/* ============================================
   HollowLight — Friends Page
   Aesthetic: ZZZ 绳网论坛 / Inter-Knot
   Black bg, neon yellow (#fbfe00), cut corners
   ============================================ */

/* --- Page Container --- */
.friends-page {
  min-height: 100vh;
  padding-bottom: 60px;
  font-family: 'Noto Sans SC', 'Segoe UI', sans-serif;
}

/* --- Header (ZZZ neon style) --- */
.friends-header {
  text-align: center;
  padding: 56px 24px 40px;
}

.friends-header__title {
  font-size: clamp(2.4rem, 6vw, 3.6rem);
  font-weight: 900;
  color: #fbfe00;
  margin: 0;
  letter-spacing: 0.1em;
  text-shadow: 0 0 30px rgba(251, 254, 0, 0.3);
  line-height: 1.2;
}

.friends-header__line {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin: 16px auto;
  width: 200px;
  height: 2px;
  background: linear-gradient(90deg, transparent, #fbfe00, transparent);
  position: relative;
}

.friends-header__dot {
  width: 8px;
  height: 8px;
  background: #fbfe00;
  border-radius: 0;
  transform: rotate(45deg);
  flex-shrink: 0;
  box-shadow: 0 0 10px rgba(251, 254, 0, 0.6);
  position: absolute;
}

.friends-header__sub {
  font-size: 0.75rem;
  color: #666;
  letter-spacing: 0.35em;
  margin: 12px 0 0;
  font-weight: 400;
  text-transform: uppercase;
}

/* --- Sections wrapper --- */
.friends-sections {
  padding-bottom: 8px;
}

/* --- Individual Section --- */
.friends-section {
  max-width: 1200px;
  margin: 0 auto 56px;
  padding: 0 24px;
}

/* Section label bar */
.friends-section__header {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 24px;
  padding: 0 0 12px 14px;
  border-bottom: 1px solid rgba(251, 254, 0, 0.08);
  position: relative;
}

.friends-section__header::before {
  content: '';
  position: absolute;
  left: 0;
  top: 2px;
  bottom: 14px;
  width: 3px;
  background: #fbfe00;
  border-radius: 2px;
}

.friends-section__title {
  font-size: 1.05rem;
  font-weight: 800;
  color: #fff;
  margin: 0;
  letter-spacing: 0.06em;
}

.friends-section__subtitle {
  font-size: 0.68rem;
  color: #555;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  font-weight: 400;
}

/* --- Friends Grid --- */
.friends-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, 240px);
  gap: 20px;
  justify-content: center;
}

/* --- Friend Card --- */
.friend-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 28px 20px 20px;
  background: #1c1c1c;
  border: 1px solid #2a2a2a;
  /* ZZZ cut-corner: 20px top-left, top-right, bottom-left; 0 bottom-right */
  border-radius: 20px 20px 20px 0;
  text-decoration: none;
  color: inherit;
  transition: all 280ms cubic-bezier(0.22, 0.61, 0.36, 1);
  position: relative;
  overflow: hidden;
  cursor: pointer;

  /* Entry animation */
  opacity: 0;
  animation: friendCardIn 400ms ease both;
}

@keyframes friendCardIn {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Diagonal stripe decoration (ZZZ vibe) */
.friend-card::before {
  content: '';
  position: absolute;
  top: -1px;
  right: -1px;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, transparent 50%, #2a2a2a 50%);
  transition: background 280ms ease;
  z-index: 1;
}

.friend-card:hover {
  border-color: #fbfe00;
  transform: translateY(-4px);
  box-shadow:
    0 4px 24px rgba(251, 254, 0, 0.08),
    0 0 0 1px rgba(251, 254, 0, 0.1);
}

.friend-card:hover::before {
  background: linear-gradient(135deg, transparent 50%, rgba(251, 254, 0, 0.3) 50%);
}

/* Scan line effect on hover */
.friend-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(251, 254, 0, 0.03),
    transparent
  );
  transition: none;
  pointer-events: none;
}

.friend-card:hover::after {
  animation: friendScanline 600ms ease forwards;
}

@keyframes friendScanline {
  from { left: -100%; }
  to { left: 100%; }
}

/* --- Avatar --- */
.friend-card__avatar-wrap {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid #333;
  background: #111;
  flex-shrink: 0;
  margin-bottom: 14px;
  transition: border-color 280ms ease, box-shadow 280ms ease;
}

.friend-card:hover .friend-card__avatar-wrap {
  border-color: #fbfe00;
  box-shadow: 0 0 16px rgba(251, 254, 0, 0.2);
}

.friend-card__avatar {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  transition: transform 300ms ease;
}

.friend-card__avatar--error {
  object-fit: contain;
  padding: 8px;
  opacity: 0.4;
}

.friend-card:hover .friend-card__avatar {
  transform: scale(1.08);
}

/* Emoji / text icon fallback (no avatar) */
.friend-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  font-size: 1.6rem;
  line-height: 1;
  user-select: none;
}

/* --- Name --- */
.friend-card__name {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  margin: 0 0 6px;
  text-align: center;
  letter-spacing: 0.02em;
  line-height: 1.3;
}

/* --- Description --- */
.friend-card__desc {
  font-size: 0.78rem;
  color: #888;
  margin: 0 0 12px;
  text-align: center;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 2.34em; /* reserve space for 2 lines */
}

/* --- URL tag --- */
.friend-card__url {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 12px;
  border-radius: 4px 4px 4px 0;
  background: rgba(251, 254, 0, 0.08);
  color: #fbfe00;
  font-size: 0.68rem;
  font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
  letter-spacing: 0.02em;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: background 280ms ease;
  margin-top: auto;
}

.friend-card:hover .friend-card__url {
  background: rgba(251, 254, 0, 0.14);
}

.friend-card__link-icon {
  flex-shrink: 0;
  opacity: 0.6;
}

/* --- Empty State --- */
.friends-empty {
  text-align: center;
  padding: 80px 24px;
}

.friends-empty__icon {
  font-size: 3rem;
  color: #fbfe00;
  opacity: 0.2;
  margin-bottom: 16px;
}

.friends-empty__text {
  font-size: 1.1rem;
  color: #666;
  margin: 0 0 8px;
}

.friends-empty__hint {
  font-size: 0.82rem;
  color: #444;
  margin: 0;
  font-family: 'Courier New', monospace;
}

/* --- Footer / Apply section --- */
.friends-footer {
  margin-top: 60px;
  padding: 0 24px;
}

.friends-footer__inner {
  max-width: 600px;
  margin: 0 auto;
  padding: 28px 32px;
  background: #1c1c1c;
  border: 1px solid #2a2a2a;
  border-radius: 20px 20px 20px 0;
  text-align: center;
  position: relative;
}

.friends-footer__inner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, #fbfe00, transparent);
  border-radius: 2px 2px 0 0;
}

.friends-footer__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fbfe00;
  margin: 0 0 8px;
}

.friends-footer__desc {
  font-size: 0.82rem;
  color: #888;
  margin: 0;
  line-height: 1.6;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .friends-section {
    padding: 0 16px;
    margin-bottom: 40px;
  }

  .friends-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 14px;
  }

  .friends-header {
    padding: 40px 16px 28px;
  }

  .friend-card {
    padding: 22px 16px 16px;
  }

  .friend-card__avatar-wrap {
    width: 52px;
    height: 52px;
  }

  .friend-card__name {
    font-size: 0.88rem;
  }

  .friend-card__desc {
    font-size: 0.74rem;
  }
}

@media (max-width: 480px) {
  .friends-section {
    padding: 0 12px;
  }

  .friends-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .friend-card {
    padding: 18px 12px 14px;
    border-radius: 14px 14px 14px 0;
  }

  .friend-card__avatar-wrap {
    width: 44px;
    height: 44px;
    margin-bottom: 10px;
  }

  .friend-card__desc {
    display: none;
  }

  .friend-card__url {
    font-size: 0.6rem;
    padding: 3px 8px;
  }

  .friends-footer__inner {
    padding: 22px 20px;
    border-radius: 14px 14px 14px 0;
  }
}