;
}

@media (max-width: 600px) {
  .quote-card {
    padding: 40px 24px 28px;
  }

  .quote-text {
    font-size: 22px;
    min-height: 120px;
  }

  .quote-mark {
    font-size: 90px;
    left: 16px;
  }

  .actions {
    flex-direction: column-reverse;
    align-items: stretch;
  }

  .btn {
    justify-content: center;
  }
}