/**
 * Base Styles — Apple Glassmorphism Elegance
 */

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

html {
  font-size: 17px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: linear-gradient(180deg, #f5f5f7 0%, #ffffff 20%, #fafafc 100%);
  background-attachment: fixed;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: #1d1d1f;
  line-height: 1.47059;
  letter-spacing: -0.022em;
  min-height: 100vh;
}

a {
  color: #0071e3;
  text-decoration: none;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

a:hover {
  opacity: 0.75;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ── Glass Card Base Component ── */
.glass-card {
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 20px;
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.02),
    0 4px 8px rgba(0, 0, 0, 0.03),
    0 12px 24px rgba(0, 0, 0, 0.04);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-card:hover {
  background: rgba(255, 255, 255, 0.85);
  box-shadow:
    0 2px 4px rgba(0, 0, 0, 0.03),
    0 8px 16px rgba(0, 0, 0, 0.04),
    0 20px 40px rgba(0, 0, 0, 0.06);
  transform: translateY(-2px);
}

/* ── Pill Tag Component ── */
.pill-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: #1d1d1f;
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 100px;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.pill-tag:hover {
  background: rgba(0, 113, 227, 0.08);
  border-color: rgba(0, 113, 227, 0.2);
  color: #0071e3;
}

/* ── Glass Button ── */
.glass-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 500;
  color: #0071e3;
  background: rgba(0, 113, 227, 0.06);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 113, 227, 0.15);
  border-radius: 100px;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-btn:hover {
  background: rgba(0, 113, 227, 0.12);
  border-color: rgba(0, 113, 227, 0.25);
  text-decoration: none;
  opacity: 1;
  transform: translateY(-1px);
}

/* Loading */
.loading {
  padding: 120px 0;
  text-align: center;
  color: #86868b;
}

.loading::after {
  content: "";
  display: inline-block;
  width: 28px;
  height: 28px;
  border: 2.5px solid #e8e8ed;
  border-top-color: #86868b;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Error */
.error-message {
  padding: 32px;
  background: rgba(255, 242, 242, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 204, 204, 0.5);
  border-radius: 20px;
  color: #c62828;
  font-size: 15px;
  line-height: 1.5;
  white-space: pre-wrap;
}

.error-message strong {
  font-weight: 600;
}