/* ============================================
   POETRYTUBE — header.css
   ============================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(15, 10, 10, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px 0 20px;
  z-index: 100;
  gap: 16px;
}

/* ── Left section: hamburger + logo ─────────── */
.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.hamburger-btn {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: var(--radius-sm);
  min-width: 44px;
  min-height: 44px;
  justify-content: center;
  align-items: center;
  transition: background var(--transition);
}
.hamburger-btn:hover {
  background: var(--bg-hover);
}
.hamburger-btn span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.logo-icon {
  font-size: 1.4rem;
  line-height: 1;
  filter: drop-shadow(0 0 6px rgba(212,175,55,0.4));
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  background: linear-gradient(135deg, var(--text) 0%, var(--gold) 60%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}

/* ── Center: search bar ─────────────────────── */
.header-center {
  flex: 1;
  max-width: 520px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.search-form {
  display: flex;
  flex: 1;
  height: 38px;
}

.search-input {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-right: none;
  color: var(--text);
  padding: 0 16px;
  font-size: 0.875rem;
  border-radius: var(--radius-pill) 0 0 var(--radius-pill);
  outline: none;
  transition: border-color var(--transition);
  min-height: 38px;
}
.search-input::placeholder { color: var(--text-dim); }
.search-input:focus {
  border-color: var(--burgundy-light);
  background: var(--bg-hover);
}

.search-btn {
  width: 52px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-left: none;
  border-radius: 0 var(--radius-pill) var(--radius-pill) 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: background var(--transition), color var(--transition);
  min-height: 38px;
}
.search-btn:hover {
  background: var(--burgundy);
  color: var(--text);
}
.search-btn svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
}

/* ── Right section: actions ─────────────────── */
.header-right {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.header-action-btn {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-pill);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: background var(--transition), color var(--transition);
  position: relative;
}
.header-action-btn:hover {
  background: var(--bg-hover);
  color: var(--text);
}
.header-action-btn svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
}

.upload-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 16px;
  width: auto;
  height: 36px;
  border-radius: var(--radius-pill);
  background: var(--burgundy);
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: background var(--transition), box-shadow var(--transition);
}
.upload-btn:hover {
  background: var(--burgundy-light);
  box-shadow: 0 0 16px rgba(74,14,42,0.5);
}
.upload-btn svg {
  width: 16px;
  height: 16px;
}

.avatar-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--burgundy-mid);
  border: 2px solid var(--gold-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--gold);
  transition: border-color var(--transition);
  cursor: pointer;
}
.avatar-btn:hover { border-color: var(--gold); }

/* ── Mobile header adjustments ──────────────── */
@media (max-width: 768px) {
  .header-center {
    max-width: 100%;
  }
  .upload-btn .btn-label {
    display: none;
  }
  .upload-btn {
    width: 44px;
    padding: 0;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .site-header {
    padding: 0 12px;
    gap: 8px;
  }
  .logo-text { font-size: 1.1rem; }
  .header-action-btn:not(.upload-btn) {
    display: none;
  }
}